From 142662f84c5ead2fa123eb70fd225ef52c89a18c Mon Sep 17 00:00:00 2001
From: Max Wash <max@doorstuck.net>
Date: Fri, 24 Jul 2020 10:50:40 +0100
Subject: [PATCH] Stub implementations of some wchar functions

---
 CMakeLists.txt                |  2 +-
 photon/libc/include/locale.h  |  4 ++++
 photon/libc/include/stdlib.h  |  2 ++
 photon/libc/include/wchar.h   | 14 ++++++++++++++
 photon/libc/wchar/fwide.c     |  6 ++++++
 photon/libc/wchar/vfwprintf.c |  6 ++++++
 photon/libc/wchar/vswprintf.c |  6 ++++++
 7 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 photon/libc/include/locale.h
 create mode 100644 photon/libc/include/wchar.h
 create mode 100644 photon/libc/wchar/fwide.c
 create mode 100644 photon/libc/wchar/vfwprintf.c
 create mode 100644 photon/libc/wchar/vswprintf.c

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 024f37c..7b61fc8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,7 @@ set(CMAKE_EXE_LINKER_FLAGS
 
 set(malloc_impl dlmalloc)
 set(photon_libc_sources "")
-set(generic_dirs string stdio stdlib errno internal ctype)
+set(generic_dirs string stdio stdlib errno internal ctype wchar)
 
 message(STATUS "Memory allocator: ${malloc_impl}")
 
diff --git a/photon/libc/include/locale.h b/photon/libc/include/locale.h
new file mode 100644
index 0000000..c313dda
--- /dev/null
+++ b/photon/libc/include/locale.h
@@ -0,0 +1,4 @@
+#ifndef LOCALE_H_
+#define LOCALE_H_
+
+#endif
diff --git a/photon/libc/include/stdlib.h b/photon/libc/include/stdlib.h
index a0d4ac7..afeb2e0 100644
--- a/photon/libc/include/stdlib.h
+++ b/photon/libc/include/stdlib.h
@@ -10,6 +10,8 @@ extern "C" {
 extern _Noreturn void abort(void);
 extern _Noreturn void exit(int code);
 extern void *malloc(size_t sz);
+extern void *realloc(void *ptr, size_t sz);
+extern void *calloc(size_t n, size_t sz);
 extern void free(void *ptr);
 
 extern int atoi(const char *str);
diff --git a/photon/libc/include/wchar.h b/photon/libc/include/wchar.h
new file mode 100644
index 0000000..b779b6f
--- /dev/null
+++ b/photon/libc/include/wchar.h
@@ -0,0 +1,14 @@
+#ifndef WCHAR_H_
+#define WCHAR_H_
+
+#include <stdio.h>
+#include <stdarg.h>
+
+typedef unsigned int wchar_t;
+
+extern int fwide(FILE *fp, int mode);
+
+extern int vfwprintf(FILE *stream, const wchar_t *format, va_list arg);
+extern int vswprintf(wchar_t *buf, size_t len, const wchar_t *format, va_list arg);
+
+#endif
diff --git a/photon/libc/wchar/fwide.c b/photon/libc/wchar/fwide.c
new file mode 100644
index 0000000..34b7872
--- /dev/null
+++ b/photon/libc/wchar/fwide.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int fwide(FILE *fp, int mode)
+{
+    return 0;
+}
diff --git a/photon/libc/wchar/vfwprintf.c b/photon/libc/wchar/vfwprintf.c
new file mode 100644
index 0000000..348d01c
--- /dev/null
+++ b/photon/libc/wchar/vfwprintf.c
@@ -0,0 +1,6 @@
+#include <wchar.h>
+
+int vfwprintf(FILE *fp, const wchar_t *format, va_list arg)
+{
+    return 0;
+}
diff --git a/photon/libc/wchar/vswprintf.c b/photon/libc/wchar/vswprintf.c
new file mode 100644
index 0000000..9229c0f
--- /dev/null
+++ b/photon/libc/wchar/vswprintf.c
@@ -0,0 +1,6 @@
+#include <wchar.h>
+
+int vswprintf(wchar_t *buf, size_t len, const wchar_t *format, va_list arg)
+{
+    return 0;
+}