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* sparc.cc (Target_sparc::Scan): Change from struct to class.

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Add issued_non_pic_error_ field.  Declare check_non_pic.
	(Target_sparc::Scan::check_non_pic): New function.
	(Target_sparc::Scan::local): Call check_non_pic as appropriate.
	(Target_sparc::Scan::global): Likewise.
This commit is contained in:
David S. Miller 2008-04-17 07:07:37 +00:00
parent 11936fb178
commit 32b769e114
2 changed files with 114 additions and 1 deletions
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6
gold/ChangeLog
View File

@ -27,6 +27,12 @@
2008-04-16 David S. Miller <davem@davemloft.net>
* sparc.cc (Target_sparc::Scan): Change from struct to class.
Add issued_non_pic_error_ field. Declare check_non_pic.
(Target_sparc::Scan::check_non_pic): New function.
(Target_sparc::Scan::local): Call check_non_pic as appropriate.
(Target_sparc::Scan::global): Likewise.
* configure.ac (FN_PTRS_IN_SO_WITHOUT_PIC): Add sparc64.
* configure: Rebuild.

109
gold/sparc.cc
View File

@ -150,8 +150,13 @@ class Target_sparc : public Sized_target<size, big_endian>
private:
// The class which scans relocations.
struct Scan
class Scan
{
public:
Scan()
: issued_non_pic_error_(false)
{ }
inline void
local(const General_options& options, Symbol_table* symtab,
Layout* layout, Target_sparc* target,
@ -170,6 +175,7 @@ class Target_sparc : public Sized_target<size, big_endian>
const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
Symbol* gsym);
private:
static void
unsupported_reloc_local(Sized_relobj<size, big_endian>*,
unsigned int r_type);
@ -181,6 +187,12 @@ class Target_sparc : public Sized_target<size, big_endian>
static void
generate_tls_call(Symbol_table* symtab, Layout* layout,
Target_sparc* target);
void
check_non_pic(Relobj*, unsigned int r_type);
// Whether we have issued an error about a non-PIC compilation.
bool issued_non_pic_error_;
};
// The class which implements relocation.
@ -1460,6 +1472,97 @@ Target_sparc<size, big_endian>::Scan::unsupported_reloc_local(
object->name().c_str(), r_type);
}
// We are about to emit a dynamic relocation of type R_TYPE. If the
// dynamic linker does not support it, issue an error.
template<int size, bool big_endian>
void
Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type)
{
gold_assert(r_type != elfcpp::R_SPARC_NONE);
if (size == 64)
{
switch (r_type)
{
// These are the relocation types supported by glibc for sparc 64-bit.
case elfcpp::R_SPARC_RELATIVE:
case elfcpp::R_SPARC_COPY:
case elfcpp::R_SPARC_64:
case elfcpp::R_SPARC_GLOB_DAT:
case elfcpp::R_SPARC_JMP_SLOT:
case elfcpp::R_SPARC_TLS_DTPMOD64:
case elfcpp::R_SPARC_TLS_DTPOFF64:
case elfcpp::R_SPARC_TLS_TPOFF64:
case elfcpp::R_SPARC_TLS_LE_HIX22:
case elfcpp::R_SPARC_TLS_LE_LOX10:
case elfcpp::R_SPARC_8:
case elfcpp::R_SPARC_16:
case elfcpp::R_SPARC_DISP8:
case elfcpp::R_SPARC_DISP16:
case elfcpp::R_SPARC_DISP32:
case elfcpp::R_SPARC_WDISP30:
case elfcpp::R_SPARC_LO10:
case elfcpp::R_SPARC_HI22:
case elfcpp::R_SPARC_OLO10:
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_UA16:
case elfcpp::R_SPARC_UA32:
case elfcpp::R_SPARC_UA64:
return;
default:
break;
}
}
else
{
switch (r_type)
{
// These are the relocation types supported by glibc for sparc 32-bit.
case elfcpp::R_SPARC_RELATIVE:
case elfcpp::R_SPARC_COPY:
case elfcpp::R_SPARC_GLOB_DAT:
case elfcpp::R_SPARC_32:
case elfcpp::R_SPARC_JMP_SLOT:
case elfcpp::R_SPARC_TLS_DTPMOD32:
case elfcpp::R_SPARC_TLS_DTPOFF32:
case elfcpp::R_SPARC_TLS_TPOFF32:
case elfcpp::R_SPARC_TLS_LE_HIX22:
case elfcpp::R_SPARC_TLS_LE_LOX10:
case elfcpp::R_SPARC_8:
case elfcpp::R_SPARC_16:
case elfcpp::R_SPARC_DISP8:
case elfcpp::R_SPARC_DISP16:
case elfcpp::R_SPARC_DISP32:
case elfcpp::R_SPARC_LO10:
case elfcpp::R_SPARC_WDISP30:
case elfcpp::R_SPARC_HI22:
case elfcpp::R_SPARC_UA16:
case elfcpp::R_SPARC_UA32:
return;
default:
break;
}
}
// This prevents us from issuing more than one error per reloc
// section. But we can still wind up issuing more than one
// error per object file.
if (this->issued_non_pic_error_)
return;
object->error(_("requires unsupported dynamic reloc; "
"recompile with -fPIC"));
this->issued_non_pic_error_ = true;
return;
}
// Scan a relocation for a local symbol.
template<int size, bool big_endian>
@ -1533,6 +1636,8 @@ Target_sparc<size, big_endian>::Scan::local(
if (parameters->options().output_is_position_independent())
{
Reloc_section* rela_dyn = target->rela_dyn_section(layout);
check_non_pic(object, r_type);
if (lsym.get_st_type() != elfcpp::STT_SECTION)
{
unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
@ -1830,6 +1935,7 @@ Target_sparc<size, big_endian>::Scan::global(
else
{
Reloc_section* rela_dyn = target->rela_dyn_section(layout);
check_non_pic(object, r_type);
rela_dyn->add_global(gsym, orig_r_type, output_section, object,
data_shndx, reloc.get_r_offset(),
reloc.get_r_addend());
@ -1895,6 +2001,7 @@ Target_sparc<size, big_endian>::Scan::global(
{
Reloc_section* rela_dyn = target->rela_dyn_section(layout);
check_non_pic(object, r_type);
if (gsym->is_from_dynobj()
|| gsym->is_undefined()
|| gsym->is_preemptible())