mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-02 15:18:19 +00:00
Code Issues Releases Wiki Activity

tools/nolibc: s390: provide custom implementation for sys_fork

Browse source 
On s390 the first two arguments to the clone() syscall are swapped,
as documented in clone(2).

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Cc: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Thomas Weißschuh 2023-04-15 23:28:47 +02:00 committed by Paul E. McKenney
parent f2fa6b384c
commit 404fa87c0e
2 changed files with 11 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
tools/include/nolibc/arch-s390.h
View file

@ -5,6 +5,7 @@
#ifndef _NOLIBC_ARCH_S390_H
#define _NOLIBC_ARCH_S390_H
#include <asm/signal.h>
#include <asm/unistd.h>
/* The struct returned by the stat() syscall, equivalent to stat64(). The
@ -223,4 +224,12 @@ void *sys_mmap(void *addr, size_t length, int prot, int flags, int fd,
return (void *)my_syscall1(__NR_mmap, &args);
}
#define sys_mmap sys_mmap
static __attribute__((unused))
pid_t sys_fork(void)
{
return my_syscall5(__NR_clone, 0, SIGCHLD, 0, 0, 0);
}
#define sys_fork sys_fork
#endif /* _NOLIBC_ARCH_S390_H */

2
tools/include/nolibc/sys.h
View file

@ -336,6 +336,7 @@ void exit(int status)
* pid_t fork(void);
*/
#ifndef sys_fork
static __attribute__((unused))
pid_t sys_fork(void)
{
@ -351,6 +352,7 @@ pid_t sys_fork(void)
#error Neither __NR_clone nor __NR_fork defined, cannot implement sys_fork()
#endif
}
#endif
static __attribute__((unused))
pid_t fork(void)