diff options
Diffstat (limited to 'source3/lib/util.c')
| -rw-r--r-- | source3/lib/util.c | 65 |
1 files changed, 30 insertions, 35 deletions
diff --git a/source3/lib/util.c b/source3/lib/util.c index 0b831ea335..0fbe4a13d3 100644 --- a/source3/lib/util.c +++ b/source3/lib/util.c @@ -1545,19 +1545,10 @@ gid_t nametogid(const char *name) Something really nasty happened - panic ! ********************************************************************/ -#ifdef HAVE_LIBEXC_H -#include <libexc.h> -#endif - -static void smb_panic2(const char *why, BOOL decrement_pid_count ) +void smb_panic(const char *const why) { char *cmd; int result; -#ifdef HAVE_BACKTRACE_SYMBOLS - void *backtrace_stack[BACKTRACE_STACK_SIZE]; - size_t backtrace_size; - char **backtrace_strings; -#endif #ifdef DEVELOPER { @@ -1570,9 +1561,12 @@ static void smb_panic2(const char *why, BOOL decrement_pid_count ) } #endif + DEBUG(0,("PANIC (pid %llu): %s\n", + (unsigned long long)sys_getpid(), why)); + log_stack_trace(); + /* only smbd needs to decrement the smbd counter in connections.tdb */ - if ( decrement_pid_count ) - decrement_smbd_process_count(); + decrement_smbd_process_count(); cmd = lp_panic_action(); if (cmd && *cmd) { @@ -1586,9 +1580,27 @@ static void smb_panic2(const char *why, BOOL decrement_pid_count ) DEBUG(0, ("smb_panic(): action returned status %d\n", WEXITSTATUS(result))); } - DEBUG(0,("PANIC: %s\n", why)); + dump_core(); +} + +/******************************************************************* + Print a backtrace of the stack to the debug log. This function + DELIBERATELY LEAKS MEMORY. The expectation is that you should + exit shortly after calling it. +********************************************************************/ + +#ifdef HAVE_LIBEXC_H +#include <libexc.h> +#endif + +void log_stack_trace(void) +{ #ifdef HAVE_BACKTRACE_SYMBOLS + void *backtrace_stack[BACKTRACE_STACK_SIZE]; + size_t backtrace_size; + char **backtrace_strings; + /* get the backtrace (stack frames) */ backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE); backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size); @@ -1607,16 +1619,14 @@ static void smb_panic2(const char *why, BOOL decrement_pid_count ) #elif HAVE_LIBEXC -#define NAMESIZE 32 /* Arbitrary */ - /* The IRIX libexc library provides an API for unwinding the stack. See * libexc(3) for details. Apparantly trace_back_stack leaks memory, but * since we are about to abort anyway, it hardly matters. - * - * Note that if we paniced due to a SIGSEGV or SIGBUS (or similar) this - * will fail with a nasty message upon failing to open the /proc entry. */ { + +#define NAMESIZE 32 /* Arbitrary */ + __uint64_t addrs[BACKTRACE_STACK_SIZE]; char * names[BACKTRACE_STACK_SIZE]; char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE]; @@ -1646,24 +1656,9 @@ static void smb_panic2(const char *why, BOOL decrement_pid_count ) } } #undef NAMESIZE +#else + DEBUG(0, ("unable to produce a stack trace on this platform\n")); #endif - - dbgflush(); -#ifdef SIGABRT - CatchSignal(SIGABRT,SIGNAL_CAST SIG_DFL); -#endif - abort(); -} - -/******************************************************************* - wrapper for smb_panic2() -********************************************************************/ - - void smb_panic( const char *why ) -{ - smb_panic2( why, True ); - /* Notreached. */ - abort(); } /******************************************************************* |