From 0d284dd0c1246b3408b74081aae12dc62b3d2352 Mon Sep 17 00:00:00 2001 From: Will Newton Date: Fri, 7 Jun 2013 18:57:00 +0000 Subject: aarch64: Add support for GNU indirect functions. Add support for STT_GNU_IFUNC symbols to the AArch64 bfd backend. The tests are ported from the ld-ifunc tests but are enabled for cross builds so can be run easily without hardware or a simulator. bfd/ChangeLog: 2013-06-07 Will Newton * configure: Regenerate. * configure.in: Build elf-ifunc.o for AArch64. * elf64-aarch64.c: Include objalloc.h. (elf64_aarch64_howto_dynrelocs): Add R_AARCH64_IRELATIVE howto. (struct elf64_aarch64_link_hash_table): Add members for handling R_AARCH64_IRELATIVE relocations. (elf_aarch64_local_htab_hash): New function. (elf_aarch64_local_htab_eq): New function. (elf_aarch64_get_local_sym_hash): New function. (elf64_aarch64_link_hash_table_create): Initialize local STT_GNU_IFUNC symbol hash. (elf64_aarch64_hash_table_free): Free local STT_GNU_IFUNC symbol hash. (elf64_aarch64_final_link_relocate): Add sym argument. Add support for handling STT_GNU_IFUNC symbols. (elf64_aarch64_gc_sweep_hook): Add support for garbage collecting references to STT_GNU_IFUNC symbols. (elf64_aarch64_adjust_dynamic_symbol): Add support for handling STT_GNU_IFUNC symbols. (elf64_aarch64_check_relocs): Add support for handling STT_GNU_IFUNC symbols. Ensure we don't increase plt.refcount from -1 to 0. (elf64_aarch64_post_process_headers): Call _bfd_elf_set_osabi. (elf64_aarch64_is_function_type): Remove function. (elf64_aarch64_allocate_dynrelocs): Call _bfd_elf_allocate_ifunc_dyn_relocs for STT_GNU_IFUNC symbols. (elf_aarch64_allocate_local_dynrelocs): New function. (elf64_aarch64_size_dynamic_sections): Call elf_aarch64_allocate_local_dynrelocs. Initialize next_irelative_index. (elf64_aarch64_create_small_pltn_entry): Add info argument. Add support for creating .iplt entries for STT_GNU_IFUNC symbols. (elf64_aarch64_finish_dynamic_symbol): Add support for handling STT_GNU_IFUNC symbols and .iplt. (elf_aarch64_finish_local_dynamic_symbol): New function. (elf64_aarch64_finish_dynamic_sections): Call elf_aarch64_finish_local_dynamic_symbol. (elf64_aarch64_add_symbol_hook): New function. include/elf/ChangeLog: 2013-06-07 Will Newton * aarch64.h: Add R_AARCH64_IRELATIVE reloc. ld/ChangeLog: 2013-06-07 Will Newton * emulparams/aarch64elf.sh: Add IREL_IN_PLT. ld/testsuite/ChangeLog: 2013-06-07 Will Newton * ld-ifunc/ifunc.exp: Enable ifunc tests for AArch64. * ld-aarch64/aarch64-elf.exp: Add ifunc tests. * ld-aarch64/ifunc-1-local.d: New file. * ld-aarch64/ifunc-1-local.s: Likewise. * ld-aarch64/ifunc-1.d: Likewise. * ld-aarch64/ifunc-1.s: Likewise. * ld-aarch64/ifunc-10.d: Likewise. * ld-aarch64/ifunc-10.s: Likewise. * ld-aarch64/ifunc-11.d: Likewise. * ld-aarch64/ifunc-11.s: Likewise. * ld-aarch64/ifunc-12.d: Likewise. * ld-aarch64/ifunc-12.s: Likewise. * ld-aarch64/ifunc-13.d: Likewise. * ld-aarch64/ifunc-13a.s: Likewise. * ld-aarch64/ifunc-13b.s: Likewise. * ld-aarch64/ifunc-14a.d: Likewise. * ld-aarch64/ifunc-14a.s: Likewise. * ld-aarch64/ifunc-14b.d: Likewise. * ld-aarch64/ifunc-14b.s: Likewise. * ld-aarch64/ifunc-14c.d: Likewise. * ld-aarch64/ifunc-14c.s: Likewise. * ld-aarch64/ifunc-14d.d: Likewise. * ld-aarch64/ifunc-14e.d: Likewise. * ld-aarch64/ifunc-14f.d: Likewise. * ld-aarch64/ifunc-15.d: Likewise. * ld-aarch64/ifunc-15.s: Likewise. * ld-aarch64/ifunc-16.d: Likewise. * ld-aarch64/ifunc-16.s: Likewise. * ld-aarch64/ifunc-17a.d: Likewise. * ld-aarch64/ifunc-17a.s: Likewise. * ld-aarch64/ifunc-17b.d: Likewise. * ld-aarch64/ifunc-17b.s: Likewise. * ld-aarch64/ifunc-18a.d: Likewise. * ld-aarch64/ifunc-18a.s: Likewise. * ld-aarch64/ifunc-18b.d: Likewise. * ld-aarch64/ifunc-18b.s: Likewise. * ld-aarch64/ifunc-19a.d: Likewise. * ld-aarch64/ifunc-19a.s: Likewise. * ld-aarch64/ifunc-19b.d: Likewise. * ld-aarch64/ifunc-19b.s: Likewise. * ld-aarch64/ifunc-2-local.d: Likewise. * ld-aarch64/ifunc-2-local.s: Likewise. * ld-aarch64/ifunc-2.d: Likewise. * ld-aarch64/ifunc-2.s: Likewise. * ld-aarch64/ifunc-20.d: Likewise. * ld-aarch64/ifunc-20.s: Likewise. * ld-aarch64/ifunc-3.s: Likewise. * ld-aarch64/ifunc-3a.d: Likewise. * ld-aarch64/ifunc-3b.d: Likewise. * ld-aarch64/ifunc-4.d: Likewise. * ld-aarch64/ifunc-4.s: Likewise. * ld-aarch64/ifunc-4a.d: Likewise. * ld-aarch64/ifunc-5-local.s: Likewise. * ld-aarch64/ifunc-5.s: Likewise. * ld-aarch64/ifunc-5a-local.d: Likewise. * ld-aarch64/ifunc-5a.d: Likewise. * ld-aarch64/ifunc-5b-local.d: Likewise. * ld-aarch64/ifunc-5b.d: Likewise. * ld-aarch64/ifunc-5r-local.d: Likewise. * ld-aarch64/ifunc-6.s: Likewise. * ld-aarch64/ifunc-6a.d: Likewise. * ld-aarch64/ifunc-6b.d: Likewise. * ld-aarch64/ifunc-7.s: Likewise. * ld-aarch64/ifunc-7a.d: Likewise. * ld-aarch64/ifunc-7b.d: Likewise. * ld-aarch64/ifunc-8.d: Likewise. * ld-aarch64/ifunc-8a.s: Likewise. * ld-aarch64/ifunc-8b.s: Likewise. * ld-aarch64/ifunc-9.d: Likewise. * ld-aarch64/ifunc-9.s: Likewise. --- include/elf/ChangeLog | 4 ++++ include/elf/aarch64.h | 3 ++- 2 files changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog index dcbe68633..e8cfea521 100644 --- a/include/elf/ChangeLog +++ b/include/elf/ChangeLog @@ -1,3 +1,7 @@ +2013-06-07 Will Newton + + * aarch64.h: Add R_AARCH64_IRELATIVE reloc. + 2013-06-06 Maciej W. Rozycki * mips.h (ELF_ST_SET_MIPS_PIC): Clear any STO_MIPS16 setting. diff --git a/include/elf/aarch64.h b/include/elf/aarch64.h index a7b86c10e..ebbdf8c89 100644 --- a/include/elf/aarch64.h +++ b/include/elf/aarch64.h @@ -208,7 +208,8 @@ RELOC_NUMBER (R_AARCH64_TLS_DTPMOD64, 1028) RELOC_NUMBER (R_AARCH64_TLS_DTPREL64, 1029) RELOC_NUMBER (R_AARCH64_TLS_TPREL64, 1030) RELOC_NUMBER (R_AARCH64_TLSDESC, 1031) -FAKE_RELOC (R_AARCH64_dyn_max, 1032) +RELOC_NUMBER (R_AARCH64_IRELATIVE, 1032) +FAKE_RELOC (R_AARCH64_dyn_max, 1033) END_RELOC_NUMBERS (R_AARCH64_end) -- cgit v1.2.3