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- /* BFD back-end for AIX on PS/2 core files.
- This was based on trad-core.c, which was written by John Gilmore of
- Cygnus Support.
- Copyright 1988, 1989, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
- Written by Minh Tran-Le <TRANLE@INTELLICORP.COM>.
- Converted to back end form by Ian Lance Taylor <ian@cygnus.com>.
-
- 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "libbfd.h"
- #include "obstack.h"
- #include "coff/i386.h"
- #include "coff/internal.h"
- #include "libcoff.h"
-
- #include <stdio.h>
- #include <stddef.h>
- #include <signal.h>
-
- #include <errno.h>
-
- #if defined (_AIX) && defined (_I386)
- #define NOCHECKS /* this is for coredump.h */
- #define _h_USER /* avoid including user.h from coredump.h */
- #include <uinfo.h>
- #include <sys/i386/coredump.h>
- #endif /* _AIX && _I386 */
-
- /* maybe this could work on some other i386 but I have not tried it
- * mtranle@paris - Tue Sep 24 12:49:35 1991
- */
-
- #ifndef COR_MAGIC
- # define COR_MAGIC "core"
- #endif
-
- /* need this cast because ptr is really void * */
- #define core_hdr(bfd) \
- (((bfd->tdata.trad_core_data))->hdr)
- #define core_section(bfd,n) \
- (((bfd)->tdata.trad_core_data)->sections[n])
- #define core_regsec(bfd) \
- (((bfd)->tdata.trad_core_data)->reg_section)
- #define core_reg2sec(bfd) \
- (((bfd)->tdata.trad_core_data)->reg2_section)
-
- /* These are stored in the bfd's tdata */
- struct trad_core_struct {
- struct corehdr *hdr; /* core file header */
- asection *reg_section;
- asection *reg2_section;
- asection *sections[MAX_CORE_SEGS];
- };
-
- static const bfd_target *
- aix386_core_file_p (abfd)
- bfd *abfd;
- {
- int i,n;
- unsigned char longbuf[4]; /* Raw bytes of various header fields */
- int core_size = sizeof (struct corehdr);
- struct corehdr *core;
- struct mergem {
- struct trad_core_struct coredata;
- struct corehdr internal_core;
- } *mergem;
-
- if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf))
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
-
- if (strncmp(longbuf,COR_MAGIC,4)) return 0;
-
- if (bfd_seek (abfd, 0L, false) < 0) return 0;
-
- mergem = (struct mergem *)bfd_zalloc (abfd, sizeof (struct mergem));
- if (mergem == NULL)
- return 0;
-
- core = &mergem->internal_core;
-
- if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size)
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
- bfd_release (abfd, (char *)mergem);
- return 0;
- }
-
- set_tdata (abfd, &mergem->coredata);
- core_hdr (abfd) = core;
-
- /* create the sections. This is raunchy, but bfd_close wants to reclaim
- them */
- core_regsec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
- if (core_regsec (abfd) == NULL)
- {
- loser:
- bfd_release (abfd, (char *)mergem);
- return 0;
- }
- core_reg2sec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
- if (core_reg2sec (abfd) == NULL)
- {
- loser1:
- bfd_release (abfd, core_regsec (abfd));
- goto loser;
- }
-
- for (i=0, n=0 ; (i < MAX_CORE_SEGS) && (core->cd_segs[i].cs_type) ; i++)
- {
- if (core->cd_segs[i].cs_offset == 0)
- continue;
- core_section (abfd,n) =
- (asection *) bfd_zalloc (abfd, sizeof (asection));
- if (core_section (abfd,n) == NULL)
- {
- int j;
- if (n > 0)
- {
- for (j=0; j < n; j++)
- bfd_release (abfd, core_section(abfd, j));
- }
- bfd_release (abfd, (char *)mergem);
- goto loser1;
- }
-
- switch (core->cd_segs[i].cs_type)
- {
- case COR_TYPE_DATA:
- core_section (abfd, n)->name = ".data";
- core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD +
- SEC_HAS_CONTENTS);
- break;
- case COR_TYPE_STACK:
- core_section (abfd, n)->name = ".stack";
- core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD +
- SEC_HAS_CONTENTS);
- break;
- case COR_TYPE_LIBDATA:
- core_section (abfd, n)->name = ".libdata";
- core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
- break;
- case COR_TYPE_WRITE:
- core_section (abfd, n)->name = ".writeable";
- core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
- break;
- case COR_TYPE_MSC:
- core_section (abfd, n)->name = ".misc";
- core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
- break;
- default:
- core_section (abfd, n)->name = ".unknown";
- core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
- break;
- }
- core_section (abfd, n)->_raw_size = core->cd_segs[i].cs_len;
- core_section (abfd, n)->vma = core->cd_segs[i].cs_address;
- core_section (abfd, n)->filepos = core->cd_segs[i].cs_offset;
- core_section (abfd, n)->alignment_power = 2;
- core_section (abfd, n)->next = NULL;
- if (n > 0)
- core_section (abfd, (n-1))->next = core_section (abfd, n);
-
- abfd->section_count = ++n;
- }
-
- core_regsec (abfd)->name = ".reg";
- core_reg2sec (abfd)->name = ".reg2";
-
- core_regsec (abfd)->flags = SEC_HAS_CONTENTS;
- core_reg2sec (abfd)->flags = SEC_HAS_CONTENTS;
-
- core_regsec (abfd)->_raw_size = sizeof(core->cd_regs);
- core_reg2sec (abfd)->_raw_size = sizeof(core->cd_fpregs);
-
- core_regsec (abfd)->vma = -1;
- core_reg2sec (abfd)->vma = -1;
-
- /* We'll access the regs afresh in the core file, like any section: */
- core_regsec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,cd_regs[0]);
- core_reg2sec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,
- cd_fpregs);
-
- /* add the 2 reg fake sections to abfd */
- abfd->section_count += 2;
- abfd->sections = core_regsec (abfd);
- core_regsec (abfd)->next = core_reg2sec (abfd);
- core_reg2sec (abfd)->next = core_section (abfd, 0);
-
- return abfd->xvec;
- }
-
- static char *
- aix386_core_file_failing_command (abfd)
- bfd *abfd;
- {
- return core_hdr (abfd)->cd_comm;
- }
-
- static int
- aix386_core_file_failing_signal (abfd)
- bfd *abfd;
- {
- return core_hdr (abfd)->cd_cursig;
- }
-
- static boolean
- aix386_core_file_matches_executable_p (core_bfd, exec_bfd)
- bfd *core_bfd;
- bfd *exec_bfd;
- {
- return true; /* FIXME, We have no way of telling at this
- point */
- }
-
- /* If somebody calls any byte-swapping routines, shoot them. */
- void
- swap_abort()
- {
- abort(); /* This way doesn't require any declaration for ANSI to fuck up */
- }
- #define NO_GET ((PROTO(bfd_vma, (*), ( const bfd_byte *))) swap_abort )
- #define NO_GETS ((PROTO(bfd_signed_vma, (*), (const bfd_byte *))) swap_abort )
- #define NO_PUT ((PROTO(void, (*), (bfd_vma, bfd_byte *))) swap_abort )
-
- const bfd_target aix386_core_vec =
- {
- "aix386-core",
- bfd_target_unknown_flavour,
- BFD_ENDIAN_BIG, /* target byte order */
- BFD_ENDIANG_BIG, /* target headers byte order */
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- 0, /* leading underscore */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- NO_GET, NO_GETS, NO_PUT,
- NO_GET, NO_GETS, NO_PUT,
- NO_GET, NO_GETS, NO_PUT, /* data */
- NO_GET, NO_GETS, NO_PUT,
- NO_GET, NO_GETS, NO_PUT,
- NO_GET, NO_GETS, NO_PUT, /* hdrs */
-
- {_bfd_dummy_target, _bfd_dummy_target,
- _bfd_dummy_target, aix386_core_file_p},
- {bfd_false, bfd_false, /* bfd_create_object */
- bfd_false, bfd_false},
- {bfd_false, bfd_false, /* bfd_write_contents */
- bfd_false, bfd_false},
-
- BFD_JUMP_TABLE_GENERIC (_bfd_generic),
- BFD_JUMP_TABLE_COPY (_bfd_generic),
- BFD_JUMP_TABLE_CORE (aix386),
- BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
- BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
- BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
- BFD_JUMP_TABLE_WRITE (_bfd_generic),
- BFD_JUMP_TABLE_LINK (_bfd_nolink),
- BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
-
- (PTR) 0
- };
-