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Handle relocation against protected function for -Bsymbolic 

bfd/

2012-03-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/13880
	* elf32-i386.c (elf_i386_relocate_section): Don't issue an error
	for R_386_GOTOFF relocation against protected function if
	SYMBOLIC_BIND is true.

	* elf64-x86-64.c (elf_x86_64_relocate_section): Don't issue an
	error for R_X86_64_GOTOFF64 relocation against protected function
	when building executable or SYMBOLIC_BIND is true.

ld/testsuite/

2012-03-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/13880
	* ld-i386/i386.exp: Run protected4 and protected5.
	* ld-x86-64/x86-64.exp: Likewise.

	* ld-i386/protected4.d: New.
	* ld-i386/protected4.s: Likewise.
	* ld-i386/protected5.d: Likewise.
	* ld-i386/protected5.s: Likewise.
	* ld-x86-64/protected4.d: Likewise.
	* ld-x86-64/protected4.s: Likewise.
	* ld-x86-64/protected5.d: Likewise.
	* ld-x86-64/protected5.s: Likewise.
This commit is contained in:
H.J. Lu 2012-03-20 18:16:38 +00:00
parent e278ad5be6
commit bdb892b995
14 changed files with 101 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
bfd/ChangeLog
View File

@ -1,3 +1,14 @@
2012-03-20 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13880
* elf32-i386.c (elf_i386_relocate_section): Don't issue an error
for R_386_GOTOFF relocation against protected function if
SYMBOLIC_BIND is true.
* elf64-x86-64.c (elf_x86_64_relocate_section): Don't issue an
error for R_X86_64_GOTOFF64 relocation against protected function
when building executable or SYMBOLIC_BIND is true.
2012-03-16 Roland McGrath <mcgrathr@google.com>
* config.bfd: Handle x86_64-*-nacl*.

1
bfd/elf32-i386.c
View File

@ -3503,6 +3503,7 @@ elf_i386_relocate_section (bfd *output_bfd,
return FALSE;
}
else if (!info->executable
&& !SYMBOLIC_BIND (info, h)
&& h->type == STT_FUNC
&& ELF_ST_VISIBILITY (h->other) == STV_PROTECTED)
{

3
bfd/elf64-x86-64.c
View File

@ -3464,8 +3464,9 @@ elf_x86_64_relocate_section (bfd *output_bfd,
/* Check to make sure it isn't a protected function symbol
for shared library since it may not be local when used
as function address. */
if (info->shared
if (!info->executable
&& h
&& !SYMBOLIC_BIND (info, h)
&& h->def_regular
&& h->type == STT_FUNC
&& ELF_ST_VISIBILITY (h->other) == STV_PROTECTED)

15
ld/testsuite/ChangeLog
View File

@ -1,3 +1,18 @@
2012-03-20 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13880
* ld-i386/i386.exp: Run protected4 and protected5.
* ld-x86-64/x86-64.exp: Likewise.
* ld-i386/protected4.d: New.
* ld-i386/protected4.s: Likewise.
* ld-i386/protected5.d: Likewise.
* ld-i386/protected5.s: Likewise.
* ld-x86-64/protected4.d: Likewise.
* ld-x86-64/protected4.s: Likewise.
* ld-x86-64/protected5.d: Likewise.
* ld-x86-64/protected5.s: Likewise.
2012-03-19 Andreas Schwab <schwab@linux-m68k.org>
* ld-m68k/m68k.exp ("TLS indirect symbol use"): Pass

2
ld/testsuite/ld-i386/i386.exp
View File

@ -194,6 +194,8 @@ run_dump_test "hidden3"
run_dump_test "protected1"
run_dump_test "protected2"
run_dump_test "protected3"
run_dump_test "protected4"
run_dump_test "protected5"
run_dump_test "tlspie1"
run_dump_test "tlspie2"
run_dump_test "nogot1"

5
ld/testsuite/ld-i386/protected4.d Normal file
View File

@ -0,0 +1,5 @@
#as: --32
#ld: -shared -Bsymbolic -melf_i386
#readelf: -r
There are no relocations in this file.

12
ld/testsuite/ld-i386/protected4.s Normal file
View File

@ -0,0 +1,12 @@
.text
.protected foo
.globl foo
.type foo, @function
foo:
ret
.size foo, .-foo
.globl bar
.type bar, @function
bar:
movl foo@GOTOFF(%ecx), %eax
.size bar, .-bar

5
ld/testsuite/ld-i386/protected5.d Normal file
View File

@ -0,0 +1,5 @@
#as: --32
#ld: -pie -melf_i386
#readelf: -r
There are no relocations in this file.

12
ld/testsuite/ld-i386/protected5.s Normal file
View File

@ -0,0 +1,12 @@
.text
.protected foo
.globl foo
.type foo, @function
foo:
ret
.size foo, .-foo
.globl _start
.type _start, @function
_start:
movl foo@GOTOFF(%ecx), %eax
.size _start, .-_start

5
ld/testsuite/ld-x86-64/protected4.d Normal file
View File

@ -0,0 +1,5 @@
#as: --64
#ld: -shared -Bsymbolic -melf_x86_64
#readelf: -r
There are no relocations in this file.

12
ld/testsuite/ld-x86-64/protected4.s Normal file
View File

@ -0,0 +1,12 @@
.text
.protected foo
.globl foo
.type foo, @function
foo:
ret
.size foo, .-foo
.globl bar
.type bar, @function
bar:
movabsq $foo@GOTOFF, %rax
.size bar, .-bar

5
ld/testsuite/ld-x86-64/protected5.d Normal file
View File

@ -0,0 +1,5 @@
#as: --64
#ld: -pie -melf_x86_64
#readelf: -r
There are no relocations in this file.

12
ld/testsuite/ld-x86-64/protected5.s Normal file
View File

@ -0,0 +1,12 @@
.text
.protected foo
.globl foo
.type foo, @function
foo:
ret
.size foo, .-foo
.globl _start
.type _start, @function
_start:
movabsq $foo@GOTOFF, %rax
.size _start, .-_start

2
ld/testsuite/ld-x86-64/x86-64.exp
View File

@ -158,6 +158,8 @@ run_dump_test "protected2"
run_dump_test "protected2-l1om"
run_dump_test "protected3"
run_dump_test "protected3-l1om"
run_dump_test "protected4"
run_dump_test "protected5"
run_dump_test "tlsle1"
run_dump_test "tlspie1"
run_dump_test "unique1"