x86-32: Export kernel_stack_pointer() for modules

H. Peter Anvin · H. Peter Anvin · commit cb57a2b4cff7 · 2012-11-20T22:23:23.000-08:00
Modules, in particular oprofile (and possibly other similar tools) need kernel_stack_pointer(), so export it using EXPORT_SYMBOL_GPL(). Cc: Yang Wei <wei.yang@windriver.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Jun Zhang <jun.zhang@intel.com> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/20120912135059.GZ8285@erda.amd.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
diff --git 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)
 {

Original file line number	Diff line number	Diff line change
`@@ -22,6 +22,7 @@`
`22`	`22`	`#include <linux/perf_event.h>`
`23`	`23`	`#include <linux/hw_breakpoint.h>`
`24`	`24`	`#include <linux/rcupdate.h>`
	`25`	`+#include <linux/module.h>`
`25`	`26`
`26`	`27`	`#include <asm/uaccess.h>`
`27`	`28`	`#include <asm/pgtable.h>`
`@@ -193,6 +194,7 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)`
`193`	`194`
`194`	`195`	`return (unsigned long)regs;`
`195`	`196`	`}`
	`197`	`+EXPORT_SYMBOL_GPL(kernel_stack_pointer);`
`196`	`198`
`197`	`199`	`static unsigned long pt_regs_access(struct pt_regs regs, unsigned long regno)`
`198`	`200`	`{`