// layout.h -- lay out output file sections for gold -*- C++ -*-
-// Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012
-// Free Software Foundation, Inc.
+// Copyright (C) 2006-2016 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
extern bool
is_compressed_debug_section(const char* secname);
+// Return the name of the corresponding uncompressed debug section.
+extern std::string
+corresponding_uncompressed_section_name(std::string secname);
+
// Maintain a list of free space within a section, segment, or file.
// Used for incremental update links.
// Maps section SECN to SEGMENT s.
void
insert_section_segment_map(Const_section_id secn, Unique_segment_info *s);
-
+
+ // Some input sections require special ordering, for compatibility
+ // with GNU ld. Given the name of an input section, return -1 if it
+ // does not require special ordering. Otherwise, return the index
+ // by which it should be ordered compared to other input sections
+ // that require special ordering.
+ static int
+ special_ordering_of_input_section(const char* name);
+
bool
is_section_ordering_specified()
{ return this->section_ordering_specified_; }
unsigned int reloc_shndx, unsigned int reloc_type,
off_t* offset);
+ // After processing all input files, we call this to make sure that
+ // the optimized .eh_frame sections have been added to the output
+ // section.
+ void
+ finalize_eh_frame_section();
+
// Add .eh_frame information for a PLT. The FDE must start with a
// 4-byte PC-relative reference to the start of the PLT, followed by
// a 4-byte size of PLT.
|| strncmp(name, ".gnu.linkonce.wi.",
sizeof(".gnu.linkonce.wi.") - 1) == 0
|| strncmp(name, ".line", sizeof(".line") - 1) == 0
- || strncmp(name, ".stab", sizeof(".stab") - 1) == 0);
+ || strncmp(name, ".stab", sizeof(".stab") - 1) == 0
+ || strncmp(name, ".pdr", sizeof(".pdr") - 1) == 0);
}
// Return true if RELOBJ is an input file whose base name matches
// Compute and write out the build ID if needed.
void
- write_build_id(Output_file*) const;
+ write_build_id(Output_file*, unsigned char*, size_t) const;
// Rewrite output file in binary format.
void
// be mapped to an output section that should be KEPT.
bool
keep_input_section(const Relobj*, const char*);
-
+
+ // Add a special output object that will be recreated afresh
+ // if there is another relaxation iteration.
+ void
+ add_relax_output(Output_data* data)
+ { this->relax_output_list_.push_back(data); }
+
+ // Clear out (and free) everything added by add_relax_output.
+ void
+ reset_relax_output();
+
private:
Layout(const Layout&);
Layout& operator=(const Layout&);
// Check that sections and special data are in reset states.
void
check_output_data_for_reset_values(const Layout::Section_list&,
- const Layout::Data_list&);
+ const Layout::Data_list& special_outputs,
+ const Layout::Data_list& relax_outputs);
// Record information of a section list.
void
// The list of unattached Output_data objects which require special
// handling because they are not Output_sections.
Data_list special_output_list_;
+ // Like special_output_list_, but cleared and recreated on each
+ // iteration of relaxation.
+ Data_list relax_output_list_;
// The section headers.
Output_section_headers* section_headers_;
// A pointer to the PT_TLS segment if there is one.
public:
Write_sections_task(const Layout* layout, Output_file* of,
Task_token* output_sections_blocker,
+ Task_token* input_sections_blocker,
Task_token* final_blocker)
: layout_(layout), of_(of),
output_sections_blocker_(output_sections_blocker),
+ input_sections_blocker_(input_sections_blocker),
final_blocker_(final_blocker)
{ }
const Layout* layout_;
Output_file* of_;
Task_token* output_sections_blocker_;
+ Task_token* input_sections_blocker_;
Task_token* final_blocker_;
};
{
public:
Write_symbols_task(const Layout* layout, const Symbol_table* symtab,
- const Input_objects* input_objects,
+ const Input_objects* /*input_objects*/,
const Stringpool* sympool, const Stringpool* dynpool,
Output_file* of, Task_token* final_blocker)
- : layout_(layout), symtab_(symtab), input_objects_(input_objects),
+ : layout_(layout), symtab_(symtab),
sympool_(sympool), dynpool_(dynpool), of_(of),
final_blocker_(final_blocker)
{ }
private:
const Layout* layout_;
const Symbol_table* symtab_;
- const Input_objects* input_objects_;
const Stringpool* sympool_;
const Stringpool* dynpool_;
Output_file* of_;
Task_token* final_blocker_;
};
+// This task function handles computation of the build id.
+// When using --build-id=tree, it schedules the tasks that
+// compute the hashes for each chunk of the file. This task
+// cannot run until we have finalized the size of the output
+// file, after the completion of Write_after_input_sections_task.
+
+class Build_id_task_runner : public Task_function_runner
+{
+ public:
+ Build_id_task_runner(const General_options* options, const Layout* layout,
+ Output_file* of)
+ : options_(options), layout_(layout), of_(of)
+ { }
+
+ // Run the operation.
+ void
+ run(Workqueue*, const Task*);
+
+ private:
+ const General_options* options_;
+ const Layout* layout_;
+ Output_file* of_;
+};
+
// This task function handles closing the file.
class Close_task_runner : public Task_function_runner
{
public:
Close_task_runner(const General_options* options, const Layout* layout,
- Output_file* of)
- : options_(options), layout_(layout), of_(of)
+ Output_file* of, unsigned char* array_of_hashes,
+ size_t size_of_hashes)
+ : options_(options), layout_(layout), of_(of),
+ array_of_hashes_(array_of_hashes), size_of_hashes_(size_of_hashes)
{ }
// Run the operation.
const General_options* options_;
const Layout* layout_;
Output_file* of_;
+ unsigned char* const array_of_hashes_;
+ const size_t size_of_hashes_;
};
// A small helper function to align an address.
projects / deliverable / binutils-gdb.git / blobdiff