1 files changed, 30 insertions, 41 deletions

diff --git a/gas/macro.c b/gas/macro.c
index 20309d4..b272800 100644
--- a/gas/macro.c
+++ b/gas/macro.c
@@ -112,11 +112,13 @@ buffer_and_nest (const char *from, const char *to, sb *ptr,
     unsigned int line;
     char *linefile;
 
-    as_where_top (&line);
-    if (!flag_m68k_mri)
-      linefile = xasprintf ("\t.linefile %u .", line + 1);
+    const char *prefix = flag_m68k_mri ? "" : ".";
+    const char *file = as_where_top (&line);
+
+    if (file)
+      linefile = xasprintf ("\t%slinefile %u \"%s\"", prefix, line + 1, file);
     else
-      linefile = xasprintf ("\tlinefile %u .", line + 1);
+      linefile = xasprintf ("\t%slinefile %u .", prefix, line + 1);
     sb_add_string (ptr, linefile);
     xfree (linefile);
   }
@@ -290,24 +292,25 @@ getstring (size_t idx, sb *in, sb *acc)
 	{
 	  int nest = 0;
 	  idx++;
-	  while (idx < in->len
-		 && (in->ptr[idx] != '>' || nest))
+	  while (idx < in->len)
 	    {
-	      if (in->ptr[idx] == '!')
-		{
-		  idx++;
-		  sb_add_char (acc, in->ptr[idx++]);
-		}
-	      else
+	      if (in->ptr[idx] == '!' && idx + 1 < in->len)
+		idx++;
+	      else if (in->ptr[idx] == '>')
 		{
-		  if (in->ptr[idx] == '>')
-		    nest--;
-		  if (in->ptr[idx] == '<')
-		    nest++;
-		  sb_add_char (acc, in->ptr[idx++]);
+		  if (nest == 0)
+		    {
+		      idx++;
+		      break;
+		    }
+		  nest--;
 		}
+	      else if (in->ptr[idx] == '<')
+		nest++;
+
+	      sb_add_char (acc, in->ptr[idx]);
+	      idx++;
 	    }
-	  idx++;
 	}
       else if (in->ptr[idx] == '"' || in->ptr[idx] == '\'')
 	{
@@ -315,7 +318,6 @@ getstring (size_t idx, sb *in, sb *acc)
 	  int escaped = 0;
 
 	  idx++;
-
 	  while (idx < in->len)
 	    {
 	      if (in->ptr[idx - 1] == '\\')
@@ -323,32 +325,19 @@ getstring (size_t idx, sb *in, sb *acc)
 	      else
 		escaped = 0;
 
-	      if (flag_macro_alternate && in->ptr[idx] == '!')
+	      if (flag_macro_alternate
+		  && in->ptr[idx] == '!' && idx + 1 < in->len)
 		{
-		  idx ++;
-
-		  sb_add_char (acc, in->ptr[idx]);
-
-		  idx ++;
-		}
-	      else if (escaped && in->ptr[idx] == tchar)
-		{
-		  sb_add_char (acc, tchar);
-		  idx ++;
+		  idx++;
 		}
-	      else
+	      else if (!escaped && in->ptr[idx] == tchar)
 		{
-		  if (in->ptr[idx] == tchar)
-		    {
-		      idx ++;
-
-		      if (idx >= in->len || in->ptr[idx] != tchar)
-			break;
-		    }
-
-		  sb_add_char (acc, in->ptr[idx]);
-		  idx ++;
+		  idx++;
+		  if (idx >= in->len || in->ptr[idx] != tchar)
+		    break;
 		}
+	      sb_add_char (acc, in->ptr[idx]);
+	      idx++;
 	    }
 	}
     }