osf-core.c revision 218822
1281SN/A/* BFD back-end for OSF/1 core files. 2281SN/A Copyright 1993, 1994, 1995, 1998, 1999, 2001, 2002, 2003, 2004, 2006, 3281SN/A 2007 Free Software Foundation, Inc. 4281SN/A 5281SN/AThis file is part of BFD, the Binary File Descriptor library. 6281SN/A 7281SN/AThis program is free software; you can redistribute it and/or modify 8281SN/Ait under the terms of the GNU General Public License as published by 9281SN/Athe Free Software Foundation; either version 2 of the License, or 10281SN/A(at your option) any later version. 11281SN/A 12281SN/AThis program is distributed in the hope that it will be useful, 13281SN/Abut WITHOUT ANY WARRANTY; without even the implied warranty of 14281SN/AMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15281SN/AGNU General Public License for more details. 16281SN/A 17281SN/AYou should have received a copy of the GNU General Public License 18281SN/Aalong with this program; if not, write to the Free Software 19281SN/AFoundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 20281SN/A 21281SN/A/* This file can only be compiled on systems which use OSF/1 style 22281SN/A core files. */ 23281SN/A 24281SN/A#include "sysdep.h" 25281SN/A#include "bfd.h" 26281SN/A#include "libbfd.h" 27281SN/A 28281SN/A#include <sys/user.h> 29281SN/A#ifdef OSF_CORE 30281SN/A#include <sys/core.h> 31281SN/A#endif 32281SN/A 33281SN/A/* forward declarations */ 34281SN/A 35281SN/Astatic asection *make_bfd_asection 36281SN/A PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr)); 37281SN/Astatic const bfd_target *osf_core_core_file_p 38281SN/A PARAMS ((bfd *)); 39281SN/Astatic char *osf_core_core_file_failing_command 40281SN/A PARAMS ((bfd *)); 41281SN/Astatic int osf_core_core_file_failing_signal 42281SN/A PARAMS ((bfd *)); 43281SN/A#define osf_core_core_file_matches_executable_p generic_core_file_matches_executable_p 44281SN/Astatic void swap_abort 45281SN/A PARAMS ((void)); 46281SN/A 47281SN/A/* These are stored in the bfd's tdata */ 48281SN/A 49281SN/Astruct osf_core_struct 50281SN/A{ 51281SN/A int sig; 52281SN/A char cmd[MAXCOMLEN + 1]; 53281SN/A}; 54281SN/A 55281SN/A#define core_hdr(bfd) ((bfd)->tdata.osf_core_data) 56281SN/A#define core_signal(bfd) (core_hdr(bfd)->sig) 57281SN/A#define core_command(bfd) (core_hdr(bfd)->cmd) 58281SN/A 59281SN/Astatic asection * 60281SN/Amake_bfd_asection (abfd, name, flags, size, vma, filepos) 61281SN/A bfd *abfd; 62281SN/A const char *name; 63281SN/A flagword flags; 64281SN/A bfd_size_type size; 65281SN/A bfd_vma vma; 66281SN/A file_ptr filepos; 67281SN/A{ 68281SN/A asection *asect; 69281SN/A 70281SN/A asect = bfd_make_section_anyway_with_flags (abfd, name, flags); 71281SN/A if (!asect) 72281SN/A return NULL; 73281SN/A 74281SN/A asect->size = size; 75281SN/A asect->vma = vma; 76281SN/A asect->filepos = filepos; 77281SN/A asect->alignment_power = 8; 78281SN/A 79281SN/A return asect; 80281SN/A} 81281SN/A 82281SN/Astatic const bfd_target * 83281SN/Aosf_core_core_file_p (abfd) 84281SN/A bfd *abfd; 85281SN/A{ 86281SN/A int val; 87281SN/A int i; 88281SN/A char *secname; 89281SN/A struct core_filehdr core_header; 90281SN/A bfd_size_type amt; 91281SN/A 92281SN/A amt = sizeof core_header; 93281SN/A val = bfd_bread ((PTR) &core_header, amt, abfd); 94281SN/A if (val != sizeof core_header) 95281SN/A return NULL; 96281SN/A 97281SN/A if (! CONST_STRNEQ (core_header.magic, "Core")) 98281SN/A return NULL; 99281SN/A 100281SN/A core_hdr (abfd) = (struct osf_core_struct *) 101281SN/A bfd_zalloc (abfd, (bfd_size_type) sizeof (struct osf_core_struct)); 102281SN/A if (!core_hdr (abfd)) 103281SN/A return NULL; 104281SN/A 105281SN/A strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1); 106281SN/A core_signal (abfd) = core_header.signo; 107281SN/A 108281SN/A for (i = 0; i < core_header.nscns; i++) 109281SN/A { 110281SN/A struct core_scnhdr core_scnhdr; 111281SN/A flagword flags; 112281SN/A 113281SN/A amt = sizeof core_scnhdr; 114281SN/A val = bfd_bread ((PTR) &core_scnhdr, amt, abfd); 115281SN/A if (val != sizeof core_scnhdr) 116281SN/A break; 117281SN/A 118281SN/A /* Skip empty sections. */ 119281SN/A if (core_scnhdr.size == 0 || core_scnhdr.scnptr == 0) 120281SN/A continue; 121281SN/A 122281SN/A switch (core_scnhdr.scntype) 123281SN/A { 124281SN/A case SCNRGN: 125281SN/A secname = ".data"; 126281SN/A flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; 127281SN/A break; 128281SN/A case SCNSTACK: 129281SN/A secname = ".stack"; 130281SN/A flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; 131281SN/A break; 132281SN/A case SCNREGS: 133281SN/A secname = ".reg"; 134281SN/A flags = SEC_HAS_CONTENTS; 135281SN/A break; 136281SN/A default: 137281SN/A (*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"), 138281SN/A core_scnhdr.scntype); 139281SN/A continue; 140281SN/A } 141281SN/A 142281SN/A if (!make_bfd_asection (abfd, secname, flags, 143281SN/A (bfd_size_type) core_scnhdr.size, 144281SN/A (bfd_vma) core_scnhdr.vaddr, 145281SN/A (file_ptr) core_scnhdr.scnptr)) 146281SN/A goto fail; 147281SN/A } 148281SN/A 149281SN/A /* OK, we believe you. You're a core file (sure, sure). */ 150281SN/A 151281SN/A return abfd->xvec; 152281SN/A 153281SN/A fail: 154281SN/A bfd_release (abfd, core_hdr (abfd)); 155281SN/A core_hdr (abfd) = NULL; 156281SN/A bfd_section_list_clear (abfd); 157281SN/A return NULL; 158281SN/A} 159281SN/A 160281SN/Astatic char * 161281SN/Aosf_core_core_file_failing_command (abfd) 162281SN/A bfd *abfd; 163281SN/A{ 164281SN/A return core_command (abfd); 165281SN/A} 166281SN/A 167281SN/Astatic int 168281SN/Aosf_core_core_file_failing_signal (abfd) 169281SN/A bfd *abfd; 170281SN/A{ 171281SN/A return core_signal (abfd); 172281SN/A} 173281SN/A 174281SN/A/* If somebody calls any byte-swapping routines, shoot them. */ 175281SN/Astatic void 176281SN/Aswap_abort() 177281SN/A{ 178281SN/A abort(); /* This way doesn't require any declaration for ANSI to fuck up */ 179281SN/A} 180281SN/A 181281SN/A#define NO_GET ((bfd_vma (*) (const void *)) swap_abort) 182281SN/A#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort) 183281SN/A#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort) 184281SN/A#define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort) 185281SN/A#define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort) 186281SN/A#define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort) 187281SN/A 188281SN/Aconst bfd_target osf_core_vec = 189281SN/A { 190281SN/A "osf-core", 191281SN/A bfd_target_unknown_flavour, 192281SN/A BFD_ENDIAN_LITTLE, /* target byte order */ 193281SN/A BFD_ENDIAN_LITTLE, /* target headers byte order */ 194281SN/A (HAS_RELOC | EXEC_P | /* object flags */ 195281SN/A HAS_LINENO | HAS_DEBUG | 196281SN/A HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), 197281SN/A (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ 198281SN/A 0, /* symbol prefix */ 199281SN/A ' ', /* ar_pad_char */ 200281SN/A 16, /* ar_max_namelen */ 201281SN/A NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */ 202281SN/A NO_GET, NO_GETS, NO_PUT, /* 32 bit data */ 203281SN/A NO_GET, NO_GETS, NO_PUT, /* 16 bit data */ 204281SN/A NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */ 205281SN/A NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */ 206281SN/A NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */ 207281SN/A 208281SN/A { /* bfd_check_format */ 209281SN/A _bfd_dummy_target, /* unknown format */ 210281SN/A _bfd_dummy_target, /* object file */ 211281SN/A _bfd_dummy_target, /* archive */ 212281SN/A osf_core_core_file_p /* a core file */ 213281SN/A }, 214281SN/A { /* bfd_set_format */ 215281SN/A bfd_false, bfd_false, 216281SN/A bfd_false, bfd_false 217281SN/A }, 218281SN/A { /* bfd_write_contents */ 219281SN/A bfd_false, bfd_false, 220281SN/A bfd_false, bfd_false 221281SN/A }, 222281SN/A 223281SN/A BFD_JUMP_TABLE_GENERIC (_bfd_generic), 224281SN/A BFD_JUMP_TABLE_COPY (_bfd_generic), 225281SN/A BFD_JUMP_TABLE_CORE (osf_core), 226281SN/A BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), 227281SN/A BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols), 228281SN/A BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), 229281SN/A BFD_JUMP_TABLE_WRITE (_bfd_generic), 230281SN/A BFD_JUMP_TABLE_LINK (_bfd_nolink), 231281SN/A BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 232281SN/A 233281SN/A NULL, 234281SN/A 235281SN/A (PTR) 0 /* backend_data */ 236281SN/A }; 237281SN/A