gnu-user.h (TARGET_CAN_SPLIT_STACK): Define only when HAVE_GAS_CFI_PERSONALITY_DIRECTIVE is set.

	* config/i386/gnu-user.h (TARGET_CAN_SPLIT_STACK): Define only
	when HAVE_GAS_CFI_PERSONALITY_DIRECTIVE is set.
	* config/i386/gnu-user64.h (TARGET_CAN_SPLIT_STACK): Ditto.

From-SVN: r195895

3 files changed, 35 insertions, 20 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 513a794..c0e9efb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,22 +1,29 @@
-2013-02-08  Edgar E. Iglesias <edgar.iglesias@gmail.com>
-
-	* config.gcc (microblaze*-linux*): Add TARGET_BIG_ENDIAN_DEFAULT
-	(microblaze*-*-elf): Likewise
-	* config/microblaze/linux.h: Add -mbig-endian / -mlittle-endian to 
-	LINK_SPEC
-	* config/microblaze/microblaze-c.c: Add builtin defines for _LITTLE_ENDIAN 
-	and _BIG_ENDIAN
-	* config/microblaze/microblaze.h: Add TARGET_ENDIAN_DEFAULT and add to 
-	TARGET_DEFAULT flags.
+2013-02-08  Uros Bizjak  <ubizjak@gmail.com>
+
+	* config/i386/gnu-user.h (TARGET_CAN_SPLIT_STACK): Define only
+	when HAVE_GAS_CFI_PERSONALITY_DIRECTIVE is set.
+	* config/i386/gnu-user64.h (TARGET_CAN_SPLIT_STACK): Ditto.
+
+2013-02-08  Edgar E. Iglesias  <edgar.iglesias@gmail.com>
+
+	* config.gcc (microblaze*-linux*): Add TARGET_BIG_ENDIAN_DEFAULT.
+	(microblaze*-*-elf): Likewise.
+	* config/microblaze/linux.h: Add -mbig-endian / -mlittle-endian to
+	LINK_SPEC.
+	* config/microblaze/microblaze-c.c: Add builtin defines for
+	_LITTLE_ENDIAN and _BIG_ENDIAN.
+	* config/microblaze/microblaze.h: Add TARGET_ENDIAN_DEFAULT and
+	add to TARGET_DEFAULT flags.
 	Expand ASM_SPEC and LINK_SPEC.
-	Update BYTES_BIG_ENDIAN and WORDS_BIG_ENDIAN
-	* config/microblaze/microblaze.md: Update extendsidi2 and movdi_internal 
-	instructions to use low-order / high-order reg print_operands
-	* config/microblaze/microblaze.opt: Add mbig-endian and mlittle-endian 
-	options and inversemask / mask of LITTLE_ENDIAN
-	* config/microblaze/t-microblaze: Expand multilib options to include mlittle-
-	endian (le) and update exceptions patterns
-	
+	Update BYTES_BIG_ENDIAN and WORDS_BIG_ENDIAN.
+	* config/microblaze/microblaze.md: Update extendsidi2 and
+	movdi_internal instructions to use low-order / high-order reg
+	print_operands.
+	* config/microblaze/microblaze.opt: Add mbig-endian and mlittle-endian
+	options and inversemask / mask of LITTLE_ENDIAN.
+	* config/microblaze/t-microblaze: Expand multilib options to
+	include mlittle-endian (le) and update exceptions patterns.
+
 2013-02-08  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/56195
diff --git a/gcc/config/i386/gnu-user.h b/gcc/config/i386/gnu-user.h
index 88f5f37..c93d975 100644
--- a/gcc/config/i386/gnu-user.h
+++ b/gcc/config/i386/gnu-user.h
@@ -154,7 +154,11 @@ along with GCC; see the file COPYING3.  If not see
 /* i386 glibc provides __stack_chk_guard in %gs:0x14.  */
 #define TARGET_THREAD_SSP_OFFSET	0x14
 
-/* We steal the last transactional memory word.  */
+/* We only build the -fsplit-stack support in libgcc if the
+   assembler has full support for the CFI directives.  */
+#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE
 #define TARGET_CAN_SPLIT_STACK
+#endif
+/* We steal the last transactional memory word.  */
 #define TARGET_THREAD_SPLIT_STACK_OFFSET 0x30
 #endif
diff --git a/gcc/config/i386/gnu-user64.h b/gcc/config/i386/gnu-user64.h
index 2963db08..952bb5b 100644
--- a/gcc/config/i386/gnu-user64.h
+++ b/gcc/config/i386/gnu-user64.h
@@ -85,8 +85,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define TARGET_THREAD_SSP_OFFSET \
   (TARGET_64BIT ? (TARGET_X32 ? 0x18 : 0x28) : 0x14)
 
-/* We steal the last transactional memory word.  */
+/* We only build the -fsplit-stack support in libgcc if the
+   assembler has full support for the CFI directives.  */
+#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE
 #define TARGET_CAN_SPLIT_STACK
+#endif
+/* We steal the last transactional memory word.  */
 #define TARGET_THREAD_SPLIT_STACK_OFFSET \
   (TARGET_64BIT ? (TARGET_X32 ? 0x40 : 0x70) : 0x30)
 #endif