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-rw-r--r--src/python/m5/main.py20
1 files changed, 17 insertions, 3 deletions
diff --git a/src/python/m5/main.py b/src/python/m5/main.py
index 904b241ca..54c54c1d5 100644
--- a/src/python/m5/main.py
+++ b/src/python/m5/main.py
@@ -119,6 +119,8 @@ add_option('-d', "--outdir", metavar="DIR", default=".",
help="Set the output directory to DIR [Default: %default]")
add_option('-i', "--interactive", action="store_true", default=False,
help="Invoke the interactive interpreter after running the script")
+add_option("--pdb", action="store_true", default=False,
+ help="Invoke the python debugger before running the script")
add_option('-p', "--path", metavar="PATH[:PATH]", action='append', split=':',
help="Prepend PATH to the system path when invoking the script")
add_option('-q', "--quiet", action="count", default=0,
@@ -283,11 +285,23 @@ def main():
objects.ExecutionTrace.print_fetchseq = options.print_fetch_seq
objects.ExecutionTrace.print_cpseq = options.print_cpseq
- scope = { '__file__' : sys.argv[0] }
sys.argv = arguments
sys.path = [ os.path.dirname(sys.argv[0]) ] + sys.path
- exec("import readline", scope)
- execfile(sys.argv[0], scope)
+
+ scope = { '__file__' : sys.argv[0] }
+
+ # we want readline if we're doing anything interactive
+ if options.interactive or options.pdb:
+ exec("import readline", scope)
+
+ # if pdb was requested, execfile the thing under pdb, otherwise,
+ # just do the execfile normally
+ if options.pdb:
+ from pdb import Pdb
+ debugger = Pdb()
+ debugger.run('execfile("%s")' % sys.argv[0], scope)
+ else:
+ execfile(sys.argv[0], scope)
# once the script is done
if options.interactive: