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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 "dump-id.h"
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28 #include "specifier.h"
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29 #include "elhash.h"
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30 #include "sysfile.h"
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31 #include "console-stream.h"
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32 #include "dumper.h"
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33
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34 #ifdef WIN32_NATIVE
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35 #include "nt.h"
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36 #else
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37 #ifdef HAVE_MMAP
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38 #include <sys/mman.h>
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39 #endif
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40 #endif
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41
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42 #ifndef SEPCHAR
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43 #define SEPCHAR ':'
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44 #endif
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45
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46 typedef struct
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47 {
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452
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48 void *varaddress;
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49 size_t size;
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50 } pdump_opaque;
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51
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52 typedef struct
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53 {
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54 Dynarr_declare (pdump_opaque);
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55 } pdump_opaque_dynarr;
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56
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57 typedef struct
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58 {
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59 void **ptraddress;
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60 const struct struct_description *desc;
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61 } pdump_root_struct_ptr;
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62
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63 typedef struct
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64 {
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65 Dynarr_declare (pdump_root_struct_ptr);
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66 } pdump_root_struct_ptr_dynarr;
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67
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458
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68 typedef struct
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69 {
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70 Lisp_Object *address;
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71 Lisp_Object value;
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72 } pdump_static_Lisp_Object;
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73
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74 typedef struct
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75 {
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76 char **address; /* char * for ease of doing relocation */
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77 char * value;
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78 } pdump_static_pointer;
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79
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452
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80 static pdump_opaque_dynarr *pdump_opaques;
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81 static pdump_root_struct_ptr_dynarr *pdump_root_struct_ptrs;
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82 static Lisp_Object_ptr_dynarr *pdump_root_objects;
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83 static Lisp_Object_ptr_dynarr *pdump_weak_object_chains;
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84
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85 /* Mark SIZE bytes at non-heap address VARADDRESS for dumping as is,
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86 without any bit-twiddling. */
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87 void
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88 dump_add_opaque (void *varaddress, size_t size)
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89 {
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90 pdump_opaque info;
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91 info.varaddress = varaddress;
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92 info.size = size;
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93 if (pdump_opaques == NULL)
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94 pdump_opaques = Dynarr_new (pdump_opaque);
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95 Dynarr_add (pdump_opaques, info);
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96 }
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97
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98 /* Mark the struct described by DESC and pointed to by the pointer at
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99 non-heap address VARADDRESS for dumping.
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100 All the objects reachable from this pointer will also be dumped. */
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101 void
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102 dump_add_root_struct_ptr (void *ptraddress, const struct struct_description *desc)
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103 {
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104 pdump_root_struct_ptr info;
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105 info.ptraddress = (void **) ptraddress;
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106 info.desc = desc;
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107 if (pdump_root_struct_ptrs == NULL)
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108 pdump_root_struct_ptrs = Dynarr_new (pdump_root_struct_ptr);
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109 Dynarr_add (pdump_root_struct_ptrs, info);
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110 }
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111
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112 /* Mark the Lisp_Object at non-heap address VARADDRESS for dumping.
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113 All the objects reachable from this var will also be dumped. */
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114 void
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115 dump_add_root_object (Lisp_Object *varaddress)
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116 {
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117 if (pdump_root_objects == NULL)
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118 pdump_root_objects = Dynarr_new2 (Lisp_Object_ptr_dynarr, Lisp_Object *);
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119 Dynarr_add (pdump_root_objects, varaddress);
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120 }
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121
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122 /* Mark the list pointed to by the Lisp_Object at VARADDRESS for dumping. */
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123 void
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124 dump_add_weak_object_chain (Lisp_Object *varaddress)
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125 {
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126 if (pdump_weak_object_chains == NULL)
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127 pdump_weak_object_chains = Dynarr_new2 (Lisp_Object_ptr_dynarr, Lisp_Object *);
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128 Dynarr_add (pdump_weak_object_chains, varaddress);
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129 }
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130
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131
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458
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132 inline static void
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133 pdump_align_stream (FILE *stream, size_t alignment)
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134 {
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135 long offset = ftell (stream);
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136 long adjustment = ALIGN_SIZE (offset, alignment) - offset;
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137 if (adjustment)
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138 fseek (stream, adjustment, SEEK_CUR);
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139 }
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140
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141 #define PDUMP_ALIGN_OUTPUT(type) pdump_align_stream (pdump_out, ALIGNOF (type))
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142
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143 #define PDUMP_WRITE(type, object) \
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144 fwrite (&object, sizeof (object), 1, pdump_out);
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145
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146 #define PDUMP_WRITE_ALIGNED(type, object) do { \
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147 PDUMP_ALIGN_OUTPUT (type); \
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148 PDUMP_WRITE (type, object); \
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149 } while (0)
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150
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151 #define PDUMP_READ(ptr, type) \
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152 (((type *) (ptr = (char*) (((type *) ptr) + 1)))[-1])
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153
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154 #define PDUMP_READ_ALIGNED(ptr, type) \
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155 ((ptr = (char *) ALIGN_PTR (ptr, ALIGNOF (type))), PDUMP_READ (ptr, type))
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156
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157
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158
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452
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159 typedef struct
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160 {
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442
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161 const struct lrecord_description *desc;
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162 int count;
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163 } pdump_reloc_table;
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164
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165 static char *pdump_rt_list = 0;
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166
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167 void
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168 pdump_objects_unmark (void)
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169 {
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170 int i;
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171 char *p = pdump_rt_list;
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172 if (p)
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173 for (;;)
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174 {
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175 pdump_reloc_table *rt = (pdump_reloc_table *)p;
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176 p += sizeof (pdump_reloc_table);
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177 if (rt->desc)
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178 {
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179 for (i=0; i<rt->count; i++)
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180 {
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181 struct lrecord_header *lh = * (struct lrecord_header **) p;
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182 if (! C_READONLY_RECORD_HEADER_P (lh))
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183 UNMARK_RECORD_HEADER (lh);
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184 p += sizeof (EMACS_INT);
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185 }
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186 } else
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187 break;
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188 }
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189 }
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190
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191
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192 /* The structure of the file
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458
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193 0 - header
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194 - dumped objects
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195 stab_offset - nb_root_struct_ptrs*pair(void *, adr)
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196 for pointers to structures
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197 - nb_opaques*pair(void *, size) for raw bits to restore
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198 - relocation table
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199 - root lisp object address/value couples with the count
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200 preceding the list
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442
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201 */
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202
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203
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452
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204 #define PDUMP_SIGNATURE "XEmacsDP"
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205 #define PDUMP_SIGNATURE_LEN (sizeof (PDUMP_SIGNATURE) - 1)
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442
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206
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207 typedef struct
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208 {
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452
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209 char signature[PDUMP_SIGNATURE_LEN];
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442
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210 unsigned int id;
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211 EMACS_UINT stab_offset;
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212 EMACS_UINT reloc_address;
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452
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213 int nb_root_struct_ptrs;
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214 int nb_opaques;
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215 } pdump_header;
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442
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216
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458
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217 char *pdump_start;
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218 char *pdump_end;
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442
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219 static size_t pdump_length;
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220
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221 #ifdef WIN32_NATIVE
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452
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222 /* Handle for the dump file */
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458
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223 static HANDLE pdump_hFile = INVALID_HANDLE_VALUE;
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452
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224 /* Handle for the file mapping object for the dump file */
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458
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225 static HANDLE pdump_hMap = INVALID_HANDLE_VALUE;
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442
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226 #endif
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227
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458
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228 static void (*pdump_free) (void);
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442
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229
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452
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230 static const unsigned char pdump_align_table[256] =
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442
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231 {
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232 8, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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233 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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234 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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235 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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236 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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237 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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238 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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239 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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240 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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241 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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242 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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243 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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244 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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245 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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246 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
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247 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0
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248 };
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249
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250 typedef struct pdump_entry_list_elmt
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251 {
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252 struct pdump_entry_list_elmt *next;
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253 const void *obj;
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254 size_t size;
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255 int count;
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256 EMACS_INT save_offset;
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257 } pdump_entry_list_elmt;
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258
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259 typedef struct
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260 {
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261 pdump_entry_list_elmt *first;
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262 int align;
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263 int count;
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264 } pdump_entry_list;
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265
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266 typedef struct pdump_struct_list_elmt
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267 {
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268 pdump_entry_list list;
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269 const struct struct_description *sdesc;
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270 } pdump_struct_list_elmt;
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271
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272 typedef struct
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273 {
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274 pdump_struct_list_elmt *list;
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275 int count;
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276 int size;
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277 } pdump_struct_list;
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278
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279 static pdump_entry_list pdump_object_table[256];
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280 static pdump_entry_list pdump_opaque_data_list;
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281 static pdump_struct_list pdump_struct_table;
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282
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283 static int pdump_alert_undump_object[256];
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284
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285 static unsigned long cur_offset;
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286 static size_t max_size;
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287 static int pdump_fd;
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288 static void *pdump_buf;
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458
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289 static FILE *pdump_out;
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442
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290
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291 #define PDUMP_HASHSIZE 200001
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292
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293 static pdump_entry_list_elmt **pdump_hash;
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294
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295 /* Since most pointers are eight bytes aligned, the >>3 allows for a better hash */
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296 static int
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297 pdump_make_hash (const void *obj)
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298 {
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299 return ((unsigned long)(obj)>>3) % PDUMP_HASHSIZE;
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300 }
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301
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302 static pdump_entry_list_elmt *
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303 pdump_get_entry (const void *obj)
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304 {
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305 int pos = pdump_make_hash (obj);
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306 pdump_entry_list_elmt *e;
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307
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308 assert (obj != 0);
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309
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310 while ((e = pdump_hash[pos]) != 0)
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311 {
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312 if (e->obj == obj)
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313 return e;
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314
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315 pos++;
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316 if (pos == PDUMP_HASHSIZE)
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317 pos = 0;
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318 }
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319 return 0;
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320 }
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321
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322 static void
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458
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323 pdump_add_entry (pdump_entry_list *list, const void *obj, size_t size,
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324 int count)
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442
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325 {
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326 pdump_entry_list_elmt *e;
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327 int align;
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328 int pos = pdump_make_hash (obj);
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329
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330 while ((e = pdump_hash[pos]) != 0)
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331 {
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332 if (e->obj == obj)
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333 return;
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334
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335 pos++;
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336 if (pos == PDUMP_HASHSIZE)
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337 pos = 0;
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338 }
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339
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340 e = xnew (pdump_entry_list_elmt);
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341
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342 e->next = list->first;
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343 e->obj = obj;
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344 e->size = size;
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345 e->count = count;
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346 list->first = e;
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347
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348 list->count += count;
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349 pdump_hash[pos] = e;
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350
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452
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351 align = pdump_align_table[size & 255];
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442
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352
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353 if (align < list->align)
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354 list->align = align;
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355 }
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356
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357 static pdump_entry_list *
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358 pdump_get_entry_list (const struct struct_description *sdesc)
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359 {
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360 int i;
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361 for (i=0; i<pdump_struct_table.count; i++)
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362 if (pdump_struct_table.list[i].sdesc == sdesc)
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363 return &pdump_struct_table.list[i].list;
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364
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365 if (pdump_struct_table.size <= pdump_struct_table.count)
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366 {
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367 if (pdump_struct_table.size == -1)
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368 pdump_struct_table.size = 10;
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369 else
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370 pdump_struct_table.size = pdump_struct_table.size * 2;
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371 pdump_struct_table.list = (pdump_struct_list_elmt *)
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372 xrealloc (pdump_struct_table.list,
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373 pdump_struct_table.size * sizeof (pdump_struct_list_elmt));
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374 }
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375 pdump_struct_table.list[pdump_struct_table.count].list.first = 0;
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376 pdump_struct_table.list[pdump_struct_table.count].list.align = 8;
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377 pdump_struct_table.list[pdump_struct_table.count].list.count = 0;
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378 pdump_struct_table.list[pdump_struct_table.count].sdesc = sdesc;
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379
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380 return &pdump_struct_table.list[pdump_struct_table.count++].list;
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381 }
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382
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383 static struct
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384 {
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385 struct lrecord_header *obj;
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386 int position;
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387 int offset;
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388 } backtrace[65536];
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389
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390 static int depth;
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391
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452
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392 static void
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393 pdump_backtrace (void)
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442
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394 {
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395 int i;
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396 stderr_out ("pdump backtrace :\n");
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|
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397 for (i=0;i<depth;i++)
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|
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398 {
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|
|
399 if (!backtrace[i].obj)
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|
458
|
400 stderr_out (" - ind. (%d, %d)\n",
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|
|
401 backtrace[i].position,
|
|
|
402 backtrace[i].offset);
|
|
442
|
403 else
|
|
|
404 {
|
|
|
405 stderr_out (" - %s (%d, %d)\n",
|
|
458
|
406 LHEADER_IMPLEMENTATION (backtrace[i].obj)->name,
|
|
|
407 backtrace[i].position,
|
|
|
408 backtrace[i].offset);
|
|
442
|
409 }
|
|
|
410 }
|
|
|
411 }
|
|
|
412
|
|
|
413 static void pdump_register_object (Lisp_Object obj);
|
|
458
|
414 static void pdump_register_struct (const void *data,
|
|
|
415 const struct struct_description *sdesc,
|
|
|
416 int count);
|
|
442
|
417
|
|
|
418 static EMACS_INT
|
|
458
|
419 pdump_get_indirect_count (EMACS_INT code,
|
|
|
420 const struct lrecord_description *idesc,
|
|
|
421 const void *idata)
|
|
442
|
422 {
|
|
|
423 EMACS_INT count;
|
|
|
424 const void *irdata;
|
|
|
425
|
|
|
426 int line = XD_INDIRECT_VAL (code);
|
|
|
427 int delta = XD_INDIRECT_DELTA (code);
|
|
|
428
|
|
|
429 irdata = ((char *)idata) + idesc[line].offset;
|
|
|
430 switch (idesc[line].type)
|
|
|
431 {
|
|
|
432 case XD_SIZE_T:
|
|
|
433 count = *(size_t *)irdata;
|
|
|
434 break;
|
|
|
435 case XD_INT:
|
|
|
436 count = *(int *)irdata;
|
|
|
437 break;
|
|
|
438 case XD_LONG:
|
|
|
439 count = *(long *)irdata;
|
|
|
440 break;
|
|
|
441 case XD_BYTECOUNT:
|
|
|
442 count = *(Bytecount *)irdata;
|
|
|
443 break;
|
|
|
444 default:
|
|
458
|
445 stderr_out ("Unsupported count type : %d (line = %d, code=%ld)\n",
|
|
|
446 idesc[line].type, line, (long)code);
|
|
442
|
447 pdump_backtrace ();
|
|
|
448 abort ();
|
|
|
449 }
|
|
|
450 count += delta;
|
|
|
451 return count;
|
|
|
452 }
|
|
|
453
|
|
|
454 static void
|
|
|
455 pdump_register_sub (const void *data, const struct lrecord_description *desc, int me)
|
|
|
456 {
|
|
|
457 int pos;
|
|
|
458
|
|
|
459 restart:
|
|
|
460 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
461 {
|
|
|
462 const void *rdata = (const char *)data + desc[pos].offset;
|
|
|
463
|
|
|
464 backtrace[me].position = pos;
|
|
|
465 backtrace[me].offset = desc[pos].offset;
|
|
|
466
|
|
|
467 switch (desc[pos].type)
|
|
|
468 {
|
|
|
469 case XD_SPECIFIER_END:
|
|
|
470 pos = 0;
|
|
|
471 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
472 goto restart;
|
|
|
473 case XD_SIZE_T:
|
|
|
474 case XD_INT:
|
|
|
475 case XD_LONG:
|
|
|
476 case XD_BYTECOUNT:
|
|
|
477 case XD_INT_RESET:
|
|
|
478 case XD_LO_LINK:
|
|
|
479 break;
|
|
|
480 case XD_OPAQUE_DATA_PTR:
|
|
|
481 {
|
|
|
482 EMACS_INT count = desc[pos].data1;
|
|
|
483 if (XD_IS_INDIRECT (count))
|
|
|
484 count = pdump_get_indirect_count (count, desc, data);
|
|
|
485
|
|
|
486 pdump_add_entry (&pdump_opaque_data_list,
|
|
458
|
487 *(void **)rdata, count, 1);
|
|
442
|
488 break;
|
|
|
489 }
|
|
|
490 case XD_C_STRING:
|
|
|
491 {
|
|
|
492 const char *str = *(const char **)rdata;
|
|
|
493 if (str)
|
|
458
|
494 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1);
|
|
442
|
495 break;
|
|
|
496 }
|
|
|
497 case XD_DOC_STRING:
|
|
|
498 {
|
|
|
499 const char *str = *(const char **)rdata;
|
|
|
500 if ((EMACS_INT)str > 0)
|
|
458
|
501 pdump_add_entry (&pdump_opaque_data_list, str, strlen (str)+1, 1);
|
|
442
|
502 break;
|
|
|
503 }
|
|
|
504 case XD_LISP_OBJECT:
|
|
|
505 {
|
|
|
506 const Lisp_Object *pobj = (const Lisp_Object *)rdata;
|
|
|
507
|
|
|
508 assert (desc[pos].data1 == 0);
|
|
|
509
|
|
|
510 backtrace[me].offset = (const char *)pobj - (const char *)data;
|
|
|
511 pdump_register_object (*pobj);
|
|
|
512 break;
|
|
|
513 }
|
|
|
514 case XD_LISP_OBJECT_ARRAY:
|
|
|
515 {
|
|
|
516 int i;
|
|
|
517 EMACS_INT count = desc[pos].data1;
|
|
|
518 if (XD_IS_INDIRECT (count))
|
|
|
519 count = pdump_get_indirect_count (count, desc, data);
|
|
|
520
|
|
|
521 for (i = 0; i < count; i++)
|
|
|
522 {
|
|
|
523 const Lisp_Object *pobj = ((const Lisp_Object *)rdata) + i;
|
|
|
524 Lisp_Object dobj = *pobj;
|
|
|
525
|
|
|
526 backtrace[me].offset = (const char *)pobj - (const char *)data;
|
|
|
527 pdump_register_object (dobj);
|
|
|
528 }
|
|
|
529 break;
|
|
|
530 }
|
|
|
531 case XD_STRUCT_PTR:
|
|
|
532 {
|
|
|
533 EMACS_INT count = desc[pos].data1;
|
|
|
534 const struct struct_description *sdesc = desc[pos].data2;
|
|
|
535 const char *dobj = *(const char **)rdata;
|
|
|
536 if (dobj)
|
|
|
537 {
|
|
|
538 if (XD_IS_INDIRECT (count))
|
|
|
539 count = pdump_get_indirect_count (count, desc, data);
|
|
|
540
|
|
|
541 pdump_register_struct (dobj, sdesc, count);
|
|
|
542 }
|
|
|
543 break;
|
|
|
544 }
|
|
|
545 default:
|
|
|
546 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
547 pdump_backtrace ();
|
|
|
548 abort ();
|
|
|
549 };
|
|
|
550 }
|
|
|
551 }
|
|
|
552
|
|
|
553 static void
|
|
|
554 pdump_register_object (Lisp_Object obj)
|
|
|
555 {
|
|
|
556 struct lrecord_header *objh;
|
|
458
|
557 const struct lrecord_implementation *imp;
|
|
442
|
558
|
|
|
559 if (!POINTER_TYPE_P (XTYPE (obj)))
|
|
|
560 return;
|
|
|
561
|
|
|
562 objh = XRECORD_LHEADER (obj);
|
|
|
563 if (!objh)
|
|
|
564 return;
|
|
|
565
|
|
|
566 if (pdump_get_entry (objh))
|
|
|
567 return;
|
|
|
568
|
|
458
|
569 imp = LHEADER_IMPLEMENTATION (objh);
|
|
|
570
|
|
|
571 if (imp->description)
|
|
442
|
572 {
|
|
|
573 int me = depth++;
|
|
|
574 if (me>65536)
|
|
|
575 {
|
|
|
576 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
577 abort ();
|
|
|
578 }
|
|
|
579 backtrace[me].obj = objh;
|
|
|
580 backtrace[me].position = 0;
|
|
|
581 backtrace[me].offset = 0;
|
|
|
582
|
|
|
583 pdump_add_entry (pdump_object_table + objh->type,
|
|
|
584 objh,
|
|
458
|
585 imp->static_size ?
|
|
|
586 imp->static_size :
|
|
|
587 imp->size_in_bytes_method (objh),
|
|
442
|
588 1);
|
|
458
|
589 pdump_register_sub (objh, imp->description, me);
|
|
442
|
590 --depth;
|
|
|
591 }
|
|
|
592 else
|
|
|
593 {
|
|
|
594 pdump_alert_undump_object[objh->type]++;
|
|
458
|
595 stderr_out ("Undumpable object type : %s\n", imp->name);
|
|
442
|
596 pdump_backtrace ();
|
|
|
597 }
|
|
|
598 }
|
|
|
599
|
|
|
600 static void
|
|
458
|
601 pdump_register_struct (const void *data,
|
|
|
602 const struct struct_description *sdesc,
|
|
|
603 int count)
|
|
442
|
604 {
|
|
|
605 if (data && !pdump_get_entry (data))
|
|
|
606 {
|
|
|
607 int me = depth++;
|
|
|
608 int i;
|
|
|
609 if (me>65536)
|
|
|
610 {
|
|
|
611 stderr_out ("Backtrace overflow, loop ?\n");
|
|
|
612 abort ();
|
|
|
613 }
|
|
|
614 backtrace[me].obj = 0;
|
|
|
615 backtrace[me].position = 0;
|
|
|
616 backtrace[me].offset = 0;
|
|
|
617
|
|
|
618 pdump_add_entry (pdump_get_entry_list (sdesc),
|
|
458
|
619 data, sdesc->size, count);
|
|
442
|
620 for (i=0; i<count; i++)
|
|
|
621 {
|
|
|
622 pdump_register_sub (((char *)data) + sdesc->size*i,
|
|
|
623 sdesc->description,
|
|
|
624 me);
|
|
|
625 }
|
|
|
626 --depth;
|
|
|
627 }
|
|
|
628 }
|
|
|
629
|
|
|
630 static void
|
|
458
|
631 pdump_dump_data (pdump_entry_list_elmt *elmt,
|
|
|
632 const struct lrecord_description *desc)
|
|
442
|
633 {
|
|
|
634 size_t size = elmt->size;
|
|
|
635 int count = elmt->count;
|
|
|
636 if (desc)
|
|
|
637 {
|
|
|
638 int pos, i;
|
|
|
639 memcpy (pdump_buf, elmt->obj, size*count);
|
|
|
640
|
|
|
641 for (i=0; i<count; i++)
|
|
|
642 {
|
|
|
643 char *cur = ((char *)pdump_buf) + i*size;
|
|
|
644 restart:
|
|
|
645 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
646 {
|
|
|
647 void *rdata = cur + desc[pos].offset;
|
|
|
648 switch (desc[pos].type)
|
|
|
649 {
|
|
|
650 case XD_SPECIFIER_END:
|
|
|
651 desc = ((const Lisp_Specifier *)(elmt->obj))->methods->extra_description;
|
|
|
652 goto restart;
|
|
|
653 case XD_SIZE_T:
|
|
|
654 case XD_INT:
|
|
|
655 case XD_LONG:
|
|
|
656 case XD_BYTECOUNT:
|
|
|
657 break;
|
|
|
658 case XD_INT_RESET:
|
|
|
659 {
|
|
|
660 EMACS_INT val = desc[pos].data1;
|
|
|
661 if (XD_IS_INDIRECT (val))
|
|
|
662 val = pdump_get_indirect_count (val, desc, elmt->obj);
|
|
|
663 *(int *)rdata = val;
|
|
|
664 break;
|
|
|
665 }
|
|
|
666 case XD_OPAQUE_DATA_PTR:
|
|
|
667 case XD_C_STRING:
|
|
|
668 case XD_STRUCT_PTR:
|
|
|
669 {
|
|
|
670 void *ptr = *(void **)rdata;
|
|
|
671 if (ptr)
|
|
|
672 *(EMACS_INT *)rdata = pdump_get_entry (ptr)->save_offset;
|
|
|
673 break;
|
|
|
674 }
|
|
|
675 case XD_LO_LINK:
|
|
|
676 {
|
|
|
677 Lisp_Object obj = *(Lisp_Object *)rdata;
|
|
|
678 pdump_entry_list_elmt *elmt1;
|
|
|
679 for (;;)
|
|
|
680 {
|
|
|
681 elmt1 = pdump_get_entry (XRECORD_LHEADER (obj));
|
|
|
682 if (elmt1)
|
|
|
683 break;
|
|
|
684 obj = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj)));
|
|
|
685 }
|
|
|
686 *(EMACS_INT *)rdata = elmt1->save_offset;
|
|
|
687 break;
|
|
|
688 }
|
|
|
689 case XD_LISP_OBJECT:
|
|
|
690 {
|
|
|
691 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
692
|
|
|
693 assert (desc[pos].data1 == 0);
|
|
|
694
|
|
|
695 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
696 *(EMACS_INT *)pobj =
|
|
|
697 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
698 break;
|
|
|
699 }
|
|
|
700 case XD_LISP_OBJECT_ARRAY:
|
|
|
701 {
|
|
|
702 EMACS_INT num = desc[pos].data1;
|
|
|
703 int j;
|
|
|
704 if (XD_IS_INDIRECT (num))
|
|
|
705 num = pdump_get_indirect_count (num, desc, elmt->obj);
|
|
|
706
|
|
|
707 for (j=0; j<num; j++)
|
|
|
708 {
|
|
|
709 Lisp_Object *pobj = ((Lisp_Object *)rdata) + j;
|
|
|
710 if (POINTER_TYPE_P (XTYPE (*pobj)) && XRECORD_LHEADER (*pobj))
|
|
|
711 *(EMACS_INT *)pobj =
|
|
|
712 pdump_get_entry (XRECORD_LHEADER (*pobj))->save_offset;
|
|
|
713 }
|
|
|
714 break;
|
|
|
715 }
|
|
|
716 case XD_DOC_STRING:
|
|
|
717 {
|
|
|
718 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
719 if (str > 0)
|
|
|
720 *(EMACS_INT *)rdata = pdump_get_entry ((void *)str)->save_offset;
|
|
|
721 break;
|
|
|
722 }
|
|
|
723 default:
|
|
|
724 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
725 abort ();
|
|
458
|
726 }
|
|
442
|
727 }
|
|
|
728 }
|
|
|
729 }
|
|
458
|
730 fwrite (desc ? pdump_buf : elmt->obj, size, count, pdump_out);
|
|
442
|
731 }
|
|
|
732
|
|
|
733 static void
|
|
458
|
734 pdump_reloc_one (void *data, EMACS_INT delta,
|
|
|
735 const struct lrecord_description *desc)
|
|
442
|
736 {
|
|
|
737 int pos;
|
|
|
738
|
|
|
739 restart:
|
|
|
740 for (pos = 0; desc[pos].type != XD_END; pos++)
|
|
|
741 {
|
|
|
742 void *rdata = (char *)data + desc[pos].offset;
|
|
|
743 switch (desc[pos].type)
|
|
|
744 {
|
|
|
745 case XD_SPECIFIER_END:
|
|
|
746 pos = 0;
|
|
|
747 desc = ((const Lisp_Specifier *)data)->methods->extra_description;
|
|
|
748 goto restart;
|
|
|
749 case XD_SIZE_T:
|
|
|
750 case XD_INT:
|
|
|
751 case XD_LONG:
|
|
|
752 case XD_BYTECOUNT:
|
|
|
753 case XD_INT_RESET:
|
|
|
754 break;
|
|
|
755 case XD_OPAQUE_DATA_PTR:
|
|
|
756 case XD_C_STRING:
|
|
|
757 case XD_STRUCT_PTR:
|
|
|
758 case XD_LO_LINK:
|
|
|
759 {
|
|
|
760 EMACS_INT ptr = *(EMACS_INT *)rdata;
|
|
|
761 if (ptr)
|
|
|
762 *(EMACS_INT *)rdata = ptr+delta;
|
|
|
763 break;
|
|
|
764 }
|
|
|
765 case XD_LISP_OBJECT:
|
|
|
766 {
|
|
|
767 Lisp_Object *pobj = (Lisp_Object *) rdata;
|
|
|
768
|
|
|
769 assert (desc[pos].data1 == 0);
|
|
|
770
|
|
|
771 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
772 && ! EQ (*pobj, Qnull_pointer))
|
|
|
773 XSETOBJ (*pobj, (char *) XPNTR (*pobj) + delta);
|
|
|
774
|
|
|
775 break;
|
|
|
776 }
|
|
|
777 case XD_LISP_OBJECT_ARRAY:
|
|
|
778 {
|
|
|
779 EMACS_INT num = desc[pos].data1;
|
|
|
780 int j;
|
|
|
781 if (XD_IS_INDIRECT (num))
|
|
|
782 num = pdump_get_indirect_count (num, desc, data);
|
|
|
783
|
|
|
784 for (j=0; j<num; j++)
|
|
|
785 {
|
|
|
786 Lisp_Object *pobj = (Lisp_Object *) rdata + j;
|
|
|
787
|
|
|
788 if (POINTER_TYPE_P (XTYPE (*pobj))
|
|
|
789 && ! EQ (*pobj, Qnull_pointer))
|
|
|
790 XSETOBJ (*pobj, (char *) XPNTR (*pobj) + delta);
|
|
|
791 }
|
|
|
792 break;
|
|
|
793 }
|
|
|
794 case XD_DOC_STRING:
|
|
|
795 {
|
|
|
796 EMACS_INT str = *(EMACS_INT *)rdata;
|
|
|
797 if (str > 0)
|
|
|
798 *(EMACS_INT *)rdata = str + delta;
|
|
|
799 break;
|
|
|
800 }
|
|
|
801 default:
|
|
|
802 stderr_out ("Unsupported dump type : %d\n", desc[pos].type);
|
|
|
803 abort ();
|
|
|
804 };
|
|
|
805 }
|
|
|
806 }
|
|
|
807
|
|
|
808 static void
|
|
458
|
809 pdump_allocate_offset (pdump_entry_list_elmt *elmt,
|
|
|
810 const struct lrecord_description *desc)
|
|
442
|
811 {
|
|
458
|
812 size_t size = elmt->count * elmt->size;
|
|
442
|
813 elmt->save_offset = cur_offset;
|
|
|
814 if (size>max_size)
|
|
|
815 max_size = size;
|
|
|
816 cur_offset += size;
|
|
|
817 }
|
|
|
818
|
|
|
819 static void
|
|
458
|
820 pdump_scan_by_alignment (void (*f)(pdump_entry_list_elmt *,
|
|
|
821 const struct lrecord_description *))
|
|
442
|
822 {
|
|
|
823 int align, i;
|
|
|
824 const struct lrecord_description *idesc;
|
|
|
825 pdump_entry_list_elmt *elmt;
|
|
|
826 for (align=8; align>=0; align--)
|
|
|
827 {
|
|
|
828 for (i=0; i<lrecord_type_count; i++)
|
|
|
829 if (pdump_object_table[i].align == align)
|
|
|
830 {
|
|
|
831 elmt = pdump_object_table[i].first;
|
|
|
832 if (!elmt)
|
|
|
833 continue;
|
|
|
834 idesc = lrecord_implementations_table[i]->description;
|
|
|
835 while (elmt)
|
|
|
836 {
|
|
|
837 f (elmt, idesc);
|
|
|
838 elmt = elmt->next;
|
|
|
839 }
|
|
|
840 }
|
|
|
841
|
|
|
842 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
843 if (pdump_struct_table.list[i].list.align == align)
|
|
|
844 {
|
|
|
845 elmt = pdump_struct_table.list[i].list.first;
|
|
|
846 idesc = pdump_struct_table.list[i].sdesc->description;
|
|
|
847 while (elmt)
|
|
|
848 {
|
|
|
849 f (elmt, idesc);
|
|
|
850 elmt = elmt->next;
|
|
|
851 }
|
|
|
852 }
|
|
|
853
|
|
|
854 elmt = pdump_opaque_data_list.first;
|
|
|
855 while (elmt)
|
|
|
856 {
|
|
452
|
857 if (pdump_align_table[elmt->size & 255] == align)
|
|
442
|
858 f (elmt, 0);
|
|
|
859 elmt = elmt->next;
|
|
|
860 }
|
|
|
861 }
|
|
|
862 }
|
|
|
863
|
|
|
864 static void
|
|
458
|
865 pdump_dump_root_struct_ptrs (void)
|
|
442
|
866 {
|
|
|
867 int i;
|
|
458
|
868 size_t count = Dynarr_length (pdump_root_struct_ptrs);
|
|
|
869 pdump_static_pointer *data = alloca_array (pdump_static_pointer, count);
|
|
|
870 for (i = 0; i < count; i++)
|
|
442
|
871 {
|
|
458
|
872 data[i].address = (char **) Dynarr_atp (pdump_root_struct_ptrs, i)->ptraddress;
|
|
|
873 data[i].value = (char *) pdump_get_entry (* data[i].address)->save_offset;
|
|
442
|
874 }
|
|
458
|
875 PDUMP_ALIGN_OUTPUT (pdump_static_pointer);
|
|
|
876 fwrite (data, sizeof (pdump_static_pointer), count, pdump_out);
|
|
442
|
877 }
|
|
|
878
|
|
|
879 static void
|
|
452
|
880 pdump_dump_opaques (void)
|
|
442
|
881 {
|
|
|
882 int i;
|
|
452
|
883 for (i = 0; i < Dynarr_length (pdump_opaques); i++)
|
|
442
|
884 {
|
|
452
|
885 pdump_opaque *info = Dynarr_atp (pdump_opaques, i);
|
|
458
|
886 PDUMP_WRITE_ALIGNED (pdump_opaque, *info);
|
|
|
887 fwrite (info->varaddress, info->size, 1, pdump_out);
|
|
442
|
888 }
|
|
|
889 }
|
|
|
890
|
|
|
891 static void
|
|
|
892 pdump_dump_rtables (void)
|
|
|
893 {
|
|
452
|
894 int i;
|
|
442
|
895 pdump_entry_list_elmt *elmt;
|
|
|
896 pdump_reloc_table rt;
|
|
|
897
|
|
|
898 for (i=0; i<lrecord_type_count; i++)
|
|
|
899 {
|
|
|
900 elmt = pdump_object_table[i].first;
|
|
|
901 if (!elmt)
|
|
|
902 continue;
|
|
|
903 rt.desc = lrecord_implementations_table[i]->description;
|
|
|
904 rt.count = pdump_object_table[i].count;
|
|
458
|
905 PDUMP_WRITE_ALIGNED (pdump_reloc_table, rt);
|
|
442
|
906 while (elmt)
|
|
|
907 {
|
|
|
908 EMACS_INT rdata = pdump_get_entry (elmt->obj)->save_offset;
|
|
458
|
909 PDUMP_WRITE_ALIGNED (EMACS_INT, rdata);
|
|
442
|
910 elmt = elmt->next;
|
|
|
911 }
|
|
|
912 }
|
|
|
913
|
|
|
914 rt.desc = 0;
|
|
|
915 rt.count = 0;
|
|
458
|
916 PDUMP_WRITE_ALIGNED (pdump_reloc_table, rt);
|
|
442
|
917
|
|
|
918 for (i=0; i<pdump_struct_table.count; i++)
|
|
|
919 {
|
|
|
920 elmt = pdump_struct_table.list[i].list.first;
|
|
|
921 rt.desc = pdump_struct_table.list[i].sdesc->description;
|
|
|
922 rt.count = pdump_struct_table.list[i].list.count;
|
|
458
|
923 PDUMP_WRITE_ALIGNED (pdump_reloc_table, rt);
|
|
442
|
924 while (elmt)
|
|
|
925 {
|
|
|
926 EMACS_INT rdata = pdump_get_entry (elmt->obj)->save_offset;
|
|
452
|
927 int j;
|
|
442
|
928 for (j=0; j<elmt->count; j++)
|
|
|
929 {
|
|
458
|
930 PDUMP_WRITE_ALIGNED (EMACS_INT, rdata);
|
|
442
|
931 rdata += elmt->size;
|
|
|
932 }
|
|
|
933 elmt = elmt->next;
|
|
|
934 }
|
|
|
935 }
|
|
|
936 rt.desc = 0;
|
|
|
937 rt.count = 0;
|
|
458
|
938 PDUMP_WRITE_ALIGNED (pdump_reloc_table, rt);
|
|
442
|
939 }
|
|
|
940
|
|
|
941 static void
|
|
458
|
942 pdump_dump_root_objects (void)
|
|
442
|
943 {
|
|
458
|
944 size_t count = (Dynarr_length (pdump_root_objects) +
|
|
|
945 Dynarr_length (pdump_weak_object_chains));
|
|
452
|
946 size_t i;
|
|
442
|
947
|
|
458
|
948 PDUMP_WRITE_ALIGNED (size_t, count);
|
|
|
949 PDUMP_ALIGN_OUTPUT (pdump_static_Lisp_Object);
|
|
442
|
950
|
|
452
|
951 for (i=0; i<Dynarr_length (pdump_root_objects); i++)
|
|
442
|
952 {
|
|
458
|
953 pdump_static_Lisp_Object obj;
|
|
|
954 obj.address = Dynarr_at (pdump_root_objects, i);
|
|
|
955 obj.value = * obj.address;
|
|
|
956
|
|
|
957 if (POINTER_TYPE_P (XTYPE (obj.value)))
|
|
|
958 obj.value = wrap_object ((void *) pdump_get_entry (XRECORD_LHEADER (obj.value))->save_offset);
|
|
|
959
|
|
|
960 PDUMP_WRITE (pdump_static_Lisp_Object, obj);
|
|
442
|
961 }
|
|
|
962
|
|
452
|
963 for (i=0; i<Dynarr_length (pdump_weak_object_chains); i++)
|
|
442
|
964 {
|
|
|
965 pdump_entry_list_elmt *elmt;
|
|
458
|
966 pdump_static_Lisp_Object obj;
|
|
442
|
967
|
|
458
|
968 obj.address = Dynarr_at (pdump_weak_object_chains, i);
|
|
|
969 obj.value = * obj.address;
|
|
|
970
|
|
442
|
971 for (;;)
|
|
|
972 {
|
|
|
973 const struct lrecord_description *desc;
|
|
|
974 int pos;
|
|
458
|
975 elmt = pdump_get_entry (XRECORD_LHEADER (obj.value));
|
|
442
|
976 if (elmt)
|
|
|
977 break;
|
|
458
|
978 desc = XRECORD_LHEADER_IMPLEMENTATION (obj.value)->description;
|
|
442
|
979 for (pos = 0; desc[pos].type != XD_LO_LINK; pos++)
|
|
|
980 assert (desc[pos].type != XD_END);
|
|
|
981
|
|
458
|
982 obj.value = *(Lisp_Object *)(desc[pos].offset + (char *)(XRECORD_LHEADER (obj.value)));
|
|
442
|
983 }
|
|
458
|
984 obj.value = wrap_object ((void *) elmt->save_offset);
|
|
442
|
985
|
|
458
|
986 PDUMP_WRITE (pdump_static_Lisp_Object, obj);
|
|
442
|
987 }
|
|
|
988 }
|
|
|
989
|
|
|
990 void
|
|
|
991 pdump (void)
|
|
|
992 {
|
|
|
993 int i;
|
|
|
994 Lisp_Object t_console, t_device, t_frame;
|
|
|
995 int none;
|
|
458
|
996 pdump_header header;
|
|
442
|
997
|
|
446
|
998 flush_all_buffer_local_cache ();
|
|
|
999
|
|
442
|
1000 /* These appear in a DEFVAR_LISP, which does a staticpro() */
|
|
452
|
1001 t_console = Vterminal_console; Vterminal_console = Qnil;
|
|
|
1002 t_frame = Vterminal_frame; Vterminal_frame = Qnil;
|
|
|
1003 t_device = Vterminal_device; Vterminal_device = Qnil;
|
|
442
|
1004
|
|
452
|
1005 dump_add_opaque (&lrecord_implementations_table,
|
|
|
1006 lrecord_type_count * sizeof (lrecord_implementations_table[0]));
|
|
|
1007 dump_add_opaque (&lrecord_markers,
|
|
|
1008 lrecord_type_count * sizeof (lrecord_markers[0]));
|
|
442
|
1009
|
|
|
1010 pdump_hash = xnew_array_and_zero (pdump_entry_list_elmt *, PDUMP_HASHSIZE);
|
|
|
1011
|
|
|
1012 for (i=0; i<lrecord_type_count; i++)
|
|
|
1013 {
|
|
|
1014 pdump_object_table[i].first = 0;
|
|
|
1015 pdump_object_table[i].align = 8;
|
|
|
1016 pdump_object_table[i].count = 0;
|
|
|
1017 pdump_alert_undump_object[i] = 0;
|
|
|
1018 }
|
|
|
1019 pdump_struct_table.count = 0;
|
|
|
1020 pdump_struct_table.size = -1;
|
|
|
1021
|
|
|
1022 pdump_opaque_data_list.first = 0;
|
|
|
1023 pdump_opaque_data_list.align = 8;
|
|
|
1024 pdump_opaque_data_list.count = 0;
|
|
|
1025 depth = 0;
|
|
|
1026
|
|
452
|
1027 for (i=0; i<Dynarr_length (pdump_root_objects); i++)
|
|
|
1028 pdump_register_object (* Dynarr_at (pdump_root_objects, i));
|
|
442
|
1029
|
|
|
1030 none = 1;
|
|
|
1031 for (i=0; i<lrecord_type_count; i++)
|
|
|
1032 if (pdump_alert_undump_object[i])
|
|
|
1033 {
|
|
|
1034 if (none)
|
|
|
1035 printf ("Undumpable types list :\n");
|
|
|
1036 none = 0;
|
|
|
1037 printf (" - %s (%d)\n", lrecord_implementations_table[i]->name, pdump_alert_undump_object[i]);
|
|
|
1038 }
|
|
|
1039 if (!none)
|
|
|
1040 return;
|
|
|
1041
|
|
452
|
1042 for (i=0; i<Dynarr_length (pdump_root_struct_ptrs); i++)
|
|
|
1043 {
|
|
|
1044 pdump_root_struct_ptr info = Dynarr_at (pdump_root_struct_ptrs, i);
|
|
|
1045 pdump_register_struct (*(info.ptraddress), info.desc, 1);
|
|
|
1046 }
|
|
442
|
1047
|
|
458
|
1048 memcpy (header.signature, PDUMP_SIGNATURE, PDUMP_SIGNATURE_LEN);
|
|
|
1049 header.id = dump_id;
|
|
|
1050 header.reloc_address = 0;
|
|
|
1051 header.nb_root_struct_ptrs = Dynarr_length (pdump_root_struct_ptrs);
|
|
|
1052 header.nb_opaques = Dynarr_length (pdump_opaques);
|
|
442
|
1053
|
|
458
|
1054 cur_offset = ALIGN_SIZE (sizeof (header), ALIGNOF (max_align_t));
|
|
442
|
1055 max_size = 0;
|
|
|
1056
|
|
|
1057 pdump_scan_by_alignment (pdump_allocate_offset);
|
|
458
|
1058 cur_offset = ALIGN_SIZE (cur_offset, ALIGNOF (max_align_t));
|
|
|
1059 header.stab_offset = cur_offset;
|
|
442
|
1060
|
|
|
1061 pdump_buf = xmalloc (max_size);
|
|
|
1062 /* Avoid use of the `open' macro. We want the real function. */
|
|
|
1063 #undef open
|
|
|
1064 pdump_fd = open (EMACS_PROGNAME ".dmp",
|
|
|
1065 O_WRONLY | O_CREAT | O_TRUNC | OPEN_BINARY, 0666);
|
|
458
|
1066 pdump_out = fdopen (pdump_fd, "w");
|
|
442
|
1067
|
|
458
|
1068 fwrite (&header, sizeof (header), 1, pdump_out);
|
|
|
1069 PDUMP_ALIGN_OUTPUT (max_align_t);
|
|
442
|
1070
|
|
|
1071 pdump_scan_by_alignment (pdump_dump_data);
|
|
|
1072
|
|
458
|
1073 fseek (pdump_out, header.stab_offset, SEEK_SET);
|
|
442
|
1074
|
|
458
|
1075 pdump_dump_root_struct_ptrs ();
|
|
452
|
1076 pdump_dump_opaques ();
|
|
442
|
1077 pdump_dump_rtables ();
|
|
458
|
1078 pdump_dump_root_objects ();
|
|
442
|
1079
|
|
458
|
1080 fclose (pdump_out);
|
|
442
|
1081 close (pdump_fd);
|
|
458
|
1082
|
|
442
|
1083 free (pdump_buf);
|
|
|
1084
|
|
|
1085 free (pdump_hash);
|
|
|
1086
|
|
|
1087 Vterminal_console = t_console;
|
|
|
1088 Vterminal_frame = t_frame;
|
|
|
1089 Vterminal_device = t_device;
|
|
|
1090 }
|
|
|
1091
|
|
452
|
1092 static int
|
|
|
1093 pdump_load_check (void)
|
|
442
|
1094 {
|
|
452
|
1095 return (!memcmp (((pdump_header *)pdump_start)->signature,
|
|
|
1096 PDUMP_SIGNATURE, PDUMP_SIGNATURE_LEN)
|
|
|
1097 && ((pdump_header *)pdump_start)->id == dump_id);
|
|
442
|
1098 }
|
|
|
1099
|
|
458
|
1100 /*----------------------------------------------------------------------*/
|
|
|
1101 /* Reading the dump file */
|
|
|
1102 /*----------------------------------------------------------------------*/
|
|
452
|
1103 static int
|
|
|
1104 pdump_load_finish (void)
|
|
442
|
1105 {
|
|
|
1106 int i;
|
|
|
1107 char *p;
|
|
|
1108 EMACS_INT delta;
|
|
|
1109 EMACS_INT count;
|
|
458
|
1110 pdump_header *header = (pdump_header *)pdump_start;
|
|
442
|
1111
|
|
|
1112 pdump_end = pdump_start + pdump_length;
|
|
|
1113
|
|
458
|
1114 delta = ((EMACS_INT)pdump_start) - header->reloc_address;
|
|
|
1115 p = pdump_start + header->stab_offset;
|
|
442
|
1116
|
|
452
|
1117 /* Put back the pdump_root_struct_ptrs */
|
|
458
|
1118 p = (char *) ALIGN_PTR (p, ALIGNOF (pdump_static_pointer));
|
|
|
1119 for (i=0; i<header->nb_root_struct_ptrs; i++)
|
|
442
|
1120 {
|
|
458
|
1121 pdump_static_pointer ptr = PDUMP_READ (p, pdump_static_pointer);
|
|
|
1122 (* ptr.address) = ptr.value + delta;
|
|
442
|
1123 }
|
|
|
1124
|
|
452
|
1125 /* Put back the pdump_opaques */
|
|
458
|
1126 for (i=0; i<header->nb_opaques; i++)
|
|
442
|
1127 {
|
|
458
|
1128 pdump_opaque info = PDUMP_READ_ALIGNED (p, pdump_opaque);
|
|
452
|
1129 memcpy (info.varaddress, p, info.size);
|
|
|
1130 p += info.size;
|
|
442
|
1131 }
|
|
|
1132
|
|
|
1133 /* Do the relocations */
|
|
|
1134 pdump_rt_list = p;
|
|
|
1135 count = 2;
|
|
|
1136 for (;;)
|
|
|
1137 {
|
|
458
|
1138 pdump_reloc_table rt = PDUMP_READ_ALIGNED (p, pdump_reloc_table);
|
|
|
1139 p = (char *) ALIGN_PTR (p, ALIGNOF (char *));
|
|
442
|
1140 if (rt.desc)
|
|
|
1141 {
|
|
458
|
1142 char **reloc = (char **)p;
|
|
442
|
1143 for (i=0; i < rt.count; i++)
|
|
|
1144 {
|
|
458
|
1145 reloc[i] += delta;
|
|
|
1146 pdump_reloc_one (reloc[i], delta, rt.desc);
|
|
442
|
1147 }
|
|
458
|
1148 p += rt.count * sizeof (char *);
|
|
442
|
1149 } else
|
|
|
1150 if (!(--count))
|
|
|
1151 break;
|
|
|
1152 }
|
|
|
1153
|
|
452
|
1154 /* Put the pdump_root_objects variables in place */
|
|
458
|
1155 i = PDUMP_READ_ALIGNED (p, size_t);
|
|
|
1156 p = (char *) ALIGN_PTR (p, ALIGNOF (pdump_static_Lisp_Object));
|
|
|
1157 while (i--)
|
|
442
|
1158 {
|
|
458
|
1159 pdump_static_Lisp_Object obj = PDUMP_READ (p, pdump_static_Lisp_Object);
|
|
442
|
1160
|
|
458
|
1161 if (POINTER_TYPE_P (XTYPE (obj.value)))
|
|
|
1162 obj.value = wrap_object ((char *) XPNTR (obj.value) + delta);
|
|
442
|
1163
|
|
458
|
1164 (* obj.address) = obj.value;
|
|
442
|
1165 }
|
|
|
1166
|
|
|
1167 /* Final cleanups */
|
|
|
1168 /* reorganize hash tables */
|
|
|
1169 p = pdump_rt_list;
|
|
|
1170 for (;;)
|
|
|
1171 {
|
|
458
|
1172 pdump_reloc_table rt = PDUMP_READ_ALIGNED (p, pdump_reloc_table);
|
|
|
1173 p = (char *) ALIGN_PTR (p, ALIGNOF (Lisp_Object));
|
|
442
|
1174 if (!rt.desc)
|
|
|
1175 break;
|
|
|
1176 if (rt.desc == hash_table_description)
|
|
|
1177 {
|
|
|
1178 for (i=0; i < rt.count; i++)
|
|
|
1179 pdump_reorganize_hash_table (PDUMP_READ (p, Lisp_Object));
|
|
|
1180 break;
|
|
|
1181 } else
|
|
|
1182 p += sizeof (Lisp_Object) * rt.count;
|
|
|
1183 }
|
|
|
1184
|
|
|
1185 return 1;
|
|
|
1186 }
|
|
|
1187
|
|
|
1188 #ifdef WIN32_NATIVE
|
|
|
1189 /* Free the mapped file if we decide we don't want it after all */
|
|
452
|
1190 static void
|
|
|
1191 pdump_file_unmap (void)
|
|
442
|
1192 {
|
|
|
1193 UnmapViewOfFile (pdump_start);
|
|
|
1194 CloseHandle (pdump_hFile);
|
|
|
1195 CloseHandle (pdump_hMap);
|
|
|
1196 }
|
|
|
1197
|
|
452
|
1198 static int
|
|
|
1199 pdump_file_get (const char *path)
|
|
442
|
1200 {
|
|
|
1201
|
|
|
1202 pdump_hFile = CreateFile (path,
|
|
|
1203 GENERIC_READ + GENERIC_WRITE, /* Required for copy on write */
|
|
|
1204 0, /* Not shared */
|
|
|
1205 NULL, /* Not inheritable */
|
|
|
1206 OPEN_EXISTING,
|
|
|
1207 FILE_ATTRIBUTE_NORMAL,
|
|
|
1208 NULL); /* No template file */
|
|
|
1209 if (pdump_hFile == INVALID_HANDLE_VALUE)
|
|
|
1210 return 0;
|
|
|
1211
|
|
|
1212 pdump_length = GetFileSize (pdump_hFile, NULL);
|
|
|
1213 pdump_hMap = CreateFileMapping (pdump_hFile,
|
|
|
1214 NULL, /* No security attributes */
|
|
|
1215 PAGE_WRITECOPY, /* Copy on write */
|
|
|
1216 0, /* Max size, high half */
|
|
|
1217 0, /* Max size, low half */
|
|
|
1218 NULL); /* Unnamed */
|
|
|
1219 if (pdump_hMap == INVALID_HANDLE_VALUE)
|
|
|
1220 return 0;
|
|
|
1221
|
|
|
1222 pdump_start = MapViewOfFile (pdump_hMap,
|
|
452
|
1223 FILE_MAP_COPY, /* Copy on write */
|
|
442
|
1224 0, /* Start at zero */
|
|
|
1225 0,
|
|
|
1226 0); /* Map all of it */
|
|
|
1227 pdump_free = pdump_file_unmap;
|
|
|
1228 return 1;
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 /* pdump_resource_free is called (via the pdump_free pointer) to release
|
|
|
1232 any resources allocated by pdump_resource_get. Since the Windows API
|
|
|
1233 specs specifically state that you don't need to (and shouldn't) free the
|
|
|
1234 resources allocated by FindResource, LoadResource, and LockResource this
|
|
|
1235 routine does nothing. */
|
|
452
|
1236 static void
|
|
|
1237 pdump_resource_free (void)
|
|
442
|
1238 {
|
|
|
1239 }
|
|
|
1240
|
|
452
|
1241 static int
|
|
|
1242 pdump_resource_get (void)
|
|
442
|
1243 {
|
|
452
|
1244 HRSRC hRes; /* Handle to dump resource */
|
|
|
1245 HRSRC hResLoad; /* Handle to loaded dump resource */
|
|
442
|
1246
|
|
|
1247 /* See Q126630 which describes how Windows NT and 95 trap writes to
|
|
|
1248 resource sections and duplicate the page to allow the write to proceed.
|
|
|
1249 It also describes how to make the resource section read/write (and hence
|
|
|
1250 private to each process). Doing this avoids the exceptions and related
|
|
|
1251 overhead, but causes the resource section to be private to each process
|
|
|
1252 that is running XEmacs. Since the resource section contains little
|
|
|
1253 other than the dumped data, which should be private to each process, we
|
|
|
1254 make the whole resource section read/write so we don't have to copy it. */
|
|
|
1255
|
|
|
1256 hRes = FindResource (NULL, MAKEINTRESOURCE(101), "DUMP");
|
|
|
1257 if (hRes == NULL)
|
|
|
1258 return 0;
|
|
|
1259
|
|
|
1260 /* Found it, use the data in the resource */
|
|
|
1261 hResLoad = LoadResource (NULL, hRes);
|
|
|
1262 if (hResLoad == NULL)
|
|
|
1263 return 0;
|
|
|
1264
|
|
|
1265 pdump_start = LockResource (hResLoad);
|
|
|
1266 if (pdump_start == NULL)
|
|
|
1267 return 0;
|
|
|
1268
|
|
|
1269 pdump_free = pdump_resource_free;
|
|
|
1270 pdump_length = SizeofResource (NULL, hRes);
|
|
452
|
1271 if (pdump_length <= sizeof (pdump_header))
|
|
442
|
1272 {
|
|
|
1273 pdump_start = 0;
|
|
|
1274 return 0;
|
|
|
1275 }
|
|
|
1276
|
|
|
1277 return 1;
|
|
|
1278 }
|
|
|
1279
|
|
|
1280 #else /* !WIN32_NATIVE */
|
|
|
1281
|
|
|
1282 static void *pdump_mallocadr;
|
|
|
1283
|
|
452
|
1284 static void
|
|
|
1285 pdump_file_free (void)
|
|
442
|
1286 {
|
|
|
1287 xfree (pdump_mallocadr);
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 #ifdef HAVE_MMAP
|
|
452
|
1291 static void
|
|
|
1292 pdump_file_unmap (void)
|
|
442
|
1293 {
|
|
|
1294 munmap (pdump_start, pdump_length);
|
|
|
1295 }
|
|
|
1296 #endif
|
|
|
1297
|
|
452
|
1298 static int
|
|
|
1299 pdump_file_get (const char *path)
|
|
442
|
1300 {
|
|
|
1301 int fd = open (path, O_RDONLY | OPEN_BINARY);
|
|
|
1302 if (fd<0)
|
|
|
1303 return 0;
|
|
|
1304
|
|
|
1305 pdump_length = lseek (fd, 0, SEEK_END);
|
|
452
|
1306 if (pdump_length < sizeof (pdump_header))
|
|
442
|
1307 {
|
|
|
1308 close (fd);
|
|
|
1309 return 0;
|
|
|
1310 }
|
|
|
1311
|
|
|
1312 lseek (fd, 0, SEEK_SET);
|
|
|
1313
|
|
|
1314 #ifdef HAVE_MMAP
|
|
456
|
1315 /* Unix 98 requires that sys/mman.h define MAP_FAILED,
|
|
|
1316 but many earlier implementations don't. */
|
|
|
1317 # ifndef MAP_FAILED
|
|
|
1318 # define MAP_FAILED ((void *) -1L)
|
|
|
1319 # endif
|
|
442
|
1320 pdump_start = (char *) mmap (0, pdump_length, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
|
|
452
|
1321 if (pdump_start != (char *) MAP_FAILED)
|
|
442
|
1322 {
|
|
|
1323 pdump_free = pdump_file_unmap;
|
|
|
1324 close (fd);
|
|
|
1325 return 1;
|
|
|
1326 }
|
|
456
|
1327 #endif /* HAVE_MMAP */
|
|
442
|
1328
|
|
452
|
1329 pdump_mallocadr = xmalloc (pdump_length+255);
|
|
442
|
1330 pdump_free = pdump_file_free;
|
|
|
1331 pdump_start = (char *)((255 + (unsigned long)pdump_mallocadr) & ~255);
|
|
446
|
1332 read (fd, pdump_start, pdump_length);
|
|
442
|
1333
|
|
446
|
1334 close (fd);
|
|
442
|
1335 return 1;
|
|
|
1336 }
|
|
|
1337 #endif /* !WIN32_NATIVE */
|
|
|
1338
|
|
|
1339
|
|
452
|
1340 static int
|
|
|
1341 pdump_file_try (char *exe_path)
|
|
442
|
1342 {
|
|
|
1343 char *w;
|
|
|
1344
|
|
452
|
1345 w = exe_path + strlen (exe_path);
|
|
442
|
1346 do
|
|
|
1347 {
|
|
|
1348 sprintf (w, "-%s-%08x.dmp", EMACS_VERSION, dump_id);
|
|
|
1349 if (pdump_file_get (exe_path))
|
|
|
1350 {
|
|
|
1351 if (pdump_load_check ())
|
|
|
1352 return 1;
|
|
452
|
1353 pdump_free ();
|
|
442
|
1354 }
|
|
|
1355
|
|
|
1356 sprintf (w, "-%08x.dmp", dump_id);
|
|
|
1357 if (pdump_file_get (exe_path))
|
|
|
1358 {
|
|
|
1359 if (pdump_load_check ())
|
|
|
1360 return 1;
|
|
452
|
1361 pdump_free ();
|
|
442
|
1362 }
|
|
|
1363
|
|
|
1364 sprintf (w, ".dmp");
|
|
|
1365 if (pdump_file_get (exe_path))
|
|
|
1366 {
|
|
|
1367 if (pdump_load_check ())
|
|
|
1368 return 1;
|
|
452
|
1369 pdump_free ();
|
|
442
|
1370 }
|
|
|
1371
|
|
|
1372 do
|
|
|
1373 w--;
|
|
|
1374 while (w>exe_path && !IS_DIRECTORY_SEP (*w) && (*w != '-') && (*w != '.'));
|
|
|
1375 }
|
|
|
1376 while (w>exe_path && !IS_DIRECTORY_SEP (*w));
|
|
|
1377 return 0;
|
|
|
1378 }
|
|
|
1379
|
|
452
|
1380 int
|
|
|
1381 pdump_load (const char *argv0)
|
|
442
|
1382 {
|
|
|
1383 char exe_path[PATH_MAX];
|
|
|
1384 #ifdef WIN32_NATIVE
|
|
|
1385 GetModuleFileName (NULL, exe_path, PATH_MAX);
|
|
|
1386 #else /* !WIN32_NATIVE */
|
|
|
1387 char *w;
|
|
|
1388 const char *dir, *p;
|
|
|
1389
|
|
|
1390 dir = argv0;
|
|
|
1391 if (dir[0] == '-')
|
|
|
1392 {
|
|
|
1393 /* XEmacs as a login shell, oh goody! */
|
|
452
|
1394 dir = getenv ("SHELL");
|
|
442
|
1395 }
|
|
|
1396
|
|
452
|
1397 p = dir + strlen (dir);
|
|
442
|
1398 while (p != dir && !IS_ANY_SEP (p[-1])) p--;
|
|
|
1399
|
|
|
1400 if (p != dir)
|
|
|
1401 {
|
|
|
1402 /* invocation-name includes a directory component -- presumably it
|
|
|
1403 is relative to cwd, not $PATH */
|
|
|
1404 strcpy (exe_path, dir);
|
|
|
1405 }
|
|
|
1406 else
|
|
|
1407 {
|
|
|
1408 const char *path = getenv ("PATH");
|
|
|
1409 const char *name = p;
|
|
|
1410 for (;;)
|
|
|
1411 {
|
|
|
1412 p = path;
|
|
|
1413 while (*p && *p != SEPCHAR)
|
|
|
1414 p++;
|
|
|
1415 if (p == path)
|
|
|
1416 {
|
|
|
1417 exe_path[0] = '.';
|
|
|
1418 w = exe_path + 1;
|
|
|
1419 }
|
|
|
1420 else
|
|
|
1421 {
|
|
|
1422 memcpy (exe_path, path, p - path);
|
|
|
1423 w = exe_path + (p - path);
|
|
|
1424 }
|
|
|
1425 if (!IS_DIRECTORY_SEP (w[-1]))
|
|
|
1426 {
|
|
|
1427 *w++ = '/';
|
|
|
1428 }
|
|
452
|
1429 strcpy (w, name);
|
|
442
|
1430
|
|
|
1431 /* ### #$%$#^$^@%$^#%@$ ! */
|
|
|
1432 #ifdef access
|
|
|
1433 #undef access
|
|
|
1434 #endif
|
|
|
1435
|
|
|
1436 if (!access (exe_path, X_OK))
|
|
|
1437 break;
|
|
|
1438 if (!*p)
|
|
|
1439 {
|
|
|
1440 /* Oh well, let's have some kind of default */
|
|
|
1441 sprintf (exe_path, "./%s", name);
|
|
|
1442 break;
|
|
|
1443 }
|
|
|
1444 path = p+1;
|
|
|
1445 }
|
|
|
1446 }
|
|
|
1447 #endif /* WIN32_NATIVE */
|
|
|
1448
|
|
|
1449 if (pdump_file_try (exe_path))
|
|
|
1450 {
|
|
|
1451 pdump_load_finish ();
|
|
|
1452 return 1;
|
|
|
1453 }
|
|
|
1454
|
|
|
1455 #ifdef WIN32_NATIVE
|
|
|
1456 if (pdump_resource_get ())
|
|
|
1457 {
|
|
|
1458 if (pdump_load_check ())
|
|
|
1459 {
|
|
|
1460 pdump_load_finish ();
|
|
|
1461 return 1;
|
|
|
1462 }
|
|
|
1463 pdump_free ();
|
|
|
1464 }
|
|
|
1465 #endif
|
|
|
1466
|
|
|
1467 return 0;
|
|
|
1468 }
|
