Hello Matija, Thomas, On 04/04/2022 10:36, Matija Glavinic Pecotic wrote: > vdso image is not reproducible in different build directories as build > path defines vdso image contents via .notes, build ID. Build ID is > hashed across all sections (prior stripping), debug sections included. > With debug sections containing build paths, hash is impacted. Finally > vmlinux is not reproducible as it will differ in vdso_data. > > For users wanting reproducible builds, irrespective of build path, it > is unwanted behavior. Issue is sorted out by passing related options > via KAFLAGS, KCFLAGS, however due to mips' picking out specific/subset > options, these are not getting passed through. > > Allow related option to be taken if user specified them. > > Signed-off-by: Matija Glavinic Pecotic <matija.glavinic-pecotic.ext@xxxxxxxxx> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx> > --- > arch/mips/vdso/Makefile | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile > index f72658b3a53f..b8296ef2bfcf 100644 > --- a/arch/mips/vdso/Makefile > +++ b/arch/mips/vdso/Makefile > @@ -35,8 +35,12 @@ cflags-vdso := $(ccflags-vdso) \ > -O3 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \ > -mrelax-pic-calls $(call cc-option, -mexplicit-relocs) \ > -fno-stack-protector -fno-jump-tables -DDISABLE_BRANCH_PROFILING \ > - $(call cc-option, -fno-asynchronous-unwind-tables) > + $(call cc-option, -fno-asynchronous-unwind-tables) \ > + $(filter -ffile-prefix-map%,$(KBUILD_CFLAGS)) \ > + $(filter -fmacro-prefix-map%,$(KBUILD_CFLAGS)) \ > + $(filter -fdebug-prefix-map%,$(KBUILD_CFLAGS)) > aflags-vdso := $(ccflags-vdso) \ > + $(filter --debug-prefix-map%,$(KBUILD_AFLAGS)) \ > -D__ASSEMBLY__ -Wa,-gdwarf-2 > > ifneq ($(c-gettimeofday-y),) -- Best regards, Alexander Sverdlin.
