6f1d3ce4a7
- fix typo in readme - remove unneeded extern declaration - fix header guard macro - tabs->spaces in syscalls.c - spaces->tabs in tasks.c
106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
// Copyright 2015-2016 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 <sys/types.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/reent.h>
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#include <stdlib.h>
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#include "esp_attr.h"
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#include "freertos/FreeRTOS.h"
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void IRAM_ATTR abort()
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{
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do
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{
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__asm__ ("break 0,0");
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*((int*) 0) = 0;
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} while(true);
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}
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void* IRAM_ATTR _malloc_r(struct _reent *r, size_t size)
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{
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return pvPortMalloc(size);
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}
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void IRAM_ATTR _free_r(struct _reent *r, void* ptr)
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{
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vPortFree(ptr);
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}
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void* IRAM_ATTR _realloc_r(struct _reent *r, void* ptr, size_t size)
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{
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void* new_chunk;
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if (size == 0) {
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if (ptr) {
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vPortFree(ptr);
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}
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return NULL;
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}
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new_chunk = pvPortMalloc(size);
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if (new_chunk && ptr) {
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memcpy(new_chunk, ptr, size);
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vPortFree(ptr);
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}
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// realloc behaviour: don't free original chunk if alloc failed
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return new_chunk;
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}
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void* IRAM_ATTR _calloc_r(struct _reent *r, size_t count, size_t size)
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{
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void* result = pvPortMalloc(count * size);
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if (result)
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{
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memset(result, 0, count * size);
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}
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return result;
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}
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int _system_r(struct _reent *r, const char *str)
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{
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__errno_r(r) = ENOSYS;
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return -1;
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}
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void _raise_r(struct _reent *r)
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{
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abort();
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}
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void* _sbrk_r(struct _reent *r, ptrdiff_t sz)
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{
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abort();
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}
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int _getpid_r(struct _reent *r)
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{
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__errno_r(r) = ENOSYS;
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return -1;
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}
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int _kill_r(struct _reent *r, int pid, int sig)
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{
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__errno_r(r) = ENOSYS;
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return -1;
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}
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void _exit(int __status)
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{
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abort();
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}
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