diff options
Diffstat (limited to 'gdb/breakpoint.h')
| -rw-r--r-- | gdb/breakpoint.h | 672 |
1 files changed, 339 insertions, 333 deletions
diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h index 8eec1f5..8061e86 100644 --- a/gdb/breakpoint.h +++ b/gdb/breakpoint.h @@ -1,21 +1,22 @@ /* Data structures associated with breakpoints in GDB. Copyright (C) 1992, 93, 94, 95, 96, 98, 1999 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 2 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, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ #if !defined (BREAKPOINT_H) #define BREAKPOINT_H 1 @@ -34,33 +35,34 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ here. This includes: * single-step (for machines where we have to simulate single stepping) - (probably, though perhaps it is better for it to look as much as - possible like a single-step to wait_for_inferior). */ - -enum bptype { - bp_none = 0, /* Eventpoint has been deleted. */ - bp_breakpoint, /* Normal breakpoint */ - bp_hardware_breakpoint, /* Hardware assisted breakpoint */ - bp_until, /* used by until command */ - bp_finish, /* used by finish command */ - bp_watchpoint, /* Watchpoint */ - bp_hardware_watchpoint, /* Hardware assisted watchpoint */ - bp_read_watchpoint, /* read watchpoint, (hardware assisted) */ - bp_access_watchpoint, /* access watchpoint, (hardware assisted) */ - bp_longjmp, /* secret breakpoint to find longjmp() */ - bp_longjmp_resume, /* secret breakpoint to escape longjmp() */ - - /* Used by wait_for_inferior for stepping over subroutine calls, for - 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. - - This breakpoint has some interesting properties: + (probably, though perhaps it is better for it to look as much as + possible like a single-step to wait_for_inferior). */ + +enum bptype + { + bp_none = 0, /* Eventpoint has been deleted. */ + bp_breakpoint, /* Normal breakpoint */ + bp_hardware_breakpoint, /* Hardware assisted breakpoint */ + bp_until, /* used by until command */ + bp_finish, /* used by finish command */ + bp_watchpoint, /* Watchpoint */ + bp_hardware_watchpoint, /* Hardware assisted watchpoint */ + bp_read_watchpoint, /* read watchpoint, (hardware assisted) */ + bp_access_watchpoint, /* access watchpoint, (hardware assisted) */ + bp_longjmp, /* secret breakpoint to find longjmp() */ + bp_longjmp_resume, /* secret breakpoint to escape longjmp() */ + + /* Used by wait_for_inferior for stepping over subroutine calls, for + 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. + + This breakpoint has some interesting properties: 1) There's always a 1:1 mapping between watchpoints on local variables and watchpoint_scope breakpoints. @@ -69,78 +71,80 @@ enum bptype { associated with when hit. 3) It can never be disabled. */ - bp_watchpoint_scope, - - /* The breakpoint at the end of a call dummy. */ - /* FIXME: What if the function we are calling longjmp()s out of the - call, or the user gets out with the "return" command? We currently - have no way of cleaning up the breakpoint in these (obscure) situations. - (Probably can solve this by noticing longjmp, "return", etc., it's - similar to noticing when a watchpoint on a local variable goes out - of scope (with hardware support for watchpoints)). */ - bp_call_dummy, - - /* Some dynamic linkers (HP, maybe Solaris) can arrange for special - code in the inferior to run when significant events occur in the - dynamic linker (for example a library is loaded or unloaded). - - By placing a breakpoint in this magic code GDB will get control - when these significant events occur. GDB can then re-examine - the dynamic linker's data structures to discover any newly loaded - dynamic libraries. */ - bp_shlib_event, - - /* These breakpoints are used to implement the "catch load" command - on platforms whose dynamic linkers support such functionality. */ - bp_catch_load, - - /* These breakpoints are used to implement the "catch unload" command - on platforms whose dynamic linkers support such functionality. */ - bp_catch_unload, - - /* 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_watchpoint_scope, + + /* The breakpoint at the end of a call dummy. */ + /* FIXME: What if the function we are calling longjmp()s out of the + call, or the user gets out with the "return" command? We currently + have no way of cleaning up the breakpoint in these (obscure) situations. + (Probably can solve this by noticing longjmp, "return", etc., it's + similar to noticing when a watchpoint on a local variable goes out + of scope (with hardware support for watchpoints)). */ + bp_call_dummy, + + /* Some dynamic linkers (HP, maybe Solaris) can arrange for special + code in the inferior to run when significant events occur in the + dynamic linker (for example a library is loaded or unloaded). + + By placing a breakpoint in this magic code GDB will get control + when these significant events occur. GDB can then re-examine + the dynamic linker's data structures to discover any newly loaded + dynamic libraries. */ + bp_shlib_event, + + /* These breakpoints are used to implement the "catch load" command + on platforms whose dynamic linkers support such functionality. */ + bp_catch_load, + + /* These breakpoints are used to implement the "catch unload" command + on platforms whose dynamic linkers support such functionality. */ + bp_catch_unload, + + /* 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 + + + }; /* States of enablement of breakpoint. */ -enum enable { - disabled, /* The eventpoint is inactive, and cannot trigger. */ - enabled, /* The eventpoint is active, and can trigger. */ - shlib_disabled, /* The eventpoint's address is within an unloaded solib. - The eventpoint will be automatically enabled & reset - when that solib is loaded. */ - call_disabled /* The eventpoint has been disabled while a call into - the inferior is "in flight", because some eventpoints - interfere with the implementation of a call on some - targets. The eventpoint will be automatically enabled - & reset when the call "lands" (either completes, or - stops at another eventpoint). */ -}; +enum enable + { + disabled, /* The eventpoint is inactive, and cannot trigger. */ + enabled, /* The eventpoint is active, and can trigger. */ + shlib_disabled, /* The eventpoint's address is within an unloaded solib. + The eventpoint will be automatically enabled & reset + when that solib is loaded. */ + call_disabled /* The eventpoint has been disabled while a call into + the inferior is "in flight", because some eventpoints + interfere with the implementation of a call on some + targets. The eventpoint will be automatically enabled + & reset when the call "lands" (either completes, or + stops at another eventpoint). */ + }; /* Disposition of breakpoint. Ie: what to do after hitting it. */ -enum bpdisp { - del, /* Delete it */ - del_at_next_stop, /* Delete at next stop, whether hit or not */ - disable, /* Disable it */ - donttouch /* Leave it alone */ -}; +enum bpdisp + { + del, /* Delete it */ + del_at_next_stop, /* Delete at next stop, whether hit or not */ + disable, /* Disable it */ + donttouch /* Leave it alone */ + }; /* 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 @@ -151,118 +155,118 @@ enum bpdisp { /* This is for a breakpoint or a watchpoint. */ struct breakpoint -{ - struct breakpoint *next; - /* Type of breakpoint. */ - enum bptype type; - /* Zero means disabled; remember the info but don't break here. */ - enum enable enable; - /* What to do with this breakpoint after we hit it. */ - enum bpdisp disposition; - /* Number assigned to distinguish breakpoints. */ - int number; - - /* Address to break at, or NULL if not a breakpoint. */ - CORE_ADDR address; - - /* Line number of this address. Only matters if address is - non-NULL. */ - - int line_number; - - /* Source file name of this address. Only matters if address is - non-NULL. */ - - char *source_file; - - /* Non-zero means a silent breakpoint (don't print frame info - if we stop here). */ - unsigned char silent; - /* 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. Only matters if address - is non-NULL. */ - char inserted; - /* Nonzero if this is not the first breakpoint in the list - for the given address. Only matters if address is non-NULL. */ - 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. */ - CORE_ADDR frame; - /* Conditional. Break only if this expression's value is nonzero. */ - struct expression *cond; - - /* String we used to set the breakpoint (malloc'd). Only matters if - address is non-NULL. */ - char *addr_string; - /* Language we used to set the breakpoint. */ - enum language language; - /* Input radix we used to set the breakpoint. */ - int input_radix; - /* String form of the breakpoint condition (malloc'd), or NULL if there - is no condition. */ - char *cond_string; - /* String form of exp (malloc'd), or NULL if none. */ - char *exp_string; - - /* The expression we are watching, or NULL if not a watchpoint. */ - struct expression *exp; - /* 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_ptr val; - - /* Holds the value chain for a hardware watchpoint expression. */ - value_ptr val_chain; - - /* Holds the address of the related watchpoint_scope breakpoint - when using watchpoints on local variables (might the concept - of a related breakpoint be useful elsewhere, if not just call - it the watchpoint_scope breakpoint or something like that. FIXME). */ - struct breakpoint *related_breakpoint; - - /* Holds the frame address which identifies the frame this watchpoint - should be evaluated in, or NULL if the watchpoint should be evaluated - on the outermost frame. */ - CORE_ADDR watchpoint_frame; - - /* Thread number for thread-specific breakpoint, or -1 if don't care */ - int thread; - - /* 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 vaid 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 vaid immediately after this catchpoint has triggered. */ - int forked_inferior_pid; - - /* Filename of a program whose exec triggered this catchpoint. This - field is only vaid immediately after this catchpoint has triggered. */ - char * exec_pathname; - - asection *section; -}; + { + struct breakpoint *next; + /* Type of breakpoint. */ + enum bptype type; + /* Zero means disabled; remember the info but don't break here. */ + enum enable enable; + /* What to do with this breakpoint after we hit it. */ + enum bpdisp disposition; + /* Number assigned to distinguish breakpoints. */ + int number; + + /* Address to break at, or NULL if not a breakpoint. */ + CORE_ADDR address; + + /* Line number of this address. Only matters if address is + non-NULL. */ + + int line_number; + + /* Source file name of this address. Only matters if address is + non-NULL. */ + + char *source_file; + + /* Non-zero means a silent breakpoint (don't print frame info + if we stop here). */ + unsigned char silent; + /* 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. Only matters if address + is non-NULL. */ + char inserted; + /* Nonzero if this is not the first breakpoint in the list + for the given address. Only matters if address is non-NULL. */ + 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. */ + CORE_ADDR frame; + /* Conditional. Break only if this expression's value is nonzero. */ + struct expression *cond; + + /* String we used to set the breakpoint (malloc'd). Only matters if + address is non-NULL. */ + char *addr_string; + /* Language we used to set the breakpoint. */ + enum language language; + /* Input radix we used to set the breakpoint. */ + int input_radix; + /* String form of the breakpoint condition (malloc'd), or NULL if there + is no condition. */ + char *cond_string; + /* String form of exp (malloc'd), or NULL if none. */ + char *exp_string; + + /* The expression we are watching, or NULL if not a watchpoint. */ + struct expression *exp; + /* 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_ptr val; + + /* Holds the value chain for a hardware watchpoint expression. */ + value_ptr val_chain; + + /* Holds the address of the related watchpoint_scope breakpoint + when using watchpoints on local variables (might the concept + of a related breakpoint be useful elsewhere, if not just call + it the watchpoint_scope breakpoint or something like that. FIXME). */ + struct breakpoint *related_breakpoint; + + /* Holds the frame address which identifies the frame this watchpoint + should be evaluated in, or NULL if the watchpoint should be evaluated + on the outermost frame. */ + CORE_ADDR watchpoint_frame; + + /* Thread number for thread-specific breakpoint, or -1 if don't care */ + int thread; + + /* 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 vaid 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 vaid immediately after this catchpoint has triggered. */ + int forked_inferior_pid; + + /* Filename of a program whose exec triggered this catchpoint. This + field is only vaid immediately after this catchpoint has triggered. */ + char *exec_pathname; + + asection *section; + }; /* The following stuff is an abstract data type "bpstat" ("breakpoint status"). This provides the ability to determine whether we have stopped at a @@ -284,71 +288,73 @@ extern bpstat bpstat_stop_status PARAMS ((CORE_ADDR *, int)); /* This bpstat_what stuff tells wait_for_inferior what to do with a breakpoint (a challenging task). */ -enum bpstat_what_main_action { - /* Perform various other tests; that is, this bpstat does not - say to perform any action (e.g. failed watchpoint and nothing - else). */ - BPSTAT_WHAT_KEEP_CHECKING, - - /* Rather than distinguish between noisy and silent stops here, it - might be cleaner to have bpstat_print make that decision (also - taking into account stop_print_frame and source_only). But the - implications are a bit scary (interaction with auto-displays, etc.), - so I won't try it. */ - - /* Stop silently. */ - BPSTAT_WHAT_STOP_SILENT, - - /* Stop and print. */ - BPSTAT_WHAT_STOP_NOISY, - - /* Remove breakpoints, single step once, then put them back in and - go back to what we were doing. It's possible that this should be - removed from the main_action and put into a separate field, to more - cleanly handle BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE. */ - BPSTAT_WHAT_SINGLE, - - /* Set longjmp_resume breakpoint, remove all other breakpoints, - and continue. The "remove all other breakpoints" part is required - if we are also stepping over another breakpoint as well as doing - the longjmp handling. */ - BPSTAT_WHAT_SET_LONGJMP_RESUME, - - /* Clear longjmp_resume breakpoint, then handle as - 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, - - /* This is just used to keep track of how many enums there are. */ - BPSTAT_WHAT_LAST -}; - -struct bpstat_what { - enum bpstat_what_main_action main_action; - - /* Did we hit a call dummy breakpoint? This only goes with a main_action - of BPSTAT_WHAT_STOP_SILENT or BPSTAT_WHAT_STOP_NOISY (the concept of - continuing from a call dummy without popping the frame is not a - useful one). */ - int call_dummy; -}; +enum bpstat_what_main_action + { + /* Perform various other tests; that is, this bpstat does not + say to perform any action (e.g. failed watchpoint and nothing + else). */ + BPSTAT_WHAT_KEEP_CHECKING, + + /* Rather than distinguish between noisy and silent stops here, it + might be cleaner to have bpstat_print make that decision (also + taking into account stop_print_frame and source_only). But the + implications are a bit scary (interaction with auto-displays, etc.), + so I won't try it. */ + + /* Stop silently. */ + BPSTAT_WHAT_STOP_SILENT, + + /* Stop and print. */ + BPSTAT_WHAT_STOP_NOISY, + + /* Remove breakpoints, single step once, then put them back in and + go back to what we were doing. It's possible that this should be + removed from the main_action and put into a separate field, to more + cleanly handle BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE. */ + BPSTAT_WHAT_SINGLE, + + /* Set longjmp_resume breakpoint, remove all other breakpoints, + and continue. The "remove all other breakpoints" part is required + if we are also stepping over another breakpoint as well as doing + the longjmp handling. */ + BPSTAT_WHAT_SET_LONGJMP_RESUME, + + /* Clear longjmp_resume breakpoint, then handle as + 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, + + /* This is just used to keep track of how many enums there are. */ + BPSTAT_WHAT_LAST + }; + +struct bpstat_what + { + enum bpstat_what_main_action main_action; + + /* Did we hit a call dummy breakpoint? This only goes with a main_action + of BPSTAT_WHAT_STOP_SILENT or BPSTAT_WHAT_STOP_NOISY (the concept of + continuing from a call dummy without popping the frame is not a + useful one). */ + int call_dummy; + }; /* Tell what to do about this bpstat. */ struct bpstat_what bpstat_what PARAMS ((bpstat)); @@ -364,9 +370,9 @@ bpstat bpstat_find_breakpoint PARAMS ((bpstat, struct breakpoint *)); step_resume breakpoint. See wait_for_inferior's use of this function. - */ + */ extern struct breakpoint * -bpstat_find_step_resume_breakpoint PARAMS ((bpstat)); + bpstat_find_step_resume_breakpoint PARAMS ((bpstat)); /* Nonzero if a signal that we got in wait() was due to circumstances explained by the BS. */ @@ -405,45 +411,45 @@ extern void bpstat_clear_actions PARAMS ((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 PARAMS ((bpstat, bpstat *)); - + /* Implementation: */ struct bpstats -{ - /* Linked list because there can be two breakpoints at the - same place, and a bpstat reflects the fact that both have been hit. */ - bpstat next; - /* Breakpoint that we are at. */ - struct breakpoint *breakpoint_at; - /* Commands left to be done. */ - struct command_line *commands; - /* Old value associated with a watchpoint. */ - value_ptr old_val; - - /* Nonzero if this breakpoint tells us to print the frame. */ - char print; - - /* Nonzero if this breakpoint tells us to stop. */ - char stop; - - /* Function called by bpstat_print to print stuff associated with - this element of the bpstat chain. Returns 0 or 1 just like - bpstat_print, or -1 if it can't deal with it. */ - int (*print_it) PARAMS((bpstat bs)); -}; + { + /* Linked list because there can be two breakpoints at the + same place, and a bpstat reflects the fact that both have been hit. */ + bpstat next; + /* Breakpoint that we are at. */ + struct breakpoint *breakpoint_at; + /* Commands left to be done. */ + struct command_line *commands; + /* Old value associated with a watchpoint. */ + value_ptr old_val; + + /* Nonzero if this breakpoint tells us to print the frame. */ + char print; + + /* Nonzero if this breakpoint tells us to stop. */ + char stop; + + /* Function called by bpstat_print to print stuff associated with + this element of the bpstat chain. Returns 0 or 1 just like + bpstat_print, or -1 if it can't deal with it. */ + int (*print_it) PARAMS ((bpstat bs)); + }; enum inf_context -{ - inf_starting, - inf_running, - inf_exited -}; - + { + inf_starting, + inf_running, + inf_exited + }; + /* Prototypes for breakpoint-related functions. */ -#ifdef __STDC__ /* Forward declarations for prototypes */ +#ifdef __STDC__ /* Forward declarations for prototypes */ struct frame_info; #endif @@ -500,16 +506,16 @@ extern int reattach_breakpoints PARAMS ((int)); This function causes the following: - - All eventpoints are marked "not inserted". - - All eventpoints with a symbolic address are reset such that - the symbolic address must be reevaluated before the eventpoints - can be reinserted. - - The solib breakpoints are explicitly removed from the breakpoint - list. - - A step-resume breakpoint, if any, is explicitly removed from the - breakpoint list. - - All eventpoints without a symbolic address are removed from the - breakpoint list. */ + - All eventpoints are marked "not inserted". + - All eventpoints with a symbolic address are reset such that + the symbolic address must be reevaluated before the eventpoints + can be reinserted. + - The solib breakpoints are explicitly removed from the breakpoint + list. + - A step-resume breakpoint, if any, is explicitly removed from the + breakpoint list. + - All eventpoints without a symbolic address are removed from the + breakpoint list. */ extern void update_breakpoints_after_exec PARAMS ((void)); /* This function can be used to physically remove hardware breakpoints @@ -518,11 +524,11 @@ extern void update_breakpoints_after_exec PARAMS ((void)); those targets which support following the processes of a fork() or vfork() system call, when one of the resulting two processes is to be detached and allowed to run free. - + It is an error to use this function on the process whose id is inferior_pid. */ extern int detach_breakpoints PARAMS ((int)); - + extern void enable_longjmp_breakpoint PARAMS ((void)); extern void disable_longjmp_breakpoint PARAMS ((void)); @@ -556,7 +562,7 @@ disable_watchpoints_before_interactive_call_start PARAMS ((void)); extern void enable_watchpoints_after_interactive_call_stop PARAMS ((void)); - + extern void clear_breakpoint_hit_counts PARAMS ((void)); /* The following are for displays, which aren't really breakpoints, but @@ -583,23 +589,23 @@ extern void disable_breakpoints_in_shlibs PARAMS ((int silent)); extern void re_enable_breakpoints_in_shlibs PARAMS ((void)); extern void create_solib_load_event_breakpoint PARAMS ((char *, int, char *, char *)); - + extern void create_solib_unload_event_breakpoint PARAMS ((char *, int, char *, char *)); - + extern void create_fork_event_catchpoint PARAMS ((int, char *)); - + extern void create_vfork_event_catchpoint PARAMS ((int, char *)); extern void create_exec_event_catchpoint PARAMS ((int, char *)); - + /* This function returns TRUE if ep is a catchpoint. */ extern int ep_is_catchpoint PARAMS ((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 PARAMS ((struct breakpoint *)); - + extern struct breakpoint *set_breakpoint_sal PARAMS ((struct symtab_and_line)); #endif /* !defined (BREAKPOINT_H) */ |