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25844aaec2
bomb on /DISCARD/ input section.
* emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
* emultempl/mmo.em (mmo_place_orphan): Likewise.
1951 lines
60 KiB
Plaintext
1951 lines
60 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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if [ -z "$MACHINE" ]; then
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OUTPUT_ARCH=${ARCH}
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else
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OUTPUT_ARCH=${ARCH}:${MACHINE}
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fi
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rm -f e${EMULATION_NAME}.c
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(echo;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, 1996, 1997, 1998, 1999, 2000, 2001, 2002
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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
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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., 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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#define TARGET_IS_${EMULATION_NAME}
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/* Do this before including bfd.h, so we prototype the right functions. */
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#ifdef TARGET_IS_arm_epoc_pe
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#define bfd_arm_pe_allocate_interworking_sections \
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bfd_arm_epoc_pe_allocate_interworking_sections
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#define bfd_arm_pe_get_bfd_for_interworking \
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bfd_arm_epoc_pe_get_bfd_for_interworking
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#define bfd_arm_pe_process_before_allocation \
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bfd_arm_epoc_pe_process_before_allocation
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#endif
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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 "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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/* FIXME: This is a BFD internal header file, and we should not be
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using it here. */
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#include "../bfd/libcoff.h"
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#include "deffile.h"
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#include "pe-dll.h"
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#include <ctype.h>
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/* Permit the emulation parameters to override the default section
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alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
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it seem that include/coff/internal.h should not define
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PE_DEF_SECTION_ALIGNMENT. */
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#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
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#undef PE_DEF_SECTION_ALIGNMENT
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#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
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#endif
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#if defined(TARGET_IS_i386pe)
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#define DLL_SUPPORT
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#endif
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#if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe) || defined(TARGET_IS_armpe)
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#define DLL_SUPPORT
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#endif
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#if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
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#define PE_DEF_SUBSYSTEM 3
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#else
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#undef NT_EXE_IMAGE_BASE
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#undef PE_DEF_SECTION_ALIGNMENT
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#undef PE_DEF_FILE_ALIGNMENT
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#define NT_EXE_IMAGE_BASE 0x00010000
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#ifdef TARGET_IS_armpe
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#define PE_DEF_SECTION_ALIGNMENT 0x00001000
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#define PE_DEF_SUBSYSTEM 9
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#else
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#define PE_DEF_SECTION_ALIGNMENT 0x00000400
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#define PE_DEF_SUBSYSTEM 2
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#endif
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#define PE_DEF_FILE_ALIGNMENT 0x00000200
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#endif
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static void gld_${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 asection *output_prev_sec_find
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PARAMS ((lang_output_section_statement_type *));
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static boolean gld_${EMULATION_NAME}_place_orphan
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PARAMS ((lang_input_statement_type *, asection *));
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static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *));
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static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **));
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static void gld_${EMULATION_NAME}_finish PARAMS ((void));
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static boolean gld_${EMULATION_NAME}_open_dynamic_archive
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PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
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static void gld_${EMULATION_NAME}_list_options PARAMS ((FILE *));
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static void set_pe_name PARAMS ((char *, long));
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static void set_pe_subsystem PARAMS ((void));
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static void set_pe_value PARAMS ((char *));
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static void set_pe_stack_heap PARAMS ((char *, char *));
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#ifdef DLL_SUPPORT
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static boolean pe_undef_cdecl_match
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PARAMS ((struct bfd_link_hash_entry *, PTR));
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static void pe_fixup_stdcalls PARAMS ((void));
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static int make_import_fixup PARAMS ((arelent *, asection *));
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static void pe_find_data_imports PARAMS ((void));
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#endif
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static boolean pr_sym PARAMS ((struct bfd_hash_entry *, PTR string));
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static boolean gld_${EMULATION_NAME}_unrecognized_file
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PARAMS ((lang_input_statement_type *));
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static boolean gld_${EMULATION_NAME}_recognized_file
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PARAMS ((lang_input_statement_type *));
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static int gld_${EMULATION_NAME}_find_potential_libraries
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PARAMS ((char *, lang_input_statement_type *));
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static struct internal_extra_pe_aouthdr pe;
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static int dll;
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static int support_old_code = 0;
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static char * thumb_entry_symbol = NULL;
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static lang_assignment_statement_type *image_base_statement = 0;
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#ifdef DLL_SUPPORT
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static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */
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static char *pe_out_def_filename = NULL;
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static char *pe_implib_filename = NULL;
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static int pe_enable_auto_image_base = 0;
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static char *pe_dll_search_prefix = NULL;
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#endif
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extern const char *output_filename;
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static void
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gld_${EMULATION_NAME}_before_parse()
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{
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const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}");
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if (arch)
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{
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ldfile_output_architecture = arch->arch;
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ldfile_output_machine = arch->mach;
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ldfile_output_machine_name = arch->printable_name;
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}
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else
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ldfile_output_architecture = bfd_arch_${ARCH};
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output_filename = "${EXECUTABLE_NAME:-a.exe}";
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#ifdef DLL_SUPPORT
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config.dynamic_link = true;
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config.has_shared = 1;
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link_info.pei386_auto_import = -1;
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#if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
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#if defined TARGET_IS_mipspe || defined TARGET_IS_armpe
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lang_add_entry ("WinMainCRTStartup", 1);
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#else
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lang_add_entry ("_WinMainCRTStartup", 1);
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#endif
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#endif
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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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#define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
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#define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
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#define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
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#define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
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#define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
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#define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
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#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
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#define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
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#define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
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#define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
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#define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
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static struct option longopts[] = {
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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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{"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
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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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{"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
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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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{"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
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{"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
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{"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
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{"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
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{"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
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{"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
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{"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
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{"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
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{"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
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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__", 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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#ifdef TARGET_IS_armpe
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D(MajorSubsystemVersion,"__major_subsystem_version__", 2),
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#else
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D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
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#endif
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D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
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D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
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D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
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D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
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D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
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D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
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D(LoaderFlags,"__loader_flags__", 0x0),
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{ NULL, 0, 0, NULL, 0 }
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};
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static void
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gld_${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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fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\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, _(" --exclude-libs lib,lib,... Exclude libraries 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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fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
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fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
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create __imp_<SYMBOL> as well.\n"));
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fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
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unless user specifies one\n"));
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fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
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fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without an\n\
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importlib, use <string><basename>.dll \n\
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in preference to lib<basename>.dll \n"));
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fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to \n\
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__imp_sym for DATA references\n"));
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fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
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fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
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or linking to DLLs (esp. auto-import)\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
|
||
set_pe_subsystem ()
|
||
{
|
||
const char *sver;
|
||
int len;
|
||
int i;
|
||
static const struct
|
||
{
|
||
const char *name;
|
||
const int value;
|
||
const char *entry;
|
||
}
|
||
v[] =
|
||
{
|
||
{ "native", 1, "NtProcessStartup" },
|
||
#if defined TARGET_IS_mipspe || defined TARGET_IS_armpe
|
||
{ "windows", 2, "WinMainCRTStartup" },
|
||
#else
|
||
{ "windows", 2, "WinMainCRTStartup" },
|
||
#endif
|
||
{ "console", 3, "mainCRTStartup" },
|
||
#if 0
|
||
/* The Microsoft linker does not recognize this. */
|
||
{ "os2", 5, "" },
|
||
#endif
|
||
{ "posix", 7, "__PosixProcessStartup"},
|
||
{ "wince", 9, "_WinMainCRTStartup" },
|
||
{ 0, 0, 0 }
|
||
};
|
||
|
||
sver = strchr (optarg, ':');
|
||
if (sver == NULL)
|
||
len = strlen (optarg);
|
||
else
|
||
{
|
||
char *end;
|
||
|
||
len = sver - optarg;
|
||
set_pe_name ("__major_subsystem_version__",
|
||
strtoul (sver + 1, &end, 0));
|
||
if (*end == '.')
|
||
set_pe_name ("__minor_subsystem_version__",
|
||
strtoul (end + 1, &end, 0));
|
||
if (*end != '\0')
|
||
einfo (_("%P: warning: bad version number in -subsystem option\n"));
|
||
}
|
||
|
||
for (i = 0; v[i].name; i++)
|
||
{
|
||
if (strncmp (optarg, v[i].name, len) == 0
|
||
&& v[i].name[len] == '\0')
|
||
{
|
||
const char *initial_symbol_char;
|
||
const char *entry;
|
||
|
||
set_pe_name ("__subsystem__", v[i].value);
|
||
|
||
initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
|
||
if (*initial_symbol_char == '\0')
|
||
entry = v[i].entry;
|
||
else
|
||
{
|
||
char *alc_entry;
|
||
|
||
/* lang_add_entry expects its argument to be permanently
|
||
allocated, so we don't free this string. */
|
||
alc_entry = xmalloc (strlen (initial_symbol_char)
|
||
+ strlen (v[i].entry)
|
||
+ 1);
|
||
strcpy (alc_entry, initial_symbol_char);
|
||
strcat (alc_entry, v[i].entry);
|
||
entry = alc_entry;
|
||
}
|
||
|
||
lang_add_entry (entry, 0);
|
||
|
||
return;
|
||
}
|
||
}
|
||
|
||
einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
|
||
}
|
||
|
||
|
||
|
||
static void
|
||
set_pe_value (name)
|
||
char *name;
|
||
|
||
{
|
||
char *end;
|
||
|
||
set_pe_name (name, strtoul (optarg, &end, 0));
|
||
|
||
if (end == optarg)
|
||
einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
|
||
|
||
optarg = end;
|
||
}
|
||
|
||
static void
|
||
set_pe_stack_heap (resname, comname)
|
||
char *resname;
|
||
char *comname;
|
||
{
|
||
set_pe_value (resname);
|
||
|
||
if (*optarg == ',')
|
||
{
|
||
optarg++;
|
||
set_pe_value (comname);
|
||
}
|
||
else if (*optarg)
|
||
einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
|
||
}
|
||
|
||
|
||
|
||
static int
|
||
gld_${EMULATION_NAME}_parse_args(argc, argv)
|
||
int argc;
|
||
char **argv;
|
||
{
|
||
int longind;
|
||
int optc;
|
||
int prevoptind = optind;
|
||
int prevopterr = opterr;
|
||
int wanterror;
|
||
static int lastoptind = -1;
|
||
|
||
if (lastoptind != optind)
|
||
opterr = 0;
|
||
wanterror = opterr;
|
||
|
||
lastoptind = optind;
|
||
|
||
optc = getopt_long_only (argc, argv, "-", longopts, &longind);
|
||
opterr = prevopterr;
|
||
|
||
switch (optc)
|
||
{
|
||
default:
|
||
if (wanterror)
|
||
xexit (1);
|
||
optind = prevoptind;
|
||
return 0;
|
||
|
||
case OPTION_BASE_FILE:
|
||
link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
|
||
if (link_info.base_file == NULL)
|
||
{
|
||
/* xgettext:c-format */
|
||
fprintf (stderr, _("%s: Can't open base file %s\n"),
|
||
program_name, optarg);
|
||
xexit (1);
|
||
}
|
||
break;
|
||
|
||
/* PE options */
|
||
case OPTION_HEAP:
|
||
set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
|
||
break;
|
||
case OPTION_STACK:
|
||
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__");
|
||
break;
|
||
case OPTION_MAJOR_SUBSYSTEM_VERSION:
|
||
set_pe_value ("__major_subsystem_version__");
|
||
break;
|
||
case OPTION_MINOR_SUBSYSTEM_VERSION:
|
||
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;
|
||
case OPTION_THUMB_ENTRY:
|
||
thumb_entry_symbol = optarg;
|
||
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, 0);
|
||
break;
|
||
case OPTION_EXCLUDE_LIBS:
|
||
pe_dll_add_excludes (optarg, 1);
|
||
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;
|
||
case OPTION_WARN_DUPLICATE_EXPORTS:
|
||
pe_dll_warn_dup_exports = 1;
|
||
break;
|
||
case OPTION_IMP_COMPAT:
|
||
pe_dll_compat_implib = 1;
|
||
break;
|
||
case OPTION_ENABLE_AUTO_IMAGE_BASE:
|
||
pe_enable_auto_image_base = 1;
|
||
break;
|
||
case OPTION_DISABLE_AUTO_IMAGE_BASE:
|
||
pe_enable_auto_image_base = 0;
|
||
break;
|
||
case OPTION_DLL_SEARCH_PREFIX:
|
||
pe_dll_search_prefix = xstrdup( optarg );
|
||
break;
|
||
case OPTION_NO_DEFAULT_EXCLUDES:
|
||
pe_dll_do_default_excludes = 0;
|
||
break;
|
||
case OPTION_DLL_ENABLE_AUTO_IMPORT:
|
||
link_info.pei386_auto_import = 1;
|
||
break;
|
||
case OPTION_DLL_DISABLE_AUTO_IMPORT:
|
||
link_info.pei386_auto_import = 0;
|
||
break;
|
||
case OPTION_ENABLE_EXTRA_PE_DEBUG:
|
||
pe_dll_extra_pe_debug = 1;
|
||
break;
|
||
#endif
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
|
||
#ifdef DLL_SUPPORT
|
||
static unsigned long
|
||
strhash (const char *str)
|
||
{
|
||
const unsigned char *s;
|
||
unsigned long hash;
|
||
unsigned int c;
|
||
unsigned int len;
|
||
|
||
hash = 0;
|
||
len = 0;
|
||
s = (const unsigned char *) str;
|
||
while ((c = *s++) != '\0')
|
||
{
|
||
hash += c + (c << 17);
|
||
hash ^= hash >> 2;
|
||
++len;
|
||
}
|
||
hash += len + (len << 17);
|
||
hash ^= hash >> 2;
|
||
|
||
return hash;
|
||
}
|
||
|
||
/* Use the output file to create a image base for relocatable DLLs. */
|
||
static unsigned long
|
||
compute_dll_image_base (const char *ofile)
|
||
{
|
||
unsigned long hash = strhash (ofile);
|
||
return 0x60000000 | ((hash << 16) & 0x0FFC0000);
|
||
}
|
||
#endif
|
||
|
||
/* Assign values to the special symbols before the linker script is
|
||
read. */
|
||
|
||
static void
|
||
gld_${EMULATION_NAME}_set_symbols ()
|
||
{
|
||
/* Run through and invent symbols for all the
|
||
names and insert the defaults. */
|
||
int j;
|
||
lang_statement_list_type *save;
|
||
|
||
if (!init[IMAGEBASEOFF].inited)
|
||
{
|
||
if (link_info.relocateable)
|
||
init[IMAGEBASEOFF].value = 0;
|
||
else if (init[DLLOFF].value || link_info.shared)
|
||
#ifdef DLL_SUPPORT
|
||
init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ?
|
||
compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
|
||
#else
|
||
init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
|
||
#endif
|
||
else
|
||
init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
|
||
}
|
||
|
||
/* Don't do any symbol assignments if this is a relocateable link. */
|
||
if (link_info.relocateable)
|
||
return;
|
||
|
||
/* Glue the assignments into the abs section */
|
||
save = stat_ptr;
|
||
|
||
stat_ptr = &(abs_output_section->children);
|
||
|
||
for (j = 0; init[j].ptr; j++)
|
||
{
|
||
long val = init[j].value;
|
||
lang_assignment_statement_type *rv;
|
||
rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
|
||
exp_intop (val)));
|
||
if (init[j].size == sizeof(short))
|
||
*(short *)init[j].ptr = val;
|
||
else if (init[j].size == sizeof(int))
|
||
*(int *)init[j].ptr = val;
|
||
else if (init[j].size == sizeof(long))
|
||
*(long *)init[j].ptr = val;
|
||
/* This might be a long long or other special type. */
|
||
else if (init[j].size == sizeof(bfd_vma))
|
||
*(bfd_vma *)init[j].ptr = val;
|
||
else abort();
|
||
if (j == IMAGEBASEOFF)
|
||
image_base_statement = rv;
|
||
}
|
||
/* Restore the pointer. */
|
||
stat_ptr = save;
|
||
|
||
if (pe.FileAlignment >
|
||
pe.SectionAlignment)
|
||
{
|
||
einfo (_("%P: warning, file alignment > section alignment.\n"));
|
||
}
|
||
}
|
||
|
||
/* This is called after the linker script and the command line options
|
||
have been read. */
|
||
|
||
static void
|
||
gld_${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 (! link_info.relocateable && entry_symbol.name != NULL)
|
||
ldlang_add_undef (entry_symbol.name);
|
||
}
|
||
|
||
/* pe-dll.c directly accesses pe_data_import_dll,
|
||
so it must be defined outside of #ifdef DLL_SUPPORT.
|
||
Note - this variable is deliberately not initialised.
|
||
This allows it to be treated as a common varaible, and only
|
||
exist in one incarnation in a multiple target enabled linker. */
|
||
char * pe_data_import_dll;
|
||
|
||
#ifdef DLL_SUPPORT
|
||
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;
|
||
sl = strlen (string); /* silence compiler warning */
|
||
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;
|
||
if (pe_dll_extra_pe_debug)
|
||
{
|
||
printf ("%s\n", __FUNCTION__);
|
||
}
|
||
|
||
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 int
|
||
make_import_fixup (rel, s)
|
||
arelent *rel;
|
||
asection *s;
|
||
{
|
||
struct symbol_cache_entry *sym = *rel->sym_ptr_ptr;
|
||
|
||
if (pe_dll_extra_pe_debug)
|
||
{
|
||
printf ("arelent: %s@%#lx: add=%li\n", sym->name,
|
||
(long) rel->address, (long) rel->addend);
|
||
}
|
||
|
||
{
|
||
int addend = 0;
|
||
if (!bfd_get_section_contents(s->owner, s, &addend, rel->address, sizeof(addend)))
|
||
{
|
||
einfo (_("%C: Cannot get section contents - auto-import exception\n"),
|
||
s->owner, s, rel->address);
|
||
}
|
||
|
||
if (addend == 0)
|
||
pe_create_import_fixup (rel);
|
||
else
|
||
{
|
||
einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"),
|
||
s->owner, s, rel->address, sym->name);
|
||
einfo ("%X");
|
||
}
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
static void
|
||
pe_find_data_imports ()
|
||
{
|
||
struct bfd_link_hash_entry *undef, *sym;
|
||
for (undef = link_info.hash->undefs; undef; undef=undef->next)
|
||
{
|
||
if (undef->type == bfd_link_hash_undefined)
|
||
{
|
||
/* C++ symbols are *long* */
|
||
char buf[4096];
|
||
if (pe_dll_extra_pe_debug)
|
||
{
|
||
printf ("%s:%s\n", __FUNCTION__, undef->root.string);
|
||
}
|
||
sprintf (buf, "__imp_%s", undef->root.string);
|
||
|
||
sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
|
||
if (sym && sym->type == bfd_link_hash_defined)
|
||
{
|
||
if (link_info.pei386_auto_import == -1)
|
||
info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
|
||
undef->root.string, buf);
|
||
{
|
||
bfd *b = sym->u.def.section->owner;
|
||
asymbol **symbols;
|
||
int nsyms, symsize, i;
|
||
|
||
symsize = bfd_get_symtab_upper_bound (b);
|
||
symbols = (asymbol **) xmalloc (symsize);
|
||
nsyms = bfd_canonicalize_symtab (b, symbols);
|
||
|
||
for (i = 0; i < nsyms; i++)
|
||
{
|
||
if (memcmp(symbols[i]->name, "__head_",
|
||
sizeof ("__head_") - 1))
|
||
continue;
|
||
if (pe_dll_extra_pe_debug)
|
||
{
|
||
printf ("->%s\n", symbols[i]->name);
|
||
}
|
||
pe_data_import_dll = (char*) (symbols[i]->name +
|
||
sizeof ("__head_") - 1);
|
||
break;
|
||
}
|
||
}
|
||
|
||
pe_walk_relocs_of_symbol (&link_info, undef->root.string,
|
||
make_import_fixup);
|
||
|
||
/* let's differentiate it somehow from defined */
|
||
undef->type = bfd_link_hash_defweak;
|
||
/* we replace original name with __imp_ prefixed, this
|
||
1) may trash memory 2) leads to duplicate symbol generation.
|
||
Still, IMHO it's better than having name poluted. */
|
||
undef->root.string = sym->root.string;
|
||
undef->u.def.value = sym->u.def.value;
|
||
undef->u.def.section = sym->u.def.section;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
#endif /* DLL_SUPPORT */
|
||
|
||
static boolean
|
||
pr_sym (h, string)
|
||
struct bfd_hash_entry *h;
|
||
PTR string ATTRIBUTE_UNUSED;
|
||
{
|
||
if (pe_dll_extra_pe_debug)
|
||
{
|
||
printf("+%s\n",h->string);
|
||
}
|
||
return true;
|
||
}
|
||
|
||
|
||
static void
|
||
gld_${EMULATION_NAME}_after_open ()
|
||
{
|
||
|
||
if (pe_dll_extra_pe_debug)
|
||
{
|
||
bfd *a;
|
||
struct bfd_link_hash_entry *sym;
|
||
printf ("%s()\n", __FUNCTION__);
|
||
|
||
for (sym = link_info.hash->undefs; sym; sym=sym->next)
|
||
printf ("-%s\n", sym->root.string);
|
||
bfd_hash_traverse (&link_info.hash->table, pr_sym,NULL);
|
||
|
||
for (a = link_info.input_bfds; a; a = a->link_next)
|
||
{
|
||
printf("*%s\n",a->filename);
|
||
}
|
||
}
|
||
|
||
/* 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) == NULL || coff_data (output_bfd)->pe == 0)
|
||
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_find_data_imports ();
|
||
|
||
pe_process_import_defs(output_bfd, &link_info);
|
||
if (link_info.shared)
|
||
pe_dll_build_sections (output_bfd, &link_info);
|
||
|
||
#ifndef TARGET_IS_i386pe
|
||
#ifndef TARGET_IS_armpe
|
||
else
|
||
pe_exe_build_sections (output_bfd, &link_info);
|
||
#endif
|
||
#endif
|
||
#endif
|
||
|
||
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
|
||
if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
|
||
{
|
||
/* The arm backend needs special fields in the output hash structure.
|
||
These will only be created if the output format is an arm format,
|
||
hence we do not support linking and changing output formats at the
|
||
same time. Use a link followed by objcopy to change output formats. */
|
||
einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
|
||
return;
|
||
}
|
||
{
|
||
/* 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
|
||
|
||
{
|
||
/* This next chunk of code tries to detect the case where you have
|
||
two import libraries for the same DLL (specifically,
|
||
symbolically linking libm.a and libc.a in cygwin to
|
||
libcygwin.a). In those cases, it's possible for function
|
||
thunks from the second implib to be used but without the
|
||
head/tail objects, causing an improper import table. We detect
|
||
those cases and rename the "other" import libraries to match
|
||
the one the head/tail come from, so that the linker will sort
|
||
things nicely and produce a valid import table. */
|
||
|
||
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
||
{
|
||
if (is->the_bfd->my_archive)
|
||
{
|
||
int idata2 = 0, reloc_count=0, is_imp = 0;
|
||
asection *sec;
|
||
|
||
/* See if this is an import library thunk. */
|
||
for (sec = is->the_bfd->sections; sec; sec = sec->next)
|
||
{
|
||
if (strcmp (sec->name, ".idata\$2") == 0)
|
||
idata2 = 1;
|
||
if (strncmp (sec->name, ".idata\$", 7) == 0)
|
||
is_imp = 1;
|
||
reloc_count += sec->reloc_count;
|
||
}
|
||
|
||
if (is_imp && !idata2 && reloc_count)
|
||
{
|
||
/* It is, look for the reference to head and see if it's
|
||
from our own library. */
|
||
for (sec = is->the_bfd->sections; sec; sec = sec->next)
|
||
{
|
||
int i;
|
||
long symsize;
|
||
long relsize;
|
||
asymbol **symbols;
|
||
arelent **relocs;
|
||
int nrelocs;
|
||
|
||
symsize = bfd_get_symtab_upper_bound (is->the_bfd);
|
||
if (symsize < 1)
|
||
break;
|
||
relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
|
||
if (relsize < 1)
|
||
break;
|
||
|
||
symbols = (asymbol **) xmalloc (symsize);
|
||
symsize = bfd_canonicalize_symtab (is->the_bfd, symbols);
|
||
if (symsize < 0)
|
||
{
|
||
einfo ("%X%P: unable to process symbols: %E");
|
||
return;
|
||
}
|
||
|
||
relocs = (arelent **) xmalloc ((size_t) relsize);
|
||
nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
|
||
relocs, symbols);
|
||
if (nrelocs < 0)
|
||
{
|
||
free (relocs);
|
||
einfo ("%X%P: unable to process relocs: %E");
|
||
return;
|
||
}
|
||
|
||
for (i = 0; i < nrelocs; i++)
|
||
{
|
||
struct symbol_cache_entry *s;
|
||
struct bfd_link_hash_entry * blhe;
|
||
bfd *other_bfd;
|
||
char *n;
|
||
|
||
s = (relocs[i]->sym_ptr_ptr)[0];
|
||
|
||
if (s->flags & BSF_LOCAL)
|
||
continue;
|
||
|
||
/* Thunk section with reloc to another bfd. */
|
||
blhe = bfd_link_hash_lookup (link_info.hash,
|
||
s->name,
|
||
false, false, true);
|
||
|
||
if (blhe == NULL
|
||
|| blhe->type != bfd_link_hash_defined)
|
||
continue;
|
||
|
||
other_bfd = blhe->u.def.section->owner;
|
||
|
||
if (strcmp (is->the_bfd->my_archive->filename,
|
||
other_bfd->my_archive->filename) == 0)
|
||
continue;
|
||
|
||
/* Rename this implib to match the other. */
|
||
n = (char *) xmalloc (strlen (other_bfd->my_archive->filename) + 1);
|
||
|
||
strcpy (n, other_bfd->my_archive->filename);
|
||
|
||
is->the_bfd->my_archive->filename = n;
|
||
}
|
||
|
||
free (relocs);
|
||
/* Note - we do not free the symbols,
|
||
they are now cached in the BFD. */
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
{
|
||
int is_ms_arch = 0;
|
||
bfd *cur_arch = 0;
|
||
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, 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 = xmalloc (strlen (is->the_bfd->filename) + 3);
|
||
sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
|
||
is->the_bfd->filename = new_name;
|
||
|
||
new_name = xmalloc (strlen (is->filename) + 3);
|
||
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 */
|
||
}
|
||
|
||
#ifdef DLL_SUPPORT
|
||
/* 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;
|
||
}
|
||
#endif /* DLL_SUPPORT */
|
||
|
||
static boolean
|
||
gld_${EMULATION_NAME}_unrecognized_file(entry)
|
||
lang_input_statement_type *entry ATTRIBUTE_UNUSED;
|
||
{
|
||
#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 ATTRIBUTE_UNUSED;
|
||
{
|
||
#ifdef DLL_SUPPORT
|
||
#ifdef TARGET_IS_i386pe
|
||
pe_dll_id_target ("pei-i386");
|
||
#endif
|
||
#ifdef TARGET_IS_shpe
|
||
pe_dll_id_target ("pei-shl");
|
||
#endif
|
||
#ifdef TARGET_IS_mipspe
|
||
pe_dll_id_target ("pei-mips");
|
||
#endif
|
||
#ifdef TARGET_IS_armpe
|
||
pe_dll_id_target ("pei-arm-little");
|
||
#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 ()
|
||
{
|
||
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
|
||
struct bfd_link_hash_entry * h;
|
||
|
||
if (thumb_entry_symbol != NULL)
|
||
{
|
||
h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, false, false, true);
|
||
|
||
if (h != (struct bfd_link_hash_entry *) NULL
|
||
&& (h->type == bfd_link_hash_defined
|
||
|| h->type == bfd_link_hash_defweak)
|
||
&& h->u.def.section->output_section != NULL)
|
||
{
|
||
static char buffer[32];
|
||
bfd_vma val;
|
||
|
||
/* Special procesing is required for a Thumb entry symbol. The
|
||
bottom bit of its address must be set. */
|
||
val = (h->u.def.value
|
||
+ bfd_get_section_vma (output_bfd,
|
||
h->u.def.section->output_section)
|
||
+ h->u.def.section->output_offset);
|
||
|
||
val |= 1;
|
||
|
||
/* Now convert this value into a string and store it in entry_symbol
|
||
where the lang_finish() function will pick it up. */
|
||
buffer[0] = '0';
|
||
buffer[1] = 'x';
|
||
|
||
sprintf_vma (buffer + 2, val);
|
||
|
||
if (entry_symbol.name != NULL && entry_from_cmdline)
|
||
einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
|
||
thumb_entry_symbol, entry_symbol.name);
|
||
entry_symbol.name = buffer;
|
||
}
|
||
else
|
||
einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol);
|
||
}
|
||
#endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) */
|
||
|
||
#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 defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
|
||
/* ARM doesn't need relocs. */
|
||
else
|
||
{
|
||
pe_exe_fill_sections (output_bfd, &link_info);
|
||
}
|
||
#endif
|
||
|
||
if (pe_out_def_filename)
|
||
pe_dll_generate_def_file (pe_out_def_filename);
|
||
#endif /* DLL_SUPPORT */
|
||
|
||
/* I don't know where .idata gets set as code, but it shouldn't be */
|
||
{
|
||
asection *asec = bfd_get_section_by_name (output_bfd, ".idata");
|
||
if (asec)
|
||
{
|
||
asec->flags &= ~SEC_CODE;
|
||
asec->flags |= SEC_DATA;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
/* Find the last output section before given output statement.
|
||
Used by place_orphan. */
|
||
|
||
static asection *
|
||
output_prev_sec_find (os)
|
||
lang_output_section_statement_type *os;
|
||
{
|
||
asection *s = (asection *) NULL;
|
||
lang_statement_union_type *u;
|
||
lang_output_section_statement_type *lookup;
|
||
|
||
for (u = lang_output_section_statement.head;
|
||
u != (lang_statement_union_type *) NULL;
|
||
u = lookup->next)
|
||
{
|
||
lookup = &u->output_section_statement;
|
||
if (lookup == os)
|
||
return s;
|
||
|
||
if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
|
||
s = lookup->bfd_section;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* 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. */
|
||
|
||
struct orphan_save
|
||
{
|
||
lang_output_section_statement_type *os;
|
||
asection **section;
|
||
lang_statement_union_type **stmt;
|
||
};
|
||
|
||
/*ARGSUSED*/
|
||
static boolean
|
||
gld_${EMULATION_NAME}_place_orphan (file, s)
|
||
lang_input_statement_type *file;
|
||
asection *s;
|
||
{
|
||
const char *secname;
|
||
char *hold_section_name;
|
||
char *dollar = NULL;
|
||
const char *ps = NULL;
|
||
lang_output_section_statement_type *os;
|
||
lang_statement_list_type add_child;
|
||
|
||
secname = bfd_get_section_name (s->owner, s);
|
||
|
||
/* Look through the script to see where to place this section. */
|
||
|
||
hold_section_name = xstrdup (secname);
|
||
if (!link_info.relocateable)
|
||
{
|
||
dollar = strchr (hold_section_name, '$');
|
||
if (dollar != NULL)
|
||
*dollar = '\0';
|
||
}
|
||
|
||
os = lang_output_section_find (hold_section_name);
|
||
|
||
lang_list_init (&add_child);
|
||
|
||
if (os != NULL
|
||
&& (os->bfd_section == NULL
|
||
|| ((s->flags ^ os->bfd_section->flags)
|
||
& (SEC_LOAD | SEC_ALLOC)) == 0))
|
||
{
|
||
/* We already have an output section statement with this
|
||
name, and its bfd section, if any, has compatible flags. */
|
||
lang_add_section (&add_child, s, os, file);
|
||
}
|
||
else
|
||
{
|
||
struct orphan_save *place;
|
||
static struct orphan_save hold_text;
|
||
static struct orphan_save hold_rdata;
|
||
static struct orphan_save hold_data;
|
||
static struct orphan_save hold_bss;
|
||
char *outsecname;
|
||
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. */
|
||
#define HAVE_SECTION(hold, name) \
|
||
(hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
|
||
|
||
place = NULL;
|
||
if ((s->flags & SEC_ALLOC) == 0)
|
||
;
|
||
else if ((s->flags & SEC_HAS_CONTENTS) == 0
|
||
&& HAVE_SECTION (hold_bss, ".bss"))
|
||
place = &hold_bss;
|
||
else if ((s->flags & SEC_READONLY) == 0
|
||
&& HAVE_SECTION (hold_data, ".data"))
|
||
place = &hold_data;
|
||
else if ((s->flags & SEC_CODE) == 0
|
||
&& (s->flags & SEC_READONLY) != 0
|
||
&& HAVE_SECTION (hold_rdata, ".rdata"))
|
||
place = &hold_rdata;
|
||
else if ((s->flags & SEC_READONLY) != 0
|
||
&& HAVE_SECTION (hold_text, ".text"))
|
||
place = &hold_text;
|
||
|
||
#undef HAVE_SECTION
|
||
|
||
/* 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 allocatable 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;
|
||
}
|
||
|
||
/* Start building a list of statements for this section. */
|
||
old = stat_ptr;
|
||
stat_ptr = &add;
|
||
lang_list_init (stat_ptr);
|
||
|
||
if (config.build_constructors)
|
||
{
|
||
/* If the name of the section is representable in C, then create
|
||
symbols to mark the start and the end of the section. */
|
||
for (ps = outsecname; *ps != '\0'; ps++)
|
||
if (! isalnum ((unsigned char) *ps) && *ps != '_')
|
||
break;
|
||
if (*ps == '\0')
|
||
{
|
||
char *symname;
|
||
etree_type *e_align;
|
||
|
||
symname = (char *) xmalloc (ps - outsecname + sizeof "___start_");
|
||
sprintf (symname, "___start_%s", outsecname);
|
||
e_align = exp_unop (ALIGN_K,
|
||
exp_intop ((bfd_vma) 1 << s->alignment_power));
|
||
lang_add_assignment (exp_assop ('=', symname, e_align));
|
||
}
|
||
}
|
||
|
||
if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
|
||
address = exp_intop ((bfd_vma) 0);
|
||
else
|
||
{
|
||
/* All sections in an executable must be aligned to a page
|
||
boundary. */
|
||
address = exp_unop (ALIGN_K,
|
||
exp_nameop (NAME, "__section_alignment__"));
|
||
}
|
||
|
||
os = lang_enter_output_section_statement (outsecname, address, 0,
|
||
(bfd_vma) 0,
|
||
(etree_type *) NULL,
|
||
(etree_type *) NULL,
|
||
(etree_type *) NULL);
|
||
|
||
lang_add_section (&add_child, s, os, file);
|
||
|
||
lang_leave_output_section_statement
|
||
((bfd_vma) 0, "*default*",
|
||
(struct lang_output_section_phdr_list *) NULL, NULL);
|
||
|
||
if (config.build_constructors && *ps == '\0')
|
||
{
|
||
char *symname;
|
||
|
||
/* lang_leave_ouput_section_statement resets stat_ptr. Put
|
||
stat_ptr back where we want it. */
|
||
if (place != NULL)
|
||
stat_ptr = &add;
|
||
|
||
symname = (char *) xmalloc (ps - outsecname + sizeof "___stop_");
|
||
sprintf (symname, "___stop_%s", outsecname);
|
||
lang_add_assignment (exp_assop ('=', symname,
|
||
exp_nameop (NAME, ".")));
|
||
}
|
||
|
||
stat_ptr = old;
|
||
|
||
if (place != NULL && os->bfd_section != NULL)
|
||
{
|
||
asection *snew, **pps;
|
||
|
||
snew = os->bfd_section;
|
||
|
||
/* Shuffle the bfd section list to make the output file look
|
||
neater. This is really only cosmetic. */
|
||
if (place->section == NULL)
|
||
{
|
||
asection *bfd_section = place->os->bfd_section;
|
||
|
||
/* If the output statement hasn't been used to place
|
||
any input sections (and thus doesn't have an output
|
||
bfd_section), look for the closest prior output statement
|
||
having an output section. */
|
||
if (bfd_section == NULL)
|
||
bfd_section = output_prev_sec_find (place->os);
|
||
|
||
if (bfd_section != NULL && bfd_section != snew)
|
||
place->section = &bfd_section->next;
|
||
}
|
||
|
||
if (place->section != NULL)
|
||
{
|
||
/* Unlink the section. */
|
||
for (pps = &output_bfd->sections;
|
||
*pps != snew;
|
||
pps = &(*pps)->next)
|
||
;
|
||
bfd_section_list_remove (output_bfd, pps);
|
||
|
||
/* Now tack it on to the "place->os" section list. */
|
||
bfd_section_list_insert (output_bfd, place->section, snew);
|
||
}
|
||
|
||
/* Save the end of this list. Further ophans of this type will
|
||
follow the one we've just added. */
|
||
place->section = &snew->next;
|
||
|
||
/* The following is non-cosmetic. We try to put the output
|
||
statements in some sort of reasonable order here, because
|
||
they determine the final load addresses of the orphan
|
||
sections. In addition, placing output statements in the
|
||
wrong order may require extra segments. For instance,
|
||
given a typical situation of all read-only sections placed
|
||
in one segment and following that a segment containing all
|
||
the read-write sections, we wouldn't want to place an orphan
|
||
read/write section before or amongst the read-only ones. */
|
||
if (add.head != NULL)
|
||
{
|
||
if (place->stmt == NULL)
|
||
{
|
||
/* Put the new statement list right at the head. */
|
||
*add.tail = place->os->header.next;
|
||
place->os->header.next = add.head;
|
||
}
|
||
else
|
||
{
|
||
/* Put it after the last orphan statement we added. */
|
||
*add.tail = *place->stmt;
|
||
*place->stmt = add.head;
|
||
}
|
||
|
||
/* Fix the global list pointer if we happened to tack our
|
||
new list at the tail. */
|
||
if (*old->tail == add.head)
|
||
old->tail = add.tail;
|
||
|
||
/* Save the end of this list. */
|
||
place->stmt = add.tail;
|
||
}
|
||
}
|
||
}
|
||
|
||
{
|
||
lang_statement_union_type **pl = &os->children.head;
|
||
|
||
if (dollar != NULL)
|
||
{
|
||
boolean found_dollar;
|
||
|
||
/* The section name has a '$'. Sort it with the other '$'
|
||
sections. */
|
||
|
||
found_dollar = false;
|
||
for ( ; *pl != NULL; pl = &(*pl)->header.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, '$') == NULL)
|
||
{
|
||
if (found_dollar)
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
found_dollar = true;
|
||
if (strcmp (secname, lname) < 0)
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (add_child.head != NULL)
|
||
{
|
||
add_child.head->header.next = *pl;
|
||
*pl = add_child.head;
|
||
}
|
||
}
|
||
|
||
free (hold_section_name);
|
||
|
||
return true;
|
||
}
|
||
|
||
static boolean
|
||
gld_${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
|
||
const char * arch ATTRIBUTE_UNUSED;
|
||
search_dirs_type * search;
|
||
lang_input_statement_type * entry;
|
||
{
|
||
const char * filename;
|
||
char * string;
|
||
|
||
if (! entry->is_archive)
|
||
return false;
|
||
|
||
filename = entry->filename;
|
||
|
||
string = (char *) xmalloc (strlen (search->name)
|
||
+ strlen (filename)
|
||
+ sizeof "/lib.a.dll"
|
||
#ifdef DLL_SUPPORT
|
||
+ (pe_dll_search_prefix ? strlen (pe_dll_search_prefix) : 0)
|
||
#endif
|
||
+ 1);
|
||
|
||
/* Try "libfoo.dll.a" first (preferred explicit import library for dll's */
|
||
sprintf (string, "%s/lib%s.dll.a", search->name, filename);
|
||
|
||
if (! ldfile_try_open_bfd (string, entry))
|
||
{
|
||
/* Try "foo.dll.a" next (alternate explicit import library for dll's */
|
||
sprintf (string, "%s/%s.dll.a", search->name, filename);
|
||
if (! ldfile_try_open_bfd (string, entry))
|
||
{
|
||
/*
|
||
Try libfoo.a next. Normally, this would be interpreted as a static
|
||
library, but it *could* be an import library. For backwards compatibility,
|
||
libfoo.a needs to ==precede== libfoo.dll and foo.dll in the search,
|
||
or sometimes errors occur when building legacy packages.
|
||
|
||
Putting libfoo.a here means that in a failure case (i.e. the library
|
||
-lfoo is not found) we will search for libfoo.a twice before
|
||
giving up -- once here, and once when searching for a "static" lib.
|
||
for a "static" lib.
|
||
*/
|
||
/* Try "libfoo.a" (import lib, or static lib, but must
|
||
take precedence over dll's) */
|
||
sprintf (string, "%s/lib%s.a", search->name, filename);
|
||
if (! ldfile_try_open_bfd (string, entry))
|
||
{
|
||
#ifdef DLL_SUPPORT
|
||
if (pe_dll_search_prefix)
|
||
{
|
||
/* Try "<prefix>foo.dll" (preferred dll name, if specified) */
|
||
sprintf (string, "%s/%s%s.dll", search->name, pe_dll_search_prefix, filename);
|
||
if (! ldfile_try_open_bfd (string, entry))
|
||
{
|
||
/* Try "libfoo.dll" (default preferred dll name) */
|
||
sprintf (string, "%s/lib%s.dll", search->name, filename);
|
||
if (! ldfile_try_open_bfd (string, entry))
|
||
{
|
||
/* Finally, try "foo.dll" (alternate dll name) */
|
||
sprintf (string, "%s/%s.dll", search->name, filename);
|
||
if (! ldfile_try_open_bfd (string, entry))
|
||
{
|
||
free (string);
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else /* pe_dll_search_prefix not specified */
|
||
#endif
|
||
{
|
||
/* Try "libfoo.dll" (preferred dll name) */
|
||
sprintf (string, "%s/lib%s.dll", search->name, filename);
|
||
if (! ldfile_try_open_bfd (string, entry))
|
||
{
|
||
/* Finally, try "foo.dll" (alternate dll name) */
|
||
sprintf (string, "%s/%s.dll", search->name, filename);
|
||
if (! ldfile_try_open_bfd (string, entry))
|
||
{
|
||
free (string);
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
entry->filename = string;
|
||
|
||
return true;
|
||
}
|
||
|
||
static int
|
||
gld_${EMULATION_NAME}_find_potential_libraries (name, entry)
|
||
char * name;
|
||
lang_input_statement_type * entry;
|
||
{
|
||
return ldfile_open_file_search (name, entry, "", ".lib");
|
||
}
|
||
|
||
static char *
|
||
gld_${EMULATION_NAME}_get_script(isfile)
|
||
int *isfile;
|
||
EOF
|
||
# Scripts compiled in.
|
||
# sed commands to quote an ld script as a C string.
|
||
sc="-f 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 */
|
||
gld_${EMULATION_NAME}_open_dynamic_archive,
|
||
gld_${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_${EMULATION_NAME}_recognized_file,
|
||
gld_${EMULATION_NAME}_find_potential_libraries,
|
||
NULL /* new_vers_pattern */
|
||
};
|
||
EOF
|