gcc/

	PR driver/68463
	* config/gnu-user.h (CRTOFFLOADBEGIN): Define.  Add crtoffloadbegin.o if
	offloading is enabled and -fopenacc or -fopenmp is specified.
	(CRTOFFLOADEND): Likewise.
	(GNU_USER_TARGET_STARTFILE_SPEC): Add CRTOFFLOADBEGIN.
	(GNU_USER_TARGET_ENDFILE_SPEC): Add CRTOFFLOADEND.
	* lto-wrapper.c (offloadbegin, offloadend): Remove static vars.
	(offload_objects_file_name): New static var.
	(tool_cleanup): Remove offload_objects_file_name file.
	(find_offloadbeginend): Replace with ...
	(find_crtoffloadtable): ... this.
	(run_gcc): Remove offload_argc and offload_argv.
	Get offload_objects_file_name from -foffload-objects=... option.
	Read names of object files with offload from this file, pass them to
	compile_images_for_offload_targets.  Don't call find_offloadbeginend and
	don't pass offloadbegin and offloadend to the linker.  Don't pass
	offload non-LTO files to the linker, because now they're not claimed.
libgcc/
	PR driver/68463
	* Makefile.in (crtoffloadtable$(objext)): New rule.
	* configure.ac (extra_parts): Add crtoffloadtable$(objext) if
	enable_offload_targets is not empty.
	* configure: Regenerate.
	* offloadstuff.c: Move __OFFLOAD_TABLE__ from crtoffloadend to
	crtoffloadtable.
libgomp/
	PR driver/68463
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims-2.c: Remove.
lto-plugin/
	PR driver/68463
	* lto-plugin.c (struct plugin_offload_file): New.
	(offload_files): Change type.
	(offload_files_last, offload_files_last_obj): New.
	(offload_files_last_lto): New.
	(free_2): Adjust accordingly.
	(all_symbols_read_handler): Don't add offload files to lto_arg_ptr.
	Don't call free_1 for offload_files.  Write names of object files with
	offloading to the temporary file.  Add new option to lto_arg_ptr.
	(claim_file_handler): Don't claim file if it contains offload sections
	without LTO sections.  If it contains offload sections, add to the list.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@233712 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 26 insertions, 8 deletions

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 4020e235bf1..36d10b0450f 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,13 @@
+2016-02-25  Ilya Verbin  <ilya.verbin@intel.com>
+
+	PR driver/68463
+	* Makefile.in (crtoffloadtable$(objext)): New rule.
+	* configure.ac (extra_parts): Add crtoffloadtable$(objext) if
+	enable_offload_targets is not empty.
+	* configure: Regenerate.
+	* offloadstuff.c: Move __OFFLOAD_TABLE__ from crtoffloadend to
+	crtoffloadtable.
+
 2016-02-17  Max Filippov  <jcmvbkbc@gmail.com>
 
 	* config/xtensa/ieee754-df.S (__muldf3_aux, __divdf3_aux): Add
diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in
index 570b1a7da07..f09b39b0e85 100644
--- a/libgcc/Makefile.in
+++ b/libgcc/Makefile.in
@@ -995,12 +995,16 @@ crtbeginT$(objext): $(srcdir)/crtstuff.c
 	$(crt_compile) $(CRTSTUFF_T_CFLAGS) -c $< -DCRT_BEGIN -DCRTSTUFFT_O
 
 # crtoffloadbegin and crtoffloadend contain symbols, that mark the begin and
-# the end of tables with addresses, required for offloading.
+# the end of tables with addresses, required for offloading.  crtoffloadtable
+# contains the array with addresses of those symbols.
 crtoffloadbegin$(objext): $(srcdir)/offloadstuff.c
 	$(crt_compile) $(CRTSTUFF_T_CFLAGS) -c $< -DCRT_BEGIN
 
 crtoffloadend$(objext): $(srcdir)/offloadstuff.c
 	$(crt_compile) $(CRTSTUFF_T_CFLAGS) -c $< -DCRT_END
+
+crtoffloadtable$(objext): $(srcdir)/offloadstuff.c
+	$(crt_compile) $(CRTSTUFF_T_CFLAGS) -c $< -DCRT_TABLE
 endif
 
 ifeq ($(enable_vtable_verify),yes)
diff --git a/libgcc/configure b/libgcc/configure
index de8c13c4ba3..f3f360512c4 100644
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -4835,7 +4835,7 @@ fi
 
 
 if test x"$enable_offload_targets" != x; then
-  extra_parts="${extra_parts} crtoffloadbegin.o crtoffloadend.o"
+  extra_parts="${extra_parts} crtoffloadbegin.o crtoffloadend.o crtoffloadtable.o"
 fi
 
 # Check if Solaris/x86 linker supports ZERO terminator unwind entries.
diff --git a/libgcc/configure.ac b/libgcc/configure.ac
index 860a5f58100..897259e62bc 100644
--- a/libgcc/configure.ac
+++ b/libgcc/configure.ac
@@ -418,7 +418,7 @@ AC_SUBST(accel_dir_suffix)
 AC_SUBST(real_host_noncanonical)
 
 if test x"$enable_offload_targets" != x; then
-  extra_parts="${extra_parts} crtoffloadbegin.o crtoffloadend.o"
+  extra_parts="${extra_parts} crtoffloadbegin.o crtoffloadend.o crtoffloadtable.o"
 fi
 
 # Check if Solaris/x86 linker supports ZERO terminator unwind entries.
diff --git a/libgcc/offloadstuff.c b/libgcc/offloadstuff.c
index 45e89cf9df1..4ab639721cb 100644
--- a/libgcc/offloadstuff.c
+++ b/libgcc/offloadstuff.c
@@ -40,23 +40,22 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #include "tm.h"
 #include "libgcc_tm.h"
 
+#if defined(HAVE_GAS_HIDDEN) && ENABLE_OFFLOADING == 1
+
 #define OFFLOAD_FUNC_TABLE_SECTION_NAME ".gnu.offload_funcs"
 #define OFFLOAD_VAR_TABLE_SECTION_NAME ".gnu.offload_vars"
 
 #ifdef CRT_BEGIN
 
-#if defined(HAVE_GAS_HIDDEN) && defined(ENABLE_OFFLOADING)
 const void *const __offload_func_table[0]
   __attribute__ ((__used__, visibility ("hidden"),
 		  section (OFFLOAD_FUNC_TABLE_SECTION_NAME))) = { };
 const void *const __offload_var_table[0]
   __attribute__ ((__used__, visibility ("hidden"),
 		  section (OFFLOAD_VAR_TABLE_SECTION_NAME))) = { };
-#endif
 
 #elif defined CRT_END
 
-#if defined(HAVE_GAS_HIDDEN) && defined(ENABLE_OFFLOADING)
 const void *const __offload_funcs_end[0]
   __attribute__ ((__used__, visibility ("hidden"),
 		  section (OFFLOAD_FUNC_TABLE_SECTION_NAME))) = { };
@@ -64,8 +63,12 @@ const void *const __offload_vars_end[0]
   __attribute__ ((__used__, visibility ("hidden"),
 		  section (OFFLOAD_VAR_TABLE_SECTION_NAME))) = { };
 
+#elif defined CRT_TABLE
+
 extern const void *const __offload_func_table[];
 extern const void *const __offload_var_table[];
+extern const void *const __offload_funcs_end[];
+extern const void *const __offload_vars_end[];
 
 const void *const __OFFLOAD_TABLE__[]
   __attribute__ ((__visibility__ ("hidden"))) =
@@ -73,8 +76,9 @@ const void *const __OFFLOAD_TABLE__[]
   &__offload_func_table, &__offload_funcs_end,
   &__offload_var_table, &__offload_vars_end
 };
+
+#else /* ! CRT_BEGIN && ! CRT_END && ! CRT_TABLE  */
+#error "One of CRT_BEGIN, CRT_END or CRT_TABLE must be defined."
 #endif
 
-#else /* ! CRT_BEGIN && ! CRT_END */
-#error "One of CRT_BEGIN or CRT_END must be defined."
 #endif