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
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