opts.c (common_handle_option): Handle new option -fdbg-cnt-list.

2007-06-12  Seongbae Park  <seongbae.park@gmail.com>

	* opts.c (common_handle_option): Handle new option -fdbg-cnt-list.
	* dbgcnt.c (dbg_cnt_set_limit_by_name): Return value
	to indicate an error.
	(dbg_cnt_process_single_pair, dbg_cnt_list_all_counters): New functions
	(dbg_cnt_process_opt): Print an error on a bad argument.
	* dbgcnt.h (dbg_cnt_list_all_counters): New function declaration.
	* common.opt (-fdbg-cnt-list): New.
	* doc/invoke.texi (-fdbg-cnt-list,-fdbg-cnt=): New.

From-SVN: r125657

1 files changed, 52 insertions, 14 deletions

diff --git a/gcc/dbgcnt.c b/gcc/dbgcnt.c
index df02111..660428e 100644
--- a/gcc/dbgcnt.c
+++ b/gcc/dbgcnt.c
@@ -23,6 +23,7 @@ See dbgcnt.def for usage information.  */
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
+#include "errors.h"
 
 #include "dbgcnt.h"
 
@@ -70,7 +71,7 @@ dbg_cnt_set_limit_by_index (enum debug_counter index, int value)
   fprintf (stderr, "dbg_cnt '%s' set to %d\n", map[index].name, value);
 }
 
-static void
+static bool
 dbg_cnt_set_limit_by_name (const char *name, int len, int value)
 {
   int i;
@@ -79,29 +80,66 @@ dbg_cnt_set_limit_by_name (const char *name, int len, int value)
       break;
 
   if (i < 0)
-    return;
+    return false;
 
   dbg_cnt_set_limit_by_index (i, value);
+  return true;
 }
 
-void
-dbg_cnt_process_opt (const char *arg)
+
+/* Process a single "name:value" pair.
+   Returns NULL if there's no valid pair is found.
+   Otherwise returns a pointer to the end of the pair. */
+
+static const char *
+dbg_cnt_process_single_pair (const char *arg)
 {
    char *colon = strchr (arg, ':');
-   char *comma;
+   char *endptr = NULL;
+   int value;
    
    if (colon == NULL)
-     return;
+     return NULL;
+
+   value = strtol (colon + 1, &endptr, 10);
 
-   dbg_cnt_set_limit_by_name (arg, colon - arg, atoi (colon + 1));
+   if (endptr != NULL && endptr != colon + 1
+       && dbg_cnt_set_limit_by_name (arg, colon - arg, value))
+     return endptr;
+   
+   return NULL;
+}
 
-   comma = strchr (colon + 1, ',');
-   while (comma)
+void
+dbg_cnt_process_opt (const char *arg)
+{
+   const char *start = arg;
+   const char *next;
+   do {
+     next = dbg_cnt_process_single_pair (arg);
+     if (next == NULL)
+       break;
+   } while (*next == ',' && (arg = next + 1));
+
+   if (next == NULL || *next != 0)
      {
-       colon = strchr (comma + 1, ':');
-       if (colon == NULL || !(colon[1] >= '0' && colon[1] <= '9'))
-         return;
-       dbg_cnt_set_limit_by_name (comma + 1, colon - (comma + 1), atoi (colon + 1));
-       comma = strchr (colon + 1, ',');
+       char *buffer = alloca (arg - start + 2);
+       sprintf (buffer, "%*c", (int)(1 + (arg - start)), '^');
+       error ("Can not find a valid counter:value pair:");
+       error ("-fdbg-cnt=%s", start);
+       error ("          %s", buffer);
      }
 }
+
+/* Print name, limit and count of all counters.   */
+
+void dbg_cnt_list_all_counters (void)
+{
+  int i;
+  printf ("  %-30s %-5s %-5s\n", "counter name",  "limit", "value");
+  printf ("----------------------------------------------\n");
+  for (i = 0; i < debug_counter_number_of_counters; i++)
+    printf ("  %-30s %5d %5u\n",
+            map[i].name, limit[map[i].counter], count[map[i].counter]);
+  printf ("\n");
+}