[patch 7/9] x86, pebs: export ds.c symbols

[Markus Metzger <markus.t.metzger@intel.com>]

Export symbols in ds.c.

The changes are required to allow perfmon2 to access DS.

Reported-by: Stephane Eranian <eranian@googlemail.com>
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
---

Index: ftrace/arch/x86/kernel/ds.c
===================================================================
--- ftrace.orig/arch/x86/kernel/ds.c	2008-11-25 08:18:03.000000000 +0100
+++ ftrace/arch/x86/kernel/ds.c	2008-11-25 08:18:04.000000000 +0100
@@ -28,6 +28,7 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 
 
 /*
@@ -419,6 +420,7 @@
  out:
 	return ERR_PTR(error);
 }
+EXPORT_SYMBOL(ds_request_bts);
 
 struct pebs_tracer *ds_request_pebs(struct task_struct *task,
 				    void *base, size_t size,
@@ -449,6 +451,7 @@
  out:
 	return ERR_PTR(error);
 }
+EXPORT_SYMBOL(ds_request_pebs);
 
 static void ds_release(struct ds_tracer *tracer, enum ds_qualifier qual)
 {
@@ -469,6 +472,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_release_bts);
 
 int ds_release_pebs(struct pebs_tracer *tracer)
 {
@@ -480,6 +484,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_release_pebs);
 
 static size_t ds_get_index(struct ds_context *context, enum ds_qualifier qual)
 {
@@ -503,6 +508,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_get_bts_index);
 
 int ds_get_pebs_index(struct pebs_tracer *tracer, size_t *pos)
 {
@@ -516,6 +522,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_get_pebs_index);
 
 static size_t ds_get_end(struct ds_context *context, enum ds_qualifier qual)
 {
@@ -539,6 +546,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_get_bts_end);
 
 int ds_get_pebs_end(struct pebs_tracer *tracer, size_t *pos)
 {
@@ -552,6 +560,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_get_pebs_end);
 
 static int ds_access(struct ds_context *context, enum ds_qualifier qual,
 		     size_t index, const void **record)
@@ -580,6 +589,7 @@
 
 	return ds_access(tracer->ds.context, ds_bts, index, record);
 }
+EXPORT_SYMBOL(ds_access_bts);
 
 int ds_access_pebs(struct pebs_tracer *tracer, size_t index,
 		   const void **record)
@@ -589,6 +599,7 @@
 
 	return ds_access(tracer->ds.context, ds_pebs, index, record);
 }
+EXPORT_SYMBOL(ds_access_pebs);
 
 static int ds_write(struct ds_context *context, enum ds_qualifier qual,
 		    const void *record, size_t size)
@@ -660,6 +671,7 @@
 
 	return ds_write(tracer->ds.context, ds_bts, record, size);
 }
+EXPORT_SYMBOL(ds_write_bts);
 
 int ds_write_pebs(struct pebs_tracer *tracer, const void *record, size_t size)
 {
@@ -668,6 +680,7 @@
 
 	return ds_write(tracer->ds.context, ds_pebs, record, size);
 }
+EXPORT_SYMBOL(ds_write_pebs);
 
 static void ds_reset_or_clear(struct ds_context *context,
 			      enum ds_qualifier qual, int clear)
@@ -692,6 +705,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_reset_bts);
 
 int ds_reset_pebs(struct pebs_tracer *tracer)
 {
@@ -702,6 +716,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_reset_pebs);
 
 int ds_clear_bts(struct bts_tracer *tracer)
 {
@@ -712,6 +727,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_clear_bts);
 
 int ds_clear_pebs(struct pebs_tracer *tracer)
 {
@@ -722,6 +738,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_clear_pebs);
 
 int ds_get_pebs_reset(struct pebs_tracer *tracer, u64 *value)
 {
@@ -735,6 +752,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_get_pebs_reset);
 
 int ds_set_pebs_reset(struct pebs_tracer *tracer, u64 value)
 {
@@ -745,6 +763,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(ds_set_pebs_reset);
 
 static const struct ds_configuration ds_cfg_var = {
 	.sizeof_ds    = sizeof(long) * 12,
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