X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Ftracepoint.h;h=b94537c8c8e961717b2c7ac4f057004b699b6c3a;hb=35f5825a72aa7f4fcddc06f6505f3ab3f39951ff;hp=2dc13bdb5b33bc19125ada0283139949080b8e6c;hpb=63d138d980e5697589b510369daa51c620a23409;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/tracepoint.h b/gdb/tracepoint.h index 2dc13bdb5b..b94537c8c8 100644 --- a/gdb/tracepoint.h +++ b/gdb/tracepoint.h @@ -1,136 +1,260 @@ /* Data structures associated with tracepoints in GDB. - Copyright (C) 1997 Free Software Foundation, Inc. + Copyright (C) 1997, 1998, 1999, 2000, 2007, 2008, 2009, 2010, 2011 + Free Software Foundation, Inc. -This file is part of GDB. + This file is part of GDB. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. -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 General Public License for more details. + 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 General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ #if !defined (TRACEPOINT_H) #define TRACEPOINT_H 1 -#if !defined (BREAKPOINT_H) -enum enable { disabled, enabled }; -#endif -/* The data structure for an action: */ -struct action_line +#include "breakpoint.h" +#include "target.h" +#include "memrange.h" + +/* A trace state variable is a value managed by a target being + traced. A trace state variable (or tsv for short) can be accessed + and assigned to by tracepoint actions and conditionals, but is not + part of the program being traced, and it doesn't have to be + collected. Effectively the variables are scratch space for + tracepoints. */ + +struct trace_state_variable + { + /* The variable's name. The user has to prefix with a dollar sign, + but we don't store that internally. */ + const char *name; + + /* An id number assigned by GDB, and transmitted to targets. */ + int number; + + /* The initial value of a variable is a 64-bit signed integer. */ + LONGEST initial_value; + + /* 1 if the value is known, else 0. The value is known during a + trace run, or in tfind mode if the variable was collected into + the current trace frame. */ + int value_known; + + /* The value of a variable is a 64-bit signed integer. */ + LONGEST value; + + /* This is true for variables that are predefined and built into + the target. */ + int builtin; + }; + +/* The trace status encompasses various info about the general state + of the tracing run. */ + +enum trace_stop_reason + { + trace_stop_reason_unknown, + trace_never_run, + tstop_command, + trace_buffer_full, + trace_disconnected, + tracepoint_passcount, + tracepoint_error + }; + +struct trace_status { - struct action_line *next; - char *action; + /* This is true if the status is coming from a file rather + than a live target. */ + int from_file; + + /* This is true if the value of the running field is known. */ + int running_known; + + int running; + + enum trace_stop_reason stop_reason; + + /* If stop_reason is tracepoint_passcount or tracepoint_error, this + is the (on-target) number of the tracepoint which caused the + stop. */ + int stopping_tracepoint; + + /* If stop_reason is tracepoint_error, this is a human-readable + string that describes the error that happened on the target. */ + char *error_desc; + + /* Number of traceframes currently in the buffer. */ + + int traceframe_count; + + /* Number of traceframes created since start of run. */ + + int traceframes_created; + + /* Total size of the target's trace buffer. */ + + int buffer_size; + + /* Unused bytes left in the target's trace buffer. */ + + int buffer_free; + + /* 1 if the target will continue tracing after disconnection, else + 0. If the target does not report a value, assume 0. */ + + int disconnected_tracing; + + /* 1 if the target is using a circular trace buffer, else 0. If the + target does not report a value, assume 0. */ + + int circular_buffer; }; -/* The data structure for a tracepoint: */ +struct trace_status *current_trace_status (void); + +extern char *default_collect; + +/* Struct to collect random info about tracepoints on the target. */ -struct tracepoint +DEF_VEC_P (char_ptr); + +struct uploaded_tp { - struct tracepoint *next; + int number; + enum bptype type; + ULONGEST addr; + int enabled; + int step; + int pass; + int orig_size; + + /* String that is the encoded form of the tracepoint's condition. */ + char *cond; + + /* Vectors of strings that are the encoded forms of a tracepoint's + actions. */ + VEC(char_ptr) *actions; + VEC(char_ptr) *step_actions; + + /* The original string defining the location of the tracepoint. */ + char *at_string; - enum enable enabled; + /* The original string defining the tracepoint's condition. */ + char *cond_string; -#if 0 - /* Type of tracepoint (MVS FIXME: needed?). */ - enum tptype type; + /* List of original strings defining the tracepoint's actions. */ + VEC(char_ptr) *cmd_strings; - /* What to do with this tracepoint after we hit it MVS FIXME: needed?). */ - enum tpdisp disposition; -#endif - /* Number assigned to distinguish tracepoints. */ + struct uploaded_tp *next; +}; + +/* Struct recording info about trace state variables on the target. */ + +struct uploaded_tsv +{ + const char *name; int number; + LONGEST initial_value; + int builtin; + struct uploaded_tsv *next; +}; + +/* Struct recording info about a target static tracepoint marker. */ - /* Address to trace at, or NULL if not an instruction tracepoint (MVS ?). */ +struct static_tracepoint_marker +{ + struct gdbarch *gdbarch; CORE_ADDR address; - /* Line number of this address. Only matters if address is non-NULL. */ - int line_number; + /* The string ID of the marker. */ + char *str_id; - /* Source file name of this address. Only matters if address is non-NULL. */ - char *source_file; + /* Extra target reported info associated with the marker. */ + char *extra; +}; - /* Number of times this tracepoint should single-step - and collect additional data */ - long step_count; +extern void parse_static_tracepoint_marker_definition + (char *line, char **pp, + struct static_tracepoint_marker *marker); +extern void release_static_tracepoint_marker (struct static_tracepoint_marker *); - /* Number of times this tracepoint should be hit before disabling/ending. */ - int pass_count; - - /* Chain of action lines to execute when this tracepoint is hit. */ - struct action_line *actions; +/* A hook used to notify the UI of tracepoint operations. */ - /* Conditional (MVS ?). */ - struct expression *cond; +extern void (*deprecated_trace_find_hook) (char *arg, int from_tty); +extern void (*deprecated_trace_start_stop_hook) (int start, int from_tty); - /* String we used to set the tracepoint (malloc'd). Only matters if - address is non-NULL. */ - char *addr_string; +/* Returns the current traceframe number. */ +extern int get_traceframe_number (void); - /* Language we used to set the tracepoint. */ - enum language language; +/* Make the traceframe NUM be the current GDB trace frame number, and + do nothing more. In particular, this does not flush the + register/frame caches or notify the target about the trace frame + change, so that is can be used when we need to momentarily access + live memory. Targets lazily switch their current traceframe to + match GDB's traceframe number, at the appropriate times. */ +extern void set_traceframe_number (int); - /* Input radix we used to set the tracepoint. */ - int input_radix; +/* Make the traceframe NUM be the current trace frame, all the way to + the target, and flushes all global state (register/frame caches, + etc.). */ +extern void set_current_traceframe (int num); - /* Count of the number of times this tracepoint was taken, dumped - with the info, but not used for anything else. Useful for - seeing how many times you hit a tracepoint prior to the program - aborting, so you can back up to just before the abort. */ - int hit_count; +struct cleanup *make_cleanup_restore_current_traceframe (void); +struct cleanup *make_cleanup_restore_traceframe_number (void); - /* Thread number for thread-specific tracepoint, or -1 if don't care */ - int thread; +void free_actions (struct breakpoint *); +extern void validate_actionline (char **, struct breakpoint *); - /* BFD section, in case of overlays: - no, I don't know if tracepoints are really gonna work with overlays. */ - asection *section; -}; +extern void end_actions_pseudocommand (char *args, int from_tty); +extern void while_stepping_pseudocommand (char *args, int from_tty); -enum actionline_type -{ - BADLINE = -1, - GENERIC = 0, - END = 1, - STEPPING = 2, -}; +extern struct trace_state_variable *find_trace_state_variable (const char *name); +extern struct trace_state_variable *create_trace_state_variable (const char *name); + +extern int encode_source_string (int num, ULONGEST addr, + char *srctype, char *src, + char *buf, int buf_size); + +extern void parse_trace_status (char *line, struct trace_status *ts); +extern void parse_tracepoint_definition (char *line, + struct uploaded_tp **utpp); +extern void parse_tsv_definition (char *line, struct uploaded_tsv **utsvp); -/* The tracepont chain of all tracepoints */ +extern struct uploaded_tp *get_uploaded_tp (int num, ULONGEST addr, + struct uploaded_tp **utpp); +extern struct breakpoint *create_tracepoint_from_upload (struct uploaded_tp *utp); +extern void merge_uploaded_tracepoints (struct uploaded_tp **utpp); +extern void merge_uploaded_trace_state_variables (struct uploaded_tsv **utsvp); -extern struct tracepoint *tracepoint_chain; +extern void disconnect_tracing (int from_tty); -extern unsigned long trace_running_p; +extern void start_tracing (void); +extern void stop_tracing (void); -/* A hook used to notify the UI of tracepoint operations */ +extern void trace_status_mi (int on_stop); -void (*create_tracepoint_hook) PARAMS ((struct tracepoint *)); -void (*delete_tracepoint_hook) PARAMS ((struct tracepoint *)); -void (*modify_tracepoint_hook) PARAMS ((struct tracepoint *)); -void (*trace_find_hook) PARAMS ((char *arg, int from_tty)); +extern void tvariables_info_1 (void); +extern void save_trace_state_variables (struct ui_file *fp); -struct tracepoint *get_tracepoint_by_number PARAMS ((char **)); -int get_traceframe_number PARAMS ((void)); -void free_actions PARAMS((struct tracepoint *)); -enum actionline_type validate_actionline PARAMS((char **, - struct tracepoint *)); +extern void tfind_1 (enum trace_find_type type, int num, + ULONGEST addr1, ULONGEST addr2, + int from_tty); +extern void trace_save (const char *filename, int target_does_save); -/* Walk the following statement or block through all tracepoints. - ALL_TRACEPOINTS_SAFE does so even if the statment deletes the current - breakpoint. */ +extern struct traceframe_info *parse_traceframe_info (const char *tframe_info); -#define ALL_TRACEPOINTS(t) for (t = tracepoint_chain; t; t = t->next) +extern int traceframe_available_memory (VEC(mem_range_s) **result, + CORE_ADDR memaddr, ULONGEST len); -#define ALL_TRACEPOINTS_SAFE(t,tmp) \ - for (t = tracepoint_chain; \ - t ? (tmp = t->next, 1) : 0;\ - t = tmp) -#endif /* TRACEPOINT_H */ +#endif /* TRACEPOINT_H */