Message-ID: <000901be5dd5$c3db50e0$fb02e8d4@default>
From: "Crousto" <crousto AT infonie DOT be>
To: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Cc: <djgpp AT delorie DOT com>
Subject: Re: "SIGSEGV error" with WinAllegro+RSXNTDJ
Date: Sun, 21 Feb 1999 21:00:15 +0100
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Reply-To: djgpp AT delorie DOT com

>
>On Sun, 14 Feb 1999, Crousto wrote:
>
>> But when I launch the exe, I got this error 'Exception at 0x00000009,
>> application got signal SIGSEGV'. What does it mean, and what could be
wrong?

>
>In your case, since the address (0x00000009 in the message you cite)
>is very close to zero, the most probable cause is that your program
>calls some functions which aren't present neither in the libraries you
>put on the link command line nor in the DLLs that you have installed.
>The FAQ explains in section 3.6 that the linker (ld.exe) supplied with
>RSXNTDJ doesn't print any messages if some of the functions are
>missing at link time.
>
>The first thing to look for is some library that you failed to mention
>in the link command line.  One way to do that is to find out which
>function is missing, and then use the `nm' utility to find the library
>where that function lives.  To find out which function is missing, use
>the DJGPP's version of ld.exe to link the program, and look up every
>function about which the linker complains as being ``unresolved'' or
>``undefined''.
>

Thanks for help! I've linked with the DJGPP's 'ld', and it report some
unresolved vars in stdcx.a : __dj_ctype_flags, __dj_stdin, __dj_stdout (of
course, my program crash when it uses the C++ streams : cout, cin and
files). The 'nm' utility report those variables in libc.a. But even if I
link this file, the same errors come back. I think that it's because the
linker uses RSXNTDJ's libc.a, which doesn't contain the __dj_... vars. If I
link DJGPP's libc.a, the previous errors are resolved, but I get some new
unresolved vars (like _entry2). So, which LIB directory must be used? Should
the linker have access only to RSXNTDJ .a files, or also to DJGPP's? And
which .a does 'GCC -Zwin32 -Zmt' always link for a C++ code?

Crousto
crousto AT infonie DOT be