diff options
Diffstat (limited to 'bfd/aout.c')
| -rwxr-xr-x | bfd/aout.c | 1500 |
1 files changed, 0 insertions, 1500 deletions
diff --git a/bfd/aout.c b/bfd/aout.c deleted file mode 100755 index 8a795e2..0000000 --- a/bfd/aout.c +++ /dev/null @@ -1,1500 +0,0 @@ -/* BFD semi-generic back-end for a.out binaries */ - -/* Copyright (C) 1990, 1991 Free Software Foundation, Inc. - -This file is part of BFD, the Binary File Diddler. - -BFD 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 1, or (at your option) -any later version. - -BFD 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 BFD; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - - -#include <ansidecl.h> -#include <sysdep.h> -#include "bfd.h" -#include "libbfd.h" - -#include "a.out.gnu.h" -#include "stab.gnu.h" -#include "ar.h" -#include "liba.out.h" /* BFD a.out internal data structures */ - -void (*bfd_error_trap)(); - -/*SUPPRESS558*/ -/*SUPPRESS529*/ - -#define CTOR_TABLE_RELOC_IDX 2 -static reloc_howto_type howto_table_ext[] = -{ - HOWTO(RELOC_8, 0, 0, 8, false, 0, true, true,0,"8", false, 0,0x000000ff, false), - HOWTO(RELOC_16, 0, 1, 16, false, 0, true, true,0,"16", false, 0,0x0000ffff, false), - HOWTO(RELOC_32, 0, 2, 32, false, 0, true, true,0,"32", false, 0,0xffffffff, false), - HOWTO(RELOC_DISP8, 0, 0, 8, true, 0, false, true,0,"DISP8", false, 0,0x000000ff, false), - HOWTO(RELOC_DISP16, 0, 1, 16, true, 0, false, true,0,"DISP16", false, 0,0x0000ffff, false), - HOWTO(RELOC_DISP32, 0, 2, 32, true, 0, false, true,0,"DISP32", false, 0,0xffffffff, false), - HOWTO(RELOC_WDISP30,2, 2, 30, true, 0, false, true,0,"WDISP30", false, 0,0x3fffffff, false), - HOWTO(RELOC_WDISP22,2, 2, 22, true, 0, false, true,0,"WDISP22", false, 0,0x003fffff, false), - HOWTO(RELOC_HI22, 10, 2, 22, false, 0, false, true,0,"HI22", false, 0,0x003fffff, false), - HOWTO(RELOC_22, 0, 2, 22, false, 0, false, true,0,"22", false, 0,0x003fffff, false), - HOWTO(RELOC_13, 0, 2, 13, false, 0, false, true,0,"13", false, 0,0x00001fff, false), - HOWTO(RELOC_LO10, 0, 2, 10, false, 0, false, true,0,"LO10", false, 0,0x000003ff, false), - HOWTO(RELOC_SFA_BASE,0, 2, 32, false, 0, false, true,0,"SFA_BASE", false, 0,0xffffffff, false), - HOWTO(RELOC_SFA_OFF13,0,2, 32, false, 0, false, true,0,"SFA_OFF13",false, 0,0xffffffff, false), - HOWTO(RELOC_BASE10, 0, 2, 16, false, 0, false, true,0,"BASE10", false, 0,0x0000ffff, false), - HOWTO(RELOC_BASE13, 0, 2, 13, false, 0, false, true,0,"BASE13", false, 0,0x00001fff, false), - HOWTO(RELOC_BASE22, 0, 2, 0, false, 0, false, true,0,"BASE22", false, 0,0x00000000, false), - HOWTO(RELOC_PC10, 0, 2, 10, false, 0, false, true,0,"PC10", false, 0,0x000003ff, false), - HOWTO(RELOC_PC22, 0, 2, 22, false, 0, false, true,0,"PC22", false, 0,0x003fffff, false), - HOWTO(RELOC_JMP_TBL,0, 2, 32, false, 0, false, true,0,"JMP_TBL", false, 0,0xffffffff, false), - HOWTO(RELOC_SEGOFF16,0, 2, 0, false, 0, false, true,0,"SEGOFF16", false, 0,0x00000000, false), - HOWTO(RELOC_GLOB_DAT,0, 2, 0, false, 0, false, true,0,"GLOB_DAT", false, 0,0x00000000, false), - HOWTO(RELOC_JMP_SLOT,0, 2, 0, false, 0, false, true,0,"JMP_SLOT", false, 0,0x00000000, false), - HOWTO(RELOC_RELATIVE,0, 2, 0, false, 0, false, true,0,"RELATIVE", false, 0,0x00000000, false), - HOWTO(RELOC_JUMPTARG,2, 13, 16, true, 0, false, true,0,"JUMPTARG", false, 0,0x0000ffff, false), - HOWTO(RELOC_CONST, 0, 13, 16, false, 0, false, true,0,"CONST", false, 0,0x0000ffff, false), - HOWTO(RELOC_CONSTH, 16, 13, 16, false, 0, false, true,0,"CONSTH", false, 0,0x0000ffff, false), -}; - -/* Convert standard reloc records to "arelent" format (incl byte swap). */ - -static reloc_howto_type howto_table_std[] = { - /* type rs size bsz pcrel bitpos abs ovrf sf name part_inpl readmask setmask pcdone */ -HOWTO( 0, 0, 0, 8, false, 0, true, true,0,"8", true, 0x000000ff,0x000000ff, false), -HOWTO( 1, 0, 1, 16, false, 0, true, true,0,"16", true, 0x0000ffff,0x0000ffff, false), -HOWTO( 2, 0, 2, 32, false, 0, true, true,0,"32", true, 0xffffffff,0xffffffff, false), -HOWTO( 3, 0, 3, 64, false, 0, true, true,0,"64", true, 0xdeaddead,0xdeaddead, false), -HOWTO( 4, 0, 0, 8, true, 0, false, true,0,"DISP8", true, 0x000000ff,0x000000ff, false), -HOWTO( 5, 0, 1, 16, true, 0, false, true,0,"DISP16", true, 0x0000ffff,0x0000ffff, false), -HOWTO( 6, 0, 2, 32, true, 0, false, true,0,"DISP32", true, 0xffffffff,0xffffffff, false), -HOWTO( 7, 0, 3, 64, true, 0, false, true,0,"DISP64", true, 0xfeedface,0xfeedface, false), -}; - - -bfd_error_vector_type bfd_error_vector; - -void -DEFUN(bfd_aout_swap_exec_header_in,(abfd, raw_bytes, execp), - bfd *abfd AND - unsigned char *raw_bytes AND - struct exec *execp) -{ - struct exec_bytes *bytes = (struct exec_bytes *)raw_bytes; - - /* Now fill in fields in the execp, from the bytes in the raw data. */ - execp->a_info = bfd_h_getlong (abfd, bytes->a_info); - execp->a_text = bfd_h_getlong (abfd, bytes->a_text); - execp->a_data = bfd_h_getlong (abfd, bytes->a_data); - execp->a_bss = bfd_h_getlong (abfd, bytes->a_bss); - execp->a_syms = bfd_h_getlong (abfd, bytes->a_syms); - execp->a_entry = bfd_h_getlong (abfd, bytes->a_entry); - execp->a_trsize = bfd_h_getlong (abfd, bytes->a_trsize); - execp->a_drsize = bfd_h_getlong (abfd, bytes->a_drsize); -} - -void -DEFUN(bfd_aout_swap_exec_header_out,(abfd, execp, raw_bytes), - bfd *abfd AND - struct exec *execp AND - unsigned char *raw_bytes) -{ - struct exec_bytes *bytes = (struct exec_bytes *)raw_bytes; - - /* Now fill in fields in the raw data, from the fields in the exec struct. */ - bfd_h_putlong (abfd, execp->a_info , bytes->a_info); - bfd_h_putlong (abfd, execp->a_text , bytes->a_text); - bfd_h_putlong (abfd, execp->a_data , bytes->a_data); - bfd_h_putlong (abfd, execp->a_bss , bytes->a_bss); - bfd_h_putlong (abfd, execp->a_syms , bytes->a_syms); - bfd_h_putlong (abfd, execp->a_entry , bytes->a_entry); - bfd_h_putlong (abfd, execp->a_trsize, bytes->a_trsize); - bfd_h_putlong (abfd, execp->a_drsize, bytes->a_drsize); -} - -/* Some A.OUT variant thinks that the file whose format we're checking - is an a.out file. Do some more checking, and set up for access if - it really is. Call back to the calling environment's "finish up" - function just before returning, to handle any last-minute setup. */ - -bfd_target * -some_aout_object_p (abfd, callback_to_real_object_p) - bfd *abfd; - bfd_target *(*callback_to_real_object_p) (); -{ - unsigned char exec_bytes[EXEC_BYTES_SIZE]; /* Raw bytes of exec hdr */ - struct exec *execp; - PTR rawptr; - - if (bfd_seek (abfd, 0L, false) < 0) { - bfd_error = system_call_error; - return 0; - } - - if (bfd_read ((PTR) exec_bytes, 1, EXEC_BYTES_SIZE, abfd) - != EXEC_BYTES_SIZE) { - bfd_error = wrong_format; - return 0; - } - - /* Use an intermediate variable for clarity */ - rawptr = (PTR) bfd_zalloc (abfd, sizeof (struct aoutdata) + sizeof (struct exec)); - - if (rawptr == NULL) { - bfd_error = no_memory; - return 0; - } - - set_tdata (abfd, ((struct aoutdata *) rawptr)); - exec_hdr (abfd) = execp = - (struct exec *) ((char *)rawptr + sizeof (struct aoutdata)); - - bfd_aout_swap_exec_header_in (abfd, exec_bytes, execp); - - /* Set the file flags */ - abfd->flags = NO_FLAGS; - if (execp->a_drsize || execp->a_trsize) - abfd->flags |= HAS_RELOC; - if (execp->a_entry) - abfd->flags |= EXEC_P; - if (execp->a_syms) - abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; - - if (N_MAGIC (*execp) == ZMAGIC) abfd->flags |= D_PAGED; - if (N_MAGIC (*execp) == NMAGIC) abfd->flags |= WP_TEXT; - - bfd_get_start_address (abfd) = execp->a_entry; - - obj_aout_symbols (abfd) = (aout_symbol_type *)NULL; - bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct nlist); - - /* Set the default architecture and machine type. These can be - overridden in the callback routine. */ - abfd->obj_arch = bfd_arch_unknown; - abfd->obj_machine = 0; - - /* The default relocation entry size is that of traditional V7 Unix. */ - obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; - - /* create the sections. This is raunchy, but bfd_close wants to reclaim - them */ - obj_textsec (abfd) = (asection *)NULL; - obj_datasec (abfd) = (asection *)NULL; - obj_bsssec (abfd) = (asection *)NULL; - (void)bfd_make_section(abfd, ".text"); - (void)bfd_make_section(abfd, ".data"); - (void)bfd_make_section(abfd, ".bss"); - - abfd->sections = obj_textsec (abfd); - obj_textsec (abfd)->next = obj_datasec (abfd); - obj_datasec (abfd)->next = obj_bsssec (abfd); - - obj_datasec (abfd)->size = execp->a_data; - obj_bsssec (abfd)->size = execp->a_bss; - obj_textsec (abfd)->size = execp->a_text; - - if (abfd->flags & D_PAGED) { - obj_textsec (abfd)->size -= EXEC_BYTES_SIZE; - } - - - obj_textsec (abfd)->flags = (execp->a_trsize != 0 ? - (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) : - (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS)); - obj_datasec (abfd)->flags = (execp->a_drsize != 0 ? - (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) : - (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS)); - obj_bsssec (abfd)->flags = SEC_ALLOC; - -#ifdef THIS_IS_ONLY_DOCUMENTATION - /* Call back to the format-dependent code to fill in the rest of the - fields and do any further cleanup. Things that should be filled - in by the callback: */ - - struct exec *execp = exec_hdr (abfd); - - /* The virtual memory addresses of the sections */ - obj_datasec (abfd)->vma = N_DATADDR(*execp); - obj_bsssec (abfd)->vma = N_BSSADDR(*execp); - obj_textsec (abfd)->vma = N_TXTADDR(*execp); - - /* The file offsets of the sections */ - obj_textsec (abfd)->filepos = N_TXTOFF(*execp); - obj_datasec (abfd)->filepos = N_DATOFF(*execp); - - /* The file offsets of the relocation info */ - obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp); - obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp); - - /* The file offsets of the string table and symbol table. */ - obj_str_filepos (abfd) = N_STROFF (*execp); - obj_sym_filepos (abfd) = N_SYMOFF (*execp); - - /* This common code can't fill in those things because they depend - on either the start address of the text segment, the rounding - up of virtual addersses between segments, or the starting file - position of the text segment -- all of which varies among different - versions of a.out. */ - - /* Determine the architecture and machine type of the object file. */ - switch (N_MACHTYPE (*exec_hdr (abfd))) { - default: - abfd->obj_arch = bfd_arch_obscure; - break; - } - - /* Determine the size of a relocation entry */ - switch (abfd->obj_arch) { - case bfd_arch_sparc: - case bfd_arch_a29k: - obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; - default: - obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; - } - - return abfd->xvec; - - /* The architecture is encoded in various ways in various a.out variants, - or is not encoded at all in some of them. The relocation size depends - on the architecture and the a.out variant. Finally, the return value - is the bfd_target vector in use. If an error occurs, return zero and - set bfd_error to the appropriate error code. - - Formats such as b.out, which have additional fields in the a.out - header, should cope with them in this callback as well. */ -#endif /* DOCUMENTATION */ - - - return (*callback_to_real_object_p)(abfd); -} - - -boolean -aout_mkobject (abfd) - bfd *abfd; -{ - char *rawptr; - - bfd_error = system_call_error; - - /* Use an intermediate variable for clarity */ - rawptr = bfd_zalloc (abfd, sizeof (struct aoutdata) + sizeof (struct exec)); - - if (rawptr == NULL) { - bfd_error = no_memory; - return false; - } - - set_tdata (abfd, (struct aoutdata *) rawptr); - exec_hdr (abfd) = (struct exec *) (rawptr + sizeof (struct aoutdata)); - - /* For simplicity's sake we just make all the sections right here. */ - - obj_textsec (abfd) = (asection *)NULL; - obj_datasec (abfd) = (asection *)NULL; - obj_bsssec (abfd) = (asection *)NULL; - bfd_make_section (abfd, ".text"); - bfd_make_section (abfd, ".data"); - bfd_make_section (abfd, ".bss"); - - return true; -} - -/* Keep track of machine architecture and machine type for a.out's. - Return the machine_type for a particular arch&machine, or M_UNKNOWN - if that exact arch&machine can't be represented in a.out format. - - If the architecture is understood, machine type 0 (default) should - always be understood. */ - -enum machine_type -aout_machine_type (arch, machine) - enum bfd_architecture arch; - unsigned long machine; -{ - enum machine_type arch_flags; - - arch_flags = M_UNKNOWN; - - switch (arch) { - case bfd_arch_sparc: - if (machine == 0) arch_flags = M_SPARC; - break; - - case bfd_arch_m68k: - switch (machine) { - case 0: arch_flags = M_68010; break; - case 68000: arch_flags = M_UNKNOWN; break; - case 68010: arch_flags = M_68010; break; - case 68020: arch_flags = M_68020; break; - default: arch_flags = M_UNKNOWN; break; - } - break; - - case bfd_arch_i386: - if (machine == 0) arch_flags = M_386; - break; - - case bfd_arch_a29k: - if (machine == 0) arch_flags = M_29K; - break; - - default: - arch_flags = M_UNKNOWN; - break; - } - return arch_flags; -} - -boolean -aout_set_arch_mach (abfd, arch, machine) - bfd *abfd; - enum bfd_architecture arch; - unsigned long machine; -{ - abfd->obj_arch = arch; - abfd->obj_machine = machine; - if (arch != bfd_arch_unknown && - aout_machine_type (arch, machine) == M_UNKNOWN) - return false; /* We can't represent this type */ - return true; /* We're easy ... */ -} - -/* exec and core file sections */ - -boolean -aout_new_section_hook (abfd, newsect) - bfd *abfd; - asection *newsect; -{ - /* align to double at least */ - newsect->alignment_power = 3; - - if (bfd_get_format (abfd) == bfd_object) { - if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) { - obj_textsec(abfd)= newsect; - return true; - } - - if (obj_datasec(abfd) == NULL && !strcmp(newsect->name, ".data")) { - obj_datasec(abfd) = newsect; - return true; - } - - if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) { - obj_bsssec(abfd) = newsect; - return true; - } - } - - /* We allow more than three sections internally */ - return true; -} - -boolean -aout_set_section_contents (abfd, section, location, offset, count) - bfd *abfd; - sec_ptr section; - PTR location; - file_ptr offset; - int count; -{ - if (abfd->output_has_begun == false) - { /* set by bfd.c handler */ - if ((obj_textsec (abfd) == NULL) || (obj_datasec (abfd) == NULL)) - { - bfd_error = invalid_operation; - return false; - } - - obj_textsec(abfd)->filepos = sizeof(struct exec); - obj_textsec(abfd)->size = align_power(obj_textsec(abfd)->size, - obj_textsec(abfd)->alignment_power); - obj_datasec(abfd)->filepos = obj_textsec (abfd)->size + EXEC_BYTES_SIZE; - obj_datasec(abfd)->size = align_power(obj_datasec(abfd)->size, - obj_datasec(abfd)->alignment_power); - - - } - /* regardless, once we know what we're doing, we might as well get going */ - if (section != obj_bsssec(abfd)) - { - bfd_seek (abfd, section->filepos + offset, SEEK_SET); - - if (count) { - return (bfd_write ((PTR)location, 1, count, abfd) == count) ? - true : false; - } - return false; - } - return true; -} - -/* Classify stabs symbols */ - -#define sym_in_text_section(sym) \ - (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_TEXT) - -#define sym_in_data_section(sym) \ - (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_DATA) - -#define sym_in_bss_section(sym) \ - (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_BSS) - -/* Symbol is undefined if type is N_UNDF|N_EXT and if it has - zero in the "value" field. Nonzeroes there are fortrancommon - symbols. */ -#define sym_is_undefined(sym) \ - ((sym)->n_type == (N_UNDF | N_EXT) && (sym)->n_value == 0) - -/* Symbol is a global definition if N_EXT is on and if it has - a nonzero type field. */ -#define sym_is_global_defn(sym) \ - (((sym)->n_type & N_EXT) && (sym)->n_type & N_TYPE) - -/* Symbol is debugger info if any bits outside N_TYPE or N_EXT - are on. */ -#define sym_is_debugger_info(sym) \ - ((sym)->n_type & ~(N_EXT | N_TYPE)) - -#define sym_is_fortrancommon(sym) \ - (((sym)->n_type == (N_EXT)) && (sym)->n_value != 0) - -/* Symbol is absolute if it has N_ABS set */ -#define sym_is_absolute(sym) \ - (((sym)->n_type & N_TYPE)== N_ABS) - - -#define sym_is_indirect(sym) \ - (((sym)->n_type & N_ABS)== N_ABS) - -/* Only in their own functions for ease of debugging; when sym flags have - stabilised these should be inlined into their (single) caller */ - -static void -translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd) - struct nlist *sym_pointer; - aout_symbol_type *cache_ptr; - bfd *abfd; -{ - switch (cache_ptr->type & N_TYPE) { - case N_SETA: - case N_SETT: - case N_SETD: - case N_SETB: - { - asection *section = bfd_make_section(abfd, - cache_ptr->symbol.name); - arelent_chain *reloc = (arelent_chain *)bfd_alloc(abfd, sizeof(arelent_chain)); - - switch ( (cache_ptr->type & N_TYPE) ) { - case N_SETA: - reloc->relent.section = (asection *)NULL; - cache_ptr->symbol.section = (asection *)NULL; - break; - case N_SETT: - reloc->relent.section = (asection *)obj_textsec(abfd); - cache_ptr->symbol.value -= reloc->relent.section->vma; - break; - case N_SETD: - reloc->relent.section = (asection *)obj_datasec(abfd); - cache_ptr->symbol.value -= reloc->relent.section->vma; - break; - case N_SETB: - reloc->relent.section = (asection *)obj_bsssec(abfd); - cache_ptr->symbol.value -= reloc->relent.section->vma; - break; - } - cache_ptr->symbol.section = reloc->relent.section; - reloc->relent.addend = cache_ptr->symbol.value ; - - /* We modify the symbol to belong to a section depending upon the - name of the symbol - probably __CTOR__ or __DTOR__ but we don't - really care, and add to the size of the section to contain a - pointer to the symbol. Build a reloc entry to relocate to this - symbol attached to this section. */ - - section->flags = SEC_CONSTRUCTOR; - section->reloc_count++; - section->alignment_power = 2; - reloc->relent.sym_ptr_ptr = (asymbol **)NULL; - reloc->next = section->constructor_chain; - section->constructor_chain = reloc; - reloc->relent.address = section->size; - section->size += sizeof(int *); - - reloc->relent.howto = howto_table_ext +CTOR_TABLE_RELOC_IDX; - cache_ptr->symbol.flags |= BSF_DEBUGGING ; - } - break; - default: - - if (sym_is_debugger_info (sym_pointer)) { - cache_ptr->symbol.flags = BSF_DEBUGGING ; - /* Work out the section correct for this symbol */ - switch (sym_pointer->n_type & N_TYPE) - { - case N_TEXT: - case N_FN: - cache_ptr->symbol.section = obj_textsec (abfd); - cache_ptr->symbol.value -= obj_textsec(abfd)->vma; - break; - case N_DATA: - cache_ptr->symbol.value -= obj_datasec(abfd)->vma; - cache_ptr->symbol.section = obj_datasec (abfd); - break; - case N_BSS : - cache_ptr->symbol.section = obj_bsssec (abfd); - cache_ptr->symbol.value -= obj_bsssec(abfd)->vma; - break; - case N_ABS: - default: - cache_ptr->symbol.section = 0; - break; - } - } - else { - if (sym_is_fortrancommon (sym_pointer)) - { - cache_ptr->symbol.flags = BSF_FORT_COMM; - cache_ptr->symbol.section = (asection *)NULL; - } - else { - if (sym_is_undefined (sym_pointer)) { - cache_ptr->symbol.flags = BSF_UNDEFINED; - } - else if (sym_is_global_defn (sym_pointer)) { - cache_ptr->symbol.flags = BSF_GLOBAL | BSF_EXPORT; - } - - else if (sym_is_absolute (sym_pointer)) { - cache_ptr->symbol.flags = BSF_ABSOLUTE; - } - else { - cache_ptr->symbol.flags = BSF_LOCAL; - } - - /* In a.out, the value of a symbol is always relative to the - * start of the file, if this is a data symbol we'll subtract - * the size of the text section to get the section relative - * value. If this is a bss symbol (which would be strange) - * we'll subtract the size of the previous two sections - * to find the section relative address. - */ - - if (sym_in_text_section (sym_pointer)) { - cache_ptr->symbol.value -= obj_textsec(abfd)->vma; - cache_ptr->symbol.section = obj_textsec (abfd); - } - else if (sym_in_data_section (sym_pointer)){ - cache_ptr->symbol.value -= obj_datasec(abfd)->vma; - cache_ptr->symbol.section = obj_datasec (abfd); - } - else if (sym_in_bss_section(sym_pointer)) { - cache_ptr->symbol.section = obj_bsssec (abfd); - cache_ptr->symbol.value -= obj_bsssec(abfd)->vma; - } - else { - cache_ptr->symbol.section = (asection *)NULL; - cache_ptr->symbol.flags |= BSF_ABSOLUTE; - } - } - } - } -} - -void -translate_to_native_sym_flags (sym_pointer, cache_ptr_g, abfd) - struct nlist *sym_pointer; - PTR cache_ptr_g; - bfd *abfd; -{ - asymbol *cache_ptr = (asymbol *)cache_ptr_g; - - /* FIXME check for writing bss */ - if (bfd_get_section(cache_ptr)) { - if (bfd_get_output_section(cache_ptr) == obj_bsssec (abfd)) { - sym_pointer->n_type |= N_BSS; - } - else if (bfd_get_output_section(cache_ptr) == obj_datasec (abfd)) { - sym_pointer->n_type |= N_DATA; - } - else if (bfd_get_output_section(cache_ptr) == obj_textsec (abfd)) { - sym_pointer->n_type |= N_TEXT; - } - else { - bfd_error_vector.nonrepresentable_section(abfd, - bfd_get_output_section(cache_ptr)->name); - } - /* Turn the symbol from section relative to absolute again */ - sym_pointer->n_value += - cache_ptr->section->output_section->vma - + cache_ptr->section->output_offset ; - } - else { - sym_pointer->n_type |= N_ABS; - } - - if (cache_ptr->flags & (BSF_FORT_COMM | BSF_UNDEFINED)) { - sym_pointer->n_type = (N_UNDF | N_EXT); - return; - } - - if (cache_ptr->flags & BSF_ABSOLUTE) { - sym_pointer->n_type |= N_ABS; - } - - if (cache_ptr->flags & (BSF_GLOBAL | BSF_EXPORT)) { - sym_pointer->n_type |= N_EXT; - } - if (cache_ptr->flags & BSF_DEBUGGING) { - sym_pointer->n_type = ((aout_symbol_type *)cache_ptr)->type; - } -} - -/* Native-level interface to symbols. */ - -/* We read the symbols into a buffer, which is discarded when this - function exits. We read the strings into a buffer large enough to - hold them all plus all the cached symbol entries. */ - -asymbol * -aout_make_empty_symbol (abfd) -bfd *abfd; -{ - aout_symbol_type *new = - (aout_symbol_type *)bfd_zalloc (abfd, sizeof (aout_symbol_type)); - new->symbol.the_bfd = abfd; - - return &new->symbol; -} - -boolean -DEFUN(aout_slurp_symbol_table, (abfd), - bfd *abfd) -{ - size_t symbol_size; - size_t string_size; - unsigned char string_chars[LONG_SIZE]; - struct nlist *syms; - char *strings; - aout_symbol_type *cached; - - /* If there's no work to be done, don't do any */ - if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true; - symbol_size = exec_hdr(abfd)->a_syms; - if (symbol_size == 0) { - bfd_error = no_symbols; - return false; - } - - bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET); - if (bfd_read ((PTR)string_chars, LONG_SIZE, 1, abfd) != LONG_SIZE) - return false; - string_size = bfd_h_getlong (abfd, string_chars); - - strings = bfd_alloc(abfd, string_size + 1); - cached = (aout_symbol_type *) - bfd_zalloc(abfd, bfd_get_symcount (abfd) * sizeof(aout_symbol_type)); - /* Alloc this last, so we can free it if obstack is in use. */ - syms = (struct nlist *) bfd_alloc(abfd, symbol_size); - - bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET); - if (bfd_read ((PTR)syms, 1, symbol_size, abfd) != symbol_size) { - bailout: - if (syms) bfd_release (abfd, syms); - if (cached) bfd_release (abfd, cached); - if (strings)bfd_release (abfd, strings); - return false; - } - - bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET); - if (bfd_read ((PTR)strings, 1, string_size, abfd) != string_size) { - goto bailout; - } - - /* OK, now walk the new symtable, cacheing symbol properties */ - { - register struct nlist *sym_pointer; - register struct nlist *sym_end = syms + bfd_get_symcount (abfd); - register aout_symbol_type *cache_ptr = cached; - - /* run through the table and byte swap if needed */ - for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++) { - sym_pointer->n_un.n_strx = - bfd_h_getlong (abfd, &sym_pointer->n_un.n_strx); - sym_pointer->n_desc = - bfd_h_getshort (abfd, &sym_pointer->n_desc); - sym_pointer->n_value = - bfd_h_getlong (abfd, &sym_pointer->n_value); - sym_pointer->n_other = (char) - bfd_h_getchar(abfd, &sym_pointer->n_other); - sym_pointer->n_type = (char) - bfd_h_getchar(abfd, &sym_pointer->n_type); - } - - /* Run through table and copy values */ - for (sym_pointer = syms, cache_ptr = cached; - sym_pointer < sym_end; sym_pointer++, cache_ptr++) - { - cache_ptr->symbol.the_bfd = abfd; - if (sym_pointer->n_un.n_strx) - cache_ptr->symbol.name = sym_pointer->n_un.n_strx + strings; - else - cache_ptr->symbol.name = (char *)NULL; - cache_ptr->symbol.value = sym_pointer->n_value; - cache_ptr->desc = sym_pointer->n_desc; - cache_ptr->other = sym_pointer->n_other; - cache_ptr->type = sym_pointer->n_type; - cache_ptr->symbol.udata = 0; - translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd); - - } - } - - obj_aout_symbols (abfd) = cached; - bfd_release (abfd, (PTR)syms); - - return true; -} - - -void -DEFUN(aout_write_syms,(abfd), - bfd *abfd) -{ - unsigned int count ; - asymbol **generic = bfd_get_outsymbols (abfd); - - unsigned int stindex = sizeof(stindex); /* initial string length */ - - for (count = 0; count < bfd_get_symcount (abfd); count++) { - asymbol *g = generic[count]; - struct nlist nsp; - - if (g->name) { - unsigned int length = strlen(g->name) +1; - bfd_h_putlong (abfd, stindex, (unsigned char *)&nsp.n_un.n_strx); - stindex += length; - } - else { - bfd_h_putlong (abfd, 0, (unsigned char *)&nsp.n_un.n_strx); - } - - if (g->the_bfd->xvec->flavour == abfd->xvec->flavour) - { - nsp.n_desc = aout_symbol( g)->desc; - nsp.n_other = aout_symbol(g)->other; - nsp.n_type = aout_symbol(g)->type; - } - else - { - nsp.n_desc = 0; - nsp.n_other = 0; - nsp.n_type = 0; - } - - - nsp.n_value = g->value; - translate_to_native_sym_flags (&nsp, (PTR)g, abfd); - - - bfd_h_putshort (abfd, nsp.n_desc, (unsigned char *)&nsp.n_desc); - bfd_h_putlong (abfd, nsp.n_value, (unsigned char *)&nsp.n_value); - bfd_write((PTR)&nsp,1, sizeof(nsp), abfd); - } - - - /* Now output the strings. Be sure to put string length into correct - * byte ordering before writing it. - */ - bfd_h_putlong (abfd, stindex, (unsigned char *)&stindex); - - bfd_write((PTR)&stindex, 1, sizeof(stindex), abfd); - - generic = bfd_get_outsymbols(abfd); - for (count = 0; count < bfd_get_symcount(abfd); count++) - { - asymbol *g = *(generic++); - - if (g->name) - { - size_t length = strlen(g->name)+1; - bfd_write((PTR)g->name, 1, length, abfd); - } - if ((g->flags & BSF_FAKE)==0) { - g->name = itos(count); /* smash the generic symbol */ - } - } -} - - -void -DEFUN(aout_reclaim_symbol_table,(abfd), - bfd *abfd) -{ - -} - -unsigned int -aout_get_symtab_upper_bound (abfd) - bfd *abfd; -{ - if (!aout_slurp_symbol_table (abfd)) return 0; - - return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *)); -} - -unsigned int -aout_get_symtab (abfd, location) - bfd *abfd; - asymbol **location; -{ - unsigned int counter = 0; - aout_symbol_type *symbase; - - if (!aout_slurp_symbol_table (abfd)) return 0; - - for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);) - *(location++) = (asymbol *)( symbase++); - *location++ =0; - return bfd_get_symcount(abfd); -} - - -/* Standard reloc stuff */ -/* Output standard relocation information to a file in target byte order. */ - -void -swap_std_reloc_out (abfd, g, natptr) - bfd *abfd; - arelent *g; /* Generic relocation struct */ - struct reloc_std_bytes *natptr; -{ - int r_index; - int r_extern; - unsigned int r_length; - int r_pcrel; - int r_baserel, r_jmptable, r_relative; - unsigned int r_addend; - - bfd_h_putlong (abfd, g->address, natptr->r_address); - - r_length = g->howto->size ; /* Size as a power of two */ - r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */ - /* r_baserel, r_jmptable, r_relative??? FIXME-soon */ - r_baserel = 0; - r_jmptable = 0; - r_relative = 0; - - r_addend = g->addend; /* Start here, see how it goes */ - - /* name was clobbered by aout_write_syms to be symbol index */ - - if (g->sym_ptr_ptr != NULL) - { - if ((*(g->sym_ptr_ptr))->section) { - /* put the section offset into the addend for output */ - r_addend += (*(g->sym_ptr_ptr))->section->vma; - } - - r_index = stoi((*(g->sym_ptr_ptr))->name); - r_extern = 1; - } - else { - r_extern = 0; - if (g->section == NULL) { - /* It is possible to have a reloc with nothing, we generate an - abs + 0 */ - r_addend = 0; - r_index = N_ABS | N_EXT; - } - else if(g->section->output_section == obj_textsec(abfd)) { - r_index = N_TEXT | N_EXT; - r_addend += g->section->output_section->vma; - } - else if (g->section->output_section == obj_datasec(abfd)) { - r_index = N_DATA | N_EXT; - r_addend += g->section->output_section->vma; - } - else if (g->section->output_section == obj_bsssec(abfd)) { - r_index = N_BSS | N_EXT ; - r_addend += g->section->output_section->vma; - } - else { - BFD_ASSERT(0); - } - } - - /* now the fun stuff */ - if (abfd->xvec->header_byteorder_big_p != false) { - natptr->r_index[0] = r_index >> 16; - natptr->r_index[1] = r_index >> 8; - natptr->r_index[2] = r_index; - natptr->r_bits[0] = - (r_extern? RELOC_STD_BITS_EXTERN_BIG: 0) - | (r_pcrel? RELOC_STD_BITS_PCREL_BIG: 0) - | (r_baserel? RELOC_STD_BITS_BASEREL_BIG: 0) - | (r_jmptable? RELOC_STD_BITS_JMPTABLE_BIG: 0) - | (r_relative? RELOC_STD_BITS_RELATIVE_BIG: 0) - | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG); - } else { - natptr->r_index[2] = r_index >> 16; - natptr->r_index[1] = r_index >> 8; - natptr->r_index[0] = r_index; - natptr->r_bits[0] = - (r_extern? RELOC_STD_BITS_EXTERN_LITTLE: 0) - | (r_pcrel? RELOC_STD_BITS_PCREL_LITTLE: 0) - | (r_baserel? RELOC_STD_BITS_BASEREL_LITTLE: 0) - | (r_jmptable? RELOC_STD_BITS_JMPTABLE_LITTLE: 0) - | (r_relative? RELOC_STD_BITS_RELATIVE_LITTLE: 0) - | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE); - } -} - - -/* Extended stuff */ -/* Output extended relocation information to a file in target byte order. */ - -void -swap_ext_reloc_out (abfd, g, natptr) - bfd *abfd; - arelent *g; /* Generic relocation struct */ - register struct reloc_ext_bytes *natptr; -{ - int r_index; - int r_extern; - unsigned int r_type; - unsigned int r_addend; - - bfd_h_putlong (abfd, g->address, natptr->r_address); - - /* Find a type in the output format which matches the input howto - - at the moment we assume input format == output format FIXME!! */ - r_type = (enum reloc_type) g->howto->type; - - r_addend = g->addend; /* Start here, see how it goes */ - - /* name was clobbered by aout_write_syms to be symbol index*/ - - if (g->sym_ptr_ptr != NULL) - { - if ((*(g->sym_ptr_ptr))->section) { - /* put the section offset into the addend for output */ - r_addend += (*(g->sym_ptr_ptr))->section->vma; - } - - r_index = stoi((*(g->sym_ptr_ptr))->name); - r_extern = 1; - } - else { - r_extern = 0; - if (g->section == NULL) { - BFD_ASSERT(0); - r_index = N_ABS | N_EXT; - } - else if(g->section->output_section == obj_textsec(abfd)) { - r_index = N_TEXT | N_EXT; - r_addend += g->section->output_section->vma; - } - else if (g->section->output_section == obj_datasec(abfd)) { - r_index = N_DATA | N_EXT; - r_addend += g->section->output_section->vma; - } - else if (g->section->output_section == obj_bsssec(abfd)) { - r_index = N_BSS | N_EXT ; - r_addend += g->section->output_section->vma; - } - else { - BFD_ASSERT(0); - } - } - - /* now the fun stuff */ - if (abfd->xvec->header_byteorder_big_p != false) { - natptr->r_index[0] = r_index >> 16; - natptr->r_index[1] = r_index >> 8; - natptr->r_index[2] = r_index; - natptr->r_bits[0] = - (r_extern? RELOC_EXT_BITS_EXTERN_BIG: 0) - | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG); - } else { - natptr->r_index[2] = r_index >> 16; - natptr->r_index[1] = r_index >> 8; - natptr->r_index[0] = r_index; - natptr->r_bits[0] = - (r_extern? RELOC_EXT_BITS_EXTERN_LITTLE: 0) - | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE); - } - - bfd_h_putlong (abfd, r_addend, natptr->r_addend); -} - -#define MOVE_ADDRESS(ad) \ - if (r_extern) { \ - cache_ptr->sym_ptr_ptr = symbols + r_index; \ - cache_ptr->section = (asection *)NULL; \ - cache_ptr->addend = ad; \ - } else { \ - cache_ptr->sym_ptr_ptr = (asymbol **)NULL; \ - switch (r_index) { \ - case N_TEXT: \ - case N_TEXT | N_EXT: \ - cache_ptr->section = obj_textsec(abfd); \ - cache_ptr->addend = ad - su->textsec->vma; \ - break; \ - case N_DATA: \ - case N_DATA | N_EXT: \ - cache_ptr->section = obj_datasec(abfd); \ - cache_ptr->addend = ad - su->datasec->vma; \ - break; \ - case N_BSS: \ - case N_BSS | N_EXT: \ - cache_ptr->section = obj_bsssec(abfd); \ - cache_ptr->addend = ad - su->bsssec->vma; \ - break; \ - case N_ABS: \ - case N_ABS | N_EXT: \ - cache_ptr->section = NULL; /* No section */ \ - cache_ptr->addend = ad; /* FIXME, is this right? */ \ - BFD_ASSERT(1); \ - break; \ - default: \ - cache_ptr->section = NULL; /* No section */ \ - cache_ptr->addend = ad; /* FIXME, is this right? */ \ - BFD_ASSERT(1); \ - break; \ - } \ - } \ - -void -swap_ext_reloc_in (abfd, bytes, cache_ptr, symbols) - bfd *abfd; - struct reloc_ext_bytes *bytes; - arelent *cache_ptr; - asymbol **symbols; -{ - int r_index; - int r_extern; - unsigned int r_type; - struct aoutdata *su = (struct aoutdata *)(abfd->tdata); - - cache_ptr->address = bfd_h_getlong (abfd, bytes->r_address); - - /* now the fun stuff */ - if (abfd->xvec->header_byteorder_big_p != false) { - r_index = (bytes->r_index[0] << 16) - | (bytes->r_index[1] << 8) - | bytes->r_index[2]; - r_extern = (0 != (bytes->r_bits[0] & RELOC_EXT_BITS_EXTERN_BIG)); - r_type = (bytes->r_bits[0] & RELOC_EXT_BITS_TYPE_BIG) - >> RELOC_EXT_BITS_TYPE_SH_BIG; - } else { - r_index = (bytes->r_index[2] << 16) - | (bytes->r_index[1] << 8) - | bytes->r_index[0]; - r_extern = (0 != (bytes->r_bits[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); - r_type = (bytes->r_bits[0] & RELOC_EXT_BITS_TYPE_LITTLE) - >> RELOC_EXT_BITS_TYPE_SH_LITTLE; - } - - cache_ptr->howto = howto_table_ext + r_type; - MOVE_ADDRESS(bfd_h_getlong(abfd,bytes->r_addend)); -} - -void -swap_std_reloc_in (abfd, bytes, cache_ptr, symbols) - bfd *abfd; - struct reloc_std_bytes *bytes; - arelent *cache_ptr; - asymbol **symbols; -{ - int r_index; - int r_extern; - unsigned int r_length; - int r_pcrel; - int r_baserel, r_jmptable, r_relative; - struct aoutdata *su = (struct aoutdata *)(abfd->tdata); - - cache_ptr->address = bfd_h_getlong (abfd, bytes->r_address); - - /* now the fun stuff */ - if (abfd->xvec->header_byteorder_big_p != false) { - r_index = (bytes->r_index[0] << 16) - | (bytes->r_index[1] << 8) - | bytes->r_index[2]; - r_extern = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_EXTERN_BIG)); - r_pcrel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_PCREL_BIG)); - r_baserel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_BASEREL_BIG)); - r_jmptable= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_JMPTABLE_BIG)); - r_relative= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_RELATIVE_BIG)); - r_length = (bytes->r_bits[0] & RELOC_STD_BITS_LENGTH_BIG) - >> RELOC_STD_BITS_LENGTH_SH_BIG; - } else { - r_index = (bytes->r_index[2] << 16) - | (bytes->r_index[1] << 8) - | bytes->r_index[0]; - r_extern = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_EXTERN_LITTLE)); - r_pcrel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_PCREL_LITTLE)); - r_baserel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_BASEREL_LITTLE)); - r_jmptable= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_JMPTABLE_LITTLE)); - r_relative= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_RELATIVE_LITTLE)); - r_length = (bytes->r_bits[0] & RELOC_STD_BITS_LENGTH_LITTLE) - >> RELOC_STD_BITS_LENGTH_SH_LITTLE; - } - - cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel; - /* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */ - - MOVE_ADDRESS(0); -} - -/* Reloc hackery */ - -boolean -aout_slurp_reloc_table (abfd, asect, symbols) - bfd *abfd; - sec_ptr asect; - asymbol **symbols; -{ - unsigned int count; - size_t reloc_size; - PTR relocs; - arelent *reloc_cache; - size_t each_size; - - if (asect->relocation) return true; - - if (asect->flags & SEC_CONSTRUCTOR) return true; - - if (asect == obj_datasec (abfd)) { - reloc_size = exec_hdr(abfd)->a_drsize; - goto doit; - } - - if (asect == obj_textsec (abfd)) { - reloc_size = exec_hdr(abfd)->a_trsize; - goto doit; - } - - bfd_error = invalid_operation; - return false; - - doit: - bfd_seek (abfd, asect->rel_filepos, SEEK_SET); - each_size = obj_reloc_entry_size (abfd); - - count = reloc_size / each_size; - - - reloc_cache = (arelent *) bfd_zalloc (abfd, (size_t)(count * sizeof - (arelent))); - if (!reloc_cache) { -nomem: - bfd_error = no_memory; - return false; - } - - relocs = bfd_alloc (abfd, reloc_size); - if (!relocs) { - bfd_release (abfd, reloc_cache); - goto nomem; - } - - if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size) { - bfd_release (abfd, relocs); - bfd_release (abfd, reloc_cache); - bfd_error = system_call_error; - return false; - } - - if (each_size == RELOC_EXT_SIZE) { - register struct reloc_ext_bytes *rptr = (struct reloc_ext_bytes *) relocs; - unsigned int counter = 0; - arelent *cache_ptr = reloc_cache; - - for (; counter < count; counter++, rptr++, cache_ptr++) { - swap_ext_reloc_in(abfd, rptr, cache_ptr, symbols); - } - } else { - register struct reloc_std_bytes *rptr = (struct reloc_std_bytes *) relocs; - unsigned int counter = 0; - arelent *cache_ptr = reloc_cache; - - for (; counter < count; counter++, rptr++, cache_ptr++) { - swap_std_reloc_in(abfd, rptr, cache_ptr, symbols); - } - - } - - bfd_release (abfd,relocs); - asect->relocation = reloc_cache; - asect->reloc_count = count; - return true; -} - - - -/* Write out a relocation section into an object file. */ - -boolean -aout_squirt_out_relocs (abfd, section) - bfd *abfd; - asection *section; -{ - arelent **generic; - unsigned char *native, *natptr; - size_t each_size; - - unsigned int count = section->reloc_count; - size_t natsize; - - if (count == 0) return true; - - each_size = obj_reloc_entry_size (abfd); - natsize = each_size * count; - native = (unsigned char *) bfd_zalloc (abfd, natsize); - if (!native) { - bfd_error = no_memory; - return false; - } - - generic = section->orelocation; - - if (each_size == RELOC_EXT_SIZE) - { - for (natptr = native; - count != 0; - --count, natptr += each_size, ++generic) - swap_ext_reloc_out (abfd, *generic, (struct reloc_ext_bytes *)natptr); - } - else - { - for (natptr = native; - count != 0; - --count, natptr += each_size, ++generic) - swap_std_reloc_out(abfd, *generic, (struct reloc_std_bytes *)natptr); - } - - if ( bfd_write ((PTR) native, 1, natsize, abfd) != natsize) { - bfd_release(abfd, native); - return false; - } - bfd_release (abfd, native); - - return true; -} - -/* This is stupid. This function should be a boolean predicate */ -unsigned int -aout_canonicalize_reloc (abfd, section, relptr, symbols) - bfd *abfd; - sec_ptr section; - arelent **relptr; - asymbol **symbols; -{ - arelent *tblptr = section->relocation; - unsigned int count; - - if (!(tblptr || aout_slurp_reloc_table (abfd, section, symbols))) - return 0; - - if (section->flags & SEC_CONSTRUCTOR) { - arelent_chain *chain = section->constructor_chain; - for (count = 0; count < section->reloc_count; count ++) { - *relptr ++ = &chain->relent; - chain = chain->next; - } - } - else { - tblptr = section->relocation; - if (!tblptr) return 0; - - for (count = 0; count++ < section->reloc_count;) - { - *relptr++ = tblptr++; - } - } - *relptr = 0; - - return section->reloc_count; -} - -unsigned int -aout_get_reloc_upper_bound (abfd, asect) - bfd *abfd; - sec_ptr asect; -{ - if (bfd_get_format (abfd) != bfd_object) { - bfd_error = invalid_operation; - return 0; - } - if (asect->flags & SEC_CONSTRUCTOR) { - return (sizeof (arelent *) * (asect->reloc_count+1)); - } - - - if (asect == obj_datasec (abfd)) - return (sizeof (arelent *) * - ((exec_hdr(abfd)->a_drsize / obj_reloc_entry_size (abfd)) - +1)); - - if (asect == obj_textsec (abfd)) - return (sizeof (arelent *) * - ((exec_hdr(abfd)->a_trsize / obj_reloc_entry_size (abfd)) - +1)); - - bfd_error = invalid_operation; - return 0; -} - -void -aout_reclaim_reloc (ignore_abfd, ignore) - bfd *ignore_abfd; - sec_ptr ignore; -{ - -} - - -alent * -aout_get_lineno(ignore_abfd, ignore_symbol) -bfd *ignore_abfd; -asymbol *ignore_symbol; -{ -return (alent *)NULL; -} - -void -aout_print_symbol(ignore_abfd, afile, symbol, how) -bfd *ignore_abfd; -PTR afile; -asymbol *symbol; -bfd_print_symbol_enum_type how; -{ - FILE *file = (FILE *)afile; - - switch (how) { - case bfd_print_symbol_name_enum: - fprintf(file,"%s", symbol->name); - break; - case bfd_print_symbol_type_enum: - fprintf(file,"%4x %2x %2x",(unsigned)(aout_symbol(symbol)->desc & 0xffff), - (unsigned)(aout_symbol(symbol)->other & 0xff), - (unsigned)(aout_symbol(symbol)->type)); - break; - case bfd_print_symbol_all_enum: - { - CONST char *section_name = symbol->section == (asection *)NULL ? - "*abs" : symbol->section->name; - - bfd_print_symbol_vandf((PTR)file,symbol); - - fprintf(file," %-5s %04x %02x %02x %s", - section_name, - (unsigned)(aout_symbol(symbol)->desc & 0xffff), - (unsigned)(aout_symbol(symbol)->other & 0xff), - (unsigned)(aout_symbol(symbol)->type & 0xff), - symbol->name); - } - break; - } -} - -/* - 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(aout_find_nearest_line,(abfd, - section, - symbols, - offset, - filename_ptr, - functionname_ptr, - line_ptr), - bfd *abfd AND - asection *section AND - asymbol **symbols AND - bfd_vma offset AND - CONST char **filename_ptr AND - CONST char **functionname_ptr AND - unsigned int *line_ptr) -{ - /* Run down the file looking for the filename, function and linenumber */ - asymbol **p; - static char buffer[100]; - bfd_vma high_line_vma = ~0; - bfd_vma low_func_vma = 0; - asymbol *func = 0; - *filename_ptr = abfd->filename; - *functionname_ptr = 0; - *line_ptr = 0; - if (symbols != (asymbol **)NULL) { - for (p = symbols; *p; p++) { - aout_symbol_type *q = (aout_symbol_type *)(*p); - switch (q->type){ - case N_SO: - *filename_ptr = q->symbol.name; - if (obj_textsec(abfd) != section) { - return true; - } - break; - case N_SLINE: - - case N_DSLINE: - case N_BSLINE: - /* We'll keep this if it resolves nearer than the one we have already */ - if (q->symbol.value >= offset && - q->symbol.value < high_line_vma) { - *line_ptr = q->desc; - high_line_vma = q->symbol.value; - } - break; - case N_FUN: - { - /* We'll keep this if it is nearer than the one we have already */ - if (q->symbol.value >= low_func_vma && - q->symbol.value <= offset) { - low_func_vma = q->symbol.value; - func = (asymbol *)q; - } - if (*line_ptr && func) { - CONST char *function = func->name; - char *p; - strncpy(buffer, function, sizeof(buffer)-1); - buffer[sizeof(buffer)-1] = 0; - /* Have to remove : stuff */ - p = strchr(buffer,':'); - if (p != NULL) {*p = NULL; } - *functionname_ptr = buffer; - return true; - - } - } - break; - } - } - } - - return true; - -} - -int -DEFUN(aout_sizeof_headers,(ignore_abfd), - bfd *ignore_abfd) -{ - return 0; /* FIXME, this is the wrong value! */ -} |