[PATCH] BaseTools: Cannot store library cache of different arch together

["Steven Shi" <steven.shi@intel.com>]

https://bugzilla.tianocore.org/show_bug.cgi?id=1895

Build cache cannot store cache for the same library modules
in different arch together. E.g. Both the below IA32 and X64
arch BaseLib caches should exist after build Ovmf3264, but now
only the one in X64 arch exist.
The reason is the current Basetool use a set() to same all
library AutoGen objects, but the different arch lib AutoGen
objects have same __hash_ value which comes from the lib
MetaFile(The path of module file):
    def __hash__(self):
        return hash(self.MetaFile)

So the different arch lib AutoGen objects are duplicated one
to the set() and only one can exist. This is why the Basetool
can only store one arch cache for library.
This patch avoid to use the set() as the container to save the
library and module objects because the objects might have same
__hash__ value.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Christian Rodriguez <christian.rodriguez@intel.com>
Signed-off-by: Steven Shi <steven.shi@intel.com>
---
 BaseTools/Source/Python/build/build.py | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/BaseTools/Source/Python/build/build.py b/BaseTools/Source/Python/build/build.py
index 0855d4561c..f7a79cbbab 100644
--- a/BaseTools/Source/Python/build/build.py
+++ b/BaseTools/Source/Python/build/build.py
@@ -2203,21 +2203,14 @@ class Build():
             RemoveDirectory(os.path.dirname(GlobalData.gDatabasePath), True)
 
     def CreateAsBuiltInf(self):
-        all_lib_set = set()
-        all_mod_set = set()
         for Module in self.BuildModules:
             Module.CreateAsBuiltInf()
-            all_mod_set.add(Module)
+            for lib in Module.LibraryAutoGenList:
+                lib.CreateAsBuiltInf(True)
         for Module in self.HashSkipModules:
             Module.CreateAsBuiltInf(True)
-            all_mod_set.add(Module)
-        for Module in all_mod_set:
             for lib in Module.LibraryAutoGenList:
-                all_lib_set.add(lib)
-        for lib in all_lib_set:
-            lib.CreateAsBuiltInf(True)
-        all_lib_set.clear()
-        all_mod_set.clear()
+                lib.CreateAsBuiltInf(True)
         self.BuildModules = []
         self.HashSkipModules = []
     ## Do some clean-up works when error occurred
-- 
2.17.1.windows.2