From 77a69ff840d60cca73624e16e5b2dd5217a6037e Mon Sep 17 00:00:00 2001 From: Jiong Wang Date: Thu, 16 Jul 2015 15:46:21 +0100 Subject: [PATCH] [AArch64][3/3] LD support BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 --- bfd/ChangeLog | 12 ++++++++++++ bfd/elfnn-aarch64.c | 18 +++++++++++++++++- bfd/elfxx-aarch64.c | 2 ++ ld/testsuite/ChangeLog | 6 ++++++ ld/testsuite/ld-aarch64/aarch64-elf.exp | 1 + ld/testsuite/ld-aarch64/tls-tiny-ld.d | 8 ++++++++ ld/testsuite/ld-aarch64/tls-tiny-ld.s | 7 +++++++ 7 files changed, 53 insertions(+), 1 deletion(-) create mode 100644 ld/testsuite/ld-aarch64/tls-tiny-ld.d create mode 100644 ld/testsuite/ld-aarch64/tls-tiny-ld.s diff --git a/bfd/ChangeLog b/bfd/ChangeLog index ffb470f0623..0d99205217c 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,15 @@ +2015-07-16 Jiong Wang + + * elfnn-aarch64.c (IS_AARCH64_TLS_RELOC): Recognize + BFD_RELOC_AARCH64_TLSLD_ADR_PREL21. + (aarch64_reloc_got_type): Ditto. + (elfNN_aarch64_final_link_relocate): Ditto. + (elfNN_aarch64_relocate_section): Ditto. + (elfNN_aarch64_gc_sweep_hook): Ditto. + (elfNN_aarch64_check_relocs): Ditto. + * elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Ditto. + (_bfd_aarch64_elf_resolve_relocation): Ditto. + 2015-07-16 Jiong Wang * reloc.c (BFD_RELOC_AARCH64_TLSLD_ADR_PREL21): New entry. diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c index a1d926f4f76..f1828605824 100644 --- a/bfd/elfnn-aarch64.c +++ b/bfd/elfnn-aarch64.c @@ -174,6 +174,7 @@ || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC \ || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC \ || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19 \ + || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 \ || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12 \ || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12 \ || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC \ @@ -4105,6 +4106,7 @@ aarch64_reloc_got_type (bfd_reloc_code_real_type r_type) case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: + case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: return GOT_TLS_GD; case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC: @@ -5011,6 +5013,7 @@ elfNN_aarch64_final_link_relocate (reloc_howto_type *howto, case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: + case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: if (globals->root.sgot == NULL) return bfd_reloc_notsupported; @@ -5495,6 +5498,7 @@ elfNN_aarch64_relocate_section (bfd *output_bfd, case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: + case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx)) { bfd_boolean need_relocs = FALSE; @@ -5527,7 +5531,17 @@ elfNN_aarch64_relocate_section (bfd *output_bfd, * RELOC_SIZE (htab); bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); - if (indx == 0) + if (elfNN_aarch64_bfd_reloc_from_type (r_type) + == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21) + { + /* For local dynamic, don't generate DTPREL in any case. + Initialize the DTPREL slot into zero, so we get module + base address when invoke runtime TLS resolver. */ + bfd_put_NN (output_bfd, 0, + globals->root.sgot->contents + off + + GOT_ENTRY_SIZE); + } + else if (indx == 0) { bfd_put_NN (output_bfd, relocation - dtpoff_base (info), @@ -6011,6 +6025,7 @@ elfNN_aarch64_gc_sweep_hook (bfd *abfd, case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: + case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12: case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12: case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC: @@ -6483,6 +6498,7 @@ elfNN_aarch64_check_relocs (bfd *abfd, struct bfd_link_info *info, case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: + case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12: case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12: case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC: diff --git a/bfd/elfxx-aarch64.c b/bfd/elfxx-aarch64.c index 7b1a3946c49..5b2af2a0839 100644 --- a/bfd/elfxx-aarch64.c +++ b/bfd/elfxx-aarch64.c @@ -241,6 +241,7 @@ _bfd_aarch64_elf_put_addend (bfd *abfd, case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: + case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: contents = _bfd_aarch64_reencode_adr_imm (contents, addend); break; @@ -371,6 +372,7 @@ _bfd_aarch64_elf_resolve_relocation (bfd_reloc_code_real_type r_type, case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: + case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: case BFD_RELOC_AARCH64_TSTBR14: if (weak_undef_p) value = place; diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog index c279cbdec7a..31c5e0a4a8f 100644 --- a/ld/testsuite/ChangeLog +++ b/ld/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2015-07-16 Jiong Wang + + * ld-aarch64/tls-tiny-ld.s: New file. + * ld-aarch64/tls-tiny-ld.d: Ditto. + * ld-aarch64/aarch64-elf.exp: Run new test. + 2015-07-14 H.J. Lu * ld-elf/zlibbegin.rS: Updated to .debug_.* with the diff --git a/ld/testsuite/ld-aarch64/aarch64-elf.exp b/ld/testsuite/ld-aarch64/aarch64-elf.exp index ac21d14956c..de3dcf7f02c 100644 --- a/ld/testsuite/ld-aarch64/aarch64-elf.exp +++ b/ld/testsuite/ld-aarch64/aarch64-elf.exp @@ -146,6 +146,7 @@ run_dump_test "tls-tiny-desc" run_dump_test "tls-tiny-desc-ie" run_dump_test "tls-tiny-desc-le" run_dump_test "tls-tiny-ie" +run_dump_test "tls-tiny-ld" run_dump_test "tlsle" run_dump_test "tlsle-symbol-offset" run_dump_test "gc-got-relocs" diff --git a/ld/testsuite/ld-aarch64/tls-tiny-ld.d b/ld/testsuite/ld-aarch64/tls-tiny-ld.d new file mode 100644 index 00000000000..f2cb60c50ca --- /dev/null +++ b/ld/testsuite/ld-aarch64/tls-tiny-ld.d @@ -0,0 +1,8 @@ +#source: tls-tiny-ld.s +#ld: -T relocs.ld -shared +#readelf: -Wr + +Relocation section '\.rela\.dyn' at offset 0x10070 contains 2 entries: + Offset Info Type Symbol's Value Symbol's Name \+ Addend +0000000000000000 0000000000000000 R_AARCH64_NONE 0 +0000000000020008 0000000200000404 R_AARCH64_TLS_DTPMOD64 0000000000000000 dummy \+ 0 diff --git a/ld/testsuite/ld-aarch64/tls-tiny-ld.s b/ld/testsuite/ld-aarch64/tls-tiny-ld.s new file mode 100644 index 00000000000..c298b9de053 --- /dev/null +++ b/ld/testsuite/ld-aarch64/tls-tiny-ld.s @@ -0,0 +1,7 @@ +// Test file for AArch64 LD -- tlsldm + + .text +func: + add x1, x2, x3 + // BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 + adr x0, :tlsldm:dummy -- 2.30.2