diff options
Diffstat (limited to 'tools/perf/util/util.h')
| -rw-r--r-- | tools/perf/util/util.h | 325 |
1 files changed, 83 insertions, 242 deletions
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index 2732fad03908..3423778e39a5 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -1,279 +1,120 @@ -#ifndef GIT_COMPAT_UTIL_H -#define GIT_COMPAT_UTIL_H +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_UTIL_H +#define __PERF_UTIL_H -#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 +/* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */ +#define _DEFAULT_SOURCE 1 -#include <unistd.h> -#include <stdio.h> -#include <sys/stat.h> -#include <sys/statfs.h> +#include <dirent.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 <linux/compiler.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 <inttypes.h> -#include <linux/magic.h> -#include "types.h" -#include <sys/ttydefaults.h> -#include <lk/debugfs.h> -#include <termios.h> - -extern const char *graph_line; -extern const char *graph_dotted_line; -extern char buildid_dir[]; -extern char tracing_events_path[]; -extern void perf_debugfs_set_path(const char *mountpoint); -const char *perf_debugfs_mount(const char *mountpoint); - -/* 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 +#ifndef __cplusplus +#include <internal/cpumap.h> #endif -#ifndef PRIuMAX -#define PRIuMAX "llu" -#endif +extern const char perf_usage_string[]; +extern const char perf_more_info_string[]; -#ifndef PRIu32 -#define PRIu32 "u" -#endif - -#ifndef PRIx32 -#define PRIx32 "x" -#endif - -#ifndef PATH_SEP -#define PATH_SEP ':' -#endif +extern const char *input_name; -#ifndef STRIP_EXTENSION -#define STRIP_EXTENSION "" -#endif +/* This will control if perf_{host,guest} will set attr.exclude_{host,guest}. */ +extern bool exclude_GH_default; -#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 +extern bool perf_host; +extern bool perf_guest; /* 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))); +void usage(const char *err) __noreturn; +void die(const char *err, ...) __noreturn __printf(1, 2); -#include "../../../include/linux/stringify.h" +struct dirent; +struct strlist; -#define DIE_IF(cnd) \ - do { if (cnd) \ - die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \ - __stringify(cnd) "\n"); \ - } while (0) +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); -extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN); +int sysctl__max_stack(void); -extern int prefixcmp(const char *str, const char *prefix); -extern void set_buildid_dir(void); -extern void disable_buildid_cache(void); +bool sysctl__nmi_watchdog_enabled(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; -} +int perf_tip(char **strp, const char *dirpath); -#ifdef __GLIBC_PREREQ -#if __GLIBC_PREREQ(2, 1) -#define HAVE_STRCHRNUL -#endif +#ifndef HAVE_SCHED_GETCPU_SUPPORT +int sched_getcpu(void); #endif -#ifndef HAVE_STRCHRNUL -#define strchrnul gitstrchrnul -static inline char *gitstrchrnul(const char *s, int c) -{ - while (*s && *s != c) - s++; - return (char *)s; -} +#ifndef HAVE_SCANDIRAT_SUPPORT +int scandirat(int dirfd, const char *dirp, + struct dirent ***namelist, + int (*filter)(const struct dirent *), + int (*compar)(const struct dirent **, const struct dirent **)); #endif -/* - * Wrappers: - */ -extern char *xstrdup(const char *str); -extern void *xrealloc(void *ptr, size_t size) __attribute__((weak)); +extern bool perf_singlethreaded; +void perf_set_singlethreaded(void); +void perf_set_multithreaded(void); -static inline void *zalloc(size_t size) -{ - return calloc(1, size); -} +char *perf_exe(char *buf, int len); -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 - -#ifndef NSEC_PER_MSEC -#define NSEC_PER_MSEC 1000000L +#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 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) && (x & 0x20)) -#define isupper(x) (sane_istest(x,GIT_ALPHA) && !(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); -char *strxfrchar(char *s, char from, char to); -unsigned long convert_unit(unsigned long value, char *unit); -int readn(int fd, void *buf, size_t size); - -struct perf_event_attr; +struct perf_debuginfod { + const char *urls; + bool set; +}; +void perf_debuginfod_setup(struct perf_debuginfod *di); -void event_attr_init(struct perf_event_attr *attr); +char *filename_with_chroot(int pid, const char *filename); -#define _STR(x) #x -#define STR(x) _STR(x) +int do_realloc_array_as_needed(void **arr, size_t *arr_sz, size_t x, + size_t msz, const void *init_val); -/* - * Determine whether some value is a power of two, where zero is - * *not* considered a power of two. - */ +#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 __attribute__((const)) -bool is_power_of_2(unsigned long n) +static inline bool host_is_bigendian(void) { - return (n != 0 && ((n & (n - 1)) == 0)); -} - -size_t hex_width(u64 v); -int hex2u64(const char *ptr, u64 *val); - -char *ltrim(char *s); -char *rtrim(char *s); - -void dump_stack(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; -extern unsigned int page_size; + ptr = (unsigned int *)(void *)str; + return *ptr == 0x01020304; +#endif +} -void get_term_dimensions(struct winsize *ws); -#endif /* GIT_COMPAT_UTIL_H */ +#endif /* __PERF_UTIL_H */ |