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tools/nolibc: move prctl() to sys/prctl.h

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This is the location regular userspace expects this definition.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20250515-nolibc-sys-v1-3-74f82eea3b59@weissschuh.net
This commit is contained in:
Thomas Weißschuh 2025-05-15 21:57:49 +02:00
parent 6e7c805a93
commit 3edd5365f9
4 changed files with 38 additions and 21 deletions
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1
tools/include/nolibc/Makefile
View file

@ -52,6 +52,7 @@ all_files := \
sys/ioctl.h \
sys/mman.h \
sys/mount.h \
sys/prctl.h \
sys/random.h \
sys/stat.h \
sys/syscall.h \

1
tools/include/nolibc/nolibc.h
View file

@ -100,6 +100,7 @@
#include "sys/ioctl.h"
#include "sys/mman.h"
#include "sys/mount.h"
#include "sys/prctl.h"
#include "sys/random.h"
#include "sys/stat.h"
#include "sys/syscall.h"

21
tools/include/nolibc/sys.h
View file

@ -23,7 +23,6 @@
#include <linux/auxvec.h>
#include <linux/fcntl.h> /* for O_* and AT_* */
#include <linux/stat.h> /* for statx() */
#include <linux/prctl.h>
#include <linux/resource.h>
#include <linux/utsname.h>
@ -697,26 +696,6 @@ int pipe(int pipefd[2])
}
/*
* int prctl(int option, unsigned long arg2, unsigned long arg3,
* unsigned long arg4, unsigned long arg5);
*/
static __attribute__((unused))
int sys_prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5)
{
return my_syscall5(__NR_prctl, option, arg2, arg3, arg4, arg5);
}
static __attribute__((unused))
int prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5)
{
return __sysret(sys_prctl(option, arg2, arg3, arg4, arg5));
}
/*
* int pivot_root(const char *new, const char *old);
*/

36
tools/include/nolibc/sys/prctl.h Normal file
View file

@ -0,0 +1,36 @@
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* Prctl definitions for NOLIBC
* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
*/
/* make sure to include all global symbols */
#include "../nolibc.h"
#ifndef _NOLIBC_SYS_PRCTL_H
#define _NOLIBC_SYS_PRCTL_H
#include "../sys.h"
#include <linux/prctl.h>
/*
* int prctl(int option, unsigned long arg2, unsigned long arg3,
* unsigned long arg4, unsigned long arg5);
*/
static __attribute__((unused))
int sys_prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5)
{
return my_syscall5(__NR_prctl, option, arg2, arg3, arg4, arg5);
}
static __attribute__((unused))
int prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5)
{
return __sysret(sys_prctl(option, arg2, arg3, arg4, arg5));
}
#endif /* _NOLIBC_SYS_PRCTL_H */