@@ -63,6 +63,13 @@ def get_format_descr(format_):
return ""
+def error_write(*lines):
+ sys.stderr.writelines(lines)
+
+def error(*lines):
+ error_write(*lines)
+ sys.exit(1)
+
######################################################################
# backend auto-registration and format compatibility
@@ -521,8 +528,9 @@ def main():
try:
opts, args = getopt.getopt(sys.argv[1:], "", long_options)
except getopt.GetoptError, err:
- # print help information and exit:
- print str(err) # will print something like "option -a not recognized"
+ # print help information and exit
+ # will print something like "option -a not recognized"
+ error_write(str(err)+"\n")
usage()
sys.exit(2)
for opt, arg in opts:
@@ -551,24 +559,19 @@ def main():
usage()
if format_ not in _formats:
- print "Unknown format: %s" % format_
- print
+ error_write("Unknown format: %s\n\n" % format_)
usage()
if backend not in _backends:
- print "Unknown backend: %s" % backend
- print
+ error_write("Unknown backend: %s\n\n" % backend)
usage()
if format_ == 'stap':
if binary == "":
- print '--binary is required for SystemTAP tapset generator'
- sys.exit(1)
+ error("--binary is required for SystemTAP tapset generator\n")
if not probeprefix and not targettype:
- print '--target-type is required for SystemTAP tapset generator'
- sys.exit(1)
+ error("--target-type is required for SystemTAP tapset generator\n")
if not probeprefix and not targetarch:
- print '--target-arch is required for SystemTAP tapset generator'
- sys.exit(1)
+ error("--target-arch is required for SystemTAP tapset generator\n")
if probeprefix == "":
probeprefix = 'qemu.' + targettype + '.' + targetarch