X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fptrace-core.c;h=ae8d747c2be80634e0499c57988d9c9d82876895;hb=aa1f7fb133a5a4f95af8286f58b689d6ae131488;hp=e0b24733809f81c40e7a724f03593be22853cd17;hpb=6812b6077e4a09eab08458428f09c28ec58fc514;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/ptrace-core.c b/bfd/ptrace-core.c index e0b2473380..ae8d747c2b 100644 --- a/bfd/ptrace-core.c +++ b/bfd/ptrace-core.c @@ -1,82 +1,71 @@ /* BFD backend for core files which use the ptrace_user structure - Copyright 1993 Free Software Foundation, Inc. + Copyright (C) 1993-2020 Free Software Foundation, Inc. The structure of this file is based on trad-core.c written by John Gilmore of Cygnus Support. Modified to work with the ptrace_user structure by Kevin A. Buettner. (Longterm it may be better to merge this file with trad-core.c) -This file is part of BFD, the Binary File Descriptor library. + 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 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. + 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., 675 Mass Ave, Cambridge, MA 02139, USA. - - To use this file on a particular host, configure the host with these - parameters in the config/h-HOST file: - - HDEFINES=-DPTRACE_CORE - HDEPFILES=ptrace-core.o - -*/ + 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. */ #ifdef PTRACE_CORE -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "libbfd.h" -#include -#include #include #include #include -#include -#include #include - struct trad_core_struct - { - asection *data_section; - asection *stack_section; - asection *reg_section; - struct ptrace_user u; - } *rawptr; - -#define core_upage(bfd) (&((bfd)->tdata.trad_core_data->u)) -#define core_datasec(bfd) ((bfd)->tdata.trad_core_data->data_section) +{ + asection *data_section; + asection *stack_section; + asection *reg_section; + struct ptrace_user u; +}; + +#define core_upage(bfd) (&((bfd)->tdata.trad_core_data->u)) +#define core_datasec(bfd) ((bfd)->tdata.trad_core_data->data_section) #define core_stacksec(bfd) ((bfd)->tdata.trad_core_data->stack_section) -#define core_regsec(bfd) ((bfd)->tdata.trad_core_data->reg_section) +#define core_regsec(bfd) ((bfd)->tdata.trad_core_data->reg_section) /* forward declarations */ -bfd_target * ptrace_unix_core_file_p PARAMS ((bfd *abfd)); -char * ptrace_unix_core_file_failing_command PARAMS ((bfd *abfd)); -int ptrace_unix_core_file_failing_signal PARAMS ((bfd *abfd)); -boolean ptrace_unix_core_file_matches_executable_p - PARAMS ((bfd *core_bfd, bfd *exec_bfd)); - -/* ARGSUSED */ -bfd_target * -ptrace_unix_core_file_p (abfd) - bfd *abfd; +const bfd_target *ptrace_unix_core_file_p (bfd *abfd); +char * ptrace_unix_core_file_failing_command (bfd *abfd); +int ptrace_unix_core_file_failing_signal (bfd *abfd); +#define ptrace_unix_core_file_matches_executable_p generic_core_file_matches_executable_p +#define ptrace_unix_core_file_pid _bfd_nocore_core_file_pid +static void swap_abort (void); +const bfd_target * +ptrace_unix_core_file_p (bfd *abfd) { int val; struct ptrace_user u; + struct trad_core_struct *rawptr; + bfd_size_type amt; + flagword flags; - val = bfd_read ((void *)&u, 1, sizeof u, abfd); - if (val != sizeof u || u.pt_magic != _BCS_PTRACE_MAGIC + val = bfd_bread ((void *)&u, (bfd_size_type) sizeof u, abfd); + if (val != sizeof u || u.pt_magic != _BCS_PTRACE_MAGIC || u.pt_rev != _BCS_PTRACE_REV) { /* Too small to be a core file */ @@ -88,60 +77,43 @@ ptrace_unix_core_file_p (abfd) /* Allocate both the upage and the struct core_data at once, so a single free() will free them both. */ - rawptr = (struct trad_core_struct *) - bfd_zalloc (abfd, sizeof (struct trad_core_struct)); + amt = sizeof (struct trad_core_struct); + rawptr = (struct trad_core_struct *) bfd_zalloc (abfd, amt); - if (rawptr == NULL) { - bfd_set_error (bfd_error_no_memory); + if (rawptr == NULL) return 0; - } - + abfd->tdata.trad_core_data = rawptr; rawptr->u = u; /*Copy the uarea into the tdata part of the bfd */ - /* Create the sections. This is raunchy, but bfd_close wants to free - them separately. */ - - core_stacksec(abfd) = (asection *) bfd_zmalloc (sizeof (asection)); - if (core_stacksec (abfd) == NULL) { - loser: - bfd_set_error (bfd_error_no_memory); - free ((void *)rawptr); - return 0; - } - core_datasec (abfd) = (asection *) zalloc (sizeof (asection)); - if (core_datasec (abfd) == NULL) { - loser1: - free ((void *)core_stacksec (abfd)); - goto loser; - } - core_regsec (abfd) = (asection *) zalloc (sizeof (asection)); - if (core_regsec (abfd) == NULL) { - free ((void *)core_datasec (abfd)); - goto loser1; - } - - core_stacksec (abfd)->name = ".stack"; - core_datasec (abfd)->name = ".data"; - core_regsec (abfd)->name = ".reg"; + /* Create the sections. */ + + flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; + core_stacksec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".stack", + flags); + if (core_stacksec (abfd) == NULL) + goto fail; + core_datasec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".data", + flags); + if (core_datasec (abfd) == NULL) + goto fail; + core_regsec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".reg", + SEC_HAS_CONTENTS); + if (core_regsec (abfd) == NULL) + goto fail; /* FIXME: Need to worry about shared memory, library data, and library text. I don't think that any of these things are supported on the - system on which I am developing this for though. */ - + system on which I am developing this for though. */ - core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; - core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; - core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS; - - core_datasec (abfd)->_raw_size = u.pt_dsize; - core_stacksec (abfd)->_raw_size = u.pt_ssize; - core_regsec (abfd)->_raw_size = sizeof(u); + core_datasec (abfd)->size = u.pt_dsize; + core_stacksec (abfd)->size = u.pt_ssize; + core_regsec (abfd)->size = sizeof (u); core_datasec (abfd)->vma = u.pt_o_data_start; core_stacksec (abfd)->vma = USRSTACK - u.pt_ssize; - core_regsec (abfd)->vma = 0 - sizeof(u); /* see trad-core.c */ + core_regsec (abfd)->vma = 0 - sizeof (u); /* see trad-core.c */ core_datasec (abfd)->filepos = (int) u.pt_dataptr; core_stacksec (abfd)->filepos = (int) (u.pt_dataptr + u.pt_dsize); @@ -152,100 +124,94 @@ ptrace_unix_core_file_p (abfd) core_datasec (abfd)->alignment_power = 2; core_regsec (abfd)->alignment_power = 2; - abfd->sections = core_stacksec (abfd); - core_stacksec (abfd)->next = core_datasec (abfd); - core_datasec (abfd)->next = core_regsec (abfd); - abfd->section_count = 3; - return abfd->xvec; + + fail: + bfd_release (abfd, abfd->tdata.any); + abfd->tdata.any = NULL; + bfd_section_list_clear (abfd); + return NULL; } char * -ptrace_unix_core_file_failing_command (abfd) - bfd *abfd; +ptrace_unix_core_file_failing_command (bfd *abfd) { char *com = abfd->tdata.trad_core_data->u.pt_comm; + if (*com) return com; else return 0; } -/* ARGSUSED */ int -ptrace_unix_core_file_failing_signal (abfd) - bfd *abfd; +ptrace_unix_core_file_failing_signal (bfd *abfd) { return abfd->tdata.trad_core_data->u.pt_sigframe.sig_num; } - -/* ARGSUSED */ -boolean -ptrace_unix_core_file_matches_executable_p (core_bfd, exec_bfd) - bfd *core_bfd, *exec_bfd; -{ - /* FIXME: Use pt_timdat field of the ptrace_user structure to match - the date of the executable */ - return true; -} /* If somebody calls any byte-swapping routines, shoot them. */ -void -swap_abort() +static void +swap_abort (void) { - abort(); /* This way doesn't require any declaration for ANSI to fuck up */ + 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 ) -bfd_target ptrace_core_vec = +#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 core_ptrace_vec = { "trad-core", bfd_target_unknown_flavour, - true, /* target byte order */ - true, /* target headers byte order */ + 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 */ + 0, /* symbol prefix */ ' ', /* ar_pad_char */ 16, /* ar_max_namelen */ - 3, /* minimum alignment power */ - 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 */ + 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 */ - ptrace_unix_core_file_p /* a core file */ + _bfd_dummy_target, /* unknown format */ + _bfd_dummy_target, /* object file */ + _bfd_dummy_target, /* archive */ + ptrace_unix_core_file_p /* a core file */ }, { /* bfd_set_format */ - bfd_false, bfd_false, - bfd_false, bfd_false + _bfd_bool_bfd_false_error, bfd_false, + _bfd_bool_bfd_false_error, bfd_false }, { /* bfd_write_contents */ - bfd_false, bfd_false, - bfd_false, bfd_false + _bfd_bool_bfd_false_error, bfd_false, + _bfd_bool_bfd_false_error, bfd_false }, - - BFD_JUMP_TABLE_GENERIC (_bfd_generic), - BFD_JUMP_TABLE_COPY (_bfd_generic), - BFD_JUMP_TABLE_CORE (ptrace_unix), - 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), - - (PTR) 0 /* backend_data */ -}; + + BFD_JUMP_TABLE_GENERIC (_bfd_generic), + BFD_JUMP_TABLE_COPY (_bfd_generic), + BFD_JUMP_TABLE_CORE (ptrace_unix), + 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 /* PTRACE_CORE */