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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 "elhash.h"
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29 #include "sysfile.h"
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30 #include "console-stream.h"
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31 #include "dumper.h"
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32
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33 #ifdef WIN32_NATIVE
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34 #include "nt.h"
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35 #else
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36 #ifdef HAVE_MMAP
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37 #include <sys/mman.h>
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38 #endif
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39 #endif
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40
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41 #ifndef SEPCHAR
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42 #define SEPCHAR ':'
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43 #endif
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44
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45 typedef struct
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46 {
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452
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47 void *varaddress;
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48 size_t size;
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49 } pdump_opaque;
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50
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51 typedef struct
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52 {
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53 Dynarr_declare (pdump_opaque);
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54 } pdump_opaque_dynarr;
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55
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56 typedef struct
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57 {
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58 void **ptraddress;
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59 const struct struct_description *desc;
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60 } pdump_root_struct_ptr;
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61
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62 typedef struct
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63 {
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64 Dynarr_declare (pdump_root_struct_ptr);
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65 } pdump_root_struct_ptr_dynarr;
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66
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67 static pdump_opaque_dynarr *pdump_opaques;
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68 static pdump_root_struct_ptr_dynarr *pdump_root_struct_ptrs;
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69 static Lisp_Object_ptr_dynarr *pdump_root_objects;
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70 static Lisp_Object_ptr_dynarr *pdump_weak_object_chains;
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71
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72 /* Mark SIZE bytes at non-heap address VARADDRESS for dumping as is,
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73 without any bit-twiddling. */
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74 void
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75 dump_add_opaque (void *varaddress, size_t size)
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76 {
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77 pdump_opaque info;
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78 info.varaddress = varaddress;
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79 info.size = size;
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80 if (pdump_opaques == NULL)
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81 pdump_opaques = Dynarr_new (pdump_opaque);
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82 Dynarr_add (pdump_opaques, info);
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83 }
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84
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85 /* Mark the struct described by DESC and pointed to by the pointer at
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86 non-heap address VARADDRESS for dumping.
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87 All the objects reachable from this pointer will also be dumped. */
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88 void
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89 dump_add_root_struct_ptr (void *ptraddress, const struct struct_description *desc)
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90 {
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91 pdump_root_struct_ptr info;
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92 info.ptraddress = (void **) ptraddress;
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93 info.desc = desc;
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94 if (pdump_root_struct_ptrs == NULL)
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95 pdump_root_struct_ptrs = Dynarr_new (pdump_root_struct_ptr);
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96 Dynarr_add (pdump_root_struct_ptrs, info);
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97 }
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98
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99 /* Mark the Lisp_Object at non-heap address VARADDRESS for dumping.
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100 All the objects reachable from this var will also be dumped. */
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101 void
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102 dump_add_root_object (Lisp_Object *varaddress)
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103 {
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104 if (pdump_root_objects == NULL)
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105 pdump_root_objects = Dynarr_new2 (Lisp_Object_ptr_dynarr, Lisp_Object *);
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106 Dynarr_add (pdump_root_objects, varaddress);
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107 }
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108
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109 /* Mark the list pointed to by the Lisp_Object at VARADDRESS for dumping. */
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110 void
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111 dump_add_weak_object_chain (Lisp_Object *varaddress)
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112 {
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113 if (pdump_weak_object_chains == NULL)
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114 pdump_weak_object_chains = Dynarr_new2 (Lisp_Object_ptr_dynarr, Lisp_Object *);
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115 Dynarr_add (pdump_weak_object_chains, varaddress);
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116 }
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117
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118
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119 typedef struct
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120 {
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442
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121 const struct lrecord_description *desc;
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122 int count;
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123 } pdump_reloc_table;
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124
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125 static char *pdump_rt_list = 0;
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126
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127 void
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128 pdump_objects_unmark (void)
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129 {
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130 int i;
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131 char *p = pdump_rt_list;
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132 if (p)
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133 for (;;)
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134 {
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135 pdump_reloc_table *rt = (pdump_reloc_table *)p;
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136 p += sizeof (pdump_reloc_table);
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137 if (rt->desc)
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138 {
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139 for (i=0; i<rt->count; i++)
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140 {
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141 struct lrecord_header *lh = * (struct lrecord_header **) p;
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142 if (! C_READONLY_RECORD_HEADER_P (lh))
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143 UNMARK_RECORD_HEADER (lh);
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144 p += sizeof (EMACS_INT);
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145 }
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146 } else
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147 break;
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148 }
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149 }
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150
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151
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152 /* The structure of the file
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153 *
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154 * 0 - header
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155 * 256 - dumped objects
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452
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156 * stab_offset - nb_root_struct_ptrs*pair(void *, adr) for pointers to structures
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157 * - nb_opaques*pair(void *, size) for raw bits to restore
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442
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158 * - relocation table
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159 * - wired variable address/value couples with the count preceding the list
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160 */
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161
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162
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452
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163 #define PDUMP_SIGNATURE "XEmacsDP"
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164 #define PDUMP_SIGNATURE_LEN (sizeof (PDUMP_SIGNATURE) - 1)
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442
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165
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166 typedef struct
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167 {
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452
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168 char signature[PDUMP_SIGNATURE_LEN];
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442
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169 unsigned int id;
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170 EMACS_UINT stab_offset;
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171 EMACS_UINT reloc_address;
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452
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172 int nb_root_struct_ptrs;
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173 int nb_opaques;
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174 } pdump_header;
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442
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175
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176 char *pdump_start, *pdump_end;
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177 static size_t pdump_length;
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178
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179 #ifdef WIN32_NATIVE
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452
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180 /* Handle for the dump file */
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442
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181 HANDLE pdump_hFile = INVALID_HANDLE_VALUE;
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452
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182 /* Handle for the file mapping object for the dump file */
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442
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183 HANDLE pdump_hMap = INVALID_HANDLE_VALUE;
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184 #endif
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185
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186 void (*pdump_free) (void);
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187
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452
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188 static const unsigned char pdump_align_table[256] =
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442
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189 {
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190 8, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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191 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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192 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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193 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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194 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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195 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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196 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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197 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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198 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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199 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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200 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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201 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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202 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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203 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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204 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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205 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0
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206 };
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207
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208 typedef struct pdump_entry_list_elmt
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209 {
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210 struct pdump_entry_list_elmt *next;
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211 const void *obj;
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212 size_t size;
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213 int count;
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214 int is_lrecord;
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215 EMACS_INT save_offset;
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216 } pdump_entry_list_elmt;
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217
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218 typedef struct
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219 {
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220 pdump_entry_list_elmt *first;
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221 int align;
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222 int count;
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223 } pdump_entry_list;
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224
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225 typedef struct pdump_struct_list_elmt
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226 {
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227 pdump_entry_list list;
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228 const struct struct_description *sdesc;
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229 } pdump_struct_list_elmt;
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230
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231 typedef struct
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232 {
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233 pdump_struct_list_elmt *list;
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234 int count;
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235 int size;
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236 } pdump_struct_list;
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237
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238 static pdump_entry_list pdump_object_table[256];
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239 static pdump_entry_list pdump_opaque_data_list;
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240 static pdump_struct_list pdump_struct_table;
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241
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242 static int pdump_alert_undump_object[256];
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243
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244 static unsigned long cur_offset;
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245 static size_t max_size;
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246 static int pdump_fd;
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247 static void *pdump_buf;
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248
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249 #define PDUMP_HASHSIZE 200001
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250
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251 static pdump_entry_list_elmt **pdump_hash;
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252
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253 /* Since most pointers are eight bytes aligned, the >>3 allows for a better hash */
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254 static int
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255 pdump_make_hash (const void *obj)
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256 {
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257 return ((unsigned long)(obj)>>3) % PDUMP_HASHSIZE;
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258 }
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259
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260 static pdump_entry_list_elmt *
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261 pdump_get_entry (const void *obj)
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262 {
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263 int pos = pdump_make_hash (obj);
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264 pdump_entry_list_elmt *e;
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265
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266 assert (obj != 0);
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267
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268 while ((e = pdump_hash[pos]) != 0)
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269 {
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270 if (e->obj == obj)
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271 return e;
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272
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273 pos++;
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274 if (pos == PDUMP_HASHSIZE)
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275 pos = 0;
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276 }
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277 return 0;
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278 }
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279
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280 static void
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281 pdump_add_entry (pdump_entry_list *list, const void *obj, size_t size, int count, int is_lrecord)
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282 {
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283 pdump_entry_list_elmt *e;
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284 int align;
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285 int pos = pdump_make_hash (obj);
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286
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287 while ((e = pdump_hash[pos]) != 0)
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288 {
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289 if (e->obj == obj)
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290 return;
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291
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292 pos++;
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293 if (pos == PDUMP_HASHSIZE)
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294 pos = 0;
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295 }
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296
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297 e = xnew (pdump_entry_list_elmt);
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298
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299 e->next = list->first;
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300 e->obj = obj;
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301 e->size = size;
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302 e->count = count;
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303 e->is_lrecord = is_lrecord;
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304 list->first = e;
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305
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306 list->count += count;
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307 pdump_hash[pos] = e;
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308
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452
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309 align = pdump_align_table[size & 255];
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442
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310 if (align < 2 && is_lrecord)
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311 align = 2;
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312
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313 if (align < list->align)
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314 list->align = align;
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315 }
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316
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317 static pdump_entry_list *
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318 pdump_get_entry_list (const struct struct_description *sdesc)
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319 {
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320 int i;
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321 for (i=0; i<pdump_struct_table.count; i++)
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322 if (pdump_struct_table.list[i].sdesc == sdesc)
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323 return &pdump_struct_table.list[i].list;
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324
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325 if (pdump_struct_table.size <= pdump_struct_table.count)
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326 {
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327 if (pdump_struct_table.size == -1)
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328 pdump_struct_table.size = 10;
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329 else
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330 pdump_struct_table.size = pdump_struct_table.size * 2;
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331 pdump_struct_table.list = (pdump_struct_list_elmt *)
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332 xrealloc (pdump_struct_table.list,
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333 pdump_struct_table.size * sizeof (pdump_struct_list_elmt));
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334 }
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335 pdump_struct_table.list[pdump_struct_table.count].list.first = 0;
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336 pdump_struct_table.list[pdump_struct_table.count].list.align = 8;
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337 pdump_struct_table.list[pdump_struct_table.count].list.count = 0;
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338 pdump_struct_table.list[pdump_struct_table.count].sdesc = sdesc;
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339
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340 return &pdump_struct_table.list[pdump_struct_table.count++].list;
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341 }
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342
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343 static struct
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344 {
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345 struct lrecord_header *obj;
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346 int position;
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347 int offset;
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348 } backtrace[65536];
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349
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350 static int depth;
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351
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452
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352 static void
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353 pdump_backtrace (void)
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442
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354 {
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355 int i;
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356 stderr_out ("pdump backtrace :\n");
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357 for (i=0;i<depth;i++)
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358 {
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359 if (!backtrace[i].obj)
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360 stderr_out (" - ind. (%d, %d)\n", backtrace[i].position, backtrace[i].offset);
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361 else
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362 {
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363 stderr_out (" - %s (%d, %d)\n",
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364 LHEADER_IMPLEMENTATION (backtrace[i].obj)->name,
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365 backtrace[i].position,
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366 backtrace[i].offset);
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367 }
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368 }
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369 }
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370
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371 static void pdump_register_object (Lisp_Object obj);
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372 static void pdump_register_struct (const void *data, const struct struct_description *sdesc, int count);
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373
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374 static EMACS_INT
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375 pdump_get_indirect_count (EMACS_INT code, const struct lrecord_description *idesc, const void *idata)
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376 {
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377 EMACS_INT count;
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378 const void *irdata;
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379
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380 int line = XD_INDIRECT_VAL (code);
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381 int delta = XD_INDIRECT_DELTA (code);
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382
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383 irdata = ((char *)idata) + idesc[line].offset;
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384 switch (idesc[line].type)
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385 {
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386 case XD_SIZE_T:
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387 count = *(size_t *)irdata;
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388 break;
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389 case XD_INT:
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390 count = *(int *)irdata;
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391 break;
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392 case XD_LONG:
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393 count = *(long *)irdata;
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394 break;
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395 case XD_BYTECOUNT:
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396 count = *(Bytecount *)irdata;
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397 break;
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398 default:
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399 stderr_out ("Unsupported count type : %d (line = %d, code=%ld)\n", idesc[line].type, line, (long)code);
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|
|
400 pdump_backtrace ();
|
|
|
401 abort ();
|
|
|
402 }
|
|
|
403 count += delta;
|
|
|
404 return count;
|
|
|
405 }
|
|
|
406
|
|
|
407 static void
|
|
|
408 pdump_register_sub (const void *data, const struct lrecord_description *desc, int me)
|
|
|
409 {
|
|
|
410 int pos;
|
|
|
411
|
|
|
412 restart:
|
|
|
413 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
414 {
|
|
|
415 const void *rdata = (const char *)data + desc[pos].offset;
|
|
|
416
|
|
|
417 backtrace[me].position = pos;
|
|
|
418 backtrace[me].offset = desc[pos].offset;
|
|
|
419
|
|
|
420 switch (desc[pos].type)
|
|
|
421 {
|
|
|
422 case XD_SPECIFIER_END:
|
|
|
423 pos = 0;
|
|
|
424 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
425 goto restart;
|
|
|
426 case XD_SIZE_T:
|
|
|
427 case XD_INT:
|
|
|
428 case XD_LONG:
|
|
|
429 case XD_BYTECOUNT:
|
|
|
430 case XD_INT_RESET:
|
|
|
431 case XD_LO_LINK:
|
|
|
432 break;
|
|
|
433 case XD_OPAQUE_DATA_PTR:
|
|
|
434 {
|
|
|
435 EMACS_INT count = desc[pos].data1;
|
|
|
436 if (XD_IS_INDIRECT (count))
|
|
|
437 count = pdump_get_indirect_count (count, desc, data);
|
|
|
438
|
|
|
439 pdump_add_entry (&pdump_opaque_data_list,
|
|
|
440 *(void **)rdata,
|
|
|
441 count,
|
|
|
442 1,
|
|
|
443 0);
|
|
|
444 break;
|
|
|
445 }
|
|
|
446 case XD_C_STRING:
|
|
|
447 {
|
|
|
448 const char *str = *(const char **)rdata;
|
|
|
449 if (str)
|
|
|
450 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1, 0);
|
|
|
451 break;
|
|
|
452 }
|
|
|
453 case XD_DOC_STRING:
|
|
|
454 {
|
|
|
455 const char *str = *(const char **)rdata;
|
|
|
456 if ((EMACS_INT)str > 0)
|
|
|
457 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1, 0);
|
|
|
458 break;
|
|
|
459 }
|
|
|
460 case XD_LISP_OBJECT:
|
|
|
461 {
|
|
|
462 const Lisp_Object *pobj = (const Lisp_Object *)rdata;
|
|
|
463
|
|
|
464 assert (desc[pos].data1 == 0);
|
|
|
465
|
|
|
466 backtrace[me].offset = (const char *)pobj - (const char *)data;
|
|
|
467 pdump_register_object (*pobj);
|
|
|
468 break;
|
|
|
469 }
|
|
|
470 case XD_LISP_OBJECT_ARRAY:
|
|
|
471 {
|
|
|
472 int i;
|
|
|
473 EMACS_INT count = desc[pos].data1;
|
|
|
474 if (XD_IS_INDIRECT (count))
|
|
|
475 count = pdump_get_indirect_count (count, desc, data);
|
|
|
476
|
|
|
477 for (i = 0; i < count; i++)
|
|
|
478 {
|
|
|
479 const Lisp_Object *pobj = ((const Lisp_Object *)rdata) + i;
|
|
|
480 Lisp_Object dobj = *pobj;
|
|
|
481
|
|
|
482 backtrace[me].offset = (const char *)pobj - (const char *)data;
|
|
|
483 pdump_register_object (dobj);
|
|
|
484 }
|
|
|
485 break;
|
|
|
486 }
|
|
|
487 case XD_STRUCT_PTR:
|
|
|
488 {
|
|
|
489 EMACS_INT count = desc[pos].data1;
|
|
|
490 const struct struct_description *sdesc = desc[pos].data2;
|
|
|
491 const char *dobj = *(const char **)rdata;
|
|
|
492 if (dobj)
|
|
|
493 {
|
|
|
494 if (XD_IS_INDIRECT (count))
|
|
|
495 count = pdump_get_indirect_count (count, desc, data);
|
|
|
496
|
|
|
497 pdump_register_struct (dobj, sdesc, count);
|
|
|
498 }
|
|
|
499 break;
|
|
|
500 }
|
|
|
501 default:
|
|
|
502 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
503 pdump_backtrace ();
|
|
|
504 abort ();
|
|
|
505 };
|
|
|
506 }
|
|
|
507 }
|
|
|
508
|
|
|
509 static void
|
|
|
510 pdump_register_object (Lisp_Object obj)
|
|
|
511 {
|
|
|
512 struct lrecord_header *objh;
|
|
|
513
|
|
|
514 if (!POINTER_TYPE_P (XTYPE (obj)))
|
|
|
515 return;
|
|
|
516
|
|
|
517 objh = XRECORD_LHEADER (obj);
|
|
|
518 if (!objh)
|
|
|
519 return;
|
|
|
520
|
|
|
521 if (pdump_get_entry (objh))
|
|
|
522 return;
|
|
|
523
|
|
|
524 if (LHEADER_IMPLEMENTATION (objh)->description)
|
|
|
525 {
|
|
|
526 int me = depth++;
|
|
|
527 if (me>65536)
|
|
|
528 {
|
|
|
529 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
530 abort ();
|
|
|
531 }
|
|
|
532 backtrace[me].obj = objh;
|
|
|
533 backtrace[me].position = 0;
|
|
|
534 backtrace[me].offset = 0;
|
|
|
535
|
|
|
536 pdump_add_entry (pdump_object_table + objh->type,
|
|
|
537 objh,
|
|
|
538 LHEADER_IMPLEMENTATION (objh)->static_size ?
|
|
|
539 LHEADER_IMPLEMENTATION (objh)->static_size :
|
|
|
540 LHEADER_IMPLEMENTATION (objh)->size_in_bytes_method (objh),
|
|
|
541 1,
|
|
|
542 1);
|
|
|
543 pdump_register_sub (objh,
|
|
|
544 LHEADER_IMPLEMENTATION (objh)->description,
|
|
|
545 me);
|
|
|
546 --depth;
|
|
|
547 }
|
|
|
548 else
|
|
|
549 {
|
|
|
550 pdump_alert_undump_object[objh->type]++;
|
|
|
551 stderr_out ("Undumpable object type : %s\n", LHEADER_IMPLEMENTATION (objh)->name);
|
|
|
552 pdump_backtrace ();
|
|
|
553 }
|
|
|
554 }
|
|
|
555
|
|
|
556 static void
|
|
|
557 pdump_register_struct (const void *data, const struct struct_description *sdesc, int count)
|
|
|
558 {
|
|
|
559 if (data && !pdump_get_entry (data))
|
|
|
560 {
|
|
|
561 int me = depth++;
|
|
|
562 int i;
|
|
|
563 if (me>65536)
|
|
|
564 {
|
|
|
565 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
566 abort ();
|
|
|
567 }
|
|
|
568 backtrace[me].obj = 0;
|
|
|
569 backtrace[me].position = 0;
|
|
|
570 backtrace[me].offset = 0;
|
|
|
571
|
|
|
572 pdump_add_entry (pdump_get_entry_list (sdesc),
|
|
|
573 data,
|
|
|
574 sdesc->size,
|
|
|
575 count,
|
|
|
576 0);
|
|
|
577 for (i=0; i<count; i++)
|
|
|
578 {
|
|
|
579 pdump_register_sub (((char *)data) + sdesc->size*i,
|
|
|
580 sdesc->description,
|
|
|
581 me);
|
|
|
582 }
|
|
|
583 --depth;
|
|
|
584 }
|
|
|
585 }
|
|
|
586
|
|
|
587 static void
|
|
|
588 pdump_dump_data (pdump_entry_list_elmt *elmt, const struct lrecord_description *desc)
|
|
|
589 {
|
|
|
590 size_t size = elmt->size;
|
|
|
591 int count = elmt->count;
|
|
|
592 if (desc)
|
|
|
593 {
|
|
|
594 int pos, i;
|
|
|
595 memcpy (pdump_buf, elmt->obj, size*count);
|
|
|
596
|
|
|
597 for (i=0; i<count; i++)
|
|
|
598 {
|
|
|
599 char *cur = ((char *)pdump_buf) + i*size;
|
|
|
600 restart:
|
|
|
601 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
602 {
|
|
|
603 void *rdata = cur + desc[pos].offset;
|
|
|
604 switch (desc[pos].type)
|
|
|
605 {
|
|
|
606 case XD_SPECIFIER_END:
|
|
|
607 desc = ((const Lisp_Specifier *)(elmt->obj))->methods->extra_description;
|
|
|
608 goto restart;
|
|
|
609 case XD_SIZE_T:
|
|
|
610 case XD_INT:
|
|
|
611 case XD_LONG:
|
|
|
612 case XD_BYTECOUNT:
|
|
|
613 break;
|
|
|
614 case XD_INT_RESET:
|
|
|
615 {
|
|
|
616 EMACS_INT val = desc[pos].data1;
|
|
|
617 if (XD_IS_INDIRECT (val))
|
|
|
618 val = pdump_get_indirect_count (val, desc, elmt->obj);
|
|
|
619 *(int *)rdata = val;
|
|
|
620 break;
|
|
|
621 }
|
|
|
622 case XD_OPAQUE_DATA_PTR:
|
|
|
623 case XD_C_STRING:
|
|
|
624 case XD_STRUCT_PTR:
|
|
|
625 {
|
|
|
626 void *ptr = *(void **)rdata;
|
|
|
627 if (ptr)
|
|
|
628 *(EMACS_INT *)rdata = pdump_get_entry (ptr)->save_offset;
|
|
|
629 break;
|
|
|
630 }
|
|
|
631 case XD_LO_LINK:
|
|
|
632 {
|
|
|
633 Lisp_Object obj = *(Lisp_Object *)rdata;
|
|
|
634 pdump_entry_list_elmt *elmt1;
|
|
|
635 for (;;)
|
|
|
636 {
|
|
|
637 elmt1 = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
638 if (elmt1)
|
|
|
639 break;
|
|
|
640 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
641 }
|
|
|
642 *(EMACS_INT *)rdata = elmt1->save_offset;
|
|
|
643 break;
|
|
|
644 }
|
|
|
645 case XD_LISP_OBJECT:
|
|
|
646 {
|
|
|
647 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
648
|
|
|
649 assert (desc[pos].data1 == 0);
|
|
|
650
|
|
|
651 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
652 *(EMACS_INT *)pobj =
|
|
|
653 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
654 break;
|
|
|
655 }
|
|
|
656 case XD_LISP_OBJECT_ARRAY:
|
|
|
657 {
|
|
|
658 EMACS_INT num = desc[pos].data1;
|
|
|
659 int j;
|
|
|
660 if (XD_IS_INDIRECT (num))
|
|
|
661 num = pdump_get_indirect_count (num, desc, elmt->obj);
|
|
|
662
|
|
|
663 for (j=0; j<num; j++)
|
|
|
664 {
|
|
|
665 Lisp_Object *pobj = ((Lisp_Object *)rdata) + j;
|
|
|
666 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
667 *(EMACS_INT *)pobj =
|
|
|
668 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
669 }
|
|
|
670 break;
|
|
|
671 }
|
|
|
672 case XD_DOC_STRING:
|
|
|
673 {
|
|
|
674 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
675 if (str > 0)
|
|
|
676 *(EMACS_INT *)rdata = pdump_get_entry ((void *)str)->save_offset;
|
|
|
677 break;
|
|
|
678 }
|
|
|
679 default:
|
|
|
680 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
681 abort ();
|
|
|
682 };
|
|
|
683 }
|
|
|
684 }
|
|
|
685 }
|
|
|
686 write (pdump_fd, desc ? pdump_buf : elmt->obj, size*count);
|
|
|
687 if (elmt->is_lrecord && ((size*count) & 3))
|
|
|
688 write (pdump_fd, "\0\0\0", 4-((size*count) & 3));
|
|
|
689 }
|
|
|
690
|
|
|
691 static void
|
|
|
692 pdump_reloc_one (void *data, EMACS_INT delta, const struct lrecord_description *desc)
|
|
|
693 {
|
|
|
694 int pos;
|
|
|
695
|
|
|
696 restart:
|
|
|
697 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
698 {
|
|
|
699 void *rdata = (char *)data + desc[pos].offset;
|
|
|
700 switch (desc[pos].type)
|
|
|
701 {
|
|
|
702 case XD_SPECIFIER_END:
|
|
|
703 pos = 0;
|
|
|
704 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
705 goto restart;
|
|
|
706 case XD_SIZE_T:
|
|
|
707 case XD_INT:
|
|
|
708 case XD_LONG:
|
|
|
709 case XD_BYTECOUNT:
|
|
|
710 case XD_INT_RESET:
|
|
|
711 break;
|
|
|
712 case XD_OPAQUE_DATA_PTR:
|
|
|
713 case XD_C_STRING:
|
|
|
714 case XD_STRUCT_PTR:
|
|
|
715 case XD_LO_LINK:
|
|
|
716 {
|
|
|
717 EMACS_INT ptr = *(EMACS_INT *)rdata;
|
|
|
718 if (ptr)
|
|
|
719 *(EMACS_INT *)rdata = ptr+delta;
|
|
|
720 break;
|
|
|
721 }
|
|
|
722 case XD_LISP_OBJECT:
|
|
|
723 {
|
|
|
724 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
725
|
|
|
726 assert (desc[pos].data1 == 0);
|
|
|
727
|
|
|
728 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
729 && ! EQ (*pobj, Qnull_pointer))
|
|
|
730 XSETOBJ (*pobj, (char *) XPNTR (*pobj) + delta);
|
|
|
731
|
|
|
732 break;
|
|
|
733 }
|
|
|
734 case XD_LISP_OBJECT_ARRAY:
|
|
|
735 {
|
|
|
736 EMACS_INT num = desc[pos].data1;
|
|
|
737 int j;
|
|
|
738 if (XD_IS_INDIRECT (num))
|
|
|
739 num = pdump_get_indirect_count (num, desc, data);
|
|
|
740
|
|
|
741 for (j=0; j<num; j++)
|
|
|
742 {
|
|
|
743 Lisp_Object *pobj = (Lisp_Object *) rdata + j;
|
|
|
744
|
|
|
745 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
746 && ! EQ (*pobj, Qnull_pointer))
|
|
|
747 XSETOBJ (*pobj, (char *) XPNTR (*pobj) + delta);
|
|
|
748 }
|
|
|
749 break;
|
|
|
750 }
|
|
|
751 case XD_DOC_STRING:
|
|
|
752 {
|
|
|
753 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
754 if (str > 0)
|
|
|
755 *(EMACS_INT *)rdata = str + delta;
|
|
|
756 break;
|
|
|
757 }
|
|
|
758 default:
|
|
|
759 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
760 abort ();
|
|
|
761 };
|
|
|
762 }
|
|
|
763 }
|
|
|
764
|
|
|
765 static void
|
|
|
766 pdump_allocate_offset (pdump_entry_list_elmt *elmt, const struct lrecord_description *desc)
|
|
|
767 {
|
|
|
768 size_t size = (elmt->is_lrecord ? (elmt->size + 3) & ~3 : elmt->size)*elmt->count;
|
|
|
769 elmt->save_offset = cur_offset;
|
|
|
770 if (size>max_size)
|
|
|
771 max_size = size;
|
|
|
772 cur_offset += size;
|
|
|
773 }
|
|
|
774
|
|
|
775 static void
|
|
|
776 pdump_scan_by_alignment (void (*f)(pdump_entry_list_elmt *, const struct lrecord_description *))
|
|
|
777 {
|
|
|
778 int align, i;
|
|
|
779 const struct lrecord_description *idesc;
|
|
|
780 pdump_entry_list_elmt *elmt;
|
|
|
781 for (align=8; align>=0; align--)
|
|
|
782 {
|
|
|
783 for (i=0; i<lrecord_type_count; i++)
|
|
|
784 if (pdump_object_table[i].align == align)
|
|
|
785 {
|
|
|
786 elmt = pdump_object_table[i].first;
|
|
|
787 if (!elmt)
|
|
|
788 continue;
|
|
|
789 idesc = lrecord_implementations_table[i]->description;
|
|
|
790 while (elmt)
|
|
|
791 {
|
|
|
792 f (elmt, idesc);
|
|
|
793 elmt = elmt->next;
|
|
|
794 }
|
|
|
795 }
|
|
|
796
|
|
|
797 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
798 if (pdump_struct_table.list[i].list.align == align)
|
|
|
799 {
|
|
|
800 elmt = pdump_struct_table.list[i].list.first;
|
|
|
801 idesc = pdump_struct_table.list[i].sdesc->description;
|
|
|
802 while (elmt)
|
|
|
803 {
|
|
|
804 f (elmt, idesc);
|
|
|
805 elmt = elmt->next;
|
|
|
806 }
|
|
|
807 }
|
|
|
808
|
|
|
809 elmt = pdump_opaque_data_list.first;
|
|
|
810 while (elmt)
|
|
|
811 {
|
|
452
|
812 if (pdump_align_table[elmt->size & 255] == align)
|
|
442
|
813 f (elmt, 0);
|
|
|
814 elmt = elmt->next;
|
|
|
815 }
|
|
|
816 }
|
|
|
817 }
|
|
|
818
|
|
|
819 static void
|
|
452
|
820 pdump_dump_from_root_struct_ptrs (void)
|
|
442
|
821 {
|
|
|
822 int i;
|
|
452
|
823 for (i = 0; i < Dynarr_length (pdump_root_struct_ptrs); i++)
|
|
442
|
824 {
|
|
|
825 EMACS_INT adr;
|
|
452
|
826 pdump_root_struct_ptr *info = Dynarr_atp (pdump_root_struct_ptrs, i);
|
|
|
827 write (pdump_fd, &info->ptraddress, sizeof (info->ptraddress));
|
|
|
828 adr = pdump_get_entry (*(info->ptraddress))->save_offset;
|
|
442
|
829 write (pdump_fd, &adr, sizeof (adr));
|
|
|
830 }
|
|
|
831 }
|
|
|
832
|
|
|
833 static void
|
|
452
|
834 pdump_dump_opaques (void)
|
|
442
|
835 {
|
|
|
836 int i;
|
|
452
|
837 for (i = 0; i < Dynarr_length (pdump_opaques); i++)
|
|
442
|
838 {
|
|
452
|
839 pdump_opaque *info = Dynarr_atp (pdump_opaques, i);
|
|
|
840 write (pdump_fd, info, sizeof (*info));
|
|
|
841 write (pdump_fd, info->varaddress, info->size);
|
|
442
|
842 }
|
|
|
843 }
|
|
|
844
|
|
|
845 static void
|
|
|
846 pdump_dump_rtables (void)
|
|
|
847 {
|
|
452
|
848 int i;
|
|
442
|
849 pdump_entry_list_elmt *elmt;
|
|
|
850 pdump_reloc_table rt;
|
|
|
851
|
|
|
852 for (i=0; i<lrecord_type_count; i++)
|
|
|
853 {
|
|
|
854 elmt = pdump_object_table[i].first;
|
|
|
855 if (!elmt)
|
|
|
856 continue;
|
|
|
857 rt.desc = lrecord_implementations_table[i]->description;
|
|
|
858 rt.count = pdump_object_table[i].count;
|
|
|
859 write (pdump_fd, &rt, sizeof (rt));
|
|
|
860 while (elmt)
|
|
|
861 {
|
|
|
862 EMACS_INT rdata = pdump_get_entry (elmt->obj)->save_offset;
|
|
|
863 write (pdump_fd, &rdata, sizeof (rdata));
|
|
|
864 elmt = elmt->next;
|
|
|
865 }
|
|
|
866 }
|
|
|
867
|
|
|
868 rt.desc = 0;
|
|
|
869 rt.count = 0;
|
|
|
870 write (pdump_fd, &rt, sizeof (rt));
|
|
|
871
|
|
|
872 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
873 {
|
|
|
874 elmt = pdump_struct_table.list[i].list.first;
|
|
|
875 rt.desc = pdump_struct_table.list[i].sdesc->description;
|
|
|
876 rt.count = pdump_struct_table.list[i].list.count;
|
|
|
877 write (pdump_fd, &rt, sizeof (rt));
|
|
|
878 while (elmt)
|
|
|
879 {
|
|
|
880 EMACS_INT rdata = pdump_get_entry (elmt->obj)->save_offset;
|
|
452
|
881 int j;
|
|
442
|
882 for (j=0; j<elmt->count; j++)
|
|
|
883 {
|
|
|
884 write (pdump_fd, &rdata, sizeof (rdata));
|
|
|
885 rdata += elmt->size;
|
|
|
886 }
|
|
|
887 elmt = elmt->next;
|
|
|
888 }
|
|
|
889 }
|
|
|
890 rt.desc = 0;
|
|
|
891 rt.count = 0;
|
|
|
892 write (pdump_fd, &rt, sizeof (rt));
|
|
|
893 }
|
|
|
894
|
|
|
895 static void
|
|
452
|
896 pdump_dump_from_root_objects (void)
|
|
442
|
897 {
|
|
452
|
898 size_t count = Dynarr_length (pdump_root_objects) + Dynarr_length (pdump_weak_object_chains);
|
|
|
899 size_t i;
|
|
442
|
900
|
|
|
901 write (pdump_fd, &count, sizeof (count));
|
|
|
902
|
|
452
|
903 for (i=0; i<Dynarr_length (pdump_root_objects); i++)
|
|
442
|
904 {
|
|
452
|
905 Lisp_Object obj = * Dynarr_at (pdump_root_objects, i);
|
|
|
906 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
|
907 obj = wrap_object ((void *) pdump_get_entry (XRECORD_LHEADER (obj))->save_offset);
|
|
|
908 write (pdump_fd, Dynarr_atp (pdump_root_objects, i), sizeof (Dynarr_atp (pdump_root_objects, i)));
|
|
442
|
909 write (pdump_fd, &obj, sizeof (obj));
|
|
|
910 }
|
|
|
911
|
|
452
|
912 for (i=0; i<Dynarr_length (pdump_weak_object_chains); i++)
|
|
442
|
913 {
|
|
452
|
914 Lisp_Object obj = * Dynarr_at (pdump_weak_object_chains, i);
|
|
442
|
915 pdump_entry_list_elmt *elmt;
|
|
|
916
|
|
|
917 for (;;)
|
|
|
918 {
|
|
|
919 const struct lrecord_description *desc;
|
|
|
920 int pos;
|
|
|
921 elmt = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
922 if (elmt)
|
|
|
923 break;
|
|
|
924 desc = XRECORD_LHEADER_IMPLEMENTATION (obj)->description;
|
|
|
925 for (pos = 0; desc[pos].type != XD_LO_LINK; pos++)
|
|
|
926 assert (desc[pos].type != XD_END);
|
|
|
927
|
|
|
928 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
929 }
|
|
452
|
930 obj = wrap_object ((void *) elmt->save_offset);
|
|
442
|
931
|
|
452
|
932 write (pdump_fd, Dynarr_atp (pdump_weak_object_chains, i), sizeof (Lisp_Object *));
|
|
|
933 write (pdump_fd, &obj, sizeof (obj));
|
|
442
|
934 }
|
|
|
935 }
|
|
|
936
|
|
|
937 void
|
|
|
938 pdump (void)
|
|
|
939 {
|
|
|
940 int i;
|
|
|
941 Lisp_Object t_console, t_device, t_frame;
|
|
|
942 int none;
|
|
452
|
943 pdump_header hd;
|
|
442
|
944
|
|
446
|
945 flush_all_buffer_local_cache ();
|
|
|
946
|
|
442
|
947 /* These appear in a DEFVAR_LISP, which does a staticpro() */
|
|
452
|
948 t_console = Vterminal_console; Vterminal_console = Qnil;
|
|
|
949 t_frame = Vterminal_frame; Vterminal_frame = Qnil;
|
|
|
950 t_device = Vterminal_device; Vterminal_device = Qnil;
|
|
442
|
951
|
|
452
|
952 dump_add_opaque (&lrecord_implementations_table,
|
|
|
953 lrecord_type_count * sizeof (lrecord_implementations_table[0]));
|
|
|
954 dump_add_opaque (&lrecord_markers,
|
|
|
955 lrecord_type_count * sizeof (lrecord_markers[0]));
|
|
442
|
956
|
|
|
957 pdump_hash = xnew_array_and_zero (pdump_entry_list_elmt *, PDUMP_HASHSIZE);
|
|
|
958
|
|
|
959 for (i=0; i<lrecord_type_count; i++)
|
|
|
960 {
|
|
|
961 pdump_object_table[i].first = 0;
|
|
|
962 pdump_object_table[i].align = 8;
|
|
|
963 pdump_object_table[i].count = 0;
|
|
|
964 pdump_alert_undump_object[i] = 0;
|
|
|
965 }
|
|
|
966 pdump_struct_table.count = 0;
|
|
|
967 pdump_struct_table.size = -1;
|
|
|
968
|
|
|
969 pdump_opaque_data_list.first = 0;
|
|
|
970 pdump_opaque_data_list.align = 8;
|
|
|
971 pdump_opaque_data_list.count = 0;
|
|
|
972 depth = 0;
|
|
|
973
|
|
452
|
974 for (i=0; i<Dynarr_length (pdump_root_objects); i++)
|
|
|
975 pdump_register_object (* Dynarr_at (pdump_root_objects, i));
|
|
442
|
976
|
|
|
977 none = 1;
|
|
|
978 for (i=0; i<lrecord_type_count; i++)
|
|
|
979 if (pdump_alert_undump_object[i])
|
|
|
980 {
|
|
|
981 if (none)
|
|
|
982 printf ("Undumpable types list :\n");
|
|
|
983 none = 0;
|
|
|
984 printf (" - %s (%d)\n", lrecord_implementations_table[i]->name, pdump_alert_undump_object[i]);
|
|
|
985 }
|
|
|
986 if (!none)
|
|
|
987 return;
|
|
|
988
|
|
452
|
989 for (i=0; i<Dynarr_length (pdump_root_struct_ptrs); i++)
|
|
|
990 {
|
|
|
991 pdump_root_struct_ptr info = Dynarr_at (pdump_root_struct_ptrs, i);
|
|
|
992 pdump_register_struct (*(info.ptraddress), info.desc, 1);
|
|
|
993 }
|
|
442
|
994
|
|
452
|
995 memcpy (hd.signature, PDUMP_SIGNATURE, PDUMP_SIGNATURE_LEN);
|
|
442
|
996 hd.id = dump_id;
|
|
|
997 hd.reloc_address = 0;
|
|
452
|
998 hd.nb_root_struct_ptrs = Dynarr_length (pdump_root_struct_ptrs);
|
|
|
999 hd.nb_opaques = Dynarr_length (pdump_opaques);
|
|
442
|
1000
|
|
|
1001 cur_offset = 256;
|
|
|
1002 max_size = 0;
|
|
|
1003
|
|
|
1004 pdump_scan_by_alignment (pdump_allocate_offset);
|
|
|
1005
|
|
|
1006 pdump_buf = xmalloc (max_size);
|
|
|
1007 /* Avoid use of the `open' macro. We want the real function. */
|
|
|
1008 #undef open
|
|
|
1009 pdump_fd = open (EMACS_PROGNAME ".dmp",
|
|
|
1010 O_WRONLY | O_CREAT | O_TRUNC | OPEN_BINARY, 0666);
|
|
|
1011 hd.stab_offset = (cur_offset + 3) & ~3;
|
|
|
1012
|
|
|
1013 write (pdump_fd, &hd, sizeof (hd));
|
|
|
1014 lseek (pdump_fd, 256, SEEK_SET);
|
|
|
1015
|
|
|
1016 pdump_scan_by_alignment (pdump_dump_data);
|
|
|
1017
|
|
|
1018 lseek (pdump_fd, hd.stab_offset, SEEK_SET);
|
|
|
1019
|
|
452
|
1020 pdump_dump_from_root_struct_ptrs ();
|
|
|
1021 pdump_dump_opaques ();
|
|
442
|
1022 pdump_dump_rtables ();
|
|
452
|
1023 pdump_dump_from_root_objects ();
|
|
442
|
1024
|
|
|
1025 close (pdump_fd);
|
|
|
1026 free (pdump_buf);
|
|
|
1027
|
|
|
1028 free (pdump_hash);
|
|
|
1029
|
|
|
1030 Vterminal_console = t_console;
|
|
|
1031 Vterminal_frame = t_frame;
|
|
|
1032 Vterminal_device = t_device;
|
|
|
1033 }
|
|
|
1034
|
|
452
|
1035 static int
|
|
|
1036 pdump_load_check (void)
|
|
442
|
1037 {
|
|
452
|
1038 return (!memcmp (((pdump_header *)pdump_start)->signature,
|
|
|
1039 PDUMP_SIGNATURE, PDUMP_SIGNATURE_LEN)
|
|
|
1040 && ((pdump_header *)pdump_start)->id == dump_id);
|
|
442
|
1041 }
|
|
|
1042
|
|
452
|
1043 static int
|
|
|
1044 pdump_load_finish (void)
|
|
442
|
1045 {
|
|
|
1046 int i;
|
|
|
1047 char *p;
|
|
|
1048 EMACS_INT delta;
|
|
|
1049 EMACS_INT count;
|
|
|
1050
|
|
|
1051 pdump_end = pdump_start + pdump_length;
|
|
|
1052
|
|
|
1053 #define PDUMP_READ(p, type) (p = (char*) (((type *) p) + 1), *((type *) p - 1))
|
|
|
1054
|
|
452
|
1055 delta = ((EMACS_INT)pdump_start) - ((pdump_header *)pdump_start)->reloc_address;
|
|
|
1056 p = pdump_start + ((pdump_header *)pdump_start)->stab_offset;
|
|
442
|
1057
|
|
452
|
1058 /* Put back the pdump_root_struct_ptrs */
|
|
|
1059 for (i=0; i<((pdump_header *)pdump_start)->nb_root_struct_ptrs; i++)
|
|
442
|
1060 {
|
|
|
1061 void **adr = PDUMP_READ (p, void **);
|
|
|
1062 *adr = (void *) (PDUMP_READ (p, char *) + delta);
|
|
|
1063 }
|
|
|
1064
|
|
452
|
1065 /* Put back the pdump_opaques */
|
|
|
1066 for (i=0; i<((pdump_header *)pdump_start)->nb_opaques; i++)
|
|
442
|
1067 {
|
|
452
|
1068 pdump_opaque info = PDUMP_READ (p, pdump_opaque);
|
|
|
1069 memcpy (info.varaddress, p, info.size);
|
|
|
1070 p += info.size;
|
|
442
|
1071 }
|
|
|
1072
|
|
|
1073 /* Do the relocations */
|
|
|
1074 pdump_rt_list = p;
|
|
|
1075 count = 2;
|
|
|
1076 for (;;)
|
|
|
1077 {
|
|
|
1078 pdump_reloc_table rt = PDUMP_READ (p, pdump_reloc_table);
|
|
|
1079 if (rt.desc)
|
|
|
1080 {
|
|
|
1081 for (i=0; i < rt.count; i++)
|
|
|
1082 {
|
|
|
1083 char *adr = delta + *(char **)p;
|
|
|
1084 *(char **)p = adr;
|
|
|
1085 pdump_reloc_one (adr, delta, rt.desc);
|
|
|
1086 p += sizeof (char *);
|
|
|
1087 }
|
|
|
1088 } else
|
|
|
1089 if (!(--count))
|
|
|
1090 break;
|
|
|
1091 }
|
|
|
1092
|
|
452
|
1093 /* Put the pdump_root_objects variables in place */
|
|
|
1094 for (i = PDUMP_READ (p, size_t); i; i--)
|
|
442
|
1095 {
|
|
|
1096 Lisp_Object *var = PDUMP_READ (p, Lisp_Object *);
|
|
|
1097 Lisp_Object obj = PDUMP_READ (p, Lisp_Object);
|
|
|
1098
|
|
|
1099 if (POINTER_TYPE_P (XTYPE (obj)))
|
|
452
|
1100 obj = wrap_object ((char *) XPNTR (obj) + delta);
|
|
442
|
1101
|
|
|
1102 *var = obj;
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 /* Final cleanups */
|
|
|
1106 /* reorganize hash tables */
|
|
|
1107 p = pdump_rt_list;
|
|
|
1108 for (;;)
|
|
|
1109 {
|
|
|
1110 pdump_reloc_table rt = PDUMP_READ (p, pdump_reloc_table);
|
|
|
1111 if (!rt.desc)
|
|
|
1112 break;
|
|
|
1113 if (rt.desc == hash_table_description)
|
|
|
1114 {
|
|
|
1115 for (i=0; i < rt.count; i++)
|
|
|
1116 pdump_reorganize_hash_table (PDUMP_READ (p, Lisp_Object));
|
|
|
1117 break;
|
|
|
1118 } else
|
|
|
1119 p += sizeof (Lisp_Object) * rt.count;
|
|
|
1120 }
|
|
|
1121
|
|
|
1122 return 1;
|
|
|
1123 }
|
|
|
1124
|
|
|
1125 #ifdef WIN32_NATIVE
|
|
|
1126 /* Free the mapped file if we decide we don't want it after all */
|
|
452
|
1127 static void
|
|
|
1128 pdump_file_unmap (void)
|
|
442
|
1129 {
|
|
|
1130 UnmapViewOfFile (pdump_start);
|
|
|
1131 CloseHandle (pdump_hFile);
|
|
|
1132 CloseHandle (pdump_hMap);
|
|
|
1133 }
|
|
|
1134
|
|
452
|
1135 static int
|
|
|
1136 pdump_file_get (const char *path)
|
|
442
|
1137 {
|
|
|
1138
|
|
|
1139 pdump_hFile = CreateFile (path,
|
|
|
1140 GENERIC_READ + GENERIC_WRITE, /* Required for copy on write */
|
|
|
1141 0, /* Not shared */
|
|
|
1142 NULL, /* Not inheritable */
|
|
|
1143 OPEN_EXISTING,
|
|
|
1144 FILE_ATTRIBUTE_NORMAL,
|
|
|
1145 NULL); /* No template file */
|
|
|
1146 if (pdump_hFile == INVALID_HANDLE_VALUE)
|
|
|
1147 return 0;
|
|
|
1148
|
|
|
1149 pdump_length = GetFileSize (pdump_hFile, NULL);
|
|
|
1150 pdump_hMap = CreateFileMapping (pdump_hFile,
|
|
|
1151 NULL, /* No security attributes */
|
|
|
1152 PAGE_WRITECOPY, /* Copy on write */
|
|
|
1153 0, /* Max size, high half */
|
|
|
1154 0, /* Max size, low half */
|
|
|
1155 NULL); /* Unnamed */
|
|
|
1156 if (pdump_hMap == INVALID_HANDLE_VALUE)
|
|
|
1157 return 0;
|
|
|
1158
|
|
|
1159 pdump_start = MapViewOfFile (pdump_hMap,
|
|
452
|
1160 FILE_MAP_COPY, /* Copy on write */
|
|
442
|
1161 0, /* Start at zero */
|
|
|
1162 0,
|
|
|
1163 0); /* Map all of it */
|
|
|
1164 pdump_free = pdump_file_unmap;
|
|
|
1165 return 1;
|
|
|
1166 }
|
|
|
1167
|
|
|
1168 /* pdump_resource_free is called (via the pdump_free pointer) to release
|
|
|
1169 any resources allocated by pdump_resource_get. Since the Windows API
|
|
|
1170 specs specifically state that you don't need to (and shouldn't) free the
|
|
|
1171 resources allocated by FindResource, LoadResource, and LockResource this
|
|
|
1172 routine does nothing. */
|
|
452
|
1173 static void
|
|
|
1174 pdump_resource_free (void)
|
|
442
|
1175 {
|
|
|
1176 }
|
|
|
1177
|
|
452
|
1178 static int
|
|
|
1179 pdump_resource_get (void)
|
|
442
|
1180 {
|
|
452
|
1181 HRSRC hRes; /* Handle to dump resource */
|
|
|
1182 HRSRC hResLoad; /* Handle to loaded dump resource */
|
|
442
|
1183
|
|
|
1184 /* See Q126630 which describes how Windows NT and 95 trap writes to
|
|
|
1185 resource sections and duplicate the page to allow the write to proceed.
|
|
|
1186 It also describes how to make the resource section read/write (and hence
|
|
|
1187 private to each process). Doing this avoids the exceptions and related
|
|
|
1188 overhead, but causes the resource section to be private to each process
|
|
|
1189 that is running XEmacs. Since the resource section contains little
|
|
|
1190 other than the dumped data, which should be private to each process, we
|
|
|
1191 make the whole resource section read/write so we don't have to copy it. */
|
|
|
1192
|
|
|
1193 hRes = FindResource (NULL, MAKEINTRESOURCE(101), "DUMP");
|
|
|
1194 if (hRes == NULL)
|
|
|
1195 return 0;
|
|
|
1196
|
|
|
1197 /* Found it, use the data in the resource */
|
|
|
1198 hResLoad = LoadResource (NULL, hRes);
|
|
|
1199 if (hResLoad == NULL)
|
|
|
1200 return 0;
|
|
|
1201
|
|
|
1202 pdump_start = LockResource (hResLoad);
|
|
|
1203 if (pdump_start == NULL)
|
|
|
1204 return 0;
|
|
|
1205
|
|
|
1206 pdump_free = pdump_resource_free;
|
|
|
1207 pdump_length = SizeofResource (NULL, hRes);
|
|
452
|
1208 if (pdump_length <= sizeof (pdump_header))
|
|
442
|
1209 {
|
|
|
1210 pdump_start = 0;
|
|
|
1211 return 0;
|
|
|
1212 }
|
|
|
1213
|
|
|
1214 return 1;
|
|
|
1215 }
|
|
|
1216
|
|
|
1217 #else /* !WIN32_NATIVE */
|
|
|
1218
|
|
|
1219 static void *pdump_mallocadr;
|
|
|
1220
|
|
452
|
1221 static void
|
|
|
1222 pdump_file_free (void)
|
|
442
|
1223 {
|
|
|
1224 xfree (pdump_mallocadr);
|
|
|
1225 }
|
|
|
1226
|
|
|
1227 #ifdef HAVE_MMAP
|
|
452
|
1228 static void
|
|
|
1229 pdump_file_unmap (void)
|
|
442
|
1230 {
|
|
|
1231 munmap (pdump_start, pdump_length);
|
|
|
1232 }
|
|
|
1233 #endif
|
|
|
1234
|
|
452
|
1235 static int
|
|
|
1236 pdump_file_get (const char *path)
|
|
442
|
1237 {
|
|
|
1238 int fd = open (path, O_RDONLY | OPEN_BINARY);
|
|
|
1239 if (fd<0)
|
|
|
1240 return 0;
|
|
|
1241
|
|
|
1242 pdump_length = lseek (fd, 0, SEEK_END);
|
|
452
|
1243 if (pdump_length < sizeof (pdump_header))
|
|
442
|
1244 {
|
|
|
1245 close (fd);
|
|
|
1246 return 0;
|
|
|
1247 }
|
|
|
1248
|
|
|
1249 lseek (fd, 0, SEEK_SET);
|
|
|
1250
|
|
|
1251 #ifdef HAVE_MMAP
|
|
456
|
1252 /* Unix 98 requires that sys/mman.h define MAP_FAILED,
|
|
|
1253 but many earlier implementations don't. */
|
|
|
1254 # ifndef MAP_FAILED
|
|
|
1255 # define MAP_FAILED ((void *) -1L)
|
|
|
1256 # endif
|
|
442
|
1257 pdump_start = (char *) mmap (0, pdump_length, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
|
|
452
|
1258 if (pdump_start != (char *) MAP_FAILED)
|
|
442
|
1259 {
|
|
|
1260 pdump_free = pdump_file_unmap;
|
|
|
1261 close (fd);
|
|
|
1262 return 1;
|
|
|
1263 }
|
|
456
|
1264 #endif /* HAVE_MMAP */
|
|
442
|
1265
|
|
452
|
1266 pdump_mallocadr = xmalloc (pdump_length+255);
|
|
442
|
1267 pdump_free = pdump_file_free;
|
|
|
1268 pdump_start = (char *)((255 + (unsigned long)pdump_mallocadr) & ~255);
|
|
446
|
1269 read (fd, pdump_start, pdump_length);
|
|
442
|
1270
|
|
446
|
1271 close (fd);
|
|
442
|
1272 return 1;
|
|
|
1273 }
|
|
|
1274 #endif /* !WIN32_NATIVE */
|
|
|
1275
|
|
|
1276
|
|
452
|
1277 static int
|
|
|
1278 pdump_file_try (char *exe_path)
|
|
442
|
1279 {
|
|
|
1280 char *w;
|
|
|
1281
|
|
452
|
1282 w = exe_path + strlen (exe_path);
|
|
442
|
1283 do
|
|
|
1284 {
|
|
|
1285 sprintf (w, "-%s-%08x.dmp", EMACS_VERSION, dump_id);
|
|
|
1286 if (pdump_file_get (exe_path))
|
|
|
1287 {
|
|
|
1288 if (pdump_load_check ())
|
|
|
1289 return 1;
|
|
452
|
1290 pdump_free ();
|
|
442
|
1291 }
|
|
|
1292
|
|
|
1293 sprintf (w, "-%08x.dmp", dump_id);
|
|
|
1294 if (pdump_file_get (exe_path))
|
|
|
1295 {
|
|
|
1296 if (pdump_load_check ())
|
|
|
1297 return 1;
|
|
452
|
1298 pdump_free ();
|
|
442
|
1299 }
|
|
|
1300
|
|
|
1301 sprintf (w, ".dmp");
|
|
|
1302 if (pdump_file_get (exe_path))
|
|
|
1303 {
|
|
|
1304 if (pdump_load_check ())
|
|
|
1305 return 1;
|
|
452
|
1306 pdump_free ();
|
|
442
|
1307 }
|
|
|
1308
|
|
|
1309 do
|
|
|
1310 w--;
|
|
|
1311 while (w>exe_path && !IS_DIRECTORY_SEP (*w) && (*w != '-') && (*w != '.'));
|
|
|
1312 }
|
|
|
1313 while (w>exe_path && !IS_DIRECTORY_SEP (*w));
|
|
|
1314 return 0;
|
|
|
1315 }
|
|
|
1316
|
|
452
|
1317 int
|
|
|
1318 pdump_load (const char *argv0)
|
|
442
|
1319 {
|
|
|
1320 char exe_path[PATH_MAX];
|
|
|
1321 #ifdef WIN32_NATIVE
|
|
|
1322 GetModuleFileName (NULL, exe_path, PATH_MAX);
|
|
|
1323 #else /* !WIN32_NATIVE */
|
|
|
1324 char *w;
|
|
|
1325 const char *dir, *p;
|
|
|
1326
|
|
|
1327 dir = argv0;
|
|
|
1328 if (dir[0] == '-')
|
|
|
1329 {
|
|
|
1330 /* XEmacs as a login shell, oh goody! */
|
|
452
|
1331 dir = getenv ("SHELL");
|
|
442
|
1332 }
|
|
|
1333
|
|
452
|
1334 p = dir + strlen (dir);
|
|
442
|
1335 while (p != dir && !IS_ANY_SEP (p[-1])) p--;
|
|
|
1336
|
|
|
1337 if (p != dir)
|
|
|
1338 {
|
|
|
1339 /* invocation-name includes a directory component -- presumably it
|
|
|
1340 is relative to cwd, not $PATH */
|
|
|
1341 strcpy (exe_path, dir);
|
|
|
1342 }
|
|
|
1343 else
|
|
|
1344 {
|
|
|
1345 const char *path = getenv ("PATH");
|
|
|
1346 const char *name = p;
|
|
|
1347 for (;;)
|
|
|
1348 {
|
|
|
1349 p = path;
|
|
|
1350 while (*p && *p != SEPCHAR)
|
|
|
1351 p++;
|
|
|
1352 if (p == path)
|
|
|
1353 {
|
|
|
1354 exe_path[0] = '.';
|
|
|
1355 w = exe_path + 1;
|
|
|
1356 }
|
|
|
1357 else
|
|
|
1358 {
|
|
|
1359 memcpy (exe_path, path, p - path);
|
|
|
1360 w = exe_path + (p - path);
|
|
|
1361 }
|
|
|
1362 if (!IS_DIRECTORY_SEP (w[-1]))
|
|
|
1363 {
|
|
|
1364 *w++ = '/';
|
|
|
1365 }
|
|
452
|
1366 strcpy (w, name);
|
|
442
|
1367
|
|
|
1368 /* ### #$%$#^$^@%$^#%@$ ! */
|
|
|
1369 #ifdef access
|
|
|
1370 #undef access
|
|
|
1371 #endif
|
|
|
1372
|
|
|
1373 if (!access (exe_path, X_OK))
|
|
|
1374 break;
|
|
|
1375 if (!*p)
|
|
|
1376 {
|
|
|
1377 /* Oh well, let's have some kind of default */
|
|
|
1378 sprintf (exe_path, "./%s", name);
|
|
|
1379 break;
|
|
|
1380 }
|
|
|
1381 path = p+1;
|
|
|
1382 }
|
|
|
1383 }
|
|
|
1384 #endif /* WIN32_NATIVE */
|
|
|
1385
|
|
|
1386 if (pdump_file_try (exe_path))
|
|
|
1387 {
|
|
|
1388 pdump_load_finish ();
|
|
|
1389 return 1;
|
|
|
1390 }
|
|
|
1391
|
|
|
1392 #ifdef WIN32_NATIVE
|
|
|
1393 if (pdump_resource_get ())
|
|
|
1394 {
|
|
|
1395 if (pdump_load_check ())
|
|
|
1396 {
|
|
|
1397 pdump_load_finish ();
|
|
|
1398 return 1;
|
|
|
1399 }
|
|
|
1400 pdump_free ();
|
|
|
1401 }
|
|
|
1402 #endif
|
|
|
1403
|
|
|
1404 return 0;
|
|
|
1405 }
|
