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c7ecd529 MD |
1 | /* classes: h_files */ |
2 | ||
3 | #ifndef DEBUGH | |
4 | #define DEBUGH | |
1e598865 | 5 | /* Copyright (C) 1995,1996 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 */ |
c7ecd529 MD |
48 | \f |
49 | ||
b4309c3c | 50 | #include "libguile/__scm.h" |
c7ecd529 | 51 | |
e771f866 | 52 | #include "libguile/options.h" |
c7ecd529 MD |
53 | \f |
54 | ||
55 | /* | |
56 | * Here comes some definitions for the debugging machinery. | |
57 | * It might seem strange to represent debug flags as ints, | |
58 | * but consider that any particular piece of code is normally | |
59 | * only interested in one flag at a time. This is then | |
60 | * the most efficient representation. | |
61 | */ | |
62 | ||
63 | /* {Options} | |
64 | */ | |
65 | ||
33b97402 | 66 | /* scm_debug_opts is defined in eval.c. |
5e8d7fd4 MD |
67 | */ |
68 | ||
c7ecd529 MD |
69 | extern scm_option scm_debug_opts[]; |
70 | ||
5e8d7fd4 MD |
71 | #define SCM_CHEAPTRAPS_P scm_debug_opts[0].val |
72 | #define SCM_BREAKPOINTS_P scm_debug_opts[1].val | |
73 | #define SCM_TRACE_P scm_debug_opts[2].val | |
74 | #define SCM_REC_PROCNAMES_P scm_debug_opts[3].val | |
75 | #define SCM_BACKWARDS_P scm_debug_opts[4].val | |
fcbb26b2 MD |
76 | #define SCM_BACKTRACE_INDENT scm_debug_opts[5].val |
77 | #define SCM_N_FRAMES scm_debug_opts[6].val | |
78 | #define SCM_BACKTRACE_MAXDEPTH scm_debug_opts[7].val | |
79 | #define SCM_BACKTRACE_DEPTH scm_debug_opts[8].val | |
80 | #define SCM_BACKTRACE_P scm_debug_opts[9].val | |
81 | #define SCM_DEVAL_P scm_debug_opts[10].val | |
82 | #define SCM_STACK_LIMIT scm_debug_opts[11].val | |
83 | #define SCM_N_DEBUG_OPTIONS 12 | |
c7ecd529 | 84 | |
1cc91f1b JB |
85 | extern SCM (*scm_ceval_ptr) SCM_P ((SCM exp, SCM env)); |
86 | ||
5e8d7fd4 MD |
87 | extern int scm_debug_mode; |
88 | extern int scm_check_entry_p, scm_check_apply_p, scm_check_exit_p; | |
c7ecd529 | 89 | |
5e8d7fd4 MD |
90 | #define CHECK_ENTRY scm_check_entry_p |
91 | #define CHECK_APPLY scm_check_apply_p | |
92 | #define CHECK_EXIT scm_check_exit_p | |
c7ecd529 | 93 | |
5e8d7fd4 | 94 | #define SCM_RESET_DEBUG_MODE \ |
c7ecd529 | 95 | {\ |
a8485f4d MD |
96 | CHECK_ENTRY = SCM_ENTER_FRAME_P || SCM_BREAKPOINTS_P;\ |
97 | CHECK_APPLY = SCM_APPLY_FRAME_P || SCM_TRACE_P;\ | |
98 | CHECK_EXIT = SCM_EXIT_FRAME_P || SCM_TRACE_P;\ | |
44b5e41d | 99 | scm_debug_mode = SCM_DEVAL_P || CHECK_ENTRY || CHECK_APPLY || CHECK_EXIT;\ |
5e8d7fd4 | 100 | scm_ceval_ptr = scm_debug_mode ? scm_deval : scm_ceval;\ |
c7ecd529 MD |
101 | } |
102 | ||
103 | ||
104 | /* {Evaluator} | |
105 | */ | |
106 | ||
107 | typedef union scm_debug_info | |
108 | { | |
109 | struct { SCM exp, env; } e; | |
110 | struct { SCM proc, args; } a; | |
473c250d | 111 | SCM id; |
c7ecd529 MD |
112 | } scm_debug_info; |
113 | ||
114 | extern int scm_debug_eframe_size; | |
115 | ||
116 | typedef struct scm_debug_frame | |
117 | { | |
118 | struct scm_debug_frame *prev; | |
119 | long status; | |
c0ab1b8d JB |
120 | scm_debug_info *vect; |
121 | scm_debug_info *info; | |
c7ecd529 MD |
122 | } scm_debug_frame; |
123 | ||
1646d37b MD |
124 | #ifndef USE_THREADS |
125 | extern scm_debug_frame *scm_last_debug_frame; | |
126 | #endif | |
c7ecd529 | 127 | |
fcbb26b2 MD |
128 | #define SCM_EVALFRAME (0L << 10) |
129 | #define SCM_APPLYFRAME (1L << 10) | |
473c250d | 130 | #define SCM_VOIDFRAME (2L << 10) |
fcbb26b2 MD |
131 | #define SCM_TAILREC (1L << 9) |
132 | #define SCM_TRACED_FRAME (1L << 8) | |
5e8d7fd4 | 133 | #define SCM_ARGS_READY (1L << 7) |
fcbb26b2 | 134 | #define SCM_DOVERFLOW (1L << 6) |
5e8d7fd4 MD |
135 | #define SCM_MAX_FRAME_SIZE 63 /* also used as a mask for the size field */ |
136 | ||
473c250d | 137 | #define SCM_FRAMETYPE (3L << 10) |
fcbb26b2 MD |
138 | |
139 | #define SCM_EVALFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_EVALFRAME) | |
140 | #define SCM_APPLYFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_APPLYFRAME) | |
473c250d | 141 | #define SCM_VOIDFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_VOIDFRAME) |
5e8d7fd4 MD |
142 | #define SCM_OVERFLOWP(x) (((x).status & SCM_DOVERFLOW) != 0) |
143 | #define SCM_ARGS_READY_P(x) (((x).status & SCM_ARGS_READY) != 0) | |
144 | #define SCM_TRACED_FRAME_P(x) (((x).status & SCM_TRACED_FRAME) != 0) | |
145 | #define SCM_TAILRECP(x) (((x).status & SCM_TAILREC) != 0) | |
146 | #define SCM_SET_OVERFLOW(x) ((x).status |= SCM_DOVERFLOW) | |
147 | #define SCM_SET_ARGSREADY(x) ((x).status |= SCM_ARGS_READY) | |
148 | #define SCM_CLEAR_ARGSREADY(x) ((x).status &= ~SCM_ARGS_READY) | |
149 | #define SCM_SET_TRACED_FRAME(x) ((x).status |= SCM_TRACED_FRAME) | |
150 | #define SCM_CLEAR_TRACED_FRAME(x) ((x).status &= ~SCM_TRACED_FRAME) | |
151 | #define SCM_SET_TAILREC(x) ((x).status |= SCM_TAILREC) | |
152 | ||
153 | #define SCM_DEBUGGINGP scm_debug_mode | |
154 | #define SCM_DSIDEVAL(x, env) if NIMP(x) scm_deval((x), (env)) | |
c7ecd529 | 155 | |
fcbb26b2 MD |
156 | /* {Debug Objects} |
157 | */ | |
158 | ||
159 | extern long scm_tc16_debugobj; | |
160 | ||
161 | #define SCM_DEBUGOBJP(x) (scm_tc16_debugobj == SCM_TYP16 (x)) | |
162 | #define SCM_DEBUGOBJ_FRAME(x) SCM_CDR (x) | |
a6c64c3c | 163 | #define SCM_SET_DEBUGOBJ_FRAME(x, f) SCM_SETCDR (x, f) |
fcbb26b2 | 164 | |
c7ecd529 MD |
165 | /* {Memoized Source} |
166 | */ | |
167 | ||
168 | extern long scm_tc16_memoized; | |
169 | ||
170 | #define SCM_MEMOIZEDP(x) (scm_tc16_memoized == SCM_TYP16 (x)) | |
fcbb26b2 MD |
171 | #define SCM_MEMOIZED_EXP(x) SCM_CAR (SCM_CDR (x)) |
172 | #define SCM_MEMOIZED_ENV(x) SCM_CDR (SCM_CDR (x)) | |
c7ecd529 MD |
173 | |
174 | \f | |
175 | ||
1cc91f1b JB |
176 | extern SCM * scm_lookup_cstr SCM_P ((char *str, int len, SCM env)); |
177 | extern SCM * scm_lookup_soft SCM_P ((SCM var, SCM genv)); | |
178 | extern SCM scm_evstr SCM_P ((char *str)); | |
179 | extern SCM scm_eval_string SCM_P ((SCM str)); | |
180 | extern int scm_ready_p SCM_P ((void)); | |
181 | extern void debug_print SCM_P ((SCM obj)); | |
1cc91f1b JB |
182 | extern SCM scm_debug_object_p SCM_P ((SCM obj)); |
183 | extern SCM scm_local_eval SCM_P ((SCM exp, SCM env)); | |
9057c417 | 184 | extern SCM scm_start_stack SCM_P ((SCM id, SCM exp, SCM env)); |
1cc91f1b JB |
185 | extern SCM scm_procedure_environment SCM_P ((SCM proc)); |
186 | extern SCM scm_procedure_source SCM_P ((SCM proc)); | |
187 | extern SCM scm_procedure_name SCM_P ((SCM proc)); | |
188 | extern SCM scm_memoized_environment SCM_P ((SCM m)); | |
189 | extern SCM scm_make_memoized SCM_P ((SCM exp, SCM env)); | |
190 | extern SCM scm_memoized_p SCM_P ((SCM obj)); | |
260b1416 | 191 | extern SCM scm_with_traps SCM_P ((SCM thunk)); |
1cc91f1b JB |
192 | extern SCM scm_evaluator_traps SCM_P ((SCM setting)); |
193 | extern SCM scm_debug_options SCM_P ((SCM setting)); | |
194 | extern SCM scm_unmemoize SCM_P ((SCM memoized)); | |
195 | extern SCM scm_make_debugobj SCM_P ((scm_debug_frame* debug)); | |
196 | extern void scm_init_debug SCM_P ((void)); | |
c7ecd529 MD |
197 | |
198 | #endif /* DEBUGH */ |