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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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458
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3 Copyright (C) 2001 Martin Buchholz
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442
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not in FSF. */
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23
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24 #include <config.h>
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25 #include "lisp.h"
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26
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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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458
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67 typedef struct
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68 {
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69 Lisp_Object *address;
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70 Lisp_Object value;
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71 } pdump_static_Lisp_Object;
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72
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73 typedef struct
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74 {
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75 char **address; /* char * for ease of doing relocation */
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76 char * value;
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77 } pdump_static_pointer;
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78
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452
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79 static pdump_opaque_dynarr *pdump_opaques;
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80 static pdump_root_struct_ptr_dynarr *pdump_root_struct_ptrs;
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81 static Lisp_Object_ptr_dynarr *pdump_root_objects;
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82 static Lisp_Object_ptr_dynarr *pdump_weak_object_chains;
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83
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84 /* Mark SIZE bytes at non-heap address VARADDRESS for dumping as is,
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85 without any bit-twiddling. */
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86 void
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87 dump_add_opaque (void *varaddress, size_t size)
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88 {
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89 pdump_opaque info;
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90 info.varaddress = varaddress;
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91 info.size = size;
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92 if (pdump_opaques == NULL)
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93 pdump_opaques = Dynarr_new (pdump_opaque);
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94 Dynarr_add (pdump_opaques, info);
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95 }
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96
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97 /* Mark the struct described by DESC and pointed to by the pointer at
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98 non-heap address VARADDRESS for dumping.
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99 All the objects reachable from this pointer will also be dumped. */
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100 void
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101 dump_add_root_struct_ptr (void *ptraddress, const struct struct_description *desc)
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102 {
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103 pdump_root_struct_ptr info;
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104 info.ptraddress = (void **) ptraddress;
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105 info.desc = desc;
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106 if (pdump_root_struct_ptrs == NULL)
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107 pdump_root_struct_ptrs = Dynarr_new (pdump_root_struct_ptr);
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108 Dynarr_add (pdump_root_struct_ptrs, info);
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109 }
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110
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111 /* Mark the Lisp_Object at non-heap address VARADDRESS for dumping.
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112 All the objects reachable from this var will also be dumped. */
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113 void
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114 dump_add_root_object (Lisp_Object *varaddress)
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115 {
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116 if (pdump_root_objects == NULL)
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117 pdump_root_objects = Dynarr_new2 (Lisp_Object_ptr_dynarr, Lisp_Object *);
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118 Dynarr_add (pdump_root_objects, varaddress);
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119 }
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120
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121 /* Mark the list pointed to by the Lisp_Object at VARADDRESS for dumping. */
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122 void
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123 dump_add_weak_object_chain (Lisp_Object *varaddress)
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124 {
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125 if (pdump_weak_object_chains == NULL)
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126 pdump_weak_object_chains = Dynarr_new2 (Lisp_Object_ptr_dynarr, Lisp_Object *);
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127 Dynarr_add (pdump_weak_object_chains, varaddress);
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128 }
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129
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130
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458
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131 inline static void
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132 pdump_align_stream (FILE *stream, size_t alignment)
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133 {
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134 long offset = ftell (stream);
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135 long adjustment = ALIGN_SIZE (offset, alignment) - offset;
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136 if (adjustment)
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137 fseek (stream, adjustment, SEEK_CUR);
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138 }
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139
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140 #define PDUMP_ALIGN_OUTPUT(type) pdump_align_stream (pdump_out, ALIGNOF (type))
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141
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142 #define PDUMP_WRITE(type, object) \
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143 fwrite (&object, sizeof (object), 1, pdump_out);
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144
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145 #define PDUMP_WRITE_ALIGNED(type, object) do { \
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146 PDUMP_ALIGN_OUTPUT (type); \
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147 PDUMP_WRITE (type, object); \
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148 } while (0)
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149
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150 #define PDUMP_READ(ptr, type) \
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151 (((type *) (ptr = (char*) (((type *) ptr) + 1)))[-1])
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152
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153 #define PDUMP_READ_ALIGNED(ptr, type) \
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154 ((ptr = (char *) ALIGN_PTR (ptr, ALIGNOF (type))), PDUMP_READ (ptr, type))
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155
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156
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157
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452
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158 typedef struct
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159 {
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442
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160 const struct lrecord_description *desc;
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161 int count;
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162 } pdump_reloc_table;
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163
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164 static char *pdump_rt_list = 0;
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165
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166 void
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167 pdump_objects_unmark (void)
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168 {
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169 int i;
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170 char *p = pdump_rt_list;
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171 if (p)
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172 for (;;)
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173 {
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174 pdump_reloc_table *rt = (pdump_reloc_table *)p;
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175 p += sizeof (pdump_reloc_table);
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176 if (rt->desc)
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177 {
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178 for (i=0; i<rt->count; i++)
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179 {
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180 struct lrecord_header *lh = * (struct lrecord_header **) p;
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181 if (! C_READONLY_RECORD_HEADER_P (lh))
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182 UNMARK_RECORD_HEADER (lh);
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183 p += sizeof (EMACS_INT);
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184 }
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185 } else
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186 break;
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187 }
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188 }
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189
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190
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191 /* The structure of the file
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458
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192 0 - header
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193 - dumped objects
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194 stab_offset - nb_root_struct_ptrs*pair(void *, adr)
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195 for pointers to structures
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196 - nb_opaques*pair(void *, size) for raw bits to restore
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197 - relocation table
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198 - root lisp object address/value couples with the count
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199 preceding the list
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442
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200 */
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201
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202
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452
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203 #define PDUMP_SIGNATURE "XEmacsDP"
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204 #define PDUMP_SIGNATURE_LEN (sizeof (PDUMP_SIGNATURE) - 1)
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442
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205
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206 typedef struct
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207 {
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452
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208 char signature[PDUMP_SIGNATURE_LEN];
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442
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209 unsigned int id;
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210 EMACS_UINT stab_offset;
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211 EMACS_UINT reloc_address;
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452
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212 int nb_root_struct_ptrs;
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213 int nb_opaques;
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214 } pdump_header;
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442
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215
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458
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216 char *pdump_start;
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217 char *pdump_end;
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442
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218 static size_t pdump_length;
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219
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220 #ifdef WIN32_NATIVE
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452
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221 /* Handle for the dump file */
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458
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222 static HANDLE pdump_hFile = INVALID_HANDLE_VALUE;
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452
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223 /* Handle for the file mapping object for the dump file */
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458
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224 static HANDLE pdump_hMap = INVALID_HANDLE_VALUE;
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442
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225 #endif
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226
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458
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227 static void (*pdump_free) (void);
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442
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228
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460
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229 static unsigned char pdump_align_table[] =
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442
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230 {
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460
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231 64, 1, 2, 1, 4, 1, 2, 1, 8, 1, 2, 1, 4, 1, 2, 1,
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232 16, 1, 2, 1, 4, 1, 2, 1, 8, 1, 2, 1, 4, 1, 2, 1,
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233 32, 1, 2, 1, 4, 1, 2, 1, 8, 1, 2, 1, 4, 1, 2, 1,
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234 16, 1, 2, 1, 4, 1, 2, 1, 8, 1, 2, 1, 4, 1, 2, 1
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442
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235 };
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236
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460
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237 static inline unsigned int
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238 pdump_size_to_align (size_t size)
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442
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239 {
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460
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240 return pdump_align_table[size % countof (pdump_align_table)];
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241 }
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242
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243 typedef struct pdump_entry_list_elt
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244 {
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245 struct pdump_entry_list_elt *next;
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442
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246 const void *obj;
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247 size_t size;
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248 int count;
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249 EMACS_INT save_offset;
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460
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250 } pdump_entry_list_elt;
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442
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251
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252 typedef struct
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253 {
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460
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254 pdump_entry_list_elt *first;
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442
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255 int align;
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256 int count;
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257 } pdump_entry_list;
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258
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460
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259 typedef struct pdump_struct_list_elt
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442
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260 {
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261 pdump_entry_list list;
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262 const struct struct_description *sdesc;
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460
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263 } pdump_struct_list_elt;
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442
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264
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265 typedef struct
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266 {
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460
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267 pdump_struct_list_elt *list;
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442
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268 int count;
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269 int size;
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270 } pdump_struct_list;
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271
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460
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272 static pdump_entry_list *pdump_object_table;
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442
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273 static pdump_entry_list pdump_opaque_data_list;
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274 static pdump_struct_list pdump_struct_table;
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275
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460
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276 static int *pdump_alert_undump_object;
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442
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277
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278 static unsigned long cur_offset;
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279 static size_t max_size;
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280 static int pdump_fd;
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281 static void *pdump_buf;
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458
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282 static FILE *pdump_out;
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442
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283
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284 #define PDUMP_HASHSIZE 200001
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285
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460
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286 static pdump_entry_list_elt **pdump_hash;
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442
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287
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288 /* Since most pointers are eight bytes aligned, the >>3 allows for a better hash */
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289 static int
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290 pdump_make_hash (const void *obj)
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291 {
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292 return ((unsigned long)(obj)>>3) % PDUMP_HASHSIZE;
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293 }
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294
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460
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295 static pdump_entry_list_elt *
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442
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296 pdump_get_entry (const void *obj)
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297 {
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298 int pos = pdump_make_hash (obj);
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460
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299 pdump_entry_list_elt *e;
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442
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300
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301 assert (obj != 0);
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302
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303 while ((e = pdump_hash[pos]) != 0)
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304 {
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305 if (e->obj == obj)
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306 return e;
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307
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308 pos++;
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309 if (pos == PDUMP_HASHSIZE)
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310 pos = 0;
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311 }
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312 return 0;
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313 }
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314
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315 static void
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458
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316 pdump_add_entry (pdump_entry_list *list, const void *obj, size_t size,
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317 int count)
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442
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318 {
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460
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319 pdump_entry_list_elt *e;
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442
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320 int pos = pdump_make_hash (obj);
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321
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322 while ((e = pdump_hash[pos]) != 0)
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323 {
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324 if (e->obj == obj)
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325 return;
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326
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327 pos++;
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328 if (pos == PDUMP_HASHSIZE)
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329 pos = 0;
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330 }
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331
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460
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332 e = xnew (pdump_entry_list_elt);
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442
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333
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334 e->next = list->first;
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335 e->obj = obj;
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336 e->size = size;
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337 e->count = count;
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338 list->first = e;
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339
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340 list->count += count;
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341 pdump_hash[pos] = e;
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342
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460
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343 {
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344 int align = pdump_size_to_align (size);
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442
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345
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460
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346 if (align < list->align)
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347 list->align = align;
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348 }
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442
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349 }
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350
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351 static pdump_entry_list *
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352 pdump_get_entry_list (const struct struct_description *sdesc)
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353 {
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354 int i;
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355 for (i=0; i<pdump_struct_table.count; i++)
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356 if (pdump_struct_table.list[i].sdesc == sdesc)
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357 return &pdump_struct_table.list[i].list;
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358
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359 if (pdump_struct_table.size <= pdump_struct_table.count)
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360 {
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361 if (pdump_struct_table.size == -1)
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362 pdump_struct_table.size = 10;
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363 else
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364 pdump_struct_table.size = pdump_struct_table.size * 2;
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460
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365 pdump_struct_table.list = (pdump_struct_list_elt *)
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442
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366 xrealloc (pdump_struct_table.list,
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460
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367 pdump_struct_table.size * sizeof (pdump_struct_list_elt));
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442
|
368 }
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369 pdump_struct_table.list[pdump_struct_table.count].list.first = 0;
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460
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370 pdump_struct_table.list[pdump_struct_table.count].list.align = ALIGNOF (max_align_t);
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442
|
371 pdump_struct_table.list[pdump_struct_table.count].list.count = 0;
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372 pdump_struct_table.list[pdump_struct_table.count].sdesc = sdesc;
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373
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374 return &pdump_struct_table.list[pdump_struct_table.count++].list;
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|
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375 }
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376
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|
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377 static struct
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|
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378 {
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379 struct lrecord_header *obj;
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|
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380 int position;
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|
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381 int offset;
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|
|
382 } backtrace[65536];
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383
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384 static int depth;
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385
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452
|
386 static void
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387 pdump_backtrace (void)
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|
442
|
388 {
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|
|
389 int i;
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|
|
390 stderr_out ("pdump backtrace :\n");
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|
|
391 for (i=0;i<depth;i++)
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|
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392 {
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|
|
393 if (!backtrace[i].obj)
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|
458
|
394 stderr_out (" - ind. (%d, %d)\n",
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|
|
395 backtrace[i].position,
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|
|
396 backtrace[i].offset);
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|
442
|
397 else
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|
|
398 {
|
|
|
399 stderr_out (" - %s (%d, %d)\n",
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|
458
|
400 LHEADER_IMPLEMENTATION (backtrace[i].obj)->name,
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|
|
401 backtrace[i].position,
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|
|
402 backtrace[i].offset);
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442
|
403 }
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|
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404 }
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|
|
405 }
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|
|
406
|
|
|
407 static void pdump_register_object (Lisp_Object obj);
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|
458
|
408 static void pdump_register_struct (const void *data,
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|
|
409 const struct struct_description *sdesc,
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|
|
410 int count);
|
|
442
|
411
|
|
|
412 static EMACS_INT
|
|
458
|
413 pdump_get_indirect_count (EMACS_INT code,
|
|
|
414 const struct lrecord_description *idesc,
|
|
|
415 const void *idata)
|
|
442
|
416 {
|
|
|
417 EMACS_INT count;
|
|
|
418 const void *irdata;
|
|
|
419
|
|
|
420 int line = XD_INDIRECT_VAL (code);
|
|
|
421 int delta = XD_INDIRECT_DELTA (code);
|
|
|
422
|
|
|
423 irdata = ((char *)idata) + idesc[line].offset;
|
|
|
424 switch (idesc[line].type)
|
|
|
425 {
|
|
|
426 case XD_SIZE_T:
|
|
|
427 count = *(size_t *)irdata;
|
|
|
428 break;
|
|
|
429 case XD_INT:
|
|
|
430 count = *(int *)irdata;
|
|
|
431 break;
|
|
|
432 case XD_LONG:
|
|
|
433 count = *(long *)irdata;
|
|
|
434 break;
|
|
|
435 case XD_BYTECOUNT:
|
|
|
436 count = *(Bytecount *)irdata;
|
|
|
437 break;
|
|
|
438 default:
|
|
458
|
439 stderr_out ("Unsupported count type : %d (line = %d, code=%ld)\n",
|
|
|
440 idesc[line].type, line, (long)code);
|
|
442
|
441 pdump_backtrace ();
|
|
|
442 abort ();
|
|
|
443 }
|
|
|
444 count += delta;
|
|
|
445 return count;
|
|
|
446 }
|
|
|
447
|
|
|
448 static void
|
|
|
449 pdump_register_sub (const void *data, const struct lrecord_description *desc, int me)
|
|
|
450 {
|
|
|
451 int pos;
|
|
|
452
|
|
|
453 restart:
|
|
|
454 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
455 {
|
|
|
456 const void *rdata = (const char *)data + desc[pos].offset;
|
|
|
457
|
|
|
458 backtrace[me].position = pos;
|
|
|
459 backtrace[me].offset = desc[pos].offset;
|
|
|
460
|
|
|
461 switch (desc[pos].type)
|
|
|
462 {
|
|
|
463 case XD_SPECIFIER_END:
|
|
|
464 pos = 0;
|
|
|
465 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
466 goto restart;
|
|
|
467 case XD_SIZE_T:
|
|
|
468 case XD_INT:
|
|
|
469 case XD_LONG:
|
|
|
470 case XD_BYTECOUNT:
|
|
|
471 case XD_INT_RESET:
|
|
|
472 case XD_LO_LINK:
|
|
|
473 break;
|
|
|
474 case XD_OPAQUE_DATA_PTR:
|
|
|
475 {
|
|
|
476 EMACS_INT count = desc[pos].data1;
|
|
|
477 if (XD_IS_INDIRECT (count))
|
|
|
478 count = pdump_get_indirect_count (count, desc, data);
|
|
|
479
|
|
|
480 pdump_add_entry (&pdump_opaque_data_list,
|
|
458
|
481 *(void **)rdata, count, 1);
|
|
442
|
482 break;
|
|
|
483 }
|
|
|
484 case XD_C_STRING:
|
|
|
485 {
|
|
|
486 const char *str = *(const char **)rdata;
|
|
|
487 if (str)
|
|
458
|
488 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1);
|
|
442
|
489 break;
|
|
|
490 }
|
|
|
491 case XD_DOC_STRING:
|
|
|
492 {
|
|
|
493 const char *str = *(const char **)rdata;
|
|
|
494 if ((EMACS_INT)str > 0)
|
|
458
|
495 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1);
|
|
442
|
496 break;
|
|
|
497 }
|
|
|
498 case XD_LISP_OBJECT:
|
|
|
499 {
|
|
|
500 const Lisp_Object *pobj = (const Lisp_Object *)rdata;
|
|
|
501
|
|
|
502 assert (desc[pos].data1 == 0);
|
|
|
503
|
|
|
504 backtrace[me].offset = (const char *)pobj - (const char *)data;
|
|
|
505 pdump_register_object (*pobj);
|
|
|
506 break;
|
|
|
507 }
|
|
|
508 case XD_LISP_OBJECT_ARRAY:
|
|
|
509 {
|
|
|
510 int i;
|
|
|
511 EMACS_INT count = desc[pos].data1;
|
|
|
512 if (XD_IS_INDIRECT (count))
|
|
|
513 count = pdump_get_indirect_count (count, desc, data);
|
|
|
514
|
|
|
515 for (i = 0; i < count; i++)
|
|
|
516 {
|
|
|
517 const Lisp_Object *pobj = ((const Lisp_Object *)rdata) + i;
|
|
|
518 Lisp_Object dobj = *pobj;
|
|
|
519
|
|
|
520 backtrace[me].offset = (const char *)pobj - (const char *)data;
|
|
|
521 pdump_register_object (dobj);
|
|
|
522 }
|
|
|
523 break;
|
|
|
524 }
|
|
|
525 case XD_STRUCT_PTR:
|
|
|
526 {
|
|
|
527 EMACS_INT count = desc[pos].data1;
|
|
|
528 const struct struct_description *sdesc = desc[pos].data2;
|
|
|
529 const char *dobj = *(const char **)rdata;
|
|
|
530 if (dobj)
|
|
|
531 {
|
|
|
532 if (XD_IS_INDIRECT (count))
|
|
|
533 count = pdump_get_indirect_count (count, desc, data);
|
|
|
534
|
|
|
535 pdump_register_struct (dobj, sdesc, count);
|
|
|
536 }
|
|
|
537 break;
|
|
|
538 }
|
|
|
539 default:
|
|
|
540 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
541 pdump_backtrace ();
|
|
|
542 abort ();
|
|
|
543 };
|
|
|
544 }
|
|
|
545 }
|
|
|
546
|
|
|
547 static void
|
|
|
548 pdump_register_object (Lisp_Object obj)
|
|
|
549 {
|
|
|
550 struct lrecord_header *objh;
|
|
458
|
551 const struct lrecord_implementation *imp;
|
|
442
|
552
|
|
|
553 if (!POINTER_TYPE_P (XTYPE (obj)))
|
|
|
554 return;
|
|
|
555
|
|
|
556 objh = XRECORD_LHEADER (obj);
|
|
|
557 if (!objh)
|
|
|
558 return;
|
|
|
559
|
|
|
560 if (pdump_get_entry (objh))
|
|
|
561 return;
|
|
|
562
|
|
458
|
563 imp = LHEADER_IMPLEMENTATION (objh);
|
|
|
564
|
|
|
565 if (imp->description)
|
|
442
|
566 {
|
|
|
567 int me = depth++;
|
|
|
568 if (me>65536)
|
|
|
569 {
|
|
|
570 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
571 abort ();
|
|
|
572 }
|
|
|
573 backtrace[me].obj = objh;
|
|
|
574 backtrace[me].position = 0;
|
|
|
575 backtrace[me].offset = 0;
|
|
|
576
|
|
|
577 pdump_add_entry (pdump_object_table + objh->type,
|
|
|
578 objh,
|
|
458
|
579 imp->static_size ?
|
|
|
580 imp->static_size :
|
|
|
581 imp->size_in_bytes_method (objh),
|
|
442
|
582 1);
|
|
458
|
583 pdump_register_sub (objh, imp->description, me);
|
|
442
|
584 --depth;
|
|
|
585 }
|
|
|
586 else
|
|
|
587 {
|
|
|
588 pdump_alert_undump_object[objh->type]++;
|
|
458
|
589 stderr_out ("Undumpable object type : %s\n", imp->name);
|
|
442
|
590 pdump_backtrace ();
|
|
|
591 }
|
|
|
592 }
|
|
|
593
|
|
|
594 static void
|
|
458
|
595 pdump_register_struct (const void *data,
|
|
|
596 const struct struct_description *sdesc,
|
|
|
597 int count)
|
|
442
|
598 {
|
|
|
599 if (data && !pdump_get_entry (data))
|
|
|
600 {
|
|
|
601 int me = depth++;
|
|
|
602 int i;
|
|
|
603 if (me>65536)
|
|
|
604 {
|
|
|
605 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
606 abort ();
|
|
|
607 }
|
|
|
608 backtrace[me].obj = 0;
|
|
|
609 backtrace[me].position = 0;
|
|
|
610 backtrace[me].offset = 0;
|
|
|
611
|
|
|
612 pdump_add_entry (pdump_get_entry_list (sdesc),
|
|
458
|
613 data, sdesc->size, count);
|
|
442
|
614 for (i=0; i<count; i++)
|
|
|
615 {
|
|
|
616 pdump_register_sub (((char *)data) + sdesc->size*i,
|
|
|
617 sdesc->description,
|
|
|
618 me);
|
|
|
619 }
|
|
|
620 --depth;
|
|
|
621 }
|
|
|
622 }
|
|
|
623
|
|
|
624 static void
|
|
460
|
625 pdump_dump_data (pdump_entry_list_elt *elt,
|
|
458
|
626 const struct lrecord_description *desc)
|
|
442
|
627 {
|
|
460
|
628 size_t size = elt->size;
|
|
|
629 int count = elt->count;
|
|
442
|
630 if (desc)
|
|
|
631 {
|
|
|
632 int pos, i;
|
|
460
|
633 memcpy (pdump_buf, elt->obj, size*count);
|
|
442
|
634
|
|
|
635 for (i=0; i<count; i++)
|
|
|
636 {
|
|
|
637 char *cur = ((char *)pdump_buf) + i*size;
|
|
|
638 restart:
|
|
|
639 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
640 {
|
|
|
641 void *rdata = cur + desc[pos].offset;
|
|
|
642 switch (desc[pos].type)
|
|
|
643 {
|
|
|
644 case XD_SPECIFIER_END:
|
|
460
|
645 desc = ((const Lisp_Specifier *)(elt->obj))->methods->extra_description;
|
|
442
|
646 goto restart;
|
|
|
647 case XD_SIZE_T:
|
|
|
648 case XD_INT:
|
|
|
649 case XD_LONG:
|
|
|
650 case XD_BYTECOUNT:
|
|
|
651 break;
|
|
|
652 case XD_INT_RESET:
|
|
|
653 {
|
|
|
654 EMACS_INT val = desc[pos].data1;
|
|
|
655 if (XD_IS_INDIRECT (val))
|
|
460
|
656 val = pdump_get_indirect_count (val, desc, elt->obj);
|
|
442
|
657 *(int *)rdata = val;
|
|
|
658 break;
|
|
|
659 }
|
|
|
660 case XD_OPAQUE_DATA_PTR:
|
|
|
661 case XD_C_STRING:
|
|
|
662 case XD_STRUCT_PTR:
|
|
|
663 {
|
|
|
664 void *ptr = *(void **)rdata;
|
|
|
665 if (ptr)
|
|
|
666 *(EMACS_INT *)rdata = pdump_get_entry (ptr)->save_offset;
|
|
|
667 break;
|
|
|
668 }
|
|
|
669 case XD_LO_LINK:
|
|
|
670 {
|
|
|
671 Lisp_Object obj = *(Lisp_Object *)rdata;
|
|
460
|
672 pdump_entry_list_elt *elt1;
|
|
442
|
673 for (;;)
|
|
|
674 {
|
|
460
|
675 elt1 = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
676 if (elt1)
|
|
442
|
677 break;
|
|
|
678 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
679 }
|
|
460
|
680 *(EMACS_INT *)rdata = elt1->save_offset;
|
|
442
|
681 break;
|
|
|
682 }
|
|
|
683 case XD_LISP_OBJECT:
|
|
|
684 {
|
|
|
685 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
686
|
|
|
687 assert (desc[pos].data1 == 0);
|
|
|
688
|
|
|
689 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
690 *(EMACS_INT *)pobj =
|
|
|
691 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
692 break;
|
|
|
693 }
|
|
|
694 case XD_LISP_OBJECT_ARRAY:
|
|
|
695 {
|
|
|
696 EMACS_INT num = desc[pos].data1;
|
|
|
697 int j;
|
|
|
698 if (XD_IS_INDIRECT (num))
|
|
460
|
699 num = pdump_get_indirect_count (num, desc, elt->obj);
|
|
442
|
700
|
|
|
701 for (j=0; j<num; j++)
|
|
|
702 {
|
|
|
703 Lisp_Object *pobj = ((Lisp_Object *)rdata) + j;
|
|
|
704 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
705 *(EMACS_INT *)pobj =
|
|
|
706 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
707 }
|
|
|
708 break;
|
|
|
709 }
|
|
|
710 case XD_DOC_STRING:
|
|
|
711 {
|
|
|
712 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
713 if (str > 0)
|
|
|
714 *(EMACS_INT *)rdata = pdump_get_entry ((void *)str)->save_offset;
|
|
|
715 break;
|
|
|
716 }
|
|
|
717 default:
|
|
|
718 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
719 abort ();
|
|
458
|
720 }
|
|
442
|
721 }
|
|
|
722 }
|
|
|
723 }
|
|
460
|
724 fwrite (desc ? pdump_buf : elt->obj, size, count, pdump_out);
|
|
442
|
725 }
|
|
|
726
|
|
|
727 static void
|
|
458
|
728 pdump_reloc_one (void *data, EMACS_INT delta,
|
|
|
729 const struct lrecord_description *desc)
|
|
442
|
730 {
|
|
|
731 int pos;
|
|
|
732
|
|
|
733 restart:
|
|
|
734 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
735 {
|
|
|
736 void *rdata = (char *)data + desc[pos].offset;
|
|
|
737 switch (desc[pos].type)
|
|
|
738 {
|
|
|
739 case XD_SPECIFIER_END:
|
|
|
740 pos = 0;
|
|
|
741 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
742 goto restart;
|
|
|
743 case XD_SIZE_T:
|
|
|
744 case XD_INT:
|
|
|
745 case XD_LONG:
|
|
|
746 case XD_BYTECOUNT:
|
|
|
747 case XD_INT_RESET:
|
|
|
748 break;
|
|
|
749 case XD_OPAQUE_DATA_PTR:
|
|
|
750 case XD_C_STRING:
|
|
|
751 case XD_STRUCT_PTR:
|
|
|
752 case XD_LO_LINK:
|
|
|
753 {
|
|
|
754 EMACS_INT ptr = *(EMACS_INT *)rdata;
|
|
|
755 if (ptr)
|
|
|
756 *(EMACS_INT *)rdata = ptr+delta;
|
|
|
757 break;
|
|
|
758 }
|
|
|
759 case XD_LISP_OBJECT:
|
|
|
760 {
|
|
|
761 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
762
|
|
|
763 assert (desc[pos].data1 == 0);
|
|
|
764
|
|
|
765 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
766 && ! EQ (*pobj, Qnull_pointer))
|
|
|
767 XSETOBJ (*pobj, (char *) XPNTR (*pobj) + delta);
|
|
|
768
|
|
|
769 break;
|
|
|
770 }
|
|
|
771 case XD_LISP_OBJECT_ARRAY:
|
|
|
772 {
|
|
|
773 EMACS_INT num = desc[pos].data1;
|
|
|
774 int j;
|
|
|
775 if (XD_IS_INDIRECT (num))
|
|
|
776 num = pdump_get_indirect_count (num, desc, data);
|
|
|
777
|
|
|
778 for (j=0; j<num; j++)
|
|
|
779 {
|
|
|
780 Lisp_Object *pobj = (Lisp_Object *) rdata + j;
|
|
|
781
|
|
|
782 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
783 && ! EQ (*pobj, Qnull_pointer))
|
|
|
784 XSETOBJ (*pobj, (char *) XPNTR (*pobj) + delta);
|
|
|
785 }
|
|
|
786 break;
|
|
|
787 }
|
|
|
788 case XD_DOC_STRING:
|
|
|
789 {
|
|
|
790 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
791 if (str > 0)
|
|
|
792 *(EMACS_INT *)rdata = str + delta;
|
|
|
793 break;
|
|
|
794 }
|
|
|
795 default:
|
|
|
796 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
797 abort ();
|
|
|
798 };
|
|
|
799 }
|
|
|
800 }
|
|
|
801
|
|
|
802 static void
|
|
460
|
803 pdump_allocate_offset (pdump_entry_list_elt *elt,
|
|
458
|
804 const struct lrecord_description *desc)
|
|
442
|
805 {
|
|
460
|
806 size_t size = elt->count * elt->size;
|
|
|
807 elt->save_offset = cur_offset;
|
|
442
|
808 if (size>max_size)
|
|
|
809 max_size = size;
|
|
|
810 cur_offset += size;
|
|
|
811 }
|
|
|
812
|
|
|
813 static void
|
|
460
|
814 pdump_scan_by_alignment (void (*f)(pdump_entry_list_elt *,
|
|
458
|
815 const struct lrecord_description *))
|
|
442
|
816 {
|
|
460
|
817 int align;
|
|
|
818
|
|
|
819 for (align = ALIGNOF (max_align_t); align; align>>=1)
|
|
442
|
820 {
|
|
460
|
821 int i;
|
|
|
822 pdump_entry_list_elt *elt;
|
|
|
823
|
|
442
|
824 for (i=0; i<lrecord_type_count; i++)
|
|
|
825 if (pdump_object_table[i].align == align)
|
|
460
|
826 for (elt = pdump_object_table[i].first; elt; elt = elt->next)
|
|
|
827 f (elt, lrecord_implementations_table[i]->description);
|
|
442
|
828
|
|
|
829 for (i=0; i<pdump_struct_table.count; i++)
|
|
460
|
830 {
|
|
|
831 pdump_struct_list_elt list = pdump_struct_table.list[i];
|
|
|
832 if (list.list.align == align)
|
|
|
833 for (elt = list.list.first; elt; elt = elt->next)
|
|
|
834 f (elt, list.sdesc->description);
|
|
|
835 }
|
|
442
|
836
|
|
460
|
837 for (elt = pdump_opaque_data_list.first; elt; elt = elt->next)
|
|
|
838 if (pdump_size_to_align (elt->size) == align)
|
|
|
839 f (elt, 0);
|
|
442
|
840 }
|
|
|
841 }
|
|
|
842
|
|
|
843 static void
|
|
458
|
844 pdump_dump_root_struct_ptrs (void)
|
|
442
|
845 {
|
|
|
846 int i;
|
|
458
|
847 size_t count = Dynarr_length (pdump_root_struct_ptrs);
|
|
|
848 pdump_static_pointer *data = alloca_array (pdump_static_pointer, count);
|
|
|
849 for (i = 0; i < count; i++)
|
|
442
|
850 {
|
|
458
|
851 data[i].address = (char **) Dynarr_atp (pdump_root_struct_ptrs, i)->ptraddress;
|
|
|
852 data[i].value = (char *) pdump_get_entry (* data[i].address)->save_offset;
|
|
442
|
853 }
|
|
458
|
854 PDUMP_ALIGN_OUTPUT (pdump_static_pointer);
|
|
|
855 fwrite (data, sizeof (pdump_static_pointer), count, pdump_out);
|
|
442
|
856 }
|
|
|
857
|
|
|
858 static void
|
|
452
|
859 pdump_dump_opaques (void)
|
|
442
|
860 {
|
|
|
861 int i;
|
|
452
|
862 for (i = 0; i < Dynarr_length (pdump_opaques); i++)
|
|
442
|
863 {
|
|
452
|
864 pdump_opaque *info = Dynarr_atp (pdump_opaques, i);
|
|
458
|
865 PDUMP_WRITE_ALIGNED (pdump_opaque, *info);
|
|
|
866 fwrite (info->varaddress, info->size, 1, pdump_out);
|
|
442
|
867 }
|
|
|
868 }
|
|
|
869
|
|
|
870 static void
|
|
|
871 pdump_dump_rtables (void)
|
|
|
872 {
|
|
452
|
873 int i;
|
|
460
|
874 pdump_entry_list_elt *elt;
|
|
442
|
875 pdump_reloc_table rt;
|
|
|
876
|
|
|
877 for (i=0; i<lrecord_type_count; i++)
|
|
|
878 {
|
|
460
|
879 elt = pdump_object_table[i].first;
|
|
|
880 if (!elt)
|
|
442
|
881 continue;
|
|
|
882 rt.desc = lrecord_implementations_table[i]->description;
|
|
|
883 rt.count = pdump_object_table[i].count;
|
|
458
|
884 PDUMP_WRITE_ALIGNED (pdump_reloc_table, rt);
|
|
460
|
885 while (elt)
|
|
442
|
886 {
|
|
460
|
887 EMACS_INT rdata = pdump_get_entry (elt->obj)->save_offset;
|
|
458
|
888 PDUMP_WRITE_ALIGNED (EMACS_INT, rdata);
|
|
460
|
889 elt = elt->next;
|
|
442
|
890 }
|
|
|
891 }
|
|
|
892
|
|
|
893 rt.desc = 0;
|
|
|
894 rt.count = 0;
|
|
458
|
895 PDUMP_WRITE_ALIGNED (pdump_reloc_table, rt);
|
|
442
|
896
|
|
|
897 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
898 {
|
|
460
|
899 elt = pdump_struct_table.list[i].list.first;
|
|
442
|
900 rt.desc = pdump_struct_table.list[i].sdesc->description;
|
|
|
901 rt.count = pdump_struct_table.list[i].list.count;
|
|
458
|
902 PDUMP_WRITE_ALIGNED (pdump_reloc_table, rt);
|
|
460
|
903 while (elt)
|
|
442
|
904 {
|
|
460
|
905 EMACS_INT rdata = pdump_get_entry (elt->obj)->save_offset;
|
|
452
|
906 int j;
|
|
460
|
907 for (j=0; j<elt->count; j++)
|
|
442
|
908 {
|
|
458
|
909 PDUMP_WRITE_ALIGNED (EMACS_INT, rdata);
|
|
460
|
910 rdata += elt->size;
|
|
442
|
911 }
|
|
460
|
912 elt = elt->next;
|
|
442
|
913 }
|
|
|
914 }
|
|
|
915 rt.desc = 0;
|
|
|
916 rt.count = 0;
|
|
458
|
917 PDUMP_WRITE_ALIGNED (pdump_reloc_table, rt);
|
|
442
|
918 }
|
|
|
919
|
|
|
920 static void
|
|
458
|
921 pdump_dump_root_objects (void)
|
|
442
|
922 {
|
|
458
|
923 size_t count = (Dynarr_length (pdump_root_objects) +
|
|
|
924 Dynarr_length (pdump_weak_object_chains));
|
|
452
|
925 size_t i;
|
|
442
|
926
|
|
458
|
927 PDUMP_WRITE_ALIGNED (size_t, count);
|
|
|
928 PDUMP_ALIGN_OUTPUT (pdump_static_Lisp_Object);
|
|
442
|
929
|
|
452
|
930 for (i=0; i<Dynarr_length (pdump_root_objects); i++)
|
|
442
|
931 {
|
|
458
|
932 pdump_static_Lisp_Object obj;
|
|
|
933 obj.address = Dynarr_at (pdump_root_objects, i);
|
|
|
934 obj.value = * obj.address;
|
|
460
|
935
|
|
458
|
936 if (POINTER_TYPE_P (XTYPE (obj.value)))
|
|
|
937 obj.value = wrap_object ((void *) pdump_get_entry (XRECORD_LHEADER (obj.value))->save_offset);
|
|
460
|
938
|
|
458
|
939 PDUMP_WRITE (pdump_static_Lisp_Object, obj);
|
|
442
|
940 }
|
|
|
941
|
|
452
|
942 for (i=0; i<Dynarr_length (pdump_weak_object_chains); i++)
|
|
442
|
943 {
|
|
460
|
944 pdump_entry_list_elt *elt;
|
|
458
|
945 pdump_static_Lisp_Object obj;
|
|
442
|
946
|
|
458
|
947 obj.address = Dynarr_at (pdump_weak_object_chains, i);
|
|
|
948 obj.value = * obj.address;
|
|
460
|
949
|
|
442
|
950 for (;;)
|
|
|
951 {
|
|
|
952 const struct lrecord_description *desc;
|
|
|
953 int pos;
|
|
460
|
954 elt = pdump_get_entry (XRECORD_LHEADER (obj.value));
|
|
|
955 if (elt)
|
|
442
|
956 break;
|
|
458
|
957 desc = XRECORD_LHEADER_IMPLEMENTATION (obj.value)->description;
|
|
442
|
958 for (pos = 0; desc[pos].type != XD_LO_LINK; pos++)
|
|
|
959 assert (desc[pos].type != XD_END);
|
|
|
960
|
|
458
|
961 obj.value = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj.value)));
|
|
442
|
962 }
|
|
460
|
963 obj.value = wrap_object ((void *) elt->save_offset);
|
|
442
|
964
|
|
458
|
965 PDUMP_WRITE (pdump_static_Lisp_Object, obj);
|
|
442
|
966 }
|
|
|
967 }
|
|
|
968
|
|
|
969 void
|
|
|
970 pdump (void)
|
|
|
971 {
|
|
|
972 int i;
|
|
|
973 Lisp_Object t_console, t_device, t_frame;
|
|
|
974 int none;
|
|
458
|
975 pdump_header header;
|
|
442
|
976
|
|
460
|
977 pdump_object_table = xnew_array (pdump_entry_list, lrecord_type_count);
|
|
|
978 pdump_alert_undump_object = xnew_array (int, lrecord_type_count);
|
|
|
979
|
|
|
980 assert (ALIGNOF (max_align_t) <= pdump_align_table[0]);
|
|
|
981
|
|
|
982 for (i = 0; i < countof (pdump_align_table); i++)
|
|
|
983 if (pdump_align_table[i] > ALIGNOF (max_align_t))
|
|
|
984 pdump_align_table[i] = ALIGNOF (max_align_t);
|
|
|
985
|
|
446
|
986 flush_all_buffer_local_cache ();
|
|
|
987
|
|
442
|
988 /* These appear in a DEFVAR_LISP, which does a staticpro() */
|
|
452
|
989 t_console = Vterminal_console; Vterminal_console = Qnil;
|
|
|
990 t_frame = Vterminal_frame; Vterminal_frame = Qnil;
|
|
|
991 t_device = Vterminal_device; Vterminal_device = Qnil;
|
|
442
|
992
|
|
452
|
993 dump_add_opaque (&lrecord_implementations_table,
|
|
|
994 lrecord_type_count * sizeof (lrecord_implementations_table[0]));
|
|
|
995 dump_add_opaque (&lrecord_markers,
|
|
|
996 lrecord_type_count * sizeof (lrecord_markers[0]));
|
|
442
|
997
|
|
460
|
998 pdump_hash = xnew_array_and_zero (pdump_entry_list_elt *, PDUMP_HASHSIZE);
|
|
442
|
999
|
|
|
1000 for (i=0; i<lrecord_type_count; i++)
|
|
|
1001 {
|
|
|
1002 pdump_object_table[i].first = 0;
|
|
460
|
1003 pdump_object_table[i].align = ALIGNOF (max_align_t);
|
|
442
|
1004 pdump_object_table[i].count = 0;
|
|
|
1005 pdump_alert_undump_object[i] = 0;
|
|
|
1006 }
|
|
|
1007 pdump_struct_table.count = 0;
|
|
|
1008 pdump_struct_table.size = -1;
|
|
|
1009
|
|
|
1010 pdump_opaque_data_list.first = 0;
|
|
460
|
1011 pdump_opaque_data_list.align = ALIGNOF (max_align_t);
|
|
442
|
1012 pdump_opaque_data_list.count = 0;
|
|
|
1013 depth = 0;
|
|
|
1014
|
|
452
|
1015 for (i=0; i<Dynarr_length (pdump_root_objects); i++)
|
|
|
1016 pdump_register_object (* Dynarr_at (pdump_root_objects, i));
|
|
442
|
1017
|
|
|
1018 none = 1;
|
|
|
1019 for (i=0; i<lrecord_type_count; i++)
|
|
|
1020 if (pdump_alert_undump_object[i])
|
|
|
1021 {
|
|
|
1022 if (none)
|
|
|
1023 printf ("Undumpable types list :\n");
|
|
|
1024 none = 0;
|
|
|
1025 printf (" - %s (%d)\n", lrecord_implementations_table[i]->name, pdump_alert_undump_object[i]);
|
|
|
1026 }
|
|
|
1027 if (!none)
|
|
|
1028 return;
|
|
|
1029
|
|
452
|
1030 for (i=0; i<Dynarr_length (pdump_root_struct_ptrs); i++)
|
|
|
1031 {
|
|
|
1032 pdump_root_struct_ptr info = Dynarr_at (pdump_root_struct_ptrs, i);
|
|
|
1033 pdump_register_struct (*(info.ptraddress), info.desc, 1);
|
|
|
1034 }
|
|
442
|
1035
|
|
458
|
1036 memcpy (header.signature, PDUMP_SIGNATURE, PDUMP_SIGNATURE_LEN);
|
|
|
1037 header.id = dump_id;
|
|
|
1038 header.reloc_address = 0;
|
|
|
1039 header.nb_root_struct_ptrs = Dynarr_length (pdump_root_struct_ptrs);
|
|
|
1040 header.nb_opaques = Dynarr_length (pdump_opaques);
|
|
442
|
1041
|
|
458
|
1042 cur_offset = ALIGN_SIZE (sizeof (header), ALIGNOF (max_align_t));
|
|
442
|
1043 max_size = 0;
|
|
|
1044
|
|
|
1045 pdump_scan_by_alignment (pdump_allocate_offset);
|
|
458
|
1046 cur_offset = ALIGN_SIZE (cur_offset, ALIGNOF (max_align_t));
|
|
|
1047 header.stab_offset = cur_offset;
|
|
442
|
1048
|
|
|
1049 pdump_buf = xmalloc (max_size);
|
|
|
1050 /* Avoid use of the `open' macro. We want the real function. */
|
|
|
1051 #undef open
|
|
|
1052 pdump_fd = open (EMACS_PROGNAME ".dmp",
|
|
|
1053 O_WRONLY | O_CREAT | O_TRUNC | OPEN_BINARY, 0666);
|
|
458
|
1054 pdump_out = fdopen (pdump_fd, "w");
|
|
442
|
1055
|
|
458
|
1056 fwrite (&header, sizeof (header), 1, pdump_out);
|
|
|
1057 PDUMP_ALIGN_OUTPUT (max_align_t);
|
|
442
|
1058
|
|
|
1059 pdump_scan_by_alignment (pdump_dump_data);
|
|
|
1060
|
|
458
|
1061 fseek (pdump_out, header.stab_offset, SEEK_SET);
|
|
442
|
1062
|
|
458
|
1063 pdump_dump_root_struct_ptrs ();
|
|
452
|
1064 pdump_dump_opaques ();
|
|
442
|
1065 pdump_dump_rtables ();
|
|
458
|
1066 pdump_dump_root_objects ();
|
|
442
|
1067
|
|
458
|
1068 fclose (pdump_out);
|
|
442
|
1069 close (pdump_fd);
|
|
458
|
1070
|
|
442
|
1071 free (pdump_buf);
|
|
|
1072
|
|
|
1073 free (pdump_hash);
|
|
|
1074
|
|
|
1075 Vterminal_console = t_console;
|
|
|
1076 Vterminal_frame = t_frame;
|
|
|
1077 Vterminal_device = t_device;
|
|
|
1078 }
|
|
|
1079
|
|
452
|
1080 static int
|
|
|
1081 pdump_load_check (void)
|
|
442
|
1082 {
|
|
452
|
1083 return (!memcmp (((pdump_header *)pdump_start)->signature,
|
|
|
1084 PDUMP_SIGNATURE, PDUMP_SIGNATURE_LEN)
|
|
|
1085 && ((pdump_header *)pdump_start)->id == dump_id);
|
|
442
|
1086 }
|
|
|
1087
|
|
458
|
1088 /*----------------------------------------------------------------------*/
|
|
|
1089 /* Reading the dump file */
|
|
|
1090 /*----------------------------------------------------------------------*/
|
|
452
|
1091 static int
|
|
|
1092 pdump_load_finish (void)
|
|
442
|
1093 {
|
|
|
1094 int i;
|
|
|
1095 char *p;
|
|
|
1096 EMACS_INT delta;
|
|
|
1097 EMACS_INT count;
|
|
458
|
1098 pdump_header *header = (pdump_header *)pdump_start;
|
|
442
|
1099
|
|
|
1100 pdump_end = pdump_start + pdump_length;
|
|
|
1101
|
|
458
|
1102 delta = ((EMACS_INT)pdump_start) - header->reloc_address;
|
|
|
1103 p = pdump_start + header->stab_offset;
|
|
442
|
1104
|
|
452
|
1105 /* Put back the pdump_root_struct_ptrs */
|
|
458
|
1106 p = (char *) ALIGN_PTR (p, ALIGNOF (pdump_static_pointer));
|
|
|
1107 for (i=0; i<header->nb_root_struct_ptrs; i++)
|
|
442
|
1108 {
|
|
458
|
1109 pdump_static_pointer ptr = PDUMP_READ (p, pdump_static_pointer);
|
|
|
1110 (* ptr.address) = ptr.value + delta;
|
|
442
|
1111 }
|
|
|
1112
|
|
452
|
1113 /* Put back the pdump_opaques */
|
|
458
|
1114 for (i=0; i<header->nb_opaques; i++)
|
|
442
|
1115 {
|
|
458
|
1116 pdump_opaque info = PDUMP_READ_ALIGNED (p, pdump_opaque);
|
|
452
|
1117 memcpy (info.varaddress, p, info.size);
|
|
|
1118 p += info.size;
|
|
442
|
1119 }
|
|
|
1120
|
|
|
1121 /* Do the relocations */
|
|
|
1122 pdump_rt_list = p;
|
|
|
1123 count = 2;
|
|
|
1124 for (;;)
|
|
|
1125 {
|
|
458
|
1126 pdump_reloc_table rt = PDUMP_READ_ALIGNED (p, pdump_reloc_table);
|
|
|
1127 p = (char *) ALIGN_PTR (p, ALIGNOF (char *));
|
|
442
|
1128 if (rt.desc)
|
|
|
1129 {
|
|
458
|
1130 char **reloc = (char **)p;
|
|
442
|
1131 for (i=0; i < rt.count; i++)
|
|
|
1132 {
|
|
458
|
1133 reloc[i] += delta;
|
|
|
1134 pdump_reloc_one (reloc[i], delta, rt.desc);
|
|
442
|
1135 }
|
|
458
|
1136 p += rt.count * sizeof (char *);
|
|
442
|
1137 } else
|
|
|
1138 if (!(--count))
|
|
|
1139 break;
|
|
|
1140 }
|
|
|
1141
|
|
452
|
1142 /* Put the pdump_root_objects variables in place */
|
|
458
|
1143 i = PDUMP_READ_ALIGNED (p, size_t);
|
|
|
1144 p = (char *) ALIGN_PTR (p, ALIGNOF (pdump_static_Lisp_Object));
|
|
|
1145 while (i--)
|
|
442
|
1146 {
|
|
458
|
1147 pdump_static_Lisp_Object obj = PDUMP_READ (p, pdump_static_Lisp_Object);
|
|
442
|
1148
|
|
458
|
1149 if (POINTER_TYPE_P (XTYPE (obj.value)))
|
|
|
1150 obj.value = wrap_object ((char *) XPNTR (obj.value) + delta);
|
|
442
|
1151
|
|
458
|
1152 (* obj.address) = obj.value;
|
|
442
|
1153 }
|
|
|
1154
|
|
|
1155 /* Final cleanups */
|
|
|
1156 /* reorganize hash tables */
|
|
|
1157 p = pdump_rt_list;
|
|
|
1158 for (;;)
|
|
|
1159 {
|
|
458
|
1160 pdump_reloc_table rt = PDUMP_READ_ALIGNED (p, pdump_reloc_table);
|
|
|
1161 p = (char *) ALIGN_PTR (p, ALIGNOF (Lisp_Object));
|
|
442
|
1162 if (!rt.desc)
|
|
|
1163 break;
|
|
|
1164 if (rt.desc == hash_table_description)
|
|
|
1165 {
|
|
|
1166 for (i=0; i < rt.count; i++)
|
|
|
1167 pdump_reorganize_hash_table (PDUMP_READ (p, Lisp_Object));
|
|
|
1168 break;
|
|
|
1169 } else
|
|
|
1170 p += sizeof (Lisp_Object) * rt.count;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 return 1;
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 #ifdef WIN32_NATIVE
|
|
|
1177 /* Free the mapped file if we decide we don't want it after all */
|
|
452
|
1178 static void
|
|
|
1179 pdump_file_unmap (void)
|
|
442
|
1180 {
|
|
|
1181 UnmapViewOfFile (pdump_start);
|
|
|
1182 CloseHandle (pdump_hFile);
|
|
|
1183 CloseHandle (pdump_hMap);
|
|
|
1184 }
|
|
|
1185
|
|
452
|
1186 static int
|
|
|
1187 pdump_file_get (const char *path)
|
|
442
|
1188 {
|
|
|
1189
|
|
|
1190 pdump_hFile = CreateFile (path,
|
|
|
1191 GENERIC_READ + GENERIC_WRITE, /* Required for copy on write */
|
|
|
1192 0, /* Not shared */
|
|
|
1193 NULL, /* Not inheritable */
|
|
|
1194 OPEN_EXISTING,
|
|
|
1195 FILE_ATTRIBUTE_NORMAL,
|
|
|
1196 NULL); /* No template file */
|
|
|
1197 if (pdump_hFile == INVALID_HANDLE_VALUE)
|
|
|
1198 return 0;
|
|
|
1199
|
|
|
1200 pdump_length = GetFileSize (pdump_hFile, NULL);
|
|
|
1201 pdump_hMap = CreateFileMapping (pdump_hFile,
|
|
|
1202 NULL, /* No security attributes */
|
|
|
1203 PAGE_WRITECOPY, /* Copy on write */
|
|
|
1204 0, /* Max size, high half */
|
|
|
1205 0, /* Max size, low half */
|
|
|
1206 NULL); /* Unnamed */
|
|
|
1207 if (pdump_hMap == INVALID_HANDLE_VALUE)
|
|
|
1208 return 0;
|
|
|
1209
|
|
|
1210 pdump_start = MapViewOfFile (pdump_hMap,
|
|
452
|
1211 FILE_MAP_COPY, /* Copy on write */
|
|
442
|
1212 0, /* Start at zero */
|
|
|
1213 0,
|
|
|
1214 0); /* Map all of it */
|
|
|
1215 pdump_free = pdump_file_unmap;
|
|
|
1216 return 1;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 /* pdump_resource_free is called (via the pdump_free pointer) to release
|
|
|
1220 any resources allocated by pdump_resource_get. Since the Windows API
|
|
|
1221 specs specifically state that you don't need to (and shouldn't) free the
|
|
|
1222 resources allocated by FindResource, LoadResource, and LockResource this
|
|
|
1223 routine does nothing. */
|
|
452
|
1224 static void
|
|
|
1225 pdump_resource_free (void)
|
|
442
|
1226 {
|
|
|
1227 }
|
|
|
1228
|
|
452
|
1229 static int
|
|
|
1230 pdump_resource_get (void)
|
|
442
|
1231 {
|
|
452
|
1232 HRSRC hRes; /* Handle to dump resource */
|
|
|
1233 HRSRC hResLoad; /* Handle to loaded dump resource */
|
|
442
|
1234
|
|
|
1235 /* See Q126630 which describes how Windows NT and 95 trap writes to
|
|
|
1236 resource sections and duplicate the page to allow the write to proceed.
|
|
|
1237 It also describes how to make the resource section read/write (and hence
|
|
|
1238 private to each process). Doing this avoids the exceptions and related
|
|
|
1239 overhead, but causes the resource section to be private to each process
|
|
|
1240 that is running XEmacs. Since the resource section contains little
|
|
|
1241 other than the dumped data, which should be private to each process, we
|
|
|
1242 make the whole resource section read/write so we don't have to copy it. */
|
|
|
1243
|
|
|
1244 hRes = FindResource (NULL, MAKEINTRESOURCE(101), "DUMP");
|
|
|
1245 if (hRes == NULL)
|
|
|
1246 return 0;
|
|
|
1247
|
|
|
1248 /* Found it, use the data in the resource */
|
|
|
1249 hResLoad = LoadResource (NULL, hRes);
|
|
|
1250 if (hResLoad == NULL)
|
|
|
1251 return 0;
|
|
|
1252
|
|
|
1253 pdump_start = LockResource (hResLoad);
|
|
|
1254 if (pdump_start == NULL)
|
|
|
1255 return 0;
|
|
|
1256
|
|
|
1257 pdump_free = pdump_resource_free;
|
|
|
1258 pdump_length = SizeofResource (NULL, hRes);
|
|
452
|
1259 if (pdump_length <= sizeof (pdump_header))
|
|
442
|
1260 {
|
|
|
1261 pdump_start = 0;
|
|
|
1262 return 0;
|
|
|
1263 }
|
|
|
1264
|
|
|
1265 return 1;
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 #else /* !WIN32_NATIVE */
|
|
|
1269
|
|
452
|
1270 static void
|
|
|
1271 pdump_file_free (void)
|
|
442
|
1272 {
|
|
460
|
1273 xfree (pdump_start);
|
|
442
|
1274 }
|
|
|
1275
|
|
|
1276 #ifdef HAVE_MMAP
|
|
452
|
1277 static void
|
|
|
1278 pdump_file_unmap (void)
|
|
442
|
1279 {
|
|
|
1280 munmap (pdump_start, pdump_length);
|
|
|
1281 }
|
|
|
1282 #endif
|
|
|
1283
|
|
452
|
1284 static int
|
|
|
1285 pdump_file_get (const char *path)
|
|
442
|
1286 {
|
|
|
1287 int fd = open (path, O_RDONLY | OPEN_BINARY);
|
|
|
1288 if (fd<0)
|
|
|
1289 return 0;
|
|
|
1290
|
|
|
1291 pdump_length = lseek (fd, 0, SEEK_END);
|
|
452
|
1292 if (pdump_length < sizeof (pdump_header))
|
|
442
|
1293 {
|
|
|
1294 close (fd);
|
|
|
1295 return 0;
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 lseek (fd, 0, SEEK_SET);
|
|
|
1299
|
|
|
1300 #ifdef HAVE_MMAP
|
|
456
|
1301 /* Unix 98 requires that sys/mman.h define MAP_FAILED,
|
|
|
1302 but many earlier implementations don't. */
|
|
|
1303 # ifndef MAP_FAILED
|
|
|
1304 # define MAP_FAILED ((void *) -1L)
|
|
|
1305 # endif
|
|
442
|
1306 pdump_start = (char *) mmap (0, pdump_length, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
|
|
452
|
1307 if (pdump_start != (char *) MAP_FAILED)
|
|
442
|
1308 {
|
|
|
1309 pdump_free = pdump_file_unmap;
|
|
|
1310 close (fd);
|
|
|
1311 return 1;
|
|
|
1312 }
|
|
456
|
1313 #endif /* HAVE_MMAP */
|
|
442
|
1314
|
|
460
|
1315 pdump_start = xnew_array (char, pdump_length);
|
|
442
|
1316 pdump_free = pdump_file_free;
|
|
446
|
1317 read (fd, pdump_start, pdump_length);
|
|
442
|
1318
|
|
446
|
1319 close (fd);
|
|
442
|
1320 return 1;
|
|
|
1321 }
|
|
|
1322 #endif /* !WIN32_NATIVE */
|
|
|
1323
|
|
|
1324
|
|
452
|
1325 static int
|
|
|
1326 pdump_file_try (char *exe_path)
|
|
442
|
1327 {
|
|
460
|
1328 char *w = exe_path + strlen (exe_path);
|
|
442
|
1329
|
|
|
1330 do
|
|
|
1331 {
|
|
|
1332 sprintf (w, "-%s-%08x.dmp", EMACS_VERSION, dump_id);
|
|
|
1333 if (pdump_file_get (exe_path))
|
|
|
1334 {
|
|
|
1335 if (pdump_load_check ())
|
|
|
1336 return 1;
|
|
452
|
1337 pdump_free ();
|
|
442
|
1338 }
|
|
|
1339
|
|
|
1340 sprintf (w, "-%08x.dmp", dump_id);
|
|
|
1341 if (pdump_file_get (exe_path))
|
|
|
1342 {
|
|
|
1343 if (pdump_load_check ())
|
|
|
1344 return 1;
|
|
452
|
1345 pdump_free ();
|
|
442
|
1346 }
|
|
|
1347
|
|
|
1348 sprintf (w, ".dmp");
|
|
|
1349 if (pdump_file_get (exe_path))
|
|
|
1350 {
|
|
|
1351 if (pdump_load_check ())
|
|
|
1352 return 1;
|
|
452
|
1353 pdump_free ();
|
|
442
|
1354 }
|
|
|
1355
|
|
|
1356 do
|
|
|
1357 w--;
|
|
|
1358 while (w>exe_path && !IS_DIRECTORY_SEP (*w) && (*w != '-') && (*w != '.'));
|
|
|
1359 }
|
|
|
1360 while (w>exe_path && !IS_DIRECTORY_SEP (*w));
|
|
|
1361 return 0;
|
|
|
1362 }
|
|
|
1363
|
|
452
|
1364 int
|
|
|
1365 pdump_load (const char *argv0)
|
|
442
|
1366 {
|
|
|
1367 char exe_path[PATH_MAX];
|
|
|
1368 #ifdef WIN32_NATIVE
|
|
|
1369 GetModuleFileName (NULL, exe_path, PATH_MAX);
|
|
|
1370 #else /* !WIN32_NATIVE */
|
|
|
1371 char *w;
|
|
|
1372 const char *dir, *p;
|
|
|
1373
|
|
|
1374 dir = argv0;
|
|
|
1375 if (dir[0] == '-')
|
|
|
1376 {
|
|
|
1377 /* XEmacs as a login shell, oh goody! */
|
|
452
|
1378 dir = getenv ("SHELL");
|
|
442
|
1379 }
|
|
|
1380
|
|
452
|
1381 p = dir + strlen (dir);
|
|
442
|
1382 while (p != dir && !IS_ANY_SEP (p[-1])) p--;
|
|
|
1383
|
|
|
1384 if (p != dir)
|
|
|
1385 {
|
|
|
1386 /* invocation-name includes a directory component -- presumably it
|
|
|
1387 is relative to cwd, not $PATH */
|
|
|
1388 strcpy (exe_path, dir);
|
|
|
1389 }
|
|
|
1390 else
|
|
|
1391 {
|
|
|
1392 const char *path = getenv ("PATH");
|
|
|
1393 const char *name = p;
|
|
|
1394 for (;;)
|
|
|
1395 {
|
|
|
1396 p = path;
|
|
|
1397 while (*p && *p != SEPCHAR)
|
|
|
1398 p++;
|
|
|
1399 if (p == path)
|
|
|
1400 {
|
|
|
1401 exe_path[0] = '.';
|
|
|
1402 w = exe_path + 1;
|
|
|
1403 }
|
|
|
1404 else
|
|
|
1405 {
|
|
|
1406 memcpy (exe_path, path, p - path);
|
|
|
1407 w = exe_path + (p - path);
|
|
|
1408 }
|
|
|
1409 if (!IS_DIRECTORY_SEP (w[-1]))
|
|
|
1410 {
|
|
|
1411 *w++ = '/';
|
|
|
1412 }
|
|
452
|
1413 strcpy (w, name);
|
|
442
|
1414
|
|
|
1415 /* ### #$%$#^$^@%$^#%@$ ! */
|
|
|
1416 #ifdef access
|
|
|
1417 #undef access
|
|
|
1418 #endif
|
|
|
1419
|
|
|
1420 if (!access (exe_path, X_OK))
|
|
|
1421 break;
|
|
|
1422 if (!*p)
|
|
|
1423 {
|
|
|
1424 /* Oh well, let's have some kind of default */
|
|
|
1425 sprintf (exe_path, "./%s", name);
|
|
|
1426 break;
|
|
|
1427 }
|
|
|
1428 path = p+1;
|
|
|
1429 }
|
|
|
1430 }
|
|
|
1431 #endif /* WIN32_NATIVE */
|
|
|
1432
|
|
|
1433 if (pdump_file_try (exe_path))
|
|
|
1434 {
|
|
|
1435 pdump_load_finish ();
|
|
|
1436 return 1;
|
|
|
1437 }
|
|
|
1438
|
|
|
1439 #ifdef WIN32_NATIVE
|
|
|
1440 if (pdump_resource_get ())
|
|
|
1441 {
|
|
|
1442 if (pdump_load_check ())
|
|
|
1443 {
|
|
|
1444 pdump_load_finish ();
|
|
|
1445 return 1;
|
|
|
1446 }
|
|
|
1447 pdump_free ();
|
|
|
1448 }
|
|
|
1449 #endif
|
|
|
1450
|
|
|
1451 return 0;
|
|
|
1452 }
|
