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1e3b2da08e
Assorted targets do not check, as the ELF targets do, that the program name in a core file is NUL terminated. Fix some of them. I haven't attempted to fix all targets because editing host specific code can easily result in build bugs, which aren't discovered until someone build binutils for that host. (Of the files edited here, I can't easily compile hpux-core.c and osf-core.c on a linux system.) PR 32399 * hppabsd-core.c (hppabsd_core_core_file_p): Ensure core_command string is terminated. * hpux-core.c (hpux_core_core_file_p): Likewise. * irix-core.c (irix_core_core_file_p): Likewise. * lynx-core.c (lynx_core_file_p): Likewise. * osf-core.c (osf_core_core_file_p): Likewise. * mach-o.c (bfd_mach_o_core_file_failing_command): Likewise.
340 lines
8.4 KiB
C
340 lines
8.4 KiB
C
/* BFD back-end for Irix core files.
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Copyright (C) 1993-2024 Free Software Foundation, Inc.
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Written by Stu Grossman, Cygnus Support.
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Converted to back-end form by Ian Lance Taylor, Cygnus Support
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* This file can only be compiled on systems which use Irix style core
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files (namely, Irix 4 and Irix 5, so far). */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#ifdef IRIX_CORE
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#include <core.out.h>
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struct sgi_core_struct
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{
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int sig;
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char cmd[CORE_NAMESIZE];
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};
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#define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
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#define core_signal(bfd) (core_hdr(bfd)->sig)
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#define core_command(bfd) (core_hdr(bfd)->cmd)
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#define irix_core_core_file_matches_executable_p generic_core_file_matches_executable_p
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#define irix_core_core_file_pid _bfd_nocore_core_file_pid
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static asection *make_bfd_asection
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(bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr);
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/* Helper function for irix_core_core_file_p:
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32-bit and 64-bit versions. */
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#ifdef CORE_MAGIC64
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static int
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do_sections64 (bfd *abfd, struct coreout *coreout)
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{
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struct vmap64 vmap;
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char *secname;
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int i, val;
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for (i = 0; i < coreout->c_nvmap; i++)
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{
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val = bfd_read (&vmap, sizeof vmap, abfd);
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if (val != sizeof vmap)
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break;
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switch (vmap.v_type)
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{
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case VDATA:
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secname = ".data";
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break;
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case VSTACK:
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secname = ".stack";
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break;
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#ifdef VMAPFILE
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case VMAPFILE:
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secname = ".mapfile";
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break;
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#endif
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default:
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continue;
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}
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/* A file offset of zero means that the
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section is not contained in the corefile. */
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if (vmap.v_offset == 0)
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continue;
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if (!make_bfd_asection (abfd, secname,
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SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
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vmap.v_len, vmap.v_vaddr, vmap.v_offset))
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/* Fail. */
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return 0;
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}
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return 1;
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}
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#endif
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/* 32-bit version. */
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static int
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do_sections (bfd *abfd, struct coreout *coreout)
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{
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struct vmap vmap;
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char *secname;
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int i, val;
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for (i = 0; i < coreout->c_nvmap; i++)
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{
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val = bfd_read (&vmap, sizeof vmap, abfd);
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if (val != sizeof vmap)
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break;
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switch (vmap.v_type)
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{
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case VDATA:
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secname = ".data";
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break;
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case VSTACK:
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secname = ".stack";
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break;
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#ifdef VMAPFILE
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case VMAPFILE:
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secname = ".mapfile";
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break;
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#endif
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default:
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continue;
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}
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/* A file offset of zero means that the
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section is not contained in the corefile. */
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if (vmap.v_offset == 0)
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continue;
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if (!make_bfd_asection (abfd, secname,
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SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
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vmap.v_len, vmap.v_vaddr, vmap.v_offset))
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/* Fail. */
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return 0;
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}
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return 1;
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}
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static asection *
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make_bfd_asection (bfd *abfd,
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const char *name,
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flagword flags,
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bfd_size_type size,
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bfd_vma vma,
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file_ptr filepos)
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{
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asection *asect;
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asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
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if (!asect)
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return NULL;
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asect->size = size;
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asect->vma = vma;
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asect->filepos = filepos;
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asect->alignment_power = 4;
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return asect;
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}
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static bfd_cleanup
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irix_core_core_file_p (bfd *abfd)
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{
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int val;
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struct coreout coreout;
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struct idesc *idg, *idf, *ids;
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size_t amt;
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val = bfd_read (&coreout, sizeof coreout, abfd);
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if (val != sizeof coreout)
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{
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if (bfd_get_error () != bfd_error_system_call)
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bfd_set_error (bfd_error_wrong_format);
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return 0;
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}
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if (coreout.c_version != CORE_VERSION1)
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return 0;
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/* Have we got a corefile? */
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switch (coreout.c_magic)
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{
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case CORE_MAGIC: break;
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#ifdef CORE_MAGIC64
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case CORE_MAGIC64: break;
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#endif
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#ifdef CORE_MAGICN32
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case CORE_MAGICN32: break;
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#endif
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default: return 0; /* Un-identifiable or not corefile. */
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}
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amt = sizeof (struct sgi_core_struct);
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core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
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if (!core_hdr (abfd))
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return NULL;
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strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE - 1);
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core_command (abfd)[CORE_NAMESIZE - 1] = 0;
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core_signal (abfd) = coreout.c_sigcause;
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if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
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goto fail;
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/* Process corefile sections. */
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#ifdef CORE_MAGIC64
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if (coreout.c_magic == (int) CORE_MAGIC64)
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{
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if (! do_sections64 (abfd, & coreout))
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goto fail;
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}
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else
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#endif
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if (! do_sections (abfd, & coreout))
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goto fail;
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/* Make sure that the regs are contiguous within the core file. */
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idg = &coreout.c_idesc[I_GPREGS];
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idf = &coreout.c_idesc[I_FPREGS];
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ids = &coreout.c_idesc[I_SPECREGS];
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if (idg->i_offset + idg->i_len != idf->i_offset
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|| idf->i_offset + idf->i_len != ids->i_offset)
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goto fail; /* Can't deal with non-contig regs */
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if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
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goto fail;
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if (!make_bfd_asection (abfd, ".reg",
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SEC_HAS_CONTENTS,
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idg->i_len + idf->i_len + ids->i_len,
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0,
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idg->i_offset))
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goto fail;
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/* OK, we believe you. You're a core file (sure, sure). */
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bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
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return _bfd_no_cleanup;
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fail:
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bfd_release (abfd, core_hdr (abfd));
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core_hdr (abfd) = NULL;
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bfd_section_list_clear (abfd);
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return NULL;
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}
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static char *
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irix_core_core_file_failing_command (bfd *abfd)
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{
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return core_command (abfd);
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}
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static int
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irix_core_core_file_failing_signal (bfd *abfd)
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{
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return core_signal (abfd);
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}
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/* If somebody calls any byte-swapping routines, shoot them. */
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static void
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swap_abort(void)
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{
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abort(); /* This way doesn't require any declaration for ANSI to fuck up */
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}
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#define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
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#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
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#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
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#define NO_GET64 ((uint64_t (*) (const void *)) swap_abort)
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#define NO_PUT64 ((void (*) (uint64_t, void *)) swap_abort)
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#define NO_GETS64 ((int64_t (*) (const void *)) swap_abort)
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const bfd_target core_irix_vec =
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{
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"irix-core",
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bfd_target_unknown_flavour,
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BFD_ENDIAN_BIG, /* target byte order */
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BFD_ENDIAN_BIG, /* target headers byte order */
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(HAS_RELOC | EXEC_P | /* object flags */
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HAS_LINENO | HAS_DEBUG |
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HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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0, /* symbol prefix */
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' ', /* ar_pad_char */
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16, /* ar_max_namelen */
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0, /* match_priority */
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TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
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NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
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NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
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NO_GET, NO_GETS, NO_PUT, /* 16 bit data */
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NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */
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NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */
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NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */
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{ /* bfd_check_format */
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_bfd_dummy_target, /* unknown format */
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_bfd_dummy_target, /* object file */
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_bfd_dummy_target, /* archive */
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irix_core_core_file_p /* a core file */
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},
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{ /* bfd_set_format */
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error
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},
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{ /* bfd_write_contents */
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error,
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_bfd_bool_bfd_false_error
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},
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BFD_JUMP_TABLE_GENERIC (_bfd_generic),
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BFD_JUMP_TABLE_COPY (_bfd_generic),
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BFD_JUMP_TABLE_CORE (irix_core),
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BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
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BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
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BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
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BFD_JUMP_TABLE_WRITE (_bfd_generic),
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BFD_JUMP_TABLE_LINK (_bfd_nolink),
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BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
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NULL,
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NULL /* backend_data */
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};
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#endif /* IRIX_CORE */
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