X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/85c342932c60954a7e1c9430742bfff2b28c31a8..6ce033605df0be7e58fc5644d9b082ca8bc982f9:/src/xbt/ex.c diff --git a/src/xbt/ex.c b/src/xbt/ex.c index 26d7d3d5eb..0a4e65ec40 100644 --- a/src/xbt/ex.c +++ b/src/xbt/ex.c @@ -1,6 +1,8 @@ /* ex - Exception Handling */ -/* Copyright (c) 2005-2010 The SimGrid team */ +/* Copyright (c) 2005-2015. The SimGrid Team. + * All rights reserved. */ + /* Copyright (c) 2002-2004 Ralf S. Engelschall */ /* Copyright (c) 2002-2004 The OSSP Project */ /* Copyright (c) 2002-2004 Cable & Wireless */ @@ -43,27 +45,20 @@ #include #include -#include "portable.h" /* execinfo when available */ +#include "src/internal_config.h" /* execinfo when available */ #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 "xbt/synchro_core.h" +#include "src/xbt_modinter.h" /* backtrace initialization headers */ -#include "gras/Virtu/virtu_interface.h" /* gras_os_myname */ -#include "xbt/ex_interface.h" +#include "src/xbt/ex_interface.h" +#include "simgrid/sg_config.h" /* Configuration mechanism of SimGrid */ -#undef HAVE_BACKTRACE -#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) -# define HAVE_BACKTRACE 1 /* Hello linux box */ -#endif +#include "simgrid/simix.h" /* SIMIX_process_self_get_name() */ -#if defined(_XBT_WIN32) && defined(_M_IX86) && !defined(__GNUC__) -# define HAVE_BACKTRACE 1 /* Hello x86 windows box */ -#endif +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_ex, xbt, "Exception mechanism"); - -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_ex, xbt, "Exception mecanism"); +XBT_EXPORT_NO_IMPORT(const xbt_running_ctx_t) __xbt_ex_ctx_initializer = XBT_RUNNING_CTX_INITIALIZER; /* default __ex_ctx callback function */ xbt_running_ctx_t *__xbt_ex_ctx_default(void) @@ -75,7 +70,7 @@ xbt_running_ctx_t *__xbt_ex_ctx_default(void) 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 + It also gets overriden in xbt/context.c when using ucontexts (as well as in Java for now, but after the java overhaul, it will get cleaned out) */ static xbt_running_ctx_t ctx = XBT_RUNNING_CTX_INITIALIZER; @@ -94,20 +89,15 @@ void xbt_backtrace_display(xbt_ex_t * e) if (e->used == 0) { 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_backtrace_display" */ + fprintf(stderr, "Backtrace (displayed in process %s):\n", SIMIX_process_self_get_name()); + for (int i = 1; i < e->used; i++) /* no need to display "xbt_backtrace_display" */ 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 - XBT_ERROR("No backtrace on this arch"); #endif } @@ -120,87 +110,94 @@ void xbt_backtrace_display_current(void) xbt_backtrace_display(&e); } -#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) -# include "backtrace_linux.c" -#elif (defined(_XBT_WIN32) && defined (_M_IX86)) && !defined(__GNUC__) -# include "backtrace_windows.c" +#if HAVE_BACKTRACE && HAVE_EXECINFO_H && HAVE_POPEN && defined(ADDR2LINE) +# include "src/xbt/backtrace_linux.c" #else -# include "backtrace_dummy.c" +# include "src/xbt/backtrace_dummy.c" #endif /** @brief shows an exception content and the associated stack if available */ void xbt_ex_display(xbt_ex_t * e) { char *thrower = NULL; + if (e->pid != xbt_getpid()) + thrower = bprintf(" on process %d",e->pid); - if (e->remote) - thrower = bprintf(" on host %s(%d)", e->host, e->pid); - - fprintf(stderr, - "** SimGrid: UNCAUGHT EXCEPTION received on %s(%d): category: %s; value: %d\n" + 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, + xbt_binary_name, xbt_getpid(), xbt_ex_catname(e->category), e->value, e->msg, e->procname, thrower ? thrower : " in this process"); XBT_CRITICAL("%s", e->msg); + xbt_free(thrower); + + if (xbt_initialized==0 || smx_cleaned) { + fprintf(stderr, "Ouch. SimGrid is not initialized yet, or already closing. No backtrace available.\n"); + return; /* Not started yet or already closing. Trying to generate a backtrace would probably fail */ + } - if (!e->remote && !e->bt_strings) + if (!e->bt_strings) xbt_ex_setup_backtrace(e); #ifdef HAVE_BACKTRACE - /* We have everything to build neat backtraces */ - { + if (e->used && e->bt_strings) { + /* We have everything to build neat backtraces */ int i; + int cutpath = 0; + TRY { // We don't want to have an exception while checking how to deal with the one we already have, do we? + cutpath = xbt_cfg_get_boolean("exception/cutpath"); + } CATCH_ANONYMOUS { } - if (!xbt_binary_name) { - fprintf(stderr, "variable 'xbt_binary_name' set to NULL. Cannot compute the backtrace\n"); - return; - } 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); + for (i = 0; i < e->used; i++) { + + if (cutpath) { + char* p = e->bt_strings[i]; + xbt_str_rtrim(p, ":0123456789"); + char* filename = strrchr(p, '/')+1; + char* end_of_message = strrchr(p, ' '); + + int length = strlen(p)-strlen(end_of_message); + char* dest = malloc(length); + + memcpy(dest, &p[0], length); + dest[length] = 0; + + fprintf(stderr, "%s %s\n", dest, filename); + + free(dest); + } + else { + fprintf(stderr, "%s\n", e->bt_strings[i]); + } + } + } else #endif + fprintf(stderr, "\n" + "** In %s() at %s:%d\n" + "** (no backtrace available)\n", e->func, e->file, e->line); } - /* default __ex_terminate callback function */ void __xbt_ex_terminate_default(xbt_ex_t * e) { xbt_ex_display(e); - - abort(); + xbt_abort(); } /* the externally visible API */ XBT_EXPORT_NO_IMPORT(xbt_running_ctx_fetcher_t) __xbt_running_ctx_fetch = &__xbt_ex_ctx_default; -XBT_EXPORT_NO_IMPORT(ex_term_cb_t) __xbt_ex_terminate = - &__xbt_ex_terminate_default; - +XBT_EXPORT_NO_IMPORT(ex_term_cb_t) __xbt_ex_terminate = &__xbt_ex_terminate_default; void xbt_ex_free(xbt_ex_t e) { - int i; - free(e.msg); - if (e.remote) { - free(e.procname); - free(e.file); - free(e.func); - free(e.host); - } if (e.bt_strings) { - for (i = 0; i < e.used; i++) + for (int i = 0; i < e.used; i++) free(e.bt_strings[i]); free(e.bt_strings); } - /* memset(e,0,sizeof(xbt_ex_t)); */ } /** \brief returns a short name for the given exception category */ @@ -208,27 +205,37 @@ const char *xbt_ex_catname(xbt_errcat_t cat) { switch (cat) { case unknown_error: - return "unknown_err"; + return "unknown error"; case arg_error: - return "invalid_arg"; + return "invalid argument"; + case bound_error: + return "out of bounds"; case mismatch_error: return "mismatch"; case not_found_error: return "not found"; case system_error: - return "system_err"; + return "system error"; case network_error: - return "network_err"; + return "network error"; case timeout_error: return "timeout"; + case cancel_error: + return "action canceled"; case thread_error: - return "thread_err"; - default: - return "INVALID_ERR"; + return "thread error"; + case host_error: + return "host failed"; + case tracing_error: + return "tracing error"; + case io_error: + return "io error"; + case vm_error: + return "vm error"; } + return "INVALID ERROR"; } - #ifdef SIMGRID_TEST #include #include "xbt/ex.h" @@ -251,8 +258,7 @@ XBT_TEST_UNIT("controlflow", test_controlflow, "basic nested control flow") xbt_test_fail("M2: n=%d (!= 2)", n); n++; THROWF(unknown_error, 0, "something"); - } - CATCH(ex) { + } CATCH(ex) { if (n != 3) xbt_test_fail("M3: n=%d (!= 3)", n); n++; @@ -264,8 +270,7 @@ XBT_TEST_UNIT("controlflow", test_controlflow, "basic nested control flow") xbt_test_fail("M2: n=%d (!= 5)", n); n++; THROWF(unknown_error, 0, "something"); - } - CATCH_ANONYMOUS { + } CATCH_ANONYMOUS { if (n != 6) xbt_test_fail("M3: n=%d (!= 6)", n); n++; @@ -273,8 +278,7 @@ XBT_TEST_UNIT("controlflow", test_controlflow, "basic nested control flow") n++; } xbt_test_fail("MX: n=%d (shouldn't reach this point)", n); - } - CATCH(ex) { + } CATCH(ex) { if (n != 7) xbt_test_fail("M4: n=%d (!= 7)", n); n++; @@ -290,11 +294,10 @@ XBT_TEST_UNIT("value", test_value, "exception value passing") TRY { THROWF(unknown_error, 2, "toto"); - } - CATCH(ex) { + } CATCH(ex) { xbt_test_add("exception value passing"); if (ex.category != unknown_error) - xbt_test_fail("category=%d (!= 1)", ex.category); + xbt_test_fail("category=%d (!= 1)", (int)ex.category); if (ex.value != 2) xbt_test_fail("value=%d (!= 2)", ex.value); if (strcmp(ex.msg, "toto")) @@ -306,16 +309,17 @@ XBT_TEST_UNIT("value", test_value, "exception value passing") XBT_TEST_UNIT("variables", test_variables, "variable value preservation") { xbt_ex_t ex; - int r1, r2; - volatile int v1, v2; + int r1; + int XBT_ATTRIB_UNUSED r2; + int v1; + volatile int v2; r1 = r2 = v1 = v2 = 1234; TRY { r2 = 5678; v2 = 5678; THROWF(unknown_error, 0, "toto"); - } - CATCH(ex) { + } CATCH(ex) { xbt_test_add("variable preservation"); if (r1 != 1234) xbt_test_fail("r1=%d (!= 1234)", r1); @@ -346,8 +350,7 @@ XBT_TEST_UNIT("cleanup", test_cleanup, "cleanup handling") if (v1 != 5678) xbt_test_fail("v1 = %d (!= 5678)", v1); c = 1; - } - CATCH(ex) { + } CATCH(ex) { if (v1 != 5678) xbt_test_fail("v1 = %d (!= 5678)", v1); if (!(ex.category == 1 && ex.value == 2 && !strcmp(ex.msg, "blah"))) @@ -358,7 +361,6 @@ XBT_TEST_UNIT("cleanup", test_cleanup, "cleanup handling") xbt_test_fail("xbt_ex_free not executed"); } - /* * 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. @@ -372,44 +374,13 @@ static char *mallocex(int size) #define SMALLAMOUNT 10 #define TOOBIG 100000000 -#if 0 /* this contains syntax errors, actually */ -static void bad_example(void) -{ - struct { - char *first; - } *globalcontext; - ex_t ex; - - /* BAD_EXAMPLE */ - TRY { - char *cp1, *cp2, *cp3; - - cp1 = mallocex(SMALLAMOUNT); - globalcontext->first = cp1; - cp2 = mallocex(TOOBIG); - cp3 = mallocex(SMALLAMOUNT); - strcpy(cp1, "foo"); - strcpy(cp2, "bar"); - } - TRY_CLEANUP { - free(cp3); - free(cp2); - free(cp1); - } - CATCH_ANONYMOUS { - printf("cp3=%s", cp3); - RETHROW; - } - /* end_of_bad_example */ -} -#endif typedef struct { char *first; } global_context_t; static void good_example(void) { - global_context_t *global_context = malloc(sizeof(global_context_t)); + global_context_t *global_context = xbt_malloc(sizeof(global_context_t)); /* GOOD_EXAMPLE */ { /*01 */