// layout.cc -- lay out output file sections for gold
-// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
#include "ehframe.h"
#include "compressed_output.h"
#include "reduced_debug_output.h"
+#include "object.h"
#include "reloc.h"
#include "descriptors.h"
#include "plugin.h"
namespace gold
{
+// Class Free_list.
+
+// The total number of free lists used.
+unsigned int Free_list::num_lists = 0;
+// The total number of free list nodes used.
+unsigned int Free_list::num_nodes = 0;
+// The total number of calls to Free_list::remove.
+unsigned int Free_list::num_removes = 0;
+// The total number of nodes visited during calls to Free_list::remove.
+unsigned int Free_list::num_remove_visits = 0;
+// The total number of calls to Free_list::allocate.
+unsigned int Free_list::num_allocates = 0;
+// The total number of nodes visited during calls to Free_list::allocate.
+unsigned int Free_list::num_allocate_visits = 0;
+
+// Initialize the free list. Creates a single free list node that
+// describes the entire region of length LEN. If EXTEND is true,
+// allocate() is allowed to extend the region beyond its initial
+// length.
+
+void
+Free_list::init(off_t len, bool extend)
+{
+ this->list_.push_front(Free_list_node(0, len));
+ this->last_remove_ = this->list_.begin();
+ this->extend_ = extend;
+ this->length_ = len;
+ ++Free_list::num_lists;
+ ++Free_list::num_nodes;
+}
+
+// Remove a chunk from the free list. Because we start with a single
+// node that covers the entire section, and remove chunks from it one
+// at a time, we do not need to coalesce chunks or handle cases that
+// span more than one free node. We expect to remove chunks from the
+// free list in order, and we expect to have only a few chunks of free
+// space left (corresponding to files that have changed since the last
+// incremental link), so a simple linear list should provide sufficient
+// performance.
+
+void
+Free_list::remove(off_t start, off_t end)
+{
+ if (start == end)
+ return;
+ gold_assert(start < end);
+
+ ++Free_list::num_removes;
+
+ Iterator p = this->last_remove_;
+ if (p->start_ > start)
+ p = this->list_.begin();
+
+ for (; p != this->list_.end(); ++p)
+ {
+ ++Free_list::num_remove_visits;
+ // Find a node that wholly contains the indicated region.
+ if (p->start_ <= start && p->end_ >= end)
+ {
+ // Case 1: the indicated region spans the whole node.
+ // Add some fuzz to avoid creating tiny free chunks.
+ if (p->start_ + 3 >= start && p->end_ <= end + 3)
+ p = this->list_.erase(p);
+ // Case 2: remove a chunk from the start of the node.
+ else if (p->start_ + 3 >= start)
+ p->start_ = end;
+ // Case 3: remove a chunk from the end of the node.
+ else if (p->end_ <= end + 3)
+ p->end_ = start;
+ // Case 4: remove a chunk from the middle, and split
+ // the node into two.
+ else
+ {
+ Free_list_node newnode(p->start_, start);
+ p->start_ = end;
+ this->list_.insert(p, newnode);
+ ++Free_list::num_nodes;
+ }
+ this->last_remove_ = p;
+ return;
+ }
+ }
+
+ // Did not find a node containing the given chunk. This could happen
+ // because a small chunk was already removed due to the fuzz.
+ gold_debug(DEBUG_INCREMENTAL,
+ "Free_list::remove(%d,%d) not found",
+ static_cast<int>(start), static_cast<int>(end));
+}
+
+// Allocate a chunk of size LEN from the free list. Returns -1ULL
+// if a sufficiently large chunk of free space is not found.
+// We use a simple first-fit algorithm.
+
+off_t
+Free_list::allocate(off_t len, uint64_t align, off_t minoff)
+{
+ gold_debug(DEBUG_INCREMENTAL,
+ "Free_list::allocate(%08lx, %d, %08lx)",
+ static_cast<long>(len), static_cast<int>(align),
+ static_cast<long>(minoff));
+ if (len == 0)
+ return align_address(minoff, align);
+
+ ++Free_list::num_allocates;
+
+ for (Iterator p = this->list_.begin(); p != this->list_.end(); ++p)
+ {
+ ++Free_list::num_allocate_visits;
+ off_t start = p->start_ > minoff ? p->start_ : minoff;
+ start = align_address(start, align);
+ off_t end = start + len;
+ if (end > p->end_ && p->end_ == this->length_ && this->extend_)
+ {
+ this->length_ = end;
+ p->end_ = end;
+ }
+ if (end <= p->end_)
+ {
+ if (p->start_ + 3 >= start && p->end_ <= end + 3)
+ this->list_.erase(p);
+ else if (p->start_ + 3 >= start)
+ p->start_ = end;
+ else if (p->end_ <= end + 3)
+ p->end_ = start;
+ else
+ {
+ Free_list_node newnode(p->start_, start);
+ p->start_ = end;
+ this->list_.insert(p, newnode);
+ ++Free_list::num_nodes;
+ }
+ return start;
+ }
+ }
+ if (this->extend_)
+ {
+ off_t start = align_address(this->length_, align);
+ this->length_ = start + len;
+ return start;
+ }
+ return -1;
+}
+
+// Dump the free list (for debugging).
+void
+Free_list::dump()
+{
+ gold_info("Free list:\n start end length\n");
+ for (Iterator p = this->list_.begin(); p != this->list_.end(); ++p)
+ gold_info(" %08lx %08lx %08lx", static_cast<long>(p->start_),
+ static_cast<long>(p->end_),
+ static_cast<long>(p->end_ - p->start_));
+}
+
+// Print the statistics for the free lists.
+void
+Free_list::print_stats()
+{
+ fprintf(stderr, _("%s: total free lists: %u\n"),
+ program_name, Free_list::num_lists);
+ fprintf(stderr, _("%s: total free list nodes: %u\n"),
+ program_name, Free_list::num_nodes);
+ fprintf(stderr, _("%s: calls to Free_list::remove: %u\n"),
+ program_name, Free_list::num_removes);
+ fprintf(stderr, _("%s: nodes visited: %u\n"),
+ program_name, Free_list::num_remove_visits);
+ fprintf(stderr, _("%s: calls to Free_list::allocate: %u\n"),
+ program_name, Free_list::num_allocates);
+ fprintf(stderr, _("%s: nodes visited: %u\n"),
+ program_name, Free_list::num_allocate_visits);
+}
+
// Layout::Relaxation_debug_check methods.
// Check that sections and special data are in reset states.
void
Layout_task_runner::run(Workqueue* workqueue, const Task* task)
{
- off_t file_size = this->layout_->finalize(this->input_objects_,
- this->symtab_,
- this->target_,
- task);
+ Layout* layout = this->layout_;
+ off_t file_size = layout->finalize(this->input_objects_,
+ this->symtab_,
+ this->target_,
+ task);
// Now we know the final size of the output file and we know where
// each piece of information goes.
if (this->mapfile_ != NULL)
{
this->mapfile_->print_discarded_sections(this->input_objects_);
- this->layout_->print_to_mapfile(this->mapfile_);
+ layout->print_to_mapfile(this->mapfile_);
}
- Output_file* of = new Output_file(parameters->options().output_file_name());
- if (this->options_.oformat_enum() != General_options::OBJECT_FORMAT_ELF)
- of->set_is_temporary();
- of->open(file_size);
+ Output_file* of;
+ if (layout->incremental_base() == NULL)
+ {
+ of = new Output_file(parameters->options().output_file_name());
+ if (this->options_.oformat_enum() != General_options::OBJECT_FORMAT_ELF)
+ of->set_is_temporary();
+ of->open(file_size);
+ }
+ else
+ {
+ of = layout->incremental_base()->output_file();
+
+ // Apply the incremental relocations for symbols whose values
+ // have changed. We do this before we resize the file and start
+ // writing anything else to it, so that we can read the old
+ // incremental information from the file before (possibly)
+ // overwriting it.
+ if (parameters->incremental_update())
+ layout->incremental_base()->apply_incremental_relocs(this->symtab_,
+ this->layout_,
+ of);
+
+ of->resize(file_size);
+ }
// Queue up the final set of tasks.
gold::queue_final_tasks(this->options_, this->input_objects_,
- this->symtab_, this->layout_, workqueue, of);
+ this->symtab_, layout, workqueue, of);
}
// Layout methods.
section_headers_(NULL),
tls_segment_(NULL),
relro_segment_(NULL),
+ interp_segment_(NULL),
increase_relro_(0),
symtab_section_(NULL),
symtab_xindex_(NULL),
any_postprocessing_sections_(false),
resized_signatures_(false),
have_stabstr_section_(false),
+ section_ordering_specified_(false),
incremental_inputs_(NULL),
record_output_section_data_from_script_(false),
script_output_section_data_list_(),
segment_states_(NULL),
- relaxation_debug_check_(NULL)
+ relaxation_debug_check_(NULL),
+ input_section_position_(),
+ input_section_glob_(),
+ incremental_base_(NULL),
+ free_list_()
{
// Make space for more than enough segments for a typical file.
// This is just for efficiency--it's OK if we wind up needing more.
this->special_output_list_.reserve(2);
// Initialize structure needed for an incremental build.
- if (parameters->options().incremental())
+ if (parameters->incremental())
this->incremental_inputs_ = new Incremental_inputs;
// The section name pool is worth optimizing in all cases, because
this->namepool_.set_optimize();
}
+// For incremental links, record the base file to be modified.
+
+void
+Layout::set_incremental_base(Incremental_binary* base)
+{
+ this->incremental_base_ = base;
+ this->free_list_.init(base->output_file()->filesize(), true);
+}
+
// Hash a key we use to look up an output section mapping.
size_t
return false;
}
+// Sometimes we compress sections. This is typically done for
+// sections that are not part of normal program execution (such as
+// .debug_* sections), and where the readers of these sections know
+// how to deal with compressed sections. This routine doesn't say for
+// certain whether we'll compress -- it depends on commandline options
+// as well -- just whether this section is a candidate for compression.
+// (The Output_compressed_section class decides whether to compress
+// a given section, and picks the name of the compressed section.)
+
+static bool
+is_compressible_debug_section(const char* secname)
+{
+ return (is_prefix_of(".debug", secname));
+}
+
+// We may see compressed debug sections in input files. Return TRUE
+// if this is the name of a compressed debug section.
+
+bool
+is_compressed_debug_section(const char* secname)
+{
+ return (is_prefix_of(".zdebug", secname));
+}
+
// Whether to include this section in the link.
template<int size, bool big_endian>
bool
-Layout::include_section(Sized_relobj<size, big_endian>*, const char* name,
+Layout::include_section(Sized_relobj_file<size, big_endian>*, const char* name,
const elfcpp::Shdr<size, big_endian>& shdr)
{
if (shdr.get_sh_flags() & elfcpp::SHF_EXCLUDE)
return NULL;
}
+// When we put a .ctors or .dtors section with more than one word into
+// a .init_array or .fini_array section, we need to reverse the words
+// in the .ctors/.dtors section. This is because .init_array executes
+// constructors front to back, where .ctors executes them back to
+// front, and vice-versa for .fini_array/.dtors. Although we do want
+// to remap .ctors/.dtors into .init_array/.fini_array because it can
+// be more efficient, we don't want to change the order in which
+// constructors/destructors are run. This set just keeps track of
+// these sections which need to be reversed. It is only changed by
+// Layout::layout. It should be a private member of Layout, but that
+// would require layout.h to #include object.h to get the definition
+// of Section_id.
+static Unordered_set<Section_id, Section_id_hash> ctors_sections_in_init_array;
+
+// Return whether OBJECT/SHNDX is a .ctors/.dtors section mapped to a
+// .init_array/.fini_array section.
+
+bool
+Layout::is_ctors_in_init_array(Relobj* relobj, unsigned int shndx) const
+{
+ return (ctors_sections_in_init_array.find(Section_id(relobj, shndx))
+ != ctors_sections_in_init_array.end());
+}
+
// Return the output section to use for section NAME with type TYPE
// and section flags FLAGS. NAME must be canonicalized in the string
-// pool, and NAME_KEY is the key. IS_INTERP is true if this is the
-// .interp section. IS_DYNAMIC_LINKER_SECTION is true if this section
-// is used by the dynamic linker. IS_RELRO is true for a relro
-// section. IS_LAST_RELRO is true for the last relro section.
-// IS_FIRST_NON_RELRO is true for the first non-relro section.
+// pool, and NAME_KEY is the key. ORDER is where this should appear
+// in the output sections. IS_RELRO is true for a relro section.
Output_section*
Layout::get_output_section(const char* name, Stringpool::Key name_key,
elfcpp::Elf_Word type, elfcpp::Elf_Xword flags,
Output_section_order order, bool is_relro)
{
+ elfcpp::Elf_Word lookup_type = type;
+
+ // For lookup purposes, treat INIT_ARRAY, FINI_ARRAY, and
+ // PREINIT_ARRAY like PROGBITS. This ensures that we combine
+ // .init_array, .fini_array, and .preinit_array sections by name
+ // whatever their type in the input file. We do this because the
+ // types are not always right in the input files.
+ if (lookup_type == elfcpp::SHT_INIT_ARRAY
+ || lookup_type == elfcpp::SHT_FINI_ARRAY
+ || lookup_type == elfcpp::SHT_PREINIT_ARRAY)
+ lookup_type = elfcpp::SHT_PROGBITS;
+
elfcpp::Elf_Xword lookup_flags = flags;
// Ignoring SHF_WRITE and SHF_EXECINSTR here means that we combine
// controlling this.
lookup_flags &= ~(elfcpp::SHF_WRITE | elfcpp::SHF_EXECINSTR);
- const Key key(name_key, std::make_pair(type, lookup_flags));
+ const Key key(name_key, std::make_pair(lookup_type, lookup_flags));
const std::pair<Key, Output_section*> v(key, NULL);
std::pair<Section_name_map::iterator, bool> ins(
this->section_name_map_.insert(v));
// there should be an option to control this.
Output_section* os = NULL;
- if (type == elfcpp::SHT_PROGBITS)
+ if (lookup_type == elfcpp::SHT_PROGBITS)
{
if (flags == 0)
{
Output_section* same_name = this->find_output_section(name);
if (same_name != NULL
- && same_name->type() == elfcpp::SHT_PROGBITS
+ && (same_name->type() == elfcpp::SHT_PROGBITS
+ || same_name->type() == elfcpp::SHT_INIT_ARRAY
+ || same_name->type() == elfcpp::SHT_FINI_ARRAY
+ || same_name->type() == elfcpp::SHT_PREINIT_ARRAY)
&& (same_name->flags() & elfcpp::SHF_TLS) == 0)
os = same_name;
}
else if ((flags & elfcpp::SHF_TLS) == 0)
{
elfcpp::Elf_Xword zero_flags = 0;
- const Key zero_key(name_key, std::make_pair(type, zero_flags));
+ const Key zero_key(name_key, std::make_pair(lookup_type,
+ zero_flags));
Section_name_map::iterator p =
this->section_name_map_.find(zero_key);
if (p != this->section_name_map_.end())
// RELOBJ, with type TYPE and flags FLAGS. RELOBJ may be NULL for a
// linker created section. IS_INPUT_SECTION is true if we are
// choosing an output section for an input section found in a input
-// file. IS_INTERP is true if this is the .interp section.
-// IS_DYNAMIC_LINKER_SECTION is true if this section is used by the
-// dynamic linker. IS_RELRO is true for a relro section.
-// IS_LAST_RELRO is true for the last relro section.
-// IS_FIRST_NON_RELRO is true for the first non-relro section. This
-// will return NULL if the input section should be discarded.
+// file. ORDER is where this section should appear in the output
+// sections. IS_RELRO is true for a relro section. This will return
+// NULL if the input section should be discarded.
Output_section*
Layout::choose_output_section(const Relobj* relobj, const char* name,
// Some flags in the input section should not be automatically
// copied to the output section.
flags &= ~ (elfcpp::SHF_INFO_LINK
- | elfcpp::SHF_LINK_ORDER
| elfcpp::SHF_GROUP
| elfcpp::SHF_MERGE
| elfcpp::SHF_STRINGS);
+ // We only clear the SHF_LINK_ORDER flag in for
+ // a non-relocatable link.
+ if (!parameters->options().relocatable())
+ flags &= ~elfcpp::SHF_LINK_ORDER;
+
if (this->script_options_->saw_sections_clause())
{
// We are using a SECTIONS clause, so the output section is
const char* file_name = relobj == NULL ? NULL : relobj->name().c_str();
Output_section** output_section_slot;
Script_sections::Section_type script_section_type;
+ const char* orig_name = name;
name = ss->output_section_name(file_name, name, &output_section_slot,
&script_section_type);
if (name == NULL)
{
+ gold_debug(DEBUG_SCRIPT, _("Unable to create output section '%s' "
+ "because it is not allowed by the "
+ "SECTIONS clause of the linker script"),
+ orig_name);
// The SECTIONS clause says to discard this input section.
return NULL;
}
// FIXME: Handle SHF_OS_NONCONFORMING somewhere.
+ size_t len = strlen(name);
+ char* uncompressed_name = NULL;
+
+ // Compressed debug sections should be mapped to the corresponding
+ // uncompressed section.
+ if (is_compressed_debug_section(name))
+ {
+ uncompressed_name = new char[len];
+ uncompressed_name[0] = '.';
+ gold_assert(name[0] == '.' && name[1] == 'z');
+ strncpy(&uncompressed_name[1], &name[2], len - 2);
+ uncompressed_name[len - 1] = '\0';
+ len -= 1;
+ name = uncompressed_name;
+ }
+
// Turn NAME from the name of the input section into the name of the
// output section.
-
- size_t len = strlen(name);
if (is_input_section
&& !this->script_options_->saw_sections_clause()
&& !parameters->options().relocatable())
- name = Layout::output_section_name(name, &len);
+ name = Layout::output_section_name(relobj, name, &len);
Stringpool::Key name_key;
name = this->namepool_.add_with_length(name, len, true, &name_key);
+ if (uncompressed_name != NULL)
+ delete[] uncompressed_name;
+
// Find or make the output section. The output section is selected
// based on the section name, type, and flags.
return this->get_output_section(name, name_key, type, flags, order, is_relro);
}
+// For incremental links, record the initial fixed layout of a section
+// from the base file, and return a pointer to the Output_section.
+
+template<int size, bool big_endian>
+Output_section*
+Layout::init_fixed_output_section(const char* name,
+ elfcpp::Shdr<size, big_endian>& shdr)
+{
+ unsigned int sh_type = shdr.get_sh_type();
+
+ // We preserve the layout of PROGBITS, NOBITS, and NOTE sections.
+ // All others will be created from scratch and reallocated.
+ if (sh_type != elfcpp::SHT_PROGBITS
+ && sh_type != elfcpp::SHT_NOBITS
+ && sh_type != elfcpp::SHT_NOTE)
+ return NULL;
+
+ typename elfcpp::Elf_types<size>::Elf_Addr sh_addr = shdr.get_sh_addr();
+ typename elfcpp::Elf_types<size>::Elf_Off sh_offset = shdr.get_sh_offset();
+ typename elfcpp::Elf_types<size>::Elf_WXword sh_size = shdr.get_sh_size();
+ typename elfcpp::Elf_types<size>::Elf_WXword sh_flags = shdr.get_sh_flags();
+ typename elfcpp::Elf_types<size>::Elf_WXword sh_addralign =
+ shdr.get_sh_addralign();
+
+ // Make the output section.
+ Stringpool::Key name_key;
+ name = this->namepool_.add(name, true, &name_key);
+ Output_section* os = this->get_output_section(name, name_key, sh_type,
+ sh_flags, ORDER_INVALID, false);
+ os->set_fixed_layout(sh_addr, sh_offset, sh_size, sh_addralign);
+ if (sh_type != elfcpp::SHT_NOBITS)
+ this->free_list_.remove(sh_offset, sh_offset + sh_size);
+ return os;
+}
+
// Return the output section to use for input section SHNDX, with name
// NAME, with header HEADER, from object OBJECT. RELOC_SHNDX is the
// index of a relocation section which applies to this section, or 0
template<int size, bool big_endian>
Output_section*
-Layout::layout(Sized_relobj<size, big_endian>* object, unsigned int shndx,
+Layout::layout(Sized_relobj_file<size, big_endian>* object, unsigned int shndx,
const char* name, const elfcpp::Shdr<size, big_endian>& shdr,
unsigned int reloc_shndx, unsigned int, off_t* off)
{
if (!this->include_section(object, name, shdr))
return NULL;
- Output_section* os;
-
- // Sometimes .init_array*, .preinit_array* and .fini_array* do not have
- // correct section types. Force them here.
elfcpp::Elf_Word sh_type = shdr.get_sh_type();
- if (sh_type == elfcpp::SHT_PROGBITS)
- {
- static const char init_array_prefix[] = ".init_array";
- static const char preinit_array_prefix[] = ".preinit_array";
- static const char fini_array_prefix[] = ".fini_array";
- static size_t init_array_prefix_size = sizeof(init_array_prefix) - 1;
- static size_t preinit_array_prefix_size =
- sizeof(preinit_array_prefix) - 1;
- static size_t fini_array_prefix_size = sizeof(fini_array_prefix) - 1;
-
- if (strncmp(name, init_array_prefix, init_array_prefix_size) == 0)
- sh_type = elfcpp::SHT_INIT_ARRAY;
- else if (strncmp(name, preinit_array_prefix, preinit_array_prefix_size)
- == 0)
- sh_type = elfcpp::SHT_PREINIT_ARRAY;
- else if (strncmp(name, fini_array_prefix, fini_array_prefix_size) == 0)
- sh_type = elfcpp::SHT_FINI_ARRAY;
- }
// In a relocatable link a grouped section must not be combined with
// any other sections.
+ Output_section* os;
if (parameters->options().relocatable()
&& (shdr.get_sh_flags() & elfcpp::SHF_GROUP) != 0)
{
}
// By default the GNU linker sorts input sections whose names match
- // .ctor.*, .dtor.*, .init_array.*, or .fini_array.*. The sections
- // are sorted by name. This is used to implement constructor
- // priority ordering. We are compatible.
+ // .ctors.*, .dtors.*, .init_array.*, or .fini_array.*. The
+ // sections are sorted by name. This is used to implement
+ // constructor priority ordering. We are compatible. When we put
+ // .ctor sections in .init_array and .dtor sections in .fini_array,
+ // we must also sort plain .ctor and .dtor sections.
if (!this->script_options_->saw_sections_clause()
+ && !parameters->options().relocatable()
&& (is_prefix_of(".ctors.", name)
|| is_prefix_of(".dtors.", name)
|| is_prefix_of(".init_array.", name)
- || is_prefix_of(".fini_array.", name)))
+ || is_prefix_of(".fini_array.", name)
+ || (parameters->options().ctors_in_init_array()
+ && (strcmp(name, ".ctors") == 0
+ || strcmp(name, ".dtors") == 0))))
os->set_must_sort_attached_input_sections();
+ // If this is a .ctors or .ctors.* section being mapped to a
+ // .init_array section, or a .dtors or .dtors.* section being mapped
+ // to a .fini_array section, we will need to reverse the words if
+ // there is more than one. Record this section for later. See
+ // ctors_sections_in_init_array above.
+ if (!this->script_options_->saw_sections_clause()
+ && !parameters->options().relocatable()
+ && shdr.get_sh_size() > size / 8
+ && (((strcmp(name, ".ctors") == 0
+ || is_prefix_of(".ctors.", name))
+ && strcmp(os->name(), ".init_array") == 0)
+ || ((strcmp(name, ".dtors") == 0
+ || is_prefix_of(".dtors.", name))
+ && strcmp(os->name(), ".fini_array") == 0)))
+ ctors_sections_in_init_array.insert(Section_id(object, shndx));
+
// FIXME: Handle SHF_LINK_ORDER somewhere.
+ elfcpp::Elf_Xword orig_flags = os->flags();
+
*off = os->add_input_section(this, object, shndx, name, shdr, reloc_shndx,
this->script_options_->saw_sections_clause());
+
+ // If the flags changed, we may have to change the order.
+ if ((orig_flags & elfcpp::SHF_ALLOC) != 0)
+ {
+ orig_flags &= (elfcpp::SHF_WRITE | elfcpp::SHF_EXECINSTR);
+ elfcpp::Elf_Xword new_flags =
+ os->flags() & (elfcpp::SHF_WRITE | elfcpp::SHF_EXECINSTR);
+ if (orig_flags != new_flags)
+ os->set_order(this->default_section_order(os, false));
+ }
+
this->have_added_input_section_ = true;
return os;
template<int size, bool big_endian>
Output_section*
-Layout::layout_reloc(Sized_relobj<size, big_endian>* object,
+Layout::layout_reloc(Sized_relobj_file<size, big_endian>* object,
unsigned int,
const elfcpp::Shdr<size, big_endian>& shdr,
Output_section* data_section,
template<int size, bool big_endian>
void
Layout::layout_group(Symbol_table* symtab,
- Sized_relobj<size, big_endian>* object,
+ Sized_relobj_file<size, big_endian>* object,
unsigned int,
const char* group_section_name,
const char* signature,
template<int size, bool big_endian>
Output_section*
-Layout::layout_eh_frame(Sized_relobj<size, big_endian>* object,
+Layout::layout_eh_frame(Sized_relobj_file<size, big_endian>* object,
const unsigned char* symbols,
off_t symbols_size,
const unsigned char* symbol_names,
unsigned int reloc_shndx, unsigned int reloc_type,
off_t* off)
{
- gold_assert(shdr.get_sh_type() == elfcpp::SHT_PROGBITS);
+ gold_assert(shdr.get_sh_type() == elfcpp::SHT_PROGBITS
+ || shdr.get_sh_type() == elfcpp::SHT_X86_64_UNWIND);
gold_assert((shdr.get_sh_flags() & elfcpp::SHF_ALLOC) != 0);
- const char* const name = ".eh_frame";
- Output_section* os = this->choose_output_section(object, name,
+ Output_section* os = this->make_eh_frame_section(object);
+ if (os == NULL)
+ return NULL;
+
+ gold_assert(this->eh_frame_section_ == os);
+
+ elfcpp::Elf_Xword orig_flags = os->flags();
+
+ if (!parameters->incremental()
+ && this->eh_frame_data_->add_ehframe_input_section(object,
+ symbols,
+ symbols_size,
+ symbol_names,
+ symbol_names_size,
+ shndx,
+ reloc_shndx,
+ reloc_type))
+ {
+ os->update_flags_for_input_section(shdr.get_sh_flags());
+
+ // A writable .eh_frame section is a RELRO section.
+ if ((orig_flags & (elfcpp::SHF_WRITE | elfcpp::SHF_EXECINSTR))
+ != (os->flags() & (elfcpp::SHF_WRITE | elfcpp::SHF_EXECINSTR)))
+ {
+ os->set_is_relro();
+ os->set_order(ORDER_RELRO);
+ }
+
+ // We found a .eh_frame section we are going to optimize, so now
+ // we can add the set of optimized sections to the output
+ // section. We need to postpone adding this until we've found a
+ // section we can optimize so that the .eh_frame section in
+ // crtbegin.o winds up at the start of the output section.
+ if (!this->added_eh_frame_data_)
+ {
+ os->add_output_section_data(this->eh_frame_data_);
+ this->added_eh_frame_data_ = true;
+ }
+ *off = -1;
+ }
+ else
+ {
+ // We couldn't handle this .eh_frame section for some reason.
+ // Add it as a normal section.
+ bool saw_sections_clause = this->script_options_->saw_sections_clause();
+ *off = os->add_input_section(this, object, shndx, ".eh_frame", shdr,
+ reloc_shndx, saw_sections_clause);
+ this->have_added_input_section_ = true;
+
+ if ((orig_flags & (elfcpp::SHF_WRITE | elfcpp::SHF_EXECINSTR))
+ != (os->flags() & (elfcpp::SHF_WRITE | elfcpp::SHF_EXECINSTR)))
+ os->set_order(this->default_section_order(os, false));
+ }
+
+ return os;
+}
+
+// Create and return the magic .eh_frame section. Create
+// .eh_frame_hdr also if appropriate. OBJECT is the object with the
+// input .eh_frame section; it may be NULL.
+
+Output_section*
+Layout::make_eh_frame_section(const Relobj* object)
+{
+ // FIXME: On x86_64, this could use SHT_X86_64_UNWIND rather than
+ // SHT_PROGBITS.
+ Output_section* os = this->choose_output_section(object, ".eh_frame",
elfcpp::SHT_PROGBITS,
elfcpp::SHF_ALLOC, false,
ORDER_EHFRAME, false);
this->eh_frame_section_ = os;
this->eh_frame_data_ = new Eh_frame();
- if (parameters->options().eh_frame_hdr())
+ // For incremental linking, we do not optimize .eh_frame sections
+ // or create a .eh_frame_hdr section.
+ if (parameters->options().eh_frame_hdr() && !parameters->incremental())
{
Output_section* hdr_os =
this->choose_output_section(NULL, ".eh_frame_hdr",
}
}
- gold_assert(this->eh_frame_section_ == os);
+ return os;
+}
- if (this->eh_frame_data_->add_ehframe_input_section(object,
- symbols,
- symbols_size,
- symbol_names,
- symbol_names_size,
- shndx,
- reloc_shndx,
- reloc_type))
- {
- os->update_flags_for_input_section(shdr.get_sh_flags());
+// Add an exception frame for a PLT. This is called from target code.
- // We found a .eh_frame section we are going to optimize, so now
- // we can add the set of optimized sections to the output
- // section. We need to postpone adding this until we've found a
- // section we can optimize so that the .eh_frame section in
- // crtbegin.o winds up at the start of the output section.
- if (!this->added_eh_frame_data_)
- {
- os->add_output_section_data(this->eh_frame_data_);
- this->added_eh_frame_data_ = true;
- }
- *off = -1;
+void
+Layout::add_eh_frame_for_plt(Output_data* plt, const unsigned char* cie_data,
+ size_t cie_length, const unsigned char* fde_data,
+ size_t fde_length)
+{
+ if (parameters->incremental())
+ {
+ // FIXME: Maybe this could work some day....
+ return;
}
- else
+ Output_section* os = this->make_eh_frame_section(NULL);
+ if (os == NULL)
+ return;
+ this->eh_frame_data_->add_ehframe_for_plt(plt, cie_data, cie_length,
+ fde_data, fde_length);
+ if (!this->added_eh_frame_data_)
{
- // We couldn't handle this .eh_frame section for some reason.
- // Add it as a normal section.
- bool saw_sections_clause = this->script_options_->saw_sections_clause();
- *off = os->add_input_section(this, object, shndx, name, shdr, reloc_shndx,
- saw_sections_clause);
- this->have_added_input_section_ = true;
+ os->add_output_section_data(this->eh_frame_data_);
+ this->added_eh_frame_data_ = true;
}
-
- return os;
}
// Add POSD to an output section using NAME, TYPE, and FLAGS. Return
return ret;
}
-// Sometimes we compress sections. This is typically done for
-// sections that are not part of normal program execution (such as
-// .debug_* sections), and where the readers of these sections know
-// how to deal with compressed sections. This routine doesn't say for
-// certain whether we'll compress -- it depends on commandline options
-// as well -- just whether this section is a candidate for compression.
-// (The Output_compressed_section class decides whether to compress
-// a given section, and picks the name of the compressed section.)
-
-static bool
-is_compressible_debug_section(const char* secname)
-{
- return (is_prefix_of(".debug", secname));
-}
-
-// We may see compressed debug sections in input files. Return TRUE
-// if this is the name of a compressed debug section.
-
-bool
-is_compressed_debug_section(const char* secname)
-{
- return (is_prefix_of(".zdebug", secname));
-}
-
// Make a new Output_section, and attach it to segments as
// appropriate. ORDER is the order in which this section should
// appear in the output segment. IS_RELRO is true if this is a relro
}
else
{
+ // Sometimes .init_array*, .preinit_array* and .fini_array* do
+ // not have correct section types. Force them here.
+ if (type == elfcpp::SHT_PROGBITS)
+ {
+ if (is_prefix_of(".init_array", name))
+ type = elfcpp::SHT_INIT_ARRAY;
+ else if (is_prefix_of(".preinit_array", name))
+ type = elfcpp::SHT_PREINIT_ARRAY;
+ else if (is_prefix_of(".fini_array", name))
+ type = elfcpp::SHT_FINI_ARRAY;
+ }
+
// FIXME: const_cast is ugly.
Target* target = const_cast<Target*>(¶meters->target());
os = target->make_output_section(name, type, flags);
// do the same. We need to know that this might happen before we
// attach any input sections.
if (!this->script_options_->saw_sections_clause()
- && (strcmp(name, ".ctors") == 0
- || strcmp(name, ".dtors") == 0
- || strcmp(name, ".init_array") == 0
- || strcmp(name, ".fini_array") == 0))
+ && !parameters->options().relocatable()
+ && (strcmp(name, ".init_array") == 0
+ || strcmp(name, ".fini_array") == 0
+ || (!parameters->options().ctors_in_init_array()
+ && (strcmp(name, ".ctors") == 0
+ || strcmp(name, ".dtors") == 0))))
os->set_may_sort_attached_input_sections();
// Check for .stab*str sections, as .stab* sections need to link to
&& strcmp(name + strlen(name) - 3, "str") == 0)
this->have_stabstr_section_ = true;
+ // During a full incremental link, we add patch space to most
+ // PROGBITS and NOBITS sections. Flag those that may be
+ // arbitrarily padded.
+ if ((type == elfcpp::SHT_PROGBITS || type == elfcpp::SHT_NOBITS)
+ && order != ORDER_INTERP
+ && order != ORDER_INIT
+ && order != ORDER_PLT
+ && order != ORDER_FINI
+ && order != ORDER_RELRO_LAST
+ && order != ORDER_NON_RELRO_FIRST
+ && strcmp(name, ".ctors") != 0
+ && strcmp(name, ".dtors") != 0
+ && strcmp(name, ".jcr") != 0)
+ os->set_is_patch_space_allowed();
+
// If we have already attached the sections to segments, then we
// need to attach this one now. This happens for sections created
// directly by the linker.
bool is_address_set = parameters->options().section_start(os->name(), &addr);
// In general the only thing we really care about for PT_LOAD
- // segments is whether or not they are writable, so that is how we
- // search for them. Large data sections also go into their own
- // PT_LOAD segment. People who need segments sorted on some other
- // basis will have to use a linker script.
+ // segments is whether or not they are writable or executable,
+ // so that is how we search for them.
+ // Large data sections also go into their own PT_LOAD segment.
+ // People who need segments sorted on some other basis will
+ // have to use a linker script.
Segment_list::const_iterator p;
for (p = this->segment_list_.begin();
if (!parameters->options().omagic()
&& ((*p)->flags() & elfcpp::PF_W) != (seg_flags & elfcpp::PF_W))
continue;
+ if (parameters->options().rosegment()
+ && ((*p)->flags() & elfcpp::PF_X) != (seg_flags & elfcpp::PF_X))
+ continue;
// If -Tbss was specified, we need to separate the data and BSS
// segments.
if (parameters->options().user_set_Tbss())
this->make_output_segment(elfcpp::PT_GNU_RELRO, seg_flags);
this->relro_segment_->add_output_section_to_nonload(os, seg_flags);
}
+
+ // If we see a section named .interp, put it into a PT_INTERP
+ // segment. This seems broken to me, but this is what GNU ld does,
+ // and glibc expects it.
+ if (strcmp(os->name(), ".interp") == 0
+ && !this->script_options_->saw_phdrs_clause())
+ {
+ if (this->interp_segment_ == NULL)
+ this->make_output_segment(elfcpp::PT_INTERP, seg_flags);
+ else
+ gold_warning(_("multiple '.interp' sections in input files "
+ "may cause confusing PT_INTERP segment"));
+ this->interp_segment_->add_output_section_to_nonload(os, seg_flags);
+ }
}
// Make an output section for a script.
// object. On some targets that will force an executable stack.
void
-Layout::layout_gnu_stack(bool seen_gnu_stack, uint64_t gnu_stack_flags)
+Layout::layout_gnu_stack(bool seen_gnu_stack, uint64_t gnu_stack_flags,
+ const Object* obj)
{
if (!seen_gnu_stack)
- this->input_without_gnu_stack_note_ = true;
+ {
+ this->input_without_gnu_stack_note_ = true;
+ if (parameters->options().warn_execstack()
+ && parameters->target().is_default_stack_executable())
+ gold_warning(_("%s: missing .note.GNU-stack section"
+ " implies executable stack"),
+ obj->name().c_str());
+ }
else
{
this->input_with_gnu_stack_note_ = true;
if ((gnu_stack_flags & elfcpp::SHF_EXECINSTR) != 0)
- this->input_requires_executable_stack_ = true;
+ {
+ this->input_requires_executable_stack_ = true;
+ if (parameters->options().warn_execstack()
+ || parameters->options().is_stack_executable())
+ gold_warning(_("%s: requires executable stack"),
+ obj->name().c_str());
+ }
}
}
false, ORDER_RELRO,
true);
- this->dynamic_symbol_ =
- symtab->define_in_output_data("_DYNAMIC", NULL, Symbol_table::PREDEFINED,
- this->dynamic_section_, 0, 0,
- elfcpp::STT_OBJECT, elfcpp::STB_LOCAL,
- elfcpp::STV_HIDDEN, 0, false, false);
+ // A linker script may discard .dynamic, so check for NULL.
+ if (this->dynamic_section_ != NULL)
+ {
+ this->dynamic_symbol_ =
+ symtab->define_in_output_data("_DYNAMIC", NULL,
+ Symbol_table::PREDEFINED,
+ this->dynamic_section_, 0, 0,
+ elfcpp::STT_OBJECT, elfcpp::STB_LOCAL,
+ elfcpp::STV_HIDDEN, 0, false, false);
- this->dynamic_data_ = new Output_data_dynamic(&this->dynpool_);
+ this->dynamic_data_ = new Output_data_dynamic(&this->dynpool_);
- this->dynamic_section_->add_output_section_data(this->dynamic_data_);
+ this->dynamic_section_->add_output_section_data(this->dynamic_data_);
+ }
}
// For each output section whose name can be represented as C symbol,
Output_segment*
Layout::find_first_load_seg()
{
+ Output_segment* best = NULL;
for (Segment_list::const_iterator p = this->segment_list_.begin();
p != this->segment_list_.end();
++p)
&& ((*p)->flags() & elfcpp::PF_R) != 0
&& (parameters->options().omagic()
|| ((*p)->flags() & elfcpp::PF_W) == 0))
- return *p;
+ {
+ if (best == NULL || this->segment_precedes(*p, best))
+ best = *p;
+ }
}
+ if (best != NULL)
+ return best;
gold_assert(!this->script_options_->saw_phdrs_clause());
// If the user set the address of the text segment, that may not be
// compatible with putting the segment headers and file headers into
// that segment.
- if (parameters->options().user_set_Ttext())
- load_seg = NULL;
+ if (parameters->options().user_set_Ttext()
+ && parameters->options().Ttext() % target->common_pagesize() != 0)
+ {
+ load_seg = NULL;
+ phdr_seg = NULL;
+ }
gold_assert(phdr_seg == NULL
|| load_seg != NULL
}
// Read the sequence of input sections from the file specified with
-// --section-ordering-file.
+// option --section-ordering-file.
void
Layout::read_layout_from_file()
std::getline(in, line); // this chops off the trailing \n, if any
unsigned int position = 1;
+ this->set_section_ordering_specified();
while (in)
{
&versions);
// Create the .interp section to hold the name of the
- // interpreter, and put it in a PT_INTERP segment.
- if (!parameters->options().shared())
+ // interpreter, and put it in a PT_INTERP segment. Don't do it
+ // if we saw a .interp section in an input file.
+ if ((!parameters->options().shared()
+ || parameters->options().dynamic_linker() != NULL)
+ && this->interp_segment_ == NULL)
this->create_interp(target);
// Finish the .dynamic section to hold the dynamic data, and put
: new Output_segment_headers(this->segment_list_));
// Lay out the file header.
- Output_file_header* file_header
- = new Output_file_header(target, symtab, segment_headers,
- parameters->options().entry());
+ Output_file_header* file_header = new Output_file_header(target, symtab,
+ segment_headers);
this->special_output_list_.push_back(file_header);
if (segment_headers != NULL)
pass++;
}
while (target->may_relax()
- && target->relax(pass, input_objects, symtab, this));
+ && target->relax(pass, input_objects, symtab, this, task));
// Set the file offsets of all the non-data sections we've seen so
// far which don't have to wait for the input sections. We need
void
Layout::create_gold_note()
{
- if (parameters->options().relocatable())
+ if (parameters->options().relocatable()
+ || parameters->incremental_update())
return;
std::string desc = std::string("gold ") + gold::get_version_string();
// Return whether SEG1 should be before SEG2 in the output file. This
// is based entirely on the segment type and flags. When this is
-// called the segment addresses has normally not yet been set.
+// called the segment addresses have normally not yet been set.
bool
Layout::segment_precedes(const Output_segment* seg1,
return (flags1 & elfcpp::PF_R) == 0;
// We shouldn't get here--we shouldn't create segments which we
- // can't distinguish.
- gold_unreachable();
+ // can't distinguish. Unless of course we are using a weird linker
+ // script.
+ gold_assert(this->script_options_->saw_phdrs_clause());
+ return false;
}
// Increase OFF so that it is congruent to ADDR modulo ABI_PAGESIZE.
Layout::set_segment_offsets(const Target* target, Output_segment* load_seg,
unsigned int* pshndx)
{
- // Sort them into the final order.
- std::sort(this->segment_list_.begin(), this->segment_list_.end(),
- Layout::Compare_segments());
+ // Sort them into the final order. We use a stable sort so that we
+ // don't randomize the order of indistinguishable segments created
+ // by linker scripts.
+ std::stable_sort(this->segment_list_.begin(), this->segment_list_.end(),
+ Layout::Compare_segments(this));
// Find the PT_LOAD segments, and set their addresses and offsets
// and their section's addresses and offsets.
const bool check_sections = parameters->options().check_sections();
Output_segment* last_load_segment = NULL;
- bool was_readonly = false;
for (Segment_list::iterator p = this->segment_list_.begin();
p != this->segment_list_.end();
++p)
if (!are_addresses_set)
{
- // If the last segment was readonly, and this one is
- // not, then skip the address forward one page,
- // maintaining the same position within the page. This
- // lets us store both segments overlapping on a single
- // page in the file, but the loader will put them on
- // different pages in memory.
+ // Skip the address forward one page, maintaining the same
+ // position within the page. This lets us store both segments
+ // overlapping on a single page in the file, but the loader will
+ // put them on different pages in memory. We will revisit this
+ // decision once we know the size of the segment.
addr = align_address(addr, (*p)->maximum_alignment());
aligned_addr = addr;
- if (was_readonly && ((*p)->flags() & elfcpp::PF_W) != 0)
- {
- if ((addr & (abi_pagesize - 1)) != 0)
- addr = addr + abi_pagesize;
- }
+ if ((addr & (abi_pagesize - 1)) != 0)
+ addr = addr + abi_pagesize;
off = orig_off + ((addr - orig_addr) & (abi_pagesize - 1));
}
}
unsigned int shndx_hold = *pshndx;
+ bool has_relro = false;
uint64_t new_addr = (*p)->set_section_addresses(this, false, addr,
- increase_relro,
+ &increase_relro,
+ &has_relro,
&off, pshndx);
// Now that we know the size of this segment, we may be able
// to save a page in memory, at the cost of wasting some
// file space, by instead aligning to the start of a new
// page. Here we use the real machine page size rather than
- // the ABI mandated page size.
-
- if (!are_addresses_set && aligned_addr != addr)
+ // the ABI mandated page size. If the segment has been
+ // aligned so that the relro data ends at a page boundary,
+ // we do not try to realign it.
+
+ if (!are_addresses_set
+ && !has_relro
+ && aligned_addr != addr
+ && !parameters->incremental())
{
uint64_t first_off = (common_pagesize
- (aligned_addr
addr = align_address(addr, (*p)->maximum_alignment());
off = orig_off + ((addr - orig_addr) & (abi_pagesize - 1));
off = align_file_offset(off, addr, abi_pagesize);
+
+ increase_relro = this->increase_relro_;
+ if (this->script_options_->saw_sections_clause())
+ increase_relro = 0;
+ has_relro = false;
+
new_addr = (*p)->set_section_addresses(this, true, addr,
- increase_relro,
+ &increase_relro,
+ &has_relro,
&off, pshndx);
}
}
addr = new_addr;
- if (((*p)->flags() & elfcpp::PF_W) == 0)
- was_readonly = true;
-
// Implement --check-sections. We know that the segments
// are sorted by LMA.
if (check_sections && last_load_segment != NULL)
off_t
Layout::set_section_offsets(off_t off, Layout::Section_offset_pass pass)
{
+ off_t startoff = off;
+ off_t maxoff = off;
+
for (Section_list::iterator p = this->unattached_section_list_.begin();
p != this->unattached_section_list_.end();
++p)
|| (*p)->type() != elfcpp::SHT_STRTAB))
continue;
- off = align_address(off, (*p)->addralign());
- (*p)->set_file_offset(off);
- (*p)->finalize_data_size();
+ if (!parameters->incremental_update())
+ {
+ off = align_address(off, (*p)->addralign());
+ (*p)->set_file_offset(off);
+ (*p)->finalize_data_size();
+ }
+ else
+ {
+ // Incremental update: allocate file space from free list.
+ (*p)->pre_finalize_data_size();
+ off_t current_size = (*p)->current_data_size();
+ off = this->allocate(current_size, (*p)->addralign(), startoff);
+ if (off == -1)
+ {
+ if (is_debugging_enabled(DEBUG_INCREMENTAL))
+ this->free_list_.dump();
+ gold_assert((*p)->output_section() != NULL);
+ gold_fallback(_("out of patch space for section %s; "
+ "relink with --incremental-full"),
+ (*p)->output_section()->name());
+ }
+ (*p)->set_file_offset(off);
+ (*p)->finalize_data_size();
+ if ((*p)->data_size() > current_size)
+ {
+ gold_assert((*p)->output_section() != NULL);
+ gold_fallback(_("%s: section changed size; "
+ "relink with --incremental-full"),
+ (*p)->output_section()->name());
+ }
+ gold_debug(DEBUG_INCREMENTAL,
+ "set_section_offsets: %08lx %08lx %s",
+ static_cast<long>(off),
+ static_cast<long>((*p)->data_size()),
+ ((*p)->output_section() != NULL
+ ? (*p)->output_section()->name() : "(special)"));
+ }
+
off += (*p)->data_size();
+ if (off > maxoff)
+ maxoff = off;
// At this point the name must be set.
if (pass != STRTAB_AFTER_POSTPROCESSING_SECTIONS_PASS)
this->namepool_.add((*p)->name(), false, NULL);
}
- return off;
+ return maxoff;
}
// Set the section indexes of all the sections not associated with a
else
gold_unreachable();
- off_t off = *poff;
- off = align_address(off, align);
- off_t startoff = off;
+ // Compute file offsets relative to the start of the symtab section.
+ off_t off = 0;
// Save space for the dummy symbol at the start of the section. We
// never bother to write this out--it will just be left as zero.
}
unsigned int local_symcount = local_symbol_index;
- gold_assert(static_cast<off_t>(local_symcount * symsize) == off - startoff);
+ gold_assert(static_cast<off_t>(local_symcount * symsize) == off);
off_t dynoff;
size_t dyn_global_index;
== this->dynsym_section_->data_size() - locsize);
}
+ off_t global_off = off;
off = symtab->finalize(off, dynoff, dyn_global_index, dyncount,
&this->sympool_, &local_symcount);
false);
this->symtab_section_ = osymtab;
- Output_section_data* pos = new Output_data_fixed_space(off - startoff,
- align,
+ Output_section_data* pos = new Output_data_fixed_space(off, align,
"** symtab");
osymtab->add_output_section_data(pos);
elfcpp::SHT_SYMTAB_SHNDX, 0,
ORDER_INVALID, false);
- size_t symcount = (off - startoff) / symsize;
+ size_t symcount = off / symsize;
this->symtab_xindex_ = new Output_symtab_xindex(symcount);
osymtab_xindex->add_output_section_data(this->symtab_xindex_);
Output_section_data* pstr = new Output_data_strtab(&this->sympool_);
ostrtab->add_output_section_data(pstr);
- osymtab->set_file_offset(startoff);
+ off_t symtab_off;
+ if (!parameters->incremental_update())
+ symtab_off = align_address(*poff, align);
+ else
+ {
+ symtab_off = this->allocate(off, align, *poff);
+ if (off == -1)
+ gold_fallback(_("out of patch space for symbol table; "
+ "relink with --incremental-full"));
+ gold_debug(DEBUG_INCREMENTAL,
+ "create_symtab_sections: %08lx %08lx .symtab",
+ static_cast<long>(symtab_off),
+ static_cast<long>(off));
+ }
+
+ symtab->set_file_offset(symtab_off + global_off);
+ osymtab->set_file_offset(symtab_off);
osymtab->finalize_data_size();
osymtab->set_link_section(ostrtab);
osymtab->set_info(local_symcount);
osymtab->set_entsize(symsize);
- *poff = off;
+ if (symtab_off + off > *poff)
+ *poff = symtab_off + off;
}
}
&this->unattached_section_list_,
&this->namepool_,
shstrtab_section);
- off_t off = align_address(*poff, oshdrs->addralign());
+ off_t off;
+ if (!parameters->incremental_update())
+ off = align_address(*poff, oshdrs->addralign());
+ else
+ {
+ oshdrs->pre_finalize_data_size();
+ off = this->allocate(oshdrs->data_size(), oshdrs->addralign(), *poff);
+ if (off == -1)
+ gold_fallback(_("out of patch space for section header table; "
+ "relink with --incremental-full"));
+ gold_debug(DEBUG_INCREMENTAL,
+ "create_shdrs: %08lx %08lx (section header table)",
+ static_cast<long>(off),
+ static_cast<long>(off + oshdrs->data_size()));
+ }
oshdrs->set_address_and_file_offset(0, off);
off += oshdrs->data_size();
- *poff = off;
+ if (off > *poff)
+ *poff = off;
this->section_headers_ = oshdrs;
}
ORDER_DYNAMIC_LINKER,
false);
- Output_section_data* odata = new Output_data_fixed_space(index * symsize,
- align,
- "** dynsym");
- dynsym->add_output_section_data(odata);
+ // Check for NULL as a linker script may discard .dynsym.
+ if (dynsym != NULL)
+ {
+ Output_section_data* odata = new Output_data_fixed_space(index * symsize,
+ align,
+ "** dynsym");
+ dynsym->add_output_section_data(odata);
- dynsym->set_info(local_symcount);
- dynsym->set_entsize(symsize);
- dynsym->set_addralign(align);
+ dynsym->set_info(local_symcount);
+ dynsym->set_entsize(symsize);
+ dynsym->set_addralign(align);
- this->dynsym_section_ = dynsym;
+ this->dynsym_section_ = dynsym;
+ }
Output_data_dynamic* const odyn = this->dynamic_data_;
- odyn->add_section_address(elfcpp::DT_SYMTAB, dynsym);
- odyn->add_constant(elfcpp::DT_SYMENT, symsize);
+ if (odyn != NULL)
+ {
+ odyn->add_section_address(elfcpp::DT_SYMTAB, dynsym);
+ odyn->add_constant(elfcpp::DT_SYMENT, symsize);
+ }
// If there are more than SHN_LORESERVE allocated sections, we
// create a .dynsym_shndx section. It is possible that we don't
elfcpp::SHF_ALLOC,
false, ORDER_DYNAMIC_LINKER, false);
- this->dynsym_xindex_ = new Output_symtab_xindex(index);
+ if (dynsym_xindex != NULL)
+ {
+ this->dynsym_xindex_ = new Output_symtab_xindex(index);
- dynsym_xindex->add_output_section_data(this->dynsym_xindex_);
+ dynsym_xindex->add_output_section_data(this->dynsym_xindex_);
- dynsym_xindex->set_link_section(dynsym);
- dynsym_xindex->set_addralign(4);
- dynsym_xindex->set_entsize(4);
+ dynsym_xindex->set_link_section(dynsym);
+ dynsym_xindex->set_addralign(4);
+ dynsym_xindex->set_entsize(4);
- dynsym_xindex->set_after_input_sections();
+ dynsym_xindex->set_after_input_sections();
- // This tells the driver code to wait until the symbol table has
- // written out before writing out the postprocessing sections,
- // including the .dynsym_shndx section.
- this->any_postprocessing_sections_ = true;
+ // This tells the driver code to wait until the symbol table
+ // has written out before writing out the postprocessing
+ // sections, including the .dynsym_shndx section.
+ this->any_postprocessing_sections_ = true;
+ }
}
// Create the dynamic string table section.
ORDER_DYNAMIC_LINKER,
false);
- Output_section_data* strdata = new Output_data_strtab(&this->dynpool_);
- dynstr->add_output_section_data(strdata);
+ if (dynstr != NULL)
+ {
+ Output_section_data* strdata = new Output_data_strtab(&this->dynpool_);
+ dynstr->add_output_section_data(strdata);
- dynsym->set_link_section(dynstr);
- this->dynamic_section_->set_link_section(dynstr);
+ if (dynsym != NULL)
+ dynsym->set_link_section(dynstr);
+ if (this->dynamic_section_ != NULL)
+ this->dynamic_section_->set_link_section(dynstr);
- odyn->add_section_address(elfcpp::DT_STRTAB, dynstr);
- odyn->add_section_size(elfcpp::DT_STRSZ, dynstr);
+ if (odyn != NULL)
+ {
+ odyn->add_section_address(elfcpp::DT_STRTAB, dynstr);
+ odyn->add_section_size(elfcpp::DT_STRSZ, dynstr);
+ }
- *pdynstr = dynstr;
+ *pdynstr = dynstr;
+ }
// Create the hash tables.
hashlen,
align,
"** hash");
- hashsec->add_output_section_data(hashdata);
+ if (hashsec != NULL && hashdata != NULL)
+ hashsec->add_output_section_data(hashdata);
- hashsec->set_link_section(dynsym);
- hashsec->set_entsize(4);
+ if (hashsec != NULL)
+ {
+ if (dynsym != NULL)
+ hashsec->set_link_section(dynsym);
+ hashsec->set_entsize(4);
+ }
- odyn->add_section_address(elfcpp::DT_HASH, hashsec);
+ if (odyn != NULL)
+ odyn->add_section_address(elfcpp::DT_HASH, hashsec);
}
if (strcmp(parameters->options().hash_style(), "gnu") == 0
hashlen,
align,
"** hash");
- hashsec->add_output_section_data(hashdata);
+ if (hashsec != NULL && hashdata != NULL)
+ hashsec->add_output_section_data(hashdata);
- hashsec->set_link_section(dynsym);
+ if (hashsec != NULL)
+ {
+ if (dynsym != NULL)
+ hashsec->set_link_section(dynsym);
- // For a 64-bit target, the entries in .gnu.hash do not have a
- // uniform size, so we only set the entry size for a 32-bit
- // target.
- if (parameters->target().get_size() == 32)
- hashsec->set_entsize(4);
+ // For a 64-bit target, the entries in .gnu.hash do not have
+ // a uniform size, so we only set the entry size for a
+ // 32-bit target.
+ if (parameters->target().get_size() == 32)
+ hashsec->set_entsize(4);
- odyn->add_section_address(elfcpp::DT_GNU_HASH, hashsec);
+ if (odyn != NULL)
+ odyn->add_section_address(elfcpp::DT_GNU_HASH, hashsec);
+ }
}
}
Layout::assign_local_dynsym_offsets(const Input_objects* input_objects)
{
Output_section* dynsym = this->dynsym_section_;
- gold_assert(dynsym != NULL);
+ if (dynsym == NULL)
+ return;
off_t off = dynsym->offset();
ORDER_DYNAMIC_LINKER,
false);
- unsigned char* vbuf;
- unsigned int vsize;
- versions->symbol_section_contents<size, big_endian>(symtab, &this->dynpool_,
- local_symcount,
- dynamic_symbols,
- &vbuf, &vsize);
-
- Output_section_data* vdata = new Output_data_const_buffer(vbuf, vsize, 2,
- "** versions");
-
- vsec->add_output_section_data(vdata);
- vsec->set_entsize(2);
- vsec->set_link_section(this->dynsym_section_);
+ // Check for NULL since a linker script may discard this section.
+ if (vsec != NULL)
+ {
+ unsigned char* vbuf;
+ unsigned int vsize;
+ versions->symbol_section_contents<size, big_endian>(symtab,
+ &this->dynpool_,
+ local_symcount,
+ dynamic_symbols,
+ &vbuf, &vsize);
+
+ Output_section_data* vdata = new Output_data_const_buffer(vbuf, vsize, 2,
+ "** versions");
+
+ vsec->add_output_section_data(vdata);
+ vsec->set_entsize(2);
+ vsec->set_link_section(this->dynsym_section_);
+ }
Output_data_dynamic* const odyn = this->dynamic_data_;
- odyn->add_section_address(elfcpp::DT_VERSYM, vsec);
+ if (odyn != NULL && vsec != NULL)
+ odyn->add_section_address(elfcpp::DT_VERSYM, vsec);
if (versions->any_defs())
{
Output_section* vdsec;
- vdsec= this->choose_output_section(NULL, ".gnu.version_d",
- elfcpp::SHT_GNU_verdef,
- elfcpp::SHF_ALLOC,
- false, ORDER_DYNAMIC_LINKER, false);
+ vdsec = this->choose_output_section(NULL, ".gnu.version_d",
+ elfcpp::SHT_GNU_verdef,
+ elfcpp::SHF_ALLOC,
+ false, ORDER_DYNAMIC_LINKER, false);
- unsigned char* vdbuf;
- unsigned int vdsize;
- unsigned int vdentries;
- versions->def_section_contents<size, big_endian>(&this->dynpool_, &vdbuf,
- &vdsize, &vdentries);
+ if (vdsec != NULL)
+ {
+ unsigned char* vdbuf;
+ unsigned int vdsize;
+ unsigned int vdentries;
+ versions->def_section_contents<size, big_endian>(&this->dynpool_,
+ &vdbuf, &vdsize,
+ &vdentries);
- Output_section_data* vddata =
- new Output_data_const_buffer(vdbuf, vdsize, 4, "** version defs");
+ Output_section_data* vddata =
+ new Output_data_const_buffer(vdbuf, vdsize, 4, "** version defs");
- vdsec->add_output_section_data(vddata);
- vdsec->set_link_section(dynstr);
- vdsec->set_info(vdentries);
+ vdsec->add_output_section_data(vddata);
+ vdsec->set_link_section(dynstr);
+ vdsec->set_info(vdentries);
- odyn->add_section_address(elfcpp::DT_VERDEF, vdsec);
- odyn->add_constant(elfcpp::DT_VERDEFNUM, vdentries);
+ if (odyn != NULL)
+ {
+ odyn->add_section_address(elfcpp::DT_VERDEF, vdsec);
+ odyn->add_constant(elfcpp::DT_VERDEFNUM, vdentries);
+ }
+ }
}
if (versions->any_needs())
elfcpp::SHF_ALLOC,
false, ORDER_DYNAMIC_LINKER, false);
- unsigned char* vnbuf;
- unsigned int vnsize;
- unsigned int vnentries;
- versions->need_section_contents<size, big_endian>(&this->dynpool_,
- &vnbuf, &vnsize,
- &vnentries);
+ if (vnsec != NULL)
+ {
+ unsigned char* vnbuf;
+ unsigned int vnsize;
+ unsigned int vnentries;
+ versions->need_section_contents<size, big_endian>(&this->dynpool_,
+ &vnbuf, &vnsize,
+ &vnentries);
- Output_section_data* vndata =
- new Output_data_const_buffer(vnbuf, vnsize, 4, "** version refs");
+ Output_section_data* vndata =
+ new Output_data_const_buffer(vnbuf, vnsize, 4, "** version refs");
- vnsec->add_output_section_data(vndata);
- vnsec->set_link_section(dynstr);
- vnsec->set_info(vnentries);
+ vnsec->add_output_section_data(vndata);
+ vnsec->set_link_section(dynstr);
+ vnsec->set_info(vnentries);
- odyn->add_section_address(elfcpp::DT_VERNEED, vnsec);
- odyn->add_constant(elfcpp::DT_VERNEEDNUM, vnentries);
+ if (odyn != NULL)
+ {
+ odyn->add_section_address(elfcpp::DT_VERNEED, vnsec);
+ odyn->add_constant(elfcpp::DT_VERNEEDNUM, vnentries);
+ }
+ }
}
}
void
Layout::create_interp(const Target* target)
{
+ gold_assert(this->interp_segment_ == NULL);
+
const char* interp = parameters->options().dynamic_linker();
if (interp == NULL)
{
elfcpp::SHF_ALLOC,
false, ORDER_INTERP,
false);
- osec->add_output_section_data(odata);
-
- if (!this->script_options_->saw_phdrs_clause())
- {
- Output_segment* oseg = this->make_output_segment(elfcpp::PT_INTERP,
- elfcpp::PF_R);
- oseg->add_output_section_to_nonload(osec, elfcpp::PF_R);
- }
+ if (osec != NULL)
+ osec->add_output_section_data(odata);
}
// Add dynamic tags for the PLT and the dynamic relocs. This is
// some targets have multiple reloc sections in PLT_REL.
// If DYN_REL is not NULL, it is used for DT_REL/DT_RELA,
-// DT_RELSZ/DT_RELASZ, DT_RELENT/DT_RELAENT.
+// DT_RELSZ/DT_RELASZ, DT_RELENT/DT_RELAENT. Again we use the output
+// section.
// If ADD_DEBUG is true, we add a DT_DEBUG entry when generating an
// executable.
if (dyn_rel != NULL && dyn_rel->output_section() != NULL)
{
odyn->add_section_address(use_rel ? elfcpp::DT_REL : elfcpp::DT_RELA,
- dyn_rel);
- if (plt_rel != NULL && dynrel_includes_plt)
+ dyn_rel->output_section());
+ if (plt_rel != NULL
+ && plt_rel->output_section() != NULL
+ && dynrel_includes_plt)
odyn->add_section_size(use_rel ? elfcpp::DT_RELSZ : elfcpp::DT_RELASZ,
- dyn_rel, plt_rel);
+ dyn_rel->output_section(),
+ plt_rel->output_section());
else
odyn->add_section_size(use_rel ? elfcpp::DT_RELSZ : elfcpp::DT_RELASZ,
- dyn_rel);
+ dyn_rel->output_section());
const int size = parameters->target().get_size();
elfcpp::DT rel_tag;
int rel_size;
Layout::finish_dynamic_section(const Input_objects* input_objects,
const Symbol_table* symtab)
{
- if (!this->script_options_->saw_phdrs_clause())
+ if (!this->script_options_->saw_phdrs_clause()
+ && this->dynamic_section_ != NULL)
{
Output_segment* oseg = this->make_output_segment(elfcpp::PT_DYNAMIC,
(elfcpp::PF_R
}
Output_data_dynamic* const odyn = this->dynamic_data_;
+ if (odyn == NULL)
+ return;
for (Input_objects::Dynobj_iterator p = input_objects->dynobj_begin();
p != input_objects->dynobj_end();
++p)
{
- if (!(*p)->is_needed()
- && (*p)->input_file()->options().as_needed())
+ if (!(*p)->is_needed() && (*p)->as_needed())
{
// This dynamic object was linked with --as-needed, but it
// is not needed.
p != this->segment_list_.end();
++p)
{
- if (((*p)->flags() & elfcpp::PF_W) == 0
+ if ((*p)->type() == elfcpp::PT_LOAD
+ && ((*p)->flags() & elfcpp::PF_W) == 0
&& (*p)->has_dynamic_reloc())
{
have_textrel = true;
{
if (((*p)->flags() & elfcpp::SHF_ALLOC) != 0
&& ((*p)->flags() & elfcpp::SHF_WRITE) == 0
- && ((*p)->has_dynamic_reloc()))
+ && (*p)->has_dynamic_reloc())
{
have_textrel = true;
break;
}
}
- // Add a DT_FLAGS entry. We add it even if no flags are set so that
- // post-link tools can easily modify these flags if desired.
+ if (parameters->options().filter() != NULL)
+ odyn->add_string(elfcpp::DT_FILTER, parameters->options().filter());
+ if (parameters->options().any_auxiliary())
+ {
+ for (options::String_set::const_iterator p =
+ parameters->options().auxiliary_begin();
+ p != parameters->options().auxiliary_end();
+ ++p)
+ odyn->add_string(elfcpp::DT_AUXILIARY, *p);
+ }
+
+ // Add a DT_FLAGS entry if necessary.
unsigned int flags = 0;
if (have_textrel)
{
}
if (parameters->options().now())
flags |= elfcpp::DF_BIND_NOW;
- odyn->add_constant(elfcpp::DT_FLAGS, flags);
+ if (flags != 0)
+ odyn->add_constant(elfcpp::DT_FLAGS, flags);
flags = 0;
if (parameters->options().initfirst())
flags |= elfcpp::DF_1_ORIGIN;
if (parameters->options().now())
flags |= elfcpp::DF_1_NOW;
- if (flags)
+ if (parameters->options().Bgroup())
+ flags |= elfcpp::DF_1_GROUP;
+ if (flags != 0)
odyn->add_constant(elfcpp::DT_FLAGS_1, flags);
}
Layout::set_dynamic_symbol_size(const Symbol_table* symtab)
{
Output_data_dynamic* const odyn = this->dynamic_data_;
+ if (odyn == NULL)
+ return;
odyn->finalize_data_size();
+ if (this->dynamic_symbol_ == NULL)
+ return;
off_t data_size = odyn->data_size();
const int size = parameters->target().get_size();
if (size == 32)
const Layout::Section_name_mapping Layout::section_name_mapping[] =
{
MAPPING_INIT(".text.", ".text"),
- MAPPING_INIT(".ctors.", ".ctors"),
- MAPPING_INIT(".dtors.", ".dtors"),
MAPPING_INIT(".rodata.", ".rodata"),
MAPPING_INIT(".data.rel.ro.local", ".data.rel.ro.local"),
MAPPING_INIT(".data.rel.ro", ".data.rel.ro"),
// length of NAME.
const char*
-Layout::output_section_name(const char* name, size_t* plen)
+Layout::output_section_name(const Relobj* relobj, const char* name,
+ size_t* plen)
{
// gcc 4.3 generates the following sorts of section names when it
// needs a section name specific to a function:
}
}
- // Compressed debug sections should be mapped to the corresponding
- // uncompressed section.
- if (is_compressed_debug_section(name))
+ // As an additional complication, .ctors sections are output in
+ // either .ctors or .init_array sections, and .dtors sections are
+ // output in either .dtors or .fini_array sections.
+ if (is_prefix_of(".ctors.", name) || is_prefix_of(".dtors.", name))
{
- size_t len = strlen(name);
- char* uncompressed_name = new char[len];
- uncompressed_name[0] = '.';
- gold_assert(name[0] == '.' && name[1] == 'z');
- strncpy(&uncompressed_name[1], &name[2], len - 2);
- uncompressed_name[len - 1] = '\0';
- *plen = len - 1;
- return uncompressed_name;
+ if (parameters->options().ctors_in_init_array())
+ {
+ *plen = 11;
+ return name[1] == 'c' ? ".init_array" : ".fini_array";
+ }
+ else
+ {
+ *plen = 6;
+ return name[1] == 'c' ? ".ctors" : ".dtors";
+ }
+ }
+ if (parameters->options().ctors_in_init_array()
+ && (strcmp(name, ".ctors") == 0 || strcmp(name, ".dtors") == 0))
+ {
+ // To make .init_array/.fini_array work with gcc we must exclude
+ // .ctors and .dtors sections from the crtbegin and crtend
+ // files.
+ if (relobj == NULL
+ || (!Layout::match_file_name(relobj, "crtbegin")
+ && !Layout::match_file_name(relobj, "crtend")))
+ {
+ *plen = 11;
+ return name[1] == 'c' ? ".init_array" : ".fini_array";
+ }
}
return name;
}
+// Return true if RELOBJ is an input file whose base name matches
+// FILE_NAME. The base name must have an extension of ".o", and must
+// be exactly FILE_NAME.o or FILE_NAME, one character, ".o". This is
+// to match crtbegin.o as well as crtbeginS.o without getting confused
+// by other possibilities. Overall matching the file name this way is
+// a dreadful hack, but the GNU linker does it in order to better
+// support gcc, and we need to be compatible.
+
+bool
+Layout::match_file_name(const Relobj* relobj, const char* match)
+{
+ const std::string& file_name(relobj->name());
+ const char* base_name = lbasename(file_name.c_str());
+ size_t match_len = strlen(match);
+ if (strncmp(base_name, match, match_len) != 0)
+ return false;
+ size_t base_len = strlen(base_name);
+ if (base_len != match_len + 2 && base_len != match_len + 3)
+ return false;
+ return memcmp(base_name + base_len - 2, ".o", 2) == 0;
+}
+
// Check if a comdat group or .gnu.linkonce section with the given
// NAME is selected for the link. If there is already a section,
// *KEPT_SECTION is set to point to the existing section and the
this->tls_segment_ = oseg;
else if (type == elfcpp::PT_GNU_RELRO)
this->relro_segment_ = oseg;
+ else if (type == elfcpp::PT_INTERP)
+ this->interp_segment_ = oseg;
return oseg;
}
+// Return the file offset of the normal symbol table.
+
+off_t
+Layout::symtab_section_offset() const
+{
+ if (this->symtab_section_ != NULL)
+ return this->symtab_section_->offset();
+ return 0;
+}
+
+// Return the section index of the normal symbol table. It may have
+// been stripped by the -s/--strip-all option.
+
+unsigned int
+Layout::symtab_section_shndx() const
+{
+ if (this->symtab_section_ != NULL)
+ return this->symtab_section_->out_shndx();
+ return 0;
+}
+
// Write out the Output_sections. Most won't have anything to write,
// since most of the data will come from input sections which are
// handled elsewhere. But some Output_sections do have Output_data.
#ifdef HAVE_TARGET_32_LITTLE
template
Output_section*
-Layout::layout<32, false>(Sized_relobj<32, false>* object, unsigned int shndx,
+Layout::init_fixed_output_section<32, false>(
+ const char* name,
+ elfcpp::Shdr<32, false>& shdr);
+#endif
+
+#ifdef HAVE_TARGET_32_BIG
+template
+Output_section*
+Layout::init_fixed_output_section<32, true>(
+ const char* name,
+ elfcpp::Shdr<32, true>& shdr);
+#endif
+
+#ifdef HAVE_TARGET_64_LITTLE
+template
+Output_section*
+Layout::init_fixed_output_section<64, false>(
+ const char* name,
+ elfcpp::Shdr<64, false>& shdr);
+#endif
+
+#ifdef HAVE_TARGET_64_BIG
+template
+Output_section*
+Layout::init_fixed_output_section<64, true>(
+ const char* name,
+ elfcpp::Shdr<64, true>& shdr);
+#endif
+
+#ifdef HAVE_TARGET_32_LITTLE
+template
+Output_section*
+Layout::layout<32, false>(Sized_relobj_file<32, false>* object,
+ unsigned int shndx,
const char* name,
const elfcpp::Shdr<32, false>& shdr,
unsigned int, unsigned int, off_t*);
#ifdef HAVE_TARGET_32_BIG
template
Output_section*
-Layout::layout<32, true>(Sized_relobj<32, true>* object, unsigned int shndx,
+Layout::layout<32, true>(Sized_relobj_file<32, true>* object,
+ unsigned int shndx,
const char* name,
const elfcpp::Shdr<32, true>& shdr,
unsigned int, unsigned int, off_t*);
#ifdef HAVE_TARGET_64_LITTLE
template
Output_section*
-Layout::layout<64, false>(Sized_relobj<64, false>* object, unsigned int shndx,
+Layout::layout<64, false>(Sized_relobj_file<64, false>* object,
+ unsigned int shndx,
const char* name,
const elfcpp::Shdr<64, false>& shdr,
unsigned int, unsigned int, off_t*);
#ifdef HAVE_TARGET_64_BIG
template
Output_section*
-Layout::layout<64, true>(Sized_relobj<64, true>* object, unsigned int shndx,
+Layout::layout<64, true>(Sized_relobj_file<64, true>* object,
+ unsigned int shndx,
const char* name,
const elfcpp::Shdr<64, true>& shdr,
unsigned int, unsigned int, off_t*);
#ifdef HAVE_TARGET_32_LITTLE
template
Output_section*
-Layout::layout_reloc<32, false>(Sized_relobj<32, false>* object,
+Layout::layout_reloc<32, false>(Sized_relobj_file<32, false>* object,
unsigned int reloc_shndx,
const elfcpp::Shdr<32, false>& shdr,
Output_section* data_section,
#ifdef HAVE_TARGET_32_BIG
template
Output_section*
-Layout::layout_reloc<32, true>(Sized_relobj<32, true>* object,
+Layout::layout_reloc<32, true>(Sized_relobj_file<32, true>* object,
unsigned int reloc_shndx,
const elfcpp::Shdr<32, true>& shdr,
Output_section* data_section,
#ifdef HAVE_TARGET_64_LITTLE
template
Output_section*
-Layout::layout_reloc<64, false>(Sized_relobj<64, false>* object,
+Layout::layout_reloc<64, false>(Sized_relobj_file<64, false>* object,
unsigned int reloc_shndx,
const elfcpp::Shdr<64, false>& shdr,
Output_section* data_section,
#ifdef HAVE_TARGET_64_BIG
template
Output_section*
-Layout::layout_reloc<64, true>(Sized_relobj<64, true>* object,
+Layout::layout_reloc<64, true>(Sized_relobj_file<64, true>* object,
unsigned int reloc_shndx,
const elfcpp::Shdr<64, true>& shdr,
Output_section* data_section,
template
void
Layout::layout_group<32, false>(Symbol_table* symtab,
- Sized_relobj<32, false>* object,
+ Sized_relobj_file<32, false>* object,
unsigned int,
const char* group_section_name,
const char* signature,
template
void
Layout::layout_group<32, true>(Symbol_table* symtab,
- Sized_relobj<32, true>* object,
+ Sized_relobj_file<32, true>* object,
unsigned int,
const char* group_section_name,
const char* signature,
template
void
Layout::layout_group<64, false>(Symbol_table* symtab,
- Sized_relobj<64, false>* object,
+ Sized_relobj_file<64, false>* object,
unsigned int,
const char* group_section_name,
const char* signature,
template
void
Layout::layout_group<64, true>(Symbol_table* symtab,
- Sized_relobj<64, true>* object,
+ Sized_relobj_file<64, true>* object,
unsigned int,
const char* group_section_name,
const char* signature,
#ifdef HAVE_TARGET_32_LITTLE
template
Output_section*
-Layout::layout_eh_frame<32, false>(Sized_relobj<32, false>* object,
+Layout::layout_eh_frame<32, false>(Sized_relobj_file<32, false>* object,
const unsigned char* symbols,
off_t symbols_size,
const unsigned char* symbol_names,
#ifdef HAVE_TARGET_32_BIG
template
Output_section*
-Layout::layout_eh_frame<32, true>(Sized_relobj<32, true>* object,
- const unsigned char* symbols,
- off_t symbols_size,
+Layout::layout_eh_frame<32, true>(Sized_relobj_file<32, true>* object,
+ const unsigned char* symbols,
+ off_t symbols_size,
const unsigned char* symbol_names,
off_t symbol_names_size,
unsigned int shndx,
#ifdef HAVE_TARGET_64_LITTLE
template
Output_section*
-Layout::layout_eh_frame<64, false>(Sized_relobj<64, false>* object,
+Layout::layout_eh_frame<64, false>(Sized_relobj_file<64, false>* object,
const unsigned char* symbols,
off_t symbols_size,
const unsigned char* symbol_names,
#ifdef HAVE_TARGET_64_BIG
template
Output_section*
-Layout::layout_eh_frame<64, true>(Sized_relobj<64, true>* object,
- const unsigned char* symbols,
- off_t symbols_size,
+Layout::layout_eh_frame<64, true>(Sized_relobj_file<64, true>* object,
+ const unsigned char* symbols,
+ off_t symbols_size,
const unsigned char* symbol_names,
off_t symbol_names_size,
unsigned int shndx,
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