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authorAndi Kleen <ak@linux.intel.com>2014-02-08 09:01:14 +0100
committerH. Peter Anvin <hpa@linux.intel.com>2014-02-13 20:25:02 -0800
commit8564ed2b3888176ac323eefea1722003daeba3d3 (patch)
tree19b3860eb1110a2a876410b59a537c174aaa7082 /scripts/gcc-ld
parentccbef1674a1579842c7dbdf554efca85d2cd245a (diff)
downloadlinux-linaro-stable-8564ed2b3888176ac323eefea1722003daeba3d3.tar.gz
Kbuild, lto: Add a gcc-ld script to let run gcc as ld
For LTO we need to run the link step with gcc, not ld. Since there are a lot of linker options passed to it, add a gcc-ld wrapper that wraps them as -Wl, Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-10-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'scripts/gcc-ld')
-rw-r--r--scripts/gcc-ld29
1 files changed, 29 insertions, 0 deletions
diff --git a/scripts/gcc-ld b/scripts/gcc-ld
new file mode 100644
index 000000000000..cadab9a13ed7
--- /dev/null
+++ b/scripts/gcc-ld
@@ -0,0 +1,29 @@
+#!/bin/sh
+# run gcc with ld options
+# used as a wrapper to execute link time optimizations
+# yes virginia, this is not pretty
+
+ARGS="-nostdlib"
+
+while [ "$1" != "" ] ; do
+ case "$1" in
+ -save-temps|-m32|-m64) N="$1" ;;
+ -r) N="$1" ;;
+ -[Wg]*) N="$1" ;;
+ -[olv]|-[Ofd]*|-nostdlib) N="$1" ;;
+ --end-group|--start-group)
+ N="-Wl,$1" ;;
+ -[RTFGhIezcbyYu]*|\
+--script|--defsym|-init|-Map|--oformat|-rpath|\
+-rpath-link|--sort-section|--section-start|-Tbss|-Tdata|-Ttext|\
+--version-script|--dynamic-list|--version-exports-symbol|--wrap|-m)
+ A="$1" ; shift ; N="-Wl,$A,$1" ;;
+ -[m]*) N="$1" ;;
+ -*) N="-Wl,$1" ;;
+ *) N="$1" ;;
+ esac
+ ARGS="$ARGS $N"
+ shift
+done
+
+exec $CC $ARGS