From 7be1c4891a2036c31e706908d43f33f7f59ae5a9 Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Thu, 11 Aug 2005 01:25:29 +0000 Subject: * README-vms: Delete. * config-gas.com: Delete. * makefile.vms: Delete. * vmsconf.sh: Delete. * config/atof-tahoe.c: Delete. * config/m88k-opcode.h: Delete. * config/obj-bout.c: Delete. * config/obj-bout.h: Delete. * config/obj-hp300.c: Delete. * config/obj-hp300.h: Delete. * config/tc-a29k.c: Delete. * config/tc-a29k.h: Delete. * config/tc-h8500.c: Delete. * config/tc-h8500.h: Delete. * config/tc-m88k.c: Delete. * config/tc-m88k.h: Delete. * config/tc-tahoe.c: Delete. * config/tc-tahoe.h: Delete. * config/tc-tic80.c: Delete. * config/tc-tic80.h: Delete. * config/tc-w65.c: Delete. * config/tc-w65.h: Delete. * config/te-aux.h: Delete. * config/te-delt88.h: Delete. * config/te-delta.h: Delete. * config/te-dpx2.h: Delete. * config/te-hp300.h: Delete. * config/te-ic960.h: Delete. * config/vms-a-conf.h: Delete. * doc/c-a29k.texi: Delete. * doc/c-h8500.texi: Delete. * doc/c-m88k.texi: Delete. * README: Remove obsolete examples, and list of supported targets. * Makefile.am: Remove a29k, h8500, m88k, tahoe, tic80, w65, bout and hp300 support. (DEP_FLAGS): Don't define BFD_ASSEMBLER. * configure.in: Remove --enable-bfd-assembler, need_bfd, primary_bfd_gas. * configure.tgt: Remove a29k, h8300-coff, h8500-*, i960 non-elf, m68k non bfd, m88k, or32-coff, tic80-*, vax non-bfd, w65k-*, *-nindy. * as.c: Remove all non-BFD_ASSEMBLER code, support for above targets. * as.h: Likewise. * dw2gencfi.c: Likewise. * dwarf2dbg.c: Likewise. * ehopt.c: Likewise. * input-file.c: Likewise. * listing.c: Likewise. * literal.c: Likewise. * messages.c: Likewise. * obj.h: Likewise. * output-file.c: Likewise. * read.c: Likewise. * stabs.c: Likewise. * struc-symbol.h: Likewise. * subsegs.c: Likewise. * subsegs.h: Likewise. * symbols.c: Likewise. * symbols.h: Likewise. * tc.h: Likewise. * write.c: Likewise. * write.h: Likewise. * config/aout_gnu.h: Likewise. * config/obj-aout.c: Likewise. * config/obj-aout.h: Likewise. * config/obj-coff.c: Likewise. * config/obj-coff.h: Likewise. * config/obj-evax.h: Likewise. * config/obj-ieee.h: Likewise. * config/tc-arm.c: Likewise. * config/tc-arm.h: Likewise. * config/tc-avr.c: Likewise. * config/tc-avr.h: Likewise. * config/tc-crx.h: Likewise. * config/tc-d10v.h: Likewise. * config/tc-d30v.h: Likewise. * config/tc-dlx.h: Likewise. * config/tc-fr30.h: Likewise. * config/tc-frv.h: Likewise. * config/tc-h8300.c: Likewise. * config/tc-h8300.h: Likewise. * config/tc-hppa.h: Likewise. * config/tc-i370.h: Likewise. * config/tc-i386.c: Likewise. * config/tc-i386.h: Likewise. * config/tc-i860.h: Likewise. * config/tc-i960.c: Likewise. * config/tc-i960.h: Likewise. * config/tc-ip2k.h: Likewise. * config/tc-iq2000.h: Likewise. * config/tc-m32c.h: Likewise. * config/tc-m32r.h: Likewise. * config/tc-m68hc11.h: Likewise. * config/tc-m68k.c: Likewise. * config/tc-m68k.h: Likewise. * config/tc-maxq.c: Likewise. * config/tc-maxq.h: Likewise. * config/tc-mcore.c: Likewise. * config/tc-mcore.h: Likewise. * config/tc-mn10200.h: Likewise. * config/tc-mn10300.c: Likewise. * config/tc-mn10300.h: Likewise. * config/tc-ms1.h: Likewise. * config/tc-msp430.c: Likewise. * config/tc-msp430.h: Likewise. * config/tc-ns32k.c: Likewise. * config/tc-ns32k.h: Likewise. * config/tc-openrisc.h: Likewise. * config/tc-or32.c: Likewise. * config/tc-or32.h: Likewise. * config/tc-ppc.c: Likewise. * config/tc-ppc.h: Likewise. * config/tc-s390.h: Likewise. * config/tc-sh.c: Likewise. * config/tc-sh.h: Likewise. * config/tc-sparc.c: Likewise. * config/tc-tic30.c: Likewise. * config/tc-tic30.h: Likewise. * config/tc-tic4x.c: Likewise. * config/tc-tic4x.h: Likewise. * config/tc-tic54x.c: Likewise. * config/tc-tic54x.h: Likewise. * config/tc-v850.h: Likewise. * config/tc-vax.c: Likewise. * config/tc-vax.h: Likewise. * config/tc-xstormy16.h: Likewise. * config/tc-xtensa.h: Likewise. * config/tc-z8k.c: Likewise. * config/tc-z8k.h: Likewise. * config/vms-a-conf.h * doc/Makefile.am: Likewise. * doc/all.texi: Likewise. * doc/as.texinfo: Likewise. * doc/Makefile.in: Regenerate. * Makefile.in: Regenerate. * configure: Regenerate. * config.in: Regenerate. * po/POTFILES.in: Regenerate. --- gas/config/obj-coff.c | 2806 +------------------------------------------------ 1 file changed, 41 insertions(+), 2765 deletions(-) (limited to 'gas/config/obj-coff.c') diff --git a/gas/config/obj-coff.c b/gas/config/obj-coff.c index 6054726..98b901b 100644 --- a/gas/config/obj-coff.c +++ b/gas/config/obj-coff.c @@ -38,9 +38,9 @@ #define KEEP_RELOC_INFO #endif -/* The BFD_ASSEMBLER version of obj_coff_section will use this macro to set - a new section's attributes when a directive has no valid flags or the - "w" flag is used. This default should be appropriate for most. */ +/* obj_coff_section will use this macro to set a new section's + attributes when a directive has no valid flags or the "w" flag is + used. This default should be appropriate for most. */ #ifndef TC_COFF_SECTION_DEFAULT_ATTRIBUTES #define TC_COFF_SECTION_DEFAULT_ATTRIBUTES (SEC_LOAD | SEC_DATA) #endif @@ -151,9 +151,7 @@ tag_find_or_make (char *name) 0, &zero_address_frag); tag_insert (S_GET_NAME (symbolP), symbolP); -#ifdef BFD_ASSEMBLER symbol_table_insert (symbolP); -#endif } return symbolP; @@ -171,8 +169,6 @@ obj_coff_bss (int ignore ATTRIBUTE_UNUSED) s_lcomm (0); } -#ifdef BFD_ASSEMBLER - #define GET_FILENAME_STRING(X) \ ((char *) (&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1]) @@ -1087,10 +1083,7 @@ obj_coff_weak (int ignore ATTRIBUTE_UNUSED) symbolP = symbol_find_or_make (name); *input_line_pointer = c; SKIP_WHITESPACE (); - -#if defined BFD_ASSEMBLER || defined S_SET_WEAK S_SET_WEAK (symbolP); -#endif #ifdef TE_PE /* See _Microsoft Portable Executable and Common Object @@ -1127,10 +1120,8 @@ void coff_obj_read_begin_hook (void) { /* These had better be the same. Usually 18 bytes. */ -#ifndef BFD_HEADERS know (sizeof (SYMENT) == sizeof (AUXENT)); know (SYMESZ == AUXESZ); -#endif tag_init (); } @@ -1703,2769 +1694,56 @@ symbol_dump (void) #endif /* DEBUG */ -#else /* not BFD_ASSEMBLER */ - -#include "frags.h" -/* This is needed because we include internal bfd things. */ -#include - -#include "libbfd.h" -#include "libcoff.h" - -/* The NOP_OPCODE is for the alignment fill value. Fill with nop so - that we can stick sections together without causing trouble. */ -#ifndef NOP_OPCODE -#define NOP_OPCODE 0x00 -#endif - -/* The zeroes if symbol name is longer than 8 chars */ -#define S_SET_ZEROES(s,v) ((s)->sy_symbol.ost_entry.n_zeroes = (v)) - -#define MIN(a,b) ((a) < (b)? (a) : (b)) - -/* This vector is used to turn a gas internal segment number into a - section number suitable for insertion into a coff symbol table. - This must correspond to seg_info_off_by_4. */ - -const short seg_N_TYPE[] = -{ /* in: segT out: N_TYPE bits */ - C_ABS_SECTION, - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, - 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, - 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, - 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, - C_UNDEF_SECTION, /* SEG_UNKNOWN */ - C_UNDEF_SECTION, /* SEG_GOOF */ - C_UNDEF_SECTION, /* SEG_EXPR */ - C_DEBUG_SECTION, /* SEG_DEBUG */ - C_NTV_SECTION, /* SEG_NTV */ - C_PTV_SECTION, /* SEG_PTV */ - C_REGISTER_SECTION, /* SEG_REGISTER */ -}; - -int function_lineoff = -1; /* Offset in line#s where the last function - started (the odd entry for line #0) */ - -/* Structure used to keep the filenames which - are too long around so that we can stick them - into the string table. */ -struct filename_list -{ - const char *filename; - struct filename_list *next; -}; - -static struct filename_list *filename_list_head; -static struct filename_list *filename_list_tail; - -static symbolS *last_line_symbol; - -/* Add 4 to the real value to get the index and compensate the - negatives. This vector is used by S_GET_SEGMENT to turn a coff - section number into a segment number. */ - -bfd *abfd; -static symbolS *previous_file_symbol; -static int line_base; - -/* When not using BFD_ASSEMBLER, we permit up to 40 sections. - - This array maps a COFF section number into a gas section number. - Because COFF uses negative section numbers, you must add 4 to the - COFF section number when indexing into this array; this is done via - the SEG_INFO_FROM_SECTION_NUMBER macro. This must correspond to - seg_N_TYPE. */ - -static const segT seg_info_off_by_4[] = -{ - SEG_PTV, - SEG_NTV, - SEG_DEBUG, - SEG_ABSOLUTE, - SEG_UNKNOWN, - SEG_E0, SEG_E1, SEG_E2, SEG_E3, SEG_E4, - SEG_E5, SEG_E6, SEG_E7, SEG_E8, SEG_E9, - SEG_E10, SEG_E11, SEG_E12, SEG_E13, SEG_E14, - SEG_E15, SEG_E16, SEG_E17, SEG_E18, SEG_E19, - SEG_E20, SEG_E21, SEG_E22, SEG_E23, SEG_E24, - SEG_E25, SEG_E26, SEG_E27, SEG_E28, SEG_E29, - SEG_E30, SEG_E31, SEG_E32, SEG_E33, SEG_E34, - SEG_E35, SEG_E36, SEG_E37, SEG_E38, SEG_E39, - (segT) 40, - (segT) 41, - (segT) 42, - (segT) 43, - (segT) 44, - (segT) 45, - (segT) 0, - (segT) 0, - (segT) 0, - SEG_REGISTER -}; - -#define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4]) - -static relax_addressT -relax_align (relax_addressT address, long alignment) -{ - relax_addressT mask; - relax_addressT new_address; - - mask = ~((~0) << alignment); - new_address = (address + mask) & (~mask); - - return new_address - address; -} - -segT -s_get_segment (symbolS * x) -{ - return SEG_INFO_FROM_SECTION_NUMBER (x->sy_symbol.ost_entry.n_scnum); -} - -/* Calculate the size of the frag chain and fill in the section header - to contain all of it, also fill in the addr of the sections. */ - -static unsigned int -size_section (bfd *abfd ATTRIBUTE_UNUSED, unsigned int idx) -{ - unsigned int size = 0; - fragS *frag = segment_info[idx].frchainP->frch_root; - - while (frag) - { - size = frag->fr_address; - if (frag->fr_address != size) - { - fprintf (stderr, _("Out of step\n")); - size = frag->fr_address; - } - - switch (frag->fr_type) - { -#ifdef TC_COFF_SIZEMACHDEP - case rs_machine_dependent: - size += TC_COFF_SIZEMACHDEP (frag); - break; -#endif - case rs_space: - case rs_fill: - case rs_org: - size += frag->fr_fix; - size += frag->fr_offset * frag->fr_var; - break; - case rs_align: - case rs_align_code: - case rs_align_test: - { - addressT off; - - size += frag->fr_fix; - off = relax_align (size, frag->fr_offset); - if (frag->fr_subtype != 0 && off > frag->fr_subtype) - off = 0; - size += off; - } - break; - default: - BAD_CASE (frag->fr_type); - break; - } - frag = frag->fr_next; - } - segment_info[idx].scnhdr.s_size = size; - return size; -} - -static unsigned int -count_entries_in_chain (unsigned int idx) -{ - unsigned int nrelocs; - fixS *fixup_ptr; - - /* Count the relocations. */ - fixup_ptr = segment_info[idx].fix_root; - nrelocs = 0; - while (fixup_ptr != (fixS *) NULL) - { - if (fixup_ptr->fx_done == 0 && TC_COUNT_RELOC (fixup_ptr)) - { -#if defined(TC_A29K) || defined(TC_OR32) - if (fixup_ptr->fx_r_type == RELOC_CONSTH) - nrelocs += 2; - else - nrelocs++; -#else - nrelocs++; -#endif - } - - fixup_ptr = fixup_ptr->fx_next; - } - return nrelocs; -} - -#ifdef TE_AUX - -/* AUX's ld expects relocations to be sorted. */ - -static int -compare_external_relocs (const void * x, const void * y) -{ - struct external_reloc *a = (struct external_reloc *) x; - struct external_reloc *b = (struct external_reloc *) y; - bfd_vma aadr = bfd_getb32 (a->r_vaddr); - bfd_vma badr = bfd_getb32 (b->r_vaddr); - - return (aadr < badr ? -1 : badr < aadr ? 1 : 0); -} - -#endif - -/* Output all the relocations for a section. */ - -static void -do_relocs_for (bfd * abfd, object_headers * h, unsigned long *file_cursor) -{ - unsigned int nrelocs; - unsigned int idx; - unsigned long reloc_start = *file_cursor; - - for (idx = SEG_E0; idx < SEG_LAST; idx++) - { - if (segment_info[idx].scnhdr.s_name[0]) - { - struct external_reloc *ext_ptr; - struct external_reloc *external_reloc_vec; - unsigned int external_reloc_size; - unsigned int base = segment_info[idx].scnhdr.s_paddr; - fixS *fix_ptr = segment_info[idx].fix_root; - - nrelocs = count_entries_in_chain (idx); - - if (nrelocs) - /* Bypass this stuff if no relocs. This also incidentally - avoids a SCO bug, where free(malloc(0)) tends to crash. */ - { - external_reloc_size = nrelocs * RELSZ; - external_reloc_vec = malloc (external_reloc_size); - - ext_ptr = external_reloc_vec; - - /* Fill in the internal coff style reloc struct from the - internal fix list. */ - while (fix_ptr) - { - struct internal_reloc intr; - - /* Only output some of the relocations. */ - if (fix_ptr->fx_done == 0 && TC_COUNT_RELOC (fix_ptr)) - { -#ifdef TC_RELOC_MANGLE - TC_RELOC_MANGLE (&segment_info[idx], fix_ptr, &intr, - base); -#else - symbolS *dot; - symbolS *symbol_ptr = fix_ptr->fx_addsy; - - intr.r_type = TC_COFF_FIX2RTYPE (fix_ptr); - intr.r_vaddr = - base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where; - -#ifdef TC_KEEP_FX_OFFSET - intr.r_offset = fix_ptr->fx_offset; -#else - intr.r_offset = 0; -#endif - - while (symbol_ptr->sy_value.X_op == O_symbol - && (! S_IS_DEFINED (symbol_ptr) - || S_IS_COMMON (symbol_ptr))) - { - symbolS *n; - - /* We must avoid looping, as that can occur - with a badly written program. */ - n = symbol_ptr->sy_value.X_add_symbol; - if (n == symbol_ptr) - break; - symbol_ptr = n; - } - - /* Turn the segment of the symbol into an offset. */ - if (symbol_ptr) - { - resolve_symbol_value (symbol_ptr); - if (! symbol_ptr->sy_resolved) - { - char *file; - unsigned int line; - - if (expr_symbol_where (symbol_ptr, &file, &line)) - as_bad_where (file, line, - _("unresolved relocation")); - else - as_bad (_("bad relocation: symbol `%s' not in symbol table"), - S_GET_NAME (symbol_ptr)); - } - - dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot; - if (dot) - intr.r_symndx = dot->sy_number; - else - intr.r_symndx = symbol_ptr->sy_number; - } - else - intr.r_symndx = -1; -#endif - (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr); - ext_ptr++; -#if defined(TC_A29K) - /* The 29k has a special kludge for the high 16 bit - reloc. Two relocations are emitted, R_IHIHALF, - and R_IHCONST. The second one doesn't contain a - symbol, but uses the value for offset. */ - if (intr.r_type == R_IHIHALF) - { - /* Now emit the second bit. */ - intr.r_type = R_IHCONST; - intr.r_symndx = fix_ptr->fx_addnumber; - (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr); - ext_ptr++; - } -#endif -#if defined(TC_OR32) - /* The or32 has a special kludge for the high 16 bit - reloc. Two relocations are emitted, R_IHIHALF, - and R_IHCONST. The second one doesn't contain a - symbol, but uses the value for offset. */ - if (intr.r_type == R_IHIHALF) - { - /* Now emit the second bit. */ - intr.r_type = R_IHCONST; - intr.r_symndx = fix_ptr->fx_addnumber; - (void) bfd_coff_swap_reloc_out (abfd, & intr, ext_ptr); - ext_ptr ++; - } -#endif - } - - fix_ptr = fix_ptr->fx_next; - } -#ifdef TE_AUX - /* Sort the reloc table. */ - qsort ((void *) external_reloc_vec, nrelocs, - sizeof (struct external_reloc), compare_external_relocs); -#endif - /* Write out the reloc table. */ - bfd_bwrite ((void *) external_reloc_vec, - (bfd_size_type) external_reloc_size, abfd); - free (external_reloc_vec); - - /* Fill in section header info. */ - segment_info[idx].scnhdr.s_relptr = *file_cursor; - *file_cursor += external_reloc_size; - segment_info[idx].scnhdr.s_nreloc = nrelocs; - } - else - { - /* No relocs. */ - segment_info[idx].scnhdr.s_relptr = 0; - } - } - } - - /* Set relocation_size field in file headers. */ - H_SET_RELOCATION_SIZE (h, *file_cursor - reloc_start, 0); -} - -/* Run through a frag chain and write out the data to go with it, fill - in the scnhdrs with the info on the file positions. */ - -static void -fill_section (bfd * abfd, - object_headers *h ATTRIBUTE_UNUSED, - unsigned long *file_cursor) +const pseudo_typeS coff_pseudo_table[] = { - unsigned int i; - unsigned int paddr = 0; - - for (i = SEG_E0; i < SEG_UNKNOWN; i++) - { - unsigned int offset = 0; - struct internal_scnhdr *s = &(segment_info[i].scnhdr); - - PROGRESS (1); - - if (s->s_name[0]) - { - fragS *frag = segment_info[i].frchainP->frch_root; - char *buffer = NULL; - - if (s->s_size == 0) - s->s_scnptr = 0; - else - { - buffer = xmalloc (s->s_size); - s->s_scnptr = *file_cursor; - } - know (s->s_paddr == paddr); - - if (streq (s->s_name, ".text")) - s->s_flags |= STYP_TEXT; - else if (streq (s->s_name, ".data")) - s->s_flags |= STYP_DATA; - else if (streq (s->s_name, ".bss")) - { - s->s_scnptr = 0; - s->s_flags |= STYP_BSS; - - /* @@ Should make the i386 and a29k coff targets define - COFF_NOLOAD_PROBLEM, and have only one test here. */ -#ifndef TC_I386 -#ifndef TC_A29K -#ifndef TC_OR32 -#ifndef COFF_NOLOAD_PROBLEM - /* Apparently the SVR3 linker (and exec syscall) and UDI - mondfe progrem are confused by noload sections. */ - s->s_flags |= STYP_NOLOAD; -#endif -#endif -#endif + {"ABORT", s_abort, 0}, + {"appline", obj_coff_ln, 1}, + /* We accept the .bss directive for backward compatibility with + earlier versions of gas. */ + {"bss", obj_coff_bss, 0}, + {"def", obj_coff_def, 0}, + {"dim", obj_coff_dim, 0}, + {"endef", obj_coff_endef, 0}, + {"ident", obj_coff_ident, 0}, + {"line", obj_coff_line, 0}, + {"ln", obj_coff_ln, 0}, + {"scl", obj_coff_scl, 0}, + {"sect", obj_coff_section, 0}, + {"sect.s", obj_coff_section, 0}, + {"section", obj_coff_section, 0}, + {"section.s", obj_coff_section, 0}, + /* FIXME: We ignore the MRI short attribute. */ + {"size", obj_coff_size, 0}, + {"tag", obj_coff_tag, 0}, + {"type", obj_coff_type, 0}, + {"val", obj_coff_val, 0}, + {"version", s_ignore, 0}, + {"loc", obj_coff_loc, 0}, + {"optim", s_ignore, 0}, /* For sun386i cc (?) */ + {"weak", obj_coff_weak, 0}, +#if defined TC_TIC4X + /* The tic4x uses sdef instead of def. */ + {"sdef", obj_coff_def, 0}, #endif - } - else if (streq (s->s_name, ".lit")) - s->s_flags = STYP_LIT | STYP_TEXT; - else if (streq (s->s_name, ".init")) - s->s_flags |= STYP_TEXT; - else if (streq (s->s_name, ".fini")) - s->s_flags |= STYP_TEXT; - else if (strneq (s->s_name, ".comment", 8)) - s->s_flags |= STYP_INFO; - - while (frag) - { - unsigned int fill_size; - - switch (frag->fr_type) - { - case rs_machine_dependent: - if (frag->fr_fix) - { - memcpy (buffer + frag->fr_address, - frag->fr_literal, - (unsigned int) frag->fr_fix); - offset += frag->fr_fix; - } - - break; - case rs_space: - case rs_fill: - case rs_align: - case rs_align_code: - case rs_align_test: - case rs_org: - if (frag->fr_fix) - { - memcpy (buffer + frag->fr_address, - frag->fr_literal, - (unsigned int) frag->fr_fix); - offset += frag->fr_fix; - } - - fill_size = frag->fr_var; - if (fill_size && frag->fr_offset > 0) - { - unsigned int count; - unsigned int off = frag->fr_fix; - - for (count = frag->fr_offset; count; count--) - { - if (fill_size + frag->fr_address + off <= s->s_size) - { - memcpy (buffer + frag->fr_address + off, - frag->fr_literal + frag->fr_fix, - fill_size); - off += fill_size; - offset += fill_size; - } - } - } - break; - case rs_broken_word: - break; - default: - abort (); - } - frag = frag->fr_next; - } - - if (s->s_size != 0) - { - if (s->s_scnptr != 0) - { - bfd_bwrite (buffer, s->s_size, abfd); - *file_cursor += s->s_size; - } - free (buffer); - } - paddr += s->s_size; - } - } -} + {NULL, NULL, 0} +}; + -/* Coff file generation & utilities. */ +/* Support for a COFF emulation. */ static void -coff_header_append (bfd * abfd, object_headers * h) -{ - unsigned int i; - char buffer[1000]; - char buffero[1000]; -#ifdef COFF_LONG_SECTION_NAMES - unsigned long string_size = 4; -#endif - - bfd_seek (abfd, 0, 0); - -#ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER - H_SET_MAGIC_NUMBER (h, COFF_MAGIC); - H_SET_VERSION_STAMP (h, 0); - H_SET_ENTRY_POINT (h, 0); - H_SET_TEXT_START (h, segment_info[SEG_E0].frchainP->frch_root->fr_address); - H_SET_DATA_START (h, segment_info[SEG_E1].frchainP->frch_root->fr_address); - H_SET_SIZEOF_OPTIONAL_HEADER (h, bfd_coff_swap_aouthdr_out (abfd, &h->aouthdr, - buffero)); -#else /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */ - H_SET_SIZEOF_OPTIONAL_HEADER (h, 0); -#endif /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */ - - i = bfd_coff_swap_filehdr_out (abfd, &h->filehdr, buffer); - - bfd_bwrite (buffer, (bfd_size_type) i, abfd); - bfd_bwrite (buffero, (bfd_size_type) H_GET_SIZEOF_OPTIONAL_HEADER (h), abfd); - - for (i = SEG_E0; i < SEG_LAST; i++) - { - if (segment_info[i].scnhdr.s_name[0]) - { - unsigned int size; - -#ifdef COFF_LONG_SECTION_NAMES - /* Support long section names as found in PE. This code - must coordinate with that in write_object_file and - w_strings. */ - if (strlen (segment_info[i].name) > SCNNMLEN) - { - memset (segment_info[i].scnhdr.s_name, 0, SCNNMLEN); - sprintf (segment_info[i].scnhdr.s_name, "/%lu", string_size); - string_size += strlen (segment_info[i].name) + 1; - } -#endif - size = bfd_coff_swap_scnhdr_out (abfd, - &(segment_info[i].scnhdr), - buffer); - if (size == 0) - as_bad (_("bfd_coff_swap_scnhdr_out failed")); - bfd_bwrite (buffer, (bfd_size_type) size, abfd); - } - } -} - -static char * -symbol_to_chars (bfd * abfd, char * where, symbolS * symbolP) -{ - unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux; - unsigned int i; - valueT val; - - /* Turn any symbols with register attributes into abs symbols. */ - if (S_GET_SEGMENT (symbolP) == reg_section) - S_SET_SEGMENT (symbolP, absolute_section); - - /* At the same time, relocate all symbols to their output value. */ -#ifndef TE_PE - val = (segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_paddr - + S_GET_VALUE (symbolP)); -#else - val = S_GET_VALUE (symbolP); -#endif - - S_SET_VALUE (symbolP, val); - - symbolP->sy_symbol.ost_entry.n_value = val; - - where += bfd_coff_swap_sym_out (abfd, &symbolP->sy_symbol.ost_entry, - where); - - for (i = 0; i < numaux; i++) - { - where += bfd_coff_swap_aux_out (abfd, - &symbolP->sy_symbol.ost_auxent[i], - S_GET_DATA_TYPE (symbolP), - S_GET_STORAGE_CLASS (symbolP), - i, numaux, where); - } - - return where; -} - -void -coff_obj_symbol_new_hook (symbolS *symbolP) +coff_pop_insert (void) { - char underscore = 0; /* Symbol has leading _ */ - - /* Effective symbol. */ - /* Store the pointer in the offset. */ - S_SET_ZEROES (symbolP, 0L); - S_SET_DATA_TYPE (symbolP, T_NULL); - S_SET_STORAGE_CLASS (symbolP, 0); - S_SET_NUMBER_AUXILIARY (symbolP, 0); - /* Additional information. */ - symbolP->sy_symbol.ost_flags = 0; - /* Auxiliary entries. */ - memset ((char *) &symbolP->sy_symbol.ost_auxent[0], 0, AUXESZ); - - if (S_IS_STRING (symbolP)) - SF_SET_STRING (symbolP); - if (!underscore && S_IS_LOCAL (symbolP)) - SF_SET_LOCAL (symbolP); + pop_insert (coff_pseudo_table); } static int -c_line_new (symbolS * symbol, long paddr, int line_number, fragS * frag) +coff_separate_stab_sections (void) { - struct lineno_list *new_line = xmalloc (sizeof (* new_line)); - - segment_info_type *s = segment_info + now_seg; - new_line->line.l_lnno = line_number; - - if (line_number == 0) - { - last_line_symbol = symbol; - new_line->line.l_addr.l_symndx = (long) symbol; - } - else - { - new_line->line.l_addr.l_paddr = paddr; - } - - new_line->frag = (char *) frag; - new_line->next = NULL; - - if (s->lineno_list_head == NULL) - s->lineno_list_head = new_line; - else - s->lineno_list_tail->next = new_line; - - s->lineno_list_tail = new_line; - return LINESZ * s->scnhdr.s_nlnno++; + return 1; } -/* Handle .ln directives. */ - -static void -obj_coff_ln (int appline) -{ - int l; - - if (! appline && def_symbol_in_progress != NULL) - { - /* Wrong context. */ - as_warn (_(".ln pseudo-op inside .def/.endef: ignored.")); - demand_empty_rest_of_line (); - return; - } - - l = get_absolute_expression (); - c_line_new (0, frag_now_fix (), l, frag_now); - - if (appline) - new_logical_line ((char *) NULL, l - 1); - -#ifndef NO_LISTING - { - extern int listing; - - if (listing) - { - if (! appline) - l += line_base - 1; - listing_source_line ((unsigned int) l); - } - } -#endif - demand_empty_rest_of_line (); -} - -/* Handle .def directives. - - One might ask : why can't we symbol_new if the symbol does not - already exist and fill it with debug information. Because of - the C_EFCN special symbol. It would clobber the value of the - function symbol before we have a chance to notice that it is - a C_EFCN. And a second reason is that the code is more clear this - way. (at least I think it is :-). */ - -#define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') -#define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ - *input_line_pointer == '\t') \ - input_line_pointer++; - -static void -obj_coff_def (int what ATTRIBUTE_UNUSED) -{ - char name_end; /* Char after the end of name. */ - char *symbol_name; /* Name of the debug symbol. */ - char *symbol_name_copy; /* Temporary copy of the name. */ - unsigned int symbol_name_length; - - if (def_symbol_in_progress != NULL) - { - as_warn (_(".def pseudo-op used inside of .def/.endef: ignored.")); - demand_empty_rest_of_line (); - return; - } - - SKIP_WHITESPACES (); - - def_symbol_in_progress = obstack_alloc (¬es, sizeof (*def_symbol_in_progress)); - memset (def_symbol_in_progress, 0, sizeof (*def_symbol_in_progress)); - - symbol_name = input_line_pointer; - name_end = get_symbol_end (); - symbol_name_length = strlen (symbol_name); - symbol_name_copy = xmalloc (symbol_name_length + 1); - strcpy (symbol_name_copy, symbol_name); -#ifdef tc_canonicalize_symbol_name - symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy); -#endif - - /* Initialize the new symbol. */ - S_SET_NAME (def_symbol_in_progress, symbol_name_copy); - /* free(symbol_name_copy); */ - def_symbol_in_progress->sy_name_offset = (unsigned long) ~0; - def_symbol_in_progress->sy_number = ~0; - def_symbol_in_progress->sy_frag = &zero_address_frag; - S_SET_VALUE (def_symbol_in_progress, 0); - - if (S_IS_STRING (def_symbol_in_progress)) - SF_SET_STRING (def_symbol_in_progress); - - *input_line_pointer = name_end; - - demand_empty_rest_of_line (); -} - -static void -c_symbol_merge (symbolS *debug, symbolS *normal) -{ - S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug)); - S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug)); - - if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal)) - S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug)); - - if (S_GET_NUMBER_AUXILIARY (debug) > 0) - memcpy ((char *) &normal->sy_symbol.ost_auxent[0], - (char *) &debug->sy_symbol.ost_auxent[0], - (unsigned int) (S_GET_NUMBER_AUXILIARY (debug) * AUXESZ)); - - /* Move the debug flags. */ - SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug)); -} - -static unsigned int dim_index; - -static void -obj_coff_endef (int ignore ATTRIBUTE_UNUSED) -{ - symbolS *symbolP = 0; - - dim_index = 0; - if (def_symbol_in_progress == NULL) - { - as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored.")); - demand_empty_rest_of_line (); - return; - } - - /* Set the section number according to storage class. */ - switch (S_GET_STORAGE_CLASS (def_symbol_in_progress)) - { - case C_STRTAG: - case C_ENTAG: - case C_UNTAG: - SF_SET_TAG (def_symbol_in_progress); - /* Fall through. */ - - case C_FILE: - case C_TPDEF: - SF_SET_DEBUG (def_symbol_in_progress); - S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG); - break; - - case C_EFCN: - /* Do not emit this symbol. */ - SF_SET_LOCAL (def_symbol_in_progress); - /* Fall through. */ - - case C_BLOCK: - /* Will need processing before writing. */ - SF_SET_PROCESS (def_symbol_in_progress); - /* Fall through. */ - - case C_FCN: - S_SET_SEGMENT (def_symbol_in_progress, SEG_E0); - - if (streq (S_GET_NAME (def_symbol_in_progress), ".bf")) - { - if (function_lineoff < 0) - fprintf (stderr, _("`.bf' symbol without preceding function\n")); - - SA_GET_SYM_LNNOPTR (last_line_symbol) = function_lineoff; - - SF_SET_PROCESS (last_line_symbol); - SF_SET_ADJ_LNNOPTR (last_line_symbol); - SF_SET_PROCESS (def_symbol_in_progress); - function_lineoff = -1; - } - - /* Value is always set to . */ - def_symbol_in_progress->sy_frag = frag_now; - S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); - break; - -#ifdef C_AUTOARG - case C_AUTOARG: -#endif /* C_AUTOARG */ - case C_AUTO: - case C_REG: - case C_MOS: - case C_MOE: - case C_MOU: - case C_ARG: - case C_REGPARM: - case C_FIELD: - case C_EOS: - SF_SET_DEBUG (def_symbol_in_progress); - S_SET_SEGMENT (def_symbol_in_progress, absolute_section); - break; - - case C_EXT: - case C_WEAKEXT: -#ifdef TE_PE - case C_NT_WEAK: -#endif - case C_STAT: - case C_LABEL: - /* Valid but set somewhere else (s_comm, s_lcomm, colon). */ - break; - - case C_USTATIC: - case C_EXTDEF: - case C_ULABEL: - as_warn (_("unexpected storage class %d"), S_GET_STORAGE_CLASS (def_symbol_in_progress)); - break; - } - - /* Now that we have built a debug symbol, try to find if we should - merge with an existing symbol or not. If a symbol is C_EFCN or - absolute_section or untagged SEG_DEBUG it never merges. We also - don't merge labels, which are in a different namespace, nor - symbols which have not yet been defined since they are typically - unique, nor do we merge tags with non-tags. */ - - /* Two cases for functions. Either debug followed by definition or - definition followed by debug. For definition first, we will - merge the debug symbol into the definition. For debug first, the - lineno entry MUST point to the definition function or else it - will point off into space when crawl_symbols() merges the debug - symbol into the real symbol. Therefor, let's presume the debug - symbol is a real function reference. */ - - /* FIXME-SOON If for some reason the definition label/symbol is - never seen, this will probably leave an undefined symbol at link - time. */ - - if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN - || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL - || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG - && !SF_GET_TAG (def_symbol_in_progress)) - || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section - || def_symbol_in_progress->sy_value.X_op != O_constant - || (symbolP = symbol_find (S_GET_NAME (def_symbol_in_progress))) == NULL - || (SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP))) - { - symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, - &symbol_lastP); - } - else - { - /* This symbol already exists, merge the newly created symbol - into the old one. This is not mandatory. The linker can - handle duplicate symbols correctly. But I guess that it save - a *lot* of space if the assembly file defines a lot of - symbols. [loic] */ - - /* The debug entry (def_symbol_in_progress) is merged into the - previous definition. */ - - c_symbol_merge (def_symbol_in_progress, symbolP); - /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */ - def_symbol_in_progress = symbolP; - - if (SF_GET_FUNCTION (def_symbol_in_progress) - || SF_GET_TAG (def_symbol_in_progress) - || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT) - { - /* For functions, and tags, and static symbols, the symbol - *must* be where the debug symbol appears. Move the - existing symbol to the current place. */ - /* If it already is at the end of the symbol list, do nothing. */ - if (def_symbol_in_progress != symbol_lastP) - { - symbol_remove (def_symbol_in_progress, &symbol_rootP, - &symbol_lastP); - symbol_append (def_symbol_in_progress, symbol_lastP, - &symbol_rootP, &symbol_lastP); - } - } - } - - if (SF_GET_TAG (def_symbol_in_progress)) - { - symbolS *oldtag; - - oldtag = symbol_find (S_GET_NAME (def_symbol_in_progress)); - if (oldtag == NULL || ! SF_GET_TAG (oldtag)) - tag_insert (S_GET_NAME (def_symbol_in_progress), - def_symbol_in_progress); - } - - if (SF_GET_FUNCTION (def_symbol_in_progress)) - { - know (sizeof (def_symbol_in_progress) <= sizeof (long)); - function_lineoff - = c_line_new (def_symbol_in_progress, 0, 0, &zero_address_frag); - - SF_SET_PROCESS (def_symbol_in_progress); - - if (symbolP == NULL) - /* That is, if this is the first time we've seen the function. */ - symbol_table_insert (def_symbol_in_progress); - } - - def_symbol_in_progress = NULL; - demand_empty_rest_of_line (); -} - -static void -obj_coff_dim (int ignore ATTRIBUTE_UNUSED) -{ - int dim_index; - - if (def_symbol_in_progress == NULL) - { - as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored.")); - demand_empty_rest_of_line (); - return; - } - - S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); - - for (dim_index = 0; dim_index < DIMNUM; dim_index++) - { - SKIP_WHITESPACES (); - SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, - get_absolute_expression ()); - - switch (*input_line_pointer) - { - case ',': - input_line_pointer++; - break; - - default: - as_warn (_("badly formed .dim directive ignored")); - /* Fall through. */ - - case '\n': - case ';': - dim_index = DIMNUM; - break; - } - } - - demand_empty_rest_of_line (); -} - -static void -obj_coff_line (int ignore ATTRIBUTE_UNUSED) -{ - int this_base; - const char *name; - - if (def_symbol_in_progress == NULL) - { - obj_coff_ln (0); - return; - } - - name = S_GET_NAME (def_symbol_in_progress); - this_base = get_absolute_expression (); - - /* Only .bf symbols indicate the use of a new base line number; the - line numbers associated with .ef, .bb, .eb are relative to the - start of the containing function. */ - if (streq (".bf", name)) - { - line_base = this_base; - -#ifndef NO_LISTING - { - extern int listing; - if (listing) - listing_source_line ((unsigned int) line_base); - } -#endif - } - - S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); - SA_SET_SYM_LNNO (def_symbol_in_progress, this_base); - - demand_empty_rest_of_line (); -} - -static void -obj_coff_size (int ignore ATTRIBUTE_UNUSED) -{ - if (def_symbol_in_progress == NULL) - { - as_warn (_(".size pseudo-op used outside of .def/.endef ignored.")); - demand_empty_rest_of_line (); - return; - } - - S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); - SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ()); - demand_empty_rest_of_line (); -} - -static void -obj_coff_scl (int ignore ATTRIBUTE_UNUSED) -{ - if (def_symbol_in_progress == NULL) - { - as_warn (_(".scl pseudo-op used outside of .def/.endef ignored.")); - demand_empty_rest_of_line (); - return; - } - - S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ()); - demand_empty_rest_of_line (); -} - -static void -obj_coff_tag (int ignore ATTRIBUTE_UNUSED) -{ - char *symbol_name; - char name_end; - - if (def_symbol_in_progress == NULL) - { - as_warn (_(".tag pseudo-op used outside of .def/.endef ignored.")); - demand_empty_rest_of_line (); - return; - } - - S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); - symbol_name = input_line_pointer; - name_end = get_symbol_end (); -#ifdef tc_canonicalize_symbol_name - symbol_name = tc_canonicalize_symbol_name (symbol_name); -#endif - - /* Assume that the symbol referred to by .tag is always defined. - This was a bad assumption. I've added find_or_make. xoxorich. */ - SA_SET_SYM_TAGNDX (def_symbol_in_progress, - (long) tag_find_or_make (symbol_name)); - if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L) - as_warn (_("tag not found for .tag %s"), symbol_name); - - SF_SET_TAGGED (def_symbol_in_progress); - *input_line_pointer = name_end; - - demand_empty_rest_of_line (); -} - -static void -obj_coff_type (int ignore ATTRIBUTE_UNUSED) -{ - if (def_symbol_in_progress == NULL) - { - as_warn (_(".type pseudo-op used outside of .def/.endef ignored.")); - demand_empty_rest_of_line (); - return; - } - - S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ()); - - if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) && - S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF) - SF_SET_FUNCTION (def_symbol_in_progress); - - demand_empty_rest_of_line (); -} - -static void -obj_coff_val (int ignore ATTRIBUTE_UNUSED) -{ - if (def_symbol_in_progress == NULL) - { - as_warn (_(".val pseudo-op used outside of .def/.endef ignored.")); - demand_empty_rest_of_line (); - return; - } - - if (is_name_beginner (*input_line_pointer)) - { - char *symbol_name = input_line_pointer; - char name_end = get_symbol_end (); - -#ifdef tc_canonicalize_symbol_name - symbol_name = tc_canonicalize_symbol_name (symbol_name); -#endif - - if (streq (symbol_name, ".")) - { - def_symbol_in_progress->sy_frag = frag_now; - S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); - /* If the .val is != from the .def (e.g. statics). */ - } - else if (! streq (S_GET_NAME (def_symbol_in_progress), symbol_name)) - { - def_symbol_in_progress->sy_value.X_op = O_symbol; - def_symbol_in_progress->sy_value.X_add_symbol = - symbol_find_or_make (symbol_name); - def_symbol_in_progress->sy_value.X_op_symbol = NULL; - def_symbol_in_progress->sy_value.X_add_number = 0; - - /* If the segment is undefined when the forward reference is - resolved, then copy the segment id from the forward - symbol. */ - SF_SET_GET_SEGMENT (def_symbol_in_progress); - - /* FIXME: gcc can generate address expressions here in - unusual cases (search for "obscure" in sdbout.c). We - just ignore the offset here, thus generating incorrect - debugging information. We ignore the rest of the line - just below. */ - } - /* Otherwise, it is the name of a non debug symbol and - its value will be calculated later. */ - *input_line_pointer = name_end; - - /* FIXME: this is to avoid an error message in the - FIXME case mentioned just above. */ - while (! is_end_of_line[(unsigned char) *input_line_pointer]) - ++input_line_pointer; - } - else - { - S_SET_VALUE (def_symbol_in_progress, - (valueT) get_absolute_expression ()); - } - - demand_empty_rest_of_line (); -} - -#ifdef TE_PE - -/* Handle the .linkonce pseudo-op. This is parsed by s_linkonce in - read.c, which then calls this object file format specific routine. */ - -void -obj_coff_pe_handle_link_once (enum linkonce_type type) -{ - seg_info (now_seg)->scnhdr.s_flags |= IMAGE_SCN_LNK_COMDAT; - - /* We store the type in the seg_info structure, and use it to set up - the auxiliary entry for the section symbol in c_section_symbol. */ - seg_info (now_seg)->linkonce = type; -} - -#endif /* TE_PE */ - -void -coff_obj_read_begin_hook (void) -{ - /* These had better be the same. Usually 18 bytes. */ -#ifndef BFD_HEADERS - know (sizeof (SYMENT) == sizeof (AUXENT)); - know (SYMESZ == AUXESZ); -#endif - tag_init (); -} - -/* This function runs through the symbol table and puts all the - externals onto another chain. */ - -/* The chain of globals. */ -symbolS *symbol_globalP; -symbolS *symbol_global_lastP; - -/* The chain of externals. */ -symbolS *symbol_externP; -symbolS *symbol_extern_lastP; - -stack *block_stack; -symbolS *last_functionP; -static symbolS *last_bfP; -symbolS *last_tagP; - -static unsigned int -yank_symbols (void) -{ - symbolS *symbolP; - unsigned int symbol_number = 0; - unsigned int last_file_symno = 0; - struct filename_list *filename_list_scan = filename_list_head; - - for (symbolP = symbol_rootP; - symbolP; - symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP) - { - if (symbolP->sy_mri_common) - { - if (S_GET_STORAGE_CLASS (symbolP) == C_EXT -#ifdef TE_PE - || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK -#endif - || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT) - as_bad (_("%s: global symbols not supported in common sections"), - S_GET_NAME (symbolP)); - symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); - continue; - } - - if (!SF_GET_DEBUG (symbolP)) - { - /* Debug symbols do not need all this rubbish. */ - symbolS *real_symbolP; - - /* L* and C_EFCN symbols never merge. */ - if (!SF_GET_LOCAL (symbolP) - && !SF_GET_STATICS (symbolP) - && S_GET_STORAGE_CLASS (symbolP) != C_LABEL - && symbolP->sy_value.X_op == O_constant - && (real_symbolP = symbol_find (S_GET_NAME (symbolP))) - && real_symbolP != symbolP) - { - /* FIXME-SOON: where do dups come from? - Maybe tag references before definitions? xoxorich. */ - /* Move the debug data from the debug symbol to the - real symbol. Do NOT do the opposite (i.e. move from - real symbol to debug symbol and remove real symbol from the - list.) Because some pointers refer to the real symbol - whereas no pointers refer to the debug symbol. */ - c_symbol_merge (symbolP, real_symbolP); - /* Replace the current symbol by the real one. */ - /* The symbols will never be the last or the first - because : 1st symbol is .file and 3 last symbols are - .text, .data, .bss. */ - symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP); - symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP); - symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); - symbolP = real_symbolP; - } - - if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_E1)) - S_SET_SEGMENT (symbolP, SEG_E0); - - resolve_symbol_value (symbolP); - - if (S_GET_STORAGE_CLASS (symbolP) == C_NULL) - { - if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP)) - S_SET_EXTERNAL (symbolP); - - else if (S_GET_SEGMENT (symbolP) == SEG_E0) - S_SET_STORAGE_CLASS (symbolP, C_LABEL); - - else - S_SET_STORAGE_CLASS (symbolP, C_STAT); - } - - /* Mainly to speed up if not -g. */ - if (SF_GET_PROCESS (symbolP)) - { - /* Handle the nested blocks auxiliary info. */ - if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK) - { - if (streq (S_GET_NAME (symbolP), ".bb")) - stack_push (block_stack, (char *) &symbolP); - else - { - /* .eb */ - symbolS *begin_symbolP; - - begin_symbolP = *(symbolS **) stack_pop (block_stack); - if (begin_symbolP == NULL) - as_warn (_("mismatched .eb")); - else - SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2); - } - } - - /* If we are able to identify the type of a function, and we - are out of a function (last_functionP == 0) then, the - function symbol will be associated with an auxiliary - entry. */ - if (last_functionP == NULL && SF_GET_FUNCTION (symbolP)) - { - last_functionP = symbolP; - - if (S_GET_NUMBER_AUXILIARY (symbolP) < 1) - S_SET_NUMBER_AUXILIARY (symbolP, 1); - } - - if (S_GET_STORAGE_CLASS (symbolP) == C_FCN) - { - if (streq (S_GET_NAME (symbolP), ".bf")) - { - if (last_bfP != NULL) - SA_SET_SYM_ENDNDX (last_bfP, symbol_number); - last_bfP = symbolP; - } - } - else if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN) - { - /* I don't even know if this is needed for sdb. But - the standard assembler generates it, so... */ - if (last_functionP == NULL) - as_fatal (_("C_EFCN symbol out of scope")); - SA_SET_SYM_FSIZE (last_functionP, - (long) (S_GET_VALUE (symbolP) - - S_GET_VALUE (last_functionP))); - SA_SET_SYM_ENDNDX (last_functionP, symbol_number); - last_functionP = NULL; - } - } - } - else if (SF_GET_TAG (symbolP)) - /* First descriptor of a structure must point to - the first slot after the structure description. */ - last_tagP = symbolP; - - else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS) - /* +2 take in account the current symbol. */ - SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2); - - else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE) - { - /* If the filename was too long to fit in the - auxent, put it in the string table. */ - if (SA_GET_FILE_FNAME_ZEROS (symbolP) == 0 - && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0) - { - SA_SET_FILE_FNAME_OFFSET (symbolP, string_byte_count); - string_byte_count += strlen (filename_list_scan->filename) + 1; - filename_list_scan = filename_list_scan->next; - } - if (S_GET_VALUE (symbolP)) - { - S_SET_VALUE (symbolP, last_file_symno); - last_file_symno = symbol_number; - } - } - -#ifdef tc_frob_coff_symbol - tc_frob_coff_symbol (symbolP); -#endif - - /* We must put the external symbols apart. The loader - does not bomb if we do not. But the references in - the endndx field for a .bb symbol are not corrected - if an external symbol is removed between .bb and .be. - I.e in the following case : - [20] .bb endndx = 22 - [21] foo external - [22] .be - ld will move the symbol 21 to the end of the list but - endndx will still be 22 instead of 21. */ - - if (SF_GET_LOCAL (symbolP)) - /* Remove C_EFCN and LOCAL (L...) symbols. */ - /* Next pointer remains valid. */ - symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); - - else if (symbolP->sy_value.X_op == O_symbol - && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP))) - /* Skip symbols which were equated to undefined or common - symbols. */ - symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); - - else if (!S_IS_DEFINED (symbolP) - && !S_IS_DEBUG (symbolP) - && !SF_GET_STATICS (symbolP) - && (S_GET_STORAGE_CLASS (symbolP) == C_EXT -#ifdef TE_PE - || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK -#endif - || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT)) - { - /* If external, Remove from the list. */ - symbolS *hold = symbol_previous (symbolP); - - symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); - symbol_clear_list_pointers (symbolP); - symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP); - symbolP = hold; - } - else if (! S_IS_DEBUG (symbolP) - && ! SF_GET_STATICS (symbolP) - && ! SF_GET_FUNCTION (symbolP) - && (S_GET_STORAGE_CLASS (symbolP) == C_EXT -#ifdef TE_PE - || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK -#endif - || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK)) - { - symbolS *hold = symbol_previous (symbolP); - - /* The O'Reilly COFF book says that defined global symbols - come at the end of the symbol table, just before - undefined global symbols. */ - symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); - symbol_clear_list_pointers (symbolP); - symbol_append (symbolP, symbol_global_lastP, &symbol_globalP, - &symbol_global_lastP); - symbolP = hold; - } - else - { - if (SF_GET_STRING (symbolP)) - { - symbolP->sy_name_offset = string_byte_count; - string_byte_count += strlen (S_GET_NAME (symbolP)) + 1; - } - else - symbolP->sy_name_offset = 0; - - symbolP->sy_number = symbol_number; - symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP); - } - } - - return symbol_number; -} - -static unsigned int -glue_symbols (symbolS **head, symbolS **tail) -{ - unsigned int symbol_number = 0; - - while (*head != NULL) - { - symbolS *tmp = *head; - - /* Append. */ - symbol_remove (tmp, head, tail); - symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP); - - /* Process. */ - if (SF_GET_STRING (tmp)) - { - tmp->sy_name_offset = string_byte_count; - string_byte_count += strlen (S_GET_NAME (tmp)) + 1; - } - else - /* Fix "long" names. */ - tmp->sy_name_offset = 0; - - tmp->sy_number = symbol_number; - symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp); - } - - return symbol_number; -} - -static unsigned int -tie_tags (void) -{ - unsigned int symbol_number = 0; - symbolS *symbolP; - - for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) - { - symbolP->sy_number = symbol_number; - - if (SF_GET_TAGGED (symbolP)) - { - SA_SET_SYM_TAGNDX - (symbolP, - ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number); - } - - symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP); - } - - return symbol_number; -} - - -/* Build a 'section static' symbol. */ - -static symbolS * -c_section_symbol (char *name, int idx) -{ - symbolS *symbolP; - - symbolP = symbol_find (name); - if (symbolP == NULL) - symbolP = symbol_new (name, idx, 0, &zero_address_frag); - else - { - /* Mmmm. I just love violating interfaces. Makes me feel...dirty. */ - S_SET_SEGMENT (symbolP, idx); - symbolP->sy_frag = &zero_address_frag; - } - - S_SET_STORAGE_CLASS (symbolP, C_STAT); - S_SET_NUMBER_AUXILIARY (symbolP, 1); - - SF_SET_STATICS (symbolP); - -#ifdef TE_DELTA - /* manfred@s-direktnet.de: section symbols *must* have the LOCAL bit cleared, - which is set by the new definition of LOCAL_LABEL in tc-m68k.h. */ - SF_CLEAR_LOCAL (symbolP); -#endif -#ifdef TE_PE - /* If the .linkonce pseudo-op was used for this section, we must - store the information in the auxiliary entry for the section - symbol. */ - if (segment_info[idx].linkonce != LINKONCE_UNSET) - { - int type; - - switch (segment_info[idx].linkonce) - { - default: - abort (); - case LINKONCE_DISCARD: - type = IMAGE_COMDAT_SELECT_ANY; - break; - case LINKONCE_ONE_ONLY: - type = IMAGE_COMDAT_SELECT_NODUPLICATES; - break; - case LINKONCE_SAME_SIZE: - type = IMAGE_COMDAT_SELECT_SAME_SIZE; - break; - case LINKONCE_SAME_CONTENTS: - type = IMAGE_COMDAT_SELECT_EXACT_MATCH; - break; - } - - SYM_AUXENT (symbolP)->x_scn.x_comdat = type; - } -#endif /* TE_PE */ - - return symbolP; -} - -static void -crawl_symbols (object_headers *h, bfd *abfd ATTRIBUTE_UNUSED) -{ - unsigned int i; - - /* Initialize the stack used to keep track of the matching .bb .be. */ - block_stack = stack_init (512, sizeof (symbolS *)); - - /* The symbol list should be ordered according to the following sequence - order : - . .file symbol - . debug entries for functions - . fake symbols for the sections, including .text .data and .bss - . defined symbols - . undefined symbols - But this is not mandatory. The only important point is to put the - undefined symbols at the end of the list. */ - - /* Is there a .file symbol ? If not insert one at the beginning. */ - if (symbol_rootP == NULL - || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) - c_dot_file_symbol ("fake", 0); - - /* Build up static symbols for the sections, they are filled in later. */ - for (i = SEG_E0; i < SEG_LAST; i++) - if (segment_info[i].scnhdr.s_name[0]) - segment_info[i].dot = c_section_symbol ((char *) segment_info[i].name, - i - SEG_E0 + 1); - - /* Take all the externals out and put them into another chain. */ - H_SET_SYMBOL_TABLE_SIZE (h, yank_symbols ()); - /* Take the externals and glue them onto the end. */ - H_SET_SYMBOL_TABLE_SIZE (h, - (H_GET_SYMBOL_COUNT (h) - + glue_symbols (&symbol_globalP, - &symbol_global_lastP) - + glue_symbols (&symbol_externP, - &symbol_extern_lastP))); - - H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ()); - know (symbol_globalP == NULL); - know (symbol_global_lastP == NULL); - know (symbol_externP == NULL); - know (symbol_extern_lastP == NULL); -} - -/* Find strings by crawling along symbol table chain. */ - -static void -w_strings (char *where) -{ - symbolS *symbolP; - struct filename_list *filename_list_scan = filename_list_head; - - /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK. */ - md_number_to_chars (where, (valueT) string_byte_count, 4); - where += 4; - -#ifdef COFF_LONG_SECTION_NAMES - /* Support long section names as found in PE. This code must - coordinate with that in coff_header_append and write_object_file. */ - { - unsigned int i; - - for (i = SEG_E0; i < SEG_LAST; i++) - { - if (segment_info[i].scnhdr.s_name[0] - && strlen (segment_info[i].name) > SCNNMLEN) - { - unsigned int size; - - size = strlen (segment_info[i].name) + 1; - memcpy (where, segment_info[i].name, size); - where += size; - } - } - } -#endif /* COFF_LONG_SECTION_NAMES */ - - for (symbolP = symbol_rootP; - symbolP; - symbolP = symbol_next (symbolP)) - { - unsigned int size; - - if (SF_GET_STRING (symbolP)) - { - size = strlen (S_GET_NAME (symbolP)) + 1; - memcpy (where, S_GET_NAME (symbolP), size); - where += size; - } - if (S_GET_STORAGE_CLASS (symbolP) == C_FILE - && SA_GET_FILE_FNAME_ZEROS (symbolP) == 0 - && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0) - { - size = strlen (filename_list_scan->filename) + 1; - memcpy (where, filename_list_scan->filename, size); - filename_list_scan = filename_list_scan ->next; - where += size; - } - } -} - -static void -do_linenos_for (bfd * abfd, - object_headers * h, - unsigned long *file_cursor) -{ - unsigned int idx; - unsigned long start = *file_cursor; - - for (idx = SEG_E0; idx < SEG_LAST; idx++) - { - segment_info_type *s = segment_info + idx; - - if (s->scnhdr.s_nlnno != 0) - { - struct lineno_list *line_ptr; - struct external_lineno *buffer = xmalloc (s->scnhdr.s_nlnno * LINESZ); - struct external_lineno *dst = buffer; - - /* Run through the table we've built and turn it into its external - form, take this chance to remove duplicates. */ - - for (line_ptr = s->lineno_list_head; - line_ptr != (struct lineno_list *) NULL; - line_ptr = line_ptr->next) - { - if (line_ptr->line.l_lnno == 0) - { - /* Turn a pointer to a symbol into the symbols' index, - provided that it has been initialised. */ - if (line_ptr->line.l_addr.l_symndx) - line_ptr->line.l_addr.l_symndx = - ((symbolS *) line_ptr->line.l_addr.l_symndx)->sy_number; - } - else - line_ptr->line.l_addr.l_paddr += ((struct frag *) (line_ptr->frag))->fr_address; - - (void) bfd_coff_swap_lineno_out (abfd, &(line_ptr->line), dst); - dst++; - } - - s->scnhdr.s_lnnoptr = *file_cursor; - - bfd_bwrite (buffer, (bfd_size_type) s->scnhdr.s_nlnno * LINESZ, abfd); - free (buffer); - - *file_cursor += s->scnhdr.s_nlnno * LINESZ; - } - } - - H_SET_LINENO_SIZE (h, *file_cursor - start); -} - -/* Now we run through the list of frag chains in a segment and - make all the subsegment frags appear at the end of the - list, as if the seg 0 was extra long. */ - -static void -remove_subsegs (void) -{ - unsigned int i; - - for (i = SEG_E0; i < SEG_UNKNOWN; i++) - { - frchainS *head = segment_info[i].frchainP; - fragS dummy; - fragS *prev_frag = &dummy; - - while (head && head->frch_seg == i) - { - prev_frag->fr_next = head->frch_root; - prev_frag = head->frch_last; - head = head->frch_next; - } - prev_frag->fr_next = 0; - } -} - -unsigned long machine; -int coff_flags; - -#ifndef SUB_SEGMENT_ALIGN -#ifdef HANDLE_ALIGN -/* The last subsegment gets an alignment corresponding to the alignment - of the section. This allows proper nop-filling at the end of - code-bearing sections. */ -#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \ - (!(FRCHAIN)->frch_next || (FRCHAIN)->frch_next->frch_seg != (SEG) \ - ? get_recorded_alignment (SEG) : 0) -#else -#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 1 -#endif -#endif - -static void -w_symbols (bfd * abfd, char *where, symbolS * symbol_rootP) -{ - symbolS *symbolP; - unsigned int i; - - /* First fill in those values we have only just worked out. */ - for (i = SEG_E0; i < SEG_LAST; i++) - { - symbolP = segment_info[i].dot; - if (symbolP) - { - SA_SET_SCN_SCNLEN (symbolP, segment_info[i].scnhdr.s_size); - SA_SET_SCN_NRELOC (symbolP, segment_info[i].scnhdr.s_nreloc); - SA_SET_SCN_NLINNO (symbolP, segment_info[i].scnhdr.s_nlnno); - } - } - - /* Emit all symbols left in the symbol chain. */ - for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) - { - /* Used to save the offset of the name. It is used to point - to the string in memory but must be a file offset. */ - char *temp; - - /* We can't fix the lnnoptr field in yank_symbols with the other - adjustments, because we have to wait until we know where they - go in the file. */ - if (SF_GET_ADJ_LNNOPTR (symbolP)) - SA_GET_SYM_LNNOPTR (symbolP) += - segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_lnnoptr; - - tc_coff_symbol_emit_hook (symbolP); - - temp = S_GET_NAME (symbolP); - if (SF_GET_STRING (symbolP)) - { - S_SET_OFFSET (symbolP, symbolP->sy_name_offset); - S_SET_ZEROES (symbolP, 0); - } - else - { - memset (symbolP->sy_symbol.ost_entry.n_name, 0, SYMNMLEN); - strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN); - } - where = symbol_to_chars (abfd, where, symbolP); - S_SET_NAME (symbolP, temp); - } -} - -static void -fixup_mdeps (fragS *frags, - object_headers *h ATTRIBUTE_UNUSED, - segT this_segment) -{ - subseg_change (this_segment, 0); - - while (frags) - { - switch (frags->fr_type) - { - case rs_align: - case rs_align_code: - case rs_align_test: - case rs_org: -#ifdef HANDLE_ALIGN - HANDLE_ALIGN (frags); -#endif - frags->fr_type = rs_fill; - frags->fr_offset = - ((frags->fr_next->fr_address - frags->fr_address - frags->fr_fix) - / frags->fr_var); - break; - case rs_machine_dependent: - md_convert_frag (h, this_segment, frags); - frag_wane (frags); - break; - default: - ; - } - frags = frags->fr_next; - } -} - -#ifndef TC_FORCE_RELOCATION -#define TC_FORCE_RELOCATION(fix) 0 -#endif - -static void -fixup_segment (segment_info_type * segP, segT this_segment_type) -{ - fixS * fixP; - symbolS *add_symbolP; - symbolS *sub_symbolP; - long add_number; - int size; - char *place; - long where; - char pcrel; - fragS *fragP; - segT add_symbol_segment = absolute_section; - - for (fixP = segP->fix_root; fixP; fixP = fixP->fx_next) - { - fragP = fixP->fx_frag; - know (fragP); - where = fixP->fx_where; - place = fragP->fr_literal + where; - size = fixP->fx_size; - add_symbolP = fixP->fx_addsy; - sub_symbolP = fixP->fx_subsy; - add_number = fixP->fx_offset; - pcrel = fixP->fx_pcrel; - - /* We want function-relative stabs to work on systems which - may use a relaxing linker; thus we must handle the sym1-sym2 - fixups function-relative stabs generates. - - Of course, if you actually enable relaxing in the linker, the - line and block scoping information is going to be incorrect - in some cases. The only way to really fix this is to support - a reloc involving the difference of two symbols. */ - if (linkrelax - && (!sub_symbolP || pcrel)) - continue; - -#ifdef TC_I960 - if (fixP->fx_tcbit && SF_GET_CALLNAME (add_symbolP)) - { - /* Relocation should be done via the associated 'bal' entry - point symbol. */ - if (!SF_GET_BALNAME (tc_get_bal_of_call (add_symbolP))) - { - as_bad_where (fixP->fx_file, fixP->fx_line, - _("No 'bal' entry point for leafproc %s"), - S_GET_NAME (add_symbolP)); - continue; - } - fixP->fx_addsy = add_symbolP = tc_get_bal_of_call (add_symbolP); - } -#endif - - /* Make sure the symbols have been resolved; this may not have - happened if these are expression symbols. */ - if (add_symbolP != NULL && ! add_symbolP->sy_resolved) - resolve_symbol_value (add_symbolP); - - if (add_symbolP != NULL) - { - /* If this fixup is against a symbol which has been equated - to another symbol, convert it to the other symbol. */ - if (add_symbolP->sy_value.X_op == O_symbol - && (! S_IS_DEFINED (add_symbolP) - || S_IS_COMMON (add_symbolP))) - { - while (add_symbolP->sy_value.X_op == O_symbol - && (! S_IS_DEFINED (add_symbolP) - || S_IS_COMMON (add_symbolP))) - { - symbolS *n; - - /* We must avoid looping, as that can occur with a - badly written program. */ - n = add_symbolP->sy_value.X_add_symbol; - if (n == add_symbolP) - break; - add_number += add_symbolP->sy_value.X_add_number; - add_symbolP = n; - } - fixP->fx_addsy = add_symbolP; - fixP->fx_offset = add_number; - } - } - - if (sub_symbolP != NULL && ! sub_symbolP->sy_resolved) - resolve_symbol_value (sub_symbolP); - - if (add_symbolP != NULL - && add_symbolP->sy_mri_common) - { - add_number += S_GET_VALUE (add_symbolP); - fixP->fx_offset = add_number; - add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol; - } - - if (add_symbolP) - add_symbol_segment = S_GET_SEGMENT (add_symbolP); - - if (sub_symbolP) - { - if (add_symbolP == NULL || add_symbol_segment == absolute_section) - { - if (add_symbolP != NULL) - { - add_number += S_GET_VALUE (add_symbolP); - add_symbolP = NULL; - fixP->fx_addsy = NULL; - } - - /* It's just -sym. */ - if (S_GET_SEGMENT (sub_symbolP) == absolute_section) - { - add_number -= S_GET_VALUE (sub_symbolP); - fixP->fx_subsy = 0; - fixP->fx_done = 1; - } - else - { -#ifndef TC_M68K - as_bad_where (fixP->fx_file, fixP->fx_line, - _("Negative of non-absolute symbol %s"), - S_GET_NAME (sub_symbolP)); -#endif - add_number -= S_GET_VALUE (sub_symbolP); - } /* not absolute */ - - /* If sub_symbol is in the same segment that add_symbol - and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE. */ - } - else if (S_GET_SEGMENT (sub_symbolP) == add_symbol_segment - && SEG_NORMAL (add_symbol_segment)) - { - /* Difference of 2 symbols from same segment. Can't - make difference of 2 undefineds: 'value' means - something different for N_UNDF. */ -#ifdef TC_I960 - /* Makes no sense to use the difference of 2 arbitrary symbols - as the target of a call instruction. */ - if (fixP->fx_tcbit) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("callj to difference of 2 symbols")); -#endif /* TC_I960 */ - add_number += S_GET_VALUE (add_symbolP) - - S_GET_VALUE (sub_symbolP); - add_symbolP = NULL; - - if (!TC_FORCE_RELOCATION (fixP)) - { - fixP->fx_addsy = NULL; - fixP->fx_subsy = NULL; - fixP->fx_done = 1; -#ifdef TC_M68K /* FIXME: Is this right? */ - pcrel = 0; - fixP->fx_pcrel = 0; -#endif - } - } - else - { - /* Different segments in subtraction. */ - know (!(S_IS_EXTERNAL (sub_symbolP) && (S_GET_SEGMENT (sub_symbolP) == absolute_section))); - - if ((S_GET_SEGMENT (sub_symbolP) == absolute_section)) - add_number -= S_GET_VALUE (sub_symbolP); - -#ifdef DIFF_EXPR_OK - else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type) - { - /* Make it pc-relative. */ - add_number += (md_pcrel_from (fixP) - - S_GET_VALUE (sub_symbolP)); - pcrel = 1; - fixP->fx_pcrel = 1; - sub_symbolP = 0; - fixP->fx_subsy = 0; - } -#endif - else - { - as_bad_where (fixP->fx_file, fixP->fx_line, - _("Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %ld."), - segment_name (S_GET_SEGMENT (sub_symbolP)), - S_GET_NAME (sub_symbolP), - (long) (fragP->fr_address + where)); - } - } - } - - if (add_symbolP) - { - if (add_symbol_segment == this_segment_type && pcrel) - { - /* This fixup was made when the symbol's segment was - SEG_UNKNOWN, but it is now in the local segment. - So we know how to do the address without relocation. */ -#ifdef TC_I960 - /* reloc_callj() may replace a 'call' with a 'calls' or a 'bal', - in which cases it modifies *fixP as appropriate. In the case - of a 'calls', no further work is required, and *fixP has been - set up to make the rest of the code below a no-op. */ - reloc_callj (fixP); -#endif - - add_number += S_GET_VALUE (add_symbolP); - add_number -= md_pcrel_from (fixP); - - /* We used to do - add_number -= segP->scnhdr.s_vaddr; - if defined (TC_I386) || defined (TE_LYNX). I now - think that was an error propagated from the case when - we are going to emit the relocation. If we are not - going to emit the relocation, then we just want to - set add_number to the difference between the symbols. - This is a case that would only arise when there is a - PC relative reference from a section other than .text - to a symbol defined in the same section, and the - reference is not relaxed. Since jump instructions on - the i386 are relaxed, this could only arise with a - call instruction. */ - - /* Lie. Don't want further pcrel processing. */ - pcrel = 0; - if (!TC_FORCE_RELOCATION (fixP)) - { - fixP->fx_addsy = NULL; - fixP->fx_done = 1; - } - } - else - { - switch (add_symbol_segment) - { - case absolute_section: -#ifdef TC_I960 - /* See comment about reloc_callj() above. */ - reloc_callj (fixP); -#endif /* TC_I960 */ - add_number += S_GET_VALUE (add_symbolP); - add_symbolP = NULL; - - if (!TC_FORCE_RELOCATION (fixP)) - { - fixP->fx_addsy = NULL; - fixP->fx_done = 1; - } - break; - default: - -#if defined(TC_A29K) || (defined(TE_PE) && defined(TC_I386)) || defined(TC_M88K) || defined(TC_OR32) - /* This really should be handled in the linker, but - backward compatibility forbids. */ - add_number += S_GET_VALUE (add_symbolP); -#else - add_number += S_GET_VALUE (add_symbolP) + - segment_info[S_GET_SEGMENT (add_symbolP)].scnhdr.s_paddr; -#endif - break; - - case SEG_UNKNOWN: -#ifdef TC_I960 - if ((int) fixP->fx_bit_fixP == 13) - { - /* This is a COBR instruction. They have only a - 13-bit displacement and are only to be used - for local branches: flag as error, don't generate - relocation. */ - as_bad_where (fixP->fx_file, fixP->fx_line, - _("can't use COBR format with external label")); - fixP->fx_addsy = NULL; - fixP->fx_done = 1; - continue; - } -#endif /* TC_I960 */ -#if ((defined (TC_I386) || defined (TE_LYNX) || defined (TE_AUX)) && !defined(TE_PE)) || defined (COFF_COMMON_ADDEND) - /* 386 COFF uses a peculiar format in which the - value of a common symbol is stored in the .text - segment (I've checked this on SVR3.2 and SCO - 3.2.2) Ian Taylor . */ - /* This is also true for 68k COFF on sysv machines - (Checked on Motorola sysv68 R3V6 and R3V7.1, and also on - UNIX System V/M68000, Release 1.0 from ATT/Bell Labs) - Philippe De Muyter . */ - if (S_IS_COMMON (add_symbolP)) - add_number += S_GET_VALUE (add_symbolP); -#endif - break; - - } - } - } - - if (pcrel) - { -#if !defined(TC_M88K) && !(defined(TE_PE) && defined(TC_I386)) && !defined(TC_A29K) && !defined(TC_OR32) - /* This adjustment is not correct on the m88k, for which the - linker does all the computation. */ - add_number -= md_pcrel_from (fixP); -#endif - if (add_symbolP == 0) - fixP->fx_addsy = &abs_symbol; -#if defined (TC_I386) || defined (TE_LYNX) || defined (TC_I960) || defined (TC_M68K) - /* On the 386 we must adjust by the segment vaddr as well. - Ian Taylor. - - I changed the i960 to work this way as well. This is - compatible with the current GNU linker behaviour. I do - not know what other i960 COFF assemblers do. This is not - a common case: normally, only assembler code will contain - a PC relative reloc, and only branches which do not - originate in the .text section will have a non-zero - address. - - I changed the m68k to work this way as well. This will - break existing PC relative relocs from sections which do - not start at address 0, but it will make ld -r work. - Ian Taylor, 4 Oct 96. */ - - add_number -= segP->scnhdr.s_vaddr; -#endif - } - - md_apply_fix (fixP, (valueT *) & add_number, this_segment_type); - - if (!fixP->fx_bit_fixP && ! fixP->fx_no_overflow) - { -#ifndef TC_M88K - /* The m88k uses the offset field of the reloc to get around - this problem. */ - if ((size == 1 - && ((add_number & ~0xFF) - || (fixP->fx_signed && (add_number & 0x80))) - && ((add_number & ~0xFF) != (-1 & ~0xFF) - || (add_number & 0x80) == 0)) - || (size == 2 - && ((add_number & ~0xFFFF) - || (fixP->fx_signed && (add_number & 0x8000))) - && ((add_number & ~0xFFFF) != (-1 & ~0xFFFF) - || (add_number & 0x8000) == 0))) - { - as_bad_where (fixP->fx_file, fixP->fx_line, - _("Value of %ld too large for field of %d bytes at 0x%lx"), - (long) add_number, size, - (unsigned long) (fragP->fr_address + where)); - } -#endif -#ifdef WARN_SIGNED_OVERFLOW_WORD - /* Warn if a .word value is too large when treated as a - signed number. We already know it is not too negative. - This is to catch over-large switches generated by gcc on - the 68k. */ - if (!flag_signed_overflow_ok - && size == 2 - && add_number > 0x7fff) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("Signed .word overflow; switch may be too large; %ld at 0x%lx"), - (long) add_number, - (unsigned long) (fragP->fr_address + where)); -#endif - } - } -} - -/* Fill in the counts in the first entry in a .stab section. */ - -static void -adjust_stab_section (bfd *abfd, segT seg) -{ - segT stabstrseg = SEG_UNKNOWN; - const char *secname, *name2; - char *name; - char *p = NULL; - int i, strsz = 0, nsyms; - fragS *frag = segment_info[seg].frchainP->frch_root; - - /* Look for the associated string table section. */ - - secname = segment_info[seg].name; - name = alloca (strlen (secname) + 4); - strcpy (name, secname); - strcat (name, "str"); - - for (i = SEG_E0; i < SEG_UNKNOWN; i++) - { - name2 = segment_info[i].name; - if (name2 != NULL && strneq (name2, name, 8)) - { - stabstrseg = i; - break; - } - } - - /* If we found the section, get its size. */ - if (stabstrseg != SEG_UNKNOWN) - strsz = size_section (abfd, stabstrseg); - - nsyms = size_section (abfd, seg) / 12 - 1; - - /* Look for the first frag of sufficient size for the initial stab - symbol, and collect a pointer to it. */ - while (frag && frag->fr_fix < 12) - frag = frag->fr_next; - assert (frag != 0); - p = frag->fr_literal; - assert (p != 0); - - /* Write in the number of stab symbols and the size of the string - table. */ - bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6); - bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8); -} - -void -write_object_file (void) -{ - int i; - const char *name; - struct frchain *frchain_ptr; - object_headers headers; - unsigned long file_cursor; - bfd *abfd; - unsigned int addr; - abfd = bfd_openw (out_file_name, TARGET_FORMAT); - - if (abfd == 0) - { - as_perror (_("FATAL: Can't create %s"), out_file_name); - exit (EXIT_FAILURE); - } - bfd_set_format (abfd, bfd_object); - bfd_set_arch_mach (abfd, BFD_ARCH, machine); - - string_byte_count = 4; - - /* Run through all the sub-segments and align them up. Also - close any open frags. We tack a .fill onto the end of the - frag chain so that any .align's size can be worked by looking - at the next frag. */ - for (frchain_ptr = frchain_root; - frchain_ptr != (struct frchain *) NULL; - frchain_ptr = frchain_ptr->frch_next) - { - int alignment; - - subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg); - - alignment = SUB_SEGMENT_ALIGN (now_seg, frchain_ptr); - -#ifdef md_do_align - md_do_align (alignment, NULL, 0, 0, alignment_done); -#endif - if (subseg_text_p (now_seg)) - frag_align_code (alignment, 0); - else - frag_align (alignment, 0, 0); - -#ifdef md_do_align - alignment_done: -#endif - - frag_wane (frag_now); - frag_now->fr_fix = 0; - know (frag_now->fr_next == NULL); - } - - remove_subsegs (); - - for (i = SEG_E0; i < SEG_UNKNOWN; i++) - relax_segment (segment_info[i].frchainP->frch_root, i); - - /* Relaxation has completed. Freeze all syms. */ - finalize_syms = 1; - - H_SET_NUMBER_OF_SECTIONS (&headers, 0); - - /* Find out how big the sections are, and set the addresses. */ - addr = 0; - for (i = SEG_E0; i < SEG_UNKNOWN; i++) - { - long size; - - segment_info[i].scnhdr.s_paddr = addr; - segment_info[i].scnhdr.s_vaddr = addr; - - if (segment_info[i].scnhdr.s_name[0]) - { - H_SET_NUMBER_OF_SECTIONS (&headers, - H_GET_NUMBER_OF_SECTIONS (&headers) + 1); - -#ifdef COFF_LONG_SECTION_NAMES - /* Support long section names as found in PE. This code - must coordinate with that in coff_header_append and - w_strings. */ - { - unsigned int len; - - len = strlen (segment_info[i].name); - if (len > SCNNMLEN) - string_byte_count += len + 1; - } -#endif /* COFF_LONG_SECTION_NAMES */ - } - - size = size_section (abfd, (unsigned int) i); - addr += size; - - /* I think the section alignment is only used on the i960; the - i960 needs it, and it should do no harm on other targets. */ -#ifdef ALIGNMENT_IN_S_FLAGS - segment_info[i].scnhdr.s_flags |= (section_alignment[i] & 0xF) << 8; -#else - segment_info[i].scnhdr.s_align = 1 << section_alignment[i]; -#endif - - if (i == SEG_E0) - H_SET_TEXT_SIZE (&headers, size); - else if (i == SEG_E1) - H_SET_DATA_SIZE (&headers, size); - else if (i == SEG_E2) - H_SET_BSS_SIZE (&headers, size); - } - - /* Turn the gas native symbol table shape into a coff symbol table. */ - crawl_symbols (&headers, abfd); - - if (string_byte_count == 4) - string_byte_count = 0; - - H_SET_STRING_SIZE (&headers, string_byte_count); - -#ifdef tc_frob_file - tc_frob_file (); -#endif - - for (i = SEG_E0; i < SEG_UNKNOWN; i++) - { - fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i); - fixup_segment (&segment_info[i], i); - } - - /* Look for ".stab" segments and fill in their initial symbols - correctly. */ - for (i = SEG_E0; i < SEG_UNKNOWN; i++) - { - name = segment_info[i].name; - - if (name != NULL - && strneq (".stab", name, 5) - && ! strneq (".stabstr", name, 8)) - adjust_stab_section (abfd, i); - } - - file_cursor = H_GET_TEXT_FILE_OFFSET (&headers); - - bfd_seek (abfd, (file_ptr) file_cursor, 0); - - /* Plant the data. */ - fill_section (abfd, &headers, &file_cursor); - - do_relocs_for (abfd, &headers, &file_cursor); - - do_linenos_for (abfd, &headers, &file_cursor); - - H_SET_FILE_MAGIC_NUMBER (&headers, COFF_MAGIC); -#ifndef OBJ_COFF_OMIT_TIMESTAMP - H_SET_TIME_STAMP (&headers, (long) time (NULL)); -#else - H_SET_TIME_STAMP (&headers, 0); -#endif -#ifdef TC_COFF_SET_MACHINE - TC_COFF_SET_MACHINE (&headers); -#endif - -#ifndef COFF_FLAGS -#define COFF_FLAGS 0 -#endif - -#ifdef KEEP_RELOC_INFO - H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE (&headers) ? 0 : F_LNNO) | - COFF_FLAGS | coff_flags)); -#else - H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE (&headers) ? 0 : F_LNNO) | - (H_GET_RELOCATION_SIZE (&headers) ? 0 : F_RELFLG) | - COFF_FLAGS | coff_flags)); -#endif - - { - unsigned int symtable_size = H_GET_SYMBOL_TABLE_SIZE (&headers); - char *buffer1 = xmalloc (symtable_size + string_byte_count + 1); - - H_SET_SYMBOL_TABLE_POINTER (&headers, bfd_tell (abfd)); - w_symbols (abfd, buffer1, symbol_rootP); - if (string_byte_count > 0) - w_strings (buffer1 + symtable_size); - bfd_bwrite (buffer1, (bfd_size_type) symtable_size + string_byte_count, - abfd); - free (buffer1); - } - - coff_header_append (abfd, &headers); - - { - extern bfd *stdoutput; - stdoutput = abfd; - } -} - -/* Add a new segment. This is called from subseg_new via the - obj_new_segment macro. */ - -segT -obj_coff_add_segment (const char *name) -{ - unsigned int i; - -#ifndef COFF_LONG_SECTION_NAMES - char buf[SCNNMLEN + 1]; - - strncpy (buf, name, SCNNMLEN); - buf[SCNNMLEN] = '\0'; - name = buf; -#endif - - for (i = SEG_E0; i < SEG_LAST && segment_info[i].scnhdr.s_name[0]; i++) - if (streq (name, segment_info[i].name)) - return (segT) i; - - if (i == SEG_LAST) - { - as_bad (_("Too many new sections; can't add \"%s\""), name); - return now_seg; - } - - /* Add a new section. */ - strncpy (segment_info[i].scnhdr.s_name, name, - sizeof (segment_info[i].scnhdr.s_name)); - segment_info[i].scnhdr.s_flags = STYP_REG; - segment_info[i].name = xstrdup (name); - - return (segT) i; -} - -/* Implement the .section pseudo op: - .section name {, "flags"} - ^ ^ - | +--- optional flags: 'b' for bss - | 'i' for info - +-- section name 'l' for lib - 'n' for noload - 'o' for over - 'w' for data - 'd' (apparently m88k for data) - 'x' for text - 'r' for read-only data - But if the argument is not a quoted string, treat it as a - subsegment number. */ - -void -obj_coff_section (int ignore ATTRIBUTE_UNUSED) -{ - /* Strip out the section name. */ - char *section_name, *name; - char c; - unsigned int exp; - long flags; - - if (flag_mri) - { - char type; - - s_mri_sect (&type); - flags = 0; - if (type == 'C') - flags = STYP_TEXT; - else if (type == 'D') - flags = STYP_DATA; - segment_info[now_seg].scnhdr.s_flags |= flags; - - return; - } - - section_name = input_line_pointer; - c = get_symbol_end (); - - name = xmalloc (input_line_pointer - section_name + 1); - strcpy (name, section_name); - - *input_line_pointer = c; - - exp = 0; - flags = 0; - - SKIP_WHITESPACE (); - if (*input_line_pointer == ',') - { - ++input_line_pointer; - SKIP_WHITESPACE (); - - if (*input_line_pointer != '"') - exp = get_absolute_expression (); - else - { - ++input_line_pointer; - while (*input_line_pointer != '"' - && ! is_end_of_line[(unsigned char) *input_line_pointer]) - { - switch (*input_line_pointer) - { - case 'b': flags |= STYP_BSS; break; - case 'i': flags |= STYP_INFO; break; - case 'l': flags |= STYP_LIB; break; - case 'n': flags |= STYP_NOLOAD; break; - case 'o': flags |= STYP_OVER; break; - case 'd': - case 'w': flags |= STYP_DATA; break; - case 'x': flags |= STYP_TEXT; break; - case 'r': flags |= STYP_LIT; break; - default: - as_warn (_("unknown section attribute '%c'"), - *input_line_pointer); - break; - } - ++input_line_pointer; - } - if (*input_line_pointer == '"') - ++input_line_pointer; - } - } - - subseg_new (name, (subsegT) exp); - - segment_info[now_seg].scnhdr.s_flags |= flags; - - demand_empty_rest_of_line (); -} - -static void -obj_coff_text (int ignore ATTRIBUTE_UNUSED) -{ - subseg_new (".text", get_absolute_expression ()); -} - -static void -obj_coff_data (int ignore ATTRIBUTE_UNUSED) -{ - if (flag_readonly_data_in_text) - subseg_new (".text", get_absolute_expression () + 1000); - else - subseg_new (".data", get_absolute_expression ()); -} - -static void -obj_coff_ident (int ignore ATTRIBUTE_UNUSED) -{ - segT current_seg = now_seg; /* Save current seg. */ - subsegT current_subseg = now_subseg; - - subseg_new (".comment", 0); /* .comment seg. */ - stringer (1); /* Read string. */ - subseg_set (current_seg, current_subseg); /* Restore current seg. */ -} - -void -c_dot_file_symbol (const char *filename, int appfile ATTRIBUTE_UNUSED) -{ - symbolS *symbolP; - - symbolP = symbol_new (".file", SEG_DEBUG, 0, & zero_address_frag); - - S_SET_STORAGE_CLASS (symbolP, C_FILE); - S_SET_NUMBER_AUXILIARY (symbolP, 1); - - if (strlen (filename) > FILNMLEN) - { - /* Filename is too long to fit into an auxent, - we stick it into the string table instead. We keep - a linked list of the filenames we find so we can emit - them later. */ - struct filename_list *f = xmalloc (sizeof (* f)); - - f->filename = filename; - f->next = 0; - - SA_SET_FILE_FNAME_ZEROS (symbolP, 0); - SA_SET_FILE_FNAME_OFFSET (symbolP, 1); - - if (filename_list_tail) - filename_list_tail->next = f; - else - filename_list_head = f; - filename_list_tail = f; - } - else - SA_SET_FILE_FNAME (symbolP, filename); - -#ifndef NO_LISTING - { - extern int listing; - if (listing) - listing_source_file (filename); - } -#endif - - SF_SET_DEBUG (symbolP); - S_SET_VALUE (symbolP, (valueT) previous_file_symbol); - - previous_file_symbol = symbolP; - - /* Make sure that the symbol is first on the symbol chain. */ - if (symbol_rootP != symbolP) - { - symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); - symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); - } -} - -static void -obj_coff_lcomm (int ignore ATTRIBUTE_UNUSED) -{ - s_lcomm (0); - return; -} - -/* The first entry in a .stab section is special. */ - -void -obj_coff_init_stab_section (segT seg) -{ - char *file; - char *p; - char *stabstr_name; - unsigned int stroff; - - /* Make space for this first symbol. */ - p = frag_more (12); - /* Zero it out. */ - memset (p, 0, 12); - as_where (&file, (unsigned int *) NULL); - stabstr_name = alloca (strlen (segment_info[seg].name) + 4); - strcpy (stabstr_name, segment_info[seg].name); - strcat (stabstr_name, "str"); - stroff = get_stab_string_offset (file, stabstr_name); - know (stroff == 1); - md_number_to_chars (p, stroff, 4); -} - -#endif /* not BFD_ASSEMBLER */ - -const pseudo_typeS coff_pseudo_table[] = -{ - {"ABORT", s_abort, 0}, - {"appline", obj_coff_ln, 1}, - /* We accept the .bss directive for backward compatibility with - earlier versions of gas. */ - {"bss", obj_coff_bss, 0}, - {"def", obj_coff_def, 0}, - {"dim", obj_coff_dim, 0}, - {"endef", obj_coff_endef, 0}, - {"ident", obj_coff_ident, 0}, - {"line", obj_coff_line, 0}, - {"ln", obj_coff_ln, 0}, - {"scl", obj_coff_scl, 0}, - {"sect", obj_coff_section, 0}, - {"sect.s", obj_coff_section, 0}, - {"section", obj_coff_section, 0}, - {"section.s", obj_coff_section, 0}, - /* FIXME: We ignore the MRI short attribute. */ - {"size", obj_coff_size, 0}, - {"tag", obj_coff_tag, 0}, - {"type", obj_coff_type, 0}, - {"val", obj_coff_val, 0}, - {"version", s_ignore, 0}, -#ifdef BFD_ASSEMBLER - {"loc", obj_coff_loc, 0}, - {"optim", s_ignore, 0}, /* For sun386i cc (?) */ - {"weak", obj_coff_weak, 0}, -#else - {"data", obj_coff_data, 0}, - {"lcomm", obj_coff_lcomm, 0}, - {"text", obj_coff_text, 0}, - {"use", obj_coff_section, 0}, -#endif -#if defined TC_M88K || defined TC_TIC4X - /* The m88k and tic4x uses sdef instead of def. */ - {"sdef", obj_coff_def, 0}, -#endif - {NULL, NULL, 0} -}; - -#ifdef BFD_ASSEMBLER - -/* Support for a COFF emulation. */ - -static void -coff_pop_insert (void) -{ - pop_insert (coff_pseudo_table); -} - -static int -coff_separate_stab_sections (void) -{ - return 1; -} - -const struct format_ops coff_format_ops = +const struct format_ops coff_format_ops = { bfd_target_coff_flavour, 0, /* dfl_leading_underscore */ @@ -4498,5 +1776,3 @@ const struct format_ops coff_format_ops = coff_obj_read_begin_hook, coff_obj_symbol_new_hook }; - -#endif -- cgit v1.1