gold/defstd.cc

   1 // defstd.cc -- define standard symbols for gold.
   2
   3 #include "gold.h"
   4
   5 #include "symtab.h"
   6 #include "defstd.h"
   7
   8 // This is a simple file which defines the standard symbols like
   9 // "_end".
  10
  11 namespace
  12 {
  13
  14 using namespace gold;
  15
  16 const Define_symbol_in_section in_section[] =
  17 {
  18   {
  19     "__preinit_array_start",    // name
  20     ".preinit_array",           // output_section
  21     0,                          // value
  22     0,                          // size
  23     elfcpp::STT_NOTYPE,         // type
  24     elfcpp::STB_GLOBAL,         // binding
  25     elfcpp::STV_HIDDEN,         // visibility
  26     0,                          // nonvis
  27     false,                      // offset_is_from_end
  28     true                        // only_if_ref
  29   },
  30   {
  31     "__preinit_array_end",      // name
  32     ".preinit_array",           // output_section
  33     0,                          // value
  34     0,                          // size
  35     elfcpp::STT_NOTYPE,         // type
  36     elfcpp::STB_GLOBAL,         // binding
  37     elfcpp::STV_HIDDEN,         // visibility
  38     0,                          // nonvis
  39     true,                       // offset_is_from_end
  40     true                        // only_if_ref
  41   },
  42   {
  43     "__init_array_start",       // name
  44     ".init_array",              // output_section
  45     0,                          // value
  46     0,                          // size
  47     elfcpp::STT_NOTYPE,         // type
  48     elfcpp::STB_GLOBAL,         // binding
  49     elfcpp::STV_HIDDEN,         // visibility
  50     0,                          // nonvis
  51     false,                      // offset_is_from_end
  52     true                        // only_if_ref
  53   },
  54   {
  55     "__init_array_end",         // name
  56     ".init_array",              // output_section
  57     0,                          // value
  58     0,                          // size
  59     elfcpp::STT_NOTYPE,         // type
  60     elfcpp::STB_GLOBAL,         // binding
  61     elfcpp::STV_HIDDEN,         // visibility
  62     0,                          // nonvis
  63     true,                       // offset_is_from_end
  64     true                        // only_if_ref
  65   },
  66   {
  67     "__fini_array_start",       // name
  68     ".fini_array",              // output_section
  69     0,                          // value
  70     0,                          // size
  71     elfcpp::STT_NOTYPE,         // type
  72     elfcpp::STB_GLOBAL,         // binding
  73     elfcpp::STV_HIDDEN,         // visibility
  74     0,                          // nonvis
  75     false,                      // offset_is_from_end
  76     true                        // only_if_ref
  77   },
  78   {
  79     "__fini_array_end",         // name
  80     ".fini_array",              // output_section
  81     0,                          // value
  82     0,                          // size
  83     elfcpp::STT_NOTYPE,         // type
  84     elfcpp::STB_GLOBAL,         // binding
  85     elfcpp::STV_HIDDEN,         // visibility
  86     0,                          // nonvis
  87     true,                       // offset_is_from_end
  88     true                        // only_if_ref
  89   }
  90 };
  91
  92 const int in_section_count = sizeof in_section / sizeof in_section[0];
  93
  94 const Define_symbol_in_segment in_segment[] =
  95 {
  96   {
  97     "_end",                     // name
  98     elfcpp::PT_LOAD,            // segment_type
  99     elfcpp::PF_W,               // segment_flags_set
 100     elfcpp::PF(0),              // segment_flags_clear
 101     0,                          // value
 102     0,                          // size
 103     elfcpp::STT_NOTYPE,         // type
 104     elfcpp::STB_GLOBAL,         // binding
 105     elfcpp::STV_DEFAULT,        // visibility
 106     0,                          // nonvis
 107     Symbol::SEGMENT_START,      // offset_from_bas
 108     false                       // only_if_ref
 109   }
 110 };
 111
 112 const int in_segment_count = sizeof in_segment / sizeof in_segment[0];
 113
 114 } // End anonymous namespace.
 115
 116 namespace gold
 117 {
 118
 119 void
 120 define_standard_symbols(Symbol_table* symtab, const Layout* layout,
 121                         Target* target)
 122 {
 123   symtab->define_symbols(layout, target, in_section_count, in_section);
 124   symtab->define_symbols(layout, target, in_segment_count, in_segment);
 125 }
 126
 127 } // End namespace gold.