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Date: Mon, 29 Jul 2013 13:06:26 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: 64-bit gdb: invalid decimal " 0x22DBF0"
Message-ID: <20130729110626.GB30069@calimero.vinschen.de>
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References: <51F33E9D DOT 9030703 AT cs DOT utoronto DOT ca> <51F3A133 DOT 8090805 AT star DOT sr DOT bham DOT ac DOT uk>
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On Jul 27 11:30, Daniel Brown wrote:
> I have also ran into this problem, in my case though I have managed
> to reduce the issue down to an fgets call when reading a pipe.
> The following code causes the issue for me if I try and debug it:
> 
> #include <stdio.h>
> #include <stdlib.h>
> 
> int main(int argc, char** argv) {
>     char out[100] = {0};
>     FILE *pipe;
> 
>     if ((pipe = popen("uname -r", "rt")) == NULL)
>         fprintf(stderr,"Failed to execute popen command");
> 
>     if(fgets(out, 100, pipe) == NULL)
>         fprintf(stderr,"Failed to read popen buffer");
> 
>     printf("%s\n", out);
> 
>     pclose(pipe);
> 
>     return (EXIT_SUCCESS);
> }
> 
> I compile with `gcc -g main.c` then `gdb a.exe` and type `run`, the
> error `invalid decimal " 0x23DBF0"` then pops up.
> I have tried the latest snapshot cygwin1.dll (1.7.23s(0.268/5/3))
> and the error is still there.

This is a problem in GDB, not in the Cygwin DLL.  My mistake.  I fetched
the official 7.6 version of GDB since it already contained Cygwin x86_64
support so I thought it's sufficient.  Unfortunately it doesn't handle
special Cygwin strings in terms of Cygwin signal handling correctly.

I'm just uploading a gdb-7.6.50 version build from current CVS which
should fix this.


Thanks for the reports,
Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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