Re: [PATCH] kgdbts: unify/generalize gdb breakpoint adjustment

From: Mike Frysinger
Date: Thu Jun 04 2009 - 20:55:49 EST


On Thu, Jun 4, 2009 at 20:50, Andrew Morton wrote:
> On Tue, Â2 Jun 2009 03:17:30 -0400
> Mike Frysinger <vapier@xxxxxxxxxx> wrote:
>
>> + Â Â instruction_pointer(&kgdbts_regs) += offset;
>
> instruction_pointer() cannot be used as an lvalue, thankfully.
>
> x86_64:
>
> drivers/misc/kgdbts.c: In function 'check_and_rewind_pc':
> drivers/misc/kgdbts.c:306: error: invalid lvalue in assignment

should be easy to fix:
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -236,10 +236,7 @@
#endif
}

-static inline unsigned long instruction_pointer(struct pt_regs *regs)
-{
- return regs->ip;
-}
+#define instruction_pointer(regs) ((regs)->ip)

static inline unsigned long frame_pointer(struct pt_regs *regs)
{
-mike
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/