Re: Need help in understanding x86 syscall

Coywolf Qi Hunt
2005-08-11T16:59:59Z

On 8/12/05, Coywolf Qi Hunt <coywolf@gmail.com> wrote:
> On 8/12/05, Steven Rostedt <rostedt@goodmis.org> wrote:
> > On Thu, 2005-08-11 at 11:51 -0400, Steven Rostedt wrote:
> > >
> > > And booted it. The system is up and running, so I really don't think
> > > that the sysenter_entry is used for system calls.
> > >
> > > Not so "Clear as day"!
> >
> > And so, looking into sysenter_entry, it seems that my configurations
> > don't seem to use it. This jumps straight to system_call without ever
> > having to turn interrupts on.
> >
> > # cat /proc/cpuinfo
> > processor : 0
> > vendor_id : GenuineIntel
> > cpu family : 6
> > model : 8
> > model name : Pentium III (Coppermine)
> > stepping : 3
> > cpu MHz : 367.939
> > cache size : 256 KB
> > fdiv_bug : no
> > hlt_bug : no
> > f00f_bug : no
> > coma_bug : no
> > fpu : yes
> > fpu_exception : yes
> > cpuid level : 2
> > wp : yes
> > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> > mca cmov pat pse36 mmx fxsr sse
> > bogomips : 722.94
> >
> >
> > -- Steve
> >
>
> The cpu does have sep. Is it vanilla kernel?
>

Also glibc support.

--
Coywolf Qi Hunt