283 lines
7.8 KiB
C
283 lines
7.8 KiB
C
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/* BFD back-end for AIX on PS/2 core files.
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This was based on trad-core.c, which was written by John Gilmore of
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Cygnus Support.
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Copyright (C) 1988-2022 Free Software Foundation, Inc.
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Written by Minh Tran-Le <TRANLE@INTELLICORP.COM>.
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Converted to back end form by Ian Lance Taylor <ian@cygnus.com>.
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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 3 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., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "coff/i386.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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#include <signal.h>
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#if defined (_AIX) && defined (_I386)
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#define NOCHECKS /* This is for coredump.h. */
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#define _h_USER /* Avoid including user.h from coredump.h. */
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#include <uinfo.h>
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#include <sys/i386/coredump.h>
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#endif /* _AIX && _I386 */
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/* Maybe this could work on some other i386 but I have not tried it
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* mtranle@paris - Tue Sep 24 12:49:35 1991
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*/
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#ifndef COR_MAGIC
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# define COR_MAGIC "core"
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#endif
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/* Need this cast because ptr is really void *. */
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#define core_hdr(bfd) \
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(((bfd->tdata.trad_core_data))->hdr)
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#define core_section(bfd,n) \
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(((bfd)->tdata.trad_core_data)->sections[n])
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#define core_regsec(bfd) \
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(((bfd)->tdata.trad_core_data)->reg_section)
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#define core_reg2sec(bfd) \
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(((bfd)->tdata.trad_core_data)->reg2_section)
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/* These are stored in the bfd's tdata. */
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struct trad_core_struct
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{
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struct corehdr *hdr; /* core file header */
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asection *reg_section;
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asection *reg2_section;
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asection *sections[MAX_CORE_SEGS];
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};
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static bfd_cleanup
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aix386_core_file_p (bfd *abfd)
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{
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int i, n;
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unsigned char longbuf[4]; /* Raw bytes of various header fields */
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bfd_size_type core_size = sizeof (struct corehdr);
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size_t amt;
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struct corehdr *core;
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struct mergem
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{
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struct trad_core_struct coredata;
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struct corehdr internal_core;
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} *mergem;
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flagword flags;
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amt = sizeof (longbuf);
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if (bfd_bread (longbuf, amt, abfd) != amt)
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{
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if (bfd_get_error () != bfd_error_system_call)
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bfd_set_error (bfd_error_wrong_format);
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return 0;
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}
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if (strncmp (longbuf, COR_MAGIC, 4))
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return 0;
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if (bfd_seek (abfd, (file_ptr) 0, 0) != 0)
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return 0;
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amt = sizeof (struct mergem);
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mergem = (struct mergem *) bfd_zalloc (abfd, amt);
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if (mergem == NULL)
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return 0;
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core = &mergem->internal_core;
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if ((bfd_bread (core, core_size, abfd)) != core_size)
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{
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if (bfd_get_error () != bfd_error_system_call)
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bfd_set_error (bfd_error_wrong_format);
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loser:
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bfd_release (abfd, (char *) mergem);
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abfd->tdata.any = NULL;
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bfd_section_list_clear (abfd);
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return 0;
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}
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set_tdata (abfd, &mergem->coredata);
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core_hdr (abfd) = core;
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/* Create the sections. */
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flags = SEC_HAS_CONTENTS;
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core_regsec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".reg",
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flags);
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if (core_regsec (abfd) == NULL)
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goto loser;
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core_regsec (abfd)->size = sizeof (core->cd_regs);
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core_regsec (abfd)->vma = (bfd_vma) -1;
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/* We'll access the regs afresh in the core file, like any section. */
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core_regsec (abfd)->filepos =
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(file_ptr) offsetof (struct corehdr, cd_regs[0]);
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flags = SEC_HAS_CONTENTS;
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core_reg2sec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".reg2",
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flags);
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if (core_reg2sec (abfd) == NULL)
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/* bfd_release frees everything allocated after it's arg. */
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goto loser;
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core_reg2sec (abfd)->size = sizeof (core->cd_fpregs);
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core_reg2sec (abfd)->vma = (bfd_vma) -1;
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core_reg2sec (abfd)->filepos =
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(file_ptr) offsetof (struct corehdr, cd_fpregs);
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for (i = 0, n = 0; (i < MAX_CORE_SEGS) && (core->cd_segs[i].cs_type); i++)
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{
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const char *sname;
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flagword flags;
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if (core->cd_segs[i].cs_offset == 0)
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continue;
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switch (core->cd_segs[i].cs_type)
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{
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case COR_TYPE_DATA:
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sname = ".data";
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flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
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break;
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case COR_TYPE_STACK:
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sname = ".stack";
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flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
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break;
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case COR_TYPE_LIBDATA:
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sname = ".libdata";
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flags = SEC_ALLOC + SEC_HAS_CONTENTS;
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break;
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case COR_TYPE_WRITE:
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sname = ".writeable";
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flags = SEC_ALLOC + SEC_HAS_CONTENTS;
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break;
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case COR_TYPE_MSC:
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sname = ".misc";
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flags = SEC_ALLOC + SEC_HAS_CONTENTS;
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break;
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default:
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sname = ".unknown";
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flags = SEC_ALLOC + SEC_HAS_CONTENTS;
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break;
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}
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core_section (abfd, n) = bfd_make_section_anyway_with_flags (abfd,
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sname,
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flags);
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if (core_section (abfd, n) == NULL)
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goto loser;
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core_section (abfd, n)->size = core->cd_segs[i].cs_len;
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core_section (abfd, n)->vma = core->cd_segs[i].cs_address;
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core_section (abfd, n)->filepos = core->cd_segs[i].cs_offset;
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core_section (abfd, n)->alignment_power = 2;
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n++;
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}
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return _bfd_no_cleanup;
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}
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static char *
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aix386_core_file_failing_command (bfd *abfd)
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{
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return core_hdr (abfd)->cd_comm;
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}
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static int
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aix386_core_file_failing_signal (bfd *abfd)
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{
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return core_hdr (abfd)->cd_cursig;
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}
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#define aix386_core_file_matches_executable_p generic_core_file_matches_executable_p
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#define aix386_core_file_pid _bfd_nocore_core_file_pid
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/* If somebody calls any byte-swapping routines, shoot them. */
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static void
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swap_abort (void)
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{
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/* This way doesn't require any declaration for ANSI to fuck up. */
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abort ();
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}
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#define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
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#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
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#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
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#define NO_GET64 ((uint64_t (*) (const void *)) swap_abort)
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#define NO_PUT64 ((void (*) (uint64_t, void *)) swap_abort)
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#define NO_GETS64 ((int64_t (*) (const void *)) swap_abort)
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const bfd_target core_aix386_vec =
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{
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"aix386-core",
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bfd_target_unknown_flavour,
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BFD_ENDIAN_BIG, /* target byte order */
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BFD_ENDIAN_BIG, /* target headers byte order */
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(HAS_RELOC | EXEC_P | /* object flags */
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HAS_LINENO | HAS_DEBUG |
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HAS_SYMS | HAS_LOCALS | WP_TEXT),
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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0, /* leading underscore */
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' ', /* ar_pad_char */
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16, /* ar_max_namelen */
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0, /* match priority. */
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TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
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NO_GET64, NO_GETS64, NO_PUT64,
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NO_GET, NO_GETS, NO_PUT,
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NO_GET, NO_GETS, NO_PUT, /* data */
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NO_GET64, NO_GETS64, NO_PUT64,
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NO_GET, NO_GETS, NO_PUT,
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NO_GET, NO_GETS, NO_PUT, /* hdrs */
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{ /* bfd_check_format */
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_bfd_dummy_target,
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_bfd_dummy_target,
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_bfd_dummy_target,
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aix386_core_file_p
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},
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{ /* bfd_create_object */
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error
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},
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{ /* bfd_write_contents */
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error
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},
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BFD_JUMP_TABLE_GENERIC (_bfd_generic),
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BFD_JUMP_TABLE_COPY (_bfd_generic),
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BFD_JUMP_TABLE_CORE (aix386),
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BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
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BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
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BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
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BFD_JUMP_TABLE_WRITE (_bfd_generic),
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BFD_JUMP_TABLE_LINK (_bfd_nolink),
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BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
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NULL,
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NULL
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};
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