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IDF release/v4.0 08219f3cf

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me-no-dev
2020-01-25 14:51:58 +00:00
parent 8c723be135
commit 41ba143063
858 changed files with 37940 additions and 49396 deletions
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tools/sdk/include/esp32/rom/libc_stubs.h
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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ROM_LIBC_STUBS_H_
#define _ROM_LIBC_STUBS_H_
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdarg.h>
#include <reent.h>
#include <errno.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
ESP32 ROM code contains implementations of some of C library functions.
Whenever a function in ROM needs to use a syscall, it calls a pointer to the corresponding syscall
implementation defined in the following struct.
The table itself, by default, is not allocated in RAM. There are two pointers, `syscall_table_ptr_pro` and
`syscall_table_ptr_app`, which can be set to point to the locations of syscall tables of CPU 0 (aka PRO CPU)
and CPU 1 (aka APP CPU). Location of these pointers in .bss segment of ROM code is defined in linker script.
So, before using any of the C library functions (except for pure functions and memcpy/memset functions),
application must allocate syscall table structure for each CPU being used, and populate it with pointers
to actual implementations of corresponding syscalls.
*/
struct syscall_stub_table
{
struct _reent* (*__getreent)(void);
void* (*_malloc_r)(struct _reent *r, size_t);
void (*_free_r)(struct _reent *r, void*);
void* (*_realloc_r)(struct _reent *r, void*, size_t);
void* (*_calloc_r)(struct _reent *r, size_t, size_t);
void (*_abort)(void);
int (*_system_r)(struct _reent *r, const char*);
int (*_rename_r)(struct _reent *r, const char*, const char*);
clock_t (*_times_r)(struct _reent *r, struct tms *);
int (*_gettimeofday_r) (struct _reent *r, struct timeval *, void *);
void (*_raise_r)(struct _reent *r); /* function signature is incorrect in ROM */
int (*_unlink_r)(struct _reent *r, const char*);
int (*_link_r)(struct _reent *r, const char*, const char*);
int (*_stat_r)(struct _reent *r, const char*, struct stat *);
int (*_fstat_r)(struct _reent *r, int, struct stat *);
void* (*_sbrk_r)(struct _reent *r, ptrdiff_t);
int (*_getpid_r)(struct _reent *r);
int (*_kill_r)(struct _reent *r, int, int);
void (*_exit_r)(struct _reent *r, int);
int (*_close_r)(struct _reent *r, int);
int (*_open_r)(struct _reent *r, const char *, int, int);
int (*_write_r)(struct _reent *r, int, const void *, int);
int (*_lseek_r)(struct _reent *r, int, int, int);
int (*_read_r)(struct _reent *r, int, void *, int);
void (*_lock_init)(_lock_t *lock);
void (*_lock_init_recursive)(_lock_t *lock);
void (*_lock_close)(_lock_t *lock);
void (*_lock_close_recursive)(_lock_t *lock);
void (*_lock_acquire)(_lock_t *lock);
void (*_lock_acquire_recursive)(_lock_t *lock);
int (*_lock_try_acquire)(_lock_t *lock);
int (*_lock_try_acquire_recursive)(_lock_t *lock);
void (*_lock_release)(_lock_t *lock);
void (*_lock_release_recursive)(_lock_t *lock);
int (*_printf_float)(struct _reent *data, void *pdata, FILE * fp, int (*pfunc) (struct _reent *, FILE *, _CONST char *, size_t len), va_list * ap);
int (*_scanf_float) (struct _reent *rptr, void *pdata, FILE *fp, va_list *ap);
};
extern struct syscall_stub_table* syscall_table_ptr_pro;
extern struct syscall_stub_table* syscall_table_ptr_app;
#ifdef __cplusplus
} // extern "C"
#endif
#endif /* _ROM_LIBC_STUBS_H_ */
#warning rom/libc_stubs.h is deprecated, please use esp32/rom/libc_stubs.h instead
#include "esp32/rom/libc_stubs.h"