2005-01-12 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* configure.ac: Test for header file <ucontext.h> (for use in
signal processing).
* sigevent.c: (trap_default_signals) Use the SA_SIGINFO flag to
pass additional siginfo_t and ucontext_t arguments to core_handler
and exit_handler.
(core_handler,exit_handler) Now invoked with 3 arguments (using
SA_SIGINFO). Pass additional info to zlog_signal.
(program_counter) New function to find program counter in ucontext_t,
needs to be enhanced to support more platforms (currently works only
on Linux/x86).
* log.h: Change the zlog_signal prototype to add new arguments
siginfo_t * and program_counter.
* log.c: (zlog_signal) Add new arguments siginfo and program_counter.
Include si_addr and program counter (if non-NULL) in message.
And remove #ifdef HAVE_GLIBC_BACKTRACE around hex_append, since
that is now used to render the si_addr and PC pointers.
diff --git a/lib/log.h b/lib/log.h
index 1f9f23c..b828829 100644
--- a/lib/log.h
+++ b/lib/log.h
@@ -1,5 +1,5 @@
/*
- * $Id: log.h,v 1.14 2004/12/07 15:39:32 ajs Exp $
+ * $Id: log.h,v 1.15 2005/01/12 17:27:27 ajs Exp $
*
* Zebra logging funcions.
* Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro
@@ -153,7 +153,8 @@
extern const char *safe_strerror(int errnum);
/* To be called when a fatal signal is caught. */
-extern void zlog_signal(int signo, const char *action);
+extern void zlog_signal(int signo, const char *action,
+ siginfo_t *siginfo, void *program_counter);
/* Log a backtrace. */
extern void zlog_backtrace(int priority);