* elfxx-mips.c (mips_elf_link_hash_table): Add computed_got_sizes.
	(mips_elf_record_global_got_symbol): Increment local_gotno for
	each forced-local symbol.
	(_bfd_mips_elf_check_relocs): Pass forced-local call symbols to
	mips_elf_record_global_got_symbol for VxWorks too.
	(_bfd_mips_elf_always_size_sections): Set computed_got_sizes
	to true after computing the GOT size.
	(_bfd_mips_elf_hide_symbol): Increase local_gotno whenever
	got.offset == 1.  Only adjust global_gotno if computed_got_sizes.
	For VxWorks, add a local entry when hiding a symbol that needs a
	plt but has not been marked as needing a global got entry.
	(_bfd_mips_elf_link_hash_table_create): Set computed_got_sizes to
	false.

ld/testsuite/
	* ld-mips-elf/vxworks-forced-local-1.d,
	* ld-mips-elf/vxworks-forced-local-1.s,
	* ld-mips-elf/vxworks-forced-local-1.ver: New test.
	* ld-mips-elf/mips-elf.exp: Run it.
	* ld-mips-elf/tlsdyn-o32-2.d: Adjust for removal of unnecessary
	local GOT entry.
	* ld-mips-elf/tlsdyn-o32-2.got: Likewise.
	* ld-mips-elf/tlsdyn-o32-3.d: Likewise.
	* ld-mips-elf/tlsdyn-o32-3.got: Likewise.
	* ld-mips-elf/vxworks1-lib.dd: Likewise.
	* ld-mips-elf/vxworks1-lib.rd: Likewise.
This commit is contained in:
Richard Sandiford
2007-08-13 21:16:39 +00:00
parent 2cc176786d
commit 8275b357ad
13 changed files with 148 additions and 72 deletions

View File

@@ -323,6 +323,8 @@ struct mips_elf_link_hash_table
bfd_vma rld_value;
/* This is set if we see any mips16 stub sections. */
bfd_boolean mips16_stubs_seen;
/* True if we've computed the size of the GOT. */
bfd_boolean computed_got_sizes;
/* True if we're generating code for VxWorks. */
bfd_boolean is_vxworks;
/* True if we already reported the small-data section overflow. */
@@ -2691,7 +2693,7 @@ mips_elf_create_local_got_entry (bfd *abfd, struct bfd_link_info *info,
memcpy (*loc, &entry, sizeof entry);
if (g->assigned_gotno >= g->local_gotno)
if (g->assigned_gotno > g->local_gotno)
{
(*loc)->gotidx = -1;
/* We didn't allocate enough space in the GOT. */
@@ -2876,11 +2878,15 @@ mips_elf_record_global_got_symbol (struct elf_link_hash_entry *h,
if (h->got.offset != MINUS_ONE)
return TRUE;
/* By setting this to a value other than -1, we are indicating that
there needs to be a GOT entry for H. Avoid using zero, as the
generic ELF copy_indirect_symbol tests for <= 0. */
if (tls_flag == 0)
h->got.offset = 1;
{
/* By setting this to a value other than -1, we are indicating that
there needs to be a GOT entry for H. Avoid using zero, as the
generic ELF copy_indirect_symbol tests for <= 0. */
h->got.offset = 1;
if (h->forced_local)
g->local_gotno++;
}
return TRUE;
}
@@ -6528,7 +6534,7 @@ _bfd_mips_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
/* VxWorks call relocations point the function's .got.plt
entry, which will be allocated by adjust_dynamic_symbol.
Otherwise, this symbol requires a global GOT entry. */
if (!htab->is_vxworks
if ((!htab->is_vxworks || h->forced_local)
&& !mips_elf_record_global_got_symbol (h, abfd, info, g, 0))
return FALSE;
@@ -7312,6 +7318,7 @@ _bfd_mips_elf_always_size_sections (bfd *output_bfd,
g->tls_assigned_gotno = g->global_gotno + g->local_gotno;
htab_traverse (g->got_entries, mips_elf_initialize_tls_index, g);
}
htab->computed_got_sizes = TRUE;
return TRUE;
}
@@ -9671,6 +9678,7 @@ _bfd_mips_elf_hide_symbol (struct bfd_link_info *info,
asection *got;
struct mips_got_info *g;
struct mips_elf_link_hash_entry *h;
struct mips_elf_link_hash_table *htab;
h = (struct mips_elf_link_hash_entry *) entry;
if (h->forced_local)
@@ -9678,6 +9686,7 @@ _bfd_mips_elf_hide_symbol (struct bfd_link_info *info,
h->forced_local = force_local;
dynobj = elf_hash_table (info)->dynobj;
htab = mips_elf_hash_table (info);
if (dynobj != NULL && force_local && h->root.type != STT_TLS
&& (got = mips_elf_got_section (dynobj, TRUE)) != NULL
&& (g = mips_elf_section_data (got)->u.got_info) != NULL)
@@ -9715,20 +9724,30 @@ _bfd_mips_elf_hide_symbol (struct bfd_link_info *info,
gg->assigned_gotno--;
}
}
else if (g->global_gotno == 0 && g->global_gotsym == NULL)
/* If we haven't got through GOT allocation yet, just bump up the
number of local entries, as this symbol won't be counted as
global. */
g->local_gotno++;
else if (h->root.got.offset == 1)
{
/* If we're past non-multi-GOT allocation and this symbol had
been marked for a global got entry, give it a local entry
instead. */
BFD_ASSERT (g->global_gotno > 0);
/* check_relocs didn't know that this symbol would be
forced-local, so add an extra local got entry. */
g->local_gotno++;
g->global_gotno--;
if (htab->computed_got_sizes)
{
/* We'll have treated this symbol as global rather
than local. */
BFD_ASSERT (g->global_gotno > 0);
g->global_gotno--;
}
}
else if (htab->is_vxworks && h->root.needs_plt)
{
/* check_relocs didn't know that this symbol would be
forced-local, so add an extra local got entry. */
g->local_gotno++;
if (htab->computed_got_sizes)
/* The symbol is only used in call relocations, so we'll
have assumed it only needs a .got.plt entry. Increase
the size of .got accordingly. */
got->size += MIPS_ELF_GOT_SIZE (dynobj);
}
}
_bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
@@ -10189,6 +10208,7 @@ _bfd_mips_elf_link_hash_table_create (bfd *abfd)
ret->use_rld_obj_head = FALSE;
ret->rld_value = 0;
ret->mips16_stubs_seen = FALSE;
ret->computed_got_sizes = FALSE;
ret->is_vxworks = FALSE;
ret->small_data_overflow_reported = FALSE;
ret->srelbss = NULL;