2010-02-18 Doug Kwan <dougkwan@google.com>

2010-02-18  Doug Kwan  <dougkwan@google.com>

	* arm-reloc.def: Mark R_ARM_TLS_GD32, R_ARM_TLS_LDM32,
	R_ARM_TLS_LDO32, R_ARM_TLS_IE32 and R_ARM_TLS_LE32 are implemented.
	* arm.cc (Arm_relocation_functions): New forward declaration.
	(Target_arm::Target_arm): Initialize new data members
	got_mod_index_offset_ and tls_base_symbol_defined_.
	(Target_arm::Relocate::relocate_tls): New method.
	(Target_arm::optimize_tls_reloc, Target_arm::define_tls_base_symbol,
	 Target_arm::got_mod_index_entry, Target_arm::rel_tls_desc_section):
	New methods.
   	(Target_arm::Got_type): Add GOT_TYPE_TLS_NOFFSET, GOT_TYPE_OFFSET,
	GOT_TYPE_TLS_PAIR and GOT_TYPE_TLS_DESC.
	(Target_arm::got_mod_index_offset_,
	Target_arm::tls_base_symbol_defined_): New data members.
	(Target_arm::Scan::local, Target::Scan::global,
	Target_arm::Relocate::relocate): Handle 32-bit initial TLS
	relocations.