From bf6de71c1c65e6bb86a35086c1e034fd43a4d5ae Mon Sep 17 00:00:00 2001
From: Joseph Huber <huberjn@outlook.com>
Date: Mon, 15 Jul 2024 22:21:17 -0500
Subject: [PATCH] [libc] Enable 'wchar.h' for the GPU (#98973)

Summary:
This file is not really well populated, but is required for some targets
to configure. Enable it on the GPU for now.

Test Plan:

Reviewers:

Subscribers:

Tasks:

Tags:


Differential Revision: https://phabricator.intern.facebook.com/D60251548
---
 libc/config/gpu/entrypoints.txt | 3 +++
 libc/config/gpu/headers.txt     | 2 ++
 libc/include/uchar.h.def        | 1 +
 libc/include/wchar.h.def        | 2 ++
 4 files changed, 8 insertions(+)

diff --git a/libc/config/gpu/entrypoints.txt b/libc/config/gpu/entrypoints.txt
index 624ac2715579f1..63228216c85ec7 100644
--- a/libc/config/gpu/entrypoints.txt
+++ b/libc/config/gpu/entrypoints.txt
@@ -218,6 +218,9 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.time.clock
     libc.src.time.nanosleep
 
+    # wchar.h entrypoints
+    libc.src.wchar.wctob
+
     # gpu/rpc.h entrypoints
     libc.src.gpu.rpc_host_call
     libc.src.gpu.rpc_fprintf
diff --git a/libc/config/gpu/headers.txt b/libc/config/gpu/headers.txt
index dd16938da8a447..1d4038d5eb45a4 100644
--- a/libc/config/gpu/headers.txt
+++ b/libc/config/gpu/headers.txt
@@ -12,6 +12,8 @@ set(TARGET_PUBLIC_HEADERS
     libc.include.errno
     libc.include.stdlib
     libc.include.stdio
+    libc.include.wchar
+    libc.include.uchar
 
     # Header for RPC extensions
     libc.include.gpu_rpc
diff --git a/libc/include/uchar.h.def b/libc/include/uchar.h.def
index 31b7fcb73ded6a..83400f4aba2eef 100644
--- a/libc/include/uchar.h.def
+++ b/libc/include/uchar.h.def
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_UCHAR_H
 
 #include "__llvm-libc-common.h"
+#include "llvm-libc-types/mbstate_t.h"
 
 %%public_api()
 
diff --git a/libc/include/wchar.h.def b/libc/include/wchar.h.def
index 4c25de700d6063..d0de1a6762a392 100644
--- a/libc/include/wchar.h.def
+++ b/libc/include/wchar.h.def
@@ -11,6 +11,8 @@
 
 #include "__llvm-libc-common.h"
 #include "llvm-libc-macros/wchar-macros.h"
+#include "llvm-libc-types/wint_t.h"
+#include "llvm-libc-types/mbstate_t.h"
 
 %%public_api()