b5639c4ee2
In case newlib is enabled, but POSIX subsys isn't, there're adhoc implementations of read() and write() which work only with adhoc stdin/stdout emulation layer. These are backed by system calls named like "read" and "write". Rename all these functions and syscalls to explicitly mention stdin/stdout in the names, to free namespace for the implementation of generic read/write syscalls which will integrate with POSIX fdtable. Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/*
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* Copyright (c) 2018, Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_MISC_LIBC_HOOKS_H_
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#define ZEPHYR_INCLUDE_MISC_LIBC_HOOKS_H_
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#include <toolchain.h>
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#include <stdio.h>
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#include <stddef.h>
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/*
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* Private header for specifying accessory functions to the C library internals
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* that need to call into the kernel as system calls
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*/
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#ifdef CONFIG_NEWLIB_LIBC
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/* syscall generation ignores preprocessor, ensure this is defined to ensure
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* we don't have compile errors
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*/
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#define _MLIBC_RESTRICT
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__syscall int _zephyr_read_stdin(char *buf, int nbytes);
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__syscall int _zephyr_write_stdout(const void *buf, int nbytes);
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#else
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/* Minimal libc */
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__syscall int _zephyr_fputc(int c, FILE *stream);
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__syscall size_t _zephyr_fwrite(const void *_MLIBC_RESTRICT ptr, size_t size,
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size_t nitems, FILE *_MLIBC_RESTRICT stream);
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#endif /* CONFIG_NEWLIB_LIBC */
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#ifdef CONFIG_USERSPACE
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/* Memory partition containing the libc malloc arena */
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extern struct k_mem_partition z_malloc_partition;
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/* C library globals, except the malloc arena */
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extern struct k_mem_partition z_libc_partition;
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#endif
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#include <syscalls/libc-hooks.h>
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#endif /* ZEPHYR_INCLUDE_MISC_LIBC_HOOKS_H_ */
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