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rc3, forward port testing improvements, rebase pre-C11 fallbacks (#129)
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recipe/patches/0004-Revert-libc-Remove-workaround-for-C11-features-on-co.patch
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| From 428205712f3ebd4efb7b0ea71d9fa45e0b28fece Mon Sep 17 00:00:00 2001 | ||
| From: "H. Vetinari" <h.vetinari@gmx.com> | ||
| Date: Wed, 8 Feb 2023 16:44:15 +1100 | ||
| Subject: [PATCH 4/4] Revert "[libc++] Remove workaround for C11 features on | ||
| compilers that don't support using_if_exists" | ||
|
|
||
| This reverts commit 21f73d5826fb5024a27eaacafadfa316f58949c5. | ||
| --- | ||
| libcxx/include/__config | 66 +++++++++++++++++++++++++++++++++++++++++ | ||
| libcxx/include/cstdlib | 4 +-- | ||
| libcxx/include/ctime | 18 +++++++++-- | ||
| 3 files changed, 84 insertions(+), 4 deletions(-) | ||
|
|
||
| diff --git a/libcxx/include/__config b/libcxx/include/__config | ||
| index 9759d3b9e8e0..9a27abe3367b 100644 | ||
| --- a/libcxx/include/__config | ||
| +++ b/libcxx/include/__config | ||
| @@ -556,6 +556,72 @@ | ||
| # define _LIBCPP_NO_CFI | ||
| # endif | ||
|
|
||
| +// If the compiler supports using_if_exists, pretend we have those functions and they'll | ||
| +// be picked up if the C library provides them. | ||
| +// | ||
| +// TODO: Once we drop support for Clang 12, we can assume the compiler supports using_if_exists | ||
| +// for platforms that don't have a conforming C11 library, so we can drop this whole thing. | ||
| +# if __has_attribute(using_if_exists) | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# define _LIBCPP_HAS_QUICK_EXIT | ||
| +# define _LIBCPP_HAS_ALIGNED_ALLOC | ||
| +# else | ||
| +# if (defined(__ISO_C_VISIBLE) && (__ISO_C_VISIBLE >= 2011)) || __cplusplus >= 201103L | ||
| +# if defined(__FreeBSD__) | ||
| +# define _LIBCPP_HAS_ALIGNED_ALLOC | ||
| +# define _LIBCPP_HAS_QUICK_EXIT | ||
| +# if __FreeBSD_version >= 1300064 || \ | ||
| + (__FreeBSD_version >= 1201504 && __FreeBSD_version < 1300000) | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# endif | ||
| +# elif defined(__BIONIC__) | ||
| +# if __ANDROID_API__ >= 21 | ||
| +# define _LIBCPP_HAS_QUICK_EXIT | ||
| +# endif | ||
| +# if __ANDROID_API__ >= 28 | ||
| +# define _LIBCPP_HAS_ALIGNED_ALLOC | ||
| +# endif | ||
| +# if __ANDROID_API__ >= 29 | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# endif | ||
| +# elif defined(__Fuchsia__) || defined(__wasi__) || defined(__NetBSD__) | ||
| +# define _LIBCPP_HAS_ALIGNED_ALLOC | ||
| +# define _LIBCPP_HAS_QUICK_EXIT | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# elif defined(__OpenBSD__) | ||
| +# define _LIBCPP_HAS_ALIGNED_ALLOC | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# elif defined(__linux__) | ||
| +# if !defined(_LIBCPP_HAS_MUSL_LIBC) | ||
| +# if _LIBCPP_GLIBC_PREREQ(2, 15) || defined(__BIONIC__) | ||
| +# define _LIBCPP_HAS_QUICK_EXIT | ||
| +# endif | ||
| +# if _LIBCPP_GLIBC_PREREQ(2, 17) | ||
| +# define _LIBCPP_HAS_ALIGNED_ALLOC | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# endif | ||
| +# else // defined(_LIBCPP_HAS_MUSL_LIBC) | ||
| +# define _LIBCPP_HAS_ALIGNED_ALLOC | ||
| +# define _LIBCPP_HAS_QUICK_EXIT | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# endif | ||
| +# elif defined(_LIBCPP_MSVCRT) | ||
| + // Using Microsoft's C Runtime library, not MinGW | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# elif defined(__APPLE__) | ||
| + // timespec_get and aligned_alloc were introduced in macOS 10.15 and | ||
| + // aligned releases | ||
| +# if ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 101500) || \ | ||
| + (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 130000) || \ | ||
| + (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ >= 130000) || \ | ||
| + (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ >= 60000)) | ||
| +# define _LIBCPP_HAS_ALIGNED_ALLOC | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET | ||
| +# endif | ||
| +# endif // __APPLE__ | ||
| +# endif | ||
| +# endif // __has_attribute(using_if_exists) | ||
| + | ||
| # ifndef _LIBCPP_CXX03_LANG | ||
|
|
||
| # define _LIBCPP_ALIGNOF(_Tp) alignof(_Tp) | ||
| diff --git a/libcxx/include/cstdlib b/libcxx/include/cstdlib | ||
| index ab2c159c7259..44a6f6a5dc36 100644 | ||
| --- a/libcxx/include/cstdlib | ||
| +++ b/libcxx/include/cstdlib | ||
| @@ -140,11 +140,11 @@ using ::mbtowc _LIBCPP_USING_IF_EXISTS; | ||
| using ::wctomb _LIBCPP_USING_IF_EXISTS; | ||
| using ::mbstowcs _LIBCPP_USING_IF_EXISTS; | ||
| using ::wcstombs _LIBCPP_USING_IF_EXISTS; | ||
| -#if !defined(_LIBCPP_CXX03_LANG) | ||
| +#if !defined(_LIBCPP_CXX03_LANG) && defined(_LIBCPP_HAS_QUICK_EXIT) | ||
| using ::at_quick_exit _LIBCPP_USING_IF_EXISTS; | ||
| using ::quick_exit _LIBCPP_USING_IF_EXISTS; | ||
| #endif | ||
| -#if _LIBCPP_STD_VER >= 17 | ||
| +#if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_HAS_ALIGNED_ALLOC) | ||
| using ::aligned_alloc _LIBCPP_USING_IF_EXISTS; | ||
| #endif | ||
|
|
||
| diff --git a/libcxx/include/ctime b/libcxx/include/ctime | ||
| index b61e19d6446d..6b48da7a7e4b 100644 | ||
| --- a/libcxx/include/ctime | ||
| +++ b/libcxx/include/ctime | ||
| @@ -60,13 +60,27 @@ int timespec_get( struct timespec *ts, int base); // C++17 | ||
| # pragma GCC system_header | ||
| #endif | ||
|
|
||
| +// FIXME: | ||
| +// Apple SDKs don't define ::timespec_get unconditionally in C++ mode. This | ||
| +// should be fixed in future SDKs, but for the time being we need to avoid | ||
| +// trying to use that declaration when the SDK doesn't provide it. Note that | ||
| +// we're detecting this here instead of in <__config> because we can't include | ||
| +// system headers from <__config>, since it leads to circular module dependencies. | ||
| +// This is also meant to be a very temporary workaround until the SDKs are fixed. | ||
| +#if defined(__APPLE__) && !__has_attribute(using_if_exists) | ||
| +# include <sys/cdefs.h> | ||
| +# if defined(_LIBCPP_HAS_TIMESPEC_GET) && (__DARWIN_C_LEVEL < __DARWIN_C_FULL) | ||
| +# define _LIBCPP_HAS_TIMESPEC_GET_NOT_ACTUALLY_PROVIDED | ||
| +# endif | ||
| +#endif | ||
| + | ||
| _LIBCPP_BEGIN_NAMESPACE_STD | ||
|
|
||
| using ::clock_t _LIBCPP_USING_IF_EXISTS; | ||
| using ::size_t _LIBCPP_USING_IF_EXISTS; | ||
| using ::time_t _LIBCPP_USING_IF_EXISTS; | ||
| using ::tm _LIBCPP_USING_IF_EXISTS; | ||
| -#if _LIBCPP_STD_VER >= 17 | ||
| +#if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_HAS_TIMESPEC_GET) | ||
| using ::timespec _LIBCPP_USING_IF_EXISTS; | ||
| #endif | ||
| using ::clock _LIBCPP_USING_IF_EXISTS; | ||
| @@ -78,7 +92,7 @@ using ::ctime _LIBCPP_USING_IF_EXISTS; | ||
| using ::gmtime _LIBCPP_USING_IF_EXISTS; | ||
| using ::localtime _LIBCPP_USING_IF_EXISTS; | ||
| using ::strftime _LIBCPP_USING_IF_EXISTS; | ||
| -#if _LIBCPP_STD_VER >= 17 | ||
| +#if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_HAS_TIMESPEC_GET) && !defined(_LIBCPP_HAS_TIMESPEC_GET_NOT_ACTUALLY_PROVIDED) | ||
| using ::timespec_get _LIBCPP_USING_IF_EXISTS; | ||
| #endif | ||
|
|