From: Masami Hiramatsu <mhiramat@redhat.com>
To: Martin Schwidefsky <schwidefsky@de.ibm.com>, Ingo Molnar <mingo@elte.hu>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
systemtap-ml <systemtap@sources.redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Subject: [RFC][PATCH -tip 5/9] s390: add kernel_trap_sp()
Date: Thu, 19 Mar 2009 17:10:30 -0400 [thread overview]
Message-ID: <49C2B4C6.7030802@redhat.com> (raw)
Add kernel_trap_sp() on s390 (and cleanup a bit), based on systemtap's
runtime/regs.h.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
arch/s390/include/asm/ptrace.h | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index 8920025..304b413 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -491,8 +491,9 @@ extern void user_disable_single_step(struct task_struct *);
#define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
#define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
-#define user_stack_pointer(regs)((regs)->gprs[15])
-#define regs_return_value(regs)((regs)->gprs[2])
+#define user_stack_pointer(regs) ((regs)->gprs[15])
+#define kernel_trap_sp(regs) (user_stack_pointer(regs))
+#define regs_return_value(regs) ((regs)->gprs[2])
#define profile_pc(regs) instruction_pointer(regs)
extern void show_regs(struct pt_regs * regs);
#endif /* __KERNEL__ */
--
Masami Hiramatsu
Software Engineer
Hitachi Computer Products (America) Inc.
Software Solutions Division
e-mail: mhiramat@redhat.com
reply other threads:[~2009-03-19 21:11 UTC|newest]
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