diff options
Diffstat (limited to 'binutils-2.25/bfd/hppabsd-core.c')
| -rw-r--r-- | binutils-2.25/bfd/hppabsd-core.c | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/hppabsd-core.c b/binutils-2.25/bfd/hppabsd-core.c new file mode 100644 index 00000000..c9e0985a --- /dev/null +++ b/binutils-2.25/bfd/hppabsd-core.c @@ -0,0 +1,270 @@ +/* BFD back-end for HPPA BSD core files. + Copyright 1993, 1994, 1995, 1998, 1999, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2012 Free Software Foundation, Inc. + + 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 3 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., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. + + Written by the Center for Software Science at the University of Utah + and by Cygnus Support. + + The core file structure for the Utah 4.3BSD and OSF1 ports on the + PA is a mix between traditional cores and hpux cores -- just + different enough that supporting this format would tend to add + gross hacks to trad-core.c or hpux-core.c. So instead we keep any + gross hacks isolated to this file. */ + +/* This file can only be compiled on systems which use HPPA-BSD style + core files. + + I would not expect this to be of use to any other host/target, but + you never know. */ + +#include "sysdep.h" +#include "bfd.h" +#include "libbfd.h" + +#if defined (HOST_HPPABSD) + +#include "machine/vmparam.h" + +#include <sys/param.h> +#include <sys/dir.h> +#include <signal.h> +#include <machine/reg.h> +#include <sys/user.h> /* After a.out.h */ +#include <sys/file.h> + +#define hppabsd_core_core_file_matches_executable_p generic_core_file_matches_executable_p +#define hppabsd_core_core_file_pid _bfd_nocore_core_file_pid + +/* These are stored in the bfd's tdata. */ + +struct hppabsd_core_struct +{ + int sig; + char cmd[MAXCOMLEN + 1]; + asection *data_section; + asection *stack_section; + asection *reg_section; +}; + +#define core_hdr(bfd) ((bfd)->tdata.hppabsd_core_data) +#define core_signal(bfd) (core_hdr(bfd)->sig) +#define core_command(bfd) (core_hdr(bfd)->cmd) +#define core_datasec(bfd) (core_hdr(bfd)->data_section) +#define core_stacksec(bfd) (core_hdr(bfd)->stack_section) +#define core_regsec(bfd) (core_hdr(bfd)->reg_section) + +static asection * +make_bfd_asection (bfd *abfd, + const char *name, + flagword flags, + bfd_size_type size, + file_ptr offset, + unsigned int alignment_power) +{ + asection *asect; + + asect = bfd_make_section_with_flags (abfd, name, flags); + if (!asect) + return NULL; + + asect->size = size; + asect->filepos = offset; + asect->alignment_power = alignment_power; + + return asect; +} + +static const bfd_target * +hppabsd_core_core_file_p (bfd *abfd) +{ + int val; + struct user u; + struct hppabsd_core_struct *coredata; + int clicksz; + + /* Try to read in the u-area. We will need information from this + to know how to grok the rest of the core structures. */ + val = bfd_bread ((void *) &u, (bfd_size_type) sizeof u, abfd); + if (val != sizeof u) + { + if (bfd_get_error () != bfd_error_system_call) + bfd_set_error (bfd_error_wrong_format); + return NULL; + } + + /* Get the page size out of the u structure. This will be different + for PA 1.0 machines and PA 1.1 machines. Yuk! */ + clicksz = u.u_pcb.pcb_pgsz; + + /* clicksz must be a power of two >= 2k. */ + if (clicksz < 0x800 + || clicksz != (clicksz & -clicksz)) + { + bfd_set_error (bfd_error_wrong_format); + return NULL; + } + + /* Sanity checks. Make sure the size of the core file matches the + the size computed from information within the core itself. */ + { + struct stat statbuf; + + if (bfd_stat (abfd, &statbuf) < 0) + return NULL; + + if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size) + { + bfd_set_error (bfd_error_file_truncated); + return NULL; + } + if (clicksz * (UPAGES + u.u_dsize + u.u_ssize) < statbuf.st_size) + { + /* The file is too big. Maybe it's not a core file + or we otherwise have bad values for u_dsize and u_ssize). */ + bfd_set_error (bfd_error_wrong_format); + return NULL; + } + } + + /* OK, we believe you. You're a core file (sure, sure). */ + + coredata = (struct hppabsd_core_struct *) + bfd_zalloc (abfd, (bfd_size_type) sizeof (struct hppabsd_core_struct)); + if (!coredata) + return NULL; + + /* Make the core data and available via the tdata part of the BFD. */ + abfd->tdata.hppabsd_core_data = coredata; + + /* Create the sections. */ + core_stacksec (abfd) = make_bfd_asection (abfd, ".stack", + SEC_ALLOC + SEC_HAS_CONTENTS, + clicksz * u.u_ssize, + NBPG * (USIZE + KSTAKSIZE) + + clicksz * u.u_dsize, 2); + if (core_stacksec (abfd) == NULL) + goto fail; + core_stacksec (abfd)->vma = USRSTACK; + + core_datasec (abfd) = make_bfd_asection (abfd, ".data", + SEC_ALLOC + SEC_LOAD + + SEC_HAS_CONTENTS, + clicksz * u.u_dsize, + NBPG * (USIZE + KSTAKSIZE), 2); + if (core_datasec (abfd) == NULL) + goto fail; + core_datasec (abfd)->vma = UDATASEG; + + core_regsec (abfd) = make_bfd_asection (abfd, ".reg", + SEC_HAS_CONTENTS, + KSTAKSIZE * NBPG, + NBPG * USIZE, 2); + if (core_regsec (abfd) == NULL) + goto fail; + core_regsec (abfd)->vma = 0; + + strncpy (core_command (abfd), u.u_comm, MAXCOMLEN + 1); + core_signal (abfd) = u.u_code; + return abfd->xvec; + + fail: + bfd_release (abfd, abfd->tdata.any); + abfd->tdata.any = NULL; + bfd_section_list_clear (abfd); + return NULL; +} + +static char * +hppabsd_core_core_file_failing_command (bfd *abfd) +{ + return core_command (abfd); +} + +static int +hppabsd_core_core_file_failing_signal (bfd *abfd) +{ + return core_signal (abfd); +} + +/* If somebody calls any byte-swapping routines, shoot them. */ +static void +swap_abort (void) +{ + /* This way doesn't require any declaration for ANSI to fuck up. */ + abort (); +} + +#define NO_GET ((bfd_vma (*) (const void *)) swap_abort) +#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort) +#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort) +#define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort) +#define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort) +#define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort) + +const bfd_target hppabsd_core_vec = + { + "hppabsd-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_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */ + NO_GET, NO_GETS, NO_PUT, /* 32 bit data */ + NO_GET, NO_GETS, NO_PUT, /* 16 bit data */ + NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */ + NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */ + NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */ + + { /* bfd_check_format */ + _bfd_dummy_target, /* unknown format */ + _bfd_dummy_target, /* object file */ + _bfd_dummy_target, /* archive */ + hppabsd_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 (hppabsd_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, + + NULL /* backend_data */ + }; +#endif |