c3eb25fc25
coff-h8300.c, coff-i386.c, coff-i960.c, coff-m68k.c, coff-m88k.c, coff-mips.c, coff-rs6000.c, cpu-h300.c, elf.c, i386aout.c, newos3.c, stab-syms.c, syms.c: All these files have had their #includes altered to point to the new places.
582 lines
18 KiB
Objective-C
582 lines
18 KiB
Objective-C
/* A.out "format 1" file handling code
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Copyright (C) 1990-1991 Free Software Foundation, Inc.
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Written by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "aout/sun4.h"
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#include "libaout.h" /* BFD a.out internal data structures */
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#include "aout/aout64.h"
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#include "aout/stab_gnu.h"
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#include "aout/ar.h"
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/*
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The file @code{aoutf1.h} contains the code for BFD's
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a.out back end. Control over the generated back end is given by these
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two preprocessor names:
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@table @code
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@item ARCH_SIZE
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This value should be either 32 or 64, depending upon the size of an
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int in the target format. It changes the sizes of the structs which
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perform the memory/disk mapping of structures.
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The 64 bit backend may only be used if the host compiler supports 64
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ints (eg long long with gcc), by defining the name @code{HOST_64_BIT} in @code{bfd.h}.
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With this name defined, @emph{all} bfd operations are performed with 64bit
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arithmetic, not just those to a 64bit target.
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@item TARGETNAME
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The name put into the target vector.
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@item
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@end table
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*/
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void (*bfd_error_trap)();
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static bfd_target *sunos4_callback ();
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/*SUPPRESS558*/
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/*SUPPRESS529*/
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bfd_target *
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DEFUN(NAME(sunos,object_p), (abfd),
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bfd *abfd)
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{
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struct external_exec exec_bytes; /* Raw exec header from file */
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struct internal_exec exec; /* Cleaned-up exec header */
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if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
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!= EXEC_BYTES_SIZE) {
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bfd_error = wrong_format;
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return 0;
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}
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exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);
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if (N_BADMAG (exec)) return 0;
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NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec);
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return NAME(aout,some_aout_object_p) (abfd, &exec, sunos4_callback);
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}
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/* Determine the size of a relocation entry, based on the architecture */
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static void
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DEFUN(choose_reloc_size,(abfd),
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bfd *abfd)
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{
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switch (bfd_get_arch(abfd)) {
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case bfd_arch_sparc:
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case bfd_arch_a29k:
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obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
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break;
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default:
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obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
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break;
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}
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}
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/* Set parameters about this a.out file that are machine-dependent.
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This routine is called from some_aout_object_p just before it returns. */
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static bfd_target *
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sunos4_callback (abfd)
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bfd *abfd;
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{
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struct internal_exec *execp = exec_hdr (abfd);
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enum bfd_architecture arch;
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long machine;
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WORK_OUT_FILE_POSITIONS(abfd, execp);
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/* Determine the architecture and machine type of the object file. */
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switch (N_MACHTYPE (*exec_hdr (abfd))) {
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case M_UNKNOWN:
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/* Some Sun3s make magic numbers without cpu types in them, so
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we'll default to the 68020. */
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arch = bfd_arch_m68k;
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machine = 68020;
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break;
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case M_68010:
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case M_HP200:
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arch = bfd_arch_m68k;
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machine = 68010;
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break;
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case M_68020:
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case M_HP300:
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arch = bfd_arch_m68k;
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machine = 68020;
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break;
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case M_SPARC:
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arch = bfd_arch_sparc;
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machine = 0;
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break;
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case M_386:
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arch = bfd_arch_i386;
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machine = 0;
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break;
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case M_29K:
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arch = bfd_arch_a29k;
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machine = 0;
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break;
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case M_HPUX:
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arch = bfd_arch_m68k;
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machine = 0;
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break;
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default:
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arch = bfd_arch_obscure;
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machine = 0;
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break;
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}
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bfd_set_arch_mach(abfd, arch, machine);
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choose_reloc_size(abfd);
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adata(abfd)->page_size = PAGE_SIZE;
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#ifdef SEGMENT_SIZE
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adata(abfd)->segment_size = SEGMENT_SIZE;
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#else
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adata(abfd)->segment_size = PAGE_SIZE;
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#endif
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adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
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return abfd->xvec;
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}
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/* Write an object file in SunOS format.
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Section contents have already been written. We write the
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file header, symbols, and relocation. */
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static boolean
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DEFUN(NAME(aout,sunos4_write_object_contents),
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(abfd),
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bfd *abfd)
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{
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bfd_size_type data_pad = 0;
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struct external_exec exec_bytes;
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struct internal_exec *execp = exec_hdr (abfd);
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execp->a_text = obj_textsec (abfd)->size;
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/* Magic number, maestro, please! */
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switch (bfd_get_arch(abfd)) {
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case bfd_arch_m68k:
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switch (bfd_get_mach(abfd)) {
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case 68010:
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N_SET_MACHTYPE(*execp, M_68010);
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break;
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default:
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case 68020:
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N_SET_MACHTYPE(*execp, M_68020);
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break;
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}
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break;
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case bfd_arch_sparc:
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N_SET_MACHTYPE(*execp, M_SPARC);
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break;
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case bfd_arch_i386:
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N_SET_MACHTYPE(*execp, M_386);
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break;
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case bfd_arch_a29k:
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N_SET_MACHTYPE(*execp, M_29K);
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break;
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default:
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N_SET_MACHTYPE(*execp, M_UNKNOWN);
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}
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choose_reloc_size(abfd);
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/* FIXME */
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N_SET_FLAGS (*execp, 0x1);
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WRITE_HEADERS(abfd, execp);
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return true;
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}
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/* core files */
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#define CORE_MAGIC 0x080456
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#define CORE_NAMELEN 16
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/* The core structure is taken from the Sun documentation.
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Unfortunately, they don't document the FPA structure, or at least I
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can't find it easily. Fortunately the core header contains its own
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length. So this shouldn't cause problems, except for c_ucode, which
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so far we don't use but is easy to find with a little arithmetic. */
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/* But the reg structure can be gotten from the SPARC processor handbook.
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This really should be in a GNU include file though so that gdb can use
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the same info. */
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struct regs {
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int r_psr;
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int r_pc;
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int r_npc;
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int r_y;
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int r_g1;
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int r_g2;
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int r_g3;
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int r_g4;
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int r_g5;
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int r_g6;
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int r_g7;
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int r_o0;
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int r_o1;
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int r_o2;
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int r_o3;
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int r_o4;
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int r_o5;
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int r_o6;
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int r_o7;
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};
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/* Taken from Sun documentation: */
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/* FIXME: It's worse than we expect. This struct contains TWO substructs
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neither of whose size we know, WITH STUFF IN BETWEEN THEM! We can't
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even portably access the stuff in between! */
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struct external_sparc_core {
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int c_magic; /* Corefile magic number */
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int c_len; /* Sizeof (struct core) */
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#define SPARC_CORE_LEN 432
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int c_regs[19]; /* General purpose registers -- MACHDEP SIZE */
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struct external_exec c_aouthdr; /* A.out header */
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int c_signo; /* Killing signal, if any */
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int c_tsize; /* Text size (bytes) */
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int c_dsize; /* Data size (bytes) */
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int c_ssize; /* Stack size (bytes) */
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char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
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double fp_stuff[1]; /* external FPU state (size unknown by us) */
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/* The type "double" is critical here, for alignment.
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SunOS declares a struct here, but the struct's alignment
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is double since it contains doubles. */
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int c_ucode; /* Exception no. from u_code */
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/* (this member is not accessible by name since we don't
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portably know the size of fp_stuff.) */
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};
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struct external_sun3_core {
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int c_magic; /* Corefile magic number */
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int c_len; /* Sizeof (struct core) */
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#define SUN3_CORE_LEN 826 /* As of SunOS 4.1.1 */
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int c_regs[18]; /* General purpose registers -- MACHDEP SIZE */
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struct external_exec c_aouthdr; /* A.out header */
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int c_signo; /* Killing signal, if any */
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int c_tsize; /* Text size (bytes) */
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int c_dsize; /* Data size (bytes) */
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int c_ssize; /* Stack size (bytes) */
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char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
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double fp_stuff[1]; /* external FPU state (size unknown by us) */
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/* The type "double" is critical here, for alignment.
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SunOS declares a struct here, but the struct's alignment
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is double since it contains doubles. */
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int c_ucode; /* Exception no. from u_code */
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/* (this member is not accessible by name since we don't
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portably know the size of fp_stuff.) */
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};
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struct internal_sunos_core {
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int c_magic; /* Corefile magic number */
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int c_len; /* Sizeof (struct core) */
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long c_regs_pos; /* file offset of General purpose registers */
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int c_regs_size; /* size of General purpose registers */
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struct internal_exec c_aouthdr; /* A.out header */
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int c_signo; /* Killing signal, if any */
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int c_tsize; /* Text size (bytes) */
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int c_dsize; /* Data size (bytes) */
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int c_ssize; /* Stack size (bytes) */
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long c_stacktop; /* Stack top (address) */
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char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
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long fp_stuff_pos; /* file offset of external FPU state (regs) */
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int fp_stuff_size; /* Size of it */
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int c_ucode; /* Exception no. from u_code */
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};
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/* byte-swap in the Sun-3 core structure */
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static void
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DEFUN(swapcore_sun3,(abfd, ext, intcore),
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bfd *abfd AND
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char *ext AND
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struct internal_sunos_core *intcore)
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{
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struct external_sun3_core *extcore = (struct external_sun3_core *)ext;
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intcore->c_magic = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_magic);
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intcore->c_len = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_len );
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intcore->c_regs_pos = (long) (((struct external_sun3_core *)0)->c_regs);
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intcore->c_regs_size = sizeof (extcore->c_regs);
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NAME(aout,swap_exec_header_in)(abfd, &extcore->c_aouthdr,&intcore->c_aouthdr);
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intcore->c_signo = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_signo);
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intcore->c_tsize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_tsize);
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intcore->c_dsize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_dsize);
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intcore->c_ssize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_ssize);
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bcopy (extcore->c_cmdname, intcore->c_cmdname, sizeof (intcore->c_cmdname));
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intcore->fp_stuff_pos = (long) (((struct external_sun3_core *)0)->fp_stuff);
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/* FP stuff takes up whole rest of struct, except c_ucode. */
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intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) -
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(file_ptr)(((struct external_sun3_core *)0)->fp_stuff);
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/* Ucode is the last thing in the struct -- just before the end */
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intcore->c_ucode =
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bfd_h_get_32 (abfd,
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intcore->c_len - sizeof (extcore->c_ucode) + (unsigned char *)extcore);
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intcore->c_stacktop = 0x0E000000; /* By experimentation */
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}
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/* byte-swap in the Sparc core structure */
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static void
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DEFUN(swapcore_sparc,(abfd, ext, intcore),
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bfd *abfd AND
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char *ext AND
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struct internal_sunos_core *intcore)
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{
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struct external_sparc_core *extcore = (struct external_sparc_core *)ext;
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intcore->c_magic = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_magic);
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intcore->c_len = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_len );
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intcore->c_regs_pos = (long) (((struct external_sparc_core *)0)->c_regs);
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intcore->c_regs_size = sizeof (extcore->c_regs);
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NAME(aout,swap_exec_header_in)(abfd, &extcore->c_aouthdr,&intcore->c_aouthdr);
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intcore->c_signo = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_signo);
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intcore->c_tsize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_tsize);
|
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intcore->c_dsize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_dsize);
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intcore->c_ssize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_ssize);
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bcopy (extcore->c_cmdname, intcore->c_cmdname, sizeof (intcore->c_cmdname));
|
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intcore->fp_stuff_pos = (long) (((struct external_sparc_core *)0)->fp_stuff);
|
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/* FP stuff takes up whole rest of struct, except c_ucode. */
|
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intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) -
|
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(file_ptr)(((struct external_sparc_core *)0)->fp_stuff);
|
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/* Ucode is the last thing in the struct -- just before the end */
|
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intcore->c_ucode =
|
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bfd_h_get_32 (abfd,
|
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intcore->c_len - sizeof (extcore->c_ucode) + (unsigned char *)extcore);
|
||
/* Supposedly the user stack grows downward from the bottom of kernel memory.
|
||
Presuming that this remains true, this definition will work. */
|
||
#define SPARC_USRSTACK (-(128*1024*1024))
|
||
intcore->c_stacktop = SPARC_USRSTACK; /* By experimentation */
|
||
}
|
||
|
||
/* need this cast because ptr is really void * */
|
||
#define core_hdr(bfd) (((struct suncoredata *) (bfd->tdata))->hdr)
|
||
#define core_datasec(bfd) (((struct suncoredata *) ((bfd)->tdata))->data_section)
|
||
#define core_stacksec(bfd) (((struct suncoredata*)((bfd)->tdata))->stack_section)
|
||
#define core_regsec(bfd) (((struct suncoredata *) ((bfd)->tdata))->reg_section)
|
||
#define core_reg2sec(bfd) (((struct suncoredata *) ((bfd)->tdata))->reg2_section)
|
||
|
||
/* These are stored in the bfd's tdata */
|
||
struct suncoredata {
|
||
struct internal_sunos_core *hdr; /* core file header */
|
||
asection *data_section;
|
||
asection *stack_section;
|
||
asection *reg_section;
|
||
asection *reg2_section;
|
||
};
|
||
|
||
static bfd_target *
|
||
DEFUN(sunos4_core_file_p,(abfd),
|
||
bfd *abfd)
|
||
{
|
||
unsigned char longbuf[4]; /* Raw bytes of various header fields */
|
||
int core_size;
|
||
int core_mag;
|
||
struct internal_sunos_core *core;
|
||
char *extcore;
|
||
struct mergem {
|
||
struct suncoredata suncoredata;
|
||
struct internal_sunos_core internal_sunos_core;
|
||
char external_core[1];
|
||
} *mergem;
|
||
|
||
bfd_error = system_call_error;
|
||
|
||
if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) !=
|
||
sizeof (longbuf))
|
||
return 0;
|
||
core_mag = bfd_h_get_32 (abfd, longbuf);
|
||
|
||
if (core_mag != CORE_MAGIC) return 0;
|
||
|
||
/* SunOS core headers can vary in length; second word is size; */
|
||
if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) !=
|
||
sizeof (longbuf))
|
||
return 0;
|
||
core_size = bfd_h_get_32 (abfd, longbuf);
|
||
/* Sanity check */
|
||
if (core_size > 20000)
|
||
return 0;
|
||
|
||
if (bfd_seek (abfd, 0L, false) < 0) return 0;
|
||
|
||
mergem = (struct mergem *)bfd_zalloc (abfd, core_size + sizeof (struct mergem));
|
||
if (mergem == NULL) {
|
||
bfd_error = no_memory;
|
||
return 0;
|
||
}
|
||
|
||
extcore = mergem->external_core;
|
||
|
||
if ((bfd_read ((PTR) extcore, 1, core_size, abfd)) != core_size) {
|
||
bfd_error = system_call_error;
|
||
bfd_release (abfd, (char *)mergem);
|
||
return 0;
|
||
}
|
||
|
||
/* Validate that it's a core file we know how to handle, due to sun
|
||
botching the positioning of registers and other fields in a machine
|
||
dependent way. */
|
||
core = &mergem->internal_sunos_core;
|
||
switch (core_size) {
|
||
case SPARC_CORE_LEN:
|
||
swapcore_sparc (abfd, extcore, core);
|
||
break;
|
||
case SUN3_CORE_LEN:
|
||
swapcore_sun3 (abfd, extcore, core);
|
||
break;
|
||
default:
|
||
bfd_error = system_call_error; /* FIXME */
|
||
bfd_release (abfd, (char *)mergem);
|
||
return 0;
|
||
}
|
||
|
||
set_tdata (abfd, &mergem->suncoredata);
|
||
core_hdr (abfd) = core;
|
||
|
||
/* create the sections. This is raunchy, but bfd_close wants to reclaim
|
||
them */
|
||
core_stacksec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
|
||
if (core_stacksec (abfd) == NULL) {
|
||
loser:
|
||
bfd_error = no_memory;
|
||
bfd_release (abfd, (char *)mergem);
|
||
return 0;
|
||
}
|
||
core_datasec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
|
||
if (core_datasec (abfd) == NULL) {
|
||
loser1:
|
||
bfd_release (abfd, core_stacksec (abfd));
|
||
goto loser;
|
||
}
|
||
core_regsec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
|
||
if (core_regsec (abfd) == NULL) {
|
||
loser2:
|
||
bfd_release (abfd, core_datasec (abfd));
|
||
goto loser1;
|
||
}
|
||
core_reg2sec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
|
||
if (core_reg2sec (abfd) == NULL) {
|
||
bfd_release (abfd, core_regsec (abfd));
|
||
goto loser2;
|
||
}
|
||
|
||
core_stacksec (abfd)->name = ".stack";
|
||
core_datasec (abfd)->name = ".data";
|
||
core_regsec (abfd)->name = ".reg";
|
||
core_reg2sec (abfd)->name = ".reg2";
|
||
|
||
core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
|
||
core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
|
||
core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
|
||
core_reg2sec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
|
||
|
||
core_stacksec (abfd)->size = core->c_ssize;
|
||
core_datasec (abfd)->size = core->c_dsize;
|
||
core_regsec (abfd)->size = core->c_regs_size;
|
||
core_reg2sec (abfd)->size = core->fp_stuff_size;
|
||
|
||
core_stacksec (abfd)->vma = (core->c_stacktop - core->c_ssize);
|
||
core_datasec (abfd)->vma = N_DATADDR(core->c_aouthdr);
|
||
core_regsec (abfd)->vma = 0;
|
||
core_reg2sec (abfd)->vma = 0;
|
||
|
||
core_stacksec (abfd)->filepos = core->c_len + core->c_dsize;
|
||
core_datasec (abfd)->filepos = core->c_len;
|
||
/* We'll access the regs afresh in the core file, like any section: */
|
||
core_regsec (abfd)->filepos = (file_ptr)core->c_regs_pos;
|
||
core_reg2sec (abfd)->filepos = (file_ptr)core->fp_stuff_pos;
|
||
|
||
/* Align to word at least */
|
||
core_stacksec (abfd)->alignment_power = 2;
|
||
core_datasec (abfd)->alignment_power = 2;
|
||
core_regsec (abfd)->alignment_power = 2;
|
||
core_reg2sec (abfd)->alignment_power = 2;
|
||
|
||
abfd->sections = core_stacksec (abfd);
|
||
core_stacksec (abfd)->next = core_datasec (abfd);
|
||
core_datasec (abfd)->next = core_regsec (abfd);
|
||
core_regsec (abfd)->next = core_reg2sec (abfd);
|
||
|
||
abfd->section_count = 4;
|
||
|
||
return abfd->xvec;
|
||
}
|
||
|
||
static char *sunos4_core_file_failing_command (abfd)
|
||
bfd *abfd;
|
||
{
|
||
return core_hdr (abfd)->c_cmdname;
|
||
}
|
||
|
||
static int
|
||
DEFUN(sunos4_core_file_failing_signal,(abfd),
|
||
bfd *abfd)
|
||
{
|
||
return core_hdr (abfd)->c_signo;
|
||
}
|
||
|
||
static boolean
|
||
DEFUN(sunos4_core_file_matches_executable_p, (core_bfd, exec_bfd),
|
||
bfd *core_bfd AND
|
||
bfd *exec_bfd)
|
||
{
|
||
if (core_bfd->xvec != exec_bfd->xvec) {
|
||
bfd_error = system_call_error;
|
||
return false;
|
||
}
|
||
|
||
return (bcmp ((char *)&core_hdr (core_bfd)->c_aouthdr,
|
||
(char *) exec_hdr (exec_bfd),
|
||
sizeof (struct internal_exec)) == 0) ? true : false;
|
||
}
|
||
|
||
#define MY_core_file_failing_command sunos4_core_file_failing_command
|
||
#define MY_core_file_failing_signal sunos4_core_file_failing_signal
|
||
#define MY_core_file_matches_executable_p sunos4_core_file_matches_executable_p
|
||
|
||
#define MY_bfd_debug_info_start bfd_void
|
||
#define MY_bfd_debug_info_end bfd_void
|
||
#define MY_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
|
||
#define MY_object_p NAME(sunos,object_p)
|
||
#define MY_core_file_p sunos4_core_file_p
|
||
#define MY_write_object_contents NAME(aout,sunos4_write_object_contents)
|
||
|
||
#define TARGET_IS_BIG_ENDIAN_P
|
||
|
||
#include "aout-target.h"
|