diff options
| author | Ian Lance Taylor <ian@airs.com> | 1993-01-08 21:11:21 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 1993-01-08 21:11:21 +0000 |
| commit | 075caafd65ac9b68ac028914f6fdeef43c1450a2 (patch) | |
| tree | f4f225c3e4f3b79e8fc1d114ebc334a1aebb9a73 | |
| parent | 003acb2d960fb7f32cfcb859d8fb00632a1494b0 (diff) | |
| download | gdb-075caafd65ac9b68ac028914f6fdeef43c1450a2.zip gdb-075caafd65ac9b68ac028914f6fdeef43c1450a2.tar.gz gdb-075caafd65ac9b68ac028914f6fdeef43c1450a2.tar.bz2 | |
These changes cut the size of libbfd.a on a Sun4 by about 11%.
Somewhat more could be done.
Fri Jan 8 15:47:53 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
* coffcode.h: Moved many generic functions into coffgen.c. Moved
swapping functions into coffswap.h for ECOFF use. Moved
relocation functions, only used by h8300 and z8k, into reloc16.c.
Added hooks for coffgen.c functions to backend data structure, and
added hook functions. Still more could be done.
* coffswap.h: New file to hold COFF swapping routines.
* coffgen.c: New file to hold generic COFF functions.
* reloc16.c: New file to hold h8300 and z8k specific relocation
functions.
* libcoff-in.h: Added declarations for functions in coffgen.c.
* libcoff.h: Rebuilt to incorporate changes.
* coff-h8300.c: Function name changes.
* coff-z8k.c: Function name changes. Use coff_reloc16_extra_cases
hook rather than defining EXTRA_CASES.
* Makefile.in: Build new files coffgen and reloc16. Added
dependencies of coff-*.o on coffswap.h and seclet.h.
| -rw-r--r-- | bfd/.Sanitize | 3 | ||||
| -rw-r--r-- | bfd/coff-z8k.c | 282 | ||||
| -rw-r--r-- | bfd/coffcode.h | 2722 | ||||
| -rw-r--r-- | bfd/coffgen.c | 1501 | ||||
| -rw-r--r-- | bfd/coffswap.h | 559 | ||||
| -rw-r--r-- | bfd/libcoff-in.h | 112 | ||||
| -rw-r--r-- | bfd/libcoff.h | 133 | ||||
| -rw-r--r-- | bfd/reloc16.c | 409 |
8 files changed, 3163 insertions, 2558 deletions
diff --git a/bfd/.Sanitize b/bfd/.Sanitize index addee21..ac8ea92 100644 --- a/bfd/.Sanitize +++ b/bfd/.Sanitize @@ -57,6 +57,8 @@ coff-rs6000.c coff-we32k.c coff-z8k.c coffcode.h +coffgen.c +coffswap.h config configure.bat configure.in @@ -102,6 +104,7 @@ newsos3.c oasys.c opncls.c reloc.c +reloc16.c rs6000-core.c sco-core.c seclet.c diff --git a/bfd/coff-z8k.c b/bfd/coff-z8k.c index 864b51e..d2ad241 100644 --- a/bfd/coff-z8k.c +++ b/bfd/coff-z8k.c @@ -1,7 +1,7 @@ -/* Zilog Z800n COFF back-end for BFD. - Copyright (C) 1992 Free Software Foundation, Inc. - Written by Steve Chamberlain - sac@cygnus.com +/* BFD back-end for Zilog Z800n COFF binaries. + Copyright 1992 Free Software Foundation, Inc. + Contributed by Cygnus Support. + Written by Steve Chamberlain, <sac@cygnus.com>. This file is part of BFD, the Binary File Descriptor library. @@ -19,7 +19,6 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - #include "bfd.h" #include "sysdep.h" #include "libbfd.h" @@ -33,51 +32,74 @@ extern bfd_error_vector_type bfd_error_vector; /* Dummy for now */ static bfd_reloc_status_type -DEFUN(func_da, (abfd, reloc_entry, symbol, data, input_section, output_bfd), - bfd *abfd AND - arelent *reloc_entry AND - struct symbol_cache_entry *symbol AND - PTR data AND - asection *input_section AND - bfd *output_bfd) +DEFUN (func_da, (abfd, reloc_entry, symbol, data, input_section, output_bfd), + bfd * abfd AND + arelent * reloc_entry AND + struct symbol_cache_entry *symbol AND + PTR data AND + asection * input_section AND + bfd * output_bfd) { } /* Dummy for now */ static bfd_reloc_status_type -DEFUN(func_jr, (abfd, reloc_entry, symbol, data, input_section, output_bfd), - bfd *abfd AND - arelent *reloc_entry AND - struct symbol_cache_entry *symbol AND - PTR data AND - asection *input_section AND - bfd *output_bfd) +DEFUN (func_imm8, (abfd, reloc_entry, symbol, data, input_section, output_bfd), + bfd * abfd AND + arelent * reloc_entry AND + struct symbol_cache_entry *symbol AND + PTR data AND + asection * input_section AND + bfd * output_bfd) { } -static reloc_howto_type r_da = - HOWTO(R_DA , 0, 1, 16, false, 0, true, -true,func_da,"r_da", true, 0x0000ffff,0x0000ffff, false); +/* Dummy for now */ +static bfd_reloc_status_type +DEFUN (func_jr, (abfd, reloc_entry, symbol, data, input_section, output_bfd), + bfd * abfd AND + arelent * reloc_entry AND + struct symbol_cache_entry *symbol AND + PTR data AND + asection * input_section AND + bfd * output_bfd) +{ +} -static reloc_howto_type r_jr = - HOWTO(R_JR, 0,1,8,true,0,true,true,func_jr,"r_jr", true,0,0,true); +static reloc_howto_type r_imm32 = +HOWTO (R_IMM32, 0, 1, 32, false, 0, true, + true, func_jr, "r_imm32", true, 0xffffffff, 0xffffffff, false); +static reloc_howto_type r_imm4l = +HOWTO (R_IMM4L, 0, 1, 4, false, 0, true, + true, func_jr, "r_imm4l", true, 0xf, 0xf, false); +static reloc_howto_type r_da = +HOWTO (R_DA, 0, 1, 16, false, 0, true, + true, func_da, "r_da", true, 0x0000ffff, 0x0000ffff, false); + +static reloc_howto_type r_imm8 = +HOWTO (R_IMM8, 0, 1, 8, false, 0, true, + true, func_imm8, "r_imm8", true, 0x000000ff, 0x000000ff, false); +static reloc_howto_type r_jr = +HOWTO (R_JR, 0, 1, 8, true, 0, true, true, func_jr, "r_jr", true, 0, 0, true); /* Turn a howto into a reloc number */ -static int coff_z8k_select_reloc(howto) -reloc_howto_type *howto; +static int +coff_z8k_select_reloc (howto) + reloc_howto_type *howto; { -return howto->type; + return howto->type; } + #define SELECT_RELOC(x,howto) x= coff_z8k_select_reloc(howto) #define BADMAG(x) Z8KBADMAG(x) -#define Z8K 1 /* Customize coffcode.h */ +#define Z8K 1 /* Customize coffcode.h */ #define __A_MAGIC_SET__ @@ -87,24 +109,35 @@ return howto->type; #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \ dst->r_stuff[0] = 'S'; \ - dst->r_stuff[1] = 'C'; + dst->r_stuff[1] = 'C'; /* Code to turn a r_type into a howto ptr, uses the above howto table */ -static void -DEFUN(rtype2howto,(internal, dst), -arelent *internal AND -struct internal_reloc *dst) +static void +DEFUN (rtype2howto, (internal, dst), + arelent * internal AND + struct internal_reloc *dst) { - switch (dst->r_type) { - default: - printf("BAD %x\n", dst->r_type); - case R_DA: - internal->howto = &r_da; - break; - case R_JR: - internal->howto = &r_jr; + switch (dst->r_type) + { + default: + printf ("BAD %x\n", dst->r_type); + case R_IMM8: + internal->howto = &r_imm8; + break; + case R_DA: + internal->howto = &r_da; + break; + case R_JR: + internal->howto = &r_jr; + break; + case R_IMM32: + internal->howto = &r_imm32; + break; + case R_IMM4L: + internal->howto = &r_imm4l; + break; } } @@ -117,43 +150,37 @@ struct internal_reloc *dst) #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \ cache_ptr->addend = ext_reloc.r_offset; - + #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \ reloc_processing(relent, reloc, symbols, abfd, section) -static void DEFUN(reloc_processing,(relent,reloc, symbols, abfd, section) , - arelent *relent AND - struct internal_reloc *reloc AND - asymbol **symbols AND - bfd *abfd AND - asection *section) +static void +DEFUN (reloc_processing, (relent, reloc, symbols, abfd, section), + arelent * relent AND + struct internal_reloc *reloc AND + asymbol ** symbols AND + bfd * abfd AND + asection * section) { - relent->address = reloc->r_vaddr; - rtype2howto(relent,reloc); - - if (reloc->r_symndx > 0) - { - - relent->sym_ptr_ptr = symbols + obj_convert(abfd)[reloc->r_symndx]; - - } - else - { - relent->sym_ptr_ptr = &(bfd_abs_symbol); - } - - - + relent->address = reloc->r_vaddr; + rtype2howto (relent, reloc); + + if (reloc->r_symndx > 0) + { + relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; + } + else + { + relent->sym_ptr_ptr = &(bfd_abs_symbol); + } + + relent->addend = reloc->r_offset; - - relent->address-= section->vma; -/* relent->section = 0;*/ + relent->address -= section->vma; } -static bfd_vma get_value(); - static void -extra_case(in_abfd, seclet, reloc, data, src_ptr, dst_ptr) +extra_case (in_abfd, seclet, reloc, data, src_ptr, dst_ptr) bfd *in_abfd; bfd_seclet_type *seclet; arelent *reloc; @@ -161,49 +188,73 @@ extra_case(in_abfd, seclet, reloc, data, src_ptr, dst_ptr) unsigned int *src_ptr; unsigned int *dst_ptr; { - switch (reloc->howto->type) - { - case R_DA: - bfd_put_16(in_abfd, get_value(reloc, seclet), data+*dst_ptr); - (*dst_ptr)+=2; - ( *src_ptr)+=2; - break; - case R_JR: - { - bfd_vma dst = get_value(reloc,seclet); - bfd_vma dot = seclet->offset - + *dst_ptr - + seclet->u.indirect.section->output_section->vma; - int gap = dst - dot - 1 ; /* -1 since were in the odd byte of the - word */ - if (gap & 1) - abort(); - gap/=2; - if (gap > 128 || gap< -128) - { - bfd_error_vector.reloc_value_truncated(reloc, seclet); - } - bfd_put_8(in_abfd, gap, data+*dst_ptr); - (*dst_ptr)++; - (*src_ptr)++; - break; - } - default: - abort(); - } + switch (reloc->howto->type) + { + case R_IMM8: + bfd_put_8 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet), + data + *dst_ptr); + (*dst_ptr) += 1; + (*src_ptr) += 1; + break; + + case R_IMM32: + bfd_put_32 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet), + data + *dst_ptr); + (*dst_ptr) += 4; + (*src_ptr) += 4; + break; + + case R_IMM4L: + bfd_put_8 (in_abfd, + (bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0) + | (0x0f & bfd_coff_reloc16_get_value (reloc, seclet)), + data + *dst_ptr); + (*dst_ptr) += 1; + (*src_ptr) += 1; + break; + + case R_DA: + bfd_put_16 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet), + data + *dst_ptr); + (*dst_ptr) += 2; + (*src_ptr) += 2; + break; + + case R_JR: + { + bfd_vma dst = bfd_coff_reloc16_get_value (reloc, seclet); + bfd_vma dot = seclet->offset + + *dst_ptr + + seclet->u.indirect.section->output_section->vma; + int gap = dst - dot - 1;/* -1 since were in the odd byte of the + word and the pc's been incremented */ + + if (gap & 1) + abort (); + gap /= 2; + if (gap > 128 || gap < -128) + { + bfd_error_vector.reloc_value_truncated (reloc, seclet); + } + bfd_put_8 (in_abfd, gap, data + *dst_ptr); + (*dst_ptr)++; + (*src_ptr)++; + break; + } + default: + abort (); + } } -#define EXTRA_CASES default: extra_case(in_abfd,seclet,reloc, data, &src_address, &dst_address); - - +#define coff_reloc16_extra_cases extra_case #include "coffcode.h" -#undef coff_bfd_get_relocated_section_contents +#undef coff_bfd_get_relocated_section_contents #undef coff_bfd_relax_section -#define coff_bfd_get_relocated_section_contents bfd_coff_get_relocated_section_contents -#define coff_bfd_relax_section bfd_coff_relax_section +#define coff_bfd_get_relocated_section_contents bfd_coff_reloc16_get_relocated_section_contents +#define coff_bfd_relax_section bfd_coff_reloc16_relax_section bfd_target z8kcoff_vec = { @@ -216,21 +267,22 @@ bfd_target z8kcoff_vec = HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), - ( SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ '_', /* leading symbol underscore */ '/', /* ar_pad_char */ 15, /* ar_max_namelen */ 1, /* minimum section alignment */ - _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */ - _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */ + _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */ + _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */ - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ + {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ bfd_generic_archive_p, _bfd_dummy_target}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ + {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ + {bfd_false, coff_write_object_contents, /* bfd_write_contents */ _bfd_write_archive_contents, bfd_false}, - JUMP_TABLE(coff), - COFF_SWAP_TABLE - }; + JUMP_TABLE (coff), + 0, 0, + COFF_SWAP_TABLE, +}; diff --git a/bfd/coffcode.h b/bfd/coffcode.h index fe10087..c2c65e7 100644 --- a/bfd/coffcode.h +++ b/bfd/coffcode.h @@ -36,19 +36,15 @@ SECTION files and a number of implementation specific files. For example, The 88k bcs coff format is implemented in the file @code{coff-m88k.c}. This file @code{#include}s - @code{coff-m88k.h} which defines the external structure of the - coff format for the 88k, and @code{internalcoff.h} which + @code{coff/m88k.h} which defines the external structure of the + coff format for the 88k, and @code{coff/internal.h} which defines the internal structure. @code{coff-m88k.c} also - defines pthe relocations used by the 88k format - @xref{Relocations}. Then the major portion of coff code is - included (@code{coffcode.h}) which defines the methods used to - act upon the types defined in @code{coff-m88k.h} and - @code{internalcoff.h}. - + defines the relocations used by the 88k format + @xref{Relocations}. The Intel i960 processor version of coff is implemented in @code{coff-i960.c}. This file has the same structure as - @code{coff-m88k.c}, except that it includes @code{coff-i960.h} + @code{coff-m88k.c}, except that it includes @code{coff/i960.h} rather than @code{coff-m88k.h}. SUBSECTION @@ -59,12 +55,12 @@ SUBSECTION you want to use, for our purposes, we'll say that i386 coff is the one you select, and that your coff flavour is called foo. Copy the @code{i386coff.c} to @code{foocoff.c}, copy - @code{../include/i386coff.h} to @code{../include/foocoff.h} + @code{../include/coff/i386.h} to @code{../include/coff/foo.h} and add the lines to @code{targets.c} and @code{Makefile.in} so that your new back end is used. Alter the shapes of the - structures in @code{../include/foocoff.h} so that they match + structures in @code{../include/coff/foo.h} so that they match what you need. You will probably also have to add - @code{#ifdef}s to the code in @code{internalcoff.h} and + @code{#ifdef}s to the code in @code{coff/internal.h} and @code{coffcode.h} if your version of coff is too wild. You can verify that your new BFD backend works quite simply by @@ -80,12 +76,45 @@ SUBSECTION How The Coff Backend Works SUBSUBSECTION + File Layout + + The Coff backend is split into generic routines that are + applicable to any Coff target and routines that are specific + to a particular target. The target-specific routines are + further split into ones which are basically the same for all + Coff targets except that they use the external symbol format + or use different values for certain constants. + + The generic routines are in @file{coffgen.c}. These routines + work for any Coff target. They use some hooks into the target + specific code; the hooks are in a @code{bfd_coff_backend_data} + structure, one of which exists for each target. + + The essentially similar target-specific routines are in + @file{coffcode.h}. This header file includes executable code. + The various Coff targets first include the appropriate Coff + header file, make any special defines that are needed, and + then include @file{coffcode.h}. + + Some of the Coff targets then also have additional routines in + the target source file itself. + + For example, @file{coff-i960.c} includes + @file{coff/internal.h} and @file{coff/i960.h}. It then + defines a few constants, such as @code{I960}, and includes + @file{coffcode.h}. Since the i960 has complex relocation + types, @file{coff-i960.c} also includes some code to + manipulate the i960 relocs. This code is not in + @file{coffcode.h} because it would not be used by any other + target. + +SUBSUBSECTION Bit Twiddling Each flavour of coff supported in BFD has its own header file descibing the external layout of the structures. There is also an internal description of the coff layout (in - @code{internalcoff.h}). A major function of the + @code{coff/internal.h}). A major function of the coff backend is swapping the bytes and twiddling the bits to translate the external form of the structures into the normal internal form. This is all performed in the @@ -124,7 +153,7 @@ SUBSUBSECTION When a symbol table is requested (through a call to @code{bfd_canonicalize_symtab}, a request gets through to - @code{get_normalized_symtab}. This reads the symbol table from + @code{coff_get_normalized_symtab}. This reads the symbol table from the coff file and swaps all the structures inside into the internal form. It also fixes up all the pointers in the table (represented in the file by offsets from the first symbol in @@ -263,66 +292,7 @@ CODE_FRAGMENT */ #include "seclet.h" -extern bfd_error_vector_type bfd_error_vector; - - - - -#define PUTWORD bfd_h_put_32 -#define PUTHALF bfd_h_put_16 -#define PUTBYTE bfd_h_put_8 - -#ifndef GET_FCN_LNNOPTR -#define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) -#endif - -#ifndef GET_FCN_ENDNDX -#define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) -#endif - -#ifndef PUT_FCN_LNNOPTR -#define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) -#endif -#ifndef PUT_FCN_ENDNDX -#define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) -#endif -#ifndef GET_LNSZ_LNNO -#define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno) -#endif -#ifndef GET_LNSZ_SIZE -#define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size) -#endif -#ifndef PUT_LNSZ_LNNO -#define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno) -#endif -#ifndef PUT_LNSZ_SIZE -#define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size) -#endif -#ifndef GET_SCN_SCNLEN -#define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen) -#endif -#ifndef GET_SCN_NRELOC -#define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc) -#endif -#ifndef GET_SCN_NLINNO -#define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno) -#endif -#ifndef PUT_SCN_SCNLEN -#define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen) -#endif -#ifndef PUT_SCN_NRELOC -#define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc) -#endif -#ifndef PUT_SCN_NLINNO -#define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno) -#endif -#ifndef GET_LINENO_LNNO -#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno)); -#endif -#ifndef PUT_LINENO_LNNO -#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno)); -#endif - +#include "coffswap.h" /* void warning(); */ @@ -387,9 +357,12 @@ DEFUN(sec_to_styp_flags, (sec_name, sec_flags), * in sec_to_styp_flags(). */ static flagword -DEFUN(styp_to_sec_flags, (styp_flags), - long styp_flags) +DEFUN(styp_to_sec_flags, (abfd, hdr), + bfd *abfd AND + PTR hdr) { + struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; + long styp_flags = internal_s->s_flags; flagword sec_flags=0; #ifdef STYP_NOLOAD @@ -445,12 +418,6 @@ DEFUN(styp_to_sec_flags, (styp_flags), } #define get_index(symbol) ((int) (symbol)->udata) -#define set_index(symbol, idx) ((symbol)->udata =(PTR) (idx)) - -/* ********************************************************************** -Here are all the routines for swapping the structures seen in the -outside world into the internal forms. -*/ /* INTERNAL_DEFINITION @@ -518,6 +485,60 @@ Special entry points for gas to swap coff parts . PTR in, . PTR out)); . + +Special entry points for generic COFF routines to call target +dependent COFF routines + +. unsigned int _bfd_filhsz; +. unsigned int _bfd_aoutsz; +. unsigned int _bfd_scnhsz; +. unsigned int _bfd_symesz; +. unsigned int _bfd_auxesz; +. unsigned int _bfd_linesz; +. boolean _bfd_coff_long_filenames; +. void (*_bfd_coff_swap_filehdr_in) PARAMS (( +. bfd *abfd, +. PTR ext, +. PTR in)); +. void (*_bfd_coff_swap_aouthdr_in) PARAMS (( +. bfd *abfd, +. PTR ext, +. PTR in)); +. void (*_bfd_coff_swap_scnhdr_in) PARAMS (( +. bfd *abfd, +. PTR ext, +. PTR in)); +. boolean (*_bfd_coff_bad_format_hook) PARAMS (( +. bfd *abfd, +. PTR internal_filehdr)); +. boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( +. bfd *abfd, +. PTR internal_filehdr)); +. PTR (*_bfd_coff_mkobject_hook) PARAMS (( +. bfd *abfd, +. PTR internal_filehdr)); +. flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( +. bfd *abfd, +. PTR internal_scnhdr)); +. asection *(*_bfd_make_section_hook) PARAMS (( +. bfd *abfd, +. char *name)); +. void (*_bfd_set_alignment_hook) PARAMS (( +. bfd *abfd, +. asection *sec, +. PTR internal_scnhdr)); +. boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( +. bfd *abfd)); +. boolean (*_bfd_coff_symname_in_debug) PARAMS (( +. bfd *abfd, +. struct internal_syment *sym)); +. void (*_bfd_coff_reloc16_extra_cases) PARAMS (( +. bfd *abfd, +. bfd_seclet_type *seclet, +. arelent *reloc, +. bfd_byte *data, +. unsigned int *src_ptr, +. unsigned int *dst_ptr)); .} bfd_coff_backend_data; . .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) @@ -552,488 +573,100 @@ Special entry points for gas to swap coff parts .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) . +.#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) +.#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) +.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) +.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) +.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) +.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) +.#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) +.#define bfd_coff_swap_filehdr_in(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) +. +.#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) +. +.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) +. +.#define bfd_coff_bad_format_hook(abfd, filehdr) \ +. ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) +. +.#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ +. ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) +.#define bfd_coff_mkobject_hook(abfd, filehdr)\ +. ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr)) +. +.#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr)\ +. ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr)) +. +.#define bfd_coff_make_section_hook(abfd, name)\ +. ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name)) +. +.#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ +. ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) +. +.#define bfd_coff_slurp_symbol_table(abfd)\ +. ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) +. +.#define bfd_coff_symname_in_debug(abfd, sym)\ +. ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) +. +.#define bfd_coff_reloc16_extra_cases(abfd, seclet, reloc, data, src_ptr, dst_ptr)\ +. ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ +. (abfd, seclet, reloc, data, src_ptr, dst_ptr)) +. */ -static void -DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst), - bfd *abfd AND - RELOC *reloc_src AND - struct internal_reloc *reloc_dst) -{ - reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); - reloc_dst->r_symndx = bfd_h_get_32(abfd, (bfd_byte *) reloc_src->r_symndx); - -#ifdef RS6000COFF_C - reloc_dst->r_type = bfd_h_get_8(abfd, reloc_src->r_type); - reloc_dst->r_size = bfd_h_get_8(abfd, reloc_src->r_size); -#else - reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); -#endif - -#ifdef SWAP_IN_RELOC_OFFSET - reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd, - (bfd_byte *) reloc_src->r_offset); -#endif -} - - -static unsigned int -DEFUN(coff_swap_reloc_out,(abfd, src, dst), - bfd *abfd AND - PTR src AND - PTR dst) -{ - struct internal_reloc *reloc_src = (struct internal_reloc *)src; - struct external_reloc *reloc_dst = (struct external_reloc *)dst; - bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); - bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); - bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) - reloc_dst->r_type); - -#ifdef SWAP_OUT_RELOC_OFFSET - SWAP_OUT_RELOC_OFFSET(abfd, - reloc_src->r_offset, - (bfd_byte *) reloc_dst->r_offset); -#endif -#ifdef SWAP_OUT_RELOC_EXTRA - SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst); -#endif - - return sizeof(struct external_reloc); -} - -static void -DEFUN(bfd_swap_filehdr_in,(abfd, filehdr_src, filehdr_dst), - bfd *abfd AND - FILHDR *filehdr_src AND - struct internal_filehdr *filehdr_dst) -{ - filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); - filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); - filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); - filehdr_dst->f_symptr = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_symptr); - filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); - filehdr_dst->f_opthdr = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_opthdr); - filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); -} - -static unsigned int -DEFUN(coff_swap_filehdr_out,(abfd, in, out), - bfd *abfd AND - PTR in AND - PTR out) -{ - struct internal_filehdr *filehdr_in = (struct internal_filehdr *)in; - FILHDR *filehdr_out = (FILHDR *)out; - bfd_h_put_16(abfd, filehdr_in->f_magic, (bfd_byte *) filehdr_out->f_magic); - bfd_h_put_16(abfd, filehdr_in->f_nscns, (bfd_byte *) filehdr_out->f_nscns); - bfd_h_put_32(abfd, filehdr_in->f_timdat, (bfd_byte *) filehdr_out->f_timdat); - bfd_h_put_32(abfd, filehdr_in->f_symptr, (bfd_byte *) filehdr_out->f_symptr); - bfd_h_put_32(abfd, filehdr_in->f_nsyms, (bfd_byte *) filehdr_out->f_nsyms); - bfd_h_put_16(abfd, filehdr_in->f_opthdr, (bfd_byte *) filehdr_out->f_opthdr); - bfd_h_put_16(abfd, filehdr_in->f_flags, (bfd_byte *) filehdr_out->f_flags); - return sizeof(FILHDR); -} - - -#ifndef NO_COFF_SYMBOLS - -static void -DEFUN(coff_swap_sym_in,(abfd, ext1, in1), - bfd *abfd AND - PTR ext1 AND - PTR in1) -{ - SYMENT *ext = (SYMENT *)ext1; - struct internal_syment *in = (struct internal_syment *)in1; - - if( ext->e.e_name[0] == 0) { - in->_n._n_n._n_zeroes = 0; - in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset); - } - else { -#if SYMNMLEN != E_SYMNMLEN - -> Error, we need to cope with truncating or extending SYMNMLEN!; -#else - memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN); -#endif - } - in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value); - in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum); - if (sizeof(ext->e_type) == 2){ - in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type); - } - else { - in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type); - } - in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); - in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); -} - -static unsigned int -DEFUN(coff_swap_sym_out,(abfd, inp, extp), - bfd *abfd AND - PTR inp AND - PTR extp) -{ - struct internal_syment *in = (struct internal_syment *)inp; - SYMENT *ext =(SYMENT *)extp; - if(in->_n._n_name[0] == 0) { - bfd_h_put_32(abfd, 0, (bfd_byte *) ext->e.e.e_zeroes); - bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e.e.e_offset); - } - else { -#if SYMNMLEN != E_SYMNMLEN - -> Error, we need to cope with truncating or extending SYMNMLEN!; -#else - memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN); -#endif - } - bfd_h_put_32(abfd, in->n_value , (bfd_byte *) ext->e_value); - bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum); - if (sizeof(ext->e_type) == 2) - { - bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type); - } - else - { - bfd_h_put_32(abfd, in->n_type , (bfd_byte *) ext->e_type); - } - bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass); - bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux); - return sizeof(SYMENT); -} - -static void -DEFUN(coff_swap_aux_in,(abfd, ext1, type, class, in1), - bfd *abfd AND - PTR ext1 AND - int type AND - int class AND - PTR in1) -{ - AUXENT *ext = (AUXENT *)ext1; - union internal_auxent *in = (union internal_auxent *)in1; - - switch (class) { - case C_FILE: - if (ext->x_file.x_fname[0] == 0) { - in->x_file.x_n.x_zeroes = 0; - in->x_file.x_n.x_offset = - bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset); - } else { -#if FILNMLEN != E_FILNMLEN - -> Error, we need to cope with truncating or extending FILNMLEN!; -#else - memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN); -#endif - } - break; - - /* RS/6000 "csect" auxents */ -#ifdef RS6000COFF_C - case C_EXT: - case C_HIDEXT: - in->x_csect.x_scnlen = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_scnlen); - in->x_csect.x_parmhash = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_parmhash); - in->x_csect.x_snhash = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snhash); - /* We don't have to hack bitfields in x_smtyp because it's defined by - shifts-and-ands, which are equivalent on all byte orders. */ - in->x_csect.x_smtyp = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smtyp); - in->x_csect.x_smclas = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smclas); - in->x_csect.x_stab = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_stab); - in->x_csect.x_snstab = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snstab); - break; -#endif - - case C_STAT: -#ifdef C_LEAFSTAT - case C_LEAFSTAT: -#endif - case C_HIDDEN: - if (type == T_NULL) { - in->x_scn.x_scnlen = GET_SCN_SCNLEN(abfd, ext); - in->x_scn.x_nreloc = GET_SCN_NRELOC(abfd, ext); - in->x_scn.x_nlinno = GET_SCN_NLINNO(abfd, ext); - break; - } - default: - in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx); -#ifndef NO_TVNDX - in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx); -#endif - - if (ISARY(type)) { -#if DIMNUM != E_DIMNUM - -> Error, we need to cope with truncating or extending DIMNUM!; -#else - in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[0]); - in->x_sym.x_fcnary.x_ary.x_dimen[1] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[1]); - in->x_sym.x_fcnary.x_ary.x_dimen[2] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[2]); - in->x_sym.x_fcnary.x_ary.x_dimen[3] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[3]); -#endif - } - if (class == C_BLOCK || ISFCN(type) || ISTAG(class)) { - in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext); - in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext); - } - - if (ISFCN(type)) { - in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize); - } - else { - in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext); - in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext); - } - } -} - -static unsigned int -DEFUN(coff_swap_aux_out,(abfd, inp, type, class, extp), - bfd *abfd AND - PTR inp AND - int type AND - int class AND - PTR extp) -{ - union internal_auxent *in = (union internal_auxent *)inp; - AUXENT *ext = (AUXENT *)extp; - - memset((PTR)ext, 0, AUXESZ); - switch (class) { - case C_FILE: - if (in->x_file.x_fname[0] == 0) { - PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes); - PUTWORD(abfd, - in->x_file.x_n.x_offset, - (bfd_byte *) ext->x_file.x_n.x_offset); - } - else { -#if FILNMLEN != E_FILNMLEN - -> Error, we need to cope with truncating or extending FILNMLEN!; -#else - memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN); -#endif - } - break; - -#ifdef RS6000COFF_C - /* RS/6000 "csect" auxents */ - case C_EXT: - case C_HIDEXT: - PUTWORD (abfd, in->x_csect.x_scnlen, ext->x_csect.x_scnlen); - PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash); - PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash); - /* We don't have to hack bitfields in x_smtyp because it's defined by - shifts-and-ands, which are equivalent on all byte orders. */ - PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp); - PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas); - PUTWORD (abfd, in->x_csect.x_stab, ext->x_csect.x_stab); - PUTHALF (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab); - break; -#endif - - case C_STAT: -#ifdef C_LEAFSTAT - case C_LEAFSTAT: -#endif - case C_HIDDEN: - if (type == T_NULL) { - PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext); - PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext); - PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext); - break; - } - default: - PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx); -#ifndef NO_TVNDX - bfd_h_put_16(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx); -#endif - - if (class == C_BLOCK || ISFCN(type) || ISTAG(class)) { - PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext); - PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext); - } - - if (ISFCN(type)) { - PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize); - } - else { - if (ISARY(type)) { -#if DIMNUM != E_DIMNUM - -> Error, we need to cope with truncating or extending DIMNUM!; -#else - bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[0]); - bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[1]); - bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[2]); - bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[3]); -#endif - } - PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext); - PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext); - } - } -return sizeof(AUXENT); -} +/* See whether the magic number matches. */ -#endif /* NO_COFF_SYMBOLS */ - -#ifndef NO_COFF_LINENOS - -static void -DEFUN(coff_swap_lineno_in,(abfd, ext1, in1), - bfd *abfd AND - PTR ext1 AND - PTR in1) -{ - LINENO *ext = (LINENO *)ext1; - struct internal_lineno *in = (struct internal_lineno *)in1; - - in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx); - in->l_lnno = GET_LINENO_LNNO(abfd, ext); -} - -static unsigned int -DEFUN(coff_swap_lineno_out,(abfd, inp, outp), - bfd *abfd AND - PTR inp AND - PTR outp) +static boolean +DEFUN(coff_bad_format_hook, (abfd, filehdr), + bfd *abfd AND + PTR filehdr) { - struct internal_lineno *in = (struct internal_lineno *)inp; - struct external_lineno *ext = (struct external_lineno *)outp; - PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *) - ext->l_addr.l_symndx); - - PUT_LINENO_LNNO (abfd, in->l_lnno, ext); - return sizeof(struct external_lineno); -} - -#endif /* NO_COFF_LINENOS */ + struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; + if (BADMAG (*internal_f)) + return false; -static void -DEFUN(bfd_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1), - bfd *abfd AND - PTR aouthdr_ext1 AND - PTR aouthdr_int1) -{ - AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1; - struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1; - - aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic); - aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp); - aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize); - aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize); - aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize); - aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry); - aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start); - aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start); -#ifdef I960 - aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries); -#endif + /* if the optional header is NULL or not the correct size then + quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) + and Intel 960 readwrite headers (I960WRMAGIC) is that the + optional header is of a different size. -#ifdef RS6000COFF_C - aouthdr_int->o_toc = bfd_h_get_32(abfd, aouthdr_ext->o_toc); - aouthdr_int->o_snentry = bfd_h_get_16(abfd, aouthdr_ext->o_snentry); - aouthdr_int->o_sntext = bfd_h_get_16(abfd, aouthdr_ext->o_sntext); - aouthdr_int->o_sndata = bfd_h_get_16(abfd, aouthdr_ext->o_sndata); - aouthdr_int->o_sntoc = bfd_h_get_16(abfd, aouthdr_ext->o_sntoc); - aouthdr_int->o_snloader = bfd_h_get_16(abfd, aouthdr_ext->o_snloader); - aouthdr_int->o_snbss = bfd_h_get_16(abfd, aouthdr_ext->o_snbss); - aouthdr_int->o_algntext = bfd_h_get_16(abfd, aouthdr_ext->o_algntext); - aouthdr_int->o_algndata = bfd_h_get_16(abfd, aouthdr_ext->o_algndata); - aouthdr_int->o_modtype = bfd_h_get_16(abfd, aouthdr_ext->o_modtype); - aouthdr_int->o_maxstack = bfd_h_get_32(abfd, aouthdr_ext->o_maxstack); -#endif -} + But the mips keeps extra stuff in it's opthdr, so dont check + when doing that + */ -static unsigned int -DEFUN(coff_swap_aouthdr_out,(abfd, in, out), - bfd *abfd AND - PTR in AND - PTR out) -{ - struct internal_aouthdr *aouthdr_in = (struct internal_aouthdr *)in; - AOUTHDR *aouthdr_out = (AOUTHDR *)out; - bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic); - bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp); - bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize); - bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize); - bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize); - bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry); - bfd_h_put_32(abfd, aouthdr_in->text_start, - (bfd_byte *) aouthdr_out->text_start); - bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start); -#ifdef I960 - bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries); +#if defined(M88) || defined(I960) + if (internal_f->f_opthdr != 0 && AOUTSZ != internal_f->f_opthdr) + return false; #endif - return sizeof(AOUTHDR); -} -static void -DEFUN(coff_swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int), - bfd *abfd AND - SCNHDR *scnhdr_ext AND - struct internal_scnhdr *scnhdr_int) -{ - memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name)); - scnhdr_int->s_vaddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_vaddr); - scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr); - scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size); - - scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr); - scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr); - scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); - scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); -#if defined(M88) - scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); - scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); -#else - scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); - scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); -#endif -#ifdef I960 - scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align); -#endif + return true; } -static unsigned int -DEFUN(coff_swap_scnhdr_out,(abfd, in, out), - bfd *abfd AND - PTR in AND - PTR out) +static asection * +DEFUN (coff_make_section_hook, (abfd, name), + bfd *abfd AND + char *name) { - struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *)in; - SCNHDR *scnhdr_ext = (SCNHDR *)out; - memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name)); - PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr); - PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr); - PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size); - PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr); - PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr); - PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr); - PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags); -#if defined(M88) - PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); - PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); -#else - PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); - PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); -#endif - -#if defined(I960) - PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align); +#ifdef TWO_DATA_SECS + /* On SCO a file created by the Microsoft assembler can have two + .data sections. We use .data2 for the second one. */ + if (strcmp (name, _DATA) == 0) + return bfd_make_section (abfd, ".data2"); #endif - return sizeof(SCNHDR); + return (asection *) NULL; } - /* initialize a section structure with information peculiar to this particular implementation of coff */ -static boolean +static boolean DEFUN(coff_new_section_hook,(abfd, section), bfd *abfd AND asection *section) @@ -1049,147 +682,108 @@ DEFUN(coff_new_section_hook,(abfd, section), return true; } -static asection bfd_debug_section = { "*DEBUG*" }; - -/* Take a section header read from a coff file (in HOST byte order), - and make a BFD "section" out of it. */ -static boolean -DEFUN(make_a_section_from_file,(abfd, hdr, target_index), - bfd *abfd AND - struct internal_scnhdr *hdr AND - unsigned int target_index) -{ - asection *return_section; - char *name; - - /* Assorted wastage to null-terminate the name, thanks AT&T! */ - name = bfd_alloc(abfd, sizeof (hdr->s_name)+1); - if (name == NULL) { - bfd_error = no_memory; - return false; - } - strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); - name[sizeof (hdr->s_name)] = 0; - - return_section = bfd_make_section(abfd, name); -#ifdef TWO_DATA_SECS - /* On SCO a file created by the Microsoft assembler can have two - .data sections. We use .data2 for the second one. */ - if (return_section == NULL && strcmp(name, _DATA) == 0) - return_section = bfd_make_section(abfd, ".data2"); -#endif /* TWO_DATA_SECS */ - if (return_section == NULL) - return false; - - /* s_paddr is presumed to be = to s_vaddr */ - return_section->vma = hdr->s_vaddr; - return_section->_raw_size = hdr->s_size; - return_section->filepos = hdr->s_scnptr; - return_section->rel_filepos = hdr->s_relptr; - return_section->reloc_count = hdr->s_nreloc; #ifdef I960 - /* FIXME, use a temp var rather than alignment_power */ - return_section->alignment_power = hdr->s_align; +/* Set the alignment of a BFD section. */ + +static void +DEFUN (coff_set_alignment_hook, (abfd, section, scnhdr), + bfd *abfd AND + asection *section AND + PTR scnhdr) { - unsigned int i; - for (i = 0; i < 32; i++) { - if ((1 << i) >= (int) (return_section->alignment_power)) { - return_section->alignment_power = i; - break; - } - } + struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; + unsigned int i; + + for (i = 0; i < 32; i++) + if ((1 << i) >= hdr->s_align) + break; + section->alignment_power = i; } -#endif -return_section->line_filepos = hdr->s_lnnoptr; - /* - return_section->linesize = hdr->s_nlnno * sizeof (struct lineno); - */ +#else /* ! I960 */ - return_section->lineno_count = hdr->s_nlnno; - return_section->userdata = NULL; - return_section->next = (asection *) NULL; - return_section->flags = styp_to_sec_flags(hdr->s_flags); +#define coff_set_alignment_hook \ + ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) - return_section->target_index = target_index; +#endif /* ! I960 */ - if (hdr->s_nreloc != 0) - return_section->flags |= SEC_RELOC; - /* FIXME: should this check 'hdr->s_size > 0' */ - if (hdr->s_scnptr != 0) - return_section->flags |= SEC_HAS_CONTENTS; - return true; -} static boolean DEFUN(coff_mkobject,(abfd), bfd *abfd) { - abfd->tdata.coff_obj_data = (struct coff_tdata *)bfd_zalloc (abfd,sizeof(coff_data_type)); + coff_data_type *coff; + + abfd->tdata.coff_obj_data = (struct coff_tdata *)bfd_zalloc (abfd,sizeof(coff_data_type)); if (abfd->tdata.coff_obj_data == 0){ bfd_error = no_memory; return false; } - coff_data(abfd)->relocbase = 0; + coff = coff_data (abfd); + coff->symbols = (coff_symbol_type *) NULL; + coff->conversion_table = (unsigned int *) NULL; + coff->raw_syments = (struct coff_ptr_struct *) NULL; + coff->raw_linenos = (struct lineno *) NULL; + coff->relocbase = 0; /* make_abs_section(abfd);*/ return true; } -static -bfd_target * -DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a), - bfd *abfd AND - unsigned nscns AND - struct internal_filehdr *internal_f AND - struct internal_aouthdr *internal_a) +/* Create the COFF backend specific information. */ + +static PTR +DEFUN(coff_mkobject_hook,(abfd, filehdr), + bfd *abfd AND + PTR filehdr) { + struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; coff_data_type *coff; - enum bfd_architecture arch; - long machine; - size_t readsize; /* length of file_info */ - SCNHDR *external_sections; - /* Build a play area */ - if (coff_mkobject(abfd) != true) - return 0; + if (coff_mkobject (abfd) == false) + return NULL; - coff = coff_data(abfd); + coff = coff_data (abfd); + coff->sym_filepos = internal_f->f_symptr; + coff->flags = internal_f->f_flags; - external_sections = (SCNHDR *)bfd_alloc(abfd, readsize = (nscns * SCNHSZ)); + /* These members communicate important constants about the symbol + table to GDB's symbol-reading code. These `constants' + unfortunately vary among coff implementations... */ + coff->local_n_btmask = N_BTMASK; + coff->local_n_btshft = N_BTSHFT; + coff->local_n_tmask = N_TMASK; + coff->local_n_tshift = N_TSHIFT; + coff->local_symesz = SYMESZ; + coff->local_auxesz = AUXESZ; + coff->local_linesz = LINESZ; - if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) { - goto fail; - } + return (PTR) coff; +} +/* Determine the machine architecture and type. FIXME: This is target + dependent because the magic numbers are defined in the target + dependent header files. But there is no particular need for this. + If the magic numbers were moved to a separate file, this function + would be target independent and would also be much more successful + at linking together COFF files for different architectures. */ - /* Now copy data as required; construct all asections etc */ - coff->symbol_index_slew = 0; - coff->relocbase =0; - coff->raw_syment_count = 0; - coff->raw_linenos = 0; - coff->raw_syments = 0; - coff->sym_filepos =0; - coff->flags = internal_f->f_flags; - if (nscns != 0) { - unsigned int i; - for (i = 0; i < nscns; i++) { - struct internal_scnhdr tmp; - coff_swap_scnhdr_in(abfd, external_sections + i, &tmp); - make_a_section_from_file(abfd,&tmp, i+1); - } - } +static boolean +DEFUN (coff_set_arch_mach_hook, (abfd, filehdr), + bfd *abfd AND + PTR filehdr) +{ + long machine; + enum bfd_architecture arch; + struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; -/* make_abs_section(abfd);*/ - - /* Determine the machine architecture and type. */ -machine = 0; + machine = 0; switch (internal_f->f_magic) { #ifdef I386MAGIC case I386MAGIC: -#ifdef I386SVMAGIC - case I386SVMAGIC: /* System V C Compiler aix ps2 */ +#ifdef I386AIXMAGIC + case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ #endif arch = bfd_arch_i386; machine = 0; @@ -1232,16 +826,16 @@ machine = 0; case Z8KMAGIC: arch = bfd_arch_z8k; switch (internal_f->f_flags & F_MACHMASK) -{ - case F_Z8001: - machine = bfd_mach_z8001; - break; - case F_Z8002: - machine = bfd_mach_z8002; - break; - default: - goto fail; - } + { + case F_Z8001: + machine = bfd_mach_z8001; + break; + case F_Z8002: + machine = bfd_mach_z8002; + break; + default: + return false; + } break; #endif #ifdef I960 @@ -1299,632 +893,30 @@ machine = 0; #endif default: /* Unreadable input file type */ - arch = bfd_arch_obscure; - break; + arch = bfd_arch_obscure; +break; } bfd_default_set_arch_mach(abfd, arch, machine); - if (!(internal_f->f_flags & F_RELFLG)) - abfd->flags |= HAS_RELOC; - if ((internal_f->f_flags & F_EXEC)) - abfd->flags |= EXEC_P; - if (!(internal_f->f_flags & F_LNNO)) - abfd->flags |= HAS_LINENO; - if (!(internal_f->f_flags & F_LSYMS)) - abfd->flags |= HAS_LOCALS; - - - bfd_get_symcount(abfd) = internal_f->f_nsyms; - if (internal_f->f_nsyms) - abfd->flags |= HAS_SYMS; - - coff->sym_filepos = internal_f->f_symptr; - - /* These members communicate important constants about the symbol table - to GDB's symbol-reading code. These `constants' unfortunately vary - from coff implementation to implementation... */ -#ifndef NO_COFF_SYMBOLS - coff->local_n_btmask = N_BTMASK; - coff->local_n_btshft = N_BTSHFT; - coff->local_n_tmask = N_TMASK; - coff->local_n_tshift = N_TSHIFT; - coff->local_symesz = SYMESZ; - coff->local_auxesz = AUXESZ; - coff->local_linesz = LINESZ; -#endif - - coff->symbols = (coff_symbol_type *) NULL; - bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0; - - return abfd->xvec; - fail: - bfd_release(abfd, coff); - return (bfd_target *)NULL; -} - -static bfd_target * -DEFUN(coff_object_p,(abfd), - bfd *abfd) -{ - int nscns; - FILHDR filehdr; - AOUTHDR opthdr; - struct internal_filehdr internal_f; - struct internal_aouthdr internal_a; - - bfd_error = system_call_error; - - /* figure out how much to read */ - if (bfd_read((PTR) &filehdr, 1, FILHSZ, abfd) != FILHSZ) - return 0; - - bfd_swap_filehdr_in(abfd, &filehdr, &internal_f); - - if (BADMAG(internal_f)) { - bfd_error = wrong_format; - return 0; - } - nscns =internal_f.f_nscns; - - if (internal_f.f_opthdr) { - if (bfd_read((PTR) &opthdr, 1,AOUTSZ, abfd) != AOUTSZ) { - return 0; - } - bfd_swap_aouthdr_in(abfd, (char *)&opthdr, (char *)&internal_a); - } - - /* Seek past the opt hdr stuff */ - bfd_seek(abfd, (file_ptr) (internal_f.f_opthdr + FILHSZ), SEEK_SET); - - /* if the optional header is NULL or not the correct size then - quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) - and Intel 960 readwrite headers (I960WRMAGIC) is that the - optional header is of a different size. - - But the mips keeps extra stuff in it's opthdr, so dont check - when doing that - */ - -#if defined(M88) || defined(I960) - if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr) - return (bfd_target *)NULL; -#endif - - return coff_real_object_p(abfd, nscns, &internal_f, &internal_a); -} - - - -#ifndef NO_COFF_LINENOS - -static void -DEFUN(coff_count_linenumbers,(abfd), - bfd *abfd) -{ - unsigned int limit = bfd_get_symcount(abfd); - unsigned int i; - asymbol **p; - { - asection *s = abfd->sections->output_section; - while (s) { - BFD_ASSERT(s->lineno_count == 0); - s = s->next; - } - } - - - for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { - asymbol *q_maybe = *p; - if (bfd_asymbol_flavour(q_maybe) == bfd_target_coff_flavour) { - coff_symbol_type *q = coffsymbol(q_maybe); - if (q->lineno) { - /* - This symbol has a linenumber, increment the owning - section's linenumber count - */ - alent *l = q->lineno; - q->symbol.section->output_section->lineno_count++; - l++; - while (l->line_number) { - q->symbol.section->output_section->lineno_count++; - l++; - } - } - } - } -} - -#endif /* NO_COFF_LINENOS */ - -#ifndef NO_COFF_SYMBOLS - -/* - Takes a bfd and a symbol, returns a pointer to the coff specific area - of the symbol if there is one. - */ -static coff_symbol_type * -DEFUN(coff_symbol_from,(ignore_abfd, symbol), - bfd *ignore_abfd AND - asymbol *symbol) -{ - if (bfd_asymbol_flavour(symbol) != bfd_target_coff_flavour) - return (coff_symbol_type *)NULL; - - if (bfd_asymbol_bfd(symbol)->tdata.coff_obj_data == (coff_data_type*)NULL) - return (coff_symbol_type *)NULL; - - return (coff_symbol_type *) symbol; -} - - - -static void -DEFUN(fixup_symbol_value,(coff_symbol_ptr, syment), -coff_symbol_type *coff_symbol_ptr AND -struct internal_syment *syment) -{ - - /* Normalize the symbol flags */ - if (coff_symbol_ptr->symbol.section == &bfd_com_section) { - /* a common symbol is undefined with a value */ - syment->n_scnum = N_UNDEF; - syment->n_value = coff_symbol_ptr->symbol.value; - } - else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { - syment->n_value = coff_symbol_ptr->symbol.value; - } - else if (coff_symbol_ptr->symbol.section == & bfd_und_section) { - syment->n_scnum = N_UNDEF; - syment->n_value = 0; - } - else { - if (coff_symbol_ptr->symbol.section) { - syment->n_scnum = - coff_symbol_ptr->symbol.section->output_section->target_index; - - syment->n_value = - coff_symbol_ptr->symbol.value + - coff_symbol_ptr->symbol.section->output_offset + - coff_symbol_ptr->symbol.section->output_section->vma; - } - else { - BFD_ASSERT(0); - /* This can happen, but I don't know why yet (steve@cygnus.com) */ - syment->n_scnum = N_ABS; - syment->n_value = coff_symbol_ptr->symbol.value; - } - } -} - -/* run through all the symbols in the symbol table and work out what - their indexes into the symbol table will be when output - - Coff requires that each C_FILE symbol points to the next one in the - chain, and that the last one points to the first external symbol. We - do that here too. - -*/ -static void -DEFUN(coff_renumber_symbols,(bfd_ptr), - bfd *bfd_ptr) -{ - unsigned int symbol_count = bfd_get_symcount(bfd_ptr); - asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; - unsigned int native_index = 0; - struct internal_syment *last_file = (struct internal_syment *)NULL; - unsigned int symbol_index; - - /* COFF demands that undefined symbols come after all other symbols. - Since we don't need to impose this extra knowledge on all our client - programs, deal with that here. Sort the symbol table; just move the - undefined symbols to the end, leaving the rest alone. */ - /* @@ Do we have some condition we could test for, so we don't always - have to do this? I don't think relocatability is quite right, but - I'm not certain. [raeburn:19920508.1711EST] */ - { - asymbol **newsyms; - int i; - - newsyms = (asymbol **) bfd_alloc_by_size_t (bfd_ptr, - sizeof (asymbol *) - * (symbol_count + 1)); - bfd_ptr->outsymbols = newsyms; - for (i = 0; i < symbol_count; i++) - if (symbol_ptr_ptr[i]->section != &bfd_und_section) - *newsyms++ = symbol_ptr_ptr[i]; - for (i = 0; i < symbol_count; i++) - if (symbol_ptr_ptr[i]->section == &bfd_und_section) - *newsyms++ = symbol_ptr_ptr[i]; - *newsyms = (asymbol *) NULL; - symbol_ptr_ptr = bfd_ptr->outsymbols; - } - - for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) - { - coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); - if (coff_symbol_ptr && coff_symbol_ptr->native) { - combined_entry_type *s = coff_symbol_ptr->native; - int i; - - if (s->u.syment.n_sclass == C_FILE) - { - if (last_file != (struct internal_syment *)NULL) { - last_file->n_value = native_index; - } - last_file = &(s->u.syment); - } - else { - - /* Modify the symbol values according to their section and - type */ - - fixup_symbol_value(coff_symbol_ptr, &(s->u.syment)); - } - for (i = 0; i < s->u.syment.n_numaux + 1; i++) { - s[i].offset = native_index ++; - } - } - else { - native_index++; - } - } - obj_conv_table_size (bfd_ptr) = native_index; + return true; } +#ifdef SYMNAME_IN_DEBUG -/* - Run thorough the symbol table again, and fix it so that all pointers to - entries are changed to the entries' index in the output symbol table. - -*/ -static void -DEFUN(coff_mangle_symbols,(bfd_ptr), - bfd *bfd_ptr) +static boolean +DEFUN (symname_in_debug_hook, (abfd, sym), + bfd *abfd AND + struct internal_syment *sym) { - unsigned int symbol_count = bfd_get_symcount(bfd_ptr); - asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; - unsigned int symbol_index; - - for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) - { - coff_symbol_type *coff_symbol_ptr = - coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); - - if (coff_symbol_ptr && coff_symbol_ptr->native) { - int i; - combined_entry_type *s = coff_symbol_ptr->native; - - for (i = 0; i < s->u.syment.n_numaux ; i++) { - combined_entry_type *a = s + i + 1; - if (a->fix_tag) { - a->u.auxent.x_sym.x_tagndx.l = - a->u.auxent.x_sym.x_tagndx.p->offset; - a->fix_tag = 0; - } - if (a->fix_end) { - a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = - a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; - a->fix_end = 0; - - } - - } - } - } + return SYMNAME_IN_DEBUG (sym) ? true : false; } -static int string_size; -static void -DEFUN(coff_fix_symbol_name,(ignore_abfd, symbol, native), - bfd *ignore_abfd AND - asymbol *symbol AND - combined_entry_type *native) -{ - unsigned int name_length; - union internal_auxent *auxent; - char * name = ( char *)(symbol->name); - - if (name == (char *) NULL) { - /* coff symbols always have names, so we'll make one up */ - symbol->name = "strange"; - name = (char *)symbol->name; - } - name_length = strlen(name); - - if (native->u.syment.n_sclass == C_FILE) { - strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN); - auxent = &(native+1)->u.auxent; - -#ifdef COFF_LONG_FILENAMES - if (name_length <= FILNMLEN) { - strncpy(auxent->x_file.x_fname, name, FILNMLEN); - } - else { - auxent->x_file.x_n.x_offset = string_size + 4; - auxent->x_file.x_n.x_zeroes = 0; - string_size += name_length + 1; - } #else - strncpy(auxent->x_file.x_fname, name, FILNMLEN); - if (name_length > FILNMLEN) { - name[FILNMLEN] = '\0'; - } -#endif - } - else - { /* NOT A C_FILE SYMBOL */ - if (name_length <= SYMNMLEN) { - /* This name will fit into the symbol neatly */ - strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN); - } - else { - native->u.syment._n._n_n._n_offset = string_size + 4; - native->u.syment._n._n_n._n_zeroes = 0; - string_size += name_length + 1; - } - } -} - - - -static unsigned int -DEFUN(coff_write_symbol,(abfd, symbol, native, written), -bfd *abfd AND -asymbol *symbol AND -combined_entry_type *native AND -unsigned int written) -{ - unsigned int numaux = native->u.syment.n_numaux; - int type = native->u.syment.n_type; - int class = native->u.syment.n_sclass; - SYMENT buf; - unsigned int j; - - /* @@ bfd_debug_section isn't accessible outside this file, but we know - that C_FILE symbols belong there. So move them. */ - if (native->u.syment.n_sclass == C_FILE) - symbol->section = &bfd_debug_section; - - if (symbol->section == &bfd_abs_section) - { - native->u.syment.n_scnum = N_ABS; - } - else if (symbol->section == &bfd_debug_section) - { - native->u.syment.n_scnum = N_DEBUG; - } - else if (symbol->section == &bfd_und_section) - { - native->u.syment.n_scnum = N_UNDEF; - } - else - { - native->u.syment.n_scnum = - symbol->section->output_section->target_index; - } - - - coff_fix_symbol_name(abfd, symbol, native); - - coff_swap_sym_out(abfd, &native->u.syment, &buf); - bfd_write((PTR)& buf, 1, SYMESZ, abfd); - for (j = 0; j < native->u.syment.n_numaux; j++) - { - AUXENT buf1; - coff_swap_aux_out(abfd, - &( (native + j + 1)->u.auxent), type, class, &buf1); - bfd_write((PTR) (&buf1), 1, AUXESZ, abfd); - } - /* - Reuse somewhere in the symbol to keep the index - */ - set_index(symbol, written); - return written + 1 + numaux; -} - - -static unsigned int -DEFUN(coff_write_alien_symbol,(abfd, symbol, written), - bfd *abfd AND - asymbol *symbol AND - unsigned int written) -{ - /* - This symbol has been created by the loader, or come from a non - coff format. It has no native element to inherit, make our - own - */ - combined_entry_type *native; - combined_entry_type dummy; - native = &dummy; - native->u.syment.n_type = T_NULL; -#ifdef I960 - native->u.syment.n_flags = 0; -#endif - if (symbol->section == &bfd_und_section) - { - native->u.syment.n_scnum = N_UNDEF; - native->u.syment.n_value = symbol->value; - } - else if (symbol->section == &bfd_com_section) - { - native->u.syment.n_scnum = N_UNDEF; - native->u.syment.n_value = symbol->value; - - } - - else if (symbol->flags & BSF_DEBUGGING) { - /* - remove name so it doesn't take up any space - */ - symbol->name = ""; - } - else { - native->u.syment.n_scnum = symbol->section->output_section->target_index; - native->u.syment.n_value = symbol->value + - symbol->section->output_section->vma + - symbol->section->output_offset; -#ifdef I960 - /* Copy the any flags from the the file hdr into the symbol */ - { - coff_symbol_type *c = coff_symbol_from(abfd, symbol); - if (c != (coff_symbol_type *)NULL) { - native->u.syment.n_flags = bfd_asymbol_bfd(&c->symbol)->flags; - } - } -#endif - } - -#ifdef HASPAD1 - native->u.syment.pad1[0] = 0; - native->u.syment.pad1[0] = 0; -#endif - - native->u.syment.n_type = 0; - if (symbol->flags & BSF_LOCAL) - native->u.syment.n_sclass = C_STAT; - else - native->u.syment.n_sclass = C_EXT; - native->u.syment.n_numaux = 0; - - return coff_write_symbol(abfd, symbol, native, written); -} - -static unsigned int -DEFUN(coff_write_native_symbol,(abfd, symbol, written), -bfd *abfd AND -coff_symbol_type *symbol AND -unsigned int written) -{ - /* - Does this symbol have an ascociated line number - if so then - make it remember this symbol index. Also tag the auxent of - this symbol to point to the right place in the lineno table - */ - combined_entry_type *native = symbol->native; - - alent *lineno = symbol->lineno; - - if (lineno && !symbol->done_lineno) { - unsigned int count = 0; - lineno[count].u.offset = written; - if (native->u.syment.n_numaux) { - union internal_auxent *a = &((native+1)->u.auxent); - a->x_sym.x_fcnary.x_fcn.x_lnnoptr = - symbol->symbol.section->output_section->moving_line_filepos; - } - /* - And count and relocate all other linenumbers - */ - - count++; - while (lineno[count].line_number) { -#if 0 -/* 13 april 92. sac -I've been told this, but still need proof: -> The second bug is also in `bfd/coffcode.h'. This bug causes the linker to screw -> up the pc-relocations for all the line numbers in COFF code. This bug isn't -> only specific to A29K implementations, but affects all systems using COFF -> format binaries. Note that in COFF object files, the line number core offsets -> output by the assembler are relative to the start of each procedure, not -> to the start of the .text section. This patch relocates the line numbers -> relative to the `native->u.syment.n_value' instead of the section virtual -> address. modular!olson@cs.arizona.edu (Jon Olson) -*/ - lineno[count].u.offset += native->u.syment.n_value; +#define symname_in_debug_hook \ + (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false -#else - lineno[count].u.offset += - symbol->symbol.section->output_section->vma + - symbol->symbol.section->output_offset; #endif - count++; - } - symbol->done_lineno = true; - - symbol->symbol.section->output_section->moving_line_filepos += - count * LINESZ; - } - return coff_write_symbol(abfd, &( symbol->symbol), native,written); -} - -static void -DEFUN(coff_write_symbols,(abfd), - bfd *abfd) -{ - unsigned int i; - unsigned int limit = bfd_get_symcount(abfd); - unsigned int written = 0; - - asymbol **p; - - string_size = 0; - - - /* Seek to the right place */ - bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); - - /* Output all the symbols we have */ - - written = 0; - for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) - { - asymbol *symbol = *p; - coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol); - - if (c_symbol == (coff_symbol_type *) NULL || - c_symbol->native == (combined_entry_type *)NULL) - { - written = coff_write_alien_symbol(abfd, symbol, written); - } - else - { - written = coff_write_native_symbol(abfd, c_symbol, written); - } - - } - - bfd_get_symcount(abfd) = written; - - /* Now write out strings */ - - if (string_size != 0) - { - unsigned int size = string_size + 4; - bfd_byte buffer[4]; - - bfd_h_put_32(abfd, size, buffer); - bfd_write((PTR) buffer, 1, sizeof(buffer), abfd); - for (p = abfd->outsymbols, i = 0; - i < limit; - i++, p++) - { - asymbol *q = *p; - size_t name_length = strlen(q->name); - int maxlen; - coff_symbol_type* c_symbol = coff_symbol_from(abfd, q); - maxlen = ((c_symbol != NULL && c_symbol->native != NULL) && - (c_symbol->native->u.syment.n_sclass == C_FILE)) ? - FILNMLEN : SYMNMLEN; - - if (name_length > maxlen) { - bfd_write((PTR) (q->name), 1, name_length + 1, abfd); - } - } - } - else { - /* We would normally not write anything here, but we'll write - out 4 so that any stupid coff reader which tries to read - the string table even when there isn't one won't croak. - */ - - uint32e_type size = 4; - size = size; - bfd_write((PTR)&size, 1, sizeof(size), abfd); - - } -} /* SUBSUBSECTION @@ -1999,208 +991,6 @@ DEFUN(coff_write_relocs,(abfd), } } } -#endif /* NO_COFF_SYMBOLS */ - -#ifndef NO_COFF_LINENOS - -static void -DEFUN(coff_write_linenumbers,(abfd), - bfd *abfd) -{ - asection *s; - for (s = abfd->sections; s != (asection *) NULL; s = s->next) { - if (s->lineno_count) { - asymbol **q = abfd->outsymbols; - bfd_seek(abfd, s->line_filepos, SEEK_SET); - /* Find all the linenumbers in this section */ - while (*q) { - asymbol *p = *q; - alent *l = - BFD_SEND(bfd_asymbol_bfd(p), _get_lineno, (bfd_asymbol_bfd(p), p)); - if (l) { - /* Found a linenumber entry, output */ - struct internal_lineno out; - LINENO buff; - memset( (PTR)&out, 0, sizeof(out)); - out.l_lnno = 0; - out.l_addr.l_symndx = l->u.offset; - coff_swap_lineno_out(abfd, &out, &buff); - bfd_write((PTR) &buff, 1, LINESZ, abfd); - l++; - while (l->line_number) { - out.l_lnno = l->line_number; - out.l_addr.l_symndx = l->u.offset; - coff_swap_lineno_out(abfd, &out, &buff); - bfd_write((PTR) &buff, 1, LINESZ, abfd); - l++; - } - } - q++; - } - } - } -} - -static alent * -DEFUN(coff_get_lineno,(ignore_abfd, symbol), - bfd *ignore_abfd AND - asymbol *symbol) -{ - return coffsymbol(symbol)->lineno; -} - -#endif /* NO_COFF_LINENOS */ - -static asymbol * -coff_make_empty_symbol(abfd) -bfd *abfd; -{ - coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); - if (new == NULL) { - bfd_error = no_memory; - return (NULL); - } /* on error */ - new->symbol.section = 0; - new->native = 0; - new->lineno = (alent *) NULL; - new->done_lineno = false; - new->symbol.the_bfd = abfd; - return &new->symbol; -} - -#ifndef NO_COFF_SYMBOLS - -static asymbol * -DEFUN (coff_make_debug_symbol, (abfd, ptr, sz), - bfd *abfd AND - PTR ptr AND - unsigned long sz) -{ - coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); - if (new == NULL) { - bfd_error = no_memory; - return (NULL); - } /* on error */ - /* @@ This shouldn't be using a constant multiplier. */ - new->native = (combined_entry_type *) bfd_zalloc (abfd, sizeof (combined_entry_type) * 10); - new->symbol.section = &bfd_debug_section; - new->lineno = (alent *) NULL; - new->done_lineno = false; - new->symbol.the_bfd = abfd; - return &new->symbol; -} - -static void -DEFUN(coff_print_symbol,(ignore_abfd, filep, symbol, how), - bfd *ignore_abfd AND - PTR filep AND - asymbol *symbol AND - bfd_print_symbol_type how) -{ - FILE *file = (FILE *)filep; - switch (how) { - case bfd_print_symbol_name: - fprintf(file, "%s", symbol->name); - break; - case bfd_print_symbol_more: - fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native, - (unsigned long) coffsymbol(symbol)->lineno); - break; - case bfd_print_symbol_nm: - - { - CONST char *section_name = symbol->section->name; - bfd_print_symbol_vandf((PTR) file, symbol); - - - fprintf(file, " %-5s %s %s %s", - section_name, - coffsymbol(symbol)->native ? "n" : "g", - coffsymbol(symbol)->lineno ? "l" : " ", - symbol->name); - } - - - break; - case bfd_print_symbol_all: - /* Print out the symbols in a reasonable way */ - { - CONST char *section_name = symbol->section->name; - - - if (coffsymbol(symbol)->native) - { - unsigned int aux; - combined_entry_type *combined = coffsymbol(symbol)->native; - combined_entry_type *root = obj_raw_syments(ignore_abfd); - - fprintf(file,"[%3d]", - combined - root); - - - fprintf(file, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s", - combined->u.syment.n_scnum, - combined->u.syment.n_flags, - combined->u.syment.n_type, - combined->u.syment.n_sclass, - combined->u.syment.n_numaux, - combined->u.syment.n_value, - symbol->name - ); - for (aux = 0; aux < combined->u.syment.n_numaux; aux++) - { - fprintf(file,"\n"); - switch (combined->u.syment.n_sclass) { - case C_FILE: - fprintf(file, "File "); - break; - default: - fprintf(file, "AUX lnno %x size %x tagndx %x", - combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_lnno, - combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_size, - combined[aux+1].u.auxent.x_sym.x_tagndx.l); - break; - - } - - } - - { - struct lineno_cache_entry *l = coffsymbol(symbol)->lineno; - if (l) - { - printf("\n%s :", l->u.sym->name); - l++; - while (l->line_number) - { - printf("\n%4d : %x", - l->line_number, - l->u.offset); - l++; - - } - } - } - - - - } - - else { - bfd_print_symbol_vandf((PTR) file, symbol); - fprintf(file, " %-5s %s %s %s", - section_name, - coffsymbol(symbol)->native ? "n" : "g", - coffsymbol(symbol)->lineno ? "l" : " ", - symbol->name); - } - - } - - } -} - -#endif /* NO_COFF_SYMBOLS */ /* Set flags and magic number of a coff file from architecture and machine type. Result is true if we can represent the arch&type, false if not. */ @@ -2414,52 +1204,6 @@ DEFUN(coff_compute_section_file_positions,(abfd), obj_relocbase(abfd) = sofar; } -#ifndef NO_COFF_SYMBOLS -static asymbol * -coff_section_symbol (abfd, name) - bfd *abfd; - char *name; -{ - asection *sec = bfd_make_section_old_way (abfd, name); - asymbol *sym; - combined_entry_type *csym; - - sym = sec->symbol; - if (coff_symbol_from (abfd, sym)) - csym = coff_symbol_from (abfd, sym)->native; - else - csym = 0; - /* Make sure back-end COFF stuff is there. */ - if (csym == 0) - { - struct foo { - coff_symbol_type sym; - /* @@FIXME This shouldn't use a fixed size!! */ - combined_entry_type e[10]; - }; - struct foo *f; - f = (struct foo *) bfd_alloc_by_size_t (abfd, sizeof (*f)); - memset ((char *) f, 0, sizeof (*f)); - coff_symbol_from (abfd, sym)->native = csym = f->e; - } - csym[0].u.syment.n_sclass = C_STAT; - csym[0].u.syment.n_numaux = 1; -/* SF_SET_STATICS (sym); @@ ??? */ - if (sec) - { - csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size; - csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count; - csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count; - } - else - { - csym[1].u.auxent.x_scn.x_scnlen = 0; - csym[1].u.auxent.x_scn.x_nreloc = 0; - csym[1].u.auxent.x_scn.x_nlinno = 0; - } - return sym; -} - /* If .file, .text, .data, .bss symbols are missing, add them. */ /* @@ Should we only be adding missing symbols, or overriding the aux values for existing section symbols? */ @@ -2520,7 +1264,6 @@ coff_add_missing_symbols (abfd) BFD_ASSERT (i == nsyms); bfd_set_symtab (abfd, sympp2, nsyms); } -#endif /* NO_COFF_SYMBOLS */ /* SUPPRESS 558 */ /* SUPPRESS 529 */ @@ -2578,9 +1321,7 @@ DEFUN(coff_write_object_contents,(abfd), /* Make a pass through the symbol table to count line number entries and put them into the correct asections */ -#ifndef NO_COFF_LINENOS coff_count_linenumbers(abfd); -#endif data_base = scn_base; /* Work out the size of the reloc and linno areas */ @@ -2593,9 +1334,7 @@ DEFUN(coff_write_object_contents,(abfd), { reloc_size += current->reloc_count * RELSZ; -#ifndef NO_COFF_LINENOS lnno_size += current->lineno_count * LINESZ; -#endif data_base += SCNHSZ; } @@ -2614,9 +1353,7 @@ DEFUN(coff_write_object_contents,(abfd), if (current->lineno_count) { current->line_filepos = lineno_base; current->moving_line_filepos = lineno_base; -#ifndef NO_COFF_LINENOS lineno_base += current->lineno_count * LINESZ; -#endif } else { current->line_filepos = 0; @@ -2818,7 +1555,6 @@ DEFUN(coff_write_object_contents,(abfd), /* Now should write relocs, strings, syms */ obj_sym_filepos(abfd) = sym_base; -#ifndef NO_COFF_SYMBOLS if (bfd_get_symcount(abfd) != 0) { coff_add_missing_symbols (abfd); coff_renumber_symbols(abfd); @@ -2827,7 +1563,6 @@ DEFUN(coff_write_object_contents,(abfd), coff_write_linenumbers(abfd); coff_write_relocs(abfd); } -#endif /* NO_COFF_SYMBOLS */ if (text_sec) { internal_a.tsize = bfd_get_section_size_before_reloc(text_sec); internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; @@ -2859,41 +1594,6 @@ DEFUN(coff_write_object_contents,(abfd), return true; } -#ifndef NO_COFF_SYMBOLS - -/* -this function transforms the offsets into the symbol table into -pointers to syments. -*/ - - -static void -DEFUN(coff_pointerize_aux,(ignore_abfd, table_base, type, class, auxent), -bfd *ignore_abfd AND -combined_entry_type *table_base AND -int type AND -int class AND -combined_entry_type *auxent) -{ - /* Don't bother if this is a file or a section */ - if (class == C_STAT && type == T_NULL) return; - if (class == C_FILE) return; - - /* Otherwise patch up */ - if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) { - auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base + - auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; - auxent->fix_end = 1; - } - if (auxent->u.auxent.x_sym.x_tagndx.l != 0) { - auxent->u.auxent.x_sym.x_tagndx.p = - table_base + auxent->u.auxent.x_sym.x_tagndx.l; - auxent->fix_tag = 1; - } -} - -#endif /* NO_COFF_SYMBOLS */ - static boolean DEFUN(coff_set_section_contents,(abfd, section, location, offset, count), bfd *abfd AND @@ -2947,6 +1647,7 @@ coff_close_and_cleanup(abfd) } #endif + static PTR buy_and_read(abfd, where, seek_direction, size) bfd *abfd; @@ -2967,307 +1668,6 @@ buy_and_read(abfd, where, seek_direction, size) return (area); } /* buy_and_read() */ - -#ifndef NO_COFF_SYMBOLS - -static char * -DEFUN(build_string_table,(abfd), -bfd *abfd) -{ - char string_table_size_buffer[4]; - unsigned int string_table_size; - char *string_table; - - /* At this point we should be "seek"'d to the end of the - symbols === the symbol table size. */ - if (bfd_read((char *) string_table_size_buffer, - sizeof(string_table_size_buffer), - 1, abfd) != sizeof(string_table_size)) { - bfd_error = system_call_error; - return (NULL); - } /* on error */ - - string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer); - - if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) { - bfd_error = no_memory; - return (NULL); - } /* on mallocation error */ - if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) { - bfd_error = system_call_error; - return (NULL); - } - return string_table; -} - -/* Allocate space for the ".debug" section, and read it. - We did not read the debug section until now, because - we didn't want to go to the trouble until someone needed it. */ - -static char * -DEFUN(build_debug_section,(abfd), - bfd *abfd) -{ - char *debug_section; - long position; - - asection *sect = bfd_get_section_by_name (abfd, ".debug"); - - if (!sect) { - bfd_error = no_debug_section; - return NULL; - } - - debug_section = (PTR) bfd_alloc (abfd, - bfd_get_section_size_before_reloc (sect)); - if (debug_section == NULL) { - bfd_error = no_memory; - return NULL; - } - - /* Seek to the beginning of the `.debug' section and read it. - Save the current position first; it is needed by our caller. - Then read debug section and reset the file pointer. */ - - position = bfd_tell (abfd); - bfd_seek (abfd, sect->filepos, SEEK_SET); - if (bfd_read (debug_section, - bfd_get_section_size_before_reloc (sect), 1, abfd) - != bfd_get_section_size_before_reloc(sect)) { - bfd_error = system_call_error; - return NULL; - } - bfd_seek (abfd, position, SEEK_SET); - return debug_section; -} - - -/* Return a pointer to a malloc'd copy of 'name'. 'name' may not be - \0-terminated, but will not exceed 'maxlen' characters. The copy *will* - be \0-terminated. */ -static char * -DEFUN(copy_name,(abfd, name, maxlen), - bfd *abfd AND - char *name AND - int maxlen) -{ - int len; - char *newname; - - for (len = 0; len < maxlen; ++len) { - if (name[len] == '\0') { - break; - } - } - - if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) { - bfd_error = no_memory; - return (NULL); - } - strncpy(newname, name, len); - newname[len] = '\0'; - return newname; -} - - -/* Read a symbol table into freshly bfd_allocated memory, swap it, and - knit the symbol names into a normalized form. By normalized here I - mean that all symbols have an n_offset pointer that points to a null- - terminated string. */ - -#ifndef SYMNAME_IN_DEBUG -#define SYMNAME_IN_DEBUG(x) 0 -#endif - -static combined_entry_type * -DEFUN(get_normalized_symtab,(abfd), -bfd *abfd) -{ - combined_entry_type *internal; - combined_entry_type *internal_ptr; - combined_entry_type *symbol_ptr; - combined_entry_type *internal_end; - SYMENT *raw; - SYMENT *raw_src; - SYMENT *raw_end; - char *string_table = NULL; - char *debug_section = NULL; - unsigned long size; - - unsigned int raw_size; - if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) { - return obj_raw_syments(abfd); - } - if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) { - bfd_error = no_symbols; - return (NULL); - } - - internal = (combined_entry_type *)bfd_alloc(abfd, size); - internal_end = internal + bfd_get_symcount(abfd); - - raw_size = bfd_get_symcount(abfd) * SYMESZ; - raw = (SYMENT *)bfd_alloc(abfd,raw_size); - - if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1 - || bfd_read((PTR)raw, raw_size, 1, abfd) != raw_size) { - bfd_error = system_call_error; - return (NULL); - } - /* mark the end of the symbols */ - raw_end = raw + bfd_get_symcount(abfd); - /* - FIXME SOMEDAY. A string table size of zero is very weird, but - probably possible. If one shows up, it will probably kill us. - */ - - /* Swap all the raw entries */ - for (raw_src = raw, internal_ptr = internal; - raw_src < raw_end; - raw_src++, internal_ptr++) { - - unsigned int i; - coff_swap_sym_in(abfd, (PTR)raw_src, (PTR)&internal_ptr->u.syment); - internal_ptr->fix_tag = 0; - internal_ptr->fix_end = 0; - symbol_ptr = internal_ptr; - - for (i = 0; - i < symbol_ptr->u.syment.n_numaux; - i++) - { - internal_ptr++; - raw_src++; - - internal_ptr->fix_tag = 0; - internal_ptr->fix_end = 0; - coff_swap_aux_in(abfd, (char *)(raw_src), - symbol_ptr->u.syment.n_type, - symbol_ptr->u.syment.n_sclass, - &(internal_ptr->u.auxent)); - /* Remember that bal entries arn't pointerized */ - if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC) - { - - coff_pointerize_aux(abfd, - internal, - symbol_ptr->u.syment.n_type, - symbol_ptr->u.syment.n_sclass, - internal_ptr); - } - - } - } - - /* Free all the raw stuff */ - bfd_release(abfd, raw); - - for (internal_ptr = internal; internal_ptr < internal_end; - internal_ptr ++) - { - if (internal_ptr->u.syment.n_sclass == C_FILE) { - /* make a file symbol point to the name in the auxent, since - the text ".file" is redundant */ - if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) { - /* the filename is a long one, point into the string table */ - if (string_table == NULL) { - string_table = build_string_table(abfd); - } - - internal_ptr->u.syment._n._n_n._n_offset = - (int) (string_table - 4 + - (internal_ptr+1)->u.auxent.x_file.x_n.x_offset); - } - else { - /* ordinary short filename, put into memory anyway */ - internal_ptr->u.syment._n._n_n._n_offset = (int) - copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname, - FILNMLEN); - } - } - else { - if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) { - /* This is a "short" name. Make it long. */ - unsigned long i = 0; - char *newstring = NULL; - - /* find the length of this string without walking into memory - that isn't ours. */ - for (i = 0; i < 8; ++i) { - if (internal_ptr->u.syment._n._n_name[i] == '\0') { - break; - } /* if end of string */ - } /* possible lengths of this string. */ - - if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) { - bfd_error = no_memory; - return (NULL); - } /* on error */ - memset(newstring, 0, i); - strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1); - internal_ptr->u.syment._n._n_n._n_offset = (int) newstring; - internal_ptr->u.syment._n._n_n._n_zeroes = 0; - } - else if (!SYMNAME_IN_DEBUG(&internal_ptr->u.syment)) { - /* Long name already. Point symbol at the string in the table. */ - if (string_table == NULL) { - string_table = build_string_table(abfd); - } - internal_ptr->u.syment._n._n_n._n_offset = (int) - (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset); - } - else { - /* Long name in debug section. Very similar. */ - if (debug_section == NULL) { - debug_section = build_debug_section(abfd); - } - internal_ptr->u.syment._n._n_n._n_offset = (int) - (debug_section + internal_ptr->u.syment._n._n_n._n_offset); - } - } - internal_ptr += internal_ptr->u.syment.n_numaux; - } - - obj_raw_syments(abfd) = internal; - - return (internal); -} /* get_normalized_symtab() */ - -#endif /* NO_COFF_SYMBOLS */ - -static -struct sec * -DEFUN(section_from_bfd_index,(abfd, index), - bfd *abfd AND - int index) -{ - struct sec *answer = abfd->sections; - - if (index == N_ABS) - { - return &bfd_abs_section; - } - if (index == N_UNDEF) - { - return &bfd_und_section; - } - if(index == N_DEBUG) - { - return &bfd_debug_section; - - } - - while (answer) { - if (answer->target_index == index) - return answer; - answer = answer->next; - } - BFD_ASSERT(0); - return &bfd_und_section; /* For gcc -W and lint. Never executed. */ -} - -#ifndef NO_COFF_LINENOS - /* SUBSUBSECTION Reading Linenumbers @@ -3343,10 +1743,6 @@ asection *asect; return true; } /* coff_slurp_line_table() */ -#endif /* NO_COFF_LINENOS */ - -#ifndef NO_COFF_LINENOS - static boolean DEFUN(coff_slurp_symbol_table,(abfd), bfd *abfd) @@ -3361,7 +1757,7 @@ DEFUN(coff_slurp_symbol_table,(abfd), bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); /* Read in the symbol table */ - if ((native_symbols = get_normalized_symtab(abfd)) == NULL) { + if ((native_symbols = coff_get_normalized_symtab(abfd)) == NULL) { return (false); } /* on error */ @@ -3397,8 +1793,8 @@ DEFUN(coff_slurp_symbol_table,(abfd), We use the native name field to point to the cached field */ src->u.syment._n._n_n._n_zeroes = (int) dst; - dst->symbol.section = section_from_bfd_index(abfd, - src->u.syment.n_scnum); + dst->symbol.section = coff_section_from_bfd_index(abfd, + src->u.syment.n_scnum); dst->symbol.flags = 0; dst->done_lineno = false; @@ -3570,64 +1966,6 @@ DEFUN(coff_slurp_symbol_table,(abfd), return true; } /* coff_slurp_symbol_table() */ -static unsigned int -coff_get_symtab_upper_bound(abfd) -bfd *abfd; - { - if (!coff_slurp_symbol_table(abfd)) - return 0; - - return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *)); - } - - -static unsigned int -DEFUN(coff_get_symtab, (abfd, alocation), - bfd *abfd AND - asymbol **alocation) -{ - unsigned int counter = 0; - coff_symbol_type *symbase; - coff_symbol_type **location = (coff_symbol_type **) (alocation); - if (!coff_slurp_symbol_table(abfd)) - return 0; - - symbase = obj_symbols(abfd); - while (counter < bfd_get_symcount(abfd)) - { - /* This nasty code looks at the symbol to decide whether or - not it is descibes a constructor/destructor entry point. It - is structured this way to (hopefully) speed non matches */ -#if 0 - if (0 && symbase->symbol.name[9] == '$') - { - bfd_constructor_entry(abfd, - (asymbol **)location, - symbase->symbol.name[10] == 'I' ? - "CTOR" : "DTOR"); - } -#endif - *(location++) = symbase++; - counter++; - } - *location++ = 0; - return bfd_get_symcount(abfd); -} - -#endif /* NO_COFF_SYMBOLS */ - -static unsigned int -coff_get_reloc_upper_bound(abfd, asect) -bfd *abfd; -sec_ptr asect; - { - if (bfd_get_format(abfd) != bfd_object) { - bfd_error = invalid_operation; - return 0; - } - return (asect->reloc_count + 1) * sizeof(arelent *); - } - /* SUBSUBSECTION Reading Relocations @@ -3687,10 +2025,8 @@ DEFUN(coff_slurp_reloc_table,(abfd, asect, symbols), return true; if (asect->flags & SEC_CONSTRUCTOR) return true; -#ifndef NO_COFF_SYMBOLS if (!coff_slurp_symbol_table(abfd)) return false; -#endif native_relocs = (RELOC *) buy_and_read(abfd, asect->rel_filepos, @@ -3812,119 +2148,6 @@ asymbol **symbols) return section->reloc_count; } -#ifndef NO_COFF_SYMBOLS - -/* -provided a BFD, a section and an offset into the section, calculate and -return the name of the source file and the line nearest to the wanted -location. -*/ - -static boolean -DEFUN(coff_find_nearest_line,(abfd, - section, - ignore_symbols, - offset, - filename_ptr, - functionname_ptr, - line_ptr), - bfd *abfd AND - asection *section AND - asymbol **ignore_symbols AND - bfd_vma offset AND - CONST char **filename_ptr AND - CONST char **functionname_ptr AND - unsigned int *line_ptr) -{ - static bfd *cache_abfd; - static asection *cache_section; - static bfd_vma cache_offset; - static unsigned int cache_i; - static alent *cache_l; - - unsigned int i = 0; - coff_data_type *cof = coff_data(abfd); - /* Run through the raw syments if available */ - combined_entry_type *p; - alent *l; - unsigned int line_base = 0; - - - *filename_ptr = 0; - *functionname_ptr = 0; - *line_ptr = 0; - - /* Don't try and find line numbers in a non coff file */ - if (abfd->xvec->flavour != bfd_target_coff_flavour) - return false; - - if (cof == NULL) - return false; - - p = cof->raw_syments; - - for (i = 0; i < cof->raw_syment_count; i++) { - if (p->u.syment.n_sclass == C_FILE) { - /* File name has been moved into symbol */ - *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; - break; - } - p += 1 + p->u.syment.n_numaux; - } - /* Now wander though the raw linenumbers of the section */ - /* - If this is the same BFD as we were previously called with and this is - the same section, and the offset we want is further down then we can - prime the lookup loop - */ - if (abfd == cache_abfd && - section == cache_section && - offset >= cache_offset) { - i = cache_i; - l = cache_l; - } - else { - i = 0; - l = section->lineno; - } - - for (; i < section->lineno_count; i++) { - if (l->line_number == 0) { - /* Get the symbol this line number points at */ - coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); - *functionname_ptr = coff->symbol.name; - if (coff->native) { - combined_entry_type *s = coff->native; - s = s + 1 + s->u.syment.n_numaux; - /* - S should now point to the .bf of the function - */ - if (s->u.syment.n_numaux) { - /* - The linenumber is stored in the auxent - */ - union internal_auxent *a = &((s + 1)->u.auxent); - line_base = a->x_sym.x_misc.x_lnsz.x_lnno; - } - } - } - else { - if (l->u.offset > offset) - break; - *line_ptr = l->line_number + line_base + 1; - } - l++; - } - - cache_abfd = abfd; - cache_section = section; - cache_offset = offset; - cache_i = i; - cache_l = l; - - return true; -} - #ifdef GNU960 file_ptr coff_sym_filepos(abfd) @@ -3934,408 +2157,29 @@ bfd *abfd; } #endif -#endif /* NO_COFF_SYMBOLS */ - - -static int -DEFUN(coff_sizeof_headers,(abfd, reloc), - bfd *abfd AND - boolean reloc) -{ - size_t size; - - if (reloc == false) { - size = FILHSZ + AOUTSZ; - } - else { - size = FILHSZ; - } - - size += abfd->section_count * SCNHSZ; - return size; -} - -static bfd_vma -DEFUN(get_value,(reloc, seclet), - arelent *reloc AND - bfd_seclet_type *seclet) -{ - bfd_vma value; - asymbol *symbol = *(reloc->sym_ptr_ptr); - /* A symbol holds a pointer to a section, and an offset from the - base of the section. To relocate, we find where the section will - live in the output and add that in */ - - if (symbol->section == &bfd_und_section) - { - /* Ouch, this is an undefined symbol.. */ - bfd_error_vector.undefined_symbol(reloc, seclet); - value = symbol->value; - } - else - { - value = symbol->value + - symbol->section->output_offset + - symbol->section->output_section->vma; - } - - - /* Add the value contained in the relocation */ - value += reloc->addend; - - return value; -} - -static void -DEFUN(perform_slip,(s, slip, input_section, value), - asymbol **s AND - unsigned int slip AND - asection *input_section AND - bfd_vma value) -{ - - /* Find all symbols past this point, and make them know - what's happened */ - while (*s) - { - asymbol *p = *s; - if (p->section == input_section) - { - /* This was pointing into this section, so mangle it */ - if (p->value > value) - { - p->value -= slip; - } - } - s++; - - } -} -static int -DEFUN(movb1,(input_section, symbols, r, shrink), - asection *input_section AND - asymbol **symbols AND - arelent *r AND - unsigned int shrink) -{ - bfd_vma value = get_value(r,0); - - if (value >= 0xff00) - { - - /* Change the reloc type from 16bit, possible 8 to 8bit - possible 16 */ - r->howto = r->howto + 1; - /* The place to relc moves back by one */ - r->address -=1; - - /* This will be two bytes smaller in the long run */ - shrink +=2 ; - perform_slip(symbols, 2, input_section, r->address - shrink +1); - - - } - return shrink; -} - -static int -DEFUN(jmp1,(input_section, symbols, r, shrink), - asection *input_section AND - asymbol **symbols AND - arelent *r AND - unsigned int shrink) -{ - - - bfd_vma value = get_value(r, 0); - - bfd_vma dot = input_section->output_section->vma + - input_section->output_offset + r->address; - bfd_vma gap; - - /* See if the address we're looking at within 127 bytes of where - we are, if so then we can use a small branch rather than the - jump we were going to */ - - gap = value - (dot - shrink); - - - if (-120 < (long)gap && (long)gap < 120 ) - { - - /* Change the reloc type from 16bit, possible 8 to 8bit - possible 16 */ - r->howto = r->howto + 1; - /* The place to relc moves back by one */ - r->address -=1; - - /* This will be two bytes smaller in the long run */ - shrink +=2 ; - perform_slip(symbols, 2, input_section, r->address-shrink +1); - - - } - return shrink; -} - -static boolean -DEFUN(bfd_coff_relax_section,(abfd, i, symbols), - bfd *abfd AND - asection *i AND - asymbol **symbols) -{ - - /* Get enough memory to hold the stuff */ - bfd *input_bfd = i->owner; - asection *input_section = i; - int shrink = 0 ; - boolean new = false; - - bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd, - input_section); - arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size); - - /* Get the relocs and think about them */ - if (bfd_canonicalize_reloc(input_bfd, - input_section, - reloc_vector, - symbols)) - { - arelent **parent; - for (parent = reloc_vector; *parent; parent++) - { - arelent *r = *parent; - switch (r->howto->type) { - case R_MOVB2: - case R_JMP2: - - shrink+=2; - break; - - case R_MOVB1: - shrink = movb1(input_section, symbols, r, shrink); - new = true; - - break; - case R_JMP1: - shrink = jmp1(input_section, symbols, r, shrink); - new = true; - - break; - } - } - - } - input_section->_cooked_size -= shrink; - free((char *)reloc_vector); - return new; -} - -static bfd_byte * -DEFUN(bfd_coff_get_relocated_section_contents,(in_abfd, seclet, data), - bfd *in_abfd AND - bfd_seclet_type *seclet AND - bfd_byte *data) - -{ - /* Get enough memory to hold the stuff */ - bfd *input_bfd = seclet->u.indirect.section->owner; - asection *input_section = seclet->u.indirect.section; - bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd, - input_section); - arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size); - - /* read in the section */ - bfd_get_section_contents(input_bfd, - input_section, - data, - 0, - input_section->_raw_size); - - - if (bfd_canonicalize_reloc(input_bfd, - input_section, - reloc_vector, - seclet->u.indirect.symbols) ) - { - arelent **parent = reloc_vector; - arelent *reloc ; - - - - unsigned int dst_address = 0; - unsigned int src_address = 0; - unsigned int run; - unsigned int idx; - - /* Find how long a run we can do */ - while (dst_address < seclet->size) - { - - reloc = *parent; - if (reloc) - { - /* Note that the relaxing didn't tie up the addresses in the - relocation, so we use the original address to work out the - run of non-relocated data */ - run = reloc->address - src_address; - parent++; - - } - else - { - run = seclet->size - dst_address; - } - /* Copy the bytes */ - for (idx = 0; idx < run; idx++) - { - data[dst_address++] = data[src_address++]; - } - - /* Now do the relocation */ - - if (reloc) - { - switch (reloc->howto->type) - { - case R_JMP2: - /* Speciial relaxed type */ - { - bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma; - int gap = get_value(reloc,seclet)-dot-1; - if ((gap & ~0xff ) != 0 &&((gap & 0xff00)!= 0xff00)) abort(); - - bfd_put_8(in_abfd,gap, data+dst_address); - - switch (data[dst_address-1]) - { - - case 0x5e: - /* jsr -> bsr */ - bfd_put_8(in_abfd, 0x55, data+dst_address-1); - break; - case 0x5a: - /* jmp ->bra */ - bfd_put_8(in_abfd, 0x40, data+dst_address-1); - break; - - default: - abort(); - - } - - - - - dst_address++; - src_address+=3; - - break; - } - - - case R_MOVB2: - /* Special relaxed type, there will be a gap between where we - get stuff from and where we put stuff to now - - for a mov.b @aa:16 -> mov.b @aa:8 - opcode 0x6a 0x0y offset - -> 0x2y off - */ - if (data[dst_address-1] != 0x6a) - abort(); - switch (data[src_address] & 0xf0) - { - case 0x00: - /* Src is memory */ - data[dst_address-1] = (data[src_address] & 0xf) | 0x20; - break; - case 0x80: - /* Src is reg */ - data[dst_address-1] = (data[src_address] & 0xf) | 0x30; - break; - default: - abort(); - } - - /* the offset must fit ! after all, what was all the relaxing - about ? */ - - bfd_put_8(in_abfd, get_value(reloc, seclet), data + dst_address); - - /* Note the magic - src goes up by two bytes, but dst by only - one */ - dst_address+=1; - src_address+=3; - - break; - /* PCrel 8 bits */ - case R_PCRBYTE: - { - bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma; - int gap = get_value(reloc,seclet)-dot; - if (gap > 127 || gap < -128) - { - bfd_error_vector.reloc_value_truncated(reloc, seclet); - } - - bfd_put_8(in_abfd,gap, data+dst_address); - dst_address++; - src_address++; - - break; - } - - case R_RELBYTE: - { - unsigned int gap =get_value(reloc,seclet); - if (gap > 0xff && gap < ~0xff) - { - bfd_error_vector.reloc_value_truncated(reloc, seclet); - } - - bfd_put_8(in_abfd, gap, data+dst_address); - dst_address+=1; - src_address+=1; - - - } - break; - case R_JMP1: - /* A relword which would have like to have been a pcrel */ - case R_MOVB1: - /* A relword which would like to have been modified but - didn't make it */ - case R_RELWORD: - bfd_put_16(in_abfd, get_value(reloc,seclet), data+dst_address); - dst_address+=2; - src_address+=2; - break; -#ifdef EXTRA_CASES - EXTRA_CASES -#else - - default: - abort(); +#ifndef coff_reloc16_extra_cases +#define coff_reloc16_extra_cases \ + (void (*) PARAMS ((bfd *, bfd_seclet_type *, arelent *, bfd_byte *,\ + unsigned int *, unsigned int *))) abort #endif - } - } - } - } - free((char *)reloc_vector); - return data; - -} -#if !defined (NO_COFF_SYMBOLS) && !defined (NO_COFF_LINENOS) static CONST bfd_coff_backend_data bfd_coff_std_swap_table = { coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, coff_swap_aux_out, coff_swap_sym_out, coff_swap_lineno_out, coff_swap_reloc_out, coff_swap_filehdr_out, coff_swap_aouthdr_out, coff_swap_scnhdr_out, -}; + FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, LINESZ, +#ifdef COFF_LONG_FILENAMES + true, +#else + false, #endif + coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, + coff_bad_format_hook, coff_set_arch_mach_hook, coff_mkobject_hook, + styp_to_sec_flags, coff_make_section_hook, coff_set_alignment_hook, + coff_slurp_symbol_table, symname_in_debug_hook, coff_reloc16_extra_cases +}; #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal diff --git a/bfd/coffgen.c b/bfd/coffgen.c new file mode 100644 index 0000000..4bd0161 --- /dev/null +++ b/bfd/coffgen.c @@ -0,0 +1,1501 @@ +/* Support for the generic parts of COFF, for BFD. + Copyright 1990, 1991, 1992 Free Software Foundation, Inc. + Written by Cygnus Support. + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* Most of this hacked by Steve Chamberlain, sac@cygnus.com. + Split out of coffcode.h by Ian Taylor, ian@cygnus.com. */ + +/* This file contains COFF code that is not dependent on any + particular COFF target. There is only one version of this file in + libbfd.a, so no target specific code may be put in here. Or, to + put it another way, + + ********** DO NOT PUT TARGET SPECIFIC CODE IN THIS FILE ********** + + If you need to add some target specific behaviour, add a new hook + function to bfd_coff_backend_data. + + Some of these functions are also called by the ECOFF routines. + Those functions may not use any COFF specific information, such as + coff_data (abfd). */ + +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" +#include "coff/internal.h" +#include "libcoff.h" + +static asection bfd_debug_section = { "*DEBUG*" }; + +/* Take a section header read from a coff file (in HOST byte order), + and make a BFD "section" out of it. This is used by ECOFF. */ +static boolean +DEFUN(make_a_section_from_file,(abfd, hdr, target_index), + bfd *abfd AND + struct internal_scnhdr *hdr AND + unsigned int target_index) +{ + asection *return_section; + char *name; + + /* Assorted wastage to null-terminate the name, thanks AT&T! */ + name = bfd_alloc(abfd, sizeof (hdr->s_name)+1); + if (name == NULL) { + bfd_error = no_memory; + return false; + } + strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); + name[sizeof (hdr->s_name)] = 0; + + return_section = bfd_make_section(abfd, name); + if (return_section == NULL) + return_section = bfd_coff_make_section_hook (abfd, name); + if (return_section == NULL) + return false; + + /* s_paddr is presumed to be = to s_vaddr */ + + return_section->vma = hdr->s_vaddr; + return_section->_raw_size = hdr->s_size; + return_section->filepos = hdr->s_scnptr; + return_section->rel_filepos = hdr->s_relptr; + return_section->reloc_count = hdr->s_nreloc; + + bfd_coff_set_alignment_hook (abfd, return_section, hdr); + + return_section->line_filepos = hdr->s_lnnoptr; + + return_section->lineno_count = hdr->s_nlnno; + return_section->userdata = NULL; + return_section->next = (asection *) NULL; + return_section->flags = bfd_coff_styp_to_sec_flags_hook (abfd, hdr); + + return_section->target_index = target_index; + + if (hdr->s_nreloc != 0) + return_section->flags |= SEC_RELOC; + /* FIXME: should this check 'hdr->s_size > 0' */ + if (hdr->s_scnptr != 0) + return_section->flags |= SEC_HAS_CONTENTS; + return true; +} + +/* Read in a COFF object and make it into a BFD. This is used by + ECOFF as well. */ + +static +bfd_target * +DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a), + bfd *abfd AND + unsigned nscns AND + struct internal_filehdr *internal_f AND + struct internal_aouthdr *internal_a) +{ + PTR tdata; + size_t readsize; /* length of file_info */ + unsigned int scnhsz; + char *external_sections; + + /* Build a play area */ + tdata = bfd_coff_mkobject_hook (abfd, (PTR) internal_f); + if (tdata == NULL) + return 0; + + scnhsz = bfd_coff_scnhsz (abfd); + readsize = nscns * scnhsz; + external_sections = (char *)bfd_alloc(abfd, readsize); + + if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) { + goto fail; + } + + /* Now copy data as required; construct all asections etc */ + if (nscns != 0) { + unsigned int i; + for (i = 0; i < nscns; i++) { + struct internal_scnhdr tmp; + bfd_coff_swap_scnhdr_in(abfd, (PTR) (external_sections + i * scnhsz), + (PTR) &tmp); + make_a_section_from_file(abfd,&tmp, i+1); + } + } + +/* make_abs_section(abfd);*/ + + if (bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f) == false) + goto fail; + + if (!(internal_f->f_flags & F_RELFLG)) + abfd->flags |= HAS_RELOC; + if ((internal_f->f_flags & F_EXEC)) + abfd->flags |= EXEC_P; + if (!(internal_f->f_flags & F_LNNO)) + abfd->flags |= HAS_LINENO; + if (!(internal_f->f_flags & F_LSYMS)) + abfd->flags |= HAS_LOCALS; + + + bfd_get_symcount(abfd) = internal_f->f_nsyms; + if (internal_f->f_nsyms) + abfd->flags |= HAS_SYMS; + + bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0; + + return abfd->xvec; + fail: + bfd_release(abfd, tdata); + return (bfd_target *)NULL; +} + +/* Turn a COFF file into a BFD, but fail with wrong_format if it is + not a COFF file. This is also used by ECOFF. */ + +bfd_target * +DEFUN(coff_object_p,(abfd), + bfd *abfd) +{ + unsigned int filhsz; + unsigned int aoutsz; + int nscns; + PTR filehdr; + struct internal_filehdr internal_f; + struct internal_aouthdr internal_a; + + bfd_error = system_call_error; + + /* figure out how much to read */ + filhsz = bfd_coff_filhsz (abfd); + aoutsz = bfd_coff_aoutsz (abfd); + + filehdr = bfd_alloc (abfd, filhsz); + if (filehdr == NULL) + return 0; + if (bfd_read(filehdr, 1, filhsz, abfd) != filhsz) + return 0; + bfd_coff_swap_filehdr_in(abfd, filehdr, &internal_f); + bfd_release (abfd, filehdr); + + if (bfd_coff_bad_format_hook (abfd, &internal_f) == false) { + bfd_error = wrong_format; + return 0; + } + nscns =internal_f.f_nscns; + + if (internal_f.f_opthdr) { + PTR opthdr; + + opthdr = bfd_alloc (abfd, aoutsz); + if (opthdr == NULL) + return 0;; + if (bfd_read(opthdr, 1,aoutsz, abfd) != aoutsz) { + return 0; + } + bfd_coff_swap_aouthdr_in(abfd, opthdr, (PTR)&internal_a); + } + + /* Seek past the opt hdr stuff */ + bfd_seek(abfd, (file_ptr) (internal_f.f_opthdr + filhsz), SEEK_SET); + + return coff_real_object_p(abfd, nscns, &internal_f, &internal_a); +} + +/* Get the BFD section from a COFF symbol section number. */ + +struct sec * +DEFUN(coff_section_from_bfd_index,(abfd, index), + bfd *abfd AND + int index) +{ + struct sec *answer = abfd->sections; + + if (index == N_ABS) + { + return &bfd_abs_section; + } + if (index == N_UNDEF) + { + return &bfd_und_section; + } + if(index == N_DEBUG) + { + return &bfd_debug_section; + + } + + while (answer) { + if (answer->target_index == index) + return answer; + answer = answer->next; + } + BFD_ASSERT(0); + return &bfd_und_section; /* For gcc -W and lint. Never executed. */ +} + +/* Get the upper bound of a COFF symbol table. */ + +unsigned int +coff_get_symtab_upper_bound(abfd) +bfd *abfd; +{ + if (!bfd_coff_slurp_symbol_table(abfd)) + return 0; + + return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *)); +} + + +/* Canonicalize a COFF symbol table. */ + +unsigned int +DEFUN(coff_get_symtab, (abfd, alocation), + bfd *abfd AND + asymbol **alocation) +{ + unsigned int counter = 0; + coff_symbol_type *symbase; + coff_symbol_type **location = (coff_symbol_type **) (alocation); + if (!bfd_coff_slurp_symbol_table(abfd)) + return 0; + + symbase = obj_symbols(abfd); + while (counter < bfd_get_symcount(abfd)) + { + /* This nasty code looks at the symbol to decide whether or + not it is descibes a constructor/destructor entry point. It + is structured this way to (hopefully) speed non matches */ +#if 0 + if (0 && symbase->symbol.name[9] == '$') + { + bfd_constructor_entry(abfd, + (asymbol **)location, + symbase->symbol.name[10] == 'I' ? + "CTOR" : "DTOR"); + } +#endif + *(location++) = symbase++; + counter++; + } + *location++ = 0; + return bfd_get_symcount(abfd); +} + +/* Set lineno_count for the output sections of a COFF file. */ + +void +DEFUN(coff_count_linenumbers,(abfd), + bfd *abfd) +{ + unsigned int limit = bfd_get_symcount(abfd); + unsigned int i; + asymbol **p; + { + asection *s = abfd->sections->output_section; + while (s) { + BFD_ASSERT(s->lineno_count == 0); + s = s->next; + } + } + + + for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { + asymbol *q_maybe = *p; + if (bfd_asymbol_flavour(q_maybe) == bfd_target_coff_flavour) { + coff_symbol_type *q = coffsymbol(q_maybe); + if (q->lineno) { + /* + This symbol has a linenumber, increment the owning + section's linenumber count + */ + alent *l = q->lineno; + q->symbol.section->output_section->lineno_count++; + l++; + while (l->line_number) { + q->symbol.section->output_section->lineno_count++; + l++; + } + } + } + } +} + +/* Takes a bfd and a symbol, returns a pointer to the coff specific + area of the symbol if there is one. */ + +coff_symbol_type * +DEFUN(coff_symbol_from,(ignore_abfd, symbol), + bfd *ignore_abfd AND + asymbol *symbol) +{ + if (bfd_asymbol_flavour(symbol) != bfd_target_coff_flavour) + return (coff_symbol_type *)NULL; + + if (bfd_asymbol_bfd(symbol)->tdata.coff_obj_data == (coff_data_type*)NULL) + return (coff_symbol_type *)NULL; + + return (coff_symbol_type *) symbol; +} + +static void +DEFUN(fixup_symbol_value,(coff_symbol_ptr, syment), +coff_symbol_type *coff_symbol_ptr AND +struct internal_syment *syment) +{ + + /* Normalize the symbol flags */ + if (coff_symbol_ptr->symbol.section == &bfd_com_section) { + /* a common symbol is undefined with a value */ + syment->n_scnum = N_UNDEF; + syment->n_value = coff_symbol_ptr->symbol.value; + } + else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { + syment->n_value = coff_symbol_ptr->symbol.value; + } + else if (coff_symbol_ptr->symbol.section == & bfd_und_section) { + syment->n_scnum = N_UNDEF; + syment->n_value = 0; + } + else { + if (coff_symbol_ptr->symbol.section) { + syment->n_scnum = + coff_symbol_ptr->symbol.section->output_section->target_index; + + syment->n_value = + coff_symbol_ptr->symbol.value + + coff_symbol_ptr->symbol.section->output_offset + + coff_symbol_ptr->symbol.section->output_section->vma; + } + else { + BFD_ASSERT(0); + /* This can happen, but I don't know why yet (steve@cygnus.com) */ + syment->n_scnum = N_ABS; + syment->n_value = coff_symbol_ptr->symbol.value; + } + } +} + +/* run through all the symbols in the symbol table and work out what + their indexes into the symbol table will be when output + + Coff requires that each C_FILE symbol points to the next one in the + chain, and that the last one points to the first external symbol. We + do that here too. + +*/ +void +DEFUN(coff_renumber_symbols,(bfd_ptr), + bfd *bfd_ptr) +{ + unsigned int symbol_count = bfd_get_symcount(bfd_ptr); + asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; + unsigned int native_index = 0; + struct internal_syment *last_file = (struct internal_syment *)NULL; + unsigned int symbol_index; + + /* COFF demands that undefined symbols come after all other symbols. + Since we don't need to impose this extra knowledge on all our client + programs, deal with that here. Sort the symbol table; just move the + undefined symbols to the end, leaving the rest alone. */ + /* @@ Do we have some condition we could test for, so we don't always + have to do this? I don't think relocatability is quite right, but + I'm not certain. [raeburn:19920508.1711EST] */ + { + asymbol **newsyms; + int i; + + newsyms = (asymbol **) bfd_alloc_by_size_t (bfd_ptr, + sizeof (asymbol *) + * (symbol_count + 1)); + bfd_ptr->outsymbols = newsyms; + for (i = 0; i < symbol_count; i++) + if (symbol_ptr_ptr[i]->section != &bfd_und_section) + *newsyms++ = symbol_ptr_ptr[i]; + for (i = 0; i < symbol_count; i++) + if (symbol_ptr_ptr[i]->section == &bfd_und_section) + *newsyms++ = symbol_ptr_ptr[i]; + *newsyms = (asymbol *) NULL; + symbol_ptr_ptr = bfd_ptr->outsymbols; + } + + for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) + { + coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); + if (coff_symbol_ptr && coff_symbol_ptr->native) { + combined_entry_type *s = coff_symbol_ptr->native; + int i; + + if (s->u.syment.n_sclass == C_FILE) + { + if (last_file != (struct internal_syment *)NULL) { + last_file->n_value = native_index; + } + last_file = &(s->u.syment); + } + else { + + /* Modify the symbol values according to their section and + type */ + + fixup_symbol_value(coff_symbol_ptr, &(s->u.syment)); + } + for (i = 0; i < s->u.syment.n_numaux + 1; i++) { + s[i].offset = native_index ++; + } + } + else { + native_index++; + } + } + obj_conv_table_size (bfd_ptr) = native_index; +} + +/* + Run thorough the symbol table again, and fix it so that all pointers to + entries are changed to the entries' index in the output symbol table. + +*/ +void +DEFUN(coff_mangle_symbols,(bfd_ptr), + bfd *bfd_ptr) +{ + unsigned int symbol_count = bfd_get_symcount(bfd_ptr); + asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; + unsigned int symbol_index; + + for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) + { + coff_symbol_type *coff_symbol_ptr = + coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); + + if (coff_symbol_ptr && coff_symbol_ptr->native) { + int i; + combined_entry_type *s = coff_symbol_ptr->native; + + for (i = 0; i < s->u.syment.n_numaux ; i++) { + combined_entry_type *a = s + i + 1; + if (a->fix_tag) { + a->u.auxent.x_sym.x_tagndx.l = + a->u.auxent.x_sym.x_tagndx.p->offset; + a->fix_tag = 0; + } + if (a->fix_end) { + a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = + a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; + a->fix_end = 0; + + } + + } + } + } +} + +static int string_size; + +static void +DEFUN(coff_fix_symbol_name,(abfd, symbol, native), + bfd *abfd AND + asymbol *symbol AND + combined_entry_type *native) +{ + unsigned int name_length; + union internal_auxent *auxent; + char * name = ( char *)(symbol->name); + + if (name == (char *) NULL) { + /* coff symbols always have names, so we'll make one up */ + symbol->name = "strange"; + name = (char *)symbol->name; + } + name_length = strlen(name); + + if (native->u.syment.n_sclass == C_FILE) { + strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN); + auxent = &(native+1)->u.auxent; + + if (bfd_coff_long_filenames (abfd)) { + if (name_length <= FILNMLEN) { + strncpy(auxent->x_file.x_fname, name, FILNMLEN); + } + else { + auxent->x_file.x_n.x_offset = string_size + 4; + auxent->x_file.x_n.x_zeroes = 0; + string_size += name_length + 1; + } + } + else { + strncpy(auxent->x_file.x_fname, name, FILNMLEN); + if (name_length > FILNMLEN) { + name[FILNMLEN] = '\0'; + } + } + } + else + { /* NOT A C_FILE SYMBOL */ + if (name_length <= SYMNMLEN) { + /* This name will fit into the symbol neatly */ + strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN); + } + else { + native->u.syment._n._n_n._n_offset = string_size + 4; + native->u.syment._n._n_n._n_zeroes = 0; + string_size += name_length + 1; + } + } +} + +#define set_index(symbol, idx) ((symbol)->udata =(PTR) (idx)) + +static unsigned int +DEFUN(coff_write_symbol,(abfd, symbol, native, written), +bfd *abfd AND +asymbol *symbol AND +combined_entry_type *native AND +unsigned int written) +{ + unsigned int numaux = native->u.syment.n_numaux; + int type = native->u.syment.n_type; + int class = native->u.syment.n_sclass; + PTR buf; + bfd_size_type symesz; + + /* @@ bfd_debug_section isn't accessible outside this file, but we know + that C_FILE symbols belong there. So move them. */ + if (native->u.syment.n_sclass == C_FILE) + symbol->section = &bfd_debug_section; + + if (symbol->section == &bfd_abs_section) + { + native->u.syment.n_scnum = N_ABS; + } + else if (symbol->section == &bfd_debug_section) + { + native->u.syment.n_scnum = N_DEBUG; + } + else if (symbol->section == &bfd_und_section) + { + native->u.syment.n_scnum = N_UNDEF; + } + else + { + native->u.syment.n_scnum = + symbol->section->output_section->target_index; + } + + + coff_fix_symbol_name(abfd, symbol, native); + + symesz = bfd_coff_symesz (abfd); + buf = bfd_alloc (abfd, symesz); + bfd_coff_swap_sym_out(abfd, &native->u.syment, buf); + bfd_write(buf, 1, symesz, abfd); + bfd_release (abfd, buf); + + if (native->u.syment.n_numaux > 0) + { + bfd_size_type auxesz; + unsigned int j; + + auxesz = bfd_coff_auxesz (abfd); + buf = bfd_alloc (abfd, auxesz); + for (j = 0; j < native->u.syment.n_numaux; j++) + { + bfd_coff_swap_aux_out(abfd, + &((native + j + 1)->u.auxent), + type, + class, + buf); + bfd_write(buf, 1, auxesz, abfd); + } + bfd_release (abfd, buf); + } + /* + Reuse somewhere in the symbol to keep the index + */ + set_index(symbol, written); + return written + 1 + numaux; +} + + +static unsigned int +DEFUN(coff_write_alien_symbol,(abfd, symbol, written), + bfd *abfd AND + asymbol *symbol AND + unsigned int written) +{ + /* + This symbol has been created by the loader, or come from a non + coff format. It has no native element to inherit, make our + own + */ + combined_entry_type *native; + combined_entry_type dummy; + native = &dummy; + native->u.syment.n_type = T_NULL; + native->u.syment.n_flags = 0; + if (symbol->section == &bfd_und_section) + { + native->u.syment.n_scnum = N_UNDEF; + native->u.syment.n_value = symbol->value; + } + else if (symbol->section == &bfd_com_section) + { + native->u.syment.n_scnum = N_UNDEF; + native->u.syment.n_value = symbol->value; + + } + + else if (symbol->flags & BSF_DEBUGGING) { + /* + remove name so it doesn't take up any space + */ + symbol->name = ""; + } + else { + native->u.syment.n_scnum = symbol->section->output_section->target_index; + native->u.syment.n_value = symbol->value + + symbol->section->output_section->vma + + symbol->section->output_offset; + /* Copy the any flags from the the file hdr into the symbol */ + { + coff_symbol_type *c = coff_symbol_from(abfd, symbol); + if (c != (coff_symbol_type *)NULL) { + native->u.syment.n_flags = bfd_asymbol_bfd(&c->symbol)->flags; + } + } + } + + native->u.syment.n_type = 0; + if (symbol->flags & BSF_LOCAL) + native->u.syment.n_sclass = C_STAT; + else + native->u.syment.n_sclass = C_EXT; + native->u.syment.n_numaux = 0; + + return coff_write_symbol(abfd, symbol, native, written); +} + +static unsigned int +DEFUN(coff_write_native_symbol,(abfd, symbol, written), +bfd *abfd AND +coff_symbol_type *symbol AND +unsigned int written) +{ + /* + Does this symbol have an ascociated line number - if so then + make it remember this symbol index. Also tag the auxent of + this symbol to point to the right place in the lineno table + */ + combined_entry_type *native = symbol->native; + + alent *lineno = symbol->lineno; + + if (lineno && !symbol->done_lineno) { + unsigned int count = 0; + lineno[count].u.offset = written; + if (native->u.syment.n_numaux) { + union internal_auxent *a = &((native+1)->u.auxent); + + a->x_sym.x_fcnary.x_fcn.x_lnnoptr = + symbol->symbol.section->output_section->moving_line_filepos; + } + /* + And count and relocate all other linenumbers + */ + + count++; + while (lineno[count].line_number) { +#if 0 +/* 13 april 92. sac +I've been told this, but still need proof: +> The second bug is also in `bfd/coffcode.h'. This bug causes the linker to screw +> up the pc-relocations for all the line numbers in COFF code. This bug isn't +> only specific to A29K implementations, but affects all systems using COFF +> format binaries. Note that in COFF object files, the line number core offsets +> output by the assembler are relative to the start of each procedure, not +> to the start of the .text section. This patch relocates the line numbers +> relative to the `native->u.syment.n_value' instead of the section virtual +> address. modular!olson@cs.arizona.edu (Jon Olson) +*/ + lineno[count].u.offset += native->u.syment.n_value; + +#else + lineno[count].u.offset += + symbol->symbol.section->output_section->vma + + symbol->symbol.section->output_offset; +#endif + count++; + } + symbol->done_lineno = true; + + symbol->symbol.section->output_section->moving_line_filepos += + count * bfd_coff_linesz (abfd); + } + return coff_write_symbol(abfd, &( symbol->symbol), native,written); +} + +void +DEFUN(coff_write_symbols,(abfd), + bfd *abfd) +{ + unsigned int i; + unsigned int limit = bfd_get_symcount(abfd); + unsigned int written = 0; + + asymbol **p; + + string_size = 0; + + + /* Seek to the right place */ + bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); + + /* Output all the symbols we have */ + + written = 0; + for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) + { + asymbol *symbol = *p; + coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol); + + if (c_symbol == (coff_symbol_type *) NULL || + c_symbol->native == (combined_entry_type *)NULL) + { + written = coff_write_alien_symbol(abfd, symbol, written); + } + else + { + written = coff_write_native_symbol(abfd, c_symbol, written); + } + + } + + bfd_get_symcount(abfd) = written; + + /* Now write out strings */ + + if (string_size != 0) + { + unsigned int size = string_size + 4; + bfd_byte buffer[4]; + + bfd_h_put_32(abfd, size, buffer); + bfd_write((PTR) buffer, 1, sizeof(buffer), abfd); + for (p = abfd->outsymbols, i = 0; + i < limit; + i++, p++) + { + asymbol *q = *p; + size_t name_length = strlen(q->name); + int maxlen; + coff_symbol_type* c_symbol = coff_symbol_from(abfd, q); + maxlen = ((c_symbol != NULL && c_symbol->native != NULL) && + (c_symbol->native->u.syment.n_sclass == C_FILE)) ? + FILNMLEN : SYMNMLEN; + + if (name_length > maxlen) { + bfd_write((PTR) (q->name), 1, name_length + 1, abfd); + } + } + } + else { + /* We would normally not write anything here, but we'll write + out 4 so that any stupid coff reader which tries to read + the string table even when there isn't one won't croak. + */ + + uint32e_type size = 4; + size = size; + bfd_write((PTR)&size, 1, sizeof(size), abfd); + + } +} + +void +DEFUN(coff_write_linenumbers,(abfd), + bfd *abfd) +{ + asection *s; + bfd_size_type linesz; + PTR buff; + + linesz = bfd_coff_linesz (abfd); + buff = bfd_alloc (abfd, linesz); + for (s = abfd->sections; s != (asection *) NULL; s = s->next) { + if (s->lineno_count) { + asymbol **q = abfd->outsymbols; + bfd_seek(abfd, s->line_filepos, SEEK_SET); + /* Find all the linenumbers in this section */ + while (*q) { + asymbol *p = *q; + alent *l = + BFD_SEND(bfd_asymbol_bfd(p), _get_lineno, (bfd_asymbol_bfd(p), p)); + if (l) { + /* Found a linenumber entry, output */ + struct internal_lineno out; + memset( (PTR)&out, 0, sizeof(out)); + out.l_lnno = 0; + out.l_addr.l_symndx = l->u.offset; + bfd_coff_swap_lineno_out(abfd, &out, buff); + bfd_write(buff, 1, linesz, abfd); + l++; + while (l->line_number) { + out.l_lnno = l->line_number; + out.l_addr.l_symndx = l->u.offset; + bfd_coff_swap_lineno_out(abfd, &out, buff); + bfd_write(buff, 1, linesz, abfd); + l++; + } + } + q++; + } + } + } + bfd_release (abfd, buff); +} + +alent * +DEFUN(coff_get_lineno,(ignore_abfd, symbol), + bfd *ignore_abfd AND + asymbol *symbol) +{ + return coffsymbol(symbol)->lineno; +} + +asymbol * +coff_section_symbol (abfd, name) + bfd *abfd; + char *name; +{ + asection *sec = bfd_make_section_old_way (abfd, name); + asymbol *sym; + combined_entry_type *csym; + + sym = sec->symbol; + if (coff_symbol_from (abfd, sym)) + csym = coff_symbol_from (abfd, sym)->native; + else + csym = 0; + /* Make sure back-end COFF stuff is there. */ + if (csym == 0) + { + struct foo { + coff_symbol_type sym; + /* @@FIXME This shouldn't use a fixed size!! */ + combined_entry_type e[10]; + }; + struct foo *f; + f = (struct foo *) bfd_alloc_by_size_t (abfd, sizeof (*f)); + memset ((char *) f, 0, sizeof (*f)); + coff_symbol_from (abfd, sym)->native = csym = f->e; + } + csym[0].u.syment.n_sclass = C_STAT; + csym[0].u.syment.n_numaux = 1; +/* SF_SET_STATICS (sym); @@ ??? */ + if (sec) + { + csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size; + csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count; + csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count; + } + else + { + csym[1].u.auxent.x_scn.x_scnlen = 0; + csym[1].u.auxent.x_scn.x_nreloc = 0; + csym[1].u.auxent.x_scn.x_nlinno = 0; + } + return sym; +} + +/* This function transforms the offsets into the symbol table into + pointers to syments. */ + +static void +DEFUN(coff_pointerize_aux,(abfd, table_base, type, class, auxent), +bfd *abfd AND +combined_entry_type *table_base AND +int type AND +int class AND +combined_entry_type *auxent) +{ + /* Don't bother if this is a file or a section */ + if (class == C_STAT && type == T_NULL) return; + if (class == C_FILE) return; + + /* Otherwise patch up */ +#define N_TMASK coff_data (abfd)->local_n_tmask +#define N_BTSHFT coff_data (abfd)->local_n_btshft + if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) { + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base + + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; + auxent->fix_end = 1; + } + /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can + generate one, so we must be careful to ignore it. */ + if (auxent->u.auxent.x_sym.x_tagndx.l > 0) { + auxent->u.auxent.x_sym.x_tagndx.p = + table_base + auxent->u.auxent.x_sym.x_tagndx.l; + auxent->fix_tag = 1; + } +} + +static char * +DEFUN(build_string_table,(abfd), +bfd *abfd) +{ + char string_table_size_buffer[4]; + unsigned int string_table_size; + char *string_table; + + /* At this point we should be "seek"'d to the end of the + symbols === the symbol table size. */ + if (bfd_read((char *) string_table_size_buffer, + sizeof(string_table_size_buffer), + 1, abfd) != sizeof(string_table_size)) { + bfd_error = system_call_error; + return (NULL); + } /* on error */ + + string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer); + + if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) { + bfd_error = no_memory; + return (NULL); + } /* on mallocation error */ + if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) { + bfd_error = system_call_error; + return (NULL); + } + return string_table; +} + +/* Allocate space for the ".debug" section, and read it. + We did not read the debug section until now, because + we didn't want to go to the trouble until someone needed it. */ + +static char * +DEFUN(build_debug_section,(abfd), + bfd *abfd) +{ + char *debug_section; + long position; + + asection *sect = bfd_get_section_by_name (abfd, ".debug"); + + if (!sect) { + bfd_error = no_debug_section; + return NULL; + } + + debug_section = (PTR) bfd_alloc (abfd, + bfd_get_section_size_before_reloc (sect)); + if (debug_section == NULL) { + bfd_error = no_memory; + return NULL; + } + + /* Seek to the beginning of the `.debug' section and read it. + Save the current position first; it is needed by our caller. + Then read debug section and reset the file pointer. */ + + position = bfd_tell (abfd); + bfd_seek (abfd, sect->filepos, SEEK_SET); + if (bfd_read (debug_section, + bfd_get_section_size_before_reloc (sect), 1, abfd) + != bfd_get_section_size_before_reloc(sect)) { + bfd_error = system_call_error; + return NULL; + } + bfd_seek (abfd, position, SEEK_SET); + return debug_section; +} + + +/* Return a pointer to a malloc'd copy of 'name'. 'name' may not be + \0-terminated, but will not exceed 'maxlen' characters. The copy *will* + be \0-terminated. */ +static char * +DEFUN(copy_name,(abfd, name, maxlen), + bfd *abfd AND + char *name AND + int maxlen) +{ + int len; + char *newname; + + for (len = 0; len < maxlen; ++len) { + if (name[len] == '\0') { + break; + } + } + + if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) { + bfd_error = no_memory; + return (NULL); + } + strncpy(newname, name, len); + newname[len] = '\0'; + return newname; +} + +/* Read a symbol table into freshly bfd_allocated memory, swap it, and + knit the symbol names into a normalized form. By normalized here I + mean that all symbols have an n_offset pointer that points to a null- + terminated string. */ + +combined_entry_type * +DEFUN(coff_get_normalized_symtab,(abfd), +bfd *abfd) +{ + combined_entry_type *internal; + combined_entry_type *internal_ptr; + combined_entry_type *symbol_ptr; + combined_entry_type *internal_end; + bfd_size_type symesz; + PTR raw; + char *raw_src; + char *raw_end; + char *string_table = NULL; + char *debug_section = NULL; + unsigned long size; + + unsigned int raw_size; + if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) { + return obj_raw_syments(abfd); + } + if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) { + bfd_error = no_symbols; + return (NULL); + } + + internal = (combined_entry_type *)bfd_alloc(abfd, size); + internal_end = internal + bfd_get_symcount(abfd); + + symesz = bfd_coff_symesz (abfd); + raw_size = bfd_get_symcount(abfd) * symesz; + raw = bfd_alloc(abfd,raw_size); + + if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1 + || bfd_read(raw, raw_size, 1, abfd) != raw_size) { + bfd_error = system_call_error; + return (NULL); + } + /* mark the end of the symbols */ + raw_end = (char *) raw + bfd_get_symcount(abfd) * symesz; + /* + FIXME SOMEDAY. A string table size of zero is very weird, but + probably possible. If one shows up, it will probably kill us. + */ + + /* Swap all the raw entries */ + for (raw_src = (char *) raw, internal_ptr = internal; + raw_src < raw_end; + raw_src += symesz, internal_ptr++) { + + unsigned int i; + bfd_coff_swap_sym_in(abfd, (PTR)raw_src, (PTR)&internal_ptr->u.syment); + internal_ptr->fix_tag = 0; + internal_ptr->fix_end = 0; + symbol_ptr = internal_ptr; + + for (i = 0; + i < symbol_ptr->u.syment.n_numaux; + i++) + { + internal_ptr++; + raw_src += symesz; + + internal_ptr->fix_tag = 0; + internal_ptr->fix_end = 0; + bfd_coff_swap_aux_in(abfd, (PTR) raw_src, + symbol_ptr->u.syment.n_type, + symbol_ptr->u.syment.n_sclass, + &(internal_ptr->u.auxent)); + /* Remember that bal entries arn't pointerized */ + if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC) + { + + coff_pointerize_aux(abfd, + internal, + symbol_ptr->u.syment.n_type, + symbol_ptr->u.syment.n_sclass, + internal_ptr); + } + + } + } + + /* Free all the raw stuff */ + bfd_release(abfd, raw); + + for (internal_ptr = internal; internal_ptr < internal_end; + internal_ptr ++) + { + if (internal_ptr->u.syment.n_sclass == C_FILE) { + /* make a file symbol point to the name in the auxent, since + the text ".file" is redundant */ + if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) { + /* the filename is a long one, point into the string table */ + if (string_table == NULL) { + string_table = build_string_table(abfd); + } + + internal_ptr->u.syment._n._n_n._n_offset = + (int) (string_table - 4 + + (internal_ptr+1)->u.auxent.x_file.x_n.x_offset); + } + else { + /* ordinary short filename, put into memory anyway */ + internal_ptr->u.syment._n._n_n._n_offset = (int) + copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname, + FILNMLEN); + } + } + else { + if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) { + /* This is a "short" name. Make it long. */ + unsigned long i = 0; + char *newstring = NULL; + + /* find the length of this string without walking into memory + that isn't ours. */ + for (i = 0; i < 8; ++i) { + if (internal_ptr->u.syment._n._n_name[i] == '\0') { + break; + } /* if end of string */ + } /* possible lengths of this string. */ + + if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) { + bfd_error = no_memory; + return (NULL); + } /* on error */ + memset(newstring, 0, i); + strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1); + internal_ptr->u.syment._n._n_n._n_offset = (int) newstring; + internal_ptr->u.syment._n._n_n._n_zeroes = 0; + } + else if (!bfd_coff_symname_in_debug(abfd, &internal_ptr->u.syment)) { + /* Long name already. Point symbol at the string in the table. */ + if (string_table == NULL) { + string_table = build_string_table(abfd); + } + internal_ptr->u.syment._n._n_n._n_offset = (int) + (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset); + } + else { + /* Long name in debug section. Very similar. */ + if (debug_section == NULL) { + debug_section = build_debug_section(abfd); + } + internal_ptr->u.syment._n._n_n._n_offset = (int) + (debug_section + internal_ptr->u.syment._n._n_n._n_offset); + } + } + internal_ptr += internal_ptr->u.syment.n_numaux; + } + + obj_raw_syments(abfd) = internal; + + return (internal); +} /* coff_get_normalized_symtab() */ + +unsigned int +DEFUN (coff_get_reloc_upper_bound, (abfd, asect), + bfd *abfd AND + sec_ptr asect) +{ + if (bfd_get_format(abfd) != bfd_object) { + bfd_error = invalid_operation; + return 0; + } + return (asect->reloc_count + 1) * sizeof(arelent *); +} + +asymbol * +DEFUN (coff_make_empty_symbol, (abfd), + bfd *abfd) +{ + coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); + if (new == NULL) { + bfd_error = no_memory; + return (NULL); + } /* on error */ + new->symbol.section = 0; + new->native = 0; + new->lineno = (alent *) NULL; + new->done_lineno = false; + new->symbol.the_bfd = abfd; + return &new->symbol; +} + +asymbol * +DEFUN (coff_make_debug_symbol, (abfd, ptr, sz), + bfd *abfd AND + PTR ptr AND + unsigned long sz) +{ + coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); + if (new == NULL) { + bfd_error = no_memory; + return (NULL); + } /* on error */ + /* @@ This shouldn't be using a constant multiplier. */ + new->native = (combined_entry_type *) bfd_zalloc (abfd, sizeof (combined_entry_type) * 10); + new->symbol.section = &bfd_debug_section; + new->lineno = (alent *) NULL; + new->done_lineno = false; + new->symbol.the_bfd = abfd; + return &new->symbol; +} + +void +DEFUN(coff_print_symbol,(abfd, filep, symbol, how), + bfd *abfd AND + PTR filep AND + asymbol *symbol AND + bfd_print_symbol_type how) +{ + FILE *file = (FILE *)filep; + switch (how) { + case bfd_print_symbol_name: + fprintf(file, "%s", symbol->name); + break; + case bfd_print_symbol_more: + fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native, + (unsigned long) coffsymbol(symbol)->lineno); + break; + case bfd_print_symbol_nm: + + { + CONST char *section_name = symbol->section->name; + bfd_print_symbol_vandf((PTR) file, symbol); + + + fprintf(file, " %-5s %s %s %s", + section_name, + coffsymbol(symbol)->native ? "n" : "g", + coffsymbol(symbol)->lineno ? "l" : " ", + symbol->name); + } + + + break; + case bfd_print_symbol_all: + /* Print out the symbols in a reasonable way */ + { + CONST char *section_name = symbol->section->name; + + + if (coffsymbol(symbol)->native) + { + unsigned int aux; + combined_entry_type *combined = coffsymbol(symbol)->native; + combined_entry_type *root = obj_raw_syments(abfd); + + fprintf(file,"[%3d]", + combined - root); + + + fprintf(file, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s", + combined->u.syment.n_scnum, + combined->u.syment.n_flags, + combined->u.syment.n_type, + combined->u.syment.n_sclass, + combined->u.syment.n_numaux, + combined->u.syment.n_value, + symbol->name + ); + for (aux = 0; aux < combined->u.syment.n_numaux; aux++) + { + fprintf(file,"\n"); + switch (combined->u.syment.n_sclass) { + case C_FILE: + fprintf(file, "File "); + break; + default: + fprintf(file, "AUX lnno %x size %x tagndx %x", + combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_lnno, + combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_size, + combined[aux+1].u.auxent.x_sym.x_tagndx.l); + break; + + } + + } + + { + struct lineno_cache_entry *l = coffsymbol(symbol)->lineno; + if (l) + { + printf("\n%s :", l->u.sym->name); + l++; + while (l->line_number) + { + printf("\n%4d : %x", + l->line_number, + l->u.offset); + l++; + + } + } + } + + + + } + + else { + bfd_print_symbol_vandf((PTR) file, symbol); + fprintf(file, " %-5s %s %s %s", + section_name, + coffsymbol(symbol)->native ? "n" : "g", + coffsymbol(symbol)->lineno ? "l" : " ", + symbol->name); + } + + } + + } +} + +/* Provided a BFD, a section and an offset into the section, calculate + and return the name of the source file and the line nearest to the + wanted location. */ + +boolean +DEFUN(coff_find_nearest_line,(abfd, + section, + ignore_symbols, + offset, + filename_ptr, + functionname_ptr, + line_ptr), + bfd *abfd AND + asection *section AND + asymbol **ignore_symbols AND + bfd_vma offset AND + CONST char **filename_ptr AND + CONST char **functionname_ptr AND + unsigned int *line_ptr) +{ + static bfd *cache_abfd; + static asection *cache_section; + static bfd_vma cache_offset; + static unsigned int cache_i; + static alent *cache_l; + + unsigned int i = 0; + coff_data_type *cof = coff_data(abfd); + /* Run through the raw syments if available */ + combined_entry_type *p; + alent *l; + unsigned int line_base = 0; + + + *filename_ptr = 0; + *functionname_ptr = 0; + *line_ptr = 0; + + /* Don't try and find line numbers in a non coff file */ + if (abfd->xvec->flavour != bfd_target_coff_flavour) + return false; + + if (cof == NULL) + return false; + + p = cof->raw_syments; + + for (i = 0; i < cof->raw_syment_count; i++) { + if (p->u.syment.n_sclass == C_FILE) { + /* File name has been moved into symbol */ + *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; + break; + } + p += 1 + p->u.syment.n_numaux; + } + /* Now wander though the raw linenumbers of the section */ + /* + If this is the same BFD as we were previously called with and this is + the same section, and the offset we want is further down then we can + prime the lookup loop + */ + if (abfd == cache_abfd && + section == cache_section && + offset >= cache_offset) { + i = cache_i; + l = cache_l; + } + else { + i = 0; + l = section->lineno; + } + + for (; i < section->lineno_count; i++) { + if (l->line_number == 0) { + /* Get the symbol this line number points at */ + coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); + *functionname_ptr = coff->symbol.name; + if (coff->native) { + combined_entry_type *s = coff->native; + s = s + 1 + s->u.syment.n_numaux; + /* + S should now point to the .bf of the function + */ + if (s->u.syment.n_numaux) { + /* + The linenumber is stored in the auxent + */ + union internal_auxent *a = &((s + 1)->u.auxent); + line_base = a->x_sym.x_misc.x_lnsz.x_lnno; + } + } + } + else { + if (l->u.offset > offset) + break; + *line_ptr = l->line_number + line_base + 1; + } + l++; + } + + cache_abfd = abfd; + cache_section = section; + cache_offset = offset; + cache_i = i; + cache_l = l; + + return true; +} + +int +DEFUN(coff_sizeof_headers,(abfd, reloc), + bfd *abfd AND + boolean reloc) +{ + size_t size; + + if (reloc == false) { + size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); + } + else { + size = bfd_coff_filhsz (abfd); + } + + size += abfd->section_count * bfd_coff_scnhsz (abfd); + return size; +} diff --git a/bfd/coffswap.h b/bfd/coffswap.h new file mode 100644 index 0000000..ed1137e --- /dev/null +++ b/bfd/coffswap.h @@ -0,0 +1,559 @@ +/* Generic COFF swapping routines, for BFD. + Copyright 1990, 1991, 1992 Free Software Foundation, Inc. + Written by Cygnus Support. + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* This file contains routines used to swap COFF data. It is a header + file because the details of swapping depend on the details of the + structures used by each COFF implementation. This is included by + coffcode.h, as well as by the ECOFF backend. + + Any file which uses this must first include "coff/internal.h" and + "coff/CPU.h". The functions will then be correct for that CPU. */ + +#define PUTWORD bfd_h_put_32 +#define PUTHALF bfd_h_put_16 +#define PUTBYTE bfd_h_put_8 + +#ifndef GET_FCN_LNNOPTR +#define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) +#endif + +#ifndef GET_FCN_ENDNDX +#define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) +#endif + +#ifndef PUT_FCN_LNNOPTR +#define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) +#endif +#ifndef PUT_FCN_ENDNDX +#define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) +#endif +#ifndef GET_LNSZ_LNNO +#define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno) +#endif +#ifndef GET_LNSZ_SIZE +#define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size) +#endif +#ifndef PUT_LNSZ_LNNO +#define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno) +#endif +#ifndef PUT_LNSZ_SIZE +#define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size) +#endif +#ifndef GET_SCN_SCNLEN +#define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen) +#endif +#ifndef GET_SCN_NRELOC +#define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc) +#endif +#ifndef GET_SCN_NLINNO +#define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno) +#endif +#ifndef PUT_SCN_SCNLEN +#define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen) +#endif +#ifndef PUT_SCN_NRELOC +#define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc) +#endif +#ifndef PUT_SCN_NLINNO +#define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno) +#endif +#ifndef GET_LINENO_LNNO +#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno)); +#endif +#ifndef PUT_LINENO_LNNO +#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno)); +#endif + +static void +DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst), + bfd *abfd AND + RELOC *reloc_src AND + struct internal_reloc *reloc_dst) +{ + reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); + reloc_dst->r_symndx = bfd_h_get_32(abfd, (bfd_byte *) reloc_src->r_symndx); + +#ifdef RS6000COFF_C + reloc_dst->r_type = bfd_h_get_8(abfd, reloc_src->r_type); + reloc_dst->r_size = bfd_h_get_8(abfd, reloc_src->r_size); +#else + reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); +#endif + +#ifdef SWAP_IN_RELOC_OFFSET + reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd, + (bfd_byte *) reloc_src->r_offset); +#endif +} + + +static unsigned int +DEFUN(coff_swap_reloc_out,(abfd, src, dst), + bfd *abfd AND + PTR src AND + PTR dst) +{ + struct internal_reloc *reloc_src = (struct internal_reloc *)src; + struct external_reloc *reloc_dst = (struct external_reloc *)dst; + bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); + bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); + bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) + reloc_dst->r_type); + +#ifdef SWAP_OUT_RELOC_OFFSET + SWAP_OUT_RELOC_OFFSET(abfd, + reloc_src->r_offset, + (bfd_byte *) reloc_dst->r_offset); +#endif +#ifdef SWAP_OUT_RELOC_EXTRA + SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst); +#endif + + return sizeof(struct external_reloc); +} + +static void +DEFUN(coff_swap_filehdr_in,(abfd, src, dst), + bfd *abfd AND + PTR src AND + PTR dst) +{ + FILHDR *filehdr_src = (FILHDR *) src; + struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; + filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); + filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); + filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); + filehdr_dst->f_symptr = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_symptr); + filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); + filehdr_dst->f_opthdr = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_opthdr); + filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); +} + +static unsigned int +DEFUN(coff_swap_filehdr_out,(abfd, in, out), + bfd *abfd AND + PTR in AND + PTR out) +{ + struct internal_filehdr *filehdr_in = (struct internal_filehdr *)in; + FILHDR *filehdr_out = (FILHDR *)out; + bfd_h_put_16(abfd, filehdr_in->f_magic, (bfd_byte *) filehdr_out->f_magic); + bfd_h_put_16(abfd, filehdr_in->f_nscns, (bfd_byte *) filehdr_out->f_nscns); + bfd_h_put_32(abfd, filehdr_in->f_timdat, (bfd_byte *) filehdr_out->f_timdat); + bfd_h_put_32(abfd, filehdr_in->f_symptr, (bfd_byte *) filehdr_out->f_symptr); + bfd_h_put_32(abfd, filehdr_in->f_nsyms, (bfd_byte *) filehdr_out->f_nsyms); + bfd_h_put_16(abfd, filehdr_in->f_opthdr, (bfd_byte *) filehdr_out->f_opthdr); + bfd_h_put_16(abfd, filehdr_in->f_flags, (bfd_byte *) filehdr_out->f_flags); + return sizeof(FILHDR); +} + + +#ifndef NO_COFF_SYMBOLS + +static void +DEFUN(coff_swap_sym_in,(abfd, ext1, in1), + bfd *abfd AND + PTR ext1 AND + PTR in1) +{ + SYMENT *ext = (SYMENT *)ext1; + struct internal_syment *in = (struct internal_syment *)in1; + + if( ext->e.e_name[0] == 0) { + in->_n._n_n._n_zeroes = 0; + in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset); + } + else { +#if SYMNMLEN != E_SYMNMLEN + -> Error, we need to cope with truncating or extending SYMNMLEN!; +#else + memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN); +#endif + } + in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value); + in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum); + if (sizeof(ext->e_type) == 2){ + in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type); + } + else { + in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type); + } + in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); + in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); +} + +static unsigned int +DEFUN(coff_swap_sym_out,(abfd, inp, extp), + bfd *abfd AND + PTR inp AND + PTR extp) +{ + struct internal_syment *in = (struct internal_syment *)inp; + SYMENT *ext =(SYMENT *)extp; + if(in->_n._n_name[0] == 0) { + bfd_h_put_32(abfd, 0, (bfd_byte *) ext->e.e.e_zeroes); + bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e.e.e_offset); + } + else { +#if SYMNMLEN != E_SYMNMLEN + -> Error, we need to cope with truncating or extending SYMNMLEN!; +#else + memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN); +#endif + } + bfd_h_put_32(abfd, in->n_value , (bfd_byte *) ext->e_value); + bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum); + if (sizeof(ext->e_type) == 2) + { + bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type); + } + else + { + bfd_h_put_32(abfd, in->n_type , (bfd_byte *) ext->e_type); + } + bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass); + bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux); + return sizeof(SYMENT); +} + +static void +DEFUN(coff_swap_aux_in,(abfd, ext1, type, class, in1), + bfd *abfd AND + PTR ext1 AND + int type AND + int class AND + PTR in1) +{ + AUXENT *ext = (AUXENT *)ext1; + union internal_auxent *in = (union internal_auxent *)in1; + + switch (class) { + case C_FILE: + if (ext->x_file.x_fname[0] == 0) { + in->x_file.x_n.x_zeroes = 0; + in->x_file.x_n.x_offset = + bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset); + } else { +#if FILNMLEN != E_FILNMLEN + -> Error, we need to cope with truncating or extending FILNMLEN!; +#else + memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN); +#endif + } + break; + + /* RS/6000 "csect" auxents */ +#ifdef RS6000COFF_C + case C_EXT: + case C_HIDEXT: + in->x_csect.x_scnlen = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_scnlen); + in->x_csect.x_parmhash = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_parmhash); + in->x_csect.x_snhash = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snhash); + /* We don't have to hack bitfields in x_smtyp because it's defined by + shifts-and-ands, which are equivalent on all byte orders. */ + in->x_csect.x_smtyp = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smtyp); + in->x_csect.x_smclas = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smclas); + in->x_csect.x_stab = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_stab); + in->x_csect.x_snstab = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snstab); + break; +#endif + + case C_STAT: +#ifdef C_LEAFSTAT + case C_LEAFSTAT: +#endif + case C_HIDDEN: + if (type == T_NULL) { + in->x_scn.x_scnlen = GET_SCN_SCNLEN(abfd, ext); + in->x_scn.x_nreloc = GET_SCN_NRELOC(abfd, ext); + in->x_scn.x_nlinno = GET_SCN_NLINNO(abfd, ext); + break; + } + default: + in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx); +#ifndef NO_TVNDX + in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx); +#endif + + if (ISARY(type)) { +#if DIMNUM != E_DIMNUM + -> Error, we need to cope with truncating or extending DIMNUM!; +#else + in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[0]); + in->x_sym.x_fcnary.x_ary.x_dimen[1] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[1]); + in->x_sym.x_fcnary.x_ary.x_dimen[2] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[2]); + in->x_sym.x_fcnary.x_ary.x_dimen[3] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[3]); +#endif + } + if (class == C_BLOCK || ISFCN(type) || ISTAG(class)) { + in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext); + in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext); + } + + if (ISFCN(type)) { + in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize); + } + else { + in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext); + in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext); + } + } +} + +static unsigned int +DEFUN(coff_swap_aux_out,(abfd, inp, type, class, extp), + bfd *abfd AND + PTR inp AND + int type AND + int class AND + PTR extp) +{ + union internal_auxent *in = (union internal_auxent *)inp; + AUXENT *ext = (AUXENT *)extp; + + memset((PTR)ext, 0, AUXESZ); + switch (class) { + case C_FILE: + if (in->x_file.x_fname[0] == 0) { + PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes); + PUTWORD(abfd, + in->x_file.x_n.x_offset, + (bfd_byte *) ext->x_file.x_n.x_offset); + } + else { +#if FILNMLEN != E_FILNMLEN + -> Error, we need to cope with truncating or extending FILNMLEN!; +#else + memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN); +#endif + } + break; + +#ifdef RS6000COFF_C + /* RS/6000 "csect" auxents */ + case C_EXT: + case C_HIDEXT: + PUTWORD (abfd, in->x_csect.x_scnlen, ext->x_csect.x_scnlen); + PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash); + PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash); + /* We don't have to hack bitfields in x_smtyp because it's defined by + shifts-and-ands, which are equivalent on all byte orders. */ + PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp); + PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas); + PUTWORD (abfd, in->x_csect.x_stab, ext->x_csect.x_stab); + PUTHALF (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab); + break; +#endif + + case C_STAT: +#ifdef C_LEAFSTAT + case C_LEAFSTAT: +#endif + case C_HIDDEN: + if (type == T_NULL) { + PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext); + PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext); + PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext); + break; + } + default: + PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx); +#ifndef NO_TVNDX + bfd_h_put_16(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx); +#endif + + if (class == C_BLOCK || ISFCN(type) || ISTAG(class)) { + PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext); + PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext); + } + + if (ISFCN(type)) { + PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize); + } + else { + if (ISARY(type)) { +#if DIMNUM != E_DIMNUM + -> Error, we need to cope with truncating or extending DIMNUM!; +#else + bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[0]); + bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[1]); + bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[2]); + bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[3]); +#endif + } + PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext); + PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext); + } + } +return sizeof(AUXENT); +} + +#endif /* NO_COFF_SYMBOLS */ + +#ifndef NO_COFF_LINENOS + +static void +DEFUN(coff_swap_lineno_in,(abfd, ext1, in1), + bfd *abfd AND + PTR ext1 AND + PTR in1) +{ + LINENO *ext = (LINENO *)ext1; + struct internal_lineno *in = (struct internal_lineno *)in1; + + in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx); + in->l_lnno = GET_LINENO_LNNO(abfd, ext); +} + +static unsigned int +DEFUN(coff_swap_lineno_out,(abfd, inp, outp), + bfd *abfd AND + PTR inp AND + PTR outp) +{ + struct internal_lineno *in = (struct internal_lineno *)inp; + struct external_lineno *ext = (struct external_lineno *)outp; + PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *) + ext->l_addr.l_symndx); + + PUT_LINENO_LNNO (abfd, in->l_lnno, ext); + return sizeof(struct external_lineno); +} + +#endif /* NO_COFF_LINENOS */ + + +static void +DEFUN(coff_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1), + bfd *abfd AND + PTR aouthdr_ext1 AND + PTR aouthdr_int1) +{ + AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1; + struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1; + + aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic); + aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp); + aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize); + aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize); + aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize); + aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry); + aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start); + aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start); +#ifdef I960 + aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries); +#endif + +#ifdef RS6000COFF_C + aouthdr_int->o_toc = bfd_h_get_32(abfd, aouthdr_ext->o_toc); + aouthdr_int->o_snentry = bfd_h_get_16(abfd, aouthdr_ext->o_snentry); + aouthdr_int->o_sntext = bfd_h_get_16(abfd, aouthdr_ext->o_sntext); + aouthdr_int->o_sndata = bfd_h_get_16(abfd, aouthdr_ext->o_sndata); + aouthdr_int->o_sntoc = bfd_h_get_16(abfd, aouthdr_ext->o_sntoc); + aouthdr_int->o_snloader = bfd_h_get_16(abfd, aouthdr_ext->o_snloader); + aouthdr_int->o_snbss = bfd_h_get_16(abfd, aouthdr_ext->o_snbss); + aouthdr_int->o_algntext = bfd_h_get_16(abfd, aouthdr_ext->o_algntext); + aouthdr_int->o_algndata = bfd_h_get_16(abfd, aouthdr_ext->o_algndata); + aouthdr_int->o_modtype = bfd_h_get_16(abfd, aouthdr_ext->o_modtype); + aouthdr_int->o_maxstack = bfd_h_get_32(abfd, aouthdr_ext->o_maxstack); +#endif +} + +static unsigned int +DEFUN(coff_swap_aouthdr_out,(abfd, in, out), + bfd *abfd AND + PTR in AND + PTR out) +{ + struct internal_aouthdr *aouthdr_in = (struct internal_aouthdr *)in; + AOUTHDR *aouthdr_out = (AOUTHDR *)out; + bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic); + bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp); + bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize); + bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize); + bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize); + bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry); + bfd_h_put_32(abfd, aouthdr_in->text_start, + (bfd_byte *) aouthdr_out->text_start); + bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start); +#ifdef I960 + bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries); +#endif + return sizeof(AOUTHDR); +} + +static void +DEFUN(coff_swap_scnhdr_in,(abfd, ext, in), + bfd *abfd AND + PTR ext AND + PTR in) +{ + SCNHDR *scnhdr_ext = (SCNHDR *) ext; + struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; + memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name)); + scnhdr_int->s_vaddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_vaddr); + scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr); + scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size); + + scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr); + scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr); + scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); + scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); +#if defined(M88) + scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); + scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); +#else + scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); + scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); +#endif +#ifdef I960 + scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align); +#endif +} + +static unsigned int +DEFUN(coff_swap_scnhdr_out,(abfd, in, out), + bfd *abfd AND + PTR in AND + PTR out) +{ + struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *)in; + SCNHDR *scnhdr_ext = (SCNHDR *)out; + memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name)); + PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr); + PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr); + PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size); + PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr); + PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr); + PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr); + PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags); +#if defined(M88) + PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); + PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); +#else + PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); + PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); +#endif + +#if defined(I960) + PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align); +#endif + return sizeof(SCNHDR); +} diff --git a/bfd/libcoff-in.h b/bfd/libcoff-in.h new file mode 100644 index 0000000..12616c9 --- /dev/null +++ b/bfd/libcoff-in.h @@ -0,0 +1,112 @@ +/* BFD COFF object file private structure. + Copyright (C) 1990-1991 Free Software Foundation, Inc. + Written by Cygnus Support. + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + + +/* Object file tdata; access macros */ + +#define coff_data(bfd) ((bfd)->tdata.coff_obj_data) +#define exec_hdr(bfd) (coff_data(bfd)->hdr) +#define obj_symbols(bfd) (coff_data(bfd)->symbols) +#define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos) + +#define obj_relocbase(bfd) (coff_data(bfd)->relocbase) +#define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments) +#define obj_convert(bfd) (coff_data(bfd)->conversion_table) +#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size) +#if CFILE_STUFF +#define obj_symbol_slew(bfd) (coff_data(bfd)->symbol_index_slew) +#else +#define obj_symbol_slew(bfd) 0 +#endif + + +/* `Tdata' information kept for COFF files. */ + +typedef struct coff_tdata +{ + struct coff_symbol_struct *symbols; /* symtab for input bfd */ + unsigned int *conversion_table; + int conv_table_size; + file_ptr sym_filepos; + + long symbol_index_slew; /* used during read to mark whether a + C_FILE symbol as been added. */ + + struct coff_ptr_struct *raw_syments; + struct lineno *raw_linenos; + unsigned int raw_syment_count; + unsigned short flags; + + /* These are only valid once writing has begun */ + long int relocbase; + + /* These members communicate important constants about the symbol table + to GDB's symbol-reading code. These `constants' unfortunately vary + from coff implementation to implementation... */ + unsigned local_n_btmask; + unsigned local_n_btshft; + unsigned local_n_tmask; + unsigned local_n_tshift; + unsigned local_symesz; + unsigned local_auxesz; + unsigned local_linesz; +} coff_data_type; + +/* We take the address of the first element of a asymbol to ensure that the + * macro is only ever applied to an asymbol. */ +#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd))) + +/* Functions in coffgen.c. */ +extern bfd_target *coff_object_p PARAMS ((bfd *)); +extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int)); +extern unsigned int coff_get_symtab_upper_bound PARAMS ((bfd *)); +extern unsigned int coff_get_symtab PARAMS ((bfd *, asymbol **)); +extern void coff_count_linenumbers PARAMS ((bfd *)); +extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *)); +extern void coff_renumber_symbols PARAMS ((bfd *)); +extern void coff_mangle_symbols PARAMS ((bfd *)); +extern void coff_write_symbols PARAMS ((bfd *)); +extern void coff_write_linenumbers PARAMS ((bfd *)); +extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *)); +extern asymbol *coff_section_symbol PARAMS ((bfd *, char *)); +extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *)); +extern unsigned int coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr)); +extern asymbol *coff_make_empty_symbol PARAMS ((bfd *)); +extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *, + bfd_print_symbol_type how)); +extern asymbol *coff_make_debug_symbol PARAMS ((bfd *, PTR, unsigned long)); +extern boolean coff_find_nearest_line PARAMS ((bfd *, + asection *, + asymbol **, + bfd_vma offset, + CONST char **filename_ptr, + CONST char **functionname_ptr, + unsigned int *line_ptr)); +extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc)); +extern boolean bfd_coff_reloc16_relax_section PARAMS ((bfd *, + asection *, + asymbol **)); +extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents + PARAMS ((bfd *, bfd_seclet_type *, bfd_byte *)); +extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *, + bfd_seclet_type *)); + +/* And more taken from the source .. */ + diff --git a/bfd/libcoff.h b/bfd/libcoff.h index 094c30b..ee4f471 100644 --- a/bfd/libcoff.h +++ b/bfd/libcoff.h @@ -73,7 +73,40 @@ typedef struct coff_tdata * macro is only ever applied to an asymbol. */ #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd))) - +/* Functions in coffgen.c. */ +extern bfd_target *coff_object_p PARAMS ((bfd *)); +extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int)); +extern unsigned int coff_get_symtab_upper_bound PARAMS ((bfd *)); +extern unsigned int coff_get_symtab PARAMS ((bfd *, asymbol **)); +extern void coff_count_linenumbers PARAMS ((bfd *)); +extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *)); +extern void coff_renumber_symbols PARAMS ((bfd *)); +extern void coff_mangle_symbols PARAMS ((bfd *)); +extern void coff_write_symbols PARAMS ((bfd *)); +extern void coff_write_linenumbers PARAMS ((bfd *)); +extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *)); +extern asymbol *coff_section_symbol PARAMS ((bfd *, char *)); +extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *)); +extern unsigned int coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr)); +extern asymbol *coff_make_empty_symbol PARAMS ((bfd *)); +extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *, + bfd_print_symbol_type how)); +extern asymbol *coff_make_debug_symbol PARAMS ((bfd *, PTR, unsigned long)); +extern boolean coff_find_nearest_line PARAMS ((bfd *, + asection *, + asymbol **, + bfd_vma offset, + CONST char **filename_ptr, + CONST char **functionname_ptr, + unsigned int *line_ptr)); +extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc)); +extern boolean bfd_coff_reloc16_relax_section PARAMS ((bfd *, + asection *, + asymbol **)); +extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents + PARAMS ((bfd *, bfd_seclet_type *, bfd_byte *)); +extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *, + bfd_seclet_type *)); /* And more taken from the source .. */ @@ -118,7 +151,8 @@ struct lineno_cache_entry *lineno; /* Have the line numbers been relocated yet ? */ boolean done_lineno; } coff_symbol_type; -typedef struct { +typedef struct +{ void (*_bfd_coff_swap_aux_in) PARAMS (( bfd *abfd , PTR ext, @@ -173,10 +207,58 @@ typedef struct { PTR in, PTR out)); + unsigned int _bfd_filhsz; + unsigned int _bfd_aoutsz; + unsigned int _bfd_scnhsz; + unsigned int _bfd_symesz; + unsigned int _bfd_auxesz; + unsigned int _bfd_linesz; + boolean _bfd_coff_long_filenames; + void (*_bfd_coff_swap_filehdr_in) PARAMS (( + bfd *abfd, + PTR ext, + PTR in)); + void (*_bfd_coff_swap_aouthdr_in) PARAMS (( + bfd *abfd, + PTR ext, + PTR in)); + void (*_bfd_coff_swap_scnhdr_in) PARAMS (( + bfd *abfd, + PTR ext, + PTR in)); + boolean (*_bfd_coff_bad_format_hook) PARAMS (( + bfd *abfd, + PTR internal_filehdr)); + boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( + bfd *abfd, + PTR internal_filehdr)); + PTR (*_bfd_coff_mkobject_hook) PARAMS (( + bfd *abfd, + PTR internal_filehdr)); + flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( + bfd *abfd, + PTR internal_scnhdr)); + asection *(*_bfd_make_section_hook) PARAMS (( + bfd *abfd, + char *name)); + void (*_bfd_set_alignment_hook) PARAMS (( + bfd *abfd, + asection *sec, + PTR internal_scnhdr)); + boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( + bfd *abfd)); + boolean (*_bfd_coff_symname_in_debug) PARAMS (( + bfd *abfd, + struct internal_syment *sym)); + void (*_bfd_coff_reloc16_extra_cases) PARAMS (( + bfd *abfd, + bfd_seclet_type *seclet, + arelent *reloc, + bfd_byte *data, + unsigned int *src_ptr, + unsigned int *dst_ptr)); } bfd_coff_backend_data; -extern bfd_coff_backend_data bfd_coff_std_swap_table; - #define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) #define bfd_coff_swap_aux_in(a,e,t,c,i) \ @@ -209,3 +291,46 @@ extern bfd_coff_backend_data bfd_coff_std_swap_table; #define bfd_coff_swap_aouthdr_out(abfd, i,o) \ ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) +#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) +#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) +#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) +#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) +#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) +#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) +#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) +#define bfd_coff_swap_filehdr_in(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) + +#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) + +#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) + +#define bfd_coff_bad_format_hook(abfd, filehdr) \ + ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) + +#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ + ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) +#define bfd_coff_mkobject_hook(abfd, filehdr)\ + ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr)) + +#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr)\ + ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr)) + +#define bfd_coff_make_section_hook(abfd, name)\ + ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name)) + +#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ + ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) + +#define bfd_coff_slurp_symbol_table(abfd)\ + ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) + +#define bfd_coff_symname_in_debug(abfd, sym)\ + ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) + +#define bfd_coff_reloc16_extra_cases(abfd, seclet, reloc, data, src_ptr, dst_ptr)\ + ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ + (abfd, seclet, reloc, data, src_ptr, dst_ptr)) + diff --git a/bfd/reloc16.c b/bfd/reloc16.c new file mode 100644 index 0000000..434c9aa --- /dev/null +++ b/bfd/reloc16.c @@ -0,0 +1,409 @@ +/* 8 and 16 bit COFF relocation functions, for BFD. + Copyright 1990, 1991, 1992 Free Software Foundation, Inc. + Written by Cygnus Support. + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* +Most of this hacked by Steve Chamberlain, + sac@cygnus.com +*/ + +/* These routines are used by coff-h8300 and coff-z8k to do + relocation. */ + +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" +#include "seclet.h" +#include "obstack.h" +#include "coff/internal.h" +#include "libcoff.h" + +extern bfd_error_vector_type bfd_error_vector; + +bfd_vma +DEFUN(bfd_coff_reloc16_get_value,(reloc, seclet), + arelent *reloc AND + bfd_seclet_type *seclet) +{ + bfd_vma value; + asymbol *symbol = *(reloc->sym_ptr_ptr); + /* A symbol holds a pointer to a section, and an offset from the + base of the section. To relocate, we find where the section will + live in the output and add that in */ + + if (symbol->section == &bfd_und_section) + { + /* Ouch, this is an undefined symbol.. */ + bfd_error_vector.undefined_symbol(reloc, seclet); + value = symbol->value; + } + else + { + value = symbol->value + + symbol->section->output_offset + + symbol->section->output_section->vma; + } + + + /* Add the value contained in the relocation */ + value += reloc->addend; + + return value; +} + +static void +DEFUN(perform_slip,(s, slip, input_section, value), + asymbol **s AND + unsigned int slip AND + asection *input_section AND + bfd_vma value) +{ + + /* Find all symbols past this point, and make them know + what's happened */ + while (*s) + { + asymbol *p = *s; + if (p->section == input_section) + { + /* This was pointing into this section, so mangle it */ + if (p->value > value) + { + p->value -= slip; + } + } + s++; + + } +} +static int +DEFUN(movb1,(input_section, symbols, r, shrink), + asection *input_section AND + asymbol **symbols AND + arelent *r AND + unsigned int shrink) +{ + bfd_vma value = bfd_coff_reloc16_get_value(r,0); + + if (value >= 0xff00) + { + + /* Change the reloc type from 16bit, possible 8 to 8bit + possible 16 */ + r->howto = r->howto + 1; + /* The place to relc moves back by one */ + r->address -=1; + + /* This will be two bytes smaller in the long run */ + shrink +=2 ; + perform_slip(symbols, 2, input_section, r->address - shrink +1); + + + } + return shrink; +} + +static int +DEFUN(jmp1,(input_section, symbols, r, shrink), + asection *input_section AND + asymbol **symbols AND + arelent *r AND + unsigned int shrink) +{ + + + bfd_vma value = bfd_coff_reloc16_get_value(r, 0); + + bfd_vma dot = input_section->output_section->vma + + input_section->output_offset + r->address; + bfd_vma gap; + + /* See if the address we're looking at within 127 bytes of where + we are, if so then we can use a small branch rather than the + jump we were going to */ + + gap = value - (dot - shrink); + + + if (-120 < (long)gap && (long)gap < 120 ) + { + + /* Change the reloc type from 16bit, possible 8 to 8bit + possible 16 */ + r->howto = r->howto + 1; + /* The place to relc moves back by one */ + r->address -=1; + + /* This will be two bytes smaller in the long run */ + shrink +=2 ; + perform_slip(symbols, 2, input_section, r->address-shrink +1); + + + } + return shrink; +} + +boolean +DEFUN(bfd_coff_reloc16_relax_section,(abfd, i, symbols), + bfd *abfd AND + asection *i AND + asymbol **symbols) +{ + + /* Get enough memory to hold the stuff */ + bfd *input_bfd = i->owner; + asection *input_section = i; + int shrink = 0 ; + boolean new = false; + + bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd, + input_section); + arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size); + + /* Get the relocs and think about them */ + if (bfd_canonicalize_reloc(input_bfd, + input_section, + reloc_vector, + symbols)) + { + arelent **parent; + for (parent = reloc_vector; *parent; parent++) + { + arelent *r = *parent; + switch (r->howto->type) { + case R_MOVB2: + case R_JMP2: + + shrink+=2; + break; + + case R_MOVB1: + shrink = movb1(input_section, symbols, r, shrink); + new = true; + + break; + case R_JMP1: + shrink = jmp1(input_section, symbols, r, shrink); + new = true; + + break; + } + } + + } + input_section->_cooked_size -= shrink; + free((char *)reloc_vector); + return new; +} + +bfd_byte * +DEFUN(bfd_coff_reloc16_get_relocated_section_contents,(in_abfd, seclet, data), + bfd *in_abfd AND + bfd_seclet_type *seclet AND + bfd_byte *data) + +{ + /* Get enough memory to hold the stuff */ + bfd *input_bfd = seclet->u.indirect.section->owner; + asection *input_section = seclet->u.indirect.section; + bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd, + input_section); + arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size); + + /* read in the section */ + bfd_get_section_contents(input_bfd, + input_section, + data, + 0, + input_section->_raw_size); + + + if (bfd_canonicalize_reloc(input_bfd, + input_section, + reloc_vector, + seclet->u.indirect.symbols) ) + { + arelent **parent = reloc_vector; + arelent *reloc ; + + + + unsigned int dst_address = 0; + unsigned int src_address = 0; + unsigned int run; + unsigned int idx; + + /* Find how long a run we can do */ + while (dst_address < seclet->size) + { + + reloc = *parent; + if (reloc) + { + /* Note that the relaxing didn't tie up the addresses in the + relocation, so we use the original address to work out the + run of non-relocated data */ + run = reloc->address - src_address; + parent++; + + } + else + { + run = seclet->size - dst_address; + } + /* Copy the bytes */ + for (idx = 0; idx < run; idx++) + { + data[dst_address++] = data[src_address++]; + } + + /* Now do the relocation */ + + if (reloc) + { + switch (reloc->howto->type) + { + case R_JMP2: + /* Speciial relaxed type */ + { + bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma; + int gap = bfd_coff_reloc16_get_value(reloc,seclet)-dot-1; + if ((gap & ~0xff ) != 0 &&((gap & 0xff00)!= 0xff00)) abort(); + + bfd_put_8(in_abfd,gap, data+dst_address); + + switch (data[dst_address-1]) + { + + case 0x5e: + /* jsr -> bsr */ + bfd_put_8(in_abfd, 0x55, data+dst_address-1); + break; + case 0x5a: + /* jmp ->bra */ + bfd_put_8(in_abfd, 0x40, data+dst_address-1); + break; + + default: + abort(); + + } + + + + + dst_address++; + src_address+=3; + + break; + } + + + case R_MOVB2: + /* Special relaxed type, there will be a gap between where we + get stuff from and where we put stuff to now + + for a mov.b @aa:16 -> mov.b @aa:8 + opcode 0x6a 0x0y offset + -> 0x2y off + */ + if (data[dst_address-1] != 0x6a) + abort(); + switch (data[src_address] & 0xf0) + { + case 0x00: + /* Src is memory */ + data[dst_address-1] = (data[src_address] & 0xf) | 0x20; + break; + case 0x80: + /* Src is reg */ + data[dst_address-1] = (data[src_address] & 0xf) | 0x30; + break; + default: + abort(); + } + + /* the offset must fit ! after all, what was all the relaxing + about ? */ + + bfd_put_8(in_abfd, bfd_coff_reloc16_get_value(reloc, seclet), + data + dst_address); + + /* Note the magic - src goes up by two bytes, but dst by only + one */ + dst_address+=1; + src_address+=3; + + break; + /* PCrel 8 bits */ + case R_PCRBYTE: + { + bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma; + int gap = bfd_coff_reloc16_get_value(reloc,seclet)-dot; + if (gap > 127 || gap < -128) + { + bfd_error_vector.reloc_value_truncated(reloc, seclet); + } + + bfd_put_8(in_abfd,gap, data+dst_address); + dst_address++; + src_address++; + + break; + } + + case R_RELBYTE: + { + unsigned int gap =bfd_coff_reloc16_get_value(reloc,seclet); + if (gap > 0xff && gap < ~0xff) + { + bfd_error_vector.reloc_value_truncated(reloc, seclet); + } + + bfd_put_8(in_abfd, gap, data+dst_address); + dst_address+=1; + src_address+=1; + + + } + break; + case R_JMP1: + /* A relword which would have like to have been a pcrel */ + case R_MOVB1: + /* A relword which would like to have been modified but + didn't make it */ + case R_RELWORD: + bfd_put_16(in_abfd, bfd_coff_reloc16_get_value(reloc,seclet), + data+dst_address); + dst_address+=2; + src_address+=2; + break; + default: + bfd_coff_reloc16_extra_cases (in_abfd, seclet, reloc, data, + &src_address, &dst_address); + break; + } + } + } + } + free((char *)reloc_vector); + return data; + +} + |