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Toolchain: Add aligned allocation support to libc++

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Now that we have `_aligned_malloc` and `_aligned_free`, we can finally
enable C++17 aligned allocation support.
This commit is contained in:
Daniel Bertalan 2021-11-06 12:08:47 +01:00 committed by Linus Groh
parent 40e7ac9967
commit 061fa8a1ca
Notes: sideshowbarker 2024-07-18 22:57:59 +09:00 
Author: https://github.com/BertalanD
Commit: https://github.com/SerenityOS/serenity/commit/061fa8a1ca2
Pull-request: https://github.com/SerenityOS/serenity/pull/10817
Reviewed-by: https://github.com/linusg
Reviewed-by: https://github.com/timschumi ✅
1 changed files with 24 additions and 11 deletions
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35
Toolchain/Patches/llvm.patch
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@ -555,19 +555,10 @@ index ad2820b32..deaa2c380 100644
if (EXISTS "${LLVM_CMAKE_PATH}")
list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
diff --git a/libcxx/include/__config b/libcxx/include/__config
index 97e33f315..bfb221230 100644
index 97e33f315..179bd2a67 100644
--- a/libcxx/include/__config
+++ b/libcxx/include/__config
@@ -958,6 +958,8 @@ typedef unsigned int char32_t;
# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
#elif defined(__MVS__)
# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
+#elif defined(__serenity__) && !defined(KERNEL)
+# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
#endif
#if defined(__APPLE__)
@@ -1148,6 +1150,7 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
@@ -1148,6 +1148,7 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
defined(__sun__) || \
defined(__MVS__) || \
defined(_AIX) || \
@ -645,6 +636,28 @@ index 8e584005d..f29f3453e 100644
# define _LIBCPP_HAS_CATOPEN 1
# include <nl_types.h>
# endif
diff --git a/libcxx/include/new b/libcxx/include/new
index aefc08c16..7ee71d16b 100644
--- a/libcxx/include/new
+++ b/libcxx/include/new
@@ -310,7 +310,7 @@ inline _LIBCPP_INLINE_VISIBILITY void __libcpp_deallocate_unsized(void* __ptr, s
// Returns the allocated memory, or `nullptr` on failure.
inline _LIBCPP_INLINE_VISIBILITY
void* __libcpp_aligned_alloc(std::size_t __alignment, std::size_t __size) {
-#if defined(_LIBCPP_MSVCRT_LIKE)
+#if defined(_LIBCPP_MSVCRT_LIKE) || (defined(__serenity__) && !defined(KERNEL))
return ::_aligned_malloc(__size, __alignment);
#else
void* __result = nullptr;
@@ -322,7 +322,7 @@ void* __libcpp_aligned_alloc(std::size_t __alignment, std::size_t __size) {
inline _LIBCPP_INLINE_VISIBILITY
void __libcpp_aligned_free(void* __ptr) {
-#if defined(_LIBCPP_MSVCRT_LIKE)
+#if defined(_LIBCPP_MSVCRT_LIKE) || (defined(__serenity__) && !defined(KERNEL))
::_aligned_free(__ptr);
#else
::free(__ptr);
diff --git a/libcxx/src/include/config_elast.h b/libcxx/src/include/config_elast.h
index 7880c733f..87b25cf42 100644
--- a/libcxx/src/include/config_elast.h