1991-03-28 16:26:26 +00:00
|
|
|
|
/* Variables that describe the inferior process running under GDB:
|
|
|
|
|
|
Where it is, why it stopped, and how to step it.
|
|
|
|
|
|
Copyright (C) 1986, 1989 Free Software Foundation, Inc.
|
|
|
|
|
|
|
|
|
|
|
|
This file is part of GDB.
|
|
|
|
|
|
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 07:43:50 +00:00
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
1991-03-28 16:26:26 +00:00
|
|
|
|
it under the terms of the GNU General Public License as published by
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 07:43:50 +00:00
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
|
(at your option) any later version.
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 07:43:50 +00:00
|
|
|
|
This program is distributed in the hope that it will be useful,
|
1991-03-28 16:26:26 +00:00
|
|
|
|
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
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 07:43:50 +00:00
|
|
|
|
along with this program; if not, write to the Free Software
|
|
|
|
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
|
/* For bpstat. */
|
|
|
|
|
|
#include "breakpoint.h"
|
|
|
|
|
|
|
|
|
|
|
|
/* For FRAME_ADDR. */
|
|
|
|
|
|
#include "frame.h"
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
|
* Structure in which to save the status of the inferior. 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 {
|
|
|
|
|
|
int pc_changed;
|
|
|
|
|
|
int stop_signal;
|
|
|
|
|
|
int stop_pc;
|
|
|
|
|
|
FRAME_ADDR stop_frame_address;
|
|
|
|
|
|
bpstat stop_bpstat;
|
|
|
|
|
|
int stop_step;
|
|
|
|
|
|
int stop_stack_dummy;
|
|
|
|
|
|
int stopped_by_random_signal;
|
|
|
|
|
|
int trap_expected;
|
|
|
|
|
|
CORE_ADDR step_range_start;
|
|
|
|
|
|
CORE_ADDR step_range_end;
|
|
|
|
|
|
FRAME_ADDR step_frame_address;
|
|
|
|
|
|
int step_over_calls;
|
|
|
|
|
|
CORE_ADDR step_resume_break_address;
|
|
|
|
|
|
int stop_after_trap;
|
|
|
|
|
|
int stop_soon_quietly;
|
|
|
|
|
|
FRAME_ADDR selected_frame_address;
|
|
|
|
|
|
int selected_level;
|
|
|
|
|
|
char stop_registers[REGISTER_BYTES];
|
|
|
|
|
|
int breakpoint_proceeded;
|
|
|
|
|
|
int restore_stack_info;
|
|
|
|
|
|
int proceed_to_finish;
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
void save_inferior_status (), restore_inferior_status ();
|
|
|
|
|
|
|
|
|
|
|
|
/* File name for default use for standard in/out in the inferior. */
|
|
|
|
|
|
|
|
|
|
|
|
extern char *inferior_io_terminal;
|
|
|
|
|
|
|
|
|
|
|
|
/* Pid of our debugged inferior, or 0 if no inferior now. */
|
|
|
|
|
|
|
|
|
|
|
|
extern int inferior_pid;
|
|
|
|
|
|
|
|
|
|
|
|
/* Character array containing an image of the inferior programs' registers. */
|
|
|
|
|
|
|
|
|
|
|
|
extern char registers[];
|
|
|
|
|
|
|
|
|
|
|
|
extern void clear_proceed_status ();
|
|
|
|
|
|
extern void start_inferior ();
|
|
|
|
|
|
extern void proceed ();
|
|
|
|
|
|
extern void kill_inferior ();
|
|
|
|
|
|
extern void kill_inferior_fast ();
|
|
|
|
|
|
extern void generic_mourn_inferior ();
|
|
|
|
|
|
extern void terminal_ours ();
|
|
|
|
|
|
extern void detach ();
|
|
|
|
|
|
extern void run_stack_dummy ();
|
|
|
|
|
|
extern CORE_ADDR read_pc ();
|
|
|
|
|
|
extern void write_pc ();
|
|
|
|
|
|
extern void wait_for_inferior ();
|
|
|
|
|
|
extern void init_wait_for_inferior ();
|
|
|
|
|
|
extern void close_exec_file ();
|
|
|
|
|
|
extern void reopen_exec_file ();
|
|
|
|
|
|
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 07:43:50 +00:00
|
|
|
|
/* From infcmd.c */
|
|
|
|
|
|
void attach_command (
|
|
|
|
|
|
#ifdef __STDC__
|
|
|
|
|
|
char *arg, int from_tty
|
|
|
|
|
|
#endif
|
|
|
|
|
|
);
|
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* Last signal that the inferior received (why it stopped). */
|
|
|
|
|
|
|
|
|
|
|
|
extern int stop_signal;
|
|
|
|
|
|
|
|
|
|
|
|
/* Address at which inferior stopped. */
|
|
|
|
|
|
|
|
|
|
|
|
extern CORE_ADDR stop_pc;
|
|
|
|
|
|
|
|
|
|
|
|
/* Stack frame when program stopped. */
|
|
|
|
|
|
|
|
|
|
|
|
extern FRAME_ADDR stop_frame_address;
|
|
|
|
|
|
|
|
|
|
|
|
/* 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;
|
|
|
|
|
|
|
|
|
|
|
|
/* Nonzero if program stopped due to a random (unexpected) signal in
|
|
|
|
|
|
inferior process. */
|
|
|
|
|
|
|
|
|
|
|
|
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. */
|
|
|
|
|
|
|
|
|
|
|
|
extern CORE_ADDR step_range_start; /* Inclusive */
|
|
|
|
|
|
extern CORE_ADDR step_range_end; /* Exclusive */
|
|
|
|
|
|
|
|
|
|
|
|
/* 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. */
|
|
|
|
|
|
|
|
|
|
|
|
extern FRAME_ADDR step_frame_address;
|
|
|
|
|
|
|
|
|
|
|
|
/* 1 means step over all subroutine calls.
|
|
|
|
|
|
-1 means step over calls to undebuggable functions. */
|
|
|
|
|
|
|
|
|
|
|
|
extern int step_over_calls;
|
|
|
|
|
|
|
|
|
|
|
|
/* If stepping, nonzero means step count is > 1
|
|
|
|
|
|
so don't print frame next time inferior stops
|
|
|
|
|
|
if it stops due to stepping. */
|
|
|
|
|
|
|
|
|
|
|
|
extern int step_multi;
|
|
|
|
|
|
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 07:43:50 +00:00
|
|
|
|
/* 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?). */
|
|
|
|
|
|
|
|
|
|
|
|
int stop_soon_quietly;
|
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* Nonzero if proceed is being used for a "finish" command or a similar
|
|
|
|
|
|
situation when stop_registers should be saved. */
|
|
|
|
|
|
|
|
|
|
|
|
extern int proceed_to_finish;
|
|
|
|
|
|
|
|
|
|
|
|
/* 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). */
|
|
|
|
|
|
|
|
|
|
|
|
extern char stop_registers[REGISTER_BYTES];
|
|
|
|
|
|
|
|
|
|
|
|
/* Nonzero if pc has been changed by the debugger
|
|
|
|
|
|
since the inferior stopped. */
|
|
|
|
|
|
|
|
|
|
|
|
extern int pc_changed;
|
|
|
|
|
|
|
|
|
|
|
|
/* Nonzero if the child process in inferior_pid was attached rather
|
|
|
|
|
|
than forked. */
|
|
|
|
|
|
|
|
|
|
|
|
int attach_flag;
|
|
|
|
|
|
|
|
|
|
|
|
/* Possible values for CALL_DUMMY_LOCATION. */
|
|
|
|
|
|
#define ON_STACK 1
|
|
|
|
|
|
#define BEFORE_TEXT_END 2
|
|
|
|
|
|
#define AFTER_TEXT_END 3
|
|
|
|
|
|
|
|
|
|
|
|
#if !defined (CALL_DUMMY_LOCATION)
|
|
|
|
|
|
#define CALL_DUMMY_LOCATION ON_STACK
|
|
|
|
|
|
#endif /* No CALL_DUMMY_LOCATION. */
|
|
|
|
|
|
|
|
|
|
|
|
/* Are we in a call dummy? The code below which allows DECR_PC_AFTER_BREAK
|
|
|
|
|
|
below is for infrun.c, which may give the macro a pc without that
|
|
|
|
|
|
subtracted out. */
|
|
|
|
|
|
#if !defined (PC_IN_CALL_DUMMY)
|
|
|
|
|
|
#if CALL_DUMMY_LOCATION == BEFORE_TEXT_END
|
|
|
|
|
|
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
|
|
|
|
|
|
((pc) >= text_end - CALL_DUMMY_LENGTH \
|
|
|
|
|
|
&& (pc) < text_end + DECR_PC_AFTER_BREAK)
|
|
|
|
|
|
#else /* Not before text_end. */
|
|
|
|
|
|
#if CALL_DUMMY_LOCATION == AFTER_TEXT_END
|
|
|
|
|
|
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
|
|
|
|
|
|
((pc) >= text_end \
|
|
|
|
|
|
&& (pc) < text_end + CALL_DUMMY_LENGTH + DECR_PC_AFTER_BREAK)
|
|
|
|
|
|
#else /* On stack. */
|
|
|
|
|
|
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
|
|
|
|
|
|
((sp) INNER_THAN (pc) && (pc) INNER_THAN (frame_address))
|
|
|
|
|
|
#endif /* On stack. */
|
|
|
|
|
|
#endif /* Not before text_end. */
|
|
|
|
|
|
#endif /* No PC_IN_CALL_DUMMY. */
|