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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-03-26 01:07:12 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-03-26 01:07:12 +0000
commitd46648401aee20c4983693e87620f84563e41cb6 (patch)
tree382c5fca0553805fc90c7540e5d3154787ba9786 /include
parentb179f71e7dbb7419149069faaaeff8fa06daa85c (diff)
global cflags: remove -funit-at-a-time, it is ignored by recent compilers. instead add -fno-caller-saves, which improves compression ratio for generated code with no apparent negative effects on performance
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26300 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'include')
-rw-r--r--include/target.mk16
1 files changed, 8 insertions, 8 deletions
diff --git a/include/target.mk b/include/target.mk
index ef5a65665c..e1f4dc6ca9 100644
--- a/include/target.mk
+++ b/include/target.mk
@@ -157,17 +157,17 @@ ifeq ($(DUMP),1)
# remove duplicates
FEATURES:=$(sort $(FEATURES))
endif
- DEFAULT_CFLAGS_i386=-O2 -pipe -march=i486 -funit-at-a-time
- DEFAULT_CFLAGS_x86_64=-O2 -pipe -march=athlon64 -funit-at-a-time
- DEFAULT_CFLAGS_m68k=-Os -pipe -mcfv4e -funit-at-a-time
- DEFAULT_CFLAGS_mips=-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time
+ DEFAULT_CFLAGS_i386=-O2 -pipe -march=i486 -fno-caller-saves
+ DEFAULT_CFLAGS_x86_64=-O2 -pipe -march=athlon64 -fno-caller-saves
+ DEFAULT_CFLAGS_m68k=-Os -pipe -mcfv4e -fno-caller-saves
+ DEFAULT_CFLAGS_mips=-Os -pipe -mips32 -mtune=mips32 -fno-caller-saves
DEFAULT_CFLAGS_mipsel=$(DEFAULT_CFLAGS_mips)
- DEFAULT_CFLAGS_mips64=-Os -pipe -mips64 -mtune=mips64 -mabi=64 -funit-at-a-time
+ DEFAULT_CFLAGS_mips64=-Os -pipe -mips64 -mtune=mips64 -mabi=64 -fno-caller-saves
DEFAULT_CFLAGS_mips64el=$(DEFAULT_CFLAGS_mips64)
- DEFAULT_CFLAGS_sparc=-Os -pipe -mcpu=ultrasparc -funit-at-a-time
- DEFAULT_CFLAGS_arm=-Os -pipe -march=armv5te -mtune=xscale -funit-at-a-time
+ DEFAULT_CFLAGS_sparc=-Os -pipe -mcpu=ultrasparc -fno-caller-saves
+ DEFAULT_CFLAGS_arm=-Os -pipe -march=armv5te -mtune=xscale -fno-caller-saves
DEFAULT_CFLAGS_armeb=$(DEFAULT_CFLAGS_arm)
- DEFAULT_CFLAGS=$(if $(DEFAULT_CFLAGS_$(ARCH)),$(DEFAULT_CFLAGS_$(ARCH)),-Os -pipe -funit-at-a-time)
+ DEFAULT_CFLAGS=$(if $(DEFAULT_CFLAGS_$(ARCH)),$(DEFAULT_CFLAGS_$(ARCH)),-Os -pipe -fno-caller-saves)
endif
define BuildTargets/DumpCurrent