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c7ecd529 MD |
1 | /* classes: h_files */ |
2 | ||
3 | #ifndef DEBUGH | |
4 | #define DEBUGH | |
78a0461a | 5 | /* Copyright (C) 1995,1996,1998, 1999 Free Software Foundation |
c7ecd529 MD |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2, or (at your option) | |
10 | * any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
19 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
20 | * Boston, MA 02111-1307 USA | |
c7ecd529 MD |
21 | * |
22 | * As a special exception, the Free Software Foundation gives permission | |
23 | * for additional uses of the text contained in its release of GUILE. | |
24 | * | |
25 | * The exception is that, if you link the GUILE library with other files | |
26 | * to produce an executable, this does not by itself cause the | |
27 | * resulting executable to be covered by the GNU General Public License. | |
28 | * Your use of that executable is in no way restricted on account of | |
29 | * linking the GUILE library code into it. | |
30 | * | |
31 | * This exception does not however invalidate any other reasons why | |
32 | * the executable file might be covered by the GNU General Public License. | |
33 | * | |
34 | * This exception applies only to the code released by the | |
35 | * Free Software Foundation under the name GUILE. If you copy | |
36 | * code from other Free Software Foundation releases into a copy of | |
37 | * GUILE, as the General Public License permits, the exception does | |
38 | * not apply to the code that you add in this way. To avoid misleading | |
39 | * anyone as to the status of such modified files, you must delete | |
40 | * this exception notice from them. | |
41 | * | |
42 | * If you write modifications of your own for GUILE, it is your choice | |
43 | * whether to permit this exception to apply to your modifications. | |
44 | * If you do not wish that, delete this exception notice. | |
45 | * | |
46 | * The author can be reached at djurfeldt@nada.kth.se | |
82892bed | 47 | * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN */ |
d3a6bc94 GB |
48 | |
49 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
50 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
c7ecd529 MD |
51 | \f |
52 | ||
b4309c3c | 53 | #include "libguile/__scm.h" |
c7ecd529 | 54 | |
e771f866 | 55 | #include "libguile/options.h" |
c7ecd529 MD |
56 | \f |
57 | ||
58 | /* | |
59 | * Here comes some definitions for the debugging machinery. | |
60 | * It might seem strange to represent debug flags as ints, | |
61 | * but consider that any particular piece of code is normally | |
62 | * only interested in one flag at a time. This is then | |
63 | * the most efficient representation. | |
64 | */ | |
65 | ||
66 | /* {Options} | |
67 | */ | |
68 | ||
33b97402 | 69 | /* scm_debug_opts is defined in eval.c. |
5e8d7fd4 MD |
70 | */ |
71 | ||
c7ecd529 MD |
72 | extern scm_option scm_debug_opts[]; |
73 | ||
5e8d7fd4 MD |
74 | #define SCM_CHEAPTRAPS_P scm_debug_opts[0].val |
75 | #define SCM_BREAKPOINTS_P scm_debug_opts[1].val | |
76 | #define SCM_TRACE_P scm_debug_opts[2].val | |
77 | #define SCM_REC_PROCNAMES_P scm_debug_opts[3].val | |
78 | #define SCM_BACKWARDS_P scm_debug_opts[4].val | |
274dc5fd MD |
79 | #define SCM_BACKTRACE_WIDTH scm_debug_opts[5].val |
80 | #define SCM_BACKTRACE_INDENT scm_debug_opts[6].val | |
81 | #define SCM_N_FRAMES scm_debug_opts[7].val | |
82 | #define SCM_BACKTRACE_MAXDEPTH scm_debug_opts[8].val | |
83 | #define SCM_BACKTRACE_DEPTH scm_debug_opts[9].val | |
84 | #define SCM_BACKTRACE_P scm_debug_opts[10].val | |
85 | #define SCM_DEVAL_P scm_debug_opts[11].val | |
86 | #define SCM_STACK_LIMIT scm_debug_opts[12].val | |
87 | #define SCM_N_DEBUG_OPTIONS 13 | |
c7ecd529 | 88 | |
7866a09b | 89 | extern SCM (*scm_ceval_ptr) (SCM exp, SCM env); |
1cc91f1b | 90 | |
5e8d7fd4 MD |
91 | extern int scm_debug_mode; |
92 | extern int scm_check_entry_p, scm_check_apply_p, scm_check_exit_p; | |
c7ecd529 | 93 | |
5e8d7fd4 MD |
94 | #define CHECK_ENTRY scm_check_entry_p |
95 | #define CHECK_APPLY scm_check_apply_p | |
96 | #define CHECK_EXIT scm_check_exit_p | |
c7ecd529 | 97 | |
5e8d7fd4 | 98 | #define SCM_RESET_DEBUG_MODE \ |
d3a6bc94 | 99 | do {\ |
a8485f4d MD |
100 | CHECK_ENTRY = SCM_ENTER_FRAME_P || SCM_BREAKPOINTS_P;\ |
101 | CHECK_APPLY = SCM_APPLY_FRAME_P || SCM_TRACE_P;\ | |
102 | CHECK_EXIT = SCM_EXIT_FRAME_P || SCM_TRACE_P;\ | |
44b5e41d | 103 | scm_debug_mode = SCM_DEVAL_P || CHECK_ENTRY || CHECK_APPLY || CHECK_EXIT;\ |
5e8d7fd4 | 104 | scm_ceval_ptr = scm_debug_mode ? scm_deval : scm_ceval;\ |
d3a6bc94 | 105 | } while (0) |
c7ecd529 MD |
106 | |
107 | ||
108 | /* {Evaluator} | |
109 | */ | |
110 | ||
111 | typedef union scm_debug_info | |
112 | { | |
113 | struct { SCM exp, env; } e; | |
114 | struct { SCM proc, args; } a; | |
473c250d | 115 | SCM id; |
c7ecd529 MD |
116 | } scm_debug_info; |
117 | ||
118 | extern int scm_debug_eframe_size; | |
119 | ||
120 | typedef struct scm_debug_frame | |
121 | { | |
122 | struct scm_debug_frame *prev; | |
123 | long status; | |
c0ab1b8d JB |
124 | scm_debug_info *vect; |
125 | scm_debug_info *info; | |
c7ecd529 MD |
126 | } scm_debug_frame; |
127 | ||
1646d37b MD |
128 | #ifndef USE_THREADS |
129 | extern scm_debug_frame *scm_last_debug_frame; | |
130 | #endif | |
c7ecd529 | 131 | |
77debe3c MD |
132 | #define SCM_EVALFRAME (0L << 11) |
133 | #define SCM_APPLYFRAME (1L << 11) | |
134 | #define SCM_VOIDFRAME (3L << 11) | |
135 | #define SCM_MACROEXPF (1L << 10) | |
fcbb26b2 MD |
136 | #define SCM_TAILREC (1L << 9) |
137 | #define SCM_TRACED_FRAME (1L << 8) | |
5e8d7fd4 | 138 | #define SCM_ARGS_READY (1L << 7) |
fcbb26b2 | 139 | #define SCM_DOVERFLOW (1L << 6) |
5e8d7fd4 MD |
140 | #define SCM_MAX_FRAME_SIZE 63 /* also used as a mask for the size field */ |
141 | ||
77debe3c | 142 | #define SCM_FRAMETYPE (3L << 11) |
fcbb26b2 | 143 | |
77debe3c | 144 | #define SCM_EVALFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_EVALFRAME) |
fcbb26b2 | 145 | #define SCM_APPLYFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_APPLYFRAME) |
473c250d | 146 | #define SCM_VOIDFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_VOIDFRAME) |
5e8d7fd4 MD |
147 | #define SCM_OVERFLOWP(x) (((x).status & SCM_DOVERFLOW) != 0) |
148 | #define SCM_ARGS_READY_P(x) (((x).status & SCM_ARGS_READY) != 0) | |
149 | #define SCM_TRACED_FRAME_P(x) (((x).status & SCM_TRACED_FRAME) != 0) | |
150 | #define SCM_TAILRECP(x) (((x).status & SCM_TAILREC) != 0) | |
77debe3c | 151 | #define SCM_MACROEXPP(x) (((x).status & SCM_MACROEXPF) != 0) |
5e8d7fd4 MD |
152 | #define SCM_SET_OVERFLOW(x) ((x).status |= SCM_DOVERFLOW) |
153 | #define SCM_SET_ARGSREADY(x) ((x).status |= SCM_ARGS_READY) | |
154 | #define SCM_CLEAR_ARGSREADY(x) ((x).status &= ~SCM_ARGS_READY) | |
155 | #define SCM_SET_TRACED_FRAME(x) ((x).status |= SCM_TRACED_FRAME) | |
156 | #define SCM_CLEAR_TRACED_FRAME(x) ((x).status &= ~SCM_TRACED_FRAME) | |
157 | #define SCM_SET_TAILREC(x) ((x).status |= SCM_TAILREC) | |
77debe3c MD |
158 | #define SCM_SET_MACROEXP(x) ((x).status |= SCM_MACROEXPF) |
159 | #define SCM_CLEAR_MACROEXP(x) ((x).status &= ~SCM_MACROEXPF) | |
5e8d7fd4 MD |
160 | |
161 | #define SCM_DEBUGGINGP scm_debug_mode | |
162 | #define SCM_DSIDEVAL(x, env) if NIMP(x) scm_deval((x), (env)) | |
c7ecd529 | 163 | |
fcbb26b2 MD |
164 | /* {Debug Objects} |
165 | */ | |
166 | ||
167 | extern long scm_tc16_debugobj; | |
168 | ||
d3a6bc94 | 169 | #define SCM_DEBUGOBJP(x) (SCM_NIMP(x) && (scm_tc16_debugobj == SCM_TYP16 (x))) |
fcbb26b2 | 170 | #define SCM_DEBUGOBJ_FRAME(x) SCM_CDR (x) |
a6c64c3c | 171 | #define SCM_SET_DEBUGOBJ_FRAME(x, f) SCM_SETCDR (x, f) |
fcbb26b2 | 172 | |
c7ecd529 MD |
173 | /* {Memoized Source} |
174 | */ | |
175 | ||
176 | extern long scm_tc16_memoized; | |
177 | ||
d3a6bc94 | 178 | #define SCM_MEMOIZEDP(x) (SCM_NIMP(x) && (scm_tc16_memoized == SCM_TYP16 (x))) |
fcbb26b2 MD |
179 | #define SCM_MEMOIZED_EXP(x) SCM_CAR (SCM_CDR (x)) |
180 | #define SCM_MEMOIZED_ENV(x) SCM_CDR (SCM_CDR (x)) | |
c7ecd529 MD |
181 | |
182 | \f | |
183 | ||
7866a09b GB |
184 | extern SCM * scm_lookup_cstr (char *str, int len, SCM env); |
185 | extern SCM * scm_lookup_soft (SCM var, SCM genv); | |
186 | extern SCM scm_evstr (char *str); | |
187 | extern SCM scm_eval_string (SCM str); | |
188 | extern int scm_ready_p (void); | |
189 | extern void debug_print (SCM obj); | |
190 | extern SCM scm_debug_object_p (SCM obj); | |
191 | extern SCM scm_local_eval (SCM exp, SCM env); | |
192 | extern SCM scm_reverse_lookup (SCM env, SCM data); | |
193 | extern SCM scm_start_stack (SCM id, SCM exp, SCM env); | |
194 | extern SCM scm_procedure_environment (SCM proc); | |
195 | extern SCM scm_procedure_source (SCM proc); | |
196 | extern SCM scm_procedure_name (SCM proc); | |
197 | extern SCM scm_memoized_environment (SCM m); | |
198 | extern SCM scm_make_memoized (SCM exp, SCM env); | |
199 | extern SCM scm_memoized_p (SCM obj); | |
200 | extern SCM scm_with_traps (SCM thunk); | |
201 | extern SCM scm_evaluator_traps (SCM setting); | |
202 | extern SCM scm_debug_options (SCM setting); | |
203 | extern SCM scm_unmemoize (SCM memoized); | |
204 | extern SCM scm_make_debugobj (scm_debug_frame* debug); | |
205 | extern void scm_init_debug (void); | |
c7ecd529 | 206 | |
f3667f52 | 207 | #ifdef GUILE_DEBUG |
7866a09b GB |
208 | extern SCM scm_make_gloc (SCM var, SCM env); |
209 | extern SCM scm_gloc_p (SCM obj); | |
210 | extern SCM scm_make_iloc (SCM frame, SCM binding, SCM cdrp); | |
211 | extern SCM scm_iloc_p (SCM obj); | |
212 | extern SCM scm_memcons (SCM car, SCM cdr, SCM env); | |
213 | extern SCM scm_mem_to_proc (SCM obj); | |
214 | extern SCM scm_proc_to_mem (SCM obj); | |
215 | extern SCM scm_debug_hang (SCM obj); | |
f3667f52 JB |
216 | #endif /*GUILE_DEBUG*/ |
217 | ||
c7ecd529 | 218 | #endif /* DEBUGH */ |
89e00824 ML |
219 | |
220 | /* | |
221 | Local Variables: | |
222 | c-file-style: "gnu" | |
223 | End: | |
224 | */ |