daily update

[deliverable/binutils-gdb.git] / gas / stabs.c

diff --git a/gas/stabs.c b/gas/stabs.c
index cd5a705ff23ef209ea25c45a01bb773499341f8e..60b03c49941b3d6613945ee52dd5f94d1c8972ab 100644 (file)
--- a/gas/stabs.c
+++ b/gas/stabs.c
@@ -580,10 +580,9 @@ stabs_generate_asm_lineno ()
   unsigned int lineno;
   char *buf;
   char sym[30];
-
-  /* Let the world know that we are in the middle of generating a
-     piece of stabs line debugging information.  */
-  outputting_stabs_line_debug = 1;
+  /* Remember the last file/line and avoid duplicates. */
+  static unsigned int prev_lineno = -1;
+  static char *prev_file = NULL;
 
   /* Rather than try to do this in some efficient fashion, we just
      generate a string and then parse it again.  That lets us use the
@@ -594,6 +593,34 @@ stabs_generate_asm_lineno ()
 
   as_where (&file, &lineno);
 
+  /* Don't emit sequences of stabs for the same line. */
+  if (prev_file == NULL)
+    {
+      /* First time thru. */
+      prev_file = xstrdup (file);
+      prev_lineno = lineno;
+    }
+  else if (lineno == prev_lineno
+          && strcmp (file, prev_file) == 0)
+    {
+      /* Same file/line as last time. */
+      return;
+    }
+  else
+    {
+      /* Remember file/line for next time. */
+      prev_lineno = lineno;
+      if (strcmp (file, prev_file) != 0)
+       {
+         free (prev_file);
+         prev_file = xstrdup (file);
+       }
+    }
+
+  /* Let the world know that we are in the middle of generating a
+     piece of stabs line debugging information.  */
+  outputting_stabs_line_debug = 1;
+
   generate_asm_file (N_SOL, file);
 
   sprintf (sym, "%sL%d", FAKE_LABEL_NAME, label_count);