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These changes cut the size of libbfd.a on a Sun4 by about 11%.

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Somewhat more could be done.

Fri Jan  8 15:47:53 1993  Ian Lance Taylor  (ian@tweedledumb.cygnus.com)

	* coffcode.h: Moved many generic functions into coffgen.c.  Moved
	swapping functions into coffswap.h for ECOFF use.  Moved
	relocation functions, only used by h8300 and z8k, into reloc16.c.
	Added hooks for coffgen.c functions to backend data structure, and
	added hook functions.  Still more could be done.
	* coffswap.h: New file to hold COFF swapping routines.
	* coffgen.c: New file to hold generic COFF functions.
	* reloc16.c: New file to hold h8300 and z8k specific relocation
	functions.
	* libcoff-in.h: Added declarations for functions in coffgen.c.
	* libcoff.h: Rebuilt to incorporate changes.
	* coff-h8300.c: Function name changes.
	* coff-z8k.c: Function name changes.  Use coff_reloc16_extra_cases
	hook rather than defining EXTRA_CASES.
	* Makefile.in: Build new files coffgen and reloc16.  Added
	dependencies of coff-*.o on coffswap.h and seclet.h.
This commit is contained in:
Ian Lance Taylor 1993-01-08 21:11:21 +00:00
parent 003acb2d96
commit 075caafd65
8 changed files with 3172 additions and 2567 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
bfd/.Sanitize
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@ -57,6 +57,8 @@ coff-rs6000.c
coff-we32k.c
coff-z8k.c
coffcode.h
coffgen.c
coffswap.h
config
configure.bat
configure.in
@ -102,6 +104,7 @@ newsos3.c
oasys.c
opncls.c
reloc.c
reloc16.c
rs6000-core.c
sco-core.c
seclet.c

280
bfd/coff-z8k.c
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@ -1,7 +1,7 @@
/* Zilog Z800n COFF back-end for BFD.
Copyright (C) 1992 Free Software Foundation, Inc.
Written by Steve Chamberlain
sac@cygnus.com
/* BFD back-end for Zilog Z800n COFF binaries.
Copyright 1992 Free Software Foundation, Inc.
Contributed by Cygnus Support.
Written by Steve Chamberlain, <sac@cygnus.com>.
This file is part of BFD, the Binary File Descriptor library.
@ -19,7 +19,6 @@ You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
@ -33,51 +32,74 @@ extern bfd_error_vector_type bfd_error_vector;
/* Dummy for now */
static bfd_reloc_status_type
DEFUN(func_da, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
bfd *abfd AND
arelent *reloc_entry AND
struct symbol_cache_entry *symbol AND
PTR data AND
asection *input_section AND
bfd *output_bfd)
DEFUN (func_da, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
bfd * abfd AND
arelent * reloc_entry AND
struct symbol_cache_entry *symbol AND
PTR data AND
asection * input_section AND
bfd * output_bfd)
{
}
/* Dummy for now */
static bfd_reloc_status_type
DEFUN(func_jr, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
bfd *abfd AND
arelent *reloc_entry AND
struct symbol_cache_entry *symbol AND
PTR data AND
asection *input_section AND
bfd *output_bfd)
DEFUN (func_imm8, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
bfd * abfd AND
arelent * reloc_entry AND
struct symbol_cache_entry *symbol AND
PTR data AND
asection * input_section AND
bfd * output_bfd)
{
}
/* Dummy for now */
static bfd_reloc_status_type
DEFUN (func_jr, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
bfd * abfd AND
arelent * reloc_entry AND
struct symbol_cache_entry *symbol AND
PTR data AND
asection * input_section AND
bfd * output_bfd)
{
}
static reloc_howto_type r_imm32 =
HOWTO (R_IMM32, 0, 1, 32, false, 0, true,
true, func_jr, "r_imm32", true, 0xffffffff, 0xffffffff, false);
static reloc_howto_type r_imm4l =
HOWTO (R_IMM4L, 0, 1, 4, false, 0, true,
true, func_jr, "r_imm4l", true, 0xf, 0xf, false);
static reloc_howto_type r_da =
HOWTO(R_DA , 0, 1, 16, false, 0, true,
true,func_da,"r_da", true, 0x0000ffff,0x0000ffff, false);
static reloc_howto_type r_jr =
HOWTO(R_JR, 0,1,8,true,0,true,true,func_jr,"r_jr", true,0,0,true);
HOWTO (R_DA, 0, 1, 16, false, 0, true,
true, func_da, "r_da", true, 0x0000ffff, 0x0000ffff, false);
static reloc_howto_type r_imm8 =
HOWTO (R_IMM8, 0, 1, 8, false, 0, true,
true, func_imm8, "r_imm8", true, 0x000000ff, 0x000000ff, false);
static reloc_howto_type r_jr =
HOWTO (R_JR, 0, 1, 8, true, 0, true, true, func_jr, "r_jr", true, 0, 0, true);
/* Turn a howto into a reloc number */
static int coff_z8k_select_reloc(howto)
reloc_howto_type *howto;
static int
coff_z8k_select_reloc (howto)
reloc_howto_type *howto;
{
return howto->type;
return howto->type;
}
#define SELECT_RELOC(x,howto) x= coff_z8k_select_reloc(howto)
#define BADMAG(x) Z8KBADMAG(x)
#define Z8K 1 /* Customize coffcode.h */
#define Z8K 1 /* Customize coffcode.h */
#define __A_MAGIC_SET__
@ -87,24 +109,35 @@ return howto->type;
#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
dst->r_stuff[0] = 'S'; \
dst->r_stuff[1] = 'C';
dst->r_stuff[1] = 'C';
/* Code to turn a r_type into a howto ptr, uses the above howto table
*/
static void
DEFUN(rtype2howto,(internal, dst),
arelent *internal AND
struct internal_reloc *dst)
static void
DEFUN (rtype2howto, (internal, dst),
arelent * internal AND
struct internal_reloc *dst)
{
switch (dst->r_type) {
default:
printf("BAD %x\n", dst->r_type);
case R_DA:
internal->howto = &r_da;
break;
case R_JR:
internal->howto = &r_jr;
switch (dst->r_type)
{
default:
printf ("BAD %x\n", dst->r_type);
case R_IMM8:
internal->howto = &r_imm8;
break;
case R_DA:
internal->howto = &r_da;
break;
case R_JR:
internal->howto = &r_jr;
break;
case R_IMM32:
internal->howto = &r_imm32;
break;
case R_IMM4L:
internal->howto = &r_imm4l;
break;
}
}
@ -117,43 +150,37 @@ struct internal_reloc *dst)
#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
cache_ptr->addend = ext_reloc.r_offset;
#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
reloc_processing(relent, reloc, symbols, abfd, section)
static void DEFUN(reloc_processing,(relent,reloc, symbols, abfd, section) ,
arelent *relent AND
struct internal_reloc *reloc AND
asymbol **symbols AND
bfd *abfd AND
asection *section)
static void
DEFUN (reloc_processing, (relent, reloc, symbols, abfd, section),
arelent * relent AND
struct internal_reloc *reloc AND
asymbol ** symbols AND
bfd * abfd AND
asection * section)
{
relent->address = reloc->r_vaddr;
rtype2howto(relent,reloc);
relent->address = reloc->r_vaddr;
rtype2howto (relent, reloc);
if (reloc->r_symndx > 0)
{
relent->sym_ptr_ptr = symbols + obj_convert(abfd)[reloc->r_symndx];
if (reloc->r_symndx > 0)
{
relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
}
else
{
relent->sym_ptr_ptr = &(bfd_abs_symbol);
}
}
else
{
relent->sym_ptr_ptr = &(bfd_abs_symbol);
}
relent->addend = reloc->r_offset;
relent->address-= section->vma;
/* relent->section = 0;*/
relent->address -= section->vma;
}
static bfd_vma get_value();
static void
extra_case(in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
extra_case (in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
bfd *in_abfd;
bfd_seclet_type *seclet;
arelent *reloc;
@ -161,49 +188,73 @@ extra_case(in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
unsigned int *src_ptr;
unsigned int *dst_ptr;
{
switch (reloc->howto->type)
{
case R_DA:
bfd_put_16(in_abfd, get_value(reloc, seclet), data+*dst_ptr);
(*dst_ptr)+=2;
( *src_ptr)+=2;
break;
case R_JR:
{
bfd_vma dst = get_value(reloc,seclet);
bfd_vma dot = seclet->offset
+ *dst_ptr
+ seclet->u.indirect.section->output_section->vma;
int gap = dst - dot - 1 ; /* -1 since were in the odd byte of the
word */
if (gap & 1)
abort();
gap/=2;
if (gap > 128 || gap< -128)
{
bfd_error_vector.reloc_value_truncated(reloc, seclet);
}
bfd_put_8(in_abfd, gap, data+*dst_ptr);
(*dst_ptr)++;
(*src_ptr)++;
break;
}
default:
abort();
}
switch (reloc->howto->type)
{
case R_IMM8:
bfd_put_8 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet),
data + *dst_ptr);
(*dst_ptr) += 1;
(*src_ptr) += 1;
break;
case R_IMM32:
bfd_put_32 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet),
data + *dst_ptr);
(*dst_ptr) += 4;
(*src_ptr) += 4;
break;
case R_IMM4L:
bfd_put_8 (in_abfd,
(bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0)
| (0x0f & bfd_coff_reloc16_get_value (reloc, seclet)),
data + *dst_ptr);
(*dst_ptr) += 1;
(*src_ptr) += 1;
break;
case R_DA:
bfd_put_16 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet),
data + *dst_ptr);
(*dst_ptr) += 2;
(*src_ptr) += 2;
break;
case R_JR:
{
bfd_vma dst = bfd_coff_reloc16_get_value (reloc, seclet);
bfd_vma dot = seclet->offset
+ *dst_ptr
+ seclet->u.indirect.section->output_section->vma;
int gap = dst - dot - 1;/* -1 since were in the odd byte of the
word and the pc's been incremented */
if (gap & 1)
abort ();
gap /= 2;
if (gap > 128 || gap < -128)
{
bfd_error_vector.reloc_value_truncated (reloc, seclet);
}
bfd_put_8 (in_abfd, gap, data + *dst_ptr);
(*dst_ptr)++;
(*src_ptr)++;
break;
}
default:
abort ();
}
}
#define EXTRA_CASES default: extra_case(in_abfd,seclet,reloc, data, &src_address, &dst_address);
#define coff_reloc16_extra_cases extra_case
#include "coffcode.h"
#undef coff_bfd_get_relocated_section_contents
#undef coff_bfd_get_relocated_section_contents
#undef coff_bfd_relax_section
#define coff_bfd_get_relocated_section_contents bfd_coff_get_relocated_section_contents
#define coff_bfd_relax_section bfd_coff_relax_section
#define coff_bfd_get_relocated_section_contents bfd_coff_reloc16_get_relocated_section_contents
#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
bfd_target z8kcoff_vec =
{
@ -216,21 +267,22 @@ bfd_target z8kcoff_vec =
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
( SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
'_', /* leading symbol underscore */
'/', /* ar_pad_char */
15, /* ar_max_namelen */
1, /* minimum section alignment */
_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
bfd_generic_archive_p, _bfd_dummy_target},
{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
bfd_false},
{bfd_false, coff_write_object_contents, /* bfd_write_contents */
{bfd_false, coff_write_object_contents, /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
JUMP_TABLE(coff),
COFF_SWAP_TABLE
};
JUMP_TABLE (coff),
0, 0,
COFF_SWAP_TABLE,
};

2742
bfd/coffcode.h
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File diff suppressed because it is too large Load Diff

1501
bfd/coffgen.c Normal file
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File diff suppressed because it is too large Load Diff

559
bfd/coffswap.h Normal file
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@ -0,0 +1,559 @@
/* Generic COFF swapping routines, for BFD.
Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* This file contains routines used to swap COFF data. It is a header
file because the details of swapping depend on the details of the
structures used by each COFF implementation. This is included by
coffcode.h, as well as by the ECOFF backend.
Any file which uses this must first include "coff/internal.h" and
"coff/CPU.h". The functions will then be correct for that CPU. */
#define PUTWORD bfd_h_put_32
#define PUTHALF bfd_h_put_16
#define PUTBYTE bfd_h_put_8
#ifndef GET_FCN_LNNOPTR
#define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
#endif
#ifndef GET_FCN_ENDNDX
#define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
#endif
#ifndef PUT_FCN_LNNOPTR
#define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
#endif
#ifndef PUT_FCN_ENDNDX
#define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
#endif
#ifndef GET_LNSZ_LNNO
#define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
#endif
#ifndef GET_LNSZ_SIZE
#define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
#endif
#ifndef PUT_LNSZ_LNNO
#define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno)
#endif
#ifndef PUT_LNSZ_SIZE
#define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size)
#endif
#ifndef GET_SCN_SCNLEN
#define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
#endif
#ifndef GET_SCN_NRELOC
#define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc)
#endif
#ifndef GET_SCN_NLINNO
#define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno)
#endif
#ifndef PUT_SCN_SCNLEN
#define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen)
#endif
#ifndef PUT_SCN_NRELOC
#define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc)
#endif
#ifndef PUT_SCN_NLINNO
#define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno)
#endif
#ifndef GET_LINENO_LNNO
#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno));
#endif
#ifndef PUT_LINENO_LNNO
#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno));
#endif
static void
DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst),
bfd *abfd AND
RELOC *reloc_src AND
struct internal_reloc *reloc_dst)
{
reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr);
reloc_dst->r_symndx = bfd_h_get_32(abfd, (bfd_byte *) reloc_src->r_symndx);
#ifdef RS6000COFF_C
reloc_dst->r_type = bfd_h_get_8(abfd, reloc_src->r_type);
reloc_dst->r_size = bfd_h_get_8(abfd, reloc_src->r_size);
#else
reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type);
#endif
#ifdef SWAP_IN_RELOC_OFFSET
reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd,
(bfd_byte *) reloc_src->r_offset);
#endif
}
static unsigned int
DEFUN(coff_swap_reloc_out,(abfd, src, dst),
bfd *abfd AND
PTR src AND
PTR dst)
{
struct internal_reloc *reloc_src = (struct internal_reloc *)src;
struct external_reloc *reloc_dst = (struct external_reloc *)dst;
bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr);
bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx);
bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *)
reloc_dst->r_type);
#ifdef SWAP_OUT_RELOC_OFFSET
SWAP_OUT_RELOC_OFFSET(abfd,
reloc_src->r_offset,
(bfd_byte *) reloc_dst->r_offset);
#endif
#ifdef SWAP_OUT_RELOC_EXTRA
SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst);
#endif
return sizeof(struct external_reloc);
}
static void
DEFUN(coff_swap_filehdr_in,(abfd, src, dst),
bfd *abfd AND
PTR src AND
PTR dst)
{
FILHDR *filehdr_src = (FILHDR *) src;
struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst;
filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic);
filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns);
filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat);
filehdr_dst->f_symptr = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_symptr);
filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms);
filehdr_dst->f_opthdr = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_opthdr);
filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags);
}
static unsigned int
DEFUN(coff_swap_filehdr_out,(abfd, in, out),
bfd *abfd AND
PTR in AND
PTR out)
{
struct internal_filehdr *filehdr_in = (struct internal_filehdr *)in;
FILHDR *filehdr_out = (FILHDR *)out;
bfd_h_put_16(abfd, filehdr_in->f_magic, (bfd_byte *) filehdr_out->f_magic);
bfd_h_put_16(abfd, filehdr_in->f_nscns, (bfd_byte *) filehdr_out->f_nscns);
bfd_h_put_32(abfd, filehdr_in->f_timdat, (bfd_byte *) filehdr_out->f_timdat);
bfd_h_put_32(abfd, filehdr_in->f_symptr, (bfd_byte *) filehdr_out->f_symptr);
bfd_h_put_32(abfd, filehdr_in->f_nsyms, (bfd_byte *) filehdr_out->f_nsyms);
bfd_h_put_16(abfd, filehdr_in->f_opthdr, (bfd_byte *) filehdr_out->f_opthdr);
bfd_h_put_16(abfd, filehdr_in->f_flags, (bfd_byte *) filehdr_out->f_flags);
return sizeof(FILHDR);
}
#ifndef NO_COFF_SYMBOLS
static void
DEFUN(coff_swap_sym_in,(abfd, ext1, in1),
bfd *abfd AND
PTR ext1 AND
PTR in1)
{
SYMENT *ext = (SYMENT *)ext1;
struct internal_syment *in = (struct internal_syment *)in1;
if( ext->e.e_name[0] == 0) {
in->_n._n_n._n_zeroes = 0;
in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset);
}
else {
#if SYMNMLEN != E_SYMNMLEN
-> Error, we need to cope with truncating or extending SYMNMLEN!;
#else
memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN);
#endif
}
in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value);
in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum);
if (sizeof(ext->e_type) == 2){
in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type);
}
else {
in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type);
}
in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass);
in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux);
}
static unsigned int
DEFUN(coff_swap_sym_out,(abfd, inp, extp),
bfd *abfd AND
PTR inp AND
PTR extp)
{
struct internal_syment *in = (struct internal_syment *)inp;
SYMENT *ext =(SYMENT *)extp;
if(in->_n._n_name[0] == 0) {
bfd_h_put_32(abfd, 0, (bfd_byte *) ext->e.e.e_zeroes);
bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e.e.e_offset);
}
else {
#if SYMNMLEN != E_SYMNMLEN
-> Error, we need to cope with truncating or extending SYMNMLEN!;
#else
memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN);
#endif
}
bfd_h_put_32(abfd, in->n_value , (bfd_byte *) ext->e_value);
bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum);
if (sizeof(ext->e_type) == 2)
{
bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type);
}
else
{
bfd_h_put_32(abfd, in->n_type , (bfd_byte *) ext->e_type);
}
bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass);
bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux);
return sizeof(SYMENT);
}
static void
DEFUN(coff_swap_aux_in,(abfd, ext1, type, class, in1),
bfd *abfd AND
PTR ext1 AND
int type AND
int class AND
PTR in1)
{
AUXENT *ext = (AUXENT *)ext1;
union internal_auxent *in = (union internal_auxent *)in1;
switch (class) {
case C_FILE:
if (ext->x_file.x_fname[0] == 0) {
in->x_file.x_n.x_zeroes = 0;
in->x_file.x_n.x_offset =
bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset);
} else {
#if FILNMLEN != E_FILNMLEN
-> Error, we need to cope with truncating or extending FILNMLEN!;
#else
memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN);
#endif
}
break;
/* RS/6000 "csect" auxents */
#ifdef RS6000COFF_C
case C_EXT:
case C_HIDEXT:
in->x_csect.x_scnlen = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_scnlen);
in->x_csect.x_parmhash = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_parmhash);
in->x_csect.x_snhash = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snhash);
/* We don't have to hack bitfields in x_smtyp because it's defined by
shifts-and-ands, which are equivalent on all byte orders. */
in->x_csect.x_smtyp = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smtyp);
in->x_csect.x_smclas = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smclas);
in->x_csect.x_stab = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_stab);
in->x_csect.x_snstab = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snstab);
break;
#endif
case C_STAT:
#ifdef C_LEAFSTAT
case C_LEAFSTAT:
#endif
case C_HIDDEN:
if (type == T_NULL) {
in->x_scn.x_scnlen = GET_SCN_SCNLEN(abfd, ext);
in->x_scn.x_nreloc = GET_SCN_NRELOC(abfd, ext);
in->x_scn.x_nlinno = GET_SCN_NLINNO(abfd, ext);
break;
}
default:
in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx);
#ifndef NO_TVNDX
in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx);
#endif
if (ISARY(type)) {
#if DIMNUM != E_DIMNUM
-> Error, we need to cope with truncating or extending DIMNUM!;
#else
in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
in->x_sym.x_fcnary.x_ary.x_dimen[1] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
in->x_sym.x_fcnary.x_ary.x_dimen[2] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
in->x_sym.x_fcnary.x_ary.x_dimen[3] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
#endif
}
if (class == C_BLOCK || ISFCN(type) || ISTAG(class)) {
in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext);
in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext);
}
if (ISFCN(type)) {
in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize);
}
else {
in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext);
in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext);
}
}
}
static unsigned int
DEFUN(coff_swap_aux_out,(abfd, inp, type, class, extp),
bfd *abfd AND
PTR inp AND
int type AND
int class AND
PTR extp)
{
union internal_auxent *in = (union internal_auxent *)inp;
AUXENT *ext = (AUXENT *)extp;
memset((PTR)ext, 0, AUXESZ);
switch (class) {
case C_FILE:
if (in->x_file.x_fname[0] == 0) {
PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes);
PUTWORD(abfd,
in->x_file.x_n.x_offset,
(bfd_byte *) ext->x_file.x_n.x_offset);
}
else {
#if FILNMLEN != E_FILNMLEN
-> Error, we need to cope with truncating or extending FILNMLEN!;
#else
memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN);
#endif
}
break;
#ifdef RS6000COFF_C
/* RS/6000 "csect" auxents */
case C_EXT:
case C_HIDEXT:
PUTWORD (abfd, in->x_csect.x_scnlen, ext->x_csect.x_scnlen);
PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
/* We don't have to hack bitfields in x_smtyp because it's defined by
shifts-and-ands, which are equivalent on all byte orders. */
PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
PUTWORD (abfd, in->x_csect.x_stab, ext->x_csect.x_stab);
PUTHALF (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab);
break;
#endif
case C_STAT:
#ifdef C_LEAFSTAT
case C_LEAFSTAT:
#endif
case C_HIDDEN:
if (type == T_NULL) {
PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext);
PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext);
PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext);
break;
}
default:
PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx);
#ifndef NO_TVNDX
bfd_h_put_16(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx);
#endif
if (class == C_BLOCK || ISFCN(type) || ISTAG(class)) {
PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext);
PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext);
}
if (ISFCN(type)) {
PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize);
}
else {
if (ISARY(type)) {
#if DIMNUM != E_DIMNUM
-> Error, we need to cope with truncating or extending DIMNUM!;
#else
bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
#endif
}
PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext);
PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext);
}
}
return sizeof(AUXENT);
}
#endif /* NO_COFF_SYMBOLS */
#ifndef NO_COFF_LINENOS
static void
DEFUN(coff_swap_lineno_in,(abfd, ext1, in1),
bfd *abfd AND
PTR ext1 AND
PTR in1)
{
LINENO *ext = (LINENO *)ext1;
struct internal_lineno *in = (struct internal_lineno *)in1;
in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx);
in->l_lnno = GET_LINENO_LNNO(abfd, ext);
}
static unsigned int
DEFUN(coff_swap_lineno_out,(abfd, inp, outp),
bfd *abfd AND
PTR inp AND
PTR outp)
{
struct internal_lineno *in = (struct internal_lineno *)inp;
struct external_lineno *ext = (struct external_lineno *)outp;
PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *)
ext->l_addr.l_symndx);
PUT_LINENO_LNNO (abfd, in->l_lnno, ext);
return sizeof(struct external_lineno);
}
#endif /* NO_COFF_LINENOS */
static void
DEFUN(coff_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1),
bfd *abfd AND
PTR aouthdr_ext1 AND
PTR aouthdr_int1)
{
AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1;
struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1;
aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic);
aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp);
aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize);
aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize);
aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize);
aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry);
aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start);
aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start);
#ifdef I960
aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries);
#endif
#ifdef RS6000COFF_C
aouthdr_int->o_toc = bfd_h_get_32(abfd, aouthdr_ext->o_toc);
aouthdr_int->o_snentry = bfd_h_get_16(abfd, aouthdr_ext->o_snentry);
aouthdr_int->o_sntext = bfd_h_get_16(abfd, aouthdr_ext->o_sntext);
aouthdr_int->o_sndata = bfd_h_get_16(abfd, aouthdr_ext->o_sndata);
aouthdr_int->o_sntoc = bfd_h_get_16(abfd, aouthdr_ext->o_sntoc);
aouthdr_int->o_snloader = bfd_h_get_16(abfd, aouthdr_ext->o_snloader);
aouthdr_int->o_snbss = bfd_h_get_16(abfd, aouthdr_ext->o_snbss);
aouthdr_int->o_algntext = bfd_h_get_16(abfd, aouthdr_ext->o_algntext);
aouthdr_int->o_algndata = bfd_h_get_16(abfd, aouthdr_ext->o_algndata);
aouthdr_int->o_modtype = bfd_h_get_16(abfd, aouthdr_ext->o_modtype);
aouthdr_int->o_maxstack = bfd_h_get_32(abfd, aouthdr_ext->o_maxstack);
#endif
}
static unsigned int
DEFUN(coff_swap_aouthdr_out,(abfd, in, out),
bfd *abfd AND
PTR in AND
PTR out)
{
struct internal_aouthdr *aouthdr_in = (struct internal_aouthdr *)in;
AOUTHDR *aouthdr_out = (AOUTHDR *)out;
bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic);
bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp);
bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize);
bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize);
bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize);
bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry);
bfd_h_put_32(abfd, aouthdr_in->text_start,
(bfd_byte *) aouthdr_out->text_start);
bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start);
#ifdef I960
bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries);
#endif
return sizeof(AOUTHDR);
}
static void
DEFUN(coff_swap_scnhdr_in,(abfd, ext, in),
bfd *abfd AND
PTR ext AND
PTR in)
{
SCNHDR *scnhdr_ext = (SCNHDR *) ext;
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name));
scnhdr_int->s_vaddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_vaddr);
scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr);
scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size);
scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr);
scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr);
scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr);
scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags);
#if defined(M88)
scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc);
scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno);
#else
scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc);
scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno);
#endif
#ifdef I960
scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align);
#endif
}
static unsigned int
DEFUN(coff_swap_scnhdr_out,(abfd, in, out),
bfd *abfd AND
PTR in AND
PTR out)
{
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *)in;
SCNHDR *scnhdr_ext = (SCNHDR *)out;
memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name));
PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr);
PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr);
PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size);
PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr);
PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr);
PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr);
PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags);
#if defined(M88)
PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno);
PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc);
#else
PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno);
PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc);
#endif
#if defined(I960)
PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align);
#endif
return sizeof(SCNHDR);
}

112
bfd/libcoff-in.h Normal file
View File

@ -0,0 +1,112 @@
/* BFD COFF object file private structure.
Copyright (C) 1990-1991 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Object file tdata; access macros */
#define coff_data(bfd) ((bfd)->tdata.coff_obj_data)
#define exec_hdr(bfd) (coff_data(bfd)->hdr)
#define obj_symbols(bfd) (coff_data(bfd)->symbols)
#define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos)
#define obj_relocbase(bfd) (coff_data(bfd)->relocbase)
#define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments)
#define obj_convert(bfd) (coff_data(bfd)->conversion_table)
#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
#if CFILE_STUFF
#define obj_symbol_slew(bfd) (coff_data(bfd)->symbol_index_slew)
#else
#define obj_symbol_slew(bfd) 0
#endif
/* `Tdata' information kept for COFF files. */
typedef struct coff_tdata
{
struct coff_symbol_struct *symbols; /* symtab for input bfd */
unsigned int *conversion_table;
int conv_table_size;
file_ptr sym_filepos;
long symbol_index_slew; /* used during read to mark whether a
C_FILE symbol as been added. */
struct coff_ptr_struct *raw_syments;
struct lineno *raw_linenos;
unsigned int raw_syment_count;
unsigned short flags;
/* These are only valid once writing has begun */
long int relocbase;
/* These members communicate important constants about the symbol table
to GDB's symbol-reading code. These `constants' unfortunately vary
from coff implementation to implementation... */
unsigned local_n_btmask;
unsigned local_n_btshft;
unsigned local_n_tmask;
unsigned local_n_tshift;
unsigned local_symesz;
unsigned local_auxesz;
unsigned local_linesz;
} coff_data_type;
/* We take the address of the first element of a asymbol to ensure that the
* macro is only ever applied to an asymbol. */
#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
/* Functions in coffgen.c. */
extern bfd_target *coff_object_p PARAMS ((bfd *));
extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
extern unsigned int coff_get_symtab_upper_bound PARAMS ((bfd *));
extern unsigned int coff_get_symtab PARAMS ((bfd *, asymbol **));
extern void coff_count_linenumbers PARAMS ((bfd *));
extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *));
extern void coff_renumber_symbols PARAMS ((bfd *));
extern void coff_mangle_symbols PARAMS ((bfd *));
extern void coff_write_symbols PARAMS ((bfd *));
extern void coff_write_linenumbers PARAMS ((bfd *));
extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *));
extern asymbol *coff_section_symbol PARAMS ((bfd *, char *));
extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *));
extern unsigned int coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
extern asymbol *coff_make_empty_symbol PARAMS ((bfd *));
extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *,
bfd_print_symbol_type how));
extern asymbol *coff_make_debug_symbol PARAMS ((bfd *, PTR, unsigned long));
extern boolean coff_find_nearest_line PARAMS ((bfd *,
asection *,
asymbol **,
bfd_vma offset,
CONST char **filename_ptr,
CONST char **functionname_ptr,
unsigned int *line_ptr));
extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc));
extern boolean bfd_coff_reloc16_relax_section PARAMS ((bfd *,
asection *,
asymbol **));
extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
PARAMS ((bfd *, bfd_seclet_type *, bfd_byte *));
extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *,
bfd_seclet_type *));
/* And more taken from the source .. */

133
bfd/libcoff.h
View File

@ -73,7 +73,40 @@ typedef struct coff_tdata
* macro is only ever applied to an asymbol. */
#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
/* Functions in coffgen.c. */
extern bfd_target *coff_object_p PARAMS ((bfd *));
extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
extern unsigned int coff_get_symtab_upper_bound PARAMS ((bfd *));
extern unsigned int coff_get_symtab PARAMS ((bfd *, asymbol **));
extern void coff_count_linenumbers PARAMS ((bfd *));
extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *));
extern void coff_renumber_symbols PARAMS ((bfd *));
extern void coff_mangle_symbols PARAMS ((bfd *));
extern void coff_write_symbols PARAMS ((bfd *));
extern void coff_write_linenumbers PARAMS ((bfd *));
extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *));
extern asymbol *coff_section_symbol PARAMS ((bfd *, char *));
extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *));
extern unsigned int coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
extern asymbol *coff_make_empty_symbol PARAMS ((bfd *));
extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *,
bfd_print_symbol_type how));
extern asymbol *coff_make_debug_symbol PARAMS ((bfd *, PTR, unsigned long));
extern boolean coff_find_nearest_line PARAMS ((bfd *,
asection *,
asymbol **,
bfd_vma offset,
CONST char **filename_ptr,
CONST char **functionname_ptr,
unsigned int *line_ptr));
extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc));
extern boolean bfd_coff_reloc16_relax_section PARAMS ((bfd *,
asection *,
asymbol **));
extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
PARAMS ((bfd *, bfd_seclet_type *, bfd_byte *));
extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *,
bfd_seclet_type *));
/* And more taken from the source .. */
@ -118,7 +151,8 @@ struct lineno_cache_entry *lineno;
/* Have the line numbers been relocated yet ? */
boolean done_lineno;
} coff_symbol_type;
typedef struct {
typedef struct
{
void (*_bfd_coff_swap_aux_in) PARAMS ((
bfd *abfd ,
PTR ext,
@ -173,10 +207,58 @@ typedef struct {
PTR in,
PTR out));
unsigned int _bfd_filhsz;
unsigned int _bfd_aoutsz;
unsigned int _bfd_scnhsz;
unsigned int _bfd_symesz;
unsigned int _bfd_auxesz;
unsigned int _bfd_linesz;
boolean _bfd_coff_long_filenames;
void (*_bfd_coff_swap_filehdr_in) PARAMS ((
bfd *abfd,
PTR ext,
PTR in));
void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
bfd *abfd,
PTR ext,
PTR in));
void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
bfd *abfd,
PTR ext,
PTR in));
boolean (*_bfd_coff_bad_format_hook) PARAMS ((
bfd *abfd,
PTR internal_filehdr));
boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
bfd *abfd,
PTR internal_filehdr));
PTR (*_bfd_coff_mkobject_hook) PARAMS ((
bfd *abfd,
PTR internal_filehdr));
flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
bfd *abfd,
PTR internal_scnhdr));
asection *(*_bfd_make_section_hook) PARAMS ((
bfd *abfd,
char *name));
void (*_bfd_set_alignment_hook) PARAMS ((
bfd *abfd,
asection *sec,
PTR internal_scnhdr));
boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
bfd *abfd));
boolean (*_bfd_coff_symname_in_debug) PARAMS ((
bfd *abfd,
struct internal_syment *sym));
void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
bfd *abfd,
bfd_seclet_type *seclet,
arelent *reloc,
bfd_byte *data,
unsigned int *src_ptr,
unsigned int *dst_ptr));
} bfd_coff_backend_data;
extern bfd_coff_backend_data bfd_coff_std_swap_table;
#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
#define bfd_coff_swap_aux_in(a,e,t,c,i) \
@ -209,3 +291,46 @@ extern bfd_coff_backend_data bfd_coff_std_swap_table;
#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
#define bfd_coff_swap_filehdr_in(abfd, i,o) \
((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
#define bfd_coff_bad_format_hook(abfd, filehdr) \
((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
#define bfd_coff_mkobject_hook(abfd, filehdr)\
((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr))
#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr)\
((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr))
#define bfd_coff_make_section_hook(abfd, name)\
((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name))
#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
#define bfd_coff_slurp_symbol_table(abfd)\
((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
#define bfd_coff_symname_in_debug(abfd, sym)\
((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
#define bfd_coff_reloc16_extra_cases(abfd, seclet, reloc, data, src_ptr, dst_ptr)\
((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
(abfd, seclet, reloc, data, src_ptr, dst_ptr))

409
bfd/reloc16.c Normal file
View File

@ -0,0 +1,409 @@
/* 8 and 16 bit COFF relocation functions, for BFD.
Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/*
Most of this hacked by Steve Chamberlain,
sac@cygnus.com
*/
/* These routines are used by coff-h8300 and coff-z8k to do
relocation. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "seclet.h"
#include "obstack.h"
#include "coff/internal.h"
#include "libcoff.h"
extern bfd_error_vector_type bfd_error_vector;
bfd_vma
DEFUN(bfd_coff_reloc16_get_value,(reloc, seclet),
arelent *reloc AND
bfd_seclet_type *seclet)
{
bfd_vma value;
asymbol *symbol = *(reloc->sym_ptr_ptr);
/* A symbol holds a pointer to a section, and an offset from the
base of the section. To relocate, we find where the section will
live in the output and add that in */
if (symbol->section == &bfd_und_section)
{
/* Ouch, this is an undefined symbol.. */
bfd_error_vector.undefined_symbol(reloc, seclet);
value = symbol->value;
}
else
{
value = symbol->value +
symbol->section->output_offset +
symbol->section->output_section->vma;
}
/* Add the value contained in the relocation */
value += reloc->addend;
return value;
}
static void
DEFUN(perform_slip,(s, slip, input_section, value),
asymbol **s AND
unsigned int slip AND
asection *input_section AND
bfd_vma value)
{
/* Find all symbols past this point, and make them know
what's happened */
while (*s)
{
asymbol *p = *s;
if (p->section == input_section)
{
/* This was pointing into this section, so mangle it */
if (p->value > value)
{
p->value -= slip;
}
}
s++;
}
}
static int
DEFUN(movb1,(input_section, symbols, r, shrink),
asection *input_section AND
asymbol **symbols AND
arelent *r AND
unsigned int shrink)
{
bfd_vma value = bfd_coff_reloc16_get_value(r,0);
if (value >= 0xff00)
{
/* Change the reloc type from 16bit, possible 8 to 8bit
possible 16 */
r->howto = r->howto + 1;
/* The place to relc moves back by one */
r->address -=1;
/* This will be two bytes smaller in the long run */
shrink +=2 ;
perform_slip(symbols, 2, input_section, r->address - shrink +1);
}
return shrink;
}
static int
DEFUN(jmp1,(input_section, symbols, r, shrink),
asection *input_section AND
asymbol **symbols AND
arelent *r AND
unsigned int shrink)
{
bfd_vma value = bfd_coff_reloc16_get_value(r, 0);
bfd_vma dot = input_section->output_section->vma +
input_section->output_offset + r->address;
bfd_vma gap;
/* See if the address we're looking at within 127 bytes of where
we are, if so then we can use a small branch rather than the
jump we were going to */
gap = value - (dot - shrink);
if (-120 < (long)gap && (long)gap < 120 )
{
/* Change the reloc type from 16bit, possible 8 to 8bit
possible 16 */
r->howto = r->howto + 1;
/* The place to relc moves back by one */
r->address -=1;
/* This will be two bytes smaller in the long run */
shrink +=2 ;
perform_slip(symbols, 2, input_section, r->address-shrink +1);
}
return shrink;
}
boolean
DEFUN(bfd_coff_reloc16_relax_section,(abfd, i, symbols),
bfd *abfd AND
asection *i AND
asymbol **symbols)
{
/* Get enough memory to hold the stuff */
bfd *input_bfd = i->owner;
asection *input_section = i;
int shrink = 0 ;
boolean new = false;
bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
input_section);
arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size);
/* Get the relocs and think about them */
if (bfd_canonicalize_reloc(input_bfd,
input_section,
reloc_vector,
symbols))
{
arelent **parent;
for (parent = reloc_vector; *parent; parent++)
{
arelent *r = *parent;
switch (r->howto->type) {
case R_MOVB2:
case R_JMP2:
shrink+=2;
break;
case R_MOVB1:
shrink = movb1(input_section, symbols, r, shrink);
new = true;
break;
case R_JMP1:
shrink = jmp1(input_section, symbols, r, shrink);
new = true;
break;
}
}
}
input_section->_cooked_size -= shrink;
free((char *)reloc_vector);
return new;
}
bfd_byte *
DEFUN(bfd_coff_reloc16_get_relocated_section_contents,(in_abfd, seclet, data),
bfd *in_abfd AND
bfd_seclet_type *seclet AND
bfd_byte *data)
{
/* Get enough memory to hold the stuff */
bfd *input_bfd = seclet->u.indirect.section->owner;
asection *input_section = seclet->u.indirect.section;
bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
input_section);
arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size);
/* read in the section */
bfd_get_section_contents(input_bfd,
input_section,
data,
0,
input_section->_raw_size);
if (bfd_canonicalize_reloc(input_bfd,
input_section,
reloc_vector,
seclet->u.indirect.symbols) )
{
arelent **parent = reloc_vector;
arelent *reloc ;
unsigned int dst_address = 0;
unsigned int src_address = 0;
unsigned int run;
unsigned int idx;
/* Find how long a run we can do */
while (dst_address < seclet->size)
{
reloc = *parent;
if (reloc)
{
/* Note that the relaxing didn't tie up the addresses in the
relocation, so we use the original address to work out the
run of non-relocated data */
run = reloc->address - src_address;
parent++;
}
else
{
run = seclet->size - dst_address;
}
/* Copy the bytes */
for (idx = 0; idx < run; idx++)
{
data[dst_address++] = data[src_address++];
}
/* Now do the relocation */
if (reloc)
{
switch (reloc->howto->type)
{
case R_JMP2:
/* Speciial relaxed type */
{
bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma;
int gap = bfd_coff_reloc16_get_value(reloc,seclet)-dot-1;
if ((gap & ~0xff ) != 0 &&((gap & 0xff00)!= 0xff00)) abort();
bfd_put_8(in_abfd,gap, data+dst_address);
switch (data[dst_address-1])
{
case 0x5e:
/* jsr -> bsr */
bfd_put_8(in_abfd, 0x55, data+dst_address-1);
break;
case 0x5a:
/* jmp ->bra */
bfd_put_8(in_abfd, 0x40, data+dst_address-1);
break;
default:
abort();
}
dst_address++;
src_address+=3;
break;
}
case R_MOVB2:
/* Special relaxed type, there will be a gap between where we
get stuff from and where we put stuff to now
for a mov.b @aa:16 -> mov.b @aa:8
opcode 0x6a 0x0y offset
-> 0x2y off
*/
if (data[dst_address-1] != 0x6a)
abort();
switch (data[src_address] & 0xf0)
{
case 0x00:
/* Src is memory */
data[dst_address-1] = (data[src_address] & 0xf) | 0x20;
break;
case 0x80:
/* Src is reg */
data[dst_address-1] = (data[src_address] & 0xf) | 0x30;
break;
default:
abort();
}
/* the offset must fit ! after all, what was all the relaxing
about ? */
bfd_put_8(in_abfd, bfd_coff_reloc16_get_value(reloc, seclet),
data + dst_address);
/* Note the magic - src goes up by two bytes, but dst by only
one */
dst_address+=1;
src_address+=3;
break;
/* PCrel 8 bits */
case R_PCRBYTE:
{
bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma;
int gap = bfd_coff_reloc16_get_value(reloc,seclet)-dot;
if (gap > 127 || gap < -128)
{
bfd_error_vector.reloc_value_truncated(reloc, seclet);
}
bfd_put_8(in_abfd,gap, data+dst_address);
dst_address++;
src_address++;
break;
}
case R_RELBYTE:
{
unsigned int gap =bfd_coff_reloc16_get_value(reloc,seclet);
if (gap > 0xff && gap < ~0xff)
{
bfd_error_vector.reloc_value_truncated(reloc, seclet);
}
bfd_put_8(in_abfd, gap, data+dst_address);
dst_address+=1;
src_address+=1;
}
break;
case R_JMP1:
/* A relword which would have like to have been a pcrel */
case R_MOVB1:
/* A relword which would like to have been modified but
didn't make it */
case R_RELWORD:
bfd_put_16(in_abfd, bfd_coff_reloc16_get_value(reloc,seclet),
data+dst_address);
dst_address+=2;
src_address+=2;
break;
default:
bfd_coff_reloc16_extra_cases (in_abfd, seclet, reloc, data,
&src_address, &dst_address);
break;
}
}
}
}
free((char *)reloc_vector);
return data;
}