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PR 10450

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* layout.cc (Layout::Layout): Initialize dynamic_symbol_ field.
	(Layout::create_initial_dynamic_sections): Set dynamic_symbol_.
	(Layout::finalize): Call set_dynamic_symbol_size.
	(Layout::set_dynamic_symbol_size): New function.
	* layout.h (class Layout): Add dynamic_symbol_ field.  Declare
	set_dynamic_symbol_size.
This commit is contained in:
Ian Lance Taylor 2009-12-30 04:16:50 +00:00
parent e8cd95c71e
commit f0ba79e29c
3 changed files with 42 additions and 4 deletions
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8
gold/ChangeLog
View File

@ -1,5 +1,13 @@
2009-12-29 Ian Lance Taylor <iant@google.com>
PR 10450
* layout.cc (Layout::Layout): Initialize dynamic_symbol_ field.
(Layout::create_initial_dynamic_sections): Set dynamic_symbol_.
(Layout::finalize): Call set_dynamic_symbol_size.
(Layout::set_dynamic_symbol_size): New function.
* layout.h (class Layout): Add dynamic_symbol_ field. Declare
set_dynamic_symbol_size.
PR 10450
* output.h (class Output_section): Add is_entsize_zero_ field.
* output.cc (Output_section::Output_section): Initialize

32
gold/layout.cc
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@ -180,6 +180,7 @@ Layout::Layout(int number_of_input_files, Script_options* script_options)
dynsym_section_(NULL),
dynsym_xindex_(NULL),
dynamic_section_(NULL),
dynamic_symbol_(NULL),
dynamic_data_(NULL),
eh_frame_section_(NULL),
eh_frame_data_(NULL),
@ -1161,10 +1162,11 @@ Layout::create_initial_dynamic_sections(Symbol_table* symtab)
false, false, true);
this->dynamic_section_->set_is_relro();
symtab->define_in_output_data("_DYNAMIC", NULL, Symbol_table::PREDEFINED,
this->dynamic_section_, 0, 0,
elfcpp::STT_OBJECT, elfcpp::STB_LOCAL,
elfcpp::STV_HIDDEN, 0, false, false);
this->dynamic_symbol_ =
symtab->define_in_output_data("_DYNAMIC", NULL, Symbol_table::PREDEFINED,
this->dynamic_section_, 0, 0,
elfcpp::STT_OBJECT, elfcpp::STB_LOCAL,
elfcpp::STV_HIDDEN, 0, false, false);
this->dynamic_data_ = new Output_data_dynamic(&this->dynpool_);
@ -1580,6 +1582,10 @@ Layout::finalize(const Input_objects* input_objects, Symbol_table* symtab,
// dynamic string table is complete.
this->create_version_sections(&versions, symtab, local_dynamic_count,
dynamic_symbols, dynstr);
// Set the size of the _DYNAMIC symbol. We can't do this until
// after we call create_version_sections.
this->set_dynamic_symbol_size(symtab);
}
if (this->incremental_inputs_)
@ -3303,6 +3309,24 @@ Layout::finish_dynamic_section(const Input_objects* input_objects,
odyn->add_constant(elfcpp::DT_FLAGS_1, flags);
}
// Set the size of the _DYNAMIC symbol table to be the size of the
// dynamic data.
void
Layout::set_dynamic_symbol_size(const Symbol_table* symtab)
{
Output_data_dynamic* const odyn = this->dynamic_data_;
odyn->finalize_data_size();
off_t data_size = odyn->data_size();
const int size = parameters->target().get_size();
if (size == 32)
symtab->get_sized_symbol<32>(this->dynamic_symbol_)->set_symsize(data_size);
else if (size == 64)
symtab->get_sized_symbol<64>(this->dynamic_symbol_)->set_symsize(data_size);
else
gold_unreachable();
}
// The mapping of input section name prefixes to output section names.
// In some cases one prefix is itself a prefix of another prefix; in
// such a case the longer prefix must come first. These prefixes are

6
gold/layout.h
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@ -708,6 +708,10 @@ class Layout
void
finish_dynamic_section(const Input_objects*, const Symbol_table*);
// Set the size of the _DYNAMIC symbol.
void
set_dynamic_symbol_size(const Symbol_table*);
// Create the .interp section and PT_INTERP segment.
void
create_interp(const Target* target);
@ -947,6 +951,8 @@ class Layout
Output_symtab_xindex* dynsym_xindex_;
// The SHT_DYNAMIC output section if there is one.
Output_section* dynamic_section_;
// The _DYNAMIC symbol if there is one.
Symbol* dynamic_symbol_;
// The dynamic data which goes into dynamic_section_.
Output_data_dynamic* dynamic_data_;
// The exception frame output section if there is one.