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| author |   H.J. Lu <hjl.tools@gmail.com> | 2020-04-06 06:02:11 -0700 |
|---|---|---|
| committer |   Andreas K. Hüttel <dilfridge@gentoo.org> | 2020-04-10 14:31:16 +0300 |
| commit | d7effd61682650ee875994aa7c9fb623cb32085d (patch) | |
| tree | c3b88a0e2b3e83019b511bd71b1451a90a653447 | |
| parent | Add NEWS entry for CVE-2020-1752 (bug 25414) (diff) | |
| download | glibc-d7effd61682650ee875994aa7c9fb623cb32085d.tar.gz glibc-d7effd61682650ee875994aa7c9fb623cb32085d.tar.bz2 glibc-d7effd61682650ee875994aa7c9fb623cb32085d.zip | |
i386: Disable check_consistency for GCC 5 and above [BZ #25788]
check_consistency should be disabled for GCC 5 and above since there is
no fixed PIC register in GCC 5 and above. Check __GNUC_PREREQ (5,0)
instead OPTIMIZE_FOR_GCC_5 since OPTIMIZE_FOR_GCC_5 is false with
-fno-omit-frame-pointer.
(cherry picked from commit f90a7e96df87edadd503a0a32aa70fb97c55a044)
Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/sysdep.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h index 4aa7bb496a..76a587c78a 100644 --- a/sysdeps/unix/sysv/linux/i386/sysdep.h +++ b/sysdeps/unix/sysv/linux/i386/sysdep.h @@ -618,8 +618,9 @@ struct libc_do_syscall_args # define EXTRAVAR_5 #endif -/* Consistency check for position-independent code. */ -#if defined __PIC__ && !defined OPTIMIZE_FOR_GCC_5 +/* Consistency check for position-independent code. Disabled for GCC 5 + and above since there is no fixed PIC register in GCC 5 and above. */ +#if defined __PIC__ && !__GNUC_PREREQ (5,0) # define check_consistency() \ ({ int __res; \ __asm__ __volatile__ \ |