bfd/
* elf64-ppc.c (struct ppc_link_hash_table): Add plt_static_chain.
(build_plt_stub): Add plt_static_chain param, don't load r11 if false.
(build_tls_get_addr_stub): Likewise.
(ppc_build_one_stub): Update calls to above.
(ppc_size_one_stub): Adjust stub size.
(ppc64_elf_size_stubs): Add plt_static_chain param, save to htab.
* elf64-ppc.h (ppc64_elf_size_stubs): Update prototype.
ld/
* emultempl/ppc64elf.em (plt_static_chain): New var.
(gld${EMULATION_NAME}_after_allocation): Pass to ppc64_elf_size_stubs.
(PARSE_AND_LIST_PROLOGUE, PARSE_AND_LIST_LONGOPTS,
PARSE_AND_LIST_OPTIONS, PARSE_AND_LIST_ARGS_CASES): Handle
--plt-static-chain and --no-plt-static-chain.
ld/testsuite/
* ld-powerpc/tlsexe.d, * ld-powerpc/tlsexe.g. *ld-powerpc/tlsexe.r,
* ld-powerpc/tlsexetoc.d, * ld-powerpc/tlsexetoc.g,
* ld-powerpc/tlsexetoc.r, * ld-powerpc/tlsso.d,
* ld-powerpc/tlstocso.d: Update for plt stub change.
This commit is contained in:
Alan Modra
parent
fb42df5ed9
commit
9df0ef5fe7
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@ -1,3 +1,13 @@
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2011-07-14 Alan Modra <amodra@gmail.com>
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* elf64-ppc.c (struct ppc_link_hash_table): Add plt_static_chain.
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(build_plt_stub): Add plt_static_chain param, don't load r11 if false.
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(build_tls_get_addr_stub): Likewise.
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(ppc_build_one_stub): Update calls to above.
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(ppc_size_one_stub): Adjust stub size.
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(ppc64_elf_size_stubs): Add plt_static_chain param, save to htab.
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* elf64-ppc.h (ppc64_elf_size_stubs): Update prototype.
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2011-07-12 Nick Clifton <nickc@redhat.com>
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* elf32-arm.c (elf32_arm_section_flags): Delete.
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@ -3734,6 +3734,9 @@ struct ppc_link_hash_table
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/* Number of stubs against global syms. */
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unsigned long stub_globals;
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/* Set if PLT call stubs should load r11. */
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unsigned int plt_static_chain:1;
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/* Set if we should emit symbols for stubs. */
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unsigned int emit_stub_syms:1;
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@ -9253,7 +9256,8 @@ ppc_type_of_stub (asection *input_sec,
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/* Build a .plt call stub. */
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static inline bfd_byte *
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build_plt_stub (bfd *obfd, bfd_byte *p, int offset, Elf_Internal_Rela *r)
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build_plt_stub (bfd *obfd, bfd_byte *p, int offset, Elf_Internal_Rela *r,
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bfd_boolean plt_static_chain)
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{
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#define PPC_LO(v) ((v) & 0xffff)
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#define PPC_HI(v) (((v) >> 16) & 0xffff)
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@ -9286,14 +9290,15 @@ build_plt_stub (bfd *obfd, bfd_byte *p, int offset, Elf_Internal_Rela *r)
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bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
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bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
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bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
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if (PPC_HA (offset + 16) != PPC_HA (offset))
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if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
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{
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bfd_put_32 (obfd, ADDI_R12_R12 | PPC_LO (offset), p), p += 4;
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offset = 0;
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}
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bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
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bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset + 8), p), p += 4;
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bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset + 16), p), p += 4;
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if (plt_static_chain)
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bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset + 16), p), p += 4;
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bfd_put_32 (obfd, BCTR, p), p += 4;
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}
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else
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@ -9320,13 +9325,14 @@ build_plt_stub (bfd *obfd, bfd_byte *p, int offset, Elf_Internal_Rela *r)
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}
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bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
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bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset), p), p += 4;
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if (PPC_HA (offset + 16) != PPC_HA (offset))
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if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
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{
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bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
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offset = 0;
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}
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bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
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bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
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if (plt_static_chain)
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bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
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bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
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bfd_put_32 (obfd, BCTR, p), p += 4;
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}
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@ -9351,7 +9357,7 @@ build_plt_stub (bfd *obfd, bfd_byte *p, int offset, Elf_Internal_Rela *r)
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static inline bfd_byte *
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build_tls_get_addr_stub (bfd *obfd, bfd_byte *p, int offset,
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Elf_Internal_Rela *r)
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Elf_Internal_Rela *r, bfd_boolean plt_static_chain)
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{
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bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4;
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bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4;
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@ -9365,7 +9371,7 @@ build_tls_get_addr_stub (bfd *obfd, bfd_byte *p, int offset,
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if (r != NULL)
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r[0].r_offset += 9 * 4;
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p = build_plt_stub (obfd, p, offset, r);
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p = build_plt_stub (obfd, p, offset, r, plt_static_chain);
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bfd_put_32 (obfd, BCTRL, p - 4);
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bfd_put_32 (obfd, LD_R11_0R1 + 32, p), p += 4;
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@ -9795,9 +9801,11 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
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&& (stub_entry->h == htab->tls_get_addr_fd
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|| stub_entry->h == htab->tls_get_addr)
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&& !htab->no_tls_get_addr_opt)
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p = build_tls_get_addr_stub (htab->stub_bfd, loc, off, r);
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p = build_tls_get_addr_stub (htab->stub_bfd, loc, off, r,
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htab->plt_static_chain);
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else
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p = build_plt_stub (htab->stub_bfd, loc, off, r);
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p = build_plt_stub (htab->stub_bfd, loc, off, r,
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htab->plt_static_chain);
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size = p - loc;
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break;
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@ -9884,6 +9892,8 @@ ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
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- htab->stub_group[stub_entry->id_sec->id].toc_off);
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size = PLT_CALL_STUB_SIZE;
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if (!htab->plt_static_chain)
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size -= 4;
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if (PPC_HA (off) == 0)
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size -= 4;
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if (PPC_HA (off + 16) != PPC_HA (off))
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@ -10823,7 +10833,8 @@ group_sections (struct ppc_link_hash_table *htab,
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instruction. */
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bfd_boolean
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ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size)
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ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size,
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bfd_boolean plt_static_chain)
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{
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bfd_size_type stub_group_size;
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bfd_boolean stubs_always_before_branch;
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@ -10832,6 +10843,7 @@ ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size)
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if (htab == NULL)
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return FALSE;
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htab->plt_static_chain = plt_static_chain;
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stubs_always_before_branch = group_size < 0;
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if (group_size < 0)
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stub_group_size = -group_size;
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@ -1,5 +1,5 @@
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/* PowerPC64-specific support for 64-bit ELF.
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Copyright 2002, 2003, 2004, 2005, 2007, 2008, 2010
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Copyright 2002, 2003, 2004, 2005, 2007, 2008, 2010, 2011
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Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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@ -49,7 +49,7 @@ bfd_boolean ppc64_elf_check_init_fini
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bfd_boolean ppc64_elf_next_input_section
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(struct bfd_link_info *, asection *);
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bfd_boolean ppc64_elf_size_stubs
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(struct bfd_link_info *, bfd_signed_vma);
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(struct bfd_link_info *, bfd_signed_vma, bfd_boolean);
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bfd_boolean ppc64_elf_build_stubs
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(bfd_boolean, struct bfd_link_info *, char **);
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void ppc64_elf_restore_symbols
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@ -1,3 +1,11 @@
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2011-07-14 Alan Modra <amodra@gmail.com>
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* emultempl/ppc64elf.em (plt_static_chain): New var.
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(gld${EMULATION_NAME}_after_allocation): Pass to ppc64_elf_size_stubs.
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(PARSE_AND_LIST_PROLOGUE, PARSE_AND_LIST_LONGOPTS,
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PARSE_AND_LIST_OPTIONS, PARSE_AND_LIST_ARGS_CASES): Handle
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--plt-static-chain and --no-plt-static-chain.
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2011-07-14 Alan Modra <amodra@gmail.com>
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* emultempl/elf32.em (gld${EMULATION_NAME}_add_options,
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@ -61,6 +61,9 @@ static int no_multi_toc = 0;
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/* Whether to sort input toc and got sections. */
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static int no_toc_sort = 0;
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/* Set if PLT call stubs should load r11. */
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static int plt_static_chain = 0;
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/* Whether to emit symbols for stubs. */
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static int emit_stub_syms = -1;
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@ -500,7 +503,7 @@ gld${EMULATION_NAME}_after_allocation (void)
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einfo ("%P: .init/.fini fragments use differing TOC pointers\n");
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/* Call into the BFD backend to do the real work. */
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if (!ppc64_elf_size_stubs (&link_info, group_size))
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if (!ppc64_elf_size_stubs (&link_info, group_size, plt_static_chain))
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einfo ("%X%P: can not size stub section: %E\n");
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}
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}
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@ -651,7 +654,9 @@ fi
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#
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PARSE_AND_LIST_PROLOGUE='
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#define OPTION_STUBGROUP_SIZE 301
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#define OPTION_STUBSYMS (OPTION_STUBGROUP_SIZE + 1)
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#define OPTION_PLT_STATIC_CHAIN (OPTION_STUBGROUP_SIZE + 1)
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#define OPTION_NO_PLT_STATIC_CHAIN (OPTION_PLT_STATIC_CHAIN + 1)
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#define OPTION_STUBSYMS (OPTION_NO_PLT_STATIC_CHAIN + 1)
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#define OPTION_NO_STUBSYMS (OPTION_STUBSYMS + 1)
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#define OPTION_DOTSYMS (OPTION_NO_STUBSYMS + 1)
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#define OPTION_NO_DOTSYMS (OPTION_DOTSYMS + 1)
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@ -666,6 +671,8 @@ PARSE_AND_LIST_PROLOGUE='
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PARSE_AND_LIST_LONGOPTS='
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{ "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
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{ "plt-static-chain", no_argument, NULL, OPTION_PLT_STATIC_CHAIN },
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{ "no-plt-static-chain", no_argument, NULL, OPTION_NO_PLT_STATIC_CHAIN },
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{ "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS },
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{ "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS },
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{ "dotsyms", no_argument, NULL, OPTION_DOTSYMS },
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@ -691,6 +698,12 @@ PARSE_AND_LIST_OPTIONS='
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choose suitable defaults.\n"
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));
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fprintf (file, _("\
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--plt-static-chain PLT call stubs should load r11.\n"
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));
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fprintf (file, _("\
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--no-plt-static-chain PLT call stubs should not load r11. (default)\n"
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));
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fprintf (file, _("\
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--emit-stub-syms Label linker stubs with a symbol.\n"
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));
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fprintf (file, _("\
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@ -739,6 +752,14 @@ PARSE_AND_LIST_ARGS_CASES='
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}
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break;
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case OPTION_PLT_STATIC_CHAIN:
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plt_static_chain = 1;
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break;
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case OPTION_NO_PLT_STATIC_CHAIN:
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plt_static_chain = 0;
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break;
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case OPTION_STUBSYMS:
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emit_stub_syms = 1;
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break;
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@ -1,3 +1,10 @@
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2011-07-14 Alan Modra <amodra@gmail.com>
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* ld-powerpc/tlsexe.d, * ld-powerpc/tlsexe.g. *ld-powerpc/tlsexe.r,
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* ld-powerpc/tlsexetoc.d, * ld-powerpc/tlsexetoc.g,
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* ld-powerpc/tlsexetoc.r, * ld-powerpc/tlsso.d,
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* ld-powerpc/tlstocso.d: Update for plt stub change.
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2011-07-11 Catherine Moore <clm@cm00re.com>
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* ld-scripts/section-flags-1.s: New.
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@ -21,7 +21,6 @@ Disassembly of section \.text:
|
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.* f8 41 00 28 std r2,40\(r1\)
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.* e9 62 80 48 ld r11,-32696\(r2\)
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.* 7d 69 03 a6 mtctr r11
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.* e9 62 80 58 ld r11,-32680\(r2\)
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.* e8 42 80 50 ld r2,-32688\(r2\)
|
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.* 4e 80 04 21 bctrl
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.* e9 61 00 20 ld r11,32\(r1\)
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@ -34,7 +33,7 @@ Disassembly of section \.text:
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.* 60 00 00 00 nop
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.* 7c 63 6a 14 add r3,r3,r13
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.* 38 62 80 18 addi r3,r2,-32744
|
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.* 4b ff ff a5 bl .*
|
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.* 4b ff ff a9 bl .*
|
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.* 60 00 00 00 nop
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.* 3c 6d 00 00 addis r3,r13,0
|
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.* 60 00 00 00 nop
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|
|
@ -68,7 +67,6 @@ Disassembly of section \.text:
|
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.* e9 4d 90 2a lwa r10,-28632\(r13\)
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.* 3d 2d 00 00 addis r9,r13,0
|
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.* a9 49 90 30 lha r10,-28624\(r9\)
|
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.* 60 00 00 00 nop
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.* 00 00 00 00 .*
|
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.* 00 01 02 00 .*
|
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.* <__glink_PLTresolve>:
|
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|
|
|
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|
|
@ -7,6 +7,6 @@
|
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.*: +file format elf64-powerpc
|
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|
||||
Contents of section \.got:
|
||||
.* 00000000 10018618 ffffffff ffff8018 .*
|
||||
.* 00000000 10018610 ffffffff ffff8018 .*
|
||||
.* 00000000 00000000 00000000 00000000 .*
|
||||
.* 00000000 00000000 00000000 00000000 .*
|
||||
|
|
|
|||
|
|
@ -16,7 +16,7 @@ Section Headers:
|
|||
+\[[ 0-9]+\] \.dynstr +.*
|
||||
+\[[ 0-9]+\] \.rela\.dyn +.*
|
||||
+\[[ 0-9]+\] \.rela\.plt +.*
|
||||
+\[[ 0-9]+\] \.text +PROGBITS .* 0+130 0+ +AX +0 +0 +8
|
||||
+\[[ 0-9]+\] \.text +PROGBITS .* 0+128 0+ +AX +0 +0 +8
|
||||
+\[[ 0-9]+\] \.tdata +PROGBITS .* 0+38 0+ WAT +0 +0 +8
|
||||
+\[[ 0-9]+\] \.tbss +NOBITS .* 0+38 0+ WAT +0 +0 +8
|
||||
+\[[ 0-9]+\] \.dynamic +DYNAMIC .* 0+160 10 +WA +4 +0 +8
|
||||
|
|
|
|||
|
|
@ -21,7 +21,6 @@ Disassembly of section \.text:
|
|||
.* f8 41 00 28 std r2,40\(r1\)
|
||||
.* e9 62 80 70 ld r11,-32656\(r2\)
|
||||
.* 7d 69 03 a6 mtctr r11
|
||||
.* e9 62 80 80 ld r11,-32640\(r2\)
|
||||
.* e8 42 80 78 ld r2,-32648\(r2\)
|
||||
.* 4e 80 04 21 bctrl
|
||||
.* e9 61 00 20 ld r11,32\(r1\)
|
||||
|
|
@ -31,10 +30,10 @@ Disassembly of section \.text:
|
|||
|
||||
.* <_start>:
|
||||
.* 38 62 80 08 addi r3,r2,-32760
|
||||
.* 4b ff ff b1 bl .*
|
||||
.* 4b ff ff b5 bl .*
|
||||
.* 60 00 00 00 nop
|
||||
.* 38 62 80 18 addi r3,r2,-32744
|
||||
.* 4b ff ff a5 bl .*
|
||||
.* 4b ff ff a9 bl .*
|
||||
.* 60 00 00 00 nop
|
||||
.* 3c 6d 00 00 addis r3,r13,0
|
||||
.* 60 00 00 00 nop
|
||||
|
|
@ -52,7 +51,6 @@ Disassembly of section \.text:
|
|||
.* 89 4d 90 60 lbz r10,-28576\(r13\)
|
||||
.* 3d 2d 00 00 addis r9,r13,0
|
||||
.* 99 49 90 68 stb r10,-28568\(r9\)
|
||||
.* 60 00 00 00 nop
|
||||
.* 00 00 00 00 .*
|
||||
.* 00 01 02 28 .*
|
||||
.* <__glink_PLTresolve>:
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@
|
|||
.*: +file format elf64-powerpc
|
||||
|
||||
Contents of section \.got:
|
||||
.* 00000000 100185b0 00000000 00000000 .*
|
||||
.* 00000000 100185a8 00000000 00000000 .*
|
||||
.* 00000000 00000000 00000000 00000000 .*
|
||||
.* 00000000 00000000 00000000 00000001 .*
|
||||
.* 00000000 00000000 00000000 00000001 .*
|
||||
|
|
|
|||
|
|
@ -16,7 +16,7 @@ Section Headers:
|
|||
+\[[ 0-9]+\] \.dynstr +.*
|
||||
+\[[ 0-9]+\] \.rela\.dyn +.*
|
||||
+\[[ 0-9]+\] \.rela\.plt +.*
|
||||
+\[[ 0-9]+\] \.text +PROGBITS .* 0+f0 0+ +AX +0 +0 +8
|
||||
+\[[ 0-9]+\] \.text +PROGBITS .* 0+e8 0+ +AX +0 +0 +8
|
||||
+\[[ 0-9]+\] \.tdata +PROGBITS .* 0+38 0+ WAT +0 +0 +8
|
||||
+\[[ 0-9]+\] \.tbss +NOBITS .* 0+38 0+ WAT +0 +0 +8
|
||||
+\[[ 0-9]+\] \.dynamic +DYNAMIC .* 0+160 10 +WA +4 +0 +8
|
||||
|
|
|
|||
|
|
@ -12,22 +12,21 @@ Disassembly of section \.text:
|
|||
.* f8 41 00 28 std r2,40\(r1\)
|
||||
.* e9 62 80 78 ld r11,-32648\(r2\)
|
||||
.* 7d 69 03 a6 mtctr r11
|
||||
.* e9 62 80 88 ld r11,-32632\(r2\)
|
||||
.* e8 42 80 80 ld r2,-32640\(r2\)
|
||||
.* 4e 80 04 20 bctr
|
||||
|
||||
.* <_start>:
|
||||
.* 38 62 80 20 addi r3,r2,-32736
|
||||
.* 4b ff ff e5 bl .*
|
||||
.* 4b ff ff e9 bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 38 62 80 50 addi r3,r2,-32688
|
||||
.* 4b ff ff d9 bl .*
|
||||
.* 4b ff ff dd bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 38 62 80 38 addi r3,r2,-32712
|
||||
.* 4b ff ff cd bl .*
|
||||
.* 4b ff ff d1 bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 38 62 80 50 addi r3,r2,-32688
|
||||
.* 4b ff ff c1 bl .*
|
||||
.* 4b ff ff c5 bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 39 23 80 40 addi r9,r3,-32704
|
||||
.* 3d 23 00 00 addis r9,r3,0
|
||||
|
|
@ -40,10 +39,10 @@ Disassembly of section \.text:
|
|||
.* 3d 2d 00 00 addis r9,r13,0
|
||||
.* 99 49 00 00 stb r10,0\(r9\)
|
||||
.* 38 62 80 08 addi r3,r2,-32760
|
||||
.* 4b ff ff 8d bl .*
|
||||
.* 4b ff ff 91 bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 38 62 80 50 addi r3,r2,-32688
|
||||
.* 4b ff ff 81 bl .*
|
||||
.* 4b ff ff 85 bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* f9 43 80 08 std r10,-32760\(r3\)
|
||||
.* 3d 23 00 00 addis r9,r3,0
|
||||
|
|
@ -55,6 +54,7 @@ Disassembly of section \.text:
|
|||
.* e9 4d 00 02 lwa r10,0\(r13\)
|
||||
.* 3d 2d 00 00 addis r9,r13,0
|
||||
.* a9 49 00 00 lha r10,0\(r9\)
|
||||
.* 60 00 00 00 nop
|
||||
.* 00 00 00 00 .*
|
||||
.* 00 01 02 20 .*
|
||||
.* <__glink_PLTresolve>:
|
||||
|
|
|
|||
|
|
@ -12,22 +12,21 @@ Disassembly of section \.text:
|
|||
.* f8 41 00 28 std r2,40\(r1\)
|
||||
.* e9 62 80 70 ld r11,-32656\(r2\)
|
||||
.* 7d 69 03 a6 mtctr r11
|
||||
.* e9 62 80 80 ld r11,-32640\(r2\)
|
||||
.* e8 42 80 78 ld r2,-32648\(r2\)
|
||||
.* 4e 80 04 20 bctr
|
||||
|
||||
.* <_start>:
|
||||
.* 38 62 80 08 addi r3,r2,-32760
|
||||
.* 4b ff ff e5 bl .*
|
||||
.* 4b ff ff e9 bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 38 62 80 18 addi r3,r2,-32744
|
||||
.* 4b ff ff d9 bl .*
|
||||
.* 4b ff ff dd bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 38 62 80 28 addi r3,r2,-32728
|
||||
.* 4b ff ff cd bl .*
|
||||
.* 4b ff ff d1 bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 38 62 80 38 addi r3,r2,-32712
|
||||
.* 4b ff ff c1 bl .*
|
||||
.* 4b ff ff c5 bl .*
|
||||
.* e8 41 00 28 ld r2,40\(r1\)
|
||||
.* 39 23 80 40 addi r9,r3,-32704
|
||||
.* 3d 23 00 00 addis r9,r3,0
|
||||
|
|
@ -39,6 +38,7 @@ Disassembly of section \.text:
|
|||
.* 89 4d 00 00 lbz r10,0\(r13\)
|
||||
.* 3d 2d 00 00 addis r9,r13,0
|
||||
.* 99 49 00 00 stb r10,0\(r9\)
|
||||
.* 60 00 00 00 nop
|
||||
.* 00 00 00 00 .*
|
||||
.* 00 01 02 18 .*
|
||||
.* <__glink_PLTresolve>:
|
||||
|
|
|
|||
Loading…
Reference in New Issue