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| author | Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> | 2015-12-28 12:24:43 -0200 |
|---|---|---|
| committer | Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> | 2016-01-08 17:47:33 -0200 |
| commit | 42bf1c897170ff951c7fd0ee9da25f97ff787396 (patch) | |
| tree | 3e69cd2d5201944482407b86b4854fe75ab34f12 /sysdeps/unix/sysv/linux/powerpc/elision-unlock.c | |
| parent | bc49a7afd38c1bd00f0ad9fd6592a5959d5ba72e (diff) | |
| download | glibc-42bf1c897170ff951c7fd0ee9da25f97ff787396.tar glibc-42bf1c897170ff951c7fd0ee9da25f97ff787396.tar.gz glibc-42bf1c897170ff951c7fd0ee9da25f97ff787396.tar.bz2 glibc-42bf1c897170ff951c7fd0ee9da25f97ff787396.zip | |
powerpc: Enforce compiler barriers on hardware transactions
Work around a GCC behavior with hardware transactional memory built-ins.
GCC doesn't treat the PowerPC transactional built-ins as compiler
barriers, moving instructions past the transaction boundaries and
altering their atomicity.
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/elision-unlock.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/elision-unlock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/elision-unlock.c b/sysdeps/unix/sysv/linux/powerpc/elision-unlock.c index 2561b1dca2..43c5a67df2 100644 --- a/sysdeps/unix/sysv/linux/powerpc/elision-unlock.c +++ b/sysdeps/unix/sysv/linux/powerpc/elision-unlock.c @@ -25,7 +25,7 @@ __lll_unlock_elision (int *lock, short *adapt_count, int pshared) { /* When the lock was free we're in a transaction. */ if (*lock == 0) - __builtin_tend (0); + __libc_tend (0); else { lll_unlock ((*lock), pshared); |