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[BFD][AARCH64]Emit single AARCH64_MAP_INSN symbol for the whole plt.

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bfd/

2015-10-01  Renlin Li  <renlin.li@arm.com>

	* elfnn-aarch64.c (elfNN_aarch64_output_plt_map): Remove.
	(elfNN_aarch64_output_arch_local_syms): Emit AARCH64_MAP_INSN once.

ld/testsuite/

2015-10-01  Renlin Li  <renlin.li@arm.com>

	* ld-aarch64/plt_mapping_symbol.d: New.
	* ld-aarch64/plt_mapping_symbol.s: New.
	* ld-aarch64/aarch64-elf.exp: Run the new test.
This commit is contained in:
Renlin Li
2015-10-01 14:12:37 +01:00
parent 0e1e4a7512
commit 73524045d3
6 changed files with 30 additions and 35 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2015-10-01 Renlin Li <renlin.li@arm.com>
* elfnn-aarch64.c (elfNN_aarch64_output_plt_map): Remove.
(elfNN_aarch64_output_arch_local_syms): Emit AARCH64_MAP_INSN once.
2015-10-01 Kaz Kojima <kkojima@rr.iij4u.or.jp> 2015-10-01 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* config.bfd (targ_selvecs): Remove sh_elf32_vec and * config.bfd (targ_selvecs): Remove sh_elf32_vec and

36
bfd/elfnn-aarch64.c
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@ -7310,38 +7310,6 @@ elfNN_aarch64_output_map_sym (output_arch_syminfo *osi,
return osi->func (osi->finfo, names[type], &sym, osi->sec, NULL) == 1; return osi->func (osi->finfo, names[type], &sym, osi->sec, NULL) == 1;
} }
/* Output mapping symbols for PLT entries associated with H. */
static bfd_boolean
elfNN_aarch64_output_plt_map (struct elf_link_hash_entry *h, void *inf)
{
output_arch_syminfo *osi = (output_arch_syminfo *) inf;
bfd_vma addr;
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
if (h->root.type == bfd_link_hash_warning)
/* When warning symbols are created, they **replace** the "real"
entry in the hash table, thus we never get to see the real
symbol in a hash traversal. So look at it now. */
h = (struct elf_link_hash_entry *) h->root.u.i.link;
if (h->plt.offset == (bfd_vma) - 1)
return TRUE;
addr = h->plt.offset;
if (addr == 32)
{
if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr))
return FALSE;
}
return TRUE;
}
/* Output a single local symbol for a generated stub. */ /* Output a single local symbol for a generated stub. */
static bfd_boolean static bfd_boolean
@ -7474,13 +7442,11 @@ elfNN_aarch64_output_arch_local_syms (bfd *output_bfd,
if (!htab->root.splt || htab->root.splt->size == 0) if (!htab->root.splt || htab->root.splt->size == 0)
return TRUE; return TRUE;
/* For now live without mapping symbols for the plt. */
osi.sec_shndx = _bfd_elf_section_from_bfd_section osi.sec_shndx = _bfd_elf_section_from_bfd_section
(output_bfd, htab->root.splt->output_section); (output_bfd, htab->root.splt->output_section);
osi.sec = htab->root.splt; osi.sec = htab->root.splt;
elf_link_hash_traverse (&htab->root, elfNN_aarch64_output_plt_map, elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0);
(void *) &osi);
return TRUE; return TRUE;

6
ld/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2015-10-01 Renlin Li <renlin.li@arm.com>
* ld-aarch64/aarch64-elf.exp: Run the new test.
* ld-aarch64/plt_mapping_symbol.d: New.
* ld-aarch64/plt_mapping_symbol.s: New.
2015-10-01 Alan Modra <amodra@gmail.com> 2015-10-01 Alan Modra <amodra@gmail.com>
* ld-x86-64/pr19013-x32.d: Update. * ld-x86-64/pr19013-x32.d: Update.

2
ld/testsuite/ld-aarch64/aarch64-elf.exp
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@ -254,6 +254,8 @@ run_dump_test "relocs-1027-symbolic-func"
run_dump_test "dt_textrel" run_dump_test "dt_textrel"
run_dump_test "plt_mapping_symbol"
set aarch64elflinktests { set aarch64elflinktests {
{"ld-aarch64/so with global symbol" "-shared" "" "" {copy-reloc-so.s} {"ld-aarch64/so with global symbol" "-shared" "" "" {copy-reloc-so.s}
{} "copy-reloc-so.so"} {} "copy-reloc-so.so"}

10
ld/testsuite/ld-aarch64/plt_mapping_symbol.d Normal file
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@ -0,0 +1,10 @@
#source: plt_mapping_symbol.s
#ld: -shared -T relocs.ld -e0
#objdump: --syms --special-syms
#name: AArch64 mapping symbol for plt section test.
#...
SYMBOL TABLE:
#...
[0]+10010 l .plt 0[0]+00 \$x
#...

6
ld/testsuite/ld-aarch64/plt_mapping_symbol.s Normal file
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@ -0,0 +1,6 @@
.text
test:
bl __tls_get_addr
nop
.xword 0xffee