File-copy from v4.4.100

This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Please refer to that tree for all history prior to this point.

Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
new file mode 100644
index 0000000..90129ac
--- /dev/null
+++ b/tools/perf/perf.h
@@ -0,0 +1,81 @@
+#ifndef _PERF_PERF_H
+#define _PERF_PERF_H
+
+#include <time.h>
+#include <stdbool.h>
+#include <linux/types.h>
+#include <linux/perf_event.h>
+
+extern bool test_attr__enabled;
+void test_attr__init(void);
+void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
+		     int fd, int group_fd, unsigned long flags);
+
+#define HAVE_ATTR_TEST
+#include "perf-sys.h"
+
+#ifndef NSEC_PER_SEC
+# define NSEC_PER_SEC			1000000000ULL
+#endif
+#ifndef NSEC_PER_USEC
+# define NSEC_PER_USEC			1000ULL
+#endif
+
+static inline unsigned long long rdclock(void)
+{
+	struct timespec ts;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+	return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
+}
+
+#define MAX_NR_CPUS			1024
+
+extern const char *input_name;
+extern bool perf_host, perf_guest;
+extern const char perf_version_string[];
+
+void pthread__unblock_sigwinch(void);
+
+#include "util/target.h"
+
+struct record_opts {
+	struct target target;
+	bool	     group;
+	bool	     inherit_stat;
+	bool	     no_buffering;
+	bool	     no_inherit;
+	bool	     no_inherit_set;
+	bool	     no_samples;
+	bool	     raw_samples;
+	bool	     sample_address;
+	bool	     sample_weight;
+	bool	     sample_time;
+	bool	     sample_time_set;
+	bool	     callgraph_set;
+	bool	     period;
+	bool	     running_time;
+	bool	     full_auxtrace;
+	bool	     auxtrace_snapshot_mode;
+	bool	     record_switch_events;
+	unsigned int freq;
+	unsigned int mmap_pages;
+	unsigned int auxtrace_mmap_pages;
+	unsigned int user_freq;
+	u64          branch_stack;
+	u64	     sample_intr_regs;
+	u64	     default_interval;
+	u64	     user_interval;
+	size_t	     auxtrace_snapshot_size;
+	const char   *auxtrace_snapshot_opts;
+	bool	     sample_transaction;
+	unsigned     initial_delay;
+	bool         use_clockid;
+	clockid_t    clockid;
+	unsigned int proc_map_timeout;
+};
+
+struct option;
+extern const char * const *record_usage;
+extern struct option *record_options;
+#endif