| /* BFD back-end for Irix core files. |
| Copyright 1993, 1994, 1996, 1999, 2001, 2002 |
| Free Software Foundation, Inc. |
| Written by Stu Grossman, Cygnus Support. |
| Converted to back-end form by Ian Lance Taylor, Cygnus Support |
| |
| 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. */ |
| |
| /* This file can only be compiled on systems which use Irix style core |
| files (namely, Irix 4 and Irix 5, so far). */ |
| |
| #include "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| |
| #ifdef IRIX_CORE |
| |
| #include <core.out.h> |
| |
| struct sgi_core_struct |
| { |
| int sig; |
| char cmd[CORE_NAMESIZE]; |
| }; |
| |
| #define core_hdr(bfd) ((bfd)->tdata.sgi_core_data) |
| #define core_signal(bfd) (core_hdr(bfd)->sig) |
| #define core_command(bfd) (core_hdr(bfd)->cmd) |
| |
| static asection *make_bfd_asection |
| PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr)); |
| static const bfd_target *irix_core_core_file_p |
| PARAMS ((bfd *)); |
| static char *irix_core_core_file_failing_command |
| PARAMS ((bfd *)); |
| static int irix_core_core_file_failing_signal |
| PARAMS ((bfd *)); |
| static bfd_boolean irix_core_core_file_matches_executable_p |
| PARAMS ((bfd *, bfd *)); |
| static void swap_abort |
| PARAMS ((void)); |
| #ifdef CORE_MAGIC64 |
| static int do_sections64 |
| PARAMS ((bfd *, struct coreout *)); |
| #endif |
| static int do_sections |
| PARAMS ((bfd *, struct coreout *)); |
| |
| /* Helper function for irix_core_core_file_p: |
| 32-bit and 64-bit versions. */ |
| |
| #ifdef CORE_MAGIC64 |
| static int |
| do_sections64 (abfd, coreout) |
| bfd * abfd; |
| struct coreout * coreout; |
| { |
| struct vmap64 vmap; |
| char *secname; |
| int i, val; |
| |
| for (i = 0; i < coreout->c_nvmap; i++) |
| { |
| val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd); |
| if (val != sizeof vmap) |
| break; |
| |
| switch (vmap.v_type) |
| { |
| case VDATA: |
| secname = ".data"; |
| break; |
| case VSTACK: |
| secname = ".stack"; |
| break; |
| #ifdef VMAPFILE |
| case VMAPFILE: |
| secname = ".mapfile"; |
| break; |
| #endif |
| default: |
| continue; |
| } |
| |
| /* A file offset of zero means that the |
| section is not contained in the corefile. */ |
| if (vmap.v_offset == 0) |
| continue; |
| |
| if (!make_bfd_asection (abfd, secname, |
| SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, |
| vmap.v_len, vmap.v_vaddr, vmap.v_offset)) |
| /* Fail. */ |
| return 0; |
| } |
| |
| return 1; |
| } |
| #endif |
| |
| /* 32-bit version. */ |
| |
| static int |
| do_sections (abfd, coreout) |
| bfd * abfd; |
| struct coreout *coreout; |
| { |
| struct vmap vmap; |
| char *secname; |
| int i, val; |
| |
| for (i = 0; i < coreout->c_nvmap; i++) |
| { |
| val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd); |
| if (val != sizeof vmap) |
| break; |
| |
| switch (vmap.v_type) |
| { |
| case VDATA: |
| secname = ".data"; |
| break; |
| case VSTACK: |
| secname = ".stack"; |
| break; |
| #ifdef VMAPFILE |
| case VMAPFILE: |
| secname = ".mapfile"; |
| break; |
| #endif |
| default: |
| continue; |
| } |
| |
| /* A file offset of zero means that the |
| section is not contained in the corefile. */ |
| if (vmap.v_offset == 0) |
| continue; |
| |
| if (!make_bfd_asection (abfd, secname, |
| SEC_ALLOC | SEC_LOAD+SEC_HAS_CONTENTS, |
| vmap.v_len, vmap.v_vaddr, vmap.v_offset)) |
| /* Fail. */ |
| return 0; |
| } |
| return 1; |
| } |
| |
| static asection * |
| make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos) |
| bfd *abfd; |
| const char *name; |
| flagword flags; |
| bfd_size_type _raw_size; |
| bfd_vma vma; |
| file_ptr filepos; |
| { |
| asection *asect; |
| |
| asect = bfd_make_section_anyway (abfd, name); |
| if (!asect) |
| return NULL; |
| |
| asect->flags = flags; |
| asect->_raw_size = _raw_size; |
| asect->vma = vma; |
| asect->filepos = filepos; |
| asect->alignment_power = 4; |
| |
| return asect; |
| } |
| |
| static const bfd_target * |
| irix_core_core_file_p (abfd) |
| bfd *abfd; |
| { |
| int val; |
| struct coreout coreout; |
| struct idesc *idg, *idf, *ids; |
| bfd_size_type amt; |
| |
| val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd); |
| if (val != sizeof coreout) |
| { |
| if (bfd_get_error () != bfd_error_system_call) |
| bfd_set_error (bfd_error_wrong_format); |
| return 0; |
| } |
| |
| if (coreout.c_version != CORE_VERSION1) |
| return 0; |
| |
| /* Have we got a corefile? */ |
| switch (coreout.c_magic) |
| { |
| case CORE_MAGIC: break; |
| #ifdef CORE_MAGIC64 |
| case CORE_MAGIC64: break; |
| #endif |
| #ifdef CORE_MAGICN32 |
| case CORE_MAGICN32: break; |
| #endif |
| default: return 0; /* Un-identifiable or not corefile. */ |
| } |
| |
| amt = sizeof (struct sgi_core_struct); |
| core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt); |
| if (!core_hdr (abfd)) |
| return NULL; |
| |
| strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE); |
| core_signal (abfd) = coreout.c_sigcause; |
| |
| if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0) |
| goto fail; |
| |
| /* Process corefile sections. */ |
| #ifdef CORE_MAGIC64 |
| if (coreout.c_magic == (int) CORE_MAGIC64) |
| { |
| if (! do_sections64 (abfd, & coreout)) |
| goto fail; |
| } |
| else |
| #endif |
| if (! do_sections (abfd, & coreout)) |
| goto fail; |
| |
| /* Make sure that the regs are contiguous within the core file. */ |
| |
| idg = &coreout.c_idesc[I_GPREGS]; |
| idf = &coreout.c_idesc[I_FPREGS]; |
| ids = &coreout.c_idesc[I_SPECREGS]; |
| |
| if (idg->i_offset + idg->i_len != idf->i_offset |
| || idf->i_offset + idf->i_len != ids->i_offset) |
| goto fail; /* Can't deal with non-contig regs */ |
| |
| if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0) |
| goto fail; |
| |
| if (!make_bfd_asection (abfd, ".reg", |
| SEC_HAS_CONTENTS, |
| idg->i_len + idf->i_len + ids->i_len, |
| 0, |
| idg->i_offset)) |
| goto fail; |
| |
| /* OK, we believe you. You're a core file (sure, sure). */ |
| bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0); |
| |
| return abfd->xvec; |
| |
| fail: |
| bfd_release (abfd, core_hdr (abfd)); |
| core_hdr (abfd) = NULL; |
| bfd_section_list_clear (abfd); |
| return NULL; |
| } |
| |
| static char * |
| irix_core_core_file_failing_command (abfd) |
| bfd *abfd; |
| { |
| return core_command (abfd); |
| } |
| |
| static int |
| irix_core_core_file_failing_signal (abfd) |
| bfd *abfd; |
| { |
| return core_signal (abfd); |
| } |
| |
| static bfd_boolean |
| irix_core_core_file_matches_executable_p (core_bfd, exec_bfd) |
| bfd *core_bfd, *exec_bfd; |
| { |
| return TRUE; /* XXX - FIXME */ |
| } |
| |
| /* 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 ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort ) |
| #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort ) |
| #define NO_SIGNED_GET \ |
| ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort ) |
| |
| const bfd_target irix_core_vec = |
| { |
| "irix-core", |
| bfd_target_unknown_flavour, |
| BFD_ENDIAN_BIG, /* target byte order */ |
| BFD_ENDIAN_BIG, /* target headers byte order */ |
| (HAS_RELOC | EXEC_P | /* object flags */ |
| HAS_LINENO | HAS_DEBUG | |
| HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 0, /* symbol prefix */ |
| ' ', /* ar_pad_char */ |
| 16, /* ar_max_namelen */ |
| NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */ |
| NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */ |
| NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */ |
| NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */ |
| NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */ |
| NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */ |
| |
| { /* bfd_check_format */ |
| _bfd_dummy_target, /* unknown format */ |
| _bfd_dummy_target, /* object file */ |
| _bfd_dummy_target, /* archive */ |
| irix_core_core_file_p /* a core file */ |
| }, |
| { /* bfd_set_format */ |
| bfd_false, bfd_false, |
| bfd_false, bfd_false |
| }, |
| { /* bfd_write_contents */ |
| bfd_false, bfd_false, |
| bfd_false, bfd_false |
| }, |
| |
| BFD_JUMP_TABLE_GENERIC (_bfd_generic), |
| BFD_JUMP_TABLE_COPY (_bfd_generic), |
| BFD_JUMP_TABLE_CORE (irix_core), |
| 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 /* backend_data */ |
| }; |
| |
| #endif /* IRIX_CORE */ |