diff options
Diffstat (limited to 'bfd/sco5-core.c')
| -rw-r--r-- | bfd/sco5-core.c | 431 |
1 files changed, 0 insertions, 431 deletions
diff --git a/bfd/sco5-core.c b/bfd/sco5-core.c deleted file mode 100644 index 46c97d25889..00000000000 --- a/bfd/sco5-core.c +++ /dev/null @@ -1,431 +0,0 @@ -/* BFD back end for SCO5 core files (U-area and raw sections) - Copyright 1998 Free Software Foundation, Inc. - Written by Jouke Numan <jnuman@hiscom.nl> - -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 <stdio.h> -#include <sys/types.h> -#include <sys/param.h> -#include <sys/dir.h> -#include <signal.h> - -#include <sys/user.h> /* After a.out.h */ -#include <sys/paccess.h> -#include <sys/region.h> - -struct sco5_core_struct -{ - struct user u; -}; - -/* forward declarations */ - -static asection * -make_bfd_asection PARAMS ((bfd *, const char *, flagword, bfd_size_type, - bfd_vma, file_ptr)); -static asymbol *sco5_core_make_empty_symbol PARAMS ((bfd *)); -static struct user *read_uarea PARAMS ((bfd *, int)); -const bfd_target *sco5_core_file_p PARAMS ((bfd *abfd)); -char *sco5_core_file_failing_command PARAMS ((bfd *abfd)); -int sco5_core_file_failing_signal PARAMS ((bfd *abfd)); -boolean sco5_core_file_matches_executable_p PARAMS ((bfd *core_bfd, - bfd *exec_bfd)); -static void swap_abort PARAMS ((void)); - -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 = 2; - - return asect; -} - -static asymbol * -sco5_core_make_empty_symbol (abfd) - bfd *abfd; -{ - asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol)); - if (new) - new->the_bfd = abfd; - return new; -} - -static struct user * -read_uarea(abfd, filepos) - bfd *abfd; - int filepos; - -{ - struct sco5_core_struct *rawptr; - - rawptr = ((struct sco5_core_struct *) - bfd_zmalloc (sizeof (struct sco5_core_struct))); - if (rawptr == NULL) - return NULL; - - abfd->tdata.sco5_core_data = rawptr; - - if ((bfd_seek (abfd, filepos, SEEK_SET) != 0) - || (bfd_read ((void *)&rawptr->u, 1, sizeof rawptr->u, abfd) - != sizeof rawptr->u)) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* Sanity check perhaps??? */ - if (rawptr->u.u_dsize > 0x1000000) /* Remember, it's in pages... */ - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - if (rawptr->u.u_ssize > 0x1000000) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - return &rawptr->u; -} - -/* ARGSUSED */ -const bfd_target * -sco5_core_file_p (abfd) - bfd *abfd; -{ - int coffset_siz, val, nsecs, cheadoffs; - int coresize; - struct user *u; - struct coreoffsets coffsets; - struct coresecthead chead; - char *secname; - flagword flags; - - /* Read coreoffsets region at end of core (see core(FP)) */ - - { - FILE *stream = bfd_cache_lookup (abfd); - struct stat statbuf; - if (stream == NULL) - return NULL; - if (fstat (fileno (stream), &statbuf) < 0) - { - bfd_set_error (bfd_error_system_call); - return NULL; - } - coresize = statbuf.st_size; - } - /* Last long in core is sizeof struct coreoffsets, read it */ - if ((bfd_seek (abfd, coresize-sizeof coffset_siz, SEEK_SET) != 0) - || (bfd_read ((void *)&coffset_siz, 1, sizeof coffset_siz, abfd) - != sizeof coffset_siz) ) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* Use it to seek start of coreoffsets region, read it and determine - validity */ - if ((bfd_seek (abfd, coresize-coffset_siz, SEEK_SET) != 0) - || (bfd_read ((void *)&coffsets, 1, sizeof coffsets, abfd) - != sizeof coffsets) - || ((coffsets.u_info != 1) && (coffsets.u_info != C_VERSION))) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - - if (coffsets.u_info == 1) - { - /* Old version, no section heads, read info from user struct */ - - u = read_uarea(abfd, coffsets.u_user); - if (! u) - return NULL; - - if (!make_bfd_asection (abfd, ".reg", SEC_HAS_CONTENTS, - (bfd_size_type) coffsets.u_usize, - 0 - (bfd_vma) u->u_ar0, - (file_ptr) coffsets.u_user)) - return NULL; - - if (!make_bfd_asection (abfd, ".data", - SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS, - ((bfd_size_type) u->u_exdata.ux_dsize - + u->u_exdata.ux_bsize), - (bfd_vma) u->u_exdata.ux_datorg, - (file_ptr) coffsets.u_data)) - return NULL; - - if (!make_bfd_asection (abfd, ".stack", - SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS, - (bfd_size_type) u->u_ssize * NBPC, - (bfd_vma) u->u_sub, - (file_ptr) coffsets.u_stack)) - return NULL; - - return abfd->xvec; /* Done for version 1 */ - } - - /* Immediately before coreoffsets region is a long with offset in core - to first coresecthead (CORES_OFFSETS), the long before this is the - number of section heads in the list. Read both longs and read the - coresecthead and check its validity */ - - if ((bfd_seek (abfd, - coresize - coffset_siz - 2 * sizeof coffset_siz, - SEEK_SET) != 0) - || (bfd_read ((void *)&nsecs, 1, sizeof nsecs, abfd) != sizeof nsecs) - || (bfd_read ((void *)&cheadoffs, 1, sizeof cheadoffs, abfd) - != sizeof cheadoffs) - || (bfd_seek (abfd, cheadoffs, SEEK_SET) != 0) - || (bfd_read ((void *)&chead, 1, sizeof chead, abfd) != sizeof chead) - || (chead.cs_stype != CORES_OFFSETS) - || (chead.cs_x.csx_magic != COREMAGIC_NUMBER)) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* OK, we believe you. You're a core file (sure, sure). */ - - /* Now loop over all regions and map them */ - nsecs--; /* We've seen CORES_OFFSETS already */ - for (; nsecs; nsecs--) - { - if ((bfd_seek (abfd, chead.cs_hseek, SEEK_SET) != 0) - || bfd_read ((void *)&chead, 1, sizeof chead, abfd) != sizeof chead) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - switch (chead.cs_stype) - { - case CORES_MAGIC: /* Core header, check magic */ - if (chead.cs_x.csx_magic != COREMAGIC_NUMBER) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - secname = NULL; - nsecs++; /* MAGIC not in section cnt!*/ - break; - case CORES_UAREA: /* U-area, read in tdata */ - u = read_uarea(abfd, chead.cs_sseek); - if (! u) - return NULL; - - /* This is tricky. As the "register section", we give them - the entire upage and stack. u.u_ar0 points to where - "register 0" is stored. There are two tricks with this, - though. One is that the rest of the registers might be - at positive or negative (or both) displacements from - *u_ar0. The other is that u_ar0 is sometimes an absolute - address in kernel memory, and on other systems it is an - offset from the beginning of the `struct user'. - - As a practical matter, we don't know where the registers - actually are, so we have to pass the whole area to GDB. - We encode the value of u_ar0 by setting the .regs section - up so that its virtual memory address 0 is at the place - pointed to by u_ar0 (by setting the vma of the start of - the section to -u_ar0). GDB uses this info to locate the - regs, using minor trickery to get around the - offset-or-absolute-addr problem. */ - - chead.cs_vaddr = 0 - (bfd_vma) u->u_ar0; - - - secname = ".reg"; - flags = SEC_HAS_CONTENTS; - - break; - case CORES_PREGION: /* A program region, map it */ - switch (chead.cs_x.csx_preg.csxp_rtyp) - { - case PT_DATA: - secname = ".data"; /* Data region. */ - break; - case PT_STACK: - secname = ".stack"; /* Stack region. */ - break; - case PT_SHMEM: - secname = ".shmem"; /* Shared memory */ - break; - case PT_LIBDAT: - secname = ".libdat"; /* Shared library data */ - break; - case PT_V86: - secname = ".virt86"; /* Virtual 8086 mode */ - break; - case PT_SHFIL: - secname = ".mmfile"; /* Memory mapped file */ - break; - case PT_XDATA0: - secname = ".Xdat0"; /* XENIX data region, virtual 0 */ - break; - default: - secname = ""; - } - flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; - break; - case CORES_PROC: /* struct proc */ - case CORES_ITIMER: /* interval timers */ - case CORES_SCOUTSNAME: /* struct scoutsname */ - secname = NULL; /* Ignore these */ - break; - default: - (*_bfd_error_handler) ("Unhandled SCO core file section type %d\n", - chead.cs_stype); - continue; - } - - if (secname - && !make_bfd_asection (abfd, secname, flags, - (bfd_size_type) chead.cs_vsize, - (bfd_vma) chead.cs_vaddr, - (file_ptr) chead.cs_sseek)) - return NULL; - - } - - return abfd->xvec; - -} - -char * -sco5_core_file_failing_command (abfd) - bfd *abfd; -{ - char *com = abfd->tdata.sco5_core_data->u.u_comm; - if (*com) - return com; - else - return NULL; -} - -/* ARGSUSED */ -int -sco5_core_file_failing_signal (ignore_abfd) - bfd *ignore_abfd; -{ - return ((ignore_abfd->tdata.sco5_core_data->u.u_sysabort != 0) - ? ignore_abfd->tdata.sco5_core_data->u.u_sysabort - : -1); -} - -/* ARGSUSED */ -boolean -sco5_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 */ -} - -#define sco5_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound -#define sco5_core_get_symtab _bfd_nosymbols_get_symtab -#define sco5_core_print_symbol _bfd_nosymbols_print_symbol -#define sco5_core_get_symbol_info _bfd_nosymbols_get_symbol_info -#define sco5_core_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name -#define sco5_core_get_lineno _bfd_nosymbols_get_lineno -#define sco5_core_find_nearest_line _bfd_nosymbols_find_nearest_line -#define sco5_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol -#define sco5_core_read_minisymbols _bfd_nosymbols_read_minisymbols -#define sco5_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol - -/* 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 sco5_core_vec = - { - "sco5-core", - bfd_target_unknown_flavour, - BFD_ENDIAN_LITTLE, /* target byte order */ - BFD_ENDIAN_LITTLE, /* 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 */ - sco5_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 (sco5), - BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), - BFD_JUMP_TABLE_SYMBOLS (sco5_core), - 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 */ -}; |