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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[deliverable/linux.git] / tools / perf / util / util.h
... / ...
CommitLineData
1#ifndef GIT_COMPAT_UTIL_H
2#define GIT_COMPAT_UTIL_H
3
4#ifndef FLEX_ARRAY
5/*
6 * See if our compiler is known to support flexible array members.
7 */
8#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
9# define FLEX_ARRAY /* empty */
10#elif defined(__GNUC__)
11# if (__GNUC__ >= 3)
12# define FLEX_ARRAY /* empty */
13# else
14# define FLEX_ARRAY 0 /* older GNU extension */
15# endif
16#endif
17
18/*
19 * Otherwise, default to safer but a bit wasteful traditional style
20 */
21#ifndef FLEX_ARRAY
22# define FLEX_ARRAY 1
23#endif
24#endif
25
26#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
27
28#ifdef __GNUC__
29#define TYPEOF(x) (__typeof__(x))
30#else
31#define TYPEOF(x)
32#endif
33
34#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
35#define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
36
37/* Approximation of the length of the decimal representation of this type. */
38#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
39
40#define _ALL_SOURCE 1
41#define _BSD_SOURCE 1
42/* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
43#define _DEFAULT_SOURCE 1
44#define HAS_BOOL
45
46#include <unistd.h>
47#include <stdio.h>
48#include <sys/stat.h>
49#include <sys/statfs.h>
50#include <fcntl.h>
51#include <stdbool.h>
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>
68#include <sys/wait.h>
69#include <poll.h>
70#include <sys/socket.h>
71#include <sys/ioctl.h>
72#include <inttypes.h>
73#include <linux/kernel.h>
74#include <linux/magic.h>
75#include <linux/types.h>
76#include <sys/ttydefaults.h>
77#include <api/fs/debugfs.h>
78#include <api/fs/tracefs.h>
79#include <termios.h>
80#include <linux/bitops.h>
81#include <termios.h>
82
83extern const char *graph_line;
84extern const char *graph_dotted_line;
85extern char buildid_dir[];
86extern char tracing_events_path[];
87extern void perf_debugfs_set_path(const char *mountpoint);
88const char *perf_debugfs_mount(const char *mountpoint);
89const char *find_tracing_dir(void);
90char *get_tracing_file(const char *name);
91void put_tracing_file(char *file);
92
93/* On most systems <limits.h> would have given us this, but
94 * not on some systems (e.g. GNU/Hurd).
95 */
96#ifndef PATH_MAX
97#define PATH_MAX 4096
98#endif
99
100#ifndef PRIuMAX
101#define PRIuMAX "llu"
102#endif
103
104#ifndef PRIu32
105#define PRIu32 "u"
106#endif
107
108#ifndef PRIx32
109#define PRIx32 "x"
110#endif
111
112#ifndef PATH_SEP
113#define PATH_SEP ':'
114#endif
115
116#ifndef STRIP_EXTENSION
117#define STRIP_EXTENSION ""
118#endif
119
120#ifndef has_dos_drive_prefix
121#define has_dos_drive_prefix(path) 0
122#endif
123
124#ifndef is_dir_sep
125#define is_dir_sep(c) ((c) == '/')
126#endif
127
128#ifdef __GNUC__
129#define NORETURN __attribute__((__noreturn__))
130#else
131#define NORETURN
132#ifndef __attribute__
133#define __attribute__(x)
134#endif
135#endif
136
137#define PERF_GTK_DSO "libperf-gtk.so"
138
139/* General helper functions */
140extern void usage(const char *err) NORETURN;
141extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
142extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
143extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
144
145#include "../../../include/linux/stringify.h"
146
147#define DIE_IF(cnd) \
148 do { if (cnd) \
149 die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \
150 __stringify(cnd) "\n"); \
151 } while (0)
152
153
154extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
155
156extern int prefixcmp(const char *str, const char *prefix);
157extern void set_buildid_dir(const char *dir);
158
159static inline const char *skip_prefix(const char *str, const char *prefix)
160{
161 size_t len = strlen(prefix);
162 return strncmp(str, prefix, len) ? NULL : str + len;
163}
164
165#ifdef __GLIBC_PREREQ
166#if __GLIBC_PREREQ(2, 1)
167#define HAVE_STRCHRNUL
168#endif
169#endif
170
171#ifndef HAVE_STRCHRNUL
172#define strchrnul gitstrchrnul
173static inline char *gitstrchrnul(const char *s, int c)
174{
175 while (*s && *s != c)
176 s++;
177 return (char *)s;
178}
179#endif
180
181/*
182 * Wrappers:
183 */
184extern char *xstrdup(const char *str);
185extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
186
187
188static inline void *zalloc(size_t size)
189{
190 return calloc(1, size);
191}
192
193#define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
194
195static inline int has_extension(const char *filename, const char *ext)
196{
197 size_t len = strlen(filename);
198 size_t extlen = strlen(ext);
199
200 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
201}
202
203/* Sane ctype - no locale, and works with signed chars */
204#undef isascii
205#undef isspace
206#undef isdigit
207#undef isxdigit
208#undef isalpha
209#undef isprint
210#undef isalnum
211#undef islower
212#undef isupper
213#undef tolower
214#undef toupper
215
216#ifndef NSEC_PER_MSEC
217#define NSEC_PER_MSEC 1000000L
218#endif
219
220int parse_nsec_time(const char *str, u64 *ptime);
221
222extern unsigned char sane_ctype[256];
223#define GIT_SPACE 0x01
224#define GIT_DIGIT 0x02
225#define GIT_ALPHA 0x04
226#define GIT_GLOB_SPECIAL 0x08
227#define GIT_REGEX_SPECIAL 0x10
228#define GIT_PRINT_EXTRA 0x20
229#define GIT_PRINT 0x3E
230#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
231#define isascii(x) (((x) & ~0x7f) == 0)
232#define isspace(x) sane_istest(x,GIT_SPACE)
233#define isdigit(x) sane_istest(x,GIT_DIGIT)
234#define isxdigit(x) \
235 (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G')
236#define isalpha(x) sane_istest(x,GIT_ALPHA)
237#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
238#define isprint(x) sane_istest(x,GIT_PRINT)
239#define islower(x) (sane_istest(x,GIT_ALPHA) && (x & 0x20))
240#define isupper(x) (sane_istest(x,GIT_ALPHA) && !(x & 0x20))
241#define tolower(x) sane_case((unsigned char)(x), 0x20)
242#define toupper(x) sane_case((unsigned char)(x), 0)
243
244static inline int sane_case(int x, int high)
245{
246 if (sane_istest(x, GIT_ALPHA))
247 x = (x & ~0x20) | high;
248 return x;
249}
250
251int mkdir_p(char *path, mode_t mode);
252int rm_rf(char *path);
253int copyfile(const char *from, const char *to);
254int copyfile_mode(const char *from, const char *to, mode_t mode);
255int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
256
257s64 perf_atoll(const char *str);
258char **argv_split(const char *str, int *argcp);
259void argv_free(char **argv);
260bool strglobmatch(const char *str, const char *pat);
261bool strlazymatch(const char *str, const char *pat);
262static inline bool strisglob(const char *str)
263{
264 return strpbrk(str, "*?[") != NULL;
265}
266int strtailcmp(const char *s1, const char *s2);
267char *strxfrchar(char *s, char from, char to);
268unsigned long convert_unit(unsigned long value, char *unit);
269ssize_t readn(int fd, void *buf, size_t n);
270ssize_t writen(int fd, void *buf, size_t n);
271
272struct perf_event_attr;
273
274void event_attr_init(struct perf_event_attr *attr);
275
276#define _STR(x) #x
277#define STR(x) _STR(x)
278
279size_t hex_width(u64 v);
280int hex2u64(const char *ptr, u64 *val);
281
282char *ltrim(char *s);
283char *rtrim(char *s);
284
285void dump_stack(void);
286void sighandler_dump_stack(int sig);
287
288extern unsigned int page_size;
289extern int cacheline_size;
290
291void get_term_dimensions(struct winsize *ws);
292void set_term_quiet_input(struct termios *old);
293
294struct parse_tag {
295 char tag;
296 int mult;
297};
298
299unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
300
301#define SRCLINE_UNKNOWN ((char *) "??:0")
302
303static inline int path__join(char *bf, size_t size,
304 const char *path1, const char *path2)
305{
306 return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2);
307}
308
309static inline int path__join3(char *bf, size_t size,
310 const char *path1, const char *path2,
311 const char *path3)
312{
313 return scnprintf(bf, size, "%s%s%s%s%s",
314 path1, path1[0] ? "/" : "",
315 path2, path2[0] ? "/" : "", path3);
316}
317
318struct dso;
319struct symbol;
320
321char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
322 bool show_sym);
323void free_srcline(char *srcline);
324
325int filename__read_str(const char *filename, char **buf, size_t *sizep);
326int perf_event_paranoid(void);
327
328void mem_bswap_64(void *src, int byte_size);
329void mem_bswap_32(void *src, int byte_size);
330
331const char *get_filename_for_perf_kvm(void);
332bool find_process(const char *name);
333
334#ifdef HAVE_ZLIB_SUPPORT
335int gzip_decompress_to_file(const char *input, int output_fd);
336#endif
337
338#ifdef HAVE_LZMA_SUPPORT
339int lzma_decompress_to_file(const char *input, int output_fd);
340#endif
341
342#endif /* GIT_COMPAT_UTIL_H */
Linux kernel - Deliverables
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