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Message-ID: <440C6D77.1090503@iki.fi>
Date: Mon, 06 Mar 2006 19:12:23 +0200
From: Andris Pavenis <andris DOT pavenis AT iki DOT fi>
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To: djgpp AT delorie DOT com, dn DOT tlp AT gmx DOT net
Subject: Re: Problems with cross-compiled iostreams-using programs
References: <1141636217 DOT 753388 DOT 261560 AT e56g2000cwe DOT googlegroups DOT com>
In-Reply-To: <1141636217.753388.261560@e56g2000cwe.googlegroups.com>
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Reply-To: djgpp AT delorie DOT com

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Simon Peter kirjoitti:
> Hi,
> 
> i got a strange problem with libstdcxx-using programs. I cross-compile
> from Linux with a self-built version of GCC 4.0.2. Whenever any
> iostreams-related feature is used, the program will crash at the
> ios_base constructor.
> 
> The strange thing is that when looking at it with a debugger, the
> memory region where the ios_base constructor should be is completely
> zero, whereas the same region in the executable, examined with objdump,
> is the correct code.

I suspect incompatible linker scripts.

You may try attached patch for binutils-2.16.1 or my RPMs of 
Linux-to-DJGPP cross-compiler, cross-binutils etc . tested on Fedora Core 4:
	http://www.iki.fi/andris.pavenis/djgpp/gcc/cross-compiler

I'll shall put there sometime also SRPM of GCC-4.1.0 cross-compiler
(it's ready but not uploaded)

Andris




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--- binutils-2.16.1/ld/scripttempl/i386go32.sc.linkscript	2005-11-16 10:35:54.000000000 +0200
+++ binutils-2.16.1/ld/scripttempl/i386go32.sc	2005-11-16 10:36:03.000000000 +0200
@@ -35,11 +35,16 @@
     ${RELOCATING+djgpp_first_ctor = . ;
     *(SORT(.ctors.*))
     *(.ctor)
+    *(.ctors)
     djgpp_last_ctor = . ;}
     ${RELOCATING+djgpp_first_dtor = . ;
     *(SORT(.dtors.*))
     *(.dtor)
+    *(.dtors)
     djgpp_last_dtor = . ;}
+    __environ = . ;
+    PROVIDE(_environ = .) ;
+    LONG(0) ;
     *(.data)
     ${RELOCATING+*(.data.*)}
 

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