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[/] [or1k/] [branches/] [oc/] [gdb-5.0/] [bfd/] [aix386-core.c] - Rev 1781
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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, 89, 91, 92, 93, 94, 95, 96, 97, 1998 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 "coff/i386.h" #include "coff/internal.h" #include "libcoff.h" #include <signal.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 void swap_abort PARAMS ((void)); 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. */ static 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), NULL, (PTR) 0 };
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