Fix on hppa: there is no working backtrace() there

[simgrid.git] / src / xbt / ex.c

diff --git a/src/xbt/ex.c b/src/xbt/ex.c
index f5a7969..48ab1de 100644 (file)
--- a/src/xbt/ex.c
+++ b/src/xbt/ex.c
@@ -72,7 +72,11 @@ void xbt_ex_setup_backtrace(xbt_ex_t *e)  {
 
   /* size (in char) of pointers on this arch */
   int addr_len=0;
-  
+
+  /* Some arches only have stubs of backtrace, no implementation (hppa comes to mind) */
+  if (!e->used)
+     return;
+   
   /* build the commandline */
   curr += sprintf(curr,"%s -f -e %s ",ADDR2LINE,xbt_binary_name);
   for (i=0; i<e->used;i++) {
@@ -151,7 +155,7 @@ void xbt_ex_setup_backtrace(xbt_ex_t *e)  {
       free(maps_name);
 
       if (!found) {
-       WARN0("Problem while reading the maps file");
+       VERB0("Problem while reading the maps file. Following backtrace will be mangled.");
        e->bt_strings[i] = bprintf("**   In ?? (%s)", backtrace[i]);
        continue;
       }
@@ -454,9 +458,10 @@ static void bad_example(void) {
   /* end_of_bad_example */
 }
 #endif
-
+typedef struct {char *first;} global_context_t;
+   
 static void good_example(void) {
-  struct {char*first;} *globalcontext;
+  global_context_t *global_context=malloc(sizeof(global_context_t));
   xbt_ex_t ex;
 
   /* GOOD_EXAMPLE */
@@ -466,7 +471,7 @@ static void good_example(void) {
     char * volatile /*03*/ cp3 = NULL /*02*/;
     TRY {
       cp1 = mallocex(SMALLAMOUNT);
-      globalcontext->first = cp1;
+      global_context->first = cp1;
       cp1 = NULL /*05 give away*/;
       cp2 = mallocex(TOOBIG);
       cp3 = mallocex(SMALLAMOUNT);