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428
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1 /* Execution of byte code produced by bytecomp.el.
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2 Implementation of compiled-function objects.
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3 Copyright (C) 1992, 1993 Free Software Foundation, Inc.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Mule 2.0, FSF 19.30. */
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23
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24 /* This file has been Mule-ized. */
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25
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26
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27 /* Authorship:
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28
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29 FSF: long ago.
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30
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31 hacked on by jwz@jwz.org 1991-06
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32 o added a compile-time switch to turn on simple sanity checking;
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33 o put back the obsolete byte-codes for error-detection;
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34 o added a new instruction, unbind_all, which I will use for
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35 tail-recursion elimination;
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36 o made temp_output_buffer_show be called with the right number
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37 of args;
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38 o made the new bytecodes be called with args in the right order;
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39 o added metering support.
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40
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41 by Hallvard:
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42 o added relative jump instructions;
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43 o all conditionals now only do QUIT if they jump.
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44
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45 Ben Wing: some changes for Mule, 1995-06.
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46
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47 Martin Buchholz: performance hacking, 1998-09.
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48 See Internals Manual, Evaluation.
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49 */
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50
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51 #include <config.h>
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52 #include "lisp.h"
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53 #include "backtrace.h"
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54 #include "buffer.h"
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55 #include "bytecode.h"
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56 #include "opaque.h"
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57 #include "syntax.h"
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58
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59 EXFUN (Ffetch_bytecode, 1);
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60
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61 Lisp_Object Qbyte_code, Qcompiled_functionp, Qinvalid_byte_code;
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62
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63 enum Opcode /* Byte codes */
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64 {
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65 Bvarref = 010,
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66 Bvarset = 020,
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67 Bvarbind = 030,
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68 Bcall = 040,
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69 Bunbind = 050,
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70
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71 Bnth = 070,
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72 Bsymbolp = 071,
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73 Bconsp = 072,
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74 Bstringp = 073,
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75 Blistp = 074,
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76 Bold_eq = 075,
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77 Bold_memq = 076,
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78 Bnot = 077,
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79 Bcar = 0100,
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80 Bcdr = 0101,
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81 Bcons = 0102,
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82 Blist1 = 0103,
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83 Blist2 = 0104,
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84 Blist3 = 0105,
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85 Blist4 = 0106,
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86 Blength = 0107,
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87 Baref = 0110,
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88 Baset = 0111,
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89 Bsymbol_value = 0112,
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90 Bsymbol_function = 0113,
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91 Bset = 0114,
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92 Bfset = 0115,
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93 Bget = 0116,
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94 Bsubstring = 0117,
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95 Bconcat2 = 0120,
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96 Bconcat3 = 0121,
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97 Bconcat4 = 0122,
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98 Bsub1 = 0123,
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99 Badd1 = 0124,
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100 Beqlsign = 0125,
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101 Bgtr = 0126,
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102 Blss = 0127,
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103 Bleq = 0130,
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104 Bgeq = 0131,
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105 Bdiff = 0132,
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106 Bnegate = 0133,
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107 Bplus = 0134,
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108 Bmax = 0135,
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109 Bmin = 0136,
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110 Bmult = 0137,
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111
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112 Bpoint = 0140,
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113 Beq = 0141, /* was Bmark,
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114 but no longer generated as of v18 */
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115 Bgoto_char = 0142,
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116 Binsert = 0143,
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117 Bpoint_max = 0144,
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118 Bpoint_min = 0145,
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119 Bchar_after = 0146,
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120 Bfollowing_char = 0147,
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121 Bpreceding_char = 0150,
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122 Bcurrent_column = 0151,
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123 Bindent_to = 0152,
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|
124 Bequal = 0153, /* was Bscan_buffer,
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|
125 but no longer generated as of v18 */
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|
126 Beolp = 0154,
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127 Beobp = 0155,
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128 Bbolp = 0156,
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129 Bbobp = 0157,
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130 Bcurrent_buffer = 0160,
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131 Bset_buffer = 0161,
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132 Bsave_current_buffer = 0162, /* was Bread_char,
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133 but no longer generated as of v19 */
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|
134 Bmemq = 0163, /* was Bset_mark,
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|
135 but no longer generated as of v18 */
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|
136 Binteractive_p = 0164, /* Needed since interactive-p takes
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137 unevalled args */
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|
138 Bforward_char = 0165,
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139 Bforward_word = 0166,
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140 Bskip_chars_forward = 0167,
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|
141 Bskip_chars_backward = 0170,
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|
142 Bforward_line = 0171,
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|
143 Bchar_syntax = 0172,
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|
144 Bbuffer_substring = 0173,
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|
145 Bdelete_region = 0174,
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|
146 Bnarrow_to_region = 0175,
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|
147 Bwiden = 0176,
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|
148 Bend_of_line = 0177,
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|
149
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|
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150 Bconstant2 = 0201,
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|
151 Bgoto = 0202,
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|
152 Bgotoifnil = 0203,
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|
153 Bgotoifnonnil = 0204,
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|
154 Bgotoifnilelsepop = 0205,
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155 Bgotoifnonnilelsepop = 0206,
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156 Breturn = 0207,
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157 Bdiscard = 0210,
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|
158 Bdup = 0211,
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159
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160 Bsave_excursion = 0212,
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|
161 Bsave_window_excursion= 0213,
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|
162 Bsave_restriction = 0214,
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163 Bcatch = 0215,
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164
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165 Bunwind_protect = 0216,
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|
166 Bcondition_case = 0217,
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|
167 Btemp_output_buffer_setup = 0220,
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|
168 Btemp_output_buffer_show = 0221,
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169
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170 Bunbind_all = 0222,
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171
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172 Bset_marker = 0223,
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|
173 Bmatch_beginning = 0224,
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|
174 Bmatch_end = 0225,
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|
175 Bupcase = 0226,
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|
176 Bdowncase = 0227,
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177
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178 Bstring_equal = 0230,
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179 Bstring_lessp = 0231,
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|
180 Bold_equal = 0232,
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|
181 Bnthcdr = 0233,
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182 Belt = 0234,
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183 Bold_member = 0235,
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184 Bold_assq = 0236,
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185 Bnreverse = 0237,
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186 Bsetcar = 0240,
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187 Bsetcdr = 0241,
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188 Bcar_safe = 0242,
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189 Bcdr_safe = 0243,
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|
190 Bnconc = 0244,
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191 Bquo = 0245,
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192 Brem = 0246,
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193 Bnumberp = 0247,
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194 Bintegerp = 0250,
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195
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|
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196 BRgoto = 0252,
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|
197 BRgotoifnil = 0253,
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|
198 BRgotoifnonnil = 0254,
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|
199 BRgotoifnilelsepop = 0255,
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200 BRgotoifnonnilelsepop = 0256,
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201
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|
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202 BlistN = 0257,
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203 BconcatN = 0260,
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204 BinsertN = 0261,
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205 Bmember = 0266, /* new in v20 */
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206 Bassq = 0267, /* new in v20 */
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|
207
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|
|
208 Bconstant = 0300
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|
209 };
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|
|
210 typedef enum Opcode Opcode;
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|
|
211 typedef unsigned char Opbyte;
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|
|
212
|
|
|
213
|
|
|
214 static void invalid_byte_code_error (char *error_message, ...);
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|
|
215
|
|
|
216 Lisp_Object * execute_rare_opcode (Lisp_Object *stack_ptr,
|
|
442
|
217 const Opbyte *program_ptr,
|
|
428
|
218 Opcode opcode);
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|
|
219
|
|
442
|
220 static Lisp_Object execute_optimized_program (const Opbyte *program,
|
|
428
|
221 int stack_depth,
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|
|
222 Lisp_Object *constants_data);
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|
|
223
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|
|
224 extern Lisp_Object Qand_rest, Qand_optional;
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|
|
225
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|
|
226 /* Define BYTE_CODE_METER to enable generation of a byte-op usage histogram.
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|
|
227 This isn't defined in FSF Emacs and isn't defined in XEmacs v19. */
|
|
|
228 /* #define BYTE_CODE_METER */
|
|
|
229
|
|
|
230
|
|
|
231 #ifdef BYTE_CODE_METER
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|
|
232
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|
|
233 Lisp_Object Vbyte_code_meter, Qbyte_code_meter;
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|
|
234 int byte_metering_on;
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|
|
235
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|
|
236 static void
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|
|
237 meter_code (Opcode prev_opcode, Opcode this_opcode)
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|
|
238 {
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|
|
239 if (byte_metering_on)
|
|
|
240 {
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|
|
241 Lisp_Object *p = XVECTOR_DATA (XVECTOR_DATA (Vbyte_code_meter)[this_opcode]);
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|
|
242 p[0] = INT_PLUS1 (p[0]);
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|
|
243 if (prev_opcode)
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|
|
244 p[prev_opcode] = INT_PLUS1 (p[prev_opcode]);
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|
|
245 }
|
|
|
246 }
|
|
|
247
|
|
|
248 #endif /* BYTE_CODE_METER */
|
|
|
249
|
|
|
250
|
|
|
251 static Lisp_Object
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|
|
252 bytecode_negate (Lisp_Object obj)
|
|
|
253 {
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|
|
254 retry:
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|
255
|
|
|
256 if (INTP (obj)) return make_int (- XINT (obj));
|
|
|
257 #ifdef LISP_FLOAT_TYPE
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|
|
258 if (FLOATP (obj)) return make_float (- XFLOAT_DATA (obj));
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|
|
259 #endif
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|
|
260 if (CHARP (obj)) return make_int (- ((int) XCHAR (obj)));
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|
|
261 if (MARKERP (obj)) return make_int (- ((int) marker_position (obj)));
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|
|
262
|
|
|
263 obj = wrong_type_argument (Qnumber_char_or_marker_p, obj);
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|
|
264 goto retry;
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|
|
265 }
|
|
|
266
|
|
|
267 static Lisp_Object
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|
|
268 bytecode_nreverse (Lisp_Object list)
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|
|
269 {
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|
|
270 REGISTER Lisp_Object prev = Qnil;
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|
|
271 REGISTER Lisp_Object tail = list;
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|
|
272
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|
|
273 while (!NILP (tail))
|
|
|
274 {
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|
|
275 REGISTER Lisp_Object next;
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|
|
276 CHECK_CONS (tail);
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|
|
277 next = XCDR (tail);
|
|
|
278 XCDR (tail) = prev;
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|
|
279 prev = tail;
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|
|
280 tail = next;
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|
|
281 }
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|
|
282 return prev;
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|
|
283 }
|
|
|
284
|
|
|
285
|
|
|
286 /* We have our own two-argument versions of various arithmetic ops.
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|
|
287 Only two-argument arithmetic operations have their own byte codes. */
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|
|
288 static int
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|
|
289 bytecode_arithcompare (Lisp_Object obj1, Lisp_Object obj2)
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|
|
290 {
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|
|
291 retry:
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|
|
292
|
|
|
293 #ifdef LISP_FLOAT_TYPE
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|
|
294 {
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|
|
295 EMACS_INT ival1, ival2;
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|
|
296
|
|
|
297 if (INTP (obj1)) ival1 = XINT (obj1);
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|
|
298 else if (CHARP (obj1)) ival1 = XCHAR (obj1);
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|
|
299 else if (MARKERP (obj1)) ival1 = marker_position (obj1);
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|
|
300 else goto arithcompare_float;
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|
|
301
|
|
|
302 if (INTP (obj2)) ival2 = XINT (obj2);
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|
|
303 else if (CHARP (obj2)) ival2 = XCHAR (obj2);
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|
|
304 else if (MARKERP (obj2)) ival2 = marker_position (obj2);
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|
|
305 else goto arithcompare_float;
|
|
|
306
|
|
|
307 return ival1 < ival2 ? -1 : ival1 > ival2 ? 1 : 0;
|
|
|
308 }
|
|
|
309
|
|
|
310 arithcompare_float:
|
|
|
311
|
|
|
312 {
|
|
|
313 double dval1, dval2;
|
|
|
314
|
|
|
315 if (FLOATP (obj1)) dval1 = XFLOAT_DATA (obj1);
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|
|
316 else if (INTP (obj1)) dval1 = (double) XINT (obj1);
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|
|
317 else if (CHARP (obj1)) dval1 = (double) XCHAR (obj1);
|
|
|
318 else if (MARKERP (obj1)) dval1 = (double) marker_position (obj1);
|
|
|
319 else
|
|
|
320 {
|
|
|
321 obj1 = wrong_type_argument (Qnumber_char_or_marker_p, obj1);
|
|
|
322 goto retry;
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|
|
323 }
|
|
|
324
|
|
|
325 if (FLOATP (obj2)) dval2 = XFLOAT_DATA (obj2);
|
|
|
326 else if (INTP (obj2)) dval2 = (double) XINT (obj2);
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|
|
327 else if (CHARP (obj2)) dval2 = (double) XCHAR (obj2);
|
|
|
328 else if (MARKERP (obj2)) dval2 = (double) marker_position (obj2);
|
|
|
329 else
|
|
|
330 {
|
|
|
331 obj2 = wrong_type_argument (Qnumber_char_or_marker_p, obj2);
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|
|
332 goto retry;
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|
|
333 }
|
|
|
334
|
|
|
335 return dval1 < dval2 ? -1 : dval1 > dval2 ? 1 : 0;
|
|
|
336 }
|
|
|
337 #else /* !LISP_FLOAT_TYPE */
|
|
|
338 {
|
|
|
339 EMACS_INT ival1, ival2;
|
|
|
340
|
|
|
341 if (INTP (obj1)) ival1 = XINT (obj1);
|
|
|
342 else if (CHARP (obj1)) ival1 = XCHAR (obj1);
|
|
|
343 else if (MARKERP (obj1)) ival1 = marker_position (obj1);
|
|
|
344 else
|
|
|
345 {
|
|
|
346 obj1 = wrong_type_argument (Qnumber_char_or_marker_p, obj1);
|
|
|
347 goto retry;
|
|
|
348 }
|
|
|
349
|
|
|
350 if (INTP (obj2)) ival2 = XINT (obj2);
|
|
|
351 else if (CHARP (obj2)) ival2 = XCHAR (obj2);
|
|
|
352 else if (MARKERP (obj2)) ival2 = marker_position (obj2);
|
|
|
353 else
|
|
|
354 {
|
|
|
355 obj2 = wrong_type_argument (Qnumber_char_or_marker_p, obj2);
|
|
|
356 goto retry;
|
|
|
357 }
|
|
|
358
|
|
|
359 return ival1 < ival2 ? -1 : ival1 > ival2 ? 1 : 0;
|
|
|
360 }
|
|
|
361 #endif /* !LISP_FLOAT_TYPE */
|
|
|
362 }
|
|
|
363
|
|
|
364 static Lisp_Object
|
|
|
365 bytecode_arithop (Lisp_Object obj1, Lisp_Object obj2, Opcode opcode)
|
|
|
366 {
|
|
|
367 #ifdef LISP_FLOAT_TYPE
|
|
|
368 EMACS_INT ival1, ival2;
|
|
|
369 int float_p;
|
|
|
370
|
|
|
371 retry:
|
|
|
372
|
|
|
373 float_p = 0;
|
|
|
374
|
|
|
375 if (INTP (obj1)) ival1 = XINT (obj1);
|
|
|
376 else if (CHARP (obj1)) ival1 = XCHAR (obj1);
|
|
|
377 else if (MARKERP (obj1)) ival1 = marker_position (obj1);
|
|
|
378 else if (FLOATP (obj1)) ival1 = 0, float_p = 1;
|
|
|
379 else
|
|
|
380 {
|
|
|
381 obj1 = wrong_type_argument (Qnumber_char_or_marker_p, obj1);
|
|
|
382 goto retry;
|
|
|
383 }
|
|
|
384
|
|
|
385 if (INTP (obj2)) ival2 = XINT (obj2);
|
|
|
386 else if (CHARP (obj2)) ival2 = XCHAR (obj2);
|
|
|
387 else if (MARKERP (obj2)) ival2 = marker_position (obj2);
|
|
|
388 else if (FLOATP (obj2)) ival2 = 0, float_p = 1;
|
|
|
389 else
|
|
|
390 {
|
|
|
391 obj2 = wrong_type_argument (Qnumber_char_or_marker_p, obj2);
|
|
|
392 goto retry;
|
|
|
393 }
|
|
|
394
|
|
|
395 if (!float_p)
|
|
|
396 {
|
|
|
397 switch (opcode)
|
|
|
398 {
|
|
|
399 case Bplus: ival1 += ival2; break;
|
|
|
400 case Bdiff: ival1 -= ival2; break;
|
|
|
401 case Bmult: ival1 *= ival2; break;
|
|
|
402 case Bquo:
|
|
|
403 if (ival2 == 0) Fsignal (Qarith_error, Qnil);
|
|
|
404 ival1 /= ival2;
|
|
|
405 break;
|
|
|
406 case Bmax: if (ival1 < ival2) ival1 = ival2; break;
|
|
|
407 case Bmin: if (ival1 > ival2) ival1 = ival2; break;
|
|
|
408 }
|
|
|
409 return make_int (ival1);
|
|
|
410 }
|
|
|
411 else
|
|
|
412 {
|
|
|
413 double dval1 = FLOATP (obj1) ? XFLOAT_DATA (obj1) : (double) ival1;
|
|
|
414 double dval2 = FLOATP (obj2) ? XFLOAT_DATA (obj2) : (double) ival2;
|
|
|
415 switch (opcode)
|
|
|
416 {
|
|
|
417 case Bplus: dval1 += dval2; break;
|
|
|
418 case Bdiff: dval1 -= dval2; break;
|
|
|
419 case Bmult: dval1 *= dval2; break;
|
|
|
420 case Bquo:
|
|
|
421 if (dval2 == 0) Fsignal (Qarith_error, Qnil);
|
|
|
422 dval1 /= dval2;
|
|
|
423 break;
|
|
|
424 case Bmax: if (dval1 < dval2) dval1 = dval2; break;
|
|
|
425 case Bmin: if (dval1 > dval2) dval1 = dval2; break;
|
|
|
426 }
|
|
|
427 return make_float (dval1);
|
|
|
428 }
|
|
|
429 #else /* !LISP_FLOAT_TYPE */
|
|
|
430 EMACS_INT ival1, ival2;
|
|
|
431
|
|
|
432 retry:
|
|
|
433
|
|
|
434 if (INTP (obj1)) ival1 = XINT (obj1);
|
|
|
435 else if (CHARP (obj1)) ival1 = XCHAR (obj1);
|
|
|
436 else if (MARKERP (obj1)) ival1 = marker_position (obj1);
|
|
|
437 else
|
|
|
438 {
|
|
|
439 obj1 = wrong_type_argument (Qnumber_char_or_marker_p, obj1);
|
|
|
440 goto retry;
|
|
|
441 }
|
|
|
442
|
|
|
443 if (INTP (obj2)) ival2 = XINT (obj2);
|
|
|
444 else if (CHARP (obj2)) ival2 = XCHAR (obj2);
|
|
|
445 else if (MARKERP (obj2)) ival2 = marker_position (obj2);
|
|
|
446 else
|
|
|
447 {
|
|
|
448 obj2 = wrong_type_argument (Qnumber_char_or_marker_p, obj2);
|
|
|
449 goto retry;
|
|
|
450 }
|
|
|
451
|
|
|
452 switch (opcode)
|
|
|
453 {
|
|
|
454 case Bplus: ival1 += ival2; break;
|
|
|
455 case Bdiff: ival1 -= ival2; break;
|
|
|
456 case Bmult: ival1 *= ival2; break;
|
|
|
457 case Bquo:
|
|
|
458 if (ival2 == 0) Fsignal (Qarith_error, Qnil);
|
|
|
459 ival1 /= ival2;
|
|
|
460 break;
|
|
|
461 case Bmax: if (ival1 < ival2) ival1 = ival2; break;
|
|
|
462 case Bmin: if (ival1 > ival2) ival1 = ival2; break;
|
|
|
463 }
|
|
|
464 return make_int (ival1);
|
|
|
465 #endif /* !LISP_FLOAT_TYPE */
|
|
|
466 }
|
|
|
467
|
|
|
468 /* Apply compiled-function object FUN to the NARGS evaluated arguments
|
|
|
469 in ARGS, and return the result of evaluation. */
|
|
|
470 Lisp_Object
|
|
|
471 funcall_compiled_function (Lisp_Object fun, int nargs, Lisp_Object args[])
|
|
|
472 {
|
|
|
473 /* This function can GC */
|
|
|
474 int speccount = specpdl_depth();
|
|
|
475 REGISTER int i = 0;
|
|
|
476 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (fun);
|
|
|
477 int optional = 0;
|
|
|
478
|
|
|
479 if (!OPAQUEP (f->instructions))
|
|
|
480 /* Lazily munge the instructions into a more efficient form */
|
|
|
481 optimize_compiled_function (fun);
|
|
|
482
|
|
|
483 /* optimize_compiled_function() guaranteed that f->specpdl_depth is
|
|
|
484 the required space on the specbinding stack for binding the args
|
|
|
485 and local variables of fun. So just reserve it once. */
|
|
|
486 SPECPDL_RESERVE (f->specpdl_depth);
|
|
|
487
|
|
442
|
488 {
|
|
|
489 /* Fmake_byte_code() guaranteed that f->arglist is a valid list
|
|
|
490 containing only non-constant symbols. */
|
|
|
491 LIST_LOOP_3 (symbol, f->arglist, tail)
|
|
|
492 {
|
|
|
493 if (EQ (symbol, Qand_rest))
|
|
|
494 {
|
|
|
495 tail = XCDR (tail);
|
|
|
496 symbol = XCAR (tail);
|
|
|
497 SPECBIND_FAST_UNSAFE (symbol, Flist (nargs - i, &args[i]));
|
|
|
498 goto run_code;
|
|
|
499 }
|
|
|
500 else if (EQ (symbol, Qand_optional))
|
|
|
501 optional = 1;
|
|
|
502 else if (i == nargs && !optional)
|
|
|
503 goto wrong_number_of_arguments;
|
|
|
504 else
|
|
|
505 SPECBIND_FAST_UNSAFE (symbol, i < nargs ? args[i++] : Qnil);
|
|
|
506 }
|
|
|
507 }
|
|
428
|
508
|
|
|
509 if (i < nargs)
|
|
|
510 goto wrong_number_of_arguments;
|
|
|
511
|
|
|
512 run_code:
|
|
|
513
|
|
|
514 {
|
|
|
515 Lisp_Object value =
|
|
|
516 execute_optimized_program ((Opbyte *) XOPAQUE_DATA (f->instructions),
|
|
|
517 f->stack_depth,
|
|
|
518 XVECTOR_DATA (f->constants));
|
|
|
519
|
|
|
520 /* The attempt to optimize this by only unbinding variables failed
|
|
|
521 because using buffer-local variables as function parameters
|
|
|
522 leads to specpdl_ptr->func != 0 */
|
|
|
523 /* UNBIND_TO_GCPRO_VARIABLES_ONLY (speccount, value); */
|
|
|
524 UNBIND_TO_GCPRO (speccount, value);
|
|
|
525 return value;
|
|
|
526 }
|
|
|
527
|
|
|
528 wrong_number_of_arguments:
|
|
438
|
529 /* The actual printed compiled_function object is incomprehensible.
|
|
|
530 Check the backtrace to see if we can get a more meaningful symbol. */
|
|
|
531 if (EQ (fun, indirect_function (*backtrace_list->function, 0)))
|
|
|
532 fun = *backtrace_list->function;
|
|
428
|
533 return Fsignal (Qwrong_number_of_arguments, list2 (fun, make_int (nargs)));
|
|
|
534 }
|
|
|
535
|
|
|
536
|
|
|
537 /* Read next uint8 from the instruction stream. */
|
|
|
538 #define READ_UINT_1 ((unsigned int) (unsigned char) *program_ptr++)
|
|
|
539
|
|
|
540 /* Read next uint16 from the instruction stream. */
|
|
|
541 #define READ_UINT_2 \
|
|
|
542 (program_ptr += 2, \
|
|
|
543 (((unsigned int) (unsigned char) program_ptr[-1]) * 256 + \
|
|
|
544 ((unsigned int) (unsigned char) program_ptr[-2])))
|
|
|
545
|
|
|
546 /* Read next int8 from the instruction stream. */
|
|
|
547 #define READ_INT_1 ((int) (signed char) *program_ptr++)
|
|
|
548
|
|
|
549 /* Read next int16 from the instruction stream. */
|
|
|
550 #define READ_INT_2 \
|
|
|
551 (program_ptr += 2, \
|
|
|
552 (((int) ( signed char) program_ptr[-1]) * 256 + \
|
|
|
553 ((int) (unsigned char) program_ptr[-2])))
|
|
|
554
|
|
|
555 /* Read next int8 from instruction stream; don't advance program_pointer */
|
|
|
556 #define PEEK_INT_1 ((int) (signed char) program_ptr[0])
|
|
|
557
|
|
|
558 /* Read next int16 from instruction stream; don't advance program_pointer */
|
|
|
559 #define PEEK_INT_2 \
|
|
|
560 ((((int) ( signed char) program_ptr[1]) * 256) | \
|
|
|
561 ((int) (unsigned char) program_ptr[0]))
|
|
|
562
|
|
|
563 /* Do relative jumps from the current location.
|
|
|
564 We only do a QUIT if we jump backwards, for efficiency.
|
|
|
565 No infloops without backward jumps! */
|
|
|
566 #define JUMP_RELATIVE(jump) do { \
|
|
|
567 int JR_jump = (jump); \
|
|
|
568 if (JR_jump < 0) QUIT; \
|
|
|
569 program_ptr += JR_jump; \
|
|
|
570 } while (0)
|
|
|
571
|
|
|
572 #define JUMP JUMP_RELATIVE (PEEK_INT_2)
|
|
|
573 #define JUMPR JUMP_RELATIVE (PEEK_INT_1)
|
|
|
574
|
|
|
575 #define JUMP_NEXT ((void) (program_ptr += 2))
|
|
|
576 #define JUMPR_NEXT ((void) (program_ptr += 1))
|
|
|
577
|
|
|
578 /* Push x onto the execution stack. */
|
|
|
579 #define PUSH(x) (*++stack_ptr = (x))
|
|
|
580
|
|
|
581 /* Pop a value off the execution stack. */
|
|
|
582 #define POP (*stack_ptr--)
|
|
|
583
|
|
|
584 /* Discard n values from the execution stack. */
|
|
|
585 #define DISCARD(n) (stack_ptr -= (n))
|
|
|
586
|
|
|
587 /* Get the value which is at the top of the execution stack,
|
|
|
588 but don't pop it. */
|
|
|
589 #define TOP (*stack_ptr)
|
|
|
590
|
|
|
591 /* The actual interpreter for byte code.
|
|
|
592 This function has been seriously optimized for performance.
|
|
|
593 Don't change the constructs unless you are willing to do
|
|
|
594 real benchmarking and profiling work -- martin */
|
|
|
595
|
|
|
596
|
|
|
597 static Lisp_Object
|
|
442
|
598 execute_optimized_program (const Opbyte *program,
|
|
428
|
599 int stack_depth,
|
|
|
600 Lisp_Object *constants_data)
|
|
|
601 {
|
|
|
602 /* This function can GC */
|
|
442
|
603 REGISTER const Opbyte *program_ptr = (Opbyte *) program;
|
|
428
|
604 REGISTER Lisp_Object *stack_ptr
|
|
|
605 = alloca_array (Lisp_Object, stack_depth + 1);
|
|
|
606 int speccount = specpdl_depth ();
|
|
|
607 struct gcpro gcpro1;
|
|
|
608
|
|
|
609 #ifdef BYTE_CODE_METER
|
|
|
610 Opcode this_opcode = 0;
|
|
|
611 Opcode prev_opcode;
|
|
|
612 #endif
|
|
|
613
|
|
|
614 #ifdef ERROR_CHECK_BYTE_CODE
|
|
|
615 Lisp_Object *stack_beg = stack_ptr;
|
|
|
616 Lisp_Object *stack_end = stack_beg + stack_depth;
|
|
|
617 #endif
|
|
|
618
|
|
|
619 /* Initialize all the objects on the stack to Qnil,
|
|
|
620 so we can GCPRO the whole stack.
|
|
|
621 The first element of the stack is actually a dummy. */
|
|
|
622 {
|
|
|
623 int i;
|
|
|
624 Lisp_Object *p;
|
|
|
625 for (i = stack_depth, p = stack_ptr; i--;)
|
|
|
626 *++p = Qnil;
|
|
|
627 }
|
|
|
628
|
|
|
629 GCPRO1 (stack_ptr[1]);
|
|
|
630 gcpro1.nvars = stack_depth;
|
|
|
631
|
|
|
632 while (1)
|
|
|
633 {
|
|
|
634 REGISTER Opcode opcode = (Opcode) READ_UINT_1;
|
|
|
635 #ifdef ERROR_CHECK_BYTE_CODE
|
|
|
636 if (stack_ptr > stack_end)
|
|
|
637 invalid_byte_code_error ("byte code stack overflow");
|
|
|
638 if (stack_ptr < stack_beg)
|
|
|
639 invalid_byte_code_error ("byte code stack underflow");
|
|
|
640 #endif
|
|
|
641
|
|
|
642 #ifdef BYTE_CODE_METER
|
|
|
643 prev_opcode = this_opcode;
|
|
|
644 this_opcode = opcode;
|
|
|
645 meter_code (prev_opcode, this_opcode);
|
|
|
646 #endif
|
|
|
647
|
|
|
648 switch (opcode)
|
|
|
649 {
|
|
|
650 REGISTER int n;
|
|
|
651
|
|
|
652 default:
|
|
|
653 if (opcode >= Bconstant)
|
|
|
654 PUSH (constants_data[opcode - Bconstant]);
|
|
|
655 else
|
|
|
656 stack_ptr = execute_rare_opcode (stack_ptr, program_ptr, opcode);
|
|
|
657 break;
|
|
|
658
|
|
|
659 case Bvarref:
|
|
|
660 case Bvarref+1:
|
|
|
661 case Bvarref+2:
|
|
|
662 case Bvarref+3:
|
|
|
663 case Bvarref+4:
|
|
|
664 case Bvarref+5: n = opcode - Bvarref; goto do_varref;
|
|
|
665 case Bvarref+7: n = READ_UINT_2; goto do_varref;
|
|
|
666 case Bvarref+6: n = READ_UINT_1; /* most common */
|
|
|
667 do_varref:
|
|
|
668 {
|
|
|
669 Lisp_Object symbol = constants_data[n];
|
|
|
670 Lisp_Object value = XSYMBOL (symbol)->value;
|
|
|
671 if (SYMBOL_VALUE_MAGIC_P (value))
|
|
|
672 value = Fsymbol_value (symbol);
|
|
|
673 PUSH (value);
|
|
|
674 break;
|
|
|
675 }
|
|
|
676
|
|
|
677 case Bvarset:
|
|
|
678 case Bvarset+1:
|
|
|
679 case Bvarset+2:
|
|
|
680 case Bvarset+3:
|
|
|
681 case Bvarset+4:
|
|
|
682 case Bvarset+5: n = opcode - Bvarset; goto do_varset;
|
|
|
683 case Bvarset+7: n = READ_UINT_2; goto do_varset;
|
|
|
684 case Bvarset+6: n = READ_UINT_1; /* most common */
|
|
|
685 do_varset:
|
|
|
686 {
|
|
|
687 Lisp_Object symbol = constants_data[n];
|
|
440
|
688 Lisp_Symbol *symbol_ptr = XSYMBOL (symbol);
|
|
428
|
689 Lisp_Object old_value = symbol_ptr->value;
|
|
|
690 Lisp_Object new_value = POP;
|
|
|
691 if (!SYMBOL_VALUE_MAGIC_P (old_value) || UNBOUNDP (old_value))
|
|
|
692 symbol_ptr->value = new_value;
|
|
|
693 else
|
|
|
694 Fset (symbol, new_value);
|
|
|
695 break;
|
|
|
696 }
|
|
|
697
|
|
|
698 case Bvarbind:
|
|
|
699 case Bvarbind+1:
|
|
|
700 case Bvarbind+2:
|
|
|
701 case Bvarbind+3:
|
|
|
702 case Bvarbind+4:
|
|
|
703 case Bvarbind+5: n = opcode - Bvarbind; goto do_varbind;
|
|
|
704 case Bvarbind+7: n = READ_UINT_2; goto do_varbind;
|
|
|
705 case Bvarbind+6: n = READ_UINT_1; /* most common */
|
|
|
706 do_varbind:
|
|
|
707 {
|
|
|
708 Lisp_Object symbol = constants_data[n];
|
|
440
|
709 Lisp_Symbol *symbol_ptr = XSYMBOL (symbol);
|
|
428
|
710 Lisp_Object old_value = symbol_ptr->value;
|
|
|
711 Lisp_Object new_value = POP;
|
|
|
712 if (!SYMBOL_VALUE_MAGIC_P (old_value) || UNBOUNDP (old_value))
|
|
|
713 {
|
|
|
714 specpdl_ptr->symbol = symbol;
|
|
|
715 specpdl_ptr->old_value = old_value;
|
|
|
716 specpdl_ptr->func = 0;
|
|
|
717 specpdl_ptr++;
|
|
|
718 specpdl_depth_counter++;
|
|
|
719
|
|
|
720 symbol_ptr->value = new_value;
|
|
|
721 }
|
|
|
722 else
|
|
|
723 specbind_magic (symbol, new_value);
|
|
|
724 break;
|
|
|
725 }
|
|
|
726
|
|
|
727 case Bcall:
|
|
|
728 case Bcall+1:
|
|
|
729 case Bcall+2:
|
|
|
730 case Bcall+3:
|
|
|
731 case Bcall+4:
|
|
|
732 case Bcall+5:
|
|
|
733 case Bcall+6:
|
|
|
734 case Bcall+7:
|
|
|
735 n = (opcode < Bcall+6 ? opcode - Bcall :
|
|
|
736 opcode == Bcall+6 ? READ_UINT_1 : READ_UINT_2);
|
|
|
737 DISCARD (n);
|
|
|
738 #ifdef BYTE_CODE_METER
|
|
|
739 if (byte_metering_on && SYMBOLP (TOP))
|
|
|
740 {
|
|
|
741 Lisp_Object val = Fget (TOP, Qbyte_code_meter, Qnil);
|
|
|
742 if (INTP (val))
|
|
|
743 Fput (TOP, Qbyte_code_meter, make_int (XINT (val) + 1));
|
|
|
744 }
|
|
|
745 #endif
|
|
|
746 TOP = Ffuncall (n + 1, &TOP);
|
|
|
747 break;
|
|
|
748
|
|
|
749 case Bunbind:
|
|
|
750 case Bunbind+1:
|
|
|
751 case Bunbind+2:
|
|
|
752 case Bunbind+3:
|
|
|
753 case Bunbind+4:
|
|
|
754 case Bunbind+5:
|
|
|
755 case Bunbind+6:
|
|
|
756 case Bunbind+7:
|
|
|
757 UNBIND_TO (specpdl_depth() -
|
|
|
758 (opcode < Bunbind+6 ? opcode-Bunbind :
|
|
|
759 opcode == Bunbind+6 ? READ_UINT_1 : READ_UINT_2));
|
|
|
760 break;
|
|
|
761
|
|
|
762
|
|
|
763 case Bgoto:
|
|
|
764 JUMP;
|
|
|
765 break;
|
|
|
766
|
|
|
767 case Bgotoifnil:
|
|
|
768 if (NILP (POP))
|
|
|
769 JUMP;
|
|
|
770 else
|
|
|
771 JUMP_NEXT;
|
|
|
772 break;
|
|
|
773
|
|
|
774 case Bgotoifnonnil:
|
|
|
775 if (!NILP (POP))
|
|
|
776 JUMP;
|
|
|
777 else
|
|
|
778 JUMP_NEXT;
|
|
|
779 break;
|
|
|
780
|
|
|
781 case Bgotoifnilelsepop:
|
|
|
782 if (NILP (TOP))
|
|
|
783 JUMP;
|
|
|
784 else
|
|
|
785 {
|
|
|
786 DISCARD (1);
|
|
|
787 JUMP_NEXT;
|
|
|
788 }
|
|
|
789 break;
|
|
|
790
|
|
|
791 case Bgotoifnonnilelsepop:
|
|
|
792 if (!NILP (TOP))
|
|
|
793 JUMP;
|
|
|
794 else
|
|
|
795 {
|
|
|
796 DISCARD (1);
|
|
|
797 JUMP_NEXT;
|
|
|
798 }
|
|
|
799 break;
|
|
|
800
|
|
|
801
|
|
|
802 case BRgoto:
|
|
|
803 JUMPR;
|
|
|
804 break;
|
|
|
805
|
|
|
806 case BRgotoifnil:
|
|
|
807 if (NILP (POP))
|
|
|
808 JUMPR;
|
|
|
809 else
|
|
|
810 JUMPR_NEXT;
|
|
|
811 break;
|
|
|
812
|
|
|
813 case BRgotoifnonnil:
|
|
|
814 if (!NILP (POP))
|
|
|
815 JUMPR;
|
|
|
816 else
|
|
|
817 JUMPR_NEXT;
|
|
|
818 break;
|
|
|
819
|
|
|
820 case BRgotoifnilelsepop:
|
|
|
821 if (NILP (TOP))
|
|
|
822 JUMPR;
|
|
|
823 else
|
|
|
824 {
|
|
|
825 DISCARD (1);
|
|
|
826 JUMPR_NEXT;
|
|
|
827 }
|
|
|
828 break;
|
|
|
829
|
|
|
830 case BRgotoifnonnilelsepop:
|
|
|
831 if (!NILP (TOP))
|
|
|
832 JUMPR;
|
|
|
833 else
|
|
|
834 {
|
|
|
835 DISCARD (1);
|
|
|
836 JUMPR_NEXT;
|
|
|
837 }
|
|
|
838 break;
|
|
|
839
|
|
|
840 case Breturn:
|
|
|
841 UNGCPRO;
|
|
|
842 #ifdef ERROR_CHECK_BYTE_CODE
|
|
|
843 /* Binds and unbinds are supposed to be compiled balanced. */
|
|
|
844 if (specpdl_depth() != speccount)
|
|
|
845 invalid_byte_code_error ("unbalanced specbinding stack");
|
|
|
846 #endif
|
|
|
847 return TOP;
|
|
|
848
|
|
|
849 case Bdiscard:
|
|
|
850 DISCARD (1);
|
|
|
851 break;
|
|
|
852
|
|
|
853 case Bdup:
|
|
|
854 {
|
|
|
855 Lisp_Object arg = TOP;
|
|
|
856 PUSH (arg);
|
|
|
857 break;
|
|
|
858 }
|
|
|
859
|
|
|
860 case Bconstant2:
|
|
|
861 PUSH (constants_data[READ_UINT_2]);
|
|
|
862 break;
|
|
|
863
|
|
|
864 case Bcar:
|
|
|
865 TOP = CONSP (TOP) ? XCAR (TOP) : Fcar (TOP);
|
|
|
866 break;
|
|
|
867
|
|
|
868 case Bcdr:
|
|
|
869 TOP = CONSP (TOP) ? XCDR (TOP) : Fcdr (TOP);
|
|
|
870 break;
|
|
|
871
|
|
|
872
|
|
|
873 case Bunbind_all:
|
|
|
874 /* To unbind back to the beginning of this frame. Not used yet,
|
|
|
875 but will be needed for tail-recursion elimination. */
|
|
|
876 unbind_to (speccount, Qnil);
|
|
|
877 break;
|
|
|
878
|
|
|
879 case Bnth:
|
|
|
880 {
|
|
|
881 Lisp_Object arg = POP;
|
|
|
882 TOP = Fcar (Fnthcdr (TOP, arg));
|
|
|
883 break;
|
|
|
884 }
|
|
|
885
|
|
|
886 case Bsymbolp:
|
|
|
887 TOP = SYMBOLP (TOP) ? Qt : Qnil;
|
|
|
888 break;
|
|
|
889
|
|
|
890 case Bconsp:
|
|
|
891 TOP = CONSP (TOP) ? Qt : Qnil;
|
|
|
892 break;
|
|
|
893
|
|
|
894 case Bstringp:
|
|
|
895 TOP = STRINGP (TOP) ? Qt : Qnil;
|
|
|
896 break;
|
|
|
897
|
|
|
898 case Blistp:
|
|
|
899 TOP = LISTP (TOP) ? Qt : Qnil;
|
|
|
900 break;
|
|
|
901
|
|
|
902 case Bnumberp:
|
|
|
903 TOP = INT_OR_FLOATP (TOP) ? Qt : Qnil;
|
|
|
904 break;
|
|
|
905
|
|
|
906 case Bintegerp:
|
|
|
907 TOP = INTP (TOP) ? Qt : Qnil;
|
|
|
908 break;
|
|
|
909
|
|
|
910 case Beq:
|
|
|
911 {
|
|
|
912 Lisp_Object arg = POP;
|
|
|
913 TOP = EQ_WITH_EBOLA_NOTICE (TOP, arg) ? Qt : Qnil;
|
|
|
914 break;
|
|
|
915 }
|
|
|
916
|
|
|
917 case Bnot:
|
|
|
918 TOP = NILP (TOP) ? Qt : Qnil;
|
|
|
919 break;
|
|
|
920
|
|
|
921 case Bcons:
|
|
|
922 {
|
|
|
923 Lisp_Object arg = POP;
|
|
|
924 TOP = Fcons (TOP, arg);
|
|
|
925 break;
|
|
|
926 }
|
|
|
927
|
|
|
928 case Blist1:
|
|
|
929 TOP = Fcons (TOP, Qnil);
|
|
|
930 break;
|
|
|
931
|
|
|
932
|
|
|
933 case BlistN:
|
|
|
934 n = READ_UINT_1;
|
|
|
935 goto do_list;
|
|
|
936
|
|
|
937 case Blist2:
|
|
|
938 case Blist3:
|
|
|
939 case Blist4:
|
|
|
940 /* common case */
|
|
|
941 n = opcode - (Blist1 - 1);
|
|
|
942 do_list:
|
|
|
943 {
|
|
|
944 Lisp_Object list = Qnil;
|
|
|
945 list_loop:
|
|
|
946 list = Fcons (TOP, list);
|
|
|
947 if (--n)
|
|
|
948 {
|
|
|
949 DISCARD (1);
|
|
|
950 goto list_loop;
|
|
|
951 }
|
|
|
952 TOP = list;
|
|
|
953 break;
|
|
|
954 }
|
|
|
955
|
|
|
956
|
|
|
957 case Bconcat2:
|
|
|
958 case Bconcat3:
|
|
|
959 case Bconcat4:
|
|
|
960 n = opcode - (Bconcat2 - 2);
|
|
|
961 goto do_concat;
|
|
|
962
|
|
|
963 case BconcatN:
|
|
|
964 /* common case */
|
|
|
965 n = READ_UINT_1;
|
|
|
966 do_concat:
|
|
|
967 DISCARD (n - 1);
|
|
|
968 TOP = Fconcat (n, &TOP);
|
|
|
969 break;
|
|
|
970
|
|
|
971
|
|
|
972 case Blength:
|
|
|
973 TOP = Flength (TOP);
|
|
|
974 break;
|
|
|
975
|
|
|
976 case Baset:
|
|
|
977 {
|
|
|
978 Lisp_Object arg2 = POP;
|
|
|
979 Lisp_Object arg1 = POP;
|
|
|
980 TOP = Faset (TOP, arg1, arg2);
|
|
|
981 break;
|
|
|
982 }
|
|
|
983
|
|
|
984 case Bsymbol_value:
|
|
|
985 TOP = Fsymbol_value (TOP);
|
|
|
986 break;
|
|
|
987
|
|
|
988 case Bsymbol_function:
|
|
|
989 TOP = Fsymbol_function (TOP);
|
|
|
990 break;
|
|
|
991
|
|
|
992 case Bget:
|
|
|
993 {
|
|
|
994 Lisp_Object arg = POP;
|
|
|
995 TOP = Fget (TOP, arg, Qnil);
|
|
|
996 break;
|
|
|
997 }
|
|
|
998
|
|
|
999 case Bsub1:
|
|
|
1000 TOP = INTP (TOP) ? INT_MINUS1 (TOP) : Fsub1 (TOP);
|
|
|
1001 break;
|
|
|
1002
|
|
|
1003 case Badd1:
|
|
|
1004 TOP = INTP (TOP) ? INT_PLUS1 (TOP) : Fadd1 (TOP);
|
|
|
1005 break;
|
|
|
1006
|
|
|
1007
|
|
|
1008 case Beqlsign:
|
|
|
1009 {
|
|
|
1010 Lisp_Object arg = POP;
|
|
|
1011 TOP = bytecode_arithcompare (TOP, arg) == 0 ? Qt : Qnil;
|
|
|
1012 break;
|
|
|
1013 }
|
|
|
1014
|
|
|
1015 case Bgtr:
|
|
|
1016 {
|
|
|
1017 Lisp_Object arg = POP;
|
|
|
1018 TOP = bytecode_arithcompare (TOP, arg) > 0 ? Qt : Qnil;
|
|
|
1019 break;
|
|
|
1020 }
|
|
|
1021
|
|
|
1022 case Blss:
|
|
|
1023 {
|
|
|
1024 Lisp_Object arg = POP;
|
|
|
1025 TOP = bytecode_arithcompare (TOP, arg) < 0 ? Qt : Qnil;
|
|
|
1026 break;
|
|
|
1027 }
|
|
|
1028
|
|
|
1029 case Bleq:
|
|
|
1030 {
|
|
|
1031 Lisp_Object arg = POP;
|
|
|
1032 TOP = bytecode_arithcompare (TOP, arg) <= 0 ? Qt : Qnil;
|
|
|
1033 break;
|
|
|
1034 }
|
|
|
1035
|
|
|
1036 case Bgeq:
|
|
|
1037 {
|
|
|
1038 Lisp_Object arg = POP;
|
|
|
1039 TOP = bytecode_arithcompare (TOP, arg) >= 0 ? Qt : Qnil;
|
|
|
1040 break;
|
|
|
1041 }
|
|
|
1042
|
|
|
1043
|
|
|
1044 case Bnegate:
|
|
|
1045 TOP = bytecode_negate (TOP);
|
|
|
1046 break;
|
|
|
1047
|
|
|
1048 case Bnconc:
|
|
|
1049 DISCARD (1);
|
|
|
1050 TOP = bytecode_nconc2 (&TOP);
|
|
|
1051 break;
|
|
|
1052
|
|
|
1053 case Bplus:
|
|
|
1054 {
|
|
|
1055 Lisp_Object arg2 = POP;
|
|
|
1056 Lisp_Object arg1 = TOP;
|
|
|
1057 TOP = INTP (arg1) && INTP (arg2) ?
|
|
|
1058 INT_PLUS (arg1, arg2) :
|
|
|
1059 bytecode_arithop (arg1, arg2, opcode);
|
|
|
1060 break;
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 case Bdiff:
|
|
|
1064 {
|
|
|
1065 Lisp_Object arg2 = POP;
|
|
|
1066 Lisp_Object arg1 = TOP;
|
|
|
1067 TOP = INTP (arg1) && INTP (arg2) ?
|
|
|
1068 INT_MINUS (arg1, arg2) :
|
|
|
1069 bytecode_arithop (arg1, arg2, opcode);
|
|
|
1070 break;
|
|
|
1071 }
|
|
|
1072
|
|
|
1073 case Bmult:
|
|
|
1074 case Bquo:
|
|
|
1075 case Bmax:
|
|
|
1076 case Bmin:
|
|
|
1077 {
|
|
|
1078 Lisp_Object arg = POP;
|
|
|
1079 TOP = bytecode_arithop (TOP, arg, opcode);
|
|
|
1080 break;
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 case Bpoint:
|
|
|
1084 PUSH (make_int (BUF_PT (current_buffer)));
|
|
|
1085 break;
|
|
|
1086
|
|
|
1087 case Binsert:
|
|
|
1088 TOP = Finsert (1, &TOP);
|
|
|
1089 break;
|
|
|
1090
|
|
|
1091 case BinsertN:
|
|
|
1092 n = READ_UINT_1;
|
|
|
1093 DISCARD (n - 1);
|
|
|
1094 TOP = Finsert (n, &TOP);
|
|
|
1095 break;
|
|
|
1096
|
|
|
1097 case Baref:
|
|
|
1098 {
|
|
|
1099 Lisp_Object arg = POP;
|
|
|
1100 TOP = Faref (TOP, arg);
|
|
|
1101 break;
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 case Bmemq:
|
|
|
1105 {
|
|
|
1106 Lisp_Object arg = POP;
|
|
|
1107 TOP = Fmemq (TOP, arg);
|
|
|
1108 break;
|
|
|
1109 }
|
|
|
1110
|
|
|
1111 case Bset:
|
|
|
1112 {
|
|
|
1113 Lisp_Object arg = POP;
|
|
|
1114 TOP = Fset (TOP, arg);
|
|
|
1115 break;
|
|
|
1116 }
|
|
|
1117
|
|
|
1118 case Bequal:
|
|
|
1119 {
|
|
|
1120 Lisp_Object arg = POP;
|
|
|
1121 TOP = Fequal (TOP, arg);
|
|
|
1122 break;
|
|
|
1123 }
|
|
|
1124
|
|
|
1125 case Bnthcdr:
|
|
|
1126 {
|
|
|
1127 Lisp_Object arg = POP;
|
|
|
1128 TOP = Fnthcdr (TOP, arg);
|
|
|
1129 break;
|
|
|
1130 }
|
|
|
1131
|
|
|
1132 case Belt:
|
|
|
1133 {
|
|
|
1134 Lisp_Object arg = POP;
|
|
|
1135 TOP = Felt (TOP, arg);
|
|
|
1136 break;
|
|
|
1137 }
|
|
|
1138
|
|
|
1139 case Bmember:
|
|
|
1140 {
|
|
|
1141 Lisp_Object arg = POP;
|
|
|
1142 TOP = Fmember (TOP, arg);
|
|
|
1143 break;
|
|
|
1144 }
|
|
|
1145
|
|
|
1146 case Bgoto_char:
|
|
|
1147 TOP = Fgoto_char (TOP, Qnil);
|
|
|
1148 break;
|
|
|
1149
|
|
|
1150 case Bcurrent_buffer:
|
|
|
1151 {
|
|
|
1152 Lisp_Object buffer;
|
|
|
1153 XSETBUFFER (buffer, current_buffer);
|
|
|
1154 PUSH (buffer);
|
|
|
1155 break;
|
|
|
1156 }
|
|
|
1157
|
|
|
1158 case Bset_buffer:
|
|
|
1159 TOP = Fset_buffer (TOP);
|
|
|
1160 break;
|
|
|
1161
|
|
|
1162 case Bpoint_max:
|
|
|
1163 PUSH (make_int (BUF_ZV (current_buffer)));
|
|
|
1164 break;
|
|
|
1165
|
|
|
1166 case Bpoint_min:
|
|
|
1167 PUSH (make_int (BUF_BEGV (current_buffer)));
|
|
|
1168 break;
|
|
|
1169
|
|
|
1170 case Bskip_chars_forward:
|
|
|
1171 {
|
|
|
1172 Lisp_Object arg = POP;
|
|
|
1173 TOP = Fskip_chars_forward (TOP, arg, Qnil);
|
|
|
1174 break;
|
|
|
1175 }
|
|
|
1176
|
|
|
1177 case Bassq:
|
|
|
1178 {
|
|
|
1179 Lisp_Object arg = POP;
|
|
|
1180 TOP = Fassq (TOP, arg);
|
|
|
1181 break;
|
|
|
1182 }
|
|
|
1183
|
|
|
1184 case Bsetcar:
|
|
|
1185 {
|
|
|
1186 Lisp_Object arg = POP;
|
|
|
1187 TOP = Fsetcar (TOP, arg);
|
|
|
1188 break;
|
|
|
1189 }
|
|
|
1190
|
|
|
1191 case Bsetcdr:
|
|
|
1192 {
|
|
|
1193 Lisp_Object arg = POP;
|
|
|
1194 TOP = Fsetcdr (TOP, arg);
|
|
|
1195 break;
|
|
|
1196 }
|
|
|
1197
|
|
|
1198 case Bnreverse:
|
|
|
1199 TOP = bytecode_nreverse (TOP);
|
|
|
1200 break;
|
|
|
1201
|
|
|
1202 case Bcar_safe:
|
|
|
1203 TOP = CONSP (TOP) ? XCAR (TOP) : Qnil;
|
|
|
1204 break;
|
|
|
1205
|
|
|
1206 case Bcdr_safe:
|
|
|
1207 TOP = CONSP (TOP) ? XCDR (TOP) : Qnil;
|
|
|
1208 break;
|
|
|
1209
|
|
|
1210 }
|
|
|
1211 }
|
|
|
1212 }
|
|
|
1213
|
|
|
1214 /* It makes a worthwhile performance difference (5%) to shunt
|
|
|
1215 lesser-used opcodes off to a subroutine, to keep the switch in
|
|
|
1216 execute_optimized_program small. If you REALLY care about
|
|
|
1217 performance, you want to keep your heavily executed code away from
|
|
|
1218 rarely executed code, to minimize cache misses.
|
|
|
1219
|
|
|
1220 Don't make this function static, since then the compiler might inline it. */
|
|
|
1221 Lisp_Object *
|
|
|
1222 execute_rare_opcode (Lisp_Object *stack_ptr,
|
|
442
|
1223 const Opbyte *program_ptr,
|
|
428
|
1224 Opcode opcode)
|
|
|
1225 {
|
|
|
1226 switch (opcode)
|
|
|
1227 {
|
|
|
1228
|
|
|
1229 case Bsave_excursion:
|
|
|
1230 record_unwind_protect (save_excursion_restore,
|
|
|
1231 save_excursion_save ());
|
|
|
1232 break;
|
|
|
1233
|
|
|
1234 case Bsave_window_excursion:
|
|
|
1235 {
|
|
|
1236 int count = specpdl_depth ();
|
|
|
1237 record_unwind_protect (save_window_excursion_unwind,
|
|
|
1238 Fcurrent_window_configuration (Qnil));
|
|
|
1239 TOP = Fprogn (TOP);
|
|
|
1240 unbind_to (count, Qnil);
|
|
|
1241 break;
|
|
|
1242 }
|
|
|
1243
|
|
|
1244 case Bsave_restriction:
|
|
|
1245 record_unwind_protect (save_restriction_restore,
|
|
|
1246 save_restriction_save ());
|
|
|
1247 break;
|
|
|
1248
|
|
|
1249 case Bcatch:
|
|
|
1250 {
|
|
|
1251 Lisp_Object arg = POP;
|
|
|
1252 TOP = internal_catch (TOP, Feval, arg, 0);
|
|
|
1253 break;
|
|
|
1254 }
|
|
|
1255
|
|
|
1256 case Bskip_chars_backward:
|
|
|
1257 {
|
|
|
1258 Lisp_Object arg = POP;
|
|
|
1259 TOP = Fskip_chars_backward (TOP, arg, Qnil);
|
|
|
1260 break;
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 case Bunwind_protect:
|
|
|
1264 record_unwind_protect (Fprogn, POP);
|
|
|
1265 break;
|
|
|
1266
|
|
|
1267 case Bcondition_case:
|
|
|
1268 {
|
|
|
1269 Lisp_Object arg2 = POP; /* handlers */
|
|
|
1270 Lisp_Object arg1 = POP; /* bodyform */
|
|
|
1271 TOP = condition_case_3 (arg1, TOP, arg2);
|
|
|
1272 break;
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 case Bset_marker:
|
|
|
1276 {
|
|
|
1277 Lisp_Object arg2 = POP;
|
|
|
1278 Lisp_Object arg1 = POP;
|
|
|
1279 TOP = Fset_marker (TOP, arg1, arg2);
|
|
|
1280 break;
|
|
|
1281 }
|
|
|
1282
|
|
|
1283 case Brem:
|
|
|
1284 {
|
|
|
1285 Lisp_Object arg = POP;
|
|
|
1286 TOP = Frem (TOP, arg);
|
|
|
1287 break;
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 case Bmatch_beginning:
|
|
|
1291 TOP = Fmatch_beginning (TOP);
|
|
|
1292 break;
|
|
|
1293
|
|
|
1294 case Bmatch_end:
|
|
|
1295 TOP = Fmatch_end (TOP);
|
|
|
1296 break;
|
|
|
1297
|
|
|
1298 case Bupcase:
|
|
|
1299 TOP = Fupcase (TOP, Qnil);
|
|
|
1300 break;
|
|
|
1301
|
|
|
1302 case Bdowncase:
|
|
|
1303 TOP = Fdowncase (TOP, Qnil);
|
|
|
1304 break;
|
|
|
1305
|
|
|
1306 case Bfset:
|
|
|
1307 {
|
|
|
1308 Lisp_Object arg = POP;
|
|
|
1309 TOP = Ffset (TOP, arg);
|
|
|
1310 break;
|
|
|
1311 }
|
|
|
1312
|
|
|
1313 case Bstring_equal:
|
|
|
1314 {
|
|
|
1315 Lisp_Object arg = POP;
|
|
|
1316 TOP = Fstring_equal (TOP, arg);
|
|
|
1317 break;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320 case Bstring_lessp:
|
|
|
1321 {
|
|
|
1322 Lisp_Object arg = POP;
|
|
|
1323 TOP = Fstring_lessp (TOP, arg);
|
|
|
1324 break;
|
|
|
1325 }
|
|
|
1326
|
|
|
1327 case Bsubstring:
|
|
|
1328 {
|
|
|
1329 Lisp_Object arg2 = POP;
|
|
|
1330 Lisp_Object arg1 = POP;
|
|
|
1331 TOP = Fsubstring (TOP, arg1, arg2);
|
|
|
1332 break;
|
|
|
1333 }
|
|
|
1334
|
|
|
1335 case Bcurrent_column:
|
|
|
1336 PUSH (make_int (current_column (current_buffer)));
|
|
|
1337 break;
|
|
|
1338
|
|
|
1339 case Bchar_after:
|
|
|
1340 TOP = Fchar_after (TOP, Qnil);
|
|
|
1341 break;
|
|
|
1342
|
|
|
1343 case Bindent_to:
|
|
|
1344 TOP = Findent_to (TOP, Qnil, Qnil);
|
|
|
1345 break;
|
|
|
1346
|
|
|
1347 case Bwiden:
|
|
|
1348 PUSH (Fwiden (Qnil));
|
|
|
1349 break;
|
|
|
1350
|
|
|
1351 case Bfollowing_char:
|
|
|
1352 PUSH (Ffollowing_char (Qnil));
|
|
|
1353 break;
|
|
|
1354
|
|
|
1355 case Bpreceding_char:
|
|
|
1356 PUSH (Fpreceding_char (Qnil));
|
|
|
1357 break;
|
|
|
1358
|
|
|
1359 case Beolp:
|
|
|
1360 PUSH (Feolp (Qnil));
|
|
|
1361 break;
|
|
|
1362
|
|
|
1363 case Beobp:
|
|
|
1364 PUSH (Feobp (Qnil));
|
|
|
1365 break;
|
|
|
1366
|
|
|
1367 case Bbolp:
|
|
|
1368 PUSH (Fbolp (Qnil));
|
|
|
1369 break;
|
|
|
1370
|
|
|
1371 case Bbobp:
|
|
|
1372 PUSH (Fbobp (Qnil));
|
|
|
1373 break;
|
|
|
1374
|
|
|
1375 case Bsave_current_buffer:
|
|
|
1376 record_unwind_protect (save_current_buffer_restore,
|
|
|
1377 Fcurrent_buffer ());
|
|
|
1378 break;
|
|
|
1379
|
|
|
1380 case Binteractive_p:
|
|
|
1381 PUSH (Finteractive_p ());
|
|
|
1382 break;
|
|
|
1383
|
|
|
1384 case Bforward_char:
|
|
|
1385 TOP = Fforward_char (TOP, Qnil);
|
|
|
1386 break;
|
|
|
1387
|
|
|
1388 case Bforward_word:
|
|
|
1389 TOP = Fforward_word (TOP, Qnil);
|
|
|
1390 break;
|
|
|
1391
|
|
|
1392 case Bforward_line:
|
|
|
1393 TOP = Fforward_line (TOP, Qnil);
|
|
|
1394 break;
|
|
|
1395
|
|
|
1396 case Bchar_syntax:
|
|
|
1397 TOP = Fchar_syntax (TOP, Qnil);
|
|
|
1398 break;
|
|
|
1399
|
|
|
1400 case Bbuffer_substring:
|
|
|
1401 {
|
|
|
1402 Lisp_Object arg = POP;
|
|
|
1403 TOP = Fbuffer_substring (TOP, arg, Qnil);
|
|
|
1404 break;
|
|
|
1405 }
|
|
|
1406
|
|
|
1407 case Bdelete_region:
|
|
|
1408 {
|
|
|
1409 Lisp_Object arg = POP;
|
|
|
1410 TOP = Fdelete_region (TOP, arg, Qnil);
|
|
|
1411 break;
|
|
|
1412 }
|
|
|
1413
|
|
|
1414 case Bnarrow_to_region:
|
|
|
1415 {
|
|
|
1416 Lisp_Object arg = POP;
|
|
|
1417 TOP = Fnarrow_to_region (TOP, arg, Qnil);
|
|
|
1418 break;
|
|
|
1419 }
|
|
|
1420
|
|
|
1421 case Bend_of_line:
|
|
|
1422 TOP = Fend_of_line (TOP, Qnil);
|
|
|
1423 break;
|
|
|
1424
|
|
|
1425 case Btemp_output_buffer_setup:
|
|
|
1426 temp_output_buffer_setup (TOP);
|
|
|
1427 TOP = Vstandard_output;
|
|
|
1428 break;
|
|
|
1429
|
|
|
1430 case Btemp_output_buffer_show:
|
|
|
1431 {
|
|
|
1432 Lisp_Object arg = POP;
|
|
|
1433 temp_output_buffer_show (TOP, Qnil);
|
|
|
1434 TOP = arg;
|
|
|
1435 /* GAG ME!! */
|
|
|
1436 /* pop binding of standard-output */
|
|
|
1437 unbind_to (specpdl_depth() - 1, Qnil);
|
|
|
1438 break;
|
|
|
1439 }
|
|
|
1440
|
|
|
1441 case Bold_eq:
|
|
|
1442 {
|
|
|
1443 Lisp_Object arg = POP;
|
|
|
1444 TOP = HACKEQ_UNSAFE (TOP, arg) ? Qt : Qnil;
|
|
|
1445 break;
|
|
|
1446 }
|
|
|
1447
|
|
|
1448 case Bold_memq:
|
|
|
1449 {
|
|
|
1450 Lisp_Object arg = POP;
|
|
|
1451 TOP = Fold_memq (TOP, arg);
|
|
|
1452 break;
|
|
|
1453 }
|
|
|
1454
|
|
|
1455 case Bold_equal:
|
|
|
1456 {
|
|
|
1457 Lisp_Object arg = POP;
|
|
|
1458 TOP = Fold_equal (TOP, arg);
|
|
|
1459 break;
|
|
|
1460 }
|
|
|
1461
|
|
|
1462 case Bold_member:
|
|
|
1463 {
|
|
|
1464 Lisp_Object arg = POP;
|
|
|
1465 TOP = Fold_member (TOP, arg);
|
|
|
1466 break;
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 case Bold_assq:
|
|
|
1470 {
|
|
|
1471 Lisp_Object arg = POP;
|
|
|
1472 TOP = Fold_assq (TOP, arg);
|
|
|
1473 break;
|
|
|
1474 }
|
|
|
1475
|
|
|
1476 default:
|
|
|
1477 abort();
|
|
|
1478 break;
|
|
|
1479 }
|
|
|
1480 return stack_ptr;
|
|
|
1481 }
|
|
|
1482
|
|
|
1483
|
|
|
1484 static void
|
|
|
1485 invalid_byte_code_error (char *error_message, ...)
|
|
|
1486 {
|
|
|
1487 Lisp_Object obj;
|
|
|
1488 va_list args;
|
|
|
1489 char *buf = alloca_array (char, strlen (error_message) + 128);
|
|
|
1490
|
|
|
1491 sprintf (buf, "%s", error_message);
|
|
|
1492 va_start (args, error_message);
|
|
442
|
1493 obj = emacs_doprnt_string_va ((const Bufbyte *) GETTEXT (buf), Qnil, -1,
|
|
428
|
1494 args);
|
|
|
1495 va_end (args);
|
|
|
1496
|
|
|
1497 signal_error (Qinvalid_byte_code, list1 (obj));
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 /* Check for valid opcodes. Change this when adding new opcodes. */
|
|
|
1501 static void
|
|
|
1502 check_opcode (Opcode opcode)
|
|
|
1503 {
|
|
|
1504 if ((opcode < Bvarref) ||
|
|
|
1505 (opcode == 0251) ||
|
|
|
1506 (opcode > Bassq && opcode < Bconstant))
|
|
|
1507 invalid_byte_code_error
|
|
|
1508 ("invalid opcode %d in instruction stream", opcode);
|
|
|
1509 }
|
|
|
1510
|
|
|
1511 /* Check that IDX is a valid offset into the `constants' vector */
|
|
|
1512 static void
|
|
|
1513 check_constants_index (int idx, Lisp_Object constants)
|
|
|
1514 {
|
|
|
1515 if (idx < 0 || idx >= XVECTOR_LENGTH (constants))
|
|
|
1516 invalid_byte_code_error
|
|
|
1517 ("reference %d to constants array out of range 0, %d",
|
|
|
1518 idx, XVECTOR_LENGTH (constants) - 1);
|
|
|
1519 }
|
|
|
1520
|
|
|
1521 /* Get next character from Lisp instructions string. */
|
|
|
1522 #define READ_INSTRUCTION_CHAR(lvalue) do { \
|
|
|
1523 (lvalue) = charptr_emchar (ptr); \
|
|
|
1524 INC_CHARPTR (ptr); \
|
|
|
1525 *icounts_ptr++ = program_ptr - program; \
|
|
|
1526 if (lvalue > UCHAR_MAX) \
|
|
|
1527 invalid_byte_code_error \
|
|
|
1528 ("Invalid character %c in byte code string"); \
|
|
|
1529 } while (0)
|
|
|
1530
|
|
|
1531 /* Get opcode from Lisp instructions string. */
|
|
|
1532 #define READ_OPCODE do { \
|
|
|
1533 unsigned int c; \
|
|
|
1534 READ_INSTRUCTION_CHAR (c); \
|
|
|
1535 opcode = (Opcode) c; \
|
|
|
1536 } while (0)
|
|
|
1537
|
|
|
1538 /* Get next operand, a uint8, from Lisp instructions string. */
|
|
|
1539 #define READ_OPERAND_1 do { \
|
|
|
1540 READ_INSTRUCTION_CHAR (arg); \
|
|
|
1541 argsize = 1; \
|
|
|
1542 } while (0)
|
|
|
1543
|
|
|
1544 /* Get next operand, a uint16, from Lisp instructions string. */
|
|
|
1545 #define READ_OPERAND_2 do { \
|
|
|
1546 unsigned int arg1, arg2; \
|
|
|
1547 READ_INSTRUCTION_CHAR (arg1); \
|
|
|
1548 READ_INSTRUCTION_CHAR (arg2); \
|
|
|
1549 arg = arg1 + (arg2 << 8); \
|
|
|
1550 argsize = 2; \
|
|
|
1551 } while (0)
|
|
|
1552
|
|
|
1553 /* Write 1 byte to PTR, incrementing PTR */
|
|
|
1554 #define WRITE_INT8(value, ptr) do { \
|
|
|
1555 *((ptr)++) = (value); \
|
|
|
1556 } while (0)
|
|
|
1557
|
|
|
1558 /* Write 2 bytes to PTR, incrementing PTR */
|
|
|
1559 #define WRITE_INT16(value, ptr) do { \
|
|
|
1560 WRITE_INT8 (((unsigned) (value)) & 0x00ff, (ptr)); \
|
|
|
1561 WRITE_INT8 (((unsigned) (value)) >> 8 , (ptr)); \
|
|
|
1562 } while (0)
|
|
|
1563
|
|
|
1564 /* We've changed our minds about the opcode we've already written. */
|
|
|
1565 #define REWRITE_OPCODE(new_opcode) ((void) (program_ptr[-1] = new_opcode))
|
|
|
1566
|
|
|
1567 /* Encode an op arg within the opcode, or as a 1 or 2-byte operand. */
|
|
|
1568 #define WRITE_NARGS(base_opcode) do { \
|
|
|
1569 if (arg <= 5) \
|
|
|
1570 { \
|
|
|
1571 REWRITE_OPCODE (base_opcode + arg); \
|
|
|
1572 } \
|
|
|
1573 else if (arg <= UCHAR_MAX) \
|
|
|
1574 { \
|
|
|
1575 REWRITE_OPCODE (base_opcode + 6); \
|
|
|
1576 WRITE_INT8 (arg, program_ptr); \
|
|
|
1577 } \
|
|
|
1578 else \
|
|
|
1579 { \
|
|
|
1580 REWRITE_OPCODE (base_opcode + 7); \
|
|
|
1581 WRITE_INT16 (arg, program_ptr); \
|
|
|
1582 } \
|
|
|
1583 } while (0)
|
|
|
1584
|
|
|
1585 /* Encode a constants reference within the opcode, or as a 2-byte operand. */
|
|
|
1586 #define WRITE_CONSTANT do { \
|
|
|
1587 check_constants_index(arg, constants); \
|
|
|
1588 if (arg <= UCHAR_MAX - Bconstant) \
|
|
|
1589 { \
|
|
|
1590 REWRITE_OPCODE (Bconstant + arg); \
|
|
|
1591 } \
|
|
|
1592 else \
|
|
|
1593 { \
|
|
|
1594 REWRITE_OPCODE (Bconstant2); \
|
|
|
1595 WRITE_INT16 (arg, program_ptr); \
|
|
|
1596 } \
|
|
|
1597 } while (0)
|
|
|
1598
|
|
|
1599 #define WRITE_OPCODE WRITE_INT8 (opcode, program_ptr)
|
|
|
1600
|
|
|
1601 /* Compile byte code instructions into free space provided by caller, with
|
|
|
1602 size >= (2 * string_char_length (instructions) + 1) * sizeof (Opbyte).
|
|
|
1603 Returns length of compiled code. */
|
|
|
1604 static void
|
|
|
1605 optimize_byte_code (/* in */
|
|
|
1606 Lisp_Object instructions,
|
|
|
1607 Lisp_Object constants,
|
|
|
1608 /* out */
|
|
442
|
1609 Opbyte * const program,
|
|
|
1610 int * const program_length,
|
|
|
1611 int * const varbind_count)
|
|
428
|
1612 {
|
|
|
1613 size_t instructions_length = XSTRING_LENGTH (instructions);
|
|
|
1614 size_t comfy_size = 2 * instructions_length;
|
|
|
1615
|
|
442
|
1616 int * const icounts = alloca_array (int, comfy_size);
|
|
428
|
1617 int * icounts_ptr = icounts;
|
|
|
1618
|
|
|
1619 /* We maintain a table of jumps in the source code. */
|
|
|
1620 struct jump
|
|
|
1621 {
|
|
|
1622 int from;
|
|
|
1623 int to;
|
|
|
1624 };
|
|
442
|
1625 struct jump * const jumps = alloca_array (struct jump, comfy_size);
|
|
428
|
1626 struct jump *jumps_ptr = jumps;
|
|
|
1627
|
|
|
1628 Opbyte *program_ptr = program;
|
|
|
1629
|
|
442
|
1630 const Bufbyte *ptr = XSTRING_DATA (instructions);
|
|
|
1631 const Bufbyte * const end = ptr + instructions_length;
|
|
428
|
1632
|
|
|
1633 *varbind_count = 0;
|
|
|
1634
|
|
|
1635 while (ptr < end)
|
|
|
1636 {
|
|
|
1637 Opcode opcode;
|
|
|
1638 int arg;
|
|
|
1639 int argsize = 0;
|
|
|
1640 READ_OPCODE;
|
|
|
1641 WRITE_OPCODE;
|
|
|
1642
|
|
|
1643 switch (opcode)
|
|
|
1644 {
|
|
|
1645 Lisp_Object val;
|
|
|
1646
|
|
|
1647 case Bvarref+7: READ_OPERAND_2; goto do_varref;
|
|
|
1648 case Bvarref+6: READ_OPERAND_1; goto do_varref;
|
|
|
1649 case Bvarref: case Bvarref+1: case Bvarref+2:
|
|
|
1650 case Bvarref+3: case Bvarref+4: case Bvarref+5:
|
|
|
1651 arg = opcode - Bvarref;
|
|
|
1652 do_varref:
|
|
|
1653 check_constants_index (arg, constants);
|
|
|
1654 val = XVECTOR_DATA (constants) [arg];
|
|
|
1655 if (!SYMBOLP (val))
|
|
|
1656 invalid_byte_code_error ("variable reference to non-symbol %S", val);
|
|
|
1657 if (EQ (val, Qnil) || EQ (val, Qt) || (SYMBOL_IS_KEYWORD (val)))
|
|
|
1658 invalid_byte_code_error ("variable reference to constant symbol %s",
|
|
|
1659 string_data (XSYMBOL (val)->name));
|
|
|
1660 WRITE_NARGS (Bvarref);
|
|
|
1661 break;
|
|
|
1662
|
|
|
1663 case Bvarset+7: READ_OPERAND_2; goto do_varset;
|
|
|
1664 case Bvarset+6: READ_OPERAND_1; goto do_varset;
|
|
|
1665 case Bvarset: case Bvarset+1: case Bvarset+2:
|
|
|
1666 case Bvarset+3: case Bvarset+4: case Bvarset+5:
|
|
|
1667 arg = opcode - Bvarset;
|
|
|
1668 do_varset:
|
|
|
1669 check_constants_index (arg, constants);
|
|
|
1670 val = XVECTOR_DATA (constants) [arg];
|
|
|
1671 if (!SYMBOLP (val))
|
|
|
1672 invalid_byte_code_error ("attempt to set non-symbol %S", val);
|
|
|
1673 if (EQ (val, Qnil) || EQ (val, Qt))
|
|
|
1674 invalid_byte_code_error ("attempt to set constant symbol %s",
|
|
|
1675 string_data (XSYMBOL (val)->name));
|
|
|
1676 /* Ignore assignments to keywords by converting to Bdiscard.
|
|
|
1677 For backward compatibility only - we'd like to make this an error. */
|
|
|
1678 if (SYMBOL_IS_KEYWORD (val))
|
|
|
1679 REWRITE_OPCODE (Bdiscard);
|
|
|
1680 else
|
|
|
1681 WRITE_NARGS (Bvarset);
|
|
|
1682 break;
|
|
|
1683
|
|
|
1684 case Bvarbind+7: READ_OPERAND_2; goto do_varbind;
|
|
|
1685 case Bvarbind+6: READ_OPERAND_1; goto do_varbind;
|
|
|
1686 case Bvarbind: case Bvarbind+1: case Bvarbind+2:
|
|
|
1687 case Bvarbind+3: case Bvarbind+4: case Bvarbind+5:
|
|
|
1688 arg = opcode - Bvarbind;
|
|
|
1689 do_varbind:
|
|
|
1690 (*varbind_count)++;
|
|
|
1691 check_constants_index (arg, constants);
|
|
|
1692 val = XVECTOR_DATA (constants) [arg];
|
|
|
1693 if (!SYMBOLP (val))
|
|
|
1694 invalid_byte_code_error ("attempt to let-bind non-symbol %S", val);
|
|
|
1695 if (EQ (val, Qnil) || EQ (val, Qt) || (SYMBOL_IS_KEYWORD (val)))
|
|
|
1696 invalid_byte_code_error ("attempt to let-bind constant symbol %s",
|
|
|
1697 string_data (XSYMBOL (val)->name));
|
|
|
1698 WRITE_NARGS (Bvarbind);
|
|
|
1699 break;
|
|
|
1700
|
|
|
1701 case Bcall+7: READ_OPERAND_2; goto do_call;
|
|
|
1702 case Bcall+6: READ_OPERAND_1; goto do_call;
|
|
|
1703 case Bcall: case Bcall+1: case Bcall+2:
|
|
|
1704 case Bcall+3: case Bcall+4: case Bcall+5:
|
|
|
1705 arg = opcode - Bcall;
|
|
|
1706 do_call:
|
|
|
1707 WRITE_NARGS (Bcall);
|
|
|
1708 break;
|
|
|
1709
|
|
|
1710 case Bunbind+7: READ_OPERAND_2; goto do_unbind;
|
|
|
1711 case Bunbind+6: READ_OPERAND_1; goto do_unbind;
|
|
|
1712 case Bunbind: case Bunbind+1: case Bunbind+2:
|
|
|
1713 case Bunbind+3: case Bunbind+4: case Bunbind+5:
|
|
|
1714 arg = opcode - Bunbind;
|
|
|
1715 do_unbind:
|
|
|
1716 WRITE_NARGS (Bunbind);
|
|
|
1717 break;
|
|
|
1718
|
|
|
1719 case Bgoto:
|
|
|
1720 case Bgotoifnil:
|
|
|
1721 case Bgotoifnonnil:
|
|
|
1722 case Bgotoifnilelsepop:
|
|
|
1723 case Bgotoifnonnilelsepop:
|
|
|
1724 READ_OPERAND_2;
|
|
|
1725 /* Make program_ptr-relative */
|
|
|
1726 arg += icounts - (icounts_ptr - argsize);
|
|
|
1727 goto do_jump;
|
|
|
1728
|
|
|
1729 case BRgoto:
|
|
|
1730 case BRgotoifnil:
|
|
|
1731 case BRgotoifnonnil:
|
|
|
1732 case BRgotoifnilelsepop:
|
|
|
1733 case BRgotoifnonnilelsepop:
|
|
|
1734 READ_OPERAND_1;
|
|
|
1735 /* Make program_ptr-relative */
|
|
|
1736 arg -= 127;
|
|
|
1737 do_jump:
|
|
|
1738 /* Record program-relative goto addresses in `jumps' table */
|
|
|
1739 jumps_ptr->from = icounts_ptr - icounts - argsize;
|
|
|
1740 jumps_ptr->to = jumps_ptr->from + arg;
|
|
|
1741 jumps_ptr++;
|
|
|
1742 if (arg >= -1 && arg <= argsize)
|
|
|
1743 invalid_byte_code_error
|
|
|
1744 ("goto instruction is its own target");
|
|
|
1745 if (arg <= SCHAR_MIN ||
|
|
|
1746 arg > SCHAR_MAX)
|
|
|
1747 {
|
|
|
1748 if (argsize == 1)
|
|
|
1749 REWRITE_OPCODE (opcode + Bgoto - BRgoto);
|
|
|
1750 WRITE_INT16 (arg, program_ptr);
|
|
|
1751 }
|
|
|
1752 else
|
|
|
1753 {
|
|
|
1754 if (argsize == 2)
|
|
|
1755 REWRITE_OPCODE (opcode + BRgoto - Bgoto);
|
|
|
1756 WRITE_INT8 (arg, program_ptr);
|
|
|
1757 }
|
|
|
1758 break;
|
|
|
1759
|
|
|
1760 case Bconstant2:
|
|
|
1761 READ_OPERAND_2;
|
|
|
1762 WRITE_CONSTANT;
|
|
|
1763 break;
|
|
|
1764
|
|
|
1765 case BlistN:
|
|
|
1766 case BconcatN:
|
|
|
1767 case BinsertN:
|
|
|
1768 READ_OPERAND_1;
|
|
|
1769 WRITE_INT8 (arg, program_ptr);
|
|
|
1770 break;
|
|
|
1771
|
|
|
1772 default:
|
|
|
1773 if (opcode < Bconstant)
|
|
|
1774 check_opcode (opcode);
|
|
|
1775 else
|
|
|
1776 {
|
|
|
1777 arg = opcode - Bconstant;
|
|
|
1778 WRITE_CONSTANT;
|
|
|
1779 }
|
|
|
1780 break;
|
|
|
1781 }
|
|
|
1782 }
|
|
|
1783
|
|
|
1784 /* Fix up jumps table to refer to NEW offsets. */
|
|
|
1785 {
|
|
|
1786 struct jump *j;
|
|
|
1787 for (j = jumps; j < jumps_ptr; j++)
|
|
|
1788 {
|
|
|
1789 #ifdef ERROR_CHECK_BYTE_CODE
|
|
|
1790 assert (j->from < icounts_ptr - icounts);
|
|
|
1791 assert (j->to < icounts_ptr - icounts);
|
|
|
1792 #endif
|
|
|
1793 j->from = icounts[j->from];
|
|
|
1794 j->to = icounts[j->to];
|
|
|
1795 #ifdef ERROR_CHECK_BYTE_CODE
|
|
|
1796 assert (j->from < program_ptr - program);
|
|
|
1797 assert (j->to < program_ptr - program);
|
|
|
1798 check_opcode ((Opcode) (program[j->from-1]));
|
|
|
1799 #endif
|
|
|
1800 check_opcode ((Opcode) (program[j->to]));
|
|
|
1801 }
|
|
|
1802 }
|
|
|
1803
|
|
|
1804 /* Fixup jumps in byte-code until no more fixups needed */
|
|
|
1805 {
|
|
|
1806 int more_fixups_needed = 1;
|
|
|
1807
|
|
|
1808 while (more_fixups_needed)
|
|
|
1809 {
|
|
|
1810 struct jump *j;
|
|
|
1811 more_fixups_needed = 0;
|
|
|
1812 for (j = jumps; j < jumps_ptr; j++)
|
|
|
1813 {
|
|
|
1814 int from = j->from;
|
|
|
1815 int to = j->to;
|
|
|
1816 int jump = to - from;
|
|
|
1817 Opbyte *p = program + from;
|
|
|
1818 Opcode opcode = (Opcode) p[-1];
|
|
|
1819 if (!more_fixups_needed)
|
|
|
1820 check_opcode ((Opcode) p[jump]);
|
|
|
1821 assert (to >= 0 && program + to < program_ptr);
|
|
|
1822 switch (opcode)
|
|
|
1823 {
|
|
|
1824 case Bgoto:
|
|
|
1825 case Bgotoifnil:
|
|
|
1826 case Bgotoifnonnil:
|
|
|
1827 case Bgotoifnilelsepop:
|
|
|
1828 case Bgotoifnonnilelsepop:
|
|
|
1829 WRITE_INT16 (jump, p);
|
|
|
1830 break;
|
|
|
1831
|
|
|
1832 case BRgoto:
|
|
|
1833 case BRgotoifnil:
|
|
|
1834 case BRgotoifnonnil:
|
|
|
1835 case BRgotoifnilelsepop:
|
|
|
1836 case BRgotoifnonnilelsepop:
|
|
|
1837 if (jump > SCHAR_MIN &&
|
|
|
1838 jump <= SCHAR_MAX)
|
|
|
1839 {
|
|
|
1840 WRITE_INT8 (jump, p);
|
|
|
1841 }
|
|
|
1842 else /* barf */
|
|
|
1843 {
|
|
|
1844 struct jump *jj;
|
|
|
1845 for (jj = jumps; jj < jumps_ptr; jj++)
|
|
|
1846 {
|
|
|
1847 assert (jj->from < program_ptr - program);
|
|
|
1848 assert (jj->to < program_ptr - program);
|
|
|
1849 if (jj->from > from) jj->from++;
|
|
|
1850 if (jj->to > from) jj->to++;
|
|
|
1851 }
|
|
|
1852 p[-1] += Bgoto - BRgoto;
|
|
|
1853 more_fixups_needed = 1;
|
|
|
1854 memmove (p+1, p, program_ptr++ - p);
|
|
|
1855 WRITE_INT16 (jump, p);
|
|
|
1856 }
|
|
|
1857 break;
|
|
|
1858
|
|
|
1859 default:
|
|
|
1860 abort();
|
|
|
1861 break;
|
|
|
1862 }
|
|
|
1863 }
|
|
|
1864 }
|
|
|
1865 }
|
|
|
1866
|
|
|
1867 /* *program_ptr++ = 0; */
|
|
|
1868 *program_length = program_ptr - program;
|
|
|
1869 }
|
|
|
1870
|
|
|
1871 /* Optimize the byte code and store the optimized program, only
|
|
|
1872 understood by bytecode.c, in an opaque object in the
|
|
|
1873 instructions slot of the Compiled_Function object. */
|
|
|
1874 void
|
|
|
1875 optimize_compiled_function (Lisp_Object compiled_function)
|
|
|
1876 {
|
|
|
1877 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (compiled_function);
|
|
|
1878 int program_length;
|
|
|
1879 int varbind_count;
|
|
|
1880 Opbyte *program;
|
|
|
1881
|
|
|
1882 /* If we have not actually read the bytecode string
|
|
|
1883 and constants vector yet, fetch them from the file. */
|
|
|
1884 if (CONSP (f->instructions))
|
|
|
1885 Ffetch_bytecode (compiled_function);
|
|
|
1886
|
|
|
1887 if (STRINGP (f->instructions))
|
|
|
1888 {
|
|
|
1889 /* XSTRING_LENGTH() is more efficient than XSTRING_CHAR_LENGTH(),
|
|
|
1890 which would be slightly more `proper' */
|
|
|
1891 program = alloca_array (Opbyte, 1 + 2 * XSTRING_LENGTH (f->instructions));
|
|
|
1892 optimize_byte_code (f->instructions, f->constants,
|
|
|
1893 program, &program_length, &varbind_count);
|
|
|
1894 f->specpdl_depth = XINT (Flength (f->arglist)) + varbind_count;
|
|
|
1895 f->instructions =
|
|
440
|
1896 make_opaque (program, program_length * sizeof (Opbyte));
|
|
428
|
1897 }
|
|
|
1898
|
|
|
1899 assert (OPAQUEP (f->instructions));
|
|
|
1900 }
|
|
|
1901
|
|
|
1902 /************************************************************************/
|
|
|
1903 /* The compiled-function object type */
|
|
|
1904 /************************************************************************/
|
|
|
1905 static void
|
|
|
1906 print_compiled_function (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1907 int escapeflag)
|
|
|
1908 {
|
|
|
1909 /* This function can GC */
|
|
|
1910 Lisp_Compiled_Function *f =
|
|
|
1911 XCOMPILED_FUNCTION (obj); /* GC doesn't relocate */
|
|
|
1912 int docp = f->flags.documentationp;
|
|
|
1913 int intp = f->flags.interactivep;
|
|
|
1914 struct gcpro gcpro1, gcpro2;
|
|
|
1915 char buf[100];
|
|
|
1916 GCPRO2 (obj, printcharfun);
|
|
|
1917
|
|
|
1918 write_c_string (print_readably ? "#[" : "#<compiled-function ", printcharfun);
|
|
|
1919 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK
|
|
|
1920 if (!print_readably)
|
|
|
1921 {
|
|
|
1922 Lisp_Object ann = compiled_function_annotation (f);
|
|
|
1923 if (!NILP (ann))
|
|
|
1924 {
|
|
|
1925 write_c_string ("(from ", printcharfun);
|
|
|
1926 print_internal (ann, printcharfun, 1);
|
|
|
1927 write_c_string (") ", printcharfun);
|
|
|
1928 }
|
|
|
1929 }
|
|
|
1930 #endif /* COMPILED_FUNCTION_ANNOTATION_HACK */
|
|
|
1931 /* COMPILED_ARGLIST = 0 */
|
|
|
1932 print_internal (compiled_function_arglist (f), printcharfun, escapeflag);
|
|
|
1933
|
|
|
1934 /* COMPILED_INSTRUCTIONS = 1 */
|
|
|
1935 write_c_string (" ", printcharfun);
|
|
|
1936 {
|
|
|
1937 struct gcpro ngcpro1;
|
|
|
1938 Lisp_Object instructions = compiled_function_instructions (f);
|
|
|
1939 NGCPRO1 (instructions);
|
|
|
1940 if (STRINGP (instructions) && !print_readably)
|
|
|
1941 {
|
|
|
1942 /* We don't usually want to see that junk in the bytecode. */
|
|
|
1943 sprintf (buf, "\"...(%ld)\"",
|
|
|
1944 (long) XSTRING_CHAR_LENGTH (instructions));
|
|
|
1945 write_c_string (buf, printcharfun);
|
|
|
1946 }
|
|
|
1947 else
|
|
|
1948 print_internal (instructions, printcharfun, escapeflag);
|
|
|
1949 NUNGCPRO;
|
|
|
1950 }
|
|
|
1951
|
|
|
1952 /* COMPILED_CONSTANTS = 2 */
|
|
|
1953 write_c_string (" ", printcharfun);
|
|
|
1954 print_internal (compiled_function_constants (f), printcharfun, escapeflag);
|
|
|
1955
|
|
|
1956 /* COMPILED_STACK_DEPTH = 3 */
|
|
|
1957 sprintf (buf, " %d", compiled_function_stack_depth (f));
|
|
|
1958 write_c_string (buf, printcharfun);
|
|
|
1959
|
|
|
1960 /* COMPILED_DOC_STRING = 4 */
|
|
|
1961 if (docp || intp)
|
|
|
1962 {
|
|
|
1963 write_c_string (" ", printcharfun);
|
|
|
1964 print_internal (compiled_function_documentation (f), printcharfun,
|
|
|
1965 escapeflag);
|
|
|
1966 }
|
|
|
1967
|
|
|
1968 /* COMPILED_INTERACTIVE = 5 */
|
|
|
1969 if (intp)
|
|
|
1970 {
|
|
|
1971 write_c_string (" ", printcharfun);
|
|
|
1972 print_internal (compiled_function_interactive (f), printcharfun,
|
|
|
1973 escapeflag);
|
|
|
1974 }
|
|
|
1975
|
|
|
1976 UNGCPRO;
|
|
|
1977 write_c_string (print_readably ? "]" : ">", printcharfun);
|
|
|
1978 }
|
|
|
1979
|
|
|
1980
|
|
|
1981 static Lisp_Object
|
|
|
1982 mark_compiled_function (Lisp_Object obj)
|
|
|
1983 {
|
|
|
1984 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (obj);
|
|
|
1985
|
|
|
1986 mark_object (f->instructions);
|
|
|
1987 mark_object (f->arglist);
|
|
|
1988 mark_object (f->doc_and_interactive);
|
|
|
1989 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK
|
|
|
1990 mark_object (f->annotated);
|
|
|
1991 #endif
|
|
|
1992 /* tail-recurse on constants */
|
|
|
1993 return f->constants;
|
|
|
1994 }
|
|
|
1995
|
|
|
1996 static int
|
|
|
1997 compiled_function_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
|
|
|
1998 {
|
|
|
1999 Lisp_Compiled_Function *f1 = XCOMPILED_FUNCTION (obj1);
|
|
|
2000 Lisp_Compiled_Function *f2 = XCOMPILED_FUNCTION (obj2);
|
|
|
2001 return
|
|
|
2002 (f1->flags.documentationp == f2->flags.documentationp &&
|
|
|
2003 f1->flags.interactivep == f2->flags.interactivep &&
|
|
|
2004 f1->flags.domainp == f2->flags.domainp && /* I18N3 */
|
|
|
2005 internal_equal (compiled_function_instructions (f1),
|
|
|
2006 compiled_function_instructions (f2), depth + 1) &&
|
|
|
2007 internal_equal (f1->constants, f2->constants, depth + 1) &&
|
|
|
2008 internal_equal (f1->arglist, f2->arglist, depth + 1) &&
|
|
|
2009 internal_equal (f1->doc_and_interactive,
|
|
|
2010 f2->doc_and_interactive, depth + 1));
|
|
|
2011 }
|
|
|
2012
|
|
|
2013 static unsigned long
|
|
|
2014 compiled_function_hash (Lisp_Object obj, int depth)
|
|
|
2015 {
|
|
|
2016 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (obj);
|
|
|
2017 return HASH3 ((f->flags.documentationp << 2) +
|
|
|
2018 (f->flags.interactivep << 1) +
|
|
|
2019 f->flags.domainp,
|
|
|
2020 internal_hash (f->instructions, depth + 1),
|
|
|
2021 internal_hash (f->constants, depth + 1));
|
|
|
2022 }
|
|
|
2023
|
|
|
2024 static const struct lrecord_description compiled_function_description[] = {
|
|
440
|
2025 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, instructions) },
|
|
|
2026 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, constants) },
|
|
|
2027 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, arglist) },
|
|
|
2028 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, doc_and_interactive) },
|
|
428
|
2029 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK
|
|
440
|
2030 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, annotated) },
|
|
428
|
2031 #endif
|
|
|
2032 { XD_END }
|
|
|
2033 };
|
|
|
2034
|
|
|
2035 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("compiled-function", compiled_function,
|
|
|
2036 mark_compiled_function,
|
|
|
2037 print_compiled_function, 0,
|
|
|
2038 compiled_function_equal,
|
|
|
2039 compiled_function_hash,
|
|
|
2040 compiled_function_description,
|
|
|
2041 Lisp_Compiled_Function);
|
|
|
2042
|
|
|
2043 DEFUN ("compiled-function-p", Fcompiled_function_p, 1, 1, 0, /*
|
|
|
2044 Return t if OBJECT is a byte-compiled function object.
|
|
|
2045 */
|
|
|
2046 (object))
|
|
|
2047 {
|
|
|
2048 return COMPILED_FUNCTIONP (object) ? Qt : Qnil;
|
|
|
2049 }
|
|
|
2050
|
|
|
2051 /************************************************************************/
|
|
|
2052 /* compiled-function object accessor functions */
|
|
|
2053 /************************************************************************/
|
|
|
2054
|
|
|
2055 Lisp_Object
|
|
|
2056 compiled_function_arglist (Lisp_Compiled_Function *f)
|
|
|
2057 {
|
|
|
2058 return f->arglist;
|
|
|
2059 }
|
|
|
2060
|
|
|
2061 Lisp_Object
|
|
|
2062 compiled_function_instructions (Lisp_Compiled_Function *f)
|
|
|
2063 {
|
|
|
2064 if (! OPAQUEP (f->instructions))
|
|
|
2065 return f->instructions;
|
|
|
2066
|
|
|
2067 {
|
|
|
2068 /* Invert action performed by optimize_byte_code() */
|
|
|
2069 Lisp_Opaque *opaque = XOPAQUE (f->instructions);
|
|
|
2070
|
|
442
|
2071 Bufbyte * const buffer =
|
|
428
|
2072 alloca_array (Bufbyte, OPAQUE_SIZE (opaque) * MAX_EMCHAR_LEN);
|
|
|
2073 Bufbyte *bp = buffer;
|
|
|
2074
|
|
442
|
2075 const Opbyte * const program = (const Opbyte *) OPAQUE_DATA (opaque);
|
|
|
2076 const Opbyte *program_ptr = program;
|
|
|
2077 const Opbyte * const program_end = program_ptr + OPAQUE_SIZE (opaque);
|
|
428
|
2078
|
|
|
2079 while (program_ptr < program_end)
|
|
|
2080 {
|
|
|
2081 Opcode opcode = (Opcode) READ_UINT_1;
|
|
|
2082 bp += set_charptr_emchar (bp, opcode);
|
|
|
2083 switch (opcode)
|
|
|
2084 {
|
|
|
2085 case Bvarref+7:
|
|
|
2086 case Bvarset+7:
|
|
|
2087 case Bvarbind+7:
|
|
|
2088 case Bcall+7:
|
|
|
2089 case Bunbind+7:
|
|
|
2090 case Bconstant2:
|
|
|
2091 bp += set_charptr_emchar (bp, READ_UINT_1);
|
|
|
2092 bp += set_charptr_emchar (bp, READ_UINT_1);
|
|
|
2093 break;
|
|
|
2094
|
|
|
2095 case Bvarref+6:
|
|
|
2096 case Bvarset+6:
|
|
|
2097 case Bvarbind+6:
|
|
|
2098 case Bcall+6:
|
|
|
2099 case Bunbind+6:
|
|
|
2100 case BlistN:
|
|
|
2101 case BconcatN:
|
|
|
2102 case BinsertN:
|
|
|
2103 bp += set_charptr_emchar (bp, READ_UINT_1);
|
|
|
2104 break;
|
|
|
2105
|
|
|
2106 case Bgoto:
|
|
|
2107 case Bgotoifnil:
|
|
|
2108 case Bgotoifnonnil:
|
|
|
2109 case Bgotoifnilelsepop:
|
|
|
2110 case Bgotoifnonnilelsepop:
|
|
|
2111 {
|
|
|
2112 int jump = READ_INT_2;
|
|
|
2113 Opbyte buf2[2];
|
|
|
2114 Opbyte *buf2p = buf2;
|
|
|
2115 /* Convert back to program-relative address */
|
|
|
2116 WRITE_INT16 (jump + (program_ptr - 2 - program), buf2p);
|
|
|
2117 bp += set_charptr_emchar (bp, buf2[0]);
|
|
|
2118 bp += set_charptr_emchar (bp, buf2[1]);
|
|
|
2119 break;
|
|
|
2120 }
|
|
|
2121
|
|
|
2122 case BRgoto:
|
|
|
2123 case BRgotoifnil:
|
|
|
2124 case BRgotoifnonnil:
|
|
|
2125 case BRgotoifnilelsepop:
|
|
|
2126 case BRgotoifnonnilelsepop:
|
|
|
2127 bp += set_charptr_emchar (bp, READ_INT_1 + 127);
|
|
|
2128 break;
|
|
|
2129
|
|
|
2130 default:
|
|
|
2131 break;
|
|
|
2132 }
|
|
|
2133 }
|
|
|
2134 return make_string (buffer, bp - buffer);
|
|
|
2135 }
|
|
|
2136 }
|
|
|
2137
|
|
|
2138 Lisp_Object
|
|
|
2139 compiled_function_constants (Lisp_Compiled_Function *f)
|
|
|
2140 {
|
|
|
2141 return f->constants;
|
|
|
2142 }
|
|
|
2143
|
|
|
2144 int
|
|
|
2145 compiled_function_stack_depth (Lisp_Compiled_Function *f)
|
|
|
2146 {
|
|
|
2147 return f->stack_depth;
|
|
|
2148 }
|
|
|
2149
|
|
|
2150 /* The compiled_function->doc_and_interactive slot uses the minimal
|
|
|
2151 number of conses, based on compiled_function->flags; it may take
|
|
|
2152 any of the following forms:
|
|
|
2153
|
|
|
2154 doc
|
|
|
2155 interactive
|
|
|
2156 domain
|
|
|
2157 (doc . interactive)
|
|
|
2158 (doc . domain)
|
|
|
2159 (interactive . domain)
|
|
|
2160 (doc . (interactive . domain))
|
|
|
2161 */
|
|
|
2162
|
|
|
2163 /* Caller must check flags.interactivep first */
|
|
|
2164 Lisp_Object
|
|
|
2165 compiled_function_interactive (Lisp_Compiled_Function *f)
|
|
|
2166 {
|
|
|
2167 assert (f->flags.interactivep);
|
|
|
2168 if (f->flags.documentationp && f->flags.domainp)
|
|
|
2169 return XCAR (XCDR (f->doc_and_interactive));
|
|
|
2170 else if (f->flags.documentationp)
|
|
|
2171 return XCDR (f->doc_and_interactive);
|
|
|
2172 else if (f->flags.domainp)
|
|
|
2173 return XCAR (f->doc_and_interactive);
|
|
|
2174 else
|
|
|
2175 return f->doc_and_interactive;
|
|
|
2176 }
|
|
|
2177
|
|
|
2178 /* Caller need not check flags.documentationp first */
|
|
|
2179 Lisp_Object
|
|
|
2180 compiled_function_documentation (Lisp_Compiled_Function *f)
|
|
|
2181 {
|
|
|
2182 if (! f->flags.documentationp)
|
|
|
2183 return Qnil;
|
|
|
2184 else if (f->flags.interactivep && f->flags.domainp)
|
|
|
2185 return XCAR (f->doc_and_interactive);
|
|
|
2186 else if (f->flags.interactivep)
|
|
|
2187 return XCAR (f->doc_and_interactive);
|
|
|
2188 else if (f->flags.domainp)
|
|
|
2189 return XCAR (f->doc_and_interactive);
|
|
|
2190 else
|
|
|
2191 return f->doc_and_interactive;
|
|
|
2192 }
|
|
|
2193
|
|
|
2194 /* Caller need not check flags.domainp first */
|
|
|
2195 Lisp_Object
|
|
|
2196 compiled_function_domain (Lisp_Compiled_Function *f)
|
|
|
2197 {
|
|
|
2198 if (! f->flags.domainp)
|
|
|
2199 return Qnil;
|
|
|
2200 else if (f->flags.documentationp && f->flags.interactivep)
|
|
|
2201 return XCDR (XCDR (f->doc_and_interactive));
|
|
|
2202 else if (f->flags.documentationp)
|
|
|
2203 return XCDR (f->doc_and_interactive);
|
|
|
2204 else if (f->flags.interactivep)
|
|
|
2205 return XCDR (f->doc_and_interactive);
|
|
|
2206 else
|
|
|
2207 return f->doc_and_interactive;
|
|
|
2208 }
|
|
|
2209
|
|
|
2210 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK
|
|
|
2211
|
|
|
2212 Lisp_Object
|
|
|
2213 compiled_function_annotation (Lisp_Compiled_Function *f)
|
|
|
2214 {
|
|
|
2215 return f->annotated;
|
|
|
2216 }
|
|
|
2217
|
|
|
2218 #endif
|
|
|
2219
|
|
|
2220 /* used only by Snarf-documentation; there must be doc already. */
|
|
|
2221 void
|
|
|
2222 set_compiled_function_documentation (Lisp_Compiled_Function *f,
|
|
|
2223 Lisp_Object new_doc)
|
|
|
2224 {
|
|
|
2225 assert (f->flags.documentationp);
|
|
|
2226 assert (INTP (new_doc) || STRINGP (new_doc));
|
|
|
2227
|
|
|
2228 if (f->flags.interactivep && f->flags.domainp)
|
|
|
2229 XCAR (f->doc_and_interactive) = new_doc;
|
|
|
2230 else if (f->flags.interactivep)
|
|
|
2231 XCAR (f->doc_and_interactive) = new_doc;
|
|
|
2232 else if (f->flags.domainp)
|
|
|
2233 XCAR (f->doc_and_interactive) = new_doc;
|
|
|
2234 else
|
|
|
2235 f->doc_and_interactive = new_doc;
|
|
|
2236 }
|
|
|
2237
|
|
|
2238
|
|
|
2239 DEFUN ("compiled-function-arglist", Fcompiled_function_arglist, 1, 1, 0, /*
|
|
|
2240 Return the argument list of the compiled-function object FUNCTION.
|
|
|
2241 */
|
|
|
2242 (function))
|
|
|
2243 {
|
|
|
2244 CHECK_COMPILED_FUNCTION (function);
|
|
|
2245 return compiled_function_arglist (XCOMPILED_FUNCTION (function));
|
|
|
2246 }
|
|
|
2247
|
|
|
2248 DEFUN ("compiled-function-instructions", Fcompiled_function_instructions, 1, 1, 0, /*
|
|
|
2249 Return the byte-opcode string of the compiled-function object FUNCTION.
|
|
|
2250 */
|
|
|
2251 (function))
|
|
|
2252 {
|
|
|
2253 CHECK_COMPILED_FUNCTION (function);
|
|
|
2254 return compiled_function_instructions (XCOMPILED_FUNCTION (function));
|
|
|
2255 }
|
|
|
2256
|
|
|
2257 DEFUN ("compiled-function-constants", Fcompiled_function_constants, 1, 1, 0, /*
|
|
|
2258 Return the constants vector of the compiled-function object FUNCTION.
|
|
|
2259 */
|
|
|
2260 (function))
|
|
|
2261 {
|
|
|
2262 CHECK_COMPILED_FUNCTION (function);
|
|
|
2263 return compiled_function_constants (XCOMPILED_FUNCTION (function));
|
|
|
2264 }
|
|
|
2265
|
|
|
2266 DEFUN ("compiled-function-stack-depth", Fcompiled_function_stack_depth, 1, 1, 0, /*
|
|
|
2267 Return the max stack depth of the compiled-function object FUNCTION.
|
|
|
2268 */
|
|
|
2269 (function))
|
|
|
2270 {
|
|
|
2271 CHECK_COMPILED_FUNCTION (function);
|
|
|
2272 return make_int (compiled_function_stack_depth (XCOMPILED_FUNCTION (function)));
|
|
|
2273 }
|
|
|
2274
|
|
|
2275 DEFUN ("compiled-function-doc-string", Fcompiled_function_doc_string, 1, 1, 0, /*
|
|
|
2276 Return the doc string of the compiled-function object FUNCTION, if available.
|
|
|
2277 Functions that had their doc strings snarfed into the DOC file will have
|
|
|
2278 an integer returned instead of a string.
|
|
|
2279 */
|
|
|
2280 (function))
|
|
|
2281 {
|
|
|
2282 CHECK_COMPILED_FUNCTION (function);
|
|
|
2283 return compiled_function_documentation (XCOMPILED_FUNCTION (function));
|
|
|
2284 }
|
|
|
2285
|
|
|
2286 DEFUN ("compiled-function-interactive", Fcompiled_function_interactive, 1, 1, 0, /*
|
|
|
2287 Return the interactive spec of the compiled-function object FUNCTION, or nil.
|
|
|
2288 If non-nil, the return value will be a list whose first element is
|
|
|
2289 `interactive' and whose second element is the interactive spec.
|
|
|
2290 */
|
|
|
2291 (function))
|
|
|
2292 {
|
|
|
2293 CHECK_COMPILED_FUNCTION (function);
|
|
|
2294 return XCOMPILED_FUNCTION (function)->flags.interactivep
|
|
|
2295 ? list2 (Qinteractive,
|
|
|
2296 compiled_function_interactive (XCOMPILED_FUNCTION (function)))
|
|
|
2297 : Qnil;
|
|
|
2298 }
|
|
|
2299
|
|
|
2300 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK
|
|
|
2301
|
|
|
2302 /* Remove the `xx' if you wish to restore this feature */
|
|
|
2303 xxDEFUN ("compiled-function-annotation", Fcompiled_function_annotation, 1, 1, 0, /*
|
|
|
2304 Return the annotation of the compiled-function object FUNCTION, or nil.
|
|
|
2305 The annotation is a piece of information indicating where this
|
|
|
2306 compiled-function object came from. Generally this will be
|
|
|
2307 a symbol naming a function; or a string naming a file, if the
|
|
|
2308 compiled-function object was not defined in a function; or nil,
|
|
|
2309 if the compiled-function object was not created as a result of
|
|
|
2310 a `load'.
|
|
|
2311 */
|
|
|
2312 (function))
|
|
|
2313 {
|
|
|
2314 CHECK_COMPILED_FUNCTION (function);
|
|
|
2315 return compiled_function_annotation (XCOMPILED_FUNCTION (function));
|
|
|
2316 }
|
|
|
2317
|
|
|
2318 #endif /* COMPILED_FUNCTION_ANNOTATION_HACK */
|
|
|
2319
|
|
|
2320 DEFUN ("compiled-function-domain", Fcompiled_function_domain, 1, 1, 0, /*
|
|
|
2321 Return the domain of the compiled-function object FUNCTION, or nil.
|
|
|
2322 This is only meaningful if I18N3 was enabled when emacs was compiled.
|
|
|
2323 */
|
|
|
2324 (function))
|
|
|
2325 {
|
|
|
2326 CHECK_COMPILED_FUNCTION (function);
|
|
|
2327 return XCOMPILED_FUNCTION (function)->flags.domainp
|
|
|
2328 ? compiled_function_domain (XCOMPILED_FUNCTION (function))
|
|
|
2329 : Qnil;
|
|
|
2330 }
|
|
|
2331
|
|
|
2332
|
|
|
2333
|
|
|
2334 DEFUN ("fetch-bytecode", Ffetch_bytecode, 1, 1, 0, /*
|
|
|
2335 If the byte code for compiled function FUNCTION is lazy-loaded, fetch it now.
|
|
|
2336 */
|
|
|
2337 (function))
|
|
|
2338 {
|
|
|
2339 Lisp_Compiled_Function *f;
|
|
|
2340 CHECK_COMPILED_FUNCTION (function);
|
|
|
2341 f = XCOMPILED_FUNCTION (function);
|
|
|
2342
|
|
|
2343 if (OPAQUEP (f->instructions) || STRINGP (f->instructions))
|
|
|
2344 return function;
|
|
|
2345
|
|
|
2346 if (CONSP (f->instructions))
|
|
|
2347 {
|
|
|
2348 Lisp_Object tem = read_doc_string (f->instructions);
|
|
|
2349 if (!CONSP (tem))
|
|
|
2350 signal_simple_error ("Invalid lazy-loaded byte code", tem);
|
|
|
2351 /* v18 or v19 bytecode file. Need to Ebolify. */
|
|
|
2352 if (f->flags.ebolified && VECTORP (XCDR (tem)))
|
|
|
2353 ebolify_bytecode_constants (XCDR (tem));
|
|
|
2354 f->instructions = XCAR (tem);
|
|
|
2355 f->constants = XCDR (tem);
|
|
|
2356 return function;
|
|
|
2357 }
|
|
|
2358 abort ();
|
|
|
2359 return Qnil; /* not reached */
|
|
|
2360 }
|
|
|
2361
|
|
|
2362 DEFUN ("optimize-compiled-function", Foptimize_compiled_function, 1, 1, 0, /*
|
|
|
2363 Convert compiled function FUNCTION into an optimized internal form.
|
|
|
2364 */
|
|
|
2365 (function))
|
|
|
2366 {
|
|
|
2367 Lisp_Compiled_Function *f;
|
|
|
2368 CHECK_COMPILED_FUNCTION (function);
|
|
|
2369 f = XCOMPILED_FUNCTION (function);
|
|
|
2370
|
|
|
2371 if (OPAQUEP (f->instructions)) /* Already optimized? */
|
|
|
2372 return Qnil;
|
|
|
2373
|
|
|
2374 optimize_compiled_function (function);
|
|
|
2375 return Qnil;
|
|
|
2376 }
|
|
|
2377
|
|
|
2378 DEFUN ("byte-code", Fbyte_code, 3, 3, 0, /*
|
|
|
2379 Function used internally in byte-compiled code.
|
|
|
2380 First argument INSTRUCTIONS is a string of byte code.
|
|
|
2381 Second argument CONSTANTS is a vector of constants.
|
|
|
2382 Third argument STACK-DEPTH is the maximum stack depth used in this function.
|
|
|
2383 If STACK-DEPTH is incorrect, Emacs may crash.
|
|
|
2384 */
|
|
|
2385 (instructions, constants, stack_depth))
|
|
|
2386 {
|
|
|
2387 /* This function can GC */
|
|
|
2388 int varbind_count;
|
|
|
2389 int program_length;
|
|
|
2390 Opbyte *program;
|
|
|
2391
|
|
|
2392 CHECK_STRING (instructions);
|
|
|
2393 CHECK_VECTOR (constants);
|
|
|
2394 CHECK_NATNUM (stack_depth);
|
|
|
2395
|
|
|
2396 /* Optimize the `instructions' string, just like when executing a
|
|
|
2397 regular compiled function, but don't save it for later since this is
|
|
|
2398 likely to only be executed once. */
|
|
|
2399 program = alloca_array (Opbyte, 1 + 2 * XSTRING_LENGTH (instructions));
|
|
|
2400 optimize_byte_code (instructions, constants, program,
|
|
|
2401 &program_length, &varbind_count);
|
|
|
2402 SPECPDL_RESERVE (varbind_count);
|
|
|
2403 return execute_optimized_program (program,
|
|
|
2404 XINT (stack_depth),
|
|
|
2405 XVECTOR_DATA (constants));
|
|
|
2406 }
|
|
|
2407
|
|
|
2408
|
|
|
2409 void
|
|
|
2410 syms_of_bytecode (void)
|
|
|
2411 {
|
|
442
|
2412 INIT_LRECORD_IMPLEMENTATION (compiled_function);
|
|
|
2413
|
|
|
2414 DEFERROR_STANDARD (Qinvalid_byte_code, Qinvalid_state);
|
|
428
|
2415 defsymbol (&Qbyte_code, "byte-code");
|
|
|
2416 defsymbol (&Qcompiled_functionp, "compiled-function-p");
|
|
|
2417
|
|
|
2418 DEFSUBR (Fbyte_code);
|
|
|
2419 DEFSUBR (Ffetch_bytecode);
|
|
|
2420 DEFSUBR (Foptimize_compiled_function);
|
|
|
2421
|
|
|
2422 DEFSUBR (Fcompiled_function_p);
|
|
|
2423 DEFSUBR (Fcompiled_function_instructions);
|
|
|
2424 DEFSUBR (Fcompiled_function_constants);
|
|
|
2425 DEFSUBR (Fcompiled_function_stack_depth);
|
|
|
2426 DEFSUBR (Fcompiled_function_arglist);
|
|
|
2427 DEFSUBR (Fcompiled_function_interactive);
|
|
|
2428 DEFSUBR (Fcompiled_function_doc_string);
|
|
|
2429 DEFSUBR (Fcompiled_function_domain);
|
|
|
2430 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK
|
|
|
2431 DEFSUBR (Fcompiled_function_annotation);
|
|
|
2432 #endif
|
|
|
2433
|
|
|
2434 #ifdef BYTE_CODE_METER
|
|
|
2435 defsymbol (&Qbyte_code_meter, "byte-code-meter");
|
|
|
2436 #endif
|
|
|
2437 }
|
|
|
2438
|
|
|
2439 void
|
|
|
2440 vars_of_bytecode (void)
|
|
|
2441 {
|
|
|
2442 #ifdef BYTE_CODE_METER
|
|
|
2443
|
|
|
2444 DEFVAR_LISP ("byte-code-meter", &Vbyte_code_meter /*
|
|
|
2445 A vector of vectors which holds a histogram of byte code usage.
|
|
|
2446 \(aref (aref byte-code-meter 0) CODE) indicates how many times the byte
|
|
|
2447 opcode CODE has been executed.
|
|
|
2448 \(aref (aref byte-code-meter CODE1) CODE2), where CODE1 is not 0,
|
|
|
2449 indicates how many times the byte opcodes CODE1 and CODE2 have been
|
|
|
2450 executed in succession.
|
|
|
2451 */ );
|
|
|
2452 DEFVAR_BOOL ("byte-metering-on", &byte_metering_on /*
|
|
|
2453 If non-nil, keep profiling information on byte code usage.
|
|
|
2454 The variable `byte-code-meter' indicates how often each byte opcode is used.
|
|
|
2455 If a symbol has a property named `byte-code-meter' whose value is an
|
|
|
2456 integer, it is incremented each time that symbol's function is called.
|
|
|
2457 */ );
|
|
|
2458
|
|
|
2459 byte_metering_on = 0;
|
|
|
2460 Vbyte_code_meter = make_vector (256, Qzero);
|
|
|
2461 {
|
|
|
2462 int i = 256;
|
|
|
2463 while (i--)
|
|
|
2464 XVECTOR_DATA (Vbyte_code_meter)[i] = make_vector (256, Qzero);
|
|
|
2465 }
|
|
|
2466 #endif /* BYTE_CODE_METER */
|
|
|
2467 }
|
