// copy-relocs.h -- handle COPY relocations for gold -*- C++ -*-
-// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
+// Copyright (C) 2006-2019 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
public:
Copy_relocs(unsigned int copy_reloc_type)
- : copy_reloc_type_(copy_reloc_type), dynbss_(NULL), entries_()
+ : entries_(), copy_reloc_type_(copy_reloc_type), dynbss_(NULL),
+ dynrelro_(NULL)
{ }
// This is called while scanning relocs if we see a relocation
// will wind up. REL is the reloc itself. The Output_data_reloc
// section is where the dynamic relocs are put.
void
- copy_reloc(Symbol_table*, Layout*, Sized_symbol<size>* sym,
- Sized_relobj<size, big_endian>* object,
- unsigned int shndx, Output_section* output_section,
- const Reloc& rel,
+ copy_reloc(Symbol_table*,
+ Layout*,
+ Sized_symbol<size>* sym,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int shndx,
+ Output_section* output_section,
+ unsigned int r_type,
+ typename elfcpp::Elf_types<size>::Elf_Addr r_offset,
+ typename elfcpp::Elf_types<size>::Elf_Swxword r_addend,
Output_data_reloc<sh_type, true, size, big_endian>*);
// Return whether there are any saved relocations.
void
emit(Output_data_reloc<sh_type, true, size, big_endian>*);
- private:
+ // Emit a COPY reloc.
+ void
+ emit_copy_reloc(Symbol_table*, Sized_symbol<size>*,
+ Output_data*, off_t,
+ Output_data_reloc<sh_type, true, size, big_endian>*);
+
+ protected:
typedef typename elfcpp::Elf_types<size>::Elf_Addr Address;
typedef typename elfcpp::Elf_types<size>::Elf_Addr Addend;
// This POD class holds the relocations we are saving. We will emit
// these relocations if it turns out that the symbol does not
// require a COPY relocation.
- class Copy_reloc_entry
+ struct Copy_reloc_entry
{
- public:
Copy_reloc_entry(Symbol* sym, unsigned int reloc_type,
- Sized_relobj<size, big_endian>* relobj,
+ Sized_relobj_file<size, big_endian>* relobj,
unsigned int shndx,
Output_section* output_section,
Address address, Addend addend)
address_(address), addend_(addend)
{ }
- // Emit this reloc if appropriate. This is called after we have
- // scanned all the relocations, so we know whether we emitted a
- // COPY relocation for SYM_.
- void
- emit(Output_data_reloc<sh_type, true, size, big_endian>*);
-
- private:
Symbol* sym_;
unsigned int reloc_type_;
- Sized_relobj<size, big_endian>* relobj_;
+ Sized_relobj_file<size, big_endian>* relobj_;
unsigned int shndx_;
Output_section* output_section_;
Address address_;
Addend addend_;
};
+ // Make a new COPY reloc and emit it.
+ void
+ make_copy_reloc(Symbol_table*, Layout*, Sized_symbol<size>*,
+ Sized_relobj_file<size, big_endian>* object,
+ Output_data_reloc<sh_type, true, size, big_endian>*);
+
// A list of relocs to be saved.
typedef std::vector<Copy_reloc_entry> Copy_reloc_entries;
+ // The list of relocs we are saving.
+ Copy_reloc_entries entries_;
+
+ private:
// Return whether we need a COPY reloc.
bool
need_copy_reloc(Sized_symbol<size>* gsym,
- Sized_relobj<size, big_endian>* object,
+ Sized_relobj_file<size, big_endian>* object,
unsigned int shndx) const;
- // Emit a COPY reloc.
- void
- emit_copy_reloc(Symbol_table*, Layout*, Sized_symbol<size>*,
- Output_data_reloc<sh_type, true, size, big_endian>*);
-
- // Add a COPY reloc to the dynamic reloc section.
- void
- add_copy_reloc(Symbol*, section_size_type,
- Output_data_reloc<sh_type, true, size, big_endian>*);
-
// Save a reloc against SYM for possible emission later.
void
- save(Symbol*, Sized_relobj<size, big_endian>*, unsigned int shndx,
- Output_section*, const Reloc& rel);
+ save(Symbol*,
+ Sized_relobj_file<size, big_endian>*,
+ unsigned int shndx,
+ Output_section*,
+ unsigned int r_type,
+ typename elfcpp::Elf_types<size>::Elf_Addr r_offset,
+ typename elfcpp::Elf_types<size>::Elf_Swxword r_addend);
// The target specific relocation type of the COPY relocation.
const unsigned int copy_reloc_type_;
// The dynamic BSS data which goes into the .bss section. This is
- // where variables which require COPY relocations are placed.
+ // where writable variables which require COPY relocations are placed.
Output_data_space* dynbss_;
- // The list of relocs we are saving.
- Copy_reloc_entries entries_;
+ // The dynamic read-only data, which goes into the .data.rel.ro section.
+ // This is where read-only variables which require COPY relocations are
+ // placed.
+ Output_data_space* dynrelro_;
};
} // End namespace gold.