move generic kernel build parts out of board support patches

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@2439 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 99 insertions, 0 deletions

diff --git a/openwrt/target/linux/linux-2.4/patches/generic/006-build_flags.patch b/openwrt/target/linux/linux-2.4/patches/generic/006-build_flags.patch
new file mode 100644
index 0000000000..207dd0be21
--- /dev/null
+++ b/openwrt/target/linux/linux-2.4/patches/generic/006-build_flags.patch
@@ -0,0 +1,99 @@
+diff -urN linux.old/Makefile linux.dev/Makefile
+--- linux.old/Makefile	2005-08-26 13:41:41.689634168 +0200
++++ linux.dev/Makefile	2005-08-26 13:44:34.233403528 +0200
+@@ -17,9 +17,9 @@
+ FINDHPATH	= $(HPATH)/asm $(HPATH)/linux $(HPATH)/scsi $(HPATH)/net $(HPATH)/math-emu
+ 
+ HOSTCC  	= gcc
+-HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
++HOSTCFLAGS	= -Wall -Wstrict-prototypes -Os -fomit-frame-pointer
+ 
+-CROSS_COMPILE 	=
++CROSS_COMPILE=
+ 
+ #
+ # Include the make variables (CC, etc...)
+@@ -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 := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
+@@ -91,8 +93,10 @@
+ 
+ CPPFLAGS := -D__KERNEL__ -I$(HPATH)
+ 
+-CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
++CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
+ 	  -fno-strict-aliasing -fno-common
++
++
+ ifndef CONFIG_FRAME_POINTER
+ CFLAGS += -fomit-frame-pointer
+ endif
+@@ -100,6 +105,12 @@
+ 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 -urN linux.old/arch/mips/Makefile linux.dev/arch/mips/Makefile
+--- linux.old/arch/mips/Makefile	2005-11-07 23:12:50.582887000 +0100
++++ linux.dev/arch/mips/Makefile	2005-11-07 21:57:08.537629000 +0100
+@@ -46,10 +46,10 @@
+ GCCFLAGS	:= -I $(TOPDIR)/include/asm/gcc
+ GCCFLAGS	+= -G 0 -mno-abicalls -fno-pic -pipe
+ GCCFLAGS	+= $(call check_gcc, -finline-limit=100000,)
+-LINKFLAGS	+= -G 0 -static -n
+-MODFLAGS	+= -mlong-calls
++LINKFLAGS	+= -G 0 -static -n -nostdlib
++MODFLAGS	+= -mlong-calls -fno-common
+ 
+-ifdef CONFIG_DEBUG_INFO
++ifdef CONFIG_REMOTE_DEBUG
+ GCCFLAGS	+= -g
+ ifdef CONFIG_SB1XXX_CORELIS
+ GCCFLAGS	+= -mno-sched-prolog -fno-omit-frame-pointer
+@@ -71,13 +71,13 @@
+ set_gccflags = $(shell \
+ while :; do \
+ 	cpu=$(1); isa=-$(2); \
+-	for gcc_opt in -march= -mcpu=; do \
++	for gcc_opt in -march= -mtune=; do \
+ 		$(CC) $$gcc_opt$$cpu $$isa -S -o /dev/null \
+ 			-xc /dev/null > /dev/null 2>&1 && \
+ 			break 2; \
+ 	done; \
+ 	cpu=$(3); isa=-$(4); \
+-	for gcc_opt in -march= -mcpu=; do \
++	for gcc_opt in -march= -mtune=; do \
+ 		$(CC) $$gcc_opt$$cpu $$isa -S -o /dev/null \
+ 			-xc /dev/null > /dev/null 2>&1 && \
+ 			break 2; \
+@@ -92,7 +92,7 @@
+ fi; \
+ gas_abi=-Wa,-32; gas_cpu=$$cpu; gas_isa=-Wa,$$isa; \
+ while :; do \
+-	for gas_opt in -Wa,-march= -Wa,-mcpu=; do \
++	for gas_opt in -Wa,-march= -Wa,-mtune=; do \
+ 		$(CC) $$gas_abi $$gas_opt$$cpu $$gas_isa -Wa,-Z -c \
+ 			-o /dev/null -xassembler /dev/null > /dev/null 2>&1 && \
+ 			break 2; \
+@@ -174,6 +174,7 @@
+ endif
+ 
+ AFLAGS		+= $(GCCFLAGS)
++ASFLAGS		+= $(GCCFLAGS)
+ CFLAGS		+= $(GCCFLAGS)
+ 
+ LD		+= -m $(ld-emul)