1 files changed, 52 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/lm32/clone.S b/libc/sysdeps/linux/lm32/clone.S
new file mode 100644
index 000000000..adc8b1a36
--- /dev/null
+++ b/libc/sysdeps/linux/lm32/clone.S
@@ -0,0 +1,52 @@
+#include <features.h>
+#include <sys/syscall.h>
+#define _ERRNO_H    1
+#include <bits/errno.h>
+
+#ifdef __NR_clone
+
+.text
+.global clone
+.type clone,@function
+.align 4
+
+clone:
+	be	r1, r0, 2f
+	be	r2, r0, 2f
+
+	mvi	r8, __NR_clone
+	scall
+
+	mvi	r3, -4095
+	bgeu	r1, r3, 1f
+
+	be      r1, r0, __thread_start
+
+	ret
+
+__thread_start:
+	mvi	fp, 0
+	call	r2
+
+	calli HIDDEN_JUMPTARGET(_exit)
+
+    /* Stop the unstoppable.  */
+9:
+	bi      9b
+
+2:
+	mvi     r1, -EINVAL
+1:
+	addi	sp, sp, -8
+	sw	(sp+4), ra
+	sw	(sp+8), r1
+	calli   __errno_location
+ 	lw	r2, (sp+8)
+	lw	ra, (sp+4)
+	sub	r2, r0, r2
+	sw      (r1+0), r2
+	mvi     r1, -1
+	addi	sp, sp, 8
+	ret
+
+#endif /* __NR_clone */