X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Finferior.h;h=e09cb0021a91c39f573ace7ebb46facd5a30c35d;hb=bfde72c275bff9d5be21cf51ba790cf38ecd0d59;hp=1b83e52d96537d83dc71e3c69acfb25181bd0d1f;hpb=07107ca6f983e2dde5fa669a56563760a1f44c11;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/inferior.h b/gdb/inferior.h index 1b83e52d96..e09cb0021a 100644 --- a/gdb/inferior.h +++ b/gdb/inferior.h @@ -1,7 +1,7 @@ /* Variables that describe the inferior process running under GDB: Where it is, why it stopped, and how to step it. - Copyright (C) 1986-2013 Free Software Foundation, Inc. + Copyright (C) 1986-2015 Free Software Foundation, Inc. This file is part of GDB. @@ -31,8 +31,6 @@ struct ui_out; struct terminal_info; struct target_desc_info; -#include "ptid.h" - /* For bpstat. */ #include "breakpoint.h" @@ -65,16 +63,6 @@ extern void discard_infcall_control_state (struct infcall_control_state *); extern struct regcache * get_infcall_suspend_state_regcache (struct infcall_suspend_state *); -/* Returns true if PTID matches filter FILTER. FILTER can be the wild - card MINUS_ONE_PTID (all ptid match it); can be a ptid representing - a process (ptid_is_pid returns true), in which case, all lwps and - threads of that given process match, lwps and threads of other - processes do not; or, it can represent a specific thread, in which - case, only that thread will match true. PTID must represent a - specific LWP or THREAD, it can never be a wild card. */ - -extern int ptid_match (ptid_t ptid, ptid_t filter); - /* 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. */ @@ -90,45 +78,12 @@ extern void set_inferior_io_terminal (const char *terminal_name); extern const char *get_inferior_io_terminal (void); /* Collected pid, tid, etc. of the debugged inferior. When there's - no inferior, PIDGET (inferior_ptid) will be 0. */ + no inferior, ptid_get_pid (inferior_ptid) will be 0. */ extern ptid_t inferior_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; - -/* Inferior environment. */ - -extern void clear_proceed_status (void); - -extern void proceed (CORE_ADDR, enum gdb_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. */ -extern int step_stop_if_no_debug; - -/* 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 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; - -/* When set (default), the target should attempt to disable the operating - system's address space randomization feature when starting an inferior. */ -extern int disable_randomization; - extern void generic_mourn_inferior (void); -extern void terminal_save_ours (void); - -extern void terminal_ours (void); - extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); @@ -142,27 +97,8 @@ extern void address_to_signed_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr); -extern void wait_for_inferior (void); - -extern void prepare_for_detach (void); - -extern void fetch_inferior_event (void *); - -extern void init_wait_for_inferior (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 (int, enum gdb_signal); - -extern ptid_t user_visible_resume_ptid (int step); - -extern void insert_step_resume_breakpoint_at_sal (struct gdbarch *, - struct symtab_and_line , - struct frame_id); - /* From misc files */ extern void default_print_registers_info (struct gdbarch *gdbarch, @@ -170,17 +106,27 @@ extern void default_print_registers_info (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, int all); -extern void child_terminal_info (const char *, int); +/* Default implementation of gdbarch_print_float_info. Print + the values of all floating point registers. */ + +extern void default_print_float_info (struct gdbarch *gdbarch, + struct ui_file *file, + struct frame_info *frame, + const char *args); + +extern void child_terminal_info (struct target_ops *self, const char *, int); extern void term_info (char *, int); -extern void terminal_ours_for_output (void); +extern void child_terminal_ours (struct target_ops *self); -extern void terminal_inferior (void); +extern void child_terminal_ours_for_output (struct target_ops *self); -extern void terminal_init_inferior (void); +extern void child_terminal_inferior (struct target_ops *self); -extern void terminal_init_inferior_with_pgrp (int pgrp); +extern void child_terminal_init (struct target_ops *self); + +extern void child_terminal_init_with_pgrp (int pgrp); /* From fork-child.c */ @@ -195,35 +141,6 @@ extern void startup_inferior (int); extern char *construct_inferior_arguments (int, char **); -/* From infrun.c */ - -extern unsigned int debug_infrun; - -extern int stop_on_solib_events; - -extern void start_remote (int from_tty); - -extern void normal_stop (void); - -extern int signal_stop_state (int); - -extern int signal_print_state (int); - -extern int signal_pass_state (int); - -extern int signal_stop_update (int, int); - -extern int signal_print_update (int, int); - -extern int signal_pass_update (int, int); - -extern void get_last_target_status(ptid_t *ptid, - struct target_waitstatus *status); - -extern void follow_inferior_reset_breakpoints (void); - -void set_step_info (struct frame_info *frame, struct symtab_and_line sal); - /* From infcmd.c */ extern void post_create_inferior (struct target_ops *, int); @@ -249,7 +166,33 @@ extern void detach_command (char *, int); extern void notice_new_inferior (ptid_t, int, int); extern struct value *get_return_value (struct value *function, - struct type *value_type); + struct type *value_type); + +/* Prepare for execution command. TARGET is the target that will run + the command. BACKGROUND determines whether this is a foreground + (synchronous) or background (asynchronous) command. */ + +extern void prepare_execution_command (struct target_ops *target, + int background); + +/* Whether to start up the debuggee under a shell. + + If startup-with-shell is set, GDB's "run" will attempt to start up + the debuggee 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 may be handy to bypass the shell + in some cases. To disable this feature, do "set startup-with-shell + false". + + The catch-exec traps expected during start-up will be one more if + the target is started up with a shell. */ +extern int startup_with_shell; /* Address at which inferior stopped. */ @@ -282,20 +225,20 @@ enum step_over_calls_kind 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. - +/* STOP_QUIETLY_NO_SIGSTOP is used to handle a tricky situation with attach. + 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. */ @@ -308,58 +251,16 @@ enum stop_kind STOP_QUIETLY_NO_SIGSTOP }; -/* Reverse execution. */ -enum exec_direction_kind - { - EXEC_FORWARD, - EXEC_REVERSE - }; - -/* The current execution direction. This should only be set to enum - exec_direction_kind values. It is only an int to make it - compatible with make_cleanup_restore_integer. */ -extern int 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). */ - -extern struct regcache *stop_registers; - -/* True if we are debugging displaced stepping. */ -extern int debug_displaced; - -/* 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); - -struct displaced_step_closure *get_displaced_step_closure_by_addr (CORE_ADDR addr); /* Possible values for gdbarch_call_dummy_location. */ #define ON_STACK 1 #define AT_ENTRY_POINT 4 -/* 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 +/* Number of traps that happen between exec'ing the shell to run an + inferior and when we finally get to the inferior code, not counting + the exec for the shell. This is 1 on all supported + implementations. */ +#define START_INFERIOR_TRAPS_EXPECTED 1 struct private_inferior; @@ -373,16 +274,6 @@ struct inferior_control_state enum stop_kind stop_soon; }; -/* Inferior process specific part of `struct infcall_suspend_state'. - - Inferior thread counterpart is `struct thread_suspend_state'. */ - -#if 0 /* Currently unused and empty structures are not valid C. */ -struct inferior_suspend_state -{ -}; -#endif - /* 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 @@ -411,12 +302,6 @@ struct inferior See `struct inferior_control_state'. */ struct inferior_control_state control; - /* State of inferior process to restore after GDB is done with an inferior - call. See `struct inferior_suspend_state'. */ -#if 0 /* Currently unused and empty structures are not valid C. */ - struct inferior_suspend_state suspend; -#endif - /* True if this was an auto-created inferior, e.g. created from following a fork; false, if this inferior was manually added by the user, and we should not attempt to prune it @@ -480,7 +365,7 @@ struct inferior struct continuation *continuations; /* Private data used by the target vector implementation. */ - struct private_inferior *private; + struct private_inferior *priv; /* HAS_EXIT_CODE is true if the inferior exited with an exit code. In this case, the EXIT_CODE field is also valid. */ @@ -531,14 +416,7 @@ extern struct inferior *add_inferior (int pid); the CLI. */ extern struct inferior *add_inferior_silent (int pid); -/* Delete an existing inferior list entry, due to inferior exit. */ -extern void delete_inferior (int pid); - -extern void delete_inferior_1 (struct inferior *todel, int silent); - -/* Same as delete_inferior, but don't print new inferior notifications - to the CLI. */ -extern void delete_inferior_silent (int pid); +extern void delete_inferior (struct inferior *todel); /* Delete an existing inferior list entry, due to inferior detaching. */ extern void detach_inferior (int pid); @@ -572,10 +450,14 @@ extern int valid_gdb_inferior_id (int num); /* Search function to lookup an inferior by target 'pid'. */ extern struct inferior *find_inferior_pid (int pid); +/* Search function to lookup an inferior whose pid is equal to 'ptid.pid'. */ +extern struct inferior *find_inferior_ptid (ptid_t ptid); + /* Search function to lookup an inferior by GDB 'num'. */ extern struct inferior *find_inferior_id (int num); -/* Find an inferior bound to PSPACE. */ +/* Find an inferior bound to PSPACE, giving preference to the current + inferior. */ extern struct inferior * find_inferior_for_program_space (struct program_space *pspace); @@ -623,20 +505,4 @@ extern int number_of_inferiors (void); extern struct inferior *add_inferior_with_spaces (void); -extern void update_observer_mode (void); - -extern void update_signals_program_target (void); - -extern void signal_catch_update (const unsigned int *); - -/* In some circumstances we allow a command to specify a numeric - signal. The idea is to keep these circumstances limited so that - users (and scripts) develop portable habits. For comparison, - POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a - numeric signal at all is obsolescent. We are slightly more lenient - and allow 1-15 which should match host signal numbers on most - systems. Use of symbolic signal names is strongly encouraged. */ - -enum gdb_signal gdb_signal_from_command (int num); - #endif /* !defined (INFERIOR_H) */