From a9e8f7e0533811be2cd7c9a88d9058da8caa1d11 Mon Sep 17 00:00:00 2001
From: fche <fche>
Date: Sat, 6 Oct 2007 02:42:29 +0000
Subject: PR1119: unused variable elision warnings

2007-10-05  Frank Ch. Eigler  <fche@elastic.org>

	PR 1119
	* elaborate.cxx (semantic_pass_opt[12]): Warn on elided
	variables/functions in user script.
	* session.h (suppress_warnings): New field.  Change
	"timing" to plain old bool.
	* main.cxx (main): Configure warnings on by default.
	* stap.1.in: Document this.

	PR 1119.
	* systemtap.base/warnings.*: New test.

	* futexes.stp, sig_by_proc.stp, small_demos/rwtiming.stp: Fix elision
	warnings.
---
 main.cxx | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

(limited to 'main.cxx')

diff --git a/main.cxx b/main.cxx
index 09435fad..7d4b8133 100644
--- a/main.cxx
+++ b/main.cxx
@@ -71,6 +71,7 @@ usage (systemtap_session& s, int exitcode)
     << "   -V         show version" << endl
     << "   -k         keep temporary directory" << endl
     << "   -u         unoptimized translation" << (s.unoptimized ? " [set]" : "") << endl
+    << "   -w         suppress warnings" << (s.suppress_warnings ? " [set]" : "") << endl
     << "   -g         guru mode" << (s.guru_mode ? " [set]" : "") << endl
     << "   -P         prologue-searching for function probes" 
     << (s.prologue_searching ? " [set]" : "") << endl
@@ -200,10 +201,11 @@ main (int argc, char * const argv [])
   s.kernel_release = string (buf.release);
   s.architecture = string (buf.machine);
   s.verbose = 0;
-  s.timing = 0;
+  s.timing = false;
   s.guru_mode = false;
   s.bulk_mode = false;
   s.unoptimized = false;
+  s.suppress_warnings = false;
 
 #ifdef ENABLE_PROLOGUES
   s.prologue_searching = true;
@@ -273,8 +275,8 @@ main (int argc, char * const argv [])
 
   while (true)
     {
-      // NB: also see find_hash(), help(), switch stmt below, stap.1 man page
-      int grc = getopt (argc, argv, "hVMvtp:I:e:o:R:r:m:kgPc:x:D:bs:uq");
+      // NB: also see find_hash(), usage(), switch stmt below, stap.1 man page
+      int grc = getopt (argc, argv, "hVMvtp:I:e:o:R:r:m:kgPc:x:D:bs:uqw");
       if (grc < 0)
         break;
       switch (grc)
@@ -292,7 +294,11 @@ main (int argc, char * const argv [])
 	  break;
 
         case 't':
-	  s.timing ++;
+	  s.timing = true;
+	  break;
+
+        case 'w':
+	  s.suppress_warnings = true;
 	  break;
 
         case 'p':
-- 
cgit