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remove __clang ifdef around atomic emulation

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* CI errors led me to believe these were needed, but as it turns out the
load/store intrinsics are required even when idf is built by gcc when
linking to a clang based project.
* remove ... postfix inside `SYNC_LOCK_TEST_AND_SET` expansion
This commit is contained in:
Scott Mabin 2021-10-12 16:28:49 +01:00
parent b86fe0c66c
commit d5e4fc8356
1 changed files with 14 additions and 20 deletions
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34
components/newlib/stdatomic.c
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@ -200,7 +200,7 @@ CLANG_DECLARE_ALIAS( __sync_bool_compare_and_swap_ ## n )
} \
CLANG_DECLARE_ALIAS( __sync_val_compare_and_swap_ ## n )
#define SYNC_LOCK_TEST_AND_SET(n, type) type CLANG_ATOMIC_SUFFIX(__sync_lock_test_and_set_ ## n) (type *ptr, type val, ...) \
#define SYNC_LOCK_TEST_AND_SET(n, type) type CLANG_ATOMIC_SUFFIX(__sync_lock_test_and_set_ ## n) (type *ptr, type val) \
{ \
unsigned state = _ATOMIC_ENTER_CRITICAL(); \
type ret = *ptr; \
@ -210,7 +210,7 @@ CLANG_DECLARE_ALIAS( __sync_val_compare_and_swap_ ## n )
}
CLANG_DECLARE_ALIAS( __sync_lock_test_and_set_ ## n )
#define SYNC_LOCK_RELEASE(n, type) void CLANG_ATOMIC_SUFFIX(__sync_lock_release_ ## n) (type *ptr, ...) \
#define SYNC_LOCK_RELEASE(n, type) void CLANG_ATOMIC_SUFFIX(__sync_lock_release_ ## n) (type *ptr) \
{ \
unsigned state = _ATOMIC_ENTER_CRITICAL(); \
*ptr = 0; \
@ -277,16 +277,6 @@ SYNC_VAL_CMP_EXCHANGE(1, uint8_t)
SYNC_VAL_CMP_EXCHANGE(2, uint16_t)
SYNC_VAL_CMP_EXCHANGE(4, uint32_t)
#ifdef __clang__
// LLVM has not implemented native atomic load/stores for riscv targets without the Atomic extension
// therfore we provide libcalls here when building with the clang toolchain. LLVM thread: https://reviews.llvm.org/D47553.
ATOMIC_LOAD(1, uint8_t)
ATOMIC_LOAD(2, uint16_t)
ATOMIC_LOAD(4, uint32_t)
ATOMIC_STORE(1, uint8_t)
ATOMIC_STORE(2, uint16_t)
ATOMIC_STORE(4, uint32_t)
SYNC_LOCK_TEST_AND_SET(1, uint8_t)
SYNC_LOCK_TEST_AND_SET(2, uint16_t)
@ -296,16 +286,19 @@ SYNC_LOCK_RELEASE(1, uint8_t)
SYNC_LOCK_RELEASE(2, uint16_t)
SYNC_LOCK_RELEASE(4, uint32_t)
#endif
// LLVM has not implemented native atomic load/stores for riscv targets without the Atomic extension. LLVM thread: https://reviews.llvm.org/D47553.
// Even though GCC does transform them, these libcalls need to be available for the case where a LLVM based project links against IDF.
ATOMIC_LOAD(1, uint8_t)
ATOMIC_LOAD(2, uint16_t)
ATOMIC_LOAD(4, uint32_t)
ATOMIC_STORE(1, uint8_t)
ATOMIC_STORE(2, uint16_t)
ATOMIC_STORE(4, uint32_t)
#endif // !HAS_ATOMICS_32
#if !HAS_ATOMICS_64
ATOMIC_LOAD(8, uint64_t)
ATOMIC_STORE(8, uint64_t)
ATOMIC_EXCHANGE(8, uint64_t)
CMP_EXCHANGE(8, uint64_t)
@ -334,11 +327,12 @@ SYNC_BOOL_CMP_EXCHANGE(8, uint64_t)
SYNC_VAL_CMP_EXCHANGE(8, uint64_t)
#ifdef __clang__
SYNC_LOCK_TEST_AND_SET(8, uint64_t)
SYNC_LOCK_RELEASE(8, uint64_t)
#endif
// LLVM has not implemented native atomic load/stores for riscv targets without the Atomic extension. LLVM thread: https://reviews.llvm.org/D47553.
// Even though GCC does transform them, these libcalls need to be available for the case where a LLVM based project links against IDF.
ATOMIC_LOAD(8, uint64_t)
ATOMIC_STORE(8, uint64_t)
#endif // !HAS_ATOMICS_64