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| author | Ivan Maidanski <ivmai@mail.ru> | 2020-04-01 08:48:19 +0300 |
|---|---|---|
| committer | Ivan Maidanski <ivmai@mail.ru> | 2020-04-01 08:48:19 +0300 |
| commit | 0b71944d9f1845cbf1799bb236c71576c0b227f7 (patch) | |
| tree | 031e3480361512f2aa9760116b2a2a16cb4418ee /src | |
| parent | 2ac8c4df8849b3bc077a002040584fa7029ff849 (diff) | |
| download | libatomic_ops-0b71944d9f1845cbf1799bb236c71576c0b227f7.tar.gz | |
Use GCC atomic intrinsics for s390x (GCC 5.4+)
* src/atomic_ops/sysdeps/gcc/s390.h [AO_GNUC_PREREQ(5,4) && __s390x__
&& !AO_DISABLE_GCC_ATOMICS]: Include generic.h.
* src/atomic_ops/sysdeps/gcc/s390.h [!(AO_GNUC_PREREQ(5,4) && __s390x__
&& !AO_DISABLE_GCC_ATOMICS)]: Do not include ordered_except_wr.h,
all_aligned_atomic_load_store.h, test_and_set_t_is_ao_t.h.
* src/atomic_ops/sysdeps/gcc/s390.h [!(AO_GNUC_PREREQ(5,4) && __s390x__
&& !AO_DISABLE_GCC_ATOMICS)] (AO_compare_and_swap_full,
AO_fetch_compare_and_swap_full): Do not define.
Diffstat (limited to 'src')
| -rw-r--r-- | src/atomic_ops/sysdeps/gcc/s390.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/atomic_ops/sysdeps/gcc/s390.h b/src/atomic_ops/sysdeps/gcc/s390.h index 91bec4e..aece4d2 100644 --- a/src/atomic_ops/sysdeps/gcc/s390.h +++ b/src/atomic_ops/sysdeps/gcc/s390.h @@ -15,6 +15,15 @@ * */ +#if AO_GNUC_PREREQ(5, 4) && defined(__s390x__) \ + && !defined(AO_DISABLE_GCC_ATOMICS) + /* Probably, it could be enabled for earlier gcc versions. */ + /* TODO: As of clang-3.8.0, an error occurs in backend for AtomicFence. */ + +# include "generic.h" + +#else /* AO_DISABLE_GCC_ATOMICS */ + /* The relevant documentation appears to be at */ /* http://publibz.boulder.ibm.com/epubs/pdf/dz9zr003.pdf */ /* around page 5-96. Apparently: */ @@ -78,4 +87,6 @@ AO_fetch_compare_and_swap_full(volatile AO_t *addr, } #define AO_HAVE_fetch_compare_and_swap_full +#endif /* AO_DISABLE_GCC_ATOMICS */ + /* TODO: Add double-wide operations for 32-bit executables. */ |