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* sparc.cc (class Target_sparc): Add has_got_section.

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(Target_sparc::Scan::global): If we see _GLOBAL_OFFSET_TABLE_,
	make sure we have a GOT section.

	* sparc.cc (optimize_tls_reloc): Recognize R_SPARC_TLS_IE_ADD.
	(Target_sparc::Scan::local): Likewise.
	(Target_sparc::Scan::global): Likewise.
	(Target_sparc::Relocate::relocate): Likewise.
	(Target_sparc::Relocate::relocate_tls): Likewise.
This commit is contained in:
Ian Lance Taylor
2009-03-17 07:19:10 +00:00
parent 8c50070107
commit 9efe6174dc
2 changed files with 36 additions and 2 deletions
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10
gold/ChangeLog
View File

@ -1,5 +1,15 @@
2009-03-17 Ian Lance Taylor <iant@google.com> 2009-03-17 Ian Lance Taylor <iant@google.com>
* sparc.cc (class Target_sparc): Add has_got_section.
(Target_sparc::Scan::global): If we see _GLOBAL_OFFSET_TABLE_,
make sure we have a GOT section.
* sparc.cc (optimize_tls_reloc): Recognize R_SPARC_TLS_IE_ADD.
(Target_sparc::Scan::local): Likewise.
(Target_sparc::Scan::global): Likewise.
(Target_sparc::Relocate::relocate): Likewise.
(Target_sparc::Relocate::relocate_tls): Likewise.
* symtab.cc (Symbol_table::define_default_version): New function, * symtab.cc (Symbol_table::define_default_version): New function,
broken out of add_from_object. broken out of add_from_object.
(Symbol_table::add_from_object): Call define_default_version. (Symbol_table::add_from_object): Call define_default_version.

24
gold/sparc.cc
View File

@ -155,6 +155,11 @@ class Target_sparc : public Sized_target<size, big_endian>
return strcmp(sym->name(), "___tls_get_addr") == 0; 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. // Return the size of the GOT section.
section_size_type section_size_type
got_size() got_size()
@ -1455,6 +1460,7 @@ optimize_tls_reloc(bool is_final, int r_type)
case elfcpp::R_SPARC_TLS_IE_LO10: case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD: case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX: case elfcpp::R_SPARC_TLS_IE_LDX:
case elfcpp::R_SPARC_TLS_IE_ADD:
// These are Initial-Exec relocs which get the thread offset // These are Initial-Exec relocs which get the thread offset
// from the GOT. If we know that we are linking against the // from the GOT. If we know that we are linking against the
// local symbol, we can switch to Local-Exec, which links the // local symbol, we can switch to Local-Exec, which links the
@ -1744,6 +1750,7 @@ Target_sparc<size, big_endian>::Scan::local(
case elfcpp::R_SPARC_TLS_IE_LO10: case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD: case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX: 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_HIX22: // Local-exec
case elfcpp::R_SPARC_TLS_LE_LOX10: case elfcpp::R_SPARC_TLS_LE_LOX10:
{ {
@ -1810,6 +1817,7 @@ Target_sparc<size, big_endian>::Scan::local(
case elfcpp::R_SPARC_TLS_IE_LO10: case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD: case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX: case elfcpp::R_SPARC_TLS_IE_LDX:
case elfcpp::R_SPARC_TLS_IE_ADD:
layout->set_has_static_tls(); layout->set_has_static_tls();
if (optimized_type == tls::TLSOPT_NONE) if (optimized_type == tls::TLSOPT_NONE)
{ {
@ -1907,6 +1915,13 @@ Target_sparc<size, big_endian>::Scan::global(
{ {
unsigned int orig_r_type = r_type; 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; r_type &= 0xff;
switch (r_type) switch (r_type)
{ {
@ -2105,6 +2120,7 @@ Target_sparc<size, big_endian>::Scan::global(
case elfcpp::R_SPARC_TLS_IE_LO10: case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD: case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX: case elfcpp::R_SPARC_TLS_IE_LDX:
case elfcpp::R_SPARC_TLS_IE_ADD:
{ {
const bool is_final = gsym->final_value_is_known(); const bool is_final = gsym->final_value_is_known();
const tls::Tls_optimization optimized_type const tls::Tls_optimization optimized_type
@ -2187,6 +2203,7 @@ Target_sparc<size, big_endian>::Scan::global(
case elfcpp::R_SPARC_TLS_IE_LO10: case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD: case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX: case elfcpp::R_SPARC_TLS_IE_LDX:
case elfcpp::R_SPARC_TLS_IE_ADD:
layout->set_has_static_tls(); layout->set_has_static_tls();
if (optimized_type == tls::TLSOPT_NONE) if (optimized_type == tls::TLSOPT_NONE)
{ {
@ -2670,6 +2687,7 @@ Target_sparc<size, big_endian>::Relocate::relocate(
case elfcpp::R_SPARC_TLS_IE_LO10: case elfcpp::R_SPARC_TLS_IE_LO10:
case elfcpp::R_SPARC_TLS_IE_LD: case elfcpp::R_SPARC_TLS_IE_LD:
case elfcpp::R_SPARC_TLS_IE_LDX: 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_HIX22:
case elfcpp::R_SPARC_TLS_LE_LOX10: case elfcpp::R_SPARC_TLS_LE_LOX10:
this->relocate_tls(relinfo, target, relnum, rela, this->relocate_tls(relinfo, target, relnum, rela,
@ -3049,6 +3067,12 @@ Target_sparc<size, big_endian>::Relocate::relocate_tls(
r_type); r_type);
break; 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: case elfcpp::R_SPARC_TLS_LE_HIX22:
// If we're creating a shared library, a dynamic relocation will // If we're creating a shared library, a dynamic relocation will
// have been created for this location, so do not apply it now. // have been created for this location, so do not apply it now.