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/configure.ac b/configure.ac
index 61a00d9..ff424e8 100755
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@
## Copyright (c) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
## Portions Copyright (c) 2003 Paul Jakma <paul@dishone.st>
##
-## $Id: configure.ac,v 1.86 2005/01/12 16:52:55 ajs Exp $
+## $Id: configure.ac,v 1.87 2005/01/12 17:27:27 ajs Exp $
AC_PREREQ(2.53)
AC_INIT(Quagga, 0.98.0, [http://bugzilla.quagga.net])
@@ -1107,6 +1107,11 @@
fi
AC_SUBST(LIBCAP)
+dnl -------------------
+dnl test for ucontext.h
+dnl -------------------
+AC_CHECK_HEADERS(ucontext.h)
+
dnl ---------------------------
dnl check for glibc 'backtrace'
dnl ---------------------------