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Merge branch 'bugfix/newlib_implement_atomic_load_store' into 'master'

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newlib: implement __atomic_load/__atomic_store functions

Closes LLVM-144

See merge request espressif/esp-idf!17561
This commit is contained in:
Ivan Grokhotkov 2022-05-13 02:14:15 +08:00
commit 849a296675
1 changed files with 16 additions and 0 deletions
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16
components/newlib/stdatomic.c
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@ -9,6 +9,7 @@
#include "sdkconfig.h"
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include "soc/soc_caps.h"
#include "freertos/FreeRTOS.h"
@ -494,3 +495,18 @@ ATOMIC_LOAD(8, long long unsigned int)
ATOMIC_STORE(8, long long unsigned int)
#endif // !HAS_ATOMICS_64
// Clang generates calls to the __atomic_load/__atomic_store functions for object size more then 4 bytes
void CLANG_ATOMIC_SUFFIX( __atomic_load ) (int size, void *src, void *dest, int model) {
unsigned state = _ATOMIC_ENTER_CRITICAL();
memcpy(dest, src, size);
_ATOMIC_EXIT_CRITICAL(state);
}
CLANG_DECLARE_ALIAS( __atomic_load )
void CLANG_ATOMIC_SUFFIX( __atomic_store ) (int size, void *dest, void *src, int model) {
unsigned state = _ATOMIC_ENTER_CRITICAL();
memcpy(dest, src, size);
_ATOMIC_EXIT_CRITICAL(state);
}
CLANG_DECLARE_ALIAS( __atomic_store)