From bbd71709087a9d486d1da42399eec14e106072f2 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 28 Sep 2022 01:04:18 +1000 Subject: powerpc: Make stack frame marker upper case Now that the stack frame regs marker is only 32-bits it is not as obvious in memory dumps and easier to miss, eg: c000000004733e40 0000000000000000 0000000000000000 |................| c000000004733e50 0000000000000000 0000000000000000 |................| c000000004733e60 0000000000000000 0000000000000000 |................| c000000004733e70 7367657200000000 0000000000000000 |sger............| c000000004733e80 a700000000000000 708897f7ff7f0000 |........p.......| c000000004733e90 0073428fff7f0000 208997f7ff7f0000 |.sB..... .......| c000000004733ea0 0100000000000000 ffffffffffffffff |................| c000000004733eb0 0000000000000000 0000000000000000 |................| So make it upper case to make it stand out a bit more: c000000004733e70 5347455200000000 0000000000000000 |SGER............| Acked-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220927150419.1503001-1-mpe@ellerman.id.au --- arch/powerpc/include/asm/ptrace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index 5b496e589d54..6c23d1d25dc7 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -99,7 +99,7 @@ struct pt_regs #define STACK_FRAME_WITH_PT_REGS (STACK_FRAME_OVERHEAD + sizeof(struct pt_regs)) -#define STACK_FRAME_REGS_MARKER ASM_CONST(0x72656773) +#define STACK_FRAME_REGS_MARKER ASM_CONST(0x52454753) #ifdef __powerpc64__ -- cgit v1.2.3