mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
239 lines
7.9 KiB
C
239 lines
7.9 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "sdkconfig.h"
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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 <assert.h>
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#include "esp_newlib.h"
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#include "esp_attr.h"
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#include "soc/soc_caps.h"
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#include "esp_rom_caps.h"
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#include "esp_private/startup_internal.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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#elif CONFIG_IDF_TARGET_ESP32C2
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#include "esp32c2/rom/libc_stubs.h"
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#elif CONFIG_IDF_TARGET_ESP32C6
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#include "esp32c6/rom/libc_stubs.h"
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#elif CONFIG_IDF_TARGET_ESP32C5
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#include "esp32c5/rom/libc_stubs.h"
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#elif CONFIG_IDF_TARGET_ESP32H2
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#include "esp32h2/rom/libc_stubs.h"
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#elif CONFIG_IDF_TARGET_ESP32P4
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#include "esp32p4/rom/libc_stubs.h"
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#endif
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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 void esp_cleanup_r(struct _reent *rptr)
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{
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if (_REENT_STDIN(rptr) != _REENT_STDIN(_GLOBAL_REENT)) {
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_fclose_r(rptr, _REENT_STDIN(rptr));
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}
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if (_REENT_STDOUT(rptr) != _REENT_STDOUT(_GLOBAL_REENT)) {
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_fclose_r(rptr, _REENT_STDOUT(rptr));
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}
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if (_REENT_STDERR(rptr) != _REENT_STDERR(_GLOBAL_REENT)) {
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_fclose_r(rptr, _REENT_STDERR(rptr));
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}
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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 ESP_ROM_HAS_RETARGETABLE_LOCKING
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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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#if !CONFIG_IDF_TARGET_ESP32 && !CONFIG_IDF_TARGET_ESP32S2
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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 to ever call __sinit, so it's implemented as abort() for now.
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__sinit may be called in IDF side only if /dev/console used as input/output. It called only
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once for _GLOBAL_REENT. Then reuse std file pointers from _GLOBAL_REENT in another reents.
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See esp_newlib_init() and esp_reent_init() for details.
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*/
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.__sinit = (void *)abort,
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._cleanup_r = &esp_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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#else
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syscall_table_ptr = &s_stub_table;
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#endif
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#if __NEWLIB__ > 4 || ( __NEWLIB__ == 4 && __NEWLIB_MINOR__ > 1 ) /* TODO: IDF-8134 */
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memset(&__sglue, 0, sizeof(__sglue));
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_global_impure_ptr = _GLOBAL_REENT;
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#else
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static struct _reent s_reent;
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_GLOBAL_REENT = &s_reent;
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#endif
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/* Ensure that the initialization of sfp is prevented until esp_newlib_init_global_stdio() is explicitly invoked. */
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_GLOBAL_REENT->__cleanup = esp_cleanup_r;
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_REENT_SDIDINIT(_GLOBAL_REENT) = 1;
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environ = malloc(sizeof(char*));
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if (environ == 0) {
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// if allocation fails this early in startup process, there's nothing else other than to panic.
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abort();
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}
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environ[0] = NULL;
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esp_newlib_locks_init();
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}
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ESP_SYSTEM_INIT_FN(init_newlib, CORE, BIT(0), 102)
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{
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esp_newlib_init();
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return ESP_OK;
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}
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void esp_setup_newlib_syscalls(void) __attribute__((alias("esp_newlib_init")));
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/**
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* Postponed _GLOBAL_REENT stdio FPs initialization.
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*
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* Can not be a part of esp_reent_init() because stdio device may not initialized yet.
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*
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* Called from startup code and FreeRTOS, not intended to be called from
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* application code.
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*/
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void esp_newlib_init_global_stdio(const char *stdio_dev)
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{
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if (stdio_dev == NULL) {
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_GLOBAL_REENT->__cleanup = NULL;
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_REENT_SDIDINIT(_GLOBAL_REENT) = 0;
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__sinit(_GLOBAL_REENT);
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_GLOBAL_REENT->__cleanup = esp_cleanup_r;
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_REENT_SDIDINIT(_GLOBAL_REENT) = 1;
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} else {
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_REENT_STDIN(_GLOBAL_REENT) = fopen(stdio_dev, "r");
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_REENT_STDOUT(_GLOBAL_REENT) = fopen(stdio_dev, "w");
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_REENT_STDERR(_GLOBAL_REENT) = fopen(stdio_dev, "w");
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#if ESP_ROM_NEEDS_SWSETUP_WORKAROUND
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/*
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- This workaround for printf functions using 32-bit time_t after the 64-bit time_t upgrade
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- The 32-bit time_t usage is triggered through ROM Newlib functions printf related functions calling __swsetup_r() on
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the first call to a particular file pointer (i.e., stdin, stdout, stderr)
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- Thus, we call the toolchain version of __swsetup_r() now (before any printf calls are made) to setup all of the
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file pointers. Thus, the ROM newlib code will never call the ROM version of __swsetup_r().
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- See IDFGH-7728 for more details
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*/
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extern int __swsetup_r(struct _reent *, FILE *);
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__swsetup_r(_GLOBAL_REENT, _REENT_STDIN(_GLOBAL_REENT));
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__swsetup_r(_GLOBAL_REENT, _REENT_STDOUT(_GLOBAL_REENT));
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__swsetup_r(_GLOBAL_REENT, _REENT_STDERR(_GLOBAL_REENT));
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#endif /* ESP_ROM_NEEDS_SWSETUP_WORKAROUND */
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}
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}
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ESP_SYSTEM_INIT_FN(init_newlib_stdio, CORE, BIT(0), 115)
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{
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#if defined(CONFIG_VFS_SUPPORT_IO) && !defined(CONFIG_ESP_CONSOLE_NONE)
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esp_newlib_init_global_stdio("/dev/console");
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#else
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esp_newlib_init_global_stdio(NULL);
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#endif
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return ESP_OK;
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}
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// Hook to force the linker to include this file
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void newlib_include_init_funcs(void)
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{
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}
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