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| author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2025-06-04 13:35:39 +0900 |
|---|---|---|
| committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2025-06-04 15:31:28 +0900 |
| commit | c5f7d274d78a5ef6818bc5d344a1f27bf2f794c4 (patch) | |
| tree | 00a8ff76a8de9fba99a7edc5f6462a2b69fa2045 /ruby_atomic.h | |
| parent | 47f55b4b449c315a9628aa9849428c2c0e98e167 (diff) | |
Check for 64bit atomic operations
May not be supported on some 32bit architectures.
```
/usr/lib/gcc-cross/m68k-linux-gnu/14/../../../../m68k-linux-gnu/bin/ld: ../../libruby-static.a(vm.o): in function `rbimpl_atomic_u64_set_relaxed':
/home/ubuntu/build/ruby/master/m68k-linux/../src/ruby_atomic.h:60:(.text+0x2468): undefined reference to `__atomic_store_8'
/usr/lib/gcc-cross/m68k-linux-gnu/14/../../../../m68k-linux-gnu/bin/ld: ../../libruby-static.a(vm.o): in function `rbimpl_atomic_u64_load_relaxed':
/home/ubuntu/build/ruby/master/m68k-linux/../src/ruby_atomic.h:43:(.text+0x2950):
undefined reference to `__atomic_load_8'
```
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/13509
Diffstat (limited to 'ruby_atomic.h')
| -rw-r--r-- | ruby_atomic.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/ruby_atomic.h b/ruby_atomic.h index 5c9049e001..2b4c16ba07 100644 --- a/ruby_atomic.h +++ b/ruby_atomic.h @@ -39,7 +39,7 @@ rbimpl_atomic_load_relaxed(rb_atomic_t *ptr) static inline uint64_t rbimpl_atomic_u64_load_relaxed(const uint64_t *value) { -#if defined(HAVE_GCC_ATOMIC_BUILTINS) +#if defined(HAVE_GCC_ATOMIC_BUILTINS_64) return __atomic_load_n(value, __ATOMIC_RELAXED); #elif defined(_WIN32) uint64_t val = *value; @@ -56,7 +56,7 @@ rbimpl_atomic_u64_load_relaxed(const uint64_t *value) static inline void rbimpl_atomic_u64_set_relaxed(uint64_t *address, uint64_t value) { -#if defined(HAVE_GCC_ATOMIC_BUILTINS) +#if defined(HAVE_GCC_ATOMIC_BUILTINS_64) __atomic_store_n(address, value, __ATOMIC_RELAXED); #elif defined(_WIN32) InterlockedExchange64(address, value); |