Re: [PATCH v4 6/6] arm64: ftrace: add arch-specific stack tracer

2015-11-04 Thread yalin wang
> On Oct 30, 2015, at 13:25, AKASHI Takahiro wrote: > > Stack tracer on arm64, check_stack(), is uniqeue in the following > points: > * analyze a function prologue of a traced function to estimate a more > accurate stack pointer value, replacing naive ' + 0x10.' > * use walk_stackframe(), inste

Re: [PATCH v4 6/6] arm64: ftrace: add arch-specific stack tracer

2015-11-04 Thread AKASHI Takahiro
Jungseok, On 11/01/2015 05:30 PM, Jungseok Lee wrote: On Oct 30, 2015, at 2:25 PM, AKASHI Takahiro wrote: Hi Akashi, Stack tracer on arm64, check_stack(), is uniqeue in the following points: * analyze a function prologue of a traced function to estimate a more accurate stack pointer value,

Re: [PATCH v4 6/6] arm64: ftrace: add arch-specific stack tracer

2015-11-01 Thread Jungseok Lee
On Oct 30, 2015, at 2:25 PM, AKASHI Takahiro wrote: Hi Akashi, > Stack tracer on arm64, check_stack(), is uniqeue in the following > points: > * analyze a function prologue of a traced function to estimate a more > accurate stack pointer value, replacing naive ' + 0x10.' > * use walk_stackframe(

[PATCH v4 6/6] arm64: ftrace: add arch-specific stack tracer

2015-10-29 Thread AKASHI Takahiro
Stack tracer on arm64, check_stack(), is uniqeue in the following points: * analyze a function prologue of a traced function to estimate a more accurate stack pointer value, replacing naive ' + 0x10.' * use walk_stackframe(), instead of slurping stack contents as orignal check_stack() does, to