1992-09-26 01:49:18 +00:00
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/* Target-struct-independent code to start (run) and stop an inferior process.
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* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
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Copyright 1986, 1987, 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
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1991-03-28 16:26:26 +00:00
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This file is part of GDB.
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1991-08-02 07:15:20 +00:00
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This program is free software; you can redistribute it and/or modify
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1991-03-28 16:26:26 +00:00
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it under the terms of the GNU General Public License as published by
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1991-08-02 07:15:20 +00:00
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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1991-03-28 16:26:26 +00:00
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1991-08-02 07:15:20 +00:00
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This program is distributed in the hope that it will be useful,
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1991-03-28 16:26:26 +00:00
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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1991-08-02 07:15:20 +00:00
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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1991-03-28 16:26:26 +00:00
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/* Notes on the algorithm used in wait_for_inferior to determine if we
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just did a subroutine call when stepping. We have the following
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information at that point:
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Current and previous (just before this step) pc.
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Current and previous sp.
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Current and previous start of current function.
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1991-11-18 23:52:12 +00:00
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If the starts of the functions don't match, then
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1991-03-28 16:26:26 +00:00
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a) We did a subroutine call.
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In this case, the pc will be at the beginning of a function.
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b) We did a subroutine return.
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Otherwise.
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c) We did a longjmp.
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If we did a longjump, we were doing "nexti", since a next would
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have attempted to skip over the assembly language routine in which
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the longjmp is coded and would have simply been the equivalent of a
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continue. I consider this ok behaivior. We'd like one of two
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things to happen if we are doing a nexti through the longjmp()
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routine: 1) It behaves as a stepi, or 2) It acts like a continue as
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above. Given that this is a special case, and that anybody who
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thinks that the concept of sub calls is meaningful in the context
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of a longjmp, I'll take either one. Let's see what happens.
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Acts like a subroutine return. I can handle that with no problem
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at all.
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-->So: If the current and previous beginnings of the current
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function don't match, *and* the pc is at the start of a function,
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we've done a subroutine call. If the pc is not at the start of a
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function, we *didn't* do a subroutine call.
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-->If the beginnings of the current and previous function do match,
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either:
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a) We just did a recursive call.
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In this case, we would be at the very beginning of a
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function and 1) it will have a prologue (don't jump to
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before prologue, or 2) (we assume here that it doesn't have
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a prologue) there will have been a change in the stack
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pointer over the last instruction. (Ie. it's got to put
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the saved pc somewhere. The stack is the usual place. In
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a recursive call a register is only an option if there's a
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prologue to do something with it. This is even true on
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register window machines; the prologue sets up the new
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window. It might not be true on a register window machine
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where the call instruction moved the register window
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itself. Hmmm. One would hope that the stack pointer would
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also change. If it doesn't, somebody send me a note, and
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I'll work out a more general theory.
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bug-gdb@prep.ai.mit.edu). This is true (albeit slipperly
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so) on all machines I'm aware of:
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m68k: Call changes stack pointer. Regular jumps don't.
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sparc: Recursive calls must have frames and therefor,
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prologues.
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vax: All calls have frames and hence change the
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stack pointer.
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b) We did a return from a recursive call. I don't see that we
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have either the ability or the need to distinguish this
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from an ordinary jump. The stack frame will be printed
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when and if the frame pointer changes; if we are in a
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function without a frame pointer, it's the users own
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lookout.
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c) We did a jump within a function. We assume that this is
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true if we didn't do a recursive call.
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d) We are in no-man's land ("I see no symbols here"). We
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don't worry about this; it will make calls look like simple
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jumps (and the stack frames will be printed when the frame
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pointer moves), which is a reasonably non-violent response.
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*/
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#include "defs.h"
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1992-03-03 23:26:26 +00:00
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#include <string.h>
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1992-10-15 01:57:45 +00:00
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#include <ctype.h>
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1991-03-28 16:26:26 +00:00
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#include "symtab.h"
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#include "frame.h"
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#include "inferior.h"
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#include "breakpoint.h"
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#include "wait.h"
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#include "gdbcore.h"
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NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
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#include "gdbcmd.h"
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1991-03-28 16:26:26 +00:00
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#include "target.h"
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#include <signal.h>
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/* unistd.h is needed to #define X_OK */
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#ifdef USG
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#include <unistd.h>
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#else
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#include <sys/file.h>
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#endif
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* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
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/* Prototypes for local functions */
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1991-03-28 16:26:26 +00:00
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* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
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static void
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1992-06-23 00:25:11 +00:00
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signals_info PARAMS ((char *, int));
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1991-12-14 00:13:05 +00:00
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* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
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static void
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handle_command PARAMS ((char *, int));
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static void
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sig_print_info PARAMS ((int));
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static void
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sig_print_header PARAMS ((void));
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static void
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remove_step_breakpoint PARAMS ((void));
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1991-03-28 16:26:26 +00:00
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* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
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static void
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insert_step_breakpoint PARAMS ((void));
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static void
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resume_cleanups PARAMS ((int));
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NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
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static int
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hook_stop_stub PARAMS ((char *));
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1991-03-28 16:26:26 +00:00
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/* Sigtramp is a routine that the kernel calls (which then calls the
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signal handler). On most machines it is a library routine that
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is linked into the executable.
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This macro, given a program counter value and the name of the
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function in which that PC resides (which can be null if the
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name is not known), returns nonzero if the PC and name show
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that we are in sigtramp.
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On most machines just see if the name is sigtramp (and if we have
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no name, assume we are not in sigtramp). */
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#if !defined (IN_SIGTRAMP)
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#define IN_SIGTRAMP(pc, name) \
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1991-09-25 01:09:15 +00:00
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(name && !strcmp ("_sigtramp", name))
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1991-03-28 16:26:26 +00:00
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#endif
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* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
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/* GET_LONGJMP_TARGET returns the PC at which longjmp() will resume the
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program. It needs to examine the jmp_buf argument and extract the PC
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from it. The return value is non-zero on success, zero otherwise. */
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#ifndef GET_LONGJMP_TARGET
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#define GET_LONGJMP_TARGET(PC_ADDR) 0
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#endif
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1992-03-03 23:26:26 +00:00
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/* Some machines have trampoline code that sits between function callers
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and the actual functions themselves. If this machine doesn't have
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such things, disable their processing. */
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#ifndef SKIP_TRAMPOLINE_CODE
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#define SKIP_TRAMPOLINE_CODE(pc) 0
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#endif
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1992-03-29 22:33:35 +00:00
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/* For SVR4 shared libraries, each call goes through a small piece of
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trampoline code in the ".init" section. IN_SOLIB_TRAMPOLINE evaluates
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to nonzero if we are current stopped in one of these. */
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#ifndef IN_SOLIB_TRAMPOLINE
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#define IN_SOLIB_TRAMPOLINE(pc,name) 0
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#endif
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1992-03-03 23:26:26 +00:00
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* hppa-pinsn.c (print_insn): Improve handling of be and ble
branch targets to compute target address using const from previous
instruction if necessary.
* Add `Q' operator to print out bit position field various
instructions.
* hppah-nat.c: #include sys/param.h, and sys/user.h. General
cleanups, use new code from Utah.
* (store_inferior_registers): Update to new code from Utah.
* (initialize_kernel_u_addr): Re-enable decl of struct user u.
* (fetch_register): Clear out priv level when reading PCs.
* hppah-tdep.c: Get rid of gobs of KERNELDEBUG stuff.
* Remove decl of errno, #include wait.h and target.h.
* (frame_saved_pc): Check `flags' pseudo-register to see if we
were inside of a kernel call. If so, then PC is in a different
register. Also, mask out bottom two bits of all PCs so as not to
confuse higher level code.
* (push_dummy_frame): Create from #define in tm-hppa.h.
* (find_dummy_frame_regs): Update from Utah.
* (hp_pop_frame): Create from #define in tm-hppa.h.
* (hp_restore_pc_queue): New, from Utah.
* (hp_push_arguments): Big fixes from Utah.
* (pa_do_registers_info, pa_print_registers): Only print out fp
regs upon request.
* (skip_trampoline_code): New routine to deal with stubs that
live in nowhereland between callers and callees.
* i860-tdep.c: Remove decl of attach_flag.
* infrun.c (wait_for_inferior): Add new macro
INSTRUCTION_NULLIFIED, which can tell if the instruction pointed
at by PC will be nullified. If so, then step the target once more
so as to avoid confusing the user.
* (just before step_over_function:): Use stop_func_start, not
stop_pc when checking for the existance of line number info.
stop_func_start will reflect the proper address of the target
routine, not of the stub that we may be traversing to get there.
* tm-hppa.h: define SKIP_TRAMPOLINE_CODE and IN_SOLIB_TRAMPOLINE
to deal with the stubs that PA compilers sometimes stick between
callers and callees. Also, define FLAGS_REGNUM for access to the
`flags' pseudo-reg.
* (REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use
memcpy, not bcopy.
* (CANNOT_STORE_REGISTER): New from Utah. Says that we can't
write gr0, PC regs, and PSW!
* (FRAME_FIND_SAVED_REGS): Bug fixes from Utah.
* (PUSH_DUMMY_FRAME, POP_FRAME): Make into real routines in
hppah-nat.c.
* (CALL_DUMMY, FIX_CALL_DUMMY): Fixes from Utah.
* Define struct unwind_table_entry.
* valops.c (call_function_by_hand): Add another arg to
FIX_CALL_DUMMY (under #ifdef GDB_TARGET_IS_HPPA). Why is this
necessary?
1992-12-22 03:18:46 +00:00
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/* On some systems, the PC may be left pointing at an instruction that won't
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actually be executed. This is usually indicated by a bit in the PSW. If
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we find ourselves in such a state, then we step the target beyond the
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nullified instruction before returning control to the user so as to avoid
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confusion. */
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#ifndef INSTRUCTION_NULLIFIED
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#define INSTRUCTION_NULLIFIED 0
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|
|
|
|
#endif
|
|
|
|
|
|
1992-03-03 23:26:26 +00:00
|
|
|
|
#ifdef TDESC
|
|
|
|
|
#include "tdesc.h"
|
|
|
|
|
int safe_to_init_tdesc_context = 0;
|
|
|
|
|
extern dc_dcontext_t current_context;
|
|
|
|
|
#endif
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* Tables of how to react to signals; the user sets them. */
|
|
|
|
|
|
1992-09-19 11:25:52 +00:00
|
|
|
|
static unsigned char *signal_stop;
|
|
|
|
|
static unsigned char *signal_print;
|
|
|
|
|
static unsigned char *signal_program;
|
|
|
|
|
|
|
|
|
|
#define SET_SIGS(nsigs,sigs,flags) \
|
|
|
|
|
do { \
|
|
|
|
|
int signum = (nsigs); \
|
|
|
|
|
while (signum-- > 0) \
|
|
|
|
|
if ((sigs)[signum]) \
|
|
|
|
|
(flags)[signum] = 1; \
|
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
#define UNSET_SIGS(nsigs,sigs,flags) \
|
|
|
|
|
do { \
|
|
|
|
|
int signum = (nsigs); \
|
|
|
|
|
while (signum-- > 0) \
|
|
|
|
|
if ((sigs)[signum]) \
|
|
|
|
|
(flags)[signum] = 0; \
|
|
|
|
|
} while (0)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
|
|
|
|
|
|
|
|
|
/* Command list pointer for the "stop" placeholder. */
|
|
|
|
|
|
|
|
|
|
static struct cmd_list_element *stop_command;
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* Nonzero if breakpoints are now inserted in the inferior. */
|
|
|
|
|
|
NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
|
|
|
|
static int breakpoints_inserted;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
/* Function inferior was in as of last step command. */
|
|
|
|
|
|
|
|
|
|
static struct symbol *step_start_function;
|
|
|
|
|
|
|
|
|
|
/* Nonzero => address for special breakpoint for resuming stepping. */
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR step_resume_break_address;
|
|
|
|
|
|
|
|
|
|
/* Pointer to orig contents of the byte where the special breakpoint is. */
|
|
|
|
|
|
|
|
|
|
static char step_resume_break_shadow[BREAKPOINT_MAX];
|
|
|
|
|
|
|
|
|
|
/* Nonzero means the special breakpoint is a duplicate
|
|
|
|
|
so it has not itself been inserted. */
|
|
|
|
|
|
|
|
|
|
static int step_resume_break_duplicate;
|
|
|
|
|
|
|
|
|
|
/* Nonzero if we are expecting a trace trap and should proceed from it. */
|
|
|
|
|
|
|
|
|
|
static int trap_expected;
|
|
|
|
|
|
|
|
|
|
/* Nonzero if the next time we try to continue the inferior, it will
|
|
|
|
|
step one instruction and generate a spurious trace trap.
|
|
|
|
|
This is used to compensate for a bug in HP-UX. */
|
|
|
|
|
|
|
|
|
|
static int trap_expected_after_continue;
|
|
|
|
|
|
|
|
|
|
/* Nonzero means expecting a trace trap
|
|
|
|
|
and should stop the inferior and return silently when it happens. */
|
|
|
|
|
|
|
|
|
|
int stop_after_trap;
|
|
|
|
|
|
|
|
|
|
/* 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;
|
|
|
|
|
|
|
|
|
|
/* Nonzero if pc has been changed by the debugger
|
|
|
|
|
since the inferior stopped. */
|
|
|
|
|
|
|
|
|
|
int pc_changed;
|
|
|
|
|
|
|
|
|
|
/* Nonzero if proceed is being used for a "finish" command or a similar
|
|
|
|
|
situation when stop_registers should be saved. */
|
|
|
|
|
|
|
|
|
|
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). */
|
|
|
|
|
|
|
|
|
|
char stop_registers[REGISTER_BYTES];
|
|
|
|
|
|
|
|
|
|
/* Nonzero if program stopped due to error trying to insert breakpoints. */
|
|
|
|
|
|
|
|
|
|
static int breakpoints_failed;
|
|
|
|
|
|
|
|
|
|
/* Nonzero after stop if current stack frame should be printed. */
|
|
|
|
|
|
|
|
|
|
static int stop_print_frame;
|
|
|
|
|
|
|
|
|
|
#ifdef NO_SINGLE_STEP
|
|
|
|
|
extern int one_stepped; /* From machine dependent code */
|
|
|
|
|
extern void single_step (); /* Same. */
|
|
|
|
|
#endif /* NO_SINGLE_STEP */
|
|
|
|
|
|
1991-04-24 19:17:58 +00:00
|
|
|
|
|
|
|
|
|
/* Things to clean up if we QUIT out of resume (). */
|
1991-05-02 04:28:42 +00:00
|
|
|
|
/* ARGSUSED */
|
1991-04-24 19:17:58 +00:00
|
|
|
|
static void
|
|
|
|
|
resume_cleanups (arg)
|
|
|
|
|
int arg;
|
|
|
|
|
{
|
|
|
|
|
normal_stop ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Resume the inferior, but allow a QUIT. This is useful if the user
|
|
|
|
|
wants to interrupt some lengthy single-stepping operation
|
|
|
|
|
(for child processes, the SIGINT goes to the inferior, and so
|
|
|
|
|
we get a SIGINT random_signal, but for remote debugging and perhaps
|
|
|
|
|
other targets, that's not true).
|
|
|
|
|
|
|
|
|
|
STEP nonzero if we should step (zero to continue instead).
|
|
|
|
|
SIG is the signal to give the inferior (zero for none). */
|
1992-09-25 19:19:08 +00:00
|
|
|
|
void
|
1991-04-24 19:17:58 +00:00
|
|
|
|
resume (step, sig)
|
|
|
|
|
int step;
|
|
|
|
|
int sig;
|
|
|
|
|
{
|
|
|
|
|
struct cleanup *old_cleanups = make_cleanup (resume_cleanups, 0);
|
|
|
|
|
QUIT;
|
1991-05-30 08:52:52 +00:00
|
|
|
|
|
|
|
|
|
#ifdef NO_SINGLE_STEP
|
|
|
|
|
if (step) {
|
1992-02-29 06:03:43 +00:00
|
|
|
|
single_step(sig); /* Do it the hard way, w/temp breakpoints */
|
1991-05-30 08:52:52 +00:00
|
|
|
|
step = 0; /* ...and don't ask hardware to do it. */
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
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
|
|
|
|
/* Handle any optimized stores to the inferior NOW... */
|
|
|
|
|
#ifdef DO_DEFERRED_STORES
|
|
|
|
|
DO_DEFERRED_STORES;
|
|
|
|
|
#endif
|
|
|
|
|
|
1991-04-24 19:17:58 +00:00
|
|
|
|
target_resume (step, sig);
|
|
|
|
|
discard_cleanups (old_cleanups);
|
|
|
|
|
}
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
/* Clear out all variables saying what to do when inferior is continued.
|
|
|
|
|
First do this, then set the ones you want, then call `proceed'. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
clear_proceed_status ()
|
|
|
|
|
{
|
|
|
|
|
trap_expected = 0;
|
|
|
|
|
step_range_start = 0;
|
|
|
|
|
step_range_end = 0;
|
|
|
|
|
step_frame_address = 0;
|
|
|
|
|
step_over_calls = -1;
|
|
|
|
|
step_resume_break_address = 0;
|
|
|
|
|
stop_after_trap = 0;
|
|
|
|
|
stop_soon_quietly = 0;
|
|
|
|
|
proceed_to_finish = 0;
|
|
|
|
|
breakpoint_proceeded = 1; /* We're about to proceed... */
|
|
|
|
|
|
|
|
|
|
/* Discard any remaining commands or status from previous stop. */
|
|
|
|
|
bpstat_clear (&stop_bpstat);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Basic routine for continuing the program in various fashions.
|
|
|
|
|
|
|
|
|
|
ADDR is the address to resume at, or -1 for resume where stopped.
|
|
|
|
|
SIGGNAL is the signal to give it, or 0 for none,
|
|
|
|
|
or -1 for act according to how it stopped.
|
|
|
|
|
STEP is nonzero if should trap after one instruction.
|
|
|
|
|
-1 means return after that and print nothing.
|
|
|
|
|
You should probably set various step_... variables
|
|
|
|
|
before calling here, if you are stepping.
|
|
|
|
|
|
|
|
|
|
You should call clear_proceed_status before calling proceed. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
proceed (addr, siggnal, step)
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
int siggnal;
|
|
|
|
|
int step;
|
|
|
|
|
{
|
|
|
|
|
int oneproc = 0;
|
|
|
|
|
|
|
|
|
|
if (step > 0)
|
|
|
|
|
step_start_function = find_pc_function (read_pc ());
|
|
|
|
|
if (step < 0)
|
|
|
|
|
stop_after_trap = 1;
|
|
|
|
|
|
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
|
|
|
|
if (addr == (CORE_ADDR)-1)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
|
|
|
|
/* If there is a breakpoint at the address we will resume at,
|
|
|
|
|
step one instruction before inserting breakpoints
|
|
|
|
|
so that we do not stop right away. */
|
|
|
|
|
|
|
|
|
|
if (!pc_changed && breakpoint_here_p (read_pc ()))
|
|
|
|
|
oneproc = 1;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
write_register (PC_REGNUM, addr);
|
|
|
|
|
#ifdef NPC_REGNUM
|
|
|
|
|
write_register (NPC_REGNUM, addr + 4);
|
|
|
|
|
#ifdef NNPC_REGNUM
|
|
|
|
|
write_register (NNPC_REGNUM, addr + 8);
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (trap_expected_after_continue)
|
|
|
|
|
{
|
|
|
|
|
/* If (step == 0), a trap will be automatically generated after
|
|
|
|
|
the first instruction is executed. Force step one
|
|
|
|
|
instruction to clear this condition. This should not occur
|
|
|
|
|
if step is nonzero, but it is harmless in that case. */
|
|
|
|
|
oneproc = 1;
|
|
|
|
|
trap_expected_after_continue = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (oneproc)
|
|
|
|
|
/* We will get a trace trap after one instruction.
|
|
|
|
|
Continue it automatically and insert breakpoints then. */
|
|
|
|
|
trap_expected = 1;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int temp = insert_breakpoints ();
|
|
|
|
|
if (temp)
|
|
|
|
|
{
|
|
|
|
|
print_sys_errmsg ("ptrace", temp);
|
|
|
|
|
error ("Cannot insert breakpoints.\n\
|
|
|
|
|
The same program may be running in another process.");
|
|
|
|
|
}
|
|
|
|
|
breakpoints_inserted = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Install inferior's terminal modes. */
|
|
|
|
|
target_terminal_inferior ();
|
|
|
|
|
|
|
|
|
|
if (siggnal >= 0)
|
|
|
|
|
stop_signal = siggnal;
|
|
|
|
|
/* If this signal should not be seen by program,
|
|
|
|
|
give it zero. Used for debugging signals. */
|
|
|
|
|
else if (stop_signal < NSIG && !signal_program[stop_signal])
|
|
|
|
|
stop_signal= 0;
|
|
|
|
|
|
|
|
|
|
/* Resume inferior. */
|
1991-04-24 19:17:58 +00:00
|
|
|
|
resume (oneproc || step || bpstat_should_step (), stop_signal);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
/* Wait for it to stop (if not standalone)
|
|
|
|
|
and in any case decode why it stopped, and act accordingly. */
|
|
|
|
|
|
|
|
|
|
wait_for_inferior ();
|
|
|
|
|
normal_stop ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Record the pc and sp of the program the last time it stopped.
|
|
|
|
|
These are just used internally by wait_for_inferior, but need
|
|
|
|
|
to be preserved over calls to it and cleared when the inferior
|
|
|
|
|
is started. */
|
|
|
|
|
static CORE_ADDR prev_pc;
|
|
|
|
|
static CORE_ADDR prev_sp;
|
|
|
|
|
static CORE_ADDR prev_func_start;
|
|
|
|
|
static char *prev_func_name;
|
|
|
|
|
|
1991-04-24 19:17:58 +00:00
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* Start remote-debugging of a machine over a serial link. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
start_remote ()
|
|
|
|
|
{
|
|
|
|
|
init_wait_for_inferior ();
|
|
|
|
|
clear_proceed_status ();
|
|
|
|
|
stop_soon_quietly = 1;
|
|
|
|
|
trap_expected = 0;
|
1991-04-20 03:59:44 +00:00
|
|
|
|
wait_for_inferior ();
|
|
|
|
|
normal_stop ();
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Initialize static vars when a new inferior begins. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
init_wait_for_inferior ()
|
|
|
|
|
{
|
|
|
|
|
/* These are meaningless until the first time through wait_for_inferior. */
|
|
|
|
|
prev_pc = 0;
|
|
|
|
|
prev_sp = 0;
|
|
|
|
|
prev_func_start = 0;
|
|
|
|
|
prev_func_name = NULL;
|
|
|
|
|
|
|
|
|
|
trap_expected_after_continue = 0;
|
|
|
|
|
breakpoints_inserted = 0;
|
|
|
|
|
mark_breakpoints_out ();
|
|
|
|
|
stop_signal = 0; /* Don't confuse first call to proceed(). */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Wait for control to return from inferior to debugger.
|
|
|
|
|
If inferior gets a signal, we may decide to start it up again
|
|
|
|
|
instead of returning. That is why there is a loop in this function.
|
|
|
|
|
When this function actually returns it means the inferior
|
|
|
|
|
should be left stopped and GDB should read more commands. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
wait_for_inferior ()
|
|
|
|
|
{
|
|
|
|
|
WAITTYPE w;
|
|
|
|
|
int another_trap;
|
|
|
|
|
int random_signal;
|
|
|
|
|
CORE_ADDR stop_sp;
|
|
|
|
|
CORE_ADDR stop_func_start;
|
|
|
|
|
char *stop_func_name;
|
1992-03-03 23:26:26 +00:00
|
|
|
|
CORE_ADDR prologue_pc, tmp;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
int stop_step_resume_break;
|
|
|
|
|
struct symtab_and_line sal;
|
|
|
|
|
int remove_breakpoints_on_following_step = 0;
|
1991-10-22 00:50:58 +00:00
|
|
|
|
int current_line;
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
int handling_longjmp = 0; /* FIXME */
|
* Makefile.in (VERSION): Bump to 4.7.4.
* Makefile.in (SFILES_MAINDIR): Add typeprint.c, c-typeprint.c,
m2-typeprint.c, c-valprint.c cp-valprint.c m2-valprint.c.
* Makefile.in (HFILES): Add valprint.h.
* Makefile.in (OBS): Add typeprint.o, c-typeprint.o,
m2-typeprint.o, c-valprint.o, cp-valprint.o m2-valprint.o.
* typeprint.c, typeprint.h: New files for language independent
type printing functions.
* c-typeprint.c, m2-typeprint.c: New files for language dependent
type printing functions and definitions.
* valprint.h: New include file for language independent value
printing definitions.
* c-valprint.c, cp-valprint.c, m2-valprint.c: New files for language
dependent value printing functions.
* c-exp.y (production ptype): Add range_type variable and use new
create_range_type function.
* c-exp.y (tokentab2, tokentab3), c-lang.c (c_op_print_tab),
infcmd.c (path_var_name), language.c (unk_op_print_tab),
m2-lang.c (m2_op_print_tab): Change from ANSI-obsolescent
"const static" to ANSI-conformant "static const".
* c-exp.y (c_create_fundamental_type): Remove unused nbytes.
* c-exp.y (c_language_defn, cplus_language_defn): Add c_print_type,
and c_val_print.
* c-lang.h (c_print_type, c_val_print): Add prototypes.
* coffread.c (decode_type): Add range_type variable and call to
new create_range_type function.
* complaints.c (complain): Remove unused val variable.
* complaints.c (_initialize_complaints): Make it void.
* convex-tdep.c (value_of_trapped_internalvar): Add range_type
variable and call new create_range_type function.
* defs.h (enum val_prettyprint): Move enum from value.h to here
so we can avoid having to include value.h just for prototypes that
need the enum (thanks ANSI).
* dwarfread.c (struct_type): Local anonymous_size variable is
only used if !BITS_BIG_ENDIAN.
* dwarfread.c (decode_subscript_data_item): Add rangetype
variable and call new create_range_type function.
* elfread.c (elf_symfile_read): Remove unused dbx and text_sect
variables.
* eval.c (evaluate_subexp): Remove unused local variable name
and the statement with no side effects that initializes it.
* expprint.c (print_subexp): Change local_printstr to
LA_PRINT_STRING.
* gdbtypes.c (create_range_type): New function that creates
a range type using code fragments from object file readers as
an example of what has to be initialized.
* gdbtypes.c (create_array_type): Removed index_type, low_bound,
and high_bound parameters, replaced with a single range_type
parameter. Change function body to use passed in range_type
rather than handcrafting one.
* gdbtypes.h (create_range_type): Add prototype.
* gdbtypes.h (create_array_type): Change prototype parameters.
* infrun.c (normal_stop): Remove unused local variables tem and c.
* infrun.c (hook_stop_stub): Return 0 rather than random value.
* language.c (unk_lang_print_type, unk_lang_val_print): Add
stub functions that call error if called.
* language.c (unknown_language_defn, auto_language_defn,
local_language_defn): Add initializers unk_lang_print_type and
unk_lang_val_print.
* language.h (struct language_defn): Reformat for larger
comments, add la_print_type and la_val_print members. Add
LA_PRINT_TYPE and LA_VAL_PRINT macros. Change local_printchar
to LA_PRINT_CHAR and local_printstr to LA_PRINT_STRING.
* m2-lang.c (m2_create_fundamental_type): Remove unused local
variable nbytes.
* m2-lang.c (m2_language_defn): Add initializers m2_print_type
and m2_val_print.
* m2-lang.h (m2_print_type, m2_val_print): Add prototypes.
* main.c (execute_command): Remove unused local variable cmdlines.
* main.c (echo_command), stabsread.c (read_type), printcmd.c
(clear_displays), symmisc.c (block_depth), values.c
(clear_value_history):
Make testing of truth value of assignment result explicit.
* mipsread.c (upgrade_type): Update FIXME to include future use
of create_range_type.
* printcmd.c (ptype_command, ptype_eval, whatis_command,
whatis_exp, maintenance_print_type): Move prototypes and functions
to new typeprint.c.
* printcmd.c (_initialize_printcmd): Move add_com calls for
ptype_command and whatis_command to new typeprint.c.
* ser-bsd.c (serial_open): Remove unused variable sgttyb.
* source.c (find_source_lines): Local variable c only used
when LSEEK_NOT_LINEAR is defined.
* stabsread.c (read_array_type): Use new create_range_type
function.
* stabsread.c (read_range_type): Add new index_type variable and
call new create_range_type function rather than handcrafting
range types.
* symmisc.c (type_print_1): Change usages to LA_PRINT_TYPE.
* symtab.c (typedef_print usages): Use c_typedef_print, renamed.
* symtab.c (type_print_base usages): Use c_type_print_base.
* symtab.c (type_print_varspec_prefix usages): Use
c_type_print_varspec_prefix.
* symtab.c (type_print_method_args usages): Use
cp_type_print_method_args.
* valprint.c: Completely ripped apart and the fragments used
to create c-valprint.c, cp-valprint.c, m2-valprint.c, and
valprint.h. Remaining stuff is language independent.
* value.h (struct fn_field): Forward declare for prototypes.
* value.h (type_print_1): Remove prototype.
* value.h (enum val_prettyprint): Moved to defs.h.
* value.h (typedef_print): Prototype renamed to c_typedef_print.
* value.h (baseclass_offset): Add prototype.
**** start-sanitize-chill ****
* Makefile.in (SFILES_MAINDIR): Add ch-typeprint.c, ch-valprint.c.
* Makefile.in (OBS): Add ch-typeprint.o, ch-valprint.o.
* ch-typeprint.c: New file for language dependent type printing.
* ch-valprint.c: New file for language dependent value printing.
* ch-exp.y (parse_number): Remove prototype and stub function.
* ch-exp.y (decode_integer_literal): Removed unused digits and
temp variables.
* ch-exp.y (convert_float): Completely ifdef out for now.
* ch-exp.y (tokentab2, tokentab3, tokentab4, tokentab5),
ch-lang.c (chill_op_print_tab):
Change from ANSI-obsolescent "const static" to ANSI-conformant
"static const".
* ch-exp.y (yylex): Add unhandled storage class enumeration
literals to switch statement for completeness.
* ch-lang.c (chill_create_fundamental_types): Remove unused
nbytes variable. Change dummy type to 2 bytes to match int.
Handle FT_VOID types gratuituously added to chill DWARF by
compiler. Change FT_CHAR case to generate an TYPE_CODE_CHAR
type rather than a one byte TYPE_CODE_INT type.
* ch-lang.c (chill_language_defn): Add chill_print_type and
chill_val_print.
* ch-lang.h (chill_print_type, chill_val_print): Add prototypes.
**** end-sanitize-chill ****
1992-12-18 20:21:32 +00:00
|
|
|
|
struct symtab *symtab;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
1991-10-22 00:50:58 +00:00
|
|
|
|
sal = find_pc_line(prev_pc, 0);
|
|
|
|
|
current_line = sal.line;
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
/* Clean up saved state that will become invalid. */
|
|
|
|
|
pc_changed = 0;
|
|
|
|
|
flush_cached_frames ();
|
|
|
|
|
registers_changed ();
|
|
|
|
|
|
|
|
|
|
target_wait (&w);
|
|
|
|
|
|
1992-03-29 22:33:35 +00:00
|
|
|
|
#ifdef SIGTRAP_STOP_AFTER_LOAD
|
|
|
|
|
|
|
|
|
|
/* Somebody called load(2), and it gave us a "trap signal after load".
|
|
|
|
|
Ignore it gracefully. */
|
|
|
|
|
|
|
|
|
|
SIGTRAP_STOP_AFTER_LOAD (w);
|
|
|
|
|
#endif
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* See if the process still exists; clean up if it doesn't. */
|
|
|
|
|
if (WIFEXITED (w))
|
|
|
|
|
{
|
|
|
|
|
target_terminal_ours (); /* Must do this before mourn anyway */
|
|
|
|
|
if (WEXITSTATUS (w))
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("\nProgram exited with code 0%o.\n",
|
1991-03-28 16:26:26 +00:00
|
|
|
|
(unsigned int)WEXITSTATUS (w));
|
|
|
|
|
else
|
|
|
|
|
if (!batch_mode())
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("\nProgram exited normally.\n");
|
1991-03-28 16:26:26 +00:00
|
|
|
|
fflush (stdout);
|
|
|
|
|
target_mourn_inferior ();
|
|
|
|
|
#ifdef NO_SINGLE_STEP
|
|
|
|
|
one_stepped = 0;
|
|
|
|
|
#endif
|
|
|
|
|
stop_print_frame = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
else if (!WIFSTOPPED (w))
|
|
|
|
|
{
|
|
|
|
|
stop_print_frame = 0;
|
|
|
|
|
stop_signal = WTERMSIG (w);
|
|
|
|
|
target_terminal_ours (); /* Must do this before mourn anyway */
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
target_kill (); /* kill mourns as well */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
#ifdef PRINT_RANDOM_SIGNAL
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("\nProgram terminated: ");
|
1991-03-28 16:26:26 +00:00
|
|
|
|
PRINT_RANDOM_SIGNAL (stop_signal);
|
|
|
|
|
#else
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("\nProgram terminated with signal %d, %s\n",
|
|
|
|
|
stop_signal, safe_strsignal (stop_signal));
|
1991-03-28 16:26:26 +00:00
|
|
|
|
#endif
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("The inferior process no longer exists.\n");
|
1991-03-28 16:26:26 +00:00
|
|
|
|
fflush (stdout);
|
|
|
|
|
#ifdef NO_SINGLE_STEP
|
|
|
|
|
one_stepped = 0;
|
|
|
|
|
#endif
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef NO_SINGLE_STEP
|
|
|
|
|
if (one_stepped)
|
|
|
|
|
single_step (0); /* This actually cleans up the ss */
|
|
|
|
|
#endif /* NO_SINGLE_STEP */
|
|
|
|
|
|
* hppa-pinsn.c (print_insn): Improve handling of be and ble
branch targets to compute target address using const from previous
instruction if necessary.
* Add `Q' operator to print out bit position field various
instructions.
* hppah-nat.c: #include sys/param.h, and sys/user.h. General
cleanups, use new code from Utah.
* (store_inferior_registers): Update to new code from Utah.
* (initialize_kernel_u_addr): Re-enable decl of struct user u.
* (fetch_register): Clear out priv level when reading PCs.
* hppah-tdep.c: Get rid of gobs of KERNELDEBUG stuff.
* Remove decl of errno, #include wait.h and target.h.
* (frame_saved_pc): Check `flags' pseudo-register to see if we
were inside of a kernel call. If so, then PC is in a different
register. Also, mask out bottom two bits of all PCs so as not to
confuse higher level code.
* (push_dummy_frame): Create from #define in tm-hppa.h.
* (find_dummy_frame_regs): Update from Utah.
* (hp_pop_frame): Create from #define in tm-hppa.h.
* (hp_restore_pc_queue): New, from Utah.
* (hp_push_arguments): Big fixes from Utah.
* (pa_do_registers_info, pa_print_registers): Only print out fp
regs upon request.
* (skip_trampoline_code): New routine to deal with stubs that
live in nowhereland between callers and callees.
* i860-tdep.c: Remove decl of attach_flag.
* infrun.c (wait_for_inferior): Add new macro
INSTRUCTION_NULLIFIED, which can tell if the instruction pointed
at by PC will be nullified. If so, then step the target once more
so as to avoid confusing the user.
* (just before step_over_function:): Use stop_func_start, not
stop_pc when checking for the existance of line number info.
stop_func_start will reflect the proper address of the target
routine, not of the stub that we may be traversing to get there.
* tm-hppa.h: define SKIP_TRAMPOLINE_CODE and IN_SOLIB_TRAMPOLINE
to deal with the stubs that PA compilers sometimes stick between
callers and callees. Also, define FLAGS_REGNUM for access to the
`flags' pseudo-reg.
* (REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use
memcpy, not bcopy.
* (CANNOT_STORE_REGISTER): New from Utah. Says that we can't
write gr0, PC regs, and PSW!
* (FRAME_FIND_SAVED_REGS): Bug fixes from Utah.
* (PUSH_DUMMY_FRAME, POP_FRAME): Make into real routines in
hppah-nat.c.
* (CALL_DUMMY, FIX_CALL_DUMMY): Fixes from Utah.
* Define struct unwind_table_entry.
* valops.c (call_function_by_hand): Add another arg to
FIX_CALL_DUMMY (under #ifdef GDB_TARGET_IS_HPPA). Why is this
necessary?
1992-12-22 03:18:46 +00:00
|
|
|
|
/* If PC is pointing at a nullified instruction, then step beyond it so that
|
|
|
|
|
the user won't be confused when GDB appears to be ready to execute it. */
|
|
|
|
|
|
|
|
|
|
if (INSTRUCTION_NULLIFIED)
|
|
|
|
|
{
|
|
|
|
|
resume (1, 0);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
stop_pc = read_pc ();
|
|
|
|
|
set_current_frame ( create_new_frame (read_register (FP_REGNUM),
|
|
|
|
|
read_pc ()));
|
|
|
|
|
|
|
|
|
|
stop_frame_address = FRAME_FP (get_current_frame ());
|
|
|
|
|
stop_sp = read_register (SP_REGNUM);
|
|
|
|
|
stop_func_start = 0;
|
|
|
|
|
stop_func_name = 0;
|
|
|
|
|
/* Don't care about return value; stop_func_start and stop_func_name
|
|
|
|
|
will both be 0 if it doesn't work. */
|
1992-09-19 11:25:52 +00:00
|
|
|
|
find_pc_partial_function (stop_pc, &stop_func_name, &stop_func_start);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
stop_func_start += FUNCTION_START_OFFSET;
|
|
|
|
|
another_trap = 0;
|
|
|
|
|
bpstat_clear (&stop_bpstat);
|
|
|
|
|
stop_step = 0;
|
|
|
|
|
stop_stack_dummy = 0;
|
|
|
|
|
stop_print_frame = 1;
|
|
|
|
|
stop_step_resume_break = 0;
|
|
|
|
|
random_signal = 0;
|
|
|
|
|
stopped_by_random_signal = 0;
|
|
|
|
|
breakpoints_failed = 0;
|
|
|
|
|
|
|
|
|
|
/* Look at the cause of the stop, and decide what to do.
|
|
|
|
|
The alternatives are:
|
|
|
|
|
1) break; to really stop and return to the debugger,
|
|
|
|
|
2) drop through to start up again
|
|
|
|
|
(set another_trap to 1 to single step once)
|
|
|
|
|
3) set random_signal to 1, and the decision between 1 and 2
|
|
|
|
|
will be made according to the signal handling tables. */
|
|
|
|
|
|
|
|
|
|
stop_signal = WSTOPSIG (w);
|
|
|
|
|
|
|
|
|
|
/* First, distinguish signals caused by the debugger from signals
|
|
|
|
|
that have to do with the program's own actions.
|
|
|
|
|
Note that breakpoint insns may cause SIGTRAP or SIGILL
|
|
|
|
|
or SIGEMT, depending on the operating system version.
|
|
|
|
|
Here we detect when a SIGILL or SIGEMT is really a breakpoint
|
|
|
|
|
and change it to SIGTRAP. */
|
|
|
|
|
|
|
|
|
|
if (stop_signal == SIGTRAP
|
|
|
|
|
|| (breakpoints_inserted &&
|
|
|
|
|
(stop_signal == SIGILL
|
1992-06-23 00:25:11 +00:00
|
|
|
|
#ifdef SIGEMT
|
|
|
|
|
|| stop_signal == SIGEMT
|
|
|
|
|
#endif
|
|
|
|
|
))
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|| stop_soon_quietly)
|
|
|
|
|
{
|
|
|
|
|
if (stop_signal == SIGTRAP && stop_after_trap)
|
|
|
|
|
{
|
|
|
|
|
stop_print_frame = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (stop_soon_quietly)
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* Don't even think about breakpoints
|
|
|
|
|
if just proceeded over a breakpoint.
|
|
|
|
|
|
|
|
|
|
However, if we are trying to proceed over a breakpoint
|
|
|
|
|
and end up in sigtramp, then step_resume_break_address
|
|
|
|
|
will be set and we should check whether we've hit the
|
|
|
|
|
step breakpoint. */
|
|
|
|
|
if (stop_signal == SIGTRAP && trap_expected
|
1992-02-29 06:03:43 +00:00
|
|
|
|
&& step_resume_break_address == 0)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
bpstat_clear (&stop_bpstat);
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* See if there is a breakpoint at the current PC. */
|
|
|
|
|
#if DECR_PC_AFTER_BREAK
|
|
|
|
|
/* Notice the case of stepping through a jump
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
that lands just after a breakpoint.
|
1991-03-28 16:26:26 +00:00
|
|
|
|
Don't confuse that with hitting the breakpoint.
|
|
|
|
|
What we check for is that 1) stepping is going on
|
|
|
|
|
and 2) the pc before the last insn does not match
|
|
|
|
|
the address of the breakpoint before the current pc. */
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
if (prev_pc == stop_pc - DECR_PC_AFTER_BREAK
|
|
|
|
|
|| !step_range_end
|
|
|
|
|
|| step_resume_break_address
|
|
|
|
|
|| handling_longjmp /* FIXME */)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
#endif /* DECR_PC_AFTER_BREAK not zero */
|
|
|
|
|
{
|
|
|
|
|
/* See if we stopped at the special breakpoint for
|
|
|
|
|
stepping over a subroutine call. If both are zero,
|
|
|
|
|
this wasn't the reason for the stop. */
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
if (step_resume_break_address
|
|
|
|
|
&& stop_pc - DECR_PC_AFTER_BREAK
|
|
|
|
|
== step_resume_break_address)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
|
|
|
|
stop_step_resume_break = 1;
|
|
|
|
|
if (DECR_PC_AFTER_BREAK)
|
|
|
|
|
{
|
|
|
|
|
stop_pc -= DECR_PC_AFTER_BREAK;
|
|
|
|
|
write_register (PC_REGNUM, stop_pc);
|
|
|
|
|
pc_changed = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
stop_bpstat =
|
|
|
|
|
bpstat_stop_status (&stop_pc, stop_frame_address);
|
|
|
|
|
/* Following in case break condition called a
|
|
|
|
|
function. */
|
|
|
|
|
stop_print_frame = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (stop_signal == SIGTRAP)
|
|
|
|
|
random_signal
|
|
|
|
|
= !(bpstat_explains_signal (stop_bpstat)
|
|
|
|
|
|| trap_expected
|
|
|
|
|
|| stop_step_resume_break
|
|
|
|
|
|| PC_IN_CALL_DUMMY (stop_pc, stop_sp, stop_frame_address)
|
|
|
|
|
|| (step_range_end && !step_resume_break_address));
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
random_signal
|
|
|
|
|
= !(bpstat_explains_signal (stop_bpstat)
|
|
|
|
|
|| stop_step_resume_break
|
|
|
|
|
/* End of a stack dummy. Some systems (e.g. Sony
|
|
|
|
|
news) give another signal besides SIGTRAP,
|
|
|
|
|
so check here as well as above. */
|
1992-03-03 23:26:26 +00:00
|
|
|
|
|| PC_IN_CALL_DUMMY (stop_pc, stop_sp, stop_frame_address)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
);
|
|
|
|
|
if (!random_signal)
|
|
|
|
|
stop_signal = SIGTRAP;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
random_signal = 1;
|
|
|
|
|
|
|
|
|
|
/* For the program's own signals, act according to
|
|
|
|
|
the signal handling tables. */
|
|
|
|
|
|
|
|
|
|
if (random_signal)
|
|
|
|
|
{
|
|
|
|
|
/* Signal not for debugging purposes. */
|
|
|
|
|
int printed = 0;
|
|
|
|
|
|
|
|
|
|
stopped_by_random_signal = 1;
|
|
|
|
|
|
|
|
|
|
if (stop_signal >= NSIG
|
|
|
|
|
|| signal_print[stop_signal])
|
|
|
|
|
{
|
|
|
|
|
printed = 1;
|
|
|
|
|
target_terminal_ours_for_output ();
|
|
|
|
|
#ifdef PRINT_RANDOM_SIGNAL
|
|
|
|
|
PRINT_RANDOM_SIGNAL (stop_signal);
|
|
|
|
|
#else
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("\nProgram received signal %d, %s\n",
|
|
|
|
|
stop_signal, safe_strsignal (stop_signal));
|
1991-03-28 16:26:26 +00:00
|
|
|
|
#endif /* PRINT_RANDOM_SIGNAL */
|
|
|
|
|
fflush (stdout);
|
|
|
|
|
}
|
|
|
|
|
if (stop_signal >= NSIG
|
|
|
|
|
|| signal_stop[stop_signal])
|
|
|
|
|
break;
|
|
|
|
|
/* If not going to stop, give terminal back
|
|
|
|
|
if we took it away. */
|
|
|
|
|
else if (printed)
|
|
|
|
|
target_terminal_inferior ();
|
1991-09-28 11:26:43 +00:00
|
|
|
|
|
|
|
|
|
/* Note that virtually all the code below does `if !random_signal'.
|
|
|
|
|
Perhaps this code should end with a goto or continue. At least
|
|
|
|
|
one (now fixed) bug was caused by this -- a !random_signal was
|
|
|
|
|
missing in one of the tests below. */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* Handle cases caused by hitting a breakpoint. */
|
|
|
|
|
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
if (!random_signal)
|
|
|
|
|
if (bpstat_explains_signal (stop_bpstat))
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR jmp_buf_pc;
|
|
|
|
|
|
|
|
|
|
switch (stop_bpstat->breakpoint_at->type) /* FIXME */
|
|
|
|
|
{
|
|
|
|
|
/* If we hit the breakpoint at longjmp, disable it for the
|
|
|
|
|
duration of this command. Then, install a temporary
|
|
|
|
|
breakpoint at the target of the jmp_buf. */
|
|
|
|
|
case bp_longjmp:
|
|
|
|
|
disable_longjmp_breakpoint();
|
|
|
|
|
remove_breakpoints ();
|
|
|
|
|
breakpoints_inserted = 0;
|
|
|
|
|
if (!GET_LONGJMP_TARGET(&jmp_buf_pc)) goto keep_going;
|
|
|
|
|
|
|
|
|
|
/* Need to blow away step-resume breakpoint, as it
|
|
|
|
|
interferes with us */
|
|
|
|
|
remove_step_breakpoint ();
|
1992-02-29 06:03:43 +00:00
|
|
|
|
step_resume_break_address = 0;
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
stop_step_resume_break = 0;
|
|
|
|
|
|
|
|
|
|
#if 0 /* FIXME - Need to implement nested temporary breakpoints */
|
|
|
|
|
if (step_over_calls > 0)
|
|
|
|
|
set_longjmp_resume_breakpoint(jmp_buf_pc,
|
|
|
|
|
get_current_frame());
|
|
|
|
|
else
|
|
|
|
|
#endif /* 0 */
|
|
|
|
|
set_longjmp_resume_breakpoint(jmp_buf_pc, NULL);
|
|
|
|
|
handling_longjmp = 1; /* FIXME */
|
|
|
|
|
goto keep_going;
|
|
|
|
|
|
|
|
|
|
case bp_longjmp_resume:
|
|
|
|
|
remove_breakpoints ();
|
|
|
|
|
breakpoints_inserted = 0;
|
|
|
|
|
#if 0 /* FIXME - Need to implement nested temporary breakpoints */
|
|
|
|
|
if (step_over_calls
|
|
|
|
|
&& (stop_frame_address
|
|
|
|
|
INNER_THAN step_frame_address))
|
|
|
|
|
{
|
|
|
|
|
another_trap = 1;
|
|
|
|
|
goto keep_going;
|
|
|
|
|
}
|
|
|
|
|
#endif /* 0 */
|
|
|
|
|
disable_longjmp_breakpoint();
|
|
|
|
|
handling_longjmp = 0; /* FIXME */
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
fprintf(stderr, "Unknown breakpoint type %d\n",
|
|
|
|
|
stop_bpstat->breakpoint_at->type);
|
|
|
|
|
case bp_watchpoint:
|
|
|
|
|
case bp_breakpoint:
|
|
|
|
|
case bp_until:
|
|
|
|
|
case bp_finish:
|
|
|
|
|
/* Does a breakpoint want us to stop? */
|
|
|
|
|
if (bpstat_stop (stop_bpstat))
|
|
|
|
|
{
|
|
|
|
|
stop_print_frame = bpstat_should_print (stop_bpstat);
|
|
|
|
|
goto stop_stepping;
|
|
|
|
|
}
|
|
|
|
|
/* Otherwise, must remove breakpoints and single-step
|
|
|
|
|
to get us past the one we hit. */
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
remove_breakpoints ();
|
|
|
|
|
remove_step_breakpoint ();
|
|
|
|
|
breakpoints_inserted = 0;
|
|
|
|
|
another_trap = 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (stop_step_resume_break)
|
|
|
|
|
{
|
|
|
|
|
/* But if we have hit the step-resumption breakpoint,
|
|
|
|
|
remove it. It has done its job getting us here.
|
|
|
|
|
The sp test is to make sure that we don't get hung
|
|
|
|
|
up in recursive calls in functions without frame
|
|
|
|
|
pointers. If the stack pointer isn't outside of
|
|
|
|
|
where the breakpoint was set (within a routine to be
|
|
|
|
|
stepped over), we're in the middle of a recursive
|
|
|
|
|
call. Not true for reg window machines (sparc)
|
|
|
|
|
because the must change frames to call things and
|
|
|
|
|
the stack pointer doesn't have to change if it
|
|
|
|
|
the bp was set in a routine without a frame (pc can
|
|
|
|
|
be stored in some other window).
|
|
|
|
|
|
|
|
|
|
The removal of the sp test is to allow calls to
|
|
|
|
|
alloca. Nasty things were happening. Oh, well,
|
|
|
|
|
gdb can only handle one level deep of lack of
|
|
|
|
|
frame pointer. */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
Disable test for step_frame_address match so that we always stop even if the
|
|
|
|
|
frames don't match. Reason: if we hit the step_resume_breakpoint, there is
|
|
|
|
|
no way to temporarily disable it so that we can step past it. If we leave
|
|
|
|
|
the breakpoint in, then we loop forever repeatedly hitting, but never
|
|
|
|
|
getting past the breakpoint. This change keeps nexting over recursive
|
|
|
|
|
function calls from hanging gdb.
|
|
|
|
|
*/
|
|
|
|
|
#if 0
|
|
|
|
|
if (* step_frame_address == 0
|
|
|
|
|
|| (step_frame_address == stop_frame_address))
|
1992-04-01 19:46:14 +00:00
|
|
|
|
#endif
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
{
|
|
|
|
|
remove_step_breakpoint ();
|
|
|
|
|
step_resume_break_address = 0;
|
|
|
|
|
|
|
|
|
|
/* If were waiting for a trap, hitting the step_resume_break
|
|
|
|
|
doesn't count as getting it. */
|
|
|
|
|
if (trap_expected)
|
|
|
|
|
another_trap = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We come here if we hit a breakpoint but should not
|
|
|
|
|
stop for it. Possibly we also were stepping
|
|
|
|
|
and should stop for that. So fall through and
|
|
|
|
|
test for stepping. But, if not stepping,
|
|
|
|
|
do not stop. */
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* If this is the breakpoint at the end of a stack dummy,
|
|
|
|
|
just stop silently. */
|
1991-09-28 11:26:43 +00:00
|
|
|
|
if (!random_signal
|
|
|
|
|
&& PC_IN_CALL_DUMMY (stop_pc, stop_sp, stop_frame_address))
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
|
|
|
|
stop_print_frame = 0;
|
|
|
|
|
stop_stack_dummy = 1;
|
|
|
|
|
#ifdef HP_OS_BUG
|
|
|
|
|
trap_expected_after_continue = 1;
|
|
|
|
|
#endif
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (step_resume_break_address)
|
|
|
|
|
/* Having a step-resume breakpoint overrides anything
|
|
|
|
|
else having to do with stepping commands until
|
|
|
|
|
that breakpoint is reached. */
|
|
|
|
|
;
|
|
|
|
|
/* If stepping through a line, keep going if still within it. */
|
|
|
|
|
else if (!random_signal
|
|
|
|
|
&& step_range_end
|
|
|
|
|
&& stop_pc >= step_range_start
|
|
|
|
|
&& stop_pc < step_range_end
|
|
|
|
|
/* The step range might include the start of the
|
|
|
|
|
function, so if we are at the start of the
|
|
|
|
|
step range and either the stack or frame pointers
|
|
|
|
|
just changed, we've stepped outside */
|
|
|
|
|
&& !(stop_pc == step_range_start
|
|
|
|
|
&& stop_frame_address
|
|
|
|
|
&& (stop_sp INNER_THAN prev_sp
|
|
|
|
|
|| stop_frame_address != step_frame_address)))
|
|
|
|
|
{
|
1992-03-03 23:26:26 +00:00
|
|
|
|
;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We stepped out of the stepping range. See if that was due
|
|
|
|
|
to a subroutine call that we should proceed to the end of. */
|
|
|
|
|
else if (!random_signal && step_range_end)
|
|
|
|
|
{
|
|
|
|
|
if (stop_func_start)
|
|
|
|
|
{
|
|
|
|
|
prologue_pc = stop_func_start;
|
|
|
|
|
SKIP_PROLOGUE (prologue_pc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Did we just take a signal? */
|
|
|
|
|
if (IN_SIGTRAMP (stop_pc, stop_func_name)
|
|
|
|
|
&& !IN_SIGTRAMP (prev_pc, prev_func_name))
|
|
|
|
|
{
|
|
|
|
|
/* This code is needed at least in the following case:
|
|
|
|
|
The user types "next" and then a signal arrives (before
|
|
|
|
|
the "next" is done). */
|
|
|
|
|
/* We've just taken a signal; go until we are back to
|
|
|
|
|
the point where we took it and one more. */
|
|
|
|
|
step_resume_break_address = prev_pc;
|
|
|
|
|
step_resume_break_duplicate =
|
|
|
|
|
breakpoint_here_p (step_resume_break_address);
|
|
|
|
|
if (breakpoints_inserted)
|
|
|
|
|
insert_step_breakpoint ();
|
|
|
|
|
/* Make sure that the stepping range gets us past
|
|
|
|
|
that instruction. */
|
|
|
|
|
if (step_range_end == 1)
|
|
|
|
|
step_range_end = (step_range_start = prev_pc) + 1;
|
|
|
|
|
remove_breakpoints_on_following_step = 1;
|
1992-03-03 23:26:26 +00:00
|
|
|
|
goto save_pc;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* ==> See comments at top of file on this algorithm. <==*/
|
|
|
|
|
|
1992-03-29 22:33:35 +00:00
|
|
|
|
if ((stop_pc == stop_func_start
|
|
|
|
|
|| IN_SOLIB_TRAMPOLINE (stop_pc, stop_func_name))
|
|
|
|
|
&& (stop_func_start != prev_func_start
|
|
|
|
|
|| prologue_pc != stop_func_start
|
|
|
|
|
|| stop_sp != prev_sp))
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-03-03 23:26:26 +00:00
|
|
|
|
/* It's a subroutine call.
|
|
|
|
|
(0) If we are not stepping over any calls ("stepi"), we
|
|
|
|
|
just stop.
|
|
|
|
|
(1) If we're doing a "next", we want to continue through
|
|
|
|
|
the call ("step over the call").
|
|
|
|
|
(2) If we are in a function-call trampoline (a stub between
|
|
|
|
|
the calling routine and the real function), locate
|
|
|
|
|
the real function and change stop_func_start.
|
|
|
|
|
(3) If we're doing a "step", and there are no debug symbols
|
|
|
|
|
at the target of the call, we want to continue through
|
|
|
|
|
it ("step over the call").
|
|
|
|
|
(4) Otherwise, we want to stop soon, after the function
|
|
|
|
|
prologue ("step into the call"). */
|
|
|
|
|
|
|
|
|
|
if (step_over_calls == 0)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-03-03 23:26:26 +00:00
|
|
|
|
/* I presume that step_over_calls is only 0 when we're
|
|
|
|
|
supposed to be stepping at the assembly language level. */
|
|
|
|
|
stop_step = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
|
1992-03-03 23:26:26 +00:00
|
|
|
|
if (step_over_calls > 0)
|
|
|
|
|
goto step_over_function;
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
|
1992-03-03 23:26:26 +00:00
|
|
|
|
tmp = SKIP_TRAMPOLINE_CODE (stop_pc);
|
1992-03-15 01:09:14 +00:00
|
|
|
|
if (tmp != 0)
|
1992-03-03 23:26:26 +00:00
|
|
|
|
stop_func_start = tmp;
|
|
|
|
|
|
* hppa-pinsn.c (print_insn): Improve handling of be and ble
branch targets to compute target address using const from previous
instruction if necessary.
* Add `Q' operator to print out bit position field various
instructions.
* hppah-nat.c: #include sys/param.h, and sys/user.h. General
cleanups, use new code from Utah.
* (store_inferior_registers): Update to new code from Utah.
* (initialize_kernel_u_addr): Re-enable decl of struct user u.
* (fetch_register): Clear out priv level when reading PCs.
* hppah-tdep.c: Get rid of gobs of KERNELDEBUG stuff.
* Remove decl of errno, #include wait.h and target.h.
* (frame_saved_pc): Check `flags' pseudo-register to see if we
were inside of a kernel call. If so, then PC is in a different
register. Also, mask out bottom two bits of all PCs so as not to
confuse higher level code.
* (push_dummy_frame): Create from #define in tm-hppa.h.
* (find_dummy_frame_regs): Update from Utah.
* (hp_pop_frame): Create from #define in tm-hppa.h.
* (hp_restore_pc_queue): New, from Utah.
* (hp_push_arguments): Big fixes from Utah.
* (pa_do_registers_info, pa_print_registers): Only print out fp
regs upon request.
* (skip_trampoline_code): New routine to deal with stubs that
live in nowhereland between callers and callees.
* i860-tdep.c: Remove decl of attach_flag.
* infrun.c (wait_for_inferior): Add new macro
INSTRUCTION_NULLIFIED, which can tell if the instruction pointed
at by PC will be nullified. If so, then step the target once more
so as to avoid confusing the user.
* (just before step_over_function:): Use stop_func_start, not
stop_pc when checking for the existance of line number info.
stop_func_start will reflect the proper address of the target
routine, not of the stub that we may be traversing to get there.
* tm-hppa.h: define SKIP_TRAMPOLINE_CODE and IN_SOLIB_TRAMPOLINE
to deal with the stubs that PA compilers sometimes stick between
callers and callees. Also, define FLAGS_REGNUM for access to the
`flags' pseudo-reg.
* (REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use
memcpy, not bcopy.
* (CANNOT_STORE_REGISTER): New from Utah. Says that we can't
write gr0, PC regs, and PSW!
* (FRAME_FIND_SAVED_REGS): Bug fixes from Utah.
* (PUSH_DUMMY_FRAME, POP_FRAME): Make into real routines in
hppah-nat.c.
* (CALL_DUMMY, FIX_CALL_DUMMY): Fixes from Utah.
* Define struct unwind_table_entry.
* valops.c (call_function_by_hand): Add another arg to
FIX_CALL_DUMMY (under #ifdef GDB_TARGET_IS_HPPA). Why is this
necessary?
1992-12-22 03:18:46 +00:00
|
|
|
|
symtab = find_pc_symtab (stop_func_start);
|
* Makefile.in (VERSION): Bump to 4.7.4.
* Makefile.in (SFILES_MAINDIR): Add typeprint.c, c-typeprint.c,
m2-typeprint.c, c-valprint.c cp-valprint.c m2-valprint.c.
* Makefile.in (HFILES): Add valprint.h.
* Makefile.in (OBS): Add typeprint.o, c-typeprint.o,
m2-typeprint.o, c-valprint.o, cp-valprint.o m2-valprint.o.
* typeprint.c, typeprint.h: New files for language independent
type printing functions.
* c-typeprint.c, m2-typeprint.c: New files for language dependent
type printing functions and definitions.
* valprint.h: New include file for language independent value
printing definitions.
* c-valprint.c, cp-valprint.c, m2-valprint.c: New files for language
dependent value printing functions.
* c-exp.y (production ptype): Add range_type variable and use new
create_range_type function.
* c-exp.y (tokentab2, tokentab3), c-lang.c (c_op_print_tab),
infcmd.c (path_var_name), language.c (unk_op_print_tab),
m2-lang.c (m2_op_print_tab): Change from ANSI-obsolescent
"const static" to ANSI-conformant "static const".
* c-exp.y (c_create_fundamental_type): Remove unused nbytes.
* c-exp.y (c_language_defn, cplus_language_defn): Add c_print_type,
and c_val_print.
* c-lang.h (c_print_type, c_val_print): Add prototypes.
* coffread.c (decode_type): Add range_type variable and call to
new create_range_type function.
* complaints.c (complain): Remove unused val variable.
* complaints.c (_initialize_complaints): Make it void.
* convex-tdep.c (value_of_trapped_internalvar): Add range_type
variable and call new create_range_type function.
* defs.h (enum val_prettyprint): Move enum from value.h to here
so we can avoid having to include value.h just for prototypes that
need the enum (thanks ANSI).
* dwarfread.c (struct_type): Local anonymous_size variable is
only used if !BITS_BIG_ENDIAN.
* dwarfread.c (decode_subscript_data_item): Add rangetype
variable and call new create_range_type function.
* elfread.c (elf_symfile_read): Remove unused dbx and text_sect
variables.
* eval.c (evaluate_subexp): Remove unused local variable name
and the statement with no side effects that initializes it.
* expprint.c (print_subexp): Change local_printstr to
LA_PRINT_STRING.
* gdbtypes.c (create_range_type): New function that creates
a range type using code fragments from object file readers as
an example of what has to be initialized.
* gdbtypes.c (create_array_type): Removed index_type, low_bound,
and high_bound parameters, replaced with a single range_type
parameter. Change function body to use passed in range_type
rather than handcrafting one.
* gdbtypes.h (create_range_type): Add prototype.
* gdbtypes.h (create_array_type): Change prototype parameters.
* infrun.c (normal_stop): Remove unused local variables tem and c.
* infrun.c (hook_stop_stub): Return 0 rather than random value.
* language.c (unk_lang_print_type, unk_lang_val_print): Add
stub functions that call error if called.
* language.c (unknown_language_defn, auto_language_defn,
local_language_defn): Add initializers unk_lang_print_type and
unk_lang_val_print.
* language.h (struct language_defn): Reformat for larger
comments, add la_print_type and la_val_print members. Add
LA_PRINT_TYPE and LA_VAL_PRINT macros. Change local_printchar
to LA_PRINT_CHAR and local_printstr to LA_PRINT_STRING.
* m2-lang.c (m2_create_fundamental_type): Remove unused local
variable nbytes.
* m2-lang.c (m2_language_defn): Add initializers m2_print_type
and m2_val_print.
* m2-lang.h (m2_print_type, m2_val_print): Add prototypes.
* main.c (execute_command): Remove unused local variable cmdlines.
* main.c (echo_command), stabsread.c (read_type), printcmd.c
(clear_displays), symmisc.c (block_depth), values.c
(clear_value_history):
Make testing of truth value of assignment result explicit.
* mipsread.c (upgrade_type): Update FIXME to include future use
of create_range_type.
* printcmd.c (ptype_command, ptype_eval, whatis_command,
whatis_exp, maintenance_print_type): Move prototypes and functions
to new typeprint.c.
* printcmd.c (_initialize_printcmd): Move add_com calls for
ptype_command and whatis_command to new typeprint.c.
* ser-bsd.c (serial_open): Remove unused variable sgttyb.
* source.c (find_source_lines): Local variable c only used
when LSEEK_NOT_LINEAR is defined.
* stabsread.c (read_array_type): Use new create_range_type
function.
* stabsread.c (read_range_type): Add new index_type variable and
call new create_range_type function rather than handcrafting
range types.
* symmisc.c (type_print_1): Change usages to LA_PRINT_TYPE.
* symtab.c (typedef_print usages): Use c_typedef_print, renamed.
* symtab.c (type_print_base usages): Use c_type_print_base.
* symtab.c (type_print_varspec_prefix usages): Use
c_type_print_varspec_prefix.
* symtab.c (type_print_method_args usages): Use
cp_type_print_method_args.
* valprint.c: Completely ripped apart and the fragments used
to create c-valprint.c, cp-valprint.c, m2-valprint.c, and
valprint.h. Remaining stuff is language independent.
* value.h (struct fn_field): Forward declare for prototypes.
* value.h (type_print_1): Remove prototype.
* value.h (enum val_prettyprint): Moved to defs.h.
* value.h (typedef_print): Prototype renamed to c_typedef_print.
* value.h (baseclass_offset): Add prototype.
**** start-sanitize-chill ****
* Makefile.in (SFILES_MAINDIR): Add ch-typeprint.c, ch-valprint.c.
* Makefile.in (OBS): Add ch-typeprint.o, ch-valprint.o.
* ch-typeprint.c: New file for language dependent type printing.
* ch-valprint.c: New file for language dependent value printing.
* ch-exp.y (parse_number): Remove prototype and stub function.
* ch-exp.y (decode_integer_literal): Removed unused digits and
temp variables.
* ch-exp.y (convert_float): Completely ifdef out for now.
* ch-exp.y (tokentab2, tokentab3, tokentab4, tokentab5),
ch-lang.c (chill_op_print_tab):
Change from ANSI-obsolescent "const static" to ANSI-conformant
"static const".
* ch-exp.y (yylex): Add unhandled storage class enumeration
literals to switch statement for completeness.
* ch-lang.c (chill_create_fundamental_types): Remove unused
nbytes variable. Change dummy type to 2 bytes to match int.
Handle FT_VOID types gratuituously added to chill DWARF by
compiler. Change FT_CHAR case to generate an TYPE_CODE_CHAR
type rather than a one byte TYPE_CODE_INT type.
* ch-lang.c (chill_language_defn): Add chill_print_type and
chill_val_print.
* ch-lang.h (chill_print_type, chill_val_print): Add prototypes.
**** end-sanitize-chill ****
1992-12-18 20:21:32 +00:00
|
|
|
|
if (symtab && LINETABLE (symtab))
|
|
|
|
|
goto step_into_function;
|
1992-03-03 23:26:26 +00:00
|
|
|
|
|
|
|
|
|
step_over_function:
|
|
|
|
|
/* A subroutine call has happened. */
|
|
|
|
|
/* Set a special breakpoint after the return */
|
|
|
|
|
step_resume_break_address =
|
|
|
|
|
ADDR_BITS_REMOVE
|
|
|
|
|
(SAVED_PC_AFTER_CALL (get_current_frame ()));
|
|
|
|
|
step_resume_break_duplicate
|
|
|
|
|
= breakpoint_here_p (step_resume_break_address);
|
|
|
|
|
if (breakpoints_inserted)
|
|
|
|
|
insert_step_breakpoint ();
|
|
|
|
|
goto save_pc;
|
|
|
|
|
|
|
|
|
|
step_into_function:
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* Subroutine call with source code we should not step over.
|
|
|
|
|
Do step to the first line of code in it. */
|
1992-03-03 23:26:26 +00:00
|
|
|
|
SKIP_PROLOGUE (stop_func_start);
|
|
|
|
|
sal = find_pc_line (stop_func_start, 0);
|
|
|
|
|
/* Use the step_resume_break to step until
|
|
|
|
|
the end of the prologue, even if that involves jumps
|
|
|
|
|
(as it seems to on the vax under 4.2). */
|
|
|
|
|
/* If the prologue ends in the middle of a source line,
|
|
|
|
|
continue to the end of that source line.
|
|
|
|
|
Otherwise, just go to end of prologue. */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
#ifdef PROLOGUE_FIRSTLINE_OVERLAP
|
1992-03-03 23:26:26 +00:00
|
|
|
|
/* no, don't either. It skips any code that's
|
|
|
|
|
legitimately on the first line. */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
#else
|
1992-03-03 23:26:26 +00:00
|
|
|
|
if (sal.end && sal.pc != stop_func_start)
|
|
|
|
|
stop_func_start = sal.end;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
#endif
|
1992-03-03 23:26:26 +00:00
|
|
|
|
|
|
|
|
|
if (stop_func_start == stop_pc)
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
{
|
1992-03-03 23:26:26 +00:00
|
|
|
|
/* We are already there: stop now. */
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
stop_step = 1;
|
|
|
|
|
break;
|
1992-03-03 23:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
/* Put the step-breakpoint there and go until there. */
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
{
|
1992-03-03 23:26:26 +00:00
|
|
|
|
step_resume_break_address = stop_func_start;
|
|
|
|
|
|
|
|
|
|
step_resume_break_duplicate
|
|
|
|
|
= breakpoint_here_p (step_resume_break_address);
|
|
|
|
|
if (breakpoints_inserted)
|
|
|
|
|
insert_step_breakpoint ();
|
|
|
|
|
/* Do not specify what the fp should be when we stop
|
|
|
|
|
since on some machines the prologue
|
|
|
|
|
is where the new fp value is established. */
|
|
|
|
|
step_frame_address = 0;
|
|
|
|
|
/* And make sure stepping stops right away then. */
|
|
|
|
|
step_range_end = step_range_start;
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
}
|
1992-03-03 23:26:26 +00:00
|
|
|
|
goto save_pc;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
1992-03-03 23:26:26 +00:00
|
|
|
|
|
|
|
|
|
/* We've wandered out of the step range (but haven't done a
|
|
|
|
|
subroutine call or return). */
|
|
|
|
|
|
|
|
|
|
sal = find_pc_line(stop_pc, 0);
|
|
|
|
|
|
|
|
|
|
if (step_range_end == 1 || /* stepi or nexti */
|
|
|
|
|
sal.line == 0 || /* ...or no line # info */
|
|
|
|
|
(stop_pc == sal.pc /* ...or we're at the start */
|
|
|
|
|
&& current_line != sal.line)) { /* of a different line */
|
|
|
|
|
/* Stop because we're done stepping. */
|
|
|
|
|
stop_step = 1;
|
|
|
|
|
break;
|
|
|
|
|
} else {
|
|
|
|
|
/* We aren't done stepping, and we have line number info for $pc.
|
|
|
|
|
Optimize by setting the step_range for the line.
|
|
|
|
|
(We might not be in the original line, but if we entered a
|
|
|
|
|
new line in mid-statement, we continue stepping. This makes
|
|
|
|
|
things like for(;;) statements work better.) */
|
|
|
|
|
step_range_start = sal.pc;
|
|
|
|
|
step_range_end = sal.end;
|
|
|
|
|
goto save_pc;
|
|
|
|
|
}
|
1992-03-15 01:09:14 +00:00
|
|
|
|
/* We never fall through here */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
1992-03-03 23:26:26 +00:00
|
|
|
|
if (trap_expected
|
|
|
|
|
&& IN_SIGTRAMP (stop_pc, stop_func_name)
|
|
|
|
|
&& !IN_SIGTRAMP (prev_pc, prev_func_name))
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
|
|
|
|
/* What has happened here is that we have just stepped the inferior
|
|
|
|
|
with a signal (because it is a signal which shouldn't make
|
|
|
|
|
us stop), thus stepping into sigtramp.
|
|
|
|
|
|
|
|
|
|
So we need to set a step_resume_break_address breakpoint
|
|
|
|
|
and continue until we hit it, and then step. */
|
|
|
|
|
step_resume_break_address = prev_pc;
|
|
|
|
|
/* Always 1, I think, but it's probably easier to have
|
|
|
|
|
the step_resume_break as usual rather than trying to
|
|
|
|
|
re-use the breakpoint which is already there. */
|
|
|
|
|
step_resume_break_duplicate =
|
|
|
|
|
breakpoint_here_p (step_resume_break_address);
|
|
|
|
|
if (breakpoints_inserted)
|
|
|
|
|
insert_step_breakpoint ();
|
|
|
|
|
remove_breakpoints_on_following_step = 1;
|
|
|
|
|
another_trap = 1;
|
|
|
|
|
}
|
|
|
|
|
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
/* My apologies to the gods of structured programming. */
|
|
|
|
|
/* Come to this label when you need to resume the inferior. It's really much
|
|
|
|
|
cleaner at this time to do a goto than to try and figure out what the
|
|
|
|
|
if-else chain ought to look like!! */
|
|
|
|
|
|
|
|
|
|
keep_going:
|
|
|
|
|
|
1992-03-03 23:26:26 +00:00
|
|
|
|
save_pc:
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* Save the pc before execution, to compare with pc after stop. */
|
|
|
|
|
prev_pc = read_pc (); /* Might have been DECR_AFTER_BREAK */
|
|
|
|
|
prev_func_start = stop_func_start; /* Ok, since if DECR_PC_AFTER
|
|
|
|
|
BREAK is defined, the
|
|
|
|
|
original pc would not have
|
|
|
|
|
been at the start of a
|
|
|
|
|
function. */
|
|
|
|
|
prev_func_name = stop_func_name;
|
|
|
|
|
prev_sp = stop_sp;
|
|
|
|
|
|
|
|
|
|
/* If we did not do break;, it means we should keep
|
|
|
|
|
running the inferior and not return to debugger. */
|
|
|
|
|
|
|
|
|
|
if (trap_expected && stop_signal != SIGTRAP)
|
|
|
|
|
{
|
|
|
|
|
/* We took a signal (which we are supposed to pass through to
|
|
|
|
|
the inferior, else we'd have done a break above) and we
|
|
|
|
|
haven't yet gotten our trap. Simply continue. */
|
1991-04-24 19:17:58 +00:00
|
|
|
|
resume ((step_range_end && !step_resume_break_address)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|| (trap_expected && !step_resume_break_address)
|
|
|
|
|
|| bpstat_should_step (),
|
|
|
|
|
stop_signal);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Either the trap was not expected, but we are continuing
|
|
|
|
|
anyway (the user asked that this signal be passed to the
|
|
|
|
|
child)
|
|
|
|
|
-- or --
|
|
|
|
|
The signal was SIGTRAP, e.g. it was our signal, but we
|
|
|
|
|
decided we should resume from it.
|
|
|
|
|
|
|
|
|
|
We're going to run this baby now!
|
|
|
|
|
|
|
|
|
|
Insert breakpoints now, unless we are trying
|
|
|
|
|
to one-proceed past a breakpoint. */
|
|
|
|
|
/* If we've just finished a special step resume and we don't
|
|
|
|
|
want to hit a breakpoint, pull em out. */
|
|
|
|
|
if (!step_resume_break_address &&
|
|
|
|
|
remove_breakpoints_on_following_step)
|
|
|
|
|
{
|
|
|
|
|
remove_breakpoints_on_following_step = 0;
|
|
|
|
|
remove_breakpoints ();
|
|
|
|
|
breakpoints_inserted = 0;
|
|
|
|
|
}
|
|
|
|
|
else if (!breakpoints_inserted &&
|
1992-02-29 06:03:43 +00:00
|
|
|
|
(step_resume_break_address != 0 || !another_trap))
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
|
|
|
|
insert_step_breakpoint ();
|
|
|
|
|
breakpoints_failed = insert_breakpoints ();
|
|
|
|
|
if (breakpoints_failed)
|
|
|
|
|
break;
|
|
|
|
|
breakpoints_inserted = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
trap_expected = another_trap;
|
|
|
|
|
|
|
|
|
|
if (stop_signal == SIGTRAP)
|
|
|
|
|
stop_signal = 0;
|
|
|
|
|
|
|
|
|
|
#ifdef SHIFT_INST_REGS
|
|
|
|
|
/* I'm not sure when this following segment applies. I do know, now,
|
|
|
|
|
that we shouldn't rewrite the regs when we were stopped by a
|
|
|
|
|
random signal from the inferior process. */
|
|
|
|
|
|
1991-05-30 08:52:52 +00:00
|
|
|
|
if (!bpstat_explains_signal (stop_bpstat)
|
|
|
|
|
&& (stop_signal != SIGCLD)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
&& !stopped_by_random_signal)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR pc_contents = read_register (PC_REGNUM);
|
|
|
|
|
CORE_ADDR npc_contents = read_register (NPC_REGNUM);
|
|
|
|
|
if (pc_contents != npc_contents)
|
|
|
|
|
{
|
|
|
|
|
write_register (NNPC_REGNUM, npc_contents);
|
|
|
|
|
write_register (NPC_REGNUM, pc_contents);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif /* SHIFT_INST_REGS */
|
|
|
|
|
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
resume ((!step_resume_break_address
|
|
|
|
|
&& !handling_longjmp
|
|
|
|
|
&& (step_range_end
|
|
|
|
|
|| trap_expected))
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|| bpstat_should_step (),
|
|
|
|
|
stop_signal);
|
|
|
|
|
}
|
|
|
|
|
}
|
* infrun.c, infcmd.c, breakpoint.c, main.c, symfile.c,
breakpoint.h, tm-sun4os4.h, tm-sparc.h, sparc-tdep.c, tm-mips.h,
mips-tdep.h, tm-sun3.h, tm-68k.h, m68k-tdep.h: Add support for
stepping (and nexting) through longjmp(). Also, cleanup
breakpoint handling quite a bit by creating explicit breakpoint
types instead of using magic breakpoint numbers.
Makefile.in: Update version to 4.4.3
1992-02-22 09:06:58 +00:00
|
|
|
|
|
|
|
|
|
stop_stepping:
|
1991-03-28 16:26:26 +00:00
|
|
|
|
if (target_has_execution)
|
|
|
|
|
{
|
|
|
|
|
/* Assuming the inferior still exists, set these up for next
|
|
|
|
|
time, just like we did above if we didn't break out of the
|
|
|
|
|
loop. */
|
|
|
|
|
prev_pc = read_pc ();
|
|
|
|
|
prev_func_start = stop_func_start;
|
|
|
|
|
prev_func_name = stop_func_name;
|
|
|
|
|
prev_sp = stop_sp;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Here to return control to GDB when the inferior stops for real.
|
|
|
|
|
Print appropriate messages, remove breakpoints, give terminal our modes.
|
|
|
|
|
|
|
|
|
|
STOP_PRINT_FRAME nonzero means print the executing frame
|
|
|
|
|
(pc, function, args, file, line number and line text).
|
|
|
|
|
BREAKPOINTS_FAILED nonzero means stop was due to error
|
|
|
|
|
attempting to insert breakpoints. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
normal_stop ()
|
|
|
|
|
{
|
|
|
|
|
/* Make sure that the current_frame's pc is correct. This
|
|
|
|
|
is a correction for setting up the frame info before doing
|
|
|
|
|
DECR_PC_AFTER_BREAK */
|
|
|
|
|
if (target_has_execution)
|
|
|
|
|
(get_current_frame ())->pc = read_pc ();
|
|
|
|
|
|
|
|
|
|
if (breakpoints_failed)
|
|
|
|
|
{
|
|
|
|
|
target_terminal_ours_for_output ();
|
|
|
|
|
print_sys_errmsg ("ptrace", breakpoints_failed);
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("Stopped; cannot insert breakpoints.\n\
|
1991-03-28 16:26:26 +00:00
|
|
|
|
The same program may be running in another process.\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (target_has_execution)
|
|
|
|
|
remove_step_breakpoint ();
|
|
|
|
|
|
|
|
|
|
if (target_has_execution && breakpoints_inserted)
|
|
|
|
|
if (remove_breakpoints ())
|
|
|
|
|
{
|
|
|
|
|
target_terminal_ours_for_output ();
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("Cannot remove breakpoints because program is no longer writable.\n\
|
1991-03-28 16:26:26 +00:00
|
|
|
|
It might be running in another process.\n\
|
|
|
|
|
Further execution is probably impossible.\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
breakpoints_inserted = 0;
|
|
|
|
|
|
|
|
|
|
/* Delete the breakpoint we stopped at, if it wants to be deleted.
|
|
|
|
|
Delete any breakpoint that is to be deleted at the next stop. */
|
|
|
|
|
|
|
|
|
|
breakpoint_auto_delete (stop_bpstat);
|
|
|
|
|
|
|
|
|
|
/* If an auto-display called a function and that got a signal,
|
|
|
|
|
delete that auto-display to avoid an infinite recursion. */
|
|
|
|
|
|
|
|
|
|
if (stopped_by_random_signal)
|
|
|
|
|
disable_current_display ();
|
|
|
|
|
|
|
|
|
|
if (step_multi && stop_step)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
target_terminal_ours ();
|
|
|
|
|
|
NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
|
|
|
|
/* Look up the hook_stop and run it if it exists. */
|
|
|
|
|
|
|
|
|
|
if (stop_command->hook)
|
|
|
|
|
{
|
|
|
|
|
catch_errors (hook_stop_stub, (char *)stop_command->hook,
|
|
|
|
|
"Error while running hook_stop:\n");
|
|
|
|
|
}
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
if (!target_has_stack)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
/* Select innermost stack frame except on return from a stack dummy routine,
|
1991-09-17 00:25:07 +00:00
|
|
|
|
or if the program has exited. Print it without a level number if
|
|
|
|
|
we have changed functions or hit a breakpoint. Print source line
|
|
|
|
|
if we have one. */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
if (!stop_stack_dummy)
|
|
|
|
|
{
|
|
|
|
|
select_frame (get_current_frame (), 0);
|
|
|
|
|
|
|
|
|
|
if (stop_print_frame)
|
|
|
|
|
{
|
1991-09-17 00:25:07 +00:00
|
|
|
|
int source_only;
|
|
|
|
|
|
|
|
|
|
source_only = bpstat_print (stop_bpstat);
|
|
|
|
|
source_only = source_only ||
|
|
|
|
|
( stop_step
|
1991-03-28 16:26:26 +00:00
|
|
|
|
&& step_frame_address == stop_frame_address
|
1991-09-17 00:25:07 +00:00
|
|
|
|
&& step_start_function == find_pc_function (stop_pc));
|
|
|
|
|
|
|
|
|
|
print_stack_frame (selected_frame, -1, source_only? -1: 1);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
/* Display the auto-display expressions. */
|
|
|
|
|
do_displays ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Save the function value return registers, if we care.
|
|
|
|
|
We might be about to restore their previous contents. */
|
|
|
|
|
if (proceed_to_finish)
|
|
|
|
|
read_register_bytes (0, stop_registers, REGISTER_BYTES);
|
|
|
|
|
|
|
|
|
|
if (stop_stack_dummy)
|
|
|
|
|
{
|
|
|
|
|
/* Pop the empty frame that contains the stack dummy.
|
|
|
|
|
POP_FRAME ends with a setting of the current frame, so we
|
|
|
|
|
can use that next. */
|
|
|
|
|
POP_FRAME;
|
|
|
|
|
select_frame (get_current_frame (), 0);
|
|
|
|
|
}
|
|
|
|
|
}
|
NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
hook_stop_stub (cmd)
|
|
|
|
|
char *cmd;
|
|
|
|
|
{
|
|
|
|
|
execute_user_command ((struct cmd_list_element *)cmd, 0);
|
* Makefile.in (VERSION): Bump to 4.7.4.
* Makefile.in (SFILES_MAINDIR): Add typeprint.c, c-typeprint.c,
m2-typeprint.c, c-valprint.c cp-valprint.c m2-valprint.c.
* Makefile.in (HFILES): Add valprint.h.
* Makefile.in (OBS): Add typeprint.o, c-typeprint.o,
m2-typeprint.o, c-valprint.o, cp-valprint.o m2-valprint.o.
* typeprint.c, typeprint.h: New files for language independent
type printing functions.
* c-typeprint.c, m2-typeprint.c: New files for language dependent
type printing functions and definitions.
* valprint.h: New include file for language independent value
printing definitions.
* c-valprint.c, cp-valprint.c, m2-valprint.c: New files for language
dependent value printing functions.
* c-exp.y (production ptype): Add range_type variable and use new
create_range_type function.
* c-exp.y (tokentab2, tokentab3), c-lang.c (c_op_print_tab),
infcmd.c (path_var_name), language.c (unk_op_print_tab),
m2-lang.c (m2_op_print_tab): Change from ANSI-obsolescent
"const static" to ANSI-conformant "static const".
* c-exp.y (c_create_fundamental_type): Remove unused nbytes.
* c-exp.y (c_language_defn, cplus_language_defn): Add c_print_type,
and c_val_print.
* c-lang.h (c_print_type, c_val_print): Add prototypes.
* coffread.c (decode_type): Add range_type variable and call to
new create_range_type function.
* complaints.c (complain): Remove unused val variable.
* complaints.c (_initialize_complaints): Make it void.
* convex-tdep.c (value_of_trapped_internalvar): Add range_type
variable and call new create_range_type function.
* defs.h (enum val_prettyprint): Move enum from value.h to here
so we can avoid having to include value.h just for prototypes that
need the enum (thanks ANSI).
* dwarfread.c (struct_type): Local anonymous_size variable is
only used if !BITS_BIG_ENDIAN.
* dwarfread.c (decode_subscript_data_item): Add rangetype
variable and call new create_range_type function.
* elfread.c (elf_symfile_read): Remove unused dbx and text_sect
variables.
* eval.c (evaluate_subexp): Remove unused local variable name
and the statement with no side effects that initializes it.
* expprint.c (print_subexp): Change local_printstr to
LA_PRINT_STRING.
* gdbtypes.c (create_range_type): New function that creates
a range type using code fragments from object file readers as
an example of what has to be initialized.
* gdbtypes.c (create_array_type): Removed index_type, low_bound,
and high_bound parameters, replaced with a single range_type
parameter. Change function body to use passed in range_type
rather than handcrafting one.
* gdbtypes.h (create_range_type): Add prototype.
* gdbtypes.h (create_array_type): Change prototype parameters.
* infrun.c (normal_stop): Remove unused local variables tem and c.
* infrun.c (hook_stop_stub): Return 0 rather than random value.
* language.c (unk_lang_print_type, unk_lang_val_print): Add
stub functions that call error if called.
* language.c (unknown_language_defn, auto_language_defn,
local_language_defn): Add initializers unk_lang_print_type and
unk_lang_val_print.
* language.h (struct language_defn): Reformat for larger
comments, add la_print_type and la_val_print members. Add
LA_PRINT_TYPE and LA_VAL_PRINT macros. Change local_printchar
to LA_PRINT_CHAR and local_printstr to LA_PRINT_STRING.
* m2-lang.c (m2_create_fundamental_type): Remove unused local
variable nbytes.
* m2-lang.c (m2_language_defn): Add initializers m2_print_type
and m2_val_print.
* m2-lang.h (m2_print_type, m2_val_print): Add prototypes.
* main.c (execute_command): Remove unused local variable cmdlines.
* main.c (echo_command), stabsread.c (read_type), printcmd.c
(clear_displays), symmisc.c (block_depth), values.c
(clear_value_history):
Make testing of truth value of assignment result explicit.
* mipsread.c (upgrade_type): Update FIXME to include future use
of create_range_type.
* printcmd.c (ptype_command, ptype_eval, whatis_command,
whatis_exp, maintenance_print_type): Move prototypes and functions
to new typeprint.c.
* printcmd.c (_initialize_printcmd): Move add_com calls for
ptype_command and whatis_command to new typeprint.c.
* ser-bsd.c (serial_open): Remove unused variable sgttyb.
* source.c (find_source_lines): Local variable c only used
when LSEEK_NOT_LINEAR is defined.
* stabsread.c (read_array_type): Use new create_range_type
function.
* stabsread.c (read_range_type): Add new index_type variable and
call new create_range_type function rather than handcrafting
range types.
* symmisc.c (type_print_1): Change usages to LA_PRINT_TYPE.
* symtab.c (typedef_print usages): Use c_typedef_print, renamed.
* symtab.c (type_print_base usages): Use c_type_print_base.
* symtab.c (type_print_varspec_prefix usages): Use
c_type_print_varspec_prefix.
* symtab.c (type_print_method_args usages): Use
cp_type_print_method_args.
* valprint.c: Completely ripped apart and the fragments used
to create c-valprint.c, cp-valprint.c, m2-valprint.c, and
valprint.h. Remaining stuff is language independent.
* value.h (struct fn_field): Forward declare for prototypes.
* value.h (type_print_1): Remove prototype.
* value.h (enum val_prettyprint): Moved to defs.h.
* value.h (typedef_print): Prototype renamed to c_typedef_print.
* value.h (baseclass_offset): Add prototype.
**** start-sanitize-chill ****
* Makefile.in (SFILES_MAINDIR): Add ch-typeprint.c, ch-valprint.c.
* Makefile.in (OBS): Add ch-typeprint.o, ch-valprint.o.
* ch-typeprint.c: New file for language dependent type printing.
* ch-valprint.c: New file for language dependent value printing.
* ch-exp.y (parse_number): Remove prototype and stub function.
* ch-exp.y (decode_integer_literal): Removed unused digits and
temp variables.
* ch-exp.y (convert_float): Completely ifdef out for now.
* ch-exp.y (tokentab2, tokentab3, tokentab4, tokentab5),
ch-lang.c (chill_op_print_tab):
Change from ANSI-obsolescent "const static" to ANSI-conformant
"static const".
* ch-exp.y (yylex): Add unhandled storage class enumeration
literals to switch statement for completeness.
* ch-lang.c (chill_create_fundamental_types): Remove unused
nbytes variable. Change dummy type to 2 bytes to match int.
Handle FT_VOID types gratuituously added to chill DWARF by
compiler. Change FT_CHAR case to generate an TYPE_CODE_CHAR
type rather than a one byte TYPE_CODE_INT type.
* ch-lang.c (chill_language_defn): Add chill_print_type and
chill_val_print.
* ch-lang.h (chill_print_type, chill_val_print): Add prototypes.
**** end-sanitize-chill ****
1992-12-18 20:21:32 +00:00
|
|
|
|
return (0);
|
NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
|
|
|
|
}
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
insert_step_breakpoint ()
|
|
|
|
|
{
|
|
|
|
|
if (step_resume_break_address && !step_resume_break_duplicate)
|
|
|
|
|
target_insert_breakpoint (step_resume_break_address,
|
|
|
|
|
step_resume_break_shadow);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
remove_step_breakpoint ()
|
|
|
|
|
{
|
|
|
|
|
if (step_resume_break_address && !step_resume_break_duplicate)
|
|
|
|
|
target_remove_breakpoint (step_resume_break_address,
|
|
|
|
|
step_resume_break_shadow);
|
|
|
|
|
}
|
|
|
|
|
|
1992-04-01 19:46:14 +00:00
|
|
|
|
int signal_stop_state (signo)
|
|
|
|
|
int signo;
|
|
|
|
|
{
|
|
|
|
|
return ((signo >= 0 && signo < NSIG) ? signal_stop[signo] : 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int signal_print_state (signo)
|
|
|
|
|
int signo;
|
|
|
|
|
{
|
|
|
|
|
return ((signo >= 0 && signo < NSIG) ? signal_print[signo] : 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int signal_pass_state (signo)
|
|
|
|
|
int signo;
|
|
|
|
|
{
|
|
|
|
|
return ((signo >= 0 && signo < NSIG) ? signal_program[signo] : 0);
|
|
|
|
|
}
|
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
static void
|
|
|
|
|
sig_print_header ()
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("Signal\t\tStop\tPrint\tPass to program\tDescription\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
sig_print_info (number)
|
|
|
|
|
int number;
|
|
|
|
|
{
|
1992-06-23 00:25:11 +00:00
|
|
|
|
char *name;
|
|
|
|
|
|
|
|
|
|
if ((name = strsigno (number)) == NULL)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
printf_filtered ("%d\t\t", number);
|
|
|
|
|
else
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("%s (%d)\t", name, number);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
printf_filtered ("%s\t", signal_stop[number] ? "Yes" : "No");
|
|
|
|
|
printf_filtered ("%s\t", signal_print[number] ? "Yes" : "No");
|
|
|
|
|
printf_filtered ("%s\t\t", signal_program[number] ? "Yes" : "No");
|
1992-06-23 00:25:11 +00:00
|
|
|
|
printf_filtered ("%s\n", safe_strsignal (number));
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Specify how various signals in the inferior should be handled. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
handle_command (args, from_tty)
|
|
|
|
|
char *args;
|
|
|
|
|
int from_tty;
|
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
char **argv;
|
|
|
|
|
int digits, wordlen;
|
|
|
|
|
int sigfirst, signum, siglast;
|
|
|
|
|
int allsigs;
|
|
|
|
|
int nsigs;
|
|
|
|
|
unsigned char *sigs;
|
|
|
|
|
struct cleanup *old_chain;
|
|
|
|
|
|
|
|
|
|
if (args == NULL)
|
|
|
|
|
{
|
|
|
|
|
error_no_arg ("signal to handle");
|
|
|
|
|
}
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
1992-09-19 11:25:52 +00:00
|
|
|
|
/* Allocate and zero an array of flags for which signals to handle. */
|
|
|
|
|
|
|
|
|
|
nsigs = signo_max () + 1;
|
|
|
|
|
sigs = (unsigned char *) alloca (nsigs);
|
|
|
|
|
memset (sigs, 0, nsigs);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
1992-09-19 11:25:52 +00:00
|
|
|
|
/* Break the command line up into args. */
|
|
|
|
|
|
|
|
|
|
argv = buildargv (args);
|
|
|
|
|
if (argv == NULL)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
nomem (0);
|
|
|
|
|
}
|
|
|
|
|
old_chain = make_cleanup (freeargv, (char *) argv);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
1992-09-19 11:25:52 +00:00
|
|
|
|
/* Walk through the args, looking for signal numbers, signal names, and
|
|
|
|
|
actions. Signal numbers and signal names may be interspersed with
|
|
|
|
|
actions, with the actions being performed for all signals cumulatively
|
|
|
|
|
specified. Signal ranges can be specified as <LOW>-<HIGH>. */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
1992-09-19 11:25:52 +00:00
|
|
|
|
while (*argv != NULL)
|
|
|
|
|
{
|
|
|
|
|
wordlen = strlen (*argv);
|
|
|
|
|
for (digits = 0; isdigit ((*argv)[digits]); digits++) {;}
|
|
|
|
|
allsigs = 0;
|
|
|
|
|
sigfirst = siglast = -1;
|
|
|
|
|
|
|
|
|
|
if (wordlen >= 1 && !strncmp (*argv, "all", wordlen))
|
|
|
|
|
{
|
|
|
|
|
/* Apply action to all signals except those used by the
|
|
|
|
|
debugger. Silently skip those. */
|
|
|
|
|
allsigs = 1;
|
|
|
|
|
sigfirst = 0;
|
|
|
|
|
siglast = nsigs - 1;
|
|
|
|
|
}
|
|
|
|
|
else if (wordlen >= 1 && !strncmp (*argv, "stop", wordlen))
|
|
|
|
|
{
|
|
|
|
|
SET_SIGS (nsigs, sigs, signal_stop);
|
|
|
|
|
SET_SIGS (nsigs, sigs, signal_print);
|
|
|
|
|
}
|
|
|
|
|
else if (wordlen >= 1 && !strncmp (*argv, "ignore", wordlen))
|
|
|
|
|
{
|
|
|
|
|
UNSET_SIGS (nsigs, sigs, signal_program);
|
|
|
|
|
}
|
|
|
|
|
else if (wordlen >= 2 && !strncmp (*argv, "print", wordlen))
|
|
|
|
|
{
|
|
|
|
|
SET_SIGS (nsigs, sigs, signal_print);
|
|
|
|
|
}
|
|
|
|
|
else if (wordlen >= 2 && !strncmp (*argv, "pass", wordlen))
|
|
|
|
|
{
|
|
|
|
|
SET_SIGS (nsigs, sigs, signal_program);
|
|
|
|
|
}
|
|
|
|
|
else if (wordlen >= 3 && !strncmp (*argv, "nostop", wordlen))
|
|
|
|
|
{
|
|
|
|
|
UNSET_SIGS (nsigs, sigs, signal_stop);
|
|
|
|
|
}
|
|
|
|
|
else if (wordlen >= 3 && !strncmp (*argv, "noignore", wordlen))
|
|
|
|
|
{
|
|
|
|
|
SET_SIGS (nsigs, sigs, signal_program);
|
|
|
|
|
}
|
|
|
|
|
else if (wordlen >= 4 && !strncmp (*argv, "noprint", wordlen))
|
|
|
|
|
{
|
|
|
|
|
UNSET_SIGS (nsigs, sigs, signal_print);
|
|
|
|
|
UNSET_SIGS (nsigs, sigs, signal_stop);
|
|
|
|
|
}
|
|
|
|
|
else if (wordlen >= 4 && !strncmp (*argv, "nopass", wordlen))
|
|
|
|
|
{
|
|
|
|
|
UNSET_SIGS (nsigs, sigs, signal_program);
|
|
|
|
|
}
|
|
|
|
|
else if (digits > 0)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
sigfirst = siglast = atoi (*argv);
|
|
|
|
|
if ((*argv)[digits] == '-')
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
siglast = atoi ((*argv) + digits + 1);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
1992-09-19 11:25:52 +00:00
|
|
|
|
if (sigfirst > siglast)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
/* Bet he didn't figure we'd think of this case... */
|
|
|
|
|
signum = sigfirst;
|
|
|
|
|
sigfirst = siglast;
|
|
|
|
|
siglast = signum;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
1992-09-19 11:25:52 +00:00
|
|
|
|
if (sigfirst < 0 || sigfirst >= nsigs)
|
|
|
|
|
{
|
|
|
|
|
error ("Signal %d not in range 0-%d", sigfirst, nsigs - 1);
|
|
|
|
|
}
|
|
|
|
|
if (siglast < 0 || siglast >= nsigs)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
error ("Signal %d not in range 0-%d", siglast, nsigs - 1);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
1992-09-19 11:25:52 +00:00
|
|
|
|
else if ((signum = strtosigno (*argv)) != 0)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
sigfirst = siglast = signum;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
1992-09-19 11:25:52 +00:00
|
|
|
|
else
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
/* Not a number and not a recognized flag word => complain. */
|
|
|
|
|
error ("Unrecognized or ambiguous flag word: \"%s\".", *argv);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
1992-09-19 11:25:52 +00:00
|
|
|
|
|
|
|
|
|
/* If any signal numbers or symbol names were found, set flags for
|
|
|
|
|
which signals to apply actions to. */
|
|
|
|
|
|
|
|
|
|
for (signum = sigfirst; signum >= 0 && signum <= siglast; signum++)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
1992-09-19 11:25:52 +00:00
|
|
|
|
switch (signum)
|
|
|
|
|
{
|
|
|
|
|
case SIGTRAP:
|
|
|
|
|
case SIGINT:
|
|
|
|
|
if (!allsigs && !sigs[signum])
|
|
|
|
|
{
|
|
|
|
|
if (query ("%s is used by the debugger.\nAre you sure you want to change it? ", strsigno (signum)))
|
|
|
|
|
{
|
|
|
|
|
sigs[signum] = 1;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
printf ("Not confirmed, unchanged.\n");
|
|
|
|
|
fflush (stdout);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
sigs[signum] = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
1992-09-19 11:25:52 +00:00
|
|
|
|
argv++;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
|
|
|
|
target_notice_signals();
|
1992-04-01 19:46:14 +00:00
|
|
|
|
|
1991-03-28 16:26:26 +00:00
|
|
|
|
if (from_tty)
|
|
|
|
|
{
|
|
|
|
|
/* Show the results. */
|
|
|
|
|
sig_print_header ();
|
1992-09-19 11:25:52 +00:00
|
|
|
|
for (signum = 0; signum < nsigs; signum++)
|
|
|
|
|
{
|
|
|
|
|
if (sigs[signum])
|
|
|
|
|
{
|
|
|
|
|
sig_print_info (signum);
|
|
|
|
|
}
|
|
|
|
|
}
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
1992-09-19 11:25:52 +00:00
|
|
|
|
|
|
|
|
|
do_cleanups (old_chain);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Print current contents of the tables set by the handle command. */
|
|
|
|
|
|
|
|
|
|
static void
|
1992-06-23 00:25:11 +00:00
|
|
|
|
signals_info (signum_exp, from_tty)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
char *signum_exp;
|
1992-06-23 00:25:11 +00:00
|
|
|
|
int from_tty;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
|
|
|
|
register int i;
|
|
|
|
|
sig_print_header ();
|
|
|
|
|
|
|
|
|
|
if (signum_exp)
|
|
|
|
|
{
|
|
|
|
|
/* First see if this is a symbol name. */
|
1992-06-23 00:25:11 +00:00
|
|
|
|
i = strtosigno (signum_exp);
|
|
|
|
|
if (i == 0)
|
1991-03-28 16:26:26 +00:00
|
|
|
|
{
|
|
|
|
|
/* Nope, maybe it's an address which evaluates to a signal
|
|
|
|
|
number. */
|
|
|
|
|
i = parse_and_eval_address (signum_exp);
|
|
|
|
|
if (i >= NSIG || i < 0)
|
|
|
|
|
error ("Signal number out of bounds.");
|
|
|
|
|
}
|
|
|
|
|
sig_print_info (i);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
printf_filtered ("\n");
|
|
|
|
|
for (i = 0; i < NSIG; i++)
|
|
|
|
|
{
|
|
|
|
|
QUIT;
|
|
|
|
|
|
|
|
|
|
sig_print_info (i);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
printf_filtered ("\nUse the \"handle\" command to change these tables.\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Save all of the information associated with the inferior<==>gdb
|
|
|
|
|
connection. INF_STATUS is a pointer to a "struct inferior_status"
|
|
|
|
|
(defined in inferior.h). */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
save_inferior_status (inf_status, restore_stack_info)
|
|
|
|
|
struct inferior_status *inf_status;
|
|
|
|
|
int restore_stack_info;
|
|
|
|
|
{
|
|
|
|
|
inf_status->pc_changed = pc_changed;
|
|
|
|
|
inf_status->stop_signal = stop_signal;
|
|
|
|
|
inf_status->stop_pc = stop_pc;
|
|
|
|
|
inf_status->stop_frame_address = stop_frame_address;
|
|
|
|
|
inf_status->stop_step = stop_step;
|
|
|
|
|
inf_status->stop_stack_dummy = stop_stack_dummy;
|
|
|
|
|
inf_status->stopped_by_random_signal = stopped_by_random_signal;
|
|
|
|
|
inf_status->trap_expected = trap_expected;
|
|
|
|
|
inf_status->step_range_start = step_range_start;
|
|
|
|
|
inf_status->step_range_end = step_range_end;
|
|
|
|
|
inf_status->step_frame_address = step_frame_address;
|
|
|
|
|
inf_status->step_over_calls = step_over_calls;
|
|
|
|
|
inf_status->step_resume_break_address = step_resume_break_address;
|
|
|
|
|
inf_status->stop_after_trap = stop_after_trap;
|
|
|
|
|
inf_status->stop_soon_quietly = stop_soon_quietly;
|
|
|
|
|
/* Save original bpstat chain here; replace it with copy of chain.
|
|
|
|
|
If caller's caller is walking the chain, they'll be happier if we
|
|
|
|
|
hand them back the original chain when restore_i_s is called. */
|
|
|
|
|
inf_status->stop_bpstat = stop_bpstat;
|
|
|
|
|
stop_bpstat = bpstat_copy (stop_bpstat);
|
|
|
|
|
inf_status->breakpoint_proceeded = breakpoint_proceeded;
|
|
|
|
|
inf_status->restore_stack_info = restore_stack_info;
|
|
|
|
|
inf_status->proceed_to_finish = proceed_to_finish;
|
|
|
|
|
|
1992-09-19 11:25:52 +00:00
|
|
|
|
memcpy (inf_status->stop_registers, stop_registers, REGISTER_BYTES);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
record_selected_frame (&(inf_status->selected_frame_address),
|
|
|
|
|
&(inf_status->selected_level));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
restore_inferior_status (inf_status)
|
|
|
|
|
struct inferior_status *inf_status;
|
|
|
|
|
{
|
|
|
|
|
FRAME fid;
|
|
|
|
|
int level = inf_status->selected_level;
|
|
|
|
|
|
|
|
|
|
pc_changed = inf_status->pc_changed;
|
|
|
|
|
stop_signal = inf_status->stop_signal;
|
|
|
|
|
stop_pc = inf_status->stop_pc;
|
|
|
|
|
stop_frame_address = inf_status->stop_frame_address;
|
|
|
|
|
stop_step = inf_status->stop_step;
|
|
|
|
|
stop_stack_dummy = inf_status->stop_stack_dummy;
|
|
|
|
|
stopped_by_random_signal = inf_status->stopped_by_random_signal;
|
|
|
|
|
trap_expected = inf_status->trap_expected;
|
|
|
|
|
step_range_start = inf_status->step_range_start;
|
|
|
|
|
step_range_end = inf_status->step_range_end;
|
|
|
|
|
step_frame_address = inf_status->step_frame_address;
|
|
|
|
|
step_over_calls = inf_status->step_over_calls;
|
|
|
|
|
step_resume_break_address = inf_status->step_resume_break_address;
|
|
|
|
|
stop_after_trap = inf_status->stop_after_trap;
|
|
|
|
|
stop_soon_quietly = inf_status->stop_soon_quietly;
|
|
|
|
|
bpstat_clear (&stop_bpstat);
|
|
|
|
|
stop_bpstat = inf_status->stop_bpstat;
|
|
|
|
|
breakpoint_proceeded = inf_status->breakpoint_proceeded;
|
|
|
|
|
proceed_to_finish = inf_status->proceed_to_finish;
|
|
|
|
|
|
1992-09-19 11:25:52 +00:00
|
|
|
|
memcpy (stop_registers, inf_status->stop_registers, REGISTER_BYTES);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
/* The inferior can be gone if the user types "print exit(0)"
|
|
|
|
|
(and perhaps other times). */
|
|
|
|
|
if (target_has_stack && inf_status->restore_stack_info)
|
|
|
|
|
{
|
|
|
|
|
fid = find_relative_frame (get_current_frame (),
|
|
|
|
|
&level);
|
|
|
|
|
|
1991-04-22 20:08:53 +00:00
|
|
|
|
/* If inf_status->selected_frame_address is NULL, there was no
|
|
|
|
|
previously selected frame. */
|
1991-03-28 16:26:26 +00:00
|
|
|
|
if (fid == 0 ||
|
|
|
|
|
FRAME_FP (fid) != inf_status->selected_frame_address ||
|
|
|
|
|
level != 0)
|
|
|
|
|
{
|
1992-03-03 23:26:26 +00:00
|
|
|
|
#if 1
|
1991-03-28 16:26:26 +00:00
|
|
|
|
/* I'm not sure this error message is a good idea. I have
|
|
|
|
|
only seen it occur after "Can't continue previously
|
|
|
|
|
requested operation" (we get called from do_cleanups), in
|
|
|
|
|
which case it just adds insult to injury (one confusing
|
|
|
|
|
error message after another. Besides which, does the
|
|
|
|
|
user really care if we can't restore the previously
|
|
|
|
|
selected frame? */
|
|
|
|
|
fprintf (stderr, "Unable to restore previously selected frame.\n");
|
|
|
|
|
#endif
|
|
|
|
|
select_frame (get_current_frame (), 0);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
select_frame (fid, inf_status->selected_level);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
_initialize_infrun ()
|
|
|
|
|
{
|
|
|
|
|
register int i;
|
1992-06-23 00:25:11 +00:00
|
|
|
|
register int numsigs;
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
add_info ("signals", signals_info,
|
|
|
|
|
"What debugger does when program gets various signals.\n\
|
|
|
|
|
Specify a signal number as argument to print info on that signal only.");
|
1992-09-22 02:33:11 +00:00
|
|
|
|
add_info_alias ("handle", "signals", 0);
|
1991-03-28 16:26:26 +00:00
|
|
|
|
|
|
|
|
|
add_com ("handle", class_run, handle_command,
|
|
|
|
|
"Specify how to handle a signal.\n\
|
1992-09-19 11:25:52 +00:00
|
|
|
|
Args are signal numbers and actions to apply to those signals.\n\
|
|
|
|
|
Signal numbers may be numeric (ex. 11) or symbolic (ex. SIGSEGV).\n\
|
|
|
|
|
Numeric ranges may be specified with the form LOW-HIGH (ex. 14-21).\n\
|
|
|
|
|
The special arg \"all\" is recognized to mean all signals except those\n\
|
|
|
|
|
used by the debugger, typically SIGTRAP and SIGINT.\n\
|
|
|
|
|
Recognized actions include \"stop\", \"nostop\", \"print\", \"noprint\",\n\
|
|
|
|
|
\"pass\", \"nopass\", \"ignore\", or \"noignore\".\n\
|
1991-03-28 16:26:26 +00:00
|
|
|
|
Stop means reenter debugger if this signal happens (implies print).\n\
|
1992-09-19 11:25:52 +00:00
|
|
|
|
Print means print a message if this signal happens.\n\
|
1991-03-28 16:26:26 +00:00
|
|
|
|
Pass means let program see this signal; otherwise program doesn't know.\n\
|
1992-09-19 11:25:52 +00:00
|
|
|
|
Ignore is a synonym for nopass and noignore is a synonym for pass.\n\
|
1991-03-28 16:26:26 +00:00
|
|
|
|
Pass and Stop may be combined.");
|
|
|
|
|
|
* Makefile.in (VERSION): Bump to 4.7.4.
* Makefile.in (SFILES_MAINDIR): Add typeprint.c, c-typeprint.c,
m2-typeprint.c, c-valprint.c cp-valprint.c m2-valprint.c.
* Makefile.in (HFILES): Add valprint.h.
* Makefile.in (OBS): Add typeprint.o, c-typeprint.o,
m2-typeprint.o, c-valprint.o, cp-valprint.o m2-valprint.o.
* typeprint.c, typeprint.h: New files for language independent
type printing functions.
* c-typeprint.c, m2-typeprint.c: New files for language dependent
type printing functions and definitions.
* valprint.h: New include file for language independent value
printing definitions.
* c-valprint.c, cp-valprint.c, m2-valprint.c: New files for language
dependent value printing functions.
* c-exp.y (production ptype): Add range_type variable and use new
create_range_type function.
* c-exp.y (tokentab2, tokentab3), c-lang.c (c_op_print_tab),
infcmd.c (path_var_name), language.c (unk_op_print_tab),
m2-lang.c (m2_op_print_tab): Change from ANSI-obsolescent
"const static" to ANSI-conformant "static const".
* c-exp.y (c_create_fundamental_type): Remove unused nbytes.
* c-exp.y (c_language_defn, cplus_language_defn): Add c_print_type,
and c_val_print.
* c-lang.h (c_print_type, c_val_print): Add prototypes.
* coffread.c (decode_type): Add range_type variable and call to
new create_range_type function.
* complaints.c (complain): Remove unused val variable.
* complaints.c (_initialize_complaints): Make it void.
* convex-tdep.c (value_of_trapped_internalvar): Add range_type
variable and call new create_range_type function.
* defs.h (enum val_prettyprint): Move enum from value.h to here
so we can avoid having to include value.h just for prototypes that
need the enum (thanks ANSI).
* dwarfread.c (struct_type): Local anonymous_size variable is
only used if !BITS_BIG_ENDIAN.
* dwarfread.c (decode_subscript_data_item): Add rangetype
variable and call new create_range_type function.
* elfread.c (elf_symfile_read): Remove unused dbx and text_sect
variables.
* eval.c (evaluate_subexp): Remove unused local variable name
and the statement with no side effects that initializes it.
* expprint.c (print_subexp): Change local_printstr to
LA_PRINT_STRING.
* gdbtypes.c (create_range_type): New function that creates
a range type using code fragments from object file readers as
an example of what has to be initialized.
* gdbtypes.c (create_array_type): Removed index_type, low_bound,
and high_bound parameters, replaced with a single range_type
parameter. Change function body to use passed in range_type
rather than handcrafting one.
* gdbtypes.h (create_range_type): Add prototype.
* gdbtypes.h (create_array_type): Change prototype parameters.
* infrun.c (normal_stop): Remove unused local variables tem and c.
* infrun.c (hook_stop_stub): Return 0 rather than random value.
* language.c (unk_lang_print_type, unk_lang_val_print): Add
stub functions that call error if called.
* language.c (unknown_language_defn, auto_language_defn,
local_language_defn): Add initializers unk_lang_print_type and
unk_lang_val_print.
* language.h (struct language_defn): Reformat for larger
comments, add la_print_type and la_val_print members. Add
LA_PRINT_TYPE and LA_VAL_PRINT macros. Change local_printchar
to LA_PRINT_CHAR and local_printstr to LA_PRINT_STRING.
* m2-lang.c (m2_create_fundamental_type): Remove unused local
variable nbytes.
* m2-lang.c (m2_language_defn): Add initializers m2_print_type
and m2_val_print.
* m2-lang.h (m2_print_type, m2_val_print): Add prototypes.
* main.c (execute_command): Remove unused local variable cmdlines.
* main.c (echo_command), stabsread.c (read_type), printcmd.c
(clear_displays), symmisc.c (block_depth), values.c
(clear_value_history):
Make testing of truth value of assignment result explicit.
* mipsread.c (upgrade_type): Update FIXME to include future use
of create_range_type.
* printcmd.c (ptype_command, ptype_eval, whatis_command,
whatis_exp, maintenance_print_type): Move prototypes and functions
to new typeprint.c.
* printcmd.c (_initialize_printcmd): Move add_com calls for
ptype_command and whatis_command to new typeprint.c.
* ser-bsd.c (serial_open): Remove unused variable sgttyb.
* source.c (find_source_lines): Local variable c only used
when LSEEK_NOT_LINEAR is defined.
* stabsread.c (read_array_type): Use new create_range_type
function.
* stabsread.c (read_range_type): Add new index_type variable and
call new create_range_type function rather than handcrafting
range types.
* symmisc.c (type_print_1): Change usages to LA_PRINT_TYPE.
* symtab.c (typedef_print usages): Use c_typedef_print, renamed.
* symtab.c (type_print_base usages): Use c_type_print_base.
* symtab.c (type_print_varspec_prefix usages): Use
c_type_print_varspec_prefix.
* symtab.c (type_print_method_args usages): Use
cp_type_print_method_args.
* valprint.c: Completely ripped apart and the fragments used
to create c-valprint.c, cp-valprint.c, m2-valprint.c, and
valprint.h. Remaining stuff is language independent.
* value.h (struct fn_field): Forward declare for prototypes.
* value.h (type_print_1): Remove prototype.
* value.h (enum val_prettyprint): Moved to defs.h.
* value.h (typedef_print): Prototype renamed to c_typedef_print.
* value.h (baseclass_offset): Add prototype.
**** start-sanitize-chill ****
* Makefile.in (SFILES_MAINDIR): Add ch-typeprint.c, ch-valprint.c.
* Makefile.in (OBS): Add ch-typeprint.o, ch-valprint.o.
* ch-typeprint.c: New file for language dependent type printing.
* ch-valprint.c: New file for language dependent value printing.
* ch-exp.y (parse_number): Remove prototype and stub function.
* ch-exp.y (decode_integer_literal): Removed unused digits and
temp variables.
* ch-exp.y (convert_float): Completely ifdef out for now.
* ch-exp.y (tokentab2, tokentab3, tokentab4, tokentab5),
ch-lang.c (chill_op_print_tab):
Change from ANSI-obsolescent "const static" to ANSI-conformant
"static const".
* ch-exp.y (yylex): Add unhandled storage class enumeration
literals to switch statement for completeness.
* ch-lang.c (chill_create_fundamental_types): Remove unused
nbytes variable. Change dummy type to 2 bytes to match int.
Handle FT_VOID types gratuituously added to chill DWARF by
compiler. Change FT_CHAR case to generate an TYPE_CODE_CHAR
type rather than a one byte TYPE_CODE_INT type.
* ch-lang.c (chill_language_defn): Add chill_print_type and
chill_val_print.
* ch-lang.h (chill_print_type, chill_val_print): Add prototypes.
**** end-sanitize-chill ****
1992-12-18 20:21:32 +00:00
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stop_command = add_cmd ("stop", class_obscure, not_just_help_class_command,
|
NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector as
to_notice_signals.
* inferior.h (proc_signal_handling_change): prototype removed.
* infrun.c (NOTICE_SIGNAL_HANDLING_CHANGE): default removed.
(handle_command): now calls target_notice_signals.
* procfs.c (proc_signal_handling_change): renamed to
procfs_notice_signals. Now static. Add prototype. All callers
changed.
* target.h (struct target_ops): new field, to_notice_signals.
(target_notice_signals): new macro to cover new field.
* target.c (cleanup_target): default to_notice_signals to ignore.
* corelow.c (core_ops),
exec.c (exec_ops),
inftarg.c (child_ops),
procfs.c (procfs_ops),
remote-adapt.c (adapt-ops),
remote-eb.c (eb_ops),
remote-es1800.c (es1800_ops, es1800_child_ops),
remote-hms.c (hms_ops),
remote-mm.c (mm_ops),
remote-nindy.c (nindy_ops),
remote-st2000.c (st2000_ops),
remote-udi.c (udi_ops),
remote-vx.c (vx_ops, vx_run_ops),
remote.c (remote_ops),
target.c (dummy_target),
xcoffexec.c (exec_ops): added static initializer for
to_notice_signals.
* xm-irix4.h, xm-sysv4.h (NOTICE_SIGNAL_HANDLING_CHANGE): removed.
1992-10-06 22:54:57 +00:00
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"There is no `stop' command, but you can set a hook on `stop'.\n\
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This allows you to set a list of commands to be run each time execution\n\
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of the inferior program stops.", &cmdlist);
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1992-06-23 00:25:11 +00:00
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numsigs = signo_max () + 1;
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1992-09-19 11:25:52 +00:00
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signal_stop = (unsigned char *)
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xmalloc (sizeof (signal_stop[0]) * numsigs);
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signal_print = (unsigned char *)
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xmalloc (sizeof (signal_print[0]) * numsigs);
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signal_program = (unsigned char *)
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xmalloc (sizeof (signal_program[0]) * numsigs);
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1992-06-23 00:25:11 +00:00
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for (i = 0; i < numsigs; i++)
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1991-03-28 16:26:26 +00:00
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{
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signal_stop[i] = 1;
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signal_print[i] = 1;
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signal_program[i] = 1;
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}
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/* Signals caused by debugger's own actions
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should not be given to the program afterwards. */
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signal_program[SIGTRAP] = 0;
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signal_program[SIGINT] = 0;
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/* Signals that are not errors should not normally enter the debugger. */
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#ifdef SIGALRM
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signal_stop[SIGALRM] = 0;
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signal_print[SIGALRM] = 0;
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#endif /* SIGALRM */
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#ifdef SIGVTALRM
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signal_stop[SIGVTALRM] = 0;
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signal_print[SIGVTALRM] = 0;
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#endif /* SIGVTALRM */
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#ifdef SIGPROF
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signal_stop[SIGPROF] = 0;
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signal_print[SIGPROF] = 0;
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#endif /* SIGPROF */
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#ifdef SIGCHLD
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signal_stop[SIGCHLD] = 0;
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signal_print[SIGCHLD] = 0;
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#endif /* SIGCHLD */
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#ifdef SIGCLD
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signal_stop[SIGCLD] = 0;
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signal_print[SIGCLD] = 0;
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#endif /* SIGCLD */
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#ifdef SIGIO
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signal_stop[SIGIO] = 0;
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signal_print[SIGIO] = 0;
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#endif /* SIGIO */
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#ifdef SIGURG
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signal_stop[SIGURG] = 0;
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signal_print[SIGURG] = 0;
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#endif /* SIGURG */
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}
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