From: Simon Marchi <simon.marchi@polymtl.ca>
To: cmetcalf@tilera.com
Cc: linux-kernel@vger.kernel.org, Simon Marchi <simon.marchi@polymtl.ca>
Subject: [PATCH 2/3] arch/tile: Implement user_stack_pointer
Date: Sat, 22 Dec 2012 00:21:11 -0500 [thread overview]
Message-ID: <1356153672-17545-2-git-send-email-simon.marchi@polymtl.ca> (raw)
In-Reply-To: <1356153672-17545-1-git-send-email-simon.marchi@polymtl.ca>
It is needed when we turn on HAVE_ARCH_TRACEHOOK.
Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
---
arch/tile/include/asm/ptrace.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/tile/include/asm/ptrace.h b/arch/tile/include/asm/ptrace.h
index 5ce052e..4be42fb 100644
--- a/arch/tile/include/asm/ptrace.h
+++ b/arch/tile/include/asm/ptrace.h
@@ -80,6 +80,11 @@ struct task_struct;
extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
int error_code);
+static inline unsigned long user_stack_pointer(struct pt_regs *regs)
+{
+ return regs->sp;
+}
+
#ifdef __tilegx__
/* We need this since sigval_t has a user pointer in it, for GETSIGINFO etc. */
#define __ARCH_WANT_COMPAT_SYS_PTRACE
--
1.7.1
next prev parent reply other threads:[~2012-12-22 5:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-22 5:21 [PATCH 1/3] arch/tile: Call tracehook_report_syscall_{entry,exit} in syscall trace Simon Marchi
2012-12-22 5:21 ` Simon Marchi [this message]
2012-12-22 6:03 ` [PATCH 2/3] arch/tile: Implement user_stack_pointer Al Viro
2012-12-22 5:21 ` [PATCH 3/3] arch/tile: Enable HAVE_ARCH_TRACEHOOK Simon Marchi
2012-12-26 18:42 ` [PATCH 1/3] arch/tile: Call tracehook_report_syscall_{entry,exit} in syscall trace Chris Metcalf
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