/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2008, 2009, 2010 Red Hat Inc, Steven Rostedt * */ #ifndef _TRACE_CMD_PRIVATE_H #define _TRACE_CMD_PRIVATE_H #include /* for iovec */ #include #include "event-parse.h" #include "trace-cmd/trace-cmd.h" #define __packed __attribute__((packed)) #define __hidden __attribute__((visibility ("hidden"))) #define TRACECMD_MAGIC { 23, 8, 68 } #define ARRAY_SIZE(_a) (sizeof(_a) / sizeof((_a)[0])) #define __weak __attribute__((weak)) #define __noreturn __attribute__((noreturn)) #define TRACECMD_ERR_MSK ((unsigned long)(-1) & ~((1UL << 14) - 1)) #define TRACECMD_ISERR(ptr) ((unsigned long)(ptr) > TRACECMD_ERR_MSK) #define TRACECMD_ERROR(ret) ((void *)((unsigned long)(ret) | TRACECMD_ERR_MSK)) #define TRACECMD_PTR2ERR(ptr) ((unisgned long)(ptr) & ~TRACECMD_ERR_MSK) #define TSCNSEC_CLOCK "tsc2nsec" struct tep_plugin_list *trace_load_plugins(struct tep_handle *tep, int flags); int *tracecmd_add_id(int *list, int id, int len); #define FILE_VERSION_MIN 6 #define FILE_VERSION_MAX 7 #define FILE_VERSION_SECTIONS 7 #define FILE_VERSION_COMPRESSION 7 enum { RINGBUF_TYPE_PADDING = 29, RINGBUF_TYPE_TIME_EXTEND = 30, RINGBUF_TYPE_TIME_STAMP = 31, }; /* Can be overridden */ void tracecmd_debug(const char *fmt, ...); void tracecmd_record_ref(struct tep_record *record); void tracecmd_set_debug(bool set_debug); bool tracecmd_get_debug(void); bool tracecmd_is_version_supported(unsigned int version); int tracecmd_default_file_version(void); struct tracecmd_output; struct tracecmd_recorder; struct hook_list; /* --- tracecmd plugins --- */ enum tracecmd_context { TRACECMD_INPUT, TRACECMD_OUTPUT, }; enum tracecmd_plugin_flag { TRACECMD_DISABLE_SYS_PLUGINS = 1, TRACECMD_DISABLE_PLUGINS = 1 << 1, }; struct trace_plugin_context; struct trace_plugin_context * tracecmd_plugin_context_create(enum tracecmd_context context, void *data); void tracecmd_plugin_set_flag(struct trace_plugin_context *context, enum tracecmd_plugin_flag flag); #define TRACECMD_PLUGIN_LOADER tracecmd_plugin_loader #define TRACECMD_PLUGIN_UNLOADER tracecmd_plugin_unloader #define TRACECMD_PLUGIN_ALIAS tracecmd_plugin_alias #define _MAKE_STR(x) #x #define MAKE_STR(x) _MAKE_STR(x) #define TRACECMD_PLUGIN_LOADER_NAME MAKE_STR(TRACECMD_PLUGIN_LOADER) #define TRACECMD_PLUGIN_UNLOADER_NAME MAKE_STR(TRACECMD_PLUGIN_UNLOADER) #define TRACECMD_PLUGIN_ALIAS_NAME MAKE_STR(TRACECMD_PLUGIN_ALIAS) typedef int (*tracecmd_plugin_load_func)(struct trace_plugin_context *trace); typedef int (*tracecmd_plugin_unload_func)(struct trace_plugin_context *trace); struct tracecmd_input * tracecmd_plugin_context_input(struct trace_plugin_context *trace_context); struct tracecmd_output * tracecmd_plugin_context_output(struct trace_plugin_context *trace_context); void tracecmd_set_quiet(struct tracecmd_output *handle, bool set_quiet); bool tracecmd_get_quiet(struct tracecmd_output *handle); void tracecmd_set_out_clock(struct tracecmd_output *handle, const char *clock); const char *tracecmd_get_trace_clock(struct tracecmd_input *handle); const char *tracecmd_get_cpustats(struct tracecmd_input *handle); const char *tracecmd_get_uname(struct tracecmd_input *handle); const char *tracecmd_get_version(struct tracecmd_input *handle); off64_t tracecmd_get_cpu_file_size(struct tracecmd_input *handle, int cpu); static inline int tracecmd_host_bigendian(void) { unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 }; unsigned int *ptr; ptr = (unsigned int *)str; return *ptr == 0x01020304; } /* --- Opening and Reading the trace.dat file --- */ enum tracecmd_file_states { TRACECMD_FILE_ALLOCATED = 0, TRACECMD_FILE_INIT, TRACECMD_FILE_HEADERS, TRACECMD_FILE_FTRACE_EVENTS, TRACECMD_FILE_ALL_EVENTS, TRACECMD_FILE_KALLSYMS, TRACECMD_FILE_PRINTK, TRACECMD_FILE_CMD_LINES, TRACECMD_FILE_CPU_COUNT, TRACECMD_FILE_OPTIONS, TRACECMD_FILE_CPU_LATENCY, TRACECMD_FILE_CPU_FLYRECORD, }; enum { TRACECMD_OPTION_DONE, TRACECMD_OPTION_DATE, TRACECMD_OPTION_CPUSTAT, TRACECMD_OPTION_BUFFER, TRACECMD_OPTION_TRACECLOCK, TRACECMD_OPTION_UNAME, TRACECMD_OPTION_HOOK, TRACECMD_OPTION_OFFSET, TRACECMD_OPTION_CPUCOUNT, TRACECMD_OPTION_VERSION, TRACECMD_OPTION_PROCMAPS, TRACECMD_OPTION_TRACEID, TRACECMD_OPTION_TIME_SHIFT, TRACECMD_OPTION_GUEST, TRACECMD_OPTION_TSC2NSEC, TRACECMD_OPTION_STRINGS, TRACECMD_OPTION_HEADER_INFO, TRACECMD_OPTION_FTRACE_EVENTS, TRACECMD_OPTION_EVENT_FORMATS, TRACECMD_OPTION_KALLSYMS, TRACECMD_OPTION_PRINTK, TRACECMD_OPTION_CMDLINES, TRACECMD_OPTION_BUFFER_TEXT, TRACECMD_OPTION_MAX, }; enum { TRACECMD_FL_IGNORE_DATE = (1 << 0), TRACECMD_FL_BUFFER_INSTANCE = (1 << 1), TRACECMD_FL_IN_USECS = (1 << 2), TRACECMD_FL_RAW_TS = (1 << 3), TRACECMD_FL_SECTIONED = (1 << 4), TRACECMD_FL_COMPRESSION = (1 << 5), }; struct tracecmd_ftrace { struct tracecmd_input *handle; struct tep_event *fgraph_ret_event; int fgraph_ret_id; int long_size; }; struct tracecmd_proc_addr_map { unsigned long long start; unsigned long long end; char *lib_name; }; typedef void (*tracecmd_show_data_func)(struct tracecmd_input *handle, struct tep_record *record); typedef void (*tracecmd_handle_init_func)(struct tracecmd_input *handle, struct hook_list *hook, int global); struct tracecmd_input *tracecmd_alloc(const char *file, int flags); struct tracecmd_input *tracecmd_alloc_fd(int fd, int flags); void tracecmd_ref(struct tracecmd_input *handle); int tracecmd_read_headers(struct tracecmd_input *handle, enum tracecmd_file_states state); int tracecmd_get_parsing_failures(struct tracecmd_input *handle); int tracecmd_long_size(struct tracecmd_input *handle); int tracecmd_page_size(struct tracecmd_input *handle); int tracecmd_cpus(struct tracecmd_input *handle); int tracecmd_copy_headers(struct tracecmd_input *in_handle, struct tracecmd_output *out_handle, enum tracecmd_file_states start_state, enum tracecmd_file_states end_state); int tracecmd_copy_buffer_descr(struct tracecmd_input *in_handle, struct tracecmd_output *out_handle); int tracecmd_copy_options(struct tracecmd_input *in_handle, struct tracecmd_output *out_handle); int tracecmd_copy_trace_data(struct tracecmd_input *in_handle, struct tracecmd_output *out_handle); void tracecmd_set_flag(struct tracecmd_input *handle, int flag); void tracecmd_clear_flag(struct tracecmd_input *handle, int flag); unsigned long tracecmd_get_flags(struct tracecmd_input *handle); enum tracecmd_file_states tracecmd_get_file_state(struct tracecmd_input *handle); int tracecmd_enable_tsync(struct tracecmd_input *handle, bool enable); void tracecmd_parse_trace_clock(struct tracecmd_input *handle, char *file, int size); int tracecmd_make_pipe(struct tracecmd_input *handle, int cpu, int fd, int cpus); int tracecmd_is_buffer_instance(struct tracecmd_input *handle); void tracecmd_set_ts_offset(struct tracecmd_input *handle, long long offset); void tracecmd_set_ts2secs(struct tracecmd_input *handle, unsigned long long hz); void tracecmd_print_events(struct tracecmd_input *handle, const char *regex); struct hook_list *tracecmd_hooks(struct tracecmd_input *handle); void tracecmd_print_stats(struct tracecmd_input *handle); void tracecmd_print_uname(struct tracecmd_input *handle); void tracecmd_print_version(struct tracecmd_input *handle); struct tep_record * tracecmd_peek_data(struct tracecmd_input *handle, int cpu); static inline struct tep_record * tracecmd_peek_data_ref(struct tracecmd_input *handle, int cpu) { struct tep_record *rec = tracecmd_peek_data(handle, cpu); if (rec) rec->ref_count++; return rec; } int tracecmd_latency_data_read(struct tracecmd_input *handle, char **buf, size_t *size); struct tep_record * tracecmd_read_prev(struct tracecmd_input *handle, struct tep_record *record); struct tep_record * tracecmd_read_next_data(struct tracecmd_input *handle, int *rec_cpu); struct tep_record * tracecmd_peek_next_data(struct tracecmd_input *handle, int *rec_cpu); struct tep_record * tracecmd_translate_data(struct tracecmd_input *handle, void *ptr, int size); struct tep_record * tracecmd_read_cpu_last(struct tracecmd_input *handle, int cpu); int tracecmd_refresh_record(struct tracecmd_input *handle, struct tep_record *record); int tracecmd_set_cpu_to_timestamp(struct tracecmd_input *handle, int cpu, unsigned long long ts); void tracecmd_set_all_cpus_to_timestamp(struct tracecmd_input *handle, unsigned long long time); int tracecmd_set_cursor(struct tracecmd_input *handle, int cpu, unsigned long long offset); unsigned long long tracecmd_get_cursor(struct tracecmd_input *handle, int cpu); unsigned long tracecmd_get_in_file_version(struct tracecmd_input *handle); size_t tracecmd_get_options_offset(struct tracecmd_input *handle); int tracecmd_get_file_compress_proto(struct tracecmd_input *handle, const char **name, const char **version); int tracecmd_ftrace_overrides(struct tracecmd_input *handle, struct tracecmd_ftrace *finfo); bool tracecmd_get_use_trace_clock(struct tracecmd_input *handle); tracecmd_show_data_func tracecmd_get_show_data_func(struct tracecmd_input *handle); void tracecmd_set_show_data_func(struct tracecmd_input *handle, tracecmd_show_data_func func); int tracecmd_record_at_buffer_start(struct tracecmd_input *handle, struct tep_record *record); unsigned long long tracecmd_page_ts(struct tracecmd_input *handle, struct tep_record *record); unsigned int tracecmd_record_ts_delta(struct tracecmd_input *handle, struct tep_record *record); struct tracecmd_proc_addr_map * tracecmd_search_task_map(struct tracecmd_input *handle, int pid, unsigned long long addr); #ifndef SWIG /* hack for function graph work around */ extern __thread struct tracecmd_input *tracecmd_curr_thread_handle; #endif /* --- Creating and Writing the trace.dat file --- */ struct tracecmd_event_list { struct tracecmd_event_list *next; const char *glob; }; struct tracecmd_option; struct tracecmd_msg_handle; int tracecmd_output_set_msg(struct tracecmd_output *handle, struct tracecmd_msg_handle *msg_handle); int tracecmd_output_set_trace_dir(struct tracecmd_output *handle, const char *tracing_dir); int tracecmd_output_set_kallsyms(struct tracecmd_output *handle, const char *kallsyms); int tracecmd_output_set_from_input(struct tracecmd_output *handle, struct tracecmd_input *ihandle); int tracecmd_output_set_version(struct tracecmd_output *handle, int file_version); int tracecmd_output_set_compression(struct tracecmd_output *handle, const char *compression); int tracecmd_output_write_headers(struct tracecmd_output *handle, struct tracecmd_event_list *list); struct tracecmd_output *tracecmd_output_create(const char *output_file); struct tracecmd_output *tracecmd_output_create_fd(int fd); struct tracecmd_output *tracecmd_create_file_latency(const char *output_file, int cpus, int file_version, const char *compression); struct tracecmd_option *tracecmd_add_option(struct tracecmd_output *handle, unsigned short id, int size, const void *data); struct tracecmd_option * tracecmd_add_option_v(struct tracecmd_output *handle, unsigned short id, const struct iovec *vector, int count); int tracecmd_add_buffer_info(struct tracecmd_output *handle, const char *name, int cpus); int tracecmd_write_buffer_info(struct tracecmd_output *handle); int tracecmd_write_cpus(struct tracecmd_output *handle, int cpus); int tracecmd_write_cmdlines(struct tracecmd_output *handle); int tracecmd_write_options(struct tracecmd_output *handle); int tracecmd_write_meta_strings(struct tracecmd_output *handle); int tracecmd_append_options(struct tracecmd_output *handle); void tracecmd_output_close(struct tracecmd_output *handle); void tracecmd_output_free(struct tracecmd_output *handle); struct tracecmd_output *tracecmd_copy(struct tracecmd_input *ihandle, const char *file, enum tracecmd_file_states state, int file_version, const char *compression); int tracecmd_write_cpu_data(struct tracecmd_output *handle, int cpus, char * const *cpu_data_files, const char *buff_name); int tracecmd_append_cpu_data(struct tracecmd_output *handle, int cpus, char * const *cpu_data_files); int tracecmd_append_buffer_cpu_data(struct tracecmd_output *handle, const char *name, int cpus, char * const *cpu_data_files); struct tracecmd_output *tracecmd_get_output_handle_fd(int fd); unsigned long tracecmd_get_out_file_version(struct tracecmd_output *handle); unsigned long long tracecmd_get_out_file_offset(struct tracecmd_output *handle); /* --- Reading the Fly Recorder Trace --- */ enum { TRACECMD_RECORD_NOSPLICE = (1 << 0), /* Use read instead of splice */ TRACECMD_RECORD_SNAPSHOT = (1 << 1), /* Extract from snapshot */ TRACECMD_RECORD_BLOCK_SPLICE = (1 << 2), /* Block on splice write */ TRACECMD_RECORD_NOBRASS = (1 << 3), /* Splice directly without a brass pipe */ TRACECMD_RECORD_POLL = (1 << 4), /* Use O_NONBLOCK, poll trace buffers */ }; void tracecmd_free_recorder(struct tracecmd_recorder *recorder); struct tracecmd_recorder *tracecmd_create_recorder(const char *file, int cpu, unsigned flags); struct tracecmd_recorder *tracecmd_create_recorder_fd(int fd, int cpu, unsigned flags); struct tracecmd_recorder *tracecmd_create_recorder_virt(const char *file, int cpu, unsigned flags, int trace_fd); struct tracecmd_recorder *tracecmd_create_recorder_maxkb(const char *file, int cpu, unsigned flags, int maxkb); struct tracecmd_recorder *tracecmd_create_buffer_recorder_fd(int fd, int cpu, unsigned flags, const char *buffer); struct tracecmd_recorder *tracecmd_create_buffer_recorder(const char *file, int cpu, unsigned flags, const char *buffer); struct tracecmd_recorder *tracecmd_create_buffer_recorder_maxkb(const char *file, int cpu, unsigned flags, const char *buffer, int maxkb); int tracecmd_start_recording(struct tracecmd_recorder *recorder, unsigned long sleep); void tracecmd_stop_recording(struct tracecmd_recorder *recorder); long tracecmd_flush_recording(struct tracecmd_recorder *recorder); enum tracecmd_msg_flags { TRACECMD_MSG_FL_USE_TCP = 1 << 0, TRACECMD_MSG_FL_USE_VSOCK = 1 << 1, }; /* for both client and server */ #ifdef __ANDROID__ #define MSG_CACHE_FILE "/data/local/tmp/trace_msg_cacheXXXXXX" #else /* !__ANDROID__ */ #define MSG_CACHE_FILE "/tmp/trace_msg_cacheXXXXXX" #endif /* __ANDROID__ */ struct tracecmd_msg_handle { int fd; short cpu_count; short version; /* Current protocol version */ unsigned long flags; bool done; bool cache; int cfd; char cfile[sizeof(MSG_CACHE_FILE)]; }; struct tracecmd_tsync_protos { char **names; }; struct tracecmd_msg_handle * tracecmd_msg_handle_alloc(int fd, unsigned long flags); int tracecmd_msg_handle_cache(struct tracecmd_msg_handle *msg_handle); /* Closes the socket and frees the handle */ void tracecmd_msg_handle_close(struct tracecmd_msg_handle *msg_handle); /* for clients */ int tracecmd_msg_send_init_data(struct tracecmd_msg_handle *msg_handle, unsigned int **client_ports); int tracecmd_msg_data_send(struct tracecmd_msg_handle *msg_handle, const char *buf, int size); int tracecmd_msg_finish_sending_data(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_send_close_msg(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_send_close_resp_msg(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_wait_close(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_wait_close_resp(struct tracecmd_msg_handle *msg_handle); /* for server */ int tracecmd_msg_initial_setting(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_send_port_array(struct tracecmd_msg_handle *msg_handle, unsigned *ports); int tracecmd_msg_read_data(struct tracecmd_msg_handle *msg_handle, int ofd); int tracecmd_msg_collect_data(struct tracecmd_msg_handle *msg_handle, int ofd); bool tracecmd_msg_done(struct tracecmd_msg_handle *msg_handle); void tracecmd_msg_set_done(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_send_trace_req(struct tracecmd_msg_handle *msg_handle, int argc, char **argv, bool use_fifos, unsigned long long trace_id, struct tracecmd_tsync_protos *protos); int tracecmd_msg_recv_trace_req(struct tracecmd_msg_handle *msg_handle, int *argc, char ***argv, bool *use_fifos, unsigned long long *trace_id, struct tracecmd_tsync_protos **protos); int tracecmd_msg_send_trace_resp(struct tracecmd_msg_handle *msg_handle, int nr_cpus, int page_size, unsigned int *ports, bool use_fifos, unsigned long long trace_id, const char *tsync_proto, unsigned int tsync_port); int tracecmd_msg_recv_trace_resp(struct tracecmd_msg_handle *msg_handle, int *nr_cpus, int *page_size, unsigned int **ports, bool *use_fifos, unsigned long long *trace_id, char **tsync_proto, unsigned int *tsync_port); int tracecmd_msg_send_time_sync(struct tracecmd_msg_handle *msg_handle, char *sync_protocol, unsigned int sync_msg_id, unsigned int payload_size, char *payload); int tracecmd_msg_recv_time_sync(struct tracecmd_msg_handle *msg_handle, char *sync_protocol, unsigned int *sync_msg_id, unsigned int *payload_size, char **payload); enum tracecmd_clocks { TRACECMD_CLOCK_UNKNOWN = 0, TRACECMD_CLOCK_LOCAL = 1, TRACECMD_CLOCK_GLOBAL = 1 << 1, TRACECMD_CLOCK_COUNTER = 1 << 2, TRACECMD_CLOCK_UPTIME = 1 << 3, TRACECMD_CLOCK_PERF = 1 << 4, TRACECMD_CLOCK_MONO = 1 << 5, TRACECMD_CLOCK_MONO_RAW = 1 << 6, TRACECMD_CLOCK_BOOT = 1 << 7, TRACECMD_CLOCK_X86_TSC = 1 << 8 }; enum tracecmd_clocks tracecmd_clock_str2id(const char *clock); const char *tracecmd_clock_id2str(enum tracecmd_clocks clock); /* --- Timestamp synchronization --- */ struct tracecmd_time_sync; #define TRACECMD_TSYNC_PNAME_LENGTH 16 #define TRACECMD_TSYNC_PROTO_NONE "none" enum{ TRACECMD_TIME_SYNC_CMD_PROBE = 1, TRACECMD_TIME_SYNC_CMD_STOP = 2, }; enum tracecmd_time_sync_role { TRACECMD_TIME_SYNC_ROLE_HOST = (1 << 0), TRACECMD_TIME_SYNC_ROLE_GUEST = (1 << 1), TRACECMD_TIME_SYNC_ROLE_CLIENT = (1 << 2), TRACECMD_TIME_SYNC_ROLE_SERVER = (1 << 3), }; /* Timestamp synchronization flags */ #define TRACECMD_TSYNC_FLAG_INTERPOLATE 0x1 void tracecmd_tsync_init(void); int tracecmd_tsync_proto_getall(struct tracecmd_tsync_protos **protos, const char *clock, int role); bool tsync_proto_is_supported(const char *proto_name); struct tracecmd_time_sync * tracecmd_tsync_with_host(int fd, const struct tracecmd_tsync_protos *tsync_protos, const char *clock, int remote_id, int local_id); int tracecmd_tsync_with_host_stop(struct tracecmd_time_sync *tsync); struct tracecmd_time_sync * tracecmd_tsync_with_guest(unsigned long long trace_id, int loop_interval, unsigned int fd, int guest_pid, int guest_cpus, const char *proto_name, const char *clock); int tracecmd_tsync_with_guest_stop(struct tracecmd_time_sync *tsync); int tracecmd_tsync_get_offsets(struct tracecmd_time_sync *tsync, int cpu, int *count, long long **ts, long long **offsets, long long **scalings, long long **frac); int tracecmd_tsync_get_selected_proto(struct tracecmd_time_sync *tsync, char **selected_proto); void tracecmd_tsync_free(struct tracecmd_time_sync *tsync); int tracecmd_write_guest_time_shift(struct tracecmd_output *handle, struct tracecmd_time_sync *tsync); /* --- Compression --- */ struct tracecmd_compress_chunk { unsigned int size; unsigned int zsize; off64_t zoffset; off64_t offset; }; struct tracecmd_compression; struct tracecmd_compression_proto { int weight; const char *name; const char *version; int (*compress)(void *ctx, const void *in, int in_bytes, void *out, int out_bytes); int (*uncompress)(void *ctx, const void *in, int in_bytes, void *out, int out_bytes); unsigned int (*compress_size)(void *ctx, unsigned int bytes); bool (*is_supported)(const char *name, const char *version); void *(*new_context)(void); void (*free_context)(void *ctx); }; struct tracecmd_compression *tracecmd_compress_alloc(const char *name, const char *version, int fd, struct tep_handle *tep, struct tracecmd_msg_handle *msg_handle); void tracecmd_compress_destroy(struct tracecmd_compression *handle); int tracecmd_compress_block(struct tracecmd_compression *handle); int tracecmd_uncompress_block(struct tracecmd_compression *handle); void tracecmd_compress_reset(struct tracecmd_compression *handle); int tracecmd_compress_buffer_read(struct tracecmd_compression *handle, char *dst, int len); int tracecmd_compress_pread(struct tracecmd_compression *handle, char *dst, int len, off_t offset); int tracecmd_compress_buffer_write(struct tracecmd_compression *handle, const void *data, unsigned long long size); off64_t tracecmd_compress_lseek(struct tracecmd_compression *handle, off64_t offset, int whence); int tracecmd_compress_proto_get_name(struct tracecmd_compression *compress, const char **name, const char **version); bool tracecmd_compress_is_supported(const char *name, const char *version); int tracecmd_compress_protos_get(char ***names, char ***versions); int tracecmd_compress_proto_register(struct tracecmd_compression_proto *proto); int tracecmd_compress_copy_from(struct tracecmd_compression *handle, int fd, int chunk_size, unsigned long long *read_size, unsigned long long *write_size); int tracecmd_uncompress_copy_to(struct tracecmd_compression *handle, int fd, unsigned long long *read_size, unsigned long long *write_size); int tracecmd_uncompress_chunk(struct tracecmd_compression *handle, struct tracecmd_compress_chunk *chunk, char *data); int tracecmd_load_chunks_info(struct tracecmd_compression *handle, struct tracecmd_compress_chunk **chunks_info); /* --- Plugin handling --- */ extern struct tep_plugin_option trace_ftrace_options[]; char **trace_util_find_plugin_files(const char *suffix); void trace_util_free_plugin_files(char **files); /* Used for trace-cmd list */ void tracecmd_ftrace_load_options(void); /* event hooks */ struct hook_list { struct hook_list *next; struct buffer_instance *instance; const char *hook; char *str; char *start_system; char *start_event; char *start_match; char *end_system; char *end_event; char *end_match; char *pid; int migrate; int global; int stack; }; struct hook_list *tracecmd_create_event_hook(const char *arg); void tracecmd_free_hooks(struct hook_list *hooks); void tracecmd_plog(const char *fmt, ...); void tracecmd_plog_error(const char *fmt, ...); int tracecmd_set_logfile(char *logfile); /* --- System --- */ unsigned long long tracecmd_generate_traceid(void); int tracecmd_count_cpus(void); /* --- Hack! --- */ int tracecmd_blk_hack(struct tracecmd_input *handle); /* --- Stack tracer functions --- */ int tracecmd_stack_tracer_status(int *status); /* --- Debugging --- */ struct kbuffer *tracecmd_record_kbuf(struct tracecmd_input *handle, struct tep_record *record); void *tracecmd_record_page(struct tracecmd_input *handle, struct tep_record *record); void *tracecmd_record_offset(struct tracecmd_input *handle, struct tep_record *record); #ifdef PERF #include /* trace-cmd Perf */ struct trace_perf { int fd; int cpu; int pid; int pages; struct perf_event_attr pe; struct perf_event_mmap_page *mmap; }; int trace_perf_init(struct trace_perf *perf, int pages, int cpu, int pid); int trace_perf_open(struct trace_perf *perf); void trace_perf_close(struct trace_perf *perf); #endif #endif /* _TRACE_CMD_PRIVATE_H */