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https://sourceware.org/git/binutils-gdb.git
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1180 lines
35 KiB
Plaintext
1180 lines
35 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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(echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
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cat >>e${EMULATION_NAME}.c <<EOF
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/* This file is part of GLD, the Gnu Linker.
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Copyright 1995, 96, 97, 1998 Free Software Foundation, Inc.
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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 2 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
|
||
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 "bfd.h"
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#include "sysdep.h"
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#include "bfdlink.h"
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#include "getopt.h"
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#include "libiberty.h"
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#include "ld.h"
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#include "ldmain.h"
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#include "ldgram.h"
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#include "ldexp.h"
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#include "ldlang.h"
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#include "ldemul.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 "ldfile.h"
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#include "coff/internal.h"
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#include "../bfd/libcoff.h"
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#include "../bfd/libbfd.h"
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#include "deffile.h"
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#define TARGET_IS_${EMULATION_NAME}
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#if defined(TARGET_IS_i386pe)
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#define DLL_SUPPORT
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#endif
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#define PE_DEF_SUBSYSTEM 3
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static void gld_${EMULATION_NAME}_set_symbols PARAMS ((void));
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static void gld_${EMULATION_NAME}_after_open PARAMS ((void));
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static void gld_${EMULATION_NAME}_before_parse PARAMS ((void));
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static void gld_${EMULATION_NAME}_after_parse PARAMS ((void));
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static void gld_${EMULATION_NAME}_before_allocation PARAMS ((void));
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static boolean gld_${EMULATION_NAME}_place_orphan
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PARAMS ((lang_input_statement_type *, asection *));
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static void gld${EMULATION_NAME}_place_section
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PARAMS ((lang_statement_union_type *));
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static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *));
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static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **));
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static struct internal_extra_pe_aouthdr pe;
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static int dll;
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static int support_old_code = 0;
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extern def_file *pe_def_file;
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static lang_assignment_statement_type *image_base_statement = 0;
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static char *pe_out_def_filename = 0;
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extern int pe_dll_export_everything;
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extern int pe_dll_kill_ats;
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extern int pe_dll_stdcall_aliases;
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static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */
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static char *pe_implib_filename = 0;
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extern const char *output_filename;
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static void
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gld_${EMULATION_NAME}_before_parse()
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{
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output_filename = "a.exe";
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ldfile_output_architecture = bfd_arch_${ARCH};
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#ifdef DLL_SUPPORT
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config.has_shared = 1;
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#endif
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}
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/* PE format extra command line options. */
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/* Used for setting flags in the PE header. */
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#define OPTION_BASE_FILE (300 + 1)
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#define OPTION_DLL (OPTION_BASE_FILE + 1)
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#define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
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#define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
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#define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
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#define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
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#define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
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#define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
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#define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
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#define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
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#define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
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#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
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#define OPTION_SUBSYSTEM (OPTION_STACK + 1)
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#define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
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#define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
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#define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
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#define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
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#define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
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#define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1)
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#define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
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#define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
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#define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
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#define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
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static struct option longopts[] =
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{
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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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{"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
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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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{"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
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#ifdef DLL_SUPPORT
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/* getopt allows abbreviations, so we do this to stop it from treating -o
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as an abbreviation for this option */
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{"output-def", required_argument, NULL, OPTION_OUT_DEF},
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{"output-def", required_argument, NULL, OPTION_OUT_DEF},
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{"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
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{"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
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{"kill-at", no_argument, NULL, OPTION_KILL_ATS},
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{"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
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{"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
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{"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
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{"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
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#endif
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{NULL, no_argument, NULL, 0}
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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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{
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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__", NT_EXE_IMAGE_BASE),
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#define DLLOFF 1
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{&dll, sizeof(dll), 0, "__dll__"},
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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__", PE_DEF_SUBSYSTEM),
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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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gld_${EMULATION_NAME}_list_options (file)
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FILE * file;
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{
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fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
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fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
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fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
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fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
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fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
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fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
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fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
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fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
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fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
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fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
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fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
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fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
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fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
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fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
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fprintf (file, _(" --support-old-code Support interworking with old code\n"));
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#ifdef DLL_SUPPORT
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fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
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fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
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fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
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fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
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fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
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fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
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fprintf (file, _(" --out-implib <file> Generate import library\n"));
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fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
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#endif
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}
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static void
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set_pe_name (name, val)
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char *name;
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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 ()
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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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{ "console", 3, "_mainCRTStartup" },
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#if 0
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/* The Microsoft linker does not recognize this. */
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{ "os2", 5, "" },
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#endif
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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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lang_add_entry (v[i].entry, 1);
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return;
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}
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}
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einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
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}
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static void
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set_pe_value (name)
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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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einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
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optarg = end;
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}
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static void
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set_pe_stack_heap (resname, comname)
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char *resname;
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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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einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
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}
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static int
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gld_${EMULATION_NAME}_parse_args(argc, argv)
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int argc;
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char **argv;
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{
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int longind;
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int optc;
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int prevoptind = optind;
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int prevopterr = opterr;
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int wanterror;
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static int lastoptind = -1;
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if (lastoptind != optind)
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opterr = 0;
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wanterror = opterr;
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lastoptind = optind;
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optc = getopt_long_only (argc, argv, "-", longopts, &longind);
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opterr = prevopterr;
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switch (optc)
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{
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default:
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if (wanterror)
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xexit (1);
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optind = prevoptind;
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return 0;
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||
|
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case OPTION_BASE_FILE:
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link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
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||
if (link_info.base_file == NULL)
|
||
{
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||
/* xgettext:c-format */
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||
fprintf (stderr, _("%s: Can't open base file %s\n"),
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program_name, optarg);
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xexit (1);
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}
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break;
|
||
|
||
/* PE options */
|
||
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__");
|
||
break;
|
||
case OPTION_SUBSYSTEM:
|
||
set_pe_subsystem ();
|
||
break;
|
||
case OPTION_MAJOR_OS_VERSION:
|
||
set_pe_value ("__major_os_version__");
|
||
break;
|
||
case OPTION_MINOR_OS_VERSION:
|
||
set_pe_value ("__minor_os_version__");
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||
break;
|
||
case OPTION_MAJOR_SUBSYSTEM_VERSION:
|
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set_pe_value ("__major_subsystem_version__");
|
||
break;
|
||
case OPTION_MINOR_SUBSYSTEM_VERSION:
|
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set_pe_value ("__minor_subsystem_version__");
|
||
break;
|
||
case OPTION_MAJOR_IMAGE_VERSION:
|
||
set_pe_value ("__major_image_version__");
|
||
break;
|
||
case OPTION_MINOR_IMAGE_VERSION:
|
||
set_pe_value ("__minor_image_version__");
|
||
break;
|
||
case OPTION_FILE_ALIGNMENT:
|
||
set_pe_value ("__file_alignment__");
|
||
break;
|
||
case OPTION_SECTION_ALIGNMENT:
|
||
set_pe_value ("__section_alignment__");
|
||
break;
|
||
case OPTION_DLL:
|
||
set_pe_name ("__dll__", 1);
|
||
break;
|
||
case OPTION_IMAGE_BASE:
|
||
set_pe_value ("__image_base__");
|
||
break;
|
||
case OPTION_SUPPORT_OLD_CODE:
|
||
support_old_code = 1;
|
||
break;
|
||
#ifdef DLL_SUPPORT
|
||
case OPTION_OUT_DEF:
|
||
pe_out_def_filename = xstrdup (optarg);
|
||
break;
|
||
case OPTION_EXPORT_ALL:
|
||
pe_dll_export_everything = 1;
|
||
break;
|
||
case OPTION_EXCLUDE_SYMBOLS:
|
||
pe_dll_add_excludes (optarg);
|
||
break;
|
||
case OPTION_KILL_ATS:
|
||
pe_dll_kill_ats = 1;
|
||
break;
|
||
case OPTION_STDCALL_ALIASES:
|
||
pe_dll_stdcall_aliases = 1;
|
||
break;
|
||
case OPTION_ENABLE_STDCALL_FIXUP:
|
||
pe_enable_stdcall_fixup = 1;
|
||
break;
|
||
case OPTION_DISABLE_STDCALL_FIXUP:
|
||
pe_enable_stdcall_fixup = 0;
|
||
break;
|
||
case OPTION_IMPLIB_FILENAME:
|
||
pe_implib_filename = xstrdup (optarg);
|
||
break;
|
||
#endif
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
/* Assign values to the special symbols before the linker script is
|
||
read. */
|
||
|
||
static void
|
||
gld_${EMULATION_NAME}_set_symbols ()
|
||
{
|
||
/* Run through and invent symbols for all the
|
||
names and insert the defaults. */
|
||
int j;
|
||
lang_statement_list_type *save;
|
||
|
||
if (!init[IMAGEBASEOFF].inited)
|
||
{
|
||
if (link_info.relocateable)
|
||
init[IMAGEBASEOFF].value = 0;
|
||
else if (init[DLLOFF].value || link_info.shared)
|
||
init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
|
||
else
|
||
init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
|
||
}
|
||
|
||
/* Don't do any symbol assignments if this is a relocateable link. */
|
||
if (link_info.relocateable)
|
||
return;
|
||
|
||
/* Glue the assignments into the abs section */
|
||
save = stat_ptr;
|
||
|
||
stat_ptr = &(abs_output_section->children);
|
||
|
||
for (j = 0; init[j].ptr; j++)
|
||
{
|
||
long val = init[j].value;
|
||
lang_assignment_statement_type *rv;
|
||
rv = lang_add_assignment (exp_assop ('=' ,init[j].symbol, exp_intop (val)));
|
||
if (init[j].size == sizeof(short))
|
||
*(short *)init[j].ptr = val;
|
||
else if (init[j].size == sizeof(int))
|
||
*(int *)init[j].ptr = val;
|
||
else if (init[j].size == sizeof(long))
|
||
*(long *)init[j].ptr = val;
|
||
/* This might be a long long or other special type. */
|
||
else if (init[j].size == sizeof(bfd_vma))
|
||
*(bfd_vma *)init[j].ptr = val;
|
||
else abort();
|
||
if (j == IMAGEBASEOFF)
|
||
image_base_statement = rv;
|
||
}
|
||
/* Restore the pointer. */
|
||
stat_ptr = save;
|
||
|
||
if (pe.FileAlignment >
|
||
pe.SectionAlignment)
|
||
{
|
||
einfo (_("%P: warning, file alignment > section alignment.\n"));
|
||
}
|
||
}
|
||
|
||
/* This is called after the linker script and the command line options
|
||
have been read. */
|
||
|
||
static void
|
||
gld_${EMULATION_NAME}_after_parse ()
|
||
{
|
||
/* The Windows libraries are designed for the linker to treat the
|
||
entry point as an undefined symbol. Otherwise, the .obj that
|
||
defines mainCRTStartup is brought in because it is the first
|
||
encountered in libc.lib and it has other symbols in it which will
|
||
be pulled in by the link process. To avoid this, we act as
|
||
though the user specified -u with the entry point symbol.
|
||
|
||
This function is called after the linker script and command line
|
||
options have been read, so at this point we know the right entry
|
||
point. This function is called before the input files are
|
||
opened, so registering the symbol as undefined will make a
|
||
difference. */
|
||
|
||
if (entry_symbol)
|
||
ldlang_add_undef (entry_symbol);
|
||
}
|
||
|
||
static struct bfd_link_hash_entry *pe_undef_found_sym;
|
||
|
||
static boolean
|
||
pe_undef_cdecl_match (h, string)
|
||
struct bfd_link_hash_entry *h;
|
||
PTR string;
|
||
{
|
||
int sl = strlen (string);
|
||
if (h->type == bfd_link_hash_defined
|
||
&& strncmp (h->root.string, string, sl) == 0
|
||
&& h->root.string[sl] == '@')
|
||
{
|
||
pe_undef_found_sym = h;
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
static void
|
||
pe_fixup_stdcalls ()
|
||
{
|
||
static int gave_warning_message = 0;
|
||
struct bfd_link_hash_entry *undef, *sym;
|
||
char *at;
|
||
for (undef = link_info.hash->undefs; undef; undef=undef->next)
|
||
if (undef->type == bfd_link_hash_undefined)
|
||
{
|
||
at = strchr (undef->root.string, '@');
|
||
if (at)
|
||
{
|
||
/* The symbol is a stdcall symbol, so let's look for a cdecl
|
||
symbol with the same name and resolve to that */
|
||
char *cname = xstrdup (undef->root.string);
|
||
at = strchr (cname, '@');
|
||
*at = 0;
|
||
sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
|
||
if (sym && sym->type == bfd_link_hash_defined)
|
||
{
|
||
undef->type = bfd_link_hash_defined;
|
||
undef->u.def.value = sym->u.def.value;
|
||
undef->u.def.section = sym->u.def.section;
|
||
if (pe_enable_stdcall_fixup == -1)
|
||
{
|
||
einfo (_("Warning: resolving %s by linking to %s\n"),
|
||
undef->root.string, cname);
|
||
if (! gave_warning_message)
|
||
{
|
||
gave_warning_message = 1;
|
||
einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
|
||
einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* The symbol is a cdecl symbol, so we look for stdcall
|
||
symbols - which means scanning the whole symbol table */
|
||
pe_undef_found_sym = 0;
|
||
bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
|
||
(PTR) undef->root.string);
|
||
sym = pe_undef_found_sym;
|
||
if (sym)
|
||
{
|
||
undef->type = bfd_link_hash_defined;
|
||
undef->u.def.value = sym->u.def.value;
|
||
undef->u.def.section = sym->u.def.section;
|
||
if (pe_enable_stdcall_fixup == -1)
|
||
{
|
||
einfo (_("Warning: resolving %s by linking to %s\n"),
|
||
undef->root.string, sym->root.string);
|
||
if (! gave_warning_message)
|
||
{
|
||
gave_warning_message = 1;
|
||
einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
|
||
einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gld_${EMULATION_NAME}_after_open ()
|
||
{
|
||
/* Pass the wacky PE command line options into the output bfd.
|
||
FIXME: This should be done via a function, rather than by
|
||
including an internal BFD header. */
|
||
|
||
if (!coff_data (output_bfd)->pe)
|
||
einfo (_("%F%P: PE operations on non PE file.\n"));
|
||
|
||
pe_data (output_bfd)->pe_opthdr = pe;
|
||
pe_data (output_bfd)->dll = init[DLLOFF].value;
|
||
|
||
#ifdef DLL_SUPPORT
|
||
if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
|
||
pe_fixup_stdcalls ();
|
||
|
||
pe_process_import_defs(output_bfd, &link_info);
|
||
if (link_info.shared)
|
||
pe_dll_build_sections (output_bfd, &link_info);
|
||
#endif
|
||
|
||
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
|
||
{
|
||
/* Find a BFD that can hold the interworking stubs. */
|
||
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
||
{
|
||
if (bfd_arm_pe_get_bfd_for_interworking (is->the_bfd, & link_info))
|
||
break;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
{
|
||
static int sequence = 0;
|
||
int is_ms_arch;
|
||
bfd *cur_arch = 0, *elt;
|
||
lang_input_statement_type *is2;
|
||
/* Careful - this is a shell script. Watch those dollar signs! */
|
||
/* Microsoft import libraries have every member named the same,
|
||
and not in the right order for us to link them correctly. We
|
||
must detect these and rename the members so that they'll link
|
||
correctly. There are three types of objects: the head, the
|
||
thunks, and the sentinel(s). The head is easy; it's the one
|
||
with idata2. We assume that the sentinels won't have relocs,
|
||
and the thunks will. It's easier than checking the symbol
|
||
table for external references. */
|
||
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
||
{
|
||
if (is->the_bfd->my_archive)
|
||
{
|
||
bfd *arch = is->the_bfd->my_archive;
|
||
if (cur_arch != arch)
|
||
{
|
||
cur_arch = arch;
|
||
is_ms_arch = 1;
|
||
for (is2 = is;
|
||
is2 && is2->the_bfd->my_archive == arch;
|
||
is2 = (lang_input_statement_type *)is2->next)
|
||
{
|
||
if (strcmp (is->the_bfd->filename, is2->the_bfd->filename))
|
||
is_ms_arch = 0;
|
||
}
|
||
}
|
||
|
||
if (is_ms_arch)
|
||
{
|
||
int idata2 = 0, i, reloc_count=0;
|
||
asection *sec;
|
||
char *new_name, seq;
|
||
for (sec = is->the_bfd->sections; sec; sec = sec->next)
|
||
{
|
||
if (strcmp (sec->name, ".idata\$2") == 0)
|
||
idata2 = 1;
|
||
reloc_count += sec->reloc_count;
|
||
}
|
||
|
||
if (idata2) /* .idata2 is the TOC */
|
||
seq = 'a';
|
||
else if (reloc_count > 0) /* thunks */
|
||
seq = 'b';
|
||
else /* sentinel */
|
||
seq = 'c';
|
||
|
||
new_name = bfd_alloc (is->the_bfd,
|
||
strlen (is->the_bfd->filename)+2);
|
||
sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
|
||
is->the_bfd->filename = new_name;
|
||
|
||
new_name = bfd_alloc(is->the_bfd, strlen(is->filename)+2);
|
||
sprintf (new_name, "%s.%c", is->filename, seq);
|
||
is->filename = new_name;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gld_${EMULATION_NAME}_before_allocation()
|
||
{
|
||
#ifdef TARGET_IS_ppcpe
|
||
/* Here we rummage through the found bfds to collect toc information */
|
||
{
|
||
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
||
{
|
||
if (!ppc_process_before_allocation (is->the_bfd, &link_info))
|
||
{
|
||
/* xgettext:c-format */
|
||
einfo (_("Errors encountered processing file %s\n"), is->filename);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* We have seen it all. Allocate it, and carry on */
|
||
ppc_allocate_toc_section (&link_info);
|
||
#endif /* TARGET_IS_ppcpe */
|
||
|
||
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
|
||
/* 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 (! bfd_arm_pe_process_before_allocation
|
||
(is->the_bfd, & link_info, support_old_code))
|
||
{
|
||
/* xgettext:c-format */
|
||
einfo (_("Errors encountered processing file %s for interworking"),
|
||
is->filename);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* We have seen it all. Allocate it, and carry on */
|
||
bfd_arm_pe_allocate_interworking_sections (& link_info);
|
||
#endif /* TARGET_IS_armpe */
|
||
}
|
||
|
||
|
||
/* This is called when an input file isn't recognized as a BFD. We
|
||
check here for .DEF files and pull them in automatically. */
|
||
|
||
static int
|
||
saw_option(char *option)
|
||
{
|
||
int i;
|
||
for (i=0; init[i].ptr; i++)
|
||
if (strcmp (init[i].symbol, option) == 0)
|
||
return init[i].inited;
|
||
return 0;
|
||
}
|
||
|
||
static boolean
|
||
gld_${EMULATION_NAME}_unrecognized_file(entry)
|
||
lang_input_statement_type *entry;
|
||
{
|
||
#ifdef DLL_SUPPORT
|
||
const char *ext = entry->filename + strlen (entry->filename) - 4;
|
||
|
||
if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
|
||
{
|
||
if (pe_def_file == 0)
|
||
pe_def_file = def_file_empty ();
|
||
def_file_parse (entry->filename, pe_def_file);
|
||
if (pe_def_file)
|
||
{
|
||
int i, buflen=0, len;
|
||
char *buf;
|
||
for (i=0; i<pe_def_file->num_exports; i++)
|
||
{
|
||
len = strlen(pe_def_file->exports[i].internal_name);
|
||
if (buflen < len+2)
|
||
buflen = len+2;
|
||
}
|
||
buf = (char *) xmalloc (buflen);
|
||
for (i=0; i<pe_def_file->num_exports; i++)
|
||
{
|
||
struct bfd_link_hash_entry *h;
|
||
sprintf(buf, "_%s", pe_def_file->exports[i].internal_name);
|
||
|
||
h = bfd_link_hash_lookup (link_info.hash, buf, true, true, true);
|
||
if (h == (struct bfd_link_hash_entry *) NULL)
|
||
einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
|
||
if (h->type == bfd_link_hash_new)
|
||
{
|
||
h->type = bfd_link_hash_undefined;
|
||
h->u.undef.abfd = NULL;
|
||
bfd_link_add_undef (link_info.hash, h);
|
||
}
|
||
}
|
||
free (buf);
|
||
|
||
/* def_file_print (stdout, pe_def_file); */
|
||
if (pe_def_file->is_dll == 1)
|
||
link_info.shared = 1;
|
||
|
||
if (pe_def_file->base_address != (bfd_vma)(-1))
|
||
{
|
||
pe.ImageBase =
|
||
pe_data (output_bfd)->pe_opthdr.ImageBase =
|
||
init[IMAGEBASEOFF].value = pe_def_file->base_address;
|
||
init[IMAGEBASEOFF].inited = 1;
|
||
if (image_base_statement)
|
||
image_base_statement->exp =
|
||
exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase));
|
||
}
|
||
|
||
#if 0
|
||
/* Not sure if these *should* be set */
|
||
if (pe_def_file->version_major != -1)
|
||
{
|
||
pe.MajorImageVersion = pe_def_file->version_major;
|
||
pe.MinorImageVersion = pe_def_file->version_minor;
|
||
}
|
||
#endif
|
||
if (pe_def_file->stack_reserve != -1
|
||
&& ! saw_option ("__size_of_stack_reserve__"))
|
||
{
|
||
pe.SizeOfStackReserve = pe_def_file->stack_reserve;
|
||
if (pe_def_file->stack_commit != -1)
|
||
pe.SizeOfStackCommit = pe_def_file->stack_commit;
|
||
}
|
||
if (pe_def_file->heap_reserve != -1
|
||
&& ! saw_option ("__size_of_heap_reserve__"))
|
||
{
|
||
pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
|
||
if (pe_def_file->heap_commit != -1)
|
||
pe.SizeOfHeapCommit = pe_def_file->heap_commit;
|
||
}
|
||
return true;
|
||
}
|
||
}
|
||
#endif
|
||
return false;
|
||
|
||
}
|
||
|
||
static boolean
|
||
gld_${EMULATION_NAME}_recognized_file(entry)
|
||
lang_input_statement_type *entry;
|
||
{
|
||
#ifdef DLL_SUPPORT
|
||
#ifdef TARGET_IS_i386pe
|
||
pe_dll_id_target ("pei-i386");
|
||
#endif
|
||
if (bfd_get_format (entry->the_bfd) == bfd_object)
|
||
{
|
||
const char *ext = entry->filename + strlen (entry->filename) - 4;
|
||
if (strcmp (ext, ".dll") == 0 || strcmp (ext, ".DLL") == 0)
|
||
return pe_implied_import_dll (entry->filename);
|
||
}
|
||
#endif
|
||
return false;
|
||
}
|
||
|
||
static void
|
||
gld_${EMULATION_NAME}_finish ()
|
||
{
|
||
#ifdef DLL_SUPPORT
|
||
if (link_info.shared)
|
||
{
|
||
pe_dll_fill_sections (output_bfd, &link_info);
|
||
if (pe_implib_filename)
|
||
pe_dll_generate_implib (pe_def_file, pe_implib_filename);
|
||
}
|
||
if (pe_out_def_filename)
|
||
pe_dll_generate_def_file (pe_out_def_filename);
|
||
#endif
|
||
}
|
||
|
||
|
||
/* Place an orphan section.
|
||
|
||
We use this to put sections in a reasonable place in the file, and
|
||
to ensure that they are aligned as required.
|
||
|
||
We handle grouped sections here as well. A section named .foo$nn
|
||
goes into the output section .foo. All grouped sections are sorted
|
||
by name.
|
||
|
||
Grouped sections for the default sections are handled by the
|
||
default linker script using wildcards, and are sorted by
|
||
sort_sections. */
|
||
|
||
static asection *hold_section;
|
||
static char *hold_section_name;
|
||
static lang_output_section_statement_type *hold_use;
|
||
static lang_output_section_statement_type *hold_text;
|
||
static lang_output_section_statement_type *hold_rdata;
|
||
static lang_output_section_statement_type *hold_data;
|
||
static lang_output_section_statement_type *hold_bss;
|
||
|
||
/* Place an orphan section. We use this to put random SHF_ALLOC
|
||
sections in the right segment. */
|
||
|
||
/*ARGSUSED*/
|
||
static boolean
|
||
gld_${EMULATION_NAME}_place_orphan (file, s)
|
||
lang_input_statement_type *file;
|
||
asection *s;
|
||
{
|
||
const char *secname;
|
||
char *dollar;
|
||
|
||
if ((s->flags & SEC_ALLOC) == 0)
|
||
return false;
|
||
|
||
secname = bfd_get_section_name (s->owner, s);
|
||
|
||
/* Look through the script to see where to place this section. */
|
||
|
||
hold_section = s;
|
||
|
||
hold_section_name = xstrdup (secname);
|
||
dollar = strchr (hold_section_name, '$');
|
||
if (dollar != NULL)
|
||
*dollar = '\0';
|
||
|
||
hold_use = NULL;
|
||
lang_for_each_statement (gld${EMULATION_NAME}_place_section);
|
||
|
||
if (hold_use == NULL)
|
||
{
|
||
lang_output_section_statement_type *place;
|
||
char *outsecname;
|
||
asection *snew, **pps;
|
||
lang_statement_list_type *old;
|
||
lang_statement_list_type add;
|
||
etree_type *address;
|
||
|
||
/* Try to put the new output section in a reasonable place based
|
||
on the section name and section flags. */
|
||
place = NULL;
|
||
if ((s->flags & SEC_HAS_CONTENTS) == 0
|
||
&& hold_bss != NULL)
|
||
place = hold_bss;
|
||
else if ((s->flags & SEC_READONLY) == 0
|
||
&& hold_data != NULL)
|
||
place = hold_data;
|
||
else if ((s->flags & SEC_CODE) == 0
|
||
&& (s->flags & SEC_READONLY) != 0
|
||
&& hold_rdata != NULL)
|
||
place = hold_rdata;
|
||
else if ((s->flags & SEC_READONLY) != 0
|
||
&& hold_text != NULL)
|
||
place = hold_text;
|
||
|
||
/* Choose a unique name for the section. This will be needed if
|
||
the same section name appears in the input file with
|
||
different loadable or allocateable characteristics. */
|
||
outsecname = xstrdup (hold_section_name);
|
||
if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
|
||
{
|
||
unsigned int len;
|
||
char *newname;
|
||
unsigned int i;
|
||
|
||
len = strlen (outsecname);
|
||
newname = xmalloc (len + 5);
|
||
strcpy (newname, outsecname);
|
||
i = 0;
|
||
do
|
||
{
|
||
sprintf (newname + len, "%d", i);
|
||
++i;
|
||
}
|
||
while (bfd_get_section_by_name (output_bfd, newname) != NULL);
|
||
|
||
free (outsecname);
|
||
outsecname = newname;
|
||
}
|
||
|
||
/* We don't want to free OUTSECNAME, as it may get attached to
|
||
the output section statement. */
|
||
|
||
/* Create the section in the output file, and put it in the
|
||
right place. This shuffling is to make the output file look
|
||
neater. */
|
||
snew = bfd_make_section (output_bfd, outsecname);
|
||
if (snew == NULL)
|
||
einfo ("%P%F: output format %s cannot represent section called %s\n",
|
||
output_bfd->xvec->name, outsecname);
|
||
if (place != NULL && place->bfd_section != NULL)
|
||
{
|
||
for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
|
||
;
|
||
*pps = snew->next;
|
||
snew->next = place->bfd_section->next;
|
||
place->bfd_section->next = snew;
|
||
}
|
||
|
||
/* Start building a list of statements for this section. */
|
||
old = stat_ptr;
|
||
stat_ptr = &add;
|
||
lang_list_init (stat_ptr);
|
||
|
||
if (link_info.relocateable)
|
||
address = NULL;
|
||
else
|
||
{
|
||
/* All sections in an executable must be aligned to a page
|
||
boundary. */
|
||
address = exp_unop (ALIGN_K,
|
||
exp_nameop (NAME, "__section_alignment__"));
|
||
}
|
||
|
||
lang_enter_output_section_statement (outsecname, address, 0,
|
||
(bfd_vma) 0,
|
||
(etree_type *) NULL,
|
||
(etree_type *) NULL,
|
||
(etree_type *) NULL);
|
||
|
||
hold_use = lang_output_section_statement_lookup (outsecname);
|
||
|
||
lang_leave_output_section_statement
|
||
((bfd_vma) 0, "*default*",
|
||
(struct lang_output_section_phdr_list *) NULL);
|
||
|
||
/* Now stick the new statement list right after PLACE. */
|
||
if (place != NULL)
|
||
{
|
||
*add.tail = place->header.next;
|
||
place->header.next = add.head;
|
||
}
|
||
|
||
stat_ptr = old;
|
||
}
|
||
|
||
if (dollar == NULL)
|
||
wild_doit (&hold_use->children, s, hold_use, file);
|
||
else
|
||
{
|
||
lang_statement_union_type **pl;
|
||
boolean found_dollar;
|
||
lang_statement_list_type list;
|
||
|
||
/* The section name has a '$'. Sort it with the other '$'
|
||
sections. */
|
||
|
||
found_dollar = false;
|
||
for (pl = &hold_use->children.head; *pl != NULL; pl = &(*pl)->next)
|
||
{
|
||
lang_input_section_type *ls;
|
||
const char *lname;
|
||
|
||
if ((*pl)->header.type != lang_input_section_enum)
|
||
continue;
|
||
|
||
ls = &(*pl)->input_section;
|
||
|
||
lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section);
|
||
if (strchr (lname, '$') == NULL)
|
||
{
|
||
if (found_dollar)
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
found_dollar = true;
|
||
if (strcmp (secname, lname) < 0)
|
||
break;
|
||
}
|
||
}
|
||
|
||
lang_list_init (&list);
|
||
wild_doit (&list, s, hold_use, file);
|
||
if (list.head != NULL)
|
||
{
|
||
ASSERT (list.head->next == NULL);
|
||
list.head->next = *pl;
|
||
*pl = list.head;
|
||
}
|
||
}
|
||
|
||
free (hold_section_name);
|
||
|
||
return true;
|
||
}
|
||
|
||
static void
|
||
gld${EMULATION_NAME}_place_section (s)
|
||
lang_statement_union_type *s;
|
||
{
|
||
lang_output_section_statement_type *os;
|
||
|
||
if (s->header.type != lang_output_section_statement_enum)
|
||
return;
|
||
|
||
os = &s->output_section_statement;
|
||
|
||
if (strcmp (os->name, hold_section_name) == 0
|
||
&& os->bfd_section != NULL
|
||
&& ((hold_section->flags & (SEC_LOAD | SEC_ALLOC))
|
||
== (os->bfd_section->flags & (SEC_LOAD | SEC_ALLOC))))
|
||
hold_use = os;
|
||
|
||
if (strcmp (os->name, ".text") == 0)
|
||
hold_text = os;
|
||
else if (strcmp (os->name, ".rdata") == 0)
|
||
hold_rdata = os;
|
||
else if (strcmp (os->name, ".data") == 0)
|
||
hold_data = os;
|
||
else if (strcmp (os->name, ".bss") == 0)
|
||
hold_bss = os;
|
||
}
|
||
|
||
static char *
|
||
gld_${EMULATION_NAME}_get_script(isfile)
|
||
int *isfile;
|
||
EOF
|
||
# Scripts compiled in.
|
||
# sed commands to quote an ld script as a C string.
|
||
sc="-f ${srcdir}/emultempl/stringify.sed"
|
||
|
||
cat >>e${EMULATION_NAME}.c <<EOF
|
||
{
|
||
*isfile = 0;
|
||
|
||
if (link_info.relocateable == true && config.build_constructors == true)
|
||
return
|
||
EOF
|
||
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
|
||
echo ' ; else if (link_info.relocateable == true) return' >> e${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
|
||
|
||
cat >>e${EMULATION_NAME}.c <<EOF
|
||
|
||
|
||
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
|
||
{
|
||
gld_${EMULATION_NAME}_before_parse,
|
||
syslib_default,
|
||
hll_default,
|
||
gld_${EMULATION_NAME}_after_parse,
|
||
gld_${EMULATION_NAME}_after_open,
|
||
after_allocation_default,
|
||
set_output_arch_default,
|
||
ldemul_default_target,
|
||
gld_${EMULATION_NAME}_before_allocation,
|
||
gld_${EMULATION_NAME}_get_script,
|
||
"${EMULATION_NAME}",
|
||
"${OUTPUT_FORMAT}",
|
||
gld_${EMULATION_NAME}_finish, /* finish */
|
||
NULL, /* create output section statements */
|
||
NULL, /* open dynamic archive */
|
||
gld_${EMULATION_NAME}_place_orphan,
|
||
gld_${EMULATION_NAME}_set_symbols,
|
||
gld_${EMULATION_NAME}_parse_args,
|
||
gld_${EMULATION_NAME}_unrecognized_file,
|
||
gld_${EMULATION_NAME}_list_options,
|
||
gld_${EMULATION_NAME}_recognized_file
|
||
};
|
||
EOF
|