diff options
Diffstat (limited to 'llvm/lib/Support/Path.cpp')
| -rw-r--r-- | llvm/lib/Support/Path.cpp | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/llvm/lib/Support/Path.cpp b/llvm/lib/Support/Path.cpp index b2d645779b0..49279d03b76 100644 --- a/llvm/lib/Support/Path.cpp +++ b/llvm/lib/Support/Path.cpp @@ -986,22 +986,18 @@ file_magic identify_magic(StringRef Magic) { return file_magic::unknown; switch ((unsigned char)Magic[0]) { case 0x00: { - // COFF bigobj or short import library file - if (Magic[1] == (char)0x00 && Magic[2] == (char)0xff && - Magic[3] == (char)0xff) { + // COFF bigobj, CL.exe's LTO object file, or short import library file + if (memcmp(Magic.data() + 1, "\0\xFF\xFF", 3) == 0) { size_t MinSize = offsetof(COFF::BigObjHeader, UUID) + sizeof(COFF::BigObjMagic); if (Magic.size() < MinSize) return file_magic::coff_import_library; - int BigObjVersion = read16le( - Magic.data() + offsetof(COFF::BigObjHeader, Version)); - if (BigObjVersion < COFF::BigObjHeader::MinBigObjectVersion) - return file_magic::coff_import_library; - const char *Start = Magic.data() + offsetof(COFF::BigObjHeader, UUID); - if (memcmp(Start, COFF::BigObjMagic, sizeof(COFF::BigObjMagic)) != 0) - return file_magic::coff_import_library; - return file_magic::coff_object; + if (memcmp(Start, COFF::BigObjMagic, sizeof(COFF::BigObjMagic)) == 0) + return file_magic::coff_object; + if (memcmp(Start, COFF::ClGlObjMagic, sizeof(COFF::BigObjMagic)) == 0) + return file_magic::coff_cl_gl_object; + return file_magic::coff_import_library; } // Windows resource file const char Expected[] = { 0, 0, 0, 0, '\x20', 0, 0, 0, '\xff' }; |
