2012-11-21 07:36:16

by H. Peter Anvin

[permalink] [raw]
Subject: [tip:x86/urgent] x86-32: Export kernel_stack_pointer() for modules

Commit-ID: cb57a2b4cff7edf2a4e32c0163200e9434807e0a
Gitweb: http://git.kernel.org/tip/cb57a2b4cff7edf2a4e32c0163200e9434807e0a
Author: H. Peter Anvin <[email protected]>
AuthorDate: Tue, 20 Nov 2012 22:21:02 -0800
Committer: H. Peter Anvin <[email protected]>
CommitDate: Tue, 20 Nov 2012 22:23:23 -0800

x86-32: Export kernel_stack_pointer() for modules

Modules, in particular oprofile (and possibly other similar tools)
need kernel_stack_pointer(), so export it using EXPORT_SYMBOL_GPL().

Cc: Yang Wei <[email protected]>
Cc: Robert Richter <[email protected]>
Cc: Jun Zhang <[email protected]>
Cc: <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: H. Peter Anvin <[email protected]>
---
arch/x86/kernel/ptrace.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 2484e33..5e0596b 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -22,6 +22,7 @@
#include <linux/perf_event.h>
#include <linux/hw_breakpoint.h>
#include <linux/rcupdate.h>
+#include <linux/module.h>

#include <asm/uaccess.h>
#include <asm/pgtable.h>
@@ -193,6 +194,7 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)

return (unsigned long)regs;
}
+EXPORT_SYMBOL_GPL(kernel_stack_pointer);

static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
{