2006-01-03 Frank Ch. Eigler <fche@redhat.com>

	PR 1144, 1379
	* tapsets.cxx (emit_probe_prologue, _epilogue): New routines.
	Call from existing derived_probe spots.  Implement soft errors in
	epilogue code.  Implement reentrancy detection in prologue code.
	(dwarf_derived_probe::emit_deregistration): Add kprobes layer
	"nmissed" to skipped_count.
	* translate.cxx (varlock): Use nsleep(TRYLOCKDELAY) in lock
	contention loop.
	(emit_module_exit): Report number of soft errors and skipped probes.
	(emit_function, _probe): Add __restrict__ marker to context pointer.
	(translate_pass): Define new MAXTRYLOCK, TRYLOCKDELAY, MAXERRORS,
	MAXSKIPPED parameters.
	* tapset/logging.stp (error): Don't stp_error, just set context state.
	* stap.1.in, stapfuncs.5.in: Document soft errors.
	* elaborate.h: Corresponding changes.

2006-01-03  Frank Ch. Eigler  <fche@redhat.com>

	* io.c (_stp_softerror): New function.

2006-01-03  Frank Ch. Eigler  <fche@redhat.com>

	* systemtap.base/timers.exp: Extend the test run duration.
	Accept skipped probe warnings at shutdown.

1 files changed, 20 insertions, 1 deletions

diff --git a/runtime/io.c b/runtime/io.c
index cf178951..b72590f3 100644
--- a/runtime/io.c
+++ b/runtime/io.c
@@ -1,6 +1,6 @@
 /* -*- linux-c -*- 
  * I/O for printing warnings, errors and debug messages
- * Copyright (C) 2005 Red Hat Inc.
+ * Copyright (C) 2005, 2006 Red Hat Inc.
  *
  * This file is part of systemtap, and is free software.  You can
  * redistribute it and/or modify it under the terms of the GNU General
@@ -138,6 +138,25 @@ void _stp_error (const char *fmt, ...)
 	_stp_exit();
 }
 
+
+/** Prints error message.
+ * This function sends an error message immediately to stpd. It
+ * will also be sent over the bulk transport (relayfs) if it is
+ * being used. If the last character is not a newline, then one 
+ * is added. 
+ *
+ * @param fmt A variable number of args.
+ * @sa _stp_error
+ */
+void _stp_softerror (const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	_stp_vlog (ERROR, NULL, 0, fmt, args);
+	va_end(args);
+}
+
+
 static void _stp_dbug (char *func, int line, const char *fmt, ...)
 {
 	va_list args;