[lld] r298322 - Add a function to MD5 a file's contents.

[Zachary Turner via llvm-commits]

Author: zturner
Date: Mon Mar 20 18:33:18 2017
New Revision: 298322

URL: http://llvm.org/viewvc/llvm-project?rev=298322&view=rev
Log:
Add a function to MD5 a file's contents.

In doing so, clean up the MD5 interface a little.  Most
existing users only care about the lower 8 bytes of an MD5,
but for some users that care about the upper and lower,
there wasn't a good interface.  Furthermore, consumers
of the MD5 checksum were required to handle endianness
details on their own, so it seems reasonable to abstract
this into a nicer interface that just gives you the right
value.

Differential Revision: https://reviews.llvm.org/D31105

Modified:
    lld/trunk/COFF/Writer.cpp

Modified: lld/trunk/COFF/Writer.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/Writer.cpp?rev=298322&r1=298321&r2=298322&view=diff
==============================================================================
--- lld/trunk/COFF/Writer.cpp (original)
+++ lld/trunk/COFF/Writer.cpp Mon Mar 20 18:33:18 2017
@@ -791,7 +791,7 @@ void Writer::writeBuildId() {
          "only PDB 7.0 is supported");
   assert(sizeof(Res) == sizeof(BuildId->DI->PDB70.Signature) &&
          "signature size mismatch");
-  memcpy(BuildId->DI->PDB70.Signature, Res,
+  memcpy(BuildId->DI->PDB70.Signature, Res.Bytes.data(),
          sizeof(codeview::PDB70DebugInfo::Signature));
   // TODO(compnerd) track the Age
   BuildId->DI->PDB70.Age = 1;