scons: Track and reuse object nodes for a given source file.
scons gets upset if two different environments are used to set up a
particular object file. This change adds two dicts to the SourceFile
class, one for static and one for shared object files, which are keyed
off of the appropriate suffix. If a suffix hasn't been set up yet,
a new node of the appropriate type is set up and stored in the cache,
and then whatever is in the cache (new or old) is returned.
Change-Id: Ice4b4fc728b438a4d3316c3ff6667c0480d2a6d7
Reviewed-on: https://gem5-review.googlesource.com/6224
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
diff --git a/src/SConscript b/src/SConscript
index 73e9f82..8890308 100755
--- a/src/SConscript
+++ b/src/SConscript
@@ -102,6 +102,10 @@
of those. A source file also specifies a set of tags which
describing arbitrary properties of the source file.'''
__metaclass__ = SourceMeta
+
+ static_objs = {}
+ shared_objs = {}
+
def __init__(self, source, tags=None, add_tags=None):
if tags is None:
tags='gem5 lib'
@@ -124,6 +128,18 @@
if issubclass(base, SourceFile):
base.all.append(self)
+ def static(self, env):
+ key = (self.tnode, env['OBJSUFFIX'])
+ if not key in self.static_objs:
+ self.static_objs[key] = env.StaticObject(self.tnode)
+ return self.static_objs[key]
+
+ def shared(self, env):
+ key = (self.tnode, env['OBJSUFFIX'])
+ if not key in self.shared_objs:
+ self.shared_objs[key] = env.SharedObject(self.tnode)
+ return self.shared_objs[key]
+
@property
def filename(self):
return str(self.tnode)
@@ -960,9 +976,6 @@
new_env.Label = label
new_env.Append(**kwargs)
- make_static = lambda source: new_env.StaticObject(source.tnode)
- make_shared = lambda source: new_env.SharedObject(source.tnode)
-
lib_sources = Source.all.with_tag('gem5 lib')
# Without Python, leave out all Python content from the library
@@ -974,16 +987,16 @@
shared_objs = []
for s in lib_sources.with_tag(Source.ungrouped_tag):
- static_objs.append(make_static(s))
- shared_objs.append(make_shared(s))
+ static_objs.append(s.static(new_env))
+ shared_objs.append(s.shared(new_env))
for group in Source.source_groups:
srcs = lib_sources.with_tag(Source.link_group_tag(group))
if not srcs:
continue
- group_static = [ make_static(s) for s in srcs ]
- group_shared = [ make_shared(s) for s in srcs ]
+ group_static = [ s.static(new_env) for s in srcs ]
+ group_shared = [ s.shared(new_env) for s in srcs ]
# If partial linking is disabled, add these sources to the build
# directly, and short circuit this loop.
@@ -1004,11 +1017,11 @@
partial = env.PartialShared(target=target, source=group_shared)
shared_objs.extend(partial)
- static_date = make_static(date_source)
+ static_date = date_source.static(new_env)
new_env.Depends(static_date, static_objs)
static_objs.extend(static_date)
- shared_date = make_shared(date_source)
+ shared_date = date_source.shared(new_env)
new_env.Depends(shared_date, shared_objs)
shared_objs.extend(shared_date)
@@ -1018,11 +1031,11 @@
shared_lib = new_env.SharedLibrary(libname, shared_objs)
# Now link a stub with main() and the static library.
- main_objs = [ make_static(s) for s in Source.all.with_tag('main') ]
+ main_objs = [ s.static(new_env) for s in Source.all.with_tag('main') ]
for test in UnitTest.all:
test_sources = Source.all.with_tag(str(test.target))
- test_objs = [ make_static(s) for s in test_sources ]
+ test_objs = [ s.static(new_env) for s in test_sources ]
if test.main:
test_objs += main_objs
path = 'unittest/%s.%s' % (test.target, label)
@@ -1033,7 +1046,7 @@
gtest_env.Append(CPPFLAGS=gtest_env['GTEST_CPPFLAGS'])
for test in GTest.all:
test_sources = Source.all.with_tag(str(test.target))
- test_objs = [ gtest_env.StaticObject(s.tnode) for s in test_sources ]
+ test_objs = [ s.static(gtest_env) for s in test_sources ]
gtest_env.Program(test.dir.File('%s.%s' % (test.target, label)),
test_objs)
