From 4eecc431ea1d6bc024e77f00f54fd6b7bcbec428 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 23 Oct 2005 20:51:44 +0000 Subject: [PATCH] add -funit-at-a-time to cflags, saves at least 45k and makes current images with webif smaller than the rc3 binaries SVN-Revision: 2288 --- .../generic/005-extra_optimization.patch | 24 +++++++++++++++++++ openwrt/toolchain/Config.in | 2 +- openwrt/toolchain/Config.in.devel | 2 +- 3 files changed, 26 insertions(+), 2 deletions(-) create mode 100644 openwrt/target/linux/linux-2.4/patches/generic/005-extra_optimization.patch diff --git a/openwrt/target/linux/linux-2.4/patches/generic/005-extra_optimization.patch b/openwrt/target/linux/linux-2.4/patches/generic/005-extra_optimization.patch new file mode 100644 index 0000000000..5ae25cbfb7 --- /dev/null +++ b/openwrt/target/linux/linux-2.4/patches/generic/005-extra_optimization.patch @@ -0,0 +1,24 @@ +--- linux-2.4.30/Makefile 2005-10-23 20:52:56.813948000 +0200 ++++ linux.dev/Makefile 2005-10-23 20:53:12.482927250 +0200 +@@ -89,6 +89,8 @@ + # standard CFLAGS + # + ++check_gcc = $(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi) ++ + CPPFLAGS := -D__KERNEL__ -I$(HPATH) + + CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -Os \ +@@ -100,6 +102,12 @@ + endif + AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS) + ++CFLAGS += $(call check_gcc, -funit-at-a-time,) ++ ++ ++ ++ ++ + # + # ROOT_DEV specifies the default root-device when making the image. + # This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case diff --git a/openwrt/toolchain/Config.in b/openwrt/toolchain/Config.in index fd906f05f6..67a331f048 100644 --- a/openwrt/toolchain/Config.in +++ b/openwrt/toolchain/Config.in @@ -24,5 +24,5 @@ config BR2_SOFT_FLOAT config BR2_TARGET_OPTIMIZATION string - default "-Os -pipe -mips32 -mtune=mips32" + default "-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time" diff --git a/openwrt/toolchain/Config.in.devel b/openwrt/toolchain/Config.in.devel index 48fe1465df..16c1746cd9 100644 --- a/openwrt/toolchain/Config.in.devel +++ b/openwrt/toolchain/Config.in.devel @@ -37,7 +37,7 @@ config BR2_SOFT_FLOAT config BR2_TARGET_OPTIMIZATION string "Target Optimizations" - default "-Os -pipe -mips32 -mtune=mips32" + default "-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time" help Optimizations to use when building for the target host. -- 2.30.2