| /* BFD back end for NetBSD style core files |
| Copyright 1988, 89, 91, 92, 93, 96, 1998 Free Software Foundation, Inc. |
| Written by Paul Kranenburg, EUR |
| |
| 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 "libaout.h" /* BFD a.out internal data structures */ |
| |
| #include <sys/param.h> |
| #include <sys/dir.h> |
| #include <signal.h> |
| #include <sys/core.h> |
| |
| /* |
| * FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof(struct trapframe)) |
| */ |
| |
| struct netbsd_core_struct { |
| struct core core; |
| } *rawptr; |
| |
| /* forward declarations */ |
| |
| static const bfd_target * netbsd_core_file_p PARAMS ((bfd *abfd)); |
| static char * netbsd_core_file_failing_command PARAMS ((bfd *abfd)); |
| static int netbsd_core_file_failing_signal PARAMS ((bfd *abfd)); |
| static boolean netbsd_core_file_matches_executable_p |
| PARAMS ((bfd *core_bfd, bfd *exec_bfd)); |
| static void swap_abort PARAMS ((void)); |
| |
| /* Handle NetBSD-style core dump file. */ |
| |
| /* ARGSUSED */ |
| static const bfd_target * |
| netbsd_core_file_p (abfd) |
| bfd *abfd; |
| |
| { |
| int i, val, offset; |
| asection *asect, *asect2; |
| struct core core; |
| struct coreseg coreseg; |
| |
| val = bfd_read ((void *)&core, 1, sizeof core, abfd); |
| if (val != sizeof core) { |
| /* Too small to be a core file */ |
| bfd_set_error(bfd_error_wrong_format); |
| return 0; |
| } |
| |
| if (CORE_GETMAGIC(core) != COREMAGIC) { |
| bfd_set_error(bfd_error_wrong_format); |
| return 0; |
| } |
| |
| rawptr = (struct netbsd_core_struct *) |
| bfd_zalloc (abfd, sizeof (struct netbsd_core_struct)); |
| if (rawptr == NULL) { |
| bfd_set_error(bfd_error_no_memory); |
| return 0; |
| } |
| |
| rawptr->core = core; |
| abfd->tdata.netbsd_core_data = rawptr; |
| |
| offset = core.c_hdrsize; |
| for (i = 0; i < core.c_nseg; i++) { |
| |
| if (bfd_seek (abfd, offset, SEEK_SET) != 0) |
| goto punt; |
| |
| val = bfd_read ((void *)&coreseg, 1, sizeof coreseg, abfd); |
| if (val != sizeof coreseg) { |
| bfd_set_error(bfd_error_file_truncated); |
| goto punt; |
| } |
| if (CORE_GETMAGIC(coreseg) != CORESEGMAGIC) { |
| bfd_set_error(bfd_error_wrong_format); |
| goto punt; |
| } |
| |
| offset += core.c_seghdrsize; |
| |
| asect = (asection *) bfd_zalloc (abfd, sizeof(asection)); |
| if (asect == NULL) { |
| bfd_set_error(bfd_error_no_memory); |
| goto punt; |
| } |
| |
| asect->_raw_size = coreseg.c_size; |
| asect->vma = coreseg.c_addr; |
| asect->filepos = offset; |
| asect->alignment_power = 2; |
| asect->next = abfd->sections; |
| abfd->sections = asect; |
| abfd->section_count++; |
| offset += coreseg.c_size; |
| |
| switch (CORE_GETFLAG(coreseg)) { |
| case CORE_CPU: |
| asect->name = ".reg"; |
| asect->flags = SEC_ALLOC + SEC_HAS_CONTENTS; |
| #ifdef CORE_FPU_OFFSET |
| /* Hackish... */ |
| asect->_raw_size = CORE_FPU_OFFSET; |
| asect2 = (asection *)bfd_zalloc (abfd, |
| sizeof (asection)); |
| if (asect2 == NULL) { |
| bfd_set_error(bfd_error_no_memory); |
| goto punt; |
| } |
| asect2->_raw_size = coreseg.c_size - CORE_FPU_OFFSET; |
| asect2->vma = 0; |
| asect2->filepos = asect->filepos + CORE_FPU_OFFSET; |
| asect2->alignment_power = 2; |
| asect2->next = abfd->sections; |
| asect2->name = ".reg2"; |
| asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS; |
| abfd->sections = asect2; |
| abfd->section_count++; |
| #endif |
| |
| break; |
| case CORE_DATA: |
| asect->name = ".data"; |
| asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS; |
| break; |
| case CORE_STACK: |
| asect->name = ".stack"; |
| asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS; |
| break; |
| } |
| } |
| |
| /* OK, we believe you. You're a core file (sure, sure). */ |
| return abfd->xvec; |
| |
| punt: { |
| asection *anext; |
| for (asect = abfd->sections; asect; asect = anext) { |
| anext = asect->next; |
| free((void *)asect); |
| } |
| } |
| free ((void *)rawptr); |
| abfd->tdata.netbsd_core_data = NULL; |
| abfd->sections = NULL; |
| abfd->section_count = 0; |
| return 0; |
| } |
| |
| static char* |
| netbsd_core_file_failing_command (abfd) |
| bfd *abfd; |
| { |
| /*return core_command (abfd);*/ |
| return abfd->tdata.netbsd_core_data->core.c_name; |
| } |
| |
| /* ARGSUSED */ |
| static int |
| netbsd_core_file_failing_signal (abfd) |
| bfd *abfd; |
| { |
| /*return core_signal (abfd);*/ |
| return abfd->tdata.netbsd_core_data->core.c_signo; |
| } |
| |
| /* ARGSUSED */ |
| static boolean |
| netbsd_core_file_matches_executable_p (core_bfd, exec_bfd) |
| bfd *core_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 ((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 netbsd_core_vec = |
| { |
| "netbsd-core", |
| bfd_target_unknown_flavour, |
| BFD_ENDIAN_UNKNOWN, /* target byte order */ |
| BFD_ENDIAN_UNKNOWN, /* 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 */ |
| netbsd_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 (netbsd), |
| 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 */ |
| }; |