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https://github.com/c64scene-ar/llvm-6502.git
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5a461dd513
commands except the last one, instead redirect the stderr to a temporary file. This sidesteps a potential deadlocking issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82538 91177308-0d34-0410-b5e6-96231b3b80d8
506 lines
16 KiB
Python
506 lines
16 KiB
Python
import os, signal, subprocess, sys
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import StringIO
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import ShUtil
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import Test
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import Util
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import platform
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import tempfile
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class InternalShellError(Exception):
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def __init__(self, command, message):
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self.command = command
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self.message = message
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# Don't use close_fds on Windows.
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kUseCloseFDs = platform.system() != 'Windows'
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def executeCommand(command, cwd=None, env=None):
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p = subprocess.Popen(command, cwd=cwd,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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env=env)
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out,err = p.communicate()
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exitCode = p.wait()
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# Detect Ctrl-C in subprocess.
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if exitCode == -signal.SIGINT:
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raise KeyboardInterrupt
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return out, err, exitCode
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def executeShCmd(cmd, cfg, cwd, results):
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if isinstance(cmd, ShUtil.Seq):
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if cmd.op == ';':
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res = executeShCmd(cmd.lhs, cfg, cwd, results)
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return executeShCmd(cmd.rhs, cfg, cwd, results)
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if cmd.op == '&':
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raise NotImplementedError,"unsupported test command: '&'"
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if cmd.op == '||':
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res = executeShCmd(cmd.lhs, cfg, cwd, results)
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if res != 0:
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res = executeShCmd(cmd.rhs, cfg, cwd, results)
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return res
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if cmd.op == '&&':
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res = executeShCmd(cmd.lhs, cfg, cwd, results)
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if res is None:
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return res
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if res == 0:
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res = executeShCmd(cmd.rhs, cfg, cwd, results)
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return res
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raise ValueError,'Unknown shell command: %r' % cmd.op
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assert isinstance(cmd, ShUtil.Pipeline)
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procs = []
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input = subprocess.PIPE
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stderrTempFiles = []
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# To avoid deadlock, we use a single stderr stream for piped
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# output. This is null until we have seen some output using
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# stderr.
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for i,j in enumerate(cmd.commands):
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redirects = [(0,), (1,), (2,)]
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for r in j.redirects:
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if r[0] == ('>',2):
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redirects[2] = [r[1], 'w', None]
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elif r[0] == ('>&',2) and r[1] in '012':
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redirects[2] = redirects[int(r[1])]
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elif r[0] == ('>&',) or r[0] == ('&>',):
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redirects[1] = redirects[2] = [r[1], 'w', None]
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elif r[0] == ('>',):
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redirects[1] = [r[1], 'w', None]
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elif r[0] == ('<',):
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redirects[0] = [r[1], 'r', None]
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else:
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raise NotImplementedError,"Unsupported redirect: %r" % (r,)
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final_redirects = []
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for index,r in enumerate(redirects):
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if r == (0,):
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result = input
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elif r == (1,):
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if index == 0:
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raise NotImplementedError,"Unsupported redirect for stdin"
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elif index == 1:
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result = subprocess.PIPE
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else:
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result = subprocess.STDOUT
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elif r == (2,):
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if index != 2:
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raise NotImplementedError,"Unsupported redirect on stdout"
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result = subprocess.PIPE
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else:
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if r[2] is None:
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r[2] = open(r[0], r[1])
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result = r[2]
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final_redirects.append(result)
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stdin, stdout, stderr = final_redirects
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# If stderr wants to come from stdout, but stdout isn't a pipe, then put
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# stderr on a pipe and treat it as stdout.
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if (stderr == subprocess.STDOUT and stdout != subprocess.PIPE):
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stderr = subprocess.PIPE
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stderrIsStdout = True
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else:
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stderrIsStdout = False
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# Don't allow stderr on a PIPE except for the last
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# process, this could deadlock.
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#
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# FIXME: This is slow, but so is deadlock.
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if stderr == subprocess.PIPE and j != cmd.commands[-1]:
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stderr = tempfile.TemporaryFile(mode='w+b')
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stderrTempFiles.append((i, stderr))
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# Resolve the executable path ourselves.
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args = list(j.args)
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args[0] = Util.which(args[0], cfg.environment['PATH'])
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if not args[0]:
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raise InternalShellError(j, '%r: command not found' % j.args[0])
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procs.append(subprocess.Popen(args, cwd=cwd,
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stdin = stdin,
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stdout = stdout,
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stderr = stderr,
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env = cfg.environment,
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close_fds = kUseCloseFDs))
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# Immediately close stdin for any process taking stdin from us.
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if stdin == subprocess.PIPE:
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procs[-1].stdin.close()
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procs[-1].stdin = None
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# Update the current stdin source.
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if stdout == subprocess.PIPE:
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input = procs[-1].stdout
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elif stderrIsStdout:
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input = procs[-1].stderr
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else:
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input = subprocess.PIPE
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# FIXME: There is probably still deadlock potential here. Yawn.
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procData = [None] * len(procs)
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procData[-1] = procs[-1].communicate()
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for i in range(len(procs) - 1):
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if procs[i].stdout is not None:
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out = procs[i].stdout.read()
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else:
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out = ''
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if procs[i].stderr is not None:
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err = procs[i].stderr.read()
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else:
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err = ''
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procData[i] = (out,err)
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# Read stderr out of the temp files.
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for i,f in stderrTempFiles:
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f.seek(0, 0)
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procData[i] = (procData[i][0], f.read())
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exitCode = None
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for i,(out,err) in enumerate(procData):
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res = procs[i].wait()
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# Detect Ctrl-C in subprocess.
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if res == -signal.SIGINT:
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raise KeyboardInterrupt
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results.append((cmd.commands[i], out, err, res))
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if cmd.pipe_err:
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# Python treats the exit code as a signed char.
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if res < 0:
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exitCode = min(exitCode, res)
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else:
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exitCode = max(exitCode, res)
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else:
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exitCode = res
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if cmd.negate:
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exitCode = not exitCode
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return exitCode
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def executeScriptInternal(test, litConfig, tmpBase, commands, cwd):
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ln = ' &&\n'.join(commands)
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try:
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cmd = ShUtil.ShParser(ln, litConfig.isWindows).parse()
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except:
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return (Test.FAIL, "shell parser error on: %r" % ln)
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results = []
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try:
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exitCode = executeShCmd(cmd, test.config, cwd, results)
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except InternalShellError,e:
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out = ''
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err = e.message
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exitCode = 255
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out = err = ''
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for i,(cmd, cmd_out,cmd_err,res) in enumerate(results):
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out += 'Command %d: %s\n' % (i, ' '.join('"%s"' % s for s in cmd.args))
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out += 'Command %d Result: %r\n' % (i, res)
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out += 'Command %d Output:\n%s\n\n' % (i, cmd_out)
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out += 'Command %d Stderr:\n%s\n\n' % (i, cmd_err)
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return out, err, exitCode
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def executeTclScriptInternal(test, litConfig, tmpBase, commands, cwd):
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import TclUtil
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cmds = []
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for ln in commands:
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# Given the unfortunate way LLVM's test are written, the line gets
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# backslash substitution done twice.
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ln = TclUtil.TclLexer(ln).lex_unquoted(process_all = True)
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try:
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tokens = list(TclUtil.TclLexer(ln).lex())
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except:
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return (Test.FAIL, "Tcl lexer error on: %r" % ln)
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# Validate there are no control tokens.
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for t in tokens:
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if not isinstance(t, str):
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return (Test.FAIL,
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"Invalid test line: %r containing %r" % (ln, t))
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try:
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cmds.append(TclUtil.TclExecCommand(tokens).parse_pipeline())
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except:
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return (Test.FAIL, "Tcl 'exec' parse error on: %r" % ln)
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cmd = cmds[0]
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for c in cmds[1:]:
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cmd = ShUtil.Seq(cmd, '&&', c)
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if litConfig.useTclAsSh:
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script = tmpBase + '.script'
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# Write script file
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f = open(script,'w')
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print >>f, 'set -o pipefail'
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cmd.toShell(f, pipefail = True)
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f.close()
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if 0:
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print >>sys.stdout, cmd
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print >>sys.stdout, open(script).read()
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print >>sys.stdout
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return '', '', 0
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command = ['/bin/bash', script]
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out,err,exitCode = executeCommand(command, cwd=cwd,
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env=test.config.environment)
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# Tcl commands fail on standard error output.
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if err:
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exitCode = 1
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out = 'Command has output on stderr!\n\n' + out
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return out,err,exitCode
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else:
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results = []
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try:
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exitCode = executeShCmd(cmd, test.config, cwd, results)
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except InternalShellError,e:
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results.append((e.command, '', e.message + '\n', 255))
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exitCode = 255
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out = err = ''
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# Tcl commands fail on standard error output.
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if [True for _,_,err,res in results if err]:
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exitCode = 1
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out += 'Command has output on stderr!\n\n'
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for i,(cmd, cmd_out, cmd_err, res) in enumerate(results):
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out += 'Command %d: %s\n' % (i, ' '.join('"%s"' % s for s in cmd.args))
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out += 'Command %d Result: %r\n' % (i, res)
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out += 'Command %d Output:\n%s\n\n' % (i, cmd_out)
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out += 'Command %d Stderr:\n%s\n\n' % (i, cmd_err)
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return out, err, exitCode
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def executeScript(test, litConfig, tmpBase, commands, cwd):
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script = tmpBase + '.script'
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if litConfig.isWindows:
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script += '.bat'
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# Write script file
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f = open(script,'w')
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if litConfig.isWindows:
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f.write('\nif %ERRORLEVEL% NEQ 0 EXIT\n'.join(commands))
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else:
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f.write(' &&\n'.join(commands))
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f.write('\n')
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f.close()
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if litConfig.isWindows:
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command = ['cmd','/c', script]
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else:
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command = ['/bin/sh', script]
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if litConfig.useValgrind:
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# FIXME: Running valgrind on sh is overkill. We probably could just
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# run on clang with no real loss.
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valgrindArgs = ['valgrind', '-q',
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'--tool=memcheck', '--trace-children=yes',
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'--error-exitcode=123']
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valgrindArgs.extend(litConfig.valgrindArgs)
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command = valgrindArgs + command
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return executeCommand(command, cwd=cwd, env=test.config.environment)
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def parseIntegratedTestScript(test, xfailHasColon, requireAndAnd):
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"""parseIntegratedTestScript - Scan an LLVM/Clang style integrated test
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script and extract the lines to 'RUN' as well as 'XFAIL' and 'XTARGET'
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information. The RUN lines also will have variable substitution performed.
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"""
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# Get the temporary location, this is always relative to the test suite
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# root, not test source root.
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#
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# FIXME: This should not be here?
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sourcepath = test.getSourcePath()
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execpath = test.getExecPath()
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execdir,execbase = os.path.split(execpath)
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tmpBase = os.path.join(execdir, 'Output', execbase)
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# We use #_MARKER_# to hide %% while we do the other substitutions.
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substitutions = [('%%', '#_MARKER_#')]
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substitutions.extend(test.config.substitutions)
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substitutions.extend([('%s', sourcepath),
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('%S', os.path.dirname(sourcepath)),
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('%p', os.path.dirname(sourcepath)),
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('%t', tmpBase + '.tmp'),
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# FIXME: Remove this once we kill DejaGNU.
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('%abs_tmp', tmpBase + '.tmp'),
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('#_MARKER_#', '%')])
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# Collect the test lines from the script.
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script = []
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xfails = []
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xtargets = []
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for ln in open(sourcepath):
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if 'RUN:' in ln:
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# Isolate the command to run.
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index = ln.index('RUN:')
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ln = ln[index+4:]
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# Trim trailing whitespace.
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ln = ln.rstrip()
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# Collapse lines with trailing '\\'.
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if script and script[-1][-1] == '\\':
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script[-1] = script[-1][:-1] + ln
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else:
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script.append(ln)
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elif xfailHasColon and 'XFAIL:' in ln:
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items = ln[ln.index('XFAIL:') + 6:].split(',')
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xfails.extend([s.strip() for s in items])
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elif not xfailHasColon and 'XFAIL' in ln:
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items = ln[ln.index('XFAIL') + 5:].split(',')
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xfails.extend([s.strip() for s in items])
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elif 'XTARGET:' in ln:
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items = ln[ln.index('XTARGET:') + 8:].split(',')
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xtargets.extend([s.strip() for s in items])
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elif 'END.' in ln:
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# Check for END. lines.
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if ln[ln.index('END.'):].strip() == 'END.':
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break
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# Apply substitutions to the script.
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def processLine(ln):
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# Apply substitutions
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for a,b in substitutions:
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ln = ln.replace(a,b)
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# Strip the trailing newline and any extra whitespace.
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return ln.strip()
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script = map(processLine, script)
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# Verify the script contains a run line.
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if not script:
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return (Test.UNRESOLVED, "Test has no run line!")
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if script[-1][-1] == '\\':
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return (Test.UNRESOLVED, "Test has unterminated run lines (with '\\')")
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# Validate interior lines for '&&', a lovely historical artifact.
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if requireAndAnd:
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for i in range(len(script) - 1):
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ln = script[i]
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if not ln.endswith('&&'):
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return (Test.FAIL,
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("MISSING \'&&\': %s\n" +
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"FOLLOWED BY : %s\n") % (ln, script[i + 1]))
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# Strip off '&&'
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script[i] = ln[:-2]
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return script,xfails,xtargets,tmpBase,execdir
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def formatTestOutput(status, out, err, exitCode, script):
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output = StringIO.StringIO()
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print >>output, "Script:"
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print >>output, "--"
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print >>output, '\n'.join(script)
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print >>output, "--"
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print >>output, "Exit Code: %r" % exitCode
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print >>output, "Command Output (stdout):"
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print >>output, "--"
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output.write(out)
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print >>output, "--"
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print >>output, "Command Output (stderr):"
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print >>output, "--"
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output.write(err)
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print >>output, "--"
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return (status, output.getvalue())
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def executeTclTest(test, litConfig):
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if test.config.unsupported:
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return (Test.UNSUPPORTED, 'Test is unsupported')
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res = parseIntegratedTestScript(test, True, False)
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if len(res) == 2:
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return res
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script, xfails, xtargets, tmpBase, execdir = res
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if litConfig.noExecute:
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return (Test.PASS, '')
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# Create the output directory if it does not already exist.
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Util.mkdir_p(os.path.dirname(tmpBase))
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res = executeTclScriptInternal(test, litConfig, tmpBase, script, execdir)
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if len(res) == 2:
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return res
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isXFail = False
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for item in xfails:
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if item == '*' or item in test.suite.config.target_triple:
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isXFail = True
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break
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# If this is XFAIL, see if it is expected to pass on this target.
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if isXFail:
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for item in xtargets:
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if item == '*' or item in test.suite.config.target_triple:
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isXFail = False
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break
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out,err,exitCode = res
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if isXFail:
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ok = exitCode != 0
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status = (Test.XPASS, Test.XFAIL)[ok]
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else:
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ok = exitCode == 0
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status = (Test.FAIL, Test.PASS)[ok]
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if ok:
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return (status,'')
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return formatTestOutput(status, out, err, exitCode, script)
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def executeShTest(test, litConfig, useExternalSh, requireAndAnd):
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if test.config.unsupported:
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return (Test.UNSUPPORTED, 'Test is unsupported')
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res = parseIntegratedTestScript(test, False, requireAndAnd)
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if len(res) == 2:
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return res
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script, xfails, xtargets, tmpBase, execdir = res
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if litConfig.noExecute:
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return (Test.PASS, '')
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# Create the output directory if it does not already exist.
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Util.mkdir_p(os.path.dirname(tmpBase))
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if useExternalSh:
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res = executeScript(test, litConfig, tmpBase, script, execdir)
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else:
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res = executeScriptInternal(test, litConfig, tmpBase, script, execdir)
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if len(res) == 2:
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return res
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out,err,exitCode = res
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if xfails:
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ok = exitCode != 0
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status = (Test.XPASS, Test.XFAIL)[ok]
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else:
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ok = exitCode == 0
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status = (Test.FAIL, Test.PASS)[ok]
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if ok:
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return (status,'')
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return formatTestOutput(status, out, err, exitCode, script)
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