1 import os, signal, subprocess, sys
11 class InternalShellError(Exception):
12 def __init__(self, command, message):
13 self.command = command
14 self.message = message
16 # Don't use close_fds on Windows.
17 kUseCloseFDs = platform.system() != 'Windows'
19 # Use temporary files to replace /dev/null on Windows.
20 kAvoidDevNull = platform.system() == 'Windows'
22 def executeCommand(command, cwd=None, env=None):
23 p = subprocess.Popen(command, cwd=cwd,
24 stdin=subprocess.PIPE,
25 stdout=subprocess.PIPE,
26 stderr=subprocess.PIPE,
28 out,err = p.communicate()
31 # Detect Ctrl-C in subprocess.
32 if exitCode == -signal.SIGINT:
33 raise KeyboardInterrupt
35 return out, err, exitCode
37 def executeShCmd(cmd, cfg, cwd, results):
38 if isinstance(cmd, ShUtil.Seq):
40 res = executeShCmd(cmd.lhs, cfg, cwd, results)
41 return executeShCmd(cmd.rhs, cfg, cwd, results)
44 raise NotImplementedError,"unsupported test command: '&'"
47 res = executeShCmd(cmd.lhs, cfg, cwd, results)
49 res = executeShCmd(cmd.rhs, cfg, cwd, results)
52 res = executeShCmd(cmd.lhs, cfg, cwd, results)
57 res = executeShCmd(cmd.rhs, cfg, cwd, results)
60 raise ValueError,'Unknown shell command: %r' % cmd.op
62 assert isinstance(cmd, ShUtil.Pipeline)
64 input = subprocess.PIPE
66 # To avoid deadlock, we use a single stderr stream for piped
67 # output. This is null until we have seen some output using
69 for i,j in enumerate(cmd.commands):
70 # Apply the redirections, we use (N,) as a sentinal to indicate stdin,
71 # stdout, stderr for N equal to 0, 1, or 2 respectively. Redirects to or
72 # from a file are represented with a list [file, mode, file-object]
73 # where file-object is initially None.
74 redirects = [(0,), (1,), (2,)]
77 redirects[2] = [r[1], 'w', None]
78 elif r[0] == ('>>',2):
79 redirects[2] = [r[1], 'a', None]
80 elif r[0] == ('>&',2) and r[1] in '012':
81 redirects[2] = redirects[int(r[1])]
82 elif r[0] == ('>&',) or r[0] == ('&>',):
83 redirects[1] = redirects[2] = [r[1], 'w', None]
85 redirects[1] = [r[1], 'w', None]
87 redirects[1] = [r[1], 'a', None]
89 redirects[0] = [r[1], 'r', None]
91 raise NotImplementedError,"Unsupported redirect: %r" % (r,)
93 # Map from the final redirections to something subprocess can handle.
95 for index,r in enumerate(redirects):
100 raise NotImplementedError,"Unsupported redirect for stdin"
102 result = subprocess.PIPE
104 result = subprocess.STDOUT
107 raise NotImplementedError,"Unsupported redirect on stdout"
108 result = subprocess.PIPE
111 if kAvoidDevNull and r[0] == '/dev/null':
112 r[2] = tempfile.TemporaryFile(mode=r[1])
114 r[2] = open(r[0], r[1])
115 # Workaround a Win32 and/or subprocess bug when appending.
117 r[2].seek(0, os.SEEK_END)
119 final_redirects.append(result)
121 stdin, stdout, stderr = final_redirects
123 # If stderr wants to come from stdout, but stdout isn't a pipe, then put
124 # stderr on a pipe and treat it as stdout.
125 if (stderr == subprocess.STDOUT and stdout != subprocess.PIPE):
126 stderr = subprocess.PIPE
127 stderrIsStdout = True
129 stderrIsStdout = False
131 # Don't allow stderr on a PIPE except for the last
132 # process, this could deadlock.
134 # FIXME: This is slow, but so is deadlock.
135 if stderr == subprocess.PIPE and j != cmd.commands[-1]:
136 stderr = tempfile.TemporaryFile(mode='w+b')
137 stderrTempFiles.append((i, stderr))
139 # Resolve the executable path ourselves.
141 args[0] = Util.which(args[0], cfg.environment['PATH'])
143 raise InternalShellError(j, '%r: command not found' % j.args[0])
145 procs.append(subprocess.Popen(args, cwd=cwd,
149 env = cfg.environment,
150 close_fds = kUseCloseFDs))
152 # Immediately close stdin for any process taking stdin from us.
153 if stdin == subprocess.PIPE:
154 procs[-1].stdin.close()
155 procs[-1].stdin = None
157 # Update the current stdin source.
158 if stdout == subprocess.PIPE:
159 input = procs[-1].stdout
161 input = procs[-1].stderr
163 input = subprocess.PIPE
165 # FIXME: There is probably still deadlock potential here. Yawn.
166 procData = [None] * len(procs)
167 procData[-1] = procs[-1].communicate()
169 for i in range(len(procs) - 1):
170 if procs[i].stdout is not None:
171 out = procs[i].stdout.read()
174 if procs[i].stderr is not None:
175 err = procs[i].stderr.read()
178 procData[i] = (out,err)
180 # Read stderr out of the temp files.
181 for i,f in stderrTempFiles:
183 procData[i] = (procData[i][0], f.read())
186 for i,(out,err) in enumerate(procData):
187 res = procs[i].wait()
188 # Detect Ctrl-C in subprocess.
189 if res == -signal.SIGINT:
190 raise KeyboardInterrupt
192 results.append((cmd.commands[i], out, err, res))
194 # Python treats the exit code as a signed char.
196 exitCode = min(exitCode, res)
198 exitCode = max(exitCode, res)
203 exitCode = not exitCode
207 def executeScriptInternal(test, litConfig, tmpBase, commands, cwd):
208 ln = ' &&\n'.join(commands)
210 cmd = ShUtil.ShParser(ln, litConfig.isWindows).parse()
212 return (Test.FAIL, "shell parser error on: %r" % ln)
216 exitCode = executeShCmd(cmd, test.config, cwd, results)
217 except InternalShellError,e:
223 for i,(cmd, cmd_out,cmd_err,res) in enumerate(results):
224 out += 'Command %d: %s\n' % (i, ' '.join('"%s"' % s for s in cmd.args))
225 out += 'Command %d Result: %r\n' % (i, res)
226 out += 'Command %d Output:\n%s\n\n' % (i, cmd_out)
227 out += 'Command %d Stderr:\n%s\n\n' % (i, cmd_err)
229 return out, err, exitCode
231 def executeTclScriptInternal(test, litConfig, tmpBase, commands, cwd):
235 # Given the unfortunate way LLVM's test are written, the line gets
236 # backslash substitution done twice.
237 ln = TclUtil.TclLexer(ln).lex_unquoted(process_all = True)
240 tokens = list(TclUtil.TclLexer(ln).lex())
242 return (Test.FAIL, "Tcl lexer error on: %r" % ln)
244 # Validate there are no control tokens.
246 if not isinstance(t, str):
248 "Invalid test line: %r containing %r" % (ln, t))
251 cmds.append(TclUtil.TclExecCommand(tokens).parse_pipeline())
253 return (Test.FAIL, "Tcl 'exec' parse error on: %r" % ln)
257 cmd = ShUtil.Seq(cmd, '&&', c)
259 # FIXME: This is lame, we shouldn't need bash. See PR5240.
260 bashPath = litConfig.getBashPath()
261 if litConfig.useTclAsSh and bashPath:
262 script = tmpBase + '.script'
266 print >>f, 'set -o pipefail'
267 cmd.toShell(f, pipefail = True)
271 print >>sys.stdout, cmd
272 print >>sys.stdout, open(script).read()
276 command = [litConfig.getBashPath(), script]
277 out,err,exitCode = executeCommand(command, cwd=cwd,
278 env=test.config.environment)
280 # Tcl commands fail on standard error output.
283 out = 'Command has output on stderr!\n\n' + out
285 return out,err,exitCode
289 exitCode = executeShCmd(cmd, test.config, cwd, results)
290 except InternalShellError,e:
291 results.append((e.command, '', e.message + '\n', 255))
296 # Tcl commands fail on standard error output.
297 if [True for _,_,err,res in results if err]:
299 out += 'Command has output on stderr!\n\n'
301 for i,(cmd, cmd_out, cmd_err, res) in enumerate(results):
302 out += 'Command %d: %s\n' % (i, ' '.join('"%s"' % s for s in cmd.args))
303 out += 'Command %d Result: %r\n' % (i, res)
304 out += 'Command %d Output:\n%s\n\n' % (i, cmd_out)
305 out += 'Command %d Stderr:\n%s\n\n' % (i, cmd_err)
307 return out, err, exitCode
309 def executeScript(test, litConfig, tmpBase, commands, cwd):
310 script = tmpBase + '.script'
311 if litConfig.isWindows:
316 if litConfig.isWindows:
317 f.write('\nif %ERRORLEVEL% NEQ 0 EXIT\n'.join(commands))
319 f.write(' &&\n'.join(commands))
323 if litConfig.isWindows:
324 command = ['cmd','/c', script]
326 command = ['/bin/sh', script]
327 if litConfig.useValgrind:
328 # FIXME: Running valgrind on sh is overkill. We probably could just
329 # run on clang with no real loss.
330 valgrindArgs = ['valgrind', '-q',
331 '--tool=memcheck', '--trace-children=yes',
332 '--error-exitcode=123']
333 valgrindArgs.extend(litConfig.valgrindArgs)
335 command = valgrindArgs + command
337 return executeCommand(command, cwd=cwd, env=test.config.environment)
339 def isExpectedFail(xfails, xtargets, target_triple):
340 # Check if any xfail matches this target.
342 if item == '*' or item in target_triple:
347 # If so, see if it is expected to pass on this target.
349 # FIXME: Rename XTARGET to something that makes sense, like XPASS.
350 for item in xtargets:
351 if item == '*' or item in target_triple:
356 def parseIntegratedTestScript(test, requireAndAnd):
357 """parseIntegratedTestScript - Scan an LLVM/Clang style integrated test
358 script and extract the lines to 'RUN' as well as 'XFAIL' and 'XTARGET'
359 information. The RUN lines also will have variable substitution performed.
362 # Get the temporary location, this is always relative to the test suite
363 # root, not test source root.
365 # FIXME: This should not be here?
366 sourcepath = test.getSourcePath()
367 execpath = test.getExecPath()
368 execdir,execbase = os.path.split(execpath)
369 tmpBase = os.path.join(execdir, 'Output', execbase)
371 # We use #_MARKER_# to hide %% while we do the other substitutions.
372 substitutions = [('%%', '#_MARKER_#')]
373 substitutions.extend(test.config.substitutions)
374 substitutions.extend([('%s', sourcepath),
375 ('%S', os.path.dirname(sourcepath)),
376 ('%p', os.path.dirname(sourcepath)),
377 ('%t', tmpBase + '.tmp'),
378 # FIXME: Remove this once we kill DejaGNU.
379 ('%abs_tmp', tmpBase + '.tmp'),
380 ('#_MARKER_#', '%')])
382 # Collect the test lines from the script.
386 for ln in open(sourcepath):
388 # Isolate the command to run.
389 index = ln.index('RUN:')
392 # Trim trailing whitespace.
395 # Collapse lines with trailing '\\'.
396 if script and script[-1][-1] == '\\':
397 script[-1] = script[-1][:-1] + ln
401 items = ln[ln.index('XFAIL:') + 6:].split(',')
402 xfails.extend([s.strip() for s in items])
403 elif 'XTARGET:' in ln:
404 items = ln[ln.index('XTARGET:') + 8:].split(',')
405 xtargets.extend([s.strip() for s in items])
407 # Check for END. lines.
408 if ln[ln.index('END.'):].strip() == 'END.':
411 # Apply substitutions to the script.
413 # Apply substitutions
414 for a,b in substitutions:
417 # Strip the trailing newline and any extra whitespace.
419 script = map(processLine, script)
421 # Verify the script contains a run line.
423 return (Test.UNRESOLVED, "Test has no run line!")
425 if script[-1][-1] == '\\':
426 return (Test.UNRESOLVED, "Test has unterminated run lines (with '\\')")
428 # Validate interior lines for '&&', a lovely historical artifact.
430 for i in range(len(script) - 1):
433 if not ln.endswith('&&'):
435 ("MISSING \'&&\': %s\n" +
436 "FOLLOWED BY : %s\n") % (ln, script[i + 1]))
441 isXFail = isExpectedFail(xfails, xtargets, test.suite.config.target_triple)
442 return script,isXFail,tmpBase,execdir
444 def formatTestOutput(status, out, err, exitCode, script):
445 output = StringIO.StringIO()
446 print >>output, "Script:"
448 print >>output, '\n'.join(script)
450 print >>output, "Exit Code: %r" % exitCode
451 print >>output, "Command Output (stdout):"
455 print >>output, "Command Output (stderr):"
459 return (status, output.getvalue())
461 def executeTclTest(test, litConfig):
462 if test.config.unsupported:
463 return (Test.UNSUPPORTED, 'Test is unsupported')
465 res = parseIntegratedTestScript(test, False)
469 script, isXFail, tmpBase, execdir = res
471 if litConfig.noExecute:
472 return (Test.PASS, '')
474 # Create the output directory if it does not already exist.
475 Util.mkdir_p(os.path.dirname(tmpBase))
477 res = executeTclScriptInternal(test, litConfig, tmpBase, script, execdir)
481 out,err,exitCode = res
484 status = (Test.XPASS, Test.XFAIL)[ok]
487 status = (Test.FAIL, Test.PASS)[ok]
492 return formatTestOutput(status, out, err, exitCode, script)
494 def executeShTest(test, litConfig, useExternalSh, requireAndAnd):
495 if test.config.unsupported:
496 return (Test.UNSUPPORTED, 'Test is unsupported')
498 res = parseIntegratedTestScript(test, requireAndAnd)
502 script, isXFail, tmpBase, execdir = res
504 if litConfig.noExecute:
505 return (Test.PASS, '')
507 # Create the output directory if it does not already exist.
508 Util.mkdir_p(os.path.dirname(tmpBase))
511 res = executeScript(test, litConfig, tmpBase, script, execdir)
513 res = executeScriptInternal(test, litConfig, tmpBase, script, execdir)
517 out,err,exitCode = res
520 status = (Test.XPASS, Test.XFAIL)[ok]
523 status = (Test.FAIL, Test.PASS)[ok]
528 return formatTestOutput(status, out, err, exitCode, script)