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, 81 insertions, 0 deletions

diff --git a/ld/testsuite/ld-xtensa/tlspic.dd b/ld/testsuite/ld-xtensa/tlspic.dd
new file mode 100644
index 0000000..9f6e20a
--- /dev/null
+++ b/ld/testsuite/ld-xtensa/tlspic.dd
@@ -0,0 +1,81 @@
+#source: tlspic1.s
+#source: tlspic2.s
+#as:
+#ld: -shared -melf32xtensa
+#objdump: -drj.text --start-address=0x350
+#target: xtensa*-*-linux*
+
+.*: +file format elf32-xtensa-.e
+
+Disassembly of section \.text:
+
+0+350 <_start>:
+ [0-9a-f]+:	[0-9a-f]+[ 	]+entry	a1, 32
+#  GD
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a8, 2e0 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 2e4 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+callx8	a8
+#  GD -> IE because variable is referenced through IE too
+ [0-9a-f]+:	[0-9a-f]+[ 	]+rur.threadptr	a8
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 2ec <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a10, a10, a8
+#  GD against local variable
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a8, 2f0 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 2f4 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+callx8	a8
+#  GD -> IE against local variable referenced through IE too
+ [0-9a-f]+:	[0-9a-f]+[ 	]+rur.threadptr	a8
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 2fc <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a10, a10, a8
+#  GD against hidden and local variable
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a8, 300 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 304 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+callx8	a8
+#  GD -> IE against hidden and local variable referenced through IE too
+ [0-9a-f]+:	[0-9a-f]+[ 	]+rur.threadptr	a8
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 30c <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a10, a10, a8
+#  GD against hidden but not local variable
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a8, 310 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 314 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+callx8	a8
+#  GD -> IE against hidden but not local variable referenced through IE too
+ [0-9a-f]+:	[0-9a-f]+[ 	]+rur.threadptr	a8
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 31c <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a10, a10, a8
+#  LD
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a8, 320 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a10, 324 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+callx8	a8
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a12, 328 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a12, a12, a10
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a13, 32c <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a13, a13, a10
+#  LD against hidden and local variables
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a12, 330 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a12, a12, a10
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a13, 334 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a13, a13, a10
+#  LD against hidden but not local variables
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a12, 338 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a12, a12, a10
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a13, 33c <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a13, a13, a10
+#  IE against global var
+ [0-9a-f]+:	[0-9a-f]+[ 	]+rur.threadptr	a2
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a3, 340 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a3, a3, a2
+#  IE against local var
+ [0-9a-f]+:	[0-9a-f]+[ 	]+rur.threadptr	a4
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a5, 344 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a5, a5, a4
+#  IE against hidden and local var
+ [0-9a-f]+:	[0-9a-f]+[ 	]+rur.threadptr	a6
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a7, 348 <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a7, a7, a6
+#  IE against hidden but not local var
+ [0-9a-f]+:	[0-9a-f]+[ 	]+rur.threadptr	a8
+ [0-9a-f]+:	[0-9a-f]+[ 	]+l32r	a9, 34c <.*>
+ [0-9a-f]+:	[0-9a-f]+[ 	]+add.*	a9, a9, a8
+#
+ [0-9a-f]+:	[0-9a-f]+[ 	]+retw.*