diff options
Diffstat (limited to 'binutils-2.24/bfd/elfcore.h')
-rw-r--r-- | binutils-2.24/bfd/elfcore.h | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/binutils-2.24/bfd/elfcore.h b/binutils-2.24/bfd/elfcore.h deleted file mode 100644 index 429c09c7..00000000 --- a/binutils-2.24/bfd/elfcore.h +++ /dev/null @@ -1,320 +0,0 @@ -/* ELF core file support for BFD. - Copyright 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2005, 2007, - 2008, 2010 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. */ - -char* -elf_core_file_failing_command (bfd *abfd) -{ - return elf_tdata (abfd)->core->command; -} - -int -elf_core_file_failing_signal (bfd *abfd) -{ - return elf_tdata (abfd)->core->signal; -} - -int -elf_core_file_pid (bfd *abfd) -{ - return elf_tdata (abfd)->core->pid; -} - -bfd_boolean -elf_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd) -{ - char* corename; - - /* xvecs must match if both are ELF files for the same target. */ - - if (core_bfd->xvec != exec_bfd->xvec) - { - bfd_set_error (bfd_error_system_call); - return FALSE; - } - - /* See if the name in the corefile matches the executable name. */ - corename = elf_tdata (core_bfd)->core->program; - if (corename != NULL) - { - const char* execname = strrchr (exec_bfd->filename, '/'); - - execname = execname ? execname + 1 : exec_bfd->filename; - - if (strcmp (execname, corename) != 0) - return FALSE; - } - - return TRUE; -} - -/* Core files are simply standard ELF formatted files that partition - the file using the execution view of the file (program header table) - rather than the linking view. In fact, there is no section header - table in a core file. - - The process status information (including the contents of the general - register set) and the floating point register set are stored in a - segment of type PT_NOTE. We handcraft a couple of extra bfd sections - that allow standard bfd access to the general registers (.reg) and the - floating point registers (.reg2). */ - -const bfd_target * -elf_core_file_p (bfd *abfd) -{ - Elf_External_Ehdr x_ehdr; /* Elf file header, external form. */ - Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ - Elf_Internal_Phdr *i_phdrp; /* Elf program header, internal form. */ - unsigned int phindex; - const struct elf_backend_data *ebd; - bfd_size_type amt; - - /* Read in the ELF header in external format. */ - if (bfd_bread (&x_ehdr, sizeof (x_ehdr), abfd) != sizeof (x_ehdr)) - { - if (bfd_get_error () != bfd_error_system_call) - goto wrong; - else - goto fail; - } - - /* Check the magic number. */ - if (! elf_file_p (&x_ehdr)) - goto wrong; - - /* FIXME: Check EI_VERSION here ! */ - - /* Check the address size ("class"). */ - if (x_ehdr.e_ident[EI_CLASS] != ELFCLASS) - goto wrong; - - /* Check the byteorder. */ - switch (x_ehdr.e_ident[EI_DATA]) - { - case ELFDATA2MSB: /* Big-endian. */ - if (! bfd_big_endian (abfd)) - goto wrong; - break; - case ELFDATA2LSB: /* Little-endian. */ - if (! bfd_little_endian (abfd)) - goto wrong; - break; - default: - goto wrong; - } - - /* Give abfd an elf_obj_tdata. */ - if (! (*abfd->xvec->_bfd_set_format[bfd_core]) (abfd)) - goto fail; - - /* Swap in the rest of the header, now that we have the byte order. */ - i_ehdrp = elf_elfheader (abfd); - elf_swap_ehdr_in (abfd, &x_ehdr, i_ehdrp); - -#if DEBUG & 1 - elf_debug_file (i_ehdrp); -#endif - - ebd = get_elf_backend_data (abfd); - - /* Check that the ELF e_machine field matches what this particular - BFD format expects. */ - - if (ebd->elf_machine_code != i_ehdrp->e_machine - && (ebd->elf_machine_alt1 == 0 - || i_ehdrp->e_machine != ebd->elf_machine_alt1) - && (ebd->elf_machine_alt2 == 0 - || i_ehdrp->e_machine != ebd->elf_machine_alt2)) - { - const bfd_target * const *target_ptr; - - if (ebd->elf_machine_code != EM_NONE) - goto wrong; - - /* This is the generic ELF target. Let it match any ELF target - for which we do not have a specific backend. */ - - for (target_ptr = bfd_target_vector; *target_ptr != NULL; target_ptr++) - { - const struct elf_backend_data *back; - - if ((*target_ptr)->flavour != bfd_target_elf_flavour) - continue; - back = xvec_get_elf_backend_data (*target_ptr); - if (back->s->arch_size != ARCH_SIZE) - continue; - if (back->elf_machine_code == i_ehdrp->e_machine - || (back->elf_machine_alt1 != 0 - && i_ehdrp->e_machine == back->elf_machine_alt1) - || (back->elf_machine_alt2 != 0 - && i_ehdrp->e_machine == back->elf_machine_alt2)) - { - /* target_ptr is an ELF backend which matches this - object file, so reject the generic ELF target. */ - goto wrong; - } - } - } - - /* If there is no program header, or the type is not a core file, then - we are hosed. */ - if (i_ehdrp->e_phoff == 0 || i_ehdrp->e_type != ET_CORE) - goto wrong; - - /* Does BFD's idea of the phdr size match the size - recorded in the file? */ - if (i_ehdrp->e_phentsize != sizeof (Elf_External_Phdr)) - goto wrong; - - /* If the program header count is PN_XNUM(0xffff), the actual - count is in the first section header. */ - if (i_ehdrp->e_shoff != 0 && i_ehdrp->e_phnum == PN_XNUM) - { - Elf_External_Shdr x_shdr; - Elf_Internal_Shdr i_shdr; - bfd_signed_vma where = i_ehdrp->e_shoff; - - if (where != (file_ptr) where) - goto wrong; - - /* Seek to the section header table in the file. */ - if (bfd_seek (abfd, (file_ptr) where, SEEK_SET) != 0) - goto fail; - - /* Read the first section header at index 0, and convert to internal - form. */ - if (bfd_bread (&x_shdr, sizeof (x_shdr), abfd) != sizeof (x_shdr)) - goto fail; - elf_swap_shdr_in (abfd, &x_shdr, &i_shdr); - - if (i_shdr.sh_info != 0) - { - i_ehdrp->e_phnum = i_shdr.sh_info; - if (i_ehdrp->e_phnum != i_shdr.sh_info) - goto wrong; - } - } - - /* Sanity check that we can read all of the program headers. - It ought to be good enough to just read the last one. */ - if (i_ehdrp->e_phnum > 1) - { - Elf_External_Phdr x_phdr; - Elf_Internal_Phdr i_phdr; - bfd_signed_vma where; - - /* Check that we don't have a totally silly number of - program headers. */ - if (i_ehdrp->e_phnum > (unsigned int) -1 / sizeof (x_phdr) - || i_ehdrp->e_phnum > (unsigned int) -1 / sizeof (i_phdr)) - goto wrong; - - where = i_ehdrp->e_phoff + (i_ehdrp->e_phnum - 1) * sizeof (x_phdr); - if (where != (file_ptr) where) - goto wrong; - if ((bfd_size_type) where <= i_ehdrp->e_phoff) - goto wrong; - - if (bfd_seek (abfd, (file_ptr) where, SEEK_SET) != 0) - goto fail; - if (bfd_bread (&x_phdr, sizeof (x_phdr), abfd) != sizeof (x_phdr)) - goto fail; - } - - /* Move to the start of the program headers. */ - if (bfd_seek (abfd, (file_ptr) i_ehdrp->e_phoff, SEEK_SET) != 0) - goto wrong; - - /* Allocate space for the program headers. */ - amt = sizeof (*i_phdrp) * i_ehdrp->e_phnum; - i_phdrp = (Elf_Internal_Phdr *) bfd_alloc (abfd, amt); - if (!i_phdrp) - goto fail; - - elf_tdata (abfd)->phdr = i_phdrp; - - /* Read and convert to internal form. */ - for (phindex = 0; phindex < i_ehdrp->e_phnum; ++phindex) - { - Elf_External_Phdr x_phdr; - - if (bfd_bread (&x_phdr, sizeof (x_phdr), abfd) != sizeof (x_phdr)) - goto fail; - - elf_swap_phdr_in (abfd, &x_phdr, i_phdrp + phindex); - } - - /* Set the machine architecture. Do this before processing the - program headers since we need to know the architecture type - when processing the notes of some systems' core files. */ - if (! bfd_default_set_arch_mach (abfd, ebd->arch, 0) - /* It's OK if this fails for the generic target. */ - && ebd->elf_machine_code != EM_NONE) - goto fail; - - /* Let the backend double check the format and override global - information. We do this before processing the program headers - to allow the correct machine (as opposed to just the default - machine) to be set, making it possible for grok_prstatus and - grok_psinfo to rely on the mach setting. */ - if (ebd->elf_backend_object_p != NULL - && ! ebd->elf_backend_object_p (abfd)) - goto wrong; - - /* Process each program header. */ - for (phindex = 0; phindex < i_ehdrp->e_phnum; ++phindex) - if (! bfd_section_from_phdr (abfd, i_phdrp + phindex, (int) phindex)) - goto fail; - - /* Check for core truncation. */ - { - bfd_size_type high = 0; - struct stat statbuf; - for (phindex = 0; phindex < i_ehdrp->e_phnum; ++phindex) - { - Elf_Internal_Phdr *p = i_phdrp + phindex; - if (p->p_filesz) - { - bfd_size_type current = p->p_offset + p->p_filesz; - if (high < current) - high = current; - } - } - if (bfd_stat (abfd, &statbuf) == 0) - { - if ((bfd_size_type) statbuf.st_size < high) - { - (*_bfd_error_handler) - (_("Warning: %B is truncated: expected core file " - "size >= %lu, found: %lu."), - abfd, (unsigned long) high, (unsigned long) statbuf.st_size); - } - } - } - - /* Save the entry point from the ELF header. */ - bfd_get_start_address (abfd) = i_ehdrp->e_entry; - return abfd->xvec; - -wrong: - bfd_set_error (bfd_error_wrong_format); -fail: - return NULL; -} |