From 0f30d227497418c6d3bef7d52244407e30454504 Mon Sep 17 00:00:00 2001
From: Kacper <kacper@mail.openlinux.dev>
Date: Mon, 22 Dec 2025 23:27:56 +0100
Subject: Added c11 threads, fixed some locks and add *_unlocked functions

---
 lib/libc/internal/util/futex.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 lib/libc/internal/util/futex.c

(limited to 'lib/libc/internal/util/futex.c')

diff --git a/lib/libc/internal/util/futex.c b/lib/libc/internal/util/futex.c
new file mode 100644
index 00000000..2f9872a0
--- /dev/null
+++ b/lib/libc/internal/util/futex.c
@@ -0,0 +1,13 @@
+#include <linux/futex.h>
+#include <syscall.h>
+
+int __futex_wait(volatile int *uaddr, int val)
+{
+	return syscall(futex, uaddr, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, val, 0, 0, 0);
+}
+
+int __futex_wake(volatile int *uaddr, int n)
+{
+	/* futex(uaddr, FUTEX_WAKE, val=n, ...) */
+	return syscall(futex, uaddr, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, n, 0, 0, 0);
+}
-- 
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