diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2012-08-17 08:22:04 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-10-29 21:25:11 +0100 |
| commit | c0ff3c53d4f99f5e0ac5fc30ad77f26159b347e0 (patch) | |
| tree | ace67e4403900863e8532068c9caa120aa726d0a /arch/mips/include/asm/ptrace.h | |
| parent | 6a9c001b7ec3ae6639f97a5b7ea4b0ea35053b18 (diff) | |
MIPS: Enable HAVE_ARCH_TRACEHOOK.
This enables /proc/<pid>/syscall and the ptrace PTRACE_GETREGSET and
PTRACE_SETREGSET operations.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/ptrace.h')
| -rw-r--r-- | arch/mips/include/asm/ptrace.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h index 5e6cd0947393..7bba9da110af 100644 --- a/arch/mips/include/asm/ptrace.h +++ b/arch/mips/include/asm/ptrace.h @@ -81,7 +81,6 @@ static inline long regs_return_value(struct pt_regs *regs) #define instruction_pointer(regs) ((regs)->cp0_epc) #define profile_pc(regs) instruction_pointer(regs) -#define user_stack_pointer(r) ((r)->regs[29]) extern asmlinkage void syscall_trace_enter(struct pt_regs *regs); extern asmlinkage void syscall_trace_leave(struct pt_regs *regs); @@ -100,4 +99,17 @@ static inline void die_if_kernel(const char *str, struct pt_regs *regs) (struct pt_regs *)((sp | (THREAD_SIZE - 1)) + 1 - 32) - 1; \ }) +/* Helpers for working with the user stack pointer */ + +static inline unsigned long user_stack_pointer(struct pt_regs *regs) +{ + return regs->regs[29]; +} + +static inline void user_stack_pointer_set(struct pt_regs *regs, + unsigned long val) +{ + regs->regs[29] = val; +} + #endif /* _ASM_PTRACE_H */ |