(Target::osabi): New function.
(Target::set_osabi): New function.
(Target::Target): Initialize osabi_.
(Target::do_adjust_elf_header): Make pure virtual.
(Sized_target::do_adjust_elf_header): Declare.
* target.cc (Sized_target::do_adjust_elf_header): New function.
(class Sized_target): Instantiate all versions.
* freebsd.h (class Target_freebsd): Remove.
(Target_selector_freebsd::do_recognize): Call set_osabi on
Target.
(Target_selector_freebsd::do_recognize_by_name): Likewise.
(Target_selector_freebsd::set_osabi): Remove.
* i386.cc (class Target_i386): Inherit from Sized_target rather
than Target_freebsd.
* x86_64.cc (class Target_x86_64): Likewise.
+2011-06-28 Ian Lance Taylor <iant@google.com>
+
+ * target.h (class Target): Add osabi_ field.
+ (Target::osabi): New function.
+ (Target::set_osabi): New function.
+ (Target::Target): Initialize osabi_.
+ (Target::do_adjust_elf_header): Make pure virtual.
+ (Sized_target::do_adjust_elf_header): Declare.
+ * target.cc (Sized_target::do_adjust_elf_header): New function.
+ (class Sized_target): Instantiate all versions.
+ * freebsd.h (class Target_freebsd): Remove.
+ (Target_selector_freebsd::do_recognize): Call set_osabi on
+ Target.
+ (Target_selector_freebsd::do_recognize_by_name): Likewise.
+ (Target_selector_freebsd::set_osabi): Remove.
+ * i386.cc (class Target_i386): Inherit from Sized_target rather
+ than Target_freebsd.
+ * x86_64.cc (class Target_x86_64): Likewise.
+
2011-06-28 Ian Lance Taylor <iant@google.com>
* target.h (Target::can_check_for_function_pointers): Rewrite.
// freebsd.h -- FreeBSD support for gold -*- C++ -*-
-// Copyright 2009 Free Software Foundation, Inc.
+// Copyright 2009, 2011 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
{
// FreeBSD 4.1 and later wants the EI_OSABI field in the ELF header to
-// be set to ELFOSABI_FREEBSD. This is a subclass of Sized_target
-// which supports that. The real target would be a subclass of this
-// one. We permit combining FreeBSD and non-FreeBSD object files.
-// The effect of this target is to set the code in the output file.
-
-template<int size, bool big_endian>
-class Target_freebsd : public Sized_target<size, big_endian>
-{
- public:
- // Set the value to use for the EI_OSABI field in the ELF header.
- void
- set_osabi(elfcpp::ELFOSABI osabi)
- { this->osabi_ = osabi; }
-
- protected:
- Target_freebsd(const Target::Target_info* pti)
- : Sized_target<size, big_endian>(pti),
- osabi_(elfcpp::ELFOSABI_NONE)
- { }
-
- virtual void
- do_adjust_elf_header(unsigned char* view, int len) const;
-
- private:
- // Value to store in the EI_OSABI field of the ELF file header.
- elfcpp::ELFOSABI osabi_;
-};
-
-// Adjust the ELF file header by storing the requested value in the
-// OSABI field. This is for FreeBSD support.
-
-template<int size, bool big_endian>
-inline void
-Target_freebsd<size, big_endian>::do_adjust_elf_header(unsigned char* view,
- int len) const
-{
- if (this->osabi_ != elfcpp::ELFOSABI_NONE)
- {
- gold_assert(len == elfcpp::Elf_sizes<size>::ehdr_size);
-
- elfcpp::Ehdr<size, false> ehdr(view);
- unsigned char e_ident[elfcpp::EI_NIDENT];
- memcpy(e_ident, ehdr.get_e_ident(), elfcpp::EI_NIDENT);
-
- e_ident[elfcpp::EI_OSABI] = this->osabi_;
-
- elfcpp::Ehdr_write<size, false> oehdr(view);
- oehdr.put_e_ident(e_ident);
- }
-}
-
-// A target selector for targets which permit combining both FreeBSD
-// and non-FreeBSD object files.
+// be set to ELFOSABI_FREEBSD. This is a target selector for targets
+// which permit combining both FreeBSD and non-FreeBSD object files.
class Target_selector_freebsd : public Target_selector
{
{
Target* ret = this->instantiate_target();
if (osabi == elfcpp::ELFOSABI_FREEBSD)
- this->set_osabi(ret);
+ ret->set_osabi(static_cast<elfcpp::ELFOSABI>(osabi));
return ret;
}
else if (strcmp(name, this->freebsd_bfd_name_) == 0)
{
Target* ret = this->instantiate_target();
- this->set_osabi(ret);
+ ret->set_osabi(elfcpp::ELFOSABI_FREEBSD);
return ret;
}
else
}
private:
- // Set the OSABI field. This is quite ugly.
- void
- set_osabi(Target* target)
- {
- if (this->get_size() == 32)
- {
- if (this->is_big_endian())
- static_cast<Target_freebsd<32, true>*>(target)->
- set_osabi(elfcpp::ELFOSABI_FREEBSD);
- else
- static_cast<Target_freebsd<32, false>*>(target)->
- set_osabi(elfcpp::ELFOSABI_FREEBSD);
- }
- else if (this->get_size() == 64)
- {
- if (this->is_big_endian())
- static_cast<Target_freebsd<64, true>*>(target)->
- set_osabi(elfcpp::ELFOSABI_FREEBSD);
- else
- static_cast<Target_freebsd<64, false>*>(target)->
- set_osabi(elfcpp::ELFOSABI_FREEBSD);
- }
- else
- gold_unreachable();
- }
-
// The BFD name for the non-Freebsd target.
const char* bfd_name_;
// The BFD name for the Freebsd target.
// http://people.redhat.com/drepper/tls.pdf
// http://www.lsd.ic.unicamp.br/~oliva/writeups/TLS/RFC-TLSDESC-x86.txt
-class Target_i386 : public Target_freebsd<32, false>
+class Target_i386 : public Sized_target<32, false>
{
public:
typedef Output_data_reloc<elfcpp::SHT_REL, true, 32, false> Reloc_section;
Target_i386()
- : Target_freebsd<32, false>(&i386_info),
+ : Sized_target<32, false>(&i386_info),
got_(NULL), plt_(NULL), got_plt_(NULL), got_tlsdesc_(NULL),
global_offset_table_(NULL), rel_dyn_(NULL),
copy_relocs_(elfcpp::R_386_COPY), dynbss_(NULL),
-// target.cc
+// target.cc -- target support for gold.
-// Copyright 2009, 2010 Free Software Foundation, Inc.
+// Copyright 2009, 2010, 2011 Free Software Foundation, Inc.
// Written by Doug Kwan <dougkwan@google.com>.
// This file is part of gold.
}
}
+// Class Sized_target.
+
+// Set the EI_OSABI field of the ELF header if requested.
+
+template<int size, bool big_endian>
+void
+Sized_target<size, big_endian>::do_adjust_elf_header(unsigned char* view,
+ int len) const
+{
+ elfcpp::ELFOSABI osabi = this->osabi();
+ if (osabi != elfcpp::ELFOSABI_NONE)
+ {
+ gold_assert(len == elfcpp::Elf_sizes<size>::ehdr_size);
+
+ elfcpp::Ehdr<size, false> ehdr(view);
+ unsigned char e_ident[elfcpp::EI_NIDENT];
+ memcpy(e_ident, ehdr.get_e_ident(), elfcpp::EI_NIDENT);
+
+ e_ident[elfcpp::EI_OSABI] = osabi;
+
+ elfcpp::Ehdr_write<size, false> oehdr(view);
+ oehdr.put_e_ident(e_ident);
+ }
+}
+
+#ifdef HAVE_TARGET_32_LITTLE
+template
+class Sized_target<32, false>;
+#endif
+
+#ifdef HAVE_TARGET_32_BIG
+template
+class Sized_target<32, true>;
+#endif
+
+#ifdef HAVE_TARGET_64_LITTLE
+template
+class Sized_target<64, false>;
+#endif
+
+#ifdef HAVE_TARGET_64_BIG
+template
+class Sized_target<64, true>;
+#endif
+
} // End namespace gold.
select_as_default_target()
{ this->do_select_as_default_target(); }
+ // Return the value to store in the EI_OSABI field in the ELF
+ // header.
+ elfcpp::ELFOSABI
+ osabi() const
+ { return this->osabi_; }
+
+ // Set the value to store in the EI_OSABI field in the ELF header.
+ void
+ set_osabi(elfcpp::ELFOSABI osabi)
+ { this->osabi_ = osabi; }
+
protected:
// This struct holds the constant information for a child class. We
// use a struct to avoid the overhead of virtual function calls for
Target(const Target_info* pti)
: pti_(pti), processor_specific_flags_(0),
- are_processor_specific_flags_set_(false)
+ are_processor_specific_flags_set_(false), osabi_(elfcpp::ELFOSABI_NONE)
{ }
// Virtual function which may be implemented by the child class.
// Adjust the output file header before it is written out. VIEW
// points to the header in external form. LEN is the length, and
// will be one of the values of elfcpp::Elf_sizes<size>::ehdr_size.
- // By default, we do nothing.
+ // By default, we set the EI_OSABI field if requested (in
+ // Sized_target).
virtual void
- do_adjust_elf_header(unsigned char*, int) const
- { }
+ do_adjust_elf_header(unsigned char*, int) const = 0;
// Virtual function which may be overridden by the child class.
virtual bool
elfcpp::Elf_Word processor_specific_flags_;
// Whether the processor-specific flags are set at least once.
bool are_processor_specific_flags_set_;
+ // If not ELFOSABI_NONE, the value to put in the EI_OSABI field of
+ // the ELF header. This is handled at this level because it is
+ // OS-specific rather than processor-specific.
+ elfcpp::ELFOSABI osabi_;
};
// The abstract class for a specific size and endianness of target.
gold_assert(pti->size == size);
gold_assert(pti->is_big_endian ? big_endian : !big_endian);
}
+
+ // Set the EI_OSABI field if requested.
+ virtual void
+ do_adjust_elf_header(unsigned char*, int) const;
};
} // End namespace gold.
// http://people.redhat.com/drepper/tls.pdf
// http://www.lsd.ic.unicamp.br/~oliva/writeups/TLS/RFC-TLSDESC-x86.txt
-class Target_x86_64 : public Target_freebsd<64, false>
+class Target_x86_64 : public Sized_target<64, false>
{
public:
// In the x86_64 ABI (p 68), it says "The AMD64 ABI architectures
typedef Output_data_reloc<elfcpp::SHT_RELA, true, 64, false> Reloc_section;
Target_x86_64()
- : Target_freebsd<64, false>(&x86_64_info),
+ : Sized_target<64, false>(&x86_64_info),
got_(NULL), plt_(NULL), got_plt_(NULL), got_tlsdesc_(NULL),
global_offset_table_(NULL), rela_dyn_(NULL),
copy_relocs_(elfcpp::R_X86_64_COPY), dynbss_(NULL),
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