diff options
Diffstat (limited to 'bfd/netbsd-core.c')
| -rw-r--r-- | bfd/netbsd-core.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/bfd/netbsd-core.c b/bfd/netbsd-core.c new file mode 100644 index 00000000000..21b184dce3b --- /dev/null +++ b/bfd/netbsd-core.c @@ -0,0 +1,251 @@ +/* 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), + + (PTR) 0 /* backend_data */ +}; |