I could not find that WERROR override code at my kernels...
Sorry delay it, I did make V=1.
There are three kinds test.
All targets are ARM.
All Makefiles(top of kernel tree)-KBUILD_CFLAGS are same.
KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -fno-common \
-Wno-format-security \
-fno-delete-null-pointer-checks
I think linaro Werror behaviour is different or I need to add FLAGS more.
Compile CM-kernel with android SDK
make -f scripts/Makefile.build obj=drivers/net/wireless/bcm4329
rm -f drivers/net/wireless/bcm4329/built-in.o;
/home/tknv/android/Oxygen/prebuil
t/linux-x86/toolchain/arm-eabi-4.4.3/bin/arm-eabi-ar rcs
drivers/net/wireless/bcm43 29/built-in.o
/home/tknv/android/Oxygen/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/arm-eab
i-gcc -Wp,-MD,drivers/net/wireless/bcm4329/.dhd_linux.o.d
-nostdinc -isystem /home
/tknv/android/Oxygen/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm
-eabi/4.4.3/include
-I/home/tknv/android/SuperSonic/kernels/CM-kernel/arch/arm/incl
ude -Iinclude -include include/generated/autoconf.h
-D__KERNEL__ -mlittle-endian - Iarch/arm/mach-msm/include
-Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-st
rict-aliasing -fno-common -Wno-format-security
-fno-delete-null-pointer-checks -Os -marm -mabi=aapcs-linux
-mno-thumb-interwork -funwind-tables -D__LINUX_ARM_ARCH__=7
-march=armv7-a -msoft-float -Uarm -Wframe-larger-than=1024
-fno-stack-protector -f omit-frame-pointer
-Wdeclaration-after-statement -Wno-pointer-sign
-fno-strict-over flow -fno-dwarf2-cfi-asm -fconserve-stack
-DLINUX -DBCMDRIVER -DBCMDONGLEHOST -DDHD THREAD -DBCMWPA2
-DUNRELEASEDCHIP -Dlinux -DDHD_SDALIGN=64 -DMAX_HDR_READ=64
-DDHD_ FIRSTREAD=64 -DDHD_GPL -DDHD_SCHED -DBDC -DTOE
-DDHD_BCMEVENTS -DSHOW_EVENTS -DBCMS DIO -DDHD_GPL
-DBCMLXSDMMC -DBCMPLATFORM_BUS -Wall -Wstrict-prototypes
-Werror -DOO B_INTR_ONLY -DCUSTOMER_HW2 -DDHD_USE_STATIC_BUF
-DMMC_SDIO_ABORT -DDHD_DEBUG_TRAP - DSOFTAP
-DEMBEDDED_PLATFORM -DARP_OFFLOAD_SUPPORT -DPKT_FILTER_SUPPORT
-DGET_CUSTOM _MAC_ENABLE -DSET_RANDOM_MAC_SOFTAP -DHW_OOB
-Idrivers/net/wireless/bcm4329 -Idrive
rs/net/wireless/bcm4329/include -DMODULE -D"KBUILD_STR(s)=#s"
-D"KBUILD_BASENAME=K BUILD_STR(dhd_linux)"
-D"KBUILD_MODNAME=KBUILD_STR(bcm4329)" -c -o drivers/net/wi
reless/bcm4329/dhd_linux.o
drivers/net/wireless/bcm4329/dhd_linux.
...
[1]+ Done make V=1 > build.log 2>&1
Compile CM-kernel with linaro.
make -f scripts/Makefile.build obj=drivers/net/wireless/bcm4329
rm -f drivers/net/wireless/bcm4329/built-in.o;
/usr/bin/arm-linux-gnueabi-ar rcs
drivers/net/wireless/bcm4329/built-in.o
/usr/bin/arm-linux-gnueabi-gcc
-Wp,-MD,drivers/net/wireless/bcm4329/.dhd_linux.o.d -nostdinc
-isystem /usr/lib/gcc/arm-linux-gnueabi/4.6.1/include
-I/home/tknv/android/SuperSonic/kernels/CM-kernel/arch/arm/include
-Iinclude -include include/generated/autoconf.h -D__KERNEL__
-mlittle-endian -Iarch/arm/mach-msm/include -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-Wno-format-security -fno-delete-null-pointer-checks -Os -marm
-mabi=aapcs-linux -mno-thumb-interwork -funwind-tables
-D__LINUX_ARM_ARCH__=7 -march=armv7-a -msoft-float -Uarm
-Wframe-larger-than=1024 -fno-stack-protector -fomit-frame-pointer
-Wdeclaration-after-statement -Wno-pointer-sign
-fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -DLINUX
-DBCMDRIVER -DBCMDONGLEHOST -DDHDTHREAD -DBCMWPA2 -DUNRELEASEDCHIP
-Dlinux -DDHD_SDALIGN=64 -DMAX_HDR_READ=64 -DDHD_FIRSTREAD=64
-DDHD_GPL -DDHD_SCHED -DBDC -DTOE -DDHD_BCMEVENTS -DSHOW_EVENTS
-DBCMSDIO -DDHD_GPL -DBCMLXSDMMC -DBCMPLATFORM_BUS -Wall
-Wstrict-prototypes -Werror -DOOB_INTR_ONLY -DCUSTOMER_HW2
-DDHD_USE_STATIC_BUF -DMMC_SDIO_ABORT -DDHD_DEBUG_TRAP -DSOFTAP
-DEMBEDDED_PLATFORM -DARP_OFFLOAD_SUPPORT -DPKT_FILTER_SUPPORT
-DGET_CUSTOM_MAC_ENABLE -DSET_RANDOM_MAC_SOFTAP -DHW_OOB
-Idrivers/net/wireless/bcm4329
-Idrivers/net/wireless/bcm4329/include -DMODULE
-D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(dhd_linux)"
-D"KBUILD_MODNAME=KBUILD_STR(bcm4329)" -c -o
drivers/net/wireless/bcm4329/dhd_linux.o
drivers/net/wireless/bcm4329/dhd_linux.c
drivers/net/wireless/bcm4329/dhd_linux.c: In function ‘
dhd_rx_frame’:
drivers/net/wireless/bcm4329/dhd_linux.c:1282:24: error: variable
‘save_pktbuf’ set but not used [-Werror=unused-but-set-variable]
drivers/net/wireless/bcm4329/dhd_linux.c: In function ‘
dhd_os_wd_timer’:
drivers/net/wireless/bcm4329/dhd_linux.c:2737:14: error: variable
‘save_dhd_watchdog_ms’ set but not used
[-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
make[4]: *** [drivers/net/wireless/bcm4329/dhd_linux.o] Error 1
make[3]: *** [drivers/net/wireless/bcm4329] Error 2
make[2]: *** [drivers/net/wireless] Error 2
make[1]: *** [drivers/net] Error 2
make: *** [drivers] Error 2
^C[1]+ Exit 2 make V=1 > build.log 2>&1
Compile tiamatat-kernel with linaro.
make -f scripts/Makefile.build obj=drivers/net/wireless/bcm4329
/usr/bin/arm-linux-gnueabi-gcc
-Wp,-MD,drivers/net/wireless/bcm4329/.dhd_linux.o.d -nostdinc
-isystem /usr/lib/gcc/arm-linux-gnueabi/4.6.1/include
-I/home/tknv/android/SuperSonic/kernels/tiamat-kernel/arch/arm/include
-Iinclude -include include/generated/autoconf.h -D__KERNEL__
-mlittle-endian -Iarch/arm/mach-msm/include -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-Wno-format-security -fno-delete-null-pointer-checks -Os -marm
-fno-dwarf2-cfi-asm -fno-omit-frame-pointer -mapcs -mno-sched-prolog
-mabi=aapcs-linux -mno-thumb-interwork -D__LINUX_ARM_ARCH__=7
-march=armv7-a -mhard-float -Uarm -Wframe-larger-than=1024
-fno-stack-protector -fno-omit-frame-pointer
-fno-optimize-sibling-calls -Wdeclaration-after-statement
-Wno-pointer-sign -fno-strict-overflow -fconserve-stack
-DCC_HAVE_ASM_GOTO -DLINUX -DBCMDRIVER -DBCMDONGLEHOST -DDHDTHREAD
-DBCMWPA2 -DUNRELEASEDCHIP -Dlinux -DDHD_SDALIGN=64 -DMAX_HDR_READ=64
-DDHD_FIRSTREAD=64 -DDHD_GPL -DDHD_SCHED -DBDC -DTOE -DDHD_BCMEVENTS
-DSHOW_EVENTS -DBCMSDIO -DDHD_GPL -DBCMLXSDMMC -DBCMPLATFORM_BUS -Wall
-Wstrict-prototypes -Werror -DOOB_INTR_ONLY -DCUSTOMER_HW2
-DDHD_USE_STATIC_BUF -DMMC_SDIO_ABORT -DDHD_DEBUG_TRAP -DSOFTAP
-DEMBEDDED_PLATFORM -DARP_OFFLOAD_SUPPORT -DPKT_FILTER_SUPPORT
-DGET_CUSTOM_MAC_ENABLE -DSET_RANDOM_MAC_SOFTAP -DCSCAN -DHW_OOB
-DKEEP_ALIVE -DPNO_SUPPORT -Idrivers/net/wireless/bcm4329
-Idrivers/net/wireless/bcm4329/include -DMODULE -DMODULE
-march=armv7-a -mfpu=vfpv3 -ftree-vectorize -D"KBUILD_STR(s)=#s"
-D"KBUILD_BASENAME=KBUILD_STR(dhd_linux)"
-D"KBUILD_MODNAME=KBUILD_STR(bcm4329)" -c -o
drivers/net/wireless/bcm4329/dhd_linux.o
drivers/net/wireless/bcm4329/dhd_linux.c
drivers/net/wireless/bcm4329/dhd_linux.c: In function ‘dhd_rx_frame’
:
drivers/net/wireless/bcm4329/dhd_linux.c:1256:24: error: variable ‘
save_pktbuf’ set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
make[4]: *** [drivers/net/wireless/bcm4329/dhd_linux.o] Error 1
make[3]: *** [drivers/net/wireless/bcm4329] Error 2
make[2]: *** [drivers/net/wireless] Error 2
make[1]: *** [drivers/net] Error 2
make: *** [drivers] Error 2
^C[1]+ Exit 2 make V=1 > build.log 2>&1
On Wed, Nov 30, 2011 at 04:13:18PM +0000, Dave Martin wrote:
> On Tue, Nov 29, 2011 at 09:43:01PM +0700, tknv wrote:
> > This issue happend,when I was compiling ARM kernel.
> > I could not get it where -Werror gets overriden in tools/perf.
> > Could you tell me where is it ?
>
> In tools/perf/Makefile:
>
> 34:# Define WERROR=0 to disable treating any warnings as errors.
> 69:ifneq ($(WERROR),0)
> 70: CFLAGS_WERROR := -Werror
> 105:CFLAGS = -fno-omit-frame-pointer -ggdb3 -Wall -Wextra -std=gnu99
> $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS)
> $(EXTRA_CFLAGS)
>
> This Makefile _only_ applies to the perf tools. The rest of the kernel
> uses other Makefiles.
>
> The perf tools are not built automatically, so if you are only trying to
> build a kernel image then you must have some other problem.
>
>
> As I suggested previously, can you please run
>
> make V=1
>
> and send the last few lines of output, including the error message *and*
> the command which caused it.
>
> Without a precise indication of where the error occurs, I can't offer much
> help.
>
> Cheers
> ---Dave
>
>
>
> _______________________________________________
> linaro-toolchain mailing list
> linaro-toolchain@lists.linaro.org
> http://lists.linaro.org/mailman/listinfo/linaro-toolchain
--
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