targhooks.c (default_print_patchable_function_entry): Emit…

targhooks.c (default_print_patchable_function_entry): Emit __patchable_function_entries section with writable flags to allow...

	* targhooks.c (default_print_patchable_function_entry): Emit
	__patchable_function_entries section with writable flags to allow
	relocation resolution.

From-SVN: r270417

gcc/ChangeLog

+2019-04-10  Joao Moreira  <jmoreira@suse.de>
+
+	* targhooks.c (default_print_patchable_function_entry): Emit
+	__patchable_function_entries section with writable flags to allow
+	relocation resolution.
+
 2019-04-17  Jonny Grant  <jg@jguk.org>
 
         * collect2.c (main): Change gcc.gnu.org URL to HTTPS.

gcc/targhooks.c

@@ -1818,7 +1818,7 @@ default_print_patchable_function_entry (FILE *file,
       ASM_GENERATE_INTERNAL_LABEL (buf, "LPFE", patch_area_number);
 
       switch_to_section (get_section ("__patchable_function_entries",
-				      0, NULL));
+				      SECTION_WRITE | SECTION_RELRO, NULL));
       fputs (asm_op, file);
       assemble_name_raw (file, buf);
       fputc ('\n', file);