Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Date: Fri, 12 Jul 2002 18:50:19 +0400 From: egor duda Reply-To: egor duda Organization: deo X-Priority: 3 (Normal) Message-ID: <18286446082.20020712185019@logos-m.ru> To: Wolfgang Hesseler CC: cygwin@cygwin.com Subject: Re: Bug: BSS segment in COFF files In-Reply-To: <3D2EE7DB.471B@multimediaware.com> References: <3D2EA2E2.2881@multimediaware.com> <8772121004.20020712145134@logos-m.ru> <3D2EBFC2.6973@multimediaware.com> <9975891676.20020712155424@logos-m.ru> <3D2EC616.19DA@multimediaware.com> <9382195250.20020712173928@logos-m.ru> <3D2EE0C2.78D6@multimediaware.com> <17484095953.20020712181108@logos-m.ru> <3D2EE7DB.471B@multimediaware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi! Friday, 12 July, 2002 Wolfgang Hesseler qv@multimediaware.com wrote: >> $ cat x.c >> int a; >> static int b[10000]; >> $ gcc -fno-common -save-temps -c x.c >> $ cat x.s >> .file "x.i" >> .globl _a >> .bss >> .align 4 >> _a: >> .space 4 >> .lcomm _b,40000 >> $ objdump --section-headers x.o >> Idx Name Size VMA LMA File off Algn >> 0 .text 00000000 00000000 00000000 00000000 2**2 >> ALLOC, LOAD, CODE >> 1 .data 00000000 00000000 00000000 00000000 2**2 >> ALLOC, LOAD, DATA >> 2 .bss 00009c48 00000000 00000000 00000000 2**2 >> ALLOC WH> Right. But the whole Cygwin wouldn't work if its programs wouldn't recognize WH> its own object code properly. My problem is that Cygwin produces WH> some non-standard COFF object files. I will do some experiments with WH> objcopy and see if that helps to solve the problem. I suppose it's too early to call it non-standard without strong evidence. For now, you have found that it's somehow incompatible with ida and/or watcom linker, though i did test linking x.o with watcom-compiled test.obj using wlink and everything worked fine. $ cat x.mk project : f:\test\x.exe .SYMBOLIC !include f:\test\x.mk1 $ cat x.mk1 f:\test\test.obj : f:\test\test.c .AUTODEPEND @f: cd f:\test *wcc386 test.c -i=e:\w32app\prog\watc10\h;e:\w32app\prog\watc10\h\nt -w4 -e& 25 -zq -otexan -d2 -mf -5r -bt=nt f:\test\x.exe : f:\test\test.obj f:\test\x.o .AUTODEPEND @f: cd f:\test @%write x.lk1 NAME x @%append x.lk1 FIL test.obj @%append x.lk1 FIL x.o @%append x.lk1 *wlink SYS nt op m d all op st=8192 op maxe=25 op q op symf @x.lk1 $ wmake -f x.mk Watcom Make Version 11.0 Copyright by Sybase, Inc., and its subsidiaries, 1988, 1997. All rights reserved. Watcom is a trademark of Sybase, Inc. cd f:\test wcc386 test.c -i=e:\w32app\prog\watc10\h;e:\w32app\prog\watc10\h\nt -w4 -e25 -zq -otexan -d2 -mf -5r -bt=nt test.c(5): Warning! W107: Missing return value for function 'main' test.c(5): Warning! W301: No prototype found for 'printf' cd f:\test wlink SYS nt op m d all op st=8192 op maxe=25 op q op symf @x.lk1 $ ./x.exe 1 Egor. mailto:deo@logos-m.ru ICQ 5165414 FidoNet 2:5020/496.19 -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/