X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Finferior.h;h=c237e6e9ea6b1b0ccfd1c50433f9e8ee5dac6aa1;hb=f3b1572e1aedb92f0d7672c384de4bbc70b59757;hp=43f902238ff72133730aa606dbfd8b1908b541d7;hpb=181e7f9393edb01de72d25e208a6ef4f069fb36f;p=binutils-gdb.git diff --git a/gdb/inferior.h b/gdb/inferior.h index 43f902238ff..c237e6e9ea6 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. @@ -40,27 +40,37 @@ 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 +99,9 @@ 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 +111,6 @@ 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 +126,6 @@ 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; @@ -206,9 +207,9 @@ 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); @@ -278,14 +279,13 @@ 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. */ @@ -339,13 +339,18 @@ enum stop_kind STOP_QUIETLY_NO_SIGSTOP }; -/* 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). */ @@ -358,13 +363,6 @@ 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 @@ -423,6 +421,11 @@ struct inferior 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; + /* Private data used by the target vector implementation. */ struct private_inferior *private; }; @@ -466,7 +469,7 @@ 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);