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| author | Kyle McMartin <kyle@mcmartin.ca> | 2009-09-27 23:03:02 -0400 |
|---|---|---|
| committer | Kyle McMartin <kyle@ihatethathostname.lab.bos.redhat.com> | 2009-09-27 23:07:22 -0400 |
| commit | ecd3d4bc06e48357d12e730482577c756a9f2dbc (patch) | |
| tree | 36f683170f874157103cc962f4a3d3d85771e480 /arch/parisc/kernel/ptrace.c | |
| parent | 2798af1abb5d560b926fd07ec58c5dcc6d3484d8 (diff) | |
| download | blackbird-op-linux-ecd3d4bc06e48357d12e730482577c756a9f2dbc.tar.gz blackbird-op-linux-ecd3d4bc06e48357d12e730482577c756a9f2dbc.zip | |
parisc: stop using task->ptrace for {single,block}step flags
task->ptrace flags belong to generic code, so instead thief some
TIF_ bits to use. Somewhat risky conversion of code to test TASK_FLAGS
instead of TASK_PTRACE in assembly, but it looks alright in the end.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Diffstat (limited to 'arch/parisc/kernel/ptrace.c')
| -rw-r--r-- | arch/parisc/kernel/ptrace.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c index 08f6d2cbf0e0..c4f49e45129d 100644 --- a/arch/parisc/kernel/ptrace.c +++ b/arch/parisc/kernel/ptrace.c @@ -36,7 +36,8 @@ */ void ptrace_disable(struct task_struct *task) { - task->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP); + clear_tsk_thread_flag(task, TIF_SINGLESTEP); + clear_tsk_thread_flag(task, TIF_BLOCKSTEP); /* make sure the trap bits are not set */ pa_psw(task)->r = 0; @@ -56,8 +57,8 @@ void user_disable_single_step(struct task_struct *task) void user_enable_single_step(struct task_struct *task) { - task->ptrace &= ~PT_BLOCKSTEP; - task->ptrace |= PT_SINGLESTEP; + clear_tsk_thread_flag(task, TIF_BLOCKSTEP); + set_tsk_thread_flag(task, TIF_SINGLESTEP); if (pa_psw(task)->n) { struct siginfo si; @@ -99,8 +100,8 @@ void user_enable_single_step(struct task_struct *task) void user_enable_block_step(struct task_struct *task) { - task->ptrace &= ~PT_SINGLESTEP; - task->ptrace |= PT_BLOCKSTEP; + clear_tsk_thread_flag(task, TIF_SINGLESTEP); + set_tsk_thread_flag(task, TIF_BLOCKSTEP); /* Enable taken branch trap. */ pa_psw(task)->r = 0; @@ -275,7 +276,8 @@ long do_syscall_trace_enter(struct pt_regs *regs) void do_syscall_trace_exit(struct pt_regs *regs) { - int stepping = !!(current->ptrace & (PT_SINGLESTEP|PT_BLOCKSTEP)); + int stepping = test_thread_flag(TIF_SINGLESTEP) || + test_thread_flag(TIF_BLOCKSTEP); if (stepping || test_thread_flag(TIF_SYSCALL_TRACE)) tracehook_report_syscall_exit(regs, stepping); |
