mirror of
https://github.com/espressif/esp-idf.git
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150 lines
4.9 KiB
C
150 lines
4.9 KiB
C
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <string.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/signal.h>
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#include <sys/unistd.h>
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#include <sys/reent.h>
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#include "esp_newlib.h"
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#include "esp_attr.h"
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#include "sdkconfig.h"
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#include "soc/soc_caps.h"
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#if CONFIG_IDF_TARGET_ESP32
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#include "esp32/rom/libc_stubs.h"
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#elif CONFIG_IDF_TARGET_ESP32S2
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#include "esp32s2/rom/libc_stubs.h"
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#elif CONFIG_IDF_TARGET_ESP32S3
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#include "esp32s3/rom/libc_stubs.h"
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#elif CONFIG_IDF_TARGET_ESP32C3
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#include "esp32c3/rom/libc_stubs.h"
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#endif
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static struct _reent s_reent;
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extern int _printf_float(struct _reent *rptr,
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void *pdata,
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FILE * fp,
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int (*pfunc) (struct _reent *, FILE *, const char *, size_t len),
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va_list * ap);
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extern int _scanf_float(struct _reent *rptr,
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void *pdata,
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FILE *fp,
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va_list *ap);
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static void raise_r_stub(struct _reent *rptr)
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{
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_raise_r(rptr, 0);
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}
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static struct syscall_stub_table s_stub_table = {
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.__getreent = &__getreent,
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._malloc_r = &_malloc_r,
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._free_r = &_free_r,
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._realloc_r = &_realloc_r,
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._calloc_r = &_calloc_r,
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._abort = &abort,
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._system_r = &_system_r,
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._rename_r = &_rename_r,
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._times_r = &_times_r,
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._gettimeofday_r = &_gettimeofday_r,
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._raise_r = &raise_r_stub,
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._unlink_r = &_unlink_r,
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._link_r = &_link_r,
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._stat_r = &_stat_r,
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._fstat_r = &_fstat_r,
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._sbrk_r = &_sbrk_r,
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._getpid_r = &_getpid_r,
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._kill_r = &_kill_r,
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._exit_r = NULL, // never called in ROM
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._close_r = &_close_r,
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._open_r = &_open_r,
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._write_r = (int (*)(struct _reent *r, int, const void *, int)) &_write_r,
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._lseek_r = (int (*)(struct _reent *r, int, int, int)) &_lseek_r,
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._read_r = (int (*)(struct _reent *r, int, void *, int)) &_read_r,
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#if _RETARGETABLE_LOCKING /* TODO: only if RETARGETABLE LOCKING IS IN ROM */
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._retarget_lock_init = &__retarget_lock_init,
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._retarget_lock_init_recursive = &__retarget_lock_init_recursive,
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._retarget_lock_close = &__retarget_lock_close,
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._retarget_lock_close_recursive = &__retarget_lock_close_recursive,
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._retarget_lock_acquire = &__retarget_lock_acquire,
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._retarget_lock_acquire_recursive = &__retarget_lock_acquire_recursive,
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._retarget_lock_try_acquire = &__retarget_lock_try_acquire,
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._retarget_lock_try_acquire_recursive = &__retarget_lock_try_acquire_recursive,
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._retarget_lock_release = &__retarget_lock_release,
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._retarget_lock_release_recursive = &__retarget_lock_release_recursive,
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#else
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._lock_init = &_lock_init,
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._lock_init_recursive = &_lock_init_recursive,
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._lock_close = &_lock_close,
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._lock_close_recursive = &_lock_close_recursive,
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._lock_acquire = &_lock_acquire,
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._lock_acquire_recursive = &_lock_acquire_recursive,
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._lock_try_acquire = &_lock_try_acquire,
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._lock_try_acquire_recursive = &_lock_try_acquire_recursive,
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._lock_release = &_lock_release,
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._lock_release_recursive = &_lock_release_recursive,
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#endif
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#ifdef CONFIG_NEWLIB_NANO_FORMAT
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._printf_float = &_printf_float,
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._scanf_float = &_scanf_float,
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#else
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._printf_float = NULL,
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._scanf_float = NULL,
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#endif
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#ifdef CONFIG_IDF_TARGET_ESP32C3
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/* TODO IDF-2570 : mark that this assert failed in ROM, to avoid confusion between IDF & ROM
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assertion failures (as function names & source file names will be similar)
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*/
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.__assert_func = __assert_func,
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/* We don't expect either ROM code or IDF to ever call __sinit, so it's implemented as abort() for now.
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esp_reent_init() does this job inside IDF.
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Kept in the syscall table in case we find a need for it later.
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*/
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.__sinit = (void *)abort,
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._cleanup_r = &_cleanup_r,
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#endif
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};
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void esp_newlib_init(void)
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{
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#if CONFIG_IDF_TARGET_ESP32
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syscall_table_ptr_pro = syscall_table_ptr_app = &s_stub_table;
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#elif CONFIG_IDF_TARGET_ESP32S2
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syscall_table_ptr_pro = &s_stub_table;
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#elif CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3
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syscall_table_ptr = &s_stub_table;
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#endif
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_GLOBAL_REENT = &s_reent;
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environ = malloc(sizeof(char*));
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environ[0] = NULL;
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esp_newlib_locks_init();
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}
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void esp_setup_newlib_syscalls(void) __attribute__((alias("esp_newlib_init")));
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