#include "xbt/ex.h"
#include "xbt/str.h"
#include "xbt/module.h" /* xbt_binary_name */
+#include "xbt_modinter.h" /* backtrace initialization headers */
#include "xbt/synchro.h" /* xbt_thread_self */
#include "gras/Virtu/virtu_interface.h" /* gras_os_myname */
#include "xbt/ex_interface.h"
#undef HAVE_BACKTRACE
-#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)
+#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)
# define HAVE_BACKTRACE 1 /* Hello linux box */
#endif
-#if defined(WIN32) && defined(_M_IX86)
+#if defined(WIN32) && defined(_M_IX86) && !defined(__GNUC__)
# define HAVE_BACKTRACE 1 /* Hello x86 windows box */
-#endif
-
+#endif
+
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,
+ /* 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
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;
+ */
+ static ex_ctx_t ctx = XBT_CTX_INITIALIZER;
- return &ctx;
+ return &ctx;
}
/* Change raw libc symbols to file names and line numbers */
void xbt_ex_setup_backtrace(xbt_ex_t *e);
-void xbt_backtrace_current(xbt_ex_t *e) {
-#ifdef HAVE_BACKTRACE
- e->used = backtrace((void**)e->bt,XBT_BACKTRACE_SIZE);
- e->bt_strings = NULL;
+void xbt_backtrace_display(xbt_ex_t *e) {
xbt_ex_setup_backtrace(e);
-#endif
-}
-void xbt_backtrace_display(xbt_ex_t *e) {
#ifdef HAVE_BACKTRACE
- int i;
-
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);
+ fprintf(stderr,"(backtrace not set)\n");
+ } else {
+ int i;
+
+ 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
+#else
ERROR0("No backtrace on this arch");
#endif
#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)
# include "backtrace_linux.c"
-#elif (defined(WIN32) && defined (_M_IX86))
+#elif (defined(WIN32) && defined (_M_IX86)) && !defined(__GNUC__)
# include "backtrace_windows.c"
#else
-void xbt_ex_setup_backtrace(xbt_ex_t *e) {
-}
+# include "backtrace_dummy.c"
#endif
/** @brief shows an exception content and the associated stack if available */
thrower = bprintf(" on host %s(%d)",e->host,e->pid);
fprintf(stderr,
- "** SimGrid: UNCAUGHT EXCEPTION received on %s(%d): category: %s; value: %d\n"
- "** %s\n"
- "** Thrown by %s()%s\n",
- gras_os_myname(),(*xbt_getpid)(),
- xbt_ex_catname(e->category), e->value, e->msg,
- e->procname,thrower?thrower:" in this process");
+ "** SimGrid: UNCAUGHT EXCEPTION received on %s(%d): category: %s; value: %d\n"
+ "** %s\n"
+ "** Thrown by %s()%s\n",
+ gras_os_myname(),(*xbt_getpid)(),
+ xbt_ex_catname(e->category), e->value, e->msg,
+ e->procname,thrower?thrower:" in this process");
CRITICAL1("%s",e->msg);
if (thrower)
/* 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);
+ fprintf(stderr," at %s:%d:%s (no backtrace available on that arch)\n",
+ e->file,e->line,e->func);
#endif
xbt_ex_free(*e);
}
free(e.host);
}
- if (e.bt_strings) {
- for (i=0; i<e.used; i++)
- free((char*)e.bt_strings[i]);
- free((char **)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 */
const char * xbt_ex_catname(xbt_errcat_t cat) {
switch (cat) {
- case unknown_error: return "unknown_err";
- case arg_error: return "invalid_arg";
- case mismatch_error: return "mismatch";
- case not_found_error: return "not found";
- case system_error: return "system_err";
- case network_error: return "network_err";
- case timeout_error: return "timeout";
- case thread_error: return "thread_err";
- default: return "INVALID_ERR";
+ case unknown_error: return "unknown_err";
+ case arg_error: return "invalid_arg";
+ case mismatch_error: return "mismatch";
+ case not_found_error: return "not found";
+ case system_error: return "system_err";
+ case network_error: return "network_err";
+ case timeout_error: return "timeout";
+ case thread_error: return "thread_err";
+ default: return "INVALID_ERR";
}
}
XBT_TEST_SUITE("xbt_ex","Exception Handling");
XBT_TEST_UNIT("controlflow",test_controlflow, "basic nested control flow") {
- xbt_ex_t ex;
- volatile int n=1;
+ xbt_ex_t ex;
+ volatile int n=1;
- xbt_test_add0("basic nested control flow");
+ xbt_test_add0("basic nested control flow");
+ TRY {
+ if (n != 1)
+ xbt_test_fail1("M1: n=%d (!= 1)", n);
+ n++;
TRY {
- if (n != 1)
- xbt_test_fail1("M1: n=%d (!= 1)", n);
- n++;
- TRY {
- if (n != 2)
- xbt_test_fail1("M2: n=%d (!= 2)", n);
- n++;
- THROW0(unknown_error,0,"something");
- } CATCH (ex) {
- if (n != 3)
- 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);
+ if (n != 2)
+ xbt_test_fail1("M2: n=%d (!= 2)", n);
+ n++;
+ THROW0(unknown_error,0,"something");
+ } CATCH (ex) {
+ if (n != 3)
+ xbt_test_fail1("M3: n=%d (!= 3)", n);
+ n++;
+ xbt_ex_free(ex);
}
- CATCH(ex) {
- if (n != 7)
- xbt_test_fail1("M4: n=%d (!= 7)", 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++;
}
- if (n != 8)
- xbt_test_fail1("M5: n=%d (!= 8)", n);
+ xbt_test_fail1("MX: n=%d (shouldn't reach this point)", n);
+ }
+ CATCH(ex) {
+ if (n != 7)
+ xbt_test_fail1("M4: n=%d (!= 7)", n);
+ n++;
+ xbt_ex_free(ex);
+ }
+ if (n != 8)
+ xbt_test_fail1("M5: n=%d (!= 8)", n);
}
XBT_TEST_UNIT("value",test_value,"exception value passing") {
- xbt_ex_t ex;
+ xbt_ex_t ex;
- TRY {
- THROW0(unknown_error, 2, "toto");
- } CATCH(ex) {
- xbt_test_add0("exception value passing");
- if (ex.category != unknown_error)
- xbt_test_fail1("category=%d (!= 1)", ex.category);
- if (ex.value != 2)
- 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);
- }
+ TRY {
+ THROW0(unknown_error, 2, "toto");
+ } CATCH(ex) {
+ xbt_test_add0("exception value passing");
+ if (ex.category != unknown_error)
+ xbt_test_fail1("category=%d (!= 1)", ex.category);
+ if (ex.value != 2)
+ 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_TEST_UNIT("variables",test_variables,"variable value preservation") {
- xbt_ex_t ex;
- int r1, r2;
- volatile int v1, v2;
+ xbt_ex_t ex;
+ int r1, r2;
+ volatile int v1, v2;
- r1 = r2 = v1 = v2 = 1234;
- TRY {
- r2 = 5678;
- v2 = 5678;
- THROW0(unknown_error, 0, "toto");
- } CATCH(ex) {
- xbt_test_add0("variable preservation");
- if (r1 != 1234)
- xbt_test_fail1("r1=%d (!= 1234)", r1);
- if (v1 != 1234)
- xbt_test_fail1("v1=%d (!= 1234)", v1);
- /* r2 is allowed to be destroyed because not volatile */
- if (v2 != 5678)
- xbt_test_fail1("v2=%d (!= 5678)", v2);
- xbt_ex_free(ex);
- }
+ r1 = r2 = v1 = v2 = 1234;
+ TRY {
+ r2 = 5678;
+ v2 = 5678;
+ THROW0(unknown_error, 0, "toto");
+ } CATCH(ex) {
+ xbt_test_add0("variable preservation");
+ if (r1 != 1234)
+ xbt_test_fail1("r1=%d (!= 1234)", r1);
+ if (v1 != 1234)
+ xbt_test_fail1("v1=%d (!= 1234)", v1);
+ /* r2 is allowed to be destroyed because not volatile */
+ if (v2 != 5678)
+ xbt_test_fail1("v2=%d (!= 5678)", v2);
+ xbt_ex_free(ex);
+ }
}
XBT_TEST_UNIT("cleanup",test_cleanup,"cleanup handling") {
- xbt_ex_t ex;
- volatile int v1;
- int c;
+ xbt_ex_t ex;
+ volatile int v1;
+ int c;
- xbt_test_add0("cleanup handling");
+ xbt_test_add0("cleanup handling");
- v1 = 1234;
- c = 0;
- TRY {
- v1 = 5678;
- THROW0(1, 2, "blah");
- } CLEANUP {
- if (v1 != 5678)
- xbt_test_fail1("v1 = %d (!= 5678)", v1);
- c = 1;
- } CATCH(ex) {
- if (v1 != 5678)
- 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);
- }
- if (!c)
- xbt_test_fail0("xbt_ex_free not executed");
+ v1 = 1234;
+ c = 0;
+ TRY {
+ v1 = 5678;
+ THROW0(1, 2, "blah");
+ } CLEANUP {
+ if (v1 != 5678)
+ xbt_test_fail1("v1 = %d (!= 5678)", v1);
+ c = 1;
+ } CATCH(ex) {
+ if (v1 != 5678)
+ 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);
+ }
+ if (!c)
+ xbt_test_fail0("xbt_ex_free not executed");
}
/*
- * The following is the example included in the documentation. It's a good
+ * The following is the example included in the documentation. It's a good
* idea to check its syntax even if we don't try to run it.
* And actually, it allows to put comments in the code despite doxygen.
- */
+ */
static char *mallocex(int size) {
return NULL;
}
/* BAD_EXAMPLE */
TRY {
char *cp1, *cp2, *cp3;
-
+
cp1 = mallocex(SMALLAMOUNT);
globalcontext->first = cp1;
cp2 = mallocex(TOOBIG);
}
#endif
typedef struct {char *first;} global_context_t;
-
+
static void good_example(void) {
global_context_t *global_context=malloc(sizeof(global_context_t));
xbt_ex_t ex;
} CLEANUP { /*04*/
printf("cp3=%s", cp3 == NULL /*02*/ ? "" : cp3);
if (cp3 != NULL)
- free(cp3);
+ free(cp3);
if (cp2 != NULL)
- free(cp2);
+ free(cp2);
/*05 cp1 was given away */
} CATCH(ex) {
/*05 global context untouched */
