On 08/14, Sebastian Andrzej Siewior wrote:
>
> On 08/13/2012 03:24 PM, Oleg Nesterov wrote:
>>
>> this patch still adds restore_flags into arch_uprobe_task.
>
> Yes, but
OOPS. Yes, we need a new member in ->utask now to record the state
of TIF_SINGLESTEP (X86_EFLAGS_TF actually).
I meant that,
On 08/13/2012 03:24 PM, Oleg Nesterov wrote:
On 08/09, Sebastian Andrzej Siewior wrote:
v1..v2: re-use auprobe->fixups for fixups
Yes, but
@@ -46,6 +46,8 @@ struct arch_uprobe_task {
#ifdef CONFIG_X86_64
unsigned long saved_scratch_register;
#endif
+#define
On 08/13/2012 03:24 PM, Oleg Nesterov wrote:
On 08/09, Sebastian Andrzej Siewior wrote:
v1..v2: re-use auprobe-fixups for fixups
Yes, but
@@ -46,6 +46,8 @@ struct arch_uprobe_task {
#ifdef CONFIG_X86_64
unsigned long saved_scratch_register;
#endif
+#define
On 08/14, Sebastian Andrzej Siewior wrote:
On 08/13/2012 03:24 PM, Oleg Nesterov wrote:
this patch still adds restore_flags into arch_uprobe_task.
Yes, but
OOPS. Yes, we need a new member in -utask now to record the state
of TIF_SINGLESTEP (X86_EFLAGS_TF actually).
I meant that, since the
On 08/09, Sebastian Andrzej Siewior wrote:
>
> v1..v2: re-use auprobe->fixups for fixups
Yes, but
> @@ -46,6 +46,8 @@ struct arch_uprobe_task {
> #ifdef CONFIG_X86_64
> unsigned long saved_scratch_register;
> #endif
> +#define UPROBE_CLEAR_TF (1 <<
On 08/09, Sebastian Andrzej Siewior wrote:
v1..v2: re-use auprobe-fixups for fixups
Yes, but
@@ -46,6 +46,8 @@ struct arch_uprobe_task {
#ifdef CONFIG_X86_64
unsigned long saved_scratch_register;
#endif
+#define UPROBE_CLEAR_TF (1 0)
+
The arch specific implementation behaves like user_enable_single_step()
except that it does not disable single stepping if it was already
enabled. This allows the debugger to single step over an uprobe.
The state of block stepping is not restored. It makes only sense
together with TF and if that
The arch specific implementation behaves like user_enable_single_step()
except that it does not disable single stepping if it was already
enabled. This allows the debugger to single step over an uprobe.
The state of block stepping is not restored. It makes only sense
together with TF and if that
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