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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
54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* Resource definitions for NOLIBC
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* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
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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_RESOURCE_H
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#define _NOLIBC_SYS_RESOURCE_H
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#include "../sys.h"
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#include <linux/resource.h>
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/*
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* int getrlimit(int resource, struct rlimit *rlim);
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* int setrlimit(int resource, const struct rlimit *rlim);
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*/
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static __attribute__((unused))
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int _sys_prlimit64(pid_t pid, int resource,
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const struct rlimit64 *new_limit, struct rlimit64 *old_limit)
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{
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return __nolibc_syscall4(__NR_prlimit64, pid, resource, new_limit, old_limit);
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}
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static __attribute__((unused))
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int getrlimit(int resource, struct rlimit *rlim)
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{
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struct rlimit64 rlim64;
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int ret;
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ret = __sysret(_sys_prlimit64(0, resource, NULL, &rlim64));
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rlim->rlim_cur = rlim64.rlim_cur;
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rlim->rlim_max = rlim64.rlim_max;
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return ret;
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}
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static __attribute__((unused))
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int setrlimit(int resource, const struct rlimit *rlim)
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{
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struct rlimit64 rlim64 = {
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.rlim_cur = rlim->rlim_cur,
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.rlim_max = rlim->rlim_max,
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};
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return __sysret(_sys_prlimit64(0, resource, &rlim64, NULL));
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}
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#endif /* _NOLIBC_SYS_RESOURCE_H */
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