Now, the analysis: according to strace, the spawning process (e.g., the
shell) does receive the Windows exception C0000135 (a.k.a.
STATUS_DLL_NOT_FOUND), handles it, and uses it to set exit code to 0x35.
My guess is that neither cmd.exe nor the Windows launcher install a
handler for the exceptions, and thus the default Windows handler (which
creates a pop-up) is used.
Hi, All:
I met the same problem after I installed mozilla gecko-sdk.
I used strace and got some interesting results:
a.) run with the whole path.
$ strace.exe /cygdrive/d/dev/gecko-sdk/bin/xpidl.exe
strace.exe: error creating process D:/dev/cygwin/cygdrive/d/dev/gecko-sdk/bin/xp
idl.exe, (error 3)
b.) goto that dir, then run
$ strace.exe ./xpidl.exe
--- Process 1736, exception C0000135 at 7C984ED1
[EMAIL PROTECTED] /cygdrive/d/dev/gecko-sdk/bin
It will pop-pu the "cannot find Xxx.dll " windows.
These strange behaviour is caused by path.cc in utils. When given a's
path, it can not parse it correctly (ONLY when with /cygdrive/xxx,
/usr/bin/xxx is OK.) . the attachment shows the evidence.
So It seems cygwin can handle the exception (at least in strace). It
is maybe a question to the bash 3.1.
Best Regards.
Andy
(gdb) r /cygdrive/d/dev/gecko-sdk/bin/xpidl.exe
Starting program: /tmp/cygwin/cygwin-snapshot-20060818-1/winsup/utils/strace.exe
/cygdrive/d/dev/gecko-sdk/bin/xpidl.exe
Loaded symbols for /cygdrive/c/WINDOWS/system32/ntdll.dll
Loaded symbols for /cygdrive/c/WINDOWS/system32/kernel32.dll
Loaded symbols for /cygdrive/c/WINDOWS/system32/msvcrt.dll
Loaded symbols for /cygdrive/c/WINDOWS/system32/advapi32.dll
Loaded symbols for /cygdrive/c/WINDOWS/system32/rpcrt4.dll
Breakpoint 2, main (argc=2, argv=0x3d2c10) at strace.cc:918
918 {
(gdb) n
919 unsigned mask = 0;
(gdb)
920 FILE *ofile = NULL;
(gdb)
921 pid_t pid = 0;
(gdb)
923 int toggle = 0;
(gdb)
924 int sawquiet = -1;
(gdb)
926 if (load_cygwin ())
(gdb)
928 char **av = (char **) cygwin_internal (CW_ARGV);
(gdb)
929 if (av && (DWORD) av != (DWORD) -1)
(gdb)
934 if (!(pgm = strrchr (*argv, '\\')) && !(pgm = strrchr (*argv, '/')))
(gdb)
937 pgm++;
(gdb)
939 while ((opt = getopt_long (argc, argv, opts, longopts, NULL)) != EOF)
(gdb)
1016 if (pid && argv[optind])
(gdb)
1019 if (!pid && !argv[optind])
(gdb)
1022 if (toggle && !pid)
(gdb)
1025 if (!pid)
(gdb)
1026 quiet = sawquiet < 0 || !sawquiet;
(gdb)
1032 if (!mask)
(gdb)
1033 mask = _STRACE_ALL;
(gdb)
1035 if (bufsize)
(gdb)
1038 if (!ofile)
(gdb)
1039 ofile = stdout;
(gdb)
1041 DWORD res = 0;
(gdb)
1042 if (toggle)
(gdb)
1045 res = dostrace (mask, ofile, pid, argv + optind);
(gdb) s
dostrace (mask=1, ofile=0x77c2fca0, pid=0, argv=0x3d2c14) at strace.cc:686
686 if (!pid)
(gdb) n
687 create_child (argv);
(gdb)
strace.exe: error creating process D:\dev\cygwin\cygdrive/d/dev/gecko-sdk/bin/xp
idl.exe, (error 3)
Program exited with code 01.
(gdb) quit
[EMAIL PROTECTED] /tmp/cygwin/cygwin-snapshot-20060818-1/winsup/utils
========== in create_child
328 ret = CreateProcess (0, one_line.buf, /* command line */
(gdb) p one_line.buf
$10 = 0x3d4af0 "D:\\dev\\cygwin\\cygdrive/d/dev/gecko-sdk/bin/xpidl.exe"
(gdb) n
335 if (!ret)
(gdb)
336 error (0, "error creating process %s, (error %d)", *argv,
(gdb) p ret
$11 = 0
[EMAIL PROTECTED] /cygdrive/d/dev/gecko-sdk/bin
$ gdb /tmp/cygwin/cygwin-snapshot-20060818-1/winsup/utils/strace.exe
GNU gdb 6.5.50.20060706-cvs (cygwin-special)
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i686-pc-cygwin"...
(gdb) r ./xpidl.exe
...
...
1045 res = dostrace (mask, ofile, pid, argv + optind);
(gdb) s
dostrace (mask=1, ofile=0x77c2fca0, pid=0, argv=0x3d3f14) at strace.cc:686
686 if (!pid)
(gdb) n
687 create_child (argv);
(gdb)
691 return proc_child (mask, ofile, pid);
(gdb) s
proc_child (mask=1, ofile=0x77c2fca0, pid=0) at strace.cc:594
594 DWORD res = 0;
(gdb) n
598 SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_HIGHEST);
.....
.....
(gdb)
658 if (!ContinueDebugEvent (ev.dwProcessId, ev.dwThreadId, status))
(gdb)
661 if (!processes)
(gdb) n
602 BOOL debug_event = WaitForDebugEvent (&ev, 1000);
(gdb)
603 DWORD status = DBG_CONTINUE;
(gdb)
605 if (bufsize && flush_period > 0 &&
(gdb)
612 if (!debug_event)
(gdb)
615 if (pid)
(gdb)
621 switch (ev.dwDebugEventCode)
(gdb)
648 if (ev.u.Exception.ExceptionRecord.ExceptionCode != STATUS_BRE
AKPOINT)
(gdb)
650 status = DBG_EXCEPTION_NOT_HANDLED;
(gdb)
651 if (ev.u.Exception.dwFirstChance)
(gdb)
652 fprintf (ofile, "--- Process %u, exception %p at %p\n",
ev.dwProcessId,
(gdb) n
--- Process 1996, exception C0000135 at 7C984ED1
658 if (!ContinueDebugEvent (ev.dwProcessId, ev.dwThreadId, status))
(gdb)
========== in create_child
(gdb) n
328 ret = CreateProcess (0, one_line.buf, /* command line */
(gdb)
335 if (!ret)
(gdb) p ret
$3 = 1
(gdb) n
339 CloseHandle (pi.hThread);--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
