gas: multi-byte warning adjustments

First input_scrub_next_buffer()'s invocation was wrong, leading to input
only being checked from the last newline till the end of the current
buffer. Correcting the invocation, however, leads to duplicate checking
unless -f (or the #NO_APP equivalent thereof) is in effect. Move the
invocation to input_file_give_next_buffer(), to restrict it accordingly.

Then, when macros contain multi-byte characters, warning about them
again in every expansion isn't useful. Suppress such warnings from
sb_scrub_and_add_sb().

1 files changed, 3 insertions, 2 deletions

diff --git a/gas/app.c b/gas/app.c
index 955de0f..b268b66 100644
--- a/gas/app.c
+++ b/gas/app.c
@@ -406,7 +406,8 @@ scan_for_multibyte_characters (const unsigned char *  start,
    This is the way the old code used to work.  */
 
 size_t
-do_scrub_chars (size_t (*get) (char *, size_t), char *tostart, size_t tolen)
+do_scrub_chars (size_t (*get) (char *, size_t), char *tostart, size_t tolen,
+		bool check_multibyte)
 {
   char *to = tostart;
   char *toend = tostart + tolen;
@@ -510,7 +511,7 @@ do_scrub_chars (size_t (*get) (char *, size_t), char *tostart, size_t tolen)
       from = input_buffer;
       fromend = from + fromlen;
 
-      if (multibyte_handling == multibyte_warn)
+      if (check_multibyte)
 	(void) scan_for_multibyte_characters ((const unsigned char *) from,
 					      (const unsigned char* ) fromend,
 					      true /* Generate warnings.  */);