The arm64 VDSO Makefile explicitly disables gcov; a practice we seem to have inherited from other VDSO Makefiles. The arm64 VDSO is written entirely in assembly, so this is not necessary. Further, if the VDSO were written in C it would be necessary to disable all other instrumentation, and this alone would not be sufficient. This patch remosves the redundant GCOV option for now. Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Reported-by: Will Deacon <will.deacon@xxxxxxx> Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx> --- arch/arm64/kernel/vdso/Makefile | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index 62c84f7cb01b..350190b749dd 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -15,9 +15,6 @@ ccflags-y := -shared -fno-common -fno-builtin ccflags-y += -nostdlib -Wl,-soname=linux-vdso.so.1 \ $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) -# Disable gcov profiling for VDSO code -GCOV_PROFILE := n - # Workaround for bare-metal (ELF) toolchains that neglect to pass -shared # down to collect2, resulting in silent corruption of the vDSO image. ccflags-y += -Wl,-shared -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
