61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2018, Intel Corporation.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef ZEPHYR_INCLUDE_SYS_LIBC_HOOKS_H_
|
||
|
|
#define ZEPHYR_INCLUDE_SYS_LIBC_HOOKS_H_
|
||
|
|
|
||
|
|
#include <toolchain.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stddef.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Private header for specifying accessory functions to the C library internals
|
||
|
|
* that need to call into the kernel as system calls
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef CONFIG_NEWLIB_LIBC
|
||
|
|
|
||
|
|
/* syscall generation ignores preprocessor, ensure this is defined to ensure
|
||
|
|
* we don't have compile errors
|
||
|
|
*/
|
||
|
|
#define _MLIBC_RESTRICT
|
||
|
|
|
||
|
|
__syscall int z_zephyr_read_stdin(char *buf, int nbytes);
|
||
|
|
|
||
|
|
__syscall int z_zephyr_write_stdout(const void *buf, int nbytes);
|
||
|
|
|
||
|
|
#else
|
||
|
|
/* Minimal libc */
|
||
|
|
|
||
|
|
__syscall int zephyr_fputc(int c, FILE * stream);
|
||
|
|
|
||
|
|
__syscall size_t zephyr_fwrite(const void *_MLIBC_RESTRICT ptr, size_t size,
|
||
|
|
size_t nitems, FILE *_MLIBC_RESTRICT stream);
|
||
|
|
#endif /* CONFIG_NEWLIB_LIBC */
|
||
|
|
|
||
|
|
#ifdef CONFIG_USERSPACE
|
||
|
|
#if defined(CONFIG_NEWLIB_LIBC) || (CONFIG_MINIMAL_LIBC_MALLOC_ARENA_SIZE > 0)
|
||
|
|
#define Z_MALLOC_PARTITION_EXISTS 1
|
||
|
|
|
||
|
|
/* Memory partition containing the libc malloc arena */
|
||
|
|
extern struct k_mem_partition z_malloc_partition;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_NEWLIB_LIBC) || defined(CONFIG_STACK_CANARIES)
|
||
|
|
/* Minimal libc has no globals. We do put the stack canary global in the
|
||
|
|
* libc partition since it is not worth placing in a partition of its own.
|
||
|
|
*/
|
||
|
|
#define Z_LIBC_PARTITION_EXISTS 1
|
||
|
|
|
||
|
|
/* C library globals, except the malloc arena */
|
||
|
|
extern struct k_mem_partition z_libc_partition;
|
||
|
|
#endif
|
||
|
|
#endif /* CONFIG_USERSPACE */
|
||
|
|
|
||
|
|
#include <syscalls/libc-hooks.h>
|
||
|
|
|
||
|
|
#endif /* ZEPHYR_INCLUDE_SYS_LIBC_HOOKS_H_ */
|