* Steven Rostedt <[email protected]> wrote: > On Wed, 2005-08-03 at 06:56 -0400, linux-os (Dick Johnson) wrote: > > On Wed, 3 Aug 2005, Steven Rostedt wrote: > > The interrupt handler gets a pointer to a structure called "struct pt_regs". > > That contains, amongst other things, the registers pushed onto the stack > > during the interrupt. If the segments were kernel segments, the interrupt > > occurred while in kernel mode. But..... If you have any code that > > needs to know, it's horribly and irreparably broken beyond all > > repair. Interrupts need to be handled NOW, without regard to what > > got interrupted. > > > > By the time you get to __do_IRQ there's already more stuff on the > stack. And the pt_regs is arch specific so this doesn't help. the actual layout of pt_regs is arch-specific, but user_mode(regs) is pretty much generic across most arches. Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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