class Output_file_header;
class Output_segment;
class Output_data;
+class Output_data_reloc_generic;
class Output_data_dynamic;
class Output_symtab_xindex;
class Output_reduced_debug_abbrev_section;
class Eh_frame;
class Target;
+// Return TRUE if SECNAME is the name of a compressed debug section.
+extern bool
+is_compressed_debug_section(const char* secname);
+
// This task function handles mapping the input sections to output
// sections and laying them out in memory.
const char* name, const elfcpp::Shdr<size, big_endian>& shdr,
unsigned int reloc_shndx, unsigned int reloc_type, off_t* offset);
+ unsigned int
+ find_section_order_index(const std::string&);
+
+ void
+ read_layout_from_file();
+
// Layout an input reloc section when doing a relocatable link. The
// section is RELOC_SHNDX in OBJECT, with data in SHDR.
// DATA_SECTION is the reloc section to which it refers. RR is the
layout_gnu_stack(bool seen_gnu_stack, uint64_t gnu_stack_flags);
// Add an Output_section_data to the layout. This is used for
- // special sections like the GOT section.
+ // special sections like the GOT section. IS_DYNAMIC_LINKER_SECTION
+ // is true for sections which are used by the dynamic linker, such
+ // as dynamic reloc sections. IS_RELRO is true for relro sections.
+ // IS_LAST_RELRO is true for the last relro section.
+ // IS_FIRST_NON_RELRO is true for the first section after the relro
+ // sections.
Output_section*
add_output_section_data(const char* name, elfcpp::Elf_Word type,
elfcpp::Elf_Xword flags,
- Output_section_data*);
+ Output_section_data*, bool is_dynamic_linker_section,
+ bool is_relro, bool is_last_relro,
+ bool is_first_non_relro);
+
+ // Increase the size of the relro segment by this much.
+ void
+ increase_relro(unsigned int s)
+ { this->increase_relro_ += s; }
// Create dynamic sections if necessary.
void
is_linkonce(const char* name)
{ return strncmp(name, ".gnu.linkonce", sizeof(".gnu.linkonce") - 1) == 0; }
+ // Whether we have added an input section.
+ bool
+ have_added_input_section() const
+ { return this->have_added_input_section_; }
+
// Return true if a section is a debugging section.
static inline bool
is_debug_info_section(const char* name)
{
// Debugging sections can only be recognized by name.
return (strncmp(name, ".debug", sizeof(".debug") - 1) == 0
+ || strncmp(name, ".zdebug", sizeof(".zdebug") - 1) == 0
|| strncmp(name, ".gnu.linkonce.wi.",
sizeof(".gnu.linkonce.wi.") - 1) == 0
|| strncmp(name, ".line", sizeof(".line") - 1) == 0
incremental_inputs()
{ return this->incremental_inputs_; }
+ // For the target-specific code to add dynamic tags which are common
+ // to most targets.
+ void
+ add_target_dynamic_tags(bool use_rel, const Output_data* plt_got,
+ const Output_data* plt_rel,
+ const Output_data_reloc_generic* dyn_rel,
+ bool add_debug, bool dynrel_includes_plt);
+
// Compute and write out the build ID if needed.
void
write_build_id(Output_file*) const;
// Make a section for a linker script to hold data.
Output_section*
- make_output_section_for_script(const char* name);
+ make_output_section_for_script(const char* name,
+ Script_sections::Section_type section_type);
// Make a segment. This is used by the linker script code.
Output_segment*
this->script_output_section_data_list_.push_back(posd);
}
+ // Return section list.
+ const Section_list&
+ section_list() const
+ { return this->section_list_; }
+
private:
Layout(const Layout&);
Layout& operator=(const 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);
// Return the output section for NAME, TYPE and FLAGS.
Output_section*
get_output_section(const char* name, Stringpool::Key name_key,
- elfcpp::Elf_Word type, elfcpp::Elf_Xword flags);
+ elfcpp::Elf_Word type, elfcpp::Elf_Xword flags,
+ bool is_interp, bool is_dynamic_linker_section,
+ bool is_relro, bool is_last_relro,
+ bool is_first_non_relro);
// Choose the output section for NAME in RELOBJ.
Output_section*
choose_output_section(const Relobj* relobj, const char* name,
elfcpp::Elf_Word type, elfcpp::Elf_Xword flags,
- bool is_input_section);
+ bool is_input_section, bool is_interp,
+ bool is_dynamic_linker_section, bool is_relro,
+ bool is_last_relro, bool is_first_non_relro);
// Create a new Output_section.
Output_section*
make_output_section(const char* name, elfcpp::Elf_Word type,
- elfcpp::Elf_Xword flags);
+ elfcpp::Elf_Xword flags, bool is_interp,
+ bool is_dynamic_linker_section, bool is_relro,
+ bool is_last_relro, bool is_first_non_relro);
// Attach a section to a segment.
void
Output_segment* tls_segment_;
// A pointer to the PT_GNU_RELRO segment if there is one.
Output_segment* relro_segment_;
+ // A backend may increase the size of the PT_GNU_RELRO segment if
+ // there is one. This is the amount to increase it by.
+ unsigned int increase_relro_;
// The SHT_SYMTAB output section.
Output_section* symtab_section_;
// The SHT_SYMTAB_SHNDX for the regular symbol table if there is one.
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.
Group_signatures group_signatures_;
// The size of the output file.
off_t output_file_size_;
+ // Whether we have added an input section to an output section.
+ bool have_added_input_section_;
// Whether we have attached the sections to the segments.
bool sections_are_attached_;
// Whether we have seen an object file marked to require an
Segment_states* segment_states_;
// A relaxation debug checker. We only create one when in debugging mode.
Relaxation_debug_check* relaxation_debug_check_;
+ // Hash a pattern to its position in the section ordering file.
+ Unordered_map<std::string, unsigned int> input_section_position_;
+ // Vector of glob only patterns in the section_ordering file.
+ std::vector<std::string> input_section_glob_;
};
// This task handles writing out data in output sections which is not
projects / binutils-gdb.git / blobdiff