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Diffstat (limited to 'build2/cxx/msvc.cxx')
| -rw-r--r-- | build2/cxx/msvc.cxx | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/build2/cxx/msvc.cxx b/build2/cxx/msvc.cxx deleted file mode 100644 index 9798046..0000000 --- a/build2/cxx/msvc.cxx +++ /dev/null @@ -1,331 +0,0 @@ -// file : build2/cxx/msvc.cxx -*- C++ -*- -// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd -// license : MIT; see accompanying LICENSE file - -#include <iostream> // cerr - -#include <build2/scope> -#include <build2/target> -#include <build2/context> -#include <build2/variable> -#include <build2/filesystem> -#include <build2/diagnostics> - -#include <build2/cxx/common> - -using namespace std; -using namespace butl; - -namespace build2 -{ - namespace cxx - { - using namespace bin; - - // Translate the target triplet CPU to lib.exe/link.exe /MACHINE option. - // - const char* - msvc_machine (const string& cpu) - { - const char* m (cpu == "i386" || cpu == "i686" ? "/MACHINE:x86" : - cpu == "x86_64" ? "/MACHINE:x64" : - cpu == "arm" ? "/MACHINE:ARM" : - cpu == "arm64" ? "/MACHINE:ARM64" : - nullptr); - - if (m == nullptr) - fail << "unable to translate CPU " << cpu << " to /MACHINE"; - - return m; - } - - // Filter cl.exe and link.exe noise. - // - void - msvc_filter_cl (ifdstream& is, const path& src) - { - // While it appears VC always prints the source name (event if the - // file does not exist), let's do a sanity check. - // - string l; - if (getline (is, l) && l != src.leaf ().string ()) - cerr << l << endl; - } - - void - msvc_filter_link (ifdstream& is, const file& t, otype lt) - { - // Filter lines until we encounter something we don't recognize. We also - // have to assume the messages can be translated. - // - for (string l; getline (is, l); ) - { - // " Creating library foo\foo.dll.lib and object foo\foo.dll.exp" - // - if (lt == otype::s && l.compare (0, 3, " ") == 0) - { - path imp (static_cast<file*> (t.member)->path ().leaf ()); - - if (l.find (imp.string ()) != string::npos && - l.find (imp.base ().string () + ".exp") != string::npos) - continue; - } - - // /INCREMENTAL causes linker to sometimes issue messages but now I - // can't quite reproduce it. - // - - cerr << l << endl; - break; - } - } - - // Extract system library search paths from MSVC. - // - void - msvc_library_search_paths (scope&, const string&, dir_paths&) - { - // The linker doesn't seem to have any built-in paths and all of them - // come from the LIB environment variable. - - // @@ VC: how are we going to do this? E.g., cl-14 does this internally. - // cl.exe /Be prints LIB. - // - // Should we actually bother? LIB is normally used for system - // libraries and its highly unlikely we will see an explicit import - // for a library from one of those directories. - // - } - - // Inspect the file and determine if it is static or import library. - // Return otype::e if it is neither (which we quietly ignore). - // - static otype - library_type (const path& ld, const path& l) - { - // The are several reasonably reliable methods to tell whether it is a - // static or import library. One is lib.exe /LIST -- if there aren't any - // .obj members, then it is most likely an import library (it can also - // be an empty static library in which case there won't be any members). - // For an import library /LIST will print a bunch of .dll members. - // - // Another approach is dumpbin.exe (link.exe /DUMP) with /ARCHIVEMEMBERS - // (similar to /LIST) and /LINKERMEMBER (looking for __impl__ symbols or - // _IMPORT_DESCRIPTOR_). - // - // Note also, that apparently it is possible to have a hybrid library. - // - // While the lib.exe approach is probably the simplest, the problem is - // it will require us loading the bin.ar module even if we are not - // building any static libraries. On the other hand, if we are searching - // for libraries then we have bin.ld. So we will use the link.exe /DUMP - // /ARCHIVEMEMBERS. - // - const char* args[] = {ld.string ().c_str (), - "/DUMP", // Must come first. - "/NOLOGO", - "/ARCHIVEMEMBERS", - l.string ().c_str (), - nullptr}; - - // Link.exe seem to always dump everything to stdout but just in case - // redirect stderr to stdout. - // - process pr (start_run (args, false)); - - bool obj (false), dll (false); - string s; - - try - { - ifdstream is (pr.in_ofd, fdstream_mode::skip, ifdstream::badbit); - - while (getline (is, s)) - { - // Detect the one error we should let through. - // - if (s.compare (0, 18, "unable to execute ") == 0) - break; - - // The lines we are interested in seem to have this form (though - // presumably the "Archive member name at" part can be translated): - // - // Archive member name at 746: [...]hello.dll[/][ ]* - // Archive member name at 8C70: [...]hello.lib.obj[/][ ]* - // - size_t n (s.size ()); - - for (; n != 0 && s[n - 1] == ' '; --n) ; // Skip trailing spaces. - - if (n >= 7) // At least ": X.obj" or ": X.dll". - { - --n; - - if (s[n] == '/') // Skip trailing slash if one is there. - --n; - - n -= 3; // Beginning of extension. - - if (s[n] == '.') - { - // Make sure there is ": ". - // - size_t p (s.rfind (':', n - 1)); - - if (p != string::npos && s[p + 1] == ' ') - { - const char* e (s.c_str () + n + 1); - - if (casecmp (e, "obj", 3) == 0) - obj = true; - - if (casecmp (e, "dll", 3) == 0) - dll = true; - } - } - } - } - } - catch (const ifdstream::failure&) - { - // Presumably the child process failed. Let finish_run() deal with - // that. - } - - if (!finish_run (args, false, pr, s)) - return otype::e; - - if (obj && dll) - { - warn << l << " looks like hybrid static/import library, ignoring"; - return otype::e; - } - - if (!obj && !dll) - { - warn << l << " looks like empty static or import library, ignoring"; - return otype::e; - } - - return obj ? otype::a : otype::s; - } - - template <typename T> - static T* - search_library (const path& ld, - const dir_path& d, - prerequisite& p, - otype lt, - const char* pfx, - const char* sfx) - { - // Pretty similar logic to link::search_library(). - // - tracer trace ("cxx::msvc_search_library"); - - // Assemble the file path. - // - path f (d); - - if (*pfx != '\0') - { - f /= pfx; - f += p.name; - } - else - f /= p.name; - - if (*sfx != '\0') - f += sfx; - - const string& e ( - p.ext == nullptr || p.is_a<lib> () // Only for liba/libs. - ? extension_pool.find ("lib") - : *p.ext); - - if (!e.empty ()) - { - f += '.'; - f += e; - } - - // Check if the file exists and is of the expected type. - // - timestamp mt (file_mtime (f)); - - if (mt != timestamp_nonexistent && library_type (ld, f) == lt) - { - // Enter the target. - // - T& t (targets.insert<T> (d, dir_path (), p.name, &e, trace)); - - if (t.path ().empty ()) - t.path (move (f)); - - t.mtime (mt); - return &t; - } - - return nullptr; - } - - liba* - msvc_search_static (const path& ld, const dir_path& d, prerequisite& p) - { - liba* r (nullptr); - - auto search = [&r, &ld, &d, &p] (const char* pf, const char* sf) -> bool - { - r = search_library<liba> (ld, d, p, otype::a, pf, sf); - return r != nullptr; - }; - - // Try: - // foo.lib - // libfoo.lib - // foolib.lib - // foo_static.lib - // - return - search ("", "") || - search ("lib", "") || - search ("", "lib") || - search ("", "_static") ? r : nullptr; - } - - libs* - msvc_search_shared (const path& ld, const dir_path& d, prerequisite& p) - { - tracer trace ("cxx::msvc_search_shared"); - - libs* r (nullptr); - - auto search = [&r, &ld, &d, &p, &trace] ( - const char* pf, const char* sf) -> bool - { - if (libi* i = search_library<libi> (ld, d, p, otype::s, pf, sf)) - { - r = &targets.insert<libs> (d, dir_path (), p.name, nullptr, trace); - - if (r->member == nullptr) - { - r->mtime (i->mtime ()); - r->member = i; - } - } - - return r != nullptr; - }; - - // Try: - // foo.lib - // libfoo.lib - // foodll.lib - // - return - search ("", "") || - search ("lib", "") || - search ("", "dll") ? r : nullptr; - } - } -} |