/* Debugging extensions for Guile
- * Copyright (C) 1995, 1996 Mikael Djurfeldt
+ * Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
* If you do not wish that, delete this exception notice.
*
* The author can be reached at djurfeldt@nada.kth.se
- * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN
- */
+ * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN */
#include <stdio.h>
#include "_scm.h"
#include "eval.h"
+#include "stackchk.h"
#include "throw.h"
#include "genio.h"
+#include "macros.h"
#include "smob.h"
#include "procprop.h"
#include "srcprop.h"
#include "strports.h"
#include "read.h"
#include "feature.h"
+#include "dynwind.h"
+#include "modules.h"
#include "debug.h"
\f
*/
SCM_PROC (s_debug_options, "debug-options-interface", 0, 1, 0, scm_debug_options);
-#ifdef __STDC__
-SCM
-scm_debug_options (SCM setting)
-#else
+
SCM
scm_debug_options (setting)
SCM setting;
-#endif
{
SCM ans;
SCM_DEFER_INTS;
}
#endif
SCM_RESET_DEBUG_MODE;
+ scm_stack_checking_enabled_p = SCM_STACK_CHECKING_P;
scm_debug_eframe_size = 2 * SCM_N_FRAMES;
SCM_ALLOW_INTS
return ans;
}
-SCM_PROC (s_evaluator_traps, "evaluator-traps-interface", 0, 1, 0, scm_evaluator_traps);
-#ifdef __STDC__
-SCM
-scm_evaluator_traps (SCM setting)
-#else
-SCM
-scm_evaluator_traps (setting)
- SCM setting;
-#endif
+SCM_PROC (s_with_traps, "with-traps", 1, 0, 0, scm_with_traps);
+
+static void
+with_traps_before (void *data)
{
- SCM ans;
- SCM_DEFER_INTS;
- ans = scm_options (setting,
- scm_evaluator_trap_table,
- SCM_N_EVALUATOR_TRAPS,
- s_evaluator_traps);
- SCM_RESET_DEBUG_MODE;
- SCM_ALLOW_INTS
- return ans;
+ int *trap_flag = data;
+ *trap_flag = SCM_TRAPS_P;
+ SCM_TRAPS_P = 1;
+}
+
+static void
+with_traps_after (void *data)
+{
+ int *trap_flag = data;
+ SCM_TRAPS_P = *trap_flag;
+}
+
+static SCM
+with_traps_inner (void *data)
+{
+ SCM thunk = (SCM) data;
+ return scm_apply (thunk, SCM_EOL, SCM_EOL);
}
-SCM_PROC (s_single_step, "single-step", 2, 0, 0, scm_single_step);
-#ifdef __STDC__
-SCM
-scm_single_step (SCM cont, SCM val)
-#else
SCM
-scm_single_step (cont, val)
- SCM cont, SCM val;
-#endif
+scm_with_traps (SCM thunk)
{
- SCM_DEFER_INTS;
- SCM_ENTER_FRAME_P = SCM_EXIT_FRAME_P = 1;
- SCM_RESET_DEBUG_MODE;
- SCM_ALLOW_INTS;
- scm_throw (cont, val);
- return SCM_BOOL_F; /* never returns */
+ int trap_flag;
+ SCM_ASSERT (SCM_NFALSEP (scm_thunk_p (thunk)),
+ thunk,
+ SCM_ARG1,
+ s_with_traps);
+ return scm_internal_dynamic_wind (with_traps_before,
+ with_traps_inner,
+ with_traps_after,
+ (void *) thunk,
+ &trap_flag);
}
\f
long scm_tc16_memoized;
-#ifdef __STDC__
-static int
-prinmemoized (SCM obj, SCM port, scm_print_state *pstate)
-#else
+
+static int prinmemoized SCM_P ((SCM obj, SCM port, scm_print_state *pstate));
+
static int
prinmemoized (obj, port, pstate)
SCM obj;
SCM port;
scm_print_state *pstate;
-#endif
{
int writingp = SCM_WRITINGP (pstate);
- scm_gen_puts (scm_regular_string, "#<memoized ", port);
+ scm_puts ("#<memoized ", port);
SCM_SET_WRITINGP (pstate, 1);
+#ifdef GUILE_DEBUG
+ scm_iprin1 (SCM_MEMOIZED_EXP (obj), port, pstate);
+#else
scm_iprin1 (scm_unmemoize (obj), port, pstate);
+#endif
SCM_SET_WRITINGP (pstate, writingp);
- scm_gen_putc ('>', port);
+ scm_putc ('>', port);
return 1;
}
{scm_markcdr, scm_free0, prinmemoized, 0};
SCM_PROC (s_memoized_p, "memoized?", 1, 0, 0, scm_memoized_p);
-#ifdef __STDC__
-SCM
-scm_memoized_p (SCM obj)
-#else
+
SCM
scm_memoized_p (obj)
SCM obj;
-#endif
{
return SCM_NIMP (obj) && SCM_MEMOIZEDP (obj) ? SCM_BOOL_T : SCM_BOOL_F;
}
-#ifdef __STDC__
-SCM
-scm_make_memoized (SCM exp, SCM env)
-#else
SCM
scm_make_memoized (exp, env)
- SCM exp, SCM env;
-#endif
+ SCM exp;
+ SCM env;
{
+ /* *fixme* Check that env is a valid environment. */
register SCM z, ans;
- SCM_DEFER_INTS;
+ SCM_ENTER_A_SECTION;
SCM_NEWCELL (z);
- SCM_CAR (z) = exp;
- SCM_CDR (z) = env;
+ SCM_SETCDR (z, env);
+ SCM_SETCAR (z, exp);
SCM_NEWCELL (ans);
- SCM_CAR (ans) = scm_tc16_memoized;
- SCM_CDR (ans) = z;
- SCM_ALLOW_INTS;
+ SCM_SETCDR (ans, z);
+ SCM_SETCAR (ans, scm_tc16_memoized);
+ SCM_EXIT_A_SECTION;
return ans;
}
-SCM_PROC (s_unmemoize, "unmemoize", 1, 0, 0, scm_unmemoize);
-#ifdef __STDC__
+#ifdef GUILE_DEBUG
+/*
+ * Some primitives for construction of memoized code
+ *
+ * - procedure: memcons CAR CDR [ENV]
+ *
+ * Construct a pair, encapsulated in a memoized object.
+ *
+ * The CAR and CDR can be either normal or memoized. If ENV isn't
+ * specified, the top-level environment of the current module will
+ * be assumed. All environments must match.
+ *
+ * - procedure: make-gloc VARIABLE [ENV]
+ *
+ * Return a gloc, encapsulated in a memoized object.
+ *
+ * (Glocs can't exist in normal list structures, since they will
+ * be mistaken for structs.)
+ *
+ * - procedure: gloc? OBJECT
+ *
+ * Return #t if OBJECT is a memoized gloc.
+ *
+ * - procedure: make-iloc FRAME BINDING CDRP
+ *
+ * Return an iloc referring to frame no. FRAME, binding
+ * no. BINDING. If CDRP is non-#f, the iloc is referring to a
+ * frame consisting of a single pair, with the value stored in the
+ * CDR.
+ *
+ * - procedure: iloc? OBJECT
+ *
+ * Return #t if OBJECT is an iloc.
+ *
+ * - procedure: mem->proc MEMOIZED
+ *
+ * Construct a closure from the memoized lambda expression MEMOIZED
+ *
+ * WARNING! The code is not copied!
+ *
+ * - procedure: proc->mem CLOSURE
+ *
+ * Turn the closure CLOSURE into a memoized object.
+ *
+ * WARNING! The code is not copied!
+ *
+ * - constant: SCM_IM_AND
+ * - constant: SCM_IM_BEGIN
+ * - constant: SCM_IM_CASE
+ * - constant: SCM_IM_COND
+ * - constant: SCM_IM_DO
+ * - constant: SCM_IM_IF
+ * - constant: SCM_IM_LAMBDA
+ * - constant: SCM_IM_LET
+ * - constant: SCM_IM_LETSTAR
+ * - constant: SCM_IM_LETREC
+ * - constant: SCM_IM_OR
+ * - constant: SCM_IM_QUOTE
+ * - constant: SCM_IM_SET
+ * - constant: SCM_IM_DEFINE
+ * - constant: SCM_IM_APPLY
+ * - constant: SCM_IM_CONT
+ * - constant: SCM_IM_DISPATCH
+ */
+
+#include "variable.h"
+#include "procs.h"
+
+SCM_PROC (s_make_gloc, "make-gloc", 1, 1, 0, scm_make_gloc);
+
SCM
-scm_unmemoize (SCM m)
-#else
+scm_make_gloc (var, env)
+ SCM var;
+ SCM env;
+{
+#if 1 /* Unsafe */
+ if (SCM_NIMP (var) && SCM_CONSP (var))
+ var = scm_cons (SCM_BOOL_F, var);
+ else
+#endif
+ SCM_ASSERT (SCM_NIMP (var) && SCM_VARIABLEP (var),
+ var,
+ SCM_ARG1,
+ s_make_gloc);
+ if (SCM_UNBNDP (env))
+ env = scm_top_level_env (SCM_CDR (scm_top_level_lookup_closure_var));
+ else
+ SCM_ASSERT (SCM_NULLP (env) || (SCM_NIMP (env) && SCM_CONSP (env)),
+ env,
+ SCM_ARG2,
+ s_make_gloc);
+ return scm_make_memoized (SCM_VARVCELL (var) + 1, env);
+}
+
+SCM_PROC (s_gloc_p, "gloc?", 1, 0, 0, scm_gloc_p);
+
+SCM
+scm_gloc_p (obj)
+ SCM obj;
+{
+ return ((SCM_NIMP (obj)
+ && SCM_MEMOIZEDP (obj)
+ && (SCM_MEMOIZED_EXP (obj) & 7) == 1)
+ ? SCM_BOOL_T
+ : SCM_BOOL_F);
+}
+
+SCM_PROC (s_make_iloc, "make-iloc", 3, 0, 0, scm_make_iloc);
+
+SCM
+scm_make_iloc (frame, binding, cdrp)
+ SCM frame;
+ SCM binding;
+ SCM cdrp;
+{
+ SCM_ASSERT (SCM_INUMP (frame), frame, SCM_ARG1, s_make_iloc);
+ SCM_ASSERT (SCM_INUMP (binding), binding, SCM_ARG2, s_make_iloc);
+ return (SCM_ILOC00
+ + SCM_IFRINC * SCM_INUM (frame)
+ + (SCM_NFALSEP (cdrp) ? SCM_ICDR : 0)
+ + SCM_IDINC * SCM_INUM (binding));
+}
+
+SCM_PROC (s_iloc_p, "iloc?", 1, 0, 0, scm_iloc_p);
+
+SCM
+scm_iloc_p (obj)
+ SCM obj;
+{
+ return SCM_ILOCP (obj) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+
+SCM_PROC (s_memcons, "memcons", 2, 1, 0, scm_memcons);
+
+SCM
+scm_memcons (car, cdr, env)
+ SCM car;
+ SCM cdr;
+ SCM env;
+{
+ if (SCM_NIMP (car) && SCM_MEMOIZEDP (car))
+ {
+ /*fixme* environments may be two different but equal top-level envs */
+ if (!SCM_UNBNDP (env) && SCM_MEMOIZED_ENV (car) != env)
+ scm_misc_error (s_memcons,
+ "environment mismatch arg1 <-> arg3",
+ scm_cons2 (car, env, SCM_EOL));
+ else
+ env = SCM_MEMOIZED_ENV (car);
+ car = SCM_MEMOIZED_EXP (car);
+ }
+ if (SCM_NIMP (cdr) && SCM_MEMOIZEDP (cdr))
+ {
+ if (!SCM_UNBNDP (env) && SCM_MEMOIZED_ENV (cdr) != env)
+ scm_misc_error (s_memcons,
+ "environment mismatch arg2 <-> arg3",
+ scm_cons2 (cdr, env, SCM_EOL));
+ else
+ env = SCM_MEMOIZED_ENV (cdr);
+ cdr = SCM_MEMOIZED_EXP (cdr);
+ }
+ if (SCM_UNBNDP (env))
+ env = scm_top_level_env (SCM_CDR (scm_top_level_lookup_closure_var));
+ else
+ SCM_ASSERT (SCM_NULLP (env) || (SCM_NIMP (env) && SCM_CONSP (env)),
+ env,
+ SCM_ARG3,
+ s_make_iloc);
+ return scm_make_memoized (scm_cons (car, cdr), env);
+}
+
+SCM_PROC (s_mem_to_proc, "mem->proc", 1, 0, 0, scm_mem_to_proc);
+
+SCM
+scm_mem_to_proc (obj)
+ SCM obj;
+{
+ SCM env;
+ SCM_ASSERT (SCM_NIMP (obj) && SCM_MEMOIZEDP (obj),
+ obj,
+ SCM_ARG1,
+ s_mem_to_proc);
+ env = SCM_MEMOIZED_ENV (obj);
+ obj = SCM_MEMOIZED_EXP (obj);
+ if (!(SCM_NIMP (obj) && SCM_CAR (obj) == SCM_IM_LAMBDA))
+ scm_misc_error (s_mem_to_proc,
+ "expected lambda expression",
+ scm_cons (obj, SCM_EOL));
+ return scm_closure (SCM_CDR (obj), env);
+}
+
+SCM_PROC (s_proc_to_mem, "proc->mem", 1, 0, 0, scm_proc_to_mem);
+
+SCM
+scm_proc_to_mem (obj)
+ SCM obj;
+{
+ SCM_ASSERT (SCM_NIMP (obj) && SCM_CLOSUREP (obj),
+ obj,
+ SCM_ARG1,
+ s_proc_to_mem);
+ return scm_make_memoized (scm_cons (SCM_IM_LAMBDA, SCM_CODE (obj)),
+ SCM_ENV (obj));
+}
+
+#endif /* GUILE_DEBUG */
+
+SCM_PROC (s_unmemoize, "unmemoize", 1, 0, 0, scm_unmemoize);
+
SCM
scm_unmemoize (m)
SCM m;
-#endif
{
- SCM_ASSERT (SCM_MEMOIZEDP (m), m, SCM_ARG1, s_unmemoize);
- return scm_unmemocopy (SCM_MEMOEXP (m), SCM_MEMOENV (m));
+ SCM_ASSERT (SCM_NIMP (m) && SCM_MEMOIZEDP (m), m, SCM_ARG1, s_unmemoize);
+ return scm_unmemocopy (SCM_MEMOIZED_EXP (m), SCM_MEMOIZED_ENV (m));
}
SCM_PROC (s_memoized_environment, "memoized-environment", 1, 0, 0, scm_memoized_environment);
-#ifdef __STDC__
-SCM
-scm_memoized_environment (SCM m)
-#else
+
SCM
scm_memoized_environment (m)
SCM m;
-#endif
{
- SCM_ASSERT (SCM_MEMOIZEDP (m), m, SCM_ARG1, s_unmemoize);
- return SCM_MEMOENV (m);
+ SCM_ASSERT (SCM_NIMP (m) && SCM_MEMOIZEDP (m), m, SCM_ARG1, s_unmemoize);
+ return SCM_MEMOIZED_ENV (m);
}
SCM_PROC (s_procedure_name, "procedure-name", 1, 0, 0, scm_procedure_name);
-#ifdef __STDC__
-SCM
-scm_procedure_name (SCM proc)
-#else
+
SCM
scm_procedure_name (proc)
SCM proc;
-#endif
{
SCM_ASSERT(scm_procedure_p (proc) == SCM_BOOL_T,
proc,
SCM_ARG1,
s_procedure_name);
switch (SCM_TYP7 (proc)) {
- case scm_tcs_closures:
+ case scm_tcs_subrs:
+ return SCM_SNAME (proc);
+ default:
{
SCM name = scm_procedure_property (proc, scm_i_name);
#if 0
- /* Procedure property scm_i_procname not implemented yet... */
+ /* Source property scm_i_procname not implemented yet... */
SCM name = scm_source_property (SCM_CAR (SCM_CDR (SCM_CODE (proc))), scm_i_procname);
if (SCM_FALSEP (name))
name = scm_procedure_property (proc, scm_i_name);
#endif
+ if (SCM_FALSEP (name))
+ name = scm_procedure_property (proc, scm_i_inner_name);
return name;
}
- case scm_tcs_subrs:
- return SCM_SNAME (proc);
- default:
- return SCM_BOOL_F;
}
}
SCM_PROC (s_procedure_source, "procedure-source", 1, 0, 0, scm_procedure_source);
-#ifdef __STDC__
-SCM
-scm_procedure_source (SCM proc)
-#else
+
SCM
scm_procedure_source (proc)
SCM proc;
-#endif
{
SCM_ASSERT(SCM_NIMP (proc), proc, SCM_ARG1, s_procedure_source);
switch (SCM_TYP7 (proc)) {
}
SCM_PROC (s_procedure_environment, "procedure-environment", 1, 0, 0, scm_procedure_environment);
-#ifdef __STDC__
-SCM
-scm_procedure_environment (SCM proc)
-#else
+
SCM
scm_procedure_environment (proc)
SCM proc;
-#endif
{
SCM_ASSERT (SCM_NIMP (proc), proc, SCM_ARG1, s_procedure_environment);
switch (SCM_TYP7 (proc)) {
}
}
+\f
/* Eval in a local environment. We would like to have the ability to
- * evaluate in a specified local environment, but due to the memoization
- * this isn't normally possible. We solve it by copying the code before
- * evaluating. Probably the best solution would be to have eval.c generate
- * yet another evaluator. They are not very big actually.
+ * evaluate in a specified local environment, but due to the
+ * memoization this isn't normally possible. We solve it by copying
+ * the code before evaluating. One solution would be to have eval.c
+ * generate yet another evaluator. They are not very big actually.
*/
-SCM_PROC (s_local_eval, "local-eval", 2, 0, 0, scm_local_eval);
-#ifdef __STDC__
-SCM
-scm_local_eval (SCM exp, SCM env)
-#else
+SCM_PROC (s_local_eval, "local-eval", 1, 1, 0, scm_local_eval);
+
SCM
scm_local_eval (exp, env)
SCM exp;
SCM env;
-#endif
{
+ if (SCM_UNBNDP (env))
+ {
+ SCM_ASSERT (SCM_NIMP (exp) && SCM_MEMOIZEDP (exp), exp, SCM_ARG1, s_local_eval);
+ return scm_eval_3 (SCM_MEMOIZED_EXP (exp), 0, SCM_MEMOIZED_ENV (exp));
+ }
return scm_eval_3 (exp, 1, env);
}
-/* {Stack Frames}
- *
- * The stack is a list of stackframes, from root to current.
- *
- * A stackframe is a list of virtual stackframes, which occur due to
- * the evaluators tail recursion. A virtual stackframe normally
- * corresponds to an eval/apply pair, but macros and special forms
- * (which are implemented as macros in scm...) only have eval
- * information and apply calls leads to apply only frames.
- *
- * A virtual stackframe is either a property list or the symbol
- * ... which marks the location of virtual stackframes which could not
- * be stored with the current debug-depth.
- *
- * Property Type Description
- *
- * These three only present in eval frames:
- *
- * sexpr memoized Source code expression and environment.
- * proc procedure The procedure being applied.
- * (Not present if pre-apply state.)
- * args list The arguments evaluated so far.
- * eval-args boolean True if evaluation of arguments not finished.
- */
+SCM
+scm_start_stack (id, exp, env)
+ SCM id;
+ SCM exp;
+ SCM env;
+{
+ SCM answer;
+ scm_debug_frame vframe;
+ scm_debug_info vframe_vect_body;
+ vframe.prev = scm_last_debug_frame;
+ vframe.status = SCM_VOIDFRAME;
+ vframe.vect = &vframe_vect_body;
+ vframe.vect[0].id = id;
+ scm_last_debug_frame = &vframe;
+ answer = scm_eval_3 (exp, 1, env);
+ scm_last_debug_frame = vframe.prev;
+ return answer;
+}
+
+SCM_SYNTAX(s_start_stack, "start-stack", scm_makacro, scm_m_start_stack);
+
+static SCM
+scm_m_start_stack (exp, env)
+ SCM exp;
+ SCM env;
+{
+ exp = SCM_CDR (exp);
+ SCM_ASSERT (SCM_NIMP (exp)
+ && SCM_ECONSP (exp)
+ && SCM_NIMP (SCM_CDR (exp))
+ && SCM_ECONSP (SCM_CDR (exp))
+ && SCM_NULLP (SCM_CDDR (exp)),
+ exp,
+ SCM_WNA,
+ s_start_stack);
+ return scm_start_stack (scm_eval_car (exp, env), SCM_CADR (exp), env);
+}
/* {Debug Objects}
*
long scm_tc16_debugobj;
-#define DEBUGOBJP(x) (scm_tc16_debugobj == SCM_TYP16 (x))
-#define DBGFRAME(x) SCM_CDR (x)
+static int prindebugobj SCM_P ((SCM obj, SCM port, scm_print_state *pstate));
-#ifdef __STDC__
-static int
-prindebugobj (SCM obj, SCM port, scm_print_state *pstate)
-#else
static int
-prindebugobj (pstate)
+prindebugobj (obj, port, pstate)
SCM obj;
SCM port;
scm_print_state *pstate;
-#endif
{
- scm_gen_puts (scm_regular_string, "#<debug-object ", port);
- scm_intprint (DBGFRAME (obj), 16, port);
- scm_gen_putc ('>', port);
+ scm_puts ("#<debug-object ", port);
+ scm_intprint (SCM_DEBUGOBJ_FRAME (obj), 16, port);
+ scm_putc ('>', port);
return 1;
}
static scm_smobfuns debugobjsmob =
-{scm_mark0, scm_free0, prindebugobj, 0};
+{0, scm_free0, prindebugobj, 0};
SCM_PROC (s_debug_object_p, "debug-object?", 1, 0, 0, scm_debug_object_p);
-#ifdef __STDC__
-SCM
-scm_debug_object_p (SCM obj)
-#else
+
SCM
scm_debug_object_p (obj)
SCM obj;
-#endif
{
- return SCM_NIMP (obj) && DEBUGOBJP (obj) ? SCM_BOOL_T : SCM_BOOL_F;
+ return SCM_NIMP (obj) && SCM_DEBUGOBJP (obj) ? SCM_BOOL_T : SCM_BOOL_F;
}
-#ifdef __STDC__
-SCM
-scm_make_debugobj (scm_debug_frame *frame)
-#else
+
SCM
scm_make_debugobj (frame)
scm_debug_frame *frame;
-#endif
{
register SCM z;
- SCM_DEFER_INTS;
SCM_NEWCELL (z);
- SCM_CAR (z) = scm_tc16_debugobj;
- DBGFRAME (z) = (SCM) frame;
- SCM_ALLOW_INTS;
+ SCM_ENTER_A_SECTION;
+ SCM_SET_DEBUGOBJ_FRAME (z, (SCM) frame);
+ SCM_SETCAR (z, scm_tc16_debugobj);
+ SCM_EXIT_A_SECTION;
return z;
}
-#ifdef __STDC__
-static SCM
-_scm_stack_frame_to_plist (scm_debug_frame *frame, long offset)
-#else
-static SCM
-_scm_stack_frame_to_plist (frame, offset)
- scm_debug_frame *frame;
- long offset;
-#endif
-{
- int size;
- scm_debug_info *info;
- if (SCM_EVALFRAMEP (*frame))
- {
- size = frame->status & SCM_MAX_FRAME_SIZE;
- info = (scm_debug_info *) (*((SCM_STACKITEM **) &frame->vect[size]) + offset);
- if ((info - frame->vect) & 1)
- {
- /* Debug.vect ends with apply info. */
- SCM p;
- --info;
- if (info[1].a.proc == SCM_UNDEFINED)
- p = SCM_EOL;
- else
- p = scm_acons (scm_i_proc,
- info[1].a.proc,
- scm_acons (scm_i_args,
- info[1].a.args,
- SCM_ARGS_READY_P (*frame)
- ? SCM_EOL
- : scm_acons (scm_i_eval_args,
- SCM_BOOL_T,
- SCM_EOL)));
- return scm_acons (scm_i_source,
- scm_make_memoized (info[0].e.exp, info[0].e.env),
- p);
- }
- else
- /* Debug.vect ends with eval info. */
- return scm_acons (scm_i_source,
- scm_make_memoized (info[0].e.exp, info[0].e.env),
- SCM_EOL);
- }
- else
- return scm_acons (scm_i_proc,
- frame->vect[0].a.proc,
- scm_acons (scm_i_args, frame->vect[0].a.args, SCM_EOL));
-}
-
-SCM_PROC (s_last_stack_frame, "last-stack-frame", 1, 0, 0, scm_last_stack_frame);
-#ifdef __STDC__
-SCM
-scm_last_stack_frame (SCM obj)
-#else
-SCM
-scm_last_stack_frame (obj)
- SCM obj;
-#endif
-{
- scm_debug_frame *frame;
- long offset = 0;
- SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_last_stack_frame);
- if (scm_tc16_debugobj == SCM_TYP16 (obj))
- frame = (scm_debug_frame *) DBGFRAME (obj);
- else if (scm_tc7_contin == SCM_TYP7 (obj))
- {
- frame = SCM_DFRAME (obj);
- offset = (SCM_STACKITEM *) (SCM_CHARS (obj) + sizeof (regs)) - SCM_BASE (obj);
-#ifndef STACK_GROWS_UP
- offset += SCM_LENGTH (obj);
-#endif
- }
- else scm_wta (obj, (char *) SCM_ARG1, s_last_stack_frame);
- if (!frame)
- return SCM_BOOL_F;
- return _scm_stack_frame_to_plist ((scm_debug_frame *) ((SCM_STACKITEM *) frame + offset), offset);
-}
+\f
-/* Make a scheme object of the current evaluation stack.
- */
+/* Undocumented debugging procedure */
+#ifdef GUILE_DEBUG
+SCM_PROC (s_debug_hang, "debug-hang", 0, 1, 0, scm_debug_hang);
-SCM_PROC (s_expr_stack, "expr-stack", 0, 1, 0, scm_expr_stack);
-#ifdef __STDC__
SCM
-scm_expr_stack (SCM obj)
-#else
-SCM
-scm_expr_stack (obj)
+scm_debug_hang (obj)
SCM obj;
-#endif
{
- SCM frs = SCM_EOL, vfrs, p;
- int size;
- int max_vfrs = SCM_BACKTRACE_DEPTH;
- scm_debug_info *info;
- scm_debug_frame *frame;
- long offset = 0;
- if (SCM_UNBNDP (obj))
- frame = scm_last_debug_frame;
- else
- {
- SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_expr_stack);
- if (scm_tc16_debugobj == SCM_TYP16 (obj))
- frame = (scm_debug_frame *) DBGFRAME (obj);
- else if (scm_tc7_contin == SCM_TYP7 (obj))
- {
- frame = SCM_DFRAME (obj);
- offset = (SCM_STACKITEM *) (SCM_CHARS (obj) + sizeof (regs)) - SCM_BASE (obj);
-#ifndef STACK_GROWS_UP
- offset += SCM_LENGTH (obj);
-#endif
- }
- else scm_wta (obj, (char *) SCM_ARG1, s_expr_stack);
- }
- for (; frame && max_vfrs > 0; frame = frame->prev)
- {
- frame = (scm_debug_frame *) ((SCM_STACKITEM *) frame + offset);
- p = _scm_stack_frame_to_plist (frame, offset);
- if (SCM_EVALFRAMEP (*frame))
- {
- size = frame->status & SCM_MAX_FRAME_SIZE;
- info = (scm_debug_info *) (*((SCM_STACKITEM **) &frame->vect[size]) + offset);
- vfrs = SCM_EOL;
- if ((info - frame->vect) & 1)
- --info;
- /* Data in the apply part of an eval info frame comes from
- previous stack frame if the scm_debug_info vector is overflowed. */
- else if (SCM_OVERFLOWP (*frame)
- && !SCM_UNBNDP (info[1].a.proc))
- {
- vfrs = scm_cons (p, SCM_EOL);
- --max_vfrs;
- p = scm_acons (scm_i_proc,
- info[1].a.proc,
- scm_acons (scm_i_args, info[1].a.args, SCM_EOL));
- }
- info -= 2;
- vfrs = scm_cons (p, vfrs);
- --max_vfrs;
- if (SCM_OVERFLOWP (*frame))
- vfrs = scm_cons (scm_i_more, vfrs);
- while (info >= frame->vect)
- {
- p = SCM_EOL;
- if (!SCM_UNBNDP (info[1].a.proc))
- p = scm_acons (scm_i_proc,
- info[1].a.proc,
- scm_acons (scm_i_args, info[1].a.args, SCM_EOL));
- p = scm_acons (scm_i_source,
- scm_make_memoized (info[0].e.exp, info[0].e.env),
- p);
- info -= 2;
- vfrs = scm_cons (p, vfrs);
- --max_vfrs;
- }
- }
- else
- {
- vfrs = scm_cons (p, SCM_EOL);
- --max_vfrs;
- }
- frs = scm_cons (vfrs, frs);
- }
- if (max_vfrs <= 0)
- frs = scm_cons (scm_i_more, frs);
- return frs;
+ int go = 0;
+ while (!go) ;
+ return SCM_UNSPECIFIED;
}
-
+#endif
\f
scm_init_debug ()
{
scm_init_opts (scm_debug_options, scm_debug_opts, SCM_N_DEBUG_OPTIONS);
- scm_init_opts (scm_evaluator_traps,
- scm_evaluator_trap_table,
- SCM_N_EVALUATOR_TRAPS);
scm_tc16_memoized = scm_newsmob (&memoizedsmob);
scm_tc16_debugobj = scm_newsmob (&debugobjsmob);
scm_i_args = SCM_CAR (scm_sysintern ("args", SCM_UNDEFINED));
scm_i_eval_args = SCM_CAR (scm_sysintern ("eval-args", SCM_UNDEFINED));
+#ifdef GUILE_DEBUG
+ scm_sysintern ("SCM_IM_AND", SCM_IM_AND);
+ scm_sysintern ("SCM_IM_BEGIN", SCM_IM_BEGIN);
+ scm_sysintern ("SCM_IM_CASE", SCM_IM_CASE);
+ scm_sysintern ("SCM_IM_COND", SCM_IM_COND);
+ scm_sysintern ("SCM_IM_DO", SCM_IM_DO);
+ scm_sysintern ("SCM_IM_IF", SCM_IM_IF);
+ scm_sysintern ("SCM_IM_LAMBDA", SCM_IM_LAMBDA);
+ scm_sysintern ("SCM_IM_LET", SCM_IM_LET);
+ scm_sysintern ("SCM_IM_LETSTAR", SCM_IM_LETSTAR);
+ scm_sysintern ("SCM_IM_LETREC", SCM_IM_LETREC);
+ scm_sysintern ("SCM_IM_OR", SCM_IM_OR);
+ scm_sysintern ("SCM_IM_QUOTE", SCM_IM_QUOTE);
+ scm_sysintern ("SCM_IM_SET_X", SCM_IM_SET_X);
+ scm_sysintern ("SCM_IM_DEFINE", SCM_IM_DEFINE);
+ scm_sysintern ("SCM_IM_APPLY", SCM_IM_APPLY);
+ scm_sysintern ("SCM_IM_CONT", SCM_IM_CONT);
+ scm_sysintern ("SCM_IM_DISPATCH", SCM_IM_DISPATCH);
+#endif
scm_add_feature ("debug-extensions");
#include "debug.x"
HCoop / bpt / guile.git / blobdiff