serenity/Toolchain/Patches/llvm/0005-libcxx-Add-support-for-SerenityOS.patch
Dan Klishch 4b70bff39a Toolchain: Update LLVM to 19.1.0
In addition to being rebased, LLVM driver no longer ever tries to link
crti.o, crtn.o, or crt0_shared.o. The code that handles -pie / -static /
-shared flags has been simplified as per MaskRay's suggestion (I made
changes similar to llvm/llvm-project@ae623d16). Tests have been updated
to match the current behavior of the driver. Note, however, that I
didn't run them with non-default CLANG_DEFAULT_* options.

The commit also removes Daniel's
-fvisibility-inlines-hidden-function-templates patch since this
functionality was never actually used and I feel like such features
should either live in upstream or be deleted.
2024-10-02 21:42:33 -04:00

127 lines
5.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Bertalan <dani@danielbertalan.dev>
Date: Thu, 14 Apr 2022 10:17:13 +0200
Subject: [PATCH] [libcxx] Add support for SerenityOS
This commit teaches libc++ about what features are available in our
LibC, namely:
* We do not have locale support, so no-op shims should be used in place
of the C locale API.
* The number of errno constants defined by us is given by the value of
the `ELAST` macro.
* Multithreading is implemented though the pthread library.
* Use libc++'s builtin character type table instead of the one provided
by LibC as there's a lot of extra porting work to convince the rest of
locale.cpp to use our character type table properly.
---
libcxx/include/CMakeLists.txt | 1 +
libcxx/include/__config | 5 +++--
libcxx/include/__locale_dir/locale_base_api.h | 2 ++
.../__locale_dir/locale_base_api/serenity.h | 22 +++++++++++++++++++
libcxx/include/locale | 2 +-
libcxx/src/include/config_elast.h | 2 ++
6 files changed, 31 insertions(+), 3 deletions(-)
create mode 100644 libcxx/include/__locale_dir/locale_base_api/serenity.h
diff --git a/libcxx/include/CMakeLists.txt b/libcxx/include/CMakeLists.txt
index 32579272858a..016163984660 100644
--- a/libcxx/include/CMakeLists.txt
+++ b/libcxx/include/CMakeLists.txt
@@ -491,6 +491,7 @@ set(files
__locale_dir/locale_base_api/musl.h
__locale_dir/locale_base_api/newlib.h
__locale_dir/locale_base_api/openbsd.h
+ __locale_dir/locale_base_api/serenity.h
__locale_dir/locale_base_api/win32.h
__math/abs.h
__math/copysign.h
diff --git a/libcxx/include/__config b/libcxx/include/__config
index 661af5be3c22..634cabbbbefd 100644
--- a/libcxx/include/__config
+++ b/libcxx/include/__config
@@ -817,7 +817,8 @@ typedef __char32_t char32_t;
defined(__APPLE__) || \
defined(__MVS__) || \
defined(_AIX) || \
- defined(__EMSCRIPTEN__)
+ defined(__EMSCRIPTEN__) || \
+ defined(__serenity__)
// clang-format on
# define _LIBCPP_HAS_THREAD_API_PTHREAD
# elif defined(__Fuchsia__)
@@ -890,7 +891,7 @@ typedef __char32_t char32_t;
# endif
# if defined(__BIONIC__) || defined(__NuttX__) || defined(__Fuchsia__) || defined(__wasi__) || \
- defined(_LIBCPP_HAS_MUSL_LIBC) || defined(__OpenBSD__)
+ defined(_LIBCPP_HAS_MUSL_LIBC) || defined(__OpenBSD__) || defined(__serenity__)
# define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE
# endif
diff --git a/libcxx/include/__locale_dir/locale_base_api.h b/libcxx/include/__locale_dir/locale_base_api.h
index 8c000c558c52..bb5745019fc5 100644
--- a/libcxx/include/__locale_dir/locale_base_api.h
+++ b/libcxx/include/__locale_dir/locale_base_api.h
@@ -25,6 +25,8 @@
# include <__locale_dir/locale_base_api/fuchsia.h>
#elif defined(__wasi__) || defined(_LIBCPP_HAS_MUSL_LIBC)
# include <__locale_dir/locale_base_api/musl.h>
+#elif defined(__serenity__)
+# include <__locale_dir/locale_base_api/serenity.h>
#elif defined(__APPLE__) || defined(__FreeBSD__)
# include <xlocale.h>
#endif
diff --git a/libcxx/include/__locale_dir/locale_base_api/serenity.h b/libcxx/include/__locale_dir/locale_base_api/serenity.h
new file mode 100644
index 000000000000..4644fca4ae95
--- /dev/null
+++ b/libcxx/include/__locale_dir/locale_base_api/serenity.h
@@ -0,0 +1,22 @@
+//===----------------------------------------------------------------------===//
+//
+// 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 _LIBCPP___LOCALE_LOCALE_BASE_API_SERENITY_H
+#define _LIBCPP___LOCALE_LOCALE_BASE_API_SERENITY_H
+
+#include <stddef.h>
+
+#include <__support/xlocale/__nop_locale_mgmt.h>
+#include <__support/xlocale/__posix_l_fallback.h>
+#include <__support/xlocale/__strtonum_fallback.h>
+#include <clocale>
+#include <cstdlib>
+#include <ctype.h>
+#include <cwctype>
+
+#endif // _LIBCPP___LOCALE_LOCALE_BASE_API_SERENITY_H
diff --git a/libcxx/include/locale b/libcxx/include/locale
index 573910a85bef..ae19777a5346 100644
--- a/libcxx/include/locale
+++ b/libcxx/include/locale
@@ -220,7 +220,7 @@ template <class charT> class messages_byname;
# if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
// Most unix variants have catopen. These are the specific ones that don't.
-# if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) && !defined(__EMSCRIPTEN__)
+# if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) && !defined(__EMSCRIPTEN__) && !defined(__serenity__)
# define _LIBCPP_HAS_CATOPEN 1
# include <nl_types.h>
# endif
diff --git a/libcxx/src/include/config_elast.h b/libcxx/src/include/config_elast.h
index 899e124ad261..11d930bc8a3c 100644
--- a/libcxx/src/include/config_elast.h
+++ b/libcxx/src/include/config_elast.h
@@ -35,6 +35,8 @@
# define _LIBCPP_ELAST 4095
#elif defined(__APPLE__)
// No _LIBCPP_ELAST needed on Apple
+#elif defined(__serenity__)
+// No _LIBCPP_ELAST needed on SerenityOS
#elif defined(__MVS__)
# define _LIBCPP_ELAST 1160
#elif defined(_LIBCPP_MSVCRT_LIKE)