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-rw-r--r--tools/include/nolibc/nolibc.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 9209da89044a..fdd5524e0e54 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -271,6 +271,8 @@ struct stat {
#define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
#define WIFEXITED(status) (((status) & 0x7f) == 0)
+/* for SIGCHLD */
+#include <asm/signal.h>
/* Below comes the architecture-specific code. For each architecture, we have
* the syscall declarations and the _start code definition. This is the only
@@ -1529,7 +1531,15 @@ int sys_execve(const char *filename, char *const argv[], char *const envp[])
static __attribute__((unused))
pid_t sys_fork(void)
{
+#ifdef __NR_clone
+ /* note: some archs only have clone() and not fork(). Different archs
+ * have a different API, but most archs have the flags on first arg and
+ * will not use the rest with no other flag.
+ */
+ return my_syscall5(__NR_clone, SIGCHLD, 0, 0, 0, 0);
+#else
return my_syscall0(__NR_fork);
+#endif
}
static __attribute__((unused))