diff options
| author | Wolfgang Denk <wd@denx.de> | 2011-11-01 20:54:02 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-11-03 20:44:58 +0100 |
| commit | cca4e4aec1fe52e5ecd15e3cebdbb36e2f254220 (patch) | |
| tree | 58737a4eeeedb099b8a71f8dfacb11a810e1d4fb | |
| parent | 4d6402b012b074f4658785773c97745963c52dc5 (diff) | |
Reduce build times
U-Boot Makefiles contain a number of tests for compiler features etc.
which so far are executed again and again. On some architectures
(especially ARM) this results in a large number of calls to gcc.
This patch makes sure to run such tests only once, thus largely
reducing the number of "execve" system calls.
Example: number of "execve" system calls for building the "P2020DS"
(Power Architecture) and "qong" (ARM) boards, measured as:
-> strace -f -e trace=execve -o /tmp/foo ./MAKEALL <board>
-> grep execve /tmp/foo | wc -l
Before: After: Reduction:
==================================
P2020DS 20555 15205 -26%
qong 31692 14490 -54%
As a result, built times are significantly reduced, typically by
30...50%.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Andy Fleming <afleming@gmail.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Albert Aribaud <albert.aribaud@free.fr>
cc: Graeme Russ <graeme.russ@gmail.com>
cc: Mike Frysinger <vapier@gentoo.org>
Tested-by: Graeme Russ <graeme.russ@gmail.com>
Tested-by: Matthias Weisser <weisserm@arcor.de>
Tested-by: Sanjeev Premi <premi@ti.com>
Tested-by: Simon Glass <sjg@chromium.org>
Tested-by: Macpaul Lin <macpaul@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
25 files changed, 67 insertions, 43 deletions
@@ -320,7 +320,7 @@ else PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc endif else -PLATFORM_LIBGCC = -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc +PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc endif PLATFORM_LIBS += $(PLATFORM_LIBGCC) export PLATFORM_LIBS diff --git a/arch/arm/config.mk b/arch/arm/config.mk index 9b4e581b2d0..45f9dca5d5a 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -34,7 +34,7 @@ endif PLATFORM_CPPFLAGS += -DCONFIG_ARM -D__ARM__ # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: -PLATFORM_CPPFLAGS += $(call cc-option,-marm,) +PF_CPPFLAGS_ARM := $(call cc-option,-marm,) # Try if EABI is supported, else fall back to old API, # i. e. for example: @@ -44,15 +44,16 @@ PLATFORM_CPPFLAGS += $(call cc-option,-marm,) # -mabi=apcs-gnu -mno-thumb-interwork # - with ELDK 3.1 (gcc 3.x), use: # -mapcs-32 -mno-thumb-interwork -PLATFORM_CPPFLAGS += $(call cc-option,\ - -mabi=aapcs-linux -mno-thumb-interwork,\ +PF_CPPFLAGS_ABI := $(call cc-option,\ + -mabi=aapcs-linux -mno-thumb-interwork,\ + $(call cc-option,\ + -mapcs-32,\ $(call cc-option,\ - -mapcs-32,\ - $(call cc-option,\ - -mabi=apcs-gnu,\ - )\ - ) $(call cc-option,-mno-thumb-interwork,)\ - ) + -mabi=apcs-gnu,\ + )\ + ) $(call cc-option,-mno-thumb-interwork,)\ + ) +PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI) # For EABI, make sure to provide raise() ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS))) diff --git a/arch/arm/cpu/arm1136/config.mk b/arch/arm/cpu/arm1136/config.mk index 3e685354ab7..efee0d1dca6 100644 --- a/arch/arm/cpu/arm1136/config.mk +++ b/arch/arm/cpu/arm1136/config.mk @@ -29,4 +29,5 @@ PLATFORM_CPPFLAGS += -march=armv5 # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/arm1176/config.mk b/arch/arm/cpu/arm1176/config.mk index 14346cfff3f..222d352b3a8 100644 --- a/arch/arm/cpu/arm1176/config.mk +++ b/arch/arm/cpu/arm1176/config.mk @@ -29,4 +29,6 @@ PLATFORM_CPPFLAGS += -march=armv5t # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,\ + $(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/arm1176/s3c64xx/config.mk b/arch/arm/cpu/arm1176/s3c64xx/config.mk index 14346cfff3f..222d352b3a8 100644 --- a/arch/arm/cpu/arm1176/s3c64xx/config.mk +++ b/arch/arm/cpu/arm1176/s3c64xx/config.mk @@ -29,4 +29,6 @@ PLATFORM_CPPFLAGS += -march=armv5t # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,\ + $(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/arm720t/config.mk b/arch/arm/cpu/arm720t/config.mk index 3844c626af3..210c6dcb08a 100644 --- a/arch/arm/cpu/arm720t/config.mk +++ b/arch/arm/cpu/arm720t/config.mk @@ -30,4 +30,6 @@ PLATFORM_CPPFLAGS += -march=armv4 -mtune=arm7tdmi # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,\ + $(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/arm920t/config.mk b/arch/arm/cpu/arm920t/config.mk index 8f6c1a354c5..f03030a2fa5 100644 --- a/arch/arm/cpu/arm920t/config.mk +++ b/arch/arm/cpu/arm920t/config.mk @@ -29,4 +29,5 @@ PLATFORM_CPPFLAGS += -march=armv4 # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/arm925t/config.mk b/arch/arm/cpu/arm925t/config.mk index 8f6c1a354c5..f03030a2fa5 100644 --- a/arch/arm/cpu/arm925t/config.mk +++ b/arch/arm/cpu/arm925t/config.mk @@ -29,4 +29,5 @@ PLATFORM_CPPFLAGS += -march=armv4 # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/arm926ejs/at91/config.mk b/arch/arm/cpu/arm926ejs/at91/config.mk index 19296fdba2a..370630d4de0 100644 --- a/arch/arm/cpu/arm926ejs/at91/config.mk +++ b/arch/arm/cpu/arm926ejs/at91/config.mk @@ -1 +1,2 @@ -PLATFORM_CPPFLAGS += $(call cc-option,-mtune=arm926ejs,) +PF_CPPFLAGS_TUNE := $(call cc-option,-mtune=arm926ejs,) +PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_TUNE) diff --git a/arch/arm/cpu/arm926ejs/config.mk b/arch/arm/cpu/arm926ejs/config.mk index f8ef90f2d51..ffb2e6c3ea7 100644 --- a/arch/arm/cpu/arm926ejs/config.mk +++ b/arch/arm/cpu/arm926ejs/config.mk @@ -29,4 +29,5 @@ PLATFORM_CPPFLAGS += -march=armv5te # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/arm946es/config.mk b/arch/arm/cpu/arm946es/config.mk index e783f697a10..c2354ba4e9e 100644 --- a/arch/arm/cpu/arm946es/config.mk +++ b/arch/arm/cpu/arm946es/config.mk @@ -29,4 +29,5 @@ PLATFORM_CPPFLAGS += -march=armv4 # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/arm_intcm/config.mk b/arch/arm/cpu/arm_intcm/config.mk index e783f697a10..c2354ba4e9e 100644 --- a/arch/arm/cpu/arm_intcm/config.mk +++ b/arch/arm/cpu/arm_intcm/config.mk @@ -29,4 +29,5 @@ PLATFORM_CPPFLAGS += -march=armv4 # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/armv7/config.mk b/arch/arm/cpu/armv7/config.mk index 49ac9c74aeb..83ddf10f1f6 100644 --- a/arch/arm/cpu/armv7/config.mk +++ b/arch/arm/cpu/armv7/config.mk @@ -29,5 +29,5 @@ PLATFORM_CPPFLAGS += -march=armv5 # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,\ - $(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/armv7/omap-common/config.mk b/arch/arm/cpu/armv7/omap-common/config.mk index 49ac9c74aeb..c400dccba8a 100644 --- a/arch/arm/cpu/armv7/omap-common/config.mk +++ b/arch/arm/cpu/armv7/omap-common/config.mk @@ -29,5 +29,6 @@ PLATFORM_CPPFLAGS += -march=armv5 # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,\ - $(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,\ + $(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/ixp/config.mk b/arch/arm/cpu/ixp/config.mk index 5868cba38b7..91496659990 100644 --- a/arch/arm/cpu/ixp/config.mk +++ b/arch/arm/cpu/ixp/config.mk @@ -37,4 +37,5 @@ LDFLAGS_u-boot += --gc-sections # Supply options according to compiler version # # ========================================================================= -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/lh7a40x/config.mk b/arch/arm/cpu/lh7a40x/config.mk index 47b2b7b722d..1c4aa97eaa6 100644 --- a/arch/arm/cpu/lh7a40x/config.mk +++ b/arch/arm/cpu/lh7a40x/config.mk @@ -29,4 +29,5 @@ PLATFORM_CPPFLAGS += -march=armv4 # Supply options according to compiler version # # ======================================================================== -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/pxa/config.mk b/arch/arm/cpu/pxa/config.mk index a05d69ca270..0bbe295a2c0 100644 --- a/arch/arm/cpu/pxa/config.mk +++ b/arch/arm/cpu/pxa/config.mk @@ -30,4 +30,5 @@ PLATFORM_CPPFLAGS += -march=armv5te -mtune=xscale # Supply options according to compiler version # # ======================================================================== -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/s3c44b0/config.mk b/arch/arm/cpu/s3c44b0/config.mk index 7454d728a55..f6f6398e6e5 100644 --- a/arch/arm/cpu/s3c44b0/config.mk +++ b/arch/arm/cpu/s3c44b0/config.mk @@ -30,4 +30,5 @@ PLATFORM_CPPFLAGS += -march=armv4 -mtune=arm7tdmi -msoft-float # Supply options according to compiler version # # ======================================================================== -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/arm/cpu/sa1100/config.mk b/arch/arm/cpu/sa1100/config.mk index 6f21f410be3..06af16088df 100644 --- a/arch/arm/cpu/sa1100/config.mk +++ b/arch/arm/cpu/sa1100/config.mk @@ -30,4 +30,5 @@ PLATFORM_CPPFLAGS += -march=armv4 -mtune=strongarm1100 # Supply options according to compiler version # # ======================================================================== -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT) diff --git a/arch/powerpc/cpu/mpc824x/Makefile b/arch/powerpc/cpu/mpc824x/Makefile index 2bfcd8548c2..ebf4cb25122 100644 --- a/arch/powerpc/cpu/mpc824x/Makefile +++ b/arch/powerpc/cpu/mpc824x/Makefile @@ -23,8 +23,7 @@ include $(TOPDIR)/config.mk ifneq ($(OBJTREE),$(SRCTREE)) -$(shell mkdir -p $(obj)drivers/epic) -$(shell mkdir -p $(obj)drivers/i2c) +$(shell mkdir -p $(obj)drivers/epic $(obj)drivers/i2c) endif LIB = $(obj)lib$(CPU).o diff --git a/arch/powerpc/cpu/mpc85xx/config.mk b/arch/powerpc/cpu/mpc85xx/config.mk index 68ac57dd0de..f36d8230544 100644 --- a/arch/powerpc/cpu/mpc85xx/config.mk +++ b/arch/powerpc/cpu/mpc85xx/config.mk @@ -28,5 +28,6 @@ PLATFORM_CPPFLAGS += -ffixed-r2 -Wa,-me500 -msoft-float -mno-string # -mspe=yes is needed to have -mno-spe accepted by a buggy GCC; # see "[PATCH,rs6000] make -mno-spe work as expected" on # http://gcc.gnu.org/ml/gcc-patches/2008-04/msg00311.html -PLATFORM_CPPFLAGS +=$(call cc-option,-mspe=yes) -PLATFORM_CPPFLAGS +=$(call cc-option,-mno-spe) +PF_CPPFLAGS_SPE := $(call cc-option,-mspe=yes) \ + $(call cc-option,-mno-spe) +PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_SPE) diff --git a/arch/x86/config.mk b/arch/x86/config.mk index ee23c9f87d2..fe9083f6268 100644 --- a/arch/x86/config.mk +++ b/arch/x86/config.mk @@ -27,10 +27,12 @@ PLATFORM_CPPFLAGS += -fno-strict-aliasing PLATFORM_CPPFLAGS += -Wstrict-prototypes PLATFORM_CPPFLAGS += -mregparm=3 PLATFORM_CPPFLAGS += -fomit-frame-pointer -PLATFORM_CPPFLAGS += $(call cc-option, -ffreestanding) -PLATFORM_CPPFLAGS += $(call cc-option, -fno-toplevel-reorder, $(call cc-option, -fno-unit-at-a-time)) -PLATFORM_CPPFLAGS += $(call cc-option, -fno-stack-protector) -PLATFORM_CPPFLAGS += $(call cc-option, -mpreferred-stack-boundary=2) +PF_CPPFLAGS_X86 := $(call cc-option, -ffreestanding) \ + $(call cc-option, -fno-toplevel-reorder, \ + $(call cc-option, -fno-unit-at-a-time)) \ + $(call cc-option, -fno-stack-protector) \ + $(call cc-option, -mpreferred-stack-boundary=2) +PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86) PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm PLATFORM_CPPFLAGS += -DREALMODE_BASE=0x7c0 diff --git a/board/siemens/SCM/Makefile b/board/siemens/SCM/Makefile index 07cc5a659d2..07db9d44e5d 100644 --- a/board/siemens/SCM/Makefile +++ b/board/siemens/SCM/Makefile @@ -24,8 +24,7 @@ include $(TOPDIR)/config.mk ifneq ($(OBJTREE),$(SRCTREE)) -$(shell mkdir -p $(obj)../common) -$(shell mkdir -p $(obj)../../tqc/tqm8xx) +$(shell mkdir -p $(obj)../common $(obj)../../tqc/tqm8xx) endif LIB = $(obj)lib$(BOARD).o diff --git a/config.mk b/config.mk index 11b67e540ef..918cffe3eb7 100644 --- a/config.mk +++ b/config.mk @@ -209,11 +209,13 @@ else CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes endif -CFLAGS += $(call cc-option,-fno-stack-protector) +CFLAGS_SSP := $(call cc-option,-fno-stack-protector) +CFLAGS += $(CFLAGS_SSP) # Some toolchains enable security related warning flags by default, # but they don't make much sense in the u-boot world, so disable them. -CFLAGS += $(call cc-option,-Wno-format-nonliteral) -CFLAGS += $(call cc-option,-Wno-format-security) +CFLAGS_WARN := $(call cc-option,-Wno-format-nonliteral) \ + $(call cc-option,-Wno-format-security) +CFLAGS += $(CFLAGS_WARN) # $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format> # option to the assembler. diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile index b1e33fba73d..e23865b4b02 100644 --- a/examples/standalone/Makefile +++ b/examples/standalone/Makefile @@ -85,7 +85,8 @@ endif # We don't want gcc reordering functions if possible. This ensures that an # application's entry point will be the first function in the application's # source file. -CFLAGS += $(call cc-option,-fno-toplevel-reorder) +CFLAGS_NTR := $(call cc-option,-fno-toplevel-reorder) +CFLAGS += $(CFLAGS_NTR) all: $(obj).depend $(OBJS) $(LIB) $(SREC) $(BIN) $(ELF) |