diff options
Diffstat (limited to 'libbuild2/cc/guess.cxx')
| -rw-r--r-- | libbuild2/cc/guess.cxx | 141 |
1 files changed, 93 insertions, 48 deletions
diff --git a/libbuild2/cc/guess.cxx b/libbuild2/cc/guess.cxx index 80ee84e..1fe2421 100644 --- a/libbuild2/cc/guess.cxx +++ b/libbuild2/cc/guess.cxx @@ -470,8 +470,6 @@ namespace build2 // If cl is not empty, then find an installation that contains this cl.exe // path and also derive msvc_cpu from it. // - // @@ TODO: if (cl.sub (r.msvc_dir)), msvc_cpu derivation. - // static optional<msvc_info> find_msvc (const path& cl = path ()) { @@ -479,12 +477,7 @@ namespace build2 msvc_info r; - // @@ TMP - // - if (!cl.empty ()) - r.msvc_cpu = "x64"; - - // Try to obtain the latest MSVC directory and version. + // Try to obtain the MSVC directory. // { // Initialize the COM library for use by the current thread. @@ -522,9 +515,12 @@ namespace build2 ei.reset (p); } - // Obtain an interface that helps with the VS version parsing. + // If we search for the latest VS then obtain an interface that helps + // with the VS version parsing. // unique_ptr<ISetupHelper, com_deleter> sh; + + if (cl.empty ()) { ISetupHelper* p; if (sc->QueryInterface (msvc_setup_helper_iid, @@ -534,55 +530,26 @@ namespace build2 sh.reset (p); } - // Iterate over the VS instances and pick the latest one. Bail out - // if any COM interface function call fails. - // - unsigned long long vs_ver (0); // VS version numeric representation. - unique_ptr<ISetupInstance, com_deleter> vs; - HRESULT hr; + using vs_ptr = unique_ptr<ISetupInstance, com_deleter>; - for (ISetupInstance* p; - (hr = ei->Next (1, &p, nullptr /* pceltFetched */)) == S_OK; ) + // Return the Visual Studio instance VC directory path or the empty + // path on error. + // + auto vc_dir = [] (const vs_ptr& vs) { - unique_ptr<ISetupInstance, com_deleter> i (p); - // Note: we cannot use bstr_t due to the Clang 9.0 bug #42842. // - BSTR iv; // For example, 16.3.29324.140. - if (i->GetInstallationVersion (&iv) != S_OK) - return nullopt; - - unique_ptr<wchar_t, bstr_deleter> deleter (iv); - - unsigned long long v; - if (sh->ParseVersion (iv, &v) != S_OK) - return nullopt; - - if (vs == nullptr || v > vs_ver) - { - vs = move (i); - vs_ver = v; - } - } - - // Bail out if no VS instance is found or we didn't manage to iterate - // through all of them successfully. - // - if (vs == nullptr || hr != S_FALSE) - return nullopt; - - // Obtain the VC directory path. - // - { BSTR p; if (vs->ResolvePath (L"VC", &p) != S_OK) - return nullopt; + return dir_path (); unique_ptr<wchar_t, bstr_deleter> deleter (p); // Convert BSTR to the NULL-terminated character string and then to // a path. Bail out if anything goes wrong. // + dir_path r; + try { int n (WideCharToMultiByte (CP_ACP, @@ -602,12 +569,80 @@ namespace build2 p, -1, ps.data (), n, 0, 0) != 0) - r.msvc_dir = dir_path (ps.data ()); + r = dir_path (ps.data ()); } } catch (const invalid_path&) {} - if (r.msvc_dir.relative ()) // Also covers the empty directory case. + if (r.relative ()) // Also covers the empty directory case. + return dir_path (); + + return r; + }; + + // Iterate over the VS instances and pick the latest or containing + // cl.exe, if its path is specified. Bail out if any COM interface + // function call fails. + // + vs_ptr vs; + unsigned long long vs_ver (0); // VS version numeric representation. + + HRESULT hr; + for (ISetupInstance* p; + (hr = ei->Next (1, &p, nullptr /* pceltFetched */)) == S_OK; ) + { + vs_ptr i (p); + + if (!cl.empty ()) // Searching for VS containing cl.exe. + { + dir_path d (vc_dir (i)); + if (d.empty ()) + return nullopt; + + if (cl.sub (d)) + { + vs = move (i); + r.msvc_dir = move (d); // Save not to query repeatedly. + break; + } + } + else // Searching for the latest VS. + { + BSTR iv; // For example, 16.3.29324.140. + if (i->GetInstallationVersion (&iv) != S_OK) + return nullopt; + + unique_ptr<wchar_t, bstr_deleter> deleter (iv); + + assert (sh != nullptr); + + unsigned long long v; + if (sh->ParseVersion (iv, &v) != S_OK) + return nullopt; + + if (vs == nullptr || v > vs_ver) + { + vs = move (i); + vs_ver = v; + } + } + } + + // Bail out if no VS instance is found or we didn't manage to iterate + // through them successfully. + // + if (vs == nullptr || (hr != S_FALSE && hr != S_OK)) + return nullopt; + + // Note: we may already have the directory (search by cl.exe case). + // + if (r.msvc_dir.empty ()) + { + assert (cl.empty ()); + + r.msvc_dir = vc_dir (vs); + + if (r.msvc_dir.empty ()) return nullopt; } @@ -643,6 +678,16 @@ namespace build2 return nullopt; } + // If the cl.exe path is specified then derive msvc_cpu as its parent + // directory name. + // + if (!cl.empty ()) + { + assert (cl.absolute ()); + + r.msvc_cpu = cl.directory ().leaf ().string (); + } + // Try to obtain the latest Platform SDK directory and version. // { |