It checks whether exception happened in user mode or supervisor mode
On Jun 20, 2012 5:15 PM, "sumeet linux" wrote:
> Hi All,
>
> What is the meaning of user_mode(regs) macro ? What does it do ?
> This macro used in many files in kernel like signal.c, trap.c, process.c
> files.
> From the code i
On Wed, Jun 20, 2012 at 6:45 PM, sumeet linux wrote:
> Hi All,
>
> What is the meaning of user_mode(regs) macro ? What does it do ?
I assume you were referring to:
http://lxr.linux.no/#linux+v3.4.3/arch/x86/include/asm/ptrace.h#L164
right?
let me paste the code here:
return !!(regs->cs & 3)
A
Hi All,
What is the meaning of user_mode(regs) macro ? What does it do ?
This macro used in many files in kernel like signal.c, trap.c, process.c
files.
>From the code it looks like it checks is in USER mode or KERNEL mode, but
still not clear on usage and implementation of this macro.
Thanks.
