mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
07d6d2b834
Binutils is supposed to use tabs. In my git config I have whitespace = indent-with-non-tab,space-before-tab,trailing-space and I got annoyed enough seeing red in "git diff" output to fix the problems. * doc/header.sed: Trim trailing space when splitting lines. * aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-cris.c, * aout-ns32k.c, * aout-target.h, * aout-tic30.c, * aoutf1.h, * aoutx.h, * arc-got.h, * arc-plt.def, * arc-plt.h, * archive.c, * archive64.c, * archures.c, * armnetbsd.c, * bfd-in.h, * bfd.c, * bfdio.c, * binary.c, * bout.c, * cache.c, * cisco-core.c, * coff-alpha.c, * coff-apollo.c, * coff-arm.c, * coff-h8300.c, * coff-i386.c, * coff-i860.c, * coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mcore.c, * coff-mips.c, * coff-ppc.c, * coff-rs6000.c, * coff-sh.c, * coff-stgo32.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c, * coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c, * coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c, * coffswap.h, * compress.c, * corefile.c, * cpu-alpha.c, * cpu-arm.c, * cpu-avr.c, * cpu-bfin.c, * cpu-cr16.c, * cpu-cr16c.c, * cpu-crx.c, * cpu-d10v.c, * cpu-frv.c, * cpu-ft32.c, * cpu-i370.c, * cpu-i960.c, * cpu-ia64-opc.c, * cpu-ip2k.c, * cpu-lm32.c, * cpu-m32r.c, * cpu-mcore.c, * cpu-microblaze.c, * cpu-mips.c, * cpu-moxie.c, * cpu-mt.c, * cpu-nios2.c, * cpu-ns32k.c, * cpu-or1k.c, * cpu-powerpc.c, * cpu-pru.c, * cpu-sh.c, * cpu-spu.c, * cpu-v850.c, * cpu-v850_rh850.c, * cpu-xgate.c, * cpu-z80.c, * dwarf1.c, * dwarf2.c, * ecoff.c, * ecofflink.c, * ecoffswap.h, * elf-bfd.h, * elf-eh-frame.c, * elf-hppa.h, * elf-m10200.c, * elf-m10300.c, * elf-s390-common.c, * elf-strtab.c, * elf-vxworks.c, * elf.c, * elf32-am33lin.c, * elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-avr.h, * elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-i860.c, * elf32-i960.c, * elf32-ip2k.c, * elf32-lm32.c, * elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c, * elf32-m68hc1x.c, * elf32-m68hc1x.h, * elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c, * elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nds32.h, * elf32-nios2.c, * elf32-or1k.c, * elf32-pj.c, * elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score.h, * elf32-score7.c, * elf32-sh-symbian.c, * elf32-sh.c, * elf32-sh64.c, * elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilegx.c, * elf32-tilegx.h, * elf32-tilepro.c, * elf32-tilepro.h, * elf32-v850.c, * elf32-vax.c, * elf32-wasm32.c, * elf32-xc16x.c, * elf32-xgate.c, * elf32-xgate.h, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c, * elf64-tilegx.c, * elf64-tilegx.h, * elf64-x86-64.c, * elfcore.h, * elflink.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-aarch64.h, * elfxx-ia64.c, * elfxx-ia64.h, * elfxx-mips.c, * elfxx-riscv.c, * elfxx-sparc.c, * elfxx-tilegx.c, * elfxx-x86.c, * elfxx-x86.h, * freebsd.h, * hash.c, * host-aout.c, * hp300hpux.c, * hppabsd-core.c, * hpux-core.c, * i386aout.c, * i386linux.c, * i386lynx.c, * i386mach3.c, * i386msdos.c, * i386netbsd.c, * ieee.c, * ihex.c, * irix-core.c, * libaout.h, * libbfd-in.h, * libbfd.c, * libcoff-in.h, * libnlm.h, * libpei.h, * libxcoff.h, * linker.c, * lynx-core.c, * m68k4knetbsd.c, * m68klinux.c, * m68knetbsd.c, * m88kmach3.c, * mach-o-aarch64.c, * mach-o-arm.c, * mach-o-i386.c, * mach-o-target.c, * mach-o-x86-64.c, * mach-o.c, * mach-o.h, * merge.c, * mipsbsd.c, * mmo.c, * netbsd.h, * netbsd-core.c, * newsos3.c, * nlm-target.h, * nlm32-ppc.c, * nlm32-sparc.c, * nlmcode.h, * ns32k.h, * ns32knetbsd.c, * oasys.c, * opncls.c, * pc532-mach.c, * pdp11.c, * pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-mips.c, * pe-x86_64.c, * peXXigen.c, * pef.c, * pef.h, * pei-arm.c, * pei-i386.c, * pei-mcore.c, * pei-x86_64.c, * peicode.h, * plugin.c, * ppcboot.c, * ptrace-core.c, * reloc.c, * riscix.c, * rs6000-core.c, * section.c, * som.c, * som.h, * sparclinux.c, * sparcnetbsd.c, * srec.c, * stabs.c, * sunos.c, * syms.c, * targets.c, * tekhex.c, * trad-core.c, * vax1knetbsd.c, * vaxnetbsd.c, * verilog.c, * versados.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c, * wasm-module.c, * wasm-module.h, * xcofflink.c, * xsym.c, * xsym.h: Whitespace fixes. * bfd-in2.h, * libbfd.h, * libcoff.h: Regenerate.
318 lines
9.5 KiB
C
318 lines
9.5 KiB
C
/* BFD back end for traditional Unix core files (U-area and raw sections)
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Copyright (C) 1988-2017 Free Software Foundation, Inc.
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Written by John Gilmore of 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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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "libaout.h" /* BFD a.out internal data structures */
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#include <sys/param.h>
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#ifdef HAVE_DIRENT_H
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# include <dirent.h>
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#else
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# ifdef HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# ifdef HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# ifdef HAVE_NDIR_H
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# include <ndir.h>
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# endif
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#endif
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#include <signal.h>
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#include <sys/user.h> /* After a.out.h */
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#ifdef TRAD_HEADER
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#include TRAD_HEADER
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#endif
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#ifndef NBPG
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# define NBPG getpagesize()
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#endif
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struct trad_core_struct
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{
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asection *data_section;
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asection *stack_section;
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asection *reg_section;
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struct user u;
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};
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#define core_upage(bfd) (&((bfd)->tdata.trad_core_data->u))
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#define core_datasec(bfd) ((bfd)->tdata.trad_core_data->data_section)
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#define core_stacksec(bfd) ((bfd)->tdata.trad_core_data->stack_section)
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#define core_regsec(bfd) ((bfd)->tdata.trad_core_data->reg_section)
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/* forward declarations */
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#define trad_unix_core_file_matches_executable_p generic_core_file_matches_executable_p
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#define trad_unix_core_file_pid _bfd_nocore_core_file_pid
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/* Handle 4.2-style (and perhaps also sysV-style) core dump file. */
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static const bfd_target *
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trad_unix_core_file_p (bfd *abfd)
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{
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int val;
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struct user u;
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struct trad_core_struct *rawptr;
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bfd_size_type amt;
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flagword flags;
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#ifdef TRAD_CORE_USER_OFFSET
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/* If defined, this macro is the file position of the user struct. */
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if (bfd_seek (abfd, (file_ptr) TRAD_CORE_USER_OFFSET, SEEK_SET) != 0)
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return 0;
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#endif
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val = bfd_bread ((void *) &u, (bfd_size_type) sizeof u, abfd);
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if (val != sizeof u)
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{
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/* Too small to be a core file */
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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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/* Sanity check perhaps??? */
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if (u.u_dsize > 0x1000000) /* Remember, it's in pages... */
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{
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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 (u.u_ssize > 0x1000000)
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{
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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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/* Check that the size claimed is no greater than the file size. */
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{
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struct stat statbuf;
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if (bfd_stat (abfd, &statbuf) < 0)
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return 0;
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if ((ufile_ptr) NBPG * (UPAGES + u.u_dsize
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#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
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- u.u_tsize
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#endif
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+ u.u_ssize)
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> (ufile_ptr) statbuf.st_size)
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{
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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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#ifndef TRAD_CORE_ALLOW_ANY_EXTRA_SIZE
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if (((ufile_ptr) NBPG * (UPAGES + u.u_dsize + u.u_ssize)
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#ifdef TRAD_CORE_EXTRA_SIZE_ALLOWED
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/* Some systems write the file too big. */
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+ TRAD_CORE_EXTRA_SIZE_ALLOWED
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#endif
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)
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< (ufile_ptr) statbuf.st_size)
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{
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/* The file is too big. Maybe it's not a core file
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or we otherwise have bad values for u_dsize and u_ssize). */
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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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#endif
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}
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/* OK, we believe you. You're a core file (sure, sure). */
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/* Allocate both the upage and the struct core_data at once, so
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a single free() will free them both. */
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amt = sizeof (struct trad_core_struct);
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rawptr = (struct trad_core_struct *) bfd_zmalloc (amt);
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if (rawptr == NULL)
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return 0;
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abfd->tdata.trad_core_data = rawptr;
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rawptr->u = u; /*Copy the uarea into the tdata part of the bfd */
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/* Create the sections. */
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flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
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core_stacksec(abfd) = bfd_make_section_anyway_with_flags (abfd, ".stack",
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flags);
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if (core_stacksec (abfd) == NULL)
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goto fail;
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core_datasec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".data",
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flags);
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if (core_datasec (abfd) == NULL)
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goto fail;
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core_regsec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".reg",
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SEC_HAS_CONTENTS);
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if (core_regsec (abfd) == NULL)
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goto fail;
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core_datasec (abfd)->size = NBPG * u.u_dsize
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#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
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- NBPG * u.u_tsize
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#endif
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;
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core_stacksec (abfd)->size = NBPG * u.u_ssize;
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core_regsec (abfd)->size = NBPG * UPAGES; /* Larger than sizeof struct u */
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/* What a hack... we'd like to steal it from the exec file,
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since the upage does not seem to provide it. FIXME. */
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#ifdef HOST_DATA_START_ADDR
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core_datasec (abfd)->vma = HOST_DATA_START_ADDR;
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#else
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core_datasec (abfd)->vma = HOST_TEXT_START_ADDR + (NBPG * u.u_tsize);
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#endif
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#ifdef HOST_STACK_START_ADDR
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core_stacksec (abfd)->vma = HOST_STACK_START_ADDR;
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#else
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core_stacksec (abfd)->vma = HOST_STACK_END_ADDR - (NBPG * u.u_ssize);
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#endif
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/* This is tricky. As the "register section", we give them the entire
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upage and stack. u.u_ar0 points to where "register 0" is stored.
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There are two tricks with this, though. One is that the rest of the
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registers might be at positive or negative (or both) displacements
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from *u_ar0. The other is that u_ar0 is sometimes an absolute address
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in kernel memory, and on other systems it is an offset from the beginning
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of the `struct user'.
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As a practical matter, we don't know where the registers actually are,
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so we have to pass the whole area to GDB. We encode the value of u_ar0
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by setting the .regs section up so that its virtual memory address
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0 is at the place pointed to by u_ar0 (by setting the vma of the start
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of the section to -u_ar0). GDB uses this info to locate the regs,
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using minor trickery to get around the offset-or-absolute-addr problem. */
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core_regsec (abfd)->vma = - (bfd_vma) (unsigned long) u.u_ar0;
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core_datasec (abfd)->filepos = NBPG * UPAGES;
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core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * u.u_dsize
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#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
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- NBPG * u.u_tsize
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#endif
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;
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core_regsec (abfd)->filepos = 0; /* Register segment is the upage */
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/* Align to word at least */
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core_stacksec (abfd)->alignment_power = 2;
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core_datasec (abfd)->alignment_power = 2;
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core_regsec (abfd)->alignment_power = 2;
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return abfd->xvec;
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fail:
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bfd_release (abfd, abfd->tdata.any);
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abfd->tdata.any = 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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trad_unix_core_file_failing_command (bfd *abfd)
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{
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#ifndef NO_CORE_COMMAND
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char *com = abfd->tdata.trad_core_data->u.u_comm;
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if (*com)
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return com;
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else
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#endif
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return 0;
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}
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static int
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trad_unix_core_file_failing_signal (bfd *ignore_abfd ATTRIBUTE_UNUSED)
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{
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#ifdef TRAD_UNIX_CORE_FILE_FAILING_SIGNAL
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return TRAD_UNIX_CORE_FILE_FAILING_SIGNAL(ignore_abfd);
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#else
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return -1; /* FIXME, where is it? */
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#endif
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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 ((bfd_uint64_t (*) (const void *)) swap_abort)
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#define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
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#define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
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const bfd_target core_trad_vec =
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{
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"trad-core",
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bfd_target_unknown_flavour,
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BFD_ENDIAN_UNKNOWN, /* target byte order */
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BFD_ENDIAN_UNKNOWN, /* 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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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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trad_unix_core_file_p /* a core file */
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},
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{ /* bfd_set_format */
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bfd_false, bfd_false,
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bfd_false, bfd_false
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},
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{ /* bfd_write_contents */
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bfd_false, bfd_false,
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bfd_false, bfd_false
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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 (trad_unix),
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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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