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[RFC][PATCH -tip 4/9] power: add kernel_trap_sp()
- From: Masami Hiramatsu <mhiramat at redhat dot com>
- To: Ingo Molnar <mingo at elte dot hu>, linuxppc-dev at ozlabs dot org
- Cc: Ananth N Mavinakayanahalli <ananth at in dot ibm dot com>, LKML <linux-kernel at vger dot kernel dot org>, systemtap-ml <systemtap at sources dot redhat dot com>, Steven Rostedt <rostedt at goodmis dot org>
- Date: Thu, 19 Mar 2009 17:10:23 -0400
- Subject: [RFC][PATCH -tip 4/9] power: add kernel_trap_sp()
Add kernel_trap_sp() on powerpc, based on systemtap's runtime/regs.h.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
---
arch/powerpc/include/asm/ptrace.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h
index c9c678f..0ac366c 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -83,6 +83,7 @@ struct pt_regs {
#define instruction_pointer(regs) ((regs)->nip)
#define user_stack_pointer(regs) ((regs)->gpr[1])
+#define kernel_trap_sp(regs) (user_stack_pointer(regs))
#define regs_return_value(regs) ((regs)->gpr[3])
#ifdef CONFIG_SMP
--
Masami Hiramatsu
Software Engineer
Hitachi Computer Products (America) Inc.
Software Solutions Division
e-mail: mhiramat@redhat.com