/* Track dynamic relocs copied for this symbol. */
struct elf_dyn_relocs *dyn_relocs;
- /* Contexts in which symbol is used in the GOT (or TOC).
- TLS_GD .. TLS_TLS bits are or'd into the mask as the
- corresponding relocs are encountered during check_relocs.
- tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
- indicate the corresponding GOT entry type is not needed. */
-#define TLS_GD 1 /* GD reloc. */
-#define TLS_LD 2 /* LD reloc. */
-#define TLS_TPREL 4 /* TPREL reloc, => IE. */
-#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
-#define TLS_TLS 16 /* Any TLS reloc. */
-#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
-#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
+ /* Contexts in which symbol is used in the GOT.
+ Bits are or'd into the mask as the corresponding relocs are
+ encountered during check_relocs, with TLS_TLS being set when any
+ of the other TLS bits are set. tls_optimize clears bits when
+ optimizing to indicate the corresponding GOT entry type is not
+ needed. If set, TLS_TLS is never cleared. tls_optimize may also
+ set TLS_TPRELGD when a GD reloc turns into a TPREL one. We use a
+ separate flag rather than setting TPREL just for convenience in
+ distinguishing the two cases.
+ These flags are also kept for local symbols. */
+#define TLS_TLS 1 /* Any TLS reloc. */
+#define TLS_GD 2 /* GD reloc. */
+#define TLS_LD 4 /* LD reloc. */
+#define TLS_TPREL 8 /* TPREL reloc, => IE. */
+#define TLS_DTPREL 16 /* DTPREL reloc, => LD. */
+#define TLS_MARK 32 /* __tls_get_addr call marked. */
+#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
unsigned char tls_mask;
+ /* The above field is also used to mark function symbols. In which
+ case TLS_TLS will be 0. */
+#define PLT_IFUNC 2 /* STT_GNU_IFUNC. */
+#define NON_GOT 256 /* local symbol plt, not stored. */
+
/* Nonzero if we have seen a small data relocation referring to this
symbol. */
unsigned char has_sda_refs : 1;
local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
- local_got_tls_masks[r_symndx] |= tls_type;
- if (tls_type != PLT_IFUNC)
+ local_got_tls_masks[r_symndx] |= tls_type & 0xff;
+ if ((tls_type & NON_GOT) == 0)
local_got_refcounts[r_symndx] += 1;
return local_plt + r_symndx;
}
{
/* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
- PLT_IFUNC);
+ NON_GOT | PLT_IFUNC);
if (ifunc == NULL)
return FALSE;
case R_PPC_TLSLD:
/* These special tls relocs tie a call to __tls_get_addr with
its parameter symbol. */
+ if (h != NULL)
+ ppc_elf_hash_entry (h)->tls_mask |= TLS_TLS | TLS_MARK;
+ else
+ if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
+ NON_GOT | TLS_TLS | TLS_MARK))
+ return FALSE;
break;
case R_PPC_GOT_TLSLD16:
unsigned long r_symndx;
struct elf_link_hash_entry *h = NULL;
unsigned char *tls_mask;
- char tls_set, tls_clear;
+ unsigned char tls_set, tls_clear;
bfd_boolean is_local;
bfd_signed_vma *got_count;
return TRUE;
}
- if (expecting_tls_get_addr)
- {
- struct plt_entry *ent;
- bfd_vma addend = 0;
-
- if (bfd_link_pic (info)
- && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
- addend = rel[1].r_addend;
- ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
- got2, addend);
- if (ent != NULL && ent->plt.refcount > 0)
- ent->plt.refcount -= 1;
-
- if (expecting_tls_get_addr == 2)
- continue;
- }
-
if (h != NULL)
{
tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
got_count = &lgot_refs[r_symndx];
}
+ /* If we don't have old-style __tls_get_addr calls
+ without TLSGD/TLSLD marker relocs, and we haven't
+ found a new-style __tls_get_addr call with a
+ marker for this symbol, then we either have a
+ broken object file or an -mlongcall style
+ indirect call to __tls_get_addr without a marker.
+ Disable optimization in this case. */
+ if ((tls_clear & (TLS_GD | TLS_LD)) != 0
+ && !sec->has_tls_get_addr_call
+ && ((*tls_mask & (TLS_TLS | TLS_MARK))
+ != (TLS_TLS | TLS_MARK)))
+ continue;
+
+ if (expecting_tls_get_addr)
+ {
+ struct plt_entry *ent;
+ bfd_vma addend = 0;
+
+ if (bfd_link_pic (info)
+ && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
+ addend = rel[1].r_addend;
+ ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
+ got2, addend);
+ if (ent != NULL && ent->plt.refcount > 0)
+ ent->plt.refcount -= 1;
+
+ if (expecting_tls_get_addr == 2)
+ continue;
+ }
+
if (tls_set == 0)
{
/* We managed to get rid of a got entry. */
the DTPREL reloc on the second word of a GD entry under the same
condition as that for IE, but ld.so needs to differentiate
LD and GD entries. */
- if ((tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0 && known)
+ if (known && (tls_mask & TLS_TLS) != 0
+ && (tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
need -= 4;
return need * sizeof (Elf32_External_Rela) / 4;
}
return FALSE;
need = 0;
- if ((eh->tls_mask & TLS_LD) != 0)
+ if ((eh->tls_mask & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD))
{
if (!eh->elf.def_dynamic)
/* We'll just use htab->tlsld_got.offset. This should
&eh->elf));
need = got_relocs_needed (eh->tls_mask, need, tprel_known);
- if ((eh->tls_mask & TLS_LD) != 0 && eh->elf.def_dynamic)
+ if ((eh->tls_mask & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD)
+ && eh->elf.def_dynamic)
need -= sizeof (Elf32_External_Rela);
rsec = htab->elf.srelgot;
if (eh->elf.type == STT_GNU_IFUNC)
if (*local_got > 0)
{
unsigned int need;
- if ((*lgot_masks & TLS_LD) != 0)
+ if ((*lgot_masks & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD))
htab->tlsld_got.refcount += 1;
need = got_entries_needed (*lgot_masks);
if (need == 0)
need = got_relocs_needed (*lgot_masks, need, tprel_known);
srel = htab->elf.srelgot;
- if ((*lgot_masks & PLT_IFUNC) != 0)
+ if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
srel = htab->elf.irelplt;
srel->size += need;
}
off &= ~1;
else
{
- unsigned int tls_m = (tls_mask
- & (TLS_LD | TLS_GD | TLS_DTPREL
- | TLS_TPREL | TLS_TPRELGD));
+ unsigned int tls_m = ((tls_mask & TLS_TLS) != 0
+ ? tls_mask & (TLS_LD | TLS_GD | TLS_DTPREL
+ | TLS_TPREL | TLS_TPRELGD)
+ : 0);
if (offp == &htab->tlsld_got.offset)
tls_m = TLS_LD;
unsigned int non_zero_localentry:1;
/* Contexts in which symbol is used in the GOT (or TOC).
- TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
- corresponding relocs are encountered during check_relocs.
- tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
- indicate the corresponding GOT entry type is not needed.
- tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
- a TPREL one. We use a separate flag rather than setting TPREL
- just for convenience in distinguishing the two cases. */
-#define TLS_GD 1 /* GD reloc. */
-#define TLS_LD 2 /* LD reloc. */
-#define TLS_TPREL 4 /* TPREL reloc, => IE. */
-#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
-#define TLS_TLS 16 /* Any TLS reloc. */
-#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
+ Bits are or'd into the mask as the corresponding relocs are
+ encountered during check_relocs, with TLS_TLS being set when any
+ of the other TLS bits are set. tls_optimize clears bits when
+ optimizing to indicate the corresponding GOT entry type is not
+ needed. If set, TLS_TLS is never cleared. tls_optimize may also
+ set TLS_TPRELGD when a GD reloc turns into a TPREL one. We use a
+ separate flag rather than setting TPREL just for convenience in
+ distinguishing the two cases.
+ These flags are also kept for local symbols. */
+#define TLS_TLS 1 /* Any TLS reloc. */
+#define TLS_GD 2 /* GD reloc. */
+#define TLS_LD 4 /* LD reloc. */
+#define TLS_TPREL 8 /* TPREL reloc, => IE. */
+#define TLS_DTPREL 16 /* DTPREL reloc, => LD. */
+#define TLS_MARK 32 /* __tls_get_addr call marked. */
#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
-#define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
+#define TLS_EXPLICIT 128 /* Marks TOC section TLS relocs. */
unsigned char tls_mask;
+
+ /* The above field is also used to mark function symbols. In which
+ case TLS_TLS will be 0. */
+#define PLT_IFUNC 2 /* STT_GNU_IFUNC. */
+#define NON_GOT 256 /* local symbol plt, not stored. */
};
/* ppc64 ELF linker hash table. */
elf_local_got_ents (abfd) = local_got_ents;
}
- if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0)
+ if ((tls_type & (NON_GOT | TLS_EXPLICIT)) == 0)
{
struct got_entry *ent;
local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info);
local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
- local_got_tls_masks[r_symndx] |= tls_type;
+ local_got_tls_masks[r_symndx] |= tls_type & 0xff;
return local_plt + r_symndx;
}
if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
{
ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
- rel->r_addend, PLT_IFUNC);
+ rel->r_addend,
+ NON_GOT | PLT_IFUNC);
if (ifunc == NULL)
return FALSE;
}
case R_PPC64_TLSLD:
/* These special tls relocs tie a call to __tls_get_addr with
its parameter symbol. */
+ if (h != NULL)
+ ((struct ppc_link_hash_entry *) h)->tls_mask |= TLS_TLS | TLS_MARK;
+ else
+ if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
+ rel->r_addend,
+ NON_GOT | TLS_TLS | TLS_MARK))
+ return FALSE;
+ sec->has_tls_reloc = 1;
break;
case R_PPC64_GOT_TLSLD16:
if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
return 0;
- if ((*tls_maskp != NULL && **tls_maskp != 0)
+ if ((*tls_maskp != NULL
+ && (**tls_maskp & TLS_TLS) != 0
+ && **tls_maskp != (TLS_TLS | TLS_MARK))
|| sec == NULL
|| ppc64_elf_section_data (sec) == NULL
|| ppc64_elf_section_data (sec)->sec_type != sec_toc)
goto err_free_rel;
if (toc_tls != NULL)
{
- if ((*toc_tls & (TLS_GD | TLS_LD)) != 0)
+ if ((*toc_tls & TLS_TLS) != 0
+ && ((*toc_tls & (TLS_GD | TLS_LD)) != 0))
found_tls_get_addr_arg = 1;
if (retval > 1)
toc_ref[toc_ref_index] = 1;
continue;
}
- if (expecting_tls_get_addr != 1)
- continue;
-
/* Uh oh, we didn't find the expected call. We
could just mark this symbol to exclude it
from tls optimization but it's safer to skip
goto err_free_rel;
}
+ /* If we don't have old-style __tls_get_addr calls
+ without TLSGD/TLSLD marker relocs, and we haven't
+ found a new-style __tls_get_addr call with a
+ marker for this symbol, then we either have a
+ broken object file or an -mlongcall style
+ indirect call to __tls_get_addr without a marker.
+ Disable optimization in this case. */
+ if ((tls_clear & (TLS_GD | TLS_LD)) != 0
+ && (tls_set & TLS_EXPLICIT) == 0
+ && !sec->has_tls_get_addr_call
+ && ((*tls_mask & (TLS_TLS | TLS_MARK))
+ != (TLS_TLS | TLS_MARK)))
+ continue;
+
if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
{
struct plt_entry *ent;
eh = (struct ppc_link_hash_entry *) h;
/* Run through the TLS GD got entries first if we're changing them
to TPREL. */
- if ((eh->tls_mask & TLS_TPRELGD) != 0)
+ if ((eh->tls_mask & (TLS_TLS | TLS_TPRELGD)) == (TLS_TLS | TLS_TPRELGD))
for (gent = h->got.glist; gent != NULL; gent = gent->next)
if (gent->got.refcount > 0
&& (gent->tls_type & TLS_GD) != 0)
rel_size *= 2;
}
s->size += ent_size;
- if ((*lgot_masks & PLT_IFUNC) != 0)
+ if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
{
htab->elf.irelplt->size += rel_size;
htab->got_reli_size += rel_size;
rel_size *= 2;
}
s->size += ent_size;
- if ((*lgot_masks & PLT_IFUNC) != 0)
+ if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
{
htab->elf.irelplt->size += rel_size;
htab->got_reli_size += rel_size;
if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms,
irela - 1, input_bfd))
goto error_ret_free_internal;
- if (*tls_mask != 0)
+ if ((*tls_mask & TLS_TLS) != 0)
continue;
}
(local_plt + symtab_hdr->sh_info);
tls_mask = lgot_masks[r_symndx];
}
- if (tls_mask == 0
+ if (((tls_mask & TLS_TLS) == 0 || tls_mask == (TLS_TLS | TLS_MARK))
&& (r_type == R_PPC64_TLS
|| r_type == R_PPC64_TLSGD
|| r_type == R_PPC64_TLSLD))
|| (sym_type == STT_SECTION
&& (sec->flags & SEC_THREAD_LOCAL) != 0))))
{
- if (tls_mask != 0
+ if ((tls_mask & TLS_TLS) != 0
&& (r_type == R_PPC64_TLS
|| r_type == R_PPC64_TLSGD
|| r_type == R_PPC64_TLSLD))
if (r_type == R_PPC64_TOC16_DS
|| r_type == R_PPC64_TOC16_LO_DS)
{
- if (tls_mask != 0
+ if ((tls_mask & TLS_TLS) != 0
&& (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
goto toctprel;
}
if (retval == 2)
{
tls_gd = TLS_TPRELGD;
- if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
+ if ((tls_mask & TLS_TLS) != 0
+ && (tls_mask & TLS_GD) == 0)
goto tls_ldgd_opt;
}
else if (retval == 3)
{
- if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
+ if ((tls_mask & TLS_TLS) != 0
+ && (tls_mask & TLS_LD) == 0)
goto tls_ldgd_opt;
}
}
case R_PPC64_GOT_TPREL16_HI:
case R_PPC64_GOT_TPREL16_HA:
- if (tls_mask != 0
+ if ((tls_mask & TLS_TLS) != 0
&& (tls_mask & TLS_TPREL) == 0)
{
rel->r_offset -= d_offset;
case R_PPC64_GOT_TPREL16_DS:
case R_PPC64_GOT_TPREL16_LO_DS:
- if (tls_mask != 0
+ if ((tls_mask & TLS_TLS) != 0
&& (tls_mask & TLS_TPREL) == 0)
{
toctprel:
break;
case R_PPC64_TLS:
- if (tls_mask != 0
+ if ((tls_mask & TLS_TLS) != 0
&& (tls_mask & TLS_TPREL) == 0)
{
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
case R_PPC64_GOT_TLSGD16_HI:
case R_PPC64_GOT_TLSGD16_HA:
tls_gd = TLS_TPRELGD;
- if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
+ if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
goto tls_gdld_hi;
break;
case R_PPC64_GOT_TLSLD16_HI:
case R_PPC64_GOT_TLSLD16_HA:
- if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
+ if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
{
tls_gdld_hi:
if ((tls_mask & tls_gd) != 0)
case R_PPC64_GOT_TLSGD16:
case R_PPC64_GOT_TLSGD16_LO:
tls_gd = TLS_TPRELGD;
- if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
+ if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
goto tls_ldgd_opt;
break;
case R_PPC64_GOT_TLSLD16:
case R_PPC64_GOT_TLSLD16_LO:
- if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
+ if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
{
unsigned int insn1, insn2;
bfd_vma offset;
break;
case R_PPC64_TLSGD:
- if (tls_mask != 0 && (tls_mask & TLS_GD) == 0
+ if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
&& rel + 1 < relend)
{
unsigned int insn2;
break;
case R_PPC64_TLSLD:
- if (tls_mask != 0 && (tls_mask & TLS_LD) == 0
+ if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
&& rel + 1 < relend)
{
unsigned int insn2;
projects / deliverable / binutils-gdb.git / commitdiff
