[libc-commits] [libc] Add basic char*_t support for libc (PR #90360)
Fabian Keßler via libc-commits
libc-commits at lists.llvm.org
Sun Apr 28 02:29:27 PDT 2024
https://github.com/Febbe updated https://github.com/llvm/llvm-project/pull/90360
>From c73c973e7767c97d6cd86eab8f7b2874390419e0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20Ke=C3=9Fler?= <fabian_kessler at gmx.de>
Date: Sat, 27 Apr 2024 23:21:01 +0200
Subject: [PATCH] Add basic char*_t support for libc - Define C23 char8_t -
Define C11 char16_t - Define C11 char32_t
Preparation for functions like `mbrtoc8` and `c8rtomb` which are
introduced in C23.
---
libc/config/baremetal/api.td | 7 ++++++-
libc/config/linux/x86_64/headers.txt | 1 +
libc/include/CMakeLists.txt | 3 +++
libc/include/llvm-libc-types/CMakeLists.txt | 3 +++
libc/include/llvm-libc-types/char16_t.h | 17 +++++++++++++++++
libc/include/llvm-libc-types/char32_t.h | 17 +++++++++++++++++
libc/include/llvm-libc-types/char8_t.h | 17 +++++++++++++++++
libc/spec/spec.td | 3 +++
libc/spec/stdc.td | 3 +++
9 files changed, 70 insertions(+), 1 deletion(-)
create mode 100644 libc/include/llvm-libc-types/char16_t.h
create mode 100644 libc/include/llvm-libc-types/char32_t.h
create mode 100644 libc/include/llvm-libc-types/char8_t.h
diff --git a/libc/config/baremetal/api.td b/libc/config/baremetal/api.td
index 25aa06aacb642e..a6547d843c85ee 100644
--- a/libc/config/baremetal/api.td
+++ b/libc/config/baremetal/api.td
@@ -85,5 +85,10 @@ def TimeAPI : PublicAPI<"time.h"> {
}
def UCharAPI : PublicAPI<"uchar.h"> {
- let Types = ["mbstate_t"];
+ let Types = [
+ "mbstate_t",
+ "char8_t",
+ "char16_t",
+ "char32_t",
+ ];
}
diff --git a/libc/config/linux/x86_64/headers.txt b/libc/config/linux/x86_64/headers.txt
index e51c7931942706..44d640b75e2bf7 100644
--- a/libc/config/linux/x86_64/headers.txt
+++ b/libc/config/linux/x86_64/headers.txt
@@ -29,6 +29,7 @@ set(TARGET_PUBLIC_HEADERS
libc.include.time
libc.include.unistd
libc.include.wchar
+ libc.include.uchar
libc.include.arpa_inet
diff --git a/libc/include/CMakeLists.txt b/libc/include/CMakeLists.txt
index aeef46aabfce5c..6dea8e539969d0 100644
--- a/libc/include/CMakeLists.txt
+++ b/libc/include/CMakeLists.txt
@@ -603,6 +603,9 @@ add_gen_header(
DEPENDS
.llvm_libc_common_h
.llvm-libc-types.mbstate_t
+ .llvm-libc-types.char8_t
+ .llvm-libc-types.char16_t
+ .llvm-libc-types.char32_t
)
add_gen_header(
diff --git a/libc/include/llvm-libc-types/CMakeLists.txt b/libc/include/llvm-libc-types/CMakeLists.txt
index 310374fb62ffe0..c8999f3d25f4cd 100644
--- a/libc/include/llvm-libc-types/CMakeLists.txt
+++ b/libc/include/llvm-libc-types/CMakeLists.txt
@@ -90,6 +90,9 @@ add_header(tcflag_t HDR tcflag_t.h)
add_header(struct_termios HDR struct_termios.h DEPENDS .cc_t .speed_t .tcflag_t)
add_header(__getoptargv_t HDR __getoptargv_t.h)
add_header(wchar_t HDR wchar_t.h)
+add_header(char8_t HDR char8_t.h)
+add_header(char16_t HDR char16_t.h)
+add_header(char32_t HDR char32_t.h)
add_header(wint_t HDR wint_t.h)
add_header(sa_family_t HDR sa_family_t.h)
add_header(socklen_t HDR socklen_t.h)
diff --git a/libc/include/llvm-libc-types/char16_t.h b/libc/include/llvm-libc-types/char16_t.h
new file mode 100644
index 00000000000000..59810d0f6e5d85
--- /dev/null
+++ b/libc/include/llvm-libc-types/char16_t.h
@@ -0,0 +1,17 @@
+//===-- Definition of clock_t type ----------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_TYPES_CHAR8_T_H
+#define LLVM_LIBC_TYPES_CHAR8_T_H
+
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
+#include <stdint.h>
+typedef uint_least16_t char16_t;
+#endif
+
+#endif // LLVM_LIBC_TYPES_CHAR8_T_H
\ No newline at end of file
diff --git a/libc/include/llvm-libc-types/char32_t.h b/libc/include/llvm-libc-types/char32_t.h
new file mode 100644
index 00000000000000..5cbd21e78a808a
--- /dev/null
+++ b/libc/include/llvm-libc-types/char32_t.h
@@ -0,0 +1,17 @@
+//===-- Definition of clock_t type ----------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_TYPES_CHAR8_T_H
+#define LLVM_LIBC_TYPES_CHAR8_T_H
+
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
+#include <stdint.h>
+typedef uint_least32_t char32_t;
+#endif
+
+#endif // LLVM_LIBC_TYPES_CHAR8_T_H
\ No newline at end of file
diff --git a/libc/include/llvm-libc-types/char8_t.h b/libc/include/llvm-libc-types/char8_t.h
new file mode 100644
index 00000000000000..5240cdb7003146
--- /dev/null
+++ b/libc/include/llvm-libc-types/char8_t.h
@@ -0,0 +1,17 @@
+//===-- Definition of clock_t type ----------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_TYPES_CHAR8_T_H
+#define LLVM_LIBC_TYPES_CHAR8_T_H
+
+#if !defined(__cplusplus) && defined(__STDC_VERSION__) && \
+ __STDC_VERSION__ >= 202311L
+typedef unsigned char char8_t;
+#endif
+
+#endif // LLVM_LIBC_TYPES_CHAR8_T_H
\ No newline at end of file
diff --git a/libc/spec/spec.td b/libc/spec/spec.td
index 87bf4435e16724..ea8fa4cd373cf3 100644
--- a/libc/spec/spec.td
+++ b/libc/spec/spec.td
@@ -65,6 +65,9 @@ def SizeTType : NamedType<"size_t">;
def SizeTPtr : PtrType<SizeTType>;
def RestrictedSizeTPtr : RestrictedPtrType<SizeTType>;
+def Char8TType : NamedType<"char8_t">;
+def Char16TType : NamedType<"char16_t">;
+def Char32TType : NamedType<"char32_t">;
def WCharType : NamedType<"wchar_t">;
def WIntType : NamedType<"wint_t">;
diff --git a/libc/spec/stdc.td b/libc/spec/stdc.td
index 01aa7c70b3b9df..88758dec643fd4 100644
--- a/libc/spec/stdc.td
+++ b/libc/spec/stdc.td
@@ -1396,6 +1396,9 @@ def StdC : StandardSpec<"stdc"> {
[], // Macros
[ //Types
MBStateTType,
+ Char8TType,
+ Char16TType,
+ Char32TType,
],
[], // Enumerations
[]
More information about the libc-commits
mailing list