[NaCl SDK] Add arm gcc toolchain support to the SDK

native_client_sdk/src/build_tools/generate_make.py

Index: native_client_sdk/src/build_tools/generate_make.py
diff --git a/native_client_sdk/src/build_tools/generate_make.py b/native_client_sdk/src/build_tools/generate_make.py
index 9be8e0275d73424eb7115c402658df9328f6d28b..941de65bf15467ea30c33de158d460c3848964d5 100755
--- a/native_client_sdk/src/build_tools/generate_make.py
+++ b/native_client_sdk/src/build_tools/generate_make.py
@@ -276,7 +276,7 @@ def ValidateFormat(src, dsc_format, ErrorMsg=ErrorMsgFunc):
     if exp_type is str:
       if type(exp_value) is list and exp_value:
         if value not in exp_value:
-          ErrorMsg('Value %s not expected for %s.' % (value, key))
+          ErrorMsg("Value '%s' not expected for %s." % (value, key))
           failed = True
       continue
 
@@ -394,7 +394,7 @@ def LoadProject(filename, toolchains):
   if it matches the set of requested toolchains.  Return None if the
   project is filtered out."""
 
-  print '\n\nProcessing %s...' % filename
+  print 'Processing %s...' % filename
   # Default src directory is the directory the description was found in
   desc = open(filename, 'r').read()
   desc = eval(desc, {}, {})
@@ -527,21 +527,22 @@ def GenerateMasterMakefile(in_path, out_path, projects):
 
 
 def main(argv):
-  parser = optparse.OptionParser()
+  usage = "usage: generate_make [options] <dsc_file ..>"
+  parser = optparse.OptionParser(usage=usage)
   parser.add_option('--dstroot', help='Set root for destination.',
-      dest='dstroot', default=os.path.join(OUT_DIR, 'pepper_canary'))
+      default=os.path.join(OUT_DIR, 'pepper_canary'))
   parser.add_option('--master', help='Create master Makefile.',
-      action='store_true', dest='master', default=False)
+      action='store_true', default=False)
   parser.add_option('--newlib', help='Create newlib examples.',
-      action='store_true', dest='newlib', default=False)
+      action='store_true', default=False)
   parser.add_option('--glibc', help='Create glibc examples.',
-      action='store_true', dest='glibc', default=False)
+      action='store_true', default=False)
   parser.add_option('--pnacl', help='Create pnacl examples.',
-      action='store_true', dest='pnacl', default=False)
+      action='store_true', default=False)
   parser.add_option('--host', help='Create host examples.',
-      action='store_true', dest='host', default=False)
+      action='store_true', default=False)
   parser.add_option('--experimental', help='Create experimental examples.',
-      action='store_true', dest='experimental', default=False)
+      action='store_true', default=False)
 
   toolchains = []
   platform = getos.GetPlatform()
@@ -561,13 +562,15 @@ def main(argv):
 
   # By default support newlib and glibc
   if not toolchains:
-    toolchains = ['newlib', 'glibc']
-    print 'Using default toolchains: ' + ' '.join(toolchains)
+    toolchains = ['newlib', 'glibc', 'pnacl']
 
   master_projects = {}
 
   landing_page = LandingPage()
-  for filename in args:
+  for i, filename in enumerate(args):
+    if i:
+      # Print two newlines between each dsc file we process
+      print '\n'
     desc = LoadProject(filename, toolchains)
     if not desc:
       print 'Skipping %s, not in [%s].' % (filename, ', '.join(toolchains))