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move generic kernel build parts out of board support patches

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2439 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2005-11-11 21:56:15 +00:00
parent 2663cb7168
commit 8e6fbc03d1
6 changed files with 148 additions and 161 deletions
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99
target/linux/linux-2.4/patches/generic/006-build_flags.patch Normal file
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@@ -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)