On Wednesday 13 September 2017 08:12 AM, Will Deacon wrote:
On Tue, Sep 12, 2017 at 10:54:28AM +0100, James Morse wrote:
Hi Pratyush,
On 01/09/17 06:48, Pratyush Anand wrote:
do_task_stat() calls get_wchan(), which further does unbind_frame().
unbind_frame() restores frame->pc to original
On Wednesday 13 September 2017 08:12 AM, Will Deacon wrote:
On Tue, Sep 12, 2017 at 10:54:28AM +0100, James Morse wrote:
Hi Pratyush,
On 01/09/17 06:48, Pratyush Anand wrote:
do_task_stat() calls get_wchan(), which further does unbind_frame().
unbind_frame() restores frame->pc to original
On Tue, Sep 12, 2017 at 10:54:28AM +0100, James Morse wrote:
> Hi Pratyush,
>
> On 01/09/17 06:48, Pratyush Anand wrote:
> > do_task_stat() calls get_wchan(), which further does unbind_frame().
> > unbind_frame() restores frame->pc to original value in case function
> > graph tracer has modified
On Tue, Sep 12, 2017 at 10:54:28AM +0100, James Morse wrote:
> Hi Pratyush,
>
> On 01/09/17 06:48, Pratyush Anand wrote:
> > do_task_stat() calls get_wchan(), which further does unbind_frame().
> > unbind_frame() restores frame->pc to original value in case function
> > graph tracer has modified
Hi Pratyush,
On 01/09/17 06:48, Pratyush Anand wrote:
> do_task_stat() calls get_wchan(), which further does unbind_frame().
> unbind_frame() restores frame->pc to original value in case function
> graph tracer has modified a return address (LR) in a stack frame to hook
> a function return.
Hi Pratyush,
On 01/09/17 06:48, Pratyush Anand wrote:
> do_task_stat() calls get_wchan(), which further does unbind_frame().
> unbind_frame() restores frame->pc to original value in case function
> graph tracer has modified a return address (LR) in a stack frame to hook
> a function return.
do_task_stat() calls get_wchan(), which further does unbind_frame().
unbind_frame() restores frame->pc to original value in case function
graph tracer has modified a return address (LR) in a stack frame to hook
a function return. However, if function graph tracer has hit a filtered
function, then
do_task_stat() calls get_wchan(), which further does unbind_frame().
unbind_frame() restores frame->pc to original value in case function
graph tracer has modified a return address (LR) in a stack frame to hook
a function return. However, if function graph tracer has hit a filtered
function, then
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