1 files changed, 124 insertions, 0 deletions
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
new file mode 100644
index 0000000000..7c8915d92d
--- /dev/null
+++ b/tools/perf/util/util.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_UTIL_H
+#define __PERF_UTIL_H
+
+#define _BSD_SOURCE 1
+/* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
+#define _DEFAULT_SOURCE 1
+
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <linux/compiler.h>
+#include <sys/types.h>
+#ifndef __cplusplus
+#include <internal/cpumap.h>
+#endif
+
+extern const char perf_usage_string[];
+extern const char perf_more_info_string[];
+
+extern const char *input_name;
+
+extern bool perf_host;
+extern bool perf_guest;
+
+/* General helper functions */
+void usage(const char *err) __noreturn;
+void die(const char *err, ...) __noreturn __printf(1, 2);
+
+struct dirent;
+struct strlist;
+
+int mkdir_p(char *path, mode_t mode);
+int rm_rf(const char *path);
+int rm_rf_perf_data(const char *path);
+struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
+bool lsdir_no_dot_filter(const char *name, struct dirent *d);
+
+size_t hex_width(u64 v);
+
+int sysctl__max_stack(void);
+
+bool sysctl__nmi_watchdog_enabled(void);
+
+int fetch_kernel_version(unsigned int *puint,
+			 char *str, size_t str_sz);
+#define KVER_VERSION(x)		(((x) >> 16) & 0xff)
+#define KVER_PATCHLEVEL(x)	(((x) >> 8) & 0xff)
+#define KVER_SUBLEVEL(x)	((x) & 0xff)
+#define KVER_FMT	"%d.%d.%d"
+#define KVER_PARAM(x)	KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
+
+int perf_tip(char **strp, const char *dirpath);
+
+#ifndef HAVE_SCHED_GETCPU_SUPPORT
+int sched_getcpu(void);
+#endif
+
+extern bool perf_singlethreaded;
+
+void perf_set_singlethreaded(void);
+void perf_set_multithreaded(void);
+
+char *perf_exe(char *buf, int len);
+
+#ifndef O_CLOEXEC
+#ifdef __sparc__
+#define O_CLOEXEC      0x400000
+#elif defined(__alpha__) || defined(__hppa__)
+#define O_CLOEXEC      010000000
+#else
+#define O_CLOEXEC      02000000
+#endif
+#endif
+
+extern bool test_attr__enabled;
+void test_attr__ready(void);
+void test_attr__init(void);
+struct perf_event_attr;
+void test_attr__open(struct perf_event_attr *attr, pid_t pid, struct perf_cpu cpu,
+		     int fd, int group_fd, unsigned long flags);
+
+struct perf_debuginfod {
+	const char	*urls;
+	bool		 set;
+};
+void perf_debuginfod_setup(struct perf_debuginfod *di);
+
+char *filename_with_chroot(int pid, const char *filename);
+
+int do_realloc_array_as_needed(void **arr, size_t *arr_sz, size_t x,
+			       size_t msz, const void *init_val);
+
+#define realloc_array_as_needed(a, n, x, v) ({			\
+	typeof(x) __x = (x);					\
+	__x >= (n) ?						\
+		do_realloc_array_as_needed((void **)&(a),	\
+					   &(n),		\
+					   __x,			\
+					   sizeof(*(a)),	\
+					   (const void *)(v)) :	\
+		0;						\
+	})
+
+static inline bool host_is_bigendian(void)
+{
+#ifdef __BYTE_ORDER__
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	return false;
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	return true;
+#else
+#error "Unrecognized __BYTE_ORDER__"
+#endif
+#else /* !__BYTE_ORDER__ */
+	unsigned char str[] = { 0x1, 0x2, 0x3, 0x4, 0x0, 0x0, 0x0, 0x0};
+	unsigned int *ptr;
+
+	ptr = (unsigned int *)(void *)str;
+	return *ptr == 0x01020304;
+#endif
+}
+
+#endif /* __PERF_UTIL_H */