From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25564 invoked by alias); 6 Apr 2013 10:41:31 -0000 Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Received: (qmail 25555 invoked by uid 89); 6 Apr 2013 10:41:30 -0000 X-Spam-SWARE-Status: No, score=-2.1 required=5.0 tests=AWL,BAYES_00,KHOP_THREADED,RCVD_IN_DNSWL_NONE,RCVD_IN_HOSTKARMA_YE,SPF_NEUTRAL,TW_GD autolearn=no version=3.3.1 Received: from gateway11.websitewelcome.com (HELO gateway11.websitewelcome.com) (69.93.164.12) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Sat, 06 Apr 2013 10:41:26 +0000 Received: by gateway11.websitewelcome.com (Postfix, from userid 500) id 01BE77EEA98A0; Sat, 6 Apr 2013 04:41:25 -0600 (CST) Received: from ham01.websitewelcome.com (ham.websitewelcome.com [173.192.111.52]) by gateway11.websitewelcome.com (Postfix) with ESMTP id E50DC7EEA9880 for ; Sat, 6 Apr 2013 04:41:24 -0600 (CST) Received: by ham01.websitewelcome.com (Postfix, from userid 666) id C9D387E6C5D7E; Sat, 6 Apr 2013 05:41:33 -0500 (CDT) X-Spam-Flag2999: NO X-Spam-Level2999: X-Spam-Status2999: "No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.3.1 Received: from montecarlo.websitewelcome.com (montecarlo.websitewelcome.com [174.120.9.66]) by ham01.websitewelcome.com (Postfix) with ESMTP id 6C2337E6C5CE0 for ; Sat, 6 Apr 2013 05:41:33 -0500 (CDT) Received: from [195.189.206.101] (port=36541 helo=[192.168.209.11]) by montecarlo.websitewelcome.com with esmtpsa (TLSv1:DHE-RSA-CAMELLIA256-SHA:256) (Exim 4.80) (envelope-from ) id 1UOQYm-0004zx-7Y; Sat, 06 Apr 2013 05:41:24 -0500 Message-ID: <515FFBD2.6060400@siva.com.mk> Date: Sat, 06 Apr 2013 10:41:00 -0000 From: Ilija Kocho Reply-To: ilijak@siva.com.mk User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130308 Thunderbird/17.0.4 MIME-Version: 1.0 To: Davide Pippa CC: ecos-discuss@sourceware.org References: In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-BWhitelist: no X-Source-Sender: ([192.168.209.11]) [195.189.206.101]:36541 X-Source-Auth: ilijak+siva.mk X-Email-Count: 3 X-Source-Cap: c2l2YW1rO2JpYmltYW47bW9udGVjYXJsby53ZWJzaXRld2VsY29tZS5jb20= Subject: Re: [ECOS] GCC toolchain with HW floating-point enabled X-SW-Source: 2013-04/txt/msg00008.txt.bz2 Hi David. We have a GCC (test) release with FPU support for Cortex-M4F in eCos gnutools. You shall find information for download and installation here. http://ecos.sourceware.org/ml/ecos-discuss/2012-06/msg00047.html As this is still test release, your feedback will be appreciated. Ilija On 06.04.2013 12:23, Davide Pippa wrote: > Hi! > > I've recently updated my ecos CVS, and made a new rom using the new hw > floating point support (I'm compiling for TWR-K70F120M). The rom > builds fine, but the application I used to work with complains during > compilation: > > make all > Building file: ../main.cpp > Invoking: ARM devkitPro Windows GCC C++ Compiler > arm-eabi-g++ -I"H:/Works/Arm/PyIde/roms/01009_TWR-K70F120M/include" > -O0 -Wall -Wa,-adhlns="main.o.lst" -fno-exceptions -fno-rtti -c > -fmessage-length=0 -MMD -MP -MF"main.d" -MT"main.d" -mcpu=cortex-m4 > -mthumb -mfloat-abi=hard -mfpu=vfpv4-d16 -g3 -gdwarf-2 -o "main.o" > "../main.cpp" > ../main.cpp: In function ‘void cyg_user_start()’: > ../main.cpp:33:30: warning: deprecated conversion from string constant > to ‘char*’ [-Wwrite-strings] > ../main.cpp: In function ‘void main_thread_entry(cyg_addrword_t)’: > ../main.cpp:80:87: warning: deprecated conversion from string constant > to ‘char*’ [-Wwrite-strings] > ../main.cpp: In function ‘void udpecho_thread_entry(void*)’: > ../main.cpp:107:20: warning: unused variable ‘port’ [-Wunused-variable] > ../main.cpp:110:9: warning: variable ‘j’ set but not used > [-Wunused-but-set-variable] > Finished building: ../main.cpp > > Building target: demo1.elf > Invoking: ARM devkitPro Windows GCC C++ Linker > arm-eabi-g++ -T"target.ld" -nostdlib > -LH:/Works/Arm/PyIde/roms/01009_TWR-K70F120M/lib -Wl,-Map,demo1.map > -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=vfpv4-d16 -g3 -gdwarf-2 > -o "demo1.elf" ./main.o > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/../../../../arm-eabi/bin/ld: > error: demo1.elf uses VFP register arguments, > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/libgcc.a(bpabi.o) > does not > makefile:59: recipe for target `demo1.elf' failed > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/../../../../arm-eabi/bin/ld: > failed to merge target specific data of file > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/libgcc.a(bpabi.o) > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/../../../../arm-eabi/bin/ld: > error: demo1.elf uses VFP register arguments, > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/libgcc.a(_divdi3.o) > does not > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/../../../../arm-eabi/bin/ld: > failed to merge target specific data of file > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/libgcc.a(_divdi3.o) > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/../../../../arm-eabi/bin/ld: > error: demo1.elf uses VFP register arguments, > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/libgcc.a(_udivdi3.o) > does not > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/../../../../arm-eabi/bin/ld: > failed to merge target specific data of file > /cygdrive/h/Works/Arm/PyIde/tools/gnutools/arm-eabi/bin/../lib/gcc/arm-eabi/4.6.3/libgcc.a(_udivdi3.o) > collect2: ld returned 1 exit status > make: *** [demo1.elf] Error 1 > > The application is built with HW fpu enabled, but it seems that > libgcc.a is not floating-point aware (sort-of?)... is there any new > release of the 4.6.3 gcc toolchain built with floating point support? > Or is there any guide to rebuild the 4.6.3 gcc toolchain myself? > > Thanks! > > Pyper. > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss