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buildtools / third_party / libc++ / __config_site [blame]

#ifndef _LIBCPP_CONFIG_SITE
#define _LIBCPP_CONFIG_SITE

// Dynamic libc++ configuration macros are in
// build/config/libc++:runtime_library. This file only has defines
// that are constant across platforms, or easily set via preprocessor checks.
// Things that are set depending on GN args are not here.

// We set a custom _LIBCPP_ABI_NAMESPACE for the following reasons:
//
// 1. When libcxx_is_shared is true, symbols from libc++.so are exported for all
//    DSOs to use.  If the system libc++ gets loaded (indirectly through a
//    a system library), then it will conflict with our libc++.so.
// 2. The default value of _LIBCPP_ABI_NAMESPACE is the string
//    "_LIBCPP_ABI_NAMESPACE". This contributes to an increase in binary size;
//    on Windows, the increase is great enough that we go above the 4GB size
//    limit for PDBs (https://crbug.com/1327710#c5). To fix this, we set
//    _LIBCPP_ABI_NAMESPACE to a shorter value.
#define _LIBCPP_ABI_NAMESPACE __Cr

#define _LIBCPP_ABI_VERSION 2

#define _LIBCPP_ABI_FORCE_ITANIUM 0
#define _LIBCPP_ABI_FORCE_MICROSOFT 0
#define _LIBCPP_HAS_THREADS 1
#define _LIBCPP_HAS_MONOTONIC_CLOCK 1
#define _LIBCPP_HAS_TERMINAL 1
#define _LIBCPP_HAS_MUSL_LIBC 0

#ifdef _WIN32
#define _LIBCPP_HAS_THREAD_API_PTHREAD 0
#define _LIBCPP_HAS_THREAD_API_EXTERNAL 0
#define _LIBCPP_HAS_THREAD_API_WIN32 1
#else
#define _LIBCPP_HAS_THREAD_API_PTHREAD 1
#define _LIBCPP_HAS_THREAD_API_EXTERNAL 0
#define _LIBCPP_HAS_THREAD_API_WIN32 0
#endif

/* #undef _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS */
#define _LIBCPP_HAS_VENDOR_AVAILABILITY_ANNOTATIONS 0
/* #undef _LIBCPP_NO_VCRUNTIME */
/* #undef _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION */
#define _LIBCPP_HAS_FILESYSTEM 1
#define _LIBCPP_HAS_RANDOM_DEVICE 1
#define _LIBCPP_HAS_LOCALIZATION 1
#define _LIBCPP_HAS_UNICODE 1
#define _LIBCPP_HAS_WIDE_CHARACTERS 1

// TODO(thakis): Is this right?
/* #undef _LIBCPP_HAS_NO_STD_MODULES */

// TODO(thakis): Is this right?
#define _LIBCPP_HAS_TIME_ZONE_DATABASE 1

// _LIBCPP_INSTRUMENTED_WITH_ASAN is set in build/config/c++/BUILD.gn.

// PSTL backends
/* #undef _LIBCPP_PSTL_BACKEND_SERIAL */
#if defined(__APPLE__)
#define _LIBCPP_PSTL_BACKEND_LIBDISPATCH
#else
#define _LIBCPP_PSTL_BACKEND_STD_THREAD
#endif

// Settings below aren't part of __config_site upstream.
// We set them here since we want them to take effect everywhere,
// unconditionally.

// Prevent libc++ from embedding linker flags to try to automatically link
// against its runtime library. This is unnecessary with our build system,
// and can also result in build failures if libc++'s name for a library
// does not match ours.  Only has an effect on Windows.
#define _LIBCPP_NO_AUTO_LINK

// See https://libcxx.llvm.org/DesignDocs/HeaderRemovalPolicy.html
#define _LIBCPP_REMOVE_TRANSITIVE_INCLUDES

// Don't add ABI tags to libc++ symbols. ABI tags increase mangled name sizes.
// This only exists to allow multiple // libc++ versions to be linked into a
// binary, which Chrome doesn't do.
#define _LIBCPP_NO_ABI_TAG

// Explicitly define  _LIBCPP_VERBOSE_ABORT(...) to call the termination
// function because by default, this macro will does not call the verbose
// termination function on Apple platforms.
#define _LIBCPP_VERBOSE_ABORT(...) ::std::__libcpp_verbose_abort(__VA_ARGS__)

// Disable header include for parallel algorithms.
#define _LIBCPP_HAS_NO_INCOMPLETE_PSTL

#endif // _LIBCPP_CONFIG_SITE