Commit ab63b3ed authored by Doug Thayer's avatar Doug Thayer
Browse files

Bug 1635569 - Set execute flags when prefetching images r=aklotz 

Differential Revision: https://phabricator.services.mozilla.com/D73941
parent f0c67b2c

xpcom/glue/FileUtils.cpp

+7 −6
Original line number Diff line number Diff line
@@ -363,20 +363,21 @@ void mozilla::ReadAheadLib(mozilla::pathstr_t aFilePath) { 
    ReadAheadFile(aFilePath);

    return;

  }

  nsAutoHandle fd(CreateFileW(aFilePath, GENERIC_READ, FILE_SHARE_READ, nullptr,

                              OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN,

                              nullptr));

  nsAutoHandle fd(CreateFileW(aFilePath, GENERIC_READ | GENERIC_EXECUTE,

                              FILE_SHARE_READ, nullptr, OPEN_EXISTING,

                              FILE_FLAG_SEQUENTIAL_SCAN, nullptr));

  if (!fd) {

    return;

  }



  nsAutoHandle mapping(

      CreateFileMapping(fd, nullptr, SEC_IMAGE | PAGE_READONLY, 0, 0, nullptr));

  nsAutoHandle mapping(CreateFileMapping(

      fd, nullptr, SEC_IMAGE | PAGE_EXECUTE_READ, 0, 0, nullptr));

  if (!mapping) {

    return;

  }



  PVOID data = MapViewOfFile(mapping, FILE_MAP_READ, 0, 0, 0);

  PVOID data = MapViewOfFile(

      mapping, FILE_MAP_READ | FILE_MAP_EXECUTE | SEC_IMAGE, 0, 0, 0);

  if (!data) {

    return;

  }