commit 45965137bee4946dca3cd99285f2a7afe6b99aeb Author: Alan Modra Date: Wed Mar 5 19:57:39 2014 +1030 Support R_PPC64_ADDR64_LOCAL This adds support for "func@localentry", an expression that returns the ELFv2 local entry point address of function "func". I've excluded dynamic relocation support because that obviously would require glibc changes. include/elf/ * ppc64.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define. bfd/ * elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_ADDR64_LOCAL entry. (ppc64_elf_reloc_type_lookup): Support R_PPC64_ADDR64_LOCAL. (ppc64_elf_check_relocs): Likewise. (ppc64_elf_relocate_section): Likewise. * Add BFD_RELOC_PPC64_ADDR64_LOCAL. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. gas/ * config/tc-ppc.c (ppc_elf_suffix): Support @localentry. (md_apply_fix): Support R_PPC64_ADDR64_LOCAL. ld/testsuite/ * ld-powerpc/elfv2-2a.s, ld-powerpc/elfv2-2b.s: New files. * ld-powerpc/elfv2-2exe.d, ld-powerpc/elfv2-2so.d: New files. * ld-powerpc/powerpc.exp: Run new test. elfcpp/ * powerpc.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define. gold/ * powerpc.cc (Target_powerpc::Scan::local, global): Support R_PPC64_ADDR64_LOCAL. (Target_powerpc::Relocate::relocate): Likewise. ### a/bfd/ChangeLog ### b/bfd/ChangeLog ## -1,3 +1,13 @@ +2014-03-05 Alan Modra + + * elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_ADDR64_LOCAL entry. + (ppc64_elf_reloc_type_lookup): Support R_PPC64_ADDR64_LOCAL. + (ppc64_elf_check_relocs): Likewise. + (ppc64_elf_relocate_section): Likewise. + * Add BFD_RELOC_PPC64_ADDR64_LOCAL. + * bfd-in2.h: Regenerate. + * libbfd.h: Regenerate. + 2014-03-04 Heiher * elfxx-mips.c (mips_set_isa_flags): Use E_MIPS_ARCH_64R2 for --- a/bfd/bfd-in2.h +++ b/bfd/bfd-in2.h @@ -3259,6 +3259,7 @@ instruction. */ BFD_RELOC_PPC64_PLTGOT16_LO_DS, BFD_RELOC_PPC64_ADDR16_HIGH, BFD_RELOC_PPC64_ADDR16_HIGHA, + BFD_RELOC_PPC64_ADDR64_LOCAL, /* PowerPC and PowerPC64 thread-local storage relocations. */ BFD_RELOC_PPC_TLS, --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -2095,6 +2095,21 @@ static reloc_howto_type ppc64_elf_howto_raw[] = { 0xffff, /* dst_mask */ FALSE), /* pcrel_offset */ + /* Like ADDR64, but use local entry point of function. */ + HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ + 0, /* rightshift */ + 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ + 64, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_PPC64_ADDR64_LOCAL", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + ONES (64), /* dst_mask */ + FALSE), /* pcrel_offset */ + /* GNU extension to record C++ vtable hierarchy. */ HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ 0, /* rightshift */ @@ -2383,6 +2398,8 @@ ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, break; case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; break; + case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; + break; case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; break; case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; @@ -5400,6 +5417,21 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, case R_PPC64_REL16_HA: break; + /* Not supported as a dynamic relocation. */ + case R_PPC64_ADDR64_LOCAL: + if (info->shared) + { + if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) + ppc_howto_init (); + info->callbacks->einfo (_("%P: %H: %s reloc unsupported " + "in shared libraries and PIEs.\n"), + abfd, sec, rel->r_offset, + ppc64_elf_howto_table[r_type]->name); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + break; + case R_PPC64_TOC16: case R_PPC64_TOC16_DS: htab->do_multi_toc = 1; @@ -14134,6 +14166,12 @@ ppc64_elf_relocate_section (bfd *output_bfd, addend -= htab->elf.tls_sec->vma + DTP_OFFSET; break; + case R_PPC64_ADDR64_LOCAL: + addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL + ? h->elf.other + : sym->st_other); + break; + case R_PPC64_DTPMOD64: relocation = 1; addend = 0; --- a/bfd/libbfd.h +++ b/bfd/libbfd.h @@ -1401,6 +1401,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@", "BFD_RELOC_PPC64_PLTGOT16_LO_DS", "BFD_RELOC_PPC64_ADDR16_HIGH", "BFD_RELOC_PPC64_ADDR16_HIGHA", + "BFD_RELOC_PPC64_ADDR64_LOCAL", "BFD_RELOC_PPC_TLS", "BFD_RELOC_PPC_TLSGD", "BFD_RELOC_PPC_TLSLD", --- a/bfd/reloc.c +++ b/bfd/reloc.c @@ -2899,6 +2899,8 @@ ENUMX BFD_RELOC_PPC64_ADDR16_HIGH ENUMX BFD_RELOC_PPC64_ADDR16_HIGHA +ENUMX + BFD_RELOC_PPC64_ADDR64_LOCAL ENUMDOC Power(rs6000) and PowerPC relocations. ### a/include/elf/ChangeLog ### b/include/elf/ChangeLog ## -1,3 +1,7 @@ +2014-03-05 Alan Modra + + * ppc64.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define. + 2014-02-06 Andrew Pinski * mips.h (E_MIPS_MACH_OCTEON3): New machine flag. --- a/include/elf/ppc64.h +++ b/include/elf/ppc64.h @@ -149,6 +149,10 @@ START_RELOC_NUMBERS (elf_ppc64_reloc_type) RELOC_NUMBER (R_PPC64_DTPREL16_HIGH, 114) RELOC_NUMBER (R_PPC64_DTPREL16_HIGHA, 115) +/* Added for ELFv2. */ + RELOC_NUMBER (R_PPC64_REL24_NOTOC, 116) + RELOC_NUMBER (R_PPC64_ADDR64_LOCAL, 117) + #ifndef RELOC_MACROS_GEN_FUNC /* Fake relocation only used internally by ld. */ RELOC_NUMBER (R_PPC64_LO_DS_OPT, 128)