mirror of
https://sourceware.org/git/binutils-gdb.git
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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.
239 lines
8.0 KiB
C
239 lines
8.0 KiB
C
/* BFD back-end for MS-DOS executables.
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Copyright (C) 1990-2017 Free Software Foundation, Inc.
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Written by Bryan Ford of the University of Utah.
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Contributed by the Center for Software Science at the
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University of Utah (pa-gdb-bugs@cs.utah.edu).
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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"
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#define EXE_MAGIC 0x5a4d
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#define EXE_LOAD_HIGH 0x0000
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#define EXE_LOAD_LOW 0xffff
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#define EXE_PAGE_SIZE 512
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static int
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msdos_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
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struct bfd_link_info *info ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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static bfd_boolean
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msdos_write_object_contents (bfd *abfd)
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{
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static char hdr[EXE_PAGE_SIZE];
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file_ptr outfile_size = sizeof(hdr);
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bfd_vma high_vma = 0;
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asection *sec;
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/* Find the total size of the program on disk and in memory. */
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for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next)
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{
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if (sec->size == 0)
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continue;
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if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
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{
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bfd_vma sec_vma = bfd_get_section_vma (abfd, sec) + sec->size;
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if (sec_vma > high_vma)
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high_vma = sec_vma;
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}
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if (bfd_get_section_flags (abfd, sec) & SEC_LOAD)
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{
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file_ptr sec_end = (sizeof (hdr)
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+ bfd_get_section_vma (abfd, sec)
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+ sec->size);
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if (sec_end > outfile_size)
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outfile_size = sec_end;
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}
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}
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/* Make sure the program isn't too big. */
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if (high_vma > (bfd_vma)0xffff)
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{
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bfd_set_error(bfd_error_file_too_big);
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return FALSE;
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}
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/* Constants. */
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H_PUT_16 (abfd, EXE_MAGIC, &hdr[0]);
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H_PUT_16 (abfd, EXE_PAGE_SIZE / 16, &hdr[8]);
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H_PUT_16 (abfd, EXE_LOAD_LOW, &hdr[12]);
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H_PUT_16 (abfd, 0x3e, &hdr[24]);
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H_PUT_16 (abfd, 0x0001, &hdr[28]); /* XXX??? */
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H_PUT_16 (abfd, 0x30fb, &hdr[30]); /* XXX??? */
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H_PUT_16 (abfd, 0x726a, &hdr[32]); /* XXX??? */
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/* Bytes in last page (0 = full page). */
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H_PUT_16 (abfd, outfile_size & (EXE_PAGE_SIZE - 1), &hdr[2]);
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/* Number of pages. */
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H_PUT_16 (abfd, (outfile_size + EXE_PAGE_SIZE - 1) / EXE_PAGE_SIZE, &hdr[4]);
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/* Set the initial stack pointer to the end of the bss.
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The program's crt0 code must relocate it to a real stack. */
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H_PUT_16 (abfd, high_vma, &hdr[16]);
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
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|| bfd_bwrite (hdr, (bfd_size_type) sizeof(hdr), abfd) != sizeof(hdr))
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return FALSE;
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return TRUE;
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}
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static bfd_boolean
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msdos_set_section_contents (bfd *abfd,
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sec_ptr section,
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const void *location,
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file_ptr offset,
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bfd_size_type count)
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{
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if (count == 0)
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return TRUE;
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section->filepos = EXE_PAGE_SIZE + bfd_get_section_vma (abfd, section);
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if (bfd_get_section_flags (abfd, section) & SEC_LOAD)
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{
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if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
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|| bfd_bwrite (location, count, abfd) != count)
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return FALSE;
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}
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return TRUE;
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}
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#define msdos_mkobject aout_32_mkobject
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#define msdos_make_empty_symbol aout_32_make_empty_symbol
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#define msdos_bfd_reloc_type_lookup aout_32_reloc_type_lookup
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#define msdos_bfd_reloc_name_lookup aout_32_reloc_name_lookup
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#define msdos_close_and_cleanup _bfd_generic_close_and_cleanup
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#define msdos_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
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#define msdos_new_section_hook _bfd_generic_new_section_hook
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#define msdos_get_section_contents _bfd_generic_get_section_contents
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#define msdos_get_section_contents_in_window \
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_bfd_generic_get_section_contents_in_window
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#define msdos_bfd_get_relocated_section_contents \
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bfd_generic_get_relocated_section_contents
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#define msdos_bfd_relax_section bfd_generic_relax_section
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#define msdos_bfd_gc_sections bfd_generic_gc_sections
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#define msdos_bfd_lookup_section_flags bfd_generic_lookup_section_flags
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#define msdos_bfd_merge_sections bfd_generic_merge_sections
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#define msdos_bfd_is_group_section bfd_generic_is_group_section
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#define msdos_bfd_discard_group bfd_generic_discard_group
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#define msdos_section_already_linked \
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_bfd_generic_section_already_linked
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#define msdos_bfd_define_common_symbol bfd_generic_define_common_symbol
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#define msdos_bfd_define_start_stop bfd_generic_define_start_stop
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#define msdos_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
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#define msdos_bfd_link_add_symbols _bfd_generic_link_add_symbols
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#define msdos_bfd_link_just_syms _bfd_generic_link_just_syms
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#define msdos_bfd_copy_link_hash_symbol_type \
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_bfd_generic_copy_link_hash_symbol_type
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#define msdos_bfd_final_link _bfd_generic_final_link
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#define msdos_bfd_link_split_section _bfd_generic_link_split_section
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#define msdos_set_arch_mach _bfd_generic_set_arch_mach
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#define msdos_bfd_link_check_relocs _bfd_generic_link_check_relocs
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#define msdos_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
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#define msdos_canonicalize_symtab _bfd_nosymbols_canonicalize_symtab
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#define msdos_print_symbol _bfd_nosymbols_print_symbol
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#define msdos_get_symbol_info _bfd_nosymbols_get_symbol_info
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#define msdos_get_symbol_version_string \
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_bfd_nosymbols_get_symbol_version_string
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#define msdos_find_nearest_line _bfd_nosymbols_find_nearest_line
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#define msdos_find_line _bfd_nosymbols_find_line
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#define msdos_find_inliner_info _bfd_nosymbols_find_inliner_info
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#define msdos_get_lineno _bfd_nosymbols_get_lineno
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#define msdos_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
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#define msdos_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
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#define msdos_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
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#define msdos_read_minisymbols _bfd_nosymbols_read_minisymbols
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#define msdos_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
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#define msdos_canonicalize_reloc _bfd_norelocs_canonicalize_reloc
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#define msdos_set_reloc _bfd_norelocs_set_reloc
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#define msdos_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound
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#define msdos_32_bfd_link_split_section _bfd_generic_link_split_section
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const bfd_target i386_msdos_vec =
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{
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"msdos", /* name */
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bfd_target_msdos_flavour,
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BFD_ENDIAN_LITTLE, /* target byte order */
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BFD_ENDIAN_LITTLE, /* target headers byte order */
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(EXEC_P), /* object flags */
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(SEC_CODE | SEC_DATA | SEC_HAS_CONTENTS
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| SEC_ALLOC | SEC_LOAD), /* section flags */
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0, /* leading underscore */
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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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bfd_getl64, bfd_getl_signed_64, bfd_putl64,
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bfd_getl32, bfd_getl_signed_32, bfd_putl32,
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bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
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bfd_getl64, bfd_getl_signed_64, bfd_putl64,
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bfd_getl32, bfd_getl_signed_32, bfd_putl32,
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bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
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{
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_bfd_dummy_target,
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_bfd_dummy_target, /* bfd_check_format */
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_bfd_dummy_target,
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_bfd_dummy_target,
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},
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{
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bfd_false,
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msdos_mkobject,
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_bfd_generic_mkarchive,
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bfd_false,
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},
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{ /* bfd_write_contents */
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bfd_false,
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msdos_write_object_contents,
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_bfd_write_archive_contents,
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bfd_false,
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},
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BFD_JUMP_TABLE_GENERIC (msdos),
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BFD_JUMP_TABLE_COPY (_bfd_generic),
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BFD_JUMP_TABLE_CORE (_bfd_nocore),
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BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
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BFD_JUMP_TABLE_SYMBOLS (msdos),
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BFD_JUMP_TABLE_RELOCS (msdos),
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BFD_JUMP_TABLE_WRITE (msdos),
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BFD_JUMP_TABLE_LINK (msdos),
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BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
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NULL,
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NULL
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};
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