0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
- /* Marker reloc for TLS. */
+ /* Marker relocs for TLS. */
HOWTO (R_PPC_TLS,
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* dst_mask */
FALSE), /* pcrel_offset */
+ HOWTO (R_PPC_TLSGD,
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_TLSGD", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_PPC_TLSLD,
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_TLSLD", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
/* Computes the load module index of the load module that contains the
definition of its TLS sym. */
HOWTO (R_PPC_DTPMOD32,
case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
+ case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
+ case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
}
\f
static bfd_boolean
-is_pic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
+is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
{
- bfd_byte buf[16];
- unsigned int insn;
+ bfd_byte buf[GLINK_ENTRY_SIZE];
- if (!bfd_get_section_contents (abfd, glink, buf, off, 16))
+ if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
return FALSE;
- insn = bfd_get_32 (abfd, buf);
- if ((insn & 0xffff0000) == LWZ_11_30
- && bfd_get_32 (abfd, buf + 4) == MTCTR_11
- && bfd_get_32 (abfd, buf + 8) == BCTR)
- return TRUE;
-
- if ((insn & 0xffff0000) == ADDIS_11_30
- && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
- && bfd_get_32 (abfd, buf + 8) == MTCTR_11
- && bfd_get_32 (abfd, buf + 12) == BCTR)
- return TRUE;
- return FALSE;
+ return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
+ && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
+ && bfd_get_32 (abfd, buf + 8) == MTCTR_11
+ && bfd_get_32 (abfd, buf + 12) == BCTR);
}
static bfd_boolean
multiple stubs for each plt entry. If that is the case then
there is no way to associate stubs with their plt entries short
of figuring out the GOT pointer value used in the stub. */
- if (!bfd_get_section_contents (abfd, glink, buf,
- stub_vma - glink->vma, 4)
- || ((bfd_get_32 (abfd, buf) & 0xffff0000) != LIS_11
- && is_pic_glink_stub (abfd, glink, stub_vma - glink->vma - 16)))
+ if (!is_nonpic_glink_stub (abfd, glink,
+ glink_vma - GLINK_ENTRY_SIZE - glink->vma))
return 0;
slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
bfd_vma offset;
} tlsld_got;
- /* Offset of PltResolve function in glink. */
+ /* Offset of branch table to PltResolve function in glink. */
bfd_vma glink_pltresolve;
/* Size of reserved GOT entries. */
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
asection *got2, *sreloc;
+ struct elf_link_hash_entry *tga;
if (info->relocatable)
return TRUE;
ppc_elf_howto_init ();
htab = ppc_elf_hash_table (info);
+ tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
+ FALSE, FALSE, TRUE);
symtab_hdr = &elf_symtab_hdr (abfd);
sym_hashes = elf_sym_hashes (abfd);
got2 = bfd_get_section_by_name (abfd, ".got2");
unsigned long r_symndx;
enum elf_ppc_reloc_type r_type;
struct elf_link_hash_entry *h;
- int tls_type = 0;
+ int tls_type;
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
BFD_ASSERT (h == htab->elf.hgot);
}
+ tls_type = 0;
r_type = ELF32_R_TYPE (rel->r_info);
+ if (h != NULL && h == tga)
+ switch (r_type)
+ {
+ default:
+ break;
+
+ case R_PPC_PLTREL24:
+ case R_PPC_LOCAL24PC:
+ case R_PPC_REL24:
+ case R_PPC_REL14:
+ case R_PPC_REL14_BRTAKEN:
+ case R_PPC_REL14_BRNTAKEN:
+ case R_PPC_ADDR24:
+ case R_PPC_ADDR14:
+ case R_PPC_ADDR14_BRTAKEN:
+ case R_PPC_ADDR14_BRNTAKEN:
+ if (rel != relocs
+ && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
+ || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
+ /* We have a new-style __tls_get_addr call with a marker
+ reloc. */
+ ;
+ else
+ /* Mark this section as having an old-style call. */
+ sec->has_tls_get_addr_call = 1;
+ break;
+ }
+
switch (r_type)
{
+ case R_PPC_TLSGD:
+ case R_PPC_TLSLD:
+ /* These special tls relocs tie a call to __tls_get_addr with
+ its parameter symbol. */
+ break;
+
case R_PPC_GOT_TLSLD16:
case R_PPC_GOT_TLSLD16_LO:
case R_PPC_GOT_TLSLD16_HI:
/* This refers only to functions defined in the shared library. */
case R_PPC_LOCAL24PC:
- if (h && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
+ if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
{
htab->plt_type = PLT_OLD;
htab->old_bfd = abfd;
if (pass == 0)
{
- if (!expecting_tls_get_addr)
+ if (!expecting_tls_get_addr
+ || !sec->has_tls_get_addr_call)
continue;
if (rel + 1 < relend
for the final instruction stream. */
tls_mask = 0;
tls_gd = 0;
- if (IS_PPC_TLS_RELOC (r_type))
+ if (h != NULL)
+ tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
+ else if (local_got_offsets != NULL)
{
- if (h != NULL)
- tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
- else if (local_got_offsets != NULL)
- {
- char *lgot_masks;
- lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
- tls_mask = lgot_masks[r_symndx];
- }
+ char *lgot_masks;
+ lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
+ tls_mask = lgot_masks[r_symndx];
}
/* Ensure reloc mapping code below stays sane. */
bfd_vma offset;
tls_ldgd_opt:
- offset = rel[1].r_offset;
+ offset = (bfd_vma) -1;
+ /* If not using the newer R_PPC_TLSGD/LD to mark
+ __tls_get_addr calls, we must trust that the call
+ stays with its arg setup insns, ie. that the next
+ reloc is the __tls_get_addr call associated with
+ the current reloc. Edit both insns. */
+ if (input_section->has_tls_get_addr_call
+ && rel + 1 < relend
+ && branch_reloc_hash_match (input_bfd, rel + 1,
+ htab->tls_get_addr))
+ offset = rel[1].r_offset;
if ((tls_mask & tls_gd) != 0)
{
/* IE */
contents + rel->r_offset - d_offset);
insn1 &= (1 << 26) - 1;
insn1 |= 32 << 26; /* lwz */
- insn2 = 0x7c631214; /* add 3,3,2 */
- rel[1].r_info
- = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info), R_PPC_NONE);
+ if (offset != (bfd_vma) -1)
+ {
+ rel[1].r_info
+ = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info),
+ R_PPC_NONE);
+ insn2 = 0x7c631214; /* add 3,3,2 */
+ bfd_put_32 (output_bfd, insn2, contents + offset);
+ }
r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
+ R_PPC_GOT_TPREL16);
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
{
/* LE */
insn1 = 0x3c620000; /* addis 3,2,0 */
- insn2 = 0x38630000; /* addi 3,3,0 */
if (tls_gd == 0)
{
/* Was an LD reloc. */
}
r_type = R_PPC_TPREL16_HA;
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
- rel[1].r_info = ELF32_R_INFO (r_symndx,
- R_PPC_TPREL16_LO);
- rel[1].r_offset += d_offset;
- rel[1].r_addend = rel->r_addend;
+ if (offset != (bfd_vma) -1)
+ {
+ rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
+ rel[1].r_offset = offset + d_offset;
+ rel[1].r_addend = rel->r_addend;
+ insn2 = 0x38630000; /* addi 3,3,0 */
+ bfd_put_32 (output_bfd, insn2, contents + offset);
+ }
}
bfd_put_32 (output_bfd, insn1,
contents + rel->r_offset - d_offset);
- bfd_put_32 (output_bfd, insn2, contents + offset);
if (tls_gd == 0)
{
/* We changed the symbol on an LD reloc. Start over
}
}
break;
+
+ case R_PPC_TLSGD:
+ if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
+ {
+ unsigned int insn2;
+ bfd_vma offset = rel->r_offset;
+
+ if ((tls_mask & TLS_TPRELGD) != 0)
+ {
+ /* IE */
+ r_type = R_PPC_NONE;
+ insn2 = 0x7c631214; /* add 3,3,2 */
+ }
+ else
+ {
+ /* LE */
+ r_type = R_PPC_TPREL16_LO;
+ rel->r_offset += d_offset;
+ insn2 = 0x38630000; /* addi 3,3,0 */
+ }
+ rel->r_info = ELF32_R_INFO (r_symndx, r_type);
+ bfd_put_32 (output_bfd, insn2, contents + offset);
+ /* Zap the reloc on the _tls_get_addr call too. */
+ BFD_ASSERT (offset == rel[1].r_offset);
+ rel[1].r_info = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info),
+ R_PPC_NONE);
+ }
+ break;
+
+ case R_PPC_TLSLD:
+ if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
+ {
+ unsigned int insn2;
+
+ for (r_symndx = 0;
+ r_symndx < symtab_hdr->sh_info;
+ r_symndx++)
+ if (local_sections[r_symndx] == sec)
+ break;
+ if (r_symndx >= symtab_hdr->sh_info)
+ r_symndx = 0;
+ rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
+ if (r_symndx != 0)
+ rel->r_addend -= (local_syms[r_symndx].st_value
+ + sec->output_offset
+ + sec->output_section->vma);
+
+ rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
+ rel->r_offset += d_offset;
+ insn2 = 0x38630000; /* addi 3,3,0 */
+ bfd_put_32 (output_bfd, insn2,
+ contents + rel->r_offset - d_offset);
+ /* Zap the reloc on the _tls_get_addr call too. */
+ BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
+ rel[1].r_info = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info),
+ R_PPC_NONE);
+ rel--;
+ continue;
+ }
+ break;
}
/* Handle other relocations that tweak non-addend part of insn. */
case R_PPC_NONE:
case R_PPC_TLS:
+ case R_PPC_TLSGD:
+ case R_PPC_TLSLD:
case R_PPC_EMB_MRKREF:
case R_PPC_GNU_VTINHERIT:
case R_PPC_GNU_VTENTRY:
case R_PPC_GOT16_LO:
case R_PPC_GOT16_HI:
case R_PPC_GOT16_HA:
+ tls_mask = 0;
dogot:
{
/* Relocation is to the entry for this symbol in the global
projects / deliverable / binutils-gdb.git / blobdiff