From ad19da011d5702da3407a17bf45f3d39ec651639 Mon Sep 17 00:00:00 2001 From: Kyle Edwards Date: Thu, 11 Mar 2021 12:02:13 -0500 Subject: Refactor: Add cmSystemTools::GetSystemName() And use it for CMAKE_HOST_SYSTEM_NAME and CMAKE_SYSTEM_NAME. --- Help/release/dev/cmake-system-name-version.rst | 10 +++++ Modules/CMakeDetermineSystem.cmake | 39 ++++-------------- Source/cmStateSnapshot.cxx | 55 ++++++++++---------------- Source/cmSystemTools.cxx | 47 ++++++++++++++++++++++ Source/cmSystemTools.h | 3 ++ 5 files changed, 88 insertions(+), 66 deletions(-) create mode 100644 Help/release/dev/cmake-system-name-version.rst diff --git a/Help/release/dev/cmake-system-name-version.rst b/Help/release/dev/cmake-system-name-version.rst new file mode 100644 index 0000000..9cfe401 --- /dev/null +++ b/Help/release/dev/cmake-system-name-version.rst @@ -0,0 +1,10 @@ +cmake-system-name-version +------------------------- + +* :variable:`CMAKE_HOST_SYSTEM_NAME`'s undocumented version-stripping behavior + has been moved earlier, before :command:`project` or + :command:`enable_language` is called. +* :variable:`CMAKE_SYSTEM_NAME`'s undocumented version-stripping behavior has + been removed entirely. If it is set by a ``-D`` flag or by a + :manual:`toolchain file `, it is left unaltered, even if + it still contains a version number. diff --git a/Modules/CMakeDetermineSystem.cmake b/Modules/CMakeDetermineSystem.cmake index bae270d..c3f2b74 100644 --- a/Modules/CMakeDetermineSystem.cmake +++ b/Modules/CMakeDetermineSystem.cmake @@ -158,37 +158,14 @@ endif() include(Platform/${CMAKE_SYSTEM_NAME}-Determine OPTIONAL) -macro(ADJUST_CMAKE_SYSTEM_VARIABLES _PREFIX) - if(NOT ${_PREFIX}_NAME) - set(${_PREFIX}_NAME "UnknownOS") - endif() - - # fix for BSD/OS , remove the / - if(${_PREFIX}_NAME MATCHES BSD.OS) - set(${_PREFIX}_NAME BSDOS) - endif() - - # fix for GNU/kFreeBSD, remove the GNU/ - if(${_PREFIX}_NAME MATCHES kFreeBSD) - set(${_PREFIX}_NAME kFreeBSD) - endif() - - # fix for CYGWIN which has windows version in it - if(${_PREFIX}_NAME MATCHES CYGWIN) - set(${_PREFIX}_NAME CYGWIN) - endif() - - # set CMAKE_SYSTEM to the CMAKE_SYSTEM_NAME - set(${_PREFIX} ${${_PREFIX}_NAME}) - # if there is a CMAKE_SYSTEM_VERSION then add a -${CMAKE_SYSTEM_VERSION} - if(${_PREFIX}_VERSION) - set(${_PREFIX} ${${_PREFIX}}-${${_PREFIX}_VERSION}) - endif() - -endmacro() - -ADJUST_CMAKE_SYSTEM_VARIABLES(CMAKE_SYSTEM) -ADJUST_CMAKE_SYSTEM_VARIABLES(CMAKE_HOST_SYSTEM) +set(CMAKE_SYSTEM ${CMAKE_SYSTEM_NAME}) +if(CMAKE_SYSTEM_VERSION) + string(APPEND CMAKE_SYSTEM -${CMAKE_SYSTEM_VERSION}) +endif() +set(CMAKE_HOST_SYSTEM ${CMAKE_HOST_SYSTEM_NAME}) +if(CMAKE_HOST_SYSTEM_VERSION) + string(APPEND CMAKE_HOST_SYSTEM -${CMAKE_HOST_SYSTEM_VERSION}) +endif() # this file is also executed from cpack, then we don't need to generate these files # in this case there is no CMAKE_BINARY_DIR diff --git a/Source/cmStateSnapshot.cxx b/Source/cmStateSnapshot.cxx index 1e20abb..fbf47ef 100644 --- a/Source/cmStateSnapshot.cxx +++ b/Source/cmStateSnapshot.cxx @@ -16,16 +16,9 @@ #include "cmState.h" #include "cmStateDirectory.h" #include "cmStatePrivate.h" +#include "cmSystemTools.h" #include "cmVersion.h" -#if !defined(_WIN32) -# include -#endif - -#if defined(__CYGWIN__) -# include "cmSystemTools.h" -#endif - cmStateSnapshot::cmStateSnapshot(cmState* state) : State(state) { @@ -292,34 +285,26 @@ void InitializeContentFromParent(T& parentContent, T& thisContent, void cmStateSnapshot::SetDefaultDefinitions() { -/* Up to CMake 2.4 here only WIN32, UNIX and APPLE were set. - With CMake must separate between target and host platform. In most cases - the tests for WIN32, UNIX and APPLE will be for the target system, so an - additional set of variables for the host system is required -> - CMAKE_HOST_WIN32, CMAKE_HOST_UNIX, CMAKE_HOST_APPLE. - WIN32, UNIX and APPLE are now set in the platform files in - Modules/Platforms/. - To keep cmake scripts (-P) and custom language and compiler modules - working, these variables are still also set here in this place, but they - will be reset in CMakeSystemSpecificInformation.cmake before the platform - files are executed. */ -#if defined(_WIN32) - this->SetDefinition("WIN32", "1"); - this->SetDefinition("CMAKE_HOST_WIN32", "1"); - this->SetDefinition("CMAKE_HOST_SYSTEM_NAME", "Windows"); -#else - this->SetDefinition("UNIX", "1"); - this->SetDefinition("CMAKE_HOST_UNIX", "1"); - -# if defined(__ANDROID__) - this->SetDefinition("CMAKE_HOST_SYSTEM_NAME", "Android"); -# else - struct utsname uts_name; - if (uname(&uts_name) >= 0) { - this->SetDefinition("CMAKE_HOST_SYSTEM_NAME", uts_name.sysname); + /* Up to CMake 2.4 here only WIN32, UNIX and APPLE were set. + With CMake must separate between target and host platform. In most cases + the tests for WIN32, UNIX and APPLE will be for the target system, so an + additional set of variables for the host system is required -> + CMAKE_HOST_WIN32, CMAKE_HOST_UNIX, CMAKE_HOST_APPLE. + WIN32, UNIX and APPLE are now set in the platform files in + Modules/Platforms/. + To keep cmake scripts (-P) and custom language and compiler modules + working, these variables are still also set here in this place, but they + will be reset in CMakeSystemSpecificInformation.cmake before the platform + files are executed. */ + cm::string_view hostSystemName = cmSystemTools::GetSystemName(); + this->SetDefinition("CMAKE_HOST_SYSTEM_NAME", hostSystemName); + if (hostSystemName == "Windows") { + this->SetDefinition("WIN32", "1"); + this->SetDefinition("CMAKE_HOST_WIN32", "1"); + } else { + this->SetDefinition("UNIX", "1"); + this->SetDefinition("CMAKE_HOST_UNIX", "1"); } -# endif -#endif #if defined(__CYGWIN__) std::string legacy; if (cmSystemTools::GetEnv("CMAKE_LEGACY_CYGWIN_WIN32", legacy) && diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx index 87ba152..e8e1018 100644 --- a/Source/cmSystemTools.cxx +++ b/Source/cmSystemTools.cxx @@ -103,6 +103,10 @@ # include /* for malloc/free on QNX */ #endif +#if !defined(_WIN32) && !defined(__ANDROID__) +# include +#endif + namespace { cmSystemTools::InterruptCallback s_InterruptCallback; @@ -3207,3 +3211,46 @@ bool cmSystemTools::CreateLink(const std::string& origName, return true; } + +cm::string_view cmSystemTools::GetSystemName() +{ +#if defined(_WIN32) + return "Windows"; +#elif defined(__ANDROID__) + return "Android"; +#else + static struct utsname uts_name; + static bool initialized = false; + static cm::string_view systemName; + if (initialized) { + return systemName; + } + if (uname(&uts_name) >= 0) { + initialized = true; + systemName = uts_name.sysname; + + if (cmIsOff(systemName)) { + systemName = "UnknownOS"; + } + + // fix for BSD/OS, remove the / + static const cmsys::RegularExpression bsdOsRegex("BSD.OS"); + cmsys::RegularExpressionMatch match; + if (bsdOsRegex.find(uts_name.sysname, match)) { + systemName = "BSDOS"; + } + + // fix for GNU/kFreeBSD, remove the GNU/ + if (systemName.find("kFreeBSD") != cm::string_view::npos) { + systemName = "kFreeBSD"; + } + + // fix for CYGWIN which has windows version in it + if (systemName.find("CYGWIN") != cm::string_view::npos) { + systemName = "CYGWIN"; + } + return systemName; + } + return ""; +#endif +} diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h index 2ff4c5d..5620899 100644 --- a/Source/cmSystemTools.h +++ b/Source/cmSystemTools.h @@ -498,6 +498,9 @@ public: const std::string& newName, std::string* errorMessage = nullptr); + /** Get the system name. */ + static cm::string_view GetSystemName(); + private: static bool s_ForceUnixPaths; static bool s_RunCommandHideConsole; -- cgit v0.12 From 69527a1979093a5fb103c1940f0f0b17d97b45e2 Mon Sep 17 00:00:00 2001 From: Kyle Edwards Date: Wed, 10 Mar 2021 16:30:19 -0500 Subject: Refactor: Pass CMakePresets.json version to ExpandMacros() functions --- Source/cmCMakePresetsFile.cxx | 100 ++++++++++++++++++++++++++---------------- Source/cmCMakePresetsFile.h | 7 +++ 2 files changed, 68 insertions(+), 39 deletions(-) diff --git a/Source/cmCMakePresetsFile.cxx b/Source/cmCMakePresetsFile.cxx index e9e8c4c..e9caecd 100644 --- a/Source/cmCMakePresetsFile.cxx +++ b/Source/cmCMakePresetsFile.cxx @@ -28,9 +28,9 @@ return _result; \ } -#define CHECK_EXPAND(out, field, expanders) \ +#define CHECK_EXPAND(out, field, expanders, version) \ { \ - switch (ExpandMacros(field, expanders)) { \ + switch (ExpandMacros(field, expanders, version)) { \ case ExpandMacroResult::Error: \ return false; \ case ExpandMacroResult::Ignore: \ @@ -849,16 +849,19 @@ enum class ExpandMacroResult }; using MacroExpander = std::function; + const std::string&, const std::string&, std::string&, int version)>; ExpandMacroResult VisitEnv(std::string& value, CycleStatus& status, - const std::vector& macroExpanders); + const std::vector& macroExpanders, + int version); ExpandMacroResult ExpandMacros( - std::string& out, const std::vector& macroExpanders); -ExpandMacroResult ExpandMacro( - std::string& out, const std::string& macroNamespace, - const std::string& macroName, - const std::vector& macroExpanders); + std::string& out, const std::vector& macroExpanders, + int version); +ExpandMacroResult ExpandMacro(std::string& out, + const std::string& macroNamespace, + const std::string& macroName, + const std::vector& macroExpanders, + int version); bool ExpandMacros(const cmCMakePresetsFile& file, const ConfigurePreset& preset, @@ -866,7 +869,7 @@ bool ExpandMacros(const cmCMakePresetsFile& file, const std::vector& macroExpanders) { std::string binaryDir = preset.BinaryDir; - CHECK_EXPAND(out, binaryDir, macroExpanders) + CHECK_EXPAND(out, binaryDir, macroExpanders, file.GetVersion(preset)) if (!cmSystemTools::FileIsFullPath(binaryDir)) { binaryDir = cmStrCat(file.SourceDir, '/', binaryDir); @@ -876,7 +879,7 @@ bool ExpandMacros(const cmCMakePresetsFile& file, if (!preset.InstallDir.empty()) { std::string installDir = preset.InstallDir; - CHECK_EXPAND(out, installDir, macroExpanders) + CHECK_EXPAND(out, installDir, macroExpanders, file.GetVersion(preset)) if (!cmSystemTools::FileIsFullPath(installDir)) { installDir = cmStrCat(file.SourceDir, '/', installDir); @@ -887,67 +890,76 @@ bool ExpandMacros(const cmCMakePresetsFile& file, for (auto& variable : out->CacheVariables) { if (variable.second) { - CHECK_EXPAND(out, variable.second->Value, macroExpanders) + CHECK_EXPAND(out, variable.second->Value, macroExpanders, + file.GetVersion(preset)) } } return true; } -bool ExpandMacros(const cmCMakePresetsFile&, const BuildPreset&, +bool ExpandMacros(const cmCMakePresetsFile& file, const BuildPreset& preset, cm::optional& out, const std::vector& macroExpanders) { for (auto& target : out->Targets) { - CHECK_EXPAND(out, target, macroExpanders) + CHECK_EXPAND(out, target, macroExpanders, file.GetVersion(preset)) } for (auto& nativeToolOption : out->NativeToolOptions) { - CHECK_EXPAND(out, nativeToolOption, macroExpanders) + CHECK_EXPAND(out, nativeToolOption, macroExpanders, + file.GetVersion(preset)) } return true; } -bool ExpandMacros(const cmCMakePresetsFile&, const TestPreset&, +bool ExpandMacros(const cmCMakePresetsFile& file, const TestPreset& preset, cm::optional& out, const std::vector& macroExpanders) { for (auto& overwrite : out->OverwriteConfigurationFile) { - CHECK_EXPAND(out, overwrite, macroExpanders); + CHECK_EXPAND(out, overwrite, macroExpanders, file.GetVersion(preset)); } if (out->Output) { - CHECK_EXPAND(out, out->Output->OutputLogFile, macroExpanders) + CHECK_EXPAND(out, out->Output->OutputLogFile, macroExpanders, + file.GetVersion(preset)) } if (out->Filter) { if (out->Filter->Include) { - CHECK_EXPAND(out, out->Filter->Include->Name, macroExpanders) - CHECK_EXPAND(out, out->Filter->Include->Label, macroExpanders) + CHECK_EXPAND(out, out->Filter->Include->Name, macroExpanders, + file.GetVersion(preset)) + CHECK_EXPAND(out, out->Filter->Include->Label, macroExpanders, + file.GetVersion(preset)) if (out->Filter->Include->Index) { CHECK_EXPAND(out, out->Filter->Include->Index->IndexFile, - macroExpanders); + macroExpanders, file.GetVersion(preset)); } } if (out->Filter->Exclude) { - CHECK_EXPAND(out, out->Filter->Exclude->Name, macroExpanders) - CHECK_EXPAND(out, out->Filter->Exclude->Label, macroExpanders) + CHECK_EXPAND(out, out->Filter->Exclude->Name, macroExpanders, + file.GetVersion(preset)) + CHECK_EXPAND(out, out->Filter->Exclude->Label, macroExpanders, + file.GetVersion(preset)) if (out->Filter->Exclude->Fixtures) { - CHECK_EXPAND(out, out->Filter->Exclude->Fixtures->Any, macroExpanders) + CHECK_EXPAND(out, out->Filter->Exclude->Fixtures->Any, macroExpanders, + file.GetVersion(preset)) CHECK_EXPAND(out, out->Filter->Exclude->Fixtures->Setup, - macroExpanders) + macroExpanders, file.GetVersion(preset)) CHECK_EXPAND(out, out->Filter->Exclude->Fixtures->Cleanup, - macroExpanders) + macroExpanders, file.GetVersion(preset)) } } } if (out->Execution) { - CHECK_EXPAND(out, out->Execution->ResourceSpecFile, macroExpanders) + CHECK_EXPAND(out, out->Execution->ResourceSpecFile, macroExpanders, + file.GetVersion(preset)) } return true; @@ -968,8 +980,8 @@ bool ExpandMacros(const cmCMakePresetsFile& file, const T& preset, MacroExpander defaultMacroExpander = [&file, &preset](const std::string& macroNamespace, - const std::string& macroName, - std::string& macroOut) -> ExpandMacroResult { + const std::string& macroName, std::string& macroOut, + int /*version*/) -> ExpandMacroResult { if (macroNamespace.empty()) { if (macroName == "sourceDir") { macroOut += file.SourceDir; @@ -1006,11 +1018,12 @@ bool ExpandMacros(const cmCMakePresetsFile& file, const T& preset, MacroExpander environmentMacroExpander = [¯oExpanders, &out, &envCycles]( const std::string& macroNamespace, const std::string& macroName, - std::string& result) -> ExpandMacroResult { + std::string& result, int version) -> ExpandMacroResult { if (macroNamespace == "env" && !macroName.empty() && out) { auto v = out->Environment.find(macroName); if (v != out->Environment.end() && v->second) { - auto e = VisitEnv(*v->second, envCycles[macroName], macroExpanders); + auto e = + VisitEnv(*v->second, envCycles[macroName], macroExpanders, version); if (e != ExpandMacroResult::Ok) { return e; } @@ -1038,7 +1051,8 @@ bool ExpandMacros(const cmCMakePresetsFile& file, const T& preset, for (auto& v : out->Environment) { if (v.second) { - switch (VisitEnv(*v.second, envCycles[v.first], macroExpanders)) { + switch (VisitEnv(*v.second, envCycles[v.first], macroExpanders, + file.GetVersion(preset))) { case ExpandMacroResult::Error: return false; case ExpandMacroResult::Ignore: @@ -1054,7 +1068,8 @@ bool ExpandMacros(const cmCMakePresetsFile& file, const T& preset, } ExpandMacroResult VisitEnv(std::string& value, CycleStatus& status, - const std::vector& macroExpanders) + const std::vector& macroExpanders, + int version) { if (status == CycleStatus::Verified) { return ExpandMacroResult::Ok; @@ -1064,7 +1079,7 @@ ExpandMacroResult VisitEnv(std::string& value, CycleStatus& status, } status = CycleStatus::InProgress; - auto e = ExpandMacros(value, macroExpanders); + auto e = ExpandMacros(value, macroExpanders, version); if (e != ExpandMacroResult::Ok) { return e; } @@ -1073,7 +1088,8 @@ ExpandMacroResult VisitEnv(std::string& value, CycleStatus& status, } ExpandMacroResult ExpandMacros( - std::string& out, const std::vector& macroExpanders) + std::string& out, const std::vector& macroExpanders, + int version) { std::string result; std::string macroNamespace; @@ -1120,8 +1136,8 @@ ExpandMacroResult ExpandMacros( case State::MacroName: if (c == '}') { - auto e = - ExpandMacro(result, macroNamespace, macroName, macroExpanders); + auto e = ExpandMacro(result, macroNamespace, macroName, + macroExpanders, version); if (e != ExpandMacroResult::Ok) { return e; } @@ -1153,10 +1169,11 @@ ExpandMacroResult ExpandMacros( ExpandMacroResult ExpandMacro(std::string& out, const std::string& macroNamespace, const std::string& macroName, - const std::vector& macroExpanders) + const std::vector& macroExpanders, + int version) { for (auto const& macroExpander : macroExpanders) { - auto result = macroExpander(macroNamespace, macroName, out); + auto result = macroExpander(macroNamespace, macroName, out, version); if (result != ExpandMacroResult::Ignore) { return result; } @@ -1549,6 +1566,11 @@ cmCMakePresetsFile::ReadFileResult cmCMakePresetsFile::ReadJSONFile( if (v < MIN_VERSION || v > MAX_VERSION) { return ReadFileResult::UNRECOGNIZED_VERSION; } + if (user) { + this->UserVersion = v; + } else { + this->Version = v; + } // Support for build and test presets added in version 2. if (v < 2 && diff --git a/Source/cmCMakePresetsFile.h b/Source/cmCMakePresetsFile.h index 517215d..eed0eab 100644 --- a/Source/cmCMakePresetsFile.h +++ b/Source/cmCMakePresetsFile.h @@ -294,6 +294,13 @@ public: std::vector TestPresetOrder; std::string SourceDir; + int Version; + int UserVersion; + + int GetVersion(const Preset& preset) const + { + return preset.User ? this->UserVersion : this->Version; + } static std::string GetFilename(const std::string& sourceDir); static std::string GetUserFilename(const std::string& sourceDir); -- cgit v0.12 From 79d03ab5055da1397c525c31d8cb13c30965a911 Mon Sep 17 00:00:00 2001 From: Kyle Edwards Date: Thu, 11 Mar 2021 09:22:37 -0500 Subject: Help: Fix version numbers in CMakePresets.json documentation --- Help/manual/cmake-presets.7.rst | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/Help/manual/cmake-presets.7.rst b/Help/manual/cmake-presets.7.rst index 3d2ada8..60d0473 100644 --- a/Help/manual/cmake-presets.7.rst +++ b/Help/manual/cmake-presets.7.rst @@ -39,7 +39,7 @@ The root object recognizes the following fields: ``version`` A required integer representing the version of the JSON schema. - The supported versions are ``1`` and ``2``. + The supported versions are ``1``, ``2``, and ``3``. ``cmakeMinimumRequired`` @@ -70,17 +70,17 @@ The root object recognizes the following fields: ``configurePresets`` An optional array of `Configure Preset`_ objects. - This is allowed in preset files specifying version 1 or above. + This is allowed in preset files specifying version ``1`` or above. ``buildPresets`` An optional array of `Build Preset`_ objects. - This is allowed in preset files specifying version 2 or above. + This is allowed in preset files specifying version ``2`` or above. ``testPresets`` An optional array of `Test Preset`_ objects. - This is allowed in preset files specifying version 2 or above. + This is allowed in preset files specifying version ``2`` or above. Configure Preset ^^^^^^^^^^^^^^^^ @@ -187,7 +187,8 @@ that may contain the following fields: An optional string representing the path to the installation directory. This field supports `macro expansion`_. If a relative path is specified, - it is calculated relative to the source directory. + it is calculated relative to the source directory. This is allowed in + preset files specifying version ``3`` or above. ``cmakeExecutable`` -- cgit v0.12 From 0d497e159b5854ed050d9eb8c4e965976a03de11 Mon Sep 17 00:00:00 2001 From: Kyle Edwards Date: Wed, 10 Mar 2021 16:46:20 -0500 Subject: CMakePresets.json: Add ${hostSystemName} macro --- Help/manual/cmake-presets.7.rst | 6 ++++++ Help/release/dev/cmake-presets-host-system-name.rst | 5 +++++ Source/cmCMakePresetsFile.cxx | 10 +++++++++- Tests/RunCMake/CMakePresets/HostSystemName.cmake | 3 +++ Tests/RunCMake/CMakePresets/HostSystemName.json.in | 13 +++++++++++++ Tests/RunCMake/CMakePresets/HostSystemNameFuture-result.txt | 1 + Tests/RunCMake/CMakePresets/HostSystemNameFuture-stderr.txt | 2 ++ Tests/RunCMake/CMakePresets/HostSystemNameFuture.json.in | 13 +++++++++++++ Tests/RunCMake/CMakePresets/RunCMakeTest.cmake | 6 ++++++ 9 files changed, 58 insertions(+), 1 deletion(-) create mode 100644 Help/release/dev/cmake-presets-host-system-name.rst create mode 100644 Tests/RunCMake/CMakePresets/HostSystemName.cmake create mode 100644 Tests/RunCMake/CMakePresets/HostSystemName.json.in create mode 100644 Tests/RunCMake/CMakePresets/HostSystemNameFuture-result.txt create mode 100644 Tests/RunCMake/CMakePresets/HostSystemNameFuture-stderr.txt create mode 100644 Tests/RunCMake/CMakePresets/HostSystemNameFuture.json.in diff --git a/Help/manual/cmake-presets.7.rst b/Help/manual/cmake-presets.7.rst index 60d0473..5273236 100644 --- a/Help/manual/cmake-presets.7.rst +++ b/Help/manual/cmake-presets.7.rst @@ -830,6 +830,12 @@ Recognized macros include: test presets, this will evaluate to the generator specified by ``configurePreset``. +``${hostSystemName}`` + + The name of the host operating system. Contains the same value as + :variable:`CMAKE_HOST_SYSTEM_NAME`. This is allowed in preset files + specifying version ``3`` or above. + ``${dollar}`` A literal dollar sign (``$``). diff --git a/Help/release/dev/cmake-presets-host-system-name.rst b/Help/release/dev/cmake-presets-host-system-name.rst new file mode 100644 index 0000000..8036939 --- /dev/null +++ b/Help/release/dev/cmake-presets-host-system-name.rst @@ -0,0 +1,5 @@ +cmake-presets-host-system-name +------------------------------ + +* :manual:`cmake-presets(7)` gained support for a new ``${hostSystemName}`` + macro. diff --git a/Source/cmCMakePresetsFile.cxx b/Source/cmCMakePresetsFile.cxx index e9caecd..7726927 100644 --- a/Source/cmCMakePresetsFile.cxx +++ b/Source/cmCMakePresetsFile.cxx @@ -9,6 +9,7 @@ #include #include +#include #include #include @@ -981,7 +982,7 @@ bool ExpandMacros(const cmCMakePresetsFile& file, const T& preset, MacroExpander defaultMacroExpander = [&file, &preset](const std::string& macroNamespace, const std::string& macroName, std::string& macroOut, - int /*version*/) -> ExpandMacroResult { + int version) -> ExpandMacroResult { if (macroNamespace.empty()) { if (macroName == "sourceDir") { macroOut += file.SourceDir; @@ -1010,6 +1011,13 @@ bool ExpandMacros(const cmCMakePresetsFile& file, const T& preset, macroOut += '$'; return ExpandMacroResult::Ok; } + if (macroName == "hostSystemName") { + if (version < 3) { + return ExpandMacroResult::Error; + } + macroOut += cmSystemTools::GetSystemName(); + return ExpandMacroResult::Ok; + } } return ExpandMacroResult::Ignore; diff --git a/Tests/RunCMake/CMakePresets/HostSystemName.cmake b/Tests/RunCMake/CMakePresets/HostSystemName.cmake new file mode 100644 index 0000000..dc0998a --- /dev/null +++ b/Tests/RunCMake/CMakePresets/HostSystemName.cmake @@ -0,0 +1,3 @@ +include(${CMAKE_CURRENT_LIST_DIR}/TestVariable.cmake) + +test_variable(TEST_HOST_SYSTEM_NAME "" "${CMAKE_HOST_SYSTEM_NAME}") diff --git a/Tests/RunCMake/CMakePresets/HostSystemName.json.in b/Tests/RunCMake/CMakePresets/HostSystemName.json.in new file mode 100644 index 0000000..7fcd8c8 --- /dev/null +++ b/Tests/RunCMake/CMakePresets/HostSystemName.json.in @@ -0,0 +1,13 @@ +{ + "version": 3, + "configurePresets": [ + { + "name": "HostSystemName", + "generator": "@RunCMake_GENERATOR@", + "binaryDir": "${sourceDir}/build", + "cacheVariables": { + "TEST_HOST_SYSTEM_NAME": "${hostSystemName}" + } + } + ] +} diff --git a/Tests/RunCMake/CMakePresets/HostSystemNameFuture-result.txt b/Tests/RunCMake/CMakePresets/HostSystemNameFuture-result.txt new file mode 100644 index 0000000..d00491f --- /dev/null +++ b/Tests/RunCMake/CMakePresets/HostSystemNameFuture-result.txt @@ -0,0 +1 @@ +1 diff --git a/Tests/RunCMake/CMakePresets/HostSystemNameFuture-stderr.txt b/Tests/RunCMake/CMakePresets/HostSystemNameFuture-stderr.txt new file mode 100644 index 0000000..7f4bb9a --- /dev/null +++ b/Tests/RunCMake/CMakePresets/HostSystemNameFuture-stderr.txt @@ -0,0 +1,2 @@ +^CMake Error: Could not read presets from [^ +]*/Tests/RunCMake/CMakePresets/HostSystemNameFuture: Invalid macro expansion$ diff --git a/Tests/RunCMake/CMakePresets/HostSystemNameFuture.json.in b/Tests/RunCMake/CMakePresets/HostSystemNameFuture.json.in new file mode 100644 index 0000000..7a2f0aa --- /dev/null +++ b/Tests/RunCMake/CMakePresets/HostSystemNameFuture.json.in @@ -0,0 +1,13 @@ +{ + "version": 2, + "configurePresets": [ + { + "name": "HostSystemNameFuture", + "generator": "@RunCMake_GENERATOR@", + "binaryDir": "${sourceDir}/build", + "cacheVariables": { + "TEST_HOST_SYSTEM_NAME": "${hostSystemName}" + } + } + ] +} diff --git a/Tests/RunCMake/CMakePresets/RunCMakeTest.cmake b/Tests/RunCMake/CMakePresets/RunCMakeTest.cmake index ee21130..24ac0e9 100644 --- a/Tests/RunCMake/CMakePresets/RunCMakeTest.cmake +++ b/Tests/RunCMake/CMakePresets/RunCMakeTest.cmake @@ -261,6 +261,12 @@ set(CMakePresets_FILE "${RunCMake_SOURCE_DIR}/Debug.json.in") run_cmake_presets(NoDebug) run_cmake_presets(Debug) +# Test ${hostSystemName} macro +set(CMakePresets_FILE "${RunCMake_SOURCE_DIR}/HostSystemName.json.in") +run_cmake_presets(HostSystemName) +set(CMakePresets_FILE "${RunCMake_SOURCE_DIR}/HostSystemNameFuture.json.in") +run_cmake_presets(HostSystemNameFuture) + # Test the example from the documentation file(READ "${RunCMake_SOURCE_DIR}/../../../Help/manual/presets/example.json" _example) string(REPLACE "\"generator\": \"Ninja\"" "\"generator\": \"@RunCMake_GENERATOR@\"" _example "${_example}") -- cgit v0.12 /a> 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 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/* Python interpreter top-level routines, including init/exit */

#include "Python.h"

#include "Python-ast.h"
#undef Yield /* undefine macro conflicting with winbase.h */
#include "grammar.h"
#include "node.h"
#include "token.h"
#include "parsetok.h"
#include "errcode.h"
#include "code.h"
#include "compile.h"
#include "symtable.h"
#include "pyarena.h"
#include "ast.h"
#include "eval.h"
#include "marshal.h"
#include "abstract.h"

#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif

#ifdef MS_WINDOWS
#include "malloc.h" /* for alloca */
#endif

#ifdef HAVE_LANGINFO_H
#include <locale.h>
#include <langinfo.h>
#endif

#ifdef MS_WINDOWS
#undef BYTE
#include "windows.h"
#endif

#ifndef Py_REF_DEBUG
#define PRINT_TOTAL_REFS()
#else /* Py_REF_DEBUG */
#define PRINT_TOTAL_REFS() fprintf(stderr,                              \
                   "[%" PY_FORMAT_SIZE_T "d refs]\n",                   \
                   _Py_GetRefTotal())
#endif

#ifdef __cplusplus
extern "C" {
#endif

extern char *Py_GetPath(void);

extern grammar _PyParser_Grammar; /* From graminit.c */

/* Forward */
static void initmain(void);
static void initsite(void);
static PyObject *run_mod(mod_ty, const char *, PyObject *, PyObject *,
                          PyCompilerFlags *, PyArena *);
static PyObject *run_pyc_file(FILE *, const char *, PyObject *, PyObject *,
                              PyCompilerFlags *);
static void err_input(perrdetail *);
static void initsigs(void);
static void wait_for_thread_shutdown(void);
static void call_sys_exitfunc(void);
static void call_ll_exitfuncs(void);
extern void _PyUnicode_Init(void);
extern void _PyUnicode_Fini(void);

#ifdef WITH_THREAD
extern void _PyGILState_Init(PyInterpreterState *, PyThreadState *);
extern void _PyGILState_Fini(void);
#endif /* WITH_THREAD */

int Py_DebugFlag; /* Needed by parser.c */
int Py_VerboseFlag; /* Needed by import.c */
int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */
int Py_InspectFlag; /* Needed to determine whether to exit at SystemExit */
int Py_NoSiteFlag; /* Suppress 'import site' */
int Py_BytesWarningFlag; /* Warn on str(bytes) and str(buffer) */
int Py_DontWriteBytecodeFlag; /* Suppress writing bytecode files (*.py[co]) */
int Py_UseClassExceptionsFlag = 1; /* Needed by bltinmodule.c: deprecated */
int Py_FrozenFlag; /* Needed by getpath.c */
int Py_UnicodeFlag = 0; /* Needed by compile.c */
int Py_IgnoreEnvironmentFlag; /* e.g. PYTHONPATH, PYTHONHOME */
/* _XXX Py_QnewFlag should go away in 2.3.  It's true iff -Qnew is passed,
  on the command line, and is used in 2.2 by ceval.c to make all "/" divisions
  true divisions (which they will be in 2.3). */
int _Py_QnewFlag = 0;
int Py_NoUserSiteDirectory = 0; /* for -s and site.py */
int Py_HashRandomizationFlag = 0; /* for -R and PYTHONHASHSEED */


/* Hack to force loading of object files */
int (*_PyOS_mystrnicmp_hack)(const char *, const char *, Py_ssize_t) = \
    PyOS_mystrnicmp; /* Python/pystrcmp.o */

/* PyModule_GetWarningsModule is no longer necessary as of 2.6
since _warnings is builtin.  This API should not be used. */
PyObject *
PyModule_GetWarningsModule(void)
{
    return PyImport_ImportModule("warnings");
}

static int initialized = 0;

/* API to access the initialized flag -- useful for esoteric use */

int
Py_IsInitialized(void)
{
    return initialized;
}

/* Global initializations.  Can be undone by Py_Finalize().  Don't
   call this twice without an intervening Py_Finalize() call.  When
   initializations fail, a fatal error is issued and the function does
   not return.  On return, the first thread and interpreter state have
   been created.

   Locking: you must hold the interpreter lock while calling this.
   (If the lock has not yet been initialized, that's equivalent to
   having the lock, but you cannot use multiple threads.)

*/

static int
add_flag(int flag, const char *envs)
{
    int env = atoi(envs);
    if (flag < env)
        flag = env;
    if (flag < 1)
        flag = 1;
    return flag;
}

static int
isatty_no_error(PyObject *sys_stream)
{
    PyObject *sys_isatty = PyObject_CallMethod(sys_stream, "isatty", "");
    if (sys_isatty) {
        int isatty = PyObject_IsTrue(sys_isatty);
        Py_DECREF(sys_isatty);
        if (isatty >= 0)
            return isatty;
    }
    PyErr_Clear();
    return 0;
}

void
Py_InitializeEx(int install_sigs)
{
    PyInterpreterState *interp;
    PyThreadState *tstate;
    PyObject *bimod, *sysmod;
    char *p;
    char *icodeset = NULL; /* On Windows, input codeset may theoretically
                              differ from output codeset. */
    char *codeset = NULL;
    char *errors = NULL;
    int free_codeset = 0;
    int overridden = 0;
    PyObject *sys_stream;
#if defined(Py_USING_UNICODE) && defined(HAVE_LANGINFO_H) && defined(CODESET)
    char *saved_locale, *loc_codeset;
#endif
#ifdef MS_WINDOWS
    char ibuf[128];
    char buf[128];
#endif
    extern void _Py_ReadyTypes(void);

    if (initialized)
        return;
    initialized = 1;

    if ((p = Py_GETENV("PYTHONDEBUG")) && *p != '\0')
        Py_DebugFlag = add_flag(Py_DebugFlag, p);
    if ((p = Py_GETENV("PYTHONVERBOSE")) && *p != '\0')
        Py_VerboseFlag = add_flag(Py_VerboseFlag, p);
    if ((p = Py_GETENV("PYTHONOPTIMIZE")) && *p != '\0')
        Py_OptimizeFlag = add_flag(Py_OptimizeFlag, p);
    if ((p = Py_GETENV("PYTHONDONTWRITEBYTECODE")) && *p != '\0')
        Py_DontWriteBytecodeFlag = add_flag(Py_DontWriteBytecodeFlag, p);
    /* The variable is only tested for existence here; _PyRandom_Init will
       check its value further. */
    if ((p = Py_GETENV("PYTHONHASHSEED")) && *p != '\0')
        Py_HashRandomizationFlag = add_flag(Py_HashRandomizationFlag, p);

    _PyRandom_Init();

    interp = PyInterpreterState_New();
    if (interp == NULL)
        Py_FatalError("Py_Initialize: can't make first interpreter");

    tstate = PyThreadState_New(interp);
    if (tstate == NULL)
        Py_FatalError("Py_Initialize: can't make first thread");
    (void) PyThreadState_Swap(tstate);

    _Py_ReadyTypes();

    if (!_PyFrame_Init())
        Py_FatalError("Py_Initialize: can't init frames");

    if (!_PyInt_Init())
        Py_FatalError("Py_Initialize: can't init ints");

    if (!_PyLong_Init())
        Py_FatalError("Py_Initialize: can't init longs");

    if (!PyByteArray_Init())
        Py_FatalError("Py_Initialize: can't init bytearray");

    _PyFloat_Init();

    interp->modules = PyDict_New();
    if (interp->modules == NULL)
        Py_FatalError("Py_Initialize: can't make modules dictionary");
    interp->modules_reloading = PyDict_New();
    if (interp->modules_reloading == NULL)
        Py_FatalError("Py_Initialize: can't make modules_reloading dictionary");

#ifdef Py_USING_UNICODE
    /* Init Unicode implementation; relies on the codec registry */
    _PyUnicode_Init();
#endif

    bimod = _PyBuiltin_Init();
    if (bimod == NULL)
        Py_FatalError("Py_Initialize: can't initialize __builtin__");
    interp->builtins = PyModule_GetDict(bimod);
    if (interp->builtins == NULL)
        Py_FatalError("Py_Initialize: can't initialize builtins dict");
    Py_INCREF(interp->builtins);

    sysmod = _PySys_Init();
    if (sysmod == NULL)
        Py_FatalError("Py_Initialize: can't initialize sys");
    interp->sysdict = PyModule_GetDict(sysmod);
    if (interp->sysdict == NULL)
        Py_FatalError("Py_Initialize: can't initialize sys dict");
    Py_INCREF(interp->sysdict);
    _PyImport_FixupExtension("sys", "sys");
    PySys_SetPath(Py_GetPath());
    PyDict_SetItemString(interp->sysdict, "modules",
                         interp->modules);

    _PyImport_Init();

    /* initialize builtin exceptions */
    _PyExc_Init();
    _PyImport_FixupExtension("exceptions", "exceptions");

    /* phase 2 of builtins */
    _PyImport_FixupExtension("__builtin__", "__builtin__");

    _PyImportHooks_Init();

    if (install_sigs)
        initsigs(); /* Signal handling stuff, including initintr() */

    /* Initialize warnings. */
    _PyWarnings_Init();
    if (PySys_HasWarnOptions()) {
        PyObject *warnings_module = PyImport_ImportModule("warnings");
        if (!warnings_module)
            PyErr_Clear();
        Py_XDECREF(warnings_module);
    }

    initmain(); /* Module __main__ */

    /* auto-thread-state API, if available */
#ifdef WITH_THREAD
    _PyGILState_Init(interp, tstate);
#endif /* WITH_THREAD */

    if (!Py_NoSiteFlag)
        initsite(); /* Module site */

    if ((p = Py_GETENV("PYTHONIOENCODING")) && *p != '\0') {
        p = icodeset = codeset = strdup(p);
        free_codeset = 1;
        errors = strchr(p, ':');
        if (errors) {
            *errors = '\0';
            errors++;
        }
        overridden = 1;
    }

#if defined(Py_USING_UNICODE) && defined(HAVE_LANGINFO_H) && defined(CODESET)
    /* On Unix, set the file system encoding according to the
       user's preference, if the CODESET names a well-known
       Python codec, and Py_FileSystemDefaultEncoding isn't
       initialized by other means. Also set the encoding of
       stdin and stdout if these are terminals, unless overridden.  */

    if (!overridden || !Py_FileSystemDefaultEncoding) {
        saved_locale = strdup(setlocale(LC_CTYPE, NULL));
        setlocale(LC_CTYPE, "");
        loc_codeset = nl_langinfo(CODESET);
        if (loc_codeset && *loc_codeset) {
            PyObject *enc = PyCodec_Encoder(loc_codeset);
            if (enc) {
                loc_codeset = strdup(loc_codeset);
                Py_DECREF(enc);
            } else {
                if (PyErr_ExceptionMatches(PyExc_LookupError)) {
                    PyErr_Clear();
                    loc_codeset = NULL;
                } else {
                    PyErr_Print();
                    exit(1);
                }
            }
        } else
            loc_codeset = NULL;
        setlocale(LC_CTYPE, saved_locale);
        free(saved_locale);

        if (!overridden) {
            codeset = icodeset = loc_codeset;
            free_codeset = 1;
        }

        /* Initialize Py_FileSystemDefaultEncoding from
           locale even if PYTHONIOENCODING is set. */
        if (!Py_FileSystemDefaultEncoding) {
            Py_FileSystemDefaultEncoding = loc_codeset;
            if (!overridden)
                free_codeset = 0;
        }
    }
#endif

#ifdef MS_WINDOWS
    if (!overridden) {
        icodeset = ibuf;
        codeset = buf;
        sprintf(ibuf, "cp%d", GetConsoleCP());
        sprintf(buf, "cp%d", GetConsoleOutputCP());
    }
#endif

    if (codeset) {
        sys_stream = PySys_GetObject("stdin");
        if ((overridden || isatty_no_error(sys_stream)) &&
            PyFile_Check(sys_stream)) {
            if (!PyFile_SetEncodingAndErrors(sys_stream, icodeset, errors))
                Py_FatalError("Cannot set codeset of stdin");
        }

        sys_stream = PySys_GetObject("stdout");
        if ((overridden || isatty_no_error(sys_stream)) &&
            PyFile_Check(sys_stream)) {
            if (!PyFile_SetEncodingAndErrors(sys_stream, codeset, errors))
                Py_FatalError("Cannot set codeset of stdout");
        }

        sys_stream = PySys_GetObject("stderr");
        if ((overridden || isatty_no_error(sys_stream)) &&
            PyFile_Check(sys_stream)) {
            if (!PyFile_SetEncodingAndErrors(sys_stream, codeset, errors))
                Py_FatalError("Cannot set codeset of stderr");
        }

        if (free_codeset)
            free(codeset);
    }
}

void
Py_Initialize(void)
{
    Py_InitializeEx(1);
}


#ifdef COUNT_ALLOCS
extern void dump_counts(FILE*);
#endif

/* Undo the effect of Py_Initialize().

   Beware: if multiple interpreter and/or thread states exist, these
   are not wiped out; only the current thread and interpreter state
   are deleted.  But since everything else is deleted, those other
   interpreter and thread states should no longer be used.

   (XXX We should do better, e.g. wipe out all interpreters and
   threads.)

   Locking: as above.

*/

void
Py_Finalize(void)
{
    PyInterpreterState *interp;
    PyThreadState *tstate;

    if (!initialized)
        return;

    wait_for_thread_shutdown();

    /* The interpreter is still entirely intact at this point, and the
     * exit funcs may be relying on that.  In particular, if some thread
     * or exit func is still waiting to do an import, the import machinery
     * expects Py_IsInitialized() to return true.  So don't say the
     * interpreter is uninitialized until after the exit funcs have run.
     * Note that Threading.py uses an exit func to do a join on all the
     * threads created thru it, so this also protects pending imports in
     * the threads created via Threading.
     */
    call_sys_exitfunc();
    initialized = 0;

    /* Get current thread state and interpreter pointer */
    tstate = PyThreadState_GET();
    interp = tstate->interp;

    /* Disable signal handling */
    PyOS_FiniInterrupts();

    /* Clear type lookup cache */
    PyType_ClearCache();

    /* Collect garbage.  This may call finalizers; it's nice to call these
     * before all modules are destroyed.
     * XXX If a __del__ or weakref callback is triggered here, and tries to
     * XXX import a module, bad things can happen, because Python no
     * XXX longer believes it's initialized.
     * XXX     Fatal Python error: Interpreter not initialized (version mismatch?)
     * XXX is easy to provoke that way.  I've also seen, e.g.,
     * XXX     Exception exceptions.ImportError: 'No module named sha'
     * XXX         in <function callback at 0x008F5718> ignored
     * XXX but I'm unclear on exactly how that one happens.  In any case,
     * XXX I haven't seen a real-life report of either of these.
     */
    PyGC_Collect();
#ifdef COUNT_ALLOCS
    /* With COUNT_ALLOCS, it helps to run GC multiple times:
       each collection might release some types from the type
       list, so they become garbage. */
    while (PyGC_Collect() > 0)
        /* nothing */;
#endif

    /* Destroy all modules */
    PyImport_Cleanup();

    /* Collect final garbage.  This disposes of cycles created by
     * new-style class definitions, for example.
     * XXX This is disabled because it caused too many problems.  If
     * XXX a __del__ or weakref callback triggers here, Python code has
     * XXX a hard time running, because even the sys module has been
     * XXX cleared out (sys.stdout is gone, sys.excepthook is gone, etc).
     * XXX One symptom is a sequence of information-free messages
     * XXX coming from threads (if a __del__ or callback is invoked,
     * XXX other threads can execute too, and any exception they encounter
     * XXX triggers a comedy of errors as subsystem after subsystem
     * XXX fails to find what it *expects* to find in sys to help report
     * XXX the exception and consequent unexpected failures).  I've also
     * XXX seen segfaults then, after adding print statements to the
     * XXX Python code getting called.
     */
#if 0
    PyGC_Collect();
#endif

    /* Destroy the database used by _PyImport_{Fixup,Find}Extension */
    _PyImport_Fini();

    /* Debugging stuff */
#ifdef COUNT_ALLOCS
    dump_counts(stdout);
#endif

    PRINT_TOTAL_REFS();

#ifdef Py_TRACE_REFS
    /* Display all objects still alive -- this can invoke arbitrary
     * __repr__ overrides, so requires a mostly-intact interpreter.
     * Alas, a lot of stuff may still be alive now that will be cleaned
     * up later.
     */
    if (Py_GETENV("PYTHONDUMPREFS"))
        _Py_PrintReferences(stderr);
#endif /* Py_TRACE_REFS */

    /* Clear interpreter state */
    PyInterpreterState_Clear(interp);

    /* Now we decref the exception classes.  After this point nothing
       can raise an exception.  That's okay, because each Fini() method
       below has been checked to make sure no exceptions are ever
       raised.
    */

    _PyExc_Fini();

    /* Cleanup auto-thread-state */
#ifdef WITH_THREAD
    _PyGILState_Fini();
#endif /* WITH_THREAD */

    /* Delete current thread */
    PyThreadState_Swap(NULL);
    PyInterpreterState_Delete(interp);

    /* Sundry finalizers */
    PyMethod_Fini();
    PyFrame_Fini();
    PyCFunction_Fini();
    PyTuple_Fini();
    PyList_Fini();
    PySet_Fini();
    PyString_Fini();
    PyByteArray_Fini();
    PyInt_Fini();
    PyFloat_Fini();
    PyDict_Fini();
    _PyRandom_Fini();

#ifdef Py_USING_UNICODE
    /* Cleanup Unicode implementation */
    _PyUnicode_Fini();
#endif

    /* XXX Still allocated:
       - various static ad-hoc pointers to interned strings
       - int and float free list blocks
       - whatever various modules and libraries allocate
    */

    PyGrammar_RemoveAccelerators(&_PyParser_Grammar);

#ifdef Py_TRACE_REFS
    /* Display addresses (& refcnts) of all objects still alive.
     * An address can be used to find the repr of the object, printed
     * above by _Py_PrintReferences.
     */
    if (Py_GETENV("PYTHONDUMPREFS"))
        _Py_PrintReferenceAddresses(stderr);
#endif /* Py_TRACE_REFS */
#ifdef PYMALLOC_DEBUG
    if (Py_GETENV("PYTHONMALLOCSTATS"))
        _PyObject_DebugMallocStats();
#endif

    call_ll_exitfuncs();
}

/* Create and initialize a new interpreter and thread, and return the
   new thread.  This requires that Py_Initialize() has been called
   first.

   Unsuccessful initialization yields a NULL pointer.  Note that *no*
   exception information is available even in this case -- the
   exception information is held in the thread, and there is no
   thread.

   Locking: as above.

*/

PyThreadState *
Py_NewInterpreter(void)
{
    PyInterpreterState *interp;
    PyThreadState *tstate, *save_tstate;
    PyObject *bimod, *sysmod;

    if (!initialized)
        Py_FatalError("Py_NewInterpreter: call Py_Initialize first");

    interp = PyInterpreterState_New();
    if (interp == NULL)
        return NULL;

    tstate = PyThreadState_New(interp);
    if (tstate == NULL) {
        PyInterpreterState_Delete(interp);
        return NULL;
    }

    save_tstate = PyThreadState_Swap(tstate);

    /* XXX The following is lax in error checking */

    interp->modules = PyDict_New();
    interp->modules_reloading = PyDict_New();

    bimod = _PyImport_FindExtension("__builtin__", "__builtin__");
    if (bimod != NULL) {
        interp->builtins = PyModule_GetDict(bimod);
        if (interp->builtins == NULL)
            goto handle_error;
        Py_INCREF(interp->builtins);
    }
    sysmod = _PyImport_FindExtension("sys", "sys");
    if (bimod != NULL && sysmod != NULL) {
        interp->sysdict = PyModule_GetDict(sysmod);
        if (interp->sysdict == NULL)
            goto handle_error;
        Py_INCREF(interp->sysdict);
        PySys_SetPath(Py_GetPath());
        PyDict_SetItemString(interp->sysdict, "modules",
                             interp->modules);
        _PyImportHooks_Init();
        initmain();
        if (!Py_NoSiteFlag)
            initsite();
    }

    if (!PyErr_Occurred())
        return tstate;

handle_error:
    /* Oops, it didn't work.  Undo it all. */

    PyErr_Print();
    PyThreadState_Clear(tstate);
    PyThreadState_Swap(save_tstate);
    PyThreadState_Delete(tstate);
    PyInterpreterState_Delete(interp);

    return NULL;
}

/* Delete an interpreter and its last thread.  This requires that the
   given thread state is current, that the thread has no remaining
   frames, and that it is its interpreter's only remaining thread.
   It is a fatal error to violate these constraints.

   (Py_Finalize() doesn't have these constraints -- it zaps
   everything, regardless.)

   Locking: as above.

*/

void
Py_EndInterpreter(PyThreadState *tstate)
{
    PyInterpreterState *interp = tstate->interp;

    if (tstate != PyThreadState_GET())
        Py_FatalError("Py_EndInterpreter: thread is not current");
    if (tstate->frame != NULL)
        Py_FatalError("Py_EndInterpreter: thread still has a frame");
    if (tstate != interp->tstate_head || tstate->next != NULL)
        Py_FatalError("Py_EndInterpreter: not the last thread");

    PyImport_Cleanup();
    PyInterpreterState_Clear(interp);
    PyThreadState_Swap(NULL);
    PyInterpreterState_Delete(interp);
}

static char *progname = "python";

void
Py_SetProgramName(char *pn)
{
    if (pn && *pn)
        progname = pn;
}

char *
Py_GetProgramName(void)
{
    return progname;
}

static char *default_home = NULL;

void
Py_SetPythonHome(char *home)
{
    default_home = home;
}

char *
Py_GetPythonHome(void)
{
    char *home = default_home;
    if (home == NULL && !Py_IgnoreEnvironmentFlag)
        home = Py_GETENV("PYTHONHOME");
    return home;
}

/* Create __main__ module */

static void
initmain(void)
{
    PyObject *m, *d;
    m = PyImport_AddModule("__main__");
    if (m == NULL)
        Py_FatalError("can't create __main__ module");
    d = PyModule_GetDict(m);
    if (PyDict_GetItemString(d, "__builtins__") == NULL) {
        PyObject *bimod = PyImport_ImportModule("__builtin__");
        if (bimod == NULL ||
            PyDict_SetItemString(d, "__builtins__", bimod) != 0)
            Py_FatalError("can't add __builtins__ to __main__");
        Py_XDECREF(bimod);
    }
}

/* Import the site module (not into __main__ though) */

static void
initsite(void)
{
    PyObject *m;
    m = PyImport_ImportModule("site");
    if (m == NULL) {
        PyErr_Print();
        Py_Finalize();
        exit(1);
    }
    else {
        Py_DECREF(m);
    }
}

/* Parse input from a file and execute it */

int
PyRun_AnyFileExFlags(FILE *fp, const char *filename, int closeit,
                     PyCompilerFlags *flags)
{
    if (filename == NULL)
        filename = "???";
    if (Py_FdIsInteractive(fp, filename)) {
        int err = PyRun_InteractiveLoopFlags(fp, filename, flags);
        if (closeit)
            fclose(fp);
        return err;
    }
    else
        return PyRun_SimpleFileExFlags(fp, filename, closeit, flags);
}

int
PyRun_InteractiveLoopFlags(FILE *fp, const char *filename, PyCompilerFlags *flags)
{
    PyObject *v;
    int ret;
    PyCompilerFlags local_flags;

    if (flags == NULL) {
        flags = &local_flags;
        local_flags.cf_flags = 0;
    }
    v = PySys_GetObject("ps1");
    if (v == NULL) {
        PySys_SetObject("ps1", v = PyString_FromString(">>> "));
        Py_XDECREF(v);
    }
    v = PySys_GetObject("ps2");
    if (v == NULL) {
        PySys_SetObject("ps2", v = PyString_FromString("... "));
        Py_XDECREF(v);
    }
    for (;;) {
        ret = PyRun_InteractiveOneFlags(fp, filename, flags);
        PRINT_TOTAL_REFS();
        if (ret == E_EOF)
            return 0;
        /*
        if (ret == E_NOMEM)
            return -1;
        */
    }
}

#if 0
/* compute parser flags based on compiler flags */
#define PARSER_FLAGS(flags) \
    ((flags) ? ((((flags)->cf_flags & PyCF_DONT_IMPLY_DEDENT) ? \
                  PyPARSE_DONT_IMPLY_DEDENT : 0)) : 0)
#endif
#if 1
/* Keep an example of flags with future keyword support. */
#define PARSER_FLAGS(flags) \
    ((flags) ? ((((flags)->cf_flags & PyCF_DONT_IMPLY_DEDENT) ? \
                  PyPARSE_DONT_IMPLY_DEDENT : 0) \
                | (((flags)->cf_flags & CO_FUTURE_PRINT_FUNCTION) ? \
                   PyPARSE_PRINT_IS_FUNCTION : 0) \
                | (((flags)->cf_flags & CO_FUTURE_UNICODE_LITERALS) ? \
                   PyPARSE_UNICODE_LITERALS : 0) \
                ) : 0)
#endif

int
PyRun_InteractiveOneFlags(FILE *fp, const char *filename, PyCompilerFlags *flags)
{
    PyObject *m, *d, *v, *w;
    mod_ty mod;
    PyArena *arena;
    char *ps1 = "", *ps2 = "";
    int errcode = 0;

    v = PySys_GetObject("ps1");
    if (v != NULL) {
        v = PyObject_Str(v);
        if (v == NULL)
            PyErr_Clear();
        else if (PyString_Check(v))
            ps1 = PyString_AsString(v);
    }
    w = PySys_GetObject("ps2");
    if (w != NULL) {
        w = PyObject_Str(w);
        if (w == NULL)
            PyErr_Clear();
        else if (PyString_Check(w))
            ps2 = PyString_AsString(w);
    }
    arena = PyArena_New();
    if (arena == NULL) {
        Py_XDECREF(v);
        Py_XDECREF(w);
        return -1;
    }
    mod = PyParser_ASTFromFile(fp, filename,
                               Py_single_input, ps1, ps2,
                               flags, &errcode, arena);
    Py_XDECREF(v);
    Py_XDECREF(w);
    if (mod == NULL) {
        PyArena_Free(arena);
        if (errcode == E_EOF) {
            PyErr_Clear();
            return E_EOF;
        }
        PyErr_Print();
        return -1;
    }
    m = PyImport_AddModule("__main__");
    if (m == NULL) {
        PyArena_Free(arena);
        return -1;
    }
    d = PyModule_GetDict(m);
    v = run_mod(mod, filename, d, d, flags, arena);
    PyArena_Free(arena);
    if (v == NULL) {
        PyErr_Print();
        return -1;
    }
    Py_DECREF(v);
    if (Py_FlushLine())
        PyErr_Clear();
    return 0;
}

/* Check whether a file maybe a pyc file: Look at the extension,
   the file type, and, if we may close it, at the first few bytes. */

static int
maybe_pyc_file(FILE *fp, const char* filename, const char* ext, int closeit)
{
    if (strcmp(ext, ".pyc") == 0 || strcmp(ext, ".pyo") == 0)
        return 1;

    /* Only look into the file if we are allowed to close it, since
       it then should also be seekable. */
    if (closeit) {
        /* Read only two bytes of the magic. If the file was opened in
           text mode, the bytes 3 and 4 of the magic (\r\n) might not
           be read as they are on disk. */
        unsigned int halfmagic = PyImport_GetMagicNumber() & 0xFFFF;
        unsigned char buf[2];
        /* Mess:  In case of -x, the stream is NOT at its start now,
           and ungetc() was used to push back the first newline,
           which makes the current stream position formally undefined,
           and a x-platform nightmare.
           Unfortunately, we have no direct way to know whether -x
           was specified.  So we use a terrible hack:  if the current
           stream position is not 0, we assume -x was specified, and
           give up.  Bug 132850 on SourceForge spells out the
           hopelessness of trying anything else (fseek and ftell
           don't work predictably x-platform for text-mode files).
        */
        int ispyc = 0;
        if (ftell(fp) == 0) {
            if (fread(buf, 1, 2, fp) == 2 &&
                ((unsigned int)buf[1]<<8 | buf[0]) == halfmagic)
                ispyc = 1;
            rewind(fp);
        }
        return ispyc;
    }
    return 0;
}

int
PyRun_SimpleFileExFlags(FILE *fp, const char *filename, int closeit,
                        PyCompilerFlags *flags)
{
    PyObject *m, *d, *v;
    const char *ext;
    int set_file_name = 0, len, ret = -1;

    m = PyImport_AddModule("__main__");
    if (m == NULL)
        return -1;
    Py_INCREF(m);
    d = PyModule_GetDict(m);
    if (PyDict_GetItemString(d, "__file__") == NULL) {
        PyObject *f = PyString_FromString(filename);
        if (f == NULL)
            goto done;
        if (PyDict_SetItemString(d, "__file__", f) < 0) {
            Py_DECREF(f);
            goto done;
        }
        set_file_name = 1;
        Py_DECREF(f);
    }
    len = strlen(filename);
    ext = filename + len - (len > 4 ? 4 : 0);
    if (maybe_pyc_file(fp, filename, ext, closeit)) {
        /* Try to run a pyc file. First, re-open in binary */
        if (closeit)
            fclose(fp);
        if ((fp = fopen(filename, "rb")) == NULL) {
            fprintf(stderr, "python: Can't reopen .pyc file\n");
            goto done;
        }
        /* Turn on optimization if a .pyo file is given */
        if (strcmp(ext, ".pyo") == 0)
            Py_OptimizeFlag = 1;
        v = run_pyc_file(fp, filename, d, d, flags);
    } else {
        v = PyRun_FileExFlags(fp, filename, Py_file_input, d, d,
                              closeit, flags);
    }
    if (v == NULL) {
        PyErr_Print();
        goto done;
    }
    Py_DECREF(v);
    if (Py_FlushLine())
        PyErr_Clear();
    ret = 0;
  done:
    if (set_file_name && PyDict_DelItemString(d, "__file__"))
        PyErr_Clear();
    Py_DECREF(m);
    return ret;
}

int
PyRun_SimpleStringFlags(const char *command, PyCompilerFlags *flags)
{
    PyObject *m, *d, *v;
    m = PyImport_AddModule("__main__");
    if (m == NULL)
        return -1;
    d = PyModule_GetDict(m);
    v = PyRun_StringFlags(command, Py_file_input, d, d, flags);
    if (v == NULL) {
        PyErr_Print();
        return -1;
    }
    Py_DECREF(v);
    if (Py_FlushLine())
        PyErr_Clear();
    return 0;
}

static int
parse_syntax_error(PyObject *err, PyObject **message, const char **filename,
                   int *lineno, int *offset, const char **text)
{
    long hold;
    PyObject *v;

    /* old style errors */
    if (PyTuple_Check(err))
        return PyArg_ParseTuple(err, "O(ziiz)", message, filename,
                                lineno, offset, text);

    *message = NULL;

    /* new style errors.  `err' is an instance */
    *message = PyObject_GetAttrString(err, "msg");
    if (!*message)
        goto finally;

    v = PyObject_GetAttrString(err, "filename");
    if (!v)
        goto finally;
    if (v == Py_None) {
        Py_DECREF(v);
        *filename = NULL;
    }
    else {
        *filename = PyString_AsString(v);
        Py_DECREF(v);
        if (!*filename)
            goto finally;
    }

    v = PyObject_GetAttrString(err, "lineno");
    if (!v)
        goto finally;
    hold = PyInt_AsLong(v);
    Py_DECREF(v);
    if (hold < 0 && PyErr_Occurred())
        goto finally;
    *lineno = (int)hold;

    v = PyObject_GetAttrString(err, "offset");
    if (!v)
        goto finally;
    if (v == Py_None) {
        *offset = -1;
        Py_DECREF(v);
    } else {
        hold = PyInt_AsLong(v);
        Py_DECREF(v);
        if (hold < 0 && PyErr_Occurred())
            goto finally;
        *offset = (int)hold;
    }

    v = PyObject_GetAttrString(err, "text");
    if (!v)
        goto finally;
    if (v == Py_None) {
        Py_DECREF(v);
        *text = NULL;
    }
    else {
        *text = PyString_AsString(v);
        Py_DECREF(v);
        if (!*text)
            goto finally;
    }
    return 1;

finally:
    Py_XDECREF(*message);
    return 0;
}

void
PyErr_Print(void)
{
    PyErr_PrintEx(1);
}

static void
print_error_text(PyObject *f, int offset, const char *text)
{
    char *nl;
    if (offset >= 0) {
        if (offset > 0 && offset == strlen(text) && text[offset - 1] == '\n')
            offset--;
        for (;;) {
            nl = strchr(text, '\n');
            if (nl == NULL || nl-text >= offset)
                break;
            offset -= (int)(nl+1-text);
            text = nl+1;
        }
        while (*text == ' ' || *text == '\t') {
            text++;
            offset--;
        }
    }
    PyFile_WriteString("    ", f);
    PyFile_WriteString(text, f);
    if (*text == '\0' || text[strlen(text)-1] != '\n')
        PyFile_WriteString("\n", f);
    if (offset == -1)
        return;
    PyFile_WriteString("    ", f);
    offset--;
    while (offset > 0) {
        PyFile_WriteString(" ", f);
        offset--;
    }
    PyFile_WriteString("^\n", f);
}

static void
handle_system_exit(void)
{
    PyObject *exception, *value, *tb;
    int exitcode = 0;

    if (Py_InspectFlag)
        /* Don't exit if -i flag was given. This flag is set to 0
         * when entering interactive mode for inspecting. */
        return;

    PyErr_Fetch(&exception, &value, &tb);
    if (Py_FlushLine())
        PyErr_Clear();
    fflush(stdout);
    if (value == NULL || value == Py_None)
        goto done;
    if (PyExceptionInstance_Check(value)) {
        /* The error code should be in the `code' attribute. */
        PyObject *code = PyObject_GetAttrString(value, "code");
        if (code) {
            Py_DECREF(value);
            value = code;
            if (value == Py_None)
                goto done;
        }
        /* If we failed to dig out the 'code' attribute,
           just let the else clause below print the error. */
    }
    if (PyInt_Check(value))
        exitcode = (int)PyInt_AsLong(value);
    else {
        PyObject *sys_stderr = PySys_GetObject("stderr");
        if (sys_stderr != NULL && sys_stderr != Py_None) {
            PyFile_WriteObject(value, sys_stderr, Py_PRINT_RAW);
        } else {
            PyObject_Print(value, stderr, Py_PRINT_RAW);
            fflush(stderr);
        }
        PySys_WriteStderr("\n");
        exitcode = 1;
    }
 done:
    /* Restore and clear the exception info, in order to properly decref
     * the exception, value, and traceback.      If we just exit instead,
     * these leak, which confuses PYTHONDUMPREFS output, and may prevent
     * some finalizers from running.
     */
    PyErr_Restore(exception, value, tb);
    PyErr_Clear();
    Py_Exit(exitcode);
    /* NOTREACHED */
}

void
PyErr_PrintEx(int set_sys_last_vars)
{
    PyObject *exception, *v, *tb, *hook;

    if (PyErr_ExceptionMatches(PyExc_SystemExit)) {
        handle_system_exit();
    }
    PyErr_Fetch(&exception, &v, &tb);
    if (exception == NULL)
        return;
    PyErr_NormalizeException(&exception, &v, &tb);
    if (exception == NULL)
        return;
    /* Now we know v != NULL too */
    if (set_sys_last_vars) {
        PySys_SetObject("last_type", exception);
        PySys_SetObject("last_value", v);
        PySys_SetObject("last_traceback", tb);
    }
    hook = PySys_GetObject("excepthook");
    if (hook && hook != Py_None) {
        PyObject *args = PyTuple_Pack(3,
            exception, v, tb ? tb : Py_None);
        PyObject *result = PyEval_CallObject(hook, args);
        if (result == NULL) {
            PyObject *exception2, *v2, *tb2;
            if (PyErr_ExceptionMatches(PyExc_SystemExit)) {
                handle_system_exit();
            }
            PyErr_Fetch(&exception2, &v2, &tb2);
            PyErr_NormalizeException(&exception2, &v2, &tb2);
            /* It should not be possible for exception2 or v2
               to be NULL. However PyErr_Display() can't
               tolerate NULLs, so just be safe. */
            if (exception2 == NULL) {
                exception2 = Py_None;
                Py_INCREF(exception2);
            }
            if (v2 == NULL) {
                v2 = Py_None;
                Py_INCREF(v2);
            }
            if (Py_FlushLine())
                PyErr_Clear();
            fflush(stdout);
            PySys_WriteStderr("Error in sys.excepthook:\n");
            PyErr_Display(exception2, v2, tb2);
            PySys_WriteStderr("\nOriginal exception was:\n");
            PyErr_Display(exception, v, tb);
            Py_DECREF(exception2);
            Py_DECREF(v2);
            Py_XDECREF(tb2);
        }
        Py_XDECREF(result);
        Py_XDECREF(args);
    } else {
        PySys_WriteStderr("sys.excepthook is missing\n");
        PyErr_Display(exception, v, tb);
    }
    Py_XDECREF(exception);
    Py_XDECREF(v);
    Py_XDECREF(tb);
}

void
PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb)
{
    int err = 0;
    PyObject *f = PySys_GetObject("stderr");
    Py_INCREF(value);
    if (f == NULL || f == Py_None)
        fprintf(stderr, "lost sys.stderr\n");
    else {
        if (Py_FlushLine())
            PyErr_Clear();
        fflush(stdout);
        if (tb && tb != Py_None)
            err = PyTraceBack_Print(tb, f);
        if (err == 0 &&
            PyObject_HasAttrString(value, "print_file_and_line"))
        {
            PyObject *message;
            const char *filename, *text;
            int lineno, offset;
            if (!parse_syntax_error(value, &message, &filename,
                                    &lineno, &offset, &text))
                PyErr_Clear();
            else {
                char buf[10];
                PyFile_WriteString("  File \"", f);
                if (filename == NULL)
                    PyFile_WriteString("<string>", f);
                else
                    PyFile_WriteString(filename, f);
                PyFile_WriteString("\", line ", f);
                PyOS_snprintf(buf, sizeof(buf), "%d", lineno);
                PyFile_WriteString(buf, f);
                PyFile_WriteString("\n", f);
                if (text != NULL)
                    print_error_text(f, offset, text);
                Py_DECREF(value);
                value = message;
                /* Can't be bothered to check all those
                   PyFile_WriteString() calls */
                if (PyErr_Occurred())
                    err = -1;
            }
        }
        if (err) {
            /* Don't do anything else */
        }
        else if (PyExceptionClass_Check(exception)) {
            PyObject* moduleName;
            char* className = PyExceptionClass_Name(exception);
            if (className != NULL) {
                char *dot = strrchr(className, '.');
                if (dot != NULL)
                    className = dot+1;
            }

            moduleName = PyObject_GetAttrString(exception, "__module__");
            if (moduleName == NULL)
                err = PyFile_WriteString("<unknown>", f);
            else {
                char* modstr = PyString_AsString(moduleName);
                if (modstr && strcmp(modstr, "exceptions"))
                {
                    err = PyFile_WriteString(modstr, f);
                    err += PyFile_WriteString(".", f);
                }
                Py_DECREF(moduleName);
            }
            if (err == 0) {
                if (className == NULL)
                      err = PyFile_WriteString("<unknown>", f);
                else
                      err = PyFile_WriteString(className, f);
            }
        }
        else
            err = PyFile_WriteObject(exception, f, Py_PRINT_RAW);
        if (err == 0 && (value != Py_None)) {
            PyObject *s = PyObject_Str(value);
            /* only print colon if the str() of the
               object is not the empty string
            */
            if (s == NULL) {
                PyErr_Clear();
                err = -1;
                PyFile_WriteString(": <exception str() failed>", f);
            }
            else if (!PyString_Check(s) ||
                     PyString_GET_SIZE(s) != 0)
                err = PyFile_WriteString(": ", f);
            if (err == 0)
              err = PyFile_WriteObject(s, f, Py_PRINT_RAW);
            Py_XDECREF(s);
        }
        /* try to write a newline in any case */
        if (err < 0) {
            PyErr_Clear();
        }
        err += PyFile_WriteString("\n", f);
    }
    Py_DECREF(value);
    /* If an error happened here, don't show it.
       XXX This is wrong, but too many callers rely on this behavior. */
    if (err != 0)
        PyErr_Clear();
}

PyObject *
PyRun_StringFlags(const char *str, int start, PyObject *globals,
                  PyObject *locals, PyCompilerFlags *flags)
{
    PyObject *ret = NULL;
    mod_ty mod;
    PyArena *arena = PyArena_New();
    if (arena == NULL)
        return NULL;

    mod = PyParser_ASTFromString(str, "<string>", start, flags, arena);
    if (mod != NULL)
        ret = run_mod(mod, "<string>", globals, locals, flags, arena);
    PyArena_Free(arena);
    return ret;
}

PyObject *
PyRun_FileExFlags(FILE *fp, const char *filename, int start, PyObject *globals,
                  PyObject *locals, int closeit, PyCompilerFlags *flags)
{
    PyObject *ret;
    mod_ty mod;
    PyArena *arena = PyArena_New();
    if (arena == NULL)
        return NULL;

    mod = PyParser_ASTFromFile(fp, filename, start, 0, 0,
                               flags, NULL, arena);
    if (closeit)
        fclose(fp);
    if (mod == NULL) {
        PyArena_Free(arena);
        return NULL;
    }
    ret = run_mod(mod, filename, globals, locals, flags, arena);
    PyArena_Free(arena);
    return ret;
}

static PyObject *
run_mod(mod_ty mod, const char *filename, PyObject *globals, PyObject *locals,
         PyCompilerFlags *flags, PyArena *arena)
{
    PyCodeObject *co;
    PyObject *v;
    co = PyAST_Compile(mod, filename, flags, arena);
    if (co == NULL)
        return NULL;
    v = PyEval_EvalCode(co, globals, locals);
    Py_DECREF(co);
    return v;
}

static PyObject *
run_pyc_file(FILE *fp, const char *filename, PyObject *globals,
             PyObject *locals, PyCompilerFlags *flags)
{
    PyCodeObject *co;
    PyObject *v;
    long magic;
    long PyImport_GetMagicNumber(void);

    magic = PyMarshal_ReadLongFromFile(fp);
    if (magic != PyImport_GetMagicNumber()) {
        PyErr_SetString(PyExc_RuntimeError,
                   "Bad magic number in .pyc file");
        return NULL;
    }
    (void) PyMarshal_ReadLongFromFile(fp);
    v = PyMarshal_ReadLastObjectFromFile(fp);
    fclose(fp);
    if (v == NULL || !PyCode_Check(v)) {
        Py_XDECREF(v);
        PyErr_SetString(PyExc_RuntimeError,
                   "Bad code object in .pyc file");
        return NULL;
    }
    co = (PyCodeObject *)v;
    v = PyEval_EvalCode(co, globals, locals);
    if (v && flags)
        flags->cf_flags |= (co->co_flags & PyCF_MASK);
    Py_DECREF(co);
    return v;
}

PyObject *
Py_CompileStringFlags(const char *str, const char *filename, int start,
                      PyCompilerFlags *flags)
{
    PyCodeObject *co;
    mod_ty mod;
    PyArena *arena = PyArena_New();
    if (arena == NULL)
        return NULL;

    mod = PyParser_ASTFromString(str, filename, start, flags, arena);
    if (mod == NULL) {
        PyArena_Free(arena);
        return NULL;
    }
    if (flags && (flags->cf_flags & PyCF_ONLY_AST)) {
        PyObject *result = PyAST_mod2obj(mod);
        PyArena_Free(arena);
        return result;
    }
    co = PyAST_Compile(mod, filename, flags, arena);
    PyArena_Free(arena);
    return (PyObject *)co;
}

struct symtable *
Py_SymtableString(const char *str, const char *filename, int start)
{
    struct symtable *st;
    mod_ty mod;
    PyCompilerFlags flags;
    PyArena *arena = PyArena_New();
    if (arena == NULL)
        return NULL;

    flags.cf_flags = 0;

    mod = PyParser_ASTFromString(str, filename, start, &flags, arena);
    if (mod == NULL) {
        PyArena_Free(arena);
        return NULL;
    }
    st = PySymtable_Build(mod, filename, 0);
    PyArena_Free(arena);
    return st;
}

/* Preferred access to parser is through AST. */
mod_ty
PyParser_ASTFromString(const char *s, const char *filename, int start,
                       PyCompilerFlags *flags, PyArena *arena)
{
    mod_ty mod;
    PyCompilerFlags localflags;
    perrdetail err;
    int iflags = PARSER_FLAGS(flags);

    node *n = PyParser_ParseStringFlagsFilenameEx(s, filename,
                                    &_PyParser_Grammar, start, &err,
                                    &iflags);
    if (flags == NULL) {
        localflags.cf_flags = 0;
        flags = &localflags;
    }
    if (n) {
        flags->cf_flags |= iflags & PyCF_MASK;
        mod = PyAST_FromNode(n, flags, filename, arena);
        PyNode_Free(n);
        return mod;
    }
    else {
        err_input(&err);
        return NULL;
    }
}

mod_ty
PyParser_ASTFromFile(FILE *fp, const char *filename, int start, char *ps1,
                     char *ps2, PyCompilerFlags *flags, int *errcode,
                     PyArena *arena)
{
    mod_ty mod;
    PyCompilerFlags localflags;
    perrdetail err;
    int iflags = PARSER_FLAGS(flags);

    node *n = PyParser_ParseFileFlagsEx(fp, filename, &_PyParser_Grammar,
                            start, ps1, ps2, &err, &iflags);
    if (flags == NULL) {
        localflags.cf_flags = 0;
        flags = &localflags;
    }
    if (n) {
        flags->cf_flags |= iflags & PyCF_MASK;
        mod = PyAST_FromNode(n, flags, filename, arena);
        PyNode_Free(n);
        return mod;
    }
    else {
        err_input(&err);
        if (errcode)
            *errcode = err.error;
        return NULL;
    }
}

/* Simplified interface to parsefile -- return node or set exception */

node *
PyParser_SimpleParseFileFlags(FILE *fp, const char *filename, int start, int flags)
{
    perrdetail err;
    node *n = PyParser_ParseFileFlags(fp, filename, &_PyParser_Grammar,
                                      start, NULL, NULL, &err, flags);
    if (n == NULL)
        err_input(&err);

    return n;
}

/* Simplified interface to parsestring -- return node or set exception */

node *
PyParser_SimpleParseStringFlags(const char *str, int start, int flags)
{
    perrdetail err;
    node *n = PyParser_ParseStringFlags(str, &_PyParser_Grammar,
                                        start, &err, flags);
    if (n == NULL)
        err_input(&err);
    return n;
}

node *
PyParser_SimpleParseStringFlagsFilename(const char *str, const char *filename,
                                        int start, int flags)
{
    perrdetail err;
    node *n = PyParser_ParseStringFlagsFilename(str, filename,
                            &_PyParser_Grammar, start, &err, flags);
    if (n == NULL)
        err_input(&err);
    return n;
}

node *
PyParser_SimpleParseStringFilename(const char *str, const char *filename, int start)
{
    return PyParser_SimpleParseStringFlagsFilename(str, filename, start, 0);
}

/* May want to move a more generalized form of this to parsetok.c or
   even parser modules. */

void
PyParser_SetError(perrdetail *err)
{
    err_input(err);
}

/* Set the error appropriate to the given input error code (see errcode.h) */

static void
err_input(perrdetail *err)
{
    PyObject *v, *w, *errtype;
    PyObject* u = NULL;
    char *msg = NULL;
    errtype = PyExc_SyntaxError;
    switch (err->error) {
    case E_ERROR:
        return;
    case E_SYNTAX:
        errtype = PyExc_IndentationError;
        if (err->expected == INDENT)
            msg = "expected an indented block";
        else if (err->token == INDENT)
            msg = "unexpected indent";
        else if (err->token == DEDENT)
            msg = "unexpected unindent";
        else {
            errtype = PyExc_SyntaxError;
            msg = "invalid syntax";
        }
        break;
    case E_TOKEN:
        msg = "invalid token";
        break;
    case E_EOFS:
        msg = "EOF while scanning triple-quoted string literal";
        break;
    case E_EOLS:
        msg = "EOL while scanning string literal";
        break;
    case E_INTR:
        if (!PyErr_Occurred())
            PyErr_SetNone(PyExc_KeyboardInterrupt);
        goto cleanup;
    case E_NOMEM:
        PyErr_NoMemory();
        goto cleanup;
    case E_EOF:
        msg = "unexpected EOF while parsing";
        break;
    case E_TABSPACE:
        errtype = PyExc_TabError;
        msg = "inconsistent use of tabs and spaces in indentation";
        break;
    case E_OVERFLOW:
        msg = "expression too long";
        break;
    case E_DEDENT:
        errtype = PyExc_IndentationError;
        msg = "unindent does not match any outer indentation level";
        break;
    case E_TOODEEP:
        errtype = PyExc_IndentationError;
        msg = "too many levels of indentation";
        break;
    case E_DECODE: {
        PyObject *type, *value, *tb;
        PyErr_Fetch(&type, &value, &tb);
        if (value != NULL) {
            u = PyObject_Str(value);
            if (u != NULL) {
                msg = PyString_AsString(u);
            }
        }
        if (msg == NULL)
            msg = "unknown decode error";
        Py_XDECREF(type);
        Py_XDECREF(value);
        Py_XDECREF(tb);
        break;
    }
    case E_LINECONT:
        msg = "unexpected character after line continuation character";
        break;
    default:
        fprintf(stderr, "error=%d\n", err->error);
        msg = "unknown parsing error";
        break;
    }
    v = Py_BuildValue("(ziiz)", err->filename,
                      err->lineno, err->offset, err->text);
    w = NULL;
    if (v != NULL)
        w = Py_BuildValue("(sO)", msg, v);
    Py_XDECREF(u);
    Py_XDECREF(v);
    PyErr_SetObject(errtype, w);
    Py_XDECREF(w);
cleanup:
    if (err->text != NULL) {
        PyObject_FREE(err->text);
        err->text = NULL;
    }
}

/* Print fatal error message and abort */

void
Py_FatalError(const char *msg)
{
    fprintf(stderr, "Fatal Python error: %s\n", msg);
    fflush(stderr); /* it helps in Windows debug build */

#ifdef MS_WINDOWS
    {
        size_t len = strlen(msg);
        WCHAR* buffer;
        size_t i;

        /* Convert the message to wchar_t. This uses a simple one-to-one
        conversion, assuming that the this error message actually uses ASCII
        only. If this ceases to be true, we will have to convert. */
        buffer = alloca( (len+1) * (sizeof *buffer));
        for( i=0; i<=len; ++i)
            buffer[i] = msg[i];
        OutputDebugStringW(L"Fatal Python error: ");
        OutputDebugStringW(buffer);
        OutputDebugStringW(L"\n");
    }
#ifdef _DEBUG
    DebugBreak();
#endif
#endif /* MS_WINDOWS */
    abort();
}

/* Clean up and exit */

#ifdef WITH_THREAD
#include "pythread.h"
#endif

/* Wait until threading._shutdown completes, provided
   the threading module was imported in the first place.
   The shutdown routine will wait until all non-daemon
   "threading" threads have completed. */
static void
wait_for_thread_shutdown(void)
{
#ifdef WITH_THREAD
    PyObject *result;
    PyThreadState *tstate = PyThreadState_GET();
    PyObject *threading = PyMapping_GetItemString(tstate->interp->modules,
                                                  "threading");
    if (threading == NULL) {
        /* threading not imported */
        PyErr_Clear();
        return;
    }
    result = PyObject_CallMethod(threading, "_shutdown", "");
    if (result == NULL)
        PyErr_WriteUnraisable(threading);
    else
        Py_DECREF(result);
    Py_DECREF(threading);
#endif
}

#define NEXITFUNCS 32
static void (*exitfuncs[NEXITFUNCS])(void);
static int nexitfuncs = 0;

int Py_AtExit(void (*func)(void))
{
    if (nexitfuncs >= NEXITFUNCS)
        return -1;
    exitfuncs[nexitfuncs++] = func;
    return 0;
}

static void
call_sys_exitfunc(void)
{
    PyObject *exitfunc = PySys_GetObject("exitfunc");

    if (exitfunc) {
        PyObject *res;
        Py_INCREF(exitfunc);
        PySys_SetObject("exitfunc", (PyObject *)NULL);
        res = PyEval_CallObject(exitfunc, (PyObject *)NULL);
        if (res == NULL) {
            if (!PyErr_ExceptionMatches(PyExc_SystemExit)) {
                PySys_WriteStderr("Error in sys.exitfunc:\n");
            }
            PyErr_Print();
        }
        Py_DECREF(exitfunc);
    }

    if (Py_FlushLine())
        PyErr_Clear();
}

static void
call_ll_exitfuncs(void)
{
    while (nexitfuncs > 0)
        (*exitfuncs[--nexitfuncs])();

    fflush(stdout);
    fflush(stderr);
}

void
Py_Exit(int sts)
{
    Py_Finalize();

    exit(sts);
}

static void
initsigs(void)
{
#ifdef SIGPIPE
    PyOS_setsig(SIGPIPE, SIG_IGN);
#endif
#ifdef SIGXFZ
    PyOS_setsig(SIGXFZ, SIG_IGN);
#endif
#ifdef SIGXFSZ
    PyOS_setsig(SIGXFSZ, SIG_IGN);
#endif
    PyOS_InitInterrupts(); /* May imply initsignal() */
}


/*
 * The file descriptor fd is considered ``interactive'' if either
 *   a) isatty(fd) is TRUE, or
 *   b) the -i flag was given, and the filename associated with
 *      the descriptor is NULL or "<stdin>" or "???".
 */
int
Py_FdIsInteractive(FILE *fp, const char *filename)
{
    if (isatty((int)fileno(fp)))
        return 1;
    if (!Py_InteractiveFlag)
        return 0;
    return (filename == NULL) ||
           (strcmp(filename, "<stdin>") == 0) ||
           (strcmp(filename, "???") == 0);
}


#if defined(USE_STACKCHECK)
#if defined(WIN32) && defined(_MSC_VER)

/* Stack checking for Microsoft C */

#include <malloc.h>
#include <excpt.h>

/*
 * Return non-zero when we run out of memory on the stack; zero otherwise.
 */
int
PyOS_CheckStack(void)
{
    __try {
        /* alloca throws a stack overflow exception if there's
           not enough space left on the stack */
        alloca(PYOS_STACK_MARGIN * sizeof(void*));
        return 0;
    } __except (GetExceptionCode() == STATUS_STACK_OVERFLOW ?
                    EXCEPTION_EXECUTE_HANDLER :
            EXCEPTION_CONTINUE_SEARCH) {
        int errcode = _resetstkoflw();
        if (errcode == 0)
        {
            Py_FatalError("Could not reset the stack!");
        }
    }
    return 1;
}

#endif /* WIN32 && _MSC_VER */

/* Alternate implementations can be added here... */

#endif /* USE_STACKCHECK */


/* Wrappers around sigaction() or signal(). */

PyOS_sighandler_t
PyOS_getsig(int sig)
{
#ifdef HAVE_SIGACTION
    struct sigaction context;
    if (sigaction(sig, NULL, &context) == -1)
        return SIG_ERR;
    return context.sa_handler;
#else
    PyOS_sighandler_t handler;
/* Special signal handling for the secure CRT in Visual Studio 2005 */
#if defined(_MSC_VER) && _MSC_VER >= 1400
    switch (sig) {
    /* Only these signals are valid */
    case SIGINT:
    case SIGILL:
    case SIGFPE:
    case SIGSEGV:
    case SIGTERM:
    case SIGBREAK:
    case SIGABRT:
        break;
    /* Don't call signal() with other values or it will assert */
    default:
        return SIG_ERR;
    }
#endif /* _MSC_VER && _MSC_VER >= 1400 */
    handler = signal(sig, SIG_IGN);
    if (handler != SIG_ERR)
        signal(sig, handler);
    return handler;
#endif
}

PyOS_sighandler_t
PyOS_setsig(int sig, PyOS_sighandler_t handler)
{
#ifdef HAVE_SIGACTION
    /* Some code in Modules/signalmodule.c depends on sigaction() being
     * used here if HAVE_SIGACTION is defined.  Fix that if this code
     * changes to invalidate that assumption.
     */
    struct sigaction context, ocontext;
    context.sa_handler = handler;
    sigemptyset(&context.sa_mask);
    context.sa_flags = 0;
    if (sigaction(sig, &context, &ocontext) == -1)
        return SIG_ERR;
    return ocontext.sa_handler;
#else
    PyOS_sighandler_t oldhandler;
    oldhandler = signal(sig, handler);
#ifdef HAVE_SIGINTERRUPT
    siginterrupt(sig, 1);
#endif
    return oldhandler;
#endif
}

/* Deprecated C API functions still provided for binary compatibility */

#undef PyParser_SimpleParseFile
PyAPI_FUNC(node *)
PyParser_SimpleParseFile(FILE *fp, const char *filename, int start)
{
    return PyParser_SimpleParseFileFlags(fp, filename, start, 0);
}

#undef PyParser_SimpleParseString
PyAPI_FUNC(node *)
PyParser_SimpleParseString(const char *str, int start)
{
    return PyParser_SimpleParseStringFlags(str, start, 0);
}

#undef PyRun_AnyFile
PyAPI_FUNC(int)
PyRun_AnyFile(FILE *fp, const char *name)
{
    return PyRun_AnyFileExFlags(fp, name, 0, NULL);
}

#undef PyRun_AnyFileEx
PyAPI_FUNC(int)
PyRun_AnyFileEx(FILE *fp, const char *name, int closeit)
{
    return PyRun_AnyFileExFlags(fp, name, closeit, NULL);
}

#undef PyRun_AnyFileFlags
PyAPI_FUNC(int)
PyRun_AnyFileFlags(FILE *fp, const char *name, PyCompilerFlags *flags)
{
    return PyRun_AnyFileExFlags(fp, name, 0, flags);
}

#undef PyRun_File
PyAPI_FUNC(PyObject *)
PyRun_File(FILE *fp, const char *p, int s, PyObject *g, PyObject *l)
{
    return PyRun_FileExFlags(fp, p, s, g, l, 0, NULL);
}

#undef PyRun_FileEx
PyAPI_FUNC(PyObject *)
PyRun_FileEx(FILE *fp, const char *p, int s, PyObject *g, PyObject *l, int c)
{
    return PyRun_FileExFlags(fp, p, s, g, l, c, NULL);
}

#undef PyRun_FileFlags
PyAPI_FUNC(PyObject *)
PyRun_FileFlags(FILE *fp, const char *p, int s, PyObject *g, PyObject *l,
                PyCompilerFlags *flags)
{
    return PyRun_FileExFlags(fp, p, s, g, l, 0, flags);
}

#undef PyRun_SimpleFile
PyAPI_FUNC(int)
PyRun_SimpleFile(FILE *f, const char *p)
{
    return PyRun_SimpleFileExFlags(f, p, 0, NULL);
}

#undef PyRun_SimpleFileEx
PyAPI_FUNC(int)
PyRun_SimpleFileEx(FILE *f, const char *p, int c)
{
    return PyRun_SimpleFileExFlags(f, p, c, NULL);
}


#undef PyRun_String
PyAPI_FUNC(PyObject *)
PyRun_String(const char *str, int s, PyObject *g, PyObject *l)
{
    return PyRun_StringFlags(str, s, g, l, NULL);
}

#undef PyRun_SimpleString
PyAPI_FUNC(int)
PyRun_SimpleString(const char *s)
{
    return PyRun_SimpleStringFlags(s, NULL);
}

#undef Py_CompileString
PyAPI_FUNC(PyObject *)
Py_CompileString(const char *str, const char *p, int s)
{
    return Py_CompileStringFlags(str, p, s, NULL);
}

#undef PyRun_InteractiveOne
PyAPI_FUNC(int)
PyRun_InteractiveOne(FILE *f, const char *p)
{
    return PyRun_InteractiveOneFlags(f, p, NULL);
}

#undef PyRun_InteractiveLoop
PyAPI_FUNC(int)
PyRun_InteractiveLoop(FILE *f, const char *p)
{
    return PyRun_InteractiveLoopFlags(f, p, NULL);
}

#ifdef __cplusplus
}
#endif