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| Original file line number | Diff line number | Diff line change |
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| /* SPDX-License-Identifier: LGPL-2.1 */ | ||
| /* | ||
| * Copyright (C) 2019, VMware, Tzvetomir Stoyanov <tz.stoyanov@gmail.com> | ||
| * | ||
| */ | ||
| #ifndef _TRACE_FS_LOCAL_H | ||
| #define _TRACE_FS_LOCAL_H | ||
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| #include <pthread.h> | ||
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| #define __hidden __attribute__((visibility ("hidden"))) | ||
| #define __weak __attribute__((weak)) | ||
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| #define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0])) | ||
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| /* Will cause a division by zero warning if cond is true */ | ||
| #define BUILD_BUG_ON(cond) \ | ||
| do { if (!(1/!(cond))) { } } while (0) | ||
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| #define HASH_BITS 10 | ||
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| struct tracefs_options_mask { | ||
| unsigned long long mask; | ||
| }; | ||
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| struct tracefs_instance { | ||
| struct tracefs_options_mask supported_opts; | ||
| struct tracefs_options_mask enabled_opts; | ||
| char *trace_dir; | ||
| char *name; | ||
| pthread_mutex_t lock; | ||
| int ref; | ||
| int flags; | ||
| int ftrace_filter_fd; | ||
| int ftrace_notrace_fd; | ||
| int ftrace_marker_fd; | ||
| int ftrace_marker_raw_fd; | ||
| bool pipe_keep_going; | ||
| bool iterate_keep_going; | ||
| }; | ||
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| extern pthread_mutex_t toplevel_lock; | ||
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| static inline pthread_mutex_t *trace_get_lock(struct tracefs_instance *instance) | ||
| { | ||
| return instance ? &instance->lock : &toplevel_lock; | ||
| } | ||
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| void trace_put_instance(struct tracefs_instance *instance); | ||
| int trace_get_instance(struct tracefs_instance *instance); | ||
|
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| /* Can be overridden */ | ||
| void tracefs_warning(const char *fmt, ...); | ||
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| int str_read_file(const char *file, char **buffer, bool warn); | ||
| char *trace_append_file(const char *dir, const char *name); | ||
| char *trace_find_tracing_dir(bool debugfs); | ||
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| #ifndef ACCESSPERMS | ||
| #define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */ | ||
| #endif | ||
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| #ifndef ALLPERMS | ||
| #define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO) /* 07777 */ | ||
| #endif | ||
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| #ifndef DEFFILEMODE | ||
| #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) /* 0666*/ | ||
| #endif | ||
|
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| struct tracefs_options_mask * | ||
| supported_opts_mask(struct tracefs_instance *instance); | ||
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| struct tracefs_options_mask * | ||
| enabled_opts_mask(struct tracefs_instance *instance); | ||
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| char **trace_list_create_empty(void); | ||
| int trace_list_pop(char **list); | ||
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| char *append_string(char *str, const char *delim, const char *add); | ||
| int trace_test_state(int state); | ||
| bool trace_verify_event_field(struct tep_event *event, | ||
| const char *field_name, | ||
| const struct tep_format_field **ptr_field); | ||
| int trace_append_filter(char **filter, unsigned int *state, | ||
| unsigned int *open_parens, | ||
| struct tep_event *event, | ||
| enum tracefs_filter type, | ||
| const char *field_name, | ||
| enum tracefs_compare compare, | ||
| const char *val); | ||
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| struct tracefs_synth *synth_init_from(struct tep_handle *tep, | ||
| const char *start_system, | ||
| const char *start_event); | ||
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| #define HIST_COUNTER_TYPE (TRACEFS_HIST_KEY_MAX + 100) | ||
| int synth_add_start_field(struct tracefs_synth *synth, | ||
| const char *start_field, | ||
| const char *name, | ||
| enum tracefs_hist_key_type type); | ||
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| /* Internal interface for ftrace dynamic events */ | ||
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| struct tracefs_dynevent { | ||
| char *trace_file; | ||
| char *prefix; | ||
| char *system; | ||
| char *event; | ||
| char *address; | ||
| char *format; | ||
| enum tracefs_dynevent_type type; | ||
| }; | ||
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| struct tracefs_dynevent * | ||
| dynevent_alloc(enum tracefs_dynevent_type type, const char *system, | ||
| const char *event, const char *address, const char *format); | ||
| int dynevent_get_count(unsigned int types, const char *system); | ||
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| int trace_load_events(struct tep_handle *tep, | ||
| const char *tracing_dir, const char *system); | ||
| int trace_rescan_events(struct tep_handle *tep, | ||
| const char *tracing_dir, const char *system); | ||
| struct tep_event *get_tep_event(struct tep_handle *tep, | ||
| const char *system, const char *name); | ||
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| unsigned int quick_hash(const char *str); | ||
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| #endif /* _TRACE_FS_LOCAL_H */ |
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