X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gold%2Fdynobj.h;h=ffa76a8f769afbe5240739a0d37d50d0e1adf4f3;hb=c9dcc18f8ded97ed7cd1dd64da8c7b37b86f61bb;hp=be0d975b251235e5f6e25a90126ad387e97245f3;hpb=91d6fa6a035cc7d0b7be5c99c194a64cb80924b0;p=binutils-gdb.git diff --git a/gold/dynobj.h b/gold/dynobj.h index be0d975b251..ffa76a8f769 100644 --- a/gold/dynobj.h +++ b/gold/dynobj.h @@ -1,6 +1,6 @@ // dynobj.h -- dynamic object support for gold -*- C++ -*- -// Copyright 2006, 2007, 2008 Free Software Foundation, Inc. +// Copyright (C) 2006-2021 Free Software Foundation, Inc. // Written by Ian Lance Taylor . // This file is part of gold. @@ -72,6 +72,16 @@ class Dynobj : public Object this->unknown_needed_ = set ? UNKNOWN_NEEDED_TRUE : UNKNOWN_NEEDED_FALSE; } + // Return the word size of the object file. + int + elfsize() const + { gold_unreachable(); } + + // Return TRUE if this is a big-endian object file. + bool + is_big_endian() const + { gold_unreachable(); } + // Compute the ELF hash code for a string. static uint32_t elf_hash(const char*); @@ -96,6 +106,11 @@ class Dynobj : public Object unsigned char** pphash, unsigned int* phashlen); protected: + // Return a pointer to this object. + virtual Dynobj* + do_dynobj() + { return this; } + // Set the DT_SONAME string. void set_soname_string(const char* s) @@ -117,7 +132,7 @@ class Dynobj : public Object bool for_gnu_hash_table); // Sized version of create_elf_hash_table. - template + template static void sized_create_elf_hash_table(const std::vector& bucket, const std::vector& chain, @@ -156,7 +171,7 @@ template class Sized_dynobj : public Dynobj { public: - typedef typename Sized_relobj::Symbols Symbols; + typedef typename Sized_relobj_file::Symbols Symbols; Sized_dynobj(const std::string& name, Input_file* input_file, off_t offset, const typename elfcpp::Ehdr&); @@ -177,6 +192,20 @@ class Sized_dynobj : public Dynobj void do_add_symbols(Symbol_table*, Read_symbols_data*, Layout*); + Archive::Should_include + do_should_include_member(Symbol_table* symtab, Layout*, Read_symbols_data*, + std::string* why); + + // Iterate over global symbols, calling a visitor class V for each. + void + do_for_all_global_symbols(Read_symbols_data* sd, + Library_base::Symbol_visitor_base* v); + + // Iterate over local symbols, calling a visitor class V for each GOT offset + // associated with a local symbol. + void + do_for_all_local_got_entries(Got_offset_list::Visitor* v) const; + // Get the size of a section. uint64_t do_section_size(unsigned int shndx) @@ -184,14 +213,24 @@ class Sized_dynobj : public Dynobj // Get the name of a section. std::string - do_section_name(unsigned int shndx) + do_section_name(unsigned int shndx) const { return this->elf_file_.section_name(shndx); } // Return a view of the contents of a section. Set *PLEN to the // size. - Object::Location - do_section_contents(unsigned int shndx) - { return this->elf_file_.section_contents(shndx); } + const unsigned char* + do_section_contents(unsigned int shndx, section_size_type* plen, + bool cache) + { + Location loc(this->elf_file_.section_contents(shndx)); + *plen = convert_to_section_size_type(loc.data_size); + if (*plen == 0) + { + static const unsigned char empty[1] = { '\0' }; + return empty; + } + return this->get_view(loc.file_offset, *plen, true, cache); + } // Return section flags. uint64_t @@ -236,6 +275,17 @@ class Sized_dynobj : public Dynobj void do_get_global_symbol_counts(const Symbol_table*, size_t*, size_t*) const; + // Get the global symbols. + const Symbols* + do_get_global_symbols() const + { return this->symbols_; } + + protected: + // Read the symbols. This is common code for all target-specific + // overrides of do_read_symbols(). + void + base_read_symbols(Read_symbols_data*); + private: // For convenience. typedef Sized_dynobj This; @@ -330,10 +380,10 @@ class Version_base // Set the version index. void - set_index(unsigned int vindex) + set_index(unsigned int index) { gold_assert(this->index_ == -1U); - this->index_ = vindex; + this->index_ = index; } // Clear the weak flag in a version definition. @@ -354,10 +404,10 @@ class Version_base class Verdef : public Version_base { public: - Verdef(const char* vname, const std::vector& deps, - bool is_base, bool vis_weak, bool vis_symbol_created) - : name_(vname), deps_(deps), is_base_(is_base), is_weak_(vis_weak), - is_symbol_created_(vis_symbol_created) + Verdef(const char* name, const std::vector& deps, + bool is_base, bool is_weak, bool is_info, bool is_symbol_created) + : name_(name), deps_(deps), is_base_(is_base), is_weak_(is_weak), + is_info_(is_info), is_symbol_created_(is_symbol_created) { } // Return the version name. @@ -373,8 +423,8 @@ class Verdef : public Version_base // Add a dependency to this version. The NAME should be // canonicalized in the dynamic Stringpool. void - add_dependency(const char* dname) - { this->deps_.push_back(dname); } + add_dependency(const char* name) + { this->deps_.push_back(name); } // Return whether this definition is weak. bool @@ -386,6 +436,11 @@ class Verdef : public Version_base clear_weak() { this->is_weak_ = false; } + // Return whether this definition is informational. + bool + is_info() const + { return this->is_info_; } + // Return whether a version symbol has been created for this // definition. bool @@ -414,6 +469,8 @@ class Verdef : public Version_base bool is_base_; // Whether this version is weak. bool is_weak_; + // Whether this version is informational. + bool is_info_; // Whether a version symbol has been created. bool is_symbol_created_; }; @@ -424,8 +481,8 @@ class Verdef : public Version_base class Verneed_version : public Version_base { public: - Verneed_version(const char* ver) - : version_(ver) + Verneed_version(const char* version) + : version_(version) { } // Return the version name. @@ -450,8 +507,8 @@ class Verneed_version : public Version_base class Verneed { public: - Verneed(const char* fname) - : filename_(fname), need_versions_() + Verneed(const char* filename) + : filename_(filename), need_versions_() { } ~Verneed(); @@ -568,7 +625,8 @@ class Versions // Handle a symbol SYM defined with version VERSION. void - add_def(const Symbol* sym, const char* version, Stringpool::Key); + add_def(Stringpool*, const Symbol* sym, const char* version, + Stringpool::Key); // Add a reference to version NAME in file FILENAME. void @@ -621,7 +679,7 @@ class Versions // Contents of --version-script, if passed, or NULL. const Version_script_info& version_script_; // Whether we need to insert a base version. This is only used for - // shared libaries and is cleared when the base version is defined. + // shared libraries and is cleared when the base version is defined. bool needs_base_version_; };