[mirror_ubuntu-focal-kernel.git] / tools / perf / util / util.h

/* 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 <fcntl.h>
#include <stdbool.h>
#include <stddef.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);

struct dirent;
struct nsinfo;
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);
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);
int copyfile_offset(int ifd, loff_t off_in, int ofd, loff_t off_out, u64 size);

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);

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_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

#endif /* GIT_COMPAT_UTIL_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
07800601 IM	2	#ifndef GIT_COMPAT_UTIL_H
	3	#define GIT_COMPAT_UTIL_H
	4
07800601	5	#define _BSD_SOURCE 1
512fe365 CP	6	/* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
512fe365 CP	7	#define _DEFAULT_SOURCE 1
07800601	8
ed93d0a2	9	#include <fcntl.h>
e206d556	10	#include <stdbool.h>
07800601	11	#include <stddef.h>
6c346643	12	#include <linux/compiler.h>
ad0902e0	13	#include <sys/types.h>
1fe2c106	14
07800601	15	/* General helper functions */
6c346643	16	void usage(const char *err) __noreturn;
afaed6d3	17	void die(const char *err, ...) __noreturn __printf(1, 2);
07800601	18
76b31a29	19	struct dirent;
ad0902e0	20	struct nsinfo;
8ec20b17 ACM	21	struct strlist;
8ec20b17 ACM	22
4cf40131	23	int mkdir_p(char *path, mode_t mode);
9a9c733d	24	int rm_rf(const char *path);
c69e4c37	25	int rm_rf_perf_data(const char *path);
e1ce726e MH	26	struct strlist lsdir(const char name, bool (filter)(const char , struct dirent *));
e1ce726e MH	27	bool lsdir_no_dot_filter(const char name, struct dirent d);
4cf40131	28	int copyfile(const char from, const char to);
9a17d726	29	int copyfile_mode(const char from, const char to, mode_t mode);
f045b8c4	30	int copyfile_ns(const char from, const char to, struct nsinfo *nsi);
ed93d0a2	31	int copyfile_offset(int ifd, loff_t off_in, int ofd, loff_t off_out, u64 size);
4cf40131	32
727ebd54	33	ssize_t readn(int fd, void *buf, size_t n);
7c724405	34	ssize_t writen(int fd, const void *buf, size_t n);
e206d556	35
61e04b33 ACM	36	size_t hex_width(u64 v);
61e04b33 ACM	37
0c1fe6b2	38	extern unsigned int page_size;
9ac94e31	39	int __pure cacheline_size(void);
0c1fe6b2	40
029c75e5 ACM	41	int sysctl__max_stack(void);
029c75e5 ACM	42
07bc5c69 WN	43	int fetch_kernel_version(unsigned int *puint,
07bc5c69 WN	44	char *str, size_t str_sz);
d3e0ce39 WN	45	#define KVER_VERSION(x) (((x) >> 16) & 0xff)
	46	#define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
	47	#define KVER_SUBLEVEL(x) ((x) & 0xff)
	48	#define KVER_FMT "%d.%d.%d"
	49	#define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
07bc5c69	50
14cbfbeb NK	51	const char perf_tip(const char dirpath);
14cbfbeb NK	52
120010cb ACM	53	#ifndef HAVE_SCHED_GETCPU_SUPPORT
120010cb ACM	54	int sched_getcpu(void);
c7007e98 ACM	55	#endif
c7007e98 ACM	56
0a7c74ea ACM	57	extern bool perf_singlethreaded;
	58
	59	void perf_set_singlethreaded(void);
	60	void perf_set_multithreaded(void);
	61
94816add AK	62	char perf_exe(char buf, int len);
94816add AK	63
5c61d70e ACM	64	#ifndef O_CLOEXEC
	65	#ifdef __sparc__
	66	#define O_CLOEXEC 0x400000
	67	#elif defined(__alpha__) \|\| defined(__hppa__)
	68	#define O_CLOEXEC 010000000
	69	#else
	70	#define O_CLOEXEC 02000000
	71	#endif
	72	#endif
	73
1355915a	74	#endif /* GIT_COMPAT_UTIL_H */