// sparc.cc -- sparc target support for gold.
-// Copyright 2008 Free Software Foundation, Inc.
+// Copyright 2008, 2009 Free Software Foundation, Inc.
// Written by David S. Miller <davem@davemloft.net>.
// This file is part of gold.
{
}
+ // Process the relocations to determine unreferenced sections for
+ // garbage collection.
+ void
+ gc_process_relocs(const General_options& options,
+ Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_symbols);
+
// Scan the relocations to look for symbol adjustments.
void
scan_relocs(const General_options& options,
return strcmp(sym->name(), "___tls_get_addr") == 0;
}
+ // Return whether there is a GOT section.
+ bool
+ has_got_section() const
+ { return this->got_ != NULL; }
+
// Return the size of the GOT section.
section_size_type
got_size()
// any warnings about this relocation.
inline bool
relocate(const Relocate_info<size, big_endian>*, Target_sparc*,
- size_t relnum, const elfcpp::Rela<size, big_endian>&,
+ Output_section*, size_t relnum,
+ const elfcpp::Rela<size, big_endian>&,
unsigned int r_type, const Sized_symbol<size>*,
const Symbol_value<size>*,
unsigned char*,
case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX:
+ case elfcpp::R_SPARC_TLS_IE_ADD:
// These are Initial-Exec relocs which get the thread offset
// from the GOT. If we know that we are linking against the
// local symbol, we can switch to Local-Exec, which links the
// error per object file.
if (this->issued_non_pic_error_)
return;
+ gold_assert(parameters->options().output_is_position_independent());
object->error(_("requires unsupported dynamic reloc; "
"recompile with -fPIC"));
this->issued_non_pic_error_ = true;
case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX:
+ case elfcpp::R_SPARC_TLS_IE_ADD:
case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec
case elfcpp::R_SPARC_TLS_LE_LOX10:
{
case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX:
+ case elfcpp::R_SPARC_TLS_IE_ADD:
layout->set_has_static_tls();
if (optimized_type == tls::TLSOPT_NONE)
{
{
unsigned int orig_r_type = r_type;
+ // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got
+ // section. We check here to avoid creating a dynamic reloc against
+ // _GLOBAL_OFFSET_TABLE_.
+ if (!target->has_got_section()
+ && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0)
+ target->got_section(symtab, layout);
+
r_type &= 0xff;
switch (r_type)
{
case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX:
+ case elfcpp::R_SPARC_TLS_IE_ADD:
{
const bool is_final = gsym->final_value_is_known();
const tls::Tls_optimization optimized_type
case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX:
+ case elfcpp::R_SPARC_TLS_IE_ADD:
layout->set_has_static_tls();
if (optimized_type == tls::TLSOPT_NONE)
{
}
}
+// Process relocations for gc.
+
+template<int size, bool big_endian>
+void
+Target_sparc<size, big_endian>::gc_process_relocs(
+ const General_options& options,
+ Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_symbols)
+{
+ typedef Target_sparc<size, big_endian> Sparc;
+ typedef typename Target_sparc<size, big_endian>::Scan Scan;
+
+ gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>(
+ options,
+ symtab,
+ layout,
+ this,
+ object,
+ data_shndx,
+ prelocs,
+ reloc_count,
+ output_section,
+ needs_special_offset_handling,
+ local_symbol_count,
+ plocal_symbols);
+}
+
// Scan relocations for a section.
template<int size, bool big_endian>
Target_sparc<size, big_endian>::Relocate::relocate(
const Relocate_info<size, big_endian>* relinfo,
Target_sparc* target,
+ Output_section*,
size_t relnum,
const elfcpp::Rela<size, big_endian>& rela,
unsigned int r_type,
case elfcpp::R_SPARC_32:
if (!parameters->options().output_is_position_independent())
- Relocate_functions<size, big_endian>::rela32(view, object,
- psymval, addend);
+ Relocate_functions<size, big_endian>::rela32(view, object,
+ psymval, addend);
break;
case elfcpp::R_SPARC_DISP8:
case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX:
+ case elfcpp::R_SPARC_TLS_IE_ADD:
case elfcpp::R_SPARC_TLS_LE_HIX22:
case elfcpp::R_SPARC_TLS_LE_LOX10:
this->relocate_tls(relinfo, target, relnum, rela,
r_type);
break;
+ case elfcpp::R_SPARC_TLS_IE_ADD:
+ // This seems to be mainly so that we can find the addition
+ // instruction if there is one. There doesn't seem to be any
+ // actual relocation to apply.
+ break;
+
case elfcpp::R_SPARC_TLS_LE_HIX22:
// If we're creating a shared library, a dynamic relocation will
// have been created for this location, so do not apply it now.
(size == 64 ? "elf64-sparc" : "elf32-sparc"))
{ }
- Target* instantiated_target_;
-
Target* do_recognize(int machine, int, int)
{
switch (size)
return NULL;
}
- return do_instantiate_target();
+ return this->instantiate_target();
}
Target* do_instantiate_target()
- {
- if (this->instantiated_target_ == NULL)
- this->instantiated_target_ = new Target_sparc<size, big_endian>();
- return this->instantiated_target_;
- }
+ { return new Target_sparc<size, big_endian>(); }
};
Target_selector_sparc<32, true> target_selector_sparc32;
projects / deliverable / binutils-gdb.git / blobdiff