Messages in this thread | ![/](/images/icornerl.gif) | | From | Arnd Bergmann <> | Date | Sun, 10 Sep 2017 22:38:58 +0200 | Subject | "objtool orc" creates invalid file arch/x86/kernel/time.o |
| |
Hi Josh,
I have a randconfig build that produces a link error:
built-in.o: member arch/x86/kernel/time.o in archive is not an object
I've traced it down to the "objtool orc generate" command that appears to corrupt the file, by running the same commands that 'make' calls:
arnd@wuerfel:/git/arm-soc/build/x86/0xF20D8DD8_defconfig$ /home/arnd/cross-gcc/bin/x86_64-linux-gcc-8.0.0 -Werror -Wa,--fatal-warnings -DKCONFIG_SEED= -Wp,-MD,arch/x86/kernel/.time.o.d -nostdinc -isystem /home/arnd/cross-gcc/lib/gcc/x86_64-linux/8.0.0/include -I/git/arm-soc/arch/x86/include -I./arch/x86/include/generated -I/git/arm-soc/include -I./include -I/git/arm-soc/arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I/git/arm-soc/include/uapi -I./include/generated/uapi -include /git/arm-soc/include/linux/kconfig.h -I/git/arm-soc/arch/x86/kernel -Iarch/x86/kernel -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -Werror-implicit-function-declaration -Wno-format-security -std=gnu89 -fno-PIE -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mskip-rax-setup -march=k8 -mno-red-zone -mcmodel=kernel -funit-at-a-time -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_SSSE3=1 -DCONFIG_AS_CRC32=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 -DCONFIG_AS_AVX512=1 -DCONFIG_AS_SHA1_NI=1 -DCONFIG_AS_SHA256_NI=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -fno-delete-null-pointer-checks -Wno-frame-address -Os -Wno-maybe-uninitialized --param=allow-store-data-races=0 -DCC_HAVE_ASM_GOTO -Wframe-larger-than=2048 -fstack-protector -Wno-unused-but-set-variable -Wno-unused-const-variable -fomit-frame-pointer -fno-var-tracking-assignments -fno-inline-functions-called-once -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes -Werror=date-time -Werror=incompatible-pointer-types -Werror=designated-init -Wformat-truncation=0 -Wno-packed-not-aligned -DKBUILD_BASENAME='"time"' -DKBUILD_MODNAME='"time"' -c -o arch/x86/kernel/time.o /git/arm-soc/arch/x86/kernel/time.c arnd@wuerfel:/git/arm-soc/build/x86/0xF20D8DD8_defconfig$ nm arch/x86/kernel/time.o | head U global_clock_event U hpet_enable 000000000000000b T hpet_time_init U in_lock_functions 0000000000000000 d irq0 0000000000000000 D jiffies U late_time_init U legacy_pic 0000000000000012 T profile_pc U setup_irq arnd@wuerfel:/git/arm-soc/build/x86/0xF20D8DD8_defconfig$ ./tools/objtool/objtool orc generate --no-fp "arch/x86/kernel/time.o" arnd@wuerfel:/git/arm-soc/build/x86/0xF20D8DD8_defconfig$ nm arch/x86/kernel/time.o nm: arch/x86/kernel/time.o: File format not recognized
I attached both versions of the object file here, plus the .config file, please have a look.
Arnd [unhandled content-type:application/x-object][unhandled content-type:application/x-object][unhandled content-type:application/octet-stream] | ![\](/images/icornerr.gif) |