/* Variables that describe the inferior process running under GDB:
Where it is, why it stopped, and how to step it.
- Copyright 1986, 1989, 1992, 1996, 1998 Free Software Foundation, Inc.
+
+ Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ 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,
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 <http://www.gnu.org/licenses/>. */
#if !defined (INFERIOR_H)
#define INFERIOR_H 1
+struct target_waitstatus;
+struct frame_info;
+struct ui_file;
+struct type;
+struct gdbarch;
+struct regcache;
+struct ui_out;
+struct terminal_info;
+
/* For bpstat. */
#include "breakpoint.h"
/* For enum target_signal. */
#include "target.h"
-/* Structure in which to save the status of the inferior. Create/Save
- through "save_inferior_status", restore through
- "restore_inferior_status".
-
- 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. */
-
-struct inferior_status;
-
-extern struct inferior_status *save_inferior_status PARAMS ((int));
-
-extern void restore_inferior_status PARAMS ((struct inferior_status *));
-
-extern void discard_inferior_status PARAMS ((struct inferior_status *));
+/* For struct frame_id. */
+#include "frame.h"
-extern void write_inferior_status_register PARAMS ((struct inferior_status * inf_status, int regno, LONGEST val));
+/* Two structures are used to record inferior state.
-/* This macro gives the number of registers actually in use by the
- inferior. This may be less than the total number of registers,
- perhaps depending on the actual CPU in use or program being run. */
+ 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.
-#ifndef ARCH_NUM_REGS
-#define ARCH_NUM_REGS NUM_REGS
-#endif
-
-extern void set_sigint_trap PARAMS ((void));
+ 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.
-extern void clear_sigint_trap PARAMS ((void));
+ Call these routines around hand called functions, including function calls
+ in conditional breakpoints for example. */
-extern void set_sigio_trap PARAMS ((void));
+struct inferior_thread_state;
+struct inferior_status;
-extern void clear_sigio_trap PARAMS ((void));
+extern struct inferior_thread_state *save_inferior_thread_state (void);
+extern struct inferior_status *save_inferior_status (void);
-/* File name for default use for standard in/out in the inferior. */
+extern void restore_inferior_thread_state (struct inferior_thread_state *);
+extern void restore_inferior_status (struct inferior_status *);
-extern char *inferior_io_terminal;
+extern struct cleanup *make_cleanup_restore_inferior_thread_state (struct inferior_thread_state *);
+extern struct cleanup *make_cleanup_restore_inferior_status (struct inferior_status *);
-/* Pid of our debugged inferior, or 0 if no inferior now. */
+extern void discard_inferior_thread_state (struct inferior_thread_state *);
+extern void discard_inferior_status (struct inferior_status *);
-extern int inferior_pid;
+extern struct regcache *get_inferior_thread_state_regcache (struct inferior_thread_state *);
-/* Is the inferior running right now, as a result of a 'run&',
- 'continue&' etc command? This is used in asycn gdb to determine
- whether a command that the user enters while the target is running
- is allowed or not. */
-extern int target_executing;
+/* The -1 ptid, often used to indicate either an error condition
+ or a "don't care" condition, i.e, "run all threads." */
+extern ptid_t minus_one_ptid;
-/* Are we simulating synchronous execution? This is used in async gdb
- to implement the 'run', 'continue' etc commands, which will not
- redisplay the prompt until the execution is actually over. */
-extern int sync_execution;
+/* The null or zero ptid, often used to indicate no process. */
+extern ptid_t null_ptid;
-/* This is only valid when inferior_pid is non-zero.
+/* Attempt to find and return an existing ptid with the given PID, LWP,
+ and TID components. If none exists, create a new one and return
+ that. */
+ptid_t ptid_build (int pid, long lwp, long tid);
- If this is 0, then exec events should be noticed and responded to
- by the debugger (i.e., be reported to the user).
+/* Find/Create a ptid from just a pid. */
+ptid_t pid_to_ptid (int pid);
- If this is > 0, then that many subsequent exec events should be
- ignored (i.e., not be reported to the user).
- */
-extern int inferior_ignoring_startup_exec_events;
+/* Fetch the pid (process id) component from a ptid. */
+int ptid_get_pid (ptid_t ptid);
-/* This is only valid when inferior_ignoring_startup_exec_events is
- zero.
+/* Fetch the lwp (lightweight process) component from a ptid. */
+long ptid_get_lwp (ptid_t ptid);
- 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;
+/* Fetch the tid (thread id) component from a ptid. */
+long ptid_get_tid (ptid_t ptid);
-/* Inferior environment. */
+/* Compare two ptids to see if they are equal */
+extern int ptid_equal (ptid_t p1, ptid_t p2);
-extern struct environ *inferior_environ;
+/* Return true if PTID represents a process id. */
+extern int ptid_is_pid (ptid_t ptid);
-/* Character array containing an image of the inferior programs'
- registers. */
+/* 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. */
+extern struct cleanup * save_inferior_ptid (void);
-extern char *registers;
+extern void set_sigint_trap (void);
-/* Character array containing the current state of each register
- (unavailable<0, valid=0, invalid>0). */
+extern void clear_sigint_trap (void);
-extern signed char *register_valid;
+/* Set/get file name for default use for standard in/out in the inferior. */
-extern void clear_proceed_status PARAMS ((void));
+extern void set_inferior_io_terminal (const char *terminal_name);
+extern const char *get_inferior_io_terminal (void);
-extern void proceed PARAMS ((CORE_ADDR, enum target_signal, int));
+/* Collected pid, tid, etc. of the debugged inferior. When there's
+ no inferior, PIDGET (inferior_ptid) will be 0. */
-extern void kill_inferior PARAMS ((void));
+extern ptid_t inferior_ptid;
-extern void generic_mourn_inferior PARAMS ((void));
-
-extern void terminal_ours PARAMS ((void));
-
-extern int run_stack_dummy PARAMS ((CORE_ADDR, char *));
-
-extern CORE_ADDR read_pc PARAMS ((void));
-
-extern CORE_ADDR read_pc_pid PARAMS ((int));
-
-extern CORE_ADDR generic_target_read_pc PARAMS ((int));
+/* Are we simulating synchronous execution? This is used in async gdb
+ to implement the 'run', 'continue' etc commands, which will not
+ redisplay the prompt until the execution is actually over. */
+extern int sync_execution;
-extern void write_pc PARAMS ((CORE_ADDR));
+/* Inferior environment. */
-extern void write_pc_pid PARAMS ((CORE_ADDR, int));
+extern struct gdb_environ *inferior_environ;
-extern void generic_target_write_pc PARAMS ((CORE_ADDR, int));
+extern void clear_proceed_status (void);
-extern CORE_ADDR read_sp PARAMS ((void));
+extern void proceed (CORE_ADDR, enum target_signal, int);
-extern CORE_ADDR generic_target_read_sp PARAMS ((void));
+extern int sched_multi;
-extern void write_sp PARAMS ((CORE_ADDR));
+/* 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. */
+extern int step_stop_if_no_debug;
-extern void generic_target_write_sp PARAMS ((CORE_ADDR));
+/* If set, the inferior should be controlled in non-stop mode. In
+ this mode, each thread is controlled independently. Execution
+ commands apply only to the the selected thread by default, and stop
+ events stop only the thread that had the event -- the other threads
+ are kept running freely. */
+extern int non_stop;
-extern CORE_ADDR read_fp PARAMS ((void));
+extern void generic_mourn_inferior (void);
-extern CORE_ADDR generic_target_read_fp PARAMS ((void));
+extern void terminal_save_ours (void);
-extern void write_fp PARAMS ((CORE_ADDR));
+extern void terminal_ours (void);
-extern void generic_target_write_fp PARAMS ((CORE_ADDR));
+extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch,
+ struct type *type,
+ const 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 gdbarch *gdbarch,
+ struct type *type,
+ const 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 PARAMS ((void));
+extern void wait_for_inferior (int treat_exec_as_sigtrap);
-extern void fetch_inferior_event PARAMS ((void *));
+extern void fetch_inferior_event (void *);
-extern void init_wait_for_inferior PARAMS ((void));
+extern void init_wait_for_inferior (void);
-extern void close_exec_file PARAMS ((void));
+extern void close_exec_file (void);
-extern void reopen_exec_file PARAMS ((void));
+extern void reopen_exec_file (void);
/* The `resume' routine should only be called in special circumstances.
Normally, use `proceed', which handles a lot of bookkeeping. */
-extern void resume PARAMS ((int, enum target_signal));
+extern void resume (int, enum target_signal);
/* From misc files */
-extern void store_inferior_registers PARAMS ((int));
-
-extern void fetch_inferior_registers PARAMS ((int));
-
-extern void solib_create_inferior_hook PARAMS ((void));
+extern void default_print_registers_info (struct gdbarch *gdbarch,
+ struct ui_file *file,
+ struct frame_info *frame,
+ int regnum, int all);
-extern void child_terminal_info PARAMS ((char *, int));
+extern void child_terminal_info (char *, int);
-extern void term_info PARAMS ((char *, int));
+extern void term_info (char *, int);
-extern void terminal_ours_for_output PARAMS ((void));
+extern void terminal_ours_for_output (void);
-extern void terminal_inferior PARAMS ((void));
+extern void terminal_inferior (void);
-extern void terminal_init_inferior PARAMS ((void));
+extern void terminal_init_inferior (void);
-extern void terminal_init_inferior_with_pgrp PARAMS ((int pgrp));
+extern void terminal_init_inferior_with_pgrp (int pgrp);
-/* From infptrace.c or infttrace.c */
+/* From fork-child.c */
-extern int attach PARAMS ((int));
+extern int fork_inferior (char *, char *, char **,
+ void (*)(void),
+ void (*)(int), void (*)(void), char *);
-#if !defined(REQUIRE_ATTACH)
-#define REQUIRE_ATTACH attach
-#endif
-#if !defined(REQUIRE_DETACH)
-#define REQUIRE_DETACH(pid,siggnal) detach (siggnal)
-#endif
+extern void startup_inferior (int);
-extern void detach PARAMS ((int));
+extern char *construct_inferior_arguments (int, char **);
-/* PTRACE method of waiting for inferior process. */
-int ptrace_wait PARAMS ((int, int *));
+/* From infrun.c */
-extern void child_resume PARAMS ((int, int, enum target_signal));
+extern void start_remote (int from_tty);
-#ifndef PTRACE_ARG3_TYPE
-#define PTRACE_ARG3_TYPE int /* Correct definition for most systems. */
-#endif
+extern void normal_stop (void);
-extern int call_ptrace PARAMS ((int, int, PTRACE_ARG3_TYPE, int));
+extern int signal_stop_state (int);
-extern void pre_fork_inferior PARAMS ((void));
+extern int signal_print_state (int);
-/* From procfs.c */
+extern int signal_pass_state (int);
-extern int proc_iterate_over_mappings PARAMS ((int (*)(int, CORE_ADDR)));
+extern int signal_stop_update (int, int);
-extern int procfs_first_available PARAMS ((void));
+extern int signal_print_update (int, int);
-/* From fork-child.c */
+extern int signal_pass_update (int, int);
-extern void fork_inferior PARAMS ((char *, char *, char **,
- void (*)(void),
- void (*)(int),
- void (*)(void),
- char *));
+extern void get_last_target_status(ptid_t *ptid,
+ struct target_waitstatus *status);
+extern void follow_inferior_reset_breakpoints (void);
-extern void
-clone_and_follow_inferior PARAMS ((int, int *));
+/* Throw an error indicating the current thread is running. */
+extern void error_is_running (void);
-extern void startup_inferior PARAMS ((int));
+/* Calls error_is_running if the current thread is running. */
+extern void ensure_not_running (void);
-/* From inflow.c */
+void set_step_info (struct frame_info *frame, struct symtab_and_line sal);
-extern void new_tty_prefork PARAMS ((char *));
+/* From infcmd.c */
-extern int gdb_has_a_terminal PARAMS ((void));
+extern void tty_command (char *, int);
-/* From infrun.c */
+extern void post_create_inferior (struct target_ops *, int);
-extern void start_remote PARAMS ((void));
+extern void attach_command (char *, int);
-extern void normal_stop PARAMS ((void));
+extern char *get_inferior_args (void);
-extern int signal_stop_state PARAMS ((int));
+extern char *set_inferior_args (char *);
-extern int signal_print_state PARAMS ((int));
+extern void set_inferior_args_vector (int, char **);
-extern int signal_pass_state PARAMS ((int));
+extern void registers_info (char *, int);
-extern int signal_stop_update PARAMS ((int, int));
+extern void nexti_command (char *, int);
-extern int signal_print_update PARAMS ((int, int));
+extern void stepi_command (char *, int);
-extern int signal_pass_update PARAMS ((int, int));
+extern void continue_1 (int all_threads);
-/* From infcmd.c */
+extern void continue_command (char *, int);
-extern void tty_command PARAMS ((char *, int));
+extern void interrupt_target_command (char *args, int from_tty);
-extern void attach_command PARAMS ((char *, int));
+extern void interrupt_target_1 (int all_threads);
-/* Last signal that the inferior received (why it stopped). */
+extern void detach_command (char *, int);
-extern enum target_signal stop_signal;
+extern void notice_new_inferior (ptid_t, int, int);
/* Address at which inferior stopped. */
extern CORE_ADDR stop_pc;
-/* Chain containing status of breakpoint(s) that we have stopped at. */
-
-extern bpstat stop_bpstat;
-
-/* Flag indicating that a command has proceeded the inferior past the
- current breakpoint. */
-
-extern int breakpoint_proceeded;
-
-/* Nonzero if stopped due to a step command. */
-
-extern int stop_step;
-
/* Nonzero if stopped due to completion of a stack dummy routine. */
extern int stop_stack_dummy;
extern int stopped_by_random_signal;
-/* Range to single step within.
- If this is nonzero, respond to a single-step signal
- by continuing to step if the pc is in this range.
+/* 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
+ {
+ STEP_OVER_NONE,
+ STEP_OVER_ALL,
+ STEP_OVER_UNDEBUGGABLE
+ };
+
+/* Anything but NO_STOP_QUIETLY means we expect a trap and the caller
+ will handle it themselves. STOP_QUIETLY is used when running in
+ the shell before the child program has been exec'd and when running
+ through shared library loading. STOP_QUIETLY_REMOTE is used when
+ setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP
+ except that there is no need to hide a signal. */
+
+/* It is also used after attach, due to attaching to a process. This
+ is a bit trickier. When doing an attach, the kernel stops the
+ debuggee with a SIGSTOP. On newer GNU/Linux kernels (>= 2.5.61)
+ the handling of SIGSTOP for a ptraced process has changed. Earlier
+ versions of the kernel would ignore these SIGSTOPs, while now
+ SIGSTOP is treated like any other signal, i.e. it is not muffled.
+
+ If the gdb user does a 'continue' after the 'attach', gdb passes
+ the global variable stop_signal (which stores the signal from the
+ attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is
+ problematic, because the kernel doesn't ignore such SIGSTOP
+ now. I.e. it is reported back to gdb, which in turn presents it
+ back to the user.
+
+ To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows
+ gdb to clear the value of stop_signal after the attach, so that it
+ is not passed back down to the kernel. */
+
+enum stop_kind
+ {
+ NO_STOP_QUIETLY = 0,
+ STOP_QUIETLY,
+ STOP_QUIETLY_REMOTE,
+ STOP_QUIETLY_NO_SIGSTOP
+ };
+
+/* Reverse execution. */
+enum exec_direction_kind
+ {
+ EXEC_FORWARD,
+ EXEC_REVERSE,
+ EXEC_ERROR
+ };
+
+extern enum exec_direction_kind execution_direction;
+
+/* 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). */
- If step_range_start and step_range_end are both 1, it means to step for
- a single instruction (FIXME: it might clean up wait_for_inferior in a
- minor way if this were changed to the address of the instruction and
- that address plus one. But maybe not.). */
+extern struct regcache *stop_registers;
-extern CORE_ADDR step_range_start; /* Inclusive */
-extern CORE_ADDR step_range_end; /* Exclusive */
+/* True if we are debugging displaced stepping. */
+extern int debug_displaced;
-/* Stack frame address as of when stepping command was issued.
- This is how we know when we step into a subroutine call,
- and how to set the frame for the breakpoint used to step out. */
+/* Dump LEN bytes at BUF in hex to FILE, followed by a newline. */
+void displaced_step_dump_bytes (struct ui_file *file,
+ const gdb_byte *buf, size_t len);
-extern CORE_ADDR step_frame_address;
+\f
+/* Possible values for gdbarch_call_dummy_location. */
+#define ON_STACK 1
+#define AT_ENTRY_POINT 4
+#define AT_SYMBOL 5
-/* Our notion of the current stack pointer. */
+/* If STARTUP_WITH_SHELL is set, GDB's "run"
+ will attempts to start up the debugee under a shell.
+ This is in order for argument-expansion to occur. E.g.,
+ (gdb) run *
+ The "*" gets expanded by the shell into a list of files.
+ While this is a nice feature, it turns out to interact badly
+ with some of the catch-fork/catch-exec features we have added.
+ In particular, if the shell does any fork/exec's before
+ the exec of the target program, that can confuse GDB.
+ To disable this feature, set STARTUP_WITH_SHELL to 0.
+ To enable this feature, set STARTUP_WITH_SHELL to 1.
+ The catch-exec traps expected during start-up will
+ be 1 if target is not started up with a shell, 2 if it is.
+ - RT
+ If you disable this, you need to decrement
+ START_INFERIOR_TRAPS_EXPECTED in tm.h. */
+#define STARTUP_WITH_SHELL 1
+#if !defined(START_INFERIOR_TRAPS_EXPECTED)
+#define START_INFERIOR_TRAPS_EXPECTED 2
+#endif
-extern CORE_ADDR step_sp;
+struct private_inferior;
-/* 1 means step over all subroutine calls.
- -1 means step over calls to undebuggable functions. */
+/* GDB represents the state of each program execution with an object
+ called an inferior. An inferior typically corresponds to a process
+ but is more general and applies also to targets that do not have a
+ notion of processes. Each run of an executable creates a new
+ inferior, as does each attachment to an existing process.
+ Inferiors have unique internal identifiers that are different from
+ target process ids. Each inferior may in turn have multiple
+ threads running in it. */
-extern int step_over_calls;
+struct inferior
+{
+ /* Pointer to next inferior in singly-linked list of inferiors. */
+ struct inferior *next;
-/* If stepping, nonzero means step count is > 1
- so don't print frame next time inferior stops
- if it stops due to stepping. */
+ /* Convenient handle (GDB inferior id). Unique across all
+ inferiors. */
+ int num;
-extern int step_multi;
+ /* Actual target inferior id, usually, a process id. This matches
+ the ptid_t.pid member of threads of this inferior. */
+ int pid;
-/* Nonzero means expecting a trap and caller will handle it themselves.
- It is used after attach, due to attaching to a process;
- when running in the shell before the child program has been exec'd;
- and when running some kinds of remote stuff (FIXME?). */
+ /* See the definition of stop_kind above. */
+ enum stop_kind stop_soon;
-extern int stop_soon_quietly;
+ /* Nonzero if this child process was attached rather than
+ forked. */
+ int attach_flag;
-/* Nonzero if proceed is being used for a "finish" command or a similar
- situation when stop_registers should be saved. */
+ /* 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;
-extern int proceed_to_finish;
+ /* Terminal info and state managed by inflow.c. */
+ struct terminal_info *terminal_info;
-/* Save register contents here when 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). */
+ /* Private data used by the target vector implementation. */
+ struct private_inferior *private;
+};
-extern char *stop_registers;
+/* Create an empty inferior list, or empty the existing one. */
+extern void init_inferior_list (void);
-/* Nonzero if the child process in inferior_pid was attached rather
- than forked. */
+/* Add an inferior to the inferior list, print a message that a new
+ inferior is found, and return the pointer to the new inferior.
+ Caller may use this pointer to initialize the private inferior
+ data. */
+extern struct inferior *add_inferior (int pid);
-extern int attach_flag;
-\f
-/* Sigtramp is a routine that the kernel calls (which then calls the
- signal handler). On most machines it is a library routine that
- is linked into the executable.
-
- This macro, given a program counter value and the name of the
- function in which that PC resides (which can be null if the
- name is not known), returns nonzero if the PC and name show
- that we are in sigtramp.
-
- On most machines just see if the name is sigtramp (and if we have
- no name, assume we are not in sigtramp). */
-#if !defined (IN_SIGTRAMP)
-#if defined (SIGTRAMP_START)
-#define IN_SIGTRAMP(pc, name) \
- ((pc) >= SIGTRAMP_START(pc) \
- && (pc) < SIGTRAMP_END(pc) \
- )
-#else
-#define IN_SIGTRAMP(pc, name) \
- (name && STREQ ("_sigtramp", name))
-#endif
-#endif
-\f
-/* Possible values for CALL_DUMMY_LOCATION. */
-#define ON_STACK 1
-#define BEFORE_TEXT_END 2
-#define AFTER_TEXT_END 3
-#define AT_ENTRY_POINT 4
+/* Same as add_inferior, but don't print new inferior notifications to
+ the CLI. */
+extern struct inferior *add_inferior_silent (int pid);
-#if !defined (USE_GENERIC_DUMMY_FRAMES)
-#define USE_GENERIC_DUMMY_FRAMES 0
-#endif
+/* Delete an existing inferior list entry, due to inferior exit. */
+extern void delete_inferior (int pid);
-#if !defined (CALL_DUMMY_LOCATION)
-#define CALL_DUMMY_LOCATION ON_STACK
-#endif /* No CALL_DUMMY_LOCATION. */
+/* Same as delete_inferior, but don't print new inferior notifications
+ to the CLI. */
+extern void delete_inferior_silent (int pid);
-#if !defined (CALL_DUMMY_ADDRESS)
-#define CALL_DUMMY_ADDRESS() (internal_error ("CALL_DUMMY_ADDRESS"), 0)
-#endif
-#if !defined (CALL_DUMMY_START_OFFSET)
-#define CALL_DUMMY_START_OFFSET (internal_error ("CALL_DUMMY_START_OFFSET"), 0)
-#endif
-#if !defined (CALL_DUMMY_BREAKPOINT_OFFSET)
-#define CALL_DUMMY_BREAKPOINT_OFFSET_P (0)
-#define CALL_DUMMY_BREAKPOINT_OFFSET (internal_error ("CALL_DUMMY_BREAKPOINT_OFFSET"), 0)
-#endif
-#if !defined CALL_DUMMY_BREAKPOINT_OFFSET_P
-#define CALL_DUMMY_BREAKPOINT_OFFSET_P (1)
-#endif
-#if !defined (CALL_DUMMY_LENGTH)
-#define CALL_DUMMY_LENGTH (internal_error ("CALL_DUMMY_LENGTH"), 0)
-#endif
+/* Delete an existing inferior list entry, due to inferior detaching. */
+extern void detach_inferior (int pid);
-#if defined (CALL_DUMMY_STACK_ADJUST)
-#if !defined (CALL_DUMMY_STACK_ADJUST_P)
-#define CALL_DUMMY_STACK_ADJUST_P (1)
-#endif
-#endif
-#if !defined (CALL_DUMMY_STACK_ADJUST)
-#define CALL_DUMMY_STACK_ADJUST (internal_error ("CALL_DUMMY_STACK_ADJUST"), 0)
-#endif
-#if !defined (CALL_DUMMY_STACK_ADJUST_P)
-#define CALL_DUMMY_STACK_ADJUST_P (0)
-#endif
+/* Get rid of all inferiors. */
+extern void discard_all_inferiors (void);
-#if !defined (CALL_DUMMY_P)
-#if defined (CALL_DUMMY)
-#define CALL_DUMMY_P 1
-#else
-#define CALL_DUMMY_P 0
-#endif
-#endif
+/* Translate the integer inferior id (GDB's homegrown id, not the system's)
+ into a "pid" (which may be overloaded with extra inferior information). */
+extern int gdb_inferior_id_to_pid (int);
-#if !defined (CALL_DUMMY_WORDS)
-#if defined (CALL_DUMMY)
-extern LONGEST call_dummy_words[];
-#define CALL_DUMMY_WORDS (call_dummy_words)
-#else
-#define CALL_DUMMY_WORDS (internal_error ("CALL_DUMMY_WORDS"), (void*) 0)
-#endif
-#endif
+/* Translate a target 'pid' into the integer inferior id (GDB's
+ homegrown id, not the system's). */
+extern int pid_to_gdb_inferior_id (int pid);
-#if !defined (SIZEOF_CALL_DUMMY_WORDS)
-#if defined (CALL_DUMMY)
-extern int sizeof_call_dummy_words;
-#define SIZEOF_CALL_DUMMY_WORDS (sizeof_call_dummy_words)
-#else
-#define SIZEOF_CALL_DUMMY_WORDS (internal_error ("SIZEOF_CALL_DUMMY_WORDS"), 0)
-#endif
-#endif
+/* Boolean test for an already-known pid. */
+extern int in_inferior_list (int pid);
-#if !defined PUSH_DUMMY_FRAME
-#define PUSH_DUMMY_FRAME (internal_error ("PUSH_DUMMY_FRAME"), 0)
-#endif
+/* Boolean test for an already-known inferior id (GDB's homegrown id,
+ not the system's). */
+extern int valid_gdb_inferior_id (int num);
-#if !defined FIX_CALL_DUMMY
-#define FIX_CALL_DUMMY(a1,a2,a3,a4,a5,a6,a7) (internal_error ("FIX_CALL_DUMMY"), 0)
-#endif
+/* Search function to lookup a inferior by target 'pid'. */
+extern struct inferior *find_inferior_pid (int pid);
-#if !defined STORE_STRUCT_RETURN
-#define STORE_STRUCT_RETURN(a1,a2) (internal_error ("STORE_STRUCT_RETURN"), 0)
-#endif
+/* Inferior iterator function.
+ Calls a callback function once for each inferior, so long as the
+ callback function returns false. If the callback function returns
+ true, the iteration will end and the current inferior will be
+ returned. This can be useful for implementing a search for a
+ inferior with arbitrary attributes, or for applying some operation
+ to every inferior.
-/* Are we in a call dummy? */
+ It is safe to delete the iterated inferior from the callback. */
+extern struct inferior *iterate_over_inferiors (int (*) (struct inferior *,
+ void *),
+ void *);
-extern int pc_in_call_dummy_before_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
-#if !GDB_MULTI_ARCH
-#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == BEFORE_TEXT_END
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_before_text_end (pc, sp, frame_address)
-#endif /* Before text_end. */
-#endif
+/* Prints the list of inferiors and their details on UIOUT.
-extern int pc_in_call_dummy_after_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
-#if !GDB_MULTI_ARCH
-#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AFTER_TEXT_END
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_after_text_end (pc, sp, frame_address)
-#endif
-#endif
+ If REQUESTED_INFERIOR is not -1, it's the GDB id of the inferior
+ that should be printed. Otherwise, all inferiors are printed. */
+extern void print_inferior (struct ui_out *uiout, int requested_inferior);
-extern int pc_in_call_dummy_on_stack PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
-#if !GDB_MULTI_ARCH
-#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == ON_STACK
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_on_stack (pc, sp, frame_address)
-#endif
-#endif
+/* Returns true if the inferior list is not empty. */
+extern int have_inferiors (void);
-extern int pc_in_call_dummy_at_entry_point PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
-#if !GDB_MULTI_ARCH
-#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AT_ENTRY_POINT
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_at_entry_point (pc, sp, frame_address)
-#endif
-#endif
+/* 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);
-/* It's often not enough for our clients to know whether the PC is merely
- somewhere within the call dummy. They may need to know whether the
- call dummy has actually completed. (For example, wait_for_inferior
- wants to know when it should truly stop because the call dummy has
- completed. If we're single-stepping because of slow watchpoints,
- then we may find ourselves stopped at the entry of the call dummy,
- and want to continue stepping until we reach the end.)
-
- Note that this macro is intended for targets (like HP-UX) which
- require more than a single breakpoint in their call dummies, and
- therefore cannot use the CALL_DUMMY_BREAKPOINT_OFFSET mechanism.
-
- If a target does define CALL_DUMMY_BREAKPOINT_OFFSET, then this
- default implementation of CALL_DUMMY_HAS_COMPLETED is sufficient.
- Else, a target may wish to supply an implementation that works in
- the presense of multiple breakpoints in its call dummy.
- */
-#if !defined(CALL_DUMMY_HAS_COMPLETED)
-#define CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \
- PC_IN_CALL_DUMMY((pc), (sp), (frame_address))
-#endif
+/* 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);
-/* If STARTUP_WITH_SHELL is set, GDB's "run"
- will attempts to start up the debugee under a shell.
- This is in order for argument-expansion to occur. E.g.,
- (gdb) run *
- The "*" gets expanded by the shell into a list of files.
- While this is a nice feature, it turns out to interact badly
- with some of the catch-fork/catch-exec features we have added.
- In particular, if the shell does any fork/exec's before
- the exec of the target program, that can confuse GDB.
- To disable this feature, set STARTUP_WITH_SHELL to 0.
- To enable this feature, set STARTUP_WITH_SHELL to 1.
- The catch-exec traps expected during start-up will
- be 1 if target is not started up with a shell, 2 if it is.
- - RT
- If you disable this, you need to decrement
- START_INFERIOR_TRAPS_EXPECTED in tm.h. */
-#define STARTUP_WITH_SHELL 1
-#if !defined(START_INFERIOR_TRAPS_EXPECTED)
-#define START_INFERIOR_TRAPS_EXPECTED 2
-#endif
#endif /* !defined (INFERIOR_H) */
projects / deliverable / binutils-gdb.git / blobdiff