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-rw-r--r--tools/include/linux/coresight-pmu.h6
-rw-r--r--tools/include/linux/string.h12
2 files changed, 16 insertions, 2 deletions
diff --git a/tools/include/linux/coresight-pmu.h b/tools/include/linux/coresight-pmu.h
index 7d410260661b..edfeaba95429 100644
--- a/tools/include/linux/coresight-pmu.h
+++ b/tools/include/linux/coresight-pmu.h
@@ -24,6 +24,12 @@
/* ETMv3.5/PTM's ETMCR config bit */
#define ETM_OPT_CYCACC 12
#define ETM_OPT_TS 28
+#define ETM_OPT_RETSTK 29
+
+/* ETMv4 CONFIGR programming bits for the ETM OPTs */
+#define ETM4_CFG_BIT_CYCACC 4
+#define ETM4_CFG_BIT_TS 11
+#define ETM4_CFG_BIT_RETSTK 12
static inline int coresight_get_trace_id(int cpu)
{
diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h
index d62b56cf8c12..a30fad536f52 100644
--- a/tools/include/linux/string.h
+++ b/tools/include/linux/string.h
@@ -1,8 +1,8 @@
#ifndef _TOOLS_LINUX_STRING_H_
#define _TOOLS_LINUX_STRING_H_
-
#include <linux/types.h> /* for size_t */
+#include <string.h>
void *memdup(const void *src, size_t len);
@@ -18,6 +18,14 @@ extern size_t strlcpy(char *dest, const char *src, size_t size);
char *str_error_r(int errnum, char *buf, size_t buflen);
-int prefixcmp(const char *str, const char *prefix);
+/**
+ * strstarts - does @str start with @prefix?
+ * @str: string to examine
+ * @prefix: prefix to look for.
+ */
+static inline bool strstarts(const char *str, const char *prefix)
+{
+ return strncmp(str, prefix, strlen(prefix)) == 0;
+}
#endif /* _LINUX_STRING_H_ */