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Add some more builtins to chibicc

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https://justine.lol/cosmopolitan/documentation.html should now contain a
lot of functions that had been missing previously due to not having them
This commit is contained in:
Justine Tunney 2022-04-17 12:25:10 -07:00
parent ab38f0823d
commit f1dfa4bdfa
17 changed files with 417 additions and 201 deletions
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22
libc/intrin/spinlock.h
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@ -4,17 +4,17 @@
#if (__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 401 && \
!defined(__STRICT_ANSI__)
#define _spinlock(lock) \
do { \
for (;;) { \
typeof(*(lock)) x; \
__atomic_load(lock, &x, __ATOMIC_RELAXED); \
if (!x && !__sync_lock_test_and_set(lock, __ATOMIC_CONSUME)) { \
break; \
} else { \
__builtin_ia32_pause(); \
} \
} \
#define _spinlock(lock) \
do { \
for (;;) { \
typeof(*(lock)) x; \
__atomic_load(lock, &x, __ATOMIC_RELAXED); \
if (!x && !__sync_lock_test_and_set(lock, 1)) { \
break; \
} else { \
__builtin_ia32_pause(); \
} \
} \
} while (0)
#define _spunlock(lock) __sync_lock_release(lock)