diff options
Diffstat (limited to 'libc/sysdeps/linux/common/fork.c')
| -rw-r--r-- | libc/sysdeps/linux/common/fork.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/fork.c b/libc/sysdeps/linux/common/fork.c index fa1f4affa..b5715c7a0 100644 --- a/libc/sysdeps/linux/common/fork.c +++ b/libc/sysdeps/linux/common/fork.c @@ -9,14 +9,34 @@ #include <sys/syscall.h> -#if defined __NR_fork && defined __ARCH_USE_MMU__ +#if defined __ARCH_USE_MMU__ # include <unistd.h> -# include <cancel.h> +extern __typeof(fork) __libc_fork; +# if defined __NR_fork +# include <cancel.h> +# define __NR___libc_fork __NR_fork _syscall0(pid_t, fork) + +# elif defined __NR_clone && !defined __NR_fork +# include <sys/types.h> +# include <signal.h> +# include <stddef.h> +pid_t fork(void) +{ + pid_t pid = INLINE_SYSCALL(clone, 4, SIGCHLD, NULL, NULL, NULL); + + if (pid < 0) + return -1; + + return pid; +} + +# endif # ifdef __UCLIBC_HAS_THREADS__ strong_alias(fork,__libc_fork) libc_hidden_weak(fork) # else libc_hidden_def(fork) # endif + #endif |