* windres.c (define_resource): Use zero for timestamp, making

	output deterministic. time.h include is no longer needed.
	* resres.c (res_append_resource): Likewise.

	* pe-dll.c (fill_edata): Only use a real timestamp if
	--insert-timestamp was used.
	* emultempl/pe.em: Add the --insert-timestamp option.
	* emultempl/pep.em: Likewise for 64bit.
	* ld.texinfo: Document the --insert-timestamp option.

	* libcoff-in.h: Add insert_timestamp flag to the pe_data struct.
	* libcoff.h: Regenerate.
	* peXXigen.c (_bfd_XXi_only_swap_filehdr_out): Only use a real
	timestamp if --insert-timestamp was used.

5 files changed, 41 insertions, 13 deletions

diff --git a/ld/ChangeLog b/ld/ChangeLog
index e98129d..4582adb 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,11 @@
+2013-11-22  Cory Fields  <cory@coryfields.com>
+
+	* pe-dll.c (fill_edata): Only use a real timestamp if
+	--insert-timestamp was used.
+	* emultempl/pe.em: Add the --insert-timestamp option.
+	* emultempl/pep.em: Likewise for 64bit.
+	* ld.texinfo: Document the --insert-timestamp option.
+
 2013-11-22  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>
 
 	* scripttempl/avr.sc: Set .data section's LMA to next available
diff --git a/ld/emultempl/pe.em b/ld/emultempl/pe.em
index 4df7753..5d6da9e 100644
--- a/ld/emultempl/pe.em
+++ b/ld/emultempl/pe.em
@@ -130,6 +130,7 @@ 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 = FALSE;
 
 #ifdef DLL_SUPPORT
 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable.  */
@@ -239,8 +240,7 @@ 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 +251,13 @@ 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 +266,8 @@ 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)
 
 static void
 gld${EMULATION_NAME}_add_options
@@ -301,6 +301,7 @@ gld${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},
 #ifdef DLL_SUPPORT
     /* getopt allows abbreviations, so we do this to stop it
        from treating -o as an abbreviation for this option.  */
@@ -438,6 +439,8 @@ gld_${EMULATION_NAME}_list_options (FILE *file)
   fprintf (file, _("  --support-old-code                 Support interworking with old code\n"));
   fprintf (file, _("  --[no-]leading-underscore          Set explicit symbol underscore prefix mode\n"));
   fprintf (file, _("  --thumb-entry=<symbol>             Set the entry point to be Thumb <symbol>\n"));
+  fprintf (file, _("  --insert-timestamp                 Use a real timestamp rather than zero.\n"));
+  fprintf (file, _("                                     This makes binaries non-deterministic\n"));
 #ifdef DLL_SUPPORT
   fprintf (file, _("  --add-stdcall-alias                Export symbols with and without @nn\n"));
   fprintf (file, _("  --disable-stdcall-fixup            Don't link _sym to _sym@nn\n"));
@@ -754,6 +757,9 @@ gld${EMULATION_NAME}_handle_option (int optc)
     case OPTION_LEADING_UNDERSCORE:
       pe_leading_underscore = 1;
       break;
+    case OPTION_INSERT_TIMESTAMP:
+      insert_timestamp = TRUE;
+      break;
 #ifdef DLL_SUPPORT
     case OPTION_OUT_DEF:
       pe_out_def_filename = xstrdup (optarg);
@@ -1255,6 +1261,7 @@ 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
diff --git a/ld/emultempl/pep.em b/ld/emultempl/pep.em
index 3e8b65e..b738800 100644
--- a/ld/emultempl/pep.em
+++ b/ld/emultempl/pep.em
@@ -18,8 +18,7 @@ esac
 rm -f e${EMULATION_NAME}.c
 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
 fragment <<EOF
-/* Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012
-   Free Software Foundation, Inc.
+/* Copyright 2006-2013 Free Software Foundation, Inc.
    Written by Kai Tietz, OneVision Software GmbH&CoKg.
 
    This file is part of the GNU Binutils.
@@ -146,6 +145,7 @@ static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
 static int support_old_code = 0;
 static lang_assignment_statement_type *image_base_statement = 0;
 static unsigned short pe_dll_characteristics = 0;
+static bfd_boolean insert_timestamp = FALSE;
 
 #ifdef DLL_SUPPORT
 static int    pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default).  */
@@ -241,6 +241,7 @@ enum options
   OPTION_NO_SEH,
   OPTION_NO_BIND,
   OPTION_WDM_DRIVER,
+  OPTION_INSERT_TIMESTAMP,
   OPTION_TERMINAL_SERVER_AWARE
 };
 
@@ -316,6 +317,7 @@ 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},
+    {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
     {NULL, no_argument, NULL, 0}
   };
 
@@ -402,6 +404,8 @@ gld_${EMULATION_NAME}_list_options (FILE *file)
   fprintf (file, _("  --subsystem <name>[:<version>]     Set required OS subsystem [& version]\n"));
   fprintf (file, _("  --support-old-code                 Support interworking with old code\n"));
   fprintf (file, _("  --[no-]leading-underscore          Set explicit symbol underscore prefix mode\n"));
+  fprintf (file, _("  --insert-timestamp                 Use a real timestamp rather than zero.\n"));
+  fprintf (file, _("                                     This makes binaries non-deterministic\n"));
 #ifdef DLL_SUPPORT
   fprintf (file, _("  --add-stdcall-alias                Export symbols with and without @nn\n"));
   fprintf (file, _("  --disable-stdcall-fixup            Don't link _sym to _sym@nn\n"));
@@ -707,6 +711,9 @@ gld${EMULATION_NAME}_handle_option (int optc)
     case OPTION_LEADING_UNDERSCORE:
       pep_leading_underscore = 1;
       break;
+    case OPTION_INSERT_TIMESTAMP:
+      insert_timestamp = TRUE;
+      break;
 #ifdef DLL_SUPPORT
     case OPTION_OUT_DEF:
       pep_out_def_filename = xstrdup (optarg);
@@ -1219,6 +1226,7 @@ gld_${EMULATION_NAME}_after_open (void)
   pe_data (link_info.output_bfd)->pe_opthdr = pep;
   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
diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index e4788f6..c925ecb 100644
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -2657,6 +2657,11 @@ The driver uses the MS Windows Driver Model.
 @item --tsaware
 The image is Terminal Server aware.
 
+@kindex --insert-timestamp
+@item --insert-timestamp
+Insert a real timestamp into the image, rather than the default value
+of zero.  This will result in a slightly different results with each
+invocation, which could be helpful for distributing unique images.
 @end table
 
 @c man end
diff --git a/ld/pe-dll.c b/ld/pe-dll.c
index 7d5f90d..8777efb 100644
--- a/ld/pe-dll.c
+++ b/ld/pe-dll.c
@@ -1169,9 +1169,6 @@ fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED)
   unsigned char *enameptrs;
   unsigned char *eordinals;
   char *enamestr;
-  time_t now;
-
-  time (&now);
 
   edata_d = xmalloc (edata_sz);
 
@@ -1186,7 +1183,10 @@ fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED)
 		   + edata_s->output_section->vma - image_base)
 
   memset (edata_d, 0, edata_sz);
-  bfd_put_32 (abfd, now, edata_d + 4);
+
+  if (pe_data (abfd)->insert_timestamp)
+    H_PUT_32 (abfd, time (0), edata_d + 4);
+
   if (pe_def_file->version_major != -1)
     {
       bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8);