diff options
Diffstat (limited to 'arch/powerpc/include/asm/ptrace.h')
| -rw-r--r-- | arch/powerpc/include/asm/ptrace.h | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index 2efec6d87049..0eb90a013346 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -97,8 +97,6 @@ struct pt_regs #endif -#define STACK_FRAME_WITH_PT_REGS (STACK_FRAME_OVERHEAD + sizeof(struct pt_regs)) - // Always displays as "REGS" in memory dumps #ifdef CONFIG_CPU_BIG_ENDIAN #define STACK_FRAME_REGS_MARKER ASM_CONST(0x52454753) @@ -120,16 +118,27 @@ struct pt_regs #define USER_REDZONE_SIZE 512 #define KERNEL_REDZONE_SIZE 288 -#define STACK_FRAME_OVERHEAD 112 /* size of minimum stack frame */ #define STACK_FRAME_LR_SAVE 2 /* Location of LR in stack frame */ -#define STACK_INT_FRAME_SIZE (sizeof(struct pt_regs) + \ - STACK_FRAME_OVERHEAD + KERNEL_REDZONE_SIZE) -#define STACK_FRAME_MARKER 12 #ifdef CONFIG_PPC64_ELF_ABI_V2 #define STACK_FRAME_MIN_SIZE 32 +#define STACK_USER_INT_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE + 16) +#define STACK_INT_FRAME_REGS (STACK_FRAME_MIN_SIZE + 16) +#define STACK_INT_FRAME_MARKER STACK_FRAME_MIN_SIZE +#define STACK_SWITCH_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE + 16) +#define STACK_SWITCH_FRAME_REGS (STACK_FRAME_MIN_SIZE + 16) #else -#define STACK_FRAME_MIN_SIZE STACK_FRAME_OVERHEAD +/* + * The ELFv1 ABI specifies 48 bytes plus a minimum 64 byte parameter save + * area. This parameter area is not used by calls to C from interrupt entry, + * so the second from last one of those is used for the frame marker. + */ +#define STACK_FRAME_MIN_SIZE 112 +#define STACK_USER_INT_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE) +#define STACK_INT_FRAME_REGS STACK_FRAME_MIN_SIZE +#define STACK_INT_FRAME_MARKER (STACK_FRAME_MIN_SIZE - 16) +#define STACK_SWITCH_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE) +#define STACK_SWITCH_FRAME_REGS STACK_FRAME_MIN_SIZE #endif /* Size of dummy stack frame allocated when calling signal handler. */ @@ -140,17 +149,22 @@ struct pt_regs #define USER_REDZONE_SIZE 0 #define KERNEL_REDZONE_SIZE 0 -#define STACK_FRAME_OVERHEAD 16 /* size of minimum stack frame */ +#define STACK_FRAME_MIN_SIZE 16 #define STACK_FRAME_LR_SAVE 1 /* Location of LR in stack frame */ -#define STACK_INT_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_OVERHEAD) -#define STACK_FRAME_MARKER 2 -#define STACK_FRAME_MIN_SIZE STACK_FRAME_OVERHEAD +#define STACK_USER_INT_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE) +#define STACK_INT_FRAME_REGS STACK_FRAME_MIN_SIZE +#define STACK_INT_FRAME_MARKER (STACK_FRAME_MIN_SIZE - 8) +#define STACK_SWITCH_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE) +#define STACK_SWITCH_FRAME_REGS STACK_FRAME_MIN_SIZE /* Size of stack frame allocated when calling signal handler. */ #define __SIGNAL_FRAMESIZE 64 #endif /* __powerpc64__ */ +#define STACK_INT_FRAME_SIZE (KERNEL_REDZONE_SIZE + STACK_USER_INT_FRAME_SIZE) +#define STACK_INT_FRAME_MARKER_LONGS (STACK_INT_FRAME_MARKER/sizeof(long)) + #ifndef __ASSEMBLY__ #include <asm/paca.h> |