X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=ld%2Femultempl%2Fpe.em;h=33ac71e5460169654846bb761784edb5dd4f9162;hb=5fa222e4424d1e940baaff61d73b704588ff970e;hp=a52d4912d8bcbdf10404ef280b256c95dcc8f9ae;hpb=690a460e0c31c2c07ceb3af013d139e5d5e54fc0;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/emultempl/pe.em b/ld/emultempl/pe.em index a52d4912d8..33ac71e546 100644 --- a/ld/emultempl/pe.em +++ b/ld/emultempl/pe.em @@ -1,32 +1,51 @@ # This shell script emits a C file. -*- C -*- # It does some substitutions. +test -z "${ENTRY}" && ENTRY="_mainCRTStartup" +if [ -z "$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 < #include "ldlex.h" #include "ldmisc.h" #include "ldctor.h" -#include "ldfile.h" #include "coff/internal.h" +/* FIXME: See bfd/peXXigen.c for why we include an architecture specific + header in generic PE code. */ +#include "coff/i386.h" +#include "coff/pe.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" - -#define TARGET_IS_${EMULATION_NAME} +#include "safe-ctype.h" /* Permit the emulation parameters to override the default section alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes @@ -86,63 +109,50 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define PE_DEF_FILE_ALIGNMENT 0x00000200 #endif -#ifdef TARGET_IS_arm_epoc_pe -#define bfd_arm_pe_allocate_interworking_sections \ - bfd_arm_epoc_pe_allocate_interworking_sections -#define bfd_arm_pe_get_bfd_for_interworking \ - bfd_arm_epoc_pe_get_bfd_for_interworking -#define bfd_arm_pe_process_before_allocation \ - bfd_arm_epoc_pe_process_before_allocation -#endif - -static void gld_${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_${EMULATION_NAME}_place_orphan - PARAMS ((lang_input_statement_type *, asection *)); -static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *)); -static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **)); -static void gld_${EMULATION_NAME}_finish PARAMS ((void)); -static boolean gld_${EMULATION_NAME}_open_dynamic_archive - PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *)); static struct internal_extra_pe_aouthdr pe; static int dll; +static flagword real_flags = 0; static int support_old_code = 0; static char * thumb_entry_symbol = NULL; static lang_assignment_statement_type *image_base_statement = 0; -static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */ #ifdef DLL_SUPPORT +static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */ static char *pe_out_def_filename = NULL; static char *pe_implib_filename = NULL; +static int pe_enable_auto_image_base = 0; +static char *pe_dll_search_prefix = NULL; #endif extern const char *output_filename; static void -gld_${EMULATION_NAME}_before_parse() +gld_${EMULATION_NAME}_before_parse (void) { + ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); output_filename = "${EXECUTABLE_NAME:-a.exe}"; - ldfile_output_architecture = bfd_arch_${ARCH}; #ifdef DLL_SUPPORT + config.dynamic_link = TRUE; config.has_shared = 1; + link_info.pei386_auto_import = -1; + link_info.pei386_runtime_pseudo_reloc = -1; #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2) #if defined TARGET_IS_mipspe || defined TARGET_IS_armpe - lang_add_entry ("WinMainCRTStartup", 1); + lang_default_entry ("WinMainCRTStartup"); #else - lang_add_entry ("_WinMainCRTStartup", 1); + lang_default_entry ("_WinMainCRTStartup"); #endif +#else + lang_default_entry ("${ENTRY}"); #endif #endif } /* PE format extra command line options. */ -/* Used for setting flags in the PE header. */ +/* Used for setting flags in the PE header. */ #define OPTION_BASE_FILE (300 + 1) #define OPTION_DLL (OPTION_BASE_FILE + 1) #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1) @@ -154,8 +164,8 @@ gld_${EMULATION_NAME}_before_parse() #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1) #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1) #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1) -#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1) -#define OPTION_SUBSYSTEM (OPTION_STACK + 1) +#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1) +#define OPTION_SUBSYSTEM (OPTION_STACK + 1) #define OPTION_HEAP (OPTION_SUBSYSTEM + 1) #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1) #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1) @@ -169,47 +179,84 @@ gld_${EMULATION_NAME}_before_parse() #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) +#define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1) +#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \ + (OPTION_EXCLUDE_LIBS + 1) +#define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \ + (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1) +#define OPTION_LARGE_ADDRESS_AWARE \ + (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1) -static struct option longopts[] = +static void +gld${EMULATION_NAME}_add_options + (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl, + struct option **longopts, int nrl ATTRIBUTE_UNUSED, + struct option **really_longopts ATTRIBUTE_UNUSED) { - /* 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}, - {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE}, - {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, + static const struct option xtra_long[] = { + /* 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}, + {"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}, + /* 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}, + {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, + {"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}, + /* getopt() allows abbreviations, so we do this to stop it from + treating -c as an abbreviation for these --compat-implib. */ + {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, + {"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}, + {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC}, + {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC}, #endif - {NULL, no_argument, NULL, 0} -}; + {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE}, + {NULL, no_argument, NULL, 0} + }; + *longopts = (struct option *) + xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); + memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); +} /* PE/WIN32; added routines to get the subsystem type, heap and/or stack - parameters which may be input from the command line */ + parameters which may be input from the command line. */ typedef struct { @@ -236,13 +283,13 @@ static definfo init[] = D(MajorImageVersion,"__major_image_version__", 1), D(MinorImageVersion,"__minor_image_version__", 0), #ifdef TARGET_IS_armpe - D(MajorSubsystemVersion,"__major_subsystem_version__", 2), + D(MajorSubsystemVersion,"__major_subsystem_version__", 3), #else D(MajorSubsystemVersion,"__major_subsystem_version__", 4), #endif D(MinorSubsystemVersion,"__minor_subsystem_version__", 0), D(Subsystem,"__subsystem__", ${SUBSYSTEM}), - D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000), + D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000), D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000), D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000), D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000), @@ -250,9 +297,9 @@ static definfo init[] = { NULL, 0, 0, NULL, 0 } }; + static void -gld_${EMULATION_NAME}_list_options (file) - FILE * file; +gld_${EMULATION_NAME}_list_options (FILE *file) { fprintf (file, _(" --base_file Generate a base file for relocatable DLLs\n")); fprintf (file, _(" --dll Set image base to the default for DLLs\n")); @@ -275,23 +322,42 @@ gld_${EMULATION_NAME}_list_options (file) 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, _(" --exclude-libs lib,lib,... Exclude libraries 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 Generate import library\n")); fprintf (file, _(" --output-def 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_ as well.\n")); + fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\ + create __imp_ as well.\n")); + fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\ + unless user specifies one\n")); + fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n")); + fprintf (file, _(" --dll-search-prefix= When linking dynamically to a dll without\n\ + an importlib, use .dll\n\ + in preference to lib.dll \n")); + fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\ + __imp_sym for DATA references\n")); + fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n")); + fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\ + adding pseudo-relocations resolved at\n\ + runtime.\n")); + fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\ + auto-imported DATA.\n")); + fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\ + or linking to DLLs (esp. auto-import)\n")); #endif + fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\ + greater than 2 gigabytes\n")); } + static void -set_pe_name (name, val) - char *name; - long val; +set_pe_name (char *name, long val) { int i; - /* Find the name and set it. */ + + /* Find the name and set it. */ for (i = 0; init[i].ptr; i++) { if (strcmp (name, init[i].symbol) == 0) @@ -301,17 +367,22 @@ set_pe_name (name, val) return; } } - abort(); + abort (); } static void -set_pe_subsystem () +set_pe_subsystem (void) { const char *sver; + const char *entry; + const char *initial_symbol_char; + char *end; int len; int i; - static const struct + int subsystem; + unsigned long temp_subsystem; + static const struct { const char *name; const int value; @@ -319,29 +390,23 @@ set_pe_subsystem () } v[] = { - { "native", 1, "NtProcessStartup" }, -#if defined TARGET_IS_mipspe || defined TARGET_IS_armpe + { "native", 1, "NtProcessStartup" }, { "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 } + { "posix", 7, "__PosixProcessStartup"}, + { "wince", 9, "_WinMainCRTStartup" }, + { "xbox", 14, "mainCRTStartup" }, + { NULL, 0, NULL } }; + /* Entry point name for arbitrary subsystem numbers. */ + static const char default_entry[] = "mainCRTStartup"; + /* Check for the presence of a version number. */ 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)); @@ -352,66 +417,84 @@ set_pe_subsystem () einfo (_("%P: warning: bad version number in -subsystem option\n")); } - for (i = 0; v[i].name; i++) + /* Check for numeric subsystem. */ + temp_subsystem = strtoul (optarg, & end, 0); + if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536)) { - 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); + /* Search list for a numeric match to use its entry point. */ + for (i = 0; v[i].name; i++) + if (v[i].value == (int) temp_subsystem) + break; - 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; - } + /* If no match, use the default. */ + if (v[i].name != NULL) + entry = v[i].entry; + else + entry = default_entry; - lang_add_entry (entry, 1); + /* Use this subsystem. */ + subsystem = (int) temp_subsystem; + } + else + { + /* Search for subsystem by name. */ + for (i = 0; v[i].name; i++) + if (strncmp (optarg, v[i].name, len) == 0 + && v[i].name[len] == '\0') + break; + if (v[i].name == NULL) + { + einfo (_("%P%F: invalid subsystem type %s\n"), optarg); return; } + + entry = v[i].entry; + subsystem = v[i].value; + } + + set_pe_name ("__subsystem__", subsystem); + + initial_symbol_char = ${INITIAL_SYMBOL_CHAR}; + if (*initial_symbol_char != '\0') + { + char *alc_entry; + + /* lang_default_entry expects its argument to be permanently + allocated, so we don't free this string. */ + alc_entry = xmalloc (strlen (initial_symbol_char) + + strlen (entry) + + 1); + strcpy (alc_entry, initial_symbol_char); + strcat (alc_entry, entry); + entry = alc_entry; } - - einfo (_("%P%F: invalid subsystem type %s\n"), optarg); -} + lang_default_entry (entry); + + return; +} static void -set_pe_value (name) - char *name; - +set_pe_value (char *name) { char *end; - + set_pe_name (name, strtoul (optarg, &end, 0)); - + if (end == optarg) einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg); optarg = end; } + static void -set_pe_stack_heap (resname, comname) - char *resname; - char *comname; +set_pe_stack_heap (char *resname, char *comname) { set_pe_value (resname); - + if (*optarg == ',') { optarg++; @@ -422,38 +505,16 @@ set_pe_stack_heap (resname, comname) } - -static int -gld_${EMULATION_NAME}_parse_args(argc, argv) - int argc; - char **argv; +static bfd_boolean +gld${EMULATION_NAME}_handle_option (int optc) { - int longind; - int optc; - int prevoptind = optind; - int prevopterr = opterr; - int wanterror; - static int lastoptind = -1; - - if (lastoptind != optind) - opterr = 0; - wanterror = opterr; - - lastoptind = optind; - - optc = getopt_long_only (argc, argv, "-", longopts, &longind); - opterr = prevopterr; - switch (optc) { default: - if (wanterror) - xexit (1); - optind = prevoptind; - return 0; + return FALSE; case OPTION_BASE_FILE: - link_info.base_file = (PTR) fopen (optarg, FOPEN_WB); + link_info.base_file = fopen (optarg, FOPEN_WB); if (link_info.base_file == NULL) { /* xgettext:c-format */ @@ -463,11 +524,11 @@ gld_${EMULATION_NAME}_parse_args(argc, argv) } break; - /* PE options */ - case OPTION_HEAP: + /* PE options. */ + case OPTION_HEAP: set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); break; - case OPTION_STACK: + case OPTION_STACK: set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); break; case OPTION_SUBSYSTEM: @@ -517,7 +578,10 @@ gld_${EMULATION_NAME}_parse_args(argc, argv) pe_dll_export_everything = 1; break; case OPTION_EXCLUDE_SYMBOLS: - pe_dll_add_excludes (optarg); + pe_dll_add_excludes (optarg, 0); + break; + case OPTION_EXCLUDE_LIBS: + pe_dll_add_excludes (optarg, 1); break; case OPTION_KILL_ATS: pe_dll_kill_ats = 1; @@ -540,37 +604,107 @@ gld_${EMULATION_NAME}_parse_args(argc, argv) 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_DLL_ENABLE_RUNTIME_PSEUDO_RELOC: + link_info.pei386_runtime_pseudo_reloc = 1; + break; + case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC: + link_info.pei386_runtime_pseudo_reloc = 0; + break; + case OPTION_ENABLE_EXTRA_PE_DEBUG: + pe_dll_extra_pe_debug = 1; + break; #endif + case OPTION_LARGE_ADDRESS_AWARE: + real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; + break; } - return 1; + return TRUE; } + +#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 0x61300000 + ((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 (void) { /* Run through and invent symbols for all the - names and insert the defaults. */ + names and insert the defaults. */ int j; lang_statement_list_type *save; if (!init[IMAGEBASEOFF].inited) { - if (link_info.relocateable) + if (link_info.relocatable) init[IMAGEBASEOFF].value = 0; - else if (init[DLLOFF].value || link_info.shared) + else if (init[DLLOFF].value || (link_info.shared && !link_info.pie)) +#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) + /* Don't do any symbol assignments if this is a relocatable link. */ + if (link_info.relocatable) return; - /* Glue the assignments into the abs section */ + /* Glue the assignments into the abs section. */ save = stat_ptr; stat_ptr = &(abs_output_section->children); @@ -579,23 +713,24 @@ gld_${EMULATION_NAME}_set_symbols () { long val = init[j].value; lang_assignment_statement_type *rv; - rv = lang_add_assignment (exp_assop ('=' ,init[j].symbol, exp_intop (val))); - if (init[j].size == sizeof(short)) - *(short *)init[j].ptr = val; - else if (init[j].size == sizeof(int)) - *(int *)init[j].ptr = val; - else if (init[j].size == sizeof(long)) - *(long *)init[j].ptr = val; + rv = lang_add_assignment (exp_assop ('=', init[j].symbol, + exp_intop (val))); + if (init[j].size == sizeof (short)) + *(short *) init[j].ptr = val; + else if (init[j].size == sizeof (int)) + *(int *) init[j].ptr = val; + else if (init[j].size == sizeof (long)) + *(long *) init[j].ptr = val; /* This might be a long long or other special type. */ - else if (init[j].size == sizeof(bfd_vma)) - *(bfd_vma *)init[j].ptr = val; - else abort(); + else if (init[j].size == sizeof (bfd_vma)) + *(bfd_vma *) init[j].ptr = val; + else abort (); if (j == IMAGEBASEOFF) image_base_statement = rv; } - /* Restore the pointer. */ + /* Restore the pointer. */ stat_ptr = save; - + if (pe.FileAlignment > pe.SectionAlignment) { @@ -607,7 +742,7 @@ gld_${EMULATION_NAME}_set_symbols () have been read. */ static void -gld_${EMULATION_NAME}_after_parse () +gld_${EMULATION_NAME}_after_parse (void) { /* The Windows libraries are designed for the linker to treat the entry point as an undefined symbol. Otherwise, the .obj that @@ -622,114 +757,251 @@ gld_${EMULATION_NAME}_after_parse () opened, so registering the symbol as undefined will make a difference. */ - if (! link_info.relocateable && entry_symbol != NULL) - ldlang_add_undef (entry_symbol); + if (! link_info.relocatable && 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; +static bfd_boolean +pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf) { - int sl = strlen (string); + int sl; + char *string = inf; + + sl = strlen (string); if (h->type == bfd_link_hash_defined && strncmp (h->root.string, string, sl) == 0 && h->root.string[sl] == '@') - { - pe_undef_found_sym = h; - return false; - } - return true; + { + pe_undef_found_sym = h; + return FALSE; + } + return TRUE; } -#ifdef DLL_SUPPORT static void -pe_fixup_stdcalls () +pe_fixup_stdcalls (void) { static int gave_warning_message = 0; struct bfd_link_hash_entry *undef, *sym; - char *at; - for (undef = link_info.hash->undefs; undef; undef=undef->next) + + if (pe_dll_extra_pe_debug) + printf ("%s\n", __FUNCTION__); + + for (undef = link_info.hash->undefs; undef; undef=undef->u.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")); - } - } - } + char* at = strchr (undef->root.string, '@'); + int lead_at = (*undef->root.string == '@'); + /* For now, don't try to fixup fastcall symbols. */ + + if (at && !lead_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 /* + lead_at */); + 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, + (char *) 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")); + } + } + } + } } - 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) +} + +static int +make_import_fixup (arelent *rel, asection *s) +{ + struct bfd_symbol *sym = *rel->sym_ptr_ptr; + char addend[4]; + + if (pe_dll_extra_pe_debug) + printf ("arelent: %s@%#lx: add=%li\n", sym->name, + (long) rel->address, (long) rel->addend); + + 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); + + pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend)); + + return 1; +} + +static void +pe_find_data_imports (void) +{ + struct bfd_link_hash_entry *undef, *sym; + + if (link_info.pei386_auto_import == 0) + return; + + for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) + { + if (undef->type == bfd_link_hash_undefined) { - 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) + /* 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\n"), - undef->root.string, sym->root.string); - if (! gave_warning_message) + bfd *b = sym->u.def.section->owner; + asymbol **symbols; + int nsyms, symsize, i; + + if (link_info.pei386_auto_import == -1) + info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"), + undef->root.string, buf); + + symsize = bfd_get_symtab_upper_bound (b); + symbols = (asymbol **) xmalloc (symsize); + nsyms = bfd_canonicalize_symtab (b, symbols); + + for (i = 0; i < nsyms; i++) { - gave_warning_message = 1; - einfo(_("Use --enable-stdcall-fixup to disable these warnings\n")); - einfo(_("Use --disable-stdcall-fixup to disable these fixups\n")); + 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; } } - } } } + +static bfd_boolean +pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED) +{ + if (pe_dll_extra_pe_debug) + printf ("+%s\n", h->string); + + return TRUE; +} #endif /* DLL_SUPPORT */ + static void -gld_${EMULATION_NAME}_after_open () +gld_${EMULATION_NAME}_after_open (void) { +#ifdef DLL_SUPPORT + if (pe_dll_extra_pe_debug) + { + bfd *a; + struct bfd_link_hash_entry *sym; + + printf ("%s()\n", __FUNCTION__); + + for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next) + printf ("-%s\n", sym->root.string); + bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL); + + for (a = link_info.input_bfds; a; a = a->link_next) + printf ("*%s\n",a->filename); + } +#endif + /* Pass the wacky PE command line options into the output bfd. FIXME: This should be done via a function, rather than by including an internal BFD header. */ - - if (!coff_data (output_bfd)->pe) + + if (coff_data (output_bfd) == NULL || coff_data (output_bfd)->pe == 0) einfo (_("%F%P: PE operations on non PE file.\n")); pe_data (output_bfd)->pe_opthdr = pe; pe_data (output_bfd)->dll = init[DLLOFF].value; + pe_data (output_bfd)->real_flags |= real_flags; #ifdef DLL_SUPPORT if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */ pe_fixup_stdcalls (); - pe_process_import_defs(output_bfd, &link_info); + pe_process_import_defs (output_bfd, & link_info); + + pe_find_data_imports (); + +#if ! (defined (TARGET_IS_i386pe) || defined (TARGET_IS_armpe)) if (link_info.shared) +#else + if (!link_info.relocatable) +#endif pe_dll_build_sections (output_bfd, &link_info); #ifndef TARGET_IS_i386pe @@ -760,10 +1032,122 @@ gld_${EMULATION_NAME}_after_open () } #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 bfd_symbol *s; + struct bfd_link_hash_entry * blhe; + char *other_bfd_filename; + 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_filename + = blhe->u.def.section->owner->my_archive + ? bfd_get_filename (blhe->u.def.section->owner->my_archive) + : bfd_get_filename (blhe->u.def.section->owner); + + if (strcmp (bfd_get_filename (is->the_bfd->my_archive), + other_bfd_filename) == 0) + continue; + + /* Rename this implib to match the other one. */ + n = xmalloc (strlen (other_bfd_filename) + 1); + strcpy (n, other_bfd_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; + lang_input_statement_type *is3; /* Careful - this is a shell script. Watch those dollar signs! */ /* Microsoft import libraries have every member named the same, @@ -778,21 +1162,59 @@ gld_${EMULATION_NAME}_after_open () { if (is->the_bfd->my_archive) { + char *pnt; bfd *arch = is->the_bfd->my_archive; + if (cur_arch != arch) { cur_arch = arch; is_ms_arch = 1; - for (is2 = is; - is2 && is2->the_bfd->my_archive == arch; - is2 = (lang_input_statement_type *)is2->next) + + for (is3 = is; + is3 && is3->the_bfd->my_archive == arch; + is3 = (lang_input_statement_type *) is3->next) + { + /* A MS dynamic import library can also contain static + members, so look for the first element with a .dll + extension, and use that for the remainder of the + comparisons. */ + pnt = strrchr (is3->the_bfd->filename, '.'); + if (pnt != NULL && strcmp (pnt, ".dll") == 0) + break; + } + + if (is3 == NULL) + is_ms_arch = 0; + else { - if (strcmp (is->the_bfd->filename, is2->the_bfd->filename)) - is_ms_arch = 0; + /* OK, found one. Now look to see if the remaining + (dynamic import) members use the same name. */ + for (is2 = is; + is2 && is2->the_bfd->my_archive == arch; + is2 = (lang_input_statement_type *) is2->next) + { + /* Skip static members, ie anything with a .obj + extension. */ + pnt = strrchr (is2->the_bfd->filename, '.'); + if (pnt != NULL && strcmp (pnt, ".obj") == 0) + continue; + + if (strcmp (is3->the_bfd->filename, + is2->the_bfd->filename)) + { + is_ms_arch = 0; + break; + } + } } } - if (is_ms_arch) + /* This fragment might have come from an .obj file in a Microsoft + import, and not an actual import record. If this is the case, + then leave the filename alone. */ + pnt = strrchr (is->the_bfd->filename, '.'); + + if (is_ms_arch && (strcmp (pnt, ".dll") == 0)) { int idata2 = 0, reloc_count=0; asection *sec; @@ -825,11 +1247,11 @@ gld_${EMULATION_NAME}_after_open () } } -static void -gld_${EMULATION_NAME}_before_allocation() +static void +gld_${EMULATION_NAME}_before_allocation (void) { #ifdef TARGET_IS_ppcpe - /* Here we rummage through the found bfds to collect toc information */ + /* Here we rummage through the found bfds to collect toc information. */ { LANG_FOR_EACH_INPUT_STATEMENT (is) { @@ -841,7 +1263,7 @@ gld_${EMULATION_NAME}_before_allocation() } } - /* We have seen it all. Allocate it, and carry on */ + /* We have seen it all. Allocate it, and carry on. */ ppc_allocate_toc_section (&link_info); #endif /* TARGET_IS_ppcpe */ @@ -851,7 +1273,7 @@ gld_${EMULATION_NAME}_before_allocation() Here we rummage through the found bfds to collect glue information. FIXME: should this be based on a command line - option? krk@cygnus.com */ + option? krk@cygnus.com. */ { LANG_FOR_EACH_INPUT_STATEMENT (is) { @@ -865,114 +1287,109 @@ gld_${EMULATION_NAME}_before_allocation() } } - /* We have seen it all. Allocate it, and carry on */ + /* We have seen it all. Allocate it, and carry on. */ bfd_arm_pe_allocate_interworking_sections (& link_info); #endif /* TARGET_IS_armpe */ + + before_allocation_default (); } #ifdef DLL_SUPPORT /* This is called when an input file isn't recognized as a BFD. We - check here for .DEF files and pull them in automatically. */ + check here for .DEF files and pull them in automatically. */ static int -saw_option(char *option) +saw_option (char *option) { int i; - for (i=0; init[i].ptr; i++) + + for (i = 0; init[i].ptr; i++) if (strcmp (init[i].symbol, option) == 0) return init[i].inited; return 0; } #endif /* DLL_SUPPORT */ -static boolean -gld_${EMULATION_NAME}_unrecognized_file(entry) - lang_input_statement_type *entry ATTRIBUTE_UNUSED; +static bfd_boolean +gld_${EMULATION_NAME}_unrecognized_file (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; inum_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; inum_exports; i++) + pe_def_file = def_file_parse (entry->filename, pe_def_file); + + if (pe_def_file) { - struct bfd_link_hash_entry *h; - sprintf(buf, "_%s", pe_def_file->exports[i].internal_name); + int i, buflen=0, len; + char *buf; - 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) + for (i = 0; i < pe_def_file->num_exports; i++) { - h->type = bfd_link_hash_undefined; - h->u.undef.abfd = NULL; - bfd_link_add_undef (link_info.hash, h); + len = strlen (pe_def_file->exports[i].internal_name); + if (buflen < len + 2) + buflen = len + 2; } - } - free (buf); - /* def_file_print (stdout, pe_def_file); */ - if (pe_def_file->is_dll == 1) - link_info.shared = 1; + buf = (char *) xmalloc (buflen); - 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)); - } + for (i = 0; i < pe_def_file->num_exports; i++) + { + struct bfd_link_hash_entry *h; -#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; + 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 (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; - + return FALSE; } -static boolean -gld_${EMULATION_NAME}_recognized_file(entry) - lang_input_statement_type *entry ATTRIBUTE_UNUSED; +static bfd_boolean +gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) { #ifdef DLL_SUPPORT #ifdef TARGET_IS_i386pe @@ -989,24 +1406,32 @@ gld_${EMULATION_NAME}_recognized_file(entry) #endif if (bfd_get_format (entry->the_bfd) == bfd_object) { - const char *ext = entry->filename + strlen (entry->filename) - 4; + char fbuf[LD_PATHMAX + 1]; + const char *ext; + + if (REALPATH (entry->filename, fbuf) == NULL) + strncpy (fbuf, entry->filename, sizeof (fbuf)); + + ext = fbuf + strlen (fbuf) - 4; + if (strcmp (ext, ".dll") == 0 || strcmp (ext, ".DLL") == 0) - return pe_implied_import_dll (entry->filename); + return pe_implied_import_dll (fbuf); } #endif - return false; + return FALSE; } static void -gld_${EMULATION_NAME}_finish () +gld_${EMULATION_NAME}_finish (void) { #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); - + 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) @@ -1014,35 +1439,41 @@ gld_${EMULATION_NAME}_finish () { static char buffer[32]; bfd_vma val; - + /* Special procesing is required for a Thumb entry symbol. The bottom bit of its address must be set. */ val = (h->u.def.value + bfd_get_section_vma (output_bfd, h->u.def.section->output_section) + h->u.def.section->output_offset); - + val |= 1; - + /* Now convert this value into a string and store it in entry_symbol where the lang_finish() function will pick it up. */ buffer[0] = '0'; buffer[1] = 'x'; - + sprintf_vma (buffer + 2, val); - - if (entry_symbol != NULL && entry_from_cmdline) + + if (entry_symbol.name != NULL && entry_from_cmdline) einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"), - thumb_entry_symbol, entry_symbol); - entry_symbol = buffer; + thumb_entry_symbol, entry_symbol.name); + entry_symbol.name = buffer; } else einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol); } #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) */ + finish_default (); + #ifdef DLL_SUPPORT - if (link_info.shared) + if (link_info.shared +#if !defined(TARGET_IS_shpe) && !defined(TARGET_IS_mipspe) + || (!link_info.relocatable && pe_def_file->num_exports != 0) +#endif + ) { pe_dll_fill_sections (output_bfd, &link_info); if (pe_implib_filename) @@ -1055,10 +1486,21 @@ gld_${EMULATION_NAME}_finish () 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; + } + } } @@ -1075,21 +1517,11 @@ gld_${EMULATION_NAME}_finish () default linker script using wildcards, and are sorted by sort_sections. */ -struct orphan_save -{ - lang_output_section_statement_type *os; - asection **section; - lang_statement_union_type **stmt; -}; - -/*ARGSUSED*/ -static boolean -gld_${EMULATION_NAME}_place_orphan (file, s) - lang_input_statement_type *file; - asection *s; +static bfd_boolean +gld_${EMULATION_NAME}_place_orphan (asection *s) { const char *secname; - char *hold_section_name; + const char *orig_secname; char *dollar = NULL; lang_output_section_statement_type *os; lang_statement_list_type add_child; @@ -1097,165 +1529,119 @@ gld_${EMULATION_NAME}_place_orphan (file, s) 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) + orig_secname = secname; + if (!link_info.relocatable + && (dollar = strchr (secname, '$')) != NULL) { - dollar = strchr (hold_section_name, '$'); - if (dollar != NULL) - *dollar = '\0'; + size_t len = dollar - orig_secname; + char *newname = xmalloc (len + 1); + memcpy (newname, orig_secname, len); + newname[len] = '\0'; + secname = newname; } - os = lang_output_section_find (hold_section_name); + os = lang_output_section_find (secname); lang_list_init (&add_child); if (os != NULL - && os->bfd_section != NULL - && ((s->flags ^ os->bfd_section->flags) & (SEC_LOAD | SEC_ALLOC)) == 0) + && (os->bfd_section == NULL + || os->bfd_section->flags == 0 + || ((s->flags ^ os->bfd_section->flags) + & (SEC_LOAD | SEC_ALLOC)) == 0)) { - wild_doit (&add_child, s, os, file); + /* We already have an output section statement with this + name, and its bfd section, if any, has compatible flags. + If the section already exists but does not have any flags set, + then it has been created by the linker, probably as a result of + a --section-start command line switch. */ + lang_add_section (&add_child, s, os); } else { + static struct orphan_save hold[] = + { + { ".text", + SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, + 0, 0, 0, 0 }, + { ".rdata", + SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, + 0, 0, 0, 0 }, + { ".data", + SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, + 0, 0, 0, 0 }, + { ".bss", + SEC_ALLOC, + 0, 0, 0, 0 } + }; + enum orphan_save_index + { + orphan_text = 0, + orphan_rodata, + orphan_data, + orphan_bss + }; + static int orphan_init_done = 0; 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; + lang_output_section_statement_type *after; etree_type *address; + if (!orphan_init_done) + { + struct orphan_save *ho; + for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) + if (ho->name != NULL) + { + ho->os = lang_output_section_find (ho->name); + if (ho->os != NULL && ho->os->flags == 0) + ho->os->flags = ho->flags; + } + orphan_init_done = 1; + } + /* 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 (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) - address = exp_intop ((bfd_vma) 0); + else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) + place = &hold[orphan_bss]; + else if ((s->flags & SEC_READONLY) == 0) + place = &hold[orphan_data]; + else if ((s->flags & SEC_CODE) == 0) + place = &hold[orphan_rodata]; 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); - - wild_doit (&add_child, s, os, file); - - lang_leave_output_section_statement - ((bfd_vma) 0, "*default*", - (struct lang_output_section_phdr_list *) NULL, "*default*"); - - stat_ptr = old; + place = &hold[orphan_text]; + after = NULL; 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->os == NULL) + place->os = lang_output_section_find (place->name); + after = place->os; + if (after == NULL) + after = lang_output_section_find_by_flags (s, &place->os, NULL); + if (after == NULL) + /* *ABS* is always the first output section statement. */ + after = (&lang_output_section_statement.head + ->output_section_statement); + } - 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. */ + /* 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. */ + if (bfd_get_section_by_name (output_bfd, secname) != NULL) + { + static int count = 1; + secname = bfd_get_unique_section_name (output_bfd, secname, &count); + if (secname == NULL) + einfo ("%F%P: place_orphan failed: %E\n"); } + + /* All sections in an executable must be aligned to a page boundary. */ + address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__")); + os = lang_insert_orphan (s, secname, after, place, address, &add_child); } { @@ -1263,13 +1649,12 @@ gld_${EMULATION_NAME}_place_orphan (file, s) if (dollar != NULL) { - boolean found_dollar; + bfd_boolean found_dollar; /* The section name has a '$'. Sort it with the other '$' sections. */ - - found_dollar = false; - for ( ; *pl != NULL; pl = &(*pl)->next) + found_dollar = FALSE; + for ( ; *pl != NULL; pl = &(*pl)->header.next) { lang_input_section_type *ls; const char *lname; @@ -1279,7 +1664,7 @@ gld_${EMULATION_NAME}_place_orphan (file, s) ls = &(*pl)->input_section; - lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section); + lname = bfd_get_section_name (ls->section->owner, ls->section); if (strchr (lname, '$') == NULL) { if (found_dollar) @@ -1287,8 +1672,8 @@ gld_${EMULATION_NAME}_place_orphan (file, s) } else { - found_dollar = true; - if (strcmp (secname, lname) < 0) + found_dollar = TRUE; + if (strcmp (orig_secname, lname) < 0) break; } } @@ -1296,93 +1681,140 @@ gld_${EMULATION_NAME}_place_orphan (file, s) if (add_child.head != NULL) { - add_child.head->next = *pl; + add_child.head->header.next = *pl; *pl = add_child.head; } } - free (hold_section_name); - - return true; + return TRUE; } -static boolean -gld_${EMULATION_NAME}_open_dynamic_archive (arch, search, entry) - const char * arch; - search_dirs_type * search; - lang_input_statement_type * entry; +static bfd_boolean +gld_${EMULATION_NAME}_open_dynamic_archive + (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; + return FALSE; filename = entry->filename; string = (char *) xmalloc (strlen (search->name) - + strlen (filename) - + sizeof "/lib.dll" - + 1); + + strlen (filename) + + sizeof "/lib.a.dll" +#ifdef DLL_SUPPORT + + (pe_dll_search_prefix ? strlen (pe_dll_search_prefix) : 0) +#endif + + 1); - /* Try "foo.dll" first. */ - sprintf (string, "%s/%s.dll", search->name, filename); + /* 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 "libfoo.dll" next. */ - sprintf (string, "%s/lib%s.dll", search->name, filename); - + /* 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)) - { - free (string); - return false; - } + { + /* 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 "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; + return TRUE; } static int -gld_${EMULATION_NAME}_find_potential_libraries (name, entry) - char * name; - lang_input_statement_type * entry; +gld_${EMULATION_NAME}_find_potential_libraries + (char *name, lang_input_statement_type *entry) { return ldfile_open_file_search (name, entry, "", ".lib"); } static char * -gld_${EMULATION_NAME}_get_script(isfile) - int *isfile; +gld_${EMULATION_NAME}_get_script (int *isfile) EOF # Scripts compiled in. # sed commands to quote an ld script as a C string. sc="-f stringify.sed" cat >>e${EMULATION_NAME}.c <> 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 +sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c +echo ' ; else if (link_info.relocatable) return' >> e${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 <