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.

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/log.h b/lib/log.h
index 1f9f23cd..b8288298 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 *zlog_proto_names[];
 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);