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    Subject[RFC PATCH 02/21] stackvalidate: Add C version of STACKVALIDATE_IGNORE_INSN
    Date
    Add a C inline asm string version of the STACKVALIDATE_IGNORE_INSN macro
    which tells stackvalidate to ignore the subsequent instruction.

    Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
    ---
    arch/x86/include/asm/stackvalidate.h | 9 +++++++++
    1 file changed, 9 insertions(+)

    diff --git a/arch/x86/include/asm/stackvalidate.h b/arch/x86/include/asm/stackvalidate.h
    index 2d23c23..dac935c 100644
    --- a/arch/x86/include/asm/stackvalidate.h
    +++ b/arch/x86/include/asm/stackvalidate.h
    @@ -23,6 +23,15 @@
    .endif
    .endm

    +#else /* !__ASSEMBLY__ */
    +
    +#define STACKVALIDATE_IGNORE_INSN \
    + ".Ltemp" __stringify(__LINE__) ":;" \
    + ".pushsection __stackvalidate_ignore_insn, \"a\";" \
    + _ASM_ALIGN ";" \
    + ".long .Ltemp" __stringify(__LINE__) " - .;" \
    + ".popsection;"
    +
    #endif /* __ASSEMBLY__ */

    #endif /* _ASM_X86_STACKVALIDATE_H */
    --
    2.1.0


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