WebCore on Windows links as a static library. Later in the build process, this static library is linked into WebKit.dll. The WebCore build generates its symbolic information into a vc80.pdb file sitting in the WebCore obj directory. Depending on how to components are built, this pdb can be lost. This can result in an inability to source level debug the WebCore code. A similar issue is discussed here: http://stackoverflow.com/questions/253727/vc80-pdb-how-do-i-make-it-go-away-and-never-bother-me-again The fix is to use a more applicable name for vc80.pdb, and to generate it into a folder alongside WebKit.lib. As long as the pdb is carried along the build process with WebKit.lib, symbols will be available for debugging.
Created attachment 44498 [details] Add ProgramDataBaseFileName to vsprops
style-queue ran check-webkit-style on attachment 44498 [details] without any errors.
Comment on attachment 44498 [details] Add ProgramDataBaseFileName to vsprops r=me
Fixed in http://trac.webkit.org/changeset/51881