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111
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1 /* Support routines shared by all runtimes.
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145
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2 Copyright (C) 2011-2020 Free Software Foundation, Inc.
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111
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3 Contributed by Iain Sandoe (partially split from objc-act.c)
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #include "config.h"
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22 #include "system.h"
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23 #include "coretypes.h"
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24 #include "tm.h"
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25 #include "stringpool.h"
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26
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27 #ifdef OBJCPLUS
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28 #include "cp/cp-tree.h"
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29 #else
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30 #include "c/c-tree.h"
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31 #include "c/c-lang.h"
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32 #endif
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33 #include "c-family/c-objc.h"
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34 #include "objc-act.h"
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35
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36 /* When building Objective-C++, we are not linking against the C front-end
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37 and so need to replicate the C tree-construction functions in some way. */
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38 #ifdef OBJCPLUS
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39 #define OBJCP_REMAP_FUNCTIONS
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40 #include "objcp-decl.h"
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41 #endif /* OBJCPLUS */
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42
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43 /* Hooks for string decls etc. */
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44 #include "objc-runtime-hooks.h"
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45
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46 #include "objc-runtime-shared-support.h"
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47 #include "objc-encoding.h"
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48
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49 /* rt_trees identifiers - shared between NeXT implementations. These allow
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50 the FE to tag meta-data in a manner that survives LTO and can be used when
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51 the runtime requires that certain meta-data items appear in particular
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52 named sections. */
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53 #include "objc-next-metadata-tags.h"
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54 extern GTY(()) tree objc_rt_trees[OCTI_RT_META_MAX];
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55
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56 /* Rather than repeatedly looking up the identifiers, we save them here. */
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57 tree objc_rt_trees[OCTI_RT_META_MAX];
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58
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59 /* For building an objc struct. These might not be used when this file
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60 is compiled as part of obj-c++. */
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61
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62 static bool objc_building_struct;
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63 static struct c_struct_parse_info *objc_struct_info ATTRIBUTE_UNUSED;
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64
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65 /* Start building a struct for objc. */
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66
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67 tree
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68 objc_start_struct (tree name)
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69 {
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70 gcc_assert (!objc_building_struct);
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71 objc_building_struct = true;
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72 return start_struct (input_location, RECORD_TYPE, name, &objc_struct_info);
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73 }
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74
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75 /* Finish building a struct for objc. */
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76
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77 tree
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78 objc_finish_struct (tree type, tree fieldlist)
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79 {
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80 gcc_assert (objc_building_struct);
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81 objc_building_struct = false;
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82 return finish_struct (input_location, type, fieldlist, NULL_TREE,
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83 objc_struct_info);
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84 }
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85
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86 tree
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87 build_sized_array_type (tree base_type, int size)
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88 {
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89 tree index_type = build_index_type (build_int_cst (NULL_TREE, size - 1));
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90 return build_array_type (base_type, index_type);
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91 }
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92
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93 /* Create a declaration for field NAME of a given TYPE. */
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94
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95 static tree
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96 create_field_decl (tree type, const char *name)
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97 {
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98 return build_decl (input_location,
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99 FIELD_DECL, get_identifier (name), type);
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100 }
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101
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102 tree
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103 add_field_decl (tree type, const char *name, tree **chain)
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104 {
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105 tree field = create_field_decl (type, name);
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106
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107 if (*chain != NULL)
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108 **chain = field;
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109 *chain = &DECL_CHAIN (field);
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110
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111 return field;
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112 }
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113
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114 /* Create a global, static declaration for variable NAME of a given TYPE. The
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115 finish_var_decl() routine will need to be called on it afterwards. */
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116
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117 tree
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118 start_var_decl (tree type, const char *name)
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119 {
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120 tree var = build_decl (input_location,
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121 VAR_DECL, get_identifier (name), type);
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122 TREE_STATIC (var) = 1;
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123 DECL_INITIAL (var) = error_mark_node; /* A real initializer is coming... */
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124 DECL_IGNORED_P (var) = 1;
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125 DECL_ARTIFICIAL (var) = 1;
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126 DECL_CONTEXT (var) = NULL_TREE;
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127 #ifdef OBJCPLUS
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128 DECL_THIS_STATIC (var) = 1; /* squash redeclaration errors */
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129 #endif
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130 return var;
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131 }
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132
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133 /* Finish off the variable declaration created by start_var_decl(). */
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134
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135 void
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136 finish_var_decl (tree var, tree initializer)
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137 {
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138 finish_decl (var, input_location, initializer, NULL_TREE, NULL_TREE);
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139 }
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140
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141 /* Just a handy wrapper for add_objc_string. */
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142
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143 tree
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144 build_selector (tree ident)
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145 {
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146 return convert (objc_selector_type, add_objc_string (ident, meth_var_names));
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147 }
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148
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149 /* --- templates --- */
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150
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151 /* Set 'objc_super_template' to the data type node for 'struct _objc_super'.
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152 This needs to be done just once per compilation. */
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153
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154 /* struct _objc_super {
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155 struct _objc_object *self;
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156 struct _objc_class *super_class;
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157 [or Class cls; for the abi v2]
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158 }; */
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159
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160 void
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161 build_super_template (void)
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162 {
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163 tree decls, *chain = NULL;
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164
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165 objc_super_template = objc_start_struct (get_identifier (UTAG_SUPER));
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166
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167 /* struct _objc_object *self; */
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168 decls = add_field_decl (objc_object_type, "self", &chain);
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169
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170 /* struct _objc_class *super_class; */
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171 add_field_decl (build_pointer_type (objc_class_template),
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172 "super_class", &chain);
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173
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174 objc_finish_struct (objc_super_template, decls);
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175 }
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176
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177 /* To accomplish method prototyping without generating all kinds of
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178 inane warnings, the definition of the dispatch table entries were
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179 changed from:
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180
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181 struct objc_method { SEL _cmd; ...; id (*_imp)(); };
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182 to:
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183 struct objc_method { SEL _cmd; ...; void *_imp; }; */
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184
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185 tree
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186 build_method_template (void)
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187 {
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188 tree _SLT_record;
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189 tree decls, *chain = NULL;
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190
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191 _SLT_record = objc_start_struct (get_identifier (UTAG_METHOD));
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192
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193 /* SEL _cmd; */
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194 decls = add_field_decl (objc_selector_type, "_cmd", &chain);
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195
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196 /* char *method_types; */
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197 add_field_decl (string_type_node, "method_types", &chain);
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198
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199 /* void *_imp; */
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200 add_field_decl (build_pointer_type (void_type_node), "_imp", &chain);
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201
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202 objc_finish_struct (_SLT_record, decls);
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203
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204 return _SLT_record;
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205 }
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206
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207 tree
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208 build_method_prototype_template (void)
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209 {
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210 tree proto_record;
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211 tree decls, *chain = NULL;
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212
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213 proto_record = objc_start_struct (get_identifier (UTAG_METHOD_PROTOTYPE));
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214
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215 /* SEL _cmd; */
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216 decls = add_field_decl (objc_selector_type, "_cmd", &chain);
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217
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218 /* char *method_types; */
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219 add_field_decl (string_type_node, "method_types", &chain);
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220
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221 objc_finish_struct (proto_record, decls);
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222
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223 return proto_record;
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224 }
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225
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226 /* struct {
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227 struct _objc__method_prototype_list *method_next;
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228 int method_count;
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229 struct objc_method method_list[method_count];
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230 }; */
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231
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232 tree
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233 build_method_list_template (tree list_type, int size)
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234 {
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235 tree objc_ivar_list_record;
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236 tree array_type, decls, *chain = NULL;
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237
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238 objc_ivar_list_record = objc_start_struct (NULL_TREE);
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239
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240 /* struct _objc__method_prototype_list *method_next; */
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241 decls = add_field_decl (objc_method_proto_list_ptr, "method_next", &chain);
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242
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243 /* int method_count; */
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244 add_field_decl (integer_type_node, "method_count", &chain);
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245
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246 /* struct objc_method method_list[]; */
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247 array_type = build_sized_array_type (list_type, size);
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248 add_field_decl (array_type, "method_list", &chain);
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249
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250 objc_finish_struct (objc_ivar_list_record, decls);
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251
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252 return objc_ivar_list_record;
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253 }
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254
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255 /* struct objc_method_prototype_list {
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256 int count;
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257 struct objc_method_prototype {
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258 SEL name;
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259 char *types;
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260 } list[1];
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261 }; */
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262
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263 tree
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264 build_method_prototype_list_template (tree list_type, int size)
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265 {
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266 tree objc_ivar_list_record;
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267 tree array_type, decls, *chain = NULL;
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268
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269 /* Generate an unnamed struct definition. */
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270
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271 objc_ivar_list_record = objc_start_struct (NULL_TREE);
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272
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273 /* int method_count; */
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274 decls = add_field_decl (integer_type_node, "method_count", &chain);
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275
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276 /* struct objc_method method_list[]; */
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277 array_type = build_sized_array_type (list_type, size);
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278 add_field_decl (array_type, "method_list", &chain);
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279
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280 objc_finish_struct (objc_ivar_list_record, decls);
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281
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282 return objc_ivar_list_record;
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283 }
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284
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285 /* --- names, decls entry --- */
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286
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287 /* For each string section we have a chain which maps identifier nodes
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288 to decls for the strings. */
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289
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290 static GTY(()) int meth_var_names_idx;
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291 static GTY(()) int meth_var_types_idx;
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292 static GTY(()) int property_name_attr_idx;
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293
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294 tree
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295 add_objc_string (tree ident, string_section section)
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296 {
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297 tree *chain, decl, type;
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298 char buf[BUFSIZE];
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299
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300 switch (section)
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301 {
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302 case class_names:
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303 chain = &class_names_chain;
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304 snprintf (buf, BUFSIZE, "_OBJC_ClassName_%s", IDENTIFIER_POINTER (ident));
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305 break;
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306 case meth_var_names:
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307 chain = &meth_var_names_chain;
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308 snprintf (buf, BUFSIZE, "_OBJC_METH_VAR_NAME_%d", meth_var_names_idx++);
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309 break;
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310 case meth_var_types:
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311 chain = &meth_var_types_chain;
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312 snprintf (buf, BUFSIZE, "_OBJC_METH_VAR_TYPE_%d", meth_var_types_idx++);
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313 break;
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314 case prop_names_attr:
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315 chain = &prop_names_attr_chain;
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316 snprintf (buf, BUFSIZE, "_OBJC_PropertyAttributeOrName_%d", property_name_attr_idx++);
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317 break;
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318 default:
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319 gcc_unreachable ();
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320 }
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321
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322 while (*chain)
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323 {
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324 if (TREE_VALUE (*chain) == ident)
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325 return convert (string_type_node,
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326 build_unary_op (input_location,
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327 ADDR_EXPR, TREE_PURPOSE (*chain), 1));
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328
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329 chain = &TREE_CHAIN (*chain);
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330 }
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331
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332 type = build_sized_array_type (char_type_node, IDENTIFIER_LENGTH (ident) + 1);
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333 /* Get a runtime-specific string decl which will be finish_var()'ed in
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334 generate_strings (). */
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335 decl = (*runtime.string_decl) (type, buf, section);
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336 TREE_CONSTANT (decl) = 1;
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337 *chain = tree_cons (decl, ident, NULL_TREE);
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338
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339 return convert (string_type_node,
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340 build_unary_op (input_location, ADDR_EXPR, decl, 1));
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341 }
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342
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343 /* --- shared metadata routines --- */
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344
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345 tree
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346 build_descriptor_table_initializer (tree type, tree entries)
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347 {
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348 vec<constructor_elt, va_gc> *inits = NULL;
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349
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350 do
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351 {
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352 vec<constructor_elt, va_gc> *elts = NULL;
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353
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354 CONSTRUCTOR_APPEND_ELT (elts, NULL_TREE,
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355 build_selector (METHOD_SEL_NAME (entries)));
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356 CONSTRUCTOR_APPEND_ELT (elts, NULL_TREE,
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357 add_objc_string (METHOD_ENCODING (entries),
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358 meth_var_types));
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359
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360 CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE,
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361 objc_build_constructor (type, elts));
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362
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363 entries = DECL_CHAIN (entries);
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364 }
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365 while (entries);
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366
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367 return objc_build_constructor (build_array_type (type, 0), inits);
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368 }
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369
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370 tree
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371 build_dispatch_table_initializer (tree type, tree entries)
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372 {
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373 vec<constructor_elt, va_gc> *inits = NULL;
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374
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375 do
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376 {
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377 vec<constructor_elt, va_gc> *elems = NULL;
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378 tree expr;
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379
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380 CONSTRUCTOR_APPEND_ELT (elems, NULL_TREE,
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381 build_selector (METHOD_SEL_NAME (entries)));
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382
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383 /* Generate the method encoding if we don't have one already. */
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384 if (! METHOD_ENCODING (entries))
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385 METHOD_ENCODING (entries) =
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386 encode_method_prototype (entries);
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387
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388 CONSTRUCTOR_APPEND_ELT (elems, NULL_TREE,
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389 add_objc_string (METHOD_ENCODING (entries),
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390 meth_var_types));
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391
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392 expr = convert (ptr_type_node,
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393 build_unary_op (input_location, ADDR_EXPR,
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394 METHOD_DEFINITION (entries), 1));
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395 CONSTRUCTOR_APPEND_ELT (elems, NULL_TREE, expr);
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396
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397 CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE,
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398 objc_build_constructor (type, elems));
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399
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400 entries = DECL_CHAIN (entries);
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401 }
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402 while (entries);
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403
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404 return objc_build_constructor (build_array_type (type, 0), inits);
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405 }
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406
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407 /* Used only by build_*_selector_translation_table (). */
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408 void
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409 diagnose_missing_method (tree meth, location_t here)
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410 {
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411 tree method_chain;
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412 bool found = false;
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|
413 for (method_chain = meth_var_names_chain;
|
|
|
414 method_chain;
|
|
|
415 method_chain = TREE_CHAIN (method_chain))
|
|
|
416 {
|
|
|
417 if (TREE_VALUE (method_chain) == meth)
|
|
|
418 {
|
|
|
419 found = true;
|
|
|
420 break;
|
|
|
421 }
|
|
|
422 }
|
|
|
423
|
|
|
424 if (!found)
|
|
|
425 warning_at (here, 0, "creating selector for nonexistent method %qE",
|
|
|
426 meth);
|
|
|
427 }
|
|
|
428
|
|
|
429
|
|
|
430 static tree
|
|
|
431 init_module_descriptor (tree type, long vers)
|
|
|
432 {
|
|
|
433 tree expr, ltyp;
|
|
|
434 location_t loc;
|
|
|
435 vec<constructor_elt, va_gc> *v = NULL;
|
|
|
436
|
|
|
437 /* No really useful place to point to. */
|
|
|
438 loc = UNKNOWN_LOCATION;
|
|
|
439
|
|
|
440 /* version = { 1, ... } */
|
|
|
441
|
|
|
442 expr = build_int_cst (long_integer_type_node, vers);
|
|
|
443 CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, expr);
|
|
|
444
|
|
|
445 /* size = { ..., sizeof (struct _objc_module), ... } */
|
|
|
446
|
|
|
447 expr = convert (long_integer_type_node,
|
|
|
448 size_in_bytes (objc_module_template));
|
|
|
449 CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, expr);
|
|
|
450
|
|
|
451 /* Don't provide any file name for security reasons. */
|
|
|
452 /* name = { ..., "", ... } */
|
|
|
453
|
|
|
454 expr = add_objc_string (get_identifier (""), class_names);
|
|
|
455 CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, expr);
|
|
|
456
|
|
|
457 /* symtab = { ..., _OBJC_SYMBOLS, ... } */
|
|
|
458
|
|
|
459 ltyp = build_pointer_type (xref_tag (RECORD_TYPE,
|
|
|
460 get_identifier (UTAG_SYMTAB)));
|
|
|
461 if (UOBJC_SYMBOLS_decl)
|
|
|
462 expr = convert (ltyp, build_unary_op (loc,
|
|
|
463 ADDR_EXPR, UOBJC_SYMBOLS_decl, 0));
|
|
|
464 else
|
|
|
465 expr = convert (ltyp, null_pointer_node);
|
|
|
466 CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, expr);
|
|
|
467
|
|
|
468 return objc_build_constructor (type, v);
|
|
|
469 }
|
|
|
470
|
|
|
471 /* Write out the data structures to describe Objective C classes defined.
|
|
|
472
|
|
|
473 struct _objc_module { ... } _OBJC_MODULE = { ... }; */
|
|
|
474
|
|
|
475 void
|
|
|
476 build_module_descriptor (long vers, tree attr)
|
|
|
477 {
|
|
|
478 tree decls, *chain = NULL;
|
|
|
479
|
|
|
480 #ifdef OBJCPLUS
|
|
|
481 push_lang_context (lang_name_c); /* extern "C" */
|
|
|
482 #endif
|
|
|
483
|
|
|
484 objc_module_template = objc_start_struct (get_identifier (UTAG_MODULE));
|
|
|
485
|
|
|
486 /* long version; */
|
|
|
487 decls = add_field_decl (long_integer_type_node, "version", &chain);
|
|
|
488
|
|
|
489 /* long size; */
|
|
|
490 add_field_decl (long_integer_type_node, "size", &chain);
|
|
|
491
|
|
|
492 /* char *name; */
|
|
|
493 add_field_decl (string_type_node, "name", &chain);
|
|
|
494
|
|
|
495 /* struct _objc_symtab *symtab; */
|
|
|
496 add_field_decl (build_pointer_type (xref_tag (RECORD_TYPE,
|
|
|
497 get_identifier (UTAG_SYMTAB))),
|
|
|
498 "symtab", &chain);
|
|
|
499
|
|
|
500 objc_finish_struct (objc_module_template, decls);
|
|
|
501
|
|
|
502 /* Create an instance of "_objc_module". */
|
|
|
503 UOBJC_MODULES_decl = start_var_decl (objc_module_template, "_OBJC_Module");
|
|
|
504
|
|
|
505 /* This is the root of the metadata for defined classes and categories, it
|
|
|
506 is referenced by the runtime and, therefore, needed. */
|
|
|
507 DECL_PRESERVE_P (UOBJC_MODULES_decl) = 1;
|
|
|
508
|
|
|
509 /* Squash `defined but not used' warning. */
|
|
|
510 TREE_USED (UOBJC_MODULES_decl) = 1;
|
|
|
511
|
|
|
512 /* Allow the runtime to mark meta-data such that it can be assigned to target
|
|
|
513 specific sections by the back-end. */
|
|
|
514 if (attr)
|
|
|
515 DECL_ATTRIBUTES (UOBJC_MODULES_decl) = attr;
|
|
|
516
|
|
|
517 finish_var_decl (UOBJC_MODULES_decl,
|
|
|
518 init_module_descriptor (TREE_TYPE (UOBJC_MODULES_decl),
|
|
|
519 vers));
|
|
|
520
|
|
|
521 #ifdef OBJCPLUS
|
|
|
522 pop_lang_context ();
|
|
|
523 #endif
|
|
|
524 }
|
|
|
525
|
|
|
526 tree
|
|
|
527 build_ivar_list_initializer (tree type, tree field_decl)
|
|
|
528 {
|
|
|
529 vec<constructor_elt, va_gc> *inits = NULL;
|
|
|
530
|
|
|
531 for (; field_decl; field_decl = DECL_CHAIN (field_decl))
|
|
|
532 if (TREE_CODE (field_decl) == FIELD_DECL)
|
|
|
533 {
|
|
|
534 vec<constructor_elt, va_gc> *ivar = NULL;
|
|
|
535 tree id;
|
|
|
536
|
|
|
537 /* Set name. */
|
|
|
538 if (DECL_NAME (field_decl))
|
|
|
539 CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE,
|
|
|
540 add_objc_string (DECL_NAME (field_decl),
|
|
|
541 meth_var_names));
|
|
|
542 else
|
|
|
543 /* Unnamed bit-field ivar (yuck). */
|
|
|
544 CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE,
|
|
|
545 build_int_cst (NULL_TREE, 0));
|
|
|
546
|
|
|
547 /* Set type. */
|
|
|
548 id = add_objc_string (encode_field_decl (field_decl),
|
|
|
549 meth_var_types);
|
|
|
550 CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE, id);
|
|
|
551
|
|
|
552 /* Set offset. */
|
|
|
553 CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE, byte_position (field_decl));
|
|
|
554 CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE,
|
|
|
555 objc_build_constructor (type, ivar));
|
|
|
556 }
|
|
|
557
|
|
|
558 return objc_build_constructor (build_array_type (type, 0), inits);
|
|
|
559 }
|
|
|
560
|
|
|
561 /* struct {
|
|
|
562 int ivar_count;
|
|
|
563 struct objc_ivar ivar_list[ivar_count];
|
|
|
564 }; */
|
|
|
565
|
|
|
566 tree
|
|
|
567 build_ivar_list_template (tree list_type, int size)
|
|
|
568 {
|
|
|
569 tree objc_ivar_list_record;
|
|
|
570 tree array_type, decls, *chain = NULL;
|
|
|
571
|
|
|
572 objc_ivar_list_record = objc_start_struct (NULL_TREE);
|
|
|
573
|
|
|
574 /* int ivar_count; */
|
|
|
575 decls = add_field_decl (integer_type_node, "ivar_count", &chain);
|
|
|
576
|
|
|
577 /* struct objc_ivar ivar_list[]; */
|
|
|
578 array_type = build_sized_array_type (list_type, size);
|
|
|
579 add_field_decl (array_type, "ivar_list", &chain);
|
|
|
580
|
|
|
581 objc_finish_struct (objc_ivar_list_record, decls);
|
|
|
582
|
|
|
583 return objc_ivar_list_record;
|
|
|
584 }
|
|
|
585
|
|
|
586 /* struct _objc_ivar {
|
|
|
587 char *ivar_name;
|
|
|
588 char *ivar_type;
|
|
|
589 int ivar_offset;
|
|
|
590 }; */
|
|
|
591
|
|
|
592 tree
|
|
|
593 build_ivar_template (void)
|
|
|
594 {
|
|
|
595 tree objc_ivar_id, objc_ivar_record;
|
|
|
596 tree decls, *chain = NULL;
|
|
|
597
|
|
|
598 objc_ivar_id = get_identifier (UTAG_IVAR);
|
|
|
599 objc_ivar_record = objc_start_struct (objc_ivar_id);
|
|
|
600
|
|
|
601 /* char *ivar_name; */
|
|
|
602 decls = add_field_decl (string_type_node, "ivar_name", &chain);
|
|
|
603
|
|
|
604 /* char *ivar_type; */
|
|
|
605 add_field_decl (string_type_node, "ivar_type", &chain);
|
|
|
606
|
|
|
607 /* int ivar_offset; */
|
|
|
608 add_field_decl (integer_type_node, "ivar_offset", &chain);
|
|
|
609
|
|
|
610 objc_finish_struct (objc_ivar_record, decls);
|
|
|
611
|
|
|
612 return objc_ivar_record;
|
|
|
613 }
|
|
|
614
|
|
|
615 /* Used by NeXT ABI=0..2 */
|
|
|
616 void
|
|
|
617 build_next_selector_translation_table (void)
|
|
|
618 {
|
|
|
619 tree chain;
|
|
|
620 for (chain = sel_ref_chain; chain; chain = TREE_CHAIN (chain))
|
|
|
621 {
|
|
|
622 tree expr;
|
|
|
623 tree decl = TREE_PURPOSE (chain);
|
|
|
624 if (warn_selector)
|
|
|
625 {
|
|
|
626 location_t loc;
|
|
|
627 if (decl)
|
|
|
628 loc = DECL_SOURCE_LOCATION (decl);
|
|
|
629 else
|
|
|
630 loc = UNKNOWN_LOCATION;
|
|
|
631 diagnose_missing_method (TREE_VALUE (chain), loc);
|
|
|
632 }
|
|
|
633
|
|
|
634 expr = build_selector (TREE_VALUE (chain));
|
|
|
635
|
|
|
636 if (decl)
|
|
|
637 {
|
|
|
638 /* Entries of this form are used for references to methods.
|
|
|
639 The runtime re-writes these on start-up, but the compiler can't see
|
|
|
640 that and optimizes it away unless we force it. */
|
|
|
641 DECL_PRESERVE_P (decl) = 1;
|
|
|
642 finish_var_decl (decl, expr);
|
|
|
643 }
|
|
|
644 }
|
|
|
645 }
|
|
|
646
|
|
|
647 void
|
|
|
648 generate_protocol_references (tree plist)
|
|
|
649 {
|
|
|
650 tree lproto;
|
|
|
651
|
|
|
652 /* Forward declare protocols referenced. */
|
|
|
653 for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto))
|
|
|
654 {
|
|
|
655 tree proto = TREE_VALUE (lproto);
|
|
|
656
|
|
|
657 if (TREE_CODE (proto) == PROTOCOL_INTERFACE_TYPE
|
|
|
658 && PROTOCOL_NAME (proto))
|
|
|
659 {
|
|
|
660 if (! PROTOCOL_FORWARD_DECL (proto))
|
|
|
661 PROTOCOL_FORWARD_DECL (proto) = (*runtime.protocol_decl) (proto);
|
|
|
662
|
|
|
663 if (PROTOCOL_LIST (proto))
|
|
|
664 generate_protocol_references (PROTOCOL_LIST (proto));
|
|
|
665 }
|
|
|
666 }
|
|
|
667 }
|
|
|
668
|
|
|
669 /* --- new routines --- */
|
|
|
670
|
|
|
671 /* Output all strings. */
|
|
|
672
|
|
|
673 /* FIXME: don't use global vars for all this... */
|
|
|
674
|
|
|
675 /* This emits all the meta-data string tables (and finalizes each var
|
|
|
676 as it goes). */
|
|
|
677 void
|
|
|
678 generate_strings (void)
|
|
|
679 {
|
|
|
680 tree chain, string_expr;
|
|
|
681 tree string, decl; /* , type;*/
|
|
|
682
|
|
|
683 for (chain = class_names_chain; chain; chain = TREE_CHAIN (chain))
|
|
|
684 {
|
|
|
685 string = TREE_VALUE (chain);
|
|
|
686 decl = TREE_PURPOSE (chain);
|
|
|
687 string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
|
|
|
688 IDENTIFIER_POINTER (string));
|
|
|
689 finish_var_decl (decl, string_expr);
|
|
|
690 }
|
|
|
691
|
|
|
692 for (chain = meth_var_names_chain; chain; chain = TREE_CHAIN (chain))
|
|
|
693 {
|
|
|
694 string = TREE_VALUE (chain);
|
|
|
695 decl = TREE_PURPOSE (chain);
|
|
|
696 string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
|
|
|
697 IDENTIFIER_POINTER (string));
|
|
|
698 finish_var_decl (decl, string_expr);
|
|
|
699 }
|
|
|
700
|
|
|
701 for (chain = meth_var_types_chain; chain; chain = TREE_CHAIN (chain))
|
|
|
702 {
|
|
|
703 string = TREE_VALUE (chain);
|
|
|
704 decl = TREE_PURPOSE (chain);
|
|
|
705 string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
|
|
|
706 IDENTIFIER_POINTER (string));
|
|
|
707 finish_var_decl (decl, string_expr);
|
|
|
708 }
|
|
|
709
|
|
|
710 for (chain = prop_names_attr_chain; chain; chain = TREE_CHAIN (chain))
|
|
|
711 {
|
|
|
712 string = TREE_VALUE (chain);
|
|
|
713 decl = TREE_PURPOSE (chain);
|
|
|
714 string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
|
|
|
715 IDENTIFIER_POINTER (string));
|
|
|
716 finish_var_decl (decl, string_expr);
|
|
|
717 }
|
|
|
718 }
|
|
|
719
|
|
|
720 #include "gt-objc-objc-runtime-shared-support.h"
|
