[linux-2.6-block.git] / tools / perf / util / util.h

#ifndef GIT_COMPAT_UTIL_H
#define GIT_COMPAT_UTIL_H

#define _FILE_OFFSET_BITS 64

#ifndef FLEX_ARRAY
/*
 * See if our compiler is known to support flexible array members.
 */
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
# define FLEX_ARRAY /* empty */
#elif defined(__GNUC__)
# if (__GNUC__ >= 3)
#  define FLEX_ARRAY /* empty */
# else
#  define FLEX_ARRAY 0 /* older GNU extension */
# endif
#endif

/*
 * Otherwise, default to safer but a bit wasteful traditional style
 */
#ifndef FLEX_ARRAY
# define FLEX_ARRAY 1
#endif
#endif

#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))

#ifdef __GNUC__
#define TYPEOF(x) (__typeof__(x))
#else
#define TYPEOF(x)
#endif

#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
#define HAS_MULTI_BITS(i)  ((i) & ((i) - 1))  /* checks if an integer has more than 1 bit set */

/* Approximation of the length of the decimal representation of this type. */
#define decimal_length(x)	((int)(sizeof(x) * 2.56 + 0.5) + 1)

#define _ALL_SOURCE 1
#define _BSD_SOURCE 1
#define HAS_BOOL

#include <unistd.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <sys/param.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/time.h>
#include <time.h>
#include <signal.h>
#include <fnmatch.h>
#include <assert.h>
#include <regex.h>
#include <utime.h>
#include <sys/wait.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <inttypes.h>
#include "../../../include/linux/magic.h"
#include "types.h"
#include <sys/ttydefaults.h>

extern const char *graph_line;
extern const char *graph_dotted_line;
extern char buildid_dir[];

/* On most systems <limits.h> would have given us this, but
 * not on some systems (e.g. GNU/Hurd).
 */
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif

#ifndef PRIuMAX
#define PRIuMAX "llu"
#endif

#ifndef PRIu32
#define PRIu32 "u"
#endif

#ifndef PRIx32
#define PRIx32 "x"
#endif

#ifndef PATH_SEP
#define PATH_SEP ':'
#endif

#ifndef STRIP_EXTENSION
#define STRIP_EXTENSION ""
#endif

#ifndef has_dos_drive_prefix
#define has_dos_drive_prefix(path) 0
#endif

#ifndef is_dir_sep
#define is_dir_sep(c) ((c) == '/')
#endif

#ifdef __GNUC__
#define NORETURN __attribute__((__noreturn__))
#else
#define NORETURN
#ifndef __attribute__
#define __attribute__(x)
#endif
#endif

/* General helper functions */
extern void usage(const char *err) NORETURN;
extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));

#include "../../../include/linux/stringify.h"

#define DIE_IF(cnd)	\
	do { if (cnd)	\
		die(" at (" __FILE__ ":" __stringify(__LINE__) "): "	\
		    __stringify(cnd) "\n");				\
	} while (0)


extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);

extern int prefixcmp(const char *str, const char *prefix);
extern void set_buildid_dir(void);
extern void disable_buildid_cache(void);

static inline const char *skip_prefix(const char *str, const char *prefix)
{
	size_t len = strlen(prefix);
	return strncmp(str, prefix, len) ? NULL : str + len;
}

#ifdef __GLIBC_PREREQ
#if __GLIBC_PREREQ(2, 1)
#define HAVE_STRCHRNUL
#endif
#endif

#ifndef HAVE_STRCHRNUL
#define strchrnul gitstrchrnul
static inline char *gitstrchrnul(const char *s, int c)
{
	while (*s && *s != c)
		s++;
	return (char *)s;
}
#endif

/*
 * Wrappers:
 */
extern char *xstrdup(const char *str);
extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));


static inline void *zalloc(size_t size)
{
	return calloc(1, size);
}

static inline int has_extension(const char *filename, const char *ext)
{
	size_t len = strlen(filename);
	size_t extlen = strlen(ext);

	return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
}

/* Sane ctype - no locale, and works with signed chars */
#undef isascii
#undef isspace
#undef isdigit
#undef isxdigit
#undef isalpha
#undef isprint
#undef isalnum
#undef islower
#undef isupper
#undef tolower
#undef toupper

extern unsigned char sane_ctype[256];
#define GIT_SPACE		0x01
#define GIT_DIGIT		0x02
#define GIT_ALPHA		0x04
#define GIT_GLOB_SPECIAL	0x08
#define GIT_REGEX_SPECIAL	0x10
#define GIT_PRINT_EXTRA		0x20
#define GIT_PRINT		0x3E
#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
#define isascii(x) (((x) & ~0x7f) == 0)
#define isspace(x) sane_istest(x,GIT_SPACE)
#define isdigit(x) sane_istest(x,GIT_DIGIT)
#define isxdigit(x)	\
	(sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G')
#define isalpha(x) sane_istest(x,GIT_ALPHA)
#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
#define isprint(x) sane_istest(x,GIT_PRINT)
#define islower(x) (sane_istest(x,GIT_ALPHA) && sane_istest(x,0x20))
#define isupper(x) (sane_istest(x,GIT_ALPHA) && !sane_istest(x,0x20))
#define tolower(x) sane_case((unsigned char)(x), 0x20)
#define toupper(x) sane_case((unsigned char)(x), 0)

static inline int sane_case(int x, int high)
{
	if (sane_istest(x, GIT_ALPHA))
		x = (x & ~0x20) | high;
	return x;
}

int mkdir_p(char *path, mode_t mode);
int copyfile(const char *from, const char *to);

s64 perf_atoll(const char *str);
char **argv_split(const char *str, int *argcp);
void argv_free(char **argv);
bool strglobmatch(const char *str, const char *pat);
bool strlazymatch(const char *str, const char *pat);
int strtailcmp(const char *s1, const char *s2);
unsigned long convert_unit(unsigned long value, char *unit);
int readn(int fd, void *buf, size_t size);

struct perf_event_attr;

void event_attr_init(struct perf_event_attr *attr);

#define _STR(x) #x
#define STR(x) _STR(x)

/*
 *  Determine whether some value is a power of two, where zero is
 * *not* considered a power of two.
 */

static inline __attribute__((const))
bool is_power_of_2(unsigned long n)
{
	return (n != 0 && ((n & (n - 1)) == 0));
}

size_t hex_width(u64 v);

char *rtrim(char *s);

#endif
Commit	Line	Data
07800601 IM	1	#ifndef GIT_COMPAT_UTIL_H
	2	#define GIT_COMPAT_UTIL_H
	3
	4	#define _FILE_OFFSET_BITS 64
	5
	6	#ifndef FLEX_ARRAY
	7	/*
	8	* See if our compiler is known to support flexible array members.
	9	*/
	10	#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
	11	# define FLEX_ARRAY /* empty */
	12	#elif defined(__GNUC__)
	13	# if (__GNUC__ >= 3)
	14	# define FLEX_ARRAY /* empty */
	15	# else
	16	# define FLEX_ARRAY 0 /* older GNU extension */
	17	# endif
	18	#endif
	19
	20	/*
	21	* Otherwise, default to safer but a bit wasteful traditional style
	22	*/
	23	#ifndef FLEX_ARRAY
	24	# define FLEX_ARRAY 1
	25	#endif
	26	#endif
	27
	28	#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
	29
	30	#ifdef __GNUC__
	31	#define TYPEOF(x) (__typeof__(x))
	32	#else
	33	#define TYPEOF(x)
	34	#endif
	35
	36	#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
	37	#define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
	38
	39	/* Approximation of the length of the decimal representation of this type. */
	40	#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
	41
07800601	42	#define _ALL_SOURCE 1
07800601	43	#define _BSD_SOURCE 1
e206d556	44	#define HAS_BOOL
07800601 IM	45
	46	#include <unistd.h>
	47	#include <stdio.h>
	48	#include <sys/stat.h>
f6bdafef	49	#include <sys/statfs.h>
07800601	50	#include <fcntl.h>
e206d556	51	#include <stdbool.h>
07800601 IM	52	#include <stddef.h>
	53	#include <stdlib.h>
	54	#include <stdarg.h>
	55	#include <string.h>
	56	#include <errno.h>
	57	#include <limits.h>
	58	#include <sys/param.h>
	59	#include <sys/types.h>
	60	#include <dirent.h>
	61	#include <sys/time.h>
	62	#include <time.h>
	63	#include <signal.h>
	64	#include <fnmatch.h>
	65	#include <assert.h>
	66	#include <regex.h>
	67	#include <utime.h>
07800601 IM	68	#include <sys/wait.h>
	69	#include <sys/poll.h>
	70	#include <sys/socket.h>
	71	#include <sys/ioctl.h>
07800601	72	#include <sys/select.h>
07800601 IM	73	#include <netinet/in.h>
	74	#include <netinet/tcp.h>
	75	#include <arpa/inet.h>
	76	#include <netdb.h>
07800601	77	#include <inttypes.h>
f6bdafef	78	#include "../../../include/linux/magic.h"
e206d556	79	#include "types.h"
46e3e055	80	#include <sys/ttydefaults.h>
1fe2c106	81
2890284b ACM	82	extern const char *graph_line;
2890284b ACM	83	extern const char *graph_dotted_line;
45de34bb	84	extern char buildid_dir[];
2890284b	85
07800601 IM	86	/* On most systems <limits.h> would have given us this, but
	87	* not on some systems (e.g. GNU/Hurd).
	88	*/
	89	#ifndef PATH_MAX
	90	#define PATH_MAX 4096
	91	#endif
	92
	93	#ifndef PRIuMAX
	94	#define PRIuMAX "llu"
	95	#endif
	96
	97	#ifndef PRIu32
	98	#define PRIu32 "u"
	99	#endif
	100
	101	#ifndef PRIx32
	102	#define PRIx32 "x"
	103	#endif
	104
	105	#ifndef PATH_SEP
	106	#define PATH_SEP ':'
	107	#endif
	108
	109	#ifndef STRIP_EXTENSION
	110	#define STRIP_EXTENSION ""
	111	#endif
	112
	113	#ifndef has_dos_drive_prefix
	114	#define has_dos_drive_prefix(path) 0
	115	#endif
	116
	117	#ifndef is_dir_sep
	118	#define is_dir_sep(c) ((c) == '/')
	119	#endif
	120
	121	#ifdef __GNUC__
	122	#define NORETURN __attribute__((__noreturn__))
	123	#else
	124	#define NORETURN
	125	#ifndef __attribute__
	126	#define __attribute__(x)
	127	#endif
	128	#endif
	129
	130	/* General helper functions */
	131	extern void usage(const char *err) NORETURN;
	132	extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
	133	extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
	134	extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
	135
9769833b MH	136	#include "../../../include/linux/stringify.h"
	137
	138	#define DIE_IF(cnd) \
	139	do { if (cnd) \
	140	die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \
	141	__stringify(cnd) "\n"); \
	142	} while (0)
	143
	144
07800601 IM	145	extern void set_die_routine(void (routine)(const char err, va_list params) NORETURN);
	146
	147	extern int prefixcmp(const char str, const char prefix);
45de34bb	148	extern void set_buildid_dir(void);
a1ac1d3c	149	extern void disable_buildid_cache(void);
07800601 IM	150
	151	static inline const char skip_prefix(const char str, const char *prefix)
	152	{
	153	size_t len = strlen(prefix);
	154	return strncmp(str, prefix, len) ? NULL : str + len;
	155	}
	156
07800601 IM	157	#ifdef __GLIBC_PREREQ
	158	#if __GLIBC_PREREQ(2, 1)
	159	#define HAVE_STRCHRNUL
	160	#endif
	161	#endif
	162
	163	#ifndef HAVE_STRCHRNUL
	164	#define strchrnul gitstrchrnul
	165	static inline char gitstrchrnul(const char s, int c)
	166	{
	167	while (s && s != c)
	168	s++;
	169	return (char *)s;
	170	}
	171	#endif
	172
6f06ccbc IM	173	/*
	174	* Wrappers:
	175	*/
	176	extern char xstrdup(const char str);
727dad10	177	extern void xrealloc(void ptr, size_t size) __attribute__((weak));
16f762a2	178
a1d37d52	179
36479484 ACM	180	static inline void *zalloc(size_t size)
	181	{
	182	return calloc(1, size);
	183	}
	184
07800601 IM	185	static inline int has_extension(const char filename, const char ext)
	186	{
	187	size_t len = strlen(filename);
	188	size_t extlen = strlen(ext);
a1d37d52	189
07800601 IM	190	return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
	191	}
	192
	193	/* Sane ctype - no locale, and works with signed chars */
	194	#undef isascii
	195	#undef isspace
	196	#undef isdigit
9e827dd0	197	#undef isxdigit
07800601	198	#undef isalpha
5f9c39dc	199	#undef isprint
07800601	200	#undef isalnum
2cd13b0f NK	201	#undef islower
2cd13b0f NK	202	#undef isupper
07800601 IM	203	#undef tolower
07800601 IM	204	#undef toupper
a1d37d52	205
07800601	206	extern unsigned char sane_ctype[256];
a73c7d84 PZ	207	#define GIT_SPACE 0x01
	208	#define GIT_DIGIT 0x02
	209	#define GIT_ALPHA 0x04
	210	#define GIT_GLOB_SPECIAL 0x08
	211	#define GIT_REGEX_SPECIAL 0x10
	212	#define GIT_PRINT_EXTRA 0x20
	213	#define GIT_PRINT 0x3E
07800601 IM	214	#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
	215	#define isascii(x) (((x) & ~0x7f) == 0)
	216	#define isspace(x) sane_istest(x,GIT_SPACE)
	217	#define isdigit(x) sane_istest(x,GIT_DIGIT)
9e827dd0 FW	218	#define isxdigit(x) \
9e827dd0 FW	219	(sane_istest(toupper(x), GIT_ALPHA \| GIT_DIGIT) && toupper(x) < 'G')
07800601 IM	220	#define isalpha(x) sane_istest(x,GIT_ALPHA)
07800601 IM	221	#define isalnum(x) sane_istest(x,GIT_ALPHA \| GIT_DIGIT)
a73c7d84	222	#define isprint(x) sane_istest(x,GIT_PRINT)
2cd13b0f NK	223	#define islower(x) (sane_istest(x,GIT_ALPHA) && sane_istest(x,0x20))
2cd13b0f NK	224	#define isupper(x) (sane_istest(x,GIT_ALPHA) && !sane_istest(x,0x20))
07800601 IM	225	#define tolower(x) sane_case((unsigned char)(x), 0x20)
	226	#define toupper(x) sane_case((unsigned char)(x), 0)
	227
	228	static inline int sane_case(int x, int high)
	229	{
	230	if (sane_istest(x, GIT_ALPHA))
	231	x = (x & ~0x20) \| high;
	232	return x;
	233	}
	234
4cf40131 ACM	235	int mkdir_p(char *path, mode_t mode);
	236	int copyfile(const char from, const char to);
	237
e206d556 ACM	238	s64 perf_atoll(const char *str);
	239	char *argv_split(const char str, int *argcp);
	240	void argv_free(char **argv);
	241	bool strglobmatch(const char str, const char pat);
	242	bool strlazymatch(const char str, const char pat);
bad03ae4	243	int strtailcmp(const char s1, const char s2);
c82ee828	244	unsigned long convert_unit(unsigned long value, char *unit);
1e7972cc	245	int readn(int fd, void *buf, size_t size);
e206d556	246
1aed2671 JR	247	struct perf_event_attr;
	248
	249	void event_attr_init(struct perf_event_attr *attr);
	250
e206d556 ACM	251	#define _STR(x) #x
	252	#define STR(x) _STR(x)
	253
41d0d933 NE	254	/*
	255	* Determine whether some value is a power of two, where zero is
	256	* not considered a power of two.
	257	*/
	258
	259	static inline __attribute__((const))
	260	bool is_power_of_2(unsigned long n)
	261	{
	262	return (n != 0 && ((n & (n - 1)) == 0));
	263	}
	264
61e04b33 ACM	265	size_t hex_width(u64 v);
61e04b33 ACM	266
cb1a28a0 ACM	267	char rtrim(char s);
cb1a28a0 ACM	268
07800601	269	#endif