mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-23 10:03:47 +08:00
f4e363cae2
LLD has dropped the option -Ttext-segment for specifying image base addresses, instead forcing the use of the --image-base option for both ELF and PE targets. As it stands, GNU LD and LLVM LLD are incompatible, having two different options for the same functionality. This patch enables the use of --image-base on ELF targets, advancing consistency and compatibility. See: https://reviews.llvm.org/D70468 https://maskray.me/blog/2020-11-15-explain-gnu-linker-options#address-related https://sourceware.org/bugzilla/show_bug.cgi?id=25207 Moreover, a new test has been added to ensure -z separate-code behaviour when used with -Ttext-segment stays the same. When this combination is used, -Ttext-segment sets the address of the first segment (R), not the text segment (RX), and like with -z noseparate-code, no segments lesser than the specified address are created. If this behaviour was to change, the first (R) segment of the ELF file would begin in a lesser address than the specified text (RX) segment, breaking traditional use of this option for specifying image base address.
753 lines
22 KiB
Plaintext
753 lines
22 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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if [ -z "$MACHINE" ]; then
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OUTPUT_ARCH=${ARCH}
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else
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OUTPUT_ARCH=${ARCH}:${MACHINE}
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fi
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fragment <<EOF
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/* This file is part of GLD, the Gnu Linker.
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Copyright (C) 1995-2024 Free Software Foundation, Inc.
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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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||
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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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/* For WINDOWS_NT */
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/* The original file generated returned different default scripts depending
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on whether certain switches were set, but these switches pertain to the
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Linux system and that particular version of coff. In the NT case, we
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only determine if the subsystem is console or windows in order to select
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the correct entry point by default. */
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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 "ctf-api.h"
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#include "getopt.h"
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#include "libiberty.h"
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#include "filenames.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 <ldgram.h>
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#include "ldlex.h"
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#include "ldmisc.h"
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#include "ldctor.h"
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#include "coff/internal.h"
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#include "../bfd/libcoff.h"
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#define TARGET_IS_${EMULATION_NAME}
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static struct internal_extra_pe_aouthdr pe;
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static int dll;
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extern const char *output_filename;
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static void
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gld${EMULATION_NAME}_before_parse (void)
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{
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ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
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output_filename = "a.exe";
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}
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/* PE format extra command line options. */
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static void
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gld${EMULATION_NAME}_add_options
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(int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
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struct option **longopts, int nrl ATTRIBUTE_UNUSED,
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struct option **really_longopts ATTRIBUTE_UNUSED)
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{
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static const struct option xtra_long[] = {
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/* PE options */
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{"base-file", required_argument, NULL, OPTION_BASE_FILE},
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{"dll", no_argument, NULL, OPTION_DLL},
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{"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
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{"heap", required_argument, NULL, OPTION_HEAP},
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{"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
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{"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
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{"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
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{"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
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{"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
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{"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
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{"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
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{"stack", required_argument, NULL, OPTION_STACK},
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{"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
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{NULL, no_argument, NULL, 0}
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};
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*longopts = (struct option *)
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xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
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memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
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}
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/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
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parameters which may be input from the command line */
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typedef struct {
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void *ptr;
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int size;
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int value;
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char *symbol;
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int inited;
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} definfo;
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#define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
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static definfo init[] =
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{
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/* imagebase must be first */
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#define IMAGEBASEOFF 0
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D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE),
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#define DLLOFF 1
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{&dll, sizeof(dll), 0, "__dll__", 0},
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D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
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D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
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D(MajorOperatingSystemVersion,"__major_os_version__", 4),
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D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
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D(MajorImageVersion,"__major_image_version__", 1),
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D(MinorImageVersion,"__minor_image_version__", 0),
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D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
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D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
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D(Subsystem,"__subsystem__", 3),
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D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
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D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
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D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
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D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
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D(LoaderFlags,"__loader_flags__", 0x0),
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{ NULL, 0, 0, NULL, 0 }
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};
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static void
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set_pe_name (char *name, long val)
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{
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int i;
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/* Find the name and set it. */
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for (i = 0; init[i].ptr; i++)
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{
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if (strcmp (name, init[i].symbol) == 0)
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{
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init[i].value = val;
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init[i].inited = 1;
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return;
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}
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}
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abort();
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}
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static void
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set_pe_subsystem (void)
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{
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const char *sver;
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int len;
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int i;
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static const struct
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{
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const char *name;
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const int value;
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const char *entry;
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}
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v[] =
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{
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{ "native", 1, "_NtProcessStartup" },
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{ "windows", 2, "_WinMainCRTStartup" },
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{ "wwindows", 2, "_wWinMainCRTStartup" },
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{ "console", 3, "_mainCRTStartup" },
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{ "wconsole", 3, "_wmainCRTStartup" },
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{ "posix", 7, "___PosixProcessStartup"},
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{ 0, 0, 0 }
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};
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sver = strchr (optarg, ':');
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if (sver == NULL)
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len = strlen (optarg);
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else
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{
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char *end;
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len = sver - optarg;
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set_pe_name ("__major_subsystem_version__",
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strtoul (sver + 1, &end, 0));
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if (*end == '.')
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set_pe_name ("__minor_subsystem_version__",
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strtoul (end + 1, &end, 0));
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if (*end != '\0')
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einfo (_("%P: warning: bad version number in -subsystem option\n"));
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}
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for (i = 0; v[i].name; i++)
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{
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if (strncmp (optarg, v[i].name, len) == 0
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&& v[i].name[len] == '\0')
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{
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set_pe_name ("__subsystem__", v[i].value);
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/* If the subsystem is windows, we use a different entry
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point. */
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lang_default_entry (v[i].entry);
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return;
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}
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}
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einfo (_("%F%P: invalid subsystem type %s\n"), optarg);
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}
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static void
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set_pe_value (char *name)
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{
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char *end;
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set_pe_name (name, strtoul (optarg, &end, 0));
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if (end == optarg)
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{
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einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg);
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}
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optarg = end;
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}
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static void
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set_pe_stack_heap (char *resname, char *comname)
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{
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set_pe_value (resname);
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if (*optarg == ',')
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{
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optarg++;
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set_pe_value (comname);
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}
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else if (*optarg)
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{
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einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg);
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}
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}
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static bool
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gld${EMULATION_NAME}_handle_option (int optc)
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{
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switch (optc)
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{
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default:
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return false;
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case OPTION_BASE_FILE:
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link_info.base_file = fopen (optarg, FOPEN_WB);
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if (link_info.base_file == NULL)
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einfo (_("%F%P: cannot open base file %s\n"), optarg);
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break;
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/* PE options */
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case OPTION_HEAP:
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set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
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break;
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case OPTION_STACK:
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set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
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break;
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case OPTION_SUBSYSTEM:
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set_pe_subsystem ();
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break;
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case OPTION_MAJOR_OS_VERSION:
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set_pe_value ("__major_os_version__");
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break;
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case OPTION_MINOR_OS_VERSION:
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set_pe_value ("__minor_os_version__");
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break;
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case OPTION_MAJOR_SUBSYSTEM_VERSION:
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set_pe_value ("__major_subsystem_version__");
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break;
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case OPTION_MINOR_SUBSYSTEM_VERSION:
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set_pe_value ("__minor_subsystem_version__");
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break;
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case OPTION_MAJOR_IMAGE_VERSION:
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set_pe_value ("__major_image_version__");
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break;
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case OPTION_MINOR_IMAGE_VERSION:
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set_pe_value ("__minor_image_version__");
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break;
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case OPTION_FILE_ALIGNMENT:
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set_pe_value ("__file_alignment__");
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break;
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case OPTION_SECTION_ALIGNMENT:
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set_pe_value ("__section_alignment__");
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break;
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case OPTION_DLL:
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set_pe_name ("__dll__", 1);
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break;
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case OPTION_IMAGE_BASE:
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set_pe_value ("__image_base__");
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break;
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}
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return true;
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}
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/* Assign values to the special symbols before the linker script is
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read. */
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static void
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gld${EMULATION_NAME}_set_symbols (void)
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{
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/* Run through and invent symbols for all the
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names and insert the defaults. */
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int j;
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if (!init[IMAGEBASEOFF].inited)
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{
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if (bfd_link_relocatable (&link_info))
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init[IMAGEBASEOFF].value = 0;
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else if (init[DLLOFF].value)
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init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE;
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else
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init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE;
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}
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/* Don't do any symbol assignments if this is a relocatable link. */
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if (bfd_link_relocatable (&link_info))
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return;
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/* Glue the assignments into the abs section */
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push_stat_ptr (&abs_output_section->children);
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for (j = 0; init[j].ptr; j++)
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{
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long val = init[j].value;
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lang_add_assignment (exp_assign (init[j].symbol, exp_intop (val),
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false));
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if (init[j].size == sizeof(short))
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*(short *)init[j].ptr = val;
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else if (init[j].size == sizeof(int))
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*(int *)init[j].ptr = val;
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else if (init[j].size == sizeof(long))
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*(long *)init[j].ptr = val;
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/* This might be a long long or other special type. */
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else if (init[j].size == sizeof(bfd_vma))
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*(bfd_vma *)init[j].ptr = val;
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else abort();
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}
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/* Restore the pointer. */
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pop_stat_ptr ();
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if (pe.FileAlignment >
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pe.SectionAlignment)
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{
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einfo (_("%P: warning, file alignment > section alignment\n"));
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}
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}
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static void
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gld${EMULATION_NAME}_after_open (void)
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{
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after_open_default ();
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/* Pass the wacky PE command line options into the output bfd.
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FIXME: This should be done via a function, rather than by
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including an internal BFD header. */
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if (!obj_pe (link_info.output_bfd))
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{
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einfo (_("%F%P: PE operations on non PE file\n"));
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}
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pe_data(link_info.output_bfd)->pe_opthdr = pe;
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pe_data(link_info.output_bfd)->dll = init[DLLOFF].value;
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}
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/* Callback functions for qsort in sort_sections. */
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static int
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sort_by_file_name (const void *a, const void *b)
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{
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const lang_input_section_type *const *ra = a;
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const lang_input_section_type *const *rb = b;
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asection *sa = (*ra)->section;
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asection *sb = (*rb)->section;
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int i, a_sec, b_sec;
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i = filename_cmp (bfd_get_filename (sa->owner->my_archive),
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bfd_get_filename (sb->owner->my_archive));
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if (i != 0)
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return i;
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i = filename_cmp (bfd_get_filename (sa->owner),
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bfd_get_filename (sb->owner));
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if (i != 0)
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return i;
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/* the tail idata4/5 are the only ones without relocs to an
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idata$6 section unless we are importing by ordinal,
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so sort them to last to terminate the IAT
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and HNT properly. if no reloc this one is import by ordinal
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so we have to sort by section contents */
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if (sa->reloc_count + sb->reloc_count != 0)
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{
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i = sa->reloc_count > sb->reloc_count ? -1 : 0;
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if (i != 0)
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return i;
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return sa->reloc_count > sb->reloc_count ? 0 : 1;
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}
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else
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{
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/* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
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if ((strcmp (sa->name, ".idata$6") == 0))
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return 0;
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if (!bfd_get_section_contents (sa->owner, sa, &a_sec, (file_ptr) 0,
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(bfd_size_type) sizeof (a_sec)))
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einfo (_("%F%P: %pB: can't read contents of section .idata: %E\n"),
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sa->owner);
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if (!bfd_get_section_contents (sb->owner, sb, &b_sec, (file_ptr) 0,
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(bfd_size_type) sizeof (b_sec)))
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einfo (_("%F%P: %pB: can't read contents of section .idata: %E\n"),
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sb->owner);
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||
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i = a_sec < b_sec ? -1 : 0;
|
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if (i != 0)
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return i;
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return a_sec < b_sec ? 0 : 1;
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||
}
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||
return 0;
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||
}
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||
|
||
static int
|
||
sort_by_section_name (const void *a, const void *b)
|
||
{
|
||
const lang_input_section_type *const *ra = a;
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||
const lang_input_section_type *const *rb = b;
|
||
const char *sna = (*ra)->section->name;
|
||
const char *snb = (*rb)->section->name;
|
||
int i;
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i = strcmp (sna, snb);
|
||
/* This is a hack to make .stab and .stabstr last, so we don't have
|
||
to fix strip/objcopy for .reloc sections.
|
||
FIXME stripping images with a .rsrc section still needs to be fixed. */
|
||
if (i != 0)
|
||
{
|
||
if ((startswith (sna, ".stab"))
|
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&& (!startswith (snb, ".stab")))
|
||
return 1;
|
||
}
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||
return i;
|
||
}
|
||
|
||
/* Subroutine of sort_sections to a contiguous subset of a list of sections.
|
||
NEXT_AFTER is the element after the last one to sort.
|
||
The result is a pointer to the last element's "next" pointer. */
|
||
|
||
static lang_statement_union_type **
|
||
sort_sections_1 (lang_statement_union_type **startptr,
|
||
lang_statement_union_type *next_after,
|
||
int count,
|
||
int (*sort_func) (const void *, const void *))
|
||
{
|
||
lang_statement_union_type **vec;
|
||
lang_statement_union_type *p;
|
||
int i;
|
||
lang_statement_union_type **ret;
|
||
|
||
if (count == 0)
|
||
return startptr;
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||
|
||
vec = ((lang_statement_union_type **)
|
||
xmalloc (count * sizeof (lang_statement_union_type *)));
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||
|
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for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
|
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vec[i] = p;
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||
|
||
qsort (vec, count, sizeof (vec[0]), sort_func);
|
||
|
||
/* Fill in the next pointers again. */
|
||
*startptr = vec[0];
|
||
for (i = 0; i < count - 1; i++)
|
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vec[i]->header.next = vec[i + 1];
|
||
vec[i]->header.next = next_after;
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ret = &vec[i]->header.next;
|
||
free (vec);
|
||
return ret;
|
||
}
|
||
|
||
/* Sort the .idata\$foo input sections of archives into filename order.
|
||
The reason is so dlltool can arrange to have the pe dll import information
|
||
generated correctly - the head of the list goes into dh.o, the tail into
|
||
dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the
|
||
.idata section.
|
||
FIXME: This may no longer be necessary with grouped sections. Instead of
|
||
sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
|
||
.idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
|
||
This would have to be elaborated upon to handle multiple dll's
|
||
[assuming such an eloboration is possible of course].
|
||
|
||
We also sort sections in '\$' wild statements. These are created by the
|
||
place_orphans routine to implement grouped sections. */
|
||
|
||
static void
|
||
sort_sections (lang_statement_union_type *s)
|
||
{
|
||
for (; s ; s = s->header.next)
|
||
switch (s->header.type)
|
||
{
|
||
case lang_output_section_statement_enum:
|
||
sort_sections (s->output_section_statement.children.head);
|
||
break;
|
||
case lang_wild_statement_enum:
|
||
{
|
||
lang_statement_union_type **p = &s->wild_statement.children.head;
|
||
struct wildcard_list *sec;
|
||
|
||
for (sec = s->wild_statement.section_list; sec; sec = sec->next)
|
||
{
|
||
/* Is this the .idata section? */
|
||
if (sec->spec.name != NULL
|
||
&& startswith (sec->spec.name, ".idata"))
|
||
{
|
||
/* Sort the children. We want to sort any objects in
|
||
the same archive. In order to handle the case of
|
||
including a single archive multiple times, we sort
|
||
all the children by archive name and then by object
|
||
name. After sorting them, we re-thread the pointer
|
||
chain. */
|
||
|
||
while (*p)
|
||
{
|
||
lang_statement_union_type *start = *p;
|
||
if (start->header.type != lang_input_section_enum
|
||
|| !start->input_section.section->owner->my_archive)
|
||
p = &(start->header.next);
|
||
else
|
||
{
|
||
lang_statement_union_type *end;
|
||
int count;
|
||
|
||
for (end = start, count = 0;
|
||
end && (end->header.type
|
||
== lang_input_section_enum);
|
||
end = end->header.next)
|
||
count++;
|
||
|
||
p = sort_sections_1 (p, end, count,
|
||
sort_by_file_name);
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
/* If this is a collection of grouped sections, sort them.
|
||
The linker script must explicitly mention "*(.foo\$)" or
|
||
"*(.foo\$*)". Don't sort them if \$ is not the last
|
||
character (not sure if this is really useful, but it
|
||
allows explicitly mentioning some \$ sections and letting
|
||
the linker handle the rest). */
|
||
if (sec->spec.name != NULL)
|
||
{
|
||
char *q = strchr (sec->spec.name, '\$');
|
||
|
||
if (q != NULL
|
||
&& (q[1] == '\0'
|
||
|| (q[1] == '*' && q[2] == '\0')))
|
||
{
|
||
lang_statement_union_type *end;
|
||
int count;
|
||
|
||
for (end = *p, count = 0; end; end = end->header.next)
|
||
{
|
||
if (end->header.type != lang_input_section_enum)
|
||
abort ();
|
||
count++;
|
||
}
|
||
(void) sort_sections_1 (p, end, count,
|
||
sort_by_section_name);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gld${EMULATION_NAME}_before_allocation (void)
|
||
{
|
||
#ifdef TARGET_IS_armpe
|
||
/* FIXME: we should be able to set the size of the interworking stub
|
||
section.
|
||
|
||
Here we rummage through the found bfds to collect glue
|
||
information. FIXME: should this be based on a command line
|
||
option? krk@cygnus.com */
|
||
{
|
||
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
||
{
|
||
if (!arm_process_before_allocation (is->the_bfd, & link_info))
|
||
{
|
||
einfo (_("%P: errors encountered processing file %s\n"),
|
||
is->filename);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* We have seen it all. Allocate it, and carry on */
|
||
arm_allocate_interworking_sections (& link_info);
|
||
#endif /* TARGET_IS_armpe */
|
||
|
||
sort_sections (stat_ptr->head);
|
||
|
||
before_allocation_default ();
|
||
}
|
||
|
||
/* Place an orphan section. We use this to put sections with a '\$' in them
|
||
into the right place. Any section with a '\$' in them (e.g. .text\$foo)
|
||
gets mapped to the output section with everything from the '\$' on stripped
|
||
(e.g. .text).
|
||
See the Microsoft Portable Executable and Common Object File Format
|
||
Specification 4.1, section 4.2, Grouped Sections.
|
||
|
||
FIXME: This is now handled by the linker script using wildcards,
|
||
but I'm leaving this here in case we want to enable it for sections
|
||
which are not mentioned in the linker script. */
|
||
|
||
static lang_output_section_statement_type *
|
||
gld${EMULATION_NAME}_place_orphan (asection *s,
|
||
const char *secname,
|
||
int constraint)
|
||
{
|
||
char *output_secname, *ps;
|
||
lang_output_section_statement_type *os;
|
||
lang_statement_union_type *l;
|
||
|
||
if ((s->flags & SEC_ALLOC) == 0)
|
||
return NULL;
|
||
|
||
/* Don't process grouped sections unless doing a final link.
|
||
If they're marked as COMDAT sections, we don't want .text\$foo to
|
||
end up in .text and then have .text disappear because it's marked
|
||
link-once-discard. */
|
||
if (bfd_link_relocatable (&link_info))
|
||
return NULL;
|
||
|
||
/* Everything from the '\$' on gets deleted so don't allow '\$' as the
|
||
first character. */
|
||
if (*secname == '\$')
|
||
einfo (_("%F%P: section %s has '\$' as first character\n"), secname);
|
||
if (strchr (secname + 1, '\$') == NULL)
|
||
return NULL;
|
||
|
||
/* Look up the output section. The Microsoft specs say sections names in
|
||
image files never contain a '\$'. Fortunately, lang_..._lookup creates
|
||
the section if it doesn't exist. */
|
||
output_secname = xstrdup (secname);
|
||
ps = strchr (output_secname + 1, '\$');
|
||
*ps = 0;
|
||
os = lang_output_section_statement_lookup (output_secname, constraint, true);
|
||
|
||
/* Find the '\$' wild statement for this section. We currently require the
|
||
linker script to explicitly mention "*(.foo\$)". */
|
||
|
||
ps[0] = '\$';
|
||
ps[1] = 0;
|
||
for (l = os->children.head; l; l = l->header.next)
|
||
if (l->header.type == lang_wild_statement_enum)
|
||
{
|
||
struct wildcard_list *sec;
|
||
|
||
for (sec = l->wild_statement.section_list; sec; sec = sec->next)
|
||
if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0)
|
||
break;
|
||
if (sec)
|
||
break;
|
||
}
|
||
ps[0] = 0;
|
||
if (l == NULL)
|
||
einfo (_("%F%P: *(%s\$) missing from linker script\n"), output_secname);
|
||
|
||
/* Link the input section in and we're done for now.
|
||
The sections still have to be sorted, but that has to wait until
|
||
all such sections have been processed by us. The sorting is done by
|
||
sort_sections. */
|
||
lang_add_section (&l->wild_statement.children, s, NULL, NULL, os);
|
||
|
||
return os;
|
||
}
|
||
|
||
static char *
|
||
gld${EMULATION_NAME}_get_script (int *isfile)
|
||
EOF
|
||
|
||
if test x"$COMPILE_IN" = xyes
|
||
then
|
||
# Scripts compiled in.
|
||
|
||
# sed commands to quote an ld script as a C string.
|
||
sc="-f ${srcdir}/emultempl/stringify.sed"
|
||
|
||
fragment <<EOF
|
||
{
|
||
*isfile = 0;
|
||
|
||
if (bfd_link_relocatable (&link_info) && config.build_constructors)
|
||
return
|
||
EOF
|
||
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
|
||
echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
|
||
sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
|
||
echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
|
||
sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
|
||
echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
|
||
sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
|
||
echo ' ; else return' >> e${EMULATION_NAME}.c
|
||
sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
|
||
echo '; }' >> e${EMULATION_NAME}.c
|
||
|
||
else
|
||
# Scripts read from the filesystem.
|
||
|
||
fragment <<EOF
|
||
{
|
||
*isfile = 1;
|
||
|
||
if (bfd_link_relocatable (&link_info) && config.build_constructors)
|
||
return "ldscripts/${EMULATION_NAME}.xu";
|
||
else if (bfd_link_relocatable (&link_info))
|
||
return "ldscripts/${EMULATION_NAME}.xr";
|
||
else if (!config.text_read_only)
|
||
return "ldscripts/${EMULATION_NAME}.xbn";
|
||
else if (!config.magic_demand_paged)
|
||
return "ldscripts/${EMULATION_NAME}.xn";
|
||
else
|
||
return "ldscripts/${EMULATION_NAME}.x";
|
||
}
|
||
EOF
|
||
fi
|
||
|
||
LDEMUL_AFTER_OPEN=gld${EMULATION_NAME}_after_open
|
||
LDEMUL_BEFORE_ALLOCATION=gld${EMULATION_NAME}_before_allocation
|
||
LDEMUL_PLACE_ORPHAN=gld${EMULATION_NAME}_place_orphan
|
||
LDEMUL_SET_SYMBOLS=gld${EMULATION_NAME}_set_symbols
|
||
LDEMUL_ADD_OPTIONS=gld${EMULATION_NAME}_add_options
|
||
LDEMUL_HANDLE_OPTION=gld${EMULATION_NAME}_handle_option
|
||
|
||
source_em ${srcdir}/emultempl/emulation.em
|