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6285f0881e
The sys_foo() naming scheme used by the syscall wrappers may collide with application symbols. Especially as 'sys_' is an obvious naming scheme an application may choose for its own custom systemcall wrappers. Avoid these conflicts by using an leading underscore which moves the names into the implementation's namespace. This naming scheme was chosen over a '__nolibc_' prefix, as these functions are not an implementation detail but a documented interface meant to be used by applications. While this may break some existing users, adapting them should be straightforward. Given that nolibc is most-likely vendored, no unexpected breakage should happen. No in-tree users are affected. These conflicts happen when compiling some of the kernel selftests with nolibc. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://patch.msgid.link/20260319-nolibc-namespacing-v1-1-33c22eaddb5e@weissschuh.net
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* uio for NOLIBC
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* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
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* Copyright (C) 2025 Intel Corporation
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*/
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/* make sure to include all global symbols */
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#include "../nolibc.h"
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#ifndef _NOLIBC_SYS_UIO_H
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#define _NOLIBC_SYS_UIO_H
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#include "../sys.h"
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#include <linux/uio.h>
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/*
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* ssize_t readv(int fd, const struct iovec *iovec, int count);
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*/
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static __attribute__((unused))
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ssize_t _sys_readv(int fd, const struct iovec *iovec, int count)
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{
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return __nolibc_syscall3(__NR_readv, fd, iovec, count);
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}
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static __attribute__((unused))
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ssize_t readv(int fd, const struct iovec *iovec, int count)
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{
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return __sysret(_sys_readv(fd, iovec, count));
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}
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/*
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* ssize_t writev(int fd, const struct iovec *iovec, int count);
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*/
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static __attribute__((unused))
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ssize_t _sys_writev(int fd, const struct iovec *iovec, int count)
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{
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return __nolibc_syscall3(__NR_writev, fd, iovec, count);
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}
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static __attribute__((unused))
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ssize_t writev(int fd, const struct iovec *iovec, int count)
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{
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return __sysret(_sys_writev(fd, iovec, count));
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}
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#endif /* _NOLIBC_SYS_UIO_H */
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