239 lines
6 KiB
C++
239 lines
6 KiB
C++
// defstd.cc -- define standard symbols for gold.
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#include "gold.h"
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#include "symtab.h"
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#include "defstd.h"
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// This is a simple file which defines the standard symbols like
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// "_end".
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namespace
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{
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using namespace gold;
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const Define_symbol_in_section in_section[] =
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{
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{
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"__preinit_array_start", // name
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".preinit_array", // output_section
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_HIDDEN, // visibility
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0, // nonvis
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false, // offset_is_from_end
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true // only_if_ref
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},
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{
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"__preinit_array_end", // name
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".preinit_array", // output_section
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_HIDDEN, // visibility
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0, // nonvis
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true, // offset_is_from_end
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true // only_if_ref
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},
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{
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"__init_array_start", // name
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".init_array", // output_section
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_HIDDEN, // visibility
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0, // nonvis
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false, // offset_is_from_end
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true // only_if_ref
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},
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{
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"__init_array_end", // name
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".init_array", // output_section
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_HIDDEN, // visibility
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0, // nonvis
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true, // offset_is_from_end
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true // only_if_ref
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},
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{
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"__fini_array_start", // name
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".fini_array", // output_section
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_HIDDEN, // visibility
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0, // nonvis
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false, // offset_is_from_end
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true // only_if_ref
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},
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{
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"__fini_array_end", // name
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".fini_array", // output_section
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_HIDDEN, // visibility
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0, // nonvis
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true, // offset_is_from_end
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true // only_if_ref
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}
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};
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const int in_section_count = sizeof in_section / sizeof in_section[0];
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const Define_symbol_in_segment in_segment[] =
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{
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{
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"__executable_start", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF(0), // segment_flags_set
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elfcpp::PF(0), // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_START, // offset_from_base
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true // only_if_ref
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},
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{
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"etext", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF_X, // segment_flags_set
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elfcpp::PF_W, // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_END, // offset_from_base
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true // only_if_ref
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},
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{
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"_etext", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF_X, // segment_flags_set
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elfcpp::PF_W, // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_END, // offset_from_base
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true // only_if_ref
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},
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{
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"__etext", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF_X, // segment_flags_set
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elfcpp::PF_W, // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_END, // offset_from_base
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true // only_if_ref
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},
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{
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"_edata", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF_X, // segment_flags_set
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elfcpp::PF(0), // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_BSS, // offset_from_base
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false // only_if_ref
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},
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{
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"edata", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF_X, // segment_flags_set
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elfcpp::PF(0), // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_BSS, // offset_from_base
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true // only_if_ref
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},
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{
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"__bss_start", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF_X, // segment_flags_set
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elfcpp::PF(0), // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_BSS, // offset_from_base
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false // only_if_ref
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},
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{
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"_end", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF_X, // segment_flags_set
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elfcpp::PF(0), // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_START, // offset_from_base
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false // only_if_ref
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},
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{
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"end", // name
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elfcpp::PT_LOAD, // segment_type
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elfcpp::PF_X, // segment_flags_set
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elfcpp::PF(0), // segment_flags_clear
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0, // value
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0, // size
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elfcpp::STT_NOTYPE, // type
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elfcpp::STB_GLOBAL, // binding
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elfcpp::STV_DEFAULT, // visibility
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0, // nonvis
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Symbol::SEGMENT_START, // offset_from_base
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false // only_if_ref
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}
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};
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const int in_segment_count = sizeof in_segment / sizeof in_segment[0];
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} // End anonymous namespace.
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namespace gold
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{
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void
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define_standard_symbols(Symbol_table* symtab, const Layout* layout,
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Target* target)
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{
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symtab->define_symbols(layout, target, in_section_count, in_section);
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symtab->define_symbols(layout, target, in_segment_count, in_segment);
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}
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} // End namespace gold.
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