diff options
Diffstat (limited to 'binutils-2.22/gold/incremental.h')
| -rw-r--r-- | binutils-2.22/gold/incremental.h | 85 |
1 files changed, 64 insertions, 21 deletions
diff --git a/binutils-2.22/gold/incremental.h b/binutils-2.22/gold/incremental.h index e6732df..20ae772 100644 --- a/binutils-2.22/gold/incremental.h +++ b/binutils-2.22/gold/incremental.h @@ -1,6 +1,6 @@ // inremental.h -- incremental linking support for gold -*- C++ -*- -// Copyright 2009, 2010 Free Software Foundation, Inc. +// Copyright 2009, 2010, 2011 Free Software Foundation, Inc. // Written by Mikolaj Zalewski <mikolajz@google.com>. // This file is part of gold. @@ -758,6 +758,23 @@ class Incremental_inputs_reader typedef elfcpp::Swap<64, big_endian> Swap64; public: + // Size of the .gnu_incremental_inputs header. + // (3 x 4-byte fields, plus 4 bytes padding.) + static const unsigned int header_size = 16; + // Size of an input file entry. + // (2 x 4-byte fields, 1 x 12-byte field, 2 x 2-byte fields.) + static const unsigned int input_entry_size = 24; + // Size of the first part of the supplemental info block for + // relocatable objects and archive members. + // (7 x 4-byte fields, plus 4 bytes padding.) + static const unsigned int object_info_size = 32; + // Size of an input section entry. + // (2 x 4-byte fields, 2 x address-sized fields.) + static const unsigned int input_section_entry_size = 8 + 2 * size / 8; + // Size of a global symbol entry in the supplemental info block. + // (5 x 4-byte fields.) + static const unsigned int global_sym_entry_size = 20; + Incremental_inputs_reader() : p_(NULL), strtab_(NULL, 0), input_file_count_(0) { } @@ -788,6 +805,14 @@ class Incremental_inputs_reader // Reader class for an input file entry and its supplemental info. class Incremental_input_entry_reader { + private: + static const unsigned int object_info_size = + Incremental_inputs_reader<size, big_endian>::object_info_size; + static const unsigned int input_section_entry_size = + Incremental_inputs_reader<size, big_endian>::input_section_entry_size; + static const unsigned int global_sym_entry_size = + Incremental_inputs_reader<size, big_endian>::global_sym_entry_size; + public: Incremental_input_entry_reader(const Incremental_inputs_reader* inputs, unsigned int offset) @@ -866,9 +891,10 @@ class Incremental_inputs_reader || this->type() == INCREMENTAL_INPUT_ARCHIVE_MEMBER); unsigned int section_count = this->get_input_section_count(); - return (this->info_offset_ + 28 - + section_count * input_section_entry_size - + symndx * 20); + return (this->info_offset_ + + this->object_info_size + + section_count * this->input_section_entry_size + + symndx * this->global_sym_entry_size); } // Return the global symbol count -- for objects & shared libraries only. @@ -1001,8 +1027,9 @@ class Incremental_inputs_reader { Input_section_info info; const unsigned char* p = (this->inputs_->p_ - + this->info_offset_ + 28 - + n * input_section_entry_size); + + this->info_offset_ + + this->object_info_size + + n * this->input_section_entry_size); unsigned int name_offset = Swap32::readval(p); info.name = this->inputs_->get_string(name_offset); info.output_shndx = Swap32::readval(p + 4); @@ -1019,9 +1046,10 @@ class Incremental_inputs_reader || this->type() == INCREMENTAL_INPUT_ARCHIVE_MEMBER); unsigned int section_count = this->get_input_section_count(); const unsigned char* p = (this->inputs_->p_ - + this->info_offset_ + 28 - + section_count * input_section_entry_size - + n * 20); + + this->info_offset_ + + this->object_info_size + + section_count * this->input_section_entry_size + + n * this->global_sym_entry_size); return Incremental_global_symbol_reader<big_endian>(p); } @@ -1032,9 +1060,10 @@ class Incremental_inputs_reader unsigned int section_count = this->get_input_section_count(); unsigned int symbol_count = this->get_global_symbol_count(); const unsigned char* p = (this->inputs_->p_ - + this->info_offset_ + 28 - + section_count * input_section_entry_size - + symbol_count * 20 + + this->info_offset_ + + this->object_info_size + + section_count * this->input_section_entry_size + + symbol_count * this->global_sym_entry_size + n * 4); unsigned int name_offset = Swap32::readval(p); return this->inputs_->get_string(name_offset); @@ -1072,8 +1101,6 @@ class Incremental_inputs_reader } private: - // Size of an input section entry. - static const unsigned int input_section_entry_size = 8 + 2 * size / 8; // The reader instance for the containing section. const Incremental_inputs_reader* inputs_; // The flags, including the type of input file. @@ -1089,14 +1116,14 @@ class Incremental_inputs_reader input_file_offset(unsigned int n) const { gold_assert(n < this->input_file_count_); - return 16 + n * 24; + return this->header_size + n * this->input_entry_size; } // Return the index of an input file entry given its OFFSET. unsigned int input_file_index(unsigned int offset) const { - int n = (offset - 16) / 24; + int n = ((offset - this->header_size) / this->input_entry_size); gold_assert(input_file_offset(n) == offset); return n; } @@ -1110,7 +1137,8 @@ class Incremental_inputs_reader Incremental_input_entry_reader input_file_at_offset(unsigned int offset) const { - gold_assert(offset < 16 + this->input_file_count_ * 24); + gold_assert(offset < (this->header_size + + this->input_file_count_ * this->input_entry_size)); return Incremental_input_entry_reader(this, offset); } @@ -1880,8 +1908,9 @@ class Sized_relobj_incr : public Sized_relobj<size, big_endian> do_section_name(unsigned int shndx); // Return a view of the contents of a section. - Object::Location - do_section_contents(unsigned int shndx); + const unsigned char* + do_section_contents(unsigned int shndx, section_size_type* plen, + bool cache); // Return section flags. uint64_t @@ -1924,6 +1953,15 @@ class Sized_relobj_incr : public Sized_relobj<size, big_endian> do_get_global_symbols() const { return &this->symbols_; } + // Return the value of a local symbol. + uint64_t + do_local_symbol_value(unsigned int, uint64_t) const + { gold_unreachable(); } + + unsigned int + do_local_plt_offset(unsigned int) const + { gold_unreachable(); } + // Return the number of local symbols. unsigned int do_local_symbol_count() const @@ -1996,6 +2034,8 @@ class Sized_relobj_incr : public Sized_relobj<size, big_endian> unsigned int local_dynsym_offset_; // The entries in the symbol table for the external symbols. Symbols symbols_; + // Number of symbols defined in object file itself. + size_t defined_count_; // The offset of the first incremental relocation for this object. unsigned int incr_reloc_offset_; // The number of incremental relocations for this object. @@ -2075,8 +2115,9 @@ class Sized_incr_dynobj : public Dynobj do_section_name(unsigned int shndx); // Return a view of the contents of a section. - Object::Location - do_section_contents(unsigned int shndx); + const unsigned char* + do_section_contents(unsigned int shndx, section_size_type* plen, + bool cache); // Return section flags. uint64_t @@ -2127,6 +2168,8 @@ class Sized_incr_dynobj : public Dynobj Input_entry_reader input_reader_; // The entries in the symbol table for the external symbols. Symbols symbols_; + // Number of symbols defined in object file itself. + size_t defined_count_; }; // Allocate an incremental object of the appropriate size and endianness. |