Yes, dumper.exe works.
On Wed, 26 Feb 2003, Jon A. Lambert wrote:
> Does dumper.exe work?
>
> I am unable to get the dumper utility to produce a core dump.
> I have read the FAQ, the webpages and searched the mailing lists.
>
> My cygwin.bat startup file contains the following:
> set CYGWIN=error_start=c:\cygwin\bin\dumper.bat
>
> My dumper.bat file contains the following:
> dumper.exe -d %1 %2 %3
> pause
>
> The program in question was compiled with the gcc -g option:
> main() {
> int h;
> h = 1 / 0;
> }
>
> Upon execution I see the following in the cygwin console:
> $ ./div.exe
> 7 [main] div 2296 handle_exceptions: Error while dumping state (probably
> corrupted stack)
> Arithmetic exception (core dumped)
>
> In the cmd.exe console window that dumper.bat starts I see the following:
> C:\cygwin\home\jlambert>dumper.exe -d C:/cygwin/home/jlambert/div.exe 1884
> dumping process #1884 to div.exe.core
> setting bfd architecture: No error
>
> C:\cygwin\home\jlambert>pause
> Press any key to continue . . .
>
> Yet no .core file is produced anywhere.
> I have also tried using dumper.exe directly with the following setting with the
> same results.
> set CYGWIN=error_start=c:\cygwin\bin\dumper.exe
>
> And I have verified that the process number above is correct.
> What am I doing wrong?
You might want to check whether dumper returns with exit status 0 - it's
not all that chatty.
== SNIP ==
try something like this in your dumper.bat:
dumper.exe -d %1 %2 %3
if errorlevel 1 goto had_err
if errorlevel 0 goto endlast
:had_err
echo %errorlevel%
echo error!
:endlast
pause
== SNAP ==
If you get an errorlevel other than 0, it will say there's an error and
give you the return code. If the dumper os not sane, that code will be
65535; if there's n error on the command line, it will be 1.
That won't tell you why the dumper isn't sane, but it will at least get
you somewhere.
Have fun!
rlc
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