CVS: python msp430-ram-usage.py,1.5,1.6

Update of /cvsroot/mspgcc/python
In directory 23jxhf1.ch3.sourceforge.com:/tmp/cvs-serv25008/python

Modified Files:
	msp430-ram-usage.py 
Log Message:
add stack size check option, which will exit the tool with exit code set != 0 if its not within range

Index: msp430-ram-usage.py
===================================================================
RCS file: /cvsroot/mspgcc/python/msp430-ram-usage.py,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -w -d -r1.5 -r1.6
--- msp430-ram-usage.py	3 Jun 2008 10:21:37 -0000	1.5
+++ msp430-ram-usage.py	10 Feb 2009 16:29:23 -0000	1.6
@@ -15,13 +15,31 @@
 from optparse import OptionParser
 
 parser = OptionParser()
-parser.add_option("-d", "--detailed", dest="detailed", default=False,
-    help="print a detailed list of labels", action="store_true")
-parser.add_option("-c", "--compact", dest="compact", default=False,
-    help="print a compact list of used bytes", action="store_true")
+
+parser.add_option("-d", "--detailed",
+    dest = "detailed", default=False,
+    help = "print a detailed list of labels",
+    action = "store_true"
+)
+parser.add_option("-c", "--compact",
+    dest = "compact",
+    default = False,
+    help = "print a compact list of used bytes",
+    action = "store_true"
+)
 parser.add_option("-q", "--quiet",
-    action="store_false", dest="verbose", default=True,
-    help="don't print status messages to stdout")
+    action = "store_false",
+    dest = "verbose",
+    default = True,
+    help = "don't print status messages to stdout"
+)
+parser.add_option("--min-stack",
+    action = "store",
+    dest = "min_stack",
+    type = "int",
+    default = None,
+    help = "fail if free space for stack is not as large as this"
+)
 
 (options, args) = parser.parse_args()
 
@@ -29,7 +47,6 @@
     parser.error("missing object file name")
 
 
-
 # regexp to parse lines like the following one
 #   959: 000002aa     0 OBJECT  GLOBAL DEFAULT    6 rxdata
 re_obj = re.compile(r':[ \t]+([0-9a-f]+)[ \t]+([0-9a-f]+)[ \t]+(\w+)[ \t]+.* (.*)$')
@@ -96,6 +113,7 @@
 while address >= objs['__data_start'][0] and not mmap.has_key(address):
     address -= 1
     stackmem += 1
+
 # calc total and print summary
 size = objs['__stack'][0] - objs['__data_start'][0]
 print 'RAM usage summary:'
@@ -103,3 +121,8 @@
 print 'the stack can grow up to %d bytes (continous memory at end of RAM)' % (
     stackmem & 0xfffe   #round size, even number
 )
+
+if options.min_stack is not None:
+    if (stackmem & 0xfffe) < options.min_stack:
+        print "ERROR: Stack size is smaller than the given value (--min-stack=%d)" % (options.min_stack,)
+        sys.exit(2)


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