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MIPS, SPARC: fix wrong vfork aliases in libpthread.so

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With recent binutils versions the GNU libc fails to build on at least
MISP and SPARC, with this kind of error:

  /home/aurel32/glibc/glibc-build/nptl/libpthread.so:(*IND*+0x0): multiple definition of `vfork@GLIBC_2.0'
  /home/aurel32/glibc/glibc-build/nptl/libpthread.so::(.text+0xee50): first defined here

It appears that on these architectures pt-vfork.S includes vfork.S
(through the alpha version of pt-vfork.S) and that the __vfork aliases
are not conditionalized on IS_IN (libc) like on other architectures.
Therefore the aliases are also wrongly included in libpthread.so.

Fix this by properly conditionalizing the aliases like on other
architectures.

Changelog:
	* sysdeps/unix/sysv/linux/mips/vfork.S (__vfork): Conditionalize
	hidden_def, weak_alias and strong_alias on [IS_IN (libc)].
	* sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Likewise.
This commit is contained in:
Aurelien Jarno 2016-06-18 19:11:23 +02:00
parent 41a359e22f
commit 43c2948756
4 changed files with 13 additions and 0 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
2016-06-18 Aurelien Jarno <aurelien@aurel32.net>
* sysdeps/unix/sysv/linux/mips/vfork.S (__vfork): Conditionalize
hidden_def, weak_alias and strong_alias on [IS_IN (libc)].
* sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Likewise.
2016-06-16 Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
* NEWS: Mention addition of nextup and nextdown.

2
sysdeps/unix/sysv/linux/mips/vfork.S
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@ -106,6 +106,8 @@ L(error):
#endif
END(__vfork)
#if IS_IN (libc)
libc_hidden_def(__vfork)
weak_alias (__vfork, vfork)
strong_alias (__vfork, __libc_vfork)
#endif

2
sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
View File

@ -44,6 +44,8 @@ ENTRY(__vfork)
nop
END(__vfork)
#if IS_IN (libc)
libc_hidden_def (__vfork)
weak_alias (__vfork, vfork)
strong_alias (__vfork, __libc_vfork)
#endif

2
sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
View File

@ -44,6 +44,8 @@ ENTRY(__vfork)
nop
END(__vfork)
#if IS_IN (libc)
libc_hidden_def (__vfork)
weak_alias (__vfork, vfork)
strong_alias (__vfork, __libc_vfork)
#endif