/* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License (not later!) * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, see <http://www.gnu.org/licenses> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */#ifndef _PARSE_EVENTS_H#define _PARSE_EVENTS_H #include <stdbool.h>#include <stdarg.h>#include <regex.h> #ifndef __maybe_unused#define __maybe_unused __attribute__((unused))#endif /* ----------------------- trace_seq ----------------------- */ #ifndef TRACE_SEQ_BUF_SIZE#define TRACE_SEQ_BUF_SIZE 4096#endif #ifndef DEBUG_RECORD#define DEBUG_RECORD 0#endif struct pevent_record { unsigned long long ts; unsigned long long offset; long long missed_events; /* buffer dropped events before */ int record_size; /* size of binary record */ int size; /* size of data */ void *data; int cpu; int ref_count; int locked; /* Do not free, even if ref_count is zero */ void *priv;#if DEBUG_RECORD struct pevent_record *prev; struct pevent_record *next; long alloc_addr;#endif}; /* * Trace sequences are used to allow a function to call several other functions * to create a string of data to use (up to a max of PAGE_SIZE). */ struct trace_seq { char *buffer; unsigned int buffer_size; unsigned int len; unsigned int readpos;}; void trace_seq_init(struct trace_seq *s);void trace_seq_reset(struct trace_seq *s);void trace_seq_destroy(struct trace_seq *s); extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args) __attribute__ ((format (printf, 2, 0))); extern int trace_seq_puts(struct trace_seq *s, const char *str);extern int trace_seq_putc(struct trace_seq *s, unsigned char c); extern void trace_seq_terminate(struct trace_seq *s); extern int trace_seq_do_printf(struct trace_seq *s); /* ----------------------- pevent ----------------------- */ struct pevent;struct event_format; typedef int (*pevent_event_handler_func)(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context); typedef int (*pevent_plugin_load_func)(struct pevent *pevent);typedef int (*pevent_plugin_unload_func)(void); struct plugin_option { struct plugin_option *next; void *handle; char *file; char *name; char *plugin_alias; char *description; char *value; void *priv; int set;}; /* * Plugin hooks that can be called: * * PEVENT_PLUGIN_LOADER: (required) * The function name to initialized the plugin. * * int PEVENT_PLUGIN_LOADER(struct pevent *pevent) * * PEVENT_PLUGIN_UNLOADER: (optional) * The function called just before unloading * * int PEVENT_PLUGIN_UNLOADER(void) * * PEVENT_PLUGIN_OPTIONS: (optional) * Plugin options that can be set before loading * * struct plugin_option PEVENT_PLUGIN_OPTIONS[] = { * { * .name = "option-name", * .plugin_alias = "overide-file-name", (optional) * .description = "description of option to show users", * }, * { * .name = NULL, * }, * }; * * Array must end with .name = NULL; * * * .plugin_alias is used to give a shorter name to access * the vairable. Useful if a plugin handles more than one event. * * PEVENT_PLUGIN_ALIAS: (optional) * The name to use for finding options (uses filename if not defined) */#define PEVENT_PLUGIN_LOADER pevent_plugin_loader#define PEVENT_PLUGIN_UNLOADER pevent_plugin_unloader#define PEVENT_PLUGIN_OPTIONS pevent_plugin_options#define PEVENT_PLUGIN_ALIAS pevent_plugin_alias#define _MAKE_STR(x) #x#define MAKE_STR(x) _MAKE_STR(x)#define PEVENT_PLUGIN_LOADER_NAME MAKE_STR(PEVENT_PLUGIN_LOADER)#define PEVENT_PLUGIN_UNLOADER_NAME MAKE_STR(PEVENT_PLUGIN_UNLOADER)#define PEVENT_PLUGIN_OPTIONS_NAME MAKE_STR(PEVENT_PLUGIN_OPTIONS)#define PEVENT_PLUGIN_ALIAS_NAME MAKE_STR(PEVENT_PLUGIN_ALIAS) #define NSECS_PER_SEC 1000000000ULL#define NSECS_PER_USEC 1000ULL enum format_flags { FIELD_IS_ARRAY = 1, FIELD_IS_POINTER = 2, FIELD_IS_SIGNED = 4, FIELD_IS_STRING = 8, FIELD_IS_DYNAMIC = 16, FIELD_IS_LONG = 32, FIELD_IS_FLAG = 64, FIELD_IS_SYMBOLIC = 128,}; struct format_field { struct format_field *next; struct event_format *event; char *type; char *name; int offset; int size; unsigned int arraylen; unsigned int elementsize; unsigned long flags;}; struct format { int nr_common; int nr_fields; struct format_field *common_fields; struct format_field *fields;}; struct print_arg_atom { char *atom;}; struct print_arg_string { char *string; int offset;}; struct print_arg_field { char *name; struct format_field *field;}; struct print_flag_sym { struct print_flag_sym *next; char *value; char *str;}; struct print_arg_typecast { char *type; struct print_arg *item;}; struct print_arg_flags { struct print_arg *field; char *delim; struct print_flag_sym *flags;}; struct print_arg_symbol { struct print_arg *field; struct print_flag_sym *symbols;}; struct print_arg_hex { struct print_arg *field; struct print_arg *size;}; struct print_arg_dynarray { struct format_field *field; struct print_arg *index;}; struct print_arg; struct print_arg_op { char *op; int prio; struct print_arg *left; struct print_arg *right;}; struct pevent_function_handler; struct print_arg_func { struct pevent_function_handler *func; struct print_arg *args;}; enum print_arg_type { PRINT_NULL, PRINT_ATOM, PRINT_FIELD, PRINT_FLAGS, PRINT_SYMBOL, PRINT_HEX, PRINT_TYPE, PRINT_STRING, PRINT_BSTRING, PRINT_DYNAMIC_ARRAY, PRINT_OP, PRINT_FUNC,}; struct print_arg { struct print_arg *next; enum print_arg_type type; union { struct print_arg_atom atom; struct print_arg_field field; struct print_arg_typecast typecast; struct print_arg_flags flags; struct print_arg_symbol symbol; struct print_arg_hex hex; struct print_arg_func func; struct print_arg_string string; struct print_arg_op op; struct print_arg_dynarray dynarray; };}; struct print_fmt { char *format; struct print_arg *args;}; struct event_format { struct pevent *pevent; char *name; int id; int flags; struct format format; struct print_fmt print_fmt; char *system; pevent_event_handler_func handler; void *context;}; enum { EVENT_FL_ISFTRACE = 0x01, EVENT_FL_ISPRINT = 0x02, EVENT_FL_ISBPRINT = 0x04, EVENT_FL_ISFUNCENT = 0x10, EVENT_FL_ISFUNCRET = 0x20, EVENT_FL_NOHANDLE = 0x40, EVENT_FL_PRINTRAW = 0x80, EVENT_FL_FAILED = 0x80000000}; enum event_sort_type { EVENT_SORT_ID, EVENT_SORT_NAME, EVENT_SORT_SYSTEM,}; enum event_type { EVENT_ERROR, EVENT_NONE, EVENT_SPACE, EVENT_NEWLINE, EVENT_OP, EVENT_DELIM, EVENT_ITEM, EVENT_DQUOTE, EVENT_SQUOTE,}; typedef unsigned long long (*pevent_func_handler)(struct trace_seq *s, unsigned long long *args); enum pevent_func_arg_type { PEVENT_FUNC_ARG_VOID, PEVENT_FUNC_ARG_INT, PEVENT_FUNC_ARG_LONG, PEVENT_FUNC_ARG_STRING, PEVENT_FUNC_ARG_PTR, PEVENT_FUNC_ARG_MAX_TYPES}; enum pevent_flag { PEVENT_NSEC_OUTPUT = 1, /* output in NSECS */}; #define PEVENT_ERRORS \ _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \ _PE(PARSE_EVENT_FAILED, "failed to parse event"), \ _PE(READ_ID_FAILED, "failed to read event id"), \ _PE(READ_FORMAT_FAILED, "failed to read event format"), \ _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \ _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\ _PE(INVALID_ARG_TYPE, "invalid argument type") #undef _PE#define _PE(__code, __str) PEVENT_ERRNO__ ## __codeenum pevent_errno { PEVENT_ERRNO__SUCCESS = 0, /* * Choose an arbitrary negative big number not to clash with standard * errno since SUS requires the errno has distinct positive values. * See 'Issue 6' in the link below. * * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html */ __PEVENT_ERRNO__START = -100000, PEVENT_ERRORS, __PEVENT_ERRNO__END,};#undef _PE struct cmdline;struct cmdline_list;struct func_map;struct func_list;struct event_handler; struct pevent { int ref_count; int header_page_ts_offset; int header_page_ts_size; int header_page_size_offset; int header_page_size_size; int header_page_data_offset; int header_page_data_size; int header_page_overwrite; int file_bigendian; int host_bigendian; int latency_format; int old_format; int cpus; int long_size; int page_size; struct cmdline *cmdlines; struct cmdline_list *cmdlist; int cmdline_count; struct func_map *func_map; struct func_list *funclist; unsigned int func_count; struct printk_map *printk_map; struct printk_list *printklist; unsigned int printk_count; struct event_format **events; int nr_events; struct event_format **sort_events; enum event_sort_type last_type; int type_offset; int type_size; int pid_offset; int pid_size; int pc_offset; int pc_size; int flags_offset; int flags_size; int ld_offset; int ld_size; int print_raw; int test_filters; int flags; struct format_field *bprint_ip_field; struct format_field *bprint_fmt_field; struct format_field *bprint_buf_field; struct event_handler *handlers; struct pevent_function_handler *func_handlers; /* cache */ struct event_format *last_event; char *trace_clock;}; static inline void pevent_set_flag(struct pevent *pevent, int flag){ pevent->flags |= flag;} static inline unsigned short__data2host2(struct pevent *pevent, unsigned short data){ unsigned short swap; if (pevent->host_bigendian == pevent->file_bigendian) return data; swap = ((data & 0xffULL) << 8) | ((data & (0xffULL << 8)) >> 8); return swap;} static inline unsigned int__data2host4(struct pevent *pevent, unsigned int data){ unsigned int swap; if (pevent->host_bigendian == pevent->file_bigendian) return data; swap = ((data & 0xffULL) << 24) | ((data & (0xffULL << 8)) << 8) | ((data & (0xffULL << 16)) >> 8) | ((data & (0xffULL << 24)) >> 24); return swap;} static inline unsigned long long__data2host8(struct pevent *pevent, unsigned long long data){ unsigned long long swap; if (pevent->host_bigendian == pevent->file_bigendian)Lines 1–500 of 867. 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/* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License (not later!) * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, see <http://www.gnu.org/licenses> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #ifndef _PARSE_EVENTS_H #define _PARSE_EVENTS_H #include <stdbool.h> #include <stdarg.h> #include <regex.h> #ifndef __maybe_unused #define __maybe_unused __attribute__((unused)) #endif /* ----------------------- trace_seq ----------------------- */ #ifndef TRACE_SEQ_BUF_SIZE #define TRACE_SEQ_BUF_SIZE 4096 #endif #ifndef DEBUG_RECORD #define DEBUG_RECORD 0 #endif struct pevent_record { unsigned long long ts; unsigned long long offset; long long missed_events; /* buffer dropped events before */ int record_size; /* size of binary record */ int size; /* size of data */ void *data; int cpu; int ref_count; int locked; /* Do not free, even if ref_count is zero */ void *priv; #if DEBUG_RECORD struct pevent_record *prev; struct pevent_record *next; long alloc_addr; #endif }; /* * Trace sequences are used to allow a function to call several other functions * to create a string of data to use (up to a max of PAGE_SIZE). */ struct trace_seq { char *buffer; unsigned int buffer_size; unsigned int len; unsigned int readpos; }; void trace_seq_init(struct trace_seq *s); void trace_seq_reset(struct trace_seq *s); void trace_seq_destroy(struct trace_seq *s); extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...) __attribute__ ((format (printf, 2, 3))); extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args) __attribute__ ((format (printf, 2, 0))); extern int trace_seq_puts(struct trace_seq *s, const char *str); extern int trace_seq_putc(struct trace_seq *s, unsigned char c); extern void trace_seq_terminate(struct trace_seq *s); extern int trace_seq_do_printf(struct trace_seq *s); /* ----------------------- pevent ----------------------- */ struct pevent; struct event_format; typedef int (*pevent_event_handler_func)(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context); typedef int (*pevent_plugin_load_func)(struct pevent *pevent); typedef int (*pevent_plugin_unload_func)(void); struct plugin_option { struct plugin_option *next; void *handle; char *file; char *name; char *plugin_alias; char *description; char *value; void *priv; int set; }; /* * Plugin hooks that can be called: * * PEVENT_PLUGIN_LOADER: (required) * The function name to initialized the plugin. * * int PEVENT_PLUGIN_LOADER(struct pevent *pevent) * * PEVENT_PLUGIN_UNLOADER: (optional) * The function called just before unloading * * int PEVENT_PLUGIN_UNLOADER(void) * * PEVENT_PLUGIN_OPTIONS: (optional) * Plugin options that can be set before loading * * struct plugin_option PEVENT_PLUGIN_OPTIONS[] = { * { * .name = "option-name", * .plugin_alias = "overide-file-name", (optional) * .description = "description of option to show users", * }, * { * .name = NULL, * }, * }; * * Array must end with .name = NULL; * * * .plugin_alias is used to give a shorter name to access * the vairable. Useful if a plugin handles more than one event. * * PEVENT_PLUGIN_ALIAS: (optional) * The name to use for finding options (uses filename if not defined) */ #define PEVENT_PLUGIN_LOADER pevent_plugin_loader #define PEVENT_PLUGIN_UNLOADER pevent_plugin_unloader #define PEVENT_PLUGIN_OPTIONS pevent_plugin_options #define PEVENT_PLUGIN_ALIAS pevent_plugin_alias #define _MAKE_STR(x) #x #define MAKE_STR(x) _MAKE_STR(x) #define PEVENT_PLUGIN_LOADER_NAME MAKE_STR(PEVENT_PLUGIN_LOADER) #define PEVENT_PLUGIN_UNLOADER_NAME MAKE_STR(PEVENT_PLUGIN_UNLOADER) #define PEVENT_PLUGIN_OPTIONS_NAME MAKE_STR(PEVENT_PLUGIN_OPTIONS) #define PEVENT_PLUGIN_ALIAS_NAME MAKE_STR(PEVENT_PLUGIN_ALIAS) #define NSECS_PER_SEC 1000000000ULL #define NSECS_PER_USEC 1000ULL enum format_flags { FIELD_IS_ARRAY = 1, FIELD_IS_POINTER = 2, FIELD_IS_SIGNED = 4, FIELD_IS_STRING = 8, FIELD_IS_DYNAMIC = 16, FIELD_IS_LONG = 32, FIELD_IS_FLAG = 64, FIELD_IS_SYMBOLIC = 128, }; struct format_field { struct format_field *next; struct event_format *event; char *type; char *name; int offset; int size; unsigned int arraylen; unsigned int elementsize; unsigned long flags; }; struct format { int nr_common; int nr_fields; struct format_field *common_fields; struct format_field *fields; }; struct print_arg_atom { char *atom; }; struct print_arg_string { char *string; int offset; }; struct print_arg_field { char *name; struct format_field *field; }; struct print_flag_sym { struct print_flag_sym *next; char *value; char *str; }; struct print_arg_typecast { char *type; struct print_arg *item; }; struct print_arg_flags { struct print_arg *field; char *delim; struct print_flag_sym *flags; }; struct print_arg_symbol { struct print_arg *field; struct print_flag_sym *symbols; }; struct print_arg_hex { struct print_arg *field; struct print_arg *size; }; struct print_arg_dynarray { struct format_field *field; struct print_arg *index; }; struct print_arg; struct print_arg_op { char *op; int prio; struct print_arg *left; struct print_arg *right; }; struct pevent_function_handler; struct print_arg_func { struct pevent_function_handler *func; struct print_arg *args; }; enum print_arg_type { PRINT_NULL, PRINT_ATOM, PRINT_FIELD, PRINT_FLAGS, PRINT_SYMBOL, PRINT_HEX, PRINT_TYPE, PRINT_STRING, PRINT_BSTRING, PRINT_DYNAMIC_ARRAY, PRINT_OP, PRINT_FUNC, }; struct print_arg { struct print_arg *next; enum print_arg_type type; union { struct print_arg_atom atom; struct print_arg_field field; struct print_arg_typecast typecast; struct print_arg_flags flags; struct print_arg_symbol symbol; struct print_arg_hex hex; struct print_arg_func func; struct print_arg_string string; struct print_arg_op op; struct print_arg_dynarray dynarray; }; }; struct print_fmt { char *format; struct print_arg *args; }; struct event_format { struct pevent *pevent; char *name; int id; int flags; struct format format; struct print_fmt print_fmt; char *system; pevent_event_handler_func handler; void *context; }; enum { EVENT_FL_ISFTRACE = 0x01, EVENT_FL_ISPRINT = 0x02, EVENT_FL_ISBPRINT = 0x04, EVENT_FL_ISFUNCENT = 0x10, EVENT_FL_ISFUNCRET = 0x20, EVENT_FL_NOHANDLE = 0x40, EVENT_FL_PRINTRAW = 0x80, EVENT_FL_FAILED = 0x80000000 }; enum event_sort_type { EVENT_SORT_ID, EVENT_SORT_NAME, EVENT_SORT_SYSTEM, }; enum event_type { EVENT_ERROR, EVENT_NONE, EVENT_SPACE, EVENT_NEWLINE, EVENT_OP, EVENT_DELIM, EVENT_ITEM, EVENT_DQUOTE, EVENT_SQUOTE, }; typedef unsigned long long (*pevent_func_handler)(struct trace_seq *s, unsigned long long *args); enum pevent_func_arg_type { PEVENT_FUNC_ARG_VOID, PEVENT_FUNC_ARG_INT, PEVENT_FUNC_ARG_LONG, PEVENT_FUNC_ARG_STRING, PEVENT_FUNC_ARG_PTR, PEVENT_FUNC_ARG_MAX_TYPES }; enum pevent_flag { PEVENT_NSEC_OUTPUT = 1, /* output in NSECS */ }; #define PEVENT_ERRORS \ _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \ _PE(PARSE_EVENT_FAILED, "failed to parse event"), \ _PE(READ_ID_FAILED, "failed to read event id"), \ _PE(READ_FORMAT_FAILED, "failed to read event format"), \ _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \ _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\ _PE(INVALID_ARG_TYPE, "invalid argument type") #undef _PE #define _PE(__code, __str) PEVENT_ERRNO__ ## __code enum pevent_errno { PEVENT_ERRNO__SUCCESS = 0, /* * Choose an arbitrary negative big number not to clash with standard * errno since SUS requires the errno has distinct positive values. * See 'Issue 6' in the link below. * * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html */ __PEVENT_ERRNO__START = -100000, PEVENT_ERRORS, __PEVENT_ERRNO__END, }; #undef _PE struct cmdline; struct cmdline_list; struct func_map; struct func_list; struct event_handler; struct pevent { int ref_count; int header_page_ts_offset; int header_page_ts_size; int header_page_size_offset; int header_page_size_size; int header_page_data_offset; int header_page_data_size; int header_page_overwrite; int file_bigendian; int host_bigendian; int latency_format; int old_format; int cpus; int long_size; int page_size; struct cmdline *cmdlines; struct cmdline_list *cmdlist; int cmdline_count; struct func_map *func_map; struct func_list *funclist; unsigned int func_count; struct printk_map *printk_map; struct printk_list *printklist; unsigned int printk_count; struct event_format **events; int nr_events; struct event_format **sort_events; enum event_sort_type last_type; int type_offset; int type_size; int pid_offset; int pid_size; int pc_offset; int pc_size; int flags_offset; int flags_size; int ld_offset; int ld_size; int print_raw; int test_filters; int flags; struct format_field *bprint_ip_field; struct format_field *bprint_fmt_field; struct format_field *bprint_buf_field; struct event_handler *handlers; struct pevent_function_handler *func_handlers; /* cache */ struct event_format *last_event; char *trace_clock; }; static inline void pevent_set_flag(struct pevent *pevent, int flag) { pevent->flags |= flag; } static inline unsigned short __data2host2(struct pevent *pevent, unsigned short data) { unsigned short swap; if (pevent->host_bigendian == pevent->file_bigendian) return data; swap = ((data & 0xffULL) << 8) | ((data & (0xffULL << 8)) >> 8); return swap; } static inline unsigned int __data2host4(struct pevent *pevent, unsigned int data) { unsigned int swap; if (pevent->host_bigendian == pevent->file_bigendian) return data; swap = ((data & 0xffULL) << 24) | ((data & (0xffULL << 8)) << 8) | ((data & (0xffULL << 16)) >> 8) | ((data & (0xffULL << 24)) >> 24); return swap; } static inline unsigned long long __data2host8(struct pevent *pevent, unsigned long long data) { unsigned long long swap; if (pevent->host_bigendian == pevent->file_bigendian)