LibC+LibELF: Move getauxval and AT_* flags to sys/auxv.h

1 files changed, 25 insertions, 0 deletions

diff --git a/Userland/Libraries/LibC/sys/auxv.cpp b/Userland/Libraries/LibC/sys/auxv.cpp
new file mode 100644
index 0000000000..38323df9f6
--- /dev/null
+++ b/Userland/Libraries/LibC/sys/auxv.cpp
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <errno.h>
+#include <sys/auxv.h>
+#include <sys/internals.h>
+
+extern "C" {
+
+long getauxval(long type)
+{
+    errno = 0;
+
+    auxv_t* auxvp = (auxv_t*)__auxiliary_vector;
+    for (; auxvp->a_type != AT_NULL; ++auxvp) {
+        if (auxvp->a_type == type)
+            return auxvp->a_un.a_val;
+    }
+    errno = ENOENT;
+    return 0;
+}
+}