1 files changed, 92 insertions, 0 deletions
diff --git a/lib/libc/include/stdarg.h b/lib/libc/include/stdarg.h
new file mode 100644
index 0000000..dc75475
--- /dev/null
+++ b/lib/libc/include/stdarg.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _STDARG_H
+#define _STDARG_H 1
+
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L
+#define __STDC_VERSION_STDARG_H__ 202311L
+#endif
+
+/* Determine which definitions are needed */
+#if !defined(__need___va_list) && !defined(__need_va_list) && \
+    !defined(__need_va_arg) &&                                \
+    !defined(__need___va_copy) && !defined(__need_va_copy)
+#define __need___va_list
+#define __need_va_list
+#define __need_va_arg
+#define __need___va_copy
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || (defined(__cplusplus) && __cplusplus >= 201103L)
+#define __need_va_copy
+#endif
+#endif
+
+/* __gnuc_va_list type */
+#ifdef __need___va_list
+#ifndef __GNUC_VA_LIST
+#define __GNUC_VA_LIST
+typedef __builtin_va_list __gnuc_va_list;
+#endif /* !__GNUC_VA_LIST */
+#undef __need___va_list
+#endif /* __need___va_list */
+
+/* va_list type */
+#ifdef __need_va_list
+#ifndef _VA_LIST
+#define _VA_LIST
+typedef __builtin_va_list va_list;
+#endif /* !_VA_LIST */
+#undef __need_va_list
+#endif /* __need_va_list */
+
+/* va_start(), va_end(), and va_arg() macros */
+#ifdef __need_va_arg
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L
+#define va_start(ap, ...)    __builtin_va_start(ap, 0)
+#else
+#define va_start(ap, arg)    __builtin_va_start(ap, arg)
+#endif
+#define va_end(ap)           __builtin_va_end(ap)
+#define va_arg(ap, type)     __builtin_va_arg(ap, type)
+#undef __need_va_arg
+#endif /* __need_va_arg */
+
+/* __va_copy() macro */
+#ifdef __need___va_copy
+#define __va_copy(dest, src) __builtin_va_copy(dest, src)
+#undef __need___va_copy
+#endif /* __need___va_copy */
+
+/* va_copy() macro */
+#ifdef __need_va_copy
+#define va_copy(dest, src)   __builtin_va_copy(dest, src)
+#undef __need_va_copy
+#endif /* __need_va_copy */
+
+#endif /* !_STDARG_H */