gcc/

	* lto-wrapper.c (compile_offload_image): Start processing in_argv
	from 0 instead of 1.
	(run_gcc): Put offload objects into offload_argv, put LTO objects and
	possible preceding arguments into lto_argv.
	Pass offload_argv to compile_images_for_offload_targets instead of argv.
	Use lto_argv for LTO recompilation instead of argv.
lto-plugin/
	* lto-plugin.c (offload_files, num_offload_files): New static variables.
	(free_1): Use arguments instead of global variables.
	(free_2): Free offload_files.
	(all_symbols_read_handler): Add names from offload_files to lto-wrapper
	arguments.
	(claim_file_handler): Do not add file to claimed_files if it contains
	offload sections without LTO sections.  Add it to offload_files instead.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218543 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 61 insertions, 14 deletions

diff --git a/lto-plugin/ChangeLog b/lto-plugin/ChangeLog
index 5307e478ef3d..e8ec05b40411 100644
--- a/lto-plugin/ChangeLog
+++ b/lto-plugin/ChangeLog
@@ -1,3 +1,13 @@
+2014-12-09  Ilya Verbin  <ilya.verbin@intel.com>
+
+	* lto-plugin.c (offload_files, num_offload_files): New static variables.
+	(free_1): Use arguments instead of global variables.
+	(free_2): Free offload_files.
+	(all_symbols_read_handler): Add names from offload_files to lto-wrapper
+	arguments.
+	(claim_file_handler): Do not add file to claimed_files if it contains
+	offload sections without LTO sections.  Add it to offload_files instead.
+
 2014-11-21  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR bootstrap/63784
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index fb6555daf911..8d957402ba66 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -152,6 +152,9 @@ static ld_plugin_add_symbols add_symbols;
 static struct plugin_file_info *claimed_files = NULL;
 static unsigned int num_claimed_files = 0;
 
+static struct plugin_file_info *offload_files = NULL;
+static unsigned int num_offload_files = 0;
+
 static char **output_files = NULL;
 static unsigned int num_output_files = 0;
 
@@ -313,12 +316,12 @@ translate (char *data, char *end, struct plugin_symtab *out)
    resolution. */
 
 static void
-free_1 (void)
+free_1 (struct plugin_file_info *files, unsigned num_files)
 {
   unsigned int i;
-  for (i = 0; i < num_claimed_files; i++)
+  for (i = 0; i < num_files; i++)
     {
-      struct plugin_file_info *info = &claimed_files[i];
+      struct plugin_file_info *info = &files[i];
       struct plugin_symtab *symtab = &info->symtab;
       unsigned int j;
       for (j = 0; j < symtab->nsyms; j++)
@@ -346,6 +349,14 @@ free_2 (void)
       free (info->name);
     }
 
+  for (i = 0; i < num_offload_files; i++)
+    {
+      struct plugin_file_info *info = &offload_files[i];
+      struct plugin_symtab *symtab = &info->symtab;
+      free (symtab->aux);
+      free (info->name);
+    }
+
   for (i = 0; i < num_output_files; i++)
     free (output_files[i]);
   free (output_files);
@@ -354,6 +365,10 @@ free_2 (void)
   claimed_files = NULL;
   num_claimed_files = 0;
 
+  free (offload_files);
+  offload_files = NULL;
+  num_offload_files = 0;
+
   free (arguments_file_name);
   arguments_file_name = NULL;
 }
@@ -608,10 +623,11 @@ static enum ld_plugin_status
 all_symbols_read_handler (void)
 {
   unsigned i;
-  unsigned num_lto_args = num_claimed_files + lto_wrapper_num_args + 1;
+  unsigned num_lto_args
+    = num_claimed_files + num_offload_files + lto_wrapper_num_args + 1;
   char **lto_argv;
   const char **lto_arg_ptr;
-  if (num_claimed_files == 0)
+  if (num_claimed_files + num_offload_files == 0)
     return LDPS_OK;
 
   if (nop)
@@ -626,7 +642,8 @@ all_symbols_read_handler (void)
 
   write_resolution ();
 
-  free_1 ();
+  free_1 (claimed_files, num_claimed_files);
+  free_1 (offload_files, num_offload_files);
 
   for (i = 0; i < lto_wrapper_num_args; i++)
     *lto_arg_ptr++ = lto_wrapper_argv[i];
@@ -638,6 +655,13 @@ all_symbols_read_handler (void)
       *lto_arg_ptr++ = info->name;
     }
 
+  for (i = 0; i < num_offload_files; i++)
+    {
+      struct plugin_file_info *info = &offload_files[i];
+
+      *lto_arg_ptr++ = info->name;
+    }
+
   *lto_arg_ptr++ = NULL;
   exec_lto_wrapper (lto_argv);
 
@@ -949,16 +973,29 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
   if (obj.found > 1)
     resolve_conflicts (&lto_file.symtab, &lto_file.conflicts);
 
-  status = add_symbols (file->handle, lto_file.symtab.nsyms,
-			lto_file.symtab.syms);
-  check (status == LDPS_OK, LDPL_FATAL, "could not add symbols");
+  if (obj.found > 0)
+    {
+      status = add_symbols (file->handle, lto_file.symtab.nsyms,
+			    lto_file.symtab.syms);
+      check (status == LDPS_OK, LDPL_FATAL, "could not add symbols");
+
+      num_claimed_files++;
+      claimed_files =
+	xrealloc (claimed_files,
+		  num_claimed_files * sizeof (struct plugin_file_info));
+      claimed_files[num_claimed_files - 1] = lto_file;
+    }
+
+  if (obj.found == 0 && obj.offload == 1)
+    {
+      num_offload_files++;
+      offload_files =
+	xrealloc (offload_files,
+		  num_offload_files * sizeof (struct plugin_file_info));
+      offload_files[num_offload_files - 1] = lto_file;
+    }
 
   *claimed = 1;
-  num_claimed_files++;
-  claimed_files =
-    xrealloc (claimed_files,
-	      num_claimed_files * sizeof (struct plugin_file_info));
-  claimed_files[num_claimed_files - 1] = lto_file;
 
   goto cleanup;