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* symtab.h (Symbol::NON_PIC_REF): Remove.
	(Symbol::RELATIVE_REF, Symbol::TLS_REF): New Reference_flags.
	(Symbol::FUNCTION_CALL): Renumber.  Reword comment.
	(Symbol::needs_dynamic_reloc): Don't check NON_PIC_REF.
	(Symbol::use_plt_offset): Take a flags argument and pass it
	directly to needs_dynamic_reloc.  Restrict check for undefined
	weak symbols to function calls.
	* arm.cc (Target_arm::Scan::get_reference_flags): New function.
	(Target_arm::Scan::global): Use it.
	(Target_arm::Scan::scan_reloc_for_stub): Likewise.
	(Target_arm::Relocate::relocate): Likewise.
	(Target_arm::Relocate::should_apply_static_reloc): Replace flags
	parameter with an r_type parameter.  Use get_reference_flags
	to get the flags.
	(Target_arm::Relocate::relocate): Update accordingly.
	* i386.cc (Target_i386::Scan::get_reference_flags): New function.
	(Target_i386::Scan::reloc_needs_plt_for_ifunc): Use it.
	(Target_i386::Scan::global): Likewise.
	(Target_i386::Relocate::relocate): Likewise.
	(Target_i386::Relocate::should_apply_static_reloc): Replace flags
	parameter with an r_type parameter.  Use get_reference_flags
	to get the flags.
	(Target_i386::Relocate::relocate): Update accordingly.
	* powerpc.cc (Target_powerpc::Scan::get_reference_flags): New function.
	(Target_powerpc::Scan::global): Use it.
	(Target_powerpc::Scan::scan_reloc_for_stub): Likewise.
	(Target_powerpc::Relocate::relocate): Likewise.
	* sparc.cc (Target_sparc::Scan::get_reference_flags): New function.
	(Target_sparc::Scan::global): Use it.
	(Target_sparc::Scan::scan_reloc_for_stub): Likewise.
	(Target_sparc::Relocate::relocate): Likewise.
	* x86_64.cc (Target_x86_64::Scan::get_reference_flags): New function.
	(Target_x86_64::Scan::reloc_needs_plt_for_ifunc): Use it.
	(Target_x86_64::Scan::global): Likewise.
	(Target_x86_64::Relocate::relocate): Likewise.
This commit is contained in:
Richard Sandiford
2010-11-11 10:43:30 +00:00
parent fd50354116
commit 95a2c8d6f7
7 changed files with 561 additions and 251 deletions
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137
gold/sparc.cc
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@@ -198,6 +198,9 @@ class Target_sparc : public Sized_target<size, big_endian>
: issued_non_pic_error_(false)
{ }
static inline int
get_reference_flags(unsigned int r_type);
inline void
local(Symbol_table* symtab, Layout* layout, Target_sparc* target,
Sized_relobj<size, big_endian>* object,
@@ -1576,6 +1579,119 @@ optimize_tls_reloc(bool is_final, int r_type)
}
}
// Get the Reference_flags for a particular relocation.
template<int size, bool big_endian>
int
Target_sparc<size, big_endian>::Scan::get_reference_flags(unsigned int r_type)
{
r_type &= 0xff;
switch (r_type)
{
case elfcpp::R_SPARC_NONE:
case elfcpp::R_SPARC_REGISTER:
case elfcpp::R_SPARC_GNU_VTINHERIT:
case elfcpp::R_SPARC_GNU_VTENTRY:
// No symbol reference.
return 0;
case elfcpp::R_SPARC_UA64:
case elfcpp::R_SPARC_64:
case elfcpp::R_SPARC_HIX22:
case elfcpp::R_SPARC_LOX10:
case elfcpp::R_SPARC_H44:
case elfcpp::R_SPARC_M44:
case elfcpp::R_SPARC_L44:
case elfcpp::R_SPARC_HH22:
case elfcpp::R_SPARC_HM10:
case elfcpp::R_SPARC_LM22:
case elfcpp::R_SPARC_HI22:
case elfcpp::R_SPARC_LO10:
case elfcpp::R_SPARC_OLO10:
case elfcpp::R_SPARC_UA32:
case elfcpp::R_SPARC_32:
case elfcpp::R_SPARC_UA16:
case elfcpp::R_SPARC_16:
case elfcpp::R_SPARC_11:
case elfcpp::R_SPARC_10:
case elfcpp::R_SPARC_8:
case elfcpp::R_SPARC_7:
case elfcpp::R_SPARC_6:
case elfcpp::R_SPARC_5:
return Symbol::ABSOLUTE_REF;
case elfcpp::R_SPARC_DISP8:
case elfcpp::R_SPARC_DISP16:
case elfcpp::R_SPARC_DISP32:
case elfcpp::R_SPARC_DISP64:
case elfcpp::R_SPARC_PC_HH22:
case elfcpp::R_SPARC_PC_HM10:
case elfcpp::R_SPARC_PC_LM22:
case elfcpp::R_SPARC_PC10:
case elfcpp::R_SPARC_PC22:
case elfcpp::R_SPARC_WDISP30:
case elfcpp::R_SPARC_WDISP22:
case elfcpp::R_SPARC_WDISP19:
case elfcpp::R_SPARC_WDISP16:
return Symbol::RELATIVE_REF;
case elfcpp::R_SPARC_PLT64:
case elfcpp::R_SPARC_PLT32:
case elfcpp::R_SPARC_HIPLT22:
case elfcpp::R_SPARC_LOPLT10:
case elfcpp::R_SPARC_PCPLT10:
return Symbol::FUNCTION_CALL | Symbol::ABSOLUTE_REF;
case elfcpp::R_SPARC_PCPLT32:
case elfcpp::R_SPARC_PCPLT22:
case elfcpp::R_SPARC_WPLT30:
return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF;
case elfcpp::R_SPARC_GOTDATA_OP:
case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
case elfcpp::R_SPARC_GOT10:
case elfcpp::R_SPARC_GOT13:
case elfcpp::R_SPARC_GOT22:
// Absolute in GOT.
return Symbol::ABSOLUTE_REF;
case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
case elfcpp::R_SPARC_TLS_GD_LO10:
case elfcpp::R_SPARC_TLS_GD_ADD:
case elfcpp::R_SPARC_TLS_GD_CALL:
case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
case elfcpp::R_SPARC_TLS_LDM_LO10:
case elfcpp::R_SPARC_TLS_LDM_ADD:
case elfcpp::R_SPARC_TLS_LDM_CALL:
case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
case elfcpp::R_SPARC_TLS_LDO_LOX10:
case elfcpp::R_SPARC_TLS_LDO_ADD:
case elfcpp::R_SPARC_TLS_LE_HIX22:
case elfcpp::R_SPARC_TLS_LE_LOX10:
case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
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:
return Symbol::TLS_REF;
case elfcpp::R_SPARC_COPY:
case elfcpp::R_SPARC_GLOB_DAT:
case elfcpp::R_SPARC_JMP_SLOT:
case elfcpp::R_SPARC_RELATIVE:
case elfcpp::R_SPARC_TLS_DTPMOD64:
case elfcpp::R_SPARC_TLS_DTPMOD32:
case elfcpp::R_SPARC_TLS_DTPOFF64:
case elfcpp::R_SPARC_TLS_DTPOFF32:
case elfcpp::R_SPARC_TLS_TPOFF64:
case elfcpp::R_SPARC_TLS_TPOFF32:
default:
// Not expected. We will give an error later.
return 0;
}
}
// Generate a PLT entry slot for a call to __tls_get_addr
template<int size, bool big_endian>
void
@@ -2068,10 +2184,7 @@ Target_sparc<size, big_endian>::Scan::global(
if (gsym->needs_plt_entry())
target->make_plt_entry(symtab, layout, gsym);
// Make a dynamic relocation if necessary.
int flags = Symbol::NON_PIC_REF;
if (gsym->type() == elfcpp::STT_FUNC)
flags |= Symbol::FUNCTION_CALL;
if (gsym->needs_dynamic_reloc(flags))
if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type)))
{
if (gsym->may_need_copy_reloc())
{
@@ -2127,7 +2240,7 @@ Target_sparc<size, big_endian>::Scan::global(
gsym->set_needs_dynsym_value();
}
// Make a dynamic relocation if necessary.
if (gsym->needs_dynamic_reloc(Symbol::ABSOLUTE_REF))
if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type)))
{
unsigned int r_off = reloc.get_r_offset();
@@ -2512,19 +2625,7 @@ Target_sparc<size, big_endian>::Relocate::relocate(
// Pick the value to use for symbols defined in shared objects.
Symbol_value<size> symval;
if (gsym != NULL
&& gsym->use_plt_offset(r_type == elfcpp::R_SPARC_DISP8
|| r_type == elfcpp::R_SPARC_DISP16
|| r_type == elfcpp::R_SPARC_DISP32
|| r_type == elfcpp::R_SPARC_DISP64
|| r_type == elfcpp::R_SPARC_PC_HH22
|| r_type == elfcpp::R_SPARC_PC_HM10
|| r_type == elfcpp::R_SPARC_PC_LM22
|| r_type == elfcpp::R_SPARC_PC10
|| r_type == elfcpp::R_SPARC_PC22
|| r_type == elfcpp::R_SPARC_WDISP30
|| r_type == elfcpp::R_SPARC_WDISP22
|| r_type == elfcpp::R_SPARC_WDISP19
|| r_type == elfcpp::R_SPARC_WDISP16))
&& gsym->use_plt_offset(Scan::get_reference_flags(r_type)))
{
elfcpp::Elf_Xword value;