On Wed, Nov 5, 2014 at 6:40 PM, AKASHI Takahiro
wrote:
> Hi Will, Kees
>
> #Sorry for this late ping,
>
>
> On 10/09/2014 06:23 PM, Will Deacon wrote:
>>
>> On Wed, Oct 08, 2014 at 04:30:18PM +0100, Kees Cook wrote:
>>>
>>> On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon wrote:
On Thu, Oct
On Wed, Nov 5, 2014 at 6:40 PM, AKASHI Takahiro
takahiro.aka...@linaro.org wrote:
Hi Will, Kees
#Sorry for this late ping,
On 10/09/2014 06:23 PM, Will Deacon wrote:
On Wed, Oct 08, 2014 at 04:30:18PM +0100, Kees Cook wrote:
On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon will.dea...@arm.com
Hi Will, Kees
#Sorry for this late ping,
On 10/09/2014 06:23 PM, Will Deacon wrote:
On Wed, Oct 08, 2014 at 04:30:18PM +0100, Kees Cook wrote:
On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon wrote:
On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
diff --git
Hi Will, Kees
#Sorry for this late ping,
On 10/09/2014 06:23 PM, Will Deacon wrote:
On Wed, Oct 08, 2014 at 04:30:18PM +0100, Kees Cook wrote:
On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon will.dea...@arm.com wrote:
On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
diff --git
On Wed, Oct 08, 2014 at 04:30:18PM +0100, Kees Cook wrote:
> On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon wrote:
> > On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
> >> diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
> >> index fe63ac5..2842f9f 100644
> >>
On Wed, Oct 08, 2014 at 04:30:18PM +0100, Kees Cook wrote:
On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon will.dea...@arm.com wrote:
On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index fe63ac5..2842f9f
On 10/09/2014 12:30 AM, Kees Cook wrote:
On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon wrote:
Hi Akashi,
On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
To allow tracer to be able to change/skip a system call by re-writing
a syscall number, there are several approaches:
(1)
On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon wrote:
> Hi Akashi,
>
> On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
>> To allow tracer to be able to change/skip a system call by re-writing
>> a syscall number, there are several approaches:
>>
>> (1) modify x8 register with
Hi Akashi,
On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
> To allow tracer to be able to change/skip a system call by re-writing
> a syscall number, there are several approaches:
>
> (1) modify x8 register with ptrace(PTRACE_SETREGSET), and handle this case
> later on in
Hi Akashi,
On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
To allow tracer to be able to change/skip a system call by re-writing
a syscall number, there are several approaches:
(1) modify x8 register with ptrace(PTRACE_SETREGSET), and handle this case
later on in
On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon will.dea...@arm.com wrote:
Hi Akashi,
On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
To allow tracer to be able to change/skip a system call by re-writing
a syscall number, there are several approaches:
(1) modify x8 register
On 10/09/2014 12:30 AM, Kees Cook wrote:
On Wed, Oct 8, 2014 at 9:13 AM, Will Deacon will.dea...@arm.com wrote:
Hi Akashi,
On Thu, Oct 02, 2014 at 10:46:11AM +0100, AKASHI Takahiro wrote:
To allow tracer to be able to change/skip a system call by re-writing
a syscall number, there are several
To allow tracer to be able to change/skip a system call by re-writing
a syscall number, there are several approaches:
(1) modify x8 register with ptrace(PTRACE_SETREGSET), and handle this case
later on in syscall_trace_enter(), or
(2) support ptrace(PTRACE_SET_SYSCALL) as on arm
Thinking of
To allow tracer to be able to change/skip a system call by re-writing
a syscall number, there are several approaches:
(1) modify x8 register with ptrace(PTRACE_SETREGSET), and handle this case
later on in syscall_trace_enter(), or
(2) support ptrace(PTRACE_SET_SYSCALL) as on arm
Thinking of
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