* configure.ac (i[34567]86-*-*): Handle Solaris 2/x86 TLS support

	* configure.ac (i[34567]86-*-*): Handle Solaris 2/x86 TLS support
	and Sun as TLS syntax.
	(TLS_SECTION_ASM_FLAG) [on_solaris && !gas_flag]: Define.
	* configure: Regenerate.
	* config.in: Regenerate.
	* varasm.c (TLS_SECTION_ASM_FLAG): Define default.
	(default_elf_asm_named_section): Use it.
	* config/i386/i386.c (output_pic_addr_const): Lowercase @DTPOFF.
	(i386_output_dwarf_dtprel): Likewise.
	(output_addr_const_extra): Likewise.
	(output_pic_addr_const): Lowercase @GOTTPOFF.
	(output_addr_const_extra): Likewise.
	(output_pic_addr_const): Lowercase @GOTNTPOFF.
	(output_addr_const_extra): Likewise.
	(output_pic_addr_const): Lowercase @INDNTPOFF.
	(output_addr_const_extra): Likewise.
	(output_pic_addr_const): Lowercase @NTPOFF.
	(output_addr_const_extra): Likewise.
	(output_pic_addr_const): Lowercase @TPOFF.
	(output_addr_const_extra): Likewise.
	* config/i386/i386.md (*tls_global_dynamic_32_gnu): Lowercase
	@TLSGD.
	(*tls_global_dynamic_64): Likewise.
	(*tls_local_dynamic_base_32_gnu): Lowercase @TLSLDM.
	(*tls_local_dynamic_base_64): Lowercase	@TLSLD.

	* defaults.h (TLS_COMMON_ASM_OP): Provide default.
	(ASM_OUTPUT_TLS_COMMON): Use it.
	* config/i386/sol2-gas.h (TLS_COMMON_ASM_OP): Undef.

	PR target/38118
	* config.gcc (sparc*-*-solaris2*) [$gas=yes]: Add usegas.h to
	tm_file.
	* config/sparc/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): Move ...
	* config/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): ... here.
	* config/i386/sol2-10.h (ASM_OUTPUT_ALIGNED_COMMON): Redefine.
	* config/i386/sol2.h (TARGET_SUN_TLS): Redefine.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@157705 138bc75d-0d04-0410-961f-82ee72b054a4