#include "portable.h" /* execinfo when available */
#include "xbt/ex.h"
+#include "xbt/module.h" /* xbt_binary_name */
+#include "xbt/ex_interface.h"
#include "gras/Virtu/virtu_interface.h" /* gras_os_myname */
return &ctx;
}
+void xbt_ex_setup_backtrace(xbt_ex_t *e) {
+#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)
+ int i;
+ /* to get the backtrace from the libc */
+ char **backtrace = backtrace_symbols (e->bt, e->used);
+
+ /* To build the commandline of addr2line */
+ char *cmd = xbt_new(char,strlen(ADDR2LINE)+strlen(xbt_binary_name)+20*e->used);
+ char *curr=cmd;
+
+ /* to extract the addresses from the backtrace */
+ char **addrs=xbt_new(char*,e->used);
+ char buff[256],*p;
+
+ /* To read the output of addr2line */
+ FILE *pipe;
+ char line_func[1024],line_pos[1024];
+
+ /* build the commandline */
+ curr += sprintf(curr,"%s -f -e %s ",ADDR2LINE,xbt_binary_name);
+ for (i=0; i<e->used;i++) {
+ /* retrieve this address */
+ snprintf(buff,256,"%s",strchr(backtrace[i],'[')+1);
+ p=strchr(buff,']');
+ *p='\0';
+ addrs[i]=bprintf("%s",buff);
+
+ /* Add it to the command line args */
+ curr+=sprintf(curr,"%s ",addrs[i]);
+ }
+
+ /* parse the output and build a new backtrace */
+ e->bt_strings = xbt_new(char*,e->used);
+
+ pipe = popen(cmd, "r");
+ // xbt_assert(pipe);//,"Cannot fork addr2line to display the backtrace");
+ for (i=0; i<e->used; i++) {
+ fgets(line_func,1024,pipe);
+ line_func[strlen(line_func)-1]='\0';
+ fgets(line_pos,1024,pipe);
+ line_pos[strlen(line_pos)-1]='\0';
+
+ if (strcmp("??",line_func)) {
+ e->bt_strings[i] = bprintf("** At %s: %s (%s)", addrs[i], line_func,line_pos);
+ } else {
+ char *p=bprintf("%s",backtrace[i]);
+ char *pos=strrchr(p,' ');
+ *pos = '\0';
+ e->bt_strings[i] = bprintf("** At %s: ?? (%s)", addrs[i], p);
+ free(p);
+ }
+ free(addrs[i]);
+ }
+ free(addrs);
+ free(backtrace);
+ free(cmd);
+#endif
+}
+
/** @brief shows an exception content and the associated stack if available */
void xbt_ex_display(xbt_ex_t *e) {
fprintf(stderr,
"** SimGrid: UNCAUGHT EXCEPTION on %s: category: %s; value: %d\n"
"** %s\n"
- "** Thrown by %s%s%s at %s:%d:%s\n",
+ "** Thrown by %s%s%s",
gras_os_myname(),
xbt_ex_catname(e->category), e->value, e->msg,
- e->procname, (e->host?"@":""),(e->host?e->host:""),//localhost"),
- e->file,e->line,e->func);
-
-#ifdef HAVE_EXECINFO_H
- {
- int i;
+ e->procname, (e->host?"@":""),(e->host?e->host:""));
- fprintf(stderr,"** Backtrace:\n");
- if (!e->bt_strings)
- e->bt_strings = backtrace_symbols (e->bt, e->used);
+ if (!e->remote && !e->bt_strings)
+ xbt_ex_setup_backtrace(e);
- for (i = 0; i < e->used; i++)
- printf (" %s\n", e->bt_strings[i]);
- }
+#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)
+ /* We have everything to build neat backtraces */
+ {
+ int i;
+
+ fprintf(stderr,"\n");
+ for (i=0; i<e->used; i++)
+ fprintf(stderr,"%s\n",e->bt_strings[i]);
+
+ }
+#else
+ fprintf(stderr," at %s:%d:%s (no backtrace available on that arch)\n",
+ e->file,e->line,e->func);
#endif
+ xbt_ex_free(e);
}
ex_ctx_cb_t __xbt_ex_ctx = &__xbt_ex_ctx_default;
ex_term_cb_t __xbt_ex_terminate = &__xbt_ex_terminate_default;
-void xbt_ex_free(xbt_ex_t e) {
+void xbt_ex_free(xbt_ex_t *e) {
int i;
- if (e.msg) free(e.msg);
- free(e.procname);
- if (e.remote) {
- free(e.file);
- free(e.func);
- if (e.bt_strings) /* FIXME: should never be NULL... */
- for (i=0; i<e.used; i++)
- free(e.bt_strings[i]);
- free(e.bt_strings);
- e.bt_strings=NULL;
- free(e.host);
+ if (e->msg) free(e->msg);
+ if (e->remote) {
+ free(e->procname);
+ free(e->file);
+ free(e->func);
+ free(e->host);
}
- /* locally, only one chunk of memory is allocated by the libc */
- if (e.bt_strings)
- free(e.bt_strings);
+ if (e->bt_strings) {
+ for (i=0; i<e->used; i++)
+ free((char*)e->bt_strings[i]);
+ free((char **)e->bt_strings);
+ }
+ memset(e,0,sizeof(xbt_ex_t));
}
/** \brief returns a short name for the given exception category */
THROW0(unknown_error,0,"something");
} CATCH (ex) {
if (n != 3)
- xbt_test_fail1("M3: n=%d (!= 1)", n);
+ xbt_test_fail1("M3: n=%d (!= 3)", n);
+ n++;
+ xbt_ex_free(&ex);
+ }
+ n++;
+ TRY {
+ if (n != 5)
+ xbt_test_fail1("M2: n=%d (!= 5)", n);
+ n++;
+ THROW0(unknown_error,0,"something");
+ } CATCH (ex) {
+ if (n != 6)
+ xbt_test_fail1("M3: n=%d (!= 6)", n);
n++;
RETHROW;
+ n++;
}
xbt_test_fail1("MX: n=%d (shouldn't reach this point)", n);
}
CATCH(ex) {
- if (n != 4)
- xbt_test_fail1("M4: n=%d (!= 4)", n);
+ if (n != 7)
+ xbt_test_fail1("M4: n=%d (!= 7)", n);
n++;
- xbt_ex_free(ex);
+ xbt_ex_free(&ex);
}
- if (n != 5)
- xbt_test_fail1("M5: n=%d (!= 5)", n);
+ if (n != 8)
+ xbt_test_fail1("M5: n=%d (!= 8)", n);
}
XBT_TEST_UNIT("value",test_value,"exception value passing") {
xbt_test_fail1("value=%d (!= 2)", ex.value);
if (strcmp(ex.msg,"toto"))
xbt_test_fail1("message=%s (!= toto)", ex.msg);
- xbt_ex_free(ex);
+ xbt_ex_free(&ex);
}
}
/* r2 is allowed to be destroyed because not volatile */
if (v2 != 5678)
xbt_test_fail1("v2=%d (!= 5678)", v2);
- xbt_ex_free(ex);
+ xbt_ex_free(&ex);
}
}
xbt_test_fail1("v1 = %d (!= 5678)", v1);
if (!(ex.category == 1 && ex.value == 2 && !strcmp(ex.msg,"blah")))
xbt_test_fail0("unexpected exception contents");
- xbt_ex_free(ex);
+ xbt_ex_free(&ex);
}
if (!c)
xbt_test_fail0("xbt_ex_free not executed");
