X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fbreakpoint.h;h=6b373a3592cfe0ac4a7fca19948a032023ef40e9;hb=58dadb1bdf0ace689fd17cab2676338fe32b44c0;hp=13e0a570d4b0dceecc880f058d65c02d3f5c3a1b;hpb=76897487dfbbf47c3bc8e324db4056db319adc7f;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h index 13e0a570d4..6b373a3592 100644 --- a/gdb/breakpoint.h +++ b/gdb/breakpoint.h @@ -1,12 +1,12 @@ /* Data structures associated with breakpoints in GDB. - Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 - Free Software Foundation, Inc. + Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, + 2002, 2003, 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. 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 + 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, @@ -15,17 +15,14 @@ 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. */ + along with this program. If not, see . */ #if !defined (BREAKPOINT_H) #define BREAKPOINT_H 1 #include "frame.h" #include "value.h" - -#include "gdb-events.h" +#include "vec.h" struct value; struct block; @@ -36,7 +33,8 @@ struct block; #define BREAKPOINT_MAX 16 -/* Type of breakpoint. */ + +/* Type of breakpoint. */ /* FIXME In the future, we should fold all other breakpoint-like things into here. This includes: @@ -62,9 +60,6 @@ enum bptype stepping over signal handlers, and for skipping prologues. */ bp_step_resume, - /* Used by wait_for_inferior for stepping over signal handlers. */ - bp_through_sigtramp, - /* Used to detect when a watchpoint expression has gone out of scope. These breakpoints are usually not visible to the user. @@ -116,30 +111,20 @@ enum bptype bp_overlay_event, - /* These breakpoints are used to implement the "catch load" command - on platforms whose dynamic linkers support such functionality. */ - bp_catch_load, + /* Master copies of longjmp breakpoints. These are always installed + as soon as an objfile containing longjmp is loaded, but they are + always disabled. While necessary, temporary clones of bp_longjmp + type will be created and enabled. */ - /* These breakpoints are used to implement the "catch unload" command - on platforms whose dynamic linkers support such functionality. */ - bp_catch_unload, + bp_longjmp_master, - /* These are not really breakpoints, but are catchpoints that - implement the "catch fork", "catch vfork" and "catch exec" commands - on platforms whose kernel support such functionality. (I.e., - kernels which can raise an event when a fork or exec occurs, as - opposed to the debugger setting breakpoints on functions named - "fork" or "exec".) */ - bp_catch_fork, - bp_catch_vfork, - bp_catch_exec, - - /* These are catchpoints to implement "catch catch" and "catch throw" - commands for C++ exception handling. */ - bp_catch_catch, - bp_catch_throw + bp_catchpoint, + bp_tracepoint, + bp_fast_tracepoint, + /* Event for JIT compiled code generation or deletion. */ + bp_jit_event, }; /* States of enablement of breakpoint. */ @@ -148,9 +133,6 @@ enum enable_state { bp_disabled, /* The eventpoint is inactive, and cannot trigger. */ bp_enabled, /* The eventpoint is active, and can trigger. */ - bp_shlib_disabled, /* The eventpoint's address is in an unloaded solib. - The eventpoint will be automatically enabled - and reset when that solib is loaded. */ bp_call_disabled, /* The eventpoint has been disabled while a call into the inferior is "in flight", because some eventpoints interfere with the implementation of @@ -158,6 +140,12 @@ enum enable_state automatically enabled and reset when the call "lands" (either completes, or stops at another eventpoint). */ + bp_startup_disabled,/* The eventpoint has been disabled during inferior + startup. This is necessary on some targets where + the main executable will get relocated during + startup, making breakpoint addresses invalid. + The eventpoint will be automatically enabled and + reset once inferior startup is complete. */ bp_permanent /* There is a breakpoint instruction hard-wired into the target's code. Don't try to write another breakpoint instruction on top of it, or restore @@ -184,24 +172,208 @@ enum target_hw_bp_type hw_execute = 3 /* Execute HW breakpoint */ }; + +/* Information used by targets to insert and remove breakpoints. */ + +struct bp_target_info +{ + /* Address space at which the breakpoint was placed. */ + struct address_space *placed_address_space; + + /* Address at which the breakpoint was placed. This is normally the + same as ADDRESS from the bp_location, except when adjustment + happens in gdbarch_breakpoint_from_pc. The most common form of + adjustment is stripping an alternate ISA marker from the PC which + is used to determine the type of breakpoint to insert. */ + CORE_ADDR placed_address; + + /* If the breakpoint lives in memory and reading that memory would + give back the breakpoint, instead of the original contents, then + the original contents are cached here. Only SHADOW_LEN bytes of + this buffer are valid, and only when the breakpoint is inserted. */ + gdb_byte shadow_contents[BREAKPOINT_MAX]; + + /* The length of the data cached in SHADOW_CONTENTS. */ + int shadow_len; + + /* The size of the placed breakpoint, according to + gdbarch_breakpoint_from_pc, when the breakpoint was inserted. This is + generally the same as SHADOW_LEN, unless we did not need + to read from the target to implement the memory breakpoint + (e.g. if a remote stub handled the details). We may still + need the size to remove the breakpoint safely. */ + int placed_size; +}; + +/* GDB maintains two types of information about each breakpoint (or + watchpoint, or other related event). The first type corresponds + to struct breakpoint; this is a relatively high-level structure + which contains the source location(s), stopping conditions, user + commands to execute when the breakpoint is hit, and so forth. + + The second type of information corresponds to struct bp_location. + Each breakpoint has one or (eventually) more locations associated + with it, which represent target-specific and machine-specific + mechanisms for stopping the program. For instance, a watchpoint + expression may require multiple hardware watchpoints in order to + catch all changes in the value of the expression being watched. */ + +enum bp_loc_type +{ + bp_loc_software_breakpoint, + bp_loc_hardware_breakpoint, + bp_loc_hardware_watchpoint, + bp_loc_other /* Miscellaneous... */ +}; + +struct bp_location +{ + /* Chain pointer to the next breakpoint location for + the same parent breakpoint. */ + struct bp_location *next; + + /* Type of this breakpoint location. */ + enum bp_loc_type loc_type; + + /* Each breakpoint location must belong to exactly one higher-level + breakpoint. This and the DUPLICATE flag are more straightforward + than reference counting. */ + struct breakpoint *owner; + + /* Conditional. Break only if this expression's value is nonzero. + Unlike string form of condition, which is associated with breakpoint, + this is associated with location, since if breakpoint has several + locations, the evaluation of expression can be different for + different locations. */ + struct expression *cond; + + /* This location's address is in an unloaded solib, and so this + location should not be inserted. It will be automatically + enabled when that solib is loaded. */ + char shlib_disabled; + + /* Is this particular location enabled. */ + char enabled; + + /* Nonzero if this breakpoint is now inserted. */ + char inserted; + + /* Nonzero if this is not the first breakpoint in the list + for the given address. */ + char duplicate; + + /* If we someday support real thread-specific breakpoints, then + the breakpoint location will need a thread identifier. */ + + /* Data for specific breakpoint types. These could be a union, but + simplicity is more important than memory usage for breakpoints. */ + + /* Architecture associated with this location's address. May be + different from the breakpoint architecture. */ + struct gdbarch *gdbarch; + + /* The program space associated with this breakpoint location + address. Note that an address space may be represented in more + than one program space (e.g. each uClinux program will be given + its own program space, but there will only be one address space + for all of them), but we must not insert more than one location + at the same address in the same address space. */ + struct program_space *pspace; + + /* Note that zero is a perfectly valid code address on some platforms + (for example, the mn10200 (OBSOLETE) and mn10300 simulators). NULL + is not a special value for this field. Valid for all types except + bp_loc_other. */ + CORE_ADDR address; + + /* For hardware watchpoints, the size of data ad ADDRESS being watches. */ + int length; + + /* Type of hardware watchpoint. */ + enum target_hw_bp_type watchpoint_type; + + /* For any breakpoint type with an address, this is the section + associated with the address. Used primarily for overlay debugging. */ + struct obj_section *section; + + /* Address at which breakpoint was requested, either by the user or + by GDB for internal breakpoints. This will usually be the same + as ``address'' (above) except for cases in which + ADJUST_BREAKPOINT_ADDRESS has computed a different address at + which to place the breakpoint in order to comply with a + processor's architectual constraints. */ + CORE_ADDR requested_address; + + char *function_name; + + /* Details of the placed breakpoint, when inserted. */ + struct bp_target_info target_info; + + /* Similarly, for the breakpoint at an overlay's LMA, if necessary. */ + struct bp_target_info overlay_target_info; + + /* In a non-stop mode, it's possible that we delete a breakpoint, + but as we do that, some still running thread hits that breakpoint. + For that reason, we need to keep locations belonging to deleted + breakpoints for a bit, so that don't report unexpected SIGTRAP. + We can't keep such locations forever, so we use a heuristic -- + after we process certain number of inferior events since + breakpoint was deleted, we retire all locations of that breakpoint. + This variable keeps a number of events still to go, when + it becomes 0 this location is retired. */ + int events_till_retirement; +}; + /* This structure is a collection of function pointers that, if available, will be called instead of the performing the default action for this bptype. */ struct breakpoint_ops { + /* Insert the breakpoint or activate the catchpoint. Should raise + an exception if the operation failed. */ + void (*insert) (struct breakpoint *); + + /* Remove the breakpoint/catchpoint that was previously inserted + with the "insert" method above. Return non-zero if the operation + succeeded. */ + int (*remove) (struct breakpoint *); + + /* Return non-zero if the debugger should tell the user that this + breakpoint was hit. */ + int (*breakpoint_hit) (struct breakpoint *); + /* The normal print routine for this breakpoint, called when we hit it. */ enum print_stop_action (*print_it) (struct breakpoint *); /* Display information about this breakpoint, for "info breakpoints". */ - void (*print_one) (struct breakpoint *, CORE_ADDR *); + void (*print_one) (struct breakpoint *, struct bp_location **); /* Display information about this breakpoint after setting it (roughly speaking; this is called from "mention"). */ void (*print_mention) (struct breakpoint *); }; +enum watchpoint_triggered +{ + /* This watchpoint definitely did not trigger. */ + watch_triggered_no = 0, + + /* Some hardware watchpoint triggered, and it might have been this + one, but we do not know which it was. */ + watch_triggered_unknown, + + /* This hardware watchpoint definitely did trigger. */ + watch_triggered_yes +}; + +/* This is used to declare the VEC syscalls_to_be_caught. */ +DEF_VEC_I(int); + +typedef struct bp_location *bp_location_p; +DEF_VEC_P(bp_location_p); + /* Note that the ->silent field is not currently used by any commands (though the code is in there if it was to be, and set_raw_breakpoint does set it to 0). I implemented it because I thought it would be @@ -222,18 +394,8 @@ struct breakpoint /* Number assigned to distinguish breakpoints. */ int number; - /* Address to break at. Note that zero is a perfectly valid code - address on some platforms (for example, the and mn10300 - simulators). NULL is not a special value for this field. */ - CORE_ADDR address; - - /* Address at which breakpoint was requested, either by the user or - by GDB for internal breakpoints. This will usually be the same - as ``address'' (above) except for cases in which - ADJUST_BREAKPOINT_ADDRESS has computed a different address at - which to place the breakpoint in order to comply with a - processor's architectual constraints. */ - CORE_ADDR requested_address; + /* Location(s) associated with this high-level breakpoint. */ + struct bp_location *loc; /* Line number of this address. */ @@ -249,26 +411,19 @@ struct breakpoint /* Number of stops at this breakpoint that should be continued automatically before really stopping. */ int ignore_count; - /* "Real" contents of byte where breakpoint has been inserted. - Valid only when breakpoints are in the program. Under the complete - control of the target insert_breakpoint and remove_breakpoint routines. - No other code should assume anything about the value(s) here. */ - char shadow_contents[BREAKPOINT_MAX]; - /* Nonzero if this breakpoint is now inserted. */ - char inserted; - /* Nonzero if this is not the first breakpoint in the list - for the given address. */ - char duplicate; /* Chain of command lines to execute when this breakpoint is hit. */ struct command_line *commands; /* Stack depth (address of frame). If nonzero, break only if fp equals this. */ struct frame_id frame_id; - /* Conditional. Break only if this expression's value is nonzero. */ - struct expression *cond; + + /* The program space used to set the breakpoint. */ + struct program_space *pspace; /* String we used to set the breakpoint (malloc'd). */ char *addr_string; + /* Architecture we used to set the breakpoint. */ + struct gdbarch *gdbarch; /* Language we used to set the breakpoint. */ enum language language; /* Input radix we used to set the breakpoint. */ @@ -284,11 +439,13 @@ struct breakpoint /* The largest block within which it is valid, or NULL if it is valid anywhere (e.g. consists just of global symbols). */ struct block *exp_valid_block; - /* Value of the watchpoint the last time we checked it. */ + /* Value of the watchpoint the last time we checked it, or NULL + when we do not know the value yet or the value was not + readable. VAL is never lazy. */ struct value *val; - - /* Holds the value chain for a hardware watchpoint expression. */ - struct value *val_chain; + /* Nonzero if VAL is valid. If VAL_VALID is set but VAL is NULL, + then an error occurred reading the value. */ + int val_valid; /* Holds the address of the related watchpoint_scope breakpoint when using watchpoints on local variables (might the concept @@ -301,40 +458,68 @@ struct breakpoint should be evaluated on the outermost frame. */ struct frame_id watchpoint_frame; - /* Thread number for thread-specific breakpoint, or -1 if don't care */ + /* Holds the thread which identifies the frame this watchpoint + should be considered in scope for, or `null_ptid' if the + watchpoint should be evaluated in all threads. */ + ptid_t watchpoint_thread; + + /* For hardware watchpoints, the triggered status according to the + hardware. */ + enum watchpoint_triggered watchpoint_triggered; + + /* Thread number for thread-specific breakpoint, or -1 if don't care. */ int thread; + /* Ada task number for task-specific breakpoint, or 0 if don't care. */ + int task; + /* Count of the number of times this breakpoint was taken, dumped with the info, but not used for anything else. Useful for seeing how many times you hit a break prior to the program aborting, so you can back up to just before the abort. */ int hit_count; - /* Filename of a dynamically-linked library (dll), used for - bp_catch_load and bp_catch_unload (malloc'd), or NULL if any - library is significant. */ - char *dll_pathname; - - /* Filename of a dll whose state change (e.g., load or unload) - triggered this catchpoint. This field is only valid immediately - after this catchpoint has triggered. */ - char *triggered_dll_pathname; - /* Process id of a child process whose forking triggered this catchpoint. This field is only valid immediately after this catchpoint has triggered. */ - int forked_inferior_pid; + ptid_t forked_inferior_pid; /* Filename of a program whose exec triggered this catchpoint. This field is only valid immediately after this catchpoint has triggered. */ char *exec_pathname; - asection *section; + /* Syscall numbers used for the 'catch syscall' feature. + If no syscall has been specified for filtering, its value is NULL. + Otherwise, it holds a list of all syscalls to be caught. + The list elements are allocated with xmalloc. */ + VEC(int) *syscalls_to_be_caught; /* Methods associated with this breakpoint. */ struct breakpoint_ops *ops; + + /* Is breakpoint's condition not yet parsed because we found + no location initially so had no context to parse + the condition in. */ + int condition_not_parsed; + + /* Number of times this tracepoint should single-step + and collect additional data. */ + long step_count; + + /* 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; + + /* The number of the tracepoint on the target. */ + int number_on_target; }; + +typedef struct breakpoint *breakpoint_p; +DEF_VEC_P(breakpoint_p); /* The following stuff is an abstract data type "bpstat" ("breakpoint status"). This provides the ability to determine whether we have @@ -342,16 +527,20 @@ struct breakpoint typedef struct bpstats *bpstat; -/* Interface: */ -/* Clear a bpstat so that it says we are not at any breakpoint. - Also free any storage that is part of a bpstat. */ +/* Frees any storage that is part of a bpstat. + Does not walk the 'next' chain. */ +extern void bpstat_free (bpstat); + +/* Clears a chain of bpstat, freeing storage + of each. */ extern void bpstat_clear (bpstat *); /* Return a copy of a bpstat. Like "bs1 = bs2" but all storage that is part of the bpstat is copied as well. */ extern bpstat bpstat_copy (bpstat); -extern bpstat bpstat_stop_status (CORE_ADDR *pc, int not_a_sw_breakpoint); +extern bpstat bpstat_stop_status (struct address_space *aspace, + CORE_ADDR pc, ptid_t ptid); /* This bpstat_what stuff tells wait_for_inferior what to do with a breakpoint (a challenging task). */ @@ -391,23 +580,15 @@ enum bpstat_what_main_action BPSTAT_WHAT_KEEP_CHECKING. */ BPSTAT_WHAT_CLEAR_LONGJMP_RESUME, - /* Clear longjmp_resume breakpoint, then handle as BPSTAT_WHAT_SINGLE. */ - BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE, - /* Clear step resume breakpoint, and keep checking. */ BPSTAT_WHAT_STEP_RESUME, - /* Clear through_sigtramp breakpoint, muck with trap_expected, and keep - checking. */ - BPSTAT_WHAT_THROUGH_SIGTRAMP, - /* Check the dynamic linker's data structures for new libraries, then keep checking. */ BPSTAT_WHAT_CHECK_SHLIBS, - /* Check the dynamic linker's data structures for new libraries, then - resume out of the dynamic linker's callback, stop and print. */ - BPSTAT_WHAT_CHECK_SHLIBS_RESUME_FROM_HOOK, + /* Check for new JITed code. */ + BPSTAT_WHAT_CHECK_JIT, /* This is just used to keep track of how many enums there are. */ BPSTAT_WHAT_LAST @@ -457,40 +638,38 @@ extern struct breakpoint *bpstat_find_step_resume_breakpoint (bpstat); a watchpoint enabled. */ #define bpstat_explains_signal(bs) ((bs) != NULL) +/* Nonzero is this bpstat causes a stop. */ +extern int bpstat_causes_stop (bpstat); + /* Nonzero if we should step constantly (e.g. watchpoints on machines without hardware support). This isn't related to a specific bpstat, just to things like whether watchpoints are set. */ extern int bpstat_should_step (void); -/* Nonzero if there are enabled hardware watchpoints. */ -extern int bpstat_have_active_hw_watchpoints (void); - /* Print a message indicating what happened. Returns nonzero to say that only the source line should be printed after this (zero return means print the frame as well as the source line). */ extern enum print_stop_action bpstat_print (bpstat); -/* Return the breakpoint number of the first breakpoint we are stopped +/* Put in *NUM the breakpoint number of the first breakpoint we are stopped at. *BSP upon return is a bpstat which points to the remaining breakpoints stopped at (but which is not guaranteed to be good for anything but further calls to bpstat_num). - Return 0 if passed a bpstat which does not indicate any breakpoints. */ -extern int bpstat_num (bpstat *); - -/* Perform actions associated with having stopped at *BSP. Actually, we just - use this for breakpoint commands. Perhaps other actions will go here - later, but this is executed at a late time (from the command loop). */ -extern void bpstat_do_actions (bpstat *); + Return 0 if passed a bpstat which does not indicate any breakpoints. + Return -1 if stopped at a breakpoint that has been deleted since + we set it. + Return 1 otherwise. */ +extern int bpstat_num (bpstat *, int *); + +/* Perform actions associated with the stopped inferior. Actually, we + just use this for breakpoint commands. Perhaps other actions will + go here later, but this is executed at a late time (from the + command loop). */ +extern void bpstat_do_actions (void); /* Modify BS so that the actions will not be performed. */ extern void bpstat_clear_actions (bpstat); -/* Given a bpstat that records zero or more triggered eventpoints, this - function returns another bpstat which contains only the catchpoints - on that first list, if any. - */ -extern void bpstat_get_triggered_catchpoints (bpstat, bpstat *); - /* Implementation: */ /* Values used to tell the printing routine how to behave for this bpstat. */ @@ -514,7 +693,7 @@ struct bpstats place, and a bpstat reflects the fact that both have been hit. */ bpstat next; /* Breakpoint that we are at. */ - struct breakpoint *breakpoint_at; + const struct bp_location *breakpoint_at; /* Commands left to be done. */ struct command_line *commands; /* Old value associated with a watchpoint. */ @@ -535,7 +714,8 @@ enum inf_context { inf_starting, inf_running, - inf_exited + inf_exited, + inf_execd }; /* The possible return values for breakpoint_here_p. @@ -550,18 +730,23 @@ enum breakpoint_here /* Prototypes for breakpoint-related functions. */ -extern enum breakpoint_here breakpoint_here_p (CORE_ADDR); +extern enum breakpoint_here breakpoint_here_p (struct address_space *, CORE_ADDR); + +extern int moribund_breakpoint_here_p (struct address_space *, CORE_ADDR); + +extern int breakpoint_inserted_here_p (struct address_space *, CORE_ADDR); -extern int breakpoint_inserted_here_p (CORE_ADDR); +extern int regular_breakpoint_inserted_here_p (struct address_space *, CORE_ADDR); -/* FIXME: cagney/2002-11-10: The current [generic] dummy-frame code - implements a functional superset of this function. The only reason - it hasn't been removed is because some architectures still don't - use the new framework. Once they have been fixed, this can go. */ -struct frame_info; -extern int deprecated_frame_in_dummy (struct frame_info *); +extern int software_breakpoint_inserted_here_p (struct address_space *, CORE_ADDR); -extern int breakpoint_thread_match (CORE_ADDR, ptid_t); +/* Returns true if there's a hardware watchpoint or access watchpoint + inserted in the range defined by ADDR and LEN. */ +extern int hardware_watchpoint_inserted_in_range (struct address_space *, + CORE_ADDR addr, + ULONGEST len); + +extern int breakpoint_thread_match (struct address_space *, CORE_ADDR, ptid_t); extern void until_break_command (char *, int, int); @@ -569,29 +754,27 @@ extern void breakpoint_re_set (void); extern void breakpoint_re_set_thread (struct breakpoint *); -extern int ep_is_exception_catchpoint (struct breakpoint *); - extern struct breakpoint *set_momentary_breakpoint - (struct symtab_and_line, struct frame_id, enum bptype); + (struct gdbarch *, struct symtab_and_line, struct frame_id, enum bptype); -extern void set_ignore_count (int, int, int); +extern struct breakpoint *set_momentary_breakpoint_at_pc + (struct gdbarch *, CORE_ADDR pc, enum bptype type); -extern void set_default_breakpoint (int, CORE_ADDR, struct symtab *, int); +extern struct breakpoint *clone_momentary_breakpoint (struct breakpoint *bpkt); -extern void mark_breakpoints_out (void); +extern void set_ignore_count (int, int, int); + +extern void set_default_breakpoint (int, struct program_space *, + CORE_ADDR, struct symtab *, int); extern void breakpoint_init_inferior (enum inf_context); extern struct cleanup *make_cleanup_delete_breakpoint (struct breakpoint *); -extern struct cleanup *make_exec_cleanup_delete_breakpoint (struct breakpoint *); - extern void delete_breakpoint (struct breakpoint *); extern void breakpoint_auto_delete (bpstat); -extern void breakpoint_clear_ignore_counts (void); - extern void break_command (char *, int); extern void hbreak_command_wrapper (char *, int); @@ -602,10 +785,19 @@ extern void awatch_command_wrapper (char *, int); extern void rwatch_command_wrapper (char *, int); extern void tbreak_command (char *, int); -extern int insert_breakpoints (void); +extern void set_breakpoint (struct gdbarch *gdbarch, + char *address, char *condition, + int hardwareflag, int tempflag, + int thread, int ignore_count, + int pending, + int enabled); + +extern void insert_breakpoints (void); extern int remove_breakpoints (void); +extern int remove_breakpoints_pid (int pid); + /* This function can be used to physically insert eventpoints from the specified traced inferior process, without modifying the breakpoint package's state. This can be useful for those targets which support @@ -641,12 +833,17 @@ extern void update_breakpoints_after_exec (void); inferior_ptid. */ extern int detach_breakpoints (int); -extern void enable_longjmp_breakpoint (void); -extern void disable_longjmp_breakpoint (void); +/* This function is called when program space PSPACE is about to be + deleted. It takes care of updating breakpoints to not reference + this PSPACE anymore. */ +extern void breakpoint_program_space_exit (struct program_space *pspace); + +extern void set_longjmp_breakpoint (int thread); +extern void delete_longjmp_breakpoint (int thread); + extern void enable_overlay_breakpoints (void); extern void disable_overlay_breakpoints (void); -extern void set_longjmp_resume_breakpoint (CORE_ADDR, struct frame_id); /* These functions respectively disable or reenable all currently enabled watchpoints. When disabled, the watchpoints are marked call_disabled. When reenabled, they are marked enabled. @@ -672,6 +869,23 @@ extern void disable_watchpoints_before_interactive_call_start (void); extern void enable_watchpoints_after_interactive_call_stop (void); +/* These functions disable and re-enable all breakpoints during + inferior startup. They are intended to be called from solib + code where necessary. This is needed on platforms where the + main executable is relocated at some point during startup + processing, making breakpoint addresses invalid. + + If additional breakpoints are created after the routine + disable_breakpoints_before_startup but before the routine + enable_breakpoints_after_startup was called, they will also + be marked as disabled. */ +extern void disable_breakpoints_before_startup (void); +extern void enable_breakpoints_after_startup (void); + +/* For script interpreters that need to define breakpoint commands + after they've already read the commands into a struct command_line. */ +extern enum command_control_type commands_from_control_command + (char *arg, struct command_line *cmd); extern void clear_breakpoint_hit_counts (void); @@ -679,6 +893,8 @@ extern int get_number (char **); extern int get_number_or_range (char **); +extern struct breakpoint *get_breakpoint (int num); + /* The following are for displays, which aren't really breakpoints, but here is as good a place as any for them. */ @@ -694,41 +910,32 @@ extern void disable_breakpoint (struct breakpoint *); extern void enable_breakpoint (struct breakpoint *); -extern void make_breakpoint_permanent (struct breakpoint *); - -extern struct breakpoint *create_solib_event_breakpoint (CORE_ADDR); +extern void breakpoint_set_commands (struct breakpoint *b, + struct command_line *commands); -extern struct breakpoint *create_thread_event_breakpoint (CORE_ADDR); - -extern void remove_solib_event_breakpoints (void); - -extern void remove_thread_event_breakpoints (void); +/* Clear the "inserted" flag in all breakpoints. */ +extern void mark_breakpoints_out (void); -extern void disable_breakpoints_in_shlibs (int silent); +extern void make_breakpoint_permanent (struct breakpoint *); -extern void re_enable_breakpoints_in_shlibs (void); +extern struct breakpoint *create_jit_event_breakpoint (struct gdbarch *, + CORE_ADDR); -extern void create_solib_load_event_breakpoint (char *, int, char *, char *); +extern struct breakpoint *create_solib_event_breakpoint (struct gdbarch *, + CORE_ADDR); -extern void create_solib_unload_event_breakpoint (char *, int, - char *, char *); +extern struct breakpoint *create_thread_event_breakpoint (struct gdbarch *, + CORE_ADDR); -extern void create_fork_event_catchpoint (int, char *); +extern void remove_solib_event_breakpoints (void); -extern void create_vfork_event_catchpoint (int, char *); +extern void remove_thread_event_breakpoints (void); -extern void create_exec_event_catchpoint (int, char *); +extern void disable_breakpoints_in_shlibs (void); /* This function returns TRUE if ep is a catchpoint. */ extern int ep_is_catchpoint (struct breakpoint *); -/* This function returns TRUE if ep is a catchpoint of a - shared library (aka dynamically-linked library) event, - such as a library load or unload. */ -extern int ep_is_shlib_catchpoint (struct breakpoint *); - -extern struct breakpoint *set_breakpoint_sal (struct symtab_and_line); - /* Enable breakpoints and delete when hit. Called with ARG == NULL deletes all breakpoints. */ extern void delete_command (char *arg, int from_tty); @@ -737,4 +944,58 @@ extern void delete_command (char *arg, int from_tty); remove fails. */ extern int remove_hw_watchpoints (void); +/* Manage a software single step breakpoint (or two). Insert may be called + twice before remove is called. */ +extern void insert_single_step_breakpoint (struct gdbarch *, + struct address_space *, CORE_ADDR); +extern void remove_single_step_breakpoints (void); + +/* Manage manual breakpoints, separate from the normal chain of + breakpoints. These functions are used in murky target-specific + ways. Please do not add more uses! */ +extern void *deprecated_insert_raw_breakpoint (struct gdbarch *, + struct address_space *, CORE_ADDR); +extern int deprecated_remove_raw_breakpoint (struct gdbarch *, void *); + +/* Check if any hardware watchpoints have triggered, according to the + target. */ +int watchpoints_triggered (struct target_waitstatus *); + +/* Update BUF, which is LEN bytes read from the target address MEMADDR, + by replacing any memory breakpoints with their shadowed contents. */ +void breakpoint_restore_shadows (gdb_byte *buf, ULONGEST memaddr, + LONGEST len); + +extern int breakpoints_always_inserted_mode (void); + +/* Called each time new event from target is processed. + Retires previously deleted breakpoint locations that + in our opinion won't ever trigger. */ +extern void breakpoint_retire_moribund (void); + +/* Checks if we are catching syscalls or not. + Returns 0 if not, greater than 0 if we are. */ +extern int catch_syscall_enabled (void); + +/* Checks if we are catching syscalls with the specific + syscall_number. Used for "filtering" the catchpoints. + Returns 0 if not, greater than 0 if we are. */ +extern int catching_syscall_number (int syscall_number); + +/* Tell a breakpoint to be quiet. */ +extern void make_breakpoint_silent (struct breakpoint *); + +/* Return a tracepoint with the given number if found. */ +extern struct breakpoint *get_tracepoint (int num); + +extern struct breakpoint *get_tracepoint_by_number_on_target (int num); + +/* Find a tracepoint by parsing a number in the supplied string. */ +extern struct breakpoint *get_tracepoint_by_number (char **arg, int multi_p, + int optional_p); + +/* Return a vector of all tracepoints currently defined. The vector + is newly allocated; the caller should free when done with it. */ +extern VEC(breakpoint_p) *all_tracepoints (void); + #endif /* !defined (BREAKPOINT_H) */