On 10/08/2014 11:30 PM, Will Deacon wrote:
On Thu, Oct 02, 2014 at 10:46:15AM +0100, AKASHI Takahiro wrote:
SIGSYS is primarily used in secure computing to notify tracer. This patch allows signal handler on compat task to get correct information with SA_SIGINFO specified when this signal is delivered.
Reviewed-by: Kees Cook keescook@chromium.org Signed-off-by: AKASHI Takahiro takahiro.akashi@linaro.org
arch/arm64/include/asm/compat.h | 7 +++++++ arch/arm64/kernel/signal32.c | 6 ++++++ 2 files changed, 13 insertions(+)
diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h index 253e33b..c877915 100644 --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -205,6 +205,13 @@ typedef struct compat_siginfo { compat_long_t _band; /* POLL_IN, POLL_OUT, POLL_MSG */ int _fd; } _sigpoll;
/* SIGSYS */struct {compat_uptr_t _call_addr; /* calling user insn */int _syscall; /* triggering system call number */unsigned int _arch; /* AUDIT_ARCH_* of syscall */nit, but compat_uint_t looks better here (I have no idea why I didn't do this for the signed int types, but hey).
I will fix it.
-Takahiro AKASHI
Will