summaryrefslogtreecommitdiffstats
path: root/binutils-2.25/ld/emultempl/pe.em
diff options
context:
space:
mode:
Diffstat (limited to 'binutils-2.25/ld/emultempl/pe.em')
-rw-r--r--binutils-2.25/ld/emultempl/pe.em284
1 files changed, 256 insertions, 28 deletions
diff --git a/binutils-2.25/ld/emultempl/pe.em b/binutils-2.25/ld/emultempl/pe.em
index 4df7753c..979cc8b8 100644
--- a/binutils-2.25/ld/emultempl/pe.em
+++ b/binutils-2.25/ld/emultempl/pe.em
@@ -8,7 +8,7 @@ fi
rm -f e${EMULATION_NAME}.c
(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
fragment <<EOF
-/* Copyright 1995-2013 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2014 Free Software Foundation, Inc.
This file is part of the GNU Binutils.
@@ -66,6 +66,7 @@ fragment <<EOF
#include "ldlex.h"
#include "ldmisc.h"
#include "ldctor.h"
+#include "ldbuildid.h"
#include "coff/internal.h"
/* FIXME: See bfd/peXXigen.c for why we include an architecture specific
@@ -73,9 +74,10 @@ fragment <<EOF
#include "coff/i386.h"
#include "coff/pe.h"
-/* FIXME: This is a BFD internal header file, and we should not be
+/* FIXME: These are BFD internal header files, and we should not be
using it here. */
#include "../bfd/libcoff.h"
+#include "../bfd/libpei.h"
#include "deffile.h"
#include "pe-dll.h"
@@ -130,12 +132,15 @@ static int support_old_code = 0;
static char * thumb_entry_symbol = NULL;
static lang_assignment_statement_type *image_base_statement = 0;
static unsigned short pe_dll_characteristics = 0;
+static bfd_boolean insert_timestamp = TRUE;
+static const char *emit_build_id;
#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 unsigned long pe_auto_image_base = 0x61500000;
static char *pe_dll_search_prefix = NULL;
#endif
@@ -239,8 +244,7 @@ fragment <<EOF
(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)
+#define OPTION_LARGE_ADDRESS_AWARE (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
#define OPTION_DISABLE_LARGE_ADDRESS_AWARE \
(OPTION_LARGE_ADDRESS_AWARE + 1)
#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 \
@@ -251,15 +255,13 @@ fragment <<EOF
(OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 + 1)
#define OPTION_USE_NUL_PREFIXED_IMPORT_TABLES \
(OPTION_EXCLUDE_MODULES_FOR_IMPLIB + 1)
-#define OPTION_NO_LEADING_UNDERSCORE \
- (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES + 1)
-#define OPTION_LEADING_UNDERSCORE \
- (OPTION_NO_LEADING_UNDERSCORE + 1)
+#define OPTION_NO_LEADING_UNDERSCORE (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES + 1)
+#define OPTION_LEADING_UNDERSCORE (OPTION_NO_LEADING_UNDERSCORE + 1)
#define OPTION_ENABLE_LONG_SECTION_NAMES \
(OPTION_LEADING_UNDERSCORE + 1)
#define OPTION_DISABLE_LONG_SECTION_NAMES \
(OPTION_ENABLE_LONG_SECTION_NAMES + 1)
-/* DLLCharacteristics flags */
+/* DLLCharacteristics flags. */
#define OPTION_DYNAMIC_BASE (OPTION_DISABLE_LONG_SECTION_NAMES + 1)
#define OPTION_FORCE_INTEGRITY (OPTION_DYNAMIC_BASE + 1)
#define OPTION_NX_COMPAT (OPTION_FORCE_INTEGRITY + 1)
@@ -268,6 +270,10 @@ fragment <<EOF
#define OPTION_NO_BIND (OPTION_NO_SEH + 1)
#define OPTION_WDM_DRIVER (OPTION_NO_BIND + 1)
#define OPTION_TERMINAL_SERVER_AWARE (OPTION_WDM_DRIVER + 1)
+/* Determinism. */
+#define OPTION_INSERT_TIMESTAMP (OPTION_TERMINAL_SERVER_AWARE + 1)
+#define OPTION_NO_INSERT_TIMESTAMP (OPTION_INSERT_TIMESTAMP + 1)
+#define OPTION_BUILD_ID (OPTION_NO_INSERT_TIMESTAMP + 1)
static void
gld${EMULATION_NAME}_add_options
@@ -301,6 +307,8 @@ gld${EMULATION_NAME}_add_options
OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
{"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
{"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
+ {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
+ {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
#ifdef DLL_SUPPORT
/* getopt allows abbreviations, so we do this to stop it
from treating -o as an abbreviation for this option. */
@@ -321,7 +329,7 @@ gld${EMULATION_NAME}_add_options
treating -c as an abbreviation for these --compat-implib. */
{"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
{"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
- {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
+ {"enable-auto-image-base", optional_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
{"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
{"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
{"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
@@ -345,6 +353,7 @@ gld${EMULATION_NAME}_add_options
{"no-bind", no_argument, NULL, OPTION_NO_BIND},
{"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
{"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
+ {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
{NULL, no_argument, NULL, 0}
};
@@ -384,7 +393,7 @@ typedef struct
#define U_SIZE(CSTR) \
(sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1))
-#define D(field,symbol,def,usc) {&pe.field,sizeof(pe.field), def, symbol, 0, usc}
+#define D(field,symbol,def,usc) {&pe.field, sizeof (pe.field), def, symbol, 0, usc}
static definfo init[] =
{
@@ -438,6 +447,8 @@ gld_${EMULATION_NAME}_list_options (FILE *file)
fprintf (file, _(" --support-old-code Support interworking with old code\n"));
fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
+ fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default).\n"));
+ fprintf (file, _(" This makes binaries non-deterministic\n"));
#ifdef DLL_SUPPORT
fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
@@ -452,11 +463,12 @@ gld_${EMULATION_NAME}_list_options (FILE *file)
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, _(" --warn-duplicate-exports Warn about duplicate exports\n"));
fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
create __imp_<SYMBOL> as well.\n"));
- fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
- unless user specifies one\n"));
+ fprintf (file, _(" --enable-auto-image-base[=<address>] Automatically choose image base for DLLs\n\
+ (optionally starting with address) unless\n\
+ specifically set with --image-base\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 without\n\
an importlib, use <string><basename>.dll\n\
@@ -490,6 +502,7 @@ gld_${EMULATION_NAME}_list_options (FILE *file)
fprintf (file, _(" --no-bind Do not bind this image\n"));
fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
+ fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
}
@@ -684,6 +697,7 @@ set_pe_stack_heap (char *resname, char *comname)
einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
}
+#define DEFAULT_BUILD_ID_STYLE "md5"
static bfd_boolean
gld${EMULATION_NAME}_handle_option (int optc)
@@ -754,6 +768,12 @@ gld${EMULATION_NAME}_handle_option (int optc)
case OPTION_LEADING_UNDERSCORE:
pe_leading_underscore = 1;
break;
+ case OPTION_INSERT_TIMESTAMP:
+ insert_timestamp = TRUE;
+ break;
+ case OPTION_NO_INSERT_TIMESTAMP:
+ insert_timestamp = FALSE;
+ break;
#ifdef DLL_SUPPORT
case OPTION_OUT_DEF:
pe_out_def_filename = xstrdup (optarg);
@@ -796,6 +816,12 @@ gld${EMULATION_NAME}_handle_option (int optc)
break;
case OPTION_ENABLE_AUTO_IMAGE_BASE:
pe_enable_auto_image_base = 1;
+ if (optarg && *optarg)
+ {
+ char *end;
+ pe_auto_image_base = strtoul (optarg, &end, 0);
+ /* XXX should check that we actually parsed something */
+ }
break;
case OPTION_DISABLE_AUTO_IMAGE_BASE:
pe_enable_auto_image_base = 0;
@@ -866,6 +892,17 @@ gld${EMULATION_NAME}_handle_option (int optc)
case OPTION_TERMINAL_SERVER_AWARE:
pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
break;
+ case OPTION_BUILD_ID:
+ if (emit_build_id != NULL)
+ {
+ free ((char *) emit_build_id);
+ emit_build_id = NULL;
+ }
+ if (optarg == NULL)
+ optarg = DEFAULT_BUILD_ID_STYLE;
+ if (strcmp (optarg, "none"))
+ emit_build_id = xstrdup (optarg);
+ break;
}
/* Set DLLCharacteristics bits */
@@ -905,7 +942,7 @@ static unsigned long
compute_dll_image_base (const char *ofile)
{
unsigned long hash = strhash (ofile);
- return 0x61300000 + ((hash << 16) & 0x0FFC0000);
+ return pe_auto_image_base + ((hash << 16) & 0x0FFC0000);
}
#endif
@@ -1221,6 +1258,169 @@ debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
*found = 1;
}
+static bfd_boolean
+pecoff_checksum_contents (bfd *abfd,
+ void (*process) (const void *, size_t, void *),
+ void *arg)
+{
+ file_ptr filepos = (file_ptr) 0;
+
+ while (1)
+ {
+ unsigned char b;
+ int status;
+
+ if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
+ return 0;
+
+ status = bfd_bread (&b, (bfd_size_type) 1, abfd);
+ if (status < 1)
+ {
+ break;
+ }
+
+ (*process) (&b, 1, arg);
+ filepos += 1;
+ }
+
+ return TRUE;
+}
+
+static bfd_boolean
+write_build_id (bfd *abfd)
+{
+ struct pe_tdata *t = pe_data (abfd);
+ asection *asec;
+ struct bfd_link_order *link_order = NULL;
+ unsigned char *contents;
+ bfd_size_type size;
+ bfd_size_type build_id_size;
+ unsigned char *build_id;
+
+ /* Find the section the .buildid output section has been merged info. */
+ for (asec = abfd->sections; asec != NULL; asec = asec->next)
+ {
+ struct bfd_link_order *l = NULL;
+ for (l = asec->map_head.link_order; l != NULL; l = l->next)
+ {
+ if ((l->type == bfd_indirect_link_order))
+ {
+ if (l->u.indirect.section == t->build_id.sec)
+ {
+ link_order = l;
+ break;
+ }
+ }
+ }
+
+ if (link_order)
+ break;
+ }
+
+ if (!link_order)
+ {
+ einfo (_("%P: warning: .buildid section discarded,"
+ " --build-id ignored.\n"));
+ return TRUE;
+ }
+
+ if (t->build_id.sec->contents == NULL)
+ t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
+ contents = t->build_id.sec->contents;
+ size = t->build_id.sec->size;
+
+ build_id_size = compute_build_id_size (t->build_id.style);
+ build_id = xmalloc (build_id_size);
+ generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
+
+ bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
+
+ /* Construct a debug directory entry which points to an immediately following CodeView record. */
+ struct internal_IMAGE_DEBUG_DIRECTORY idd;
+ idd.Characteristics = 0;
+ idd.TimeDateStamp = 0;
+ idd.MajorVersion = 0;
+ idd.MinorVersion = 0;
+ idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
+ idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
+ idd.AddressOfRawData = asec->vma - ib + link_order->offset
+ + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
+ idd.PointerToRawData = asec->filepos + link_order->offset
+ + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
+
+ struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
+ _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
+
+ /* Write the debug directory entry. */
+ if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
+ return 0;
+
+ if ((bfd_bwrite (contents, size, abfd) != size))
+ return 0;
+
+ /* Construct the CodeView record. */
+ CODEVIEW_INFO cvinfo;
+ cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
+ cvinfo.Age = 1;
+
+ /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
+ memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
+ memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
+ ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
+
+ free (build_id);
+
+ /* Write the codeview record. */
+ if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
+ return 0;
+
+ /* Record the location of the debug directory in the data directory. */
+ pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
+ = asec->vma - ib + link_order->offset;
+ pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
+ = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
+
+ return TRUE;
+}
+
+/* Make .buildid section, and set up coff_tdata->build_id. */
+static bfd_boolean
+setup_build_id (bfd *ibfd)
+{
+ asection *s;
+ flagword flags;
+
+ if (!validate_build_id_style (emit_build_id))
+ {
+ einfo ("%P: warning: unrecognized --build-id style ignored.\n");
+ return FALSE;
+ }
+
+ flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
+ s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
+ if (s != NULL)
+ {
+ struct pe_tdata *t = pe_data (link_info.output_bfd);
+ t->build_id.after_write_object_contents = &write_build_id;
+ t->build_id.style = emit_build_id;
+ t->build_id.sec = s;
+
+ /* Section is a fixed size:
+ One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
+ pointing at a CV_INFO_PDB70 record containing the build-id, with a
+ null byte for PdbFileName. */
+ s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
+ + sizeof (CV_INFO_PDB70) + 1;
+
+ return TRUE;
+ }
+
+ einfo ("%P: warning: Cannot create .buildid section,"
+ " --build-id ignored.\n");
+ return FALSE;
+}
+
static void
gld_${EMULATION_NAME}_after_open (void)
{
@@ -1238,11 +1438,31 @@ gld_${EMULATION_NAME}_after_open (void)
printf ("-%s\n", sym->root.string);
bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
- for (a = link_info.input_bfds; a; a = a->link_next)
+ for (a = link_info.input_bfds; a; a = a->link.next)
printf ("*%s\n",a->filename);
}
#endif
+ if (emit_build_id != NULL)
+ {
+ bfd *abfd;
+
+ /* Find a COFF input. */
+ for (abfd = link_info.input_bfds;
+ abfd != (bfd *) NULL; abfd = abfd->link.next)
+ if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
+ break;
+
+ /* If there are no COFF input files do not try to
+ add a build-id section. */
+ if (abfd == NULL
+ || !setup_build_id (abfd))
+ {
+ free ((char *) emit_build_id);
+ emit_build_id = NULL;
+ }
+ }
+
/* Pass the wacky PE command line options into the output bfd.
FIXME: This should be done via a function, rather than by
including an internal BFD header. */
@@ -1255,6 +1475,7 @@ gld_${EMULATION_NAME}_after_open (void)
pe_data (link_info.output_bfd)->pe_opthdr = pe;
pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
pe_data (link_info.output_bfd)->real_flags |= real_flags;
+ pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
/* At this point we must decide whether to use long section names
in the output or not. If the user hasn't explicitly specified
@@ -1264,17 +1485,23 @@ gld_${EMULATION_NAME}_after_open (void)
find it, so enable it in that case. */
if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none)
{
- /* Iterate over all sections of all input BFDs, checking
- for any that begin 'debug_' and are long names. */
- LANG_FOR_EACH_INPUT_STATEMENT (is)
+ if (link_info.relocatable)
+ pe_use_coff_long_section_names = 1;
+ else
{
- int found_debug = 0;
- bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
- if (found_debug)
- {
- pe_use_coff_long_section_names = 1;
- break;
- }
+ /* Iterate over all sections of all input BFDs, checking
+ for any that begin 'debug_' and are long names. */
+ LANG_FOR_EACH_INPUT_STATEMENT (is)
+ {
+ int found_debug = 0;
+
+ bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
+ if (found_debug)
+ {
+ pe_use_coff_long_section_names = 1;
+ break;
+ }
+ }
}
}
@@ -2101,7 +2328,7 @@ gld_${EMULATION_NAME}_open_dynamic_archive
unsigned int i;
- if (! entry->flags.maybe_archive)
+ if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
return FALSE;
filename = entry->filename;
@@ -2227,6 +2454,7 @@ struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
gld_${EMULATION_NAME}_list_options,
gld_${EMULATION_NAME}_recognized_file,
gld_${EMULATION_NAME}_find_potential_libraries,
- NULL /* new_vers_pattern. */
+ NULL, /* new_vers_pattern. */
+ NULL /* extra_map_file_text. */
};
EOF
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 16:38:36 +0000