mirror of
https://sourceware.org/git/binutils-gdb.git
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0e1862bb40
The "shared" field in bfd_link_info is set for both DSO and and PIE. There are separate fields for executable and relocatable outputs. This patch adds an "output_type" field: enum output_type { type_unknown = 0, type_executable, type_dll, type_relocatable }; and a "pic" field to bfd_link_info to replace shared, executable and relocatable fields so that we can use the "output_type" field to check for output type and the "pic" field check if output is PIC. Macros, bfd_link_executable, bfd_link_dll, bfd_link_relocatable, bfd_link_pic and bfd_link_pie, are provided to check for output features. bfd/ * bfd/aoutx.h: Replace shared, executable, relocatable and pie fields with bfd_link_executable, bfd_link_dll, bfd_link_relocatable, bfd_link_pic and bfd_link_pie. * bfd/bout.c: Likewise. * bfd/coff-alpha.c: Likewise. * bfd/coff-arm.c: Likewise. * bfd/coff-i386.c: Likewise. * bfd/coff-i960.c: Likewise. * bfd/coff-m68k.c: Likewise. * bfd/coff-mcore.c: Likewise. * bfd/coff-mips.c: Likewise. * bfd/coff-ppc.c: Likewise. * bfd/coff-rs6000.c: Likewise. * bfd/coff-sh.c: Likewise. * bfd/coff-tic80.c: Likewise. * bfd/coff-x86_64.c: Likewise. * bfd/coff64-rs6000.c: Likewise. * bfd/coffgen.c: Likewise. * bfd/cofflink.c: Likewise. * bfd/ecoff.c: Likewise. * bfd/ecofflink.c: Likewise. * bfd/elf-bfd.h: Likewise. * bfd/elf-eh-frame.c: Likewise. * bfd/elf-ifunc.c: Likewise. * bfd/elf-m10200.c: Likewise. * bfd/elf-m10300.c: Likewise. * bfd/elf-s390-common.c: Likewise. * bfd/elf-vxworks.c: Likewise. * bfd/elf.c: Likewise. * bfd/elf32-arm.c: Likewise. * bfd/elf32-avr.c: Likewise. * bfd/elf32-bfin.c: Likewise. * bfd/elf32-cr16.c: Likewise. * bfd/elf32-cr16c.c: Likewise. * bfd/elf32-cris.c: Likewise. * bfd/elf32-crx.c: Likewise. * bfd/elf32-d10v.c: Likewise. * bfd/elf32-dlx.c: Likewise. * bfd/elf32-epiphany.c: Likewise. * bfd/elf32-fr30.c: Likewise. * bfd/elf32-frv.c: Likewise. * bfd/elf32-ft32.c: Likewise. * bfd/elf32-h8300.c: Likewise. * bfd/elf32-hppa.c: Likewise. * bfd/elf32-i370.c: Likewise. * bfd/elf32-i386.c: Likewise. * bfd/elf32-i860.c: Likewise. * bfd/elf32-ip2k.c: Likewise. * bfd/elf32-iq2000.c: Likewise. * bfd/elf32-lm32.c: Likewise. * bfd/elf32-m32c.c: Likewise. * bfd/elf32-m32r.c: Likewise. * bfd/elf32-m68hc11.c: Likewise. * bfd/elf32-m68hc1x.c: Likewise. * bfd/elf32-m68k.c: Likewise. * bfd/elf32-mcore.c: Likewise. * bfd/elf32-mep.c: Likewise. * bfd/elf32-metag.c: Likewise. * bfd/elf32-microblaze.c: Likewise. * bfd/elf32-moxie.c: Likewise. * bfd/elf32-msp430.c: Likewise. * bfd/elf32-mt.c: Likewise. * bfd/elf32-nds32.c: Likewise. * bfd/elf32-nios2.c: Likewise. * bfd/elf32-or1k.c: Likewise. * bfd/elf32-ppc.c: Likewise. * bfd/elf32-rl78.c: Likewise. * bfd/elf32-rx.c: Likewise. * bfd/elf32-s390.c: Likewise. * bfd/elf32-score.c: Likewise. * bfd/elf32-score7.c: Likewise. * bfd/elf32-sh-symbian.c: Likewise. * bfd/elf32-sh.c: Likewise. * bfd/elf32-sh64.c: Likewise. * bfd/elf32-spu.c: Likewise. * bfd/elf32-tic6x.c: Likewise. * bfd/elf32-tilepro.c: Likewise. * bfd/elf32-v850.c: Likewise. * bfd/elf32-vax.c: Likewise. * bfd/elf32-visium.c: Likewise. * bfd/elf32-xc16x.c: Likewise. * bfd/elf32-xstormy16.c: Likewise. * bfd/elf32-xtensa.c: Likewise. * bfd/elf64-alpha.c: Likewise. * bfd/elf64-hppa.c: Likewise. * bfd/elf64-ia64-vms.c: Likewise. * bfd/elf64-mmix.c: Likewise. * bfd/elf64-ppc.c: Likewise. * bfd/elf64-s390.c: Likewise. * bfd/elf64-sh64.c: Likewise. * bfd/elf64-x86-64.c: Likewise. * bfd/elflink.c: Likewise. * bfd/elfnn-aarch64.c: Likewise. * bfd/elfnn-ia64.c: Likewise. * bfd/elfxx-mips.c: Likewise. * bfd/elfxx-sparc.c: Likewise. * bfd/elfxx-tilegx.c: Likewise. * bfd/i386linux.c: Likewise. * bfd/linker.c: Likewise. * bfd/m68klinux.c: Likewise. * bfd/pdp11.c: Likewise. * bfd/pe-mips.c: Likewise. * bfd/peXXigen.c: Likewise. * bfd/reloc.c: Likewise. * bfd/reloc16.c: Likewise. * bfd/sparclinux.c: Likewise. * bfd/sunos.c: Likewise. * bfd/vms-alpha.c: Likewise. * bfd/xcofflink.c: Likewise. include/ * include/bfdlink.h (output_type): New enum. (bfd_link_executable): New macro. (bfd_link_dll): Likewise. (bfd_link_relocatable): Likewise. (bfd_link_pic): Likewise. (bfd_link_pie): Likewise. (bfd_link_info): Remove shared, executable, pie and relocatable. Add output_type and pic. ld/ * ld/ldctor.c: Replace shared, executable, relocatable and pie fields with bfd_link_executable, bfd_link_dll, bfd_link_relocatable, bfd_link_pic and bfd_link_pie. * ld/ldemul.c: Likewise. * ld/ldfile.c: Likewise. * ld/ldlang.c: Likewise. * ld/ldmain.c: Likewise. * ld/ldwrite.c: Likewise. * ld/lexsup.c: Likewise. * ld/pe-dll.c: Likewise. * ld/plugin.c: Likewise. * ld/emultempl/aarch64elf.em: Likewise. * ld/emultempl/aix.em: Likewise. * ld/emultempl/alphaelf.em: Likewise. * ld/emultempl/armcoff.em: Likewise. * ld/emultempl/armelf.em: Likewise. * ld/emultempl/avrelf.em: Likewise. * ld/emultempl/beos.em: Likewise. * ld/emultempl/cr16elf.em: Likewise. * ld/emultempl/elf-generic.em: Likewise. * ld/emultempl/elf32.em: Likewise. * ld/emultempl/genelf.em: Likewise. * ld/emultempl/generic.em: Likewise. * ld/emultempl/gld960.em: Likewise. * ld/emultempl/gld960c.em: Likewise. * ld/emultempl/hppaelf.em: Likewise. * ld/emultempl/irix.em: Likewise. * ld/emultempl/linux.em: Likewise. * ld/emultempl/lnk960.em: Likewise. * ld/emultempl/m68hc1xelf.em: Likewise. * ld/emultempl/m68kcoff.em: Likewise. * ld/emultempl/m68kelf.em: Likewise. * ld/emultempl/metagelf.em: Likewise. * ld/emultempl/mipself.em: Likewise. * ld/emultempl/mmo.em: Likewise. * ld/emultempl/msp430.em: Likewise. * ld/emultempl/nds32elf.em: Likewise. * ld/emultempl/needrelax.em: Likewise. * ld/emultempl/nios2elf.em: Likewise. * ld/emultempl/pe.em: Likewise. * ld/emultempl/pep.em: Likewise. * ld/emultempl/ppc32elf.em: Likewise. * ld/emultempl/ppc64elf.em: Likewise. * ld/emultempl/sh64elf.em: Likewise. * ld/emultempl/solaris2.em: Likewise. * ld/emultempl/spuelf.em: Likewise. * ld/emultempl/sunos.em: Likewise. * ld/emultempl/tic6xdsbt.em: Likewise. * ld/emultempl/ticoff.em: Likewise. * ld/emultempl/v850elf.em: Likewise. * ld/emultempl/vms.em: Likewise. * ld/emultempl/vxworks.em: Likewise.
246 lines
7.5 KiB
Plaintext
246 lines
7.5 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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fragment <<EOF
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/* This file is is generated by a shell script. DO NOT EDIT! */
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/* Handle embedded relocs for m68k.
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Copyright (C) 2000-2015 Free Software Foundation, Inc.
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Written by Michael Sokolov <msokolov@ivan.Harhan.ORG>, based on generic.em
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by Steve Chamberlain <steve@cygnus.com>, embedded relocs code based on
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mipsecoff.em by Ian Lance Taylor <ian@cygnus.com> (now removed).
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This file is part of the GNU Binutils.
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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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#define TARGET_IS_${EMULATION_NAME}
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdlink.h"
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#include "ld.h"
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#include "ldmain.h"
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#include "ldexp.h"
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#include "ldlang.h"
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#include "ldfile.h"
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#include "ldemul.h"
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#include "ldmisc.h"
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static void check_sections (bfd *, asection *, void *);
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static void
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gld${EMULATION_NAME}_before_parse (void)
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{
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#ifndef TARGET_ /* I.e., if not generic. */
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ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
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#endif /* not TARGET_ */
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}
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/* This function is run after all the input files have been opened.
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We create a .emreloc section for each input file with a non zero
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.data section. The BFD backend will fill in these sections with
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magic numbers which can be used to relocate the data section at run
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time. */
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static void
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gld${EMULATION_NAME}_after_open (void)
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{
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bfd *abfd;
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after_open_default ();
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if (! command_line.embedded_relocs
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|| bfd_link_relocatable (&link_info))
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return;
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for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
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{
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asection *datasec;
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/* As first-order business, make sure that each input BFD is COFF. It
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better be, as we are directly calling a COFF backend function. */
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if (bfd_get_flavour (abfd) != bfd_target_coff_flavour)
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einfo ("%F%B: all input objects must be COFF for --embedded-relocs\n");
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datasec = bfd_get_section_by_name (abfd, ".data");
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/* Note that we assume that the reloc_count field has already
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been set up. We could call bfd_get_reloc_upper_bound, but
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that returns the size of a memory buffer rather than a reloc
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count. We do not want to call bfd_canonicalize_reloc,
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because although it would always work it would force us to
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read in the relocs into BFD canonical form, which would waste
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a significant amount of time and memory. */
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if (datasec != NULL && datasec->reloc_count > 0)
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{
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asection *relsec;
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relsec = bfd_make_section_with_flags (abfd, ".emreloc",
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(SEC_ALLOC
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| SEC_LOAD
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| SEC_HAS_CONTENTS
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| SEC_IN_MEMORY));
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if (relsec == NULL
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|| ! bfd_set_section_alignment (abfd, relsec, 2)
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|| ! bfd_set_section_size (abfd, relsec,
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datasec->reloc_count * 12))
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einfo ("%F%B: can not create .emreloc section: %E\n");
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}
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/* Double check that all other data sections are empty, as is
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required for embedded PIC code. */
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bfd_map_over_sections (abfd, check_sections, datasec);
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}
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}
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/* Check that of the data sections, only the .data section has
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relocs. This is called via bfd_map_over_sections. */
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static void
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check_sections (bfd *abfd, asection *sec, void *datasec)
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{
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if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
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&& sec != datasec
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&& sec->reloc_count != 0)
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einfo ("%B%X: section %s has relocs; can not use --embedded-relocs\n",
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abfd, bfd_get_section_name (abfd, sec));
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}
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/* This function is called after the section sizes and offsets have
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been set. If we are generating embedded relocs, it calls a special
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BFD backend routine to do the work. */
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static void
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gld${EMULATION_NAME}_after_allocation (void)
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{
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bfd *abfd;
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if (! command_line.embedded_relocs
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|| bfd_link_relocatable (&link_info))
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return;
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for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
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{
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asection *datasec, *relsec;
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char *errmsg;
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datasec = bfd_get_section_by_name (abfd, ".data");
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if (datasec == NULL || datasec->reloc_count == 0)
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continue;
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relsec = bfd_get_section_by_name (abfd, ".emreloc");
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ASSERT (relsec != NULL);
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if (! bfd_m68k_coff_create_embedded_relocs (abfd, &link_info,
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datasec, relsec,
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&errmsg))
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{
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if (errmsg == NULL)
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einfo ("%B%X: can not create runtime reloc information: %E\n",
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abfd);
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else
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einfo ("%X%B: can not create runtime reloc information: %s\n",
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abfd, errmsg);
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}
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}
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}
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static char *
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gld${EMULATION_NAME}_get_script (int *isfile)
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EOF
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if test x"$COMPILE_IN" = xyes
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then
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# Scripts compiled in.
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# sed commands to quote an ld script as a C string.
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sc="-f stringify.sed"
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fragment <<EOF
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{
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*isfile = 0;
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if (bfd_link_relocatable (&link_info) && config.build_constructors)
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return
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EOF
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sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
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echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
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echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
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echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
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echo ' ; else return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
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echo '; }' >> e${EMULATION_NAME}.c
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else
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# Scripts read from the filesystem.
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fragment <<EOF
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{
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*isfile = 1;
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if (bfd_link_relocatable (&link_info) && config.build_constructors)
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return "ldscripts/${EMULATION_NAME}.xu";
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else if (bfd_link_relocatable (&link_info))
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return "ldscripts/${EMULATION_NAME}.xr";
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else if (!config.text_read_only)
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return "ldscripts/${EMULATION_NAME}.xbn";
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else if (!config.magic_demand_paged)
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return "ldscripts/${EMULATION_NAME}.xn";
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else
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return "ldscripts/${EMULATION_NAME}.x";
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}
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EOF
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fi
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fragment <<EOF
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struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
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{
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gld${EMULATION_NAME}_before_parse,
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syslib_default,
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hll_default,
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after_parse_default,
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gld${EMULATION_NAME}_after_open,
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gld${EMULATION_NAME}_after_allocation,
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set_output_arch_default,
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ldemul_default_target,
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before_allocation_default,
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gld${EMULATION_NAME}_get_script,
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"${EMULATION_NAME}",
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"${OUTPUT_FORMAT}",
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finish_default,
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NULL, /* create output section statements */
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NULL, /* open dynamic archive */
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NULL, /* place orphan */
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NULL, /* set symbols */
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NULL, /* parse args */
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NULL, /* add_options */
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NULL, /* handle_option */
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NULL, /* unrecognized file */
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NULL, /* list options */
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NULL, /* recognized file */
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NULL, /* find_potential_libraries */
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NULL, /* new_vers_pattern */
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NULL /* extra_map_file_text */
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};
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EOF
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