+2008-08-20 Bob Wilson <bob.wilson@acm.org>
+
+ * elf-bfd.h (elf_object_id): Add XTENSA_ELF_TDATA.
+ * elf32-xtensa.c (elf_howto_table): Add TLS relocations.
+ (elf_xtensa_reloc_type_lookup): Likewise.
+ (TCB_SIZE): Define.
+ (elf_xtensa_link_hash_entry): New.
+ (GOT_UNKNOWN, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_TLS_ANY): Define.
+ (elf_xtensa_hash_entry): Define.
+ (elf_xtensa_obj_tdata): New.
+ (elf_xtensa_tdata): Define.
+ (elf_xtensa_local_got_tls_type): Define.
+ (elf_xtensa_local_tlsfunc_refcounts): Define.
+ (is_xtensa_elf): Define.
+ (elf_xtensa_mkobject): New.
+ (elf_xtensa_link_hash_table): Add tlsbase field.
+ (elf_xtensa_link_hash_newfunc): New.
+ (elf_xtensa_link_hash_table_create): Use elf_xtensa_link_hash_newfunc.
+ Create an entry for "_TLS_MODULE_BASE_" and save it in tlsbase field.
+ (elf_xtensa_copy_indirect_symbol): New.
+ (elf_xtensa_check_relocs): Rewrite to handle TLS relocations.
+ (elf_xtensa_gc_sweep_hook): Likewise.
+ (elf_xtensa_allocate_dynrelocs): Optimize away GOT entries for
+ TLSDESC_FN relocations when an IE reference is seen.
+ (elf_xtensa_allocate_local_got_size): Likewise.
+ (elf_xtensa_always_size_sections): New.
+ (dtpoff_base, tpoff): New.
+ (elf_xtensa_do_reloc): Handle TLS relocations.
+ (replace_tls_insn): New.
+ (IS_XTENSA_TLS_RELOC): Define.
+ (elf_xtensa_relocate_section): Handle TLS relocations.
+ (get_indirect_call_dest_reg): New.
+ (bfd_elf32_mkobject): Define.
+ (elf_backend_always_size_sections): New.
+ (elf_backend_copy_indirect_symbol): New.
+ * reloc.c (BFD_RELOC_XTENSA_TLSDESC_FN, BFD_RELOC_XTENSA_TLSDESC_ARG)
+ (BFD_RELOC_XTENSA_TLS_DTPOFF, BFD_RELOC_XTENSA_TLS_TPOFF)
+ (BFD_RELOC_XTENSA_TLS_FUNC, BFD_RELOC_XTENSA_TLS_ARG)
+ (BFD_RELOC_XTENSA_TLS_CALL): New.
+ * bfd-in2.h: Regenerate.
+ * libbfd.h: Regenerate.
+
2008-08-18 Richard Sandiford <rdsandiford@googlemail.com>
* elfxx-mips.c (_bfd_mips_elf_copy_indirect_symbol): Copy MIPS16
BFD_RELOC_XTENSA_ASM_EXPAND. */
BFD_RELOC_XTENSA_ASM_SIMPLIFY,
+/* Xtensa TLS relocations. */
+ BFD_RELOC_XTENSA_TLSDESC_FN,
+ BFD_RELOC_XTENSA_TLSDESC_ARG,
+ BFD_RELOC_XTENSA_TLS_DTPOFF,
+ BFD_RELOC_XTENSA_TLS_TPOFF,
+ BFD_RELOC_XTENSA_TLS_FUNC,
+ BFD_RELOC_XTENSA_TLS_ARG,
+ BFD_RELOC_XTENSA_TLS_CALL,
+
/* 8 bit signed offset in (ix+d) or (iy+d). */
BFD_RELOC_Z80_DISP8,
SH_ELF_TDATA,
SPARC_ELF_TDATA,
X86_64_ELF_TDATA,
+ XTENSA_ELF_TDATA,
GENERIC_ELF_TDATA
};
bfd_elf_xtensa_reloc, "R_XTENSA_SLOT13_ALT", FALSE, 0, 0, TRUE),
HOWTO (R_XTENSA_SLOT14_ALT, 0, 0, 0, TRUE, 0, complain_overflow_dont,
bfd_elf_xtensa_reloc, "R_XTENSA_SLOT14_ALT", FALSE, 0, 0, TRUE),
+
+ /* TLS relocations. */
+ HOWTO (R_XTENSA_TLSDESC_FN, 0, 2, 32, FALSE, 0, complain_overflow_dont,
+ bfd_elf_xtensa_reloc, "R_XTENSA_TLSDESC_FN",
+ FALSE, 0, 0xffffffff, FALSE),
+ HOWTO (R_XTENSA_TLSDESC_ARG, 0, 2, 32, FALSE, 0, complain_overflow_dont,
+ bfd_elf_xtensa_reloc, "R_XTENSA_TLSDESC_ARG",
+ FALSE, 0, 0xffffffff, FALSE),
+ HOWTO (R_XTENSA_TLS_DTPOFF, 0, 2, 32, FALSE, 0, complain_overflow_dont,
+ bfd_elf_xtensa_reloc, "R_XTENSA_TLS_DTPOFF",
+ FALSE, 0, 0xffffffff, FALSE),
+ HOWTO (R_XTENSA_TLS_TPOFF, 0, 2, 32, FALSE, 0, complain_overflow_dont,
+ bfd_elf_xtensa_reloc, "R_XTENSA_TLS_TPOFF",
+ FALSE, 0, 0xffffffff, FALSE),
+ HOWTO (R_XTENSA_TLS_FUNC, 0, 0, 0, FALSE, 0, complain_overflow_dont,
+ bfd_elf_xtensa_reloc, "R_XTENSA_TLS_FUNC",
+ FALSE, 0, 0, FALSE),
+ HOWTO (R_XTENSA_TLS_ARG, 0, 0, 0, FALSE, 0, complain_overflow_dont,
+ bfd_elf_xtensa_reloc, "R_XTENSA_TLS_ARG",
+ FALSE, 0, 0, FALSE),
+ HOWTO (R_XTENSA_TLS_CALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
+ bfd_elf_xtensa_reloc, "R_XTENSA_TLS_CALL",
+ FALSE, 0, 0, FALSE),
};
#if DEBUG_GEN_RELOC
TRACE ("BFD_RELOC_VTABLE_ENTRY");
return &elf_howto_table[(unsigned) R_XTENSA_GNU_VTENTRY ];
+ case BFD_RELOC_XTENSA_TLSDESC_FN:
+ TRACE ("BFD_RELOC_XTENSA_TLSDESC_FN");
+ return &elf_howto_table[(unsigned) R_XTENSA_TLSDESC_FN ];
+
+ case BFD_RELOC_XTENSA_TLSDESC_ARG:
+ TRACE ("BFD_RELOC_XTENSA_TLSDESC_ARG");
+ return &elf_howto_table[(unsigned) R_XTENSA_TLSDESC_ARG ];
+
+ case BFD_RELOC_XTENSA_TLS_DTPOFF:
+ TRACE ("BFD_RELOC_XTENSA_TLS_DTPOFF");
+ return &elf_howto_table[(unsigned) R_XTENSA_TLS_DTPOFF ];
+
+ case BFD_RELOC_XTENSA_TLS_TPOFF:
+ TRACE ("BFD_RELOC_XTENSA_TLS_TPOFF");
+ return &elf_howto_table[(unsigned) R_XTENSA_TLS_TPOFF ];
+
+ case BFD_RELOC_XTENSA_TLS_FUNC:
+ TRACE ("BFD_RELOC_XTENSA_TLS_FUNC");
+ return &elf_howto_table[(unsigned) R_XTENSA_TLS_FUNC ];
+
+ case BFD_RELOC_XTENSA_TLS_ARG:
+ TRACE ("BFD_RELOC_XTENSA_TLS_ARG");
+ return &elf_howto_table[(unsigned) R_XTENSA_TLS_ARG ];
+
+ case BFD_RELOC_XTENSA_TLS_CALL:
+ TRACE ("BFD_RELOC_XTENSA_TLS_CALL");
+ return &elf_howto_table[(unsigned) R_XTENSA_TLS_CALL ];
+
default:
if (code >= BFD_RELOC_XTENSA_SLOT0_OP
&& code <= BFD_RELOC_XTENSA_SLOT14_OP)
0 /* unused */
};
+/* The size of the thread control block. */
+#define TCB_SIZE 8
+
+struct elf_xtensa_link_hash_entry
+{
+ struct elf_link_hash_entry elf;
+
+ bfd_signed_vma tlsfunc_refcount;
+
+#define GOT_UNKNOWN 0
+#define GOT_NORMAL 1
+#define GOT_TLS_GD 2 /* global or local dynamic */
+#define GOT_TLS_IE 4 /* initial or local exec */
+#define GOT_TLS_ANY (GOT_TLS_GD | GOT_TLS_IE)
+ unsigned char tls_type;
+};
+
+#define elf_xtensa_hash_entry(ent) ((struct elf_xtensa_link_hash_entry *)(ent))
+
+struct elf_xtensa_obj_tdata
+{
+ struct elf_obj_tdata root;
+
+ /* tls_type for each local got entry. */
+ char *local_got_tls_type;
+
+ bfd_signed_vma *local_tlsfunc_refcounts;
+};
+
+#define elf_xtensa_tdata(abfd) \
+ ((struct elf_xtensa_obj_tdata *) (abfd)->tdata.any)
+
+#define elf_xtensa_local_got_tls_type(abfd) \
+ (elf_xtensa_tdata (abfd)->local_got_tls_type)
+
+#define elf_xtensa_local_tlsfunc_refcounts(abfd) \
+ (elf_xtensa_tdata (abfd)->local_tlsfunc_refcounts)
+
+#define is_xtensa_elf(bfd) \
+ (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
+ && elf_tdata (bfd) != NULL \
+ && elf_object_id (bfd) == XTENSA_ELF_TDATA)
+
+static bfd_boolean
+elf_xtensa_mkobject (bfd *abfd)
+{
+ return bfd_elf_allocate_object (abfd, sizeof (struct elf_xtensa_obj_tdata),
+ XTENSA_ELF_TDATA);
+}
+
/* Xtensa ELF linker hash table. */
struct elf_xtensa_link_hash_table
needed. It is OK if this count is an overestimate, e.g., some
relocations may be removed by GC. */
int plt_reloc_count;
+
+ struct elf_xtensa_link_hash_entry *tlsbase;
};
/* Get the Xtensa ELF linker hash table from a link_info structure. */
#define elf_xtensa_hash_table(p) \
((struct elf_xtensa_link_hash_table *) ((p)->hash))
+/* Create an entry in an Xtensa ELF linker hash table. */
+
+static struct bfd_hash_entry *
+elf_xtensa_link_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
+{
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (entry == NULL)
+ {
+ entry = bfd_hash_allocate (table,
+ sizeof (struct elf_xtensa_link_hash_entry));
+ if (entry == NULL)
+ return entry;
+ }
+
+ /* Call the allocation method of the superclass. */
+ entry = _bfd_elf_link_hash_newfunc (entry, table, string);
+ if (entry != NULL)
+ {
+ struct elf_xtensa_link_hash_entry *eh = elf_xtensa_hash_entry (entry);
+ eh->tlsfunc_refcount = 0;
+ eh->tls_type = GOT_UNKNOWN;
+ }
+
+ return entry;
+}
+
/* Create an Xtensa ELF linker hash table. */
static struct bfd_link_hash_table *
elf_xtensa_link_hash_table_create (bfd *abfd)
{
+ struct elf_link_hash_entry *tlsbase;
struct elf_xtensa_link_hash_table *ret;
bfd_size_type amt = sizeof (struct elf_xtensa_link_hash_table);
return NULL;
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
- _bfd_elf_link_hash_newfunc,
- sizeof (struct elf_link_hash_entry)))
+ elf_xtensa_link_hash_newfunc,
+ sizeof (struct elf_xtensa_link_hash_entry)))
{
free (ret);
return NULL;
ret->plt_reloc_count = 0;
+ /* Create a hash entry for "_TLS_MODULE_BASE_" to speed up checking
+ for it later. */
+ tlsbase = elf_link_hash_lookup (&ret->elf, "_TLS_MODULE_BASE_",
+ TRUE, FALSE, FALSE);
+ tlsbase->root.type = bfd_link_hash_new;
+ tlsbase->root.u.undef.abfd = NULL;
+ tlsbase->non_elf = 0;
+ ret->tlsbase = elf_xtensa_hash_entry (tlsbase);
+ ret->tlsbase->tls_type = GOT_UNKNOWN;
+
return &ret->elf.root;
}
+/* Copy the extra info we tack onto an elf_link_hash_entry. */
+
+static void
+elf_xtensa_copy_indirect_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *dir,
+ struct elf_link_hash_entry *ind)
+{
+ struct elf_xtensa_link_hash_entry *edir, *eind;
+
+ edir = elf_xtensa_hash_entry (dir);
+ eind = elf_xtensa_hash_entry (ind);
+
+ if (ind->root.type == bfd_link_hash_indirect)
+ {
+ edir->tlsfunc_refcount += eind->tlsfunc_refcount;
+ eind->tlsfunc_refcount = 0;
+
+ if (dir->got.refcount <= 0)
+ {
+ edir->tls_type = eind->tls_type;
+ eind->tls_type = GOT_UNKNOWN;
+ }
+ }
+
+ _bfd_elf_link_hash_copy_indirect (info, dir, ind);
+}
+
static inline bfd_boolean
elf_xtensa_dynamic_symbol_p (struct elf_link_hash_entry *h,
struct bfd_link_info *info)
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
- if (info->relocatable)
+ if (info->relocatable || (sec->flags & SEC_ALLOC) == 0)
return TRUE;
+ BFD_ASSERT (is_xtensa_elf (abfd));
+
htab = elf_xtensa_hash_table (info);
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
{
unsigned int r_type;
unsigned long r_symndx;
- struct elf_link_hash_entry *h;
+ struct elf_link_hash_entry *h = NULL;
+ struct elf_xtensa_link_hash_entry *eh;
+ int tls_type, old_tls_type;
+ bfd_boolean is_got = FALSE;
+ bfd_boolean is_plt = FALSE;
+ bfd_boolean is_tlsfunc = FALSE;
r_symndx = ELF32_R_SYM (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
return FALSE;
}
- if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
- else
+ if (r_symndx >= symtab_hdr->sh_info)
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
}
+ eh = elf_xtensa_hash_entry (h);
switch (r_type)
{
- case R_XTENSA_32:
- if (h == NULL)
- goto local_literal;
+ case R_XTENSA_TLSDESC_FN:
+ if (info->shared)
+ {
+ tls_type = GOT_TLS_GD;
+ is_got = TRUE;
+ is_tlsfunc = TRUE;
+ }
+ else
+ tls_type = GOT_TLS_IE;
+ break;
- if ((sec->flags & SEC_ALLOC) != 0)
+ case R_XTENSA_TLSDESC_ARG:
+ if (info->shared)
{
- if (h->got.refcount <= 0)
- h->got.refcount = 1;
- else
- h->got.refcount += 1;
+ tls_type = GOT_TLS_GD;
+ is_got = TRUE;
+ }
+ else
+ {
+ tls_type = GOT_TLS_IE;
+ if (h && elf_xtensa_hash_entry (h) != htab->tlsbase)
+ is_got = TRUE;
}
break;
+ case R_XTENSA_TLS_DTPOFF:
+ if (info->shared)
+ tls_type = GOT_TLS_GD;
+ else
+ tls_type = GOT_TLS_IE;
+ break;
+
+ case R_XTENSA_TLS_TPOFF:
+ tls_type = GOT_TLS_IE;
+ if (info->shared)
+ info->flags |= DF_STATIC_TLS;
+ if (info->shared || h)
+ is_got = TRUE;
+ break;
+
+ case R_XTENSA_32:
+ tls_type = GOT_NORMAL;
+ is_got = TRUE;
+ break;
+
case R_XTENSA_PLT:
- /* If this relocation is against a local symbol, then it's
- exactly the same as a normal local GOT entry. */
- if (h == NULL)
- goto local_literal;
+ tls_type = GOT_NORMAL;
+ is_plt = TRUE;
+ break;
- if ((sec->flags & SEC_ALLOC) != 0)
+ case R_XTENSA_GNU_VTINHERIT:
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ continue;
+
+ case R_XTENSA_GNU_VTENTRY:
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ continue;
+
+ default:
+ /* Nothing to do for any other relocations. */
+ continue;
+ }
+
+ if (h)
+ {
+ if (is_plt)
{
- if (h->plt.refcount <= 0)
- {
- h->needs_plt = 1;
- h->plt.refcount = 1;
- }
- else
- h->plt.refcount += 1;
+ h->plt.refcount += 1;
+ h->needs_plt = 1;
/* Keep track of the total PLT relocation count even if we
don't yet know whether the dynamic sections will be
return FALSE;
}
}
- break;
+ else if (is_got)
+ h->got.refcount += 1;
+
+ if (is_tlsfunc)
+ eh->tlsfunc_refcount += 1;
- local_literal:
- if ((sec->flags & SEC_ALLOC) != 0)
+ old_tls_type = eh->tls_type;
+ }
+ else
+ {
+ /* Allocate storage the first time. */
+ if (elf_local_got_refcounts (abfd) == NULL)
{
- bfd_signed_vma *local_got_refcounts;
+ bfd_size_type size = symtab_hdr->sh_info;
+ void *mem;
- /* This is a global offset table entry for a local symbol. */
- local_got_refcounts = elf_local_got_refcounts (abfd);
- if (local_got_refcounts == NULL)
- {
- bfd_size_type size;
+ mem = bfd_zalloc (abfd, size * sizeof (bfd_signed_vma));
+ if (mem == NULL)
+ return FALSE;
+ elf_local_got_refcounts (abfd) = (bfd_signed_vma *) mem;
- size = symtab_hdr->sh_info;
- size *= sizeof (bfd_signed_vma);
- local_got_refcounts =
- (bfd_signed_vma *) bfd_zalloc (abfd, size);
- if (local_got_refcounts == NULL)
- return FALSE;
- elf_local_got_refcounts (abfd) = local_got_refcounts;
- }
- local_got_refcounts[r_symndx] += 1;
+ mem = bfd_zalloc (abfd, size);
+ if (mem == NULL)
+ return FALSE;
+ elf_xtensa_local_got_tls_type (abfd) = (char *) mem;
+
+ mem = bfd_zalloc (abfd, size * sizeof (bfd_signed_vma));
+ if (mem == NULL)
+ return FALSE;
+ elf_xtensa_local_tlsfunc_refcounts (abfd)
+ = (bfd_signed_vma *) mem;
}
- break;
- case R_XTENSA_GNU_VTINHERIT:
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return FALSE;
- break;
+ /* This is a global offset table entry for a local symbol. */
+ if (is_got || is_plt)
+ elf_local_got_refcounts (abfd) [r_symndx] += 1;
- case R_XTENSA_GNU_VTENTRY:
- /* This relocation describes which C++ vtable entries are actually
- used. Record for later use during GC. */
- BFD_ASSERT (h != NULL);
- if (h != NULL
- && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return FALSE;
- break;
+ if (is_tlsfunc)
+ elf_xtensa_local_tlsfunc_refcounts (abfd) [r_symndx] += 1;
- default:
- break;
+ old_tls_type = elf_xtensa_local_got_tls_type (abfd) [r_symndx];
+ }
+
+ if ((old_tls_type & GOT_TLS_IE) && (tls_type & GOT_TLS_IE))
+ tls_type |= old_tls_type;
+ /* If a TLS symbol is accessed using IE at least once,
+ there is no point to use a dynamic model for it. */
+ else if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
+ && ((old_tls_type & GOT_TLS_GD) == 0
+ || (tls_type & GOT_TLS_IE) == 0))
+ {
+ if ((old_tls_type & GOT_TLS_IE) && (tls_type & GOT_TLS_GD))
+ tls_type = old_tls_type;
+ else if ((old_tls_type & GOT_TLS_GD) && (tls_type & GOT_TLS_GD))
+ tls_type |= old_tls_type;
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%B: `%s' accessed both as normal and thread local symbol"),
+ abfd,
+ h ? h->root.root.string : "<local>");
+ return FALSE;
+ }
+ }
+
+ if (old_tls_type != tls_type)
+ {
+ if (eh)
+ eh->tls_type = tls_type;
+ else
+ elf_xtensa_local_got_tls_type (abfd) [r_symndx] = tls_type;
}
}
static bfd_boolean
elf_xtensa_gc_sweep_hook (bfd *abfd,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
asection *sec,
const Elf_Internal_Rela *relocs)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
- bfd_signed_vma *local_got_refcounts;
const Elf_Internal_Rela *rel, *relend;
+ struct elf_xtensa_link_hash_table *htab;
+
+ htab = elf_xtensa_hash_table (info);
if (info->relocatable)
return TRUE;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- local_got_refcounts = elf_local_got_refcounts (abfd);
relend = relocs + sec->reloc_count;
for (rel = relocs; rel < relend; rel++)
unsigned long r_symndx;
unsigned int r_type;
struct elf_link_hash_entry *h = NULL;
+ struct elf_xtensa_link_hash_entry *eh;
+ bfd_boolean is_got = FALSE;
+ bfd_boolean is_plt = FALSE;
+ bfd_boolean is_tlsfunc = FALSE;
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx >= symtab_hdr->sh_info)
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
}
+ eh = elf_xtensa_hash_entry (h);
r_type = ELF32_R_TYPE (rel->r_info);
switch (r_type)
{
- case R_XTENSA_32:
- if (h == NULL)
- goto local_literal;
- if (h->got.refcount > 0)
- h->got.refcount--;
+ case R_XTENSA_TLSDESC_FN:
+ if (info->shared)
+ {
+ is_got = TRUE;
+ is_tlsfunc = TRUE;
+ }
break;
- case R_XTENSA_PLT:
- if (h == NULL)
- goto local_literal;
- if (h->plt.refcount > 0)
- h->plt.refcount--;
+ case R_XTENSA_TLSDESC_ARG:
+ if (info->shared)
+ is_got = TRUE;
+ else
+ {
+ if (h && elf_xtensa_hash_entry (h) != htab->tlsbase)
+ is_got = TRUE;
+ }
break;
- local_literal:
- if (local_got_refcounts[r_symndx] > 0)
- local_got_refcounts[r_symndx] -= 1;
+ case R_XTENSA_TLS_TPOFF:
+ if (info->shared || h)
+ is_got = TRUE;
break;
- default:
+ case R_XTENSA_32:
+ is_got = TRUE;
break;
+
+ case R_XTENSA_PLT:
+ is_plt = TRUE;
+ break;
+
+ default:
+ continue;
+ }
+
+ if (h)
+ {
+ if (is_plt)
+ {
+ if (h->plt.refcount > 0)
+ h->plt.refcount--;
+ }
+ else if (is_got)
+ {
+ if (h->got.refcount > 0)
+ h->got.refcount--;
+ }
+ if (is_tlsfunc)
+ {
+ if (eh->tlsfunc_refcount > 0)
+ eh->tlsfunc_refcount--;
+ }
+ }
+ else
+ {
+ if (is_got || is_plt)
+ {
+ bfd_signed_vma *got_refcount
+ = &elf_local_got_refcounts (abfd) [r_symndx];
+ if (*got_refcount > 0)
+ *got_refcount -= 1;
+ }
+ if (is_tlsfunc)
+ {
+ bfd_signed_vma *tlsfunc_refcount
+ = &elf_xtensa_local_tlsfunc_refcounts (abfd) [r_symndx];
+ if (*tlsfunc_refcount > 0)
+ *tlsfunc_refcount -= 1;
+ }
}
}
{
struct bfd_link_info *info;
struct elf_xtensa_link_hash_table *htab;
- bfd_boolean is_dynamic;
+ struct elf_xtensa_link_hash_entry *eh = elf_xtensa_hash_entry (h);
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
info = (struct bfd_link_info *) arg;
htab = elf_xtensa_hash_table (info);
- is_dynamic = elf_xtensa_dynamic_symbol_p (h, info);
+ /* If we saw any use of an IE model for this symbol, we can then optimize
+ away GOT entries for any TLSDESC_FN relocs. */
+ if ((eh->tls_type & GOT_TLS_IE) != 0)
+ {
+ BFD_ASSERT (h->got.refcount >= eh->tlsfunc_refcount);
+ h->got.refcount -= eh->tlsfunc_refcount;
+ }
- if (! is_dynamic)
+ if (! elf_xtensa_dynamic_symbol_p (h, info))
elf_xtensa_make_sym_local (info, h);
if (h->plt.refcount > 0)
for (j = 0; j < cnt; ++j)
{
+ /* If we saw any use of an IE model for this symbol, we can
+ then optimize away GOT entries for any TLSDESC_FN relocs. */
+ if ((elf_xtensa_local_got_tls_type (i) [j] & GOT_TLS_IE) != 0)
+ {
+ bfd_signed_vma *tlsfunc_refcount
+ = &elf_xtensa_local_tlsfunc_refcounts (i) [j];
+ BFD_ASSERT (local_got_refcounts[j] >= *tlsfunc_refcount);
+ local_got_refcounts[j] -= *tlsfunc_refcount;
+ }
+
if (local_got_refcounts[j] > 0)
htab->srelgot->size += (local_got_refcounts[j]
* sizeof (Elf32_External_Rela));
return TRUE;
}
+static bfd_boolean
+elf_xtensa_always_size_sections (bfd *output_bfd,
+ struct bfd_link_info *info)
+{
+ struct elf_xtensa_link_hash_table *htab;
+ asection *tls_sec;
+
+ htab = elf_xtensa_hash_table (info);
+ tls_sec = htab->elf.tls_sec;
+
+ if (tls_sec && (htab->tlsbase->tls_type & GOT_TLS_ANY) != 0)
+ {
+ struct elf_link_hash_entry *tlsbase = &htab->tlsbase->elf;
+ struct bfd_link_hash_entry *bh = &tlsbase->root;
+ const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
+
+ tlsbase->type = STT_TLS;
+ if (!(_bfd_generic_link_add_one_symbol
+ (info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL,
+ tls_sec, 0, NULL, FALSE,
+ bed->collect, &bh)))
+ return FALSE;
+ tlsbase->def_regular = 1;
+ tlsbase->other = STV_HIDDEN;
+ (*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE);
+ }
+
+ return TRUE;
+}
+
\f
+/* Return the base VMA address which should be subtracted from real addresses
+ when resolving @dtpoff relocation.
+ This is PT_TLS segment p_vaddr. */
+
+static bfd_vma
+dtpoff_base (struct bfd_link_info *info)
+{
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (elf_hash_table (info)->tls_sec == NULL)
+ return 0;
+ return elf_hash_table (info)->tls_sec->vma;
+}
+
+/* Return the relocation value for @tpoff relocation
+ if STT_TLS virtual address is ADDRESS. */
+
+static bfd_vma
+tpoff (struct bfd_link_info *info, bfd_vma address)
+{
+ struct elf_link_hash_table *htab = elf_hash_table (info);
+ bfd_vma base;
+
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (htab->tls_sec == NULL)
+ return 0;
+ base = align_power ((bfd_vma) TCB_SIZE, htab->tls_sec->alignment_power);
+ return address - htab->tls_sec->vma + base;
+}
+
/* Perform the specified relocation. The instruction at (contents + address)
is modified to set one operand to represent the value in "relocation". The
operand position is determined by the relocation type recorded in the
case R_XTENSA_DIFF8:
case R_XTENSA_DIFF16:
case R_XTENSA_DIFF32:
+ case R_XTENSA_TLS_FUNC:
+ case R_XTENSA_TLS_ARG:
+ case R_XTENSA_TLS_CALL:
return bfd_reloc_ok;
case R_XTENSA_ASM_EXPAND:
break;
case R_XTENSA_32:
- case R_XTENSA_PLT:
{
bfd_vma x;
x = bfd_get_32 (abfd, contents + address);
case R_XTENSA_32_PCREL:
bfd_put_32 (abfd, relocation - self_address, contents + address);
return bfd_reloc_ok;
+
+ case R_XTENSA_PLT:
+ case R_XTENSA_TLSDESC_FN:
+ case R_XTENSA_TLSDESC_ARG:
+ case R_XTENSA_TLS_DTPOFF:
+ case R_XTENSA_TLS_TPOFF:
+ bfd_put_32 (abfd, relocation, contents + address);
+ return bfd_reloc_ok;
}
/* Only instruction slot-specific relocations handled below.... */
}
+static bfd_boolean get_indirect_call_dest_reg (xtensa_opcode, unsigned *);
+
+static bfd_boolean
+replace_tls_insn (Elf_Internal_Rela *rel,
+ bfd *abfd,
+ asection *input_section,
+ bfd_byte *contents,
+ bfd_boolean is_ld_model,
+ char **error_message)
+{
+ static xtensa_insnbuf ibuff = NULL;
+ static xtensa_insnbuf sbuff = NULL;
+ xtensa_isa isa = xtensa_default_isa;
+ xtensa_format fmt;
+ xtensa_opcode old_op, new_op;
+ bfd_size_type input_size;
+ int r_type;
+ unsigned dest_reg, src_reg;
+
+ if (ibuff == NULL)
+ {
+ ibuff = xtensa_insnbuf_alloc (isa);
+ sbuff = xtensa_insnbuf_alloc (isa);
+ }
+
+ input_size = bfd_get_section_limit (abfd, input_section);
+
+ /* Read the instruction into a buffer and decode the opcode. */
+ xtensa_insnbuf_from_chars (isa, ibuff, contents + rel->r_offset,
+ input_size - rel->r_offset);
+ fmt = xtensa_format_decode (isa, ibuff);
+ if (fmt == XTENSA_UNDEFINED)
+ {
+ *error_message = "cannot decode instruction format";
+ return FALSE;
+ }
+
+ BFD_ASSERT (xtensa_format_num_slots (isa, fmt) == 1);
+ xtensa_format_get_slot (isa, fmt, 0, ibuff, sbuff);
+
+ old_op = xtensa_opcode_decode (isa, fmt, 0, sbuff);
+ if (old_op == XTENSA_UNDEFINED)
+ {
+ *error_message = "cannot decode instruction opcode";
+ return FALSE;
+ }
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ switch (r_type)
+ {
+ case R_XTENSA_TLS_FUNC:
+ case R_XTENSA_TLS_ARG:
+ if (old_op != get_l32r_opcode ()
+ || xtensa_operand_get_field (isa, old_op, 0, fmt, 0,
+ sbuff, &dest_reg) != 0)
+ {
+ *error_message = "cannot extract L32R destination for TLS access";
+ return FALSE;
+ }
+ break;
+
+ case R_XTENSA_TLS_CALL:
+ if (! get_indirect_call_dest_reg (old_op, &dest_reg)
+ || xtensa_operand_get_field (isa, old_op, 0, fmt, 0,
+ sbuff, &src_reg) != 0)
+ {
+ *error_message = "cannot extract CALLXn operands for TLS access";
+ return FALSE;
+ }
+ break;
+
+ default:
+ abort ();
+ }
+
+ if (is_ld_model)
+ {
+ switch (r_type)
+ {
+ case R_XTENSA_TLS_FUNC:
+ case R_XTENSA_TLS_ARG:
+ /* Change the instruction to a NOP (or "OR a1, a1, a1" for older
+ versions of Xtensa). */
+ new_op = xtensa_opcode_lookup (isa, "nop");
+ if (new_op == XTENSA_UNDEFINED)
+ {
+ new_op = xtensa_opcode_lookup (isa, "or");
+ if (new_op == XTENSA_UNDEFINED
+ || xtensa_opcode_encode (isa, fmt, 0, sbuff, new_op) != 0
+ || xtensa_operand_set_field (isa, new_op, 0, fmt, 0,
+ sbuff, 1) != 0
+ || xtensa_operand_set_field (isa, new_op, 1, fmt, 0,
+ sbuff, 1) != 0
+ || xtensa_operand_set_field (isa, new_op, 2, fmt, 0,
+ sbuff, 1) != 0)
+ {
+ *error_message = "cannot encode OR for TLS access";
+ return FALSE;
+ }
+ }
+ else
+ {
+ if (xtensa_opcode_encode (isa, fmt, 0, sbuff, new_op) != 0)
+ {
+ *error_message = "cannot encode NOP for TLS access";
+ return FALSE;
+ }
+ }
+ break;
+
+ case R_XTENSA_TLS_CALL:
+ /* Read THREADPTR into the CALLX's return value register. */
+ new_op = xtensa_opcode_lookup (isa, "rur.threadptr");
+ if (new_op == XTENSA_UNDEFINED
+ || xtensa_opcode_encode (isa, fmt, 0, sbuff, new_op) != 0
+ || xtensa_operand_set_field (isa, new_op, 0, fmt, 0,
+ sbuff, dest_reg + 2) != 0)
+ {
+ *error_message = "cannot encode RUR.THREADPTR for TLS access";
+ return FALSE;
+ }
+ break;
+ }
+ }
+ else
+ {
+ switch (r_type)
+ {
+ case R_XTENSA_TLS_FUNC:
+ new_op = xtensa_opcode_lookup (isa, "rur.threadptr");
+ if (new_op == XTENSA_UNDEFINED
+ || xtensa_opcode_encode (isa, fmt, 0, sbuff, new_op) != 0
+ || xtensa_operand_set_field (isa, new_op, 0, fmt, 0,
+ sbuff, dest_reg) != 0)
+ {
+ *error_message = "cannot encode RUR.THREADPTR for TLS access";
+ return FALSE;
+ }
+ break;
+
+ case R_XTENSA_TLS_ARG:
+ /* Nothing to do. Keep the original L32R instruction. */
+ return TRUE;
+
+ case R_XTENSA_TLS_CALL:
+ /* Add the CALLX's src register (holding the THREADPTR value)
+ to the first argument register (holding the offset) and put
+ the result in the CALLX's return value register. */
+ new_op = xtensa_opcode_lookup (isa, "add");
+ if (new_op == XTENSA_UNDEFINED
+ || xtensa_opcode_encode (isa, fmt, 0, sbuff, new_op) != 0
+ || xtensa_operand_set_field (isa, new_op, 0, fmt, 0,
+ sbuff, dest_reg + 2) != 0
+ || xtensa_operand_set_field (isa, new_op, 1, fmt, 0,
+ sbuff, dest_reg + 2) != 0
+ || xtensa_operand_set_field (isa, new_op, 2, fmt, 0,
+ sbuff, src_reg) != 0)
+ {
+ *error_message = "cannot encode ADD for TLS access";
+ return FALSE;
+ }
+ break;
+ }
+ }
+
+ xtensa_format_set_slot (isa, fmt, 0, ibuff, sbuff);
+ xtensa_insnbuf_to_chars (isa, ibuff, contents + rel->r_offset,
+ input_size - rel->r_offset);
+
+ return TRUE;
+}
+
+
+#define IS_XTENSA_TLS_RELOC(R_TYPE) \
+ ((R_TYPE) == R_XTENSA_TLSDESC_FN \
+ || (R_TYPE) == R_XTENSA_TLSDESC_ARG \
+ || (R_TYPE) == R_XTENSA_TLS_DTPOFF \
+ || (R_TYPE) == R_XTENSA_TLS_TPOFF \
+ || (R_TYPE) == R_XTENSA_TLS_FUNC \
+ || (R_TYPE) == R_XTENSA_TLS_ARG \
+ || (R_TYPE) == R_XTENSA_TLS_CALL)
+
/* Relocate an Xtensa ELF section. This is invoked by the linker for
both relocatable and final links. */
struct elf_link_hash_entry **sym_hashes;
property_table_entry *lit_table = 0;
int ltblsize = 0;
+ char *local_got_tls_types;
char *error_message = NULL;
bfd_size_type input_size;
+ int tls_type;
if (!xtensa_default_isa)
xtensa_default_isa = xtensa_isa_init (0, 0);
+ BFD_ASSERT (is_xtensa_elf (input_bfd));
+
htab = elf_xtensa_hash_table (info);
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
+ local_got_tls_types = elf_xtensa_local_got_tls_type (input_bfd);
if (elf_hash_table (info)->dynamic_sections_created)
{
unsigned long r_symndx;
struct elf_link_hash_entry *h;
Elf_Internal_Sym *sym;
+ char sym_type;
+ const char *name;
asection *sec;
bfd_vma relocation;
bfd_reloc_status_type r;
bfd_boolean is_weak_undef;
bfd_boolean unresolved_reloc;
bfd_boolean warned;
+ bfd_boolean dynamic_symbol;
r_type = ELF32_R_TYPE (rel->r_info);
if (r_type == (int) R_XTENSA_GNU_VTINHERIT
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
+ sym_type = ELF32_ST_TYPE (sym->st_info);
sec = local_sections[r_symndx];
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
}
&& !unresolved_reloc
&& h->root.type == bfd_link_hash_undefweak)
is_weak_undef = TRUE;
+
+ sym_type = h->type;
}
if (sec != NULL && elf_discarded_section (sec))
return FALSE;
}
- /* Generate dynamic relocations. */
- if (elf_hash_table (info)->dynamic_sections_created)
+ if (h != NULL)
+ name = h->root.root.string;
+ else
{
- bfd_boolean dynamic_symbol = elf_xtensa_dynamic_symbol_p (h, info);
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name));
+ if (name == NULL || *name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
- if (dynamic_symbol && (is_operand_relocation (r_type)
- || r_type == R_XTENSA_32_PCREL))
- {
- const char *name = h->root.root.string;
- error_message =
- vsprint_msg ("invalid relocation for dynamic symbol", ": %s",
- strlen (name) + 2, name);
- if (!((*info->callbacks->reloc_dangerous)
- (info, error_message, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
- continue;
- }
- else if ((r_type == R_XTENSA_32 || r_type == R_XTENSA_PLT)
- && (input_section->flags & SEC_ALLOC) != 0
- && (dynamic_symbol || info->shared))
+ if (r_symndx != 0
+ && r_type != R_XTENSA_NONE
+ && (h == NULL
+ || h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && IS_XTENSA_TLS_RELOC (r_type) != (sym_type == STT_TLS))
+ {
+ (*_bfd_error_handler)
+ ((sym_type == STT_TLS
+ ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
+ : _("%B(%A+0x%lx): %s used with non-TLS symbol %s")),
+ input_bfd,
+ input_section,
+ (long) rel->r_offset,
+ howto->name,
+ name);
+ }
+
+ dynamic_symbol = elf_xtensa_dynamic_symbol_p (h, info);
+
+ tls_type = GOT_UNKNOWN;
+ if (h)
+ tls_type = elf_xtensa_hash_entry (h)->tls_type;
+ else if (local_got_tls_types)
+ tls_type = local_got_tls_types [r_symndx];
+
+ switch (r_type)
+ {
+ case R_XTENSA_32:
+ case R_XTENSA_PLT:
+ if (elf_hash_table (info)->dynamic_sections_created
+ && (input_section->flags & SEC_ALLOC) != 0
+ && (dynamic_symbol || info->shared))
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
Just ignore these relocations. */
continue;
}
+ break;
+
+ case R_XTENSA_TLS_TPOFF:
+ /* Switch to LE model for local symbols in an executable. */
+ if (! info->shared && ! dynamic_symbol)
+ {
+ relocation = tpoff (info, relocation);
+ break;
+ }
+ /* fall through */
+
+ case R_XTENSA_TLSDESC_FN:
+ case R_XTENSA_TLSDESC_ARG:
+ {
+ if (r_type == R_XTENSA_TLSDESC_FN)
+ {
+ if (! info->shared || (tls_type & GOT_TLS_IE) != 0)
+ r_type = R_XTENSA_NONE;
+ }
+ else if (r_type == R_XTENSA_TLSDESC_ARG)
+ {
+ if (info->shared)
+ {
+ if ((tls_type & GOT_TLS_IE) != 0)
+ r_type = R_XTENSA_TLS_TPOFF;
+ }
+ else
+ {
+ r_type = R_XTENSA_TLS_TPOFF;
+ if (! dynamic_symbol)
+ {
+ relocation = tpoff (info, relocation);
+ break;
+ }
+ }
+ }
+
+ if (r_type == R_XTENSA_NONE)
+ /* Nothing to do here; skip to the next reloc. */
+ continue;
+
+ if (! elf_hash_table (info)->dynamic_sections_created)
+ {
+ error_message =
+ _("TLS relocation invalid without dynamic sections");
+ if (!((*info->callbacks->reloc_dangerous)
+ (info, error_message, input_bfd, input_section,
+ rel->r_offset)))
+ return FALSE;
+ }
+ else
+ {
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+ asection *srel = htab->srelgot;
+ int indx;
+
+ outrel.r_offset = (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset);
+
+ /* Complain if the relocation is in a read-only section
+ and not in a literal pool. */
+ if ((input_section->flags & SEC_READONLY) != 0
+ && ! elf_xtensa_in_literal_pool (lit_table, ltblsize,
+ outrel.r_offset))
+ {
+ error_message =
+ _("dynamic relocation in read-only section");
+ if (!((*info->callbacks->reloc_dangerous)
+ (info, error_message, input_bfd, input_section,
+ rel->r_offset)))
+ return FALSE;
+ }
+
+ indx = h && h->dynindx != -1 ? h->dynindx : 0;
+ if (indx == 0)
+ outrel.r_addend = relocation - dtpoff_base (info);
+ else
+ outrel.r_addend = 0;
+ rel->r_addend = 0;
+
+ outrel.r_info = ELF32_R_INFO (indx, r_type);
+ relocation = 0;
+ unresolved_reloc = FALSE;
+
+ BFD_ASSERT (srel);
+ loc = (srel->contents
+ + srel->reloc_count++ * sizeof (Elf32_External_Rela));
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ BFD_ASSERT (sizeof (Elf32_External_Rela) * srel->reloc_count
+ <= srel->size);
+ }
+ }
+ break;
+
+ case R_XTENSA_TLS_DTPOFF:
+ if (! info->shared)
+ /* Switch from LD model to LE model. */
+ relocation = tpoff (info, relocation);
+ else
+ relocation -= dtpoff_base (info);
+ break;
+
+ case R_XTENSA_TLS_FUNC:
+ case R_XTENSA_TLS_ARG:
+ case R_XTENSA_TLS_CALL:
+ /* Check if optimizing to IE or LE model. */
+ if ((tls_type & GOT_TLS_IE) != 0)
+ {
+ bfd_boolean is_ld_model =
+ (h && elf_xtensa_hash_entry (h) == htab->tlsbase);
+ if (! replace_tls_insn (rel, input_bfd, input_section, contents,
+ is_ld_model, &error_message))
+ {
+ if (!((*info->callbacks->reloc_dangerous)
+ (info, error_message, input_bfd, input_section,
+ rel->r_offset)))
+ return FALSE;
+ }
+
+ if (r_type != R_XTENSA_TLS_ARG || is_ld_model)
+ {
+ /* Skip subsequent relocations on the same instruction. */
+ while (rel + 1 < relend && rel[1].r_offset == rel->r_offset)
+ rel++;
+ }
+ }
+ continue;
+
+ default:
+ if (elf_hash_table (info)->dynamic_sections_created
+ && dynamic_symbol && (is_operand_relocation (r_type)
+ || r_type == R_XTENSA_32_PCREL))
+ {
+ error_message =
+ vsprint_msg ("invalid relocation for dynamic symbol", ": %s",
+ strlen (name) + 2, name);
+ if (!((*info->callbacks->reloc_dangerous)
+ (info, error_message, input_bfd, input_section,
+ rel->r_offset)))
+ return FALSE;
+ continue;
+ }
+ break;
}
/* Dynamic relocs are not propagated for SEC_DEBUGGING sections
input_section,
(long) rel->r_offset,
howto->name,
- h->root.root.string);
+ name);
return FALSE;
}
+ /* TLS optimizations may have changed r_type; update "howto". */
+ howto = &elf_howto_table[r_type];
+
/* There's no point in calling bfd_perform_relocation here.
Just go directly to our "special function". */
r = elf_xtensa_do_reloc (howto, input_bfd, input_section,
if (r != bfd_reloc_ok && !warned)
{
- const char *name;
-
BFD_ASSERT (r == bfd_reloc_dangerous || r == bfd_reloc_other);
BFD_ASSERT (error_message != NULL);
- if (h)
- name = h->root.root.string;
+ if (rel->r_addend == 0)
+ error_message = vsprint_msg (error_message, ": %s",
+ strlen (name) + 2, name);
else
- {
- name = bfd_elf_string_from_elf_section
- (input_bfd, symtab_hdr->sh_link, sym->st_name);
- if (name && *name == '\0')
- name = bfd_section_name (input_bfd, sec);
- }
- if (name)
- {
- if (rel->r_addend == 0)
- error_message = vsprint_msg (error_message, ": %s",
- strlen (name) + 2, name);
- else
- error_message = vsprint_msg (error_message, ": (%s+0x%x)",
- strlen (name) + 22,
- name, (int)rel->r_addend);
- }
+ error_message = vsprint_msg (error_message, ": (%s+0x%x)",
+ strlen (name) + 22,
+ name, (int) rel->r_addend);
if (!((*info->callbacks->reloc_dangerous)
(info, error_message, input_bfd, input_section,
}
+static bfd_boolean
+get_indirect_call_dest_reg (xtensa_opcode opcode, unsigned *pdst)
+{
+ unsigned dst = (unsigned) -1;
+
+ init_call_opcodes ();
+ if (opcode == callx0_op)
+ dst = 0;
+ else if (opcode == callx4_op)
+ dst = 4;
+ else if (opcode == callx8_op)
+ dst = 8;
+ else if (opcode == callx12_op)
+ dst = 12;
+
+ if (dst == (unsigned) -1)
+ return FALSE;
+
+ *pdst = dst;
+ return TRUE;
+}
+
+
static xtensa_opcode
get_const16_opcode (void)
{
#define elf_info_to_howto elf_xtensa_info_to_howto_rela
+#define bfd_elf32_mkobject elf_xtensa_mkobject
+
#define bfd_elf32_bfd_merge_private_bfd_data elf_xtensa_merge_private_bfd_data
#define bfd_elf32_new_section_hook elf_xtensa_new_section_hook
#define bfd_elf32_bfd_print_private_bfd_data elf_xtensa_print_private_bfd_data
#define elf_backend_reloc_type_class elf_xtensa_reloc_type_class
#define elf_backend_relocate_section elf_xtensa_relocate_section
#define elf_backend_size_dynamic_sections elf_xtensa_size_dynamic_sections
+#define elf_backend_always_size_sections elf_xtensa_always_size_sections
#define elf_backend_omit_section_dynsym \
((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
#define elf_backend_special_sections elf_xtensa_special_sections
#define elf_backend_action_discarded elf_xtensa_action_discarded
+#define elf_backend_copy_indirect_symbol elf_xtensa_copy_indirect_symbol
#include "elf32-target.h"
"BFD_RELOC_XTENSA_OP2",
"BFD_RELOC_XTENSA_ASM_EXPAND",
"BFD_RELOC_XTENSA_ASM_SIMPLIFY",
+ "BFD_RELOC_XTENSA_TLSDESC_FN",
+ "BFD_RELOC_XTENSA_TLSDESC_ARG",
+ "BFD_RELOC_XTENSA_TLS_DTPOFF",
+ "BFD_RELOC_XTENSA_TLS_TPOFF",
+ "BFD_RELOC_XTENSA_TLS_FUNC",
+ "BFD_RELOC_XTENSA_TLS_ARG",
+ "BFD_RELOC_XTENSA_TLS_CALL",
"BFD_RELOC_Z80_DISP8",
"BFD_RELOC_Z8K_DISP7",
"BFD_RELOC_Z8K_CALLR",
/* BFD support for handling relocation entries.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
Written by Cygnus Support.
assembler-expanded instructions. This is commonly used
internally by the linker after analysis of a
BFD_RELOC_XTENSA_ASM_EXPAND.
+ENUM
+ BFD_RELOC_XTENSA_TLSDESC_FN
+ENUMX
+ BFD_RELOC_XTENSA_TLSDESC_ARG
+ENUMX
+ BFD_RELOC_XTENSA_TLS_DTPOFF
+ENUMX
+ BFD_RELOC_XTENSA_TLS_TPOFF
+ENUMX
+ BFD_RELOC_XTENSA_TLS_FUNC
+ENUMX
+ BFD_RELOC_XTENSA_TLS_ARG
+ENUMX
+ BFD_RELOC_XTENSA_TLS_CALL
+ENUMDOC
+ Xtensa TLS relocations.
ENUM
BFD_RELOC_Z80_DISP8
+2008-08-20 Bob Wilson <bob.wilson@acm.org>
+
+ * config/tc-xtensa.c (O_tlsfunc, O_tlsarg, O_tlscall): Define.
+ (O_tpoff, O_dtpoff): Define.
+ (suffix_relocs): Add entries for TLS suffixes.
+ (xtensa_elf_cons): Check for invalid use of TLS relocations.
+ (map_operator_to_reloc): Add is_literal parameter and use it to
+ control translating TLS instruction relocations to the corresponding
+ literal relocations.
+ (xg_valid_literal_expression): Allow TLS operators.
+ (xg_build_to_insn): Copy TLS operators from pseudo-instruction
+ operands to generated literals.
+ (xg_assemble_literal): Handle TLS operators. Update call to
+ map_operator_to_reloc.
+ (md_assemble): Handle CALLXn.TLS pseudo-instruction.
+ (md_apply_fix): Handle TLS relocations.
+ (emit_single_op): Handle TLS operators.
+ (convert_frag_immed): Update call to map_operator_to_reloc.
+ (vinsn_to_insnbuf): Emit relocations for TLS-related instructions.
+ * config/xtensa-istack.h (tinsn_struct): Add tls_reloc field.
+ * config/xtensa-relax.c (append_literal_op): Add src_op parameter
+ to initialize the op_data field of the BuildOp.
+ (build_transition): Use it here to record the source operand
+ corresponding to a generated literal.
+ * config/xtensa-relax.h (build_op): Comment op_data use for literals.
+
2008-08-20 H.J. Lu <hongjiu.lu@intel.com>
AVX Programming Reference (August, 2008)
#define O_hi16 O_md2 /* use high 16 bits of symbolic value */
#define O_lo16 O_md3 /* use low 16 bits of symbolic value */
#define O_pcrel O_md4 /* value is a PC-relative offset */
+#define O_tlsfunc O_md5 /* TLS_FUNC/TLSDESC_FN relocation */
+#define O_tlsarg O_md6 /* TLS_ARG/TLSDESC_ARG relocation */
+#define O_tlscall O_md7 /* TLS_CALL relocation */
+#define O_tpoff O_md8 /* TPOFF relocation */
+#define O_dtpoff O_md9 /* DTPOFF relocation */
struct suffix_reloc_map
{
SUFFIX_MAP ("h", BFD_RELOC_HI16, O_hi16),
SUFFIX_MAP ("plt", BFD_RELOC_XTENSA_PLT, O_pltrel),
SUFFIX_MAP ("pcrel", BFD_RELOC_32_PCREL, O_pcrel),
+ SUFFIX_MAP ("tlsfunc", BFD_RELOC_XTENSA_TLS_FUNC, O_tlsfunc),
+ SUFFIX_MAP ("tlsarg", BFD_RELOC_XTENSA_TLS_ARG, O_tlsarg),
+ SUFFIX_MAP ("tlscall", BFD_RELOC_XTENSA_TLS_CALL, O_tlscall),
+ SUFFIX_MAP ("tpoff", BFD_RELOC_XTENSA_TLS_TPOFF, O_tpoff),
+ SUFFIX_MAP ("dtpoff", BFD_RELOC_XTENSA_TLS_DTPOFF, O_dtpoff),
{ (char *) 0, 0, BFD_RELOC_UNUSED, 0 }
};
else if (nbytes != (int) bfd_get_reloc_size (reloc_howto))
as_bad (_("%s relocations do not fit in %d bytes"),
reloc_howto->name, nbytes);
+ else if (reloc == BFD_RELOC_XTENSA_TLS_FUNC
+ || reloc == BFD_RELOC_XTENSA_TLS_ARG
+ || reloc == BFD_RELOC_XTENSA_TLS_CALL)
+ as_bad (_("invalid use of %s relocation"), reloc_howto->name);
else
{
char *p = frag_more ((int) nbytes);
/* Find the matching reloc type. */
static bfd_reloc_code_real_type
-map_operator_to_reloc (unsigned char operator)
+map_operator_to_reloc (unsigned char operator, bfd_boolean is_literal)
{
struct suffix_reloc_map *sfx;
bfd_reloc_code_real_type reloc = BFD_RELOC_UNUSED;
}
}
+ if (is_literal)
+ {
+ if (reloc == BFD_RELOC_XTENSA_TLS_FUNC)
+ return BFD_RELOC_XTENSA_TLSDESC_FN;
+ else if (reloc == BFD_RELOC_XTENSA_TLS_ARG)
+ return BFD_RELOC_XTENSA_TLSDESC_ARG;
+ }
+
if (reloc == BFD_RELOC_UNUSED)
return BFD_RELOC_32;
case O_subtract:
case O_pltrel:
case O_pcrel:
+ case O_tlsfunc:
+ case O_tlsarg:
+ case O_tpoff:
+ case O_dtpoff:
return TRUE;
default:
return FALSE;
case OP_LITERAL:
sym = get_special_literal_symbol ();
set_expr_symbol_offset (&targ->tok[op_num], sym, 0);
+ if (insn->tok[op_data].X_op == O_tlsfunc
+ || insn->tok[op_data].X_op == O_tlsarg)
+ copy_expr (&targ->tls_reloc, &insn->tok[op_data]);
break;
case OP_LABEL:
sym = get_special_label_symbol ();
pcrel = TRUE;
/* fall through */
case O_pltrel:
+ case O_tlsfunc:
+ case O_tlsarg:
+ case O_tpoff:
+ case O_dtpoff:
p = frag_more (litsize);
xtensa_set_frag_assembly_state (frag_now);
- reloc = map_operator_to_reloc (emit_val->X_op);
+ reloc = map_operator_to_reloc (emit_val->X_op, TRUE);
if (emit_val->X_add_symbol)
emit_val->X_op = O_symbol;
else
orig_insn.insn_type = ITYPE_INSN;
orig_insn.ntok = 0;
orig_insn.is_specific_opcode = (has_underbar || !use_transform ());
-
orig_insn.opcode = xtensa_opcode_lookup (isa, opname);
+
+ /* Special case: Check for "CALLXn.TLS" psuedo op. If found, grab its
+ extra argument and set the opcode to "CALLXn". */
+ if (orig_insn.opcode == XTENSA_UNDEFINED
+ && strncasecmp (opname, "callx", 5) == 0)
+ {
+ unsigned long window_size;
+ char *suffix;
+
+ window_size = strtoul (opname + 5, &suffix, 10);
+ if (suffix != opname + 5
+ && (window_size == 0
+ || window_size == 4
+ || window_size == 8
+ || window_size == 12)
+ && strcasecmp (suffix, ".tls") == 0)
+ {
+ switch (window_size)
+ {
+ case 0: orig_insn.opcode = xtensa_callx0_opcode; break;
+ case 4: orig_insn.opcode = xtensa_callx4_opcode; break;
+ case 8: orig_insn.opcode = xtensa_callx8_opcode; break;
+ case 12: orig_insn.opcode = xtensa_callx12_opcode; break;
+ }
+
+ if (num_args != 2)
+ as_bad (_("wrong number of operands for '%s'"), opname);
+ else
+ {
+ bfd_reloc_code_real_type reloc;
+ char *old_input_line_pointer;
+ expressionS *tok = &orig_insn.tls_reloc;
+ segT t;
+
+ old_input_line_pointer = input_line_pointer;
+ input_line_pointer = arg_strings[num_args - 1];
+
+ t = expression (tok);
+ if (tok->X_op == O_symbol
+ && ((reloc = xtensa_elf_suffix (&input_line_pointer, tok))
+ == BFD_RELOC_XTENSA_TLS_CALL))
+ tok->X_op = map_suffix_reloc_to_operator (reloc);
+ else
+ as_bad (_("bad relocation expression for '%s'"), opname);
+
+ input_line_pointer = old_input_line_pointer;
+ num_args -= 1;
+ }
+ }
+ }
+
if (orig_insn.opcode == XTENSA_UNDEFINED)
{
xtensa_format fmt = xtensa_format_lookup (isa, opname);
fixP->fx_no_overflow = 0; /* Use the standard overflow check. */
break;
+ case BFD_RELOC_XTENSA_TLSDESC_FN:
+ case BFD_RELOC_XTENSA_TLSDESC_ARG:
+ case BFD_RELOC_XTENSA_TLS_TPOFF:
+ case BFD_RELOC_XTENSA_TLS_DTPOFF:
+ S_SET_THREAD_LOCAL (fixP->fx_addsy);
+ md_number_to_chars (fixpos, 0, fixP->fx_size);
+ fixP->fx_no_overflow = 0; /* Use the standard overflow check. */
+ break;
+
case BFD_RELOC_XTENSA_SLOT0_OP:
case BFD_RELOC_XTENSA_SLOT1_OP:
case BFD_RELOC_XTENSA_SLOT2_OP:
break;
case BFD_RELOC_XTENSA_ASM_EXPAND:
+ case BFD_RELOC_XTENSA_TLS_FUNC:
+ case BFD_RELOC_XTENSA_TLS_ARG:
+ case BFD_RELOC_XTENSA_TLS_CALL:
case BFD_RELOC_XTENSA_SLOT0_ALT:
case BFD_RELOC_XTENSA_SLOT1_ALT:
case BFD_RELOC_XTENSA_SLOT2_ALT:
|| orig_insn->opcode == xtensa_movi_n_opcode)
&& !cur_vinsn.inside_bundle
&& (orig_insn->tok[1].X_op == O_symbol
- || orig_insn->tok[1].X_op == O_pltrel)
+ || orig_insn->tok[1].X_op == O_pltrel
+ || orig_insn->tok[1].X_op == O_tlsfunc
+ || orig_insn->tok[1].X_op == O_tlsarg
+ || orig_insn->tok[1].X_op == O_tpoff
+ || orig_insn->tok[1].X_op == O_dtpoff)
&& !orig_insn->is_specific_opcode && use_transform ())
xg_assembly_relax (&istack, orig_insn, now_seg, frag_now, 0, 1, 0);
else
/* Add a fixup. */
target_seg = S_GET_SEGMENT (lit_sym);
assert (target_seg);
- reloc_type = map_operator_to_reloc (tinsn->tok[0].X_op);
+ reloc_type = map_operator_to_reloc (tinsn->tok[0].X_op, TRUE);
fix_new_exp_in_seg (target_seg, 0, lit_frag, 0, 4,
&tinsn->tok[0], FALSE, reloc_type);
break;
for (slot = 0; slot < vinsn->num_slots; slot++)
{
TInsn *tinsn = &vinsn->slots[slot];
+ expressionS *tls_reloc = &tinsn->tls_reloc;
bfd_boolean tinsn_has_fixup =
tinsn_to_slotbuf (vinsn->format, slot, tinsn,
vinsn->slotbuf[slot]);
xtensa_format_set_slot (isa, fmt, slot,
insnbuf, vinsn->slotbuf[slot]);
+ if (tls_reloc->X_op != O_illegal)
+ {
+ if (vinsn->num_slots != 1)
+ as_bad (_("TLS relocation not allowed in FLIX bundle"));
+ else if (record_fixup)
+ /* Instructions that generate TLS relocations should always be
+ relaxed in the front-end. If "record_fixup" is set, then this
+ function is being called during back-end relaxation, so flag
+ the unexpected behavior as an error. */
+ as_bad (_("unexpected TLS relocation"));
+ else
+ fix_new (fragP, frag_offset - fragP->fr_literal,
+ xtensa_format_length (isa, fmt),
+ tls_reloc->X_add_symbol, tls_reloc->X_add_number,
+ FALSE, map_operator_to_reloc (tls_reloc->X_op, FALSE));
+ }
if (tinsn_has_fixup)
{
int i;
/* Declarations for stacks of tokenized Xtensa instructions.
- Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
bfd_boolean loc_directive_seen;
struct dwarf2_line_info debug_line;
+ expressionS tls_reloc;
+
/* Filled out by relaxation_requirements: */
enum xtensa_relax_statesE subtype;
int literal_space;
/* Table of relaxations for Xtensa assembly.
- Copyright 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+ Copyright 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
static void
-append_literal_op (BuildInstr *bi, unsigned op1)
+append_literal_op (BuildInstr *bi, unsigned op1, unsigned src_op)
{
BuildOp *b_op = (BuildOp *) xmalloc (sizeof (BuildOp));
b_op->op_num = op1;
b_op->typ = OP_LITERAL;
- b_op->op_data = 0;
+ b_op->op_data = src_op;
b_op->next = NULL;
append_op (bi, b_op);
}
TransitionRule *tr = NULL;
xtensa_opcode opcode;
xtensa_isa isa = xtensa_default_isa;
+ BuildInstr *literal_bi;
opname_map_e *op1;
opname_map_e *op2;
can be used before they are defined. Also there are a number of
special operands (e.g., HI24S). */
+ literal_bi = NULL;
for (r = replace_insns->head; r != NULL; r = r->next)
{
BuildInstr *bi;
bi->typ = INSTR_LITERAL_DEF;
if (operand_count != 1)
as_fatal (_("expected one operand for generated literal"));
+ literal_bi = bi;
}
else if (strcmp (opcode_name, "LABEL") == 0)
{
if (op_is_constant (op))
append_constant_op (bi, op->operand_num, op_get_constant (op));
else if (strcmp (op->operand_name, "%LITERAL") == 0)
- append_literal_op (bi, op->operand_num);
+ {
+ if (! literal_bi || ! literal_bi->ops || literal_bi->ops->next)
+ as_fatal (_("opcode '%s': cannot find literal definition"),
+ opcode_name);
+ append_literal_op (bi, op->operand_num,
+ literal_bi->ops->op_data);
+ }
else if (strcmp (op->operand_name, "%LABEL") == 0)
append_label_op (bi, op->operand_num);
else if (op->operand_name[0] == 'a'
/* Table of relaxations for Xtensa assembly.
- Copyright 2003, 2004, 2007 Free Software Foundation, Inc.
+ Copyright 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
OPERAND: op_data is the field in the
source instruction to take the value from
and encode in the op_num field here.
- LITERAL or LABEL: unused. */
+ LITERAL: op_data is field in the source
+ instruction that is stored in the literal.
+ LABEL: unused. */
BuildOp *next;
};
+2008-08-20 Bob Wilson <bob.wilson@acm.org>
+
+ * xtensa.h (R_XTENSA_TLSDESC_FN, R_XTENSA_TLSDESC_ARG)
+ (R_XTENSA_TLS_DTPOFF, R_XTENSA_TLS_TPOFF, R_XTENSA_TLS_FUNC)
+ (R_XTENSA_TLS_ARG, R_XTENSA_TLS_CALL): New.
+
2008-08-08 Richard Sandiford <rdsandiford@googlemail.com>
Daniel Jacobowitz <dan@codesourcery.com>
Catherine Moore <clm@codesourcery.com>
/* Xtensa ELF support for BFD.
- Copyright 2003, 2004, 2007 Free Software Foundation, Inc.
+ Copyright 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
This file is part of BFD, the Binary File Descriptor library.
RELOC_NUMBER (R_XTENSA_SLOT12_ALT, 47)
RELOC_NUMBER (R_XTENSA_SLOT13_ALT, 48)
RELOC_NUMBER (R_XTENSA_SLOT14_ALT, 49)
+ RELOC_NUMBER (R_XTENSA_TLSDESC_FN, 50)
+ RELOC_NUMBER (R_XTENSA_TLSDESC_ARG, 51)
+ RELOC_NUMBER (R_XTENSA_TLS_DTPOFF, 52)
+ RELOC_NUMBER (R_XTENSA_TLS_TPOFF, 53)
+ RELOC_NUMBER (R_XTENSA_TLS_FUNC, 54)
+ RELOC_NUMBER (R_XTENSA_TLS_ARG, 55)
+ RELOC_NUMBER (R_XTENSA_TLS_CALL, 56)
END_RELOC_NUMBERS (R_XTENSA_max)
/* Processor-specific flags for the ELF header e_flags field. */
--- /dev/null
+#source: tlsbin.s
+#as:
+#ld: -melf32xtensa
+#objdump: -drj.text --start-address=0x400238
+#target: xtensa*-*-linux*
+
+.*: +file format elf32-xtensa-.e
+
+Disassembly of section \.text:
+
+0+400238 <_start>:
+ [0-9a-f]+: [0-9a-f]+[ ]+entry a1, 32
+# GD -> IE because variable is not defined in executable
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 4001ec <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# GD -> IE because variable is not defined in executable where
+# the variable is referenced through IE too
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 4001f4 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# GD -> LE with global variable defined in executable
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 4001fc <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# GD -> LE with local variable defined in executable
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 400204 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# GD -> LE with hidden variable defined in executable
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 40020c <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# LD -> LE
+ [0-9a-f]+: [0-9a-f]+[ ]+nop.*
+ [0-9a-f]+: [0-9a-f]+[ ]+nop.*
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a10
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a12, 400218 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a12, a12, a10
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a13, 40021c <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a13, a13, a10
+# LD -> LE against hidden variables
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a12, 400220 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a12, a12, a10
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a13, 400224 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a13, a13, a10
+#
+# IE against global var
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a2
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a3, 400228 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a3, a3, a2
+# IE -> LE against global var defined in exec
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a4
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a5, 40022c <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a5, a5, a4
+# IE -> LE against local var
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a6
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a7, 400230 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a7, a7, a6
+# IE -> LE against hidden var
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a9, 400234 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a9, a9, a8
+#
+ [0-9a-f]+: [0-9a-f]+[ ]+retw.*
--- /dev/null
+#source: tlsbin.s
+#as:
+#ld: -melf32xtensa
+#readelf: -WSsrl
+#target: xtensa*-*-linux*
+
+There are [0-9]+ section headers, starting at offset 0x[0-9a-f]+:
+
+Section Headers:
+ \[Nr\] Name +Type +Addr +Off +Size +ES Flg Lk Inf Al
+ +\[[ 0-9]+\] +NULL +0+ 0+ 0+ 00 +0 +0 +0
+ +\[[ 0-9]+\] .interp +.*
+ +\[[ 0-9]+\] .hash +.*
+ +\[[ 0-9]+\] .dynsym +.*
+ +\[[ 0-9]+\] .dynstr +.*
+ +\[[ 0-9]+\] .rela.dyn +.*
+ +\[[ 0-9]+\] .text +PROGBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +AX +0 +0 +4
+ +\[[ 0-9]+\] .got.loc +PROGBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +A +0 +0 +4
+ +\[[ 0-9]+\] .tdata +PROGBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +WAT +0 +0 +4
+ +\[[ 0-9]+\] .dynamic +DYNAMIC +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 08 +WA +4 +0 +4
+ +\[[ 0-9]+\] .got +PROGBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +WA +0 +0 +4
+ +\[[ 0-9]+\] .xt.lit +PROGBITS +0+ .*
+ +\[[ 0-9]+\] .xt.prop +PROGBITS +0+ .*
+ +\[[ 0-9]+\] .xtensa.info +NOTE +0+ .*
+ +\[[ 0-9]+\] .shstrtab +.*
+ +\[[ 0-9]+\] .symtab +.*
+ +\[[ 0-9]+\] .strtab +.*
+Key to Flags:
+.*
+.*
+.*
+
+Elf file type is EXEC \(Executable file\)
+Entry point 0x[0-9a-f]+
+There are [0-9]+ program headers, starting at offset [0-9]+
+
+Program Headers:
+ Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align
+ PHDR.*
+ INTERP.*
+.*Requesting program interpreter.*
+ LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x1000
+ LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ DYNAMIC +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW +0x4
+ TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R +0x4
+
+ Section to Segment mapping:
+ Segment Sections...
+ 00 *
+ 01 +.interp *
+ 02 +.interp .hash .dynsym .dynstr .rela.dyn .text .got.loc *
+ 03 +.tdata .dynamic .got *
+ 04 +.dynamic *
+ 05 +.tdata *
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 3 entries:
+ +Offset +Info +Type +Sym\. Value Symbol's Name \+ Addend
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+ +sG1 \+ 0
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+ +sG2 \+ 0
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+ +sG2 \+ 0
+
+Symbol table '\.dynsym' contains [0-9]+ entries:
+ +Num: +Value +Size Type +Bind +Vis +Ndx Name
+ +[0-9]+: 0+ +0 NOTYPE LOCAL DEFAULT UND *
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT UND sG2
+ +[0-9]+: 0+[0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS __bss_start
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT UND sG1
+ +[0-9]+: 0+[0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS _edata
+ +[0-9]+: 0+[0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS _end
+
+Symbol table '\.symtab' contains [0-9]+ entries:
+ +Num: +Value +Size Type +Bind +Vis +Ndx Name
+ +[0-9]+: 0+ +0 NOTYPE LOCAL DEFAULT UND *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +1 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +2 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +3 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +4 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +5 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +6 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +7 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +8 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +9 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +10 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +11 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +12 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +13 *
+ +[0-9]+: [0-9a-f]+ +0 TLS +LOCAL DEFAULT +8 sl1
+ +[0-9]+: [0-9a-f]+ +0 TLS +LOCAL DEFAULT +8 sl2
+ +[0-9]+: [0-9a-f]+ +0 TLS +LOCAL DEFAULT +8 sl3
+ +[0-9]+: [0-9a-f]+ +0 TLS +LOCAL DEFAULT +8 sl4
+ +[0-9]+: [0-9a-f]+ +0 TLS +LOCAL DEFAULT +8 sl5
+ +[0-9]+: [0-9a-f]+ +0 TLS +LOCAL DEFAULT +8 sl6
+ +[0-9]+: [0-9a-f]+ +0 TLS +LOCAL DEFAULT +8 sl7
+ +[0-9]+: [0-9a-f]+ +0 TLS +LOCAL DEFAULT +8 sl8
+ +[0-9]+: 0+ +0 TLS +LOCAL HIDDEN +8 _TLS_MODULE_BASE_
+ +[0-9]+: [0-9a-f]+ +0 OBJECT +LOCAL +HIDDEN +9 _DYNAMIC
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL DEFAULT +8 sg8
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL DEFAULT +8 sg3
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL HIDDEN +8 sh3
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT UND sG2
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL DEFAULT +8 sg4
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL DEFAULT +8 sg5
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL HIDDEN +8 sh7
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL HIDDEN +8 sh8
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL DEFAULT +8 sg1
+ +[0-9]+: [0-9a-f]+ +0 FUNC +GLOBAL DEFAULT +6 _start
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL HIDDEN +8 sh4
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL HIDDEN +8 sh5
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS __bss_start
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL DEFAULT +8 sg2
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT UND sG1
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL HIDDEN +8 sh1
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL DEFAULT +8 sg6
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL DEFAULT +8 sg7
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS _edata
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS _end
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL HIDDEN +8 sh2
+ +[0-9]+: [0-9a-f]+ +0 TLS +GLOBAL HIDDEN +8 sh6
--- /dev/null
+ .section ".tdata", "awT", @progbits
+ .global sg1, sg2, sg3, sg4, sg5, sg6, sg7, sg8
+ .global sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
+ .hidden sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
+ .align 4
+sg1: .long 17
+sg2: .long 18
+sg3: .long 19
+sg4: .long 20
+sg5: .long 21
+sg6: .long 22
+sg7: .long 23
+sg8: .long 24
+sl1: .long 65
+sl2: .long 66
+sl3: .long 67
+sl4: .long 68
+sl5: .long 69
+sl6: .long 70
+sl7: .long 71
+sl8: .long 72
+sh1: .long 157
+sh2: .long 158
+sh3: .long 159
+sh4: .long 160
+sh5: .long 161
+sh6: .long 162
+sh7: .long 163
+sh8: .long 164
+
+ .text
+ .global _start
+ .type _start, @function
+_start:
+ entry sp, 32
+
+ /* GD -> IE because variable is not defined in executable */
+ movi a8, sG1@tlsfunc
+ movi a10, sG1@tlsarg
+ callx8.tls a8, sG1@tlscall
+
+ /* GD -> IE because variable is not defined in executable where
+ the variable is referenced through IE too */
+ movi a8, sG2@tlsfunc
+ movi a10, sG2@tlsarg
+ callx8.tls a8, sG2@tlscall
+
+ /* GD -> LE with global variable defined in executable */
+ movi a8, sg1@tlsfunc
+ movi a10, sg1@tlsarg
+ callx8.tls a8, sg1@tlscall
+
+ /* GD -> LE with local variable defined in executable */
+ movi a8, sl1@tlsfunc
+ movi a10, sl1@tlsarg
+ callx8.tls a8, sl1@tlscall
+
+ /* GD -> LE with hidden variable defined in executable */
+ movi a8, sh1@tlsfunc
+ movi a10, sh1@tlsarg
+ callx8.tls a8, sh1@tlscall
+
+ /* LD -> LE */
+ movi a8, _TLS_MODULE_BASE_@tlsfunc
+ movi a10, _TLS_MODULE_BASE_@tlsarg
+ callx8.tls a8, _TLS_MODULE_BASE_@tlscall
+ movi a12, 1+sl1@dtpoff
+ add a12, a12, a10
+ movi a13, sl2@dtpoff+2
+ add a13, a13, a10
+
+ /* LD -> LE against hidden variables */
+ movi a12, sh1@dtpoff
+ add a12, a12, a10
+ movi a13, 3+sh2@dtpoff
+ add a13, a13, a10
+
+ /* IE against global var */
+ rur a2, THREADPTR
+ movi a3, sG2@tpoff
+ add a3, a3, a2
+
+ /* IE -> LE against global var defined in exec */
+ rur a4, THREADPTR
+ movi a5, sg1@tpoff
+ add a5, a5, a4
+
+ /* IE -> LE against local var */
+ rur a6, THREADPTR
+ movi a7, sl1@tpoff
+ add a7, a7, a6
+
+ /* IE -> LE against hidden var */
+ rur a8, THREADPTR
+ movi a9, sh1@tpoff
+ add a9, a9, a8
+
+ retw
--- /dev/null
+#source: tlsbin.s
+#as:
+#ld: -melf32xtensa
+#objdump: -sj.text --stop-address=0x400238
+#target: xtensa*-*-linux*
+
+.*: +file format elf32-xtensa-.e
+
+Contents of section .text:
+ *[0-9a-f]+ 0+ 0+ 0+ 0+ .*
+ *[0-9a-f]+ 0+ 0*080* 0+ 0*280* .*
+ *[0-9a-f]+ 0+ 0*480* 0+ 0*080* .*
+ *[0-9a-f]+ 0*290* 0*2e0* 0*480* 0*4f0* .*
+ *[0-9a-f]+ 0+ 0*080* 0*280* 0*480* .*
--- /dev/null
+#source: tlsbin.s
+#ld: -melf32xtensa
+#objdump: -sj.tdata
+#target: xtensa*-*-linux*
+
+.*: +file format elf32-xtensa-.e
+
+Contents of section .tdata:
+ *[0-9a-f]+ 0*110* 0*120* 0*130* 0*140* .*
+ *[0-9a-f]+ 0*150* 0*160* 0*170* 0*180* .*
+ *[0-9a-f]+ 0*410* 0*420* 0*430* 0*440* .*
+ *[0-9a-f]+ 0*450* 0*460* 0*470* 0*480* .*
+ *[0-9a-f]+ 0*9d0* 0*9e0* 0*9f0* 0*a00* .*
+ *[0-9a-f]+ 0*a10* 0*a20* 0*a30* 0*a40* .*
--- /dev/null
+ .section ".tdata", "awT", @progbits
+ .global sG1, sG2, sG3, sG4, sG5, sG6, sG7, sG8
+sG1: .long 513
+sG2: .long 514
+sG3: .long 515
+sG4: .long 516
+sG5: .long 517
+sG6: .long 518
+sG7: .long 519
+sG8: .long 520
+
+ .text
+ /* Dummy. */
+ .global __tls_get_addr
+ .type __tls_get_addr, @function
+__tls_get_addr:
+ entry sp, 16
+ retw
--- /dev/null
+#source: tlspic1.s
+#source: tlspic2.s
+#as:
+#ld: -shared -melf32xtensa
+#objdump: -drj.text --start-address=0x350
+#target: xtensa*-*-linux*
+
+.*: +file format elf32-xtensa-.e
+
+Disassembly of section \.text:
+
+0+350 <_start>:
+ [0-9a-f]+: [0-9a-f]+[ ]+entry a1, 32
+# GD
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a8, 2e0 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 2e4 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+callx8 a8
+# GD -> IE because variable is referenced through IE too
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 2ec <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# GD against local variable
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a8, 2f0 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 2f4 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+callx8 a8
+# GD -> IE against local variable referenced through IE too
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 2fc <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# GD against hidden and local variable
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a8, 300 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 304 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+callx8 a8
+# GD -> IE against hidden and local variable referenced through IE too
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 30c <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# GD against hidden but not local variable
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a8, 310 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 314 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+callx8 a8
+# GD -> IE against hidden but not local variable referenced through IE too
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 31c <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
+# LD
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a8, 320 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 324 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+callx8 a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a12, 328 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a12, a12, a10
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a13, 32c <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a13, a13, a10
+# LD against hidden and local variables
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a12, 330 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a12, a12, a10
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a13, 334 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a13, a13, a10
+# LD against hidden but not local variables
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a12, 338 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a12, a12, a10
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a13, 33c <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a13, a13, a10
+# IE against global var
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a2
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a3, 340 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a3, a3, a2
+# IE against local var
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a4
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a5, 344 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a5, a5, a4
+# IE against hidden and local var
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a6
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a7, 348 <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a7, a7, a6
+# IE against hidden but not local var
+ [0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
+ [0-9a-f]+: [0-9a-f]+[ ]+l32r a9, 34c <.*>
+ [0-9a-f]+: [0-9a-f]+[ ]+add.* a9, a9, a8
+#
+ [0-9a-f]+: [0-9a-f]+[ ]+retw.*
--- /dev/null
+#source: tlspic1.s
+#source: tlspic2.s
+#as:
+#ld: -shared -melf32xtensa
+#readelf: -WSsrl
+#target: xtensa*-*-linux*
+
+There are [0-9]+ section headers, starting at offset 0x[0-9a-f]+:
+
+Section Headers:
+ \[Nr\] Name +Type +Addr +Off +Size +ES Flg Lk Inf Al
+ +\[[ 0-9]+\] +NULL +0+ 0+ 0+ 00 +0 +0 +0
+ +\[[ 0-9]+\] .hash +.*
+ +\[[ 0-9]+\] .dynsym +.*
+ +\[[ 0-9]+\] .dynstr +.*
+ +\[[ 0-9]+\] .rela.dyn +.*
+ +\[[ 0-9]+\] .text +PROGBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +AX +0 +0 +4
+ +\[[ 0-9]+\] .got.loc +PROGBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +A +0 +0 +4
+ +\[[ 0-9]+\] .tdata +PROGBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +WAT +0 +0 +4
+ +\[[ 0-9]+\] .tbss +NOBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +WAT +0 +0 +4
+ +\[[ 0-9]+\] .dynamic +DYNAMIC +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 08 +WA +3 +0 +4
+ +\[[ 0-9]+\] .got +PROGBITS +[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 +WA +0 +0 +4
+ +\[[ 0-9]+\] .xt.lit +PROGBITS +0+ .*
+ +\[[ 0-9]+\] .xt.prop +PROGBITS +0+ .*
+ +\[[ 0-9]+\] .xtensa.info +NOTE +0+ .*
+ +\[[ 0-9]+\] .shstrtab +.*
+ +\[[ 0-9]+\] .symtab +.*
+ +\[[ 0-9]+\] .strtab +.*
+Key to Flags:
+.*
+.*
+.*
+
+Elf file type is DYN \(Shared object file\)
+Entry point 0x[0-9a-f]+
+There are [0-9]+ program headers, starting at offset [0-9]+
+
+Program Headers:
+ Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align
+ LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x1000
+ LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ DYNAMIC +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW +0x4
+ TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R +0x4
+
+ Section to Segment mapping:
+ Segment Sections...
+ 00 +.hash .dynsym .dynstr .rela.dyn .text .got.loc *
+ 01 +.tdata .dynamic .got *
+ 02 +.dynamic *
+ 03 +.tdata .tbss *
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 18 entries:
+ +Offset +Info +Type +Sym\. Value Symbol's Name \+ Addend
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_FN +0+ +sg1 \+ 0
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_ARG +0+ +sg1 \+ 0
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+4 +sg2 \+ 0
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+4 +sg2 \+ 0
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_FN +0+20
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_ARG +0+20
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+24
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_FN +0+40
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_ARG +0+40
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+44
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_FN +0+60
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_ARG +0+60
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+64
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_FN +0+
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLSDESC_ARG +0+
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+24
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+44
+[0-9a-f]+ [0-9a-f]+ R_XTENSA_TLS_TPOFF +0+64
+
+Symbol table '\.dynsym' contains [0-9]+ entries:
+ +Num: +Value +Size Type +Bind +Vis +Ndx Name
+ +[0-9]+: 0+ +0 NOTYPE LOCAL DEFAULT UND *
+ +[0-9]+: 0+1c +0 TLS +GLOBAL DEFAULT +7 sg8
+ +[0-9]+: 0+8 +0 TLS +GLOBAL DEFAULT +7 sg3
+ +[0-9]+: 0+c +0 TLS +GLOBAL DEFAULT +7 sg4
+ +[0-9]+: 0+10 +0 TLS +GLOBAL DEFAULT +7 sg5
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT +7 sg1
+ +[0-9]+: 0+350 +0 FUNC +GLOBAL DEFAULT +5 _start
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS __bss_start
+ +[0-9]+: 0+4 +0 TLS +GLOBAL DEFAULT +7 sg2
+ +[0-9]+: 0+14 +0 TLS +GLOBAL DEFAULT +7 sg6
+ +[0-9]+: 0+18 +0 TLS +GLOBAL DEFAULT +7 sg7
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS _edata
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS _end
+
+Symbol table '\.symtab' contains [0-9]+ entries:
+ +Num: +Value +Size Type +Bind +Vis +Ndx Name
+ +[0-9]+: 0+ +0 NOTYPE LOCAL DEFAULT UND *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +1 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +2 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +3 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +4 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +5 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +6 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +7 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +8 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +9 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +10 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +11 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +12 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL DEFAULT +13 *
+ +[0-9]+: 0+20 +0 TLS +LOCAL DEFAULT +7 sl1
+ +[0-9]+: 0+24 +0 TLS +LOCAL DEFAULT +7 sl2
+ +[0-9]+: 0+28 +0 TLS +LOCAL DEFAULT +7 sl3
+ +[0-9]+: 0+2c +0 TLS +LOCAL DEFAULT +7 sl4
+ +[0-9]+: 0+30 +0 TLS +LOCAL DEFAULT +7 sl5
+ +[0-9]+: 0+34 +0 TLS +LOCAL DEFAULT +7 sl6
+ +[0-9]+: 0+38 +0 TLS +LOCAL DEFAULT +7 sl7
+ +[0-9]+: 0+3c +0 TLS +LOCAL DEFAULT +7 sl8
+ +[0-9]+: 0+60 +0 TLS +LOCAL HIDDEN +8 sH1
+ +[0-9]+: 0+ +0 TLS +LOCAL HIDDEN +7 _TLS_MODULE_BASE_
+ +[0-9]+: 0+144c +0 OBJECT LOCAL HIDDEN ABS _DYNAMIC
+ +[0-9]+: 0+48 +0 TLS +LOCAL HIDDEN +7 sh3
+ +[0-9]+: 0+64 +0 TLS +LOCAL HIDDEN +8 sH2
+ +[0-9]+: 0+78 +0 TLS +LOCAL HIDDEN +8 sH7
+ +[0-9]+: 0+58 +0 TLS +LOCAL HIDDEN +7 sh7
+ +[0-9]+: 0+5c +0 TLS +LOCAL HIDDEN +7 sh8
+ +[0-9]+: 0+6c +0 TLS +LOCAL HIDDEN +8 sH4
+ +[0-9]+: 0+4c +0 TLS +LOCAL HIDDEN +7 sh4
+ +[0-9]+: 0+68 +0 TLS +LOCAL HIDDEN +8 sH3
+ +[0-9]+: 0+50 +0 TLS +LOCAL HIDDEN +7 sh5
+ +[0-9]+: 0+70 +0 TLS +LOCAL HIDDEN +8 sH5
+ +[0-9]+: 0+74 +0 TLS +LOCAL HIDDEN +8 sH6
+ +[0-9]+: 0+7c +0 TLS +LOCAL HIDDEN +8 sH8
+ +[0-9]+: 0+40 +0 TLS +LOCAL HIDDEN +7 sh1
+ +[0-9]+: 0+44 +0 TLS +LOCAL HIDDEN +7 sh2
+ +[0-9]+: 0+54 +0 TLS +LOCAL HIDDEN +7 sh6
+ +[0-9]+: 0+1c +0 TLS +GLOBAL DEFAULT +7 sg8
+ +[0-9]+: 0+8 +0 TLS +GLOBAL DEFAULT +7 sg3
+ +[0-9]+: 0+c +0 TLS +GLOBAL DEFAULT +7 sg4
+ +[0-9]+: 0+10 +0 TLS +GLOBAL DEFAULT +7 sg5
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT +7 sg1
+ +[0-9]+: 0+350 +0 FUNC +GLOBAL DEFAULT +5 _start
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS __bss_start
+ +[0-9]+: 0+4 +0 TLS +GLOBAL DEFAULT +7 sg2
+ +[0-9]+: 0+14 +0 TLS +GLOBAL DEFAULT +7 sg6
+ +[0-9]+: 0+18 +0 TLS +GLOBAL DEFAULT +7 sg7
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS _edata
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE GLOBAL DEFAULT ABS _end
--- /dev/null
+#source: tlspic1.s
+#source: tlspic2.s
+#as:
+#ld: -shared -melf32xtensa
+#objdump: -sj.text --stop-address=0x350
+#target: xtensa*-*-linux*
+
+.*: +file format elf32-xtensa-.e
+
+Contents of section .text:
+ 0+2e0 0+ 0+ 0+ 0+ .*
+ 0+2f0 0+ 0+ 0+ 0+ .*
+ 0+300 0+ 0+ 0+ 0+ .*
+ 0+310 0+ 0+ 0+ 0+ .*
+ 0+320 0+ 0+ 0*200* 0*260* .*
+ 0+330 0*400* 0*470* 0*600* 0*650* .*
+ 0+340 0+ 0+ 0+ 0+ .*
--- /dev/null
+#source: tlspic1.s
+#source: tlspic2.s
+#as:
+#ld: -shared -melf32xtensa
+#objdump: -sj.tdata
+#target: xtensa*-*-linux*
+
+.*: +file format elf32-xtensa-.e
+
+Contents of section .tdata:
+ *[0-9a-f]+ 0*110* 0*120* 0*130* 0*140* .*
+ *[0-9a-f]+ 0*150* 0*160* 0*170* 0*180* .*
+ *[0-9a-f]+ 0*410* 0*420* 0*430* 0*440* .*
+ *[0-9a-f]+ 0*450* 0*460* 0*470* 0*480* .*
+ *[0-9a-f]+ 0*9d0* 0*9e0* 0*9f0* 0*a00* .*
+ *[0-9a-f]+ 0*a10* 0*a20* 0*a30* 0*a40* .*
--- /dev/null
+ .section ".tdata", "awT", @progbits
+ .global sg1, sg2, sg3, sg4, sg5, sg6, sg7, sg8
+ .global sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
+ .hidden sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
+ .align 4
+sg1: .long 17
+sg2: .long 18
+sg3: .long 19
+sg4: .long 20
+sg5: .long 21
+sg6: .long 22
+sg7: .long 23
+sg8: .long 24
+sl1: .long 65
+sl2: .long 66
+sl3: .long 67
+sl4: .long 68
+sl5: .long 69
+sl6: .long 70
+sl7: .long 71
+sl8: .long 72
+sh1: .long 157
+sh2: .long 158
+sh3: .long 159
+sh4: .long 160
+sh5: .long 161
+sh6: .long 162
+sh7: .long 163
+sh8: .long 164
+
+ .text
+ .global _start
+ .type _start, @function
+_start:
+ entry sp, 32
+
+ /* GD */
+ movi a8, sg1@tlsfunc
+ movi a10, sg1@tlsarg
+ callx8.tls a8, sg1@tlscall
+
+ /* GD -> IE because variable is referenced through IE too */
+ movi a8, sg2@tlsfunc
+ movi a10, sg2@tlsarg
+ callx8.tls a8, sg2@tlscall
+
+ /* GD against local variable */
+ movi a8, sl1@tlsfunc
+ movi a10, sl1@tlsarg
+ callx8.tls a8, sl1@tlscall
+
+ /* GD -> IE against local variable referenced through IE too */
+ movi a8, sl2@tlsfunc
+ movi a10, sl2@tlsarg
+ callx8.tls a8, sl2@tlscall
+
+ /* GD against hidden and local variable */
+ movi a8, sh1@tlsfunc
+ movi a10, sh1@tlsarg
+ callx8.tls a8, sh1@tlscall
+
+ /* GD -> IE against hidden and local variable referenced through
+ IE too */
+ movi a8, sh2@tlsfunc
+ movi a10, sh2@tlsarg
+ callx8.tls a8, sh2@tlscall
+
+ /* GD against hidden but not local variable */
+ movi a8, sH1@tlsfunc
+ movi a10, sH1@tlsarg
+ callx8.tls a8, sH1@tlscall
+
+ /* GD -> IE against hidden but not local variable referenced through
+ IE too */
+ movi a8, sH2@tlsfunc
+ movi a10, sH2@tlsarg
+ callx8.tls a8, sH2@tlscall
+
+ /* LD */
+ movi a8, _TLS_MODULE_BASE_@tlsfunc
+ movi a10, _TLS_MODULE_BASE_@tlsarg
+ callx8.tls a8, _TLS_MODULE_BASE_@tlscall
+ movi a12, sl1@dtpoff
+ add a12, a12, a10
+ movi a13, 2+sl2@dtpoff
+ add a13, a13, a10
+
+ /* LD against hidden and local variables */
+ movi a12, sh1@dtpoff
+ add a12, a12, a10
+ movi a13, sh2@dtpoff+3
+ add a13, a13, a10
+
+ /* LD against hidden but not local variables */
+ movi a12, sH1@dtpoff
+ add a12, a12, a10
+ movi a13, sH2@dtpoff+1
+ add a13, a13, a10
+
+ /* IE against global var */
+ rur a2, THREADPTR
+ movi a3, sg2@tpoff
+ add a3, a3, a2
+
+ /* IE against local var */
+ rur a4, THREADPTR
+ movi a5, sl2@tpoff
+ add a5, a5, a4
+
+ /* IE against hidden and local var */
+ rur a6, THREADPTR
+ movi a7, sh2@tpoff
+ add a7, a7, a6
+
+ /* IE against hidden but not local var */
+ rur a8, THREADPTR
+ movi a9, sH2@tpoff
+ add a9, a9, a8
+
+ retw
--- /dev/null
+ .section ".tbss", "awT", @nobits
+ .global sH1, sH2, sH3, sH4, sH5, sH6, sH7, sH8
+ .hidden sH1, sH2, sH3, sH4, sH5, sH6, sH7, sH8
+ .align 4
+sH1: .space 4
+sH2: .space 4
+sH3: .space 4
+sH4: .space 4
+sH5: .space 4
+sH6: .space 4
+sH7: .space 4
+sH8: .space 4
--- /dev/null
+# Expect script for ld-xtensa tests
+# Copyright (C) 2008 Free Software Foundation
+#
+# This file is part of the GNU Binutils.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+#
+
+if { !([istarget "xtensa*-*-linux*"]) } {
+ return
+}
+
+# List contains test-items with 3 items followed by 2 lists:
+# 0:name 1:ld options 2:assembler options
+# 3:filenames of assembler files 4: action and options. 5: name of output file
+
+# Actions:
+# objdump: Apply objdump options on result. Compare with regex (last arg).
+# nm: Apply nm options on result. Compare with regex (last arg).
+# readelf: Apply readelf options on result. Compare with regex (last arg).
+
+set xtensatests {
+ {"TLS -shared transitions"
+ "-shared -melf32xtensa" "" {tlspic1.s tlspic2.s}
+ {{readelf -WSsrl tlspic.rd}
+ {objdump "-drj.text --start-address=0x350" tlspic.dd}
+ {objdump "-sj.text --stop-address=0x350" tlspic.sd}
+ {objdump -sj.tdata tlspic.td}}
+ "libtlspic.so"}
+ {"Helper shared library" "-shared -melf32xtensa"
+ "" {tlslib.s} {} "libtlslib.so"}
+ {"TLS exec transitions"
+ "-melf32xtensa tmpdir/libtlslib.so" "" {tlsbin.s}
+ {{readelf -WSsrl tlsbin.rd}
+ {objdump "-drj.text --start-address=0x400238" tlsbin.dd}
+ {objdump "-sj.text --stop-address=0x400238" tlsbin.sd}
+ {objdump -sj.tdata tlsbin.td}}
+ "tlsbin"}
+}
+
+run_ld_link_tests $xtensatests
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