2006-08-19 00:29:20 +02:00
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// stringpool.cc -- a string pool for gold
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2017-01-02 04:36:43 +01:00
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// Copyright (C) 2006-2017 Free Software Foundation, Inc.
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2007-09-22 23:02:10 +02:00
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// Written by Ian Lance Taylor <iant@google.com>.
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// This file is part of gold.
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// MA 02110-1301, USA.
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2006-08-19 00:29:20 +02:00
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#include "gold.h"
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#include <cstring>
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2006-09-29 21:58:17 +02:00
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#include <algorithm>
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#include <vector>
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2006-08-19 00:29:20 +02:00
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2006-09-29 21:58:17 +02:00
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#include "output.h"
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2007-09-21 17:54:07 +02:00
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#include "parameters.h"
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2006-08-19 00:29:20 +02:00
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#include "stringpool.h"
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namespace gold
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{
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2007-05-16 19:42:48 +02:00
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template<typename Stringpool_char>
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2013-04-29 19:15:09 +02:00
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Stringpool_template<Stringpool_char>::Stringpool_template(uint64_t addralign)
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2007-12-19 02:23:46 +01:00
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: string_set_(), key_to_offset_(), strings_(), strtab_size_(0),
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2013-04-29 19:15:09 +02:00
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zero_null_(true), optimize_(false), offset_(sizeof(Stringpool_char)),
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addralign_(addralign)
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2006-08-19 00:29:20 +02:00
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{
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2015-03-22 05:09:46 +01:00
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if (parameters->options_valid()
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&& parameters->options().optimize() >= 2
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&& addralign <= sizeof(Stringpool_char))
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2009-06-23 09:04:10 +02:00
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this->optimize_ = true;
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2006-08-19 00:29:20 +02:00
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}
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2007-05-16 19:42:48 +02:00
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template<typename Stringpool_char>
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2007-11-30 01:35:27 +01:00
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void
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Stringpool_template<Stringpool_char>::clear()
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2006-08-19 00:29:20 +02:00
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{
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2007-05-16 19:42:48 +02:00
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for (typename std::list<Stringdata*>::iterator p = this->strings_.begin();
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2006-08-19 00:29:20 +02:00
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p != this->strings_.end();
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++p)
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delete[] reinterpret_cast<char*>(*p);
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2007-11-30 01:35:27 +01:00
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this->strings_.clear();
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2007-12-19 02:23:46 +01:00
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this->key_to_offset_.clear();
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2007-11-30 01:35:27 +01:00
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this->string_set_.clear();
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}
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template<typename Stringpool_char>
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Stringpool_template<Stringpool_char>::~Stringpool_template()
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{
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this->clear();
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2006-08-19 00:29:20 +02:00
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}
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2007-12-14 06:24:17 +01:00
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// Resize the internal hashtable with the expectation we'll get n new
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// elements. Note that the hashtable constructor takes a "number of
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// buckets you'd like," rather than "number of elements you'd like,"
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// but that's the best we can do.
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template<typename Stringpool_char>
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void
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Stringpool_template<Stringpool_char>::reserve(unsigned int n)
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{
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2007-12-19 02:23:46 +01:00
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this->key_to_offset_.reserve(n);
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2013-12-20 06:54:43 +01:00
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#if defined(HAVE_UNORDERED_MAP)
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this->string_set_.rehash(this->string_set_.size() + n);
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return;
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#elif defined(HAVE_TR1_UNORDERED_MAP)
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2007-12-14 06:24:17 +01:00
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// rehash() implementation is broken in gcc 4.0.3's stl
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//this->string_set_.rehash(this->string_set_.size() + n);
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//return;
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#elif defined(HAVE_EXT_HASH_MAP)
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this->string_set_.resize(this->string_set_.size() + n);
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return;
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#endif
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// This is the generic "reserve" code, if no #ifdef above triggers.
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String_set_type new_string_set(this->string_set_.size() + n);
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new_string_set.insert(this->string_set_.begin(), this->string_set_.end());
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this->string_set_.swap(new_string_set);
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}
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2007-12-05 23:56:51 +01:00
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// Compare two strings of arbitrary character type for equality.
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2007-05-16 19:42:48 +02:00
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template<typename Stringpool_char>
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bool
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2007-12-05 23:56:51 +01:00
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Stringpool_template<Stringpool_char>::string_equal(const Stringpool_char* s1,
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const Stringpool_char* s2)
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2007-05-16 19:42:48 +02:00
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{
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while (*s1 != 0)
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if (*s1++ != *s2++)
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return false;
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return *s2 == 0;
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}
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2007-12-05 23:56:51 +01:00
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// Specialize string_equal for char.
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2007-05-16 19:42:48 +02:00
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template<>
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2007-12-05 23:56:51 +01:00
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inline bool
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Stringpool_template<char>::string_equal(const char* s1, const char* s2)
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2007-05-16 19:42:48 +02:00
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{
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return strcmp(s1, s2) == 0;
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}
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2007-12-05 23:56:51 +01:00
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// Equality comparison function for the hash table.
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template<typename Stringpool_char>
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inline bool
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Stringpool_template<Stringpool_char>::Stringpool_eq::operator()(
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const Hashkey& h1,
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const Hashkey& h2) const
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{
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return (h1.hash_code == h2.hash_code
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&& h1.length == h2.length
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2007-12-19 01:29:28 +01:00
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&& (h1.string == h2.string
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|| memcmp(h1.string, h2.string,
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h1.length * sizeof(Stringpool_char)) == 0));
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2007-12-05 23:56:51 +01:00
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}
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// Hash function. The length is in characters, not bytes.
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2006-08-19 00:29:20 +02:00
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2007-05-16 19:42:48 +02:00
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template<typename Stringpool_char>
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2006-08-19 00:29:20 +02:00
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size_t
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2007-12-05 23:56:51 +01:00
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Stringpool_template<Stringpool_char>::string_hash(const Stringpool_char* s,
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size_t length)
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2006-08-19 00:29:20 +02:00
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{
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2009-10-21 Doug Kwan <dougkwan@google.com>
* arm.cc: Update copyright comments.
(Target_arm): New forward class template declaration.
(Arm_address): New type.
(ARM_MAX_FWD_BRANCH_OFFSET, ARM_MAX_BWD_BRANCH_OFFSET,
THM_MAX_FWD_BRANCH_OFFSET, THM_MAX_BWD_BRANCH_OFFSET,
THM2_MAX_FWD_BRANCH_OFFSET, THM2_MAX_BWD_BRANCH_OFFSET): New
constants.
(Insn_template): Same.
(DEF_STUBS): New macro.
(Stub_type): New enum type.
(Stub_template): New class definition.
(Stub): Same.
(Reloc_stub): Same.
(Stub_factory): Same.
(Target_arm::Target_arm): Initialize may_use_blx_ and
should_force_pic_veneer_.
(Target_arm::may_use_blx, Target_arm::set_may_use_blx,
Target_arm::should_force_pic_veneer,
Target_arm::set_should_force_pic_veneer, Target_arm::using_thumb2,
Target_arm::using_thumb_only, Target_arm:;default_target): New
method defintions.
(Target_arm::may_use_blx_, Target_arm::should_force_pic_veneer_):
New data member declarations.
(Insn_template::size, Insn_template::alignment): New method defintions.
(Stub_template::Stub_template): New method definition.
(Reloc_stub::Key::name, Reloc_stub::stub_type_for_reloc,
Reloc_stub::do_fixed_endian_write, Reloc_stub::do_write): Same.
(Stub_factory::Stub_factory): New method definition.
* gold.h (string_hash): New template.
* output.h (Input_section_specifier::hash_value): Use
gold::string_hash.
(Input_section_specifier::string_hash): Remove.
* stringpool.cc (Stringpool_template::string_hash): Use
gold::string_hash.
2009-10-21 10:08:41 +02:00
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return gold::string_hash<Stringpool_char>(s, length);
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2006-08-19 00:29:20 +02:00
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}
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2007-12-05 23:56:51 +01:00
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// Add the string S to the list of canonical strings. Return a
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// pointer to the canonical string. If PKEY is not NULL, set *PKEY to
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// the key. LENGTH is the length of S in characters. Note that S may
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// not be NUL terminated.
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2006-08-19 00:29:20 +02:00
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2007-05-16 19:42:48 +02:00
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template<typename Stringpool_char>
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const Stringpool_char*
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Stringpool_template<Stringpool_char>::add_string(const Stringpool_char* s,
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2007-12-19 02:23:46 +01:00
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size_t len)
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2006-08-19 00:29:20 +02:00
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{
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2006-11-29 18:56:40 +01:00
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// We are in trouble if we've already computed the string offsets.
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gold_assert(this->strtab_size_ == 0);
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2006-11-07 05:40:46 +01:00
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// The size we allocate for a new Stringdata.
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2006-08-19 00:29:20 +02:00
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const size_t buffer_size = 1000;
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2006-11-07 05:40:46 +01:00
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// The amount we multiply the Stringdata index when calculating the
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// key.
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const size_t key_mult = 1024;
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2006-11-29 18:56:40 +01:00
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gold_assert(key_mult >= buffer_size);
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2006-11-07 05:40:46 +01:00
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2007-12-05 23:56:51 +01:00
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// Convert len to the number of bytes we need to allocate, including
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// the null character.
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len = (len + 1) * sizeof(Stringpool_char);
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2006-08-19 00:29:20 +02:00
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size_t alc;
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bool front = true;
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2007-05-16 19:42:48 +02:00
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if (len > buffer_size)
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2006-08-19 00:29:20 +02:00
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{
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2006-09-29 21:58:17 +02:00
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alc = sizeof(Stringdata) + len;
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2006-08-19 00:29:20 +02:00
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front = false;
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}
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else if (this->strings_.empty())
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2006-09-29 21:58:17 +02:00
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alc = sizeof(Stringdata) + buffer_size;
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2006-08-19 00:29:20 +02:00
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else
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{
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2010-08-25 10:36:54 +02:00
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Stringdata* psd = this->strings_.front();
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2007-05-16 19:42:48 +02:00
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if (len > psd->alc - psd->len)
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2006-09-29 21:58:17 +02:00
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alc = sizeof(Stringdata) + buffer_size;
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2006-08-19 00:29:20 +02:00
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else
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{
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char* ret = psd->data + psd->len;
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2007-12-05 23:56:51 +01:00
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memcpy(ret, s, len - sizeof(Stringpool_char));
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memset(ret + len - sizeof(Stringpool_char), 0,
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sizeof(Stringpool_char));
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2006-11-07 05:40:46 +01:00
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2007-05-16 19:42:48 +02:00
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psd->len += len;
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2006-11-07 05:40:46 +01:00
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2007-05-16 19:42:48 +02:00
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return reinterpret_cast<const Stringpool_char*>(ret);
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2006-08-19 00:29:20 +02:00
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}
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}
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2010-08-25 10:36:54 +02:00
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Stringdata* psd = reinterpret_cast<Stringdata*>(new char[alc]);
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2006-09-29 21:58:17 +02:00
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psd->alc = alc - sizeof(Stringdata);
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2007-12-05 23:56:51 +01:00
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memcpy(psd->data, s, len - sizeof(Stringpool_char));
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memset(psd->data + len - sizeof(Stringpool_char), 0,
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sizeof(Stringpool_char));
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2007-05-16 19:42:48 +02:00
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psd->len = len;
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2006-11-07 05:40:46 +01:00
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2006-08-19 00:29:20 +02:00
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if (front)
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this->strings_.push_front(psd);
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else
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this->strings_.push_back(psd);
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2006-11-07 05:40:46 +01:00
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2007-05-16 19:42:48 +02:00
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return reinterpret_cast<const Stringpool_char*>(psd->data);
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2006-08-19 00:29:20 +02:00
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}
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// Add a string to a string pool.
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2007-05-16 19:42:48 +02:00
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template<typename Stringpool_char>
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const Stringpool_char*
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2007-10-12 08:06:34 +02:00
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Stringpool_template<Stringpool_char>::add(const Stringpool_char* s, bool copy,
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Key* pkey)
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2007-12-19 01:29:28 +01:00
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{
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return this->add_with_length(s, string_length(s), copy, pkey);
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}
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2010-03-16 02:26:15 +01:00
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// Add a new key offset entry.
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template<typename Stringpool_char>
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void
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Stringpool_template<Stringpool_char>::new_key_offset(size_t length)
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{
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section_offset_type offset;
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if (this->zero_null_ && length == 0)
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offset = 0;
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else
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{
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2013-05-01 19:37:14 +02:00
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offset = this->offset_;
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2015-10-05 16:57:14 +02:00
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// Align strings.
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offset = align_address(offset, this->addralign_);
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2013-04-29 19:15:09 +02:00
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this->offset_ = offset + (length + 1) * sizeof(Stringpool_char);
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2010-03-16 02:26:15 +01:00
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}
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this->key_to_offset_.push_back(offset);
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}
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2007-12-19 01:29:28 +01:00
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template<typename Stringpool_char>
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const Stringpool_char*
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Stringpool_template<Stringpool_char>::add_with_length(const Stringpool_char* s,
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size_t length,
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bool copy,
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Key* pkey)
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2006-08-19 00:29:20 +02:00
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{
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2007-12-05 23:56:51 +01:00
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typedef std::pair<typename String_set_type::iterator, bool> Insert_type;
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2006-08-19 00:29:20 +02:00
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2008-07-24 09:23:20 +02:00
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// We add 1 so that 0 is always invalid.
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const Key k = this->key_to_offset_.size() + 1;
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2007-12-19 02:23:46 +01:00
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2007-12-05 23:56:51 +01:00
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if (!copy)
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2006-11-07 05:40:46 +01:00
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{
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2007-12-05 23:56:51 +01:00
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// When we don't need to copy the string, we can call insert
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// directly.
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2006-08-19 00:29:20 +02:00
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2007-12-19 02:23:46 +01:00
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std::pair<Hashkey, Hashval> element(Hashkey(s, length), k);
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2006-11-07 05:40:46 +01:00
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2007-12-05 23:56:51 +01:00
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Insert_type ins = this->string_set_.insert(element);
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2006-11-07 05:40:46 +01:00
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2007-12-05 23:56:51 +01:00
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typename String_set_type::const_iterator p = ins.first;
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if (ins.second)
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{
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// We just added the string. The key value has now been
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// used.
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2010-03-16 02:26:15 +01:00
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this->new_key_offset(length);
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2007-12-05 23:56:51 +01:00
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}
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else
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{
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2007-12-19 02:23:46 +01:00
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gold_assert(k != p->second);
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2007-12-05 23:56:51 +01:00
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}
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if (pkey != NULL)
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2007-12-19 02:23:46 +01:00
|
|
|
*pkey = p->second;
|
2007-12-05 23:56:51 +01:00
|
|
|
return p->first.string;
|
|
|
|
}
|
2006-11-07 05:40:46 +01:00
|
|
|
|
2007-12-19 01:29:28 +01:00
|
|
|
// When we have to copy the string, we look it up twice in the hash
|
2007-12-05 23:56:51 +01:00
|
|
|
// table. The problem is that we can't insert S before we
|
|
|
|
// canonicalize it by copying it into the canonical list. The hash
|
2007-12-19 01:29:28 +01:00
|
|
|
// code will only be computed once.
|
2007-12-05 23:56:51 +01:00
|
|
|
|
2007-12-19 01:29:28 +01:00
|
|
|
Hashkey hk(s, length);
|
2007-12-05 23:56:51 +01:00
|
|
|
typename String_set_type::const_iterator p = this->string_set_.find(hk);
|
|
|
|
if (p != this->string_set_.end())
|
|
|
|
{
|
|
|
|
if (pkey != NULL)
|
2007-12-19 02:23:46 +01:00
|
|
|
*pkey = p->second;
|
2007-12-05 23:56:51 +01:00
|
|
|
return p->first.string;
|
|
|
|
}
|
|
|
|
|
2010-03-16 02:26:15 +01:00
|
|
|
this->new_key_offset(length);
|
2007-12-19 02:23:46 +01:00
|
|
|
|
|
|
|
hk.string = this->add_string(s, length);
|
2007-12-05 23:56:51 +01:00
|
|
|
// The contents of the string stay the same, so we don't need to
|
|
|
|
// adjust hk.hash_code or hk.length.
|
|
|
|
|
2007-12-19 02:23:46 +01:00
|
|
|
std::pair<Hashkey, Hashval> element(hk, k);
|
2007-12-05 23:56:51 +01:00
|
|
|
|
|
|
|
Insert_type ins = this->string_set_.insert(element);
|
|
|
|
gold_assert(ins.second);
|
|
|
|
|
|
|
|
if (pkey != NULL)
|
|
|
|
*pkey = k;
|
|
|
|
return hk.string;
|
2006-08-19 00:29:20 +02:00
|
|
|
}
|
|
|
|
|
2007-05-16 19:42:48 +02:00
|
|
|
template<typename Stringpool_char>
|
|
|
|
const Stringpool_char*
|
|
|
|
Stringpool_template<Stringpool_char>::find(const Stringpool_char* s,
|
|
|
|
Key* pkey) const
|
2006-09-29 21:58:17 +02:00
|
|
|
{
|
2007-12-05 23:56:51 +01:00
|
|
|
Hashkey hk(s);
|
|
|
|
typename String_set_type::const_iterator p = this->string_set_.find(hk);
|
2006-09-29 21:58:17 +02:00
|
|
|
if (p == this->string_set_.end())
|
|
|
|
return NULL;
|
2006-11-07 05:40:46 +01:00
|
|
|
|
|
|
|
if (pkey != NULL)
|
2007-12-19 02:23:46 +01:00
|
|
|
*pkey = p->second;
|
2006-11-07 05:40:46 +01:00
|
|
|
|
2007-12-05 23:56:51 +01:00
|
|
|
return p->first.string;
|
2006-09-29 21:58:17 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
// Comparison routine used when sorting into an ELF strtab. We want
|
|
|
|
// to sort this so that when one string is a suffix of another, we
|
|
|
|
// always see the shorter string immediately after the longer string.
|
|
|
|
// For example, we want to see these strings in this order:
|
|
|
|
// abcd
|
|
|
|
// cd
|
|
|
|
// d
|
|
|
|
// When strings are not suffixes, we don't care what order they are
|
|
|
|
// in, but we need to ensure that suffixes wind up next to each other.
|
|
|
|
// So we do a reversed lexicographic sort on the reversed string.
|
|
|
|
|
2007-05-16 19:42:48 +02:00
|
|
|
template<typename Stringpool_char>
|
2006-09-29 21:58:17 +02:00
|
|
|
bool
|
2007-05-16 19:42:48 +02:00
|
|
|
Stringpool_template<Stringpool_char>::Stringpool_sort_comparison::operator()(
|
2007-09-18 07:16:39 +02:00
|
|
|
const Stringpool_sort_info& sort_info1,
|
|
|
|
const Stringpool_sort_info& sort_info2) const
|
2006-09-29 21:58:17 +02:00
|
|
|
{
|
2007-12-05 23:56:51 +01:00
|
|
|
const Hashkey& h1(sort_info1->first);
|
|
|
|
const Hashkey& h2(sort_info2->first);
|
|
|
|
const Stringpool_char* s1 = h1.string;
|
|
|
|
const Stringpool_char* s2 = h2.string;
|
|
|
|
const size_t len1 = h1.length;
|
|
|
|
const size_t len2 = h2.length;
|
2007-09-18 07:16:39 +02:00
|
|
|
const size_t minlen = len1 < len2 ? len1 : len2;
|
2007-05-16 19:42:48 +02:00
|
|
|
const Stringpool_char* p1 = s1 + len1 - 1;
|
|
|
|
const Stringpool_char* p2 = s2 + len2 - 1;
|
|
|
|
for (size_t i = minlen; i > 0; --i, --p1, --p2)
|
2006-09-29 21:58:17 +02:00
|
|
|
{
|
|
|
|
if (*p1 != *p2)
|
|
|
|
return *p1 > *p2;
|
|
|
|
}
|
|
|
|
return len1 > len2;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Return whether s1 is a suffix of s2.
|
|
|
|
|
2007-05-16 19:42:48 +02:00
|
|
|
template<typename Stringpool_char>
|
2006-09-29 21:58:17 +02:00
|
|
|
bool
|
2007-05-16 19:42:48 +02:00
|
|
|
Stringpool_template<Stringpool_char>::is_suffix(const Stringpool_char* s1,
|
2007-09-18 07:16:39 +02:00
|
|
|
size_t len1,
|
|
|
|
const Stringpool_char* s2,
|
|
|
|
size_t len2)
|
2006-09-29 21:58:17 +02:00
|
|
|
{
|
|
|
|
if (len1 > len2)
|
|
|
|
return false;
|
2007-05-16 19:42:48 +02:00
|
|
|
return memcmp(s1, s2 + len2 - len1, len1 * sizeof(Stringpool_char)) == 0;
|
2006-09-29 21:58:17 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
// Turn the stringpool into an ELF strtab: determine the offsets of
|
|
|
|
// each string in the table.
|
|
|
|
|
2007-05-16 19:42:48 +02:00
|
|
|
template<typename Stringpool_char>
|
2006-09-29 21:58:17 +02:00
|
|
|
void
|
2007-05-16 19:42:48 +02:00
|
|
|
Stringpool_template<Stringpool_char>::set_string_offsets()
|
2006-09-29 21:58:17 +02:00
|
|
|
{
|
2006-11-29 18:56:40 +01:00
|
|
|
if (this->strtab_size_ != 0)
|
|
|
|
{
|
|
|
|
// We've already computed the offsets.
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2007-05-16 19:42:48 +02:00
|
|
|
const size_t charsize = sizeof(Stringpool_char);
|
|
|
|
|
|
|
|
// Offset 0 may be reserved for the empty string.
|
2007-12-18 01:48:04 +01:00
|
|
|
section_offset_type offset = this->zero_null_ ? charsize : 0;
|
2007-09-18 07:16:39 +02:00
|
|
|
|
2007-09-21 17:54:07 +02:00
|
|
|
// Sorting to find suffixes can take over 25% of the total CPU time
|
|
|
|
// used by the linker. Since it's merely an optimization to reduce
|
|
|
|
// the strtab size, and gives a relatively small benefit (it's
|
|
|
|
// typically rare for a symbol to be a suffix of another), we only
|
|
|
|
// take the time to sort when the user asks for heavy optimization.
|
2009-06-23 09:04:10 +02:00
|
|
|
if (!this->optimize_)
|
2006-09-29 21:58:17 +02:00
|
|
|
{
|
2010-03-16 02:26:15 +01:00
|
|
|
// If we are not optimizing, the offsets are already assigned.
|
|
|
|
offset = this->offset_;
|
2007-09-21 17:54:07 +02:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
size_t count = this->string_set_.size();
|
|
|
|
|
|
|
|
std::vector<Stringpool_sort_info> v;
|
|
|
|
v.reserve(count);
|
|
|
|
|
|
|
|
for (typename String_set_type::iterator p = this->string_set_.begin();
|
|
|
|
p != this->string_set_.end();
|
|
|
|
++p)
|
2007-12-05 23:56:51 +01:00
|
|
|
v.push_back(Stringpool_sort_info(p));
|
2007-09-21 17:54:07 +02:00
|
|
|
|
|
|
|
std::sort(v.begin(), v.end(), Stringpool_sort_comparison());
|
|
|
|
|
2007-12-19 02:23:46 +01:00
|
|
|
section_offset_type last_offset = -1;
|
2007-09-21 17:54:07 +02:00
|
|
|
for (typename std::vector<Stringpool_sort_info>::iterator last = v.end(),
|
|
|
|
curr = v.begin();
|
|
|
|
curr != v.end();
|
|
|
|
last = curr++)
|
|
|
|
{
|
2007-12-19 02:23:46 +01:00
|
|
|
section_offset_type this_offset;
|
2007-12-05 23:56:51 +01:00
|
|
|
if (this->zero_null_ && (*curr)->first.string[0] == 0)
|
2007-12-19 02:23:46 +01:00
|
|
|
this_offset = 0;
|
2007-09-21 17:54:07 +02:00
|
|
|
else if (last != v.end()
|
2015-10-05 16:57:14 +02:00
|
|
|
&& ((((*curr)->first.length - (*last)->first.length)
|
|
|
|
% this->addralign_) == 0)
|
2007-12-05 23:56:51 +01:00
|
|
|
&& is_suffix((*curr)->first.string,
|
|
|
|
(*curr)->first.length,
|
|
|
|
(*last)->first.string,
|
|
|
|
(*last)->first.length))
|
2007-12-19 02:23:46 +01:00
|
|
|
this_offset = (last_offset
|
|
|
|
+ (((*last)->first.length - (*curr)->first.length)
|
|
|
|
* charsize));
|
2007-09-21 17:54:07 +02:00
|
|
|
else
|
|
|
|
{
|
2013-04-29 19:15:09 +02:00
|
|
|
this_offset = align_address(offset, this->addralign_);
|
|
|
|
offset = this_offset + ((*curr)->first.length + 1) * charsize;
|
2007-09-21 17:54:07 +02:00
|
|
|
}
|
2008-07-24 09:23:20 +02:00
|
|
|
this->key_to_offset_[(*curr)->second - 1] = this_offset;
|
2007-12-19 02:23:46 +01:00
|
|
|
last_offset = this_offset;
|
2007-09-21 17:54:07 +02:00
|
|
|
}
|
2006-09-29 21:58:17 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
this->strtab_size_ = offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Get the offset of a string in the ELF strtab. The string must
|
|
|
|
// exist.
|
|
|
|
|
2007-05-16 19:42:48 +02:00
|
|
|
template<typename Stringpool_char>
|
2007-12-18 01:48:04 +01:00
|
|
|
section_offset_type
|
2007-05-16 19:42:48 +02:00
|
|
|
Stringpool_template<Stringpool_char>::get_offset(const Stringpool_char* s)
|
|
|
|
const
|
2007-12-19 01:29:28 +01:00
|
|
|
{
|
|
|
|
return this->get_offset_with_length(s, string_length(s));
|
|
|
|
}
|
|
|
|
|
|
|
|
template<typename Stringpool_char>
|
|
|
|
section_offset_type
|
|
|
|
Stringpool_template<Stringpool_char>::get_offset_with_length(
|
|
|
|
const Stringpool_char* s,
|
|
|
|
size_t length) const
|
2006-09-29 21:58:17 +02:00
|
|
|
{
|
2006-11-29 18:56:40 +01:00
|
|
|
gold_assert(this->strtab_size_ != 0);
|
2007-12-19 01:29:28 +01:00
|
|
|
Hashkey hk(s, length);
|
|
|
|
typename String_set_type::const_iterator p = this->string_set_.find(hk);
|
2006-09-29 21:58:17 +02:00
|
|
|
if (p != this->string_set_.end())
|
2008-07-24 09:23:20 +02:00
|
|
|
return this->key_to_offset_[p->second - 1];
|
2006-11-29 18:56:40 +01:00
|
|
|
gold_unreachable();
|
2006-09-29 21:58:17 +02:00
|
|
|
}
|
|
|
|
|
2007-11-30 01:35:27 +01:00
|
|
|
// Write the ELF strtab into the buffer.
|
2006-09-29 21:58:17 +02:00
|
|
|
|
2007-05-16 19:42:48 +02:00
|
|
|
template<typename Stringpool_char>
|
2006-09-29 21:58:17 +02:00
|
|
|
void
|
2007-12-18 01:48:04 +01:00
|
|
|
Stringpool_template<Stringpool_char>::write_to_buffer(
|
|
|
|
unsigned char* buffer,
|
|
|
|
section_size_type bufsize)
|
2006-09-29 21:58:17 +02:00
|
|
|
{
|
2006-11-29 18:56:40 +01:00
|
|
|
gold_assert(this->strtab_size_ != 0);
|
2007-12-18 01:48:04 +01:00
|
|
|
gold_assert(bufsize >= this->strtab_size_);
|
2007-05-16 19:42:48 +02:00
|
|
|
if (this->zero_null_)
|
2007-11-30 01:35:27 +01:00
|
|
|
buffer[0] = '\0';
|
2007-05-16 19:42:48 +02:00
|
|
|
for (typename String_set_type::const_iterator p = this->string_set_.begin();
|
2006-09-29 21:58:17 +02:00
|
|
|
p != this->string_set_.end();
|
|
|
|
++p)
|
2007-11-30 01:35:27 +01:00
|
|
|
{
|
2007-12-05 23:56:51 +01:00
|
|
|
const int len = (p->first.length + 1) * sizeof(Stringpool_char);
|
2008-07-24 09:23:20 +02:00
|
|
|
const section_offset_type offset = this->key_to_offset_[p->second - 1];
|
2007-12-19 02:23:46 +01:00
|
|
|
gold_assert(static_cast<section_size_type>(offset) + len
|
2007-12-18 01:48:04 +01:00
|
|
|
<= this->strtab_size_);
|
2007-12-19 02:23:46 +01:00
|
|
|
memcpy(buffer + offset, p->first.string, len);
|
2007-11-30 01:35:27 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Write the ELF strtab into the output file at the specified offset.
|
|
|
|
|
|
|
|
template<typename Stringpool_char>
|
|
|
|
void
|
|
|
|
Stringpool_template<Stringpool_char>::write(Output_file* of, off_t offset)
|
|
|
|
{
|
|
|
|
gold_assert(this->strtab_size_ != 0);
|
|
|
|
unsigned char* view = of->get_output_view(offset, this->strtab_size_);
|
2007-12-01 07:34:12 +01:00
|
|
|
this->write_to_buffer(view, this->strtab_size_);
|
2007-11-30 01:35:27 +01:00
|
|
|
of->write_output_view(offset, this->strtab_size_, view);
|
2006-09-29 21:58:17 +02:00
|
|
|
}
|
|
|
|
|
2007-12-05 01:48:49 +01:00
|
|
|
// Print statistical information to stderr. This is used for --stats.
|
|
|
|
|
|
|
|
template<typename Stringpool_char>
|
|
|
|
void
|
|
|
|
Stringpool_template<Stringpool_char>::print_stats(const char* name) const
|
|
|
|
{
|
2013-12-20 06:54:43 +01:00
|
|
|
#if defined(HAVE_UNORDERED_MAP) || defined(HAVE_TR1_UNORDERED_MAP) || defined(HAVE_EXT_HASH_MAP)
|
2007-12-05 01:48:49 +01:00
|
|
|
fprintf(stderr, _("%s: %s entries: %zu; buckets: %zu\n"),
|
|
|
|
program_name, name, this->string_set_.size(),
|
|
|
|
this->string_set_.bucket_count());
|
|
|
|
#else
|
|
|
|
fprintf(stderr, _("%s: %s entries: %zu\n"),
|
|
|
|
program_name, name, this->table_.size());
|
|
|
|
#endif
|
|
|
|
fprintf(stderr, _("%s: %s Stringdata structures: %zu\n"),
|
|
|
|
program_name, name, this->strings_.size());
|
|
|
|
}
|
|
|
|
|
2007-05-16 19:42:48 +02:00
|
|
|
// Instantiate the templates we need.
|
|
|
|
|
|
|
|
template
|
|
|
|
class Stringpool_template<char>;
|
|
|
|
|
|
|
|
template
|
|
|
|
class Stringpool_template<uint16_t>;
|
|
|
|
|
|
|
|
template
|
|
|
|
class Stringpool_template<uint32_t>;
|
|
|
|
|
2006-08-19 00:29:20 +02:00
|
|
|
} // End namespace gold.
|