1350 lines
35 KiB
C
1350 lines
35 KiB
C
/* Scheme interface to breakpoints.
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Copyright (C) 2008-2015 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* See README file in this directory for implementation notes, coding
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conventions, et.al. */
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#include "defs.h"
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#include "value.h"
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#include "breakpoint.h"
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#include "gdbcmd.h"
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#include "gdbthread.h"
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#include "observer.h"
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#include "cli/cli-script.h"
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#include "ada-lang.h"
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#include "arch-utils.h"
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#include "language.h"
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#include "guile-internal.h"
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#include "location.h"
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/* The <gdb:breakpoint> smob.
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N.B.: The name of this struct is known to breakpoint.h.
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Note: Breakpoints are added to gdb using a two step process:
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1) Call make-breakpoint to create a <gdb:breakpoint> object.
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2) Call register-breakpoint! to add the breakpoint to gdb.
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It is done this way so that the constructor, make-breakpoint, doesn't have
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any side-effects. This means that the smob needs to store everything
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that was passed to make-breakpoint. */
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typedef struct gdbscm_breakpoint_object
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{
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/* This always appears first. */
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gdb_smob base;
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/* Non-zero if this breakpoint was created with make-breakpoint. */
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int is_scheme_bkpt;
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/* For breakpoints created with make-breakpoint, these are the parameters
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that were passed to make-breakpoint. These values are not used except
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to register the breakpoint with GDB. */
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struct
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{
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/* The string representation of the breakpoint.
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Space for this lives in GC space. */
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char *location;
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/* The kind of breakpoint.
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At the moment this can only be one of bp_breakpoint, bp_watchpoint. */
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enum bptype type;
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/* If a watchpoint, the kind of watchpoint. */
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enum target_hw_bp_type access_type;
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/* Non-zero if the breakpoint is an "internal" breakpoint. */
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int is_internal;
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} spec;
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/* The breakpoint number according to gdb.
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For breakpoints created from Scheme, this has the value -1 until the
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breakpoint is registered with gdb.
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This is recorded here because BP will be NULL when deleted. */
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int number;
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/* The gdb breakpoint object, or NULL if the breakpoint has not been
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registered yet, or has been deleted. */
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struct breakpoint *bp;
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/* Backlink to our containing <gdb:breakpoint> smob.
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This is needed when we are deleted, we need to unprotect the object
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from GC. */
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SCM containing_scm;
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/* A stop condition or #f. */
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SCM stop;
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} breakpoint_smob;
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static const char breakpoint_smob_name[] = "gdb:breakpoint";
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/* The tag Guile knows the breakpoint smob by. */
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static scm_t_bits breakpoint_smob_tag;
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/* Variables used to pass information between the breakpoint_smob
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constructor and the breakpoint-created hook function. */
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static SCM pending_breakpoint_scm = SCM_BOOL_F;
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/* Keywords used by create-breakpoint!. */
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static SCM type_keyword;
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static SCM wp_class_keyword;
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static SCM internal_keyword;
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/* Administrivia for breakpoint smobs. */
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/* The smob "free" function for <gdb:breakpoint>. */
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static size_t
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bpscm_free_breakpoint_smob (SCM self)
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{
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breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (self);
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if (bp_smob->bp)
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bp_smob->bp->scm_bp_object = NULL;
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/* Not necessary, done to catch bugs. */
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bp_smob->bp = NULL;
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bp_smob->containing_scm = SCM_UNDEFINED;
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bp_smob->stop = SCM_UNDEFINED;
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return 0;
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}
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/* Return the name of TYPE.
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This doesn't handle all types, just the ones we export. */
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static const char *
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bpscm_type_to_string (enum bptype type)
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{
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switch (type)
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{
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case bp_none: return "BP_NONE";
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case bp_breakpoint: return "BP_BREAKPOINT";
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case bp_watchpoint: return "BP_WATCHPOINT";
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case bp_hardware_watchpoint: return "BP_HARDWARE_WATCHPOINT";
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case bp_read_watchpoint: return "BP_READ_WATCHPOINT";
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case bp_access_watchpoint: return "BP_ACCESS_WATCHPOINT";
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default: return "internal/other";
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}
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}
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/* Return the name of ENABLE_STATE. */
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static const char *
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bpscm_enable_state_to_string (enum enable_state enable_state)
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{
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switch (enable_state)
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{
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case bp_disabled: return "disabled";
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case bp_enabled: return "enabled";
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case bp_call_disabled: return "call_disabled";
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default: return "unknown";
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}
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}
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/* The smob "print" function for <gdb:breakpoint>. */
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static int
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bpscm_print_breakpoint_smob (SCM self, SCM port, scm_print_state *pstate)
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{
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breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (self);
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struct breakpoint *b = bp_smob->bp;
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gdbscm_printf (port, "#<%s", breakpoint_smob_name);
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/* Only print what we export to the user.
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The rest are possibly internal implementation details. */
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gdbscm_printf (port, " #%d", bp_smob->number);
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/* Careful, the breakpoint may be invalid. */
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if (b != NULL)
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{
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const char *str;
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gdbscm_printf (port, " %s %s %s",
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bpscm_type_to_string (b->type),
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bpscm_enable_state_to_string (b->enable_state),
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b->silent ? "silent" : "noisy");
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gdbscm_printf (port, " hit:%d", b->hit_count);
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gdbscm_printf (port, " ignore:%d", b->ignore_count);
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str = event_location_to_string (b->location);
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if (str != NULL)
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gdbscm_printf (port, " @%s", str);
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}
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scm_puts (">", port);
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scm_remember_upto_here_1 (self);
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/* Non-zero means success. */
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return 1;
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}
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/* Low level routine to create a <gdb:breakpoint> object. */
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static SCM
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bpscm_make_breakpoint_smob (void)
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{
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breakpoint_smob *bp_smob = (breakpoint_smob *)
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scm_gc_malloc (sizeof (breakpoint_smob), breakpoint_smob_name);
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SCM bp_scm;
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memset (bp_smob, 0, sizeof (*bp_smob));
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bp_smob->number = -1;
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bp_smob->stop = SCM_BOOL_F;
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bp_scm = scm_new_smob (breakpoint_smob_tag, (scm_t_bits) bp_smob);
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bp_smob->containing_scm = bp_scm;
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gdbscm_init_gsmob (&bp_smob->base);
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return bp_scm;
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}
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/* Return non-zero if we want a Scheme wrapper for breakpoint B.
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If FROM_SCHEME is non-zero,this is called for a breakpoint created
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by the user from Scheme. Otherwise it is zero. */
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static int
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bpscm_want_scm_wrapper_p (struct breakpoint *bp, int from_scheme)
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{
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/* Don't create <gdb:breakpoint> objects for internal GDB breakpoints. */
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if (bp->number < 0 && !from_scheme)
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return 0;
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/* The others are not supported. */
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if (bp->type != bp_breakpoint
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&& bp->type != bp_watchpoint
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&& bp->type != bp_hardware_watchpoint
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&& bp->type != bp_read_watchpoint
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&& bp->type != bp_access_watchpoint)
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return 0;
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return 1;
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}
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/* Install the Scheme side of a breakpoint, CONTAINING_SCM, in
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the gdb side BP. */
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static void
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bpscm_attach_scm_to_breakpoint (struct breakpoint *bp, SCM containing_scm)
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{
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breakpoint_smob *bp_smob;
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bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (containing_scm);
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bp_smob->number = bp->number;
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bp_smob->bp = bp;
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bp_smob->containing_scm = containing_scm;
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bp_smob->bp->scm_bp_object = bp_smob;
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/* The owner of this breakpoint is not in GC-controlled memory, so we need
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to protect it from GC until the breakpoint is deleted. */
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scm_gc_protect_object (containing_scm);
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}
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/* Return non-zero if SCM is a breakpoint smob. */
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static int
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bpscm_is_breakpoint (SCM scm)
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{
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return SCM_SMOB_PREDICATE (breakpoint_smob_tag, scm);
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}
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/* (breakpoint? scm) -> boolean */
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static SCM
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gdbscm_breakpoint_p (SCM scm)
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{
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return scm_from_bool (bpscm_is_breakpoint (scm));
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}
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/* Returns the <gdb:breakpoint> object in SELF.
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Throws an exception if SELF is not a <gdb:breakpoint> object. */
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static SCM
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bpscm_get_breakpoint_arg_unsafe (SCM self, int arg_pos, const char *func_name)
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{
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SCM_ASSERT_TYPE (bpscm_is_breakpoint (self), self, arg_pos, func_name,
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breakpoint_smob_name);
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return self;
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}
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/* Returns a pointer to the breakpoint smob of SELF.
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Throws an exception if SELF is not a <gdb:breakpoint> object. */
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static breakpoint_smob *
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bpscm_get_breakpoint_smob_arg_unsafe (SCM self, int arg_pos,
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const char *func_name)
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{
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SCM bp_scm = bpscm_get_breakpoint_arg_unsafe (self, arg_pos, func_name);
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breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (bp_scm);
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return bp_smob;
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}
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/* Return non-zero if breakpoint BP_SMOB is valid. */
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static int
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bpscm_is_valid (breakpoint_smob *bp_smob)
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{
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return bp_smob->bp != NULL;
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}
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/* Returns the breakpoint smob in SELF, verifying it's valid.
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Throws an exception if SELF is not a <gdb:breakpoint> object,
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or is invalid. */
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static breakpoint_smob *
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bpscm_get_valid_breakpoint_smob_arg_unsafe (SCM self, int arg_pos,
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const char *func_name)
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{
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breakpoint_smob *bp_smob
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= bpscm_get_breakpoint_smob_arg_unsafe (self, arg_pos, func_name);
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if (!bpscm_is_valid (bp_smob))
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{
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gdbscm_invalid_object_error (func_name, arg_pos, self,
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_("<gdb:breakpoint>"));
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}
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return bp_smob;
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}
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/* Breakpoint methods. */
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/* (make-breakpoint string [#:type integer] [#:wp-class integer]
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[#:internal boolean) -> <gdb:breakpoint>
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The result is the <gdb:breakpoint> Scheme object.
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The breakpoint is not available to be used yet, however.
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It must still be added to gdb with register-breakpoint!. */
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static SCM
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gdbscm_make_breakpoint (SCM location_scm, SCM rest)
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{
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const SCM keywords[] = {
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type_keyword, wp_class_keyword, internal_keyword, SCM_BOOL_F
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};
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char *s;
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char *location;
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int type_arg_pos = -1, access_type_arg_pos = -1, internal_arg_pos = -1;
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enum bptype type = bp_breakpoint;
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enum target_hw_bp_type access_type = hw_write;
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int internal = 0;
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SCM result;
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breakpoint_smob *bp_smob;
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gdbscm_parse_function_args (FUNC_NAME, SCM_ARG1, keywords, "s#iit",
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location_scm, &location, rest,
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&type_arg_pos, &type,
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&access_type_arg_pos, &access_type,
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&internal_arg_pos, &internal);
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result = bpscm_make_breakpoint_smob ();
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bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (result);
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s = location;
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location = gdbscm_gc_xstrdup (s);
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xfree (s);
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switch (type)
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{
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case bp_breakpoint:
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if (access_type_arg_pos > 0)
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{
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gdbscm_misc_error (FUNC_NAME, access_type_arg_pos,
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scm_from_int (access_type),
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_("access type with breakpoint is not allowed"));
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}
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break;
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case bp_watchpoint:
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switch (access_type)
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{
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case hw_write:
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case hw_access:
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case hw_read:
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break;
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default:
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gdbscm_out_of_range_error (FUNC_NAME, access_type_arg_pos,
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scm_from_int (access_type),
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_("invalid watchpoint class"));
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}
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break;
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default:
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gdbscm_out_of_range_error (FUNC_NAME, access_type_arg_pos,
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scm_from_int (type),
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_("invalid breakpoint type"));
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}
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bp_smob->is_scheme_bkpt = 1;
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bp_smob->spec.location = location;
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bp_smob->spec.type = type;
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bp_smob->spec.access_type = access_type;
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bp_smob->spec.is_internal = internal;
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return result;
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}
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/* (register-breakpoint! <gdb:breakpoint>) -> unspecified
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It is an error to register a breakpoint created outside of Guile,
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or an already-registered breakpoint. */
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static SCM
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gdbscm_register_breakpoint_x (SCM self)
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{
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breakpoint_smob *bp_smob
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= bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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struct gdb_exception except = exception_none;
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char *location, *copy;
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struct event_location *eloc;
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struct cleanup *cleanup;
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/* We only support registering breakpoints created with make-breakpoint. */
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if (!bp_smob->is_scheme_bkpt)
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scm_misc_error (FUNC_NAME, _("not a Scheme breakpoint"), SCM_EOL);
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if (bpscm_is_valid (bp_smob))
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scm_misc_error (FUNC_NAME, _("breakpoint is already registered"), SCM_EOL);
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pending_breakpoint_scm = self;
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location = bp_smob->spec.location;
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copy = location;
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eloc = new_linespec_location (©);
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cleanup = make_cleanup_delete_event_location (eloc);
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TRY
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{
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||
int internal = bp_smob->spec.is_internal;
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||
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switch (bp_smob->spec.type)
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{
|
||
case bp_breakpoint:
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{
|
||
create_breakpoint (get_current_arch (),
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eloc, NULL, -1, NULL,
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0,
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0, bp_breakpoint,
|
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0,
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AUTO_BOOLEAN_TRUE,
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||
&bkpt_breakpoint_ops,
|
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0, 1, internal, 0);
|
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break;
|
||
}
|
||
case bp_watchpoint:
|
||
{
|
||
enum target_hw_bp_type access_type = bp_smob->spec.access_type;
|
||
|
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if (access_type == hw_write)
|
||
watch_command_wrapper (location, 0, internal);
|
||
else if (access_type == hw_access)
|
||
awatch_command_wrapper (location, 0, internal);
|
||
else if (access_type == hw_read)
|
||
rwatch_command_wrapper (location, 0, internal);
|
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else
|
||
gdb_assert_not_reached ("invalid access type");
|
||
break;
|
||
}
|
||
default:
|
||
gdb_assert_not_reached ("invalid breakpoint type");
|
||
}
|
||
}
|
||
CATCH (ex, RETURN_MASK_ALL)
|
||
{
|
||
except = ex;
|
||
}
|
||
END_CATCH
|
||
|
||
/* Ensure this gets reset, even if there's an error. */
|
||
pending_breakpoint_scm = SCM_BOOL_F;
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
do_cleanups (cleanup);
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (delete-breakpoint! <gdb:breakpoint>) -> unspecified
|
||
Scheme function which deletes (removes) the underlying GDB breakpoint
|
||
from GDB's list of breakpoints. This triggers the breakpoint_deleted
|
||
observer which will call gdbscm_breakpoint_deleted; that function cleans
|
||
up the Scheme bits. */
|
||
|
||
static SCM
|
||
gdbscm_delete_breakpoint_x (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
TRY
|
||
{
|
||
delete_breakpoint (bp_smob->bp);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* iterate_over_breakpoints function for gdbscm_breakpoints. */
|
||
|
||
static int
|
||
bpscm_build_bp_list (struct breakpoint *bp, void *arg)
|
||
{
|
||
SCM *list = (SCM *) arg;
|
||
breakpoint_smob *bp_smob = bp->scm_bp_object;
|
||
|
||
/* Lazily create wrappers for breakpoints created outside Scheme. */
|
||
|
||
if (bp_smob == NULL)
|
||
{
|
||
if (bpscm_want_scm_wrapper_p (bp, 0))
|
||
{
|
||
SCM bp_scm;
|
||
|
||
bp_scm = bpscm_make_breakpoint_smob ();
|
||
bpscm_attach_scm_to_breakpoint (bp, bp_scm);
|
||
/* Refetch it. */
|
||
bp_smob = bp->scm_bp_object;
|
||
}
|
||
}
|
||
|
||
/* Not all breakpoints will have a companion Scheme object.
|
||
Only breakpoints that trigger the created_breakpoint observer call,
|
||
and satisfy certain conditions (see bpscm_want_scm_wrapper_p),
|
||
get a companion object (this includes Scheme-created breakpoints). */
|
||
|
||
if (bp_smob != NULL)
|
||
*list = scm_cons (bp_smob->containing_scm, *list);
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* (breakpoints) -> list
|
||
Return a list of all breakpoints. */
|
||
|
||
static SCM
|
||
gdbscm_breakpoints (void)
|
||
{
|
||
SCM list = SCM_EOL;
|
||
|
||
/* If iterate_over_breakpoints returns non-NULL it means the iteration
|
||
terminated early.
|
||
In that case abandon building the list and return #f. */
|
||
if (iterate_over_breakpoints (bpscm_build_bp_list, &list) != NULL)
|
||
return SCM_BOOL_F;
|
||
|
||
return scm_reverse_x (list, SCM_EOL);
|
||
}
|
||
|
||
/* (breakpoint-valid? <gdb:breakpoint>) -> boolean
|
||
Returns #t if SELF is still valid. */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_valid_p (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return scm_from_bool (bpscm_is_valid (bp_smob));
|
||
}
|
||
|
||
/* (breakpoint-enabled? <gdb:breakpoint>) -> boolean */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_enabled_p (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return scm_from_bool (bp_smob->bp->enable_state == bp_enabled);
|
||
}
|
||
|
||
/* (set-breakpoint-enabled? <gdb:breakpoint> boolean) -> unspecified */
|
||
|
||
static SCM
|
||
gdbscm_set_breakpoint_enabled_x (SCM self, SCM newvalue)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME,
|
||
_("boolean"));
|
||
|
||
TRY
|
||
{
|
||
if (gdbscm_is_true (newvalue))
|
||
enable_breakpoint (bp_smob->bp);
|
||
else
|
||
disable_breakpoint (bp_smob->bp);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (breakpoint-silent? <gdb:breakpoint>) -> boolean */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_silent_p (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return scm_from_bool (bp_smob->bp->silent);
|
||
}
|
||
|
||
/* (set-breakpoint-silent?! <gdb:breakpoint> boolean) -> unspecified */
|
||
|
||
static SCM
|
||
gdbscm_set_breakpoint_silent_x (SCM self, SCM newvalue)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME,
|
||
_("boolean"));
|
||
|
||
TRY
|
||
{
|
||
breakpoint_set_silent (bp_smob->bp, gdbscm_is_true (newvalue));
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (breakpoint-ignore-count <gdb:breakpoint>) -> integer */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_ignore_count (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return scm_from_long (bp_smob->bp->ignore_count);
|
||
}
|
||
|
||
/* (set-breakpoint-ignore-count! <gdb:breakpoint> integer)
|
||
-> unspecified */
|
||
|
||
static SCM
|
||
gdbscm_set_breakpoint_ignore_count_x (SCM self, SCM newvalue)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
long value;
|
||
|
||
SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX),
|
||
newvalue, SCM_ARG2, FUNC_NAME, _("integer"));
|
||
|
||
value = scm_to_long (newvalue);
|
||
if (value < 0)
|
||
value = 0;
|
||
|
||
TRY
|
||
{
|
||
set_ignore_count (bp_smob->number, (int) value, 0);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (breakpoint-hit-count <gdb:breakpoint>) -> integer */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_hit_count (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return scm_from_long (bp_smob->bp->hit_count);
|
||
}
|
||
|
||
/* (set-breakpoint-hit-count! <gdb:breakpoint> integer) -> unspecified */
|
||
|
||
static SCM
|
||
gdbscm_set_breakpoint_hit_count_x (SCM self, SCM newvalue)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
long value;
|
||
|
||
SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX),
|
||
newvalue, SCM_ARG2, FUNC_NAME, _("integer"));
|
||
|
||
value = scm_to_long (newvalue);
|
||
if (value < 0)
|
||
value = 0;
|
||
|
||
if (value != 0)
|
||
{
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue,
|
||
_("hit-count must be zero"));
|
||
}
|
||
|
||
bp_smob->bp->hit_count = 0;
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (breakpoint-thread <gdb:breakpoint>) -> integer */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_thread (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
if (bp_smob->bp->thread == -1)
|
||
return SCM_BOOL_F;
|
||
|
||
return scm_from_long (bp_smob->bp->thread);
|
||
}
|
||
|
||
/* (set-breakpoint-thread! <gdb:breakpoint> integer) -> unspecified */
|
||
|
||
static SCM
|
||
gdbscm_set_breakpoint_thread_x (SCM self, SCM newvalue)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
long id;
|
||
|
||
if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX))
|
||
{
|
||
id = scm_to_long (newvalue);
|
||
if (! valid_thread_id (id))
|
||
{
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue,
|
||
_("invalid thread id"));
|
||
}
|
||
}
|
||
else if (gdbscm_is_false (newvalue))
|
||
id = -1;
|
||
else
|
||
SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f"));
|
||
|
||
breakpoint_set_thread (bp_smob->bp, id);
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (breakpoint-task <gdb:breakpoint>) -> integer */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_task (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
if (bp_smob->bp->task == 0)
|
||
return SCM_BOOL_F;
|
||
|
||
return scm_from_long (bp_smob->bp->task);
|
||
}
|
||
|
||
/* (set-breakpoint-task! <gdb:breakpoint> integer) -> unspecified */
|
||
|
||
static SCM
|
||
gdbscm_set_breakpoint_task_x (SCM self, SCM newvalue)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
long id;
|
||
int valid_id = 0;
|
||
|
||
if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX))
|
||
{
|
||
id = scm_to_long (newvalue);
|
||
|
||
TRY
|
||
{
|
||
valid_id = valid_task_id (id);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
if (! valid_id)
|
||
{
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue,
|
||
_("invalid task id"));
|
||
}
|
||
}
|
||
else if (gdbscm_is_false (newvalue))
|
||
id = 0;
|
||
else
|
||
SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f"));
|
||
|
||
TRY
|
||
{
|
||
breakpoint_set_task (bp_smob->bp, id);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (breakpoint-location <gdb:breakpoint>) -> string */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_location (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
const char *str;
|
||
|
||
if (bp_smob->bp->type != bp_breakpoint)
|
||
return SCM_BOOL_F;
|
||
|
||
str = event_location_to_string (bp_smob->bp->location);
|
||
if (! str)
|
||
str = "";
|
||
|
||
return gdbscm_scm_from_c_string (str);
|
||
}
|
||
|
||
/* (breakpoint-expression <gdb:breakpoint>) -> string
|
||
This is only valid for watchpoints.
|
||
Returns #f for non-watchpoints. */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_expression (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
char *str;
|
||
struct watchpoint *wp;
|
||
|
||
if (!is_watchpoint (bp_smob->bp))
|
||
return SCM_BOOL_F;
|
||
|
||
wp = (struct watchpoint *) bp_smob->bp;
|
||
|
||
str = wp->exp_string;
|
||
if (! str)
|
||
str = "";
|
||
|
||
return gdbscm_scm_from_c_string (str);
|
||
}
|
||
|
||
/* (breakpoint-condition <gdb:breakpoint>) -> string */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_condition (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
char *str;
|
||
|
||
str = bp_smob->bp->cond_string;
|
||
if (! str)
|
||
return SCM_BOOL_F;
|
||
|
||
return gdbscm_scm_from_c_string (str);
|
||
}
|
||
|
||
/* (set-breakpoint-condition! <gdb:breakpoint> string|#f)
|
||
-> unspecified */
|
||
|
||
static SCM
|
||
gdbscm_set_breakpoint_condition_x (SCM self, SCM newvalue)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
char *exp;
|
||
struct gdb_exception except = exception_none;
|
||
|
||
SCM_ASSERT_TYPE (scm_is_string (newvalue) || gdbscm_is_false (newvalue),
|
||
newvalue, SCM_ARG2, FUNC_NAME,
|
||
_("string or #f"));
|
||
|
||
if (gdbscm_is_false (newvalue))
|
||
exp = NULL;
|
||
else
|
||
exp = gdbscm_scm_to_c_string (newvalue);
|
||
|
||
TRY
|
||
{
|
||
set_breakpoint_condition (bp_smob->bp, exp ? exp : "", 0);
|
||
}
|
||
CATCH (ex, RETURN_MASK_ALL)
|
||
{
|
||
except = ex;
|
||
}
|
||
END_CATCH
|
||
|
||
xfree (exp);
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (breakpoint-stop <gdb:breakpoint>) -> procedure or #f */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_stop (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return bp_smob->stop;
|
||
}
|
||
|
||
/* (set-breakpoint-stop! <gdb:breakpoint> procedure|#f)
|
||
-> unspecified */
|
||
|
||
static SCM
|
||
gdbscm_set_breakpoint_stop_x (SCM self, SCM newvalue)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
const struct extension_language_defn *extlang = NULL;
|
||
|
||
SCM_ASSERT_TYPE (gdbscm_is_procedure (newvalue)
|
||
|| gdbscm_is_false (newvalue),
|
||
newvalue, SCM_ARG2, FUNC_NAME,
|
||
_("procedure or #f"));
|
||
|
||
if (bp_smob->bp->cond_string != NULL)
|
||
extlang = get_ext_lang_defn (EXT_LANG_GDB);
|
||
if (extlang == NULL)
|
||
extlang = get_breakpoint_cond_ext_lang (bp_smob->bp, EXT_LANG_GUILE);
|
||
if (extlang != NULL)
|
||
{
|
||
char *error_text
|
||
= xstrprintf (_("Only one stop condition allowed. There is"
|
||
" currently a %s stop condition defined for"
|
||
" this breakpoint."),
|
||
ext_lang_capitalized_name (extlang));
|
||
|
||
scm_dynwind_begin ((scm_t_dynwind_flags) 0);
|
||
gdbscm_dynwind_xfree (error_text);
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self, error_text);
|
||
/* The following line, while unnecessary, is present for completeness
|
||
sake. */
|
||
scm_dynwind_end ();
|
||
}
|
||
|
||
bp_smob->stop = newvalue;
|
||
|
||
return SCM_UNSPECIFIED;
|
||
}
|
||
|
||
/* (breakpoint-commands <gdb:breakpoint>) -> string */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_commands (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct breakpoint *bp;
|
||
long length;
|
||
struct ui_file *string_file;
|
||
struct cleanup *chain;
|
||
SCM result;
|
||
char *cmdstr;
|
||
|
||
bp = bp_smob->bp;
|
||
|
||
if (bp->commands == NULL)
|
||
return SCM_BOOL_F;
|
||
|
||
string_file = mem_fileopen ();
|
||
chain = make_cleanup_ui_file_delete (string_file);
|
||
|
||
ui_out_redirect (current_uiout, string_file);
|
||
TRY
|
||
{
|
||
print_command_lines (current_uiout, breakpoint_commands (bp), 0);
|
||
}
|
||
ui_out_redirect (current_uiout, NULL);
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
do_cleanups (chain);
|
||
gdbscm_throw_gdb_exception (except);
|
||
}
|
||
END_CATCH
|
||
|
||
cmdstr = ui_file_xstrdup (string_file, &length);
|
||
make_cleanup (xfree, cmdstr);
|
||
result = gdbscm_scm_from_c_string (cmdstr);
|
||
|
||
do_cleanups (chain);
|
||
return result;
|
||
}
|
||
|
||
/* (breakpoint-type <gdb:breakpoint>) -> integer */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_type (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return scm_from_long (bp_smob->bp->type);
|
||
}
|
||
|
||
/* (breakpoint-visible? <gdb:breakpoint>) -> boolean */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_visible (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return scm_from_bool (bp_smob->bp->number >= 0);
|
||
}
|
||
|
||
/* (breakpoint-number <gdb:breakpoint>) -> integer */
|
||
|
||
static SCM
|
||
gdbscm_breakpoint_number (SCM self)
|
||
{
|
||
breakpoint_smob *bp_smob
|
||
= bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return scm_from_long (bp_smob->number);
|
||
}
|
||
|
||
/* Return TRUE if "stop" has been set for this breakpoint.
|
||
|
||
This is the extension_language_ops.breakpoint_has_cond "method". */
|
||
|
||
int
|
||
gdbscm_breakpoint_has_cond (const struct extension_language_defn *extlang,
|
||
struct breakpoint *b)
|
||
{
|
||
breakpoint_smob *bp_smob = b->scm_bp_object;
|
||
|
||
if (bp_smob == NULL)
|
||
return 0;
|
||
|
||
return gdbscm_is_procedure (bp_smob->stop);
|
||
}
|
||
|
||
/* Call the "stop" method in the breakpoint class.
|
||
This must only be called if gdbscm_breakpoint_has_cond returns true.
|
||
If the stop method returns #t, the inferior will be stopped at the
|
||
breakpoint. Otherwise the inferior will be allowed to continue
|
||
(assuming other conditions don't indicate "stop").
|
||
|
||
This is the extension_language_ops.breakpoint_cond_says_stop "method". */
|
||
|
||
enum ext_lang_bp_stop
|
||
gdbscm_breakpoint_cond_says_stop
|
||
(const struct extension_language_defn *extlang, struct breakpoint *b)
|
||
{
|
||
breakpoint_smob *bp_smob = b->scm_bp_object;
|
||
SCM predicate_result;
|
||
int stop;
|
||
|
||
if (bp_smob == NULL)
|
||
return EXT_LANG_BP_STOP_UNSET;
|
||
if (!gdbscm_is_procedure (bp_smob->stop))
|
||
return EXT_LANG_BP_STOP_UNSET;
|
||
|
||
stop = 1;
|
||
|
||
predicate_result
|
||
= gdbscm_safe_call_1 (bp_smob->stop, bp_smob->containing_scm, NULL);
|
||
|
||
if (gdbscm_is_exception (predicate_result))
|
||
; /* Exception already printed. */
|
||
/* If the "stop" function returns #f that means
|
||
the Scheme breakpoint wants GDB to continue. */
|
||
else if (gdbscm_is_false (predicate_result))
|
||
stop = 0;
|
||
|
||
return stop ? EXT_LANG_BP_STOP_YES : EXT_LANG_BP_STOP_NO;
|
||
}
|
||
|
||
/* Event callback functions. */
|
||
|
||
/* Callback that is used when a breakpoint is created.
|
||
For breakpoints created by Scheme, i.e., gdbscm_create_breakpoint_x, finish
|
||
object creation by connecting the Scheme wrapper to the gdb object.
|
||
We ignore breakpoints created from gdb or python here, we create the
|
||
Scheme wrapper for those when there's a need to, e.g.,
|
||
gdbscm_breakpoints. */
|
||
|
||
static void
|
||
bpscm_breakpoint_created (struct breakpoint *bp)
|
||
{
|
||
SCM bp_scm;
|
||
|
||
if (gdbscm_is_false (pending_breakpoint_scm))
|
||
return;
|
||
|
||
/* Verify our caller error checked the user's request. */
|
||
gdb_assert (bpscm_want_scm_wrapper_p (bp, 1));
|
||
|
||
bp_scm = pending_breakpoint_scm;
|
||
pending_breakpoint_scm = SCM_BOOL_F;
|
||
|
||
bpscm_attach_scm_to_breakpoint (bp, bp_scm);
|
||
}
|
||
|
||
/* Callback that is used when a breakpoint is deleted. This will
|
||
invalidate the corresponding Scheme object. */
|
||
|
||
static void
|
||
bpscm_breakpoint_deleted (struct breakpoint *b)
|
||
{
|
||
int num = b->number;
|
||
struct breakpoint *bp;
|
||
|
||
/* TODO: Why the lookup? We have B. */
|
||
|
||
bp = get_breakpoint (num);
|
||
if (bp)
|
||
{
|
||
breakpoint_smob *bp_smob = bp->scm_bp_object;
|
||
|
||
if (bp_smob)
|
||
{
|
||
bp_smob->bp = NULL;
|
||
bp_smob->number = -1;
|
||
bp_smob->stop = SCM_BOOL_F;
|
||
scm_gc_unprotect_object (bp_smob->containing_scm);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Initialize the Scheme breakpoint code. */
|
||
|
||
static const scheme_integer_constant breakpoint_integer_constants[] =
|
||
{
|
||
{ "BP_NONE", bp_none },
|
||
{ "BP_BREAKPOINT", bp_breakpoint },
|
||
{ "BP_WATCHPOINT", bp_watchpoint },
|
||
{ "BP_HARDWARE_WATCHPOINT", bp_hardware_watchpoint },
|
||
{ "BP_READ_WATCHPOINT", bp_read_watchpoint },
|
||
{ "BP_ACCESS_WATCHPOINT", bp_access_watchpoint },
|
||
|
||
{ "WP_READ", hw_read },
|
||
{ "WP_WRITE", hw_write },
|
||
{ "WP_ACCESS", hw_access },
|
||
|
||
END_INTEGER_CONSTANTS
|
||
};
|
||
|
||
static const scheme_function breakpoint_functions[] =
|
||
{
|
||
{ "make-breakpoint", 1, 0, 1, as_a_scm_t_subr (gdbscm_make_breakpoint),
|
||
"\
|
||
Create a GDB breakpoint object.\n\
|
||
\n\
|
||
Arguments:\n\
|
||
location [#:type <type>] [#:wp-class <wp-class>] [#:internal <bool>]\n\
|
||
Returns:\n\
|
||
<gdb:breakpoint object" },
|
||
|
||
{ "register-breakpoint!", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_register_breakpoint_x),
|
||
"\
|
||
Register a <gdb:breakpoint> object with GDB." },
|
||
|
||
{ "delete-breakpoint!", 1, 0, 0, as_a_scm_t_subr (gdbscm_delete_breakpoint_x),
|
||
"\
|
||
Delete the breakpoint from GDB." },
|
||
|
||
{ "breakpoints", 0, 0, 0, as_a_scm_t_subr (gdbscm_breakpoints),
|
||
"\
|
||
Return a list of all GDB breakpoints.\n\
|
||
\n\
|
||
Arguments: none" },
|
||
|
||
{ "breakpoint?", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_p),
|
||
"\
|
||
Return #t if the object is a <gdb:breakpoint> object." },
|
||
|
||
{ "breakpoint-valid?", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_valid_p),
|
||
"\
|
||
Return #t if the breakpoint has not been deleted from GDB." },
|
||
|
||
{ "breakpoint-number", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_number),
|
||
"\
|
||
Return the breakpoint's number." },
|
||
|
||
{ "breakpoint-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_type),
|
||
"\
|
||
Return the type of the breakpoint." },
|
||
|
||
{ "breakpoint-visible?", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_visible),
|
||
"\
|
||
Return #t if the breakpoint is visible to the user." },
|
||
|
||
{ "breakpoint-location", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_breakpoint_location),
|
||
"\
|
||
Return the location of the breakpoint as specified by the user." },
|
||
|
||
{ "breakpoint-expression", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_breakpoint_expression),
|
||
"\
|
||
Return the expression of the breakpoint as specified by the user.\n\
|
||
Valid for watchpoints only, returns #f for non-watchpoints." },
|
||
|
||
{ "breakpoint-enabled?", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_breakpoint_enabled_p),
|
||
"\
|
||
Return #t if the breakpoint is enabled." },
|
||
|
||
{ "set-breakpoint-enabled!", 2, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_set_breakpoint_enabled_x),
|
||
"\
|
||
Set the breakpoint's enabled state.\n\
|
||
\n\
|
||
Arguments: <gdb:breakpoint> boolean" },
|
||
|
||
{ "breakpoint-silent?", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_silent_p),
|
||
"\
|
||
Return #t if the breakpoint is silent." },
|
||
|
||
{ "set-breakpoint-silent!", 2, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_set_breakpoint_silent_x),
|
||
"\
|
||
Set the breakpoint's silent state.\n\
|
||
\n\
|
||
Arguments: <gdb:breakpoint> boolean" },
|
||
|
||
{ "breakpoint-ignore-count", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_breakpoint_ignore_count),
|
||
"\
|
||
Return the breakpoint's \"ignore\" count." },
|
||
|
||
{ "set-breakpoint-ignore-count!", 2, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_set_breakpoint_ignore_count_x),
|
||
"\
|
||
Set the breakpoint's \"ignore\" count.\n\
|
||
\n\
|
||
Arguments: <gdb:breakpoint> count" },
|
||
|
||
{ "breakpoint-hit-count", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_breakpoint_hit_count),
|
||
"\
|
||
Return the breakpoint's \"hit\" count." },
|
||
|
||
{ "set-breakpoint-hit-count!", 2, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_set_breakpoint_hit_count_x),
|
||
"\
|
||
Set the breakpoint's \"hit\" count. The value must be zero.\n\
|
||
\n\
|
||
Arguments: <gdb:breakpoint> 0" },
|
||
|
||
{ "breakpoint-thread", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_thread),
|
||
"\
|
||
Return the breakpoint's thread id or #f if there isn't one." },
|
||
|
||
{ "set-breakpoint-thread!", 2, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_set_breakpoint_thread_x),
|
||
"\
|
||
Set the thread id for this breakpoint.\n\
|
||
\n\
|
||
Arguments: <gdb:breakpoint> thread-id" },
|
||
|
||
{ "breakpoint-task", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_task),
|
||
"\
|
||
Return the breakpoint's Ada task-id or #f if there isn't one." },
|
||
|
||
{ "set-breakpoint-task!", 2, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_set_breakpoint_task_x),
|
||
"\
|
||
Set the breakpoint's Ada task-id.\n\
|
||
\n\
|
||
Arguments: <gdb:breakpoint> task-id" },
|
||
|
||
{ "breakpoint-condition", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_breakpoint_condition),
|
||
"\
|
||
Return the breakpoint's condition as specified by the user.\n\
|
||
Return #f if there isn't one." },
|
||
|
||
{ "set-breakpoint-condition!", 2, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_set_breakpoint_condition_x),
|
||
"\
|
||
Set the breakpoint's condition.\n\
|
||
\n\
|
||
Arguments: <gdb:breakpoint> condition\n\
|
||
condition: a string" },
|
||
|
||
{ "breakpoint-stop", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_stop),
|
||
"\
|
||
Return the breakpoint's stop predicate.\n\
|
||
Return #f if there isn't one." },
|
||
|
||
{ "set-breakpoint-stop!", 2, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_set_breakpoint_stop_x),
|
||
"\
|
||
Set the breakpoint's stop predicate.\n\
|
||
\n\
|
||
Arguments: <gdb:breakpoint> procedure\n\
|
||
procedure: A procedure of one argument, the breakpoint.\n\
|
||
Its result is true if program execution should stop." },
|
||
|
||
{ "breakpoint-commands", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_breakpoint_commands),
|
||
"\
|
||
Return the breakpoint's commands." },
|
||
|
||
END_FUNCTIONS
|
||
};
|
||
|
||
void
|
||
gdbscm_initialize_breakpoints (void)
|
||
{
|
||
breakpoint_smob_tag
|
||
= gdbscm_make_smob_type (breakpoint_smob_name, sizeof (breakpoint_smob));
|
||
scm_set_smob_free (breakpoint_smob_tag, bpscm_free_breakpoint_smob);
|
||
scm_set_smob_print (breakpoint_smob_tag, bpscm_print_breakpoint_smob);
|
||
|
||
observer_attach_breakpoint_created (bpscm_breakpoint_created);
|
||
observer_attach_breakpoint_deleted (bpscm_breakpoint_deleted);
|
||
|
||
gdbscm_define_integer_constants (breakpoint_integer_constants, 1);
|
||
gdbscm_define_functions (breakpoint_functions, 1);
|
||
|
||
type_keyword = scm_from_latin1_keyword ("type");
|
||
wp_class_keyword = scm_from_latin1_keyword ("wp-class");
|
||
internal_keyword = scm_from_latin1_keyword ("internal");
|
||
}
|