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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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* To use this file on a particular host, configure the host with these
- parameters in the config/h-HOST file:
-
- HDEFINES=-DAIX386_CORE=1
- HDEPFILES=aix386-core.o
- */
-
- #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 bfd_target *
- DEFUN(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;
-
- bfd_error = system_call_error;
-
- if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf))
- 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)
- {
- bfd_error = no_memory;
- return 0;
- }
-
- core = &mergem->internal_core;
-
- if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size)
- {
- bfd_error = system_call_error;
- 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_error = no_memory;
- 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_ALLOC + SEC_HAS_CONTENTS;
- core_reg2sec (abfd)->flags = SEC_ALLOC + 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);
- 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 *
- DEFUN(aix386_core_file_failing_command,(abfd),
- bfd *abfd)
- {
- return core_hdr (abfd)->cd_comm;
- }
-
- static int
- DEFUN(aix386_core_file_failing_signal,(abfd),
- bfd *abfd)
- {
- return core_hdr (abfd)->cd_cursig;
- }
-
- static boolean
- DEFUN(aix386_core_file_matches_executable_p, (core_bfd, exec_bfd),
- bfd *core_bfd AND
- bfd *exec_bfd)
- {
- return true; /* FIXME, We have no way of telling at this
- point */
- }
-
- /* No archive file support via this BFD */
- #define aix386_openr_next_archived_file bfd_generic_openr_next_archived_file
- #define aix386_generic_stat_arch_elt bfd_generic_stat_arch_elt
- #define aix386_slurp_armap bfd_false
- #define aix386_slurp_extended_name_table bfd_true
- #define aix386_write_armap (PROTO (boolean, (*), \
- (bfd *arch, unsigned int elength, struct orl *map, \
- unsigned int orl_count, int stridx))) bfd_false
- #define aix386_truncate_arname bfd_dont_truncate_arname
-
- #define aix386_close_and_cleanup bfd_generic_close_and_cleanup
- #define aix386_set_section_contents (PROTO(boolean, (*), \
- (bfd *abfd, asection *section, PTR data, file_ptr offset, \
- bfd_size_type count))) bfd_false
- #define aix386_get_section_contents bfd_generic_get_section_contents
- #define aix386_new_section_hook (PROTO (boolean, (*), \
- (bfd *, sec_ptr))) bfd_true
- #define aix386_get_symtab_upper_bound bfd_0u
- #define aix386_get_symtab (PROTO (unsigned int, (*), \
- (bfd *, struct symbol_cache_entry **))) bfd_0u
- #define aix386_get_reloc_upper_bound (PROTO (unsigned int, (*), \
- (bfd *, sec_ptr))) bfd_0u
- #define aix386_canonicalize_reloc (PROTO (unsigned int, (*), \
- (bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0u
- #define aix386_make_empty_symbol (PROTO ( \
- struct symbol_cache_entry *, (*), (bfd *))) bfd_false
- #define aix386_print_symbol (PROTO (void, (*), \
- (bfd *, PTR, struct symbol_cache_entry *, \
- bfd_print_symbol_type))) bfd_false
- #define aix386_get_lineno (PROTO (alent *, (*), \
- (bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
- #define aix386_set_arch_mach (PROTO (boolean, (*), \
- (bfd *, enum bfd_architecture, unsigned long))) bfd_false
- #define aix386_find_nearest_line (PROTO (boolean, (*), \
- (bfd *abfd, struct sec *section, \
- struct symbol_cache_entry **symbols,bfd_vma offset, \
- CONST char **file, CONST char **func, unsigned int *line))) bfd_false
- #define aix386_sizeof_headers (PROTO (int, (*), \
- (bfd *, boolean))) bfd_0
-
- #define aix386_bfd_debug_info_start bfd_void
- #define aix386_bfd_debug_info_end bfd_void
- #define aix386_bfd_debug_info_accumulate (PROTO (void, (*), \
- (bfd *, struct sec *))) bfd_void
- #define aix386_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
- #define aix386_bfd_relax_section bfd_generic_relax_section
- #define aix386_bfd_seclet_link \
- ((boolean (*) PARAMS ((bfd *, PTR, boolean))) bfd_false)
- #define aix386_bfd_reloc_type_lookup \
- ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
- #define aix386_bfd_make_debug_symbol \
- ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
-
- /* 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, (*), ( bfd_byte *))) swap_abort )
- #define NO_GETS ((PROTO(bfd_signed_vma, (*), ( bfd_byte *))) swap_abort )
- #define NO_PUT ((PROTO(void, (*), (bfd_vma, bfd_byte *))) swap_abort )
-
- bfd_target aix386_core_vec =
- {
- "aix386-core",
- bfd_target_unknown_flavour,
- true, /* target byte order */
- true, /* target headers byte order */
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- 0, /* leading underscore */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- 3, /* minimum alignment power */
- 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},
-
- JUMP_TABLE(aix386),
- (PTR) 0
- };
-