[llvm] Tweak ld flags for memory usage and performance

[Adam Jackson]

commit bb18301e2a544676ba9d0704d448301a0a7dd9d1
Author: Adam Jackson <ajax at redhat.com>
Date:   Wed May 1 17:33:11 2013 -0400

    Tweak ld flags for memory usage and performance

 llvm-3.2-symbolic-shlib.patch |   12 ++++++++++++
 llvm.spec                     |    9 ++++++++-
 2 files changed, 20 insertions(+), 1 deletions(-)
---
diff --git a/llvm-3.2-symbolic-shlib.patch b/llvm-3.2-symbolic-shlib.patch
new file mode 100644
index 0000000..64d0422
--- /dev/null
+++ b/llvm-3.2-symbolic-shlib.patch
@@ -0,0 +1,12 @@
+diff -up llvm-3.2.src/tools/llvm-shlib/Makefile.jx llvm-3.2.src/tools/llvm-shlib/Makefile
+--- llvm-3.2.src/tools/llvm-shlib/Makefile.jx	2012-08-06 16:52:18.000000000 -0400
++++ llvm-3.2.src/tools/llvm-shlib/Makefile	2013-05-01 16:55:20.286980046 -0400
+@@ -76,7 +76,7 @@ endif
+ 
+ ifeq ($(HOST_OS), $(filter $(HOST_OS), Linux GNU))
+     # Don't allow unresolved symbols.
+-    LLVMLibsOptions += -Wl,--no-undefined
++    LLVMLibsOptions += -Wl,--no-undefined -Wl,-Bsymbolic
+ endif
+ 
+ ifeq ($(HOST_OS),SunOS)
diff --git a/llvm.spec b/llvm.spec
index 8649b6e..944e8d1 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -35,7 +35,7 @@
 
 Name:           llvm
 Version:        3.2
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        The Low Level Virtual Machine
 
 Group:          Development/Languages
@@ -62,6 +62,9 @@ Patch11:        clang-hardfloat-hack.patch
 # test suite.  i don't even.
 Patch20:	llvm-3.2-llvm-config-dso-hack.patch
 
+# hack the link flags for the shared libs for speed and memory usage
+Patch21:	llvm-3.2-symbolic-shlib.patch
+
 # from http://people.freedesktop.org/~tstellar/llvm/3.2/ as of 7 March 2013
 # ref: http://lists.freedesktop.org/archives/mesa-dev/2013-March/035561.html
 Patch600:	R600-Mesa-9.1.patch.gz
@@ -280,6 +283,7 @@ mv clang-%{version}%{?prerel}.src tools/clang
 
 # fix llvm-config --libs
 #patch20 -p1 -b .orig
+%patch21 -p1 -b .orig
 
 %patch600 -p1 -b .orig
 %patch601 -p1 -b .orig
@@ -574,6 +578,9 @@ exit 0
 %endif
 
 %changelog
+* Wed May 01 2013 Adam Jackson <ajax at redhat.com> 3.2-5
+- Tweak ld flags for memory usage and performance
+
 * Thu Apr  4 2013 Jens Petersen <petersen at redhat.com> - 3.2-4
 - fix bogus date for 2.9-0.2.rc1
 - drop insufficient llvm-3.2-clang-driver-secondary-arch-triplets.patch