# This shell script emits a C file. -*- C -*-
# It does some substitutions.
-cat >e${EMULATION_NAME}.c <<EOF
+if [ -z "$MACHINE" ]; then
+ OUTPUT_ARCH=${ARCH}
+else
+ OUTPUT_ARCH=${ARCH}:${MACHINE}
+fi
+rm -f e${EMULATION_NAME}.c
+(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
+cat >>e${EMULATION_NAME}.c <<EOF
/* This file is part of GLD, the Gnu Linker.
- Copyright 1995, 96, 97, 1998 Free Software Foundation, Inc.
+ Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "ldgram.h"
#include "ldexp.h"
#include "ldlang.h"
+#include "ldfile.h"
#include "ldemul.h"
#include "ldlex.h"
#include "ldmisc.h"
#include "ldctor.h"
-#include "ldfile.h"
#include "coff/internal.h"
+
+/* FIXME: This is a BFD internal header file, and we should not be
+ using it here. */
#include "../bfd/libcoff.h"
+#include "deffile.h"
+#include "pe-dll.h"
+
+#include <ctype.h>
+
#define TARGET_IS_${EMULATION_NAME}
+/* Permit the emulation parameters to override the default section
+ alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
+ it seem that include/coff/internal.h should not define
+ PE_DEF_SECTION_ALIGNMENT. */
+#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
+#undef PE_DEF_SECTION_ALIGNMENT
+#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
+#endif
+
+#if defined(TARGET_IS_i386pe)
+#define DLL_SUPPORT
+#endif
+#if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe) || defined(TARGET_IS_armpe)
+#define DLL_SUPPORT
+#endif
+
+#if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
+#define PE_DEF_SUBSYSTEM 3
+#else
+#undef NT_EXE_IMAGE_BASE
+#undef PE_DEF_SECTION_ALIGNMENT
+#undef PE_DEF_FILE_ALIGNMENT
+#define NT_EXE_IMAGE_BASE 0x00010000
+#ifdef TARGET_IS_armpe
+#define PE_DEF_SECTION_ALIGNMENT 0x00001000
+#define PE_DEF_SUBSYSTEM 9
+#else
+#define PE_DEF_SECTION_ALIGNMENT 0x00000400
+#define PE_DEF_SUBSYSTEM 2
+#endif
+#define PE_DEF_FILE_ALIGNMENT 0x00000200
+#endif
+
+#ifdef TARGET_IS_arm_epoc_pe
+#define bfd_arm_pe_allocate_interworking_sections \
+ bfd_arm_epoc_pe_allocate_interworking_sections
+#define bfd_arm_pe_get_bfd_for_interworking \
+ bfd_arm_epoc_pe_get_bfd_for_interworking
+#define bfd_arm_pe_process_before_allocation \
+ bfd_arm_epoc_pe_process_before_allocation
+#endif
+
static void gld_${EMULATION_NAME}_set_symbols PARAMS ((void));
static void gld_${EMULATION_NAME}_after_open PARAMS ((void));
static void gld_${EMULATION_NAME}_before_parse PARAMS ((void));
+static void gld_${EMULATION_NAME}_after_parse PARAMS ((void));
static void gld_${EMULATION_NAME}_before_allocation PARAMS ((void));
-static boolean gld${EMULATION_NAME}_place_orphan
+static boolean gld_${EMULATION_NAME}_place_orphan
PARAMS ((lang_input_statement_type *, asection *));
static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *));
static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **));
-
-#if 0 /* argument to qsort so don't prototype */
-static int sort_by_file_name PARAMS ((void *, void *));
-static int sort_by_section_name PARAMS ((void *, void *));
-#endif
-static lang_statement_union_type **sort_sections_1
- PARAMS ((lang_statement_union_type **, lang_statement_union_type *, int,
- int (*)()));
-static void sort_sections PARAMS ((lang_statement_union_type *));
+static void gld_${EMULATION_NAME}_finish PARAMS ((void));
+static boolean gld_${EMULATION_NAME}_open_dynamic_archive
+ PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
static struct internal_extra_pe_aouthdr pe;
static int dll;
+static int support_old_code = 0;
+static char * thumb_entry_symbol = NULL;
+static lang_assignment_statement_type *image_base_statement = 0;
+
+#ifdef DLL_SUPPORT
+static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */
+static char *pe_out_def_filename = NULL;
+static char *pe_implib_filename = NULL;
+static int pe_enable_auto_image_base = 0;
+static char *pe_dll_search_prefix = NULL;
+#endif
extern const char *output_filename;
static void
gld_${EMULATION_NAME}_before_parse()
{
- output_filename = "a.exe";
- ldfile_output_architecture = bfd_arch_${ARCH};
+ const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}");
+ if (arch)
+ {
+ ldfile_output_architecture = arch->arch;
+ ldfile_output_machine = arch->mach;
+ ldfile_output_machine_name = arch->printable_name;
+ }
+ else
+ ldfile_output_architecture = bfd_arch_${ARCH};
+ output_filename = "${EXECUTABLE_NAME:-a.exe}";
+#ifdef DLL_SUPPORT
+ config.dynamic_link = true;
+ config.has_shared = 1;
+/* link_info.pei386_auto_import = true; */
+
+#if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
+#if defined TARGET_IS_mipspe || defined TARGET_IS_armpe
+ lang_add_entry ("WinMainCRTStartup", 1);
+#else
+ lang_add_entry ("_WinMainCRTStartup", 1);
+#endif
+#endif
+#endif
}
\f
/* PE format extra command line options. */
#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
#define OPTION_SUBSYSTEM (OPTION_STACK + 1)
#define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
+#define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
+#define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
+#define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
+#define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
+#define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1)
+#define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
+#define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
+#define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
+#define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
+#define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
+#define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
+#define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
+#define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
+#define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
+#define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
+#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
+#define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
+#define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
+#define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
static struct option longopts[] = {
/* PE options */
- {"base-file", required_argument, NULL, OPTION_BASE_FILE},
- {"dll", no_argument, NULL, OPTION_DLL},
- {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
- {"heap", required_argument, NULL, OPTION_HEAP},
- {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
- {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
- {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
- {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
- {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
- {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
- {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
- {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
- {"stack", required_argument, NULL, OPTION_STACK},
- {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
- {NULL, no_argument, NULL, 0}
- };
+ {"base-file", required_argument, NULL, OPTION_BASE_FILE},
+ {"dll", no_argument, NULL, OPTION_DLL},
+ {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
+ {"heap", required_argument, NULL, OPTION_HEAP},
+ {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
+ {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
+ {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
+ {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
+ {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
+ {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
+ {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
+ {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
+ {"stack", required_argument, NULL, OPTION_STACK},
+ {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
+ {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
+ {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
+#ifdef DLL_SUPPORT
+ /* getopt allows abbreviations, so we do this to stop it from treating -o
+ as an abbreviation for this option */
+ {"output-def", required_argument, NULL, OPTION_OUT_DEF},
+ {"output-def", required_argument, NULL, OPTION_OUT_DEF},
+ {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
+ {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
+ {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
+ {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
+ {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
+ {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
+ {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
+ {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
+ {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
+ {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
+ {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
+ {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
+ {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
+ {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
+ {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
+ {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
+#endif
+ {NULL, no_argument, NULL, 0}
+};
/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
parameters which may be input from the command line */
-typedef struct {
+typedef struct
+{
void *ptr;
int size;
int value;
#define IMAGEBASEOFF 0
D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
#define DLLOFF 1
- {&dll, sizeof(dll), 0, "__dll__"},
+ {&dll, sizeof(dll), 0, "__dll__", 0},
D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
D(MajorOperatingSystemVersion,"__major_os_version__", 4),
D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
D(MajorImageVersion,"__major_image_version__", 1),
D(MinorImageVersion,"__minor_image_version__", 0),
+#ifdef TARGET_IS_armpe
+ D(MajorSubsystemVersion,"__major_subsystem_version__", 2),
+#else
D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
+#endif
D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
- D(Subsystem,"__subsystem__", 3),
- D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
+ D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
+ D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
{ NULL, 0, 0, NULL, 0 }
};
+static void
+gld_${EMULATION_NAME}_list_options (file)
+ FILE * file;
+{
+ fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
+ fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
+ fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
+ fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
+ fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
+ fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
+ fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
+ fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
+ fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
+ fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
+ fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
+ fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
+ fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
+ fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
+ fprintf (file, _(" --support-old-code Support interworking with old code\n"));
+ fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
+#ifdef DLL_SUPPORT
+ fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
+ fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
+ fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
+ fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
+ fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
+ fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
+ fprintf (file, _(" --out-implib <file> Generate import library\n"));
+ fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
+ fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
+ fprintf (file, _(" --compat-implib Create backward compatible import libs;\n"));
+ fprintf (file, _(" create __imp_<SYMBOL> as well.\n"));
+ fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n"));
+ fprintf (file, _(" unless user specifies one\n"));
+ fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
+ fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll witout an\n"));
+ fprintf (file, _(" importlib, use <string><basename>.dll \n"));
+ fprintf (file, _(" in preference to lib<basename>.dll \n"));
+ fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to \n"));
+ fprintf (file, _(" __imp_sym for DATA references\n"));
+ fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
+ fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n"));
+ fprintf (file, _(" or linking to DLLs (esp. auto-import)\n"));
+#endif
+}
static void
set_pe_name (name, val)
}
v[] =
{
- { "native", 1, "_NtProcessStartup" },
- { "windows", 2, "_WinMainCRTStartup" },
- { "console", 3, "_mainCRTStartup" },
+ { "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"},
+ { "posix", 7, "__PosixProcessStartup"},
+ { "wince", 9, "_WinMainCRTStartup" },
{ 0, 0, 0 }
};
set_pe_name ("__minor_subsystem_version__",
strtoul (end + 1, &end, 0));
if (*end != '\0')
- einfo ("%P: warning: bad version number in -subsystem option\n");
+ 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);
- /* If the subsystem is windows, we use a different entry
- point. We also register the entry point as an undefined
- symbol. The reason we do this is so that the user
- doesn't have to because they would have to use the -u
- switch if they were specifying an entry point other than
- _mainCRTStartup. Specifically, if creating a windows
- application, entry point _WinMainCRTStartup must be
- specified. What I have found for non console
- applications (entry not _mainCRTStartup) is that the .obj
- that contains mainCRTStartup is brought in since 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, adding -u with the entry point
- name specified forces the correct .obj to be used. We
- can avoid making the user do this by always adding the
- entry point name as an undefined symbol. */
- lang_add_entry (v[i].entry, 1);
- ldlang_add_undef (v[i].entry);
+ 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, 1);
return;
}
}
- einfo ("%P%F: invalid subsystem type %s\n", optarg);
+
+ einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
}
{
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);
- }
+ einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
optarg = end;
}
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);
- }
+ einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
}
link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
if (link_info.base_file == NULL)
{
- fprintf (stderr, "%s: Can't open base file %s\n",
+ /* xgettext:c-format */
+ fprintf (stderr, _("%s: Can't open base file %s\n"),
program_name, optarg);
xexit (1);
}
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);
+ 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 = true;
+ break;
+ case OPTION_DLL_DISABLE_AUTO_IMPORT:
+ link_info.pei386_auto_import = false;
+ break;
+ case OPTION_ENABLE_EXTRA_PE_DEBUG:
+ pe_dll_extra_pe_debug = 1;
+ break;
+#endif
}
return 1;
}
\f
+
+#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()
+gld_${EMULATION_NAME}_set_symbols ()
{
/* Run through and invent symbols for all the
names and insert the defaults. */
{
if (link_info.relocateable)
init[IMAGEBASEOFF].value = 0;
- else if (init[DLLOFF].value)
+ else if (init[DLLOFF].value || link_info.shared)
+#ifdef DLL_SUPPORT
+ init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ?
+ compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
+#else
init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
+#endif
else
init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
}
for (j = 0; init[j].ptr; j++)
{
long val = init[j].value;
- lang_add_assignment (exp_assop ('=' ,init[j].symbol, exp_intop (val)));
+ lang_assignment_statement_type *rv;
+ rv = lang_add_assignment (exp_assop ('=' ,init[j].symbol, exp_intop (val)));
if (init[j].size == sizeof(short))
*(short *)init[j].ptr = val;
else if (init[j].size == sizeof(int))
else if (init[j].size == sizeof(bfd_vma))
*(bfd_vma *)init[j].ptr = val;
else abort();
+ if (j == IMAGEBASEOFF)
+ image_base_statement = rv;
}
/* Restore the pointer. */
stat_ptr = save;
if (pe.FileAlignment >
pe.SectionAlignment)
{
- einfo ("%P: warning, file alignment > section alignment.\n");
+ einfo (_("%P: warning, file alignment > section alignment.\n"));
}
}
+/* This is called after the linker script and the command line options
+ have been read. */
+
static void
-gld_${EMULATION_NAME}_after_open()
+gld_${EMULATION_NAME}_after_parse ()
{
- /* 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)
+ /* 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 != NULL)
+ ldlang_add_undef (entry_symbol);
+}
+
+#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] == '@')
{
- einfo ("%F%P: PE operations on non PE file.\n");
+ pe_undef_found_sym = h;
+ return false;
}
+ return true;
+}
- pe_data(output_bfd)->pe_opthdr = pe;
- pe_data(output_bfd)->dll = init[DLLOFF].value;
-
+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"));
+ }
+ }
+ }
+ }
+ }
}
-\f
-/* Callback functions for qsort in sort_sections. */
static int
-sort_by_file_name (a, b)
- void *a;
- void *b;
+make_import_fixup (rel)
+ arelent *rel;
{
- lang_statement_union_type **ra = a;
- lang_statement_union_type **rb = b;
- int i;
+ struct symbol_cache_entry *sym = *rel->sym_ptr_ptr;
+/*
+ bfd *b;
+*/
+
+ if (pe_dll_extra_pe_debug)
+ {
+ printf ("arelent: %s@%#x: add=%li\n", sym->name,
+ (int) rel->address, rel->addend);
+ }
+ pe_create_import_fixup (rel);
+ return 1;
+}
- i = strcmp ((*ra)->input_section.ifile->the_bfd->my_archive->filename,
- (*rb)->input_section.ifile->the_bfd->my_archive->filename);
- if (i != 0)
- return i;
+char *pe_data_import_dll;
- return strcmp ((*ra)->input_section.ifile->filename,
- (*rb)->input_section.ifile->filename);
+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)
+ {
+ einfo (_("Warning: 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 int
-sort_by_section_name (a, b)
- void *a;
- void *b;
+static boolean
+pr_sym (h, string)
+ struct bfd_hash_entry *h;
+ PTR string;
{
- lang_statement_union_type **ra = a;
- lang_statement_union_type **rb = b;
- return strcmp ((*ra)->input_section.section->name,
- (*rb)->input_section.section->name);
+ if (pe_dll_extra_pe_debug)
+ {
+ printf("+%s\n",h->string);
+ }
+ return true;
}
-/* Subroutine of sort_sections to a contiguous subset of a list of sections.
- NEXT_AFTER is the element after the last one to sort.
- The result is a pointer to the last element's "next" pointer. */
-static lang_statement_union_type **
-sort_sections_1 (startptr, next_after, count, sort_func)
- lang_statement_union_type **startptr,*next_after;
- int count;
- int (*sort_func) ();
+static void
+gld_${EMULATION_NAME}_after_open ()
{
- lang_statement_union_type **vec;
- lang_statement_union_type *p;
- int i;
- lang_statement_union_type **ret;
- if (count == 0)
- return startptr;
-
- vec = ((lang_statement_union_type **)
- xmalloc (count * sizeof (lang_statement_union_type *)));
+ 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 == NULL)
+ einfo (_("%F%P: PE operations on non PE file.\n"));
- for (p = *startptr, i = 0; i < count; i++, p = p->next)
- vec[i] = p;
+ pe_data (output_bfd)->pe_opthdr = pe;
+ pe_data (output_bfd)->dll = init[DLLOFF].value;
- qsort (vec, count, sizeof (vec[0]), sort_func);
+#ifdef DLL_SUPPORT
+ if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
+ pe_fixup_stdcalls ();
- /* Fill in the next pointers again. */
- *startptr = vec[0];
- for (i = 0; i < count - 1; i++)
- vec[i]->header.next = vec[i + 1];
- vec[i]->header.next = next_after;
- ret = &vec[i]->header.next;
- free (vec);
- return ret;
-}
+ pe_find_data_imports (output_bfd, &link_info);
-/* Sort the .idata\$foo input sections of archives into filename order.
- The reason is so dlltool can arrange to have the pe dll import information
- generated correctly - the head of the list goes into dh.o, the tail into
- dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the
- .idata section.
- FIXME: This may no longer be necessary with grouped sections. Instead of
- sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
- .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
- This would have to be elaborated upon to handle multiple dll's
- [assuming such an eloboration is possible of course].
+ pe_process_import_defs(output_bfd, &link_info);
+ if (link_info.shared)
+ pe_dll_build_sections (output_bfd, &link_info);
- We also sort sections in '\$' wild statements. These are created by the
- place_orphans routine to implement grouped sections. */
+#ifndef TARGET_IS_i386pe
+#ifndef TARGET_IS_armpe
+ else
+ pe_exe_build_sections (output_bfd, &link_info);
+#endif
+#endif
+#endif
-static void
-sort_sections (s)
- lang_statement_union_type *s;
-{
- for (; s ; s = s->next)
- switch (s->header.type)
+#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)
{
- case lang_output_section_statement_enum:
- sort_sections (s->output_section_statement.children.head);
- break;
- case lang_wild_statement_enum:
- {
- lang_statement_union_type **p = &s->wild_statement.children.head;
+ if (bfd_arm_pe_get_bfd_for_interworking (is->the_bfd, & link_info))
+ break;
+ }
+ }
+#endif
- /* Is this the .idata section? */
- if (s->wild_statement.section_name != NULL
- && strncmp (s->wild_statement.section_name, ".idata", 6) == 0)
- {
- /* Sort the children. We want to sort any objects in
- the same archive. In order to handle the case of
- including a single archive multiple times, we sort
- all the children by archive name and then by object
- name. After sorting them, we re-thread the pointer
- chain. */
-
- while (*p)
- {
- lang_statement_union_type *start = *p;
- if (start->header.type != lang_input_section_enum
- || !start->input_section.ifile->the_bfd->my_archive)
- p = &(start->header.next);
- else
- {
- lang_statement_union_type *end;
- int count;
-
- for (end = start, count = 0;
- end && end->header.type == lang_input_section_enum;
- end = end->next)
- count++;
-
- p = sort_sections_1 (p, end, count, sort_by_file_name);
- }
- }
- break;
- }
+ {
+ /* 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. */
- /* If this is a collection of grouped sections, sort them.
- The linker script must explicitly mention "*(.foo\$)" or
- "*(.foo\$*)". Don't sort them if \$ is not the last
- character (not sure if this is really useful, but it
- allows explicitly mentioning some \$ sections and letting
- the linker handle the rest). */
- if (s->wild_statement.section_name != NULL)
- {
- char *q = strchr (s->wild_statement.section_name, '\$');
+ 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. */
+ }
+ }
+ }
+ }
+ }
- if (q != NULL
- && (q[1] == '\0'
- || (q[1] == '*' && q[2] == '\0')))
- {
- lang_statement_union_type *end;
- int count;
-
- for (end = *p, count = 0; end; end = end->next)
- {
- if (end->header.type != lang_input_section_enum)
- abort ();
- count++;
- }
- (void) sort_sections_1 (p, end, count, sort_by_section_name);
- }
- break;
- }
- }
- break;
- default:
- break;
+ {
+ 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;
+ }
+ }
}
+ }
}
-
+\f
static void
gld_${EMULATION_NAME}_before_allocation()
{
- extern lang_statement_list_type *stat_ptr;
-
#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))
+ if (!ppc_process_before_allocation (is->the_bfd, &link_info))
{
- einfo("Errors encountered processing file %s\n", is->filename);
+ /* 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);
-#else
- /* 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 */
+#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 (!arm_process_before_allocation (is->the_bfd, & link_info))
+ if (! bfd_arm_pe_process_before_allocation
+ (is->the_bfd, & link_info, support_old_code))
{
- einfo ("Errors encountered processing file %s", is->filename);
+ /* xgettext:c-format */
+ einfo (_("Errors encountered processing file %s for interworking"),
+ is->filename);
}
}
}
/* We have seen it all. Allocate it, and carry on */
- arm_allocate_interworking_sections (& link_info);
+ bfd_arm_pe_allocate_interworking_sections (& link_info);
+#endif /* TARGET_IS_armpe */
+}
+\f
+#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;
+
+}
- sort_sections (stat_ptr->head);
+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 != NULL && entry_from_cmdline)
+ einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
+ thumb_entry_symbol, entry_symbol);
+ entry_symbol = 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;
+ }
+ }
+}
+
\f
-/* Place an orphan section. We use this to put sections with a '\$' in them
- into the right place. Any section with a '\$' in them (e.g. .text\$foo)
- gets mapped to the output section with everything from the '\$' on stripped
- (e.g. .text).
- See the Microsoft Portable Executable and Common Object File Format
- Specification 4.1, section 4.2, Grouped Sections.
+/* 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.
- FIXME: This is now handled by the linker script using wildcards,
- but I'm leaving this here in case we want to enable it for sections
- which are not mentioned in the linker script. */
+ 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)
+gld_${EMULATION_NAME}_place_orphan (file, s)
lang_input_statement_type *file;
asection *s;
{
const char *secname;
- char *output_secname, *ps;
+ char *hold_section_name;
+ char *dollar = NULL;
+ const char *ps = NULL;
lang_output_section_statement_type *os;
- lang_statement_union_type *l;
+ lang_statement_list_type add_child;
- if ((s->flags & SEC_ALLOC) == 0)
- return false;
+ secname = bfd_get_section_name (s->owner, s);
- /* Don't process grouped sections unless doing a final link.
- If they're marked as COMDAT sections, we don't want .text\$foo to
- end up in .text and then have .text disappear because it's marked
- link-once-discard. */
- if (link_info.relocateable)
- return false;
+ /* Look through the script to see where to place this section. */
- secname = bfd_get_section_name (s->owner, s);
+ hold_section_name = xstrdup (secname);
+ if (!link_info.relocateable)
+ {
+ dollar = strchr (hold_section_name, '$');
+ if (dollar != NULL)
+ *dollar = '\0';
+ }
- /* Everything from the '\$' on gets deleted so don't allow '\$' as the
- first character. */
- if (*secname == '\$')
- einfo ("%P%F: section %s has '\$' as first character\n", secname);
- if (strchr (secname + 1, '\$') == NULL)
- return false;
+ os = lang_output_section_find (hold_section_name);
+
+ lang_list_init (&add_child);
- /* Look up the output section. The Microsoft specs say sections names in
- image files never contain a '\$'. Fortunately, lang_..._lookup creates
- the section if it doesn't exist. */
- output_secname = buystring (secname);
- ps = strchr (output_secname + 1, '\$');
- *ps = 0;
- os = lang_output_section_statement_lookup (output_secname);
-
- /* Find the '\$' wild statement for this section. We currently require the
- linker script to explicitly mention "*(.foo\$)".
- FIXME: ppcpe.sc has .CRT\$foo in the .rdata section. According to the
- Microsoft docs this isn't correct so it's not (currently) handled. */
-
- ps[0] = '\$';
- ps[1] = 0;
- for (l = os->children.head; l; l = l->next)
+ if (os != NULL
+ && os->bfd_section != NULL
+ && ((s->flags ^ os->bfd_section->flags) & (SEC_LOAD | SEC_ALLOC)) == 0)
{
- if (l->header.type == lang_wild_statement_enum
- && strcmp (l->wild_statement.section_name, output_secname) == 0)
- break;
+ lang_add_section (&add_child, s, os, file);
}
- ps[0] = 0;
- if (l == NULL)
-#if 1
- einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname);
-#else /* FIXME: This block is untried. It exists to convey the intent,
- should one decide to not require *(.foo\$) to appear in the linker
- script. */
+ else
{
- lang_wild_statement_type *new = new_stat (lang_wild_statement,
- &os->children);
- new->section_name = xmalloc (strlen (output_secname) + 2);
- sprintf (new->section_name, "%s\$", output_secname);
- new->filename = NULL;
- lang_list_init (&new->children);
- l = new;
+ 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 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;
+ }
+
+ /* 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, "*default*");
+
+ 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)
+ {
+ asection *snew, **pps;
+
+ snew = os->bfd_section;
+ if (place->os->bfd_section != NULL || place->section != NULL)
+ {
+ /* Shuffle the section to make the output file look neater. */
+ if (place->section == NULL)
+ {
+#if 0
+ /* Finding the end of the list is a little tricky. We
+ make a wild stab at it by comparing section flags. */
+ flagword first_flags = place->os->bfd_section->flags;
+ for (pps = &place->os->bfd_section->next;
+ *pps != NULL && (*pps)->flags == first_flags;
+ pps = &(*pps)->next)
+ ;
+ place->section = pps;
+#else
+ /* Put orphans after the first section on the list. */
+ place->section = &place->os->bfd_section->next;
+#endif
+ }
+
+ /* Unlink the section. */
+ for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
+ ;
+ *pps = snew->next;
+
+ /* Now tack it on to the "place->os" section list. */
+ snew->next = *place->section;
+ *place->section = snew;
+ }
+ place->section = &snew->next; /* Save the end of this list. */
+
+ 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;
+ }
+ place->stmt = add.tail; /* Save the end of this list. */
+ }
}
+
+ {
+ 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)->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, '$') == NULL)
+ {
+ if (found_dollar)
+ break;
+ }
+ else
+ {
+ found_dollar = true;
+ if (strcmp (secname, lname) < 0)
+ break;
+ }
+ }
+ }
+
+ if (add_child.head != NULL)
+ {
+ add_child.head->next = *pl;
+ *pl = add_child.head;
+ }
+ }
+
+ free (hold_section_name);
+
+ return true;
+}
+
+static boolean
+gld_${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;
+ }
+ }
+ }
+ }
+ }
+ }
- /* Link the input section in and we're done for now.
- The sections still have to be sorted, but that has to wait until
- all such sections have been processed by us. The sorting is done by
- sort_sections. */
- wild_doit (&l->wild_statement.children, s, os, file);
+ entry->filename = string;
return true;
}
+
+static int
+gld_${EMULATION_NAME}_find_potential_libraries (name, entry)
+ char * name;
+ lang_input_statement_type * entry;
+{
+ return ldfile_open_file_search (name, entry, "", ".lib");
+}
\f
static char *
gld_${EMULATION_NAME}_get_script(isfile)
EOF
# Scripts compiled in.
# sed commands to quote an ld script as a C string.
-sc="-f ${srcdir}/emultempl/stringify.sed"
+sc="-f stringify.sed"
cat >>e${EMULATION_NAME}.c <<EOF
{
gld_${EMULATION_NAME}_before_parse,
syslib_default,
hll_default,
- after_parse_default,
+ gld_${EMULATION_NAME}_after_parse,
gld_${EMULATION_NAME}_after_open,
after_allocation_default,
set_output_arch_default,
gld_${EMULATION_NAME}_get_script,
"${EMULATION_NAME}",
"${OUTPUT_FORMAT}",
- NULL, /* finish */
+ gld_${EMULATION_NAME}_finish, /* finish */
NULL, /* create output section statements */
- NULL, /* open dynamic archive */
- gld${EMULATION_NAME}_place_orphan,
+ gld_${EMULATION_NAME}_open_dynamic_archive,
+ gld_${EMULATION_NAME}_place_orphan,
gld_${EMULATION_NAME}_set_symbols,
- gld_${EMULATION_NAME}_parse_args
+ 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
};
EOF
projects / deliverable / binutils-gdb.git / blobdiff