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#!/usr/bin/env python3
# This test script is hereby placed into the public domain
# for anyone to used for any purpose.
#
# Run in test dir as:
# test_dwarfdump.py filetype buildsys sourcedirbase builddirbase
# where filetype is Elf, PE, or Macos
# where buildsys is conf, cmake, or meson
import os
import sys
import shutil
from subprocess import Popen, PIPE, STDOUT
# For reporting differences.
import difflib
gmaxlines = 700
testbase = [
[
"Elf",
"testuriLE64ELf.base",
"testuriLE64ELf.testme",
"junk.LE64ELf.new",
],
[
"Macos",
"test-mach-o-32.base",
"test-mach-o-32.dSYM",
"junk.mach-o.new",
],
["PE", "testobjLE32PE.base", "testobjLE32PE.exe", "junk.PE.new"],
]
class ddfiles:
def __init__(self):
self.testbase = False
self.testobj = False
self.newtest = False
self.ddopts = ""
def ddprint(self):
print("Test baseline :", self.testbase)
print("Test object :", self.testobj)
print("Test output :", self.newtest)
print("Test dd options :", self.ddopts)
class tdata:
def __init__(self):
self.objtype = False
self.buildsystem = False
self.srcbase = False
self.bldbase = False
self.cwd = False
def tprint(self):
print("Testdata objtype :", self.objtype)
print("Testdata build system :", self.buildsystem)
print("Testdata source base dir:", self.srcbase)
print("Testdata build base dir :", self.bldbase)
print("Testdata working dir :", self.cwd)
def setupfilesinvolved(td, dd):
ftype = td.objtype
for n, t in enumerate(testbase):
if not t[0] == ftype:
continue
dd.testbase = t[1]
dd.testobj = t[2]
dd.newtest = t[3]
dd.ddopts = ["-a", "-vvv"]
return
print(" FAIL test_dwarfdump.py to setup files for type ", ftype)
sys.exit(1)
def fixtimestamp(txtout):
# "Fix Last Time to 0 so compares can work ok
# sed 's/last time 0x.*/last time 0x0/' <$i >$t
out = []
for n, s in enumerate(txtout):
f = s.find("last time 0x")
if f == -1:
out += [s]
continue
l = "".join([s[0:f], "last time 0x0"])
# print("dadebug timestamp fixed",l);
out += [l]
return out
def writetextout(text, filepath):
try:
f = open(filepath, "w")
except:
print(
"Unable to write dwarfdump putput ",
filepath,
" giving up",
)
sys.exit(1)
for s in txtout:
# Even on windows writes in Linux text format
print(s.rstrip("\n"), file=f, end="\n")
f.close()
def copytobuild(srcfile, targetfile):
try:
f = open(srcfile, "r")
except:
print("Unable to open input conf ", srcfile, " giving up")
sys.exit(1)
y = f.readlines()
f.close()
try:
w = open(targetfile, "w")
except:
print("Unable to output conf ", targetfile, " giving up")
sys.exit(1)
# print("dadebug write conf file, linecount",len(y))
w.writelines(y)
w.close()
# Read in lines to a list, strip off line-ends.
def getbaseline(path):
try:
f = open(path, "r")
except:
print("Unable to read in conf ", path, " giving up")
sys.exit(1)
y = f.readlines()
# print("dadebug getbaseline return len",len(y))
# y hase line endings (newline)
out = []
for x in y:
out += [x.rstrip()]
return out
# Run dwarfdump, limiting output to gmaxlines lines
def rundwarfdump(td, dd, dwarfdumppath, objpath, lmaxlines):
out = []
print("Run:", dwarfdumppath, dd.ddopts[0], dd.ddopts[1], objpath)
p1 = Popen(
[dwarfdumppath, dd.ddopts[0], dd.ddopts[1], objpath],
stdout=PIPE,
stderr=PIPE,
)
bx = p1.stdout.read()
# bx is a byte array
# For windows this replaces cr lf with lf.
# for Linux does nothing
y = bx.decode("utf-8")
# y is a single long string, multiline.
z = y.splitlines()
for n, s in enumerate(z):
if n >= lmaxlines:
break
out += [s.rstrip()]
return out
# we are in windows copy dll from lib build to
# the dwarfdump build directory.
def copydll(td):
dllpath = os.path.join(td.bldbase,
"src/lib/libdwarf/libdwarf-0.dll")
targetdllpath= os.path.join(td.bldbase,
"src/bin/dwarfdump/libdwarf-0.dll")
if os.path.exists(dllpath):
if not os.path.exists(targetdllpath):
shutil.copy(dllpath,targetdllpath)
if __name__ == "__main__":
if len(sys.argv) != 5:
print("FAIL test_dwarfdump.py arg count wrong")
sys.exit(1)
td = tdata()
td.objtype = sys.argv[1]
td.buildsystem = sys.argv[2]
td.srcbase = sys.argv[3]
td.bldbase = sys.argv[4]
td.cwd = os.getcwd()
print("Running dwarfdump test")
td.tprint()
dd = ddfiles()
setupfilesinvolved(td, dd)
dd.ddprint()
confsrcpath = os.path.join(
td.srcbase, "src/bin/dwarfdump/dwarfdump.conf"
)
conftargpath = os.path.join(td.bldbase, "test", "dwarfdump.conf")
testconf = os.path.exists(conftargpath)
if not testconf:
print(
"Copy to local directory", confsrcpath, "to", conftargpath
)
copytobuild(confsrcpath, conftargpath)
if td.buildsystem == "meson":
mesonloc = os.path.join(td.bldbase, "dwarfdump.conf")
if not os.path.exists(mesonloc):
print(
"Copy to local directory", confsrcpath, "to", mesonloc
)
copytobuild(confsrcpath, mesonloc)
dwarfdumppath = os.path.join(
td.bldbase, "src/bin/dwarfdump/dwarfdump")
dwarfdumppathexe = os.path.join(
td.bldbase, "src/bin/dwarfdump/dwarfdump.exe")
if os.path.exists(dwarfdumppathexe):
dwarfdumppath = dwarfdumppathexe
copydll(td)
objpath = os.path.join(td.srcbase, "test", dd.testobj)
baseline_path = os.path.join(td.srcbase, "test", dd.testbase)
testout_path = os.path.join(td.bldbase, "test", dd.newtest)
# extract N lines from dwarfdump putput
print("Extract ", gmaxlines, "from dwarfdump output")
txtout = rundwarfdump(td, dd, dwarfdumppath, objpath, gmaxlines)
t = fixtimestamp(txtout)
txtout = t
writetextout(txtout, testout_path)
basetext = getbaseline(baseline_path)
# print("now do the diff")
diffs = difflib.unified_diff(basetext, txtout, lineterm="")
used = False
for s in diffs:
print("There are differences.")
used = True
break
if used:
tempfilepath = os.path.join(td.bldbase, "test", dd.newtest)
# For meson will need "test" too
if td.buildsystem == "meson":
tempfilepath = os.path.join(td.cwd, "test", dd.newtest)
else:
tempfilepath = os.path.join(td.cwd, dd.newtest)
print(
"Line Count Base=",
len(basetext),
" Line Count Test=",
len(txtout),
)
for s in diffs:
print(s)
print("FAIL test_dwarfdump.py on", td.objtype, " test object")
print("If update to baseline desired then:")
print("mv", tempfilepath, baseline_path)
sys.exit(1)
print("PASS", td.objtype)
sys.exit(0)
|
