diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2009-12-16 01:47:18 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 16:20:08 +0100 |
| commit | 25baa35befeebe6a4a8d8d12a4fc5b95918bda54 (patch) | |
| tree | 5634f996ac4e2067d2e1cc21b955eafbf9adb581 /arch/powerpc | |
| parent | ptrace: introduce user_single_step_siginfo() helper (diff) | |
| download | linux-25baa35befeebe6a4a8d8d12a4fc5b95918bda54.tar.xz linux-25baa35befeebe6a4a8d8d12a4fc5b95918bda54.zip | |
ptrace: powerpc: implement user_single_step_siginfo()
Suggested by Roland.
Implement user_single_step_siginfo() for powerpc.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: <linux-arch@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/ptrace.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 9 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index 8c341490cfc5..cbd759e3cd78 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -140,6 +140,8 @@ extern void user_enable_single_step(struct task_struct *); extern void user_enable_block_step(struct task_struct *); extern void user_disable_single_step(struct task_struct *); +#define ARCH_HAS_USER_SINGLE_STEP_INFO + #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 804f0f30f227..d069ff8a7e03 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -174,6 +174,15 @@ int die(const char *str, struct pt_regs *regs, long err) return 0; } +void user_single_step_siginfo(struct task_struct *tsk, + struct pt_regs *regs, siginfo_t *info) +{ + memset(info, 0, sizeof(*info)); + info->si_signo = SIGTRAP; + info->si_code = TRAP_TRACE; + info->si_addr = (void __user *)regs->nip; +} + void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr) { siginfo_t info; |