class Input_section_info
{
public:
- Input_section_info(const Output_section::Simple_input_section& input_section)
- : input_section_(input_section), section_name_(),
+ Input_section_info(const Output_section::Simple_input_section& inputsection)
+ : input_section_(inputsection), section_name_(),
size_(0), addralign_(1)
{ }
// Set the section name.
void
- set_section_name(const std::string name)
- { this->section_name_ = name; }
+ set_section_name(const std::string aname)
+ { this->section_name_ = aname; }
// Return the section size.
uint64_t
// Set the section size.
void
- set_size(uint64_t size)
- { this->size_ = size; }
+ set_size(uint64_t sec_size)
+ { this->size_ = sec_size; }
// Return the address alignment.
uint64_t
// Set the address alignment.
void
- set_addralign(uint64_t addralign)
- { this->addralign_ = addralign; }
+ set_addralign(uint64_t addr_align)
+ { this->addralign_ = addr_align; }
private:
// Input section, can be a relaxed section.
isi.set_section_name(relobj->section_name(shndx));
if (p->is_relaxed_input_section())
- isi.set_size(p->relaxed_input_section()->data_size());
+ {
+ // We use current data size because relxed section sizes may not
+ // have finalized yet.
+ isi.set_size(p->relaxed_input_section()->current_data_size());
+ isi.set_addralign(p->relaxed_input_section()->addralign());
+ }
else
- isi.set_size(relobj->section_size(shndx));
- isi.set_addralign(relobj->section_addralign(shndx));
+ {
+ isi.set_size(relobj->section_size(shndx));
+ isi.set_addralign(relobj->section_addralign(shndx));
+ }
}
if (!this->match_file_name(relobj->name().c_str()))
// sections are otherwise equal. Add each input section to the
// output section.
+ uint64_t dot = *dot_value;
for (size_t i = 0; i < input_pattern_count; ++i)
{
if (matching_sections[i].empty())
Input_section_sorter(this->filename_sort_,
isp.sort));
- for (std::vector<Input_section_info>::const_iterator p =
+ for (std::vector<Input_section_info>::const_iterator q =
matching_sections[i].begin();
- p != matching_sections[i].end();
- ++p)
+ q != matching_sections[i].end();
+ ++q)
{
- uint64_t this_subalign = p->addralign();
+ uint64_t this_subalign = q->addralign();
if (this_subalign < subalign)
this_subalign = subalign;
- uint64_t address = align_address(*dot_value, this_subalign);
+ uint64_t address = align_address(dot, this_subalign);
- if (address > *dot_value && !fill->empty())
+ if (address > dot && !fill->empty())
{
section_size_type length =
- convert_to_section_size_type(address - *dot_value);
+ convert_to_section_size_type(address - dot);
std::string this_fill = this->get_fill_string(fill, length);
Output_section_data* posd = new Output_data_const(this_fill, 0);
output_section->add_output_section_data(posd);
layout->new_output_section_data_from_script(posd);
}
- output_section->add_input_section_for_script(p->input_section(),
- p->size(),
+ output_section->add_input_section_for_script(q->input_section(),
+ q->size(),
this_subalign);
- *dot_value = address + p->size();
+ dot = address + q->size();
}
}
+ // An SHF_TLS/SHT_NOBITS section does not take up any
+ // address space.
+ if (output_section == NULL
+ || (output_section->flags() & elfcpp::SHF_TLS) == 0
+ || output_section->type() != elfcpp::SHT_NOBITS)
+ *dot_value = dot;
+
this->final_dot_value_ = *dot_value;
this->final_dot_section_ = *dot_section;
}
Output_section_definition::get_output_section_info(const char* name,
uint64_t* address,
uint64_t* load_address,
- uint64_t* addralign,
+ uint64_t* addr_align,
uint64_t* size) const
{
if (this->name_ != name)
*load_address = this->output_section_->load_address();
else
*load_address = *address;
- *addralign = this->output_section_->addralign();
+ *addr_align = this->output_section_->addralign();
*size = this->output_section_->current_data_size();
}
else
{
*address = this->evaluated_address_;
*load_address = this->evaluated_load_address_;
- *addralign = this->evaluated_addralign_;
+ *addr_align = this->evaluated_addralign_;
*size = 0;
}
p != input_sections.end();
++p)
{
- uint64_t addralign;
+ uint64_t addr_align;
uint64_t size;
// We know what are single-threaded, so it is OK to lock the
{
const Task* task = reinterpret_cast<const Task*>(-1);
Task_lock_obj<Object> tl(task, p->relobj());
- addralign = p->relobj()->section_addralign(p->shndx());
+ addr_align = p->relobj()->section_addralign(p->shndx());
if (p->is_relaxed_input_section())
- size = p->relaxed_input_section()->data_size();
+ // We use current data size because relxed section sizes may not
+ // have finalized yet.
+ size = p->relaxed_input_section()->current_data_size();
else
size = p->relobj()->section_size(p->shndx());
}
- address = align_address(address, addralign);
- this->os_->add_input_section_for_script(*p, size, addralign);
+ address = align_address(address, addr_align);
+ this->os_->add_input_section_for_script(*p, size, addr_align);
address += size;
}
- if (!have_load_address)
- *load_address = address;
- else
- *load_address += address - *dot_value;
+ // An SHF_TLS/SHT_NOBITS section does not take up any address space.
+ if (this->os_ == NULL
+ || (this->os_->flags() & elfcpp::SHF_TLS) == 0
+ || this->os_->type() != elfcpp::SHT_NOBITS)
+ {
+ if (!have_load_address)
+ *load_address = address;
+ else
+ *load_address += address - *dot_value;
- *dot_value = address;
+ *dot_value = address;
+ }
}
// Get the list of segments to use for an allocated section when using
class Phdrs_element
{
public:
- Phdrs_element(const char* name, size_t namelen, unsigned int type,
- bool includes_filehdr, bool includes_phdrs,
+ Phdrs_element(const char* aname, size_t namelen, unsigned int atype,
+ bool include_filehdr, bool include_phdrs,
bool is_flags_valid, unsigned int flags,
- Expression* load_address)
- : name_(name, namelen), type_(type), includes_filehdr_(includes_filehdr),
- includes_phdrs_(includes_phdrs), is_flags_valid_(is_flags_valid),
- flags_(flags), load_address_(load_address), load_address_value_(0),
+ Expression* aload_address)
+ : name_(aname, namelen), type_(atype), includes_filehdr_(include_filehdr),
+ includes_phdrs_(include_phdrs), is_flags_valid_(is_flags_valid),
+ flags_(flags), load_address_(aload_address), load_address_value_(0),
segment_(NULL)
{ }
// Evaluate the load address expression if there is one.
void
- eval_load_address(Symbol_table* symtab, Layout* layout)
+ eval_load_address(Symbol_table* symtab, Layout* alayout)
{
if (this->load_address_ != NULL)
- this->load_address_value_ = this->load_address_->eval(symtab, layout,
+ this->load_address_value_ = this->load_address_->eval(symtab, alayout,
true);
}
orphan_section_placement_(NULL),
data_segment_align_start_(),
saw_data_segment_align_(false),
- saw_relro_end_(false)
+ saw_relro_end_(false),
+ saw_segment_start_expression_(false)
{
}
this->output_section_->add_dot_assignment(val);
else
{
+ // The GNU linker permits assignments to . to appears outside of
+ // a SECTIONS clause, and treats it as appearing inside, so
+ // sections_elements_ may be NULL here.
+ if (this->sections_elements_ == NULL)
+ {
+ this->sections_elements_ = new Sections_elements;
+ this->saw_sections_clause_ = true;
+ }
+
Sections_element* p = new Sections_element_dot_assignment(val);
this->sections_elements_->push_back(p);
}
// For a relocatable link, we implicitly set dot to zero.
uint64_t dot_value = 0;
uint64_t load_address = 0;
+
+ // Check to see if we want to use any of -Ttext, -Tdata and -Tbss options
+ // to set section addresses. If the script has any SEGMENT_START
+ // expression, we do not set the section addresses.
+ bool use_tsection_options =
+ (!this->saw_segment_start_expression_
+ && (parameters->options().user_set_Ttext()
+ || parameters->options().user_set_Tdata()
+ || parameters->options().user_set_Tbss()));
+
for (Sections_elements::iterator p = this->sections_elements_->begin();
p != this->sections_elements_->end();
++p)
- (*p)->set_section_addresses(symtab, layout, &dot_value, &load_address);
+ {
+ Output_section* os = (*p)->get_output_section();
+
+ // Handle -Ttext, -Tdata and -Tbss options. We do this by looking for
+ // the special sections by names and doing dot assignments.
+ if (use_tsection_options
+ && os != NULL
+ && (os->flags() & elfcpp::SHF_ALLOC) != 0)
+ {
+ uint64_t new_dot_value = dot_value;
+
+ if (parameters->options().user_set_Ttext()
+ && strcmp(os->name(), ".text") == 0)
+ new_dot_value = parameters->options().Ttext();
+ else if (parameters->options().user_set_Tdata()
+ && strcmp(os->name(), ".data") == 0)
+ new_dot_value = parameters->options().Tdata();
+ else if (parameters->options().user_set_Tbss()
+ && strcmp(os->name(), ".bss") == 0)
+ new_dot_value = parameters->options().Tbss();
+
+ // Update dot and load address if necessary.
+ if (new_dot_value < dot_value)
+ gold_error(_("dot may not move backward"));
+ else if (new_dot_value != dot_value)
+ {
+ dot_value = new_dot_value;
+ load_address = new_dot_value;
+ }
+ }
+
+ (*p)->set_section_addresses(symtab, layout, &dot_value, &load_address);
+ }
if (this->phdrs_elements_ != NULL)
{
is_current_seg_readonly = true;
}
- current_seg->add_output_section(*p, seg_flags);
+ current_seg->add_output_section(*p, seg_flags, false);
if (((*p)->flags() & elfcpp::SHF_WRITE) != 0)
is_current_seg_readonly = false;
Layout::section_flags_to_segment((*p)->flags());
Output_segment* oseg = layout->make_output_segment(elfcpp::PT_NOTE,
seg_flags);
- oseg->add_output_section(*p, seg_flags);
+ oseg->add_output_section(*p, seg_flags, false);
// Incorporate any subsequent SHT_NOTE sections, in the
// hopes that the script is sensible.
&& (*pnext)->type() == elfcpp::SHT_NOTE)
{
seg_flags = Layout::section_flags_to_segment((*pnext)->flags());
- oseg->add_output_section(*pnext, seg_flags);
+ oseg->add_output_section(*pnext, seg_flags, false);
p = pnext;
++pnext;
}
Layout::section_flags_to_segment((*p)->flags());
Output_segment* oseg = layout->make_output_segment(elfcpp::PT_TLS,
seg_flags);
- oseg->add_output_section(*p, seg_flags);
+ oseg->add_output_section(*p, seg_flags, false);
Layout::Section_list::const_iterator pnext = p + 1;
while (pnext != sections->end()
&& ((*pnext)->flags() & elfcpp::SHF_TLS) != 0)
{
seg_flags = Layout::section_flags_to_segment((*pnext)->flags());
- oseg->add_output_section(*pnext, seg_flags);
+ oseg->add_output_section(*pnext, seg_flags, false);
p = pnext;
++pnext;
}
elfcpp::Elf_Word seg_flags =
Layout::section_flags_to_segment(os->flags());
- r->second->add_output_section(os, seg_flags);
+ r->second->add_output_section(os, seg_flags, false);
if (r->second->type() == elfcpp::PT_LOAD)
{
bool
Script_sections::get_output_section_info(const char* name, uint64_t* address,
uint64_t* load_address,
- uint64_t* addralign,
+ uint64_t* addr_align,
uint64_t* size) const
{
if (!this->saw_sections_clause_)
for (Sections_elements::const_iterator p = this->sections_elements_->begin();
p != this->sections_elements_->end();
++p)
- if ((*p)->get_output_section_info(name, address, load_address, addralign,
+ if ((*p)->get_output_section_info(name, address, load_address, addr_align,
size))
return true;
return false;
projects / deliverable / binutils-gdb.git / blobdiff