1 files changed, 56 insertions, 0 deletions
diff --git a/scanners/ifdefs.py b/scanners/ifdefs.py
new file mode 100755
index 0000000..ba817fa
--- /dev/null
+++ b/scanners/ifdefs.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+import os
+import os.path
+import re
+import subprocess
+import sys
+
+def main():
+    '''this scanner counts up the number of instances of #ifdef that
+       have an architecture name in them.
+    '''
+    path = sys.argv[2]
+
+    arches = ['__alpha__', '__alpha_ev[0-9]+__',
+              '__amd64__', '__x64_64__',
+              '__arm__', '__thumb__', '__TARGET_ARM_[0-9A-Z]+__',
+              '__convex__', '__convex_[0-9]+__',
+              '__epiphany__',
+              '__hppa__',  '__PA_RISC[0-9]_[0-9]__', '__HPPA[0-9]+__', 
+                           '__PA[0-9][0-9]00__',
+              '__i[3-6]86__',
+              '__ia64__',
+              '__m68k__', '__mc680[0-9]0__', '__MC680[0-9]0__',
+              '__mips__', '__MIPS_ISA_MIPS[0-9]__',
+              '__powerpc__', '__ppc[0-9]*__',
+              '__sparc__',
+              '__sh[0-9]__',
+              '__s390__', '__s390x__',
+              '__TMS320[0-9A-Z]*__',
+              '__TMS470__',
+             ]
+
+    cmd = 'grep -hr \'^#if[ \\t]*def.*\' %s' % path
+    count = 0
+    findings = ""
+    try:
+        prog = re.compile('|'.join(arches))
+        findings = subprocess.check_output(cmd, shell=True)
+	if findings:
+            for ii in findings.split('\n'):
+                if prog.search(ii):
+                    count += 1
+    except subprocess.CalledProcessError, e:
+        if e.returncode == 1:           # usually means nothing found
+                count = 0
+        else:
+                count = -1
+        
+    result = 'Ifdef-Arch: %d' % count
+    return result
+
+if __name__ == '__main__':
+    result = main()
+
+print result