/* Debugging extensions for Guile
- * Copyright (C) 1995, 1996 Mikael Djurfeldt
+ * Copyright (C) 1995, 1996 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"
*/
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;
}
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 ans;
SCM_DEFER_INTS;
}
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 cont;
+ SCM val;
{
SCM_DEFER_INTS;
SCM_ENTER_FRAME_P = SCM_EXIT_FRAME_P = 1;
SCM_RESET_DEBUG_MODE;
SCM_ALLOW_INTS;
- scm_throw (cont, val);
+ scm_call_continuation (cont, val);
return SCM_BOOL_F; /* never returns */
}
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_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_NEWCELL (z);
- SCM_CAR (z) = exp;
- SCM_CDR (z) = env;
+ SCM_SETCAR (z, exp);
+ SCM_SETCDR (z, env);
SCM_NEWCELL (ans);
- SCM_CAR (ans) = scm_tc16_memoized;
- SCM_CDR (ans) = z;
+ SCM_SETCAR (ans, scm_tc16_memoized);
+ SCM_SETCDR (ans, z);
SCM_ALLOW_INTS;
return ans;
}
SCM_PROC (s_unmemoize, "unmemoize", 1, 0, 0, scm_unmemoize);
-#ifdef __STDC__
-SCM
-scm_unmemoize (SCM m)
-#else
+
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,
s_procedure_name);
switch (SCM_TYP7 (proc)) {
case scm_tcs_closures:
+ case scm_tc7_cclo:
{
SCM name = scm_procedure_property (proc, scm_i_name);
#if 0
}
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.
- */
+static char s_start_stack[] = "start-stack";
+SCM
+scm_m_start_stack (exp, env)
+ SCM exp;
+ SCM env;
+{
+ SCM answer;
+ scm_debug_frame vframe;
+ scm_debug_info vframe_vect_body;
+ 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);
+ vframe.prev = scm_last_debug_frame;
+ vframe.status = SCM_VOIDFRAME;
+ vframe.vect = &vframe_vect_body;
+ vframe.vect[0].id = scm_eval_car (exp, env);
+ scm_last_debug_frame = &vframe;
+ answer = scm_eval_car (SCM_CDR (exp), env);
+ scm_last_debug_frame = vframe.prev;
+ return answer;
+}
/* {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_intprint (SCM_DEBUGOBJ_FRAME (obj), 16, port);
scm_gen_putc ('>', port);
return 1;
}
{scm_mark0, 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_SETCAR (z, scm_tc16_debugobj);
+ SCM_SET_DEBUGOBJ_FRAME (z, (SCM) frame);
SCM_ALLOW_INTS;
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 = last_debug_info_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_i_args = SCM_CAR (scm_sysintern ("args", SCM_UNDEFINED));
scm_i_eval_args = SCM_CAR (scm_sysintern ("eval-args", SCM_UNDEFINED));
+ scm_make_synt (s_start_stack, scm_makacro, scm_m_start_stack);
+
scm_add_feature ("debug-extensions");
#include "debug.x"
HCoop / bpt / guile.git / blobdiff