x86/cet: Properly output labels in property note section

Replace ASM_OUTPUT_LABEL with fprintf so that internal labels in property
note section are unchanged by -fleading-underscore.

gcc/

	PR target/85404
	* config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
	Replace ASM_OUTPUT_LABEL with fprintf.

gcc/testsuite/

	PR target/85404
	* gcc.target/i386/pr85404.c: New test.

From-SVN: r259498

gcc/ChangeLog

 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 
+	PR target/85404
+	* config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
+	Replace ASM_OUTPUT_LABEL with fprintf.
+
+2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR target/85417
 	* config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
 	Check flag_cf_protection instead of TARGET_IBT and TARGET_SHSTK.

gcc/config/i386/cet.c

@@ -57,20 +57,20 @@ file_end_indicate_exec_stack_and_cet (void)
       fprintf (asm_out_file, ASM_LONG " 4f - 1f\n");
       /* note type: NT_GNU_PROPERTY_TYPE_0.  */
       fprintf (asm_out_file, ASM_LONG " 5\n");
-      ASM_OUTPUT_LABEL (asm_out_file, "0");
+      fprintf (asm_out_file, "0:\n");
       /* vendor name: "GNU".  */
       fprintf (asm_out_file, STRING_ASM_OP " \"GNU\"\n");
-      ASM_OUTPUT_LABEL (asm_out_file, "1");
+      fprintf (asm_out_file, "1:\n");
       ASM_OUTPUT_ALIGN (asm_out_file, p2align);
       /* pr_type: GNU_PROPERTY_X86_FEATURE_1_AND.  */
       fprintf (asm_out_file, ASM_LONG " 0xc0000002\n");
       /* pr_datasz.  */\
       fprintf (asm_out_file, ASM_LONG " 3f - 2f\n");
-      ASM_OUTPUT_LABEL (asm_out_file, "2");
+      fprintf (asm_out_file, "2:\n");
       /* GNU_PROPERTY_X86_FEATURE_1_XXX.  */
       fprintf (asm_out_file, ASM_LONG " 0x%x\n", feature_1);
-      ASM_OUTPUT_LABEL (asm_out_file, "3");
+      fprintf (asm_out_file, "3:\n");
       ASM_OUTPUT_ALIGN (asm_out_file, p2align);
-      ASM_OUTPUT_LABEL (asm_out_file, "4");
+      fprintf (asm_out_file, "4:\n");
     }
 }

gcc/testsuite/ChangeLog

 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 
+	PR target/85404
+	* gcc.target/i386/pr85404.c: New test.
+
+2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR target/85417
 	* c-c++-common/attr-nocf-check-1.c: Compile with
 	-fcf-protection=none.

gcc/testsuite/gcc.target/i386/pr85404.c

+/* { dg-do assemble } */
+/* { dg-options "-fleading-underscore -mcet -fcf-protection" } */
+
+void func(void) __asm("_func");
+void _func(int x) {}
+void func(void) {}