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regtest: Introduce diffctf option 

To compare DWARF and CTF encodings for the same file.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-08-24 15:45:32 -03:00
parent 95734d9437
commit 7455b9b884
1 changed files with 42 additions and 34 deletions
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76
regtest
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@ -14,31 +14,26 @@
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
import filecmp, os, posix, signal, sys
import filecmp, os, posix, signal, sys, tempfile
regtest_output_dir = "/media/tb/pahole/regtest/"
regtest_obj_dir = "/media/tb/debuginfo/usr/lib/debug/"
tools = {"pahole": { "dwarf": "--flat_arrays --show_private_classes --fixup_silly_bitfields" }}
#formats = ("ctf", "dwarf")
formats = ("ctf", )
tools = {"pahole": { "dwarf": "--flat_arrays --show_private_classes --fixup_silly_bitfields --first_obj_only" }}
formats = ("ctf", "dwarf")
len_debug_dir = len(regtest_obj_dir)
len_regtest_output_dir_before = len(regtest_output_dir) + len("before/")
verbose = 9
diff_filename = None
verbose = 1
def diff_file(tool_filename):
global diff_filename
if not diff_filename:
diff_filename = posix.tempnam()
command = 'diff -up "%s" "%s" > %s' % \
(os.path.join(regtest_output_dir, "before", "dwarf", tool_filename),
os.path.join(regtest_output_dir, "after", "dwarf", tool_filename),
diff_filename)
def diff_file(from_filename, to_filename):
fd, diff_filename = tempfile.mkstemp()
command = 'diff -up "%s" "%s" > %s' % (from_filename,
to_filename, diff_filename)
if verbose > 1:
print command
os.system(command)
os.system("vim %s" % diff_filename)
os.unlink(diff_filename)
try:
os.system(command)
os.system("vim %s" % diff_filename)
finally:
os.unlink(diff_filename)
def dir_has_no_diffs(dirname):
return os.access(os.path.join(dirname, ".no_diffs"), os.F_OK)
@ -50,34 +45,38 @@ def set_dir_has_no_diffs(dirname):
def reset_dir_has_no_diffs(dirname):
os.unlink(os.path.join(dirname, ".no_diffs"))
def diff_dir(before, after, dir = None):
def diff_dir(from_dir, to_dir, dir = None):
if dir:
before = os.path.join(before, dir)
after = os.path.join(after, dir)
print "\r%-130s" % before[len_regtest_output_dir_before:],
from_dir = os.path.join(from_dir, dir)
to_dir = os.path.join(to_dir, dir)
print "\r%-130s" % from_dir
sys.stdout.flush()
diff = filecmp.dircmp(before, after)
if not dir_has_no_diffs(after):
diff = filecmp.dircmp(from_dir, to_dir)
if not dir_has_no_diffs(to_dir):
diff_files = diff.diff_files
if diff_files:
diff_files.sort()
print "\n %s:\n %s" % (before, diff_files)
print "\n %s" % from_dir
sys.stdout.flush()
for f in diff_files:
diff_file(os.path.join(before[len_regtest_output_dir_before:], f))
diff_file(os.path.join(from_dir, f),
os.path.join(to_dir, f))
else:
set_dir_has_no_diffs(after)
set_dir_has_no_diffs(to_dir)
common_dirs = diff.common_dirs
if not common_dirs:
return
common_dirs.sort()
for dir in common_dirs:
diff_dir(before, after, dir)
diff_dir(from_dir, to_dir, dir)
def do_diffs():
before = os.path.join(regtest_output_dir, "before")
after = os.path.join(regtest_output_dir, "after")
diff_dir(before, after)
def do_diff_dwarfs2ctfs():
diff_dir(os.path.join(regtest_output_dir, "after", "pahole", "dwarf"),
os.path.join(regtest_output_dir, "after", "pahole", "ctf"))
def do_diff_dwarfs():
diff_dir(os.path.join(regtest_output_dir, "before", "pahole", "dwarf"),
os.path.join(regtest_output_dir, "after", "pahole", "dwarf"))
def do_tool(tool, before_after, format, dirname, fname,
prepend_obj_dir = False):
@ -182,9 +181,10 @@ def main(argv):
if len(argv) > 3:
dirname = argv[2]
for fname in argv[3:]:
diff_file("%s.%s.c" % (os.path.join(dirname, fname)))
diff_file(os.path.join(regtest_output_dir, "before", "pahole", "dwarf", dirname, fname),
os.path.join(regtest_output_dir, "after", "pahole", "dwarf", dirname, fname))
else:
do_diffs()
do_diff_dwarfs()
elif argv[1] == 'ctf':
if len(argv) > 3:
dirname = argv[2]
@ -192,6 +192,14 @@ def main(argv):
do_ctf(dirname, fname, True)
else:
do_ctfs()
elif argv[1] == 'diffctf':
if len(argv) > 3:
dirname = argv[2]
for fname in argv[3:]:
diff_file(os.path.join(regtest_output_dir, "after", "pahole", "dwarf", dirname, fname),
os.path.join(regtest_output_dir, "after", "pahole", "ctf", dirname, fname))
else:
do_diff_dwarfs2ctfs()
except IOError:
pass