From 53b6e275061c50769467924ac0737d585e667edd Mon Sep 17 00:00:00 2001
From: Martin Bligh <mbligh@mongodb.com>
Date: Mon, 29 Jun 2015 10:14:24 -0400
Subject: SERVER-10512: Add -fno-omit-frame-pointer by default

Performance overhead is so small it's not measurable, previous microbenchmarks indicate around 1% for intensive workloads.
In return we get the ability to use perf profiling and much improved debugability
---
 SConstruct | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'SConstruct')

diff --git a/SConstruct b/SConstruct
index bc0904be4b1..36726978589 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1209,7 +1209,8 @@ env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1
 if env.TargetOSIs('posix'):
 
     # -Winvalid-pch Warn if a precompiled header (see Precompiled Headers) is found in the search path but can't be used.
-    env.Append( CCFLAGS=["-fPIC",
+    env.Append( CCFLAGS=["-fno-omit-frame-pointer",
+                         "-fPIC",
                          "-fno-strict-aliasing",
                          "-ggdb",
                          "-pthread",
-- 
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