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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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406
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33 #ifdef WINDOWSNT
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34 #define WINDOWS_LEAN_AND_MEAN
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35 #include <windows.h>
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36 #define PATH_MAX MAXPATHLEN
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37 #else
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404
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38 #ifdef HAVE_MMAP
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39 #include <sys/mman.h>
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40 #endif
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406
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41 #endif
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404
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42
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43 #ifndef SEPCHAR
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44 #define SEPCHAR ':'
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45 #endif
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46
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47 typedef struct
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48 {
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49 const struct lrecord_description *desc;
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50 int count;
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51 } pdump_reloc_table;
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52
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53 static char *pdump_rt_list = 0;
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54
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55 void
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56 pdump_objects_unmark (void)
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57 {
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58 int i;
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59 char *p = pdump_rt_list;
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60 if (p)
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61 for (;;)
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62 {
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63 pdump_reloc_table *rt = (pdump_reloc_table *)p;
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64 p += sizeof (pdump_reloc_table);
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65 if (rt->desc)
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66 {
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67 for (i=0; i<rt->count; i++)
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68 {
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69 struct lrecord_header *lh = * (struct lrecord_header **) p;
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70 if (! C_READONLY_RECORD_HEADER_P (lh))
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71 UNMARK_RECORD_HEADER (lh);
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72 p += sizeof (EMACS_INT);
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73 }
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74 } else
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75 break;
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76 }
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77 }
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78
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79
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80 /* The structure of the file
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81 *
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82 * 0 - header
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83 * 256 - dumped objects
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84 * stab_offset - nb_staticpro*(Lisp_Object *) from staticvec
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85 * - nb_staticpro*(relocated Lisp_Object) pointed to by staticpro
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86 * - nb_structdmp*pair(void *, adr) for pointers to structures
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87 * - lrecord_implementations_table[]
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88 * - relocation table
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89 * - wired variable address/value couples with the count preceding the list
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90 */
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91
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92
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93 #define DUMP_SIGNATURE "XEmacsDP"
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94 #define DUMP_SIGNATURE_LEN (sizeof (DUMP_SIGNATURE) - 1)
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95
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96 typedef struct
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97 {
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98 char signature[DUMP_SIGNATURE_LEN];
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99 unsigned int id;
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100 EMACS_UINT stab_offset;
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101 EMACS_UINT reloc_address;
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102 int nb_staticpro;
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103 int nb_structdmp;
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104 int nb_opaquedmp;
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105 } dump_header;
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106
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107 char *pdump_start, *pdump_end;
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108 static size_t pdump_length;
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406
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109
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110 #ifdef WINDOWSNT
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111 // Handle for the dump file
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112 HANDLE pdump_hFile = INVALID_HANDLE_VALUE;
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113 // Handle for the file mapping object for the dump file
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114 HANDLE pdump_hMap = INVALID_HANDLE_VALUE;
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115 #endif
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116
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404
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117 void (*pdump_free) (void);
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118
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119 static const unsigned char align_table[256] =
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120 {
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121 8, 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 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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124 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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125 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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126 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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127 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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128 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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129 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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130 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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131 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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132 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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133 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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134 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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135 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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136 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0
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137 };
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138
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139 typedef struct pdump_entry_list_elmt
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140 {
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141 struct pdump_entry_list_elmt *next;
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142 const void *obj;
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143 size_t size;
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144 int count;
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145 int is_lrecord;
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146 EMACS_INT save_offset;
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147 } pdump_entry_list_elmt;
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148
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149 typedef struct
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150 {
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151 pdump_entry_list_elmt *first;
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152 int align;
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153 int count;
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154 } pdump_entry_list;
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155
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156 typedef struct pdump_struct_list_elmt
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157 {
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158 pdump_entry_list list;
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159 const struct struct_description *sdesc;
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160 } pdump_struct_list_elmt;
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161
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162 typedef struct
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163 {
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164 pdump_struct_list_elmt *list;
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165 int count;
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166 int size;
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167 } pdump_struct_list;
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168
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169 static pdump_entry_list pdump_object_table[256];
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170 static pdump_entry_list pdump_opaque_data_list;
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171 static pdump_struct_list pdump_struct_table;
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172 static pdump_entry_list_elmt *pdump_qnil;
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173
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174 static int pdump_alert_undump_object[256];
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175
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176 static unsigned long cur_offset;
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177 static size_t max_size;
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178 static int pdump_fd;
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179 static void *pdump_buf;
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180
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181 #define PDUMP_HASHSIZE 200001
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182
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183 static pdump_entry_list_elmt **pdump_hash;
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184
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185 /* Since most pointers are eight bytes aligned, the >>3 allows for a better hash */
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186 static int
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187 pdump_make_hash (const void *obj)
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188 {
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189 return ((unsigned long)(obj)>>3) % PDUMP_HASHSIZE;
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190 }
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191
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192 static pdump_entry_list_elmt *
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193 pdump_get_entry (const void *obj)
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194 {
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195 int pos = pdump_make_hash (obj);
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196 pdump_entry_list_elmt *e;
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197
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198 assert (obj != 0);
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199
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200 while ((e = pdump_hash[pos]) != 0)
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201 {
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202 if (e->obj == obj)
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203 return e;
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204
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205 pos++;
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206 if (pos == PDUMP_HASHSIZE)
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207 pos = 0;
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208 }
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209 return 0;
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210 }
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211
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212 static void
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213 pdump_add_entry (pdump_entry_list *list, const void *obj, size_t size, int count, int is_lrecord)
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214 {
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215 pdump_entry_list_elmt *e;
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216 int align;
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217 int pos = pdump_make_hash (obj);
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218
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219 while ((e = pdump_hash[pos]) != 0)
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220 {
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221 if (e->obj == obj)
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222 return;
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223
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224 pos++;
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225 if (pos == PDUMP_HASHSIZE)
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226 pos = 0;
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227 }
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228
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229 e = xnew (pdump_entry_list_elmt);
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230
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231 e->next = list->first;
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232 e->obj = obj;
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233 e->size = size;
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234 e->count = count;
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235 e->is_lrecord = is_lrecord;
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236 list->first = e;
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237
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238 list->count += count;
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239 pdump_hash[pos] = e;
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240
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241 align = align_table[size & 255];
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242 if (align < 2 && is_lrecord)
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243 align = 2;
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244
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245 if (align < list->align)
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246 list->align = align;
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247 }
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248
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249 static pdump_entry_list *
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250 pdump_get_entry_list (const struct struct_description *sdesc)
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251 {
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252 int i;
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253 for (i=0; i<pdump_struct_table.count; i++)
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254 if (pdump_struct_table.list[i].sdesc == sdesc)
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255 return &pdump_struct_table.list[i].list;
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256
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257 if (pdump_struct_table.size <= pdump_struct_table.count)
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258 {
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259 if (pdump_struct_table.size == -1)
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260 pdump_struct_table.size = 10;
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261 else
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262 pdump_struct_table.size = pdump_struct_table.size * 2;
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263 pdump_struct_table.list = (pdump_struct_list_elmt *)
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264 xrealloc (pdump_struct_table.list,
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265 pdump_struct_table.size * sizeof (pdump_struct_list_elmt));
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266 }
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267 pdump_struct_table.list[pdump_struct_table.count].list.first = 0;
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268 pdump_struct_table.list[pdump_struct_table.count].list.align = 8;
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269 pdump_struct_table.list[pdump_struct_table.count].list.count = 0;
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270 pdump_struct_table.list[pdump_struct_table.count].sdesc = sdesc;
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271
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272 return &pdump_struct_table.list[pdump_struct_table.count++].list;
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273 }
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274
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275 static struct
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276 {
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277 struct lrecord_header *obj;
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278 int position;
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279 int offset;
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280 } backtrace[65536];
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281
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282 static int depth;
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283
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284 static void pdump_backtrace (void)
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285 {
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286 int i;
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287 stderr_out ("pdump backtrace :\n");
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288 for (i=0;i<depth;i++)
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289 {
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290 if (!backtrace[i].obj)
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291 stderr_out (" - ind. (%d, %d)\n", backtrace[i].position, backtrace[i].offset);
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292 else
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293 {
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294 stderr_out (" - %s (%d, %d)\n",
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295 LHEADER_IMPLEMENTATION (backtrace[i].obj)->name,
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296 backtrace[i].position,
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297 backtrace[i].offset);
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298 }
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299 }
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300 }
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301
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302 static void pdump_register_object (Lisp_Object obj);
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303 static void pdump_register_struct (const void *data, const struct struct_description *sdesc, int count);
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304
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305 static EMACS_INT
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306 pdump_get_indirect_count (EMACS_INT code, const struct lrecord_description *idesc, const void *idata)
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307 {
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308 EMACS_INT count;
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309 const void *irdata;
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310
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311 int line = XD_INDIRECT_VAL (code);
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312 int delta = XD_INDIRECT_DELTA (code);
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313
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314 irdata = ((char *)idata) + idesc[line].offset;
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315 switch (idesc[line].type)
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316 {
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317 case XD_SIZE_T:
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318 count = *(size_t *)irdata;
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319 break;
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320 case XD_INT:
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321 count = *(int *)irdata;
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322 break;
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323 case XD_LONG:
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324 count = *(long *)irdata;
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325 break;
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326 case XD_BYTECOUNT:
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327 count = *(Bytecount *)irdata;
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328 break;
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329 default:
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330 stderr_out ("Unsupported count type : %d (line = %d, code=%ld)\n", idesc[line].type, line, (long)code);
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331 pdump_backtrace ();
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332 abort ();
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333 }
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334 count += delta;
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335 return count;
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336 }
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337
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338 static void
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339 pdump_register_sub (const void *data, const struct lrecord_description *desc, int me)
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340 {
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341 int pos;
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342
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343 restart:
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344 for (pos = 0; desc[pos].type != XD_END; pos++)
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345 {
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346 const void *rdata = (const char *)data + desc[pos].offset;
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347
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348 backtrace[me].position = pos;
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349 backtrace[me].offset = desc[pos].offset;
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350
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351 switch (desc[pos].type)
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352 {
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353 case XD_SPECIFIER_END:
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354 pos = 0;
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355 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
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356 goto restart;
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357 case XD_SIZE_T:
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358 case XD_INT:
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359 case XD_LONG:
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360 case XD_BYTECOUNT:
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361 case XD_LO_RESET_NIL:
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362 case XD_INT_RESET:
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363 case XD_LO_LINK:
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364 break;
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365 case XD_OPAQUE_DATA_PTR:
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366 {
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367 EMACS_INT count = desc[pos].data1;
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368 if (XD_IS_INDIRECT (count))
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369 count = pdump_get_indirect_count (count, desc, data);
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370
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371 pdump_add_entry (&pdump_opaque_data_list,
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372 *(void **)rdata,
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373 count,
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374 1,
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375 0);
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376 break;
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377 }
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378 case XD_C_STRING:
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379 {
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380 const char *str = *(const char **)rdata;
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381 if (str)
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382 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1, 0);
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383 break;
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384 }
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385 case XD_DOC_STRING:
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386 {
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387 const char *str = *(const char **)rdata;
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388 if ((EMACS_INT)str > 0)
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389 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1, 0);
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390 break;
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391 }
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392 case XD_LISP_OBJECT:
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|
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393 {
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394 const Lisp_Object *pobj = (const Lisp_Object *)rdata;
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|
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395
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|
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396 assert (desc[pos].data1 == 0);
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397
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|
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398 backtrace[me].offset = (const char *)pobj - (const char *)data;
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|
|
399 pdump_register_object (*pobj);
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|
400 break;
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|
|
401 }
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|
|
402 case XD_LISP_OBJECT_ARRAY:
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|
403 {
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|
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404 int i;
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|
|
405 EMACS_INT count = desc[pos].data1;
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|
|
406 if (XD_IS_INDIRECT (count))
|
|
|
407 count = pdump_get_indirect_count (count, desc, data);
|
|
|
408
|
|
|
409 for (i = 0; i < count; i++)
|
|
|
410 {
|
|
|
411 const Lisp_Object *pobj = ((const Lisp_Object *)rdata) + i;
|
|
|
412 Lisp_Object dobj = *pobj;
|
|
|
413
|
|
|
414 backtrace[me].offset = (const char *)pobj - (const char *)data;
|
|
|
415 pdump_register_object (dobj);
|
|
|
416 }
|
|
|
417 break;
|
|
|
418 }
|
|
|
419 case XD_STRUCT_PTR:
|
|
|
420 {
|
|
|
421 EMACS_INT count = desc[pos].data1;
|
|
|
422 const struct struct_description *sdesc = desc[pos].data2;
|
|
|
423 const char *dobj = *(const char **)rdata;
|
|
|
424 if (dobj)
|
|
|
425 {
|
|
|
426 if (XD_IS_INDIRECT (count))
|
|
|
427 count = pdump_get_indirect_count (count, desc, data);
|
|
|
428
|
|
|
429 pdump_register_struct (dobj, sdesc, count);
|
|
|
430 }
|
|
|
431 break;
|
|
|
432 }
|
|
|
433 default:
|
|
|
434 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
435 pdump_backtrace ();
|
|
|
436 abort ();
|
|
|
437 };
|
|
|
438 }
|
|
|
439 }
|
|
|
440
|
|
|
441 static void
|
|
|
442 pdump_register_object (Lisp_Object obj)
|
|
|
443 {
|
|
|
444 struct lrecord_header *objh;
|
|
|
445
|
|
|
446 if (!POINTER_TYPE_P (XTYPE (obj)))
|
|
|
447 return;
|
|
|
448
|
|
|
449 objh = XRECORD_LHEADER (obj);
|
|
|
450 if (!objh)
|
|
|
451 return;
|
|
|
452
|
|
|
453 if (pdump_get_entry (objh))
|
|
|
454 return;
|
|
|
455
|
|
|
456 if (LHEADER_IMPLEMENTATION (objh)->description)
|
|
|
457 {
|
|
|
458 int me = depth++;
|
|
|
459 if (me>65536)
|
|
|
460 {
|
|
|
461 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
462 abort ();
|
|
|
463 }
|
|
|
464 backtrace[me].obj = objh;
|
|
|
465 backtrace[me].position = 0;
|
|
|
466 backtrace[me].offset = 0;
|
|
|
467
|
|
|
468 pdump_add_entry (pdump_object_table + objh->type,
|
|
|
469 objh,
|
|
|
470 LHEADER_IMPLEMENTATION (objh)->static_size ?
|
|
|
471 LHEADER_IMPLEMENTATION (objh)->static_size :
|
|
|
472 LHEADER_IMPLEMENTATION (objh)->size_in_bytes_method (objh),
|
|
|
473 1,
|
|
|
474 1);
|
|
|
475 pdump_register_sub (objh,
|
|
|
476 LHEADER_IMPLEMENTATION (objh)->description,
|
|
|
477 me);
|
|
|
478 --depth;
|
|
|
479 }
|
|
|
480 else
|
|
|
481 {
|
|
|
482 pdump_alert_undump_object[objh->type]++;
|
|
|
483 stderr_out ("Undumpable object type : %s\n", LHEADER_IMPLEMENTATION (objh)->name);
|
|
|
484 pdump_backtrace ();
|
|
|
485 }
|
|
|
486 }
|
|
|
487
|
|
|
488 static void
|
|
|
489 pdump_register_struct (const void *data, const struct struct_description *sdesc, int count)
|
|
|
490 {
|
|
|
491 if (data && !pdump_get_entry (data))
|
|
|
492 {
|
|
|
493 int me = depth++;
|
|
|
494 int i;
|
|
|
495 if (me>65536)
|
|
|
496 {
|
|
|
497 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
498 abort ();
|
|
|
499 }
|
|
|
500 backtrace[me].obj = 0;
|
|
|
501 backtrace[me].position = 0;
|
|
|
502 backtrace[me].offset = 0;
|
|
|
503
|
|
|
504 pdump_add_entry (pdump_get_entry_list (sdesc),
|
|
|
505 data,
|
|
|
506 sdesc->size,
|
|
|
507 count,
|
|
|
508 0);
|
|
|
509 for (i=0; i<count; i++)
|
|
|
510 {
|
|
|
511 pdump_register_sub (((char *)data) + sdesc->size*i,
|
|
|
512 sdesc->description,
|
|
|
513 me);
|
|
|
514 }
|
|
|
515 --depth;
|
|
|
516 }
|
|
|
517 }
|
|
|
518
|
|
|
519 static void
|
|
|
520 pdump_dump_data (pdump_entry_list_elmt *elmt, const struct lrecord_description *desc)
|
|
|
521 {
|
|
|
522 size_t size = elmt->size;
|
|
|
523 int count = elmt->count;
|
|
|
524 if (desc)
|
|
|
525 {
|
|
|
526 int pos, i;
|
|
|
527 memcpy (pdump_buf, elmt->obj, size*count);
|
|
|
528
|
|
|
529 for (i=0; i<count; i++)
|
|
|
530 {
|
|
|
531 char *cur = ((char *)pdump_buf) + i*size;
|
|
|
532 restart:
|
|
|
533 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
534 {
|
|
|
535 void *rdata = cur + desc[pos].offset;
|
|
|
536 switch (desc[pos].type)
|
|
|
537 {
|
|
|
538 case XD_SPECIFIER_END:
|
|
|
539 desc = ((const Lisp_Specifier *)(elmt->obj))->methods->extra_description;
|
|
|
540 goto restart;
|
|
|
541 case XD_SIZE_T:
|
|
|
542 case XD_INT:
|
|
|
543 case XD_LONG:
|
|
|
544 case XD_BYTECOUNT:
|
|
|
545 break;
|
|
|
546 case XD_LO_RESET_NIL:
|
|
|
547 {
|
|
|
548 EMACS_INT num = desc[pos].data1;
|
|
|
549 int j;
|
|
|
550 if (XD_IS_INDIRECT (num))
|
|
|
551 num = pdump_get_indirect_count (num, desc, elmt->obj);
|
|
|
552 for (j=0; j<num; j++)
|
|
|
553 ((EMACS_INT *)rdata)[j] = pdump_qnil->save_offset;
|
|
|
554 break;
|
|
|
555 }
|
|
|
556 case XD_INT_RESET:
|
|
|
557 {
|
|
|
558 EMACS_INT val = desc[pos].data1;
|
|
|
559 if (XD_IS_INDIRECT (val))
|
|
|
560 val = pdump_get_indirect_count (val, desc, elmt->obj);
|
|
|
561 *(int *)rdata = val;
|
|
|
562 break;
|
|
|
563 }
|
|
|
564 case XD_OPAQUE_DATA_PTR:
|
|
|
565 case XD_C_STRING:
|
|
|
566 case XD_STRUCT_PTR:
|
|
|
567 {
|
|
|
568 void *ptr = *(void **)rdata;
|
|
|
569 if (ptr)
|
|
|
570 *(EMACS_INT *)rdata = pdump_get_entry (ptr)->save_offset;
|
|
|
571 break;
|
|
|
572 }
|
|
|
573 case XD_LO_LINK:
|
|
|
574 {
|
|
|
575 Lisp_Object obj = *(Lisp_Object *)rdata;
|
|
|
576 pdump_entry_list_elmt *elmt1;
|
|
|
577 for (;;)
|
|
|
578 {
|
|
|
579 elmt1 = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
580 if (elmt1)
|
|
|
581 break;
|
|
|
582 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
583 }
|
|
|
584 *(EMACS_INT *)rdata = elmt1->save_offset;
|
|
|
585 break;
|
|
|
586 }
|
|
|
587 case XD_LISP_OBJECT:
|
|
|
588 {
|
|
|
589 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
590
|
|
|
591 assert (desc[pos].data1 == 0);
|
|
|
592
|
|
|
593 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
594 *(EMACS_INT *)pobj =
|
|
|
595 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
596 break;
|
|
|
597 }
|
|
|
598 case XD_LISP_OBJECT_ARRAY:
|
|
|
599 {
|
|
|
600 EMACS_INT num = desc[pos].data1;
|
|
|
601 int j;
|
|
|
602 if (XD_IS_INDIRECT (num))
|
|
|
603 num = pdump_get_indirect_count (num, desc, elmt->obj);
|
|
|
604
|
|
|
605 for (j=0; j<num; j++)
|
|
|
606 {
|
|
|
607 Lisp_Object *pobj = ((Lisp_Object *)rdata) + j;
|
|
|
608 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
609 *(EMACS_INT *)pobj =
|
|
|
610 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
611 }
|
|
|
612 break;
|
|
|
613 }
|
|
|
614 case XD_DOC_STRING:
|
|
|
615 {
|
|
|
616 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
617 if (str > 0)
|
|
|
618 *(EMACS_INT *)rdata = pdump_get_entry ((void *)str)->save_offset;
|
|
|
619 break;
|
|
|
620 }
|
|
|
621 default:
|
|
|
622 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
623 abort ();
|
|
|
624 };
|
|
|
625 }
|
|
|
626 }
|
|
|
627 }
|
|
|
628 write (pdump_fd, desc ? pdump_buf : elmt->obj, size*count);
|
|
|
629 if (elmt->is_lrecord && ((size*count) & 3))
|
|
|
630 write (pdump_fd, "\0\0\0", 4-((size*count) & 3));
|
|
|
631 }
|
|
|
632
|
|
|
633 static void
|
|
|
634 pdump_reloc_one (void *data, EMACS_INT delta, const struct lrecord_description *desc)
|
|
|
635 {
|
|
|
636 int pos;
|
|
|
637
|
|
|
638 restart:
|
|
|
639 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
640 {
|
|
|
641 void *rdata = (char *)data + desc[pos].offset;
|
|
|
642 switch (desc[pos].type)
|
|
|
643 {
|
|
|
644 case XD_SPECIFIER_END:
|
|
|
645 pos = 0;
|
|
|
646 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
647 goto restart;
|
|
|
648 case XD_SIZE_T:
|
|
|
649 case XD_INT:
|
|
|
650 case XD_LONG:
|
|
|
651 case XD_BYTECOUNT:
|
|
|
652 case XD_INT_RESET:
|
|
|
653 break;
|
|
|
654 case XD_OPAQUE_DATA_PTR:
|
|
|
655 case XD_C_STRING:
|
|
|
656 case XD_STRUCT_PTR:
|
|
|
657 case XD_LO_LINK:
|
|
|
658 {
|
|
|
659 EMACS_INT ptr = *(EMACS_INT *)rdata;
|
|
|
660 if (ptr)
|
|
|
661 *(EMACS_INT *)rdata = ptr+delta;
|
|
|
662 break;
|
|
|
663 }
|
|
|
664 case XD_LISP_OBJECT:
|
|
|
665 {
|
|
|
666 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
667
|
|
|
668 assert (desc[pos].data1 == 0);
|
|
|
669
|
|
|
670 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
671 && ! EQ (*pobj, Qnull_pointer))
|
|
|
672 XSETOBJ (*pobj, XTYPE (*pobj), (char *) XPNTR (*pobj) + delta);
|
|
|
673
|
|
|
674 break;
|
|
|
675 }
|
|
|
676 case XD_LISP_OBJECT_ARRAY:
|
|
|
677 case XD_LO_RESET_NIL:
|
|
|
678 {
|
|
|
679 EMACS_INT num = desc[pos].data1;
|
|
|
680 int j;
|
|
|
681 if (XD_IS_INDIRECT (num))
|
|
|
682 num = pdump_get_indirect_count (num, desc, data);
|
|
|
683
|
|
|
684 for (j=0; j<num; j++)
|
|
|
685 {
|
|
|
686 Lisp_Object *pobj = (Lisp_Object *) rdata + j;
|
|
|
687
|
|
|
688 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
689 && ! EQ (*pobj, Qnull_pointer))
|
|
|
690 XSETOBJ (*pobj, XTYPE (*pobj), (char *) XPNTR (*pobj) + delta);
|
|
|
691 }
|
|
|
692 break;
|
|
|
693 }
|
|
|
694 case XD_DOC_STRING:
|
|
|
695 {
|
|
|
696 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
697 if (str > 0)
|
|
|
698 *(EMACS_INT *)rdata = str + delta;
|
|
|
699 break;
|
|
|
700 }
|
|
|
701 default:
|
|
|
702 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
703 abort ();
|
|
|
704 };
|
|
|
705 }
|
|
|
706 }
|
|
|
707
|
|
|
708 static void
|
|
|
709 pdump_allocate_offset (pdump_entry_list_elmt *elmt, const struct lrecord_description *desc)
|
|
|
710 {
|
|
|
711 size_t size = (elmt->is_lrecord ? (elmt->size + 3) & ~3 : elmt->size)*elmt->count;
|
|
|
712 elmt->save_offset = cur_offset;
|
|
|
713 if (size>max_size)
|
|
|
714 max_size = size;
|
|
|
715 cur_offset += size;
|
|
|
716 }
|
|
|
717
|
|
|
718 static void
|
|
|
719 pdump_scan_by_alignment (void (*f)(pdump_entry_list_elmt *, const struct lrecord_description *))
|
|
|
720 {
|
|
|
721 int align, i;
|
|
|
722 const struct lrecord_description *idesc;
|
|
|
723 pdump_entry_list_elmt *elmt;
|
|
|
724 for (align=8; align>=0; align--)
|
|
|
725 {
|
|
|
726 for (i=0; i<lrecord_type_count; i++)
|
|
|
727 if (pdump_object_table[i].align == align)
|
|
|
728 {
|
|
|
729 elmt = pdump_object_table[i].first;
|
|
|
730 if (!elmt)
|
|
|
731 continue;
|
|
|
732 idesc = lrecord_implementations_table[i]->description;
|
|
|
733 while (elmt)
|
|
|
734 {
|
|
|
735 f (elmt, idesc);
|
|
|
736 elmt = elmt->next;
|
|
|
737 }
|
|
|
738 }
|
|
|
739
|
|
|
740 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
741 if (pdump_struct_table.list[i].list.align == align)
|
|
|
742 {
|
|
|
743 elmt = pdump_struct_table.list[i].list.first;
|
|
|
744 idesc = pdump_struct_table.list[i].sdesc->description;
|
|
|
745 while (elmt)
|
|
|
746 {
|
|
|
747 f (elmt, idesc);
|
|
|
748 elmt = elmt->next;
|
|
|
749 }
|
|
|
750 }
|
|
|
751
|
|
|
752 elmt = pdump_opaque_data_list.first;
|
|
|
753 while (elmt)
|
|
|
754 {
|
|
|
755 if (align_table[elmt->size & 255] == align)
|
|
|
756 f (elmt, 0);
|
|
|
757 elmt = elmt->next;
|
|
|
758 }
|
|
|
759 }
|
|
|
760 }
|
|
|
761
|
|
|
762 static void
|
|
|
763 pdump_dump_staticvec (void)
|
|
|
764 {
|
|
|
765 EMACS_INT *reloc = xnew_array (EMACS_INT, staticidx);
|
|
|
766 int i;
|
|
|
767 write (pdump_fd, staticvec, staticidx*sizeof (Lisp_Object *));
|
|
|
768
|
|
|
769 for (i=0; i<staticidx; i++)
|
|
|
770 {
|
|
|
771 Lisp_Object obj = *staticvec[i];
|
|
|
772 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
773 reloc[i] = pdump_get_entry (XRECORD_LHEADER (obj))->save_offset;
|
|
|
774 else
|
|
|
775 reloc[i] = *(EMACS_INT *)(staticvec[i]);
|
|
|
776 }
|
|
|
777 write (pdump_fd, reloc, staticidx*sizeof (Lisp_Object));
|
|
|
778 free (reloc);
|
|
|
779 }
|
|
|
780
|
|
|
781 static void
|
|
|
782 pdump_dump_structvec (void)
|
|
|
783 {
|
|
|
784 int i;
|
|
|
785 for (i=0; i<dumpstructidx; i++)
|
|
|
786 {
|
|
|
787 EMACS_INT adr;
|
|
|
788 write (pdump_fd, &(dumpstructvec[i].data), sizeof (void *));
|
|
|
789 adr = pdump_get_entry (*(void **)(dumpstructvec[i].data))->save_offset;
|
|
|
790 write (pdump_fd, &adr, sizeof (adr));
|
|
|
791 }
|
|
|
792 }
|
|
|
793
|
|
|
794 static void
|
|
|
795 pdump_dump_opaquevec (void)
|
|
|
796 {
|
|
|
797 int i;
|
|
|
798 for (i=0; i<dumpopaqueidx; i++)
|
|
|
799 {
|
|
|
800 write (pdump_fd, &(dumpopaquevec[i]), sizeof (dumpopaquevec[i]));
|
|
|
801 write (pdump_fd, dumpopaquevec[i].data, dumpopaquevec[i].size);
|
|
|
802 }
|
|
|
803 }
|
|
|
804
|
|
|
805 static void
|
|
|
806 pdump_dump_itable (void)
|
|
|
807 {
|
|
|
808 write (pdump_fd, lrecord_implementations_table, lrecord_type_count*sizeof (lrecord_implementations_table[0]));
|
|
|
809 }
|
|
|
810
|
|
|
811 static void
|
|
|
812 pdump_dump_rtables (void)
|
|
|
813 {
|
|
|
814 int i, j;
|
|
|
815 pdump_entry_list_elmt *elmt;
|
|
|
816 pdump_reloc_table rt;
|
|
|
817
|
|
|
818 for (i=0; i<lrecord_type_count; i++)
|
|
|
819 {
|
|
|
820 elmt = pdump_object_table[i].first;
|
|
|
821 if (!elmt)
|
|
|
822 continue;
|
|
|
823 rt.desc = lrecord_implementations_table[i]->description;
|
|
|
824 rt.count = pdump_object_table[i].count;
|
|
|
825 write (pdump_fd, &rt, sizeof (rt));
|
|
|
826 while (elmt)
|
|
|
827 {
|
|
|
828 EMACS_INT rdata = pdump_get_entry (elmt->obj)->save_offset;
|
|
|
829 write (pdump_fd, &rdata, sizeof (rdata));
|
|
|
830 elmt = elmt->next;
|
|
|
831 }
|
|
|
832 }
|
|
|
833
|
|
|
834 rt.desc = 0;
|
|
|
835 rt.count = 0;
|
|
|
836 write (pdump_fd, &rt, sizeof (rt));
|
|
|
837
|
|
|
838 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
839 {
|
|
|
840 elmt = pdump_struct_table.list[i].list.first;
|
|
|
841 rt.desc = pdump_struct_table.list[i].sdesc->description;
|
|
|
842 rt.count = pdump_struct_table.list[i].list.count;
|
|
|
843 write (pdump_fd, &rt, sizeof (rt));
|
|
|
844 while (elmt)
|
|
|
845 {
|
|
|
846 EMACS_INT rdata = pdump_get_entry (elmt->obj)->save_offset;
|
|
|
847 for (j=0; j<elmt->count; j++)
|
|
|
848 {
|
|
|
849 write (pdump_fd, &rdata, sizeof (rdata));
|
|
|
850 rdata += elmt->size;
|
|
|
851 }
|
|
|
852 elmt = elmt->next;
|
|
|
853 }
|
|
|
854 }
|
|
|
855 rt.desc = 0;
|
|
|
856 rt.count = 0;
|
|
|
857 write (pdump_fd, &rt, sizeof (rt));
|
|
|
858 }
|
|
|
859
|
|
|
860 static void
|
|
|
861 pdump_dump_wired (void)
|
|
|
862 {
|
|
|
863 EMACS_INT count = pdump_wireidx + pdump_wireidx_list;
|
|
|
864 int i;
|
|
|
865
|
|
|
866 write (pdump_fd, &count, sizeof (count));
|
|
|
867
|
|
|
868 for (i=0; i<pdump_wireidx; i++)
|
|
|
869 {
|
|
|
870 EMACS_INT obj = pdump_get_entry (XRECORD_LHEADER (*(pdump_wirevec[i])))->save_offset;
|
|
|
871 write (pdump_fd, &pdump_wirevec[i], sizeof (pdump_wirevec[i]));
|
|
|
872 write (pdump_fd, &obj, sizeof (obj));
|
|
|
873 }
|
|
|
874
|
|
|
875 for (i=0; i<pdump_wireidx_list; i++)
|
|
|
876 {
|
|
|
877 Lisp_Object obj = *(pdump_wirevec_list[i]);
|
|
|
878 pdump_entry_list_elmt *elmt;
|
|
|
879 EMACS_INT res;
|
|
|
880
|
|
|
881 for (;;)
|
|
|
882 {
|
|
|
883 const struct lrecord_description *desc;
|
|
|
884 int pos;
|
|
|
885 elmt = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
886 if (elmt)
|
|
|
887 break;
|
|
|
888 desc = XRECORD_LHEADER_IMPLEMENTATION (obj)->description;
|
|
|
889 for (pos = 0; desc[pos].type != XD_LO_LINK; pos++)
|
|
|
890 assert (desc[pos].type != XD_END);
|
|
|
891
|
|
|
892 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
893 }
|
|
|
894 res = elmt->save_offset;
|
|
|
895
|
|
|
896 write (pdump_fd, &pdump_wirevec_list[i], sizeof (pdump_wirevec_list[i]));
|
|
|
897 write (pdump_fd, &res, sizeof (res));
|
|
|
898 }
|
|
|
899 }
|
|
|
900
|
|
|
901 void
|
|
|
902 pdump (void)
|
|
|
903 {
|
|
|
904 int i;
|
|
|
905 Lisp_Object t_console, t_device, t_frame;
|
|
|
906 int none;
|
|
|
907 dump_header hd;
|
|
|
908
|
|
|
909 /* These appear in a DEFVAR_LISP, which does a staticpro() */
|
|
|
910 t_console = Vterminal_console;
|
|
|
911 t_frame = Vterminal_frame;
|
|
|
912 t_device = Vterminal_device;
|
|
|
913
|
|
|
914 Vterminal_console = Qnil;
|
|
|
915 Vterminal_frame = Qnil;
|
|
|
916 Vterminal_device = Qnil;
|
|
|
917
|
|
|
918 pdump_hash = xnew_array_and_zero (pdump_entry_list_elmt *, PDUMP_HASHSIZE);
|
|
|
919
|
|
|
920 for (i=0; i<lrecord_type_count; i++)
|
|
|
921 {
|
|
|
922 pdump_object_table[i].first = 0;
|
|
|
923 pdump_object_table[i].align = 8;
|
|
|
924 pdump_object_table[i].count = 0;
|
|
|
925 pdump_alert_undump_object[i] = 0;
|
|
|
926 }
|
|
|
927 pdump_struct_table.count = 0;
|
|
|
928 pdump_struct_table.size = -1;
|
|
|
929
|
|
|
930 pdump_opaque_data_list.first = 0;
|
|
|
931 pdump_opaque_data_list.align = 8;
|
|
|
932 pdump_opaque_data_list.count = 0;
|
|
|
933 depth = 0;
|
|
|
934
|
|
|
935 for (i=0; i<staticidx; i++)
|
|
|
936 pdump_register_object (*staticvec[i]);
|
|
|
937 for (i=0; i<pdump_wireidx; i++)
|
|
|
938 pdump_register_object (*pdump_wirevec[i]);
|
|
|
939
|
|
|
940 none = 1;
|
|
|
941 for (i=0; i<lrecord_type_count; i++)
|
|
|
942 if (pdump_alert_undump_object[i])
|
|
|
943 {
|
|
|
944 if (none)
|
|
|
945 printf ("Undumpable types list :\n");
|
|
|
946 none = 0;
|
|
|
947 printf (" - %s (%d)\n", lrecord_implementations_table[i]->name, pdump_alert_undump_object[i]);
|
|
|
948 }
|
|
|
949 if (!none)
|
|
|
950 return;
|
|
|
951
|
|
|
952 for (i=0; i<dumpstructidx; i++)
|
|
|
953 pdump_register_struct (*(void **)(dumpstructvec[i].data), dumpstructvec[i].desc, 1);
|
|
|
954
|
|
|
955 memcpy (hd.signature, DUMP_SIGNATURE, DUMP_SIGNATURE_LEN);
|
|
|
956 hd.id = dump_id;
|
|
|
957 hd.reloc_address = 0;
|
|
|
958 hd.nb_staticpro = staticidx;
|
|
|
959 hd.nb_structdmp = dumpstructidx;
|
|
|
960 hd.nb_opaquedmp = dumpopaqueidx;
|
|
|
961
|
|
|
962 cur_offset = 256;
|
|
|
963 max_size = 0;
|
|
|
964
|
|
|
965 pdump_scan_by_alignment (pdump_allocate_offset);
|
|
|
966 pdump_qnil = pdump_get_entry (XRECORD_LHEADER (Qnil));
|
|
|
967
|
|
|
968 pdump_buf = xmalloc (max_size);
|
|
|
969 /* Avoid use of the `open' macro. We want the real function. */
|
|
|
970 #undef open
|
|
|
971 pdump_fd = open (EMACS_PROGNAME ".dmp",
|
|
|
972 O_WRONLY | O_CREAT | O_TRUNC | OPEN_BINARY, 0666);
|
|
|
973 hd.stab_offset = (cur_offset + 3) & ~3;
|
|
|
974
|
|
|
975 write (pdump_fd, &hd, sizeof (hd));
|
|
|
976 lseek (pdump_fd, 256, SEEK_SET);
|
|
|
977
|
|
|
978 pdump_scan_by_alignment (pdump_dump_data);
|
|
|
979
|
|
|
980 lseek (pdump_fd, hd.stab_offset, SEEK_SET);
|
|
|
981
|
|
|
982 pdump_dump_staticvec ();
|
|
|
983 pdump_dump_structvec ();
|
|
|
984 pdump_dump_opaquevec ();
|
|
|
985 pdump_dump_itable ();
|
|
|
986 pdump_dump_rtables ();
|
|
|
987 pdump_dump_wired ();
|
|
|
988
|
|
|
989 close (pdump_fd);
|
|
|
990 free (pdump_buf);
|
|
|
991
|
|
|
992 free (pdump_hash);
|
|
|
993
|
|
|
994 Vterminal_console = t_console;
|
|
|
995 Vterminal_frame = t_frame;
|
|
|
996 Vterminal_device = t_device;
|
|
|
997 }
|
|
|
998
|
|
|
999 static int pdump_load_check (void)
|
|
|
1000 {
|
|
|
1001 return (!memcmp (((dump_header *)pdump_start)->signature, DUMP_SIGNATURE, DUMP_SIGNATURE_LEN)
|
|
|
1002 && ((dump_header *)pdump_start)->id == dump_id);
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 static int pdump_load_finish (void)
|
|
|
1006 {
|
|
|
1007 int i;
|
|
|
1008 char *p;
|
|
|
1009 EMACS_INT delta;
|
|
|
1010 EMACS_INT count;
|
|
|
1011
|
|
|
1012 pdump_end = pdump_start + pdump_length;
|
|
|
1013
|
|
|
1014 #define PDUMP_READ(p, type) (p = (char*) (((type *) p) + 1), *((type *) p - 1))
|
|
|
1015
|
|
|
1016 staticidx = ((dump_header *)(pdump_start))->nb_staticpro;
|
|
|
1017 delta = ((EMACS_INT)pdump_start) - ((dump_header *)pdump_start)->reloc_address;
|
|
|
1018 p = pdump_start + ((dump_header *)pdump_start)->stab_offset;
|
|
|
1019
|
|
|
1020 /* Put back the staticvec in place */
|
|
|
1021 memcpy (staticvec, p, staticidx*sizeof (Lisp_Object *));
|
|
|
1022 p += staticidx*sizeof (Lisp_Object *);
|
|
|
1023 for (i=0; i<staticidx; i++)
|
|
|
1024 {
|
|
|
1025 Lisp_Object obj = PDUMP_READ (p, Lisp_Object);
|
|
|
1026 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
1027 XSETOBJ (obj, XTYPE (obj), (char *) XPNTR (obj) + delta);
|
|
|
1028 *staticvec[i] = obj;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 /* Put back the dumpstructs */
|
|
|
1032 for (i=0; i<((dump_header *)pdump_start)->nb_structdmp; i++)
|
|
|
1033 {
|
|
|
1034 void **adr = PDUMP_READ (p, void **);
|
|
|
1035 *adr = (void *) (PDUMP_READ (p, char *) + delta);
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 /* Put back the opaques */
|
|
|
1039 for (i=0; i<((dump_header *)pdump_start)->nb_opaquedmp; i++)
|
|
|
1040 {
|
|
|
1041 struct pdump_dumpopaqueinfo di = PDUMP_READ (p, struct pdump_dumpopaqueinfo);
|
|
|
1042 memcpy (di.data, p, di.size);
|
|
|
1043 p += di.size;
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 /* Put back the lrecord_implementations_table */
|
|
|
1047 /* The (void *) cast is there to make Ben happy. */
|
|
|
1048 memcpy ((void *) lrecord_implementations_table, p, lrecord_type_count*sizeof (lrecord_implementations_table[0]));
|
|
|
1049 p += lrecord_type_count*sizeof (lrecord_implementations_table[0]);
|
|
|
1050
|
|
|
1051 /* Reinitialize lrecord_markers from lrecord_implementations_table */
|
|
|
1052 for (i=0; i < lrecord_type_count; i++)
|
|
|
1053 if (lrecord_implementations_table[i])
|
|
|
1054 lrecord_markers[i] = lrecord_implementations_table[i]->marker;
|
|
|
1055
|
|
|
1056 /* Do the relocations */
|
|
|
1057 pdump_rt_list = p;
|
|
|
1058 count = 2;
|
|
|
1059 for (;;)
|
|
|
1060 {
|
|
|
1061 pdump_reloc_table rt = PDUMP_READ (p, pdump_reloc_table);
|
|
|
1062 if (rt.desc)
|
|
|
1063 {
|
|
|
1064 for (i=0; i < rt.count; i++)
|
|
|
1065 {
|
|
|
1066 char *adr = delta + *(char **)p;
|
|
|
1067 *(char **)p = adr;
|
|
|
1068 pdump_reloc_one (adr, delta, rt.desc);
|
|
|
1069 p += sizeof (char *);
|
|
|
1070 }
|
|
|
1071 } else
|
|
|
1072 if (!(--count))
|
|
|
1073 break;
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 /* Put the pdump_wire variables in place */
|
|
|
1077 count = PDUMP_READ (p, EMACS_INT);
|
|
|
1078
|
|
|
1079 for (i=0; i<count; i++)
|
|
|
1080 {
|
|
|
1081 Lisp_Object *var = PDUMP_READ (p, Lisp_Object *);
|
|
|
1082 Lisp_Object obj = PDUMP_READ (p, Lisp_Object);
|
|
|
1083
|
|
|
1084 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
1085 XSETOBJ (obj, XTYPE (obj), (char *) XPNTR (obj) + delta);
|
|
|
1086
|
|
|
1087 *var = obj;
|
|
|
1088 }
|
|
|
1089
|
|
|
1090 /* Final cleanups */
|
|
|
1091 /* reorganize hash tables */
|
|
|
1092 p = pdump_rt_list;
|
|
|
1093 for (;;)
|
|
|
1094 {
|
|
|
1095 pdump_reloc_table rt = PDUMP_READ (p, pdump_reloc_table);
|
|
|
1096 if (!rt.desc)
|
|
|
1097 break;
|
|
|
1098 if (rt.desc == hash_table_description)
|
|
|
1099 {
|
|
|
1100 for (i=0; i < rt.count; i++)
|
|
|
1101 pdump_reorganize_hash_table (PDUMP_READ (p, Lisp_Object));
|
|
|
1102 break;
|
|
|
1103 } else
|
|
|
1104 p += sizeof (Lisp_Object) * rt.count;
|
|
|
1105 }
|
|
|
1106
|
|
|
1107 /* Put back noninteractive1 to its real value */
|
|
|
1108 noninteractive1 = noninteractive;
|
|
|
1109
|
|
|
1110 return 1;
|
|
|
1111 }
|
|
|
1112
|
|
|
1113 #ifdef WINDOWSNT
|
|
406
|
1114 /* Free the mapped file if we decide we don't want it after all */
|
|
404
|
1115 static void pdump_file_unmap(void)
|
|
|
1116 {
|
|
406
|
1117 UnmapViewOfFile (pdump_start);
|
|
|
1118 CloseHandle (pdump_hFile);
|
|
|
1119 CloseHandle (pdump_hMap);
|
|
404
|
1120 }
|
|
|
1121
|
|
|
1122 static int pdump_file_get(const char *path)
|
|
|
1123 {
|
|
|
1124
|
|
406
|
1125 pdump_hFile = CreateFile (path,
|
|
|
1126 GENERIC_READ + GENERIC_WRITE, /* Required for copy on write */
|
|
|
1127 0, /* Not shared */
|
|
|
1128 NULL, /* Not inheritable */
|
|
|
1129 OPEN_EXISTING,
|
|
|
1130 FILE_ATTRIBUTE_NORMAL,
|
|
|
1131 NULL); /* No template file */
|
|
|
1132 if (pdump_hFile == INVALID_HANDLE_VALUE)
|
|
404
|
1133 return 0;
|
|
|
1134
|
|
406
|
1135 pdump_length = GetFileSize (pdump_hFile, NULL);
|
|
|
1136 pdump_hMap = CreateFileMapping (pdump_hFile,
|
|
|
1137 NULL, /* No security attributes */
|
|
|
1138 PAGE_WRITECOPY, /* Copy on write */
|
|
|
1139 0, /* Max size, high half */
|
|
|
1140 0, /* Max size, low half */
|
|
|
1141 NULL); /* Unnamed */
|
|
|
1142 if (pdump_hMap == INVALID_HANDLE_VALUE)
|
|
404
|
1143 return 0;
|
|
|
1144
|
|
406
|
1145 pdump_start = MapViewOfFile (pdump_hMap,
|
|
404
|
1146 FILE_MAP_COPY, /* Copy on write */
|
|
|
1147 0, /* Start at zero */
|
|
|
1148 0,
|
|
|
1149 0); /* Map all of it */
|
|
|
1150 pdump_free = pdump_file_unmap;
|
|
|
1151 return 1;
|
|
|
1152 }
|
|
|
1153
|
|
406
|
1154 /* pdump_resource_free is called (via the pdump_free pointer) to release
|
|
|
1155 any resources allocated by pdump_resource_get. Since the Windows API
|
|
|
1156 specs specifically state that you don't need to (and shouldn't) free the
|
|
|
1157 resources allocated by FindResource, LoadResource, and LockResource this
|
|
|
1158 routine does nothing. */
|
|
404
|
1159 static void pdump_resource_free (void)
|
|
406
|
1160 {
|
|
|
1161 }
|
|
|
1162
|
|
404
|
1163 static int pdump_resource_get (void)
|
|
|
1164 {
|
|
|
1165 HRSRC hRes; /* Handle to dump resource */
|
|
|
1166 HRSRC hResLoad; /* Handle to loaded dump resource */
|
|
|
1167
|
|
|
1168 /* See Q126630 which describes how Windows NT and 95 trap writes to
|
|
|
1169 resource sections and duplicate the page to allow the write to proceed.
|
|
|
1170 It also describes how to make the resource section read/write (and hence
|
|
|
1171 private to each process). Doing this avoids the exceptions and related
|
|
|
1172 overhead, but causes the resource section to be private to each process
|
|
|
1173 that is running XEmacs. Since the resource section contains little
|
|
|
1174 other than the dumped data, which should be private to each process, we
|
|
|
1175 make the whole resource section read/write so we don't have to copy it. */
|
|
|
1176
|
|
|
1177 hRes = FindResource (NULL, MAKEINTRESOURCE(101), "DUMP");
|
|
|
1178 if (hRes == NULL)
|
|
|
1179 return 0;
|
|
|
1180
|
|
|
1181 /* Found it, use the data in the resource */
|
|
|
1182 hResLoad = LoadResource (NULL, hRes);
|
|
|
1183 if (hResLoad == NULL)
|
|
|
1184 return 0;
|
|
|
1185
|
|
|
1186 pdump_start = LockResource (hResLoad);
|
|
|
1187 if (pdump_start == NULL)
|
|
|
1188 return 0;
|
|
|
1189
|
|
|
1190 pdump_free = pdump_resource_free;
|
|
|
1191 pdump_length = SizeofResource (NULL, hRes);
|
|
|
1192 if (pdump_length <= sizeof(dump_header))
|
|
|
1193 {
|
|
|
1194 pdump_start = 0;
|
|
|
1195 return 0;
|
|
|
1196 }
|
|
|
1197
|
|
|
1198 return 1;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 #else /* !WINDOWSNT */
|
|
|
1202
|
|
|
1203 static void *pdump_mallocadr;
|
|
|
1204
|
|
|
1205 static void pdump_file_free(void)
|
|
|
1206 {
|
|
|
1207 xfree (pdump_mallocadr);
|
|
|
1208 }
|
|
|
1209
|
|
|
1210 #ifdef HAVE_MMAP
|
|
|
1211 static void pdump_file_unmap(void)
|
|
|
1212 {
|
|
|
1213 munmap (pdump_start, pdump_length);
|
|
|
1214 }
|
|
|
1215 #endif
|
|
|
1216
|
|
|
1217 static int pdump_file_get(const char *path)
|
|
|
1218 {
|
|
|
1219 int fd = open (path, O_RDONLY | OPEN_BINARY);
|
|
|
1220 if (fd<0)
|
|
|
1221 return 0;
|
|
|
1222
|
|
|
1223 pdump_length = lseek (fd, 0, SEEK_END);
|
|
|
1224 if (pdump_length < sizeof (dump_header))
|
|
|
1225 {
|
|
|
1226 close (fd);
|
|
|
1227 return 0;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 lseek (fd, 0, SEEK_SET);
|
|
|
1231
|
|
|
1232 #ifdef HAVE_MMAP
|
|
|
1233 pdump_start = (char *) mmap (0, pdump_length, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
|
|
|
1234 if (pdump_start != MAP_FAILED)
|
|
|
1235 {
|
|
|
1236 pdump_free = pdump_file_unmap;
|
|
|
1237 close (fd);
|
|
|
1238 return 1;
|
|
|
1239 }
|
|
|
1240 #endif
|
|
|
1241
|
|
|
1242 pdump_mallocadr = xmalloc(pdump_length+255);
|
|
|
1243 pdump_free = pdump_file_free;
|
|
|
1244 pdump_start = (char *)((255 + (unsigned long)pdump_mallocadr) & ~255);
|
|
|
1245 read (pdump_fd, pdump_start, pdump_length);
|
|
|
1246
|
|
|
1247 close (pdump_fd);
|
|
|
1248 return 1;
|
|
|
1249 }
|
|
|
1250 #endif /* !WINDOWSNT */
|
|
|
1251
|
|
|
1252
|
|
|
1253 static int pdump_file_try(char *exe_path)
|
|
|
1254 {
|
|
|
1255 char *w;
|
|
|
1256
|
|
|
1257 w = exe_path + strlen(exe_path);
|
|
|
1258 do
|
|
|
1259 {
|
|
|
1260 sprintf (w, "-%s-%08x.dmp", EMACS_VERSION, dump_id);
|
|
|
1261 if (pdump_file_get (exe_path))
|
|
|
1262 {
|
|
|
1263 if (pdump_load_check ())
|
|
|
1264 return 1;
|
|
|
1265 pdump_free();
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 sprintf (w, "-%08x.dmp", dump_id);
|
|
|
1269 if (pdump_file_get (exe_path))
|
|
|
1270 {
|
|
|
1271 if (pdump_load_check ())
|
|
|
1272 return 1;
|
|
|
1273 pdump_free();
|
|
|
1274 }
|
|
|
1275
|
|
|
1276 sprintf (w, ".dmp");
|
|
|
1277 if (pdump_file_get (exe_path))
|
|
|
1278 {
|
|
|
1279 if (pdump_load_check ())
|
|
|
1280 return 1;
|
|
|
1281 pdump_free();
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 do
|
|
|
1285 w--;
|
|
|
1286 while (w>exe_path && !IS_DIRECTORY_SEP (*w) && (*w != '-') && (*w != '.'));
|
|
|
1287 }
|
|
|
1288 while (w>exe_path && !IS_DIRECTORY_SEP (*w));
|
|
|
1289 return 0;
|
|
|
1290 }
|
|
|
1291
|
|
|
1292 int pdump_load(const char *argv0)
|
|
|
1293 {
|
|
|
1294 char exe_path[PATH_MAX];
|
|
406
|
1295 #ifdef WINDOWSNT
|
|
|
1296 GetModuleFileName (NULL, exe_path, PATH_MAX);
|
|
|
1297 #else /* !WINDOWSNT */
|
|
404
|
1298 char *w;
|
|
|
1299 const char *dir, *p;
|
|
|
1300
|
|
|
1301 dir = argv0;
|
|
|
1302 if (dir[0] == '-')
|
|
|
1303 {
|
|
|
1304 /* XEmacs as a login shell, oh goody! */
|
|
|
1305 dir = getenv("SHELL");
|
|
|
1306 }
|
|
|
1307
|
|
|
1308 p = dir + strlen(dir);
|
|
|
1309 while (p != dir && !IS_ANY_SEP (p[-1])) p--;
|
|
|
1310
|
|
|
1311 if (p != dir)
|
|
|
1312 {
|
|
|
1313 /* invocation-name includes a directory component -- presumably it
|
|
|
1314 is relative to cwd, not $PATH */
|
|
|
1315 strcpy (exe_path, dir);
|
|
|
1316 }
|
|
|
1317 else
|
|
|
1318 {
|
|
|
1319 const char *path = getenv ("PATH");
|
|
|
1320 const char *name = p;
|
|
|
1321 for (;;)
|
|
|
1322 {
|
|
|
1323 p = path;
|
|
|
1324 while (*p && *p != SEPCHAR)
|
|
|
1325 p++;
|
|
|
1326 if (p == path)
|
|
|
1327 {
|
|
|
1328 exe_path[0] = '.';
|
|
|
1329 w = exe_path + 1;
|
|
|
1330 }
|
|
|
1331 else
|
|
|
1332 {
|
|
|
1333 memcpy (exe_path, path, p - path);
|
|
|
1334 w = exe_path + (p - path);
|
|
|
1335 }
|
|
|
1336 if (!IS_DIRECTORY_SEP (w[-1]))
|
|
|
1337 {
|
|
|
1338 *w++ = '/';
|
|
|
1339 }
|
|
|
1340 strcpy(w, name);
|
|
|
1341
|
|
|
1342 /* ### #$%$#^$^@%$^#%@$ ! */
|
|
|
1343 #ifdef access
|
|
|
1344 #undef access
|
|
|
1345 #endif
|
|
|
1346
|
|
|
1347 if (!access (exe_path, X_OK))
|
|
|
1348 break;
|
|
|
1349 if (!*p)
|
|
|
1350 {
|
|
|
1351 /* Oh well, let's have some kind of default */
|
|
|
1352 sprintf (exe_path, "./%s", name);
|
|
|
1353 break;
|
|
|
1354 }
|
|
|
1355 path = p+1;
|
|
|
1356 }
|
|
|
1357 }
|
|
|
1358 #endif /* WINDOWSNT */
|
|
|
1359
|
|
|
1360 if (pdump_file_try (exe_path))
|
|
|
1361 {
|
|
|
1362 pdump_load_finish ();
|
|
|
1363 return 1;
|
|
|
1364 }
|
|
|
1365
|
|
|
1366 #ifdef WINDOWSNT
|
|
|
1367 if (pdump_resource_get ())
|
|
|
1368 {
|
|
|
1369 if (pdump_load_check ())
|
|
|
1370 {
|
|
|
1371 pdump_load_finish ();
|
|
|
1372 return 1;
|
|
|
1373 }
|
|
|
1374 pdump_free ();
|
|
|
1375 }
|
|
|
1376 #endif
|
|
|
1377
|
|
|
1378 return 0;
|
|
|
1379 }
|
