1 files changed, 87 insertions, 0 deletions
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
new file mode 100644
index 000000000..2efec9e77
--- /dev/null
+++ b/tools/perf/util/util.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef GIT_COMPAT_UTIL_H
+#define GIT_COMPAT_UTIL_H
+
+#define _BSD_SOURCE 1
+/* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
+#define _DEFAULT_SOURCE 1
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <linux/compiler.h>
+#include <sys/types.h>
+
+/* General helper functions */
+void usage(const char *err) __noreturn;
+void die(const char *err, ...) __noreturn __printf(1, 2);
+
+static inline void *zalloc(size_t size)
+{
+	return calloc(1, size);
+}
+
+#define zfree(ptr) ({ free((void *)*ptr); *ptr = NULL; })
+
+struct dirent;
+struct nsinfo;
+struct strlist;
+
+int mkdir_p(char *path, mode_t mode);
+int rm_rf(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);
+int copyfile(const char *from, const char *to);
+int copyfile_mode(const char *from, const char *to, mode_t mode);
+int copyfile_ns(const char *from, const char *to, struct nsinfo *nsi);
+
+ssize_t readn(int fd, void *buf, size_t n);
+ssize_t writen(int fd, const void *buf, size_t n);
+
+size_t hex_width(u64 v);
+int hex2u64(const char *ptr, u64 *val);
+
+extern unsigned int page_size;
+int __pure cacheline_size(void);
+
+int sysctl__max_stack(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)
+
+const char *perf_tip(const char *dirpath);
+
+#ifndef HAVE_GET_CURRENT_DIR_NAME
+char *get_current_dir_name(void);
+#endif
+
+#ifndef HAVE_SCHED_GETCPU_SUPPORT
+int sched_getcpu(void);
+#endif
+
+#ifndef HAVE_SETNS_SUPPORT
+int setns(int fd, int nstype);
+#endif
+
+extern bool perf_singlethreaded;
+
+void perf_set_singlethreaded(void);
+void perf_set_multithreaded(void);
+
+#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
+
+#endif /* GIT_COMPAT_UTIL_H */