diff options
| author | Thomas Weißschuh <linux@weissschuh.net> | 2023-04-15 23:28:47 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-06-09 11:46:07 -0700 |
| commit | 404fa87c0eafbd420c2a016b964facb92250ae85 (patch) | |
| tree | 1fc089aaf82c8dc2507a86e12e4787235daf6bda | |
| parent | f2fa6b384c67feebd367fa2cb45254a79fd37312 (diff) | |
tools/nolibc: s390: provide custom implementation for sys_fork
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>
| -rw-r--r-- | tools/include/nolibc/arch-s390.h | 9 | ||||
| -rw-r--r-- | tools/include/nolibc/sys.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/tools/include/nolibc/arch-s390.h b/tools/include/nolibc/arch-s390.h index c62ee2472407..a738e7f3f8e8 100644 --- a/tools/include/nolibc/arch-s390.h +++ b/tools/include/nolibc/arch-s390.h @@ -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 */ diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h index 1b9b91cd8b57..60dffb1cbf96 100644 --- a/tools/include/nolibc/sys.h +++ b/tools/include/nolibc/sys.h @@ -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) |