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442
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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
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26 #include "dump-id.h"
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27 #include "specifier.h"
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28 #include "alloc.h"
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29 #include "elhash.h"
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30 #include "sysfile.h"
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31 #include "console-stream.h"
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32 #include "dumper.h"
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33
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34 #ifdef WIN32_NATIVE
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35 #include "nt.h"
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36 #else
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37 #ifdef HAVE_MMAP
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38 #include <sys/mman.h>
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39 #endif
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40 #endif
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41
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42 #ifndef SEPCHAR
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43 #define SEPCHAR ':'
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44 #endif
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45
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46 typedef struct
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47 {
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48 const struct lrecord_description *desc;
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49 int count;
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50 } pdump_reloc_table;
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51
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52 static char *pdump_rt_list = 0;
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53
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54 void
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55 pdump_objects_unmark (void)
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56 {
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57 int i;
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58 char *p = pdump_rt_list;
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59 if (p)
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60 for (;;)
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61 {
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62 pdump_reloc_table *rt = (pdump_reloc_table *)p;
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63 p += sizeof (pdump_reloc_table);
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64 if (rt->desc)
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65 {
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66 for (i=0; i<rt->count; i++)
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67 {
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68 struct lrecord_header *lh = * (struct lrecord_header **) p;
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69 if (! C_READONLY_RECORD_HEADER_P (lh))
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70 UNMARK_RECORD_HEADER (lh);
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71 p += sizeof (EMACS_INT);
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72 }
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73 } else
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74 break;
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75 }
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76 }
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77
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78
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79 /* The structure of the file
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80 *
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81 * 0 - header
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82 * 256 - dumped objects
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83 * stab_offset - nb_staticpro*(Lisp_Object *) from staticvec
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84 * - nb_staticpro*(relocated Lisp_Object) pointed to by staticpro
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85 * - nb_structdmp*pair(void *, adr) for pointers to structures
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86 * - lrecord_implementations_table[]
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87 * - relocation table
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88 * - wired variable address/value couples with the count preceding the list
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89 */
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90
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91
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92 #define DUMP_SIGNATURE "XEmacsDP"
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93 #define DUMP_SIGNATURE_LEN (sizeof (DUMP_SIGNATURE) - 1)
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94
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95 typedef struct
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96 {
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97 char signature[DUMP_SIGNATURE_LEN];
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98 unsigned int id;
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99 EMACS_UINT stab_offset;
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100 EMACS_UINT reloc_address;
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101 int nb_staticpro;
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102 int nb_structdmp;
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103 int nb_opaquedmp;
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104 } dump_header;
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105
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106 char *pdump_start, *pdump_end;
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107 static size_t pdump_length;
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108
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109 #ifdef WIN32_NATIVE
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110 // Handle for the dump file
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111 HANDLE pdump_hFile = INVALID_HANDLE_VALUE;
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112 // Handle for the file mapping object for the dump file
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113 HANDLE pdump_hMap = INVALID_HANDLE_VALUE;
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114 #endif
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115
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116 void (*pdump_free) (void);
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117
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118 static const unsigned char align_table[256] =
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119 {
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120 8, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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121 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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122 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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123 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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124 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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125 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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126 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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127 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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128 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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129 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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130 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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131 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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132 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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133 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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134 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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135 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0
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136 };
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137
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138 typedef struct pdump_entry_list_elmt
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139 {
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140 struct pdump_entry_list_elmt *next;
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141 const void *obj;
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142 size_t size;
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143 int count;
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144 int is_lrecord;
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145 EMACS_INT save_offset;
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146 } pdump_entry_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_entry_list_elmt *first;
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151 int align;
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152 int count;
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153 } pdump_entry_list;
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154
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155 typedef struct pdump_struct_list_elmt
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156 {
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157 pdump_entry_list list;
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158 const struct struct_description *sdesc;
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159 } pdump_struct_list_elmt;
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160
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161 typedef struct
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162 {
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163 pdump_struct_list_elmt *list;
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164 int count;
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165 int size;
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166 } pdump_struct_list;
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167
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168 static pdump_entry_list pdump_object_table[256];
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169 static pdump_entry_list pdump_opaque_data_list;
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170 static pdump_struct_list pdump_struct_table;
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171
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172 static int pdump_alert_undump_object[256];
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173
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174 static unsigned long cur_offset;
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175 static size_t max_size;
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176 static int pdump_fd;
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177 static void *pdump_buf;
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178
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179 #define PDUMP_HASHSIZE 200001
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180
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181 static pdump_entry_list_elmt **pdump_hash;
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182
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183 /* Since most pointers are eight bytes aligned, the >>3 allows for a better hash */
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184 static int
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185 pdump_make_hash (const void *obj)
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186 {
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187 return ((unsigned long)(obj)>>3) % PDUMP_HASHSIZE;
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188 }
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189
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190 static pdump_entry_list_elmt *
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191 pdump_get_entry (const void *obj)
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192 {
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193 int pos = pdump_make_hash (obj);
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194 pdump_entry_list_elmt *e;
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195
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196 assert (obj != 0);
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197
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198 while ((e = pdump_hash[pos]) != 0)
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199 {
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200 if (e->obj == obj)
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201 return e;
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202
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203 pos++;
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204 if (pos == PDUMP_HASHSIZE)
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205 pos = 0;
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206 }
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207 return 0;
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208 }
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209
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210 static void
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211 pdump_add_entry (pdump_entry_list *list, const void *obj, size_t size, int count, int is_lrecord)
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212 {
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213 pdump_entry_list_elmt *e;
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214 int align;
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215 int pos = pdump_make_hash (obj);
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216
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217 while ((e = pdump_hash[pos]) != 0)
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218 {
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219 if (e->obj == obj)
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220 return;
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221
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222 pos++;
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223 if (pos == PDUMP_HASHSIZE)
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224 pos = 0;
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225 }
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226
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227 e = xnew (pdump_entry_list_elmt);
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228
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229 e->next = list->first;
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230 e->obj = obj;
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231 e->size = size;
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232 e->count = count;
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233 e->is_lrecord = is_lrecord;
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234 list->first = e;
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235
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236 list->count += count;
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237 pdump_hash[pos] = e;
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238
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239 align = align_table[size & 255];
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240 if (align < 2 && is_lrecord)
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241 align = 2;
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242
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243 if (align < list->align)
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244 list->align = align;
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245 }
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246
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247 static pdump_entry_list *
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248 pdump_get_entry_list (const struct struct_description *sdesc)
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249 {
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250 int i;
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251 for (i=0; i<pdump_struct_table.count; i++)
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252 if (pdump_struct_table.list[i].sdesc == sdesc)
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253 return &pdump_struct_table.list[i].list;
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254
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255 if (pdump_struct_table.size <= pdump_struct_table.count)
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256 {
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257 if (pdump_struct_table.size == -1)
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258 pdump_struct_table.size = 10;
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259 else
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260 pdump_struct_table.size = pdump_struct_table.size * 2;
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261 pdump_struct_table.list = (pdump_struct_list_elmt *)
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262 xrealloc (pdump_struct_table.list,
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263 pdump_struct_table.size * sizeof (pdump_struct_list_elmt));
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264 }
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265 pdump_struct_table.list[pdump_struct_table.count].list.first = 0;
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266 pdump_struct_table.list[pdump_struct_table.count].list.align = 8;
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267 pdump_struct_table.list[pdump_struct_table.count].list.count = 0;
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268 pdump_struct_table.list[pdump_struct_table.count].sdesc = sdesc;
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269
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270 return &pdump_struct_table.list[pdump_struct_table.count++].list;
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271 }
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272
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273 static struct
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274 {
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275 struct lrecord_header *obj;
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276 int position;
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277 int offset;
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278 } backtrace[65536];
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279
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280 static int depth;
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281
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282 static void pdump_backtrace (void)
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283 {
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284 int i;
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285 stderr_out ("pdump backtrace :\n");
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286 for (i=0;i<depth;i++)
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287 {
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288 if (!backtrace[i].obj)
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289 stderr_out (" - ind. (%d, %d)\n", backtrace[i].position, backtrace[i].offset);
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290 else
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291 {
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292 stderr_out (" - %s (%d, %d)\n",
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293 LHEADER_IMPLEMENTATION (backtrace[i].obj)->name,
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294 backtrace[i].position,
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295 backtrace[i].offset);
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296 }
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297 }
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298 }
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299
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300 static void pdump_register_object (Lisp_Object obj);
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301 static void pdump_register_struct (const void *data, const struct struct_description *sdesc, int count);
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302
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303 static EMACS_INT
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304 pdump_get_indirect_count (EMACS_INT code, const struct lrecord_description *idesc, const void *idata)
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305 {
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306 EMACS_INT count;
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307 const void *irdata;
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308
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309 int line = XD_INDIRECT_VAL (code);
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310 int delta = XD_INDIRECT_DELTA (code);
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311
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312 irdata = ((char *)idata) + idesc[line].offset;
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313 switch (idesc[line].type)
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314 {
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315 case XD_SIZE_T:
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316 count = *(size_t *)irdata;
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317 break;
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318 case XD_INT:
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319 count = *(int *)irdata;
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320 break;
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321 case XD_LONG:
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322 count = *(long *)irdata;
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323 break;
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324 case XD_BYTECOUNT:
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325 count = *(Bytecount *)irdata;
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326 break;
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327 default:
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328 stderr_out ("Unsupported count type : %d (line = %d, code=%ld)\n", idesc[line].type, line, (long)code);
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329 pdump_backtrace ();
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330 abort ();
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331 }
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332 count += delta;
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333 return count;
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334 }
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335
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336 static void
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337 pdump_register_sub (const void *data, const struct lrecord_description *desc, int me)
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338 {
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339 int pos;
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340
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341 restart:
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342 for (pos = 0; desc[pos].type != XD_END; pos++)
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343 {
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344 const void *rdata = (const char *)data + desc[pos].offset;
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345
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346 backtrace[me].position = pos;
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347 backtrace[me].offset = desc[pos].offset;
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348
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349 switch (desc[pos].type)
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350 {
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351 case XD_SPECIFIER_END:
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352 pos = 0;
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353 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
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354 goto restart;
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355 case XD_SIZE_T:
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356 case XD_INT:
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357 case XD_LONG:
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358 case XD_BYTECOUNT:
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359 case XD_INT_RESET:
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360 case XD_LO_LINK:
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361 break;
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362 case XD_OPAQUE_DATA_PTR:
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363 {
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364 EMACS_INT count = desc[pos].data1;
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365 if (XD_IS_INDIRECT (count))
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366 count = pdump_get_indirect_count (count, desc, data);
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367
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368 pdump_add_entry (&pdump_opaque_data_list,
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369 *(void **)rdata,
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370 count,
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371 1,
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372 0);
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373 break;
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374 }
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375 case XD_C_STRING:
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376 {
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377 const char *str = *(const char **)rdata;
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378 if (str)
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379 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1, 0);
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380 break;
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381 }
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382 case XD_DOC_STRING:
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383 {
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384 const char *str = *(const char **)rdata;
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385 if ((EMACS_INT)str > 0)
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386 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1, 0);
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387 break;
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388 }
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389 case XD_LISP_OBJECT:
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390 {
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391 const Lisp_Object *pobj = (const Lisp_Object *)rdata;
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392
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393 assert (desc[pos].data1 == 0);
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394
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395 backtrace[me].offset = (const char *)pobj - (const char *)data;
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396 pdump_register_object (*pobj);
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397 break;
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398 }
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399 case XD_LISP_OBJECT_ARRAY:
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400 {
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401 int i;
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402 EMACS_INT count = desc[pos].data1;
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403 if (XD_IS_INDIRECT (count))
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404 count = pdump_get_indirect_count (count, desc, data);
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405
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406 for (i = 0; i < count; i++)
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407 {
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|
|
408 const Lisp_Object *pobj = ((const Lisp_Object *)rdata) + i;
|
|
|
409 Lisp_Object dobj = *pobj;
|
|
|
410
|
|
|
411 backtrace[me].offset = (const char *)pobj - (const char *)data;
|
|
|
412 pdump_register_object (dobj);
|
|
|
413 }
|
|
|
414 break;
|
|
|
415 }
|
|
|
416 case XD_STRUCT_PTR:
|
|
|
417 {
|
|
|
418 EMACS_INT count = desc[pos].data1;
|
|
|
419 const struct struct_description *sdesc = desc[pos].data2;
|
|
|
420 const char *dobj = *(const char **)rdata;
|
|
|
421 if (dobj)
|
|
|
422 {
|
|
|
423 if (XD_IS_INDIRECT (count))
|
|
|
424 count = pdump_get_indirect_count (count, desc, data);
|
|
|
425
|
|
|
426 pdump_register_struct (dobj, sdesc, count);
|
|
|
427 }
|
|
|
428 break;
|
|
|
429 }
|
|
|
430 default:
|
|
|
431 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
432 pdump_backtrace ();
|
|
|
433 abort ();
|
|
|
434 };
|
|
|
435 }
|
|
|
436 }
|
|
|
437
|
|
|
438 static void
|
|
|
439 pdump_register_object (Lisp_Object obj)
|
|
|
440 {
|
|
|
441 struct lrecord_header *objh;
|
|
|
442
|
|
|
443 if (!POINTER_TYPE_P (XTYPE (obj)))
|
|
|
444 return;
|
|
|
445
|
|
|
446 objh = XRECORD_LHEADER (obj);
|
|
|
447 if (!objh)
|
|
|
448 return;
|
|
|
449
|
|
|
450 if (pdump_get_entry (objh))
|
|
|
451 return;
|
|
|
452
|
|
|
453 if (LHEADER_IMPLEMENTATION (objh)->description)
|
|
|
454 {
|
|
|
455 int me = depth++;
|
|
|
456 if (me>65536)
|
|
|
457 {
|
|
|
458 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
459 abort ();
|
|
|
460 }
|
|
|
461 backtrace[me].obj = objh;
|
|
|
462 backtrace[me].position = 0;
|
|
|
463 backtrace[me].offset = 0;
|
|
|
464
|
|
|
465 pdump_add_entry (pdump_object_table + objh->type,
|
|
|
466 objh,
|
|
|
467 LHEADER_IMPLEMENTATION (objh)->static_size ?
|
|
|
468 LHEADER_IMPLEMENTATION (objh)->static_size :
|
|
|
469 LHEADER_IMPLEMENTATION (objh)->size_in_bytes_method (objh),
|
|
|
470 1,
|
|
|
471 1);
|
|
|
472 pdump_register_sub (objh,
|
|
|
473 LHEADER_IMPLEMENTATION (objh)->description,
|
|
|
474 me);
|
|
|
475 --depth;
|
|
|
476 }
|
|
|
477 else
|
|
|
478 {
|
|
|
479 pdump_alert_undump_object[objh->type]++;
|
|
|
480 stderr_out ("Undumpable object type : %s\n", LHEADER_IMPLEMENTATION (objh)->name);
|
|
|
481 pdump_backtrace ();
|
|
|
482 }
|
|
|
483 }
|
|
|
484
|
|
|
485 static void
|
|
|
486 pdump_register_struct (const void *data, const struct struct_description *sdesc, int count)
|
|
|
487 {
|
|
|
488 if (data && !pdump_get_entry (data))
|
|
|
489 {
|
|
|
490 int me = depth++;
|
|
|
491 int i;
|
|
|
492 if (me>65536)
|
|
|
493 {
|
|
|
494 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
495 abort ();
|
|
|
496 }
|
|
|
497 backtrace[me].obj = 0;
|
|
|
498 backtrace[me].position = 0;
|
|
|
499 backtrace[me].offset = 0;
|
|
|
500
|
|
|
501 pdump_add_entry (pdump_get_entry_list (sdesc),
|
|
|
502 data,
|
|
|
503 sdesc->size,
|
|
|
504 count,
|
|
|
505 0);
|
|
|
506 for (i=0; i<count; i++)
|
|
|
507 {
|
|
|
508 pdump_register_sub (((char *)data) + sdesc->size*i,
|
|
|
509 sdesc->description,
|
|
|
510 me);
|
|
|
511 }
|
|
|
512 --depth;
|
|
|
513 }
|
|
|
514 }
|
|
|
515
|
|
|
516 static void
|
|
|
517 pdump_dump_data (pdump_entry_list_elmt *elmt, const struct lrecord_description *desc)
|
|
|
518 {
|
|
|
519 size_t size = elmt->size;
|
|
|
520 int count = elmt->count;
|
|
|
521 if (desc)
|
|
|
522 {
|
|
|
523 int pos, i;
|
|
|
524 memcpy (pdump_buf, elmt->obj, size*count);
|
|
|
525
|
|
|
526 for (i=0; i<count; i++)
|
|
|
527 {
|
|
|
528 char *cur = ((char *)pdump_buf) + i*size;
|
|
|
529 restart:
|
|
|
530 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
531 {
|
|
|
532 void *rdata = cur + desc[pos].offset;
|
|
|
533 switch (desc[pos].type)
|
|
|
534 {
|
|
|
535 case XD_SPECIFIER_END:
|
|
|
536 desc = ((const Lisp_Specifier *)(elmt->obj))->methods->extra_description;
|
|
|
537 goto restart;
|
|
|
538 case XD_SIZE_T:
|
|
|
539 case XD_INT:
|
|
|
540 case XD_LONG:
|
|
|
541 case XD_BYTECOUNT:
|
|
|
542 break;
|
|
|
543 case XD_INT_RESET:
|
|
|
544 {
|
|
|
545 EMACS_INT val = desc[pos].data1;
|
|
|
546 if (XD_IS_INDIRECT (val))
|
|
|
547 val = pdump_get_indirect_count (val, desc, elmt->obj);
|
|
|
548 *(int *)rdata = val;
|
|
|
549 break;
|
|
|
550 }
|
|
|
551 case XD_OPAQUE_DATA_PTR:
|
|
|
552 case XD_C_STRING:
|
|
|
553 case XD_STRUCT_PTR:
|
|
|
554 {
|
|
|
555 void *ptr = *(void **)rdata;
|
|
|
556 if (ptr)
|
|
|
557 *(EMACS_INT *)rdata = pdump_get_entry (ptr)->save_offset;
|
|
|
558 break;
|
|
|
559 }
|
|
|
560 case XD_LO_LINK:
|
|
|
561 {
|
|
|
562 Lisp_Object obj = *(Lisp_Object *)rdata;
|
|
|
563 pdump_entry_list_elmt *elmt1;
|
|
|
564 for (;;)
|
|
|
565 {
|
|
|
566 elmt1 = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
567 if (elmt1)
|
|
|
568 break;
|
|
|
569 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
570 }
|
|
|
571 *(EMACS_INT *)rdata = elmt1->save_offset;
|
|
|
572 break;
|
|
|
573 }
|
|
|
574 case XD_LISP_OBJECT:
|
|
|
575 {
|
|
|
576 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
577
|
|
|
578 assert (desc[pos].data1 == 0);
|
|
|
579
|
|
|
580 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
581 *(EMACS_INT *)pobj =
|
|
|
582 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
583 break;
|
|
|
584 }
|
|
|
585 case XD_LISP_OBJECT_ARRAY:
|
|
|
586 {
|
|
|
587 EMACS_INT num = desc[pos].data1;
|
|
|
588 int j;
|
|
|
589 if (XD_IS_INDIRECT (num))
|
|
|
590 num = pdump_get_indirect_count (num, desc, elmt->obj);
|
|
|
591
|
|
|
592 for (j=0; j<num; j++)
|
|
|
593 {
|
|
|
594 Lisp_Object *pobj = ((Lisp_Object *)rdata) + j;
|
|
|
595 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
596 *(EMACS_INT *)pobj =
|
|
|
597 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
598 }
|
|
|
599 break;
|
|
|
600 }
|
|
|
601 case XD_DOC_STRING:
|
|
|
602 {
|
|
|
603 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
604 if (str > 0)
|
|
|
605 *(EMACS_INT *)rdata = pdump_get_entry ((void *)str)->save_offset;
|
|
|
606 break;
|
|
|
607 }
|
|
|
608 default:
|
|
|
609 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
610 abort ();
|
|
|
611 };
|
|
|
612 }
|
|
|
613 }
|
|
|
614 }
|
|
|
615 write (pdump_fd, desc ? pdump_buf : elmt->obj, size*count);
|
|
|
616 if (elmt->is_lrecord && ((size*count) & 3))
|
|
|
617 write (pdump_fd, "\0\0\0", 4-((size*count) & 3));
|
|
|
618 }
|
|
|
619
|
|
|
620 static void
|
|
|
621 pdump_reloc_one (void *data, EMACS_INT delta, const struct lrecord_description *desc)
|
|
|
622 {
|
|
|
623 int pos;
|
|
|
624
|
|
|
625 restart:
|
|
|
626 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
627 {
|
|
|
628 void *rdata = (char *)data + desc[pos].offset;
|
|
|
629 switch (desc[pos].type)
|
|
|
630 {
|
|
|
631 case XD_SPECIFIER_END:
|
|
|
632 pos = 0;
|
|
|
633 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
634 goto restart;
|
|
|
635 case XD_SIZE_T:
|
|
|
636 case XD_INT:
|
|
|
637 case XD_LONG:
|
|
|
638 case XD_BYTECOUNT:
|
|
|
639 case XD_INT_RESET:
|
|
|
640 break;
|
|
|
641 case XD_OPAQUE_DATA_PTR:
|
|
|
642 case XD_C_STRING:
|
|
|
643 case XD_STRUCT_PTR:
|
|
|
644 case XD_LO_LINK:
|
|
|
645 {
|
|
|
646 EMACS_INT ptr = *(EMACS_INT *)rdata;
|
|
|
647 if (ptr)
|
|
|
648 *(EMACS_INT *)rdata = ptr+delta;
|
|
|
649 break;
|
|
|
650 }
|
|
|
651 case XD_LISP_OBJECT:
|
|
|
652 {
|
|
|
653 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
654
|
|
|
655 assert (desc[pos].data1 == 0);
|
|
|
656
|
|
|
657 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
658 && ! EQ (*pobj, Qnull_pointer))
|
|
|
659 XSETOBJ (*pobj, (char *) XPNTR (*pobj) + delta);
|
|
|
660
|
|
|
661 break;
|
|
|
662 }
|
|
|
663 case XD_LISP_OBJECT_ARRAY:
|
|
|
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, (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
|
|
446
|
895 flush_all_buffer_local_cache ();
|
|
|
896
|
|
442
|
897 /* These appear in a DEFVAR_LISP, which does a staticpro() */
|
|
|
898 t_console = Vterminal_console;
|
|
|
899 t_frame = Vterminal_frame;
|
|
|
900 t_device = Vterminal_device;
|
|
|
901
|
|
|
902 Vterminal_console = Qnil;
|
|
|
903 Vterminal_frame = Qnil;
|
|
|
904 Vterminal_device = Qnil;
|
|
|
905
|
|
|
906 pdump_hash = xnew_array_and_zero (pdump_entry_list_elmt *, PDUMP_HASHSIZE);
|
|
|
907
|
|
|
908 for (i=0; i<lrecord_type_count; i++)
|
|
|
909 {
|
|
|
910 pdump_object_table[i].first = 0;
|
|
|
911 pdump_object_table[i].align = 8;
|
|
|
912 pdump_object_table[i].count = 0;
|
|
|
913 pdump_alert_undump_object[i] = 0;
|
|
|
914 }
|
|
|
915 pdump_struct_table.count = 0;
|
|
|
916 pdump_struct_table.size = -1;
|
|
|
917
|
|
|
918 pdump_opaque_data_list.first = 0;
|
|
|
919 pdump_opaque_data_list.align = 8;
|
|
|
920 pdump_opaque_data_list.count = 0;
|
|
|
921 depth = 0;
|
|
|
922
|
|
|
923 for (i=0; i<staticidx; i++)
|
|
|
924 pdump_register_object (*staticvec[i]);
|
|
|
925 for (i=0; i<pdump_wireidx; i++)
|
|
|
926 pdump_register_object (*pdump_wirevec[i]);
|
|
|
927
|
|
|
928 none = 1;
|
|
|
929 for (i=0; i<lrecord_type_count; i++)
|
|
|
930 if (pdump_alert_undump_object[i])
|
|
|
931 {
|
|
|
932 if (none)
|
|
|
933 printf ("Undumpable types list :\n");
|
|
|
934 none = 0;
|
|
|
935 printf (" - %s (%d)\n", lrecord_implementations_table[i]->name, pdump_alert_undump_object[i]);
|
|
|
936 }
|
|
|
937 if (!none)
|
|
|
938 return;
|
|
|
939
|
|
|
940 for (i=0; i<dumpstructidx; i++)
|
|
|
941 pdump_register_struct (*(void **)(dumpstructvec[i].data), dumpstructvec[i].desc, 1);
|
|
|
942
|
|
|
943 memcpy (hd.signature, DUMP_SIGNATURE, DUMP_SIGNATURE_LEN);
|
|
|
944 hd.id = dump_id;
|
|
|
945 hd.reloc_address = 0;
|
|
|
946 hd.nb_staticpro = staticidx;
|
|
|
947 hd.nb_structdmp = dumpstructidx;
|
|
|
948 hd.nb_opaquedmp = dumpopaqueidx;
|
|
|
949
|
|
|
950 cur_offset = 256;
|
|
|
951 max_size = 0;
|
|
|
952
|
|
|
953 pdump_scan_by_alignment (pdump_allocate_offset);
|
|
|
954
|
|
|
955 pdump_buf = xmalloc (max_size);
|
|
|
956 /* Avoid use of the `open' macro. We want the real function. */
|
|
|
957 #undef open
|
|
|
958 pdump_fd = open (EMACS_PROGNAME ".dmp",
|
|
|
959 O_WRONLY | O_CREAT | O_TRUNC | OPEN_BINARY, 0666);
|
|
|
960 hd.stab_offset = (cur_offset + 3) & ~3;
|
|
|
961
|
|
|
962 write (pdump_fd, &hd, sizeof (hd));
|
|
|
963 lseek (pdump_fd, 256, SEEK_SET);
|
|
|
964
|
|
|
965 pdump_scan_by_alignment (pdump_dump_data);
|
|
|
966
|
|
|
967 lseek (pdump_fd, hd.stab_offset, SEEK_SET);
|
|
|
968
|
|
|
969 pdump_dump_staticvec ();
|
|
|
970 pdump_dump_structvec ();
|
|
|
971 pdump_dump_opaquevec ();
|
|
|
972 pdump_dump_itable ();
|
|
|
973 pdump_dump_rtables ();
|
|
|
974 pdump_dump_wired ();
|
|
|
975
|
|
|
976 close (pdump_fd);
|
|
|
977 free (pdump_buf);
|
|
|
978
|
|
|
979 free (pdump_hash);
|
|
|
980
|
|
|
981 Vterminal_console = t_console;
|
|
|
982 Vterminal_frame = t_frame;
|
|
|
983 Vterminal_device = t_device;
|
|
|
984 }
|
|
|
985
|
|
|
986 static int pdump_load_check (void)
|
|
|
987 {
|
|
|
988 return (!memcmp (((dump_header *)pdump_start)->signature, DUMP_SIGNATURE, DUMP_SIGNATURE_LEN)
|
|
|
989 && ((dump_header *)pdump_start)->id == dump_id);
|
|
|
990 }
|
|
|
991
|
|
|
992 static int pdump_load_finish (void)
|
|
|
993 {
|
|
|
994 int i;
|
|
|
995 char *p;
|
|
|
996 EMACS_INT delta;
|
|
|
997 EMACS_INT count;
|
|
|
998
|
|
|
999 pdump_end = pdump_start + pdump_length;
|
|
|
1000
|
|
|
1001 #define PDUMP_READ(p, type) (p = (char*) (((type *) p) + 1), *((type *) p - 1))
|
|
|
1002
|
|
|
1003 staticidx = ((dump_header *)(pdump_start))->nb_staticpro;
|
|
|
1004 delta = ((EMACS_INT)pdump_start) - ((dump_header *)pdump_start)->reloc_address;
|
|
|
1005 p = pdump_start + ((dump_header *)pdump_start)->stab_offset;
|
|
|
1006
|
|
|
1007 /* Put back the staticvec in place */
|
|
|
1008 memcpy (staticvec, p, staticidx*sizeof (Lisp_Object *));
|
|
|
1009 p += staticidx*sizeof (Lisp_Object *);
|
|
|
1010 for (i=0; i<staticidx; i++)
|
|
|
1011 {
|
|
|
1012 Lisp_Object obj = PDUMP_READ (p, Lisp_Object);
|
|
|
1013 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
1014 XSETOBJ (obj, (char *) XPNTR (obj) + delta);
|
|
|
1015 *staticvec[i] = obj;
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 /* Put back the dumpstructs */
|
|
|
1019 for (i=0; i<((dump_header *)pdump_start)->nb_structdmp; i++)
|
|
|
1020 {
|
|
|
1021 void **adr = PDUMP_READ (p, void **);
|
|
|
1022 *adr = (void *) (PDUMP_READ (p, char *) + delta);
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 /* Put back the opaques */
|
|
|
1026 for (i=0; i<((dump_header *)pdump_start)->nb_opaquedmp; i++)
|
|
|
1027 {
|
|
|
1028 struct pdump_dumpopaqueinfo di = PDUMP_READ (p, struct pdump_dumpopaqueinfo);
|
|
|
1029 memcpy (di.data, p, di.size);
|
|
|
1030 p += di.size;
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 /* Put back the lrecord_implementations_table */
|
|
|
1034 /* The (void *) cast is there to make Ben happy. */
|
|
|
1035 memcpy ((void *) lrecord_implementations_table, p, lrecord_type_count*sizeof (lrecord_implementations_table[0]));
|
|
|
1036 p += lrecord_type_count*sizeof (lrecord_implementations_table[0]);
|
|
|
1037
|
|
|
1038 /* Reinitialize lrecord_markers from lrecord_implementations_table */
|
|
|
1039 for (i=0; i < lrecord_type_count; i++)
|
|
|
1040 if (lrecord_implementations_table[i])
|
|
|
1041 lrecord_markers[i] = lrecord_implementations_table[i]->marker;
|
|
|
1042
|
|
|
1043 /* Do the relocations */
|
|
|
1044 pdump_rt_list = p;
|
|
|
1045 count = 2;
|
|
|
1046 for (;;)
|
|
|
1047 {
|
|
|
1048 pdump_reloc_table rt = PDUMP_READ (p, pdump_reloc_table);
|
|
|
1049 if (rt.desc)
|
|
|
1050 {
|
|
|
1051 for (i=0; i < rt.count; i++)
|
|
|
1052 {
|
|
|
1053 char *adr = delta + *(char **)p;
|
|
|
1054 *(char **)p = adr;
|
|
|
1055 pdump_reloc_one (adr, delta, rt.desc);
|
|
|
1056 p += sizeof (char *);
|
|
|
1057 }
|
|
|
1058 } else
|
|
|
1059 if (!(--count))
|
|
|
1060 break;
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 /* Put the pdump_wire variables in place */
|
|
|
1064 count = PDUMP_READ (p, EMACS_INT);
|
|
|
1065
|
|
|
1066 for (i=0; i<count; i++)
|
|
|
1067 {
|
|
|
1068 Lisp_Object *var = PDUMP_READ (p, Lisp_Object *);
|
|
|
1069 Lisp_Object obj = PDUMP_READ (p, Lisp_Object);
|
|
|
1070
|
|
|
1071 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
1072 XSETOBJ (obj, (char *) XPNTR (obj) + delta);
|
|
|
1073
|
|
|
1074 *var = obj;
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 /* Final cleanups */
|
|
|
1078 /* reorganize hash tables */
|
|
|
1079 p = pdump_rt_list;
|
|
|
1080 for (;;)
|
|
|
1081 {
|
|
|
1082 pdump_reloc_table rt = PDUMP_READ (p, pdump_reloc_table);
|
|
|
1083 if (!rt.desc)
|
|
|
1084 break;
|
|
|
1085 if (rt.desc == hash_table_description)
|
|
|
1086 {
|
|
|
1087 for (i=0; i < rt.count; i++)
|
|
|
1088 pdump_reorganize_hash_table (PDUMP_READ (p, Lisp_Object));
|
|
|
1089 break;
|
|
|
1090 } else
|
|
|
1091 p += sizeof (Lisp_Object) * rt.count;
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 return 1;
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 #ifdef WIN32_NATIVE
|
|
|
1098 /* Free the mapped file if we decide we don't want it after all */
|
|
|
1099 static void pdump_file_unmap(void)
|
|
|
1100 {
|
|
|
1101 UnmapViewOfFile (pdump_start);
|
|
|
1102 CloseHandle (pdump_hFile);
|
|
|
1103 CloseHandle (pdump_hMap);
|
|
|
1104 }
|
|
|
1105
|
|
|
1106 static int pdump_file_get(const char *path)
|
|
|
1107 {
|
|
|
1108
|
|
|
1109 pdump_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 (pdump_hFile == INVALID_HANDLE_VALUE)
|
|
|
1117 return 0;
|
|
|
1118
|
|
|
1119 pdump_length = GetFileSize (pdump_hFile, NULL);
|
|
|
1120 pdump_hMap = CreateFileMapping (pdump_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 (pdump_hMap == INVALID_HANDLE_VALUE)
|
|
|
1127 return 0;
|
|
|
1128
|
|
|
1129 pdump_start = MapViewOfFile (pdump_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 /* pdump_resource_free is called (via the pdump_free pointer) to release
|
|
|
1139 any resources allocated by pdump_resource_get. Since the Windows API
|
|
|
1140 specs specifically state that you don't need to (and shouldn't) free the
|
|
|
1141 resources allocated by FindResource, LoadResource, and LockResource this
|
|
|
1142 routine does nothing. */
|
|
|
1143 static void pdump_resource_free (void)
|
|
|
1144 {
|
|
|
1145 }
|
|
|
1146
|
|
|
1147 static int pdump_resource_get (void)
|
|
|
1148 {
|
|
|
1149 HRSRC hRes; /* Handle to dump resource */
|
|
|
1150 HRSRC hResLoad; /* Handle to loaded dump resource */
|
|
|
1151
|
|
|
1152 /* See Q126630 which describes how Windows NT and 95 trap writes to
|
|
|
1153 resource sections and duplicate the page to allow the write to proceed.
|
|
|
1154 It also describes how to make the resource section read/write (and hence
|
|
|
1155 private to each process). Doing this avoids the exceptions and related
|
|
|
1156 overhead, but causes the resource section to be private to each process
|
|
|
1157 that is running XEmacs. Since the resource section contains little
|
|
|
1158 other than the dumped data, which should be private to each process, we
|
|
|
1159 make the whole resource section read/write so we don't have to copy it. */
|
|
|
1160
|
|
|
1161 hRes = FindResource (NULL, MAKEINTRESOURCE(101), "DUMP");
|
|
|
1162 if (hRes == NULL)
|
|
|
1163 return 0;
|
|
|
1164
|
|
|
1165 /* Found it, use the data in the resource */
|
|
|
1166 hResLoad = LoadResource (NULL, hRes);
|
|
|
1167 if (hResLoad == NULL)
|
|
|
1168 return 0;
|
|
|
1169
|
|
|
1170 pdump_start = LockResource (hResLoad);
|
|
|
1171 if (pdump_start == NULL)
|
|
|
1172 return 0;
|
|
|
1173
|
|
|
1174 pdump_free = pdump_resource_free;
|
|
|
1175 pdump_length = SizeofResource (NULL, hRes);
|
|
|
1176 if (pdump_length <= sizeof(dump_header))
|
|
|
1177 {
|
|
|
1178 pdump_start = 0;
|
|
|
1179 return 0;
|
|
|
1180 }
|
|
|
1181
|
|
|
1182 return 1;
|
|
|
1183 }
|
|
|
1184
|
|
|
1185 #else /* !WIN32_NATIVE */
|
|
|
1186
|
|
|
1187 static void *pdump_mallocadr;
|
|
|
1188
|
|
|
1189 static void pdump_file_free(void)
|
|
|
1190 {
|
|
|
1191 xfree (pdump_mallocadr);
|
|
|
1192 }
|
|
|
1193
|
|
|
1194 #ifdef HAVE_MMAP
|
|
|
1195 static void pdump_file_unmap(void)
|
|
|
1196 {
|
|
|
1197 munmap (pdump_start, pdump_length);
|
|
|
1198 }
|
|
|
1199 #endif
|
|
|
1200
|
|
|
1201 static int pdump_file_get(const char *path)
|
|
|
1202 {
|
|
|
1203 int fd = open (path, O_RDONLY | OPEN_BINARY);
|
|
|
1204 if (fd<0)
|
|
|
1205 return 0;
|
|
|
1206
|
|
|
1207 pdump_length = lseek (fd, 0, SEEK_END);
|
|
|
1208 if (pdump_length < sizeof (dump_header))
|
|
|
1209 {
|
|
|
1210 close (fd);
|
|
|
1211 return 0;
|
|
|
1212 }
|
|
|
1213
|
|
|
1214 lseek (fd, 0, SEEK_SET);
|
|
|
1215
|
|
|
1216 #ifdef HAVE_MMAP
|
|
|
1217 pdump_start = (char *) mmap (0, pdump_length, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
|
|
|
1218 if (pdump_start != MAP_FAILED)
|
|
|
1219 {
|
|
|
1220 pdump_free = pdump_file_unmap;
|
|
|
1221 close (fd);
|
|
|
1222 return 1;
|
|
|
1223 }
|
|
|
1224 #endif
|
|
|
1225
|
|
|
1226 pdump_mallocadr = xmalloc(pdump_length+255);
|
|
|
1227 pdump_free = pdump_file_free;
|
|
|
1228 pdump_start = (char *)((255 + (unsigned long)pdump_mallocadr) & ~255);
|
|
446
|
1229 read (fd, pdump_start, pdump_length);
|
|
442
|
1230
|
|
446
|
1231 close (fd);
|
|
442
|
1232 return 1;
|
|
|
1233 }
|
|
|
1234 #endif /* !WIN32_NATIVE */
|
|
|
1235
|
|
|
1236
|
|
|
1237 static int pdump_file_try(char *exe_path)
|
|
|
1238 {
|
|
|
1239 char *w;
|
|
|
1240
|
|
|
1241 w = exe_path + strlen(exe_path);
|
|
|
1242 do
|
|
|
1243 {
|
|
|
1244 sprintf (w, "-%s-%08x.dmp", EMACS_VERSION, 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, "-%08x.dmp", dump_id);
|
|
|
1253 if (pdump_file_get (exe_path))
|
|
|
1254 {
|
|
|
1255 if (pdump_load_check ())
|
|
|
1256 return 1;
|
|
|
1257 pdump_free();
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 sprintf (w, ".dmp");
|
|
|
1261 if (pdump_file_get (exe_path))
|
|
|
1262 {
|
|
|
1263 if (pdump_load_check ())
|
|
|
1264 return 1;
|
|
|
1265 pdump_free();
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 do
|
|
|
1269 w--;
|
|
|
1270 while (w>exe_path && !IS_DIRECTORY_SEP (*w) && (*w != '-') && (*w != '.'));
|
|
|
1271 }
|
|
|
1272 while (w>exe_path && !IS_DIRECTORY_SEP (*w));
|
|
|
1273 return 0;
|
|
|
1274 }
|
|
|
1275
|
|
|
1276 int pdump_load(const char *argv0)
|
|
|
1277 {
|
|
|
1278 char exe_path[PATH_MAX];
|
|
|
1279 #ifdef WIN32_NATIVE
|
|
|
1280 GetModuleFileName (NULL, exe_path, PATH_MAX);
|
|
|
1281 #else /* !WIN32_NATIVE */
|
|
|
1282 char *w;
|
|
|
1283 const char *dir, *p;
|
|
|
1284
|
|
|
1285 dir = argv0;
|
|
|
1286 if (dir[0] == '-')
|
|
|
1287 {
|
|
|
1288 /* XEmacs as a login shell, oh goody! */
|
|
|
1289 dir = getenv("SHELL");
|
|
|
1290 }
|
|
|
1291
|
|
|
1292 p = dir + strlen(dir);
|
|
|
1293 while (p != dir && !IS_ANY_SEP (p[-1])) p--;
|
|
|
1294
|
|
|
1295 if (p != dir)
|
|
|
1296 {
|
|
|
1297 /* invocation-name includes a directory component -- presumably it
|
|
|
1298 is relative to cwd, not $PATH */
|
|
|
1299 strcpy (exe_path, dir);
|
|
|
1300 }
|
|
|
1301 else
|
|
|
1302 {
|
|
|
1303 const char *path = getenv ("PATH");
|
|
|
1304 const char *name = p;
|
|
|
1305 for (;;)
|
|
|
1306 {
|
|
|
1307 p = path;
|
|
|
1308 while (*p && *p != SEPCHAR)
|
|
|
1309 p++;
|
|
|
1310 if (p == path)
|
|
|
1311 {
|
|
|
1312 exe_path[0] = '.';
|
|
|
1313 w = exe_path + 1;
|
|
|
1314 }
|
|
|
1315 else
|
|
|
1316 {
|
|
|
1317 memcpy (exe_path, path, p - path);
|
|
|
1318 w = exe_path + (p - path);
|
|
|
1319 }
|
|
|
1320 if (!IS_DIRECTORY_SEP (w[-1]))
|
|
|
1321 {
|
|
|
1322 *w++ = '/';
|
|
|
1323 }
|
|
|
1324 strcpy(w, name);
|
|
|
1325
|
|
|
1326 /* ### #$%$#^$^@%$^#%@$ ! */
|
|
|
1327 #ifdef access
|
|
|
1328 #undef access
|
|
|
1329 #endif
|
|
|
1330
|
|
|
1331 if (!access (exe_path, X_OK))
|
|
|
1332 break;
|
|
|
1333 if (!*p)
|
|
|
1334 {
|
|
|
1335 /* Oh well, let's have some kind of default */
|
|
|
1336 sprintf (exe_path, "./%s", name);
|
|
|
1337 break;
|
|
|
1338 }
|
|
|
1339 path = p+1;
|
|
|
1340 }
|
|
|
1341 }
|
|
|
1342 #endif /* WIN32_NATIVE */
|
|
|
1343
|
|
|
1344 if (pdump_file_try (exe_path))
|
|
|
1345 {
|
|
|
1346 pdump_load_finish ();
|
|
|
1347 return 1;
|
|
|
1348 }
|
|
|
1349
|
|
|
1350 #ifdef WIN32_NATIVE
|
|
|
1351 if (pdump_resource_get ())
|
|
|
1352 {
|
|
|
1353 if (pdump_load_check ())
|
|
|
1354 {
|
|
|
1355 pdump_load_finish ();
|
|
|
1356 return 1;
|
|
|
1357 }
|
|
|
1358 pdump_free ();
|
|
|
1359 }
|
|
|
1360 #endif
|
|
|
1361
|
|
|
1362 return 0;
|
|
|
1363 }
|
