1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // Define a bunch of macros that can be used in the tests instead of 10 // implementation defined assumptions: 11 // - locale names 12 // - floating point number string output 13 14 #ifndef PLATFORM_SUPPORT_H 15 #define PLATFORM_SUPPORT_H 16 17 // locale names 18 #ifdef _WIN32 19 // WARNING: Windows does not support UTF-8 codepages. 20 // Locales are "converted" using https://docs.moodle.org/dev/Table_of_locales 21 # define LOCALE_en_US "en-US" 22 # define LOCALE_en_US_UTF_8 "en-US" 23 # define LOCALE_cs_CZ_ISO8859_2 "cs-CZ" 24 # define LOCALE_fr_FR_UTF_8 "fr-FR" 25 # define LOCALE_fr_CA_ISO8859_1 "fr-CA" 26 # define LOCALE_ru_RU_UTF_8 "ru-RU" 27 # define LOCALE_zh_CN_UTF_8 "zh-CN" 28 #elif defined(__CloudABI__) 29 // Timezones are integrated into locales through LC_TIMEZONE_MASK on 30 // CloudABI. LC_ALL_MASK can only be used if a timezone has also been 31 // provided. UTC should be all right. 32 # define LOCALE_en_US "en_US" 33 # define LOCALE_en_US_UTF_8 "en_US.UTF-8@UTC" 34 # define LOCALE_fr_FR_UTF_8 "fr_FR.UTF-8@UTC" 35 # define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO-8859-1@UTC" 36 # define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO-8859-2@UTC" 37 # define LOCALE_ru_RU_UTF_8 "ru_RU.UTF-8@UTC" 38 # define LOCALE_zh_CN_UTF_8 "zh_CN.UTF-8@UTC" 39 #else 40 # define LOCALE_en_US "en_US" 41 # define LOCALE_en_US_UTF_8 "en_US.UTF-8" 42 # define LOCALE_fr_FR_UTF_8 "fr_FR.UTF-8" 43 # ifdef __linux__ 44 # define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO-8859-1" 45 # define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO-8859-2" 46 # else 47 # define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO8859-1" 48 # define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO8859-2" 49 # endif 50 # define LOCALE_ru_RU_UTF_8 "ru_RU.UTF-8" 51 # define LOCALE_zh_CN_UTF_8 "zh_CN.UTF-8" 52 #endif 53 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <codecvt> 57 #include <locale> 58 #include <string> 59 #if defined(_WIN32) 60 # define WIN32_LEAN_AND_MEAN // Reduce overhead of including windows.h 61 # include <io.h> // _mktemp_s 62 # include <windows.h> // MAX_PATH, GetTempPath, GetTempFileName 63 #else 64 # include <unistd.h> // close 65 #endif 66 67 #if defined(_NEWLIB_VERSION) && defined(__STRICT_ANSI__) 68 // Newlib provides this, but in the header it's under __STRICT_ANSI__ 69 extern "C" { 70 int mkstemp(char*); 71 } 72 #endif 73 74 #ifndef __CloudABI__ 75 inline 76 std::string get_temp_file_name() 77 { 78 #if defined(__MINGW32__) 79 char Path[MAX_PATH + 1]; 80 char FN[MAX_PATH + 1]; 81 do { } while (0 == GetTempPath(MAX_PATH+1, Path)); 82 do { } while (0 == GetTempFileName(Path, "libcxx", 0, FN)); 83 return FN; 84 #elif defined(_WIN32) 85 char Name[] = "libcxx.XXXXXX"; 86 if (_mktemp_s(Name, sizeof(Name)) != 0) abort(); 87 return Name; 88 #else 89 std::string Name; 90 int FD = -1; 91 do { 92 Name = "libcxx.XXXXXX"; 93 FD = mkstemp(&Name[0]); 94 if (FD == -1 && errno == EINVAL) { 95 perror("mkstemp"); 96 abort(); 97 } 98 } while (FD == -1); 99 close(FD); 100 return Name; 101 #endif 102 } 103 104 #ifdef _LIBCPP_HAS_OPEN_WITH_WCHAR 105 inline 106 std::wstring get_wide_temp_file_name() 107 { 108 return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t> >().from_bytes( 109 get_temp_file_name()); 110 } 111 #endif // _LIBCPP_HAS_OPEN_WITH_WCHAR 112 113 #endif // __CloudABI__ 114 115 #if defined(_CS_GNU_LIBC_VERSION) 116 inline bool glibc_version_less_than(char const* version) { 117 std::string test_version = std::string("glibc ") + version; 118 119 size_t n = confstr(_CS_GNU_LIBC_VERSION, nullptr, (size_t)0); 120 char *current_version = new char[n]; 121 confstr(_CS_GNU_LIBC_VERSION, current_version, n); 122 123 bool result = strverscmp(current_version, test_version.c_str()) < 0; 124 delete[] current_version; 125 return result; 126 } 127 #endif // _CS_GNU_LIBC_VERSION 128 129 #endif // PLATFORM_SUPPORT_H 130