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-rwxr-xr-xsrc/SConscript142
1 files changed, 97 insertions, 45 deletions
diff --git a/src/SConscript b/src/SConscript
index 398c342ec..287c388ba 100755
--- a/src/SConscript
+++ b/src/SConscript
@@ -149,6 +149,14 @@ class SourceFile(object):
def __eq__(self, other): return self.filename == other.filename
def __ne__(self, other): return self.filename != other.filename
+ @staticmethod
+ def done():
+ def disabled(cls, name, *ignored):
+ raise RuntimeError("Additional SourceFile '%s'" % name,\
+ "declared, but targets deps are already fixed.")
+ SourceFile.__init__ = disabled
+
+
class Source(SourceFile):
'''Add a c/c++ source file to the build'''
def __init__(self, source, Werror=True, swig=False, **guards):
@@ -877,20 +885,26 @@ for source in PySource.all:
#
# List of constructed environments to pass back to SConstruct
-envList = []
-
date_source = Source('base/date.cc', skip_lib=True)
+# Capture this directory for the closure makeEnv, otherwise when it is
+# called, it won't know what directory it should use.
+variant_dir = Dir('.').path
+def variant(*path):
+ return os.path.join(variant_dir, *path)
+def variantd(*path):
+ return variant(*path)+'/'
+
# Function to create a new build environment as clone of current
# environment 'env' with modified object suffix and optional stripped
# binary. Additional keyword arguments are appended to corresponding
# build environment vars.
-def makeEnv(label, objsfx, strip = False, **kwargs):
+def makeEnv(env, label, objsfx, strip = False, **kwargs):
# SCons doesn't know to append a library suffix when there is a '.' in the
# name. Use '_' instead.
- libname = 'gem5_' + label
- exename = 'gem5.' + label
- secondary_exename = 'm5.' + label
+ libname = variant('gem5_' + label)
+ exename = variant('gem5.' + label)
+ secondary_exename = variant('m5.' + label)
new_env = env.Clone(OBJSUFFIX=objsfx, SHOBJSUFFIX=objsfx + 's')
new_env.Label = label
@@ -978,8 +992,8 @@ def makeEnv(label, objsfx, strip = False, **kwargs):
test_objs = [ make_obj(s, static=True) for s in test_sources ]
if test.main:
test_objs += main_objs
- testname = "unittest/%s.%s" % (test.target, label)
- new_env.Program(testname, test_objs + static_objs)
+ path = variant('unittest/%s.%s' % (test.target, label))
+ new_env.Program(path, test_objs + static_objs)
progname = exename
if strip:
@@ -999,7 +1013,7 @@ def makeEnv(label, objsfx, strip = False, **kwargs):
MakeAction('ln $SOURCE $TARGET', Transform("HARDLINK")))
new_env.M5Binary = targets[0]
- envList.append(new_env)
+ return new_env
# Start out with the compiler flags common to all compilers,
# i.e. they all use -g for opt and -g -pg for prof
@@ -1065,39 +1079,77 @@ needed_envs = [identifyTarget(target) for target in BUILD_TARGETS]
if 'all' in needed_envs:
needed_envs += target_types
-# Debug binary
-if 'debug' in needed_envs:
- makeEnv('debug', '.do',
- CCFLAGS = Split(ccflags['debug']),
- CPPDEFINES = ['DEBUG', 'TRACING_ON=1'],
- LINKFLAGS = Split(ldflags['debug']))
-
-# Optimized binary
-if 'opt' in needed_envs:
- makeEnv('opt', '.o',
- CCFLAGS = Split(ccflags['opt']),
- CPPDEFINES = ['TRACING_ON=1'],
- LINKFLAGS = Split(ldflags['opt']))
-
-# "Fast" binary
-if 'fast' in needed_envs:
- makeEnv('fast', '.fo', strip = True,
- CCFLAGS = Split(ccflags['fast']),
- CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
- LINKFLAGS = Split(ldflags['fast']))
-
-# Profiled binary using gprof
-if 'prof' in needed_envs:
- makeEnv('prof', '.po',
- CCFLAGS = Split(ccflags['prof']),
- CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
- LINKFLAGS = Split(ldflags['prof']))
-
-# Profiled binary using google-pprof
-if 'perf' in needed_envs:
- makeEnv('perf', '.gpo',
- CCFLAGS = Split(ccflags['perf']),
- CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
- LINKFLAGS = Split(ldflags['perf']))
-
-Return('envList')
+gem5_root = Dir('.').up().up().abspath
+def makeEnvirons(target, source, env):
+ # cause any later Source() calls to be fatal, as a diagnostic.
+ Source.done()
+
+ envList = []
+
+ # Debug binary
+ if 'debug' in needed_envs:
+ envList.append(
+ makeEnv(env, 'debug', '.do',
+ CCFLAGS = Split(ccflags['debug']),
+ CPPDEFINES = ['DEBUG', 'TRACING_ON=1'],
+ LINKFLAGS = Split(ldflags['debug'])))
+
+ # Optimized binary
+ if 'opt' in needed_envs:
+ envList.append(
+ makeEnv(env, 'opt', '.o',
+ CCFLAGS = Split(ccflags['opt']),
+ CPPDEFINES = ['TRACING_ON=1'],
+ LINKFLAGS = Split(ldflags['opt'])))
+
+ # "Fast" binary
+ if 'fast' in needed_envs:
+ envList.append(
+ makeEnv(env, 'fast', '.fo', strip = True,
+ CCFLAGS = Split(ccflags['fast']),
+ CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
+ LINKFLAGS = Split(ldflags['fast'])))
+
+ # Profiled binary using gprof
+ if 'prof' in needed_envs:
+ envList.append(
+ makeEnv(env, 'prof', '.po',
+ CCFLAGS = Split(ccflags['prof']),
+ CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
+ LINKFLAGS = Split(ldflags['prof'])))
+
+ # Profiled binary using google-pprof
+ if 'perf' in needed_envs:
+ envList.append(
+ makeEnv(env, 'perf', '.gpo',
+ CCFLAGS = Split(ccflags['perf']),
+ CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
+ LINKFLAGS = Split(ldflags['perf'])))
+
+ # Set up the regression tests for each build.
+ for e in envList:
+ SConscript(os.path.join(gem5_root, 'tests', 'SConscript'),
+ variant_dir = variantd('tests', e.Label),
+ exports = { 'env' : e }, duplicate = False)
+
+# The MakeEnvirons Builder defers the full dependency collection until
+# after processing the ISA definition (due to dynamically generated
+# source files). Add this dependency to all targets so they will wait
+# until the environments are completely set up. Otherwise, a second
+# process (e.g. -j2 or higher) will try to compile the requested target,
+# not know how, and fail.
+env.Append(BUILDERS = {'MakeEnvirons' :
+ Builder(action=MakeAction(makeEnvirons,
+ Transform("ENVIRONS", 1)))})
+
+isa_target = env['PHONY_BASE'] + '-deps'
+environs = env['PHONY_BASE'] + '-environs'
+env.Depends('#all-deps', isa_target)
+env.Depends('#all-environs', environs)
+env.ScanISA(isa_target, File('arch/%s/generated/inc.d' % env['TARGET_ISA']))
+envSetup = env.MakeEnvirons(environs, isa_target)
+
+# make sure no -deps targets occur before all ISAs are complete
+env.Depends(isa_target, '#all-isas')
+# likewise for -environs targets and all the -deps targets
+env.Depends(environs, '#all-deps')
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 08:30:57 +0000