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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 <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220927150419.1503001-1-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman 2022-09-28 01:04:18 +10:00
parent 97f88a3d72
commit bbd7170908
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/include/asm/ptrace.h
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@ -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__