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https://sourceware.org/git/binutils-gdb.git
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PowerPC64 GOT indirect to GOT relative optimisation
This implements an optimisation that converts sequences like addis r9,r2,sym@got@ha ld r3,sym@got@l(r9) to addis r9,r2,sym@toc@ha addi r3,r9,sym@toc@l when "sym" is locally defined and can't be overridden. bfd/ * elf64-ppc.c (struct ppc64_elf_obj_tdata): Add has_gotrel. (struct _ppc64_elf_section_data): Likewise. (ppc64_elf_check_relocs): Set above fields. (ppc64_elf_edit_toc): Add a pass over GOT relocs. (ppc64_elf_relocate_section): Edit GOT indirect to GOT relative when possible. ld/ * testsuite/ld-powerpc/elfv2exe.d: Update. * testsuite/ld-powerpc/elfv2so.d: Update. * testsuite/ld-powerpc/tocopt.d: Update. * testsuite/ld-powerpc/tocopt.s: Update. * testsuite/ld-powerpc/tocopt5.d: Update. * testsuite/ld-powerpc/tocopt5.s: Update. * testsuite/ld-powerpc/tocopt7.d: Update. * testsuite/ld-powerpc/tocopt7.s: Update. * testsuite/ld-powerpc/tocopt8.d: Update. * testsuite/ld-powerpc/tocopt8.s: Update.
This commit is contained in:
Alan Modra
parent
8107ddcea1
commit
066f4018ae
@ -1,3 +1,12 @@
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2019-04-30 Alan Modra <amodra@gmail.com>
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* elf64-ppc.c (struct ppc64_elf_obj_tdata): Add has_gotrel.
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(struct _ppc64_elf_section_data): Likewise.
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(ppc64_elf_check_relocs): Set above fields.
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(ppc64_elf_edit_toc): Add a pass over GOT relocs.
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(ppc64_elf_relocate_section): Edit GOT indirect to GOT relative
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when possible.
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2019-04-26 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/24486
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210
bfd/elf64-ppc.c
210
bfd/elf64-ppc.c
@ -1594,6 +1594,9 @@ struct ppc64_elf_obj_tdata
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/* Set if toc/got ha relocs detected not using r2, or lo reloc
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instruction not one we handle. */
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unsigned int unexpected_toc_insn : 1;
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/* Set if got relocs that can be optimised are present in this file. */
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unsigned int has_gotrel : 1;
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};
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#define ppc64_elf_tdata(bfd) \
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@ -1793,6 +1796,9 @@ struct _ppc64_elf_section_data
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/* Flag set when PLTCALL relocs are detected. */
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unsigned int has_pltcall:1;
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/* Flag set when section has GOT relocations that can be optimised. */
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unsigned int has_gotrel:1;
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};
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#define ppc64_elf_section_data(sec) \
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@ -4383,14 +4389,19 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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tls_type = TLS_TLS | TLS_DTPREL;
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dogottls:
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sec->has_tls_reloc = 1;
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/* Fall through */
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goto dogot;
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case R_PPC64_GOT16:
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case R_PPC64_GOT16_DS:
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case R_PPC64_GOT16_HA:
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case R_PPC64_GOT16_LO_DS:
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ppc64_elf_tdata (abfd)->has_gotrel = 1;
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ppc64_elf_section_data (sec)->has_gotrel = 1;
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/* Fall through. */
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case R_PPC64_GOT16:
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case R_PPC64_GOT16_HI:
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case R_PPC64_GOT16_LO:
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case R_PPC64_GOT16_LO_DS:
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dogot:
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/* This symbol requires a global offset table entry. */
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sec->has_toc_reloc = 1;
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if (r_type == R_PPC64_GOT_TLSLD16
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@ -8579,6 +8590,161 @@ ppc64_elf_edit_toc (struct bfd_link_info *info)
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free (skip);
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}
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/* Look for cases where we can change an indirect GOT access to
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a GOT relative access, possibly reducing the number of GOT
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entries. */
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for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
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{
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asection *sec;
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Elf_Internal_Shdr *symtab_hdr;
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Elf_Internal_Sym *local_syms;
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Elf_Internal_Rela *relstart, *rel;
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bfd_vma got;
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if (!is_ppc64_elf (ibfd))
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continue;
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if (!ppc64_elf_tdata (ibfd)->has_gotrel)
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continue;
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sec = ppc64_elf_tdata (ibfd)->got;
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got = sec->output_section->vma + sec->output_offset + 0x8000;
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local_syms = NULL;
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symtab_hdr = &elf_symtab_hdr (ibfd);
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for (sec = ibfd->sections; sec != NULL; sec = sec->next)
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{
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if (sec->reloc_count == 0
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|| !ppc64_elf_section_data (sec)->has_gotrel
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|| discarded_section (sec))
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continue;
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relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
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info->keep_memory);
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if (relstart == NULL)
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{
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got_error_ret:
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if (local_syms != NULL
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&& symtab_hdr->contents != (unsigned char *) local_syms)
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free (local_syms);
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if (sec != NULL
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&& relstart != NULL
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&& elf_section_data (sec)->relocs != relstart)
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free (relstart);
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return FALSE;
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}
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for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
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{
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enum elf_ppc64_reloc_type r_type;
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unsigned long r_symndx;
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Elf_Internal_Sym *sym;
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asection *sym_sec;
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struct elf_link_hash_entry *h;
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struct got_entry *ent;
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bfd_vma val;
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unsigned char buf[4];
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unsigned int insn;
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r_type = ELF64_R_TYPE (rel->r_info);
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switch (r_type)
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{
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default:
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continue;
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case R_PPC64_GOT16_DS:
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case R_PPC64_GOT16_HA:
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case R_PPC64_GOT16_LO_DS:
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break;
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}
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r_symndx = ELF64_R_SYM (rel->r_info);
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if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
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r_symndx, ibfd))
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goto got_error_ret;
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if (!SYMBOL_REFERENCES_LOCAL (info, h))
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continue;
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if (h != NULL)
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val = h->root.u.def.value;
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else
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val = sym->st_value;
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val += rel->r_addend;
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val += sym_sec->output_section->vma + sym_sec->output_offset;
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switch (r_type)
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{
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default:
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continue;
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case R_PPC64_GOT16_DS:
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if (val - got + 0x8000 >= 0x10000)
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continue;
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if (!bfd_get_section_contents (ibfd, sec, buf,
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rel->r_offset & ~3, 4))
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goto got_error_ret;
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insn = bfd_get_32 (ibfd, buf);
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if ((insn & (0x3f << 26 | 0x3)) != 58u << 26 /* ld */)
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continue;
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break;
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case R_PPC64_GOT16_HA:
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if (val - got + 0x80008000ULL >= 0x100000000ULL)
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continue;
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if (!bfd_get_section_contents (ibfd, sec, buf,
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rel->r_offset & ~3, 4))
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goto got_error_ret;
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insn = bfd_get_32 (ibfd, buf);
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if (((insn & ((0x3f << 26) | 0x1f << 16))
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!= ((15u << 26) | (2 << 16)) /* addis rt,2,imm */))
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continue;
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break;
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case R_PPC64_GOT16_LO_DS:
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if (val - got + 0x80008000ULL >= 0x100000000ULL)
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continue;
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if (!bfd_get_section_contents (ibfd, sec, buf,
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rel->r_offset & ~3, 4))
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goto got_error_ret;
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insn = bfd_get_32 (ibfd, buf);
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if ((insn & (0x3f << 26 | 0x3)) != 58u << 26 /* ld */)
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continue;
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break;
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}
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if (h != NULL)
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ent = h->got.glist;
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else
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{
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struct got_entry **local_got_ents = elf_local_got_ents (ibfd);
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ent = local_got_ents[r_symndx];
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}
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for (; ent != NULL; ent = ent->next)
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if (ent->addend == rel->r_addend
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&& ent->owner == ibfd
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&& ent->tls_type == 0)
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break;
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BFD_ASSERT (ent && ent->got.refcount > 0);
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ent->got.refcount -= 1;
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}
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if (elf_section_data (sec)->relocs != relstart)
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free (relstart);
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}
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if (local_syms != NULL
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&& symtab_hdr->contents != (unsigned char *) local_syms)
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{
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if (!info->keep_memory)
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free (local_syms);
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else
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symtab_hdr->contents = (unsigned char *) local_syms;
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}
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}
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return TRUE;
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}
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@ -14397,6 +14563,44 @@ ppc64_elf_relocate_section (bfd *output_bfd,
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goto copy_reloc;
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}
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break;
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case R_PPC64_GOT16_DS:
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from = TOCstart + htab->sec_info[input_section->id].toc_off;
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if (relocation + addend - from + 0x8000 < 0x10000
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&& SYMBOL_REFERENCES_LOCAL (info, &h->elf))
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{
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insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
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if ((insn & (0x3f << 26 | 0x3)) == 58u << 26 /* ld */)
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{
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insn += (14u << 26) - (58u << 26);
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bfd_put_32 (input_bfd, insn, contents + (rel->r_offset & ~3));
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r_type = R_PPC64_TOC16;
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rel->r_info = ELF64_R_INFO (r_symndx, r_type);
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}
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}
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break;
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case R_PPC64_GOT16_LO_DS:
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case R_PPC64_GOT16_HA:
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from = TOCstart + htab->sec_info[input_section->id].toc_off;
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if (relocation + addend - from + 0x80008000ULL < 0x100000000ULL
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&& SYMBOL_REFERENCES_LOCAL (info, &h->elf))
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{
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insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
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if ((insn & (0x3f << 26 | 0x3)) == 58u << 26 /* ld */)
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{
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insn += (14u << 26) - (58u << 26);
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bfd_put_32 (input_bfd, insn, contents + (rel->r_offset & ~3));
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r_type = R_PPC64_TOC16_LO;
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rel->r_info = ELF64_R_INFO (r_symndx, r_type);
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}
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else if ((insn & (0x3f << 26)) == 15u << 26 /* addis */)
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{
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r_type = R_PPC64_TOC16_HA;
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rel->r_info = ELF64_R_INFO (r_symndx, r_type);
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}
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}
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break;
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}
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/* Set `addend'. */
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13
ld/ChangeLog
13
ld/ChangeLog
@ -1,3 +1,16 @@
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2019-04-30 Alan Modra <amodra@gmail.com>
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* testsuite/ld-powerpc/elfv2exe.d: Update.
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* testsuite/ld-powerpc/elfv2so.d: Update.
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* testsuite/ld-powerpc/tocopt.d: Update.
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* testsuite/ld-powerpc/tocopt.s: Update.
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* testsuite/ld-powerpc/tocopt5.d: Update.
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* testsuite/ld-powerpc/tocopt5.s: Update.
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* testsuite/ld-powerpc/tocopt7.d: Update.
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* testsuite/ld-powerpc/tocopt7.s: Update.
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* testsuite/ld-powerpc/tocopt8.d: Update.
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* testsuite/ld-powerpc/tocopt8.s: Update.
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2019-04-30 Alan Modra <amodra@gmail.com>
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* ld.texi (How GNU properties are merged): Avoid pod2man error.
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@ -34,7 +34,7 @@ Disassembly of section \.text:
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.*: (e8 62 80 08|08 80 62 e8) ld r3,-32760\(r2\)
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.*: (4b .. .. ..|.. .. .. 4b) bl .*\.plt_branch\.f2>
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.*: (60 00 00 00|00 00 00 60) nop
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.*: (e8 62 80 10|10 80 62 e8) ld r3,-32752\(r2\)
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.*: (38 62 80 10|10 80 62 38) addi r3,r2,-32752
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.*: (48 .. .. ..|.. .. .. 48) bl 10008888 <f3>
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.*: (60 00 00 00|00 00 00 60) nop
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.*: (4b .. .. ..|.. .. .. 4b) bl .*\.plt_branch\.f4>
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@ -9,35 +9,35 @@ Disassembly of section \.text:
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.* <.*\.plt_call\.f4>:
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.*: (f8 41 00 18|18 00 41 f8) std r2,24\(r1\)
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.*: (e9 82 80 40|40 80 82 e9) ld r12,-32704\(r2\)
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.*: (e9 82 80 38|38 80 82 e9) ld r12,-32712\(r2\)
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.*: (7d 89 03 a6|a6 03 89 7d) mtctr r12
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.*: (4e 80 04 20|20 04 80 4e) bctr
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\.\.\.
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.* <.*\.plt_call\.f3>:
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.*: (f8 41 00 18|18 00 41 f8) std r2,24\(r1\)
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.*: (e9 82 80 30|30 80 82 e9) ld r12,-32720\(r2\)
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.*: (e9 82 80 28|28 80 82 e9) ld r12,-32728\(r2\)
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.*: (7d 89 03 a6|a6 03 89 7d) mtctr r12
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.*: (4e 80 04 20|20 04 80 4e) bctr
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\.\.\.
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.* <.*\.plt_call\.f5>:
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.*: (f8 41 00 18|18 00 41 f8) std r2,24\(r1\)
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.*: (e9 82 80 28|28 80 82 e9) ld r12,-32728\(r2\)
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.*: (e9 82 80 20|20 80 82 e9) ld r12,-32736\(r2\)
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.*: (7d 89 03 a6|a6 03 89 7d) mtctr r12
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.*: (4e 80 04 20|20 04 80 4e) bctr
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\.\.\.
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.* <.*\.plt_call\.f1>:
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.*: (f8 41 00 18|18 00 41 f8) std r2,24\(r1\)
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.*: (e9 82 80 48|48 80 82 e9) ld r12,-32696\(r2\)
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.*: (e9 82 80 40|40 80 82 e9) ld r12,-32704\(r2\)
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.*: (7d 89 03 a6|a6 03 89 7d) mtctr r12
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.*: (4e 80 04 20|20 04 80 4e) bctr
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\.\.\.
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.* <.*\.plt_call\.f2>:
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.*: (f8 41 00 18|18 00 41 f8) std r2,24\(r1\)
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.*: (e9 82 80 38|38 80 82 e9) ld r12,-32712\(r2\)
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.*: (e9 82 80 30|30 80 82 e9) ld r12,-32720\(r2\)
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.*: (7d 89 03 a6|a6 03 89 7d) mtctr r12
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.*: (4e 80 04 20|20 04 80 4e) bctr
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\.\.\.
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@ -52,7 +52,7 @@ Disassembly of section \.text:
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.*: (e8 62 80 08|08 80 62 e8) ld r3,-32760\(r2\)
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.*: (4b .. .. ..|.. .. .. 4b) bl .*\.plt_call\.f2>
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.*: (e8 41 00 18|18 00 41 e8) ld r2,24\(r1\)
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.*: (e8 62 80 10|10 80 62 e8) ld r3,-32752\(r2\)
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.*: (38 62 80 48|48 80 62 38) addi r3,r2,-32696
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.*: (4b .. .. ..|.. .. .. 4b) bl .*\.plt_call\.f3>
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.*: (e8 41 00 18|18 00 41 e8) ld r2,24\(r1\)
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.*: (4b .. .. ..|.. .. .. 4b) bl .*\.plt_call\.f4>
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@ -2,13 +2,13 @@
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.*: file format .*
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Contents of section \.text:
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100000b0 (3d220000|0000223d) (e9298018|188029e9) (3c820000|0000823c) (38a48020|2080a438) .*
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100000c0 (e8c50000|0000c5e8) (3fa00000|0000a03f) (3bbd8028|2880bd3b) (7c62e82a|2ae8627c) .*
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100000d0 (3d220000|0000223d) (39298033|33802939) (3c820000|0000823c) (38a48008|0880a438) .*
|
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100000b0 (3d220000|0000223d) (39298028|28802939) (3c820000|0000823c) (38a48018|1880a438) .*
|
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100000c0 (e8c50000|0000c5e8) (3fa00000|0000a03f) (3bbd8020|2080bd3b) (7c62e82a|2ae8627c) .*
|
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100000d0 (3d220000|0000223d) (3929802b|2b802939) (3c820000|0000823c) (38a48008|0880a438) .*
|
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100000e0 (e8c50000|0000c5e8) (3fa00000|0000a03f) (3bbd8010|1080bd3b) (7c62e82a|2ae8627c) .*
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Contents of section \.got:
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10010100 (00000000|00810110) (10018100|00000000) (00000000|34010110) (10010134|00000000) .*
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10010110 (00000000|35010110) (10010135|00000000) (00000000|30010110) (10010130|00000000) .*
|
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10010120 (00000000|31010110) (10010131|00000000) (00000000|32010110) (10010132|00000000) .*
|
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10010100 (00000000|00810110) (10018100|00000000) (00000000|2c010110) (1001012c|00000000) .*
|
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10010110 (00000000|2d010110) (1001012d|00000000) (00000000|29010110) (10010129|00000000) .*
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10010120 (00000000|2a010110) (1001012a|00000000) .*
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Contents of section \.sdata:
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10010130 01020304 0506 .*
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10010128 01020304 0506 .*
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|
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@ -24,7 +24,8 @@ x6:
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.text
|
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_start:
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# no need for got entry, optimise to nop,addi
|
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# note: ld doesn't yet do got optimisation, so we get nop,ld
|
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# note that due to unexpected toc/got insns the full optimisation is
|
||||
# not done. see tocopt5 for test without unexpected insns.
|
||||
addis 9,2,x1@got@ha
|
||||
ld 9,x1@got@l(9)
|
||||
# must keep got entry, optimise to nop,addi,ld
|
||||
|
||||
@ -2,12 +2,11 @@
|
||||
.*: file format .*
|
||||
|
||||
Contents of section \.text:
|
||||
100000b0 (60000000|00000060) (e9228018|188022e9) (60000000|00000060) (38a28020|2080a238) .*
|
||||
100000c0 (e8c50000|0000c5e8) (60000000|00000060) (3922802b|2b802239) (60000000|00000060) .*
|
||||
100000b0 (60000000|00000060) (39228020|20802239) (60000000|00000060) (38a28018|1880a238) .*
|
||||
100000c0 (e8c50000|0000c5e8) (60000000|00000060) (39228023|23802239) (60000000|00000060) .*
|
||||
100000d0 (38a28008|0880a238) (e8c50000|0000c5e8) .*
|
||||
Contents of section \.got:
|
||||
10010100 (00000000|00810110) (10018100|00000000) (00000000|2c010110) (1001012c|00000000) .*
|
||||
10010110 (00000000|2d010110) (1001012d|00000000) (00000000|28010110) (10010128|00000000) .*
|
||||
10010120 (00000000|29010110) (10010129|00000000) .*
|
||||
10010100 (00000000|00810110) (10018100|00000000) (00000000|24010110) (10010124|00000000) .*
|
||||
10010110 (00000000|25010110) (10010125|00000000) (00000000|21010110) (10010121|00000000) .*
|
||||
Contents of section \.sdata:
|
||||
10010128 01020304 0506 .*
|
||||
10010120 01020304 0506 .*
|
||||
|
||||
@ -24,7 +24,6 @@ x6:
|
||||
.text
|
||||
_start:
|
||||
# no need for got entry, optimise to nop,addi
|
||||
# note: ld doesn't yet do got optimisation, so we get nop,ld
|
||||
addis 9,2,x1@got@ha
|
||||
ld 9,x1@got@l(9)
|
||||
# must keep got entry, optimise to nop,addi,ld
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
.*: file format .*
|
||||
|
||||
Contents of section \.text:
|
||||
100000b0 (0000223d|3d220000) (288029e9|e9298028) (0000823c|3c820000) (3080a438|38a48030) .*
|
||||
100000b0 (0000223d|3d220000) (40802939|39298040) (0000823c|3c820000) (3080a438|38a48030) .*
|
||||
100000c0 (0000c5e8|e8c50000) (0000823f|3f820000) (29803ce9|e93c8029) (0000223d|3d220000) .*
|
||||
100000d0 (108029e9|e9298010) (0000823c|3c820000) (1880a438|38a48018) (0000c5e8|e8c50000) .*
|
||||
100000e0 (0000823f|3f820000) (11803ce9|e93c8011) (0000823c|3c820000) (3080a438|38a48030) .*
|
||||
|
||||
@ -26,7 +26,6 @@ x6:
|
||||
.text
|
||||
_start:
|
||||
# no need for got entry, optimise to nop,addi
|
||||
# note: ld doesn't yet do got optimisation, so we get nop,ld
|
||||
addis 9,2,x1@got@ha
|
||||
ld 9,x1@got@l(9)
|
||||
# must keep got entry, optimise to nop,addi,ld
|
||||
|
||||
@ -2,28 +2,28 @@
|
||||
.*: file format .*
|
||||
|
||||
Contents of section \.text:
|
||||
100000b0 (00000060|60000000) (108022e9|e9228010) (00000060|60000000) (1880a238|38a28018) .*
|
||||
100000b0 (00000060|60000000) (20802239|39228020) (00000060|60000000) (1080a238|38a28010) .*
|
||||
100000c0 (0000c5e8|e8c50000) (00000060|60000000) (38802239|39228038) (00000060|60000000) .*
|
||||
100000d0 (0880a238|38a28008) (0000c5e8|e8c50000) (00000060|60000000) (088022e9|e9228008) .*
|
||||
100000e0 (00000060|60000000) (1880a238|38a28018) (0000c580|80c50000) (00000060|60000000) .*
|
||||
100000e0 (00000060|60000000) (1080a238|38a28010) (0000c580|80c50000) (00000060|60000000) .*
|
||||
100000f0 (20802281|81228020) (00000060|60000000) (0880a238|38a28008) (0000c580|80c50000) .*
|
||||
10000100 (00000060|60000000) (1880a238|38a28018) (0200c5e8|e8c50002) (00000060|60000000) .*
|
||||
10000100 (00000060|60000000) (1080a238|38a28010) (0200c5e8|e8c50002) (00000060|60000000) .*
|
||||
10000110 (228022e9|e9228022) (00000060|60000000) (0880a238|38a28008) (0200c5e8|e8c50002) .*
|
||||
10000120 (00000060|60000000) (1880a238|38a28018) (0000c5a0|a0c50000) (00000060|60000000) .*
|
||||
10000120 (00000060|60000000) (1080a238|38a28010) (0000c5a0|a0c50000) (00000060|60000000) .*
|
||||
10000130 (208022a1|a1228020) (00000060|60000000) (0880a238|38a28008) (0000c5a0|a0c50000) .*
|
||||
10000140 (00000060|60000000) (1880a238|38a28018) (0000c5a8|a8c50000) (00000060|60000000) .*
|
||||
10000140 (00000060|60000000) (1080a238|38a28010) (0000c5a8|a8c50000) (00000060|60000000) .*
|
||||
10000150 (208022a9|a9228020) (00000060|60000000) (0880a238|38a28008) (0000c5a8|a8c50000) .*
|
||||
10000160 (00000060|60000000) (1880a238|38a28018) (0000c588|88c50000) (00000060|60000000) .*
|
||||
10000160 (00000060|60000000) (1080a238|38a28010) (0000c588|88c50000) (00000060|60000000) .*
|
||||
10000170 (20802289|89228020) (00000060|60000000) (0880a238|38a28008) (0000c588|88c50000) .*
|
||||
10000180 (00000060|60000000) (1880a238|38a28018) (0000c5c0|c0c50000) (00000060|60000000) .*
|
||||
10000180 (00000060|60000000) (1080a238|38a28010) (0000c5c0|c0c50000) (00000060|60000000) .*
|
||||
10000190 (208022c1|c1228020) (00000060|60000000) (0880a238|38a28008) (0000c5c0|c0c50000) .*
|
||||
100001a0 (00000060|60000000) (1880a238|38a28018) (0000c5c8|c8c50000) (00000060|60000000) .*
|
||||
100001a0 (00000060|60000000) (1080a238|38a28010) (0000c5c8|c8c50000) (00000060|60000000) .*
|
||||
100001b0 (208022c9|c9228020) (00000060|60000000) (0880a238|38a28008) (0000c5c8|c8c50000) .*
|
||||
100001c0 (00000060|60000000) (1880a238|38a28018) (0100c5f4|f4c50001) (00000060|60000000) .*
|
||||
100001c0 (00000060|60000000) (1080a238|38a28010) (0100c5f4|f4c50001) (00000060|60000000) .*
|
||||
100001d0 (218022f5|f5228021) (00000060|60000000) (2080a238|38a28020) (0100c5f4|f4c50001) .*
|
||||
100001e0 (00000060|60000000) (1880a238|38a28018) (0200c5e4|e4c50002) (00000060|60000000) .*
|
||||
100001e0 (00000060|60000000) (1080a238|38a28010) (0200c5e4|e4c50002) (00000060|60000000) .*
|
||||
100001f0 (228022e5|e5228022) (00000060|60000000) (0880a238|38a28008) (0200c5e4|e4c50002) .*
|
||||
10000200 (00000060|60000000) (1880a238|38a28018) (0300c5e4|e4c50003) (00000060|60000000) .*
|
||||
10000200 (00000060|60000000) (1080a238|38a28010) (0300c5e4|e4c50003) (00000060|60000000) .*
|
||||
10000210 (238022e5|e5228023) (00000060|60000000) (0880a238|38a28008) (0300c5e4|e4c50003) .*
|
||||
10000220 (00000060|60000000) (208022f9|f9228020) (00000060|60000000) (0880a238|38a28008) .*
|
||||
10000230 (0000c5f8|f8c50000) (00000060|60000000) (20802291|91228020) (00000060|60000000) .*
|
||||
@ -39,7 +39,7 @@ Contents of section \.text:
|
||||
100002d0 (0300c5f4|f4c50003) .*
|
||||
Contents of section \.got:
|
||||
10010300 (00830110|00000000) (00000000|10018300) (40030110|00000000) (00000000|10010340) .*
|
||||
10010310 (20030110|00000000) (00000000|10010320) (28030110|00000000) (00000000|10010328) .*
|
||||
10010310 (28030110|00000000) (00000000|10010328) .*
|
||||
Contents of section \.sdata:
|
||||
10010320 (01000000|00000000) (00000000|00000001) (02000000|00000000) (00000000|00000002) .*
|
||||
10010330 (03000000|00000000) (00000000|00000003) (04000000|00000000) (00000000|00000004) .*
|
||||
|
||||
@ -23,7 +23,6 @@ x6:
|
||||
.text
|
||||
_start:
|
||||
# no need for got entry, optimise to nop,addi
|
||||
# note: ld doesn't yet do got optimisation, so we get nop,ld
|
||||
addis 9,2,x1@got@ha
|
||||
ld 9,x1@got@l(9)
|
||||
# must keep got entry, optimise to nop,addi,ld
|
||||
|
||||
Loading…
Reference in New Issue
Block a user