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404
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1 /* Portable data dumper for XEmacs.
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2 Copyright (C) 1999-2000 Olivier Galibert
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not in FSF. */
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22
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23 #include <config.h>
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24 #include "lisp.h"
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25 #include "dump-id.h"
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26 #include "specifier.h"
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27 #include "alloc.h"
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28 #include "elhash.h"
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29 #include "sysfile.h"
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30 #include "console-stream.h"
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31 #include "dumper.h"
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32
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33 #ifdef HAVE_MMAP
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34 #include <sys/mman.h>
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35 #endif
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36
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37 #ifndef SEPCHAR
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38 #define SEPCHAR ':'
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39 #endif
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40
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41 typedef struct
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42 {
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43 const struct lrecord_description *desc;
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44 int count;
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45 } pdump_reloc_table;
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46
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47 static char *pdump_rt_list = 0;
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48
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49 void
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50 pdump_objects_unmark (void)
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51 {
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52 int i;
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53 char *p = pdump_rt_list;
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54 if (p)
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55 for (;;)
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56 {
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57 pdump_reloc_table *rt = (pdump_reloc_table *)p;
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58 p += sizeof (pdump_reloc_table);
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59 if (rt->desc)
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60 {
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61 for (i=0; i<rt->count; i++)
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62 {
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63 struct lrecord_header *lh = * (struct lrecord_header **) p;
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64 if (! C_READONLY_RECORD_HEADER_P (lh))
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65 UNMARK_RECORD_HEADER (lh);
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66 p += sizeof (EMACS_INT);
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67 }
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68 } else
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69 break;
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70 }
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71 }
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72
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73
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74 /* The structure of the file
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75 *
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76 * 0 - header
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77 * 256 - dumped objects
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78 * stab_offset - nb_staticpro*(Lisp_Object *) from staticvec
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79 * - nb_staticpro*(relocated Lisp_Object) pointed to by staticpro
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80 * - nb_structdmp*pair(void *, adr) for pointers to structures
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81 * - lrecord_implementations_table[]
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82 * - relocation table
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83 * - wired variable address/value couples with the count preceding the list
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84 */
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85
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86
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87 #define DUMP_SIGNATURE "XEmacsDP"
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88 #define DUMP_SIGNATURE_LEN (sizeof (DUMP_SIGNATURE) - 1)
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89
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90 typedef struct
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91 {
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92 char signature[DUMP_SIGNATURE_LEN];
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93 unsigned int id;
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94 EMACS_UINT stab_offset;
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95 EMACS_UINT reloc_address;
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96 int nb_staticpro;
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97 int nb_structdmp;
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98 int nb_opaquedmp;
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99 } dump_header;
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100
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101 char *pdump_start, *pdump_end;
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102 static size_t pdump_length;
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103 void (*pdump_free) (void);
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104
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105 static const unsigned char align_table[256] =
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106 {
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107 8, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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108 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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109 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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110 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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111 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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112 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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113 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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114 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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115 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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116 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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117 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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118 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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119 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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120 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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121 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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122 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0
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123 };
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124
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125 typedef struct pdump_entry_list_elmt
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126 {
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127 struct pdump_entry_list_elmt *next;
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128 const void *obj;
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129 size_t size;
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130 int count;
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131 int is_lrecord;
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132 EMACS_INT save_offset;
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133 } pdump_entry_list_elmt;
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134
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135 typedef struct
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136 {
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137 pdump_entry_list_elmt *first;
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138 int align;
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139 int count;
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140 } pdump_entry_list;
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141
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142 typedef struct pdump_struct_list_elmt
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143 {
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144 pdump_entry_list list;
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145 const struct struct_description *sdesc;
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146 } pdump_struct_list_elmt;
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147
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148 typedef struct
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149 {
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150 pdump_struct_list_elmt *list;
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151 int count;
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152 int size;
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153 } pdump_struct_list;
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154
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155 static pdump_entry_list pdump_object_table[256];
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156 static pdump_entry_list pdump_opaque_data_list;
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157 static pdump_struct_list pdump_struct_table;
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158 static pdump_entry_list_elmt *pdump_qnil;
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159
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160 static int pdump_alert_undump_object[256];
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161
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162 static unsigned long cur_offset;
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163 static size_t max_size;
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164 static int pdump_fd;
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165 static void *pdump_buf;
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166
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167 #define PDUMP_HASHSIZE 200001
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168
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169 static pdump_entry_list_elmt **pdump_hash;
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170
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171 /* Since most pointers are eight bytes aligned, the >>3 allows for a better hash */
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172 static int
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173 pdump_make_hash (const void *obj)
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174 {
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175 return ((unsigned long)(obj)>>3) % PDUMP_HASHSIZE;
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176 }
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177
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178 static pdump_entry_list_elmt *
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179 pdump_get_entry (const void *obj)
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180 {
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181 int pos = pdump_make_hash (obj);
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182 pdump_entry_list_elmt *e;
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183
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184 assert (obj != 0);
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185
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186 while ((e = pdump_hash[pos]) != 0)
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187 {
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188 if (e->obj == obj)
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189 return e;
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190
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191 pos++;
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192 if (pos == PDUMP_HASHSIZE)
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193 pos = 0;
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194 }
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195 return 0;
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196 }
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197
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198 static void
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199 pdump_add_entry (pdump_entry_list *list, const void *obj, size_t size, int count, int is_lrecord)
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200 {
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201 pdump_entry_list_elmt *e;
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202 int align;
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203 int pos = pdump_make_hash (obj);
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204
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205 while ((e = pdump_hash[pos]) != 0)
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206 {
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207 if (e->obj == obj)
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208 return;
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209
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210 pos++;
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211 if (pos == PDUMP_HASHSIZE)
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212 pos = 0;
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213 }
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214
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215 e = xnew (pdump_entry_list_elmt);
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216
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217 e->next = list->first;
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218 e->obj = obj;
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219 e->size = size;
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220 e->count = count;
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221 e->is_lrecord = is_lrecord;
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222 list->first = e;
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223
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224 list->count += count;
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225 pdump_hash[pos] = e;
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226
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227 align = align_table[size & 255];
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228 if (align < 2 && is_lrecord)
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229 align = 2;
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230
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231 if (align < list->align)
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232 list->align = align;
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233 }
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234
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235 static pdump_entry_list *
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236 pdump_get_entry_list (const struct struct_description *sdesc)
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237 {
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238 int i;
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239 for (i=0; i<pdump_struct_table.count; i++)
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240 if (pdump_struct_table.list[i].sdesc == sdesc)
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241 return &pdump_struct_table.list[i].list;
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242
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243 if (pdump_struct_table.size <= pdump_struct_table.count)
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244 {
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245 if (pdump_struct_table.size == -1)
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246 pdump_struct_table.size = 10;
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247 else
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248 pdump_struct_table.size = pdump_struct_table.size * 2;
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249 pdump_struct_table.list = (pdump_struct_list_elmt *)
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250 xrealloc (pdump_struct_table.list,
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251 pdump_struct_table.size * sizeof (pdump_struct_list_elmt));
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252 }
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253 pdump_struct_table.list[pdump_struct_table.count].list.first = 0;
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254 pdump_struct_table.list[pdump_struct_table.count].list.align = 8;
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255 pdump_struct_table.list[pdump_struct_table.count].list.count = 0;
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256 pdump_struct_table.list[pdump_struct_table.count].sdesc = sdesc;
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257
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258 return &pdump_struct_table.list[pdump_struct_table.count++].list;
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259 }
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260
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261 static struct
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262 {
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263 struct lrecord_header *obj;
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264 int position;
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265 int offset;
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266 } backtrace[65536];
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267
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268 static int depth;
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269
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270 static void pdump_backtrace (void)
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271 {
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272 int i;
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273 stderr_out ("pdump backtrace :\n");
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274 for (i=0;i<depth;i++)
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275 {
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276 if (!backtrace[i].obj)
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277 stderr_out (" - ind. (%d, %d)\n", backtrace[i].position, backtrace[i].offset);
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278 else
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279 {
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280 stderr_out (" - %s (%d, %d)\n",
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281 LHEADER_IMPLEMENTATION (backtrace[i].obj)->name,
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282 backtrace[i].position,
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283 backtrace[i].offset);
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284 }
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285 }
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286 }
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287
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288 static void pdump_register_object (Lisp_Object obj);
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289 static void pdump_register_struct (const void *data, const struct struct_description *sdesc, int count);
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290
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291 static EMACS_INT
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292 pdump_get_indirect_count (EMACS_INT code, const struct lrecord_description *idesc, const void *idata)
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293 {
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294 EMACS_INT count;
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295 const void *irdata;
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296
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297 int line = XD_INDIRECT_VAL (code);
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298 int delta = XD_INDIRECT_DELTA (code);
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299
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300 irdata = ((char *)idata) + idesc[line].offset;
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301 switch (idesc[line].type)
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302 {
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303 case XD_SIZE_T:
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304 count = *(size_t *)irdata;
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305 break;
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306 case XD_INT:
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307 count = *(int *)irdata;
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308 break;
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309 case XD_LONG:
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310 count = *(long *)irdata;
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311 break;
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312 case XD_BYTECOUNT:
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313 count = *(Bytecount *)irdata;
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314 break;
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315 default:
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316 stderr_out ("Unsupported count type : %d (line = %d, code=%ld)\n", idesc[line].type, line, (long)code);
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317 pdump_backtrace ();
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318 abort ();
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319 }
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320 count += delta;
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321 return count;
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322 }
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323
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324 static void
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325 pdump_register_sub (const void *data, const struct lrecord_description *desc, int me)
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326 {
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327 int pos;
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328
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329 restart:
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330 for (pos = 0; desc[pos].type != XD_END; pos++)
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331 {
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332 const void *rdata = (const char *)data + desc[pos].offset;
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333
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334 backtrace[me].position = pos;
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335 backtrace[me].offset = desc[pos].offset;
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336
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337 switch (desc[pos].type)
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338 {
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339 case XD_SPECIFIER_END:
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340 pos = 0;
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341 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
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342 goto restart;
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343 case XD_SIZE_T:
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344 case XD_INT:
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345 case XD_LONG:
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346 case XD_BYTECOUNT:
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347 case XD_LO_RESET_NIL:
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348 case XD_INT_RESET:
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349 case XD_LO_LINK:
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350 break;
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351 case XD_OPAQUE_DATA_PTR:
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352 {
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353 EMACS_INT count = desc[pos].data1;
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354 if (XD_IS_INDIRECT (count))
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355 count = pdump_get_indirect_count (count, desc, data);
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356
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357 pdump_add_entry (&pdump_opaque_data_list,
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358 *(void **)rdata,
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359 count,
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360 1,
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361 0);
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362 break;
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363 }
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364 case XD_C_STRING:
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365 {
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366 const char *str = *(const char **)rdata;
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367 if (str)
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368 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1, 0);
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369 break;
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370 }
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371 case XD_DOC_STRING:
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372 {
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373 const char *str = *(const char **)rdata;
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374 if ((EMACS_INT)str > 0)
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375 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1, 0);
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376 break;
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377 }
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378 case XD_LISP_OBJECT:
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379 {
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380 const Lisp_Object *pobj = (const Lisp_Object *)rdata;
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381
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382 assert (desc[pos].data1 == 0);
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383
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384 backtrace[me].offset = (const char *)pobj - (const char *)data;
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385 pdump_register_object (*pobj);
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386 break;
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387 }
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388 case XD_LISP_OBJECT_ARRAY:
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389 {
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390 int i;
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391 EMACS_INT count = desc[pos].data1;
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392 if (XD_IS_INDIRECT (count))
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393 count = pdump_get_indirect_count (count, desc, data);
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394
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395 for (i = 0; i < count; i++)
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396 {
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397 const Lisp_Object *pobj = ((const Lisp_Object *)rdata) + i;
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398 Lisp_Object dobj = *pobj;
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399
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400 backtrace[me].offset = (const char *)pobj - (const char *)data;
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401 pdump_register_object (dobj);
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402 }
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403 break;
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404 }
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405 case XD_STRUCT_PTR:
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406 {
|
|
|
407 EMACS_INT count = desc[pos].data1;
|
|
|
408 const struct struct_description *sdesc = desc[pos].data2;
|
|
|
409 const char *dobj = *(const char **)rdata;
|
|
|
410 if (dobj)
|
|
|
411 {
|
|
|
412 if (XD_IS_INDIRECT (count))
|
|
|
413 count = pdump_get_indirect_count (count, desc, data);
|
|
|
414
|
|
|
415 pdump_register_struct (dobj, sdesc, count);
|
|
|
416 }
|
|
|
417 break;
|
|
|
418 }
|
|
|
419 default:
|
|
|
420 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
421 pdump_backtrace ();
|
|
|
422 abort ();
|
|
|
423 };
|
|
|
424 }
|
|
|
425 }
|
|
|
426
|
|
|
427 static void
|
|
|
428 pdump_register_object (Lisp_Object obj)
|
|
|
429 {
|
|
|
430 struct lrecord_header *objh;
|
|
|
431
|
|
|
432 if (!POINTER_TYPE_P (XTYPE (obj)))
|
|
|
433 return;
|
|
|
434
|
|
|
435 objh = XRECORD_LHEADER (obj);
|
|
|
436 if (!objh)
|
|
|
437 return;
|
|
|
438
|
|
|
439 if (pdump_get_entry (objh))
|
|
|
440 return;
|
|
|
441
|
|
|
442 if (LHEADER_IMPLEMENTATION (objh)->description)
|
|
|
443 {
|
|
|
444 int me = depth++;
|
|
|
445 if (me>65536)
|
|
|
446 {
|
|
|
447 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
448 abort ();
|
|
|
449 }
|
|
|
450 backtrace[me].obj = objh;
|
|
|
451 backtrace[me].position = 0;
|
|
|
452 backtrace[me].offset = 0;
|
|
|
453
|
|
|
454 pdump_add_entry (pdump_object_table + objh->type,
|
|
|
455 objh,
|
|
|
456 LHEADER_IMPLEMENTATION (objh)->static_size ?
|
|
|
457 LHEADER_IMPLEMENTATION (objh)->static_size :
|
|
|
458 LHEADER_IMPLEMENTATION (objh)->size_in_bytes_method (objh),
|
|
|
459 1,
|
|
|
460 1);
|
|
|
461 pdump_register_sub (objh,
|
|
|
462 LHEADER_IMPLEMENTATION (objh)->description,
|
|
|
463 me);
|
|
|
464 --depth;
|
|
|
465 }
|
|
|
466 else
|
|
|
467 {
|
|
|
468 pdump_alert_undump_object[objh->type]++;
|
|
|
469 stderr_out ("Undumpable object type : %s\n", LHEADER_IMPLEMENTATION (objh)->name);
|
|
|
470 pdump_backtrace ();
|
|
|
471 }
|
|
|
472 }
|
|
|
473
|
|
|
474 static void
|
|
|
475 pdump_register_struct (const void *data, const struct struct_description *sdesc, int count)
|
|
|
476 {
|
|
|
477 if (data && !pdump_get_entry (data))
|
|
|
478 {
|
|
|
479 int me = depth++;
|
|
|
480 int i;
|
|
|
481 if (me>65536)
|
|
|
482 {
|
|
|
483 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
484 abort ();
|
|
|
485 }
|
|
|
486 backtrace[me].obj = 0;
|
|
|
487 backtrace[me].position = 0;
|
|
|
488 backtrace[me].offset = 0;
|
|
|
489
|
|
|
490 pdump_add_entry (pdump_get_entry_list (sdesc),
|
|
|
491 data,
|
|
|
492 sdesc->size,
|
|
|
493 count,
|
|
|
494 0);
|
|
|
495 for (i=0; i<count; i++)
|
|
|
496 {
|
|
|
497 pdump_register_sub (((char *)data) + sdesc->size*i,
|
|
|
498 sdesc->description,
|
|
|
499 me);
|
|
|
500 }
|
|
|
501 --depth;
|
|
|
502 }
|
|
|
503 }
|
|
|
504
|
|
|
505 static void
|
|
|
506 pdump_dump_data (pdump_entry_list_elmt *elmt, const struct lrecord_description *desc)
|
|
|
507 {
|
|
|
508 size_t size = elmt->size;
|
|
|
509 int count = elmt->count;
|
|
|
510 if (desc)
|
|
|
511 {
|
|
|
512 int pos, i;
|
|
|
513 memcpy (pdump_buf, elmt->obj, size*count);
|
|
|
514
|
|
|
515 for (i=0; i<count; i++)
|
|
|
516 {
|
|
|
517 char *cur = ((char *)pdump_buf) + i*size;
|
|
|
518 restart:
|
|
|
519 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
520 {
|
|
|
521 void *rdata = cur + desc[pos].offset;
|
|
|
522 switch (desc[pos].type)
|
|
|
523 {
|
|
|
524 case XD_SPECIFIER_END:
|
|
|
525 desc = ((const Lisp_Specifier *)(elmt->obj))->methods->extra_description;
|
|
|
526 goto restart;
|
|
|
527 case XD_SIZE_T:
|
|
|
528 case XD_INT:
|
|
|
529 case XD_LONG:
|
|
|
530 case XD_BYTECOUNT:
|
|
|
531 break;
|
|
|
532 case XD_LO_RESET_NIL:
|
|
|
533 {
|
|
|
534 EMACS_INT num = desc[pos].data1;
|
|
|
535 int j;
|
|
|
536 if (XD_IS_INDIRECT (num))
|
|
|
537 num = pdump_get_indirect_count (num, desc, elmt->obj);
|
|
|
538 for (j=0; j<num; j++)
|
|
|
539 ((EMACS_INT *)rdata)[j] = pdump_qnil->save_offset;
|
|
|
540 break;
|
|
|
541 }
|
|
|
542 case XD_INT_RESET:
|
|
|
543 {
|
|
|
544 EMACS_INT val = desc[pos].data1;
|
|
|
545 if (XD_IS_INDIRECT (val))
|
|
|
546 val = pdump_get_indirect_count (val, desc, elmt->obj);
|
|
|
547 *(int *)rdata = val;
|
|
|
548 break;
|
|
|
549 }
|
|
|
550 case XD_OPAQUE_DATA_PTR:
|
|
|
551 case XD_C_STRING:
|
|
|
552 case XD_STRUCT_PTR:
|
|
|
553 {
|
|
|
554 void *ptr = *(void **)rdata;
|
|
|
555 if (ptr)
|
|
|
556 *(EMACS_INT *)rdata = pdump_get_entry (ptr)->save_offset;
|
|
|
557 break;
|
|
|
558 }
|
|
|
559 case XD_LO_LINK:
|
|
|
560 {
|
|
|
561 Lisp_Object obj = *(Lisp_Object *)rdata;
|
|
|
562 pdump_entry_list_elmt *elmt1;
|
|
|
563 for (;;)
|
|
|
564 {
|
|
|
565 elmt1 = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
566 if (elmt1)
|
|
|
567 break;
|
|
|
568 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
569 }
|
|
|
570 *(EMACS_INT *)rdata = elmt1->save_offset;
|
|
|
571 break;
|
|
|
572 }
|
|
|
573 case XD_LISP_OBJECT:
|
|
|
574 {
|
|
|
575 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
576
|
|
|
577 assert (desc[pos].data1 == 0);
|
|
|
578
|
|
|
579 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
580 *(EMACS_INT *)pobj =
|
|
|
581 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
582 break;
|
|
|
583 }
|
|
|
584 case XD_LISP_OBJECT_ARRAY:
|
|
|
585 {
|
|
|
586 EMACS_INT num = desc[pos].data1;
|
|
|
587 int j;
|
|
|
588 if (XD_IS_INDIRECT (num))
|
|
|
589 num = pdump_get_indirect_count (num, desc, elmt->obj);
|
|
|
590
|
|
|
591 for (j=0; j<num; j++)
|
|
|
592 {
|
|
|
593 Lisp_Object *pobj = ((Lisp_Object *)rdata) + j;
|
|
|
594 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
595 *(EMACS_INT *)pobj =
|
|
|
596 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
597 }
|
|
|
598 break;
|
|
|
599 }
|
|
|
600 case XD_DOC_STRING:
|
|
|
601 {
|
|
|
602 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
603 if (str > 0)
|
|
|
604 *(EMACS_INT *)rdata = pdump_get_entry ((void *)str)->save_offset;
|
|
|
605 break;
|
|
|
606 }
|
|
|
607 default:
|
|
|
608 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
609 abort ();
|
|
|
610 };
|
|
|
611 }
|
|
|
612 }
|
|
|
613 }
|
|
|
614 write (pdump_fd, desc ? pdump_buf : elmt->obj, size*count);
|
|
|
615 if (elmt->is_lrecord && ((size*count) & 3))
|
|
|
616 write (pdump_fd, "\0\0\0", 4-((size*count) & 3));
|
|
|
617 }
|
|
|
618
|
|
|
619 static void
|
|
|
620 pdump_reloc_one (void *data, EMACS_INT delta, const struct lrecord_description *desc)
|
|
|
621 {
|
|
|
622 int pos;
|
|
|
623
|
|
|
624 restart:
|
|
|
625 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
626 {
|
|
|
627 void *rdata = (char *)data + desc[pos].offset;
|
|
|
628 switch (desc[pos].type)
|
|
|
629 {
|
|
|
630 case XD_SPECIFIER_END:
|
|
|
631 pos = 0;
|
|
|
632 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
633 goto restart;
|
|
|
634 case XD_SIZE_T:
|
|
|
635 case XD_INT:
|
|
|
636 case XD_LONG:
|
|
|
637 case XD_BYTECOUNT:
|
|
|
638 case XD_INT_RESET:
|
|
|
639 break;
|
|
|
640 case XD_OPAQUE_DATA_PTR:
|
|
|
641 case XD_C_STRING:
|
|
|
642 case XD_STRUCT_PTR:
|
|
|
643 case XD_LO_LINK:
|
|
|
644 {
|
|
|
645 EMACS_INT ptr = *(EMACS_INT *)rdata;
|
|
|
646 if (ptr)
|
|
|
647 *(EMACS_INT *)rdata = ptr+delta;
|
|
|
648 break;
|
|
|
649 }
|
|
|
650 case XD_LISP_OBJECT:
|
|
|
651 {
|
|
|
652 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
653
|
|
|
654 assert (desc[pos].data1 == 0);
|
|
|
655
|
|
|
656 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
657 && ! EQ (*pobj, Qnull_pointer))
|
|
|
658 XSETOBJ (*pobj, XTYPE (*pobj), (char *) XPNTR (*pobj) + delta);
|
|
|
659
|
|
|
660 break;
|
|
|
661 }
|
|
|
662 case XD_LISP_OBJECT_ARRAY:
|
|
|
663 case XD_LO_RESET_NIL:
|
|
|
664 {
|
|
|
665 EMACS_INT num = desc[pos].data1;
|
|
|
666 int j;
|
|
|
667 if (XD_IS_INDIRECT (num))
|
|
|
668 num = pdump_get_indirect_count (num, desc, data);
|
|
|
669
|
|
|
670 for (j=0; j<num; j++)
|
|
|
671 {
|
|
|
672 Lisp_Object *pobj = (Lisp_Object *) rdata + j;
|
|
|
673
|
|
|
674 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
675 && ! EQ (*pobj, Qnull_pointer))
|
|
|
676 XSETOBJ (*pobj, XTYPE (*pobj), (char *) XPNTR (*pobj) + delta);
|
|
|
677 }
|
|
|
678 break;
|
|
|
679 }
|
|
|
680 case XD_DOC_STRING:
|
|
|
681 {
|
|
|
682 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
683 if (str > 0)
|
|
|
684 *(EMACS_INT *)rdata = str + delta;
|
|
|
685 break;
|
|
|
686 }
|
|
|
687 default:
|
|
|
688 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
689 abort ();
|
|
|
690 };
|
|
|
691 }
|
|
|
692 }
|
|
|
693
|
|
|
694 static void
|
|
|
695 pdump_allocate_offset (pdump_entry_list_elmt *elmt, const struct lrecord_description *desc)
|
|
|
696 {
|
|
|
697 size_t size = (elmt->is_lrecord ? (elmt->size + 3) & ~3 : elmt->size)*elmt->count;
|
|
|
698 elmt->save_offset = cur_offset;
|
|
|
699 if (size>max_size)
|
|
|
700 max_size = size;
|
|
|
701 cur_offset += size;
|
|
|
702 }
|
|
|
703
|
|
|
704 static void
|
|
|
705 pdump_scan_by_alignment (void (*f)(pdump_entry_list_elmt *, const struct lrecord_description *))
|
|
|
706 {
|
|
|
707 int align, i;
|
|
|
708 const struct lrecord_description *idesc;
|
|
|
709 pdump_entry_list_elmt *elmt;
|
|
|
710 for (align=8; align>=0; align--)
|
|
|
711 {
|
|
|
712 for (i=0; i<lrecord_type_count; i++)
|
|
|
713 if (pdump_object_table[i].align == align)
|
|
|
714 {
|
|
|
715 elmt = pdump_object_table[i].first;
|
|
|
716 if (!elmt)
|
|
|
717 continue;
|
|
|
718 idesc = lrecord_implementations_table[i]->description;
|
|
|
719 while (elmt)
|
|
|
720 {
|
|
|
721 f (elmt, idesc);
|
|
|
722 elmt = elmt->next;
|
|
|
723 }
|
|
|
724 }
|
|
|
725
|
|
|
726 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
727 if (pdump_struct_table.list[i].list.align == align)
|
|
|
728 {
|
|
|
729 elmt = pdump_struct_table.list[i].list.first;
|
|
|
730 idesc = pdump_struct_table.list[i].sdesc->description;
|
|
|
731 while (elmt)
|
|
|
732 {
|
|
|
733 f (elmt, idesc);
|
|
|
734 elmt = elmt->next;
|
|
|
735 }
|
|
|
736 }
|
|
|
737
|
|
|
738 elmt = pdump_opaque_data_list.first;
|
|
|
739 while (elmt)
|
|
|
740 {
|
|
|
741 if (align_table[elmt->size & 255] == align)
|
|
|
742 f (elmt, 0);
|
|
|
743 elmt = elmt->next;
|
|
|
744 }
|
|
|
745 }
|
|
|
746 }
|
|
|
747
|
|
|
748 static void
|
|
|
749 pdump_dump_staticvec (void)
|
|
|
750 {
|
|
|
751 EMACS_INT *reloc = xnew_array (EMACS_INT, staticidx);
|
|
|
752 int i;
|
|
|
753 write (pdump_fd, staticvec, staticidx*sizeof (Lisp_Object *));
|
|
|
754
|
|
|
755 for (i=0; i<staticidx; i++)
|
|
|
756 {
|
|
|
757 Lisp_Object obj = *staticvec[i];
|
|
|
758 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
759 reloc[i] = pdump_get_entry (XRECORD_LHEADER (obj))->save_offset;
|
|
|
760 else
|
|
|
761 reloc[i] = *(EMACS_INT *)(staticvec[i]);
|
|
|
762 }
|
|
|
763 write (pdump_fd, reloc, staticidx*sizeof (Lisp_Object));
|
|
|
764 free (reloc);
|
|
|
765 }
|
|
|
766
|
|
|
767 static void
|
|
|
768 pdump_dump_structvec (void)
|
|
|
769 {
|
|
|
770 int i;
|
|
|
771 for (i=0; i<dumpstructidx; i++)
|
|
|
772 {
|
|
|
773 EMACS_INT adr;
|
|
|
774 write (pdump_fd, &(dumpstructvec[i].data), sizeof (void *));
|
|
|
775 adr = pdump_get_entry (*(void **)(dumpstructvec[i].data))->save_offset;
|
|
|
776 write (pdump_fd, &adr, sizeof (adr));
|
|
|
777 }
|
|
|
778 }
|
|
|
779
|
|
|
780 static void
|
|
|
781 pdump_dump_opaquevec (void)
|
|
|
782 {
|
|
|
783 int i;
|
|
|
784 for (i=0; i<dumpopaqueidx; i++)
|
|
|
785 {
|
|
|
786 write (pdump_fd, &(dumpopaquevec[i]), sizeof (dumpopaquevec[i]));
|
|
|
787 write (pdump_fd, dumpopaquevec[i].data, dumpopaquevec[i].size);
|
|
|
788 }
|
|
|
789 }
|
|
|
790
|
|
|
791 static void
|
|
|
792 pdump_dump_itable (void)
|
|
|
793 {
|
|
|
794 write (pdump_fd, lrecord_implementations_table, lrecord_type_count*sizeof (lrecord_implementations_table[0]));
|
|
|
795 }
|
|
|
796
|
|
|
797 static void
|
|
|
798 pdump_dump_rtables (void)
|
|
|
799 {
|
|
|
800 int i, j;
|
|
|
801 pdump_entry_list_elmt *elmt;
|
|
|
802 pdump_reloc_table rt;
|
|
|
803
|
|
|
804 for (i=0; i<lrecord_type_count; i++)
|
|
|
805 {
|
|
|
806 elmt = pdump_object_table[i].first;
|
|
|
807 if (!elmt)
|
|
|
808 continue;
|
|
|
809 rt.desc = lrecord_implementations_table[i]->description;
|
|
|
810 rt.count = pdump_object_table[i].count;
|
|
|
811 write (pdump_fd, &rt, sizeof (rt));
|
|
|
812 while (elmt)
|
|
|
813 {
|
|
|
814 EMACS_INT rdata = pdump_get_entry (elmt->obj)->save_offset;
|
|
|
815 write (pdump_fd, &rdata, sizeof (rdata));
|
|
|
816 elmt = elmt->next;
|
|
|
817 }
|
|
|
818 }
|
|
|
819
|
|
|
820 rt.desc = 0;
|
|
|
821 rt.count = 0;
|
|
|
822 write (pdump_fd, &rt, sizeof (rt));
|
|
|
823
|
|
|
824 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
825 {
|
|
|
826 elmt = pdump_struct_table.list[i].list.first;
|
|
|
827 rt.desc = pdump_struct_table.list[i].sdesc->description;
|
|
|
828 rt.count = pdump_struct_table.list[i].list.count;
|
|
|
829 write (pdump_fd, &rt, sizeof (rt));
|
|
|
830 while (elmt)
|
|
|
831 {
|
|
|
832 EMACS_INT rdata = pdump_get_entry (elmt->obj)->save_offset;
|
|
|
833 for (j=0; j<elmt->count; j++)
|
|
|
834 {
|
|
|
835 write (pdump_fd, &rdata, sizeof (rdata));
|
|
|
836 rdata += elmt->size;
|
|
|
837 }
|
|
|
838 elmt = elmt->next;
|
|
|
839 }
|
|
|
840 }
|
|
|
841 rt.desc = 0;
|
|
|
842 rt.count = 0;
|
|
|
843 write (pdump_fd, &rt, sizeof (rt));
|
|
|
844 }
|
|
|
845
|
|
|
846 static void
|
|
|
847 pdump_dump_wired (void)
|
|
|
848 {
|
|
|
849 EMACS_INT count = pdump_wireidx + pdump_wireidx_list;
|
|
|
850 int i;
|
|
|
851
|
|
|
852 write (pdump_fd, &count, sizeof (count));
|
|
|
853
|
|
|
854 for (i=0; i<pdump_wireidx; i++)
|
|
|
855 {
|
|
|
856 EMACS_INT obj = pdump_get_entry (XRECORD_LHEADER (*(pdump_wirevec[i])))->save_offset;
|
|
|
857 write (pdump_fd, &pdump_wirevec[i], sizeof (pdump_wirevec[i]));
|
|
|
858 write (pdump_fd, &obj, sizeof (obj));
|
|
|
859 }
|
|
|
860
|
|
|
861 for (i=0; i<pdump_wireidx_list; i++)
|
|
|
862 {
|
|
|
863 Lisp_Object obj = *(pdump_wirevec_list[i]);
|
|
|
864 pdump_entry_list_elmt *elmt;
|
|
|
865 EMACS_INT res;
|
|
|
866
|
|
|
867 for (;;)
|
|
|
868 {
|
|
|
869 const struct lrecord_description *desc;
|
|
|
870 int pos;
|
|
|
871 elmt = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
872 if (elmt)
|
|
|
873 break;
|
|
|
874 desc = XRECORD_LHEADER_IMPLEMENTATION (obj)->description;
|
|
|
875 for (pos = 0; desc[pos].type != XD_LO_LINK; pos++)
|
|
|
876 assert (desc[pos].type != XD_END);
|
|
|
877
|
|
|
878 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
879 }
|
|
|
880 res = elmt->save_offset;
|
|
|
881
|
|
|
882 write (pdump_fd, &pdump_wirevec_list[i], sizeof (pdump_wirevec_list[i]));
|
|
|
883 write (pdump_fd, &res, sizeof (res));
|
|
|
884 }
|
|
|
885 }
|
|
|
886
|
|
|
887 void
|
|
|
888 pdump (void)
|
|
|
889 {
|
|
|
890 int i;
|
|
|
891 Lisp_Object t_console, t_device, t_frame;
|
|
|
892 int none;
|
|
|
893 dump_header hd;
|
|
|
894
|
|
|
895 /* These appear in a DEFVAR_LISP, which does a staticpro() */
|
|
|
896 t_console = Vterminal_console;
|
|
|
897 t_frame = Vterminal_frame;
|
|
|
898 t_device = Vterminal_device;
|
|
|
899
|
|
|
900 Vterminal_console = Qnil;
|
|
|
901 Vterminal_frame = Qnil;
|
|
|
902 Vterminal_device = Qnil;
|
|
|
903
|
|
|
904 pdump_hash = xnew_array_and_zero (pdump_entry_list_elmt *, PDUMP_HASHSIZE);
|
|
|
905
|
|
|
906 for (i=0; i<lrecord_type_count; i++)
|
|
|
907 {
|
|
|
908 pdump_object_table[i].first = 0;
|
|
|
909 pdump_object_table[i].align = 8;
|
|
|
910 pdump_object_table[i].count = 0;
|
|
|
911 pdump_alert_undump_object[i] = 0;
|
|
|
912 }
|
|
|
913 pdump_struct_table.count = 0;
|
|
|
914 pdump_struct_table.size = -1;
|
|
|
915
|
|
|
916 pdump_opaque_data_list.first = 0;
|
|
|
917 pdump_opaque_data_list.align = 8;
|
|
|
918 pdump_opaque_data_list.count = 0;
|
|
|
919 depth = 0;
|
|
|
920
|
|
|
921 for (i=0; i<staticidx; i++)
|
|
|
922 pdump_register_object (*staticvec[i]);
|
|
|
923 for (i=0; i<pdump_wireidx; i++)
|
|
|
924 pdump_register_object (*pdump_wirevec[i]);
|
|
|
925
|
|
|
926 none = 1;
|
|
|
927 for (i=0; i<lrecord_type_count; i++)
|
|
|
928 if (pdump_alert_undump_object[i])
|
|
|
929 {
|
|
|
930 if (none)
|
|
|
931 printf ("Undumpable types list :\n");
|
|
|
932 none = 0;
|
|
|
933 printf (" - %s (%d)\n", lrecord_implementations_table[i]->name, pdump_alert_undump_object[i]);
|
|
|
934 }
|
|
|
935 if (!none)
|
|
|
936 return;
|
|
|
937
|
|
|
938 for (i=0; i<dumpstructidx; i++)
|
|
|
939 pdump_register_struct (*(void **)(dumpstructvec[i].data), dumpstructvec[i].desc, 1);
|
|
|
940
|
|
|
941 memcpy (hd.signature, DUMP_SIGNATURE, DUMP_SIGNATURE_LEN);
|
|
|
942 hd.id = dump_id;
|
|
|
943 hd.reloc_address = 0;
|
|
|
944 hd.nb_staticpro = staticidx;
|
|
|
945 hd.nb_structdmp = dumpstructidx;
|
|
|
946 hd.nb_opaquedmp = dumpopaqueidx;
|
|
|
947
|
|
|
948 cur_offset = 256;
|
|
|
949 max_size = 0;
|
|
|
950
|
|
|
951 pdump_scan_by_alignment (pdump_allocate_offset);
|
|
|
952 pdump_qnil = pdump_get_entry (XRECORD_LHEADER (Qnil));
|
|
|
953
|
|
|
954 pdump_buf = xmalloc (max_size);
|
|
|
955 /* Avoid use of the `open' macro. We want the real function. */
|
|
|
956 #undef open
|
|
|
957 pdump_fd = open (EMACS_PROGNAME ".dmp",
|
|
|
958 O_WRONLY | O_CREAT | O_TRUNC | OPEN_BINARY, 0666);
|
|
|
959 hd.stab_offset = (cur_offset + 3) & ~3;
|
|
|
960
|
|
|
961 write (pdump_fd, &hd, sizeof (hd));
|
|
|
962 lseek (pdump_fd, 256, SEEK_SET);
|
|
|
963
|
|
|
964 pdump_scan_by_alignment (pdump_dump_data);
|
|
|
965
|
|
|
966 lseek (pdump_fd, hd.stab_offset, SEEK_SET);
|
|
|
967
|
|
|
968 pdump_dump_staticvec ();
|
|
|
969 pdump_dump_structvec ();
|
|
|
970 pdump_dump_opaquevec ();
|
|
|
971 pdump_dump_itable ();
|
|
|
972 pdump_dump_rtables ();
|
|
|
973 pdump_dump_wired ();
|
|
|
974
|
|
|
975 close (pdump_fd);
|
|
|
976 free (pdump_buf);
|
|
|
977
|
|
|
978 free (pdump_hash);
|
|
|
979
|
|
|
980 Vterminal_console = t_console;
|
|
|
981 Vterminal_frame = t_frame;
|
|
|
982 Vterminal_device = t_device;
|
|
|
983 }
|
|
|
984
|
|
|
985 static int pdump_load_check (void)
|
|
|
986 {
|
|
|
987 return (!memcmp (((dump_header *)pdump_start)->signature, DUMP_SIGNATURE, DUMP_SIGNATURE_LEN)
|
|
|
988 && ((dump_header *)pdump_start)->id == dump_id);
|
|
|
989 }
|
|
|
990
|
|
|
991 static int pdump_load_finish (void)
|
|
|
992 {
|
|
|
993 int i;
|
|
|
994 char *p;
|
|
|
995 EMACS_INT delta;
|
|
|
996 EMACS_INT count;
|
|
|
997
|
|
|
998 pdump_end = pdump_start + pdump_length;
|
|
|
999
|
|
|
1000 #define PDUMP_READ(p, type) (p = (char*) (((type *) p) + 1), *((type *) p - 1))
|
|
|
1001
|
|
|
1002 staticidx = ((dump_header *)(pdump_start))->nb_staticpro;
|
|
|
1003 delta = ((EMACS_INT)pdump_start) - ((dump_header *)pdump_start)->reloc_address;
|
|
|
1004 p = pdump_start + ((dump_header *)pdump_start)->stab_offset;
|
|
|
1005
|
|
|
1006 /* Put back the staticvec in place */
|
|
|
1007 memcpy (staticvec, p, staticidx*sizeof (Lisp_Object *));
|
|
|
1008 p += staticidx*sizeof (Lisp_Object *);
|
|
|
1009 for (i=0; i<staticidx; i++)
|
|
|
1010 {
|
|
|
1011 Lisp_Object obj = PDUMP_READ (p, Lisp_Object);
|
|
|
1012 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
1013 XSETOBJ (obj, XTYPE (obj), (char *) XPNTR (obj) + delta);
|
|
|
1014 *staticvec[i] = obj;
|
|
|
1015 }
|
|
|
1016
|
|
|
1017 /* Put back the dumpstructs */
|
|
|
1018 for (i=0; i<((dump_header *)pdump_start)->nb_structdmp; i++)
|
|
|
1019 {
|
|
|
1020 void **adr = PDUMP_READ (p, void **);
|
|
|
1021 *adr = (void *) (PDUMP_READ (p, char *) + delta);
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 /* Put back the opaques */
|
|
|
1025 for (i=0; i<((dump_header *)pdump_start)->nb_opaquedmp; i++)
|
|
|
1026 {
|
|
|
1027 struct pdump_dumpopaqueinfo di = PDUMP_READ (p, struct pdump_dumpopaqueinfo);
|
|
|
1028 memcpy (di.data, p, di.size);
|
|
|
1029 p += di.size;
|
|
|
1030 }
|
|
|
1031
|
|
|
1032 /* Put back the lrecord_implementations_table */
|
|
|
1033 /* The (void *) cast is there to make Ben happy. */
|
|
|
1034 memcpy ((void *) lrecord_implementations_table, p, lrecord_type_count*sizeof (lrecord_implementations_table[0]));
|
|
|
1035 p += lrecord_type_count*sizeof (lrecord_implementations_table[0]);
|
|
|
1036
|
|
|
1037 /* Reinitialize lrecord_markers from lrecord_implementations_table */
|
|
|
1038 for (i=0; i < lrecord_type_count; i++)
|
|
|
1039 if (lrecord_implementations_table[i])
|
|
|
1040 lrecord_markers[i] = lrecord_implementations_table[i]->marker;
|
|
|
1041
|
|
|
1042 /* Do the relocations */
|
|
|
1043 pdump_rt_list = p;
|
|
|
1044 count = 2;
|
|
|
1045 for (;;)
|
|
|
1046 {
|
|
|
1047 pdump_reloc_table rt = PDUMP_READ (p, pdump_reloc_table);
|
|
|
1048 if (rt.desc)
|
|
|
1049 {
|
|
|
1050 for (i=0; i < rt.count; i++)
|
|
|
1051 {
|
|
|
1052 char *adr = delta + *(char **)p;
|
|
|
1053 *(char **)p = adr;
|
|
|
1054 pdump_reloc_one (adr, delta, rt.desc);
|
|
|
1055 p += sizeof (char *);
|
|
|
1056 }
|
|
|
1057 } else
|
|
|
1058 if (!(--count))
|
|
|
1059 break;
|
|
|
1060 }
|
|
|
1061
|
|
|
1062 /* Put the pdump_wire variables in place */
|
|
|
1063 count = PDUMP_READ (p, EMACS_INT);
|
|
|
1064
|
|
|
1065 for (i=0; i<count; i++)
|
|
|
1066 {
|
|
|
1067 Lisp_Object *var = PDUMP_READ (p, Lisp_Object *);
|
|
|
1068 Lisp_Object obj = PDUMP_READ (p, Lisp_Object);
|
|
|
1069
|
|
|
1070 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
1071 XSETOBJ (obj, XTYPE (obj), (char *) XPNTR (obj) + delta);
|
|
|
1072
|
|
|
1073 *var = obj;
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 /* Final cleanups */
|
|
|
1077 /* reorganize hash tables */
|
|
|
1078 p = pdump_rt_list;
|
|
|
1079 for (;;)
|
|
|
1080 {
|
|
|
1081 pdump_reloc_table rt = PDUMP_READ (p, pdump_reloc_table);
|
|
|
1082 if (!rt.desc)
|
|
|
1083 break;
|
|
|
1084 if (rt.desc == hash_table_description)
|
|
|
1085 {
|
|
|
1086 for (i=0; i < rt.count; i++)
|
|
|
1087 pdump_reorganize_hash_table (PDUMP_READ (p, Lisp_Object));
|
|
|
1088 break;
|
|
|
1089 } else
|
|
|
1090 p += sizeof (Lisp_Object) * rt.count;
|
|
|
1091 }
|
|
|
1092
|
|
|
1093 /* Put back noninteractive1 to its real value */
|
|
|
1094 noninteractive1 = noninteractive;
|
|
|
1095
|
|
|
1096 return 1;
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 #ifdef WINDOWSNT
|
|
|
1100 static void pdump_file_unmap(void)
|
|
|
1101 {
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 static int pdump_file_get(const char *path)
|
|
|
1105 {
|
|
|
1106 HANDLE hFile;
|
|
|
1107 HANDLE hMap;
|
|
|
1108
|
|
|
1109 hFile = CreateFile (path,
|
|
|
1110 GENERIC_READ + GENERIC_WRITE, /* Required for copy on write */
|
|
|
1111 0, /* Not shared */
|
|
|
1112 NULL, /* Not inheritable */
|
|
|
1113 OPEN_EXISTING,
|
|
|
1114 FILE_ATTRIBUTE_NORMAL,
|
|
|
1115 NULL); /* No template file */
|
|
|
1116 if (hFile == INVALID_HANDLE_VALUE)
|
|
|
1117 return 0;
|
|
|
1118
|
|
|
1119 pdump_length = GetFileSize (hFile, NULL);
|
|
|
1120 hMap = CreateFileMapping (hFile,
|
|
|
1121 NULL, /* No security attributes */
|
|
|
1122 PAGE_WRITECOPY, /* Copy on write */
|
|
|
1123 0, /* Max size, high half */
|
|
|
1124 0, /* Max size, low half */
|
|
|
1125 NULL); /* Unnamed */
|
|
|
1126 if (hMap == INVALID_HANDLE_VALUE)
|
|
|
1127 return 0;
|
|
|
1128
|
|
|
1129 pdump_start = MapViewOfFile (hMap,
|
|
|
1130 FILE_MAP_COPY, /* Copy on write */
|
|
|
1131 0, /* Start at zero */
|
|
|
1132 0,
|
|
|
1133 0); /* Map all of it */
|
|
|
1134 pdump_free = pdump_file_unmap;
|
|
|
1135 return 1;
|
|
|
1136 }
|
|
|
1137
|
|
|
1138 static void pdump_resource_free (void)
|
|
|
1139 static int pdump_resource_get (void)
|
|
|
1140 {
|
|
|
1141 HRSRC hRes; /* Handle to dump resource */
|
|
|
1142 HRSRC hResLoad; /* Handle to loaded dump resource */
|
|
|
1143
|
|
|
1144 /* See Q126630 which describes how Windows NT and 95 trap writes to
|
|
|
1145 resource sections and duplicate the page to allow the write to proceed.
|
|
|
1146 It also describes how to make the resource section read/write (and hence
|
|
|
1147 private to each process). Doing this avoids the exceptions and related
|
|
|
1148 overhead, but causes the resource section to be private to each process
|
|
|
1149 that is running XEmacs. Since the resource section contains little
|
|
|
1150 other than the dumped data, which should be private to each process, we
|
|
|
1151 make the whole resource section read/write so we don't have to copy it. */
|
|
|
1152
|
|
|
1153 hRes = FindResource (NULL, MAKEINTRESOURCE(101), "DUMP");
|
|
|
1154 if (hRes == NULL)
|
|
|
1155 return 0;
|
|
|
1156
|
|
|
1157 /* Found it, use the data in the resource */
|
|
|
1158 hResLoad = LoadResource (NULL, hRes);
|
|
|
1159 if (hResLoad == NULL)
|
|
|
1160 return 0;
|
|
|
1161
|
|
|
1162 pdump_start = LockResource (hResLoad);
|
|
|
1163 if (pdump_start == NULL)
|
|
|
1164 return 0;
|
|
|
1165
|
|
|
1166 pdump_free = pdump_resource_free;
|
|
|
1167 pdump_length = SizeofResource (NULL, hRes);
|
|
|
1168 if (pdump_length <= sizeof(dump_header))
|
|
|
1169 {
|
|
|
1170 pdump_start = 0;
|
|
|
1171 return 0;
|
|
|
1172 }
|
|
|
1173
|
|
|
1174 return 1;
|
|
|
1175 }
|
|
|
1176
|
|
|
1177 #else /* !WINDOWSNT */
|
|
|
1178
|
|
|
1179 static void *pdump_mallocadr;
|
|
|
1180
|
|
|
1181 static void pdump_file_free(void)
|
|
|
1182 {
|
|
|
1183 xfree (pdump_mallocadr);
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 #ifdef HAVE_MMAP
|
|
|
1187 static void pdump_file_unmap(void)
|
|
|
1188 {
|
|
|
1189 munmap (pdump_start, pdump_length);
|
|
|
1190 }
|
|
|
1191 #endif
|
|
|
1192
|
|
|
1193 static int pdump_file_get(const char *path)
|
|
|
1194 {
|
|
|
1195 int fd = open (path, O_RDONLY | OPEN_BINARY);
|
|
|
1196 if (fd<0)
|
|
|
1197 return 0;
|
|
|
1198
|
|
|
1199 pdump_length = lseek (fd, 0, SEEK_END);
|
|
|
1200 if (pdump_length < sizeof (dump_header))
|
|
|
1201 {
|
|
|
1202 close (fd);
|
|
|
1203 return 0;
|
|
|
1204 }
|
|
|
1205
|
|
|
1206 lseek (fd, 0, SEEK_SET);
|
|
|
1207
|
|
|
1208 #ifdef HAVE_MMAP
|
|
|
1209 pdump_start = (char *) mmap (0, pdump_length, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
|
|
|
1210 if (pdump_start != MAP_FAILED)
|
|
|
1211 {
|
|
|
1212 pdump_free = pdump_file_unmap;
|
|
|
1213 close (fd);
|
|
|
1214 return 1;
|
|
|
1215 }
|
|
|
1216 #endif
|
|
|
1217
|
|
|
1218 pdump_mallocadr = xmalloc(pdump_length+255);
|
|
|
1219 pdump_free = pdump_file_free;
|
|
|
1220 pdump_start = (char *)((255 + (unsigned long)pdump_mallocadr) & ~255);
|
|
|
1221 read (pdump_fd, pdump_start, pdump_length);
|
|
|
1222
|
|
|
1223 close (pdump_fd);
|
|
|
1224 return 1;
|
|
|
1225 }
|
|
|
1226 #endif /* !WINDOWSNT */
|
|
|
1227
|
|
|
1228
|
|
|
1229 static int pdump_file_try(char *exe_path)
|
|
|
1230 {
|
|
|
1231 char *w;
|
|
|
1232
|
|
|
1233 w = exe_path + strlen(exe_path);
|
|
|
1234 do
|
|
|
1235 {
|
|
|
1236 sprintf (w, "-%s-%08x.dmp", EMACS_VERSION, dump_id);
|
|
|
1237 if (pdump_file_get (exe_path))
|
|
|
1238 {
|
|
|
1239 if (pdump_load_check ())
|
|
|
1240 return 1;
|
|
|
1241 pdump_free();
|
|
|
1242 }
|
|
|
1243
|
|
|
1244 sprintf (w, "-%08x.dmp", dump_id);
|
|
|
1245 if (pdump_file_get (exe_path))
|
|
|
1246 {
|
|
|
1247 if (pdump_load_check ())
|
|
|
1248 return 1;
|
|
|
1249 pdump_free();
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 sprintf (w, ".dmp");
|
|
|
1253 if (pdump_file_get (exe_path))
|
|
|
1254 {
|
|
|
1255 if (pdump_load_check ())
|
|
|
1256 return 1;
|
|
|
1257 pdump_free();
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 do
|
|
|
1261 w--;
|
|
|
1262 while (w>exe_path && !IS_DIRECTORY_SEP (*w) && (*w != '-') && (*w != '.'));
|
|
|
1263 }
|
|
|
1264 while (w>exe_path && !IS_DIRECTORY_SEP (*w));
|
|
|
1265 return 0;
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 int pdump_load(const char *argv0)
|
|
|
1269 {
|
|
|
1270 char exe_path[PATH_MAX];
|
|
|
1271 char *w;
|
|
|
1272 #ifdef WINDOWSNT
|
|
|
1273 GetModuleFileName (NULL, exe_name, PATH_MAX);
|
|
|
1274 #else /* !WINDOWSNT */
|
|
|
1275 const char *dir, *p;
|
|
|
1276
|
|
|
1277 dir = argv0;
|
|
|
1278 if (dir[0] == '-')
|
|
|
1279 {
|
|
|
1280 /* XEmacs as a login shell, oh goody! */
|
|
|
1281 dir = getenv("SHELL");
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 p = dir + strlen(dir);
|
|
|
1285 while (p != dir && !IS_ANY_SEP (p[-1])) p--;
|
|
|
1286
|
|
|
1287 if (p != dir)
|
|
|
1288 {
|
|
|
1289 /* invocation-name includes a directory component -- presumably it
|
|
|
1290 is relative to cwd, not $PATH */
|
|
|
1291 strcpy (exe_path, dir);
|
|
|
1292 }
|
|
|
1293 else
|
|
|
1294 {
|
|
|
1295 const char *path = getenv ("PATH");
|
|
|
1296 const char *name = p;
|
|
|
1297 for (;;)
|
|
|
1298 {
|
|
|
1299 p = path;
|
|
|
1300 while (*p && *p != SEPCHAR)
|
|
|
1301 p++;
|
|
|
1302 if (p == path)
|
|
|
1303 {
|
|
|
1304 exe_path[0] = '.';
|
|
|
1305 w = exe_path + 1;
|
|
|
1306 }
|
|
|
1307 else
|
|
|
1308 {
|
|
|
1309 memcpy (exe_path, path, p - path);
|
|
|
1310 w = exe_path + (p - path);
|
|
|
1311 }
|
|
|
1312 if (!IS_DIRECTORY_SEP (w[-1]))
|
|
|
1313 {
|
|
|
1314 *w++ = '/';
|
|
|
1315 }
|
|
|
1316 strcpy(w, name);
|
|
|
1317
|
|
|
1318 /* ### #$%$#^$^@%$^#%@$ ! */
|
|
|
1319 #ifdef access
|
|
|
1320 #undef access
|
|
|
1321 #endif
|
|
|
1322
|
|
|
1323 if (!access (exe_path, X_OK))
|
|
|
1324 break;
|
|
|
1325 if (!*p)
|
|
|
1326 {
|
|
|
1327 /* Oh well, let's have some kind of default */
|
|
|
1328 sprintf (exe_path, "./%s", name);
|
|
|
1329 break;
|
|
|
1330 }
|
|
|
1331 path = p+1;
|
|
|
1332 }
|
|
|
1333 }
|
|
|
1334 #endif /* WINDOWSNT */
|
|
|
1335
|
|
|
1336 if (pdump_file_try (exe_path))
|
|
|
1337 {
|
|
|
1338 pdump_load_finish ();
|
|
|
1339 return 1;
|
|
|
1340 }
|
|
|
1341
|
|
|
1342 #ifdef WINDOWSNT
|
|
|
1343 if (pdump_resource_get ())
|
|
|
1344 {
|
|
|
1345 if (pdump_load_check ())
|
|
|
1346 {
|
|
|
1347 pdump_load_finish ();
|
|
|
1348 return 1;
|
|
|
1349 }
|
|
|
1350 pdump_free ();
|
|
|
1351 }
|
|
|
1352 #endif
|
|
|
1353
|
|
|
1354 return 0;
|
|
|
1355 }
|
