re PR bootstrap/81033 (there are cases where ld64 is not able to determine…

re PR bootstrap/81033 (there are cases where ld64 is not able to determine correct atom boundaries from the output GCC currently produces)

2017-07-03  Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR target/81033
	* config/darwin.c (darwin_function_switched_text_sections):
	Replace DECL_NAME with DECL_ASSEMBLER_NAME, split assemble_name_raw
	in two pieces, and suppress the use of buf.

From-SVN: r249926

gcc/ChangeLog

+2017-07-03  Dominique d'Humieres  <dominiq@lps.ens.fr>
+
+	PR target/81033
+	* config/darwin.c (darwin_function_switched_text_sections):
+	Replace DECL_NAME with DECL_ASSEMBLER_NAME, split assemble_name_raw
+	in two pieces, and suppress the use of buf.
+
 2017-07-03  Nathan Sidwell  <nathan@acm.org>
 
 	* hash-table.h (hash_table_mod1): Fix indentation.

gcc/config/darwin.c

@@ -3683,11 +3683,9 @@ default_function_sections:
 void
 darwin_function_switched_text_sections (FILE *fp, tree decl, bool new_is_cold)
 {
-  char buf[128];
-  snprintf (buf, 128, "%s%s",new_is_cold?"__cold_sect_of_":"__hot_sect_of_",
-	    IDENTIFIER_POINTER (DECL_NAME (decl)));
   /* Make sure we pick up all the relevant quotes etc.  */
-  assemble_name_raw (fp, (const char *) buf);
+  assemble_name_raw (fp, new_is_cold?"__cold_sect_of_":"__hot_sect_of_");
+  assemble_name_raw (fp, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)));
   fputs (":\n", fp);
 }