X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Finferior.h;h=f1b5d173a7de2b9d9e8f71692fec9c819def086d;hb=481cb1bb4502e6bbe053355501c7a90c8ea4a223;hp=51bee346649f565f323343092db60f5c1fe59734;hpb=82f7388440b4dc733616a6a85e9dfd290089e508;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/inferior.h b/gdb/inferior.h index 51bee34664..f1b5d173a7 100644 --- a/gdb/inferior.h +++ b/gdb/inferior.h @@ -2,7 +2,7 @@ Where it is, why it stopped, and how to step it. Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, - 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008 + 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of GDB. @@ -30,6 +30,7 @@ struct type; struct gdbarch; struct regcache; struct ui_out; +struct terminal_info; /* For bpstat. */ #include "breakpoint.h" @@ -40,27 +41,37 @@ struct ui_out; /* For struct frame_id. */ #include "frame.h" -/* Structure in which to save the status of the inferior. Create/Save - through "save_inferior_status", restore through - "restore_inferior_status". +/* Two structures are used to record inferior state. - This pair of routines should be called around any transfer of - control to the inferior which you don't want showing up in your - control variables. */ + inferior_thread_state contains state about the program itself like its + registers and any signal it received when it last stopped. + This state must be restored regardless of how the inferior function call + ends (either successfully, or after it hits a breakpoint or signal) + if the program is to properly continue where it left off. + inferior_status contains state regarding gdb's control of the inferior + itself like stepping control. It also contains session state like the + user's currently selected frame. + + Call these routines around hand called functions, including function calls + in conditional breakpoints for example. */ + +struct inferior_thread_state; struct inferior_status; -extern struct inferior_status *save_inferior_status (int); +extern struct inferior_thread_state *save_inferior_thread_state (void); +extern struct inferior_status *save_inferior_status (void); +extern void restore_inferior_thread_state (struct inferior_thread_state *); extern void restore_inferior_status (struct inferior_status *); +extern struct cleanup *make_cleanup_restore_inferior_thread_state (struct inferior_thread_state *); extern struct cleanup *make_cleanup_restore_inferior_status (struct inferior_status *); +extern void discard_inferior_thread_state (struct inferior_thread_state *); extern void discard_inferior_status (struct inferior_status *); -extern void write_inferior_status_register (struct inferior_status - *inf_status, int regno, - LONGEST val); +extern struct regcache *get_inferior_thread_state_regcache (struct inferior_thread_state *); /* The -1 ptid, often used to indicate either an error condition or a "don't care" condition, i.e, "run all threads." */ @@ -89,6 +100,9 @@ long ptid_get_tid (ptid_t ptid); /* Compare two ptids to see if they are equal */ extern int ptid_equal (ptid_t p1, ptid_t p2); +/* Return true if PTID represents a process id. */ +extern int ptid_is_pid (ptid_t ptid); + /* Save value of inferior_ptid so that it may be restored by a later call to do_cleanups(). Returns the struct cleanup pointer needed for later doing the cleanup. */ @@ -98,10 +112,6 @@ extern void set_sigint_trap (void); extern void clear_sigint_trap (void); -extern void set_sigio_trap (void); - -extern void clear_sigio_trap (void); - /* Set/get file name for default use for standard in/out in the inferior. */ extern void set_inferior_io_terminal (const char *terminal_name); @@ -117,14 +127,6 @@ extern ptid_t inferior_ptid; redisplay the prompt until the execution is actually over. */ extern int sync_execution; -/* Some targets (stupidly) report more than one exec event per actual - call to an event() system call. If only the last such exec event - need actually be noticed and responded to by the debugger (i.e., - be reported to the user), then this is the number of "leading" - exec events which should be ignored. - */ -extern int inferior_ignoring_leading_exec_events; - /* Inferior environment. */ extern struct gdb_environ *inferior_environ; @@ -133,6 +135,8 @@ extern void clear_proceed_status (void); extern void proceed (CORE_ADDR, enum target_signal, int); +extern int sched_multi; + /* When set, stop the 'step' command if we enter a function which has no line number information. The normal behavior is that we step over such function. */ @@ -151,17 +155,17 @@ extern void terminal_save_ours (void); extern void terminal_ours (void); -extern CORE_ADDR read_pc (void); - -extern void write_pc (CORE_ADDR); - -extern CORE_ADDR unsigned_pointer_to_address (struct type *type, +extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch, + struct type *type, const gdb_byte *buf); -extern void unsigned_address_to_pointer (struct type *type, gdb_byte *buf, +extern void unsigned_address_to_pointer (struct gdbarch *gdbarch, + struct type *type, gdb_byte *buf, CORE_ADDR addr); -extern CORE_ADDR signed_pointer_to_address (struct type *type, +extern CORE_ADDR signed_pointer_to_address (struct gdbarch *gdbarch, + struct type *type, const gdb_byte *buf); -extern void address_to_signed_pointer (struct type *type, gdb_byte *buf, +extern void address_to_signed_pointer (struct gdbarch *gdbarch, + struct type *type, gdb_byte *buf, CORE_ADDR addr); extern void wait_for_inferior (int treat_exec_as_sigtrap); @@ -198,28 +202,16 @@ extern void terminal_init_inferior (void); extern void terminal_init_inferior_with_pgrp (int pgrp); -/* From procfs.c */ - -extern int proc_iterate_over_mappings (int (*)(int, CORE_ADDR)); - -extern ptid_t procfs_first_available (void); - /* From fork-child.c */ -extern void fork_inferior (char *, char *, char **, - void (*)(void), - void (*)(int), void (*)(void), char *); +extern int fork_inferior (char *, char *, char **, + void (*)(void), + void (*)(int), void (*)(void), char *); extern void startup_inferior (int); -extern char *construct_inferior_arguments (struct gdbarch *, int, char **); - -/* From inflow.c */ - -extern void new_tty_prefork (const char *); - -extern int gdb_has_a_terminal (void); +extern char *construct_inferior_arguments (int, char **); /* From infrun.c */ @@ -250,6 +242,8 @@ extern void error_is_running (void); /* Calls error_is_running if the current thread is running. */ extern void ensure_not_running (void); +void set_step_info (struct frame_info *frame, struct symtab_and_line sal); + /* From infcmd.c */ extern void tty_command (char *, int); @@ -278,14 +272,13 @@ extern void interrupt_target_command (char *args, int from_tty); extern void interrupt_target_1 (int all_threads); -/* Address at which inferior stopped. */ +extern void detach_command (char *, int); -extern CORE_ADDR stop_pc; +extern void notice_new_inferior (ptid_t, int, int); -/* Flag indicating that a command has proceeded the inferior past the - current breakpoint. */ +/* Address at which inferior stopped. */ -extern int breakpoint_proceeded; +extern CORE_ADDR stop_pc; /* Nonzero if stopped due to completion of a stack dummy routine. */ @@ -296,8 +289,9 @@ extern int stop_stack_dummy; extern int stopped_by_random_signal; -/* 1 means step over all subroutine calls. - -1 means step over calls to undebuggable functions. */ +/* STEP_OVER_ALL means step over all subroutine calls. + STEP_OVER_UNDEBUGGABLE means step over calls to undebuggable functions. + STEP_OVER_NONE means don't step over any subroutine calls. */ enum step_over_calls_kind { @@ -339,25 +333,23 @@ enum stop_kind STOP_QUIETLY_NO_SIGSTOP }; -extern enum stop_kind stop_soon; - -/* Nonzero if proceed is being used for a "finish" command or a similar - situation when stop_registers should be saved. */ +/* Reverse execution. */ +enum exec_direction_kind + { + EXEC_FORWARD, + EXEC_REVERSE, + EXEC_ERROR + }; -extern int proceed_to_finish; +extern enum exec_direction_kind execution_direction; -/* Save register contents here when about to pop a stack dummy frame, - if-and-only-if proceed_to_finish is set. +/* Save register contents here when executing a "finish" command or are + about to pop a stack dummy frame, if-and-only-if proceed_to_finish is set. Thus this contains the return value from the called function (assuming values are returned in a register). */ extern struct regcache *stop_registers; -/* Nonzero if the child process in inferior_ptid was attached rather - than forked. */ - -extern int attach_flag; - /* True if we are debugging displaced stepping. */ extern int debug_displaced; @@ -365,13 +357,6 @@ extern int debug_displaced; void displaced_step_dump_bytes (struct ui_file *file, const gdb_byte *buf, size_t len); - -/* When set, normal_stop will not call the normal_stop observer. */ -extern int suppress_stop_observer; - -/* When set, no calls to target_resumed observer will be made. */ -extern int suppress_resume_observer; - /* Possible values for gdbarch_call_dummy_location. */ #define ON_STACK 1 @@ -423,8 +408,37 @@ struct inferior the ptid_t.pid member of threads of this inferior. */ int pid; + /* See the definition of stop_kind above. */ + enum stop_kind stop_soon; + + /* Nonzero if this child process was attached rather than + forked. */ + int attach_flag; + + /* What is left to do for an execution command after any thread of + this inferior stops. For continuations associated with a + specific thread, see `struct thread_info'. */ + struct continuation *continuations; + + /* Terminal info and state managed by inflow.c. */ + struct terminal_info *terminal_info; + /* Private data used by the target vector implementation. */ struct private_inferior *private; + + /* We keep a count of the number of times the user has requested a + particular syscall to be tracked, and pass this information to the + target. This lets capable targets implement filtering directly. */ + + /* Number of times that "any" syscall is requested. */ + int any_syscall_count; + + /* Count of each system call. */ + VEC(int) *syscalls_counts; + + /* This counts all syscall catch requests, so we can readily determine + if any catching is necessary. */ + int total_syscalls_count; }; /* Create an empty inferior list, or empty the existing one. */ @@ -466,7 +480,7 @@ extern int in_inferior_list (int pid); /* Boolean test for an already-known inferior id (GDB's homegrown id, not the system's). */ -extern int valid_inferior_id (int num); +extern int valid_gdb_inferior_id (int num); /* Search function to lookup a inferior by target 'pid'. */ extern struct inferior *find_inferior_pid (int pid); @@ -494,6 +508,10 @@ extern void print_inferior (struct ui_out *uiout, int requested_inferior); /* Returns true if the inferior list is not empty. */ extern int have_inferiors (void); +/* Returns true if there are any live inferiors in the inferior list + (not cores, not executables, real live processes). */ +extern int have_live_inferiors (void); + /* Return a pointer to the current inferior. It is an error to call this if there is no current inferior. */ extern struct inferior *current_inferior (void);