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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2007-03-04 09:50:28 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-04-21 20:34:58 +0100 |
| commit | b2a0d36fde90fa9dd20b7dde21dbcff09b130b38 (patch) | |
| tree | 354fe85244f011e17e1c96243f5f7925ba16b6b6 /arch/arm/kernel/ptrace.c | |
| parent | 0f0a00beb80624a446ba7c0152cd171008eeab2e (diff) | |
| download | op-kernel-dev-b2a0d36fde90fa9dd20b7dde21dbcff09b130b38.zip op-kernel-dev-b2a0d36fde90fa9dd20b7dde21dbcff09b130b38.tar.gz | |
[ARM] ptrace: clean up single stepping support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/ptrace.c')
| -rw-r--r-- | arch/arm/kernel/ptrace.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 9254ba2..e594b84 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -457,13 +457,10 @@ void ptrace_cancel_bpt(struct task_struct *child) /* * Called by kernel/ptrace.c when detaching.. - * - * Make sure the single step bit is not set. */ void ptrace_disable(struct task_struct *child) { - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); + single_step_disable(child); } /* @@ -712,9 +709,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) else clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->exit_code = data; - /* make sure single-step breakpoint is gone. */ - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); + single_step_disable(child); wake_up_process(child); ret = 0; break; @@ -725,9 +720,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) * exit. */ case PTRACE_KILL: - /* make sure single-step breakpoint is gone. */ - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); + single_step_disable(child); if (child->exit_state != EXIT_ZOMBIE) { child->exit_code = SIGKILL; wake_up_process(child); @@ -742,7 +735,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = -EIO; if (!valid_signal(data)) break; - child->ptrace |= PT_SINGLESTEP; + single_step_enable(child); clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->exit_code = data; /* give it a chance to run. */ |
