On Sat, Jul 18, 2015 at 04:56:54PM +0200, Borislav Petkov wrote: > On Fri, Jul 17, 2015 at 11:47:18AM -0500, Josh Poimboeuf wrote: > > 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@xxxxxxxxxx> > > --- > > 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__ */ > > + > > #ifdef CONFIG_STACK_VALIDATION > > > +#define STACKVALIDATE_IGNORE_INSN \ > > + ".Ltemp" __stringify(__LINE__) ":;" \ > > + ".pushsection __stackvalidate_ignore_insn, \"a\";" \ > > + _ASM_ALIGN ";" \ > > + ".long .Ltemp" __stringify(__LINE__) " - .;" \ > > + ".popsection;" > > + > > #endif > > > Also, you should end your lines with "\n" so that the .s output looks > a bit more readable, not like now: > > #APP > # 30 "./arch/x86/include/asm/arch_hweight.h" 1 > 661: > .Ltemp32:;.pushsection __stackvalidate_ignore_insn, "a"; .balign 8 ;.long .Ltemp32 - .;.popsection;call __sw_hweight32 > 662: Ok, will fix both issues. Thanks. -- Josh -- To unsubscribe from this list: send the line "unsubscribe live-patching" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
