Re: [RFC v5 33/38] powerpc: Deliver SEGV signal on pkey violation
From: Anshuman Khandual <hidden>
Date: 2017-07-10 03:11:59
Also in:
linux-arch, linux-mm, lkml
On 07/06/2017 02:52 AM, Ram Pai wrote:
quoted hunk ↗ jump to hunk
The value of the AMR register at the time of exception is made available in gp_regs[PT_AMR] of the siginfo. The value of the pkey, whose protection got violated, is made available in si_pkey field of the siginfo structure. Signed-off-by: Ram Pai <redacted> --- arch/powerpc/include/uapi/asm/ptrace.h | 3 ++- arch/powerpc/kernel/signal_32.c | 5 +++++ arch/powerpc/kernel/signal_64.c | 4 ++++ arch/powerpc/kernel/traps.c | 14 ++++++++++++++ 4 files changed, 25 insertions(+), 1 deletions(-)diff --git a/arch/powerpc/include/uapi/asm/ptrace.h b/arch/powerpc/include/uapi/asm/ptrace.h index 8036b38..7ec2428 100644 --- a/arch/powerpc/include/uapi/asm/ptrace.h +++ b/arch/powerpc/include/uapi/asm/ptrace.h@@ -108,8 +108,9 @@ struct pt_regs { #define PT_DAR 41 #define PT_DSISR 42 #define PT_RESULT 43 -#define PT_DSCR 44 #define PT_REGS_COUNT 44 +#define PT_DSCR 44 +#define PT_AMR 45
Why PT_DSCR was moved down ? This change is redundant here.