From 5a5732e52738b4f00995e705a170230c106885b6 Mon Sep 17 00:00:00 2001
From: Mark Wielaard <mjw@redhat.com>
Date: Sat, 11 Jul 2009 19:59:42 +0200
Subject: Add -O[0123s] gcc optimization flags for gcc pass 4 speedup.

* session.h (struct systemtap_session): Add gcc_flags string field.
* main.cxx (usage): Document -O[0123s].
  (main): Default gcc_flags to -O0. Add O:: to getopt_long. Handle case
  'O' to set gcc_flags.
* buildrun.cxx (compile_pass): Add gcc_flags to EXTRA_CFLAGS.
* stap1.in: Add -O[0123s] documentation.
* testsuite/systemtap.base/cache.exp: Add tests for -O[0123s].
---
 buildrun.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'buildrun.cxx')

diff --git a/buildrun.cxx b/buildrun.cxx
index ccf1ca15..b54a0534 100644
--- a/buildrun.cxx
+++ b/buildrun.cxx
@@ -187,7 +187,7 @@ compile_pass (systemtap_session& s)
   // if (s.keep_tmpdir)
   // o << "CFLAGS += -fverbose-asm -save-temps" << endl;
 
-  o << "EXTRA_CFLAGS += -freorder-blocks" << endl; // improve on -Os
+  o << "EXTRA_CFLAGS += " << s.gcc_flags << endl; // Add -O[0123s]
 
   // o << "CFLAGS += -fno-unit-at-a-time" << endl;
 
-- 
cgit