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    SubjectRe: [PATCH v2 07/16] powerpc: Skip objtool from running on VDSO files
    Date
    Peter Zijlstra <peterz@infradead.org> writes:
    > On Mon, Aug 29, 2022 at 11:22:14AM +0530, Sathvika Vasireddy wrote:
    >> Do not run objtool on VDSO files, by using
    >> OBJECT_FILES_NON_STANDARD
    >>
    >> Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    >> Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com>
    >> ---
    >> arch/powerpc/kernel/vdso/Makefile | 2 ++
    >> 1 file changed, 2 insertions(+)
    >>
    >> diff --git a/arch/powerpc/kernel/vdso/Makefile b/arch/powerpc/kernel/vdso/Makefile
    >> index 096b0bf1335f..a49a0d6a1c53 100644
    >> --- a/arch/powerpc/kernel/vdso/Makefile
    >> +++ b/arch/powerpc/kernel/vdso/Makefile
    >> @@ -102,3 +102,5 @@ quiet_cmd_vdso64ld_and_check = VDSO64L $@
    >> cmd_vdso64ld_and_check = $(VDSOCC) $(c_flags) $(CC64FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) ; $(cmd_vdso_check)
    >> quiet_cmd_vdso64as = VDSO64A $@
    >> cmd_vdso64as = $(VDSOCC) $(a_flags) $(CC64FLAGS) $(AS64FLAGS) -c -o $@ $<
    >> +
    >> +OBJECT_FILES_NON_STANDARD := y
    >
    > Just to clarify; your linker script will place the VDSO in .rodata or a
    > similar !.text section, right?

    Not the linker script, but we incbin it into .data.

    See arch/powerpc/kernel/vdso64_wrapper.S

    cheers

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