/* ex - Exception Handling (modified to fit into SimGrid from OSSP version) */
-/* Copyright (c) 2005-2006 Martin Quinson */
+/* Copyright (c) 2005, 2006, 2007 Martin Quinson */
/* Copyright (c) 2002-2004 Ralf S. Engelschall <rse@engelschall.com> */
/* Copyright (c) 2002-2004 The OSSP Project <http://www.ossp.org/> */
/* Copyright (c) 2002-2004 Cable & Wireless <http://www.cw.com/> */
#include "portable.h" /* execinfo when available */
#include "xbt/ex.h"
#include "xbt/module.h" /* xbt_binary_name */
-#include "xbt/ex_interface.h"
+#include "xbt/synchro.h" /* xbt_thread_self */
#include "gras/Virtu/virtu_interface.h" /* gras_os_myname */
+#include "xbt/ex_interface.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_ex,xbt,"Exception mecanism");
-
/* default __ex_ctx callback function */
ex_ctx_t *__xbt_ex_ctx_default(void) {
+ /* Don't scream: this is a default which is never used (so, yes,
+ there is one setjump container by running entity).
+
+ This default gets overriden in xbt/xbt_os_thread.c so that it works in
+ real life and in simulation when using threads to implement the simulation
+ processes (ie, with pthreads and on windows).
+
+ It also gets overriden in xbt/context.c when using ucontextes (as well as
+ in Java for now, but after the java overhaul, it will get cleaned out)
+ */
static ex_ctx_t ctx = XBT_CTX_INITIALIZER;
return &ctx;
}
+/* Change raw libc symbols to file names and line numbers */
+void xbt_ex_setup_backtrace(xbt_ex_t *e);
-/** \brief show the backtrace of the current point (lovely while debuging) */
-void xbt_backtrace_display(void) {
+void xbt_backtrace_current(xbt_ex_t *e) {
#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)
- xbt_ex_t e;
- int i;
+ e->used = backtrace((void**)e->bt,XBT_BACKTRACE_SIZE);
+ e->bt_strings = NULL;
+ xbt_ex_setup_backtrace(e);
+#endif
+}
- e.used = backtrace((void**)e.bt,XBT_BACKTRACE_SIZE);
- e.bt_strings = NULL;
- xbt_ex_setup_backtrace(&e);
- for (i=1; i<e.used; i++) /* no need to display "xbt_display_backtrace" */
- fprintf(stderr,"%s\n",e.bt_strings[i]);
+void xbt_backtrace_display(xbt_ex_t *e) {
+#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)
+ int i;
- e.msg=NULL;
- e.remote=0;
- xbt_ex_free(e);
+ if (e->used == 0) {
+ fprintf(stderr,"(backtrace not set)\n");
+ } else {
+ fprintf(stderr,"Backtrace (displayed in thread %p):\n",
+ (void*)xbt_thread_self());
+ for (i=1; i<e->used; i++) /* no need to display "xbt_display_backtrace" */
+ fprintf(stderr,"---> %s\n",e->bt_strings[i] +4);
+ }
+
+ /* don't fool xbt_ex_free with uninitialized msg field */
+ e->msg=NULL;
+ e->remote=0;
+ xbt_ex_free(*e);
#else
ERROR0("No backtrace on this arch");
#endif
}
+/** \brief show the backtrace of the current point (lovely while debuging) */
+void xbt_backtrace_display_current(void) {
+ xbt_ex_t e;
+ xbt_backtrace_current(&e);
+ xbt_backtrace_display(&e);
+}
+
+#ifndef WIN32
extern char **environ; /* the environment, as specified by the opengroup */
+#endif
void xbt_ex_setup_backtrace(xbt_ex_t *e) {
#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)
char *thrower=NULL;
if (e->remote)
- bprintf(" on host %s(%d)",e->host,e->pid);
+ thrower = bprintf(" on host %s(%d)",e->host,e->pid);
fprintf(stderr,
"** SimGrid: UNCAUGHT EXCEPTION received on %s(%d): category: %s; value: %d\n"
