From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2565 invoked by alias); 6 Oct 2010 15:51:50 -0000 Received: (qmail 2555 invoked by uid 22791); 6 Oct 2010 15:51:49 -0000 X-SWARE-Spam-Status: No, hits=-1.9 required=5.0 tests=AWL,BAYES_00,TW_FJ,TW_GC,TW_LG,TW_LR,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mail3.caviumnetworks.com (HELO mail3.caviumnetworks.com) (12.108.191.235) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 06 Oct 2010 15:51:42 +0000 Received: from caexch01.caveonetworks.com (Not Verified[192.168.16.9]) by mail3.caviumnetworks.com with MailMarshal (v6,7,2,8378) id ; Wed, 06 Oct 2010 08:52:15 -0700 Received: from caexch01.caveonetworks.com ([192.168.16.9]) by caexch01.caveonetworks.com with Microsoft SMTPSVC(6.0.3790.4675); Wed, 6 Oct 2010 08:51:48 -0700 Received: from dd1.caveonetworks.com ([12.108.191.236]) by caexch01.caveonetworks.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Wed, 6 Oct 2010 08:51:48 -0700 Message-ID: <4CAC9B0C.6030607@caviumnetworks.com> Date: Wed, 06 Oct 2010 15:51:00 -0000 From: David Daney User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.12) Gecko/20100907 Fedora/3.0.7-1.fc12 Thunderbird/3.0.7 MIME-Version: 1.0 To: Andrew Haley , andreas.frisch@multimedia-labs.de CC: java@gcc.gnu.org Subject: Re: gcj static crosscompiling raises issues with boehm-gc References: <20101006084325.67D5931489C5@mail.multimedia-labs.de> <4CAC86DE.6040909@redhat.com> In-Reply-To: <4CAC86DE.6040909@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact java-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: java-owner@gcc.gnu.org X-SW-Source: 2010-10/txt/msg00003.txt.bz2 On 10/06/2010 07:25 AM, Andrew Haley wrote: > On 10/06/2010 09:43 AM, Andreas Frisch wrote: >> hi gcj experts, >> >> i've spent some time already trying to statically cross compile a java source >> for an embedded mipsel architecture. i'm using openembedded and gcc-4.4.4 with >> the latest java part imported from master >> >> in the makefile, i am using the command >> >> $(CROSS_COMPILE)gcj $(JFLAGS) $(SOURCES) \ >> -static-libgcj \ >> -fjni \ >> -g \ >> -o dumphd-mipsel-static \ >> --main=dumphd.core.DumpHD \ >> -nostdlib \ >> -L/dream/oe1.6/dm8000/build/tmp/staging/mipsel-oe-linux/usr/lib \ >> -L/dream/projects/bluray/aacskeys-0.4.0c-mipsel/lib/linux/ \ >> -Wl,-rpath-link,/dream/oe1.6/dm8000/build/tmp/staging/mipsel-oe- >> linux/usr/lib \ >> -Wl,-rpath-link,/dream/projects/bluray/aacskeys-0.4.0c- >> mipsel/lib/linux/ -laacskeys \ >> -shared-libgcc -Wl,-non_shared -lgcj -Wl,-call_shared -lstdc++ - >> Wl,--as-needed -lgcc_s -lpthread -lc -lm -ldl -lrt -Wl,--no-as-needed -Wl,-O1 >> >> this may contain a lot of redundancies or look silly in many ways but for >> right now i just aggregated as much as possible in there from what i could find >> online. >> >> i've also set >> CLASSPATH=/dream/oe1.6/dm8000/build/tmp/cross/mipsel/bin/ecj.jar:./ >> >> when i run make, linking fails: >> >> /dream/oe1.6/dm8000/build/tmp/cross/mipsel/lib/gcc/mipsel-oe- >> linux/4.4.4/../../../../mipsel-oe-linux/bin/ld: warning: cannot find entry >> symbol __start; defaulting to 00000000004084b0 >> /dream/oe1.6/dm8000/build/tmp/cross/mipsel/lib/gcc/mipsel-oe- >> linux/4.4.4/../../../../mipsel-oe-linux/lib/libgcj.a(dyn_load.o): In function >> `GC_register_dynamic_libraries_dl_iterate_phdr': >> /dream/oe1.6/dm8000/build/tmp/work/mipsel-oe-linux/gcc-cross-4.4.4- >> r0.1/gcc-4.4.4/boehm-gc/dyn_load.c:454: undefined reference to `__data_start' >> /dream/oe1.6/dm8000/build/tmp/cross/mipsel/lib/gcc/mipsel-oe- >> linux/4.4.4/../../../../mipsel-oe-linux/lib/libgcj.a(os_dep.o): In function >> `GC_register_data_segments': >> /dream/oe1.6/dm8000/build/tmp/work/mipsel-oe-linux/gcc-cross-4.4.4- >> r0.1/gcc-4.4.4/boehm-gc/os_dep.c:1450: undefined reference to `__data_start' >> collect2: ld returned 1 exit status >> make: *** [dumphd-static-new] Error 1 >> >> i'd be grateful for any suggestions or hints. > > This looks completely broken: it seems to be trying to statically link > against libgcj. Try it without -non_shared. > To expound on this, the '-static-libgcj' option was created so that all the other things you have there would be unneeded. I doubt you want any of: -shared-libgcc -Wl,-non_shared -lgcj -Wl,-call_shared -lstdc++ -Wl,--as-needed -lgcc_s -lpthread -lc -lm -ldl -lrt -Wl,--no-as-needed -Wl,-O1 Start off with -static-libgcj on a very simple 'hello-world' type program. Then start adding all your other things in. David Daney