Rework the way SCons recurses into subdirectories, making it

automatic.  The point is that now a subdirectory can be added
to the build process just by creating a SConscript file in it.
The process has two passes.  On the first pass, all subdirs
of the root of the tree are searched for SConsopts files.
These files contain any command line options that ought to be
added for a particular subdirectory.  On the second pass,
all subdirs of the src directory are searched for SConscript
files.  These files describe how to build any given subdirectory.
I have added a Source() function.  Any file (relative to the
directory in which the SConscript resides) passed to that
function is added to the build.  Clean up everything to take
advantage of Source().
function is added to the list of files to be built.

--HG--
extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30

2 files changed, 55 insertions, 51 deletions

diff --git a/src/arch/mips/SConscript b/src/arch/mips/SConscript
index 8353bcde7..f959951b3 100644
--- a/src/arch/mips/SConscript
+++ b/src/arch/mips/SConscript
@@ -30,54 +30,25 @@
 #          Steve Reinhardt
 #          Korey Sewell
 
-import os
-import sys
-from os.path import isdir
-
-# Import build environment variable from SConstruct.
-Import('env')
-
-###################################################
-#
-# Define needed sources.
-#
-###################################################
-
-# Base sources used by all configurations.
-base_sources = Split('''
-	faults.cc
-	isa_traits.cc
-        utility.cc
-	''')
-
-# Full-system sources
-full_system_sources = Split('''
-	#Insert Full-System Files Here
-	''')
-
-# Syscall emulation (non-full-system) sources
-syscall_emulation_sources = Split('''
-        linux/linux.cc
-	linux/process.cc
-        process.cc
-	''')
-
-# Set up complete list of sources based on configuration.
-sources = base_sources
-
-if env['FULL_SYSTEM']:
-    sources += full_system_sources
-else:
-    sources += syscall_emulation_sources
-
-# Convert file names to SCons File objects.  This takes care of the
-# path relative to the top of the directory tree.
-sources = [File(s) for s in sources]
-
-# Add in files generated by the ISA description.
-isa_desc_files = env.ISADesc('isa/main.isa')
-# Only non-header files need to be compiled.
-isa_desc_sources = [f for f in isa_desc_files if not f.path.endswith('.hh')]
-sources += isa_desc_sources
-
-Return('sources')
+Import('*')
+
+if env['TARGET_ISA'] == 'mips':
+    Source('faults.cc')
+    Source('isa_traits.cc')
+    Source('utility.cc')
+
+    if env['FULL_SYSTEM']:
+        #Insert Full-System Files Here
+        pass
+    else:
+        Source('process.cc')
+
+        Source('linux/linux.cc')
+        Source('linux/process.cc')
+
+    # Add in files generated by the ISA description.
+    isa_desc_files = env.ISADesc('isa/main.isa')
+    # Only non-header files need to be compiled.
+    for f in isa_desc_files:
+        if not f.path.endswith('.hh'):
+            Source(f)
diff --git a/src/arch/mips/SConsopts b/src/arch/mips/SConsopts
new file mode 100644
index 000000000..744fc9cca
--- /dev/null
+++ b/src/arch/mips/SConsopts
@@ -0,0 +1,33 @@
+# -*- mode:python -*-
+
+# Copyright (c) 2006 The Regents of The University of Michigan
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: Nathan Binkert
+
+Import('*')
+
+all_isa_list.append('mips')