diff options
Diffstat (limited to 'source/Host/common/HostInfoBase.cpp')
| -rw-r--r-- | source/Host/common/HostInfoBase.cpp | 269 |
1 files changed, 160 insertions, 109 deletions
diff --git a/source/Host/common/HostInfoBase.cpp b/source/Host/common/HostInfoBase.cpp index d65b796983842..9816c1ebf0806 100644 --- a/source/Host/common/HostInfoBase.cpp +++ b/source/Host/common/HostInfoBase.cpp @@ -23,60 +23,56 @@ #include "llvm/Support/raw_ostream.h" #include <thread> +#include <mutex> // std::once using namespace lldb; using namespace lldb_private; namespace { -void -CleanupProcessSpecificLLDBTempDir() -{ - // Get the process specific LLDB temporary directory and delete it. - FileSpec tmpdir_file_spec; - if (!HostInfo::GetLLDBPath(ePathTypeLLDBTempSystemDir, tmpdir_file_spec)) - return; - - // Remove the LLDB temporary directory if we have one. Set "recurse" to - // true to all files that were created for the LLDB process can be cleaned up. - FileSystem::DeleteDirectory(tmpdir_file_spec.GetDirectory().GetCString(), true); -} + void + CleanupProcessSpecificLLDBTempDir() + { + // Get the process specific LLDB temporary directory and delete it. + FileSpec tmpdir_file_spec; + if (!HostInfo::GetLLDBPath(ePathTypeLLDBTempSystemDir, tmpdir_file_spec)) + return; + + // Remove the LLDB temporary directory if we have one. Set "recurse" to + // true to all files that were created for the LLDB process can be cleaned up. + FileSystem::DeleteDirectory(tmpdir_file_spec.GetDirectory().GetCString(), true); + } -struct HostInfoBaseFields -{ - uint32_t m_number_cpus; - std::string m_vendor_string; - std::string m_os_string; - std::string m_host_triple; - - ArchSpec m_host_arch_32; - ArchSpec m_host_arch_64; - - FileSpec m_lldb_so_dir; - FileSpec m_lldb_support_exe_dir; - FileSpec m_lldb_headers_dir; - FileSpec m_lldb_python_dir; - FileSpec m_lldb_clang_resource_dir; - FileSpec m_lldb_system_plugin_dir; - FileSpec m_lldb_user_plugin_dir; - FileSpec m_lldb_tmp_dir; -}; - -HostInfoBaseFields *g_fields = nullptr; -} + //---------------------------------------------------------------------- + // The HostInfoBaseFields is a work around for windows not supporting + // static variables correctly in a thread safe way. Really each of the + // variables in HostInfoBaseFields should live in the functions in which + // they are used and each one should be static, but the work around is + // in place to avoid this restriction. Ick. + //---------------------------------------------------------------------- -#define COMPUTE_LLDB_PATH(compute_function, member_var) \ - { \ - static bool is_initialized = false; \ - static bool success = false; \ - if (!is_initialized) \ - { \ - is_initialized = true; \ - success = HostInfo::compute_function(member_var); \ - } \ - if (success) \ - result = &member_var; \ - } + struct HostInfoBaseFields + { + uint32_t m_number_cpus; + std::string m_vendor_string; + std::string m_os_string; + std::string m_host_triple; + + ArchSpec m_host_arch_32; + ArchSpec m_host_arch_64; + + FileSpec m_lldb_so_dir; + FileSpec m_lldb_support_exe_dir; + FileSpec m_lldb_headers_dir; + FileSpec m_lldb_python_dir; + FileSpec m_lldb_clang_resource_dir; + FileSpec m_lldb_system_plugin_dir; + FileSpec m_lldb_user_plugin_dir; + FileSpec m_lldb_tmp_dir; + }; + + HostInfoBaseFields *g_fields = nullptr; +} void HostInfoBase::Initialize() @@ -87,13 +83,10 @@ HostInfoBase::Initialize() uint32_t HostInfoBase::GetNumberCPUS() { - static bool is_initialized = false; - if (!is_initialized) - { + static std::once_flag g_once_flag; + std::call_once(g_once_flag, []() { g_fields->m_number_cpus = std::thread::hardware_concurrency(); - is_initialized = true; - } - + }); return g_fields->m_number_cpus; } @@ -106,53 +99,40 @@ HostInfoBase::GetMaxThreadNameLength() llvm::StringRef HostInfoBase::GetVendorString() { - static bool is_initialized = false; - if (!is_initialized) - { - const ArchSpec &host_arch = HostInfo::GetArchitecture(); - const llvm::StringRef &str_ref = host_arch.GetTriple().getVendorName(); - g_fields->m_vendor_string.assign(str_ref.begin(), str_ref.end()); - is_initialized = true; - } + static std::once_flag g_once_flag; + std::call_once(g_once_flag, []() { + g_fields->m_vendor_string = std::move(HostInfo::GetArchitecture().GetTriple().getVendorName().str()); + }); return g_fields->m_vendor_string; } llvm::StringRef HostInfoBase::GetOSString() { - static bool is_initialized = false; - if (!is_initialized) - { - const ArchSpec &host_arch = HostInfo::GetArchitecture(); - const llvm::StringRef &str_ref = host_arch.GetTriple().getOSName(); - g_fields->m_os_string.assign(str_ref.begin(), str_ref.end()); - is_initialized = true; - } + static std::once_flag g_once_flag; + std::call_once(g_once_flag, []() { + g_fields->m_os_string = std::move(HostInfo::GetArchitecture().GetTriple().getOSName()); + }); return g_fields->m_os_string; } llvm::StringRef HostInfoBase::GetTargetTriple() { - static bool is_initialized = false; - if (!is_initialized) - { - const ArchSpec &host_arch = HostInfo::GetArchitecture(); - g_fields->m_host_triple = host_arch.GetTriple().getTriple(); - is_initialized = true; - } + static std::once_flag g_once_flag; + std::call_once(g_once_flag, []() { + g_fields->m_host_triple = HostInfo::GetArchitecture().GetTriple().getTriple(); + }); return g_fields->m_host_triple; } const ArchSpec & HostInfoBase::GetArchitecture(ArchitectureKind arch_kind) { - static bool is_initialized = false; - if (!is_initialized) - { + static std::once_flag g_once_flag; + std::call_once(g_once_flag, []() { HostInfo::ComputeHostArchitectureSupport(g_fields->m_host_arch_32, g_fields->m_host_arch_64); - is_initialized = true; - } + }); // If an explicit 32 or 64-bit architecture was requested, return that. if (arch_kind == eArchKind32) @@ -174,52 +154,123 @@ HostInfoBase::GetLLDBPath(lldb::PathType type, FileSpec &file_spec) return false; #endif - Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); FileSpec *result = nullptr; switch (type) { case lldb::ePathTypeLLDBShlibDir: - COMPUTE_LLDB_PATH(ComputeSharedLibraryDirectory, g_fields->m_lldb_so_dir) - if (log) - log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBShlibDir) => '%s'", g_fields->m_lldb_so_dir.GetPath().c_str()); + { + static std::once_flag g_once_flag; + static bool success = false; + std::call_once(g_once_flag, []() { + success = HostInfo::ComputeSharedLibraryDirectory (g_fields->m_lldb_so_dir); + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); + if (log) + log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBShlibDir) => '%s'", g_fields->m_lldb_so_dir.GetPath().c_str()); + }); + if (success) + result = &g_fields->m_lldb_so_dir; + } break; case lldb::ePathTypeSupportExecutableDir: - COMPUTE_LLDB_PATH(ComputeSupportExeDirectory, g_fields->m_lldb_support_exe_dir) - if (log) - log->Printf("HostInfoBase::GetLLDBPath(ePathTypeSupportExecutableDir) => '%s'", - g_fields->m_lldb_support_exe_dir.GetPath().c_str()); + { + static std::once_flag g_once_flag; + static bool success = false; + std::call_once(g_once_flag, []() { + success = HostInfo::ComputeSupportExeDirectory (g_fields->m_lldb_support_exe_dir); + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); + if (log) + log->Printf("HostInfoBase::GetLLDBPath(ePathTypeSupportExecutableDir) => '%s'", + g_fields->m_lldb_support_exe_dir.GetPath().c_str()); + }); + if (success) + result = &g_fields->m_lldb_support_exe_dir; + } break; case lldb::ePathTypeHeaderDir: - COMPUTE_LLDB_PATH(ComputeHeaderDirectory, g_fields->m_lldb_headers_dir) - if (log) - log->Printf("HostInfoBase::GetLLDBPath(ePathTypeHeaderDir) => '%s'", g_fields->m_lldb_headers_dir.GetPath().c_str()); + { + static std::once_flag g_once_flag; + static bool success = false; + std::call_once(g_once_flag, []() { + success = HostInfo::ComputeHeaderDirectory (g_fields->m_lldb_headers_dir); + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); + if (log) + log->Printf("HostInfoBase::GetLLDBPath(ePathTypeHeaderDir) => '%s'", g_fields->m_lldb_headers_dir.GetPath().c_str()); + }); + if (success) + result = &g_fields->m_lldb_headers_dir; + } break; case lldb::ePathTypePythonDir: - COMPUTE_LLDB_PATH(ComputePythonDirectory, g_fields->m_lldb_python_dir) - if (log) - log->Printf("HostInfoBase::GetLLDBPath(ePathTypePythonDir) => '%s'", g_fields->m_lldb_python_dir.GetPath().c_str()); + { + static std::once_flag g_once_flag; + static bool success = false; + std::call_once(g_once_flag, []() { + success = HostInfo::ComputePythonDirectory (g_fields->m_lldb_python_dir); + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); + if (log) + log->Printf("HostInfoBase::GetLLDBPath(ePathTypePythonDir) => '%s'", g_fields->m_lldb_python_dir.GetPath().c_str()); + }); + if (success) + result = &g_fields->m_lldb_python_dir; + } break; case lldb::ePathTypeClangDir: - COMPUTE_LLDB_PATH(ComputeClangDirectory, g_fields->m_lldb_clang_resource_dir) - if (log) - log->Printf("HostInfoBase::GetLLDBPath(ePathTypeClangResourceDir) => '%s'", g_fields->m_lldb_clang_resource_dir.GetPath().c_str()); + { + static std::once_flag g_once_flag; + static bool success = false; + std::call_once(g_once_flag, []() { + success = HostInfo::ComputeClangDirectory (g_fields->m_lldb_clang_resource_dir); + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); + if (log) + log->Printf("HostInfoBase::GetLLDBPath(ePathTypeClangResourceDir) => '%s'", g_fields->m_lldb_clang_resource_dir.GetPath().c_str()); + }); + if (success) + result = &g_fields->m_lldb_clang_resource_dir; + } break; case lldb::ePathTypeLLDBSystemPlugins: - COMPUTE_LLDB_PATH(ComputeSystemPluginsDirectory, g_fields->m_lldb_system_plugin_dir) - if (log) - log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBSystemPlugins) => '%s'", - g_fields->m_lldb_system_plugin_dir.GetPath().c_str()); + { + static std::once_flag g_once_flag; + static bool success = false; + std::call_once(g_once_flag, []() { + success = HostInfo::ComputeSystemPluginsDirectory (g_fields->m_lldb_system_plugin_dir); + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); + if (log) + log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBSystemPlugins) => '%s'", + g_fields->m_lldb_system_plugin_dir.GetPath().c_str()); + }); + if (success) + result = &g_fields->m_lldb_system_plugin_dir; + } break; case lldb::ePathTypeLLDBUserPlugins: - COMPUTE_LLDB_PATH(ComputeUserPluginsDirectory, g_fields->m_lldb_user_plugin_dir) - if (log) - log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBUserPlugins) => '%s'", - g_fields->m_lldb_user_plugin_dir.GetPath().c_str()); + { + static std::once_flag g_once_flag; + static bool success = false; + std::call_once(g_once_flag, []() { + success = HostInfo::ComputeUserPluginsDirectory (g_fields->m_lldb_user_plugin_dir); + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); + if (log) + log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBUserPlugins) => '%s'", + g_fields->m_lldb_user_plugin_dir.GetPath().c_str()); + }); + if (success) + result = &g_fields->m_lldb_user_plugin_dir; + } break; case lldb::ePathTypeLLDBTempSystemDir: - COMPUTE_LLDB_PATH(ComputeTempFileDirectory, g_fields->m_lldb_tmp_dir) - if (log) - log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBTempSystemDir) => '%s'", g_fields->m_lldb_tmp_dir.GetPath().c_str()); + { + static std::once_flag g_once_flag; + static bool success = false; + std::call_once(g_once_flag, []() { + success = HostInfo::ComputeTempFileDirectory (g_fields->m_lldb_tmp_dir); + Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST); + if (log) + log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBTempSystemDir) => '%s'", g_fields->m_lldb_tmp_dir.GetPath().c_str()); + }); + if (success) + result = &g_fields->m_lldb_tmp_dir; + } break; } @@ -327,6 +378,7 @@ HostInfoBase::ComputeHostArchitectureSupport(ArchSpec &arch_32, ArchSpec &arch_6 arch_32.SetTriple(triple); break; + case llvm::Triple::ppc64: case llvm::Triple::x86_64: arch_64.SetTriple(triple); arch_32.SetTriple(triple.get32BitArchVariant()); @@ -335,7 +387,6 @@ HostInfoBase::ComputeHostArchitectureSupport(ArchSpec &arch_32, ArchSpec &arch_6 case llvm::Triple::aarch64: case llvm::Triple::mips64: case llvm::Triple::sparcv9: - case llvm::Triple::ppc64: arch_64.SetTriple(triple); break; } |