2008-08-20 Bob Wilson <bob.wilson@acm.org>

bfd/
        * elf-bfd.h (elf_object_id): Add XTENSA_ELF_TDATA.
        * elf32-xtensa.c (elf_howto_table): Add TLS relocations.
        (elf_xtensa_reloc_type_lookup): Likewise.
        (TCB_SIZE): Define.
        (elf_xtensa_link_hash_entry): New.
        (GOT_UNKNOWN, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_TLS_ANY): Define.
        (elf_xtensa_hash_entry): Define.
        (elf_xtensa_obj_tdata): New.
        (elf_xtensa_tdata): Define.
        (elf_xtensa_local_got_tls_type): Define.
        (elf_xtensa_local_tlsfunc_refcounts): Define.
        (is_xtensa_elf): Define.
        (elf_xtensa_mkobject): New.
        (elf_xtensa_link_hash_table): Add tlsbase field.
        (elf_xtensa_link_hash_newfunc): New.
        (elf_xtensa_link_hash_table_create): Use elf_xtensa_link_hash_newfunc.
        Create an entry for "_TLS_MODULE_BASE_" and save it in tlsbase field.
        (elf_xtensa_copy_indirect_symbol): New.
        (elf_xtensa_check_relocs): Rewrite to handle TLS relocations.
        (elf_xtensa_gc_sweep_hook): Likewise.
        (elf_xtensa_allocate_dynrelocs): Optimize away GOT entries for
        TLSDESC_FN relocations when an IE reference is seen.
        (elf_xtensa_allocate_local_got_size): Likewise.
        (elf_xtensa_always_size_sections): New.
        (dtpoff_base, tpoff): New.
        (elf_xtensa_do_reloc): Handle TLS relocations.
        (replace_tls_insn): New.
        (IS_XTENSA_TLS_RELOC): Define.
        (elf_xtensa_relocate_section): Handle TLS relocations.
        (get_indirect_call_dest_reg): New.
        (bfd_elf32_mkobject): Define.
        (elf_backend_always_size_sections): New.
        (elf_backend_copy_indirect_symbol): New.
        * reloc.c (BFD_RELOC_XTENSA_TLSDESC_FN, BFD_RELOC_XTENSA_TLSDESC_ARG)
        (BFD_RELOC_XTENSA_TLS_DTPOFF, BFD_RELOC_XTENSA_TLS_TPOFF)
        (BFD_RELOC_XTENSA_TLS_FUNC, BFD_RELOC_XTENSA_TLS_ARG)
        (BFD_RELOC_XTENSA_TLS_CALL): New.
        * bfd-in2.h: Regenerate.
        * libbfd.h: Regenerate.
gas/
        * config/tc-xtensa.c (O_tlsfunc, O_tlsarg, O_tlscall): Define.
        (O_tpoff, O_dtpoff): Define.
        (suffix_relocs): Add entries for TLS suffixes.
        (xtensa_elf_cons): Check for invalid use of TLS relocations.
        (map_operator_to_reloc): Add is_literal parameter and use it to
        control translating TLS instruction relocations to the corresponding
        literal relocations.
        (xg_valid_literal_expression): Allow TLS operators.
        (xg_build_to_insn): Copy TLS operators from pseudo-instruction
        operands to generated literals.
        (xg_assemble_literal): Handle TLS operators.  Update call to
        map_operator_to_reloc.
        (md_assemble): Handle CALLXn.TLS pseudo-instruction.
        (md_apply_fix): Handle TLS relocations.
        (emit_single_op): Handle TLS operators.
        (convert_frag_immed): Update call to map_operator_to_reloc.
        (vinsn_to_insnbuf): Emit relocations for TLS-related instructions.
        * config/xtensa-istack.h (tinsn_struct): Add tls_reloc field.
        * config/xtensa-relax.c (append_literal_op): Add src_op parameter
        to initialize the op_data field of the BuildOp.
        (build_transition): Use it here to record the source operand
        corresponding to a generated literal.
        * config/xtensa-relax.h (build_op): Comment op_data use for literals.
include/elf/
        * xtensa.h (R_XTENSA_TLSDESC_FN, R_XTENSA_TLSDESC_ARG)
        (R_XTENSA_TLS_DTPOFF, R_XTENSA_TLS_TPOFF, R_XTENSA_TLS_FUNC)
        (R_XTENSA_TLS_ARG, R_XTENSA_TLS_CALL): New.
ld/testsuite/
        * ld-xtensa/tlsbin.dd, ld-xtensa/tlsbin.rd, ld-xtensa/tlsbin.s,
        ld-xtensa/tlsbin.sd, ld-xtensa/tlsbin.td, ld-xtensa/tlslib.s,
        ld-xtensa/tlspic.dd, ld-xtensa/tlspic.rd, ld-xtensa/tlspic.sd,
        ld-xtensa/tlspic.td, ld-xtensa/tlspic1.s, ld-xtensa/tlspic2.s: New.
        * ld-xtensa/xtensa.exp: Run them.

1 files changed, 98 insertions, 0 deletions

diff --git a/ld/testsuite/ld-xtensa/tlsbin.s b/ld/testsuite/ld-xtensa/tlsbin.s
new file mode 100644
index 0000000..2220cfc
--- /dev/null
+++ b/ld/testsuite/ld-xtensa/tlsbin.s
@@ -0,0 +1,98 @@
+	.section ".tdata", "awT", @progbits
+	.global sg1, sg2, sg3, sg4, sg5, sg6, sg7, sg8
+	.global sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
+	.hidden sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
+	.align	4
+sg1:	.long	17
+sg2:	.long	18
+sg3:	.long	19
+sg4:	.long	20
+sg5:	.long	21
+sg6:	.long	22
+sg7:	.long	23
+sg8:	.long	24
+sl1:	.long	65
+sl2:	.long	66
+sl3:	.long	67
+sl4:	.long	68
+sl5:	.long	69
+sl6:	.long	70
+sl7:	.long	71
+sl8:	.long	72
+sh1:	.long	157
+sh2:	.long	158
+sh3:	.long	159
+sh4:	.long	160
+sh5:	.long	161
+sh6:	.long	162
+sh7:	.long	163
+sh8:	.long	164
+
+	.text
+	.global	_start
+	.type	_start, @function
+_start:
+	entry	sp, 32
+
+	/* GD -> IE because variable is not defined in executable */
+	movi	a8, sG1@tlsfunc
+	movi	a10, sG1@tlsarg
+	callx8.tls a8, sG1@tlscall
+	
+	/* GD -> IE because variable is not defined in executable where
+	   the variable is referenced through IE too */
+	movi	a8, sG2@tlsfunc
+	movi	a10, sG2@tlsarg
+	callx8.tls a8, sG2@tlscall
+
+	/* GD -> LE with global variable defined in executable */
+	movi	a8, sg1@tlsfunc
+	movi	a10, sg1@tlsarg
+	callx8.tls a8, sg1@tlscall
+
+	/* GD -> LE with local variable defined in executable */
+	movi	a8, sl1@tlsfunc
+	movi	a10, sl1@tlsarg
+	callx8.tls a8, sl1@tlscall
+
+	/* GD -> LE with hidden variable defined in executable */
+	movi	a8, sh1@tlsfunc
+	movi	a10, sh1@tlsarg
+	callx8.tls a8, sh1@tlscall
+
+	/* LD -> LE */
+	movi   a8, _TLS_MODULE_BASE_@tlsfunc
+	movi   a10, _TLS_MODULE_BASE_@tlsarg
+	callx8.tls a8, _TLS_MODULE_BASE_@tlscall
+	movi   a12, 1+sl1@dtpoff
+	add    a12, a12, a10
+	movi   a13, sl2@dtpoff+2
+	add    a13, a13, a10
+	
+	/* LD -> LE against hidden variables */
+	movi   a12, sh1@dtpoff
+	add    a12, a12, a10
+	movi   a13, 3+sh2@dtpoff
+	add    a13, a13, a10
+
+	/* IE against global var */
+	rur	a2, THREADPTR
+	movi	a3, sG2@tpoff
+	add	a3, a3, a2
+
+	/* IE -> LE against global var defined in exec */
+	rur	a4, THREADPTR
+	movi	a5, sg1@tpoff
+	add	a5, a5, a4
+
+	/* IE -> LE against local var */
+	rur	a6, THREADPTR
+	movi	a7, sl1@tpoff
+	add	a7, a7, a6
+
+	/* IE -> LE against hidden var */
+	rur	a8, THREADPTR
+	movi	a9, sh1@tpoff
+	add	a9, a9, a8
+
+	retw