2004-11-26 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* log.c: (zlog_backtrace) New function to log a backtrace.
(zlog_backtrace_safe) Log a backtrace in an async-signal-safe way.
Unfortunately, this function does not support syslog logging yet.
(zlog_signal) Move backtrace code into separate function
zlog_backtrace_safe.
(_zlog_assert_failed) Call zlog_backtrace before aborting.
* log.h: Declare new functions zlog_backtrace and zlog_backtrace_safe.
* memory.c: (zerror) Call zlog_backtrace before aborting.
diff --git a/lib/log.h b/lib/log.h
index 1fd4fe0..0df75e7 100644
--- a/lib/log.h
+++ b/lib/log.h
@@ -125,4 +125,13 @@
/* To be called when a fatal signal is caught. */
extern void zlog_signal(int signo, const char *action);
+/* Log a backtrace. */
+extern void zlog_backtrace(int priority);
+
+/* Log a backtrace, but in an async-signal-safe way. Should not be
+ called unless the program is about to exit or abort, since it messes
+ up the state of zlog file pointers. This function needs to be enhanced
+ to support syslog logging. */
+extern void zlog_backtrace_safe(int priority);
+
#endif /* _ZEBRA_LOG_H */