4  * SPDX-License-Identifier: Apache-2.0
13 #include <zephyr/linker/linker-defs.h>
17 #include <zephyr/sys/libc-hooks.h>
29 int _open(const char *name, int mode);
43  * - HEAP_BASE base address of the heap arena
44  * - MAX_HEAP_SIZE size of the heap arena
59 	/* Arena size expressed in Kconfig, due to power-of-two size/align
104 		#define MAX_HEAP_SIZE	(POINTER_TO_UINT(&_heap_sentry) - \
107 		#define MAX_HEAP_SIZE	(KB(CONFIG_SRAM_SIZE) - (HEAP_BASE - \
242 int _open(const char *name, int mode)  in _open()  argument
244 	return -1;  in _open()
250 	return -1;  in _close()
280 	st->st_mode = S_IFCHR;  in _fstat()
318 		ret = (void *)-1;  in _sbrk()
336  * Zephyr-side locks.
365 	/* Initialise non-recursive locks */  in newlib_locks_prepare()
378 /* Create a new dynamic non-recursive lock */
379 void __retarget_lock_init(_LOCK_T *lock)  in __retarget_lock_init()  argument
381 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_init()
385 	*lock = malloc(sizeof(struct k_sem));  in __retarget_lock_init()
387 	*lock = k_object_alloc(K_OBJ_SEM);  in __retarget_lock_init()
389 	__ASSERT(*lock != NULL, "non-recursive lock allocation failed");  in __retarget_lock_init()
391 	k_sem_init((struct k_sem *)*lock, 1, 1);  in __retarget_lock_init()
393 	k_object_access_all_grant(*lock);  in __retarget_lock_init()
397 /* Create a new dynamic recursive lock */
398 void __retarget_lock_init_recursive(_LOCK_T *lock)  in __retarget_lock_init_recursive()  argument
400 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_init_recursive()
404 	*lock = malloc(sizeof(struct k_mutex));  in __retarget_lock_init_recursive()
406 	*lock = k_object_alloc(K_OBJ_MUTEX);  in __retarget_lock_init_recursive()
408 	__ASSERT(*lock != NULL, "recursive lock allocation failed");  in __retarget_lock_init_recursive()
410 	k_mutex_init((struct k_mutex *)*lock);  in __retarget_lock_init_recursive()
412 	k_object_access_all_grant(*lock);  in __retarget_lock_init_recursive()
416 /* Close dynamic non-recursive lock */
417 void __retarget_lock_close(_LOCK_T lock)  in __retarget_lock_close()  argument
419 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_close()
421 	free(lock);  in __retarget_lock_close()
423 	k_object_release(lock);  in __retarget_lock_close()
427 /* Close dynamic recursive lock */
428 void __retarget_lock_close_recursive(_LOCK_T lock)  in __retarget_lock_close_recursive()  argument
430 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_close_recursive()
432 	free(lock);  in __retarget_lock_close_recursive()
434 	k_object_release(lock);  in __retarget_lock_close_recursive()
438 /* Acquiure non-recursive lock */
439 void __retarget_lock_acquire(_LOCK_T lock)  in __retarget_lock_acquire()  argument
441 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_acquire()
442 	k_sem_take((struct k_sem *)lock, K_FOREVER);  in __retarget_lock_acquire()
445 /* Acquiure recursive lock */
446 void __retarget_lock_acquire_recursive(_LOCK_T lock)  in __retarget_lock_acquire_recursive()  argument
448 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_acquire_recursive()
449 	k_mutex_lock((struct k_mutex *)lock, K_FOREVER);  in __retarget_lock_acquire_recursive()
452 /* Try acquiring non-recursive lock */
453 int __retarget_lock_try_acquire(_LOCK_T lock)  in __retarget_lock_try_acquire()  argument
455 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_try_acquire()
456 	return !k_sem_take((struct k_sem *)lock, K_NO_WAIT);  in __retarget_lock_try_acquire()
459 /* Try acquiring recursive lock */
460 int __retarget_lock_try_acquire_recursive(_LOCK_T lock)  in __retarget_lock_try_acquire_recursive()  argument
462 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_try_acquire_recursive()
463 	return !k_mutex_lock((struct k_mutex *)lock, K_NO_WAIT);  in __retarget_lock_try_acquire_recursive()
466 /* Release non-recursive lock */
467 void __retarget_lock_release(_LOCK_T lock)  in __retarget_lock_release()  argument
469 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_release()
470 	k_sem_give((struct k_sem *)lock);  in __retarget_lock_release()
473 /* Release recursive lock */
474 void __retarget_lock_release_recursive(_LOCK_T lock)  in __retarget_lock_release_recursive()  argument
476 	__ASSERT_NO_MSG(lock != NULL);  in __retarget_lock_release_recursive()
477 	k_mutex_unlock((struct k_mutex *)lock);  in __retarget_lock_release_recursive()
493 	_write(2, chk_fail_msg, sizeof(chk_fail_msg) - 1);  in __chk_fail()
516 int _open_r(struct _reent *r, const char *name, int flags, int mode)  in _open_r()  argument
521 	return _open(name, mode);  in _open_r()
586 	/* Non-posix systems should not call gettimeofday() here as it will  in _gettimeofday()
589 	return -1;  in _gettimeofday()