From mboxrd@z Thu Jan 1 00:00:00 1970 From: Viallard Anthony Date: Tue, 07 Jul 2015 11:44:19 +0200 Subject: [Buildroot] Failed to build gdb on host side In-Reply-To: <5596C015.9070201@mind.be> References: <5596640E.8080604@syscom-instruments.com> <5596C015.9070201@mind.be> Message-ID: <559B9F73.6010101@syscom-instruments.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On 07/03/2015 07:02 PM, Arnout Vandecappelle wrote: > On 07/03/15 12:29, Viallard Anthony wrote: >> Hi, >> >> I have a problem when I enabled gdb compilation on host side: >> >> ---- >> /bin/bash ./libtool --tag=CC --mode=link >> /home/avd/wksp/dev/output/host/usr/bin/ccache /usr/bin/gcc -W -Wall >> -Wstrict-prototypes -Wmissing-prototypes -Wshadow -O2 >> -I/home/avd/wksp/dev/output/host/usr/include -release `cat libtool-soversion` >> -static-libstdc++ -static-libgcc -L/home/avd/wksp/dev/output/host/lib >> -L/home/avd/wksp/dev/output/host/usr/lib >> -Wl,-rpath,/home/avd/wksp/dev/output/host/usr/lib -o libbfd.la -rpath >> /home/avd/wksp/dev/output/host/usr/x86_64-unknown-linux-gnu/arm-buildroot-linux-uclibcgnueabi/lib >> archive.lo archures.lo bfd.lo bfdio.lo bfdwin.lo cache.lo coff-bfd.lo >> compress.lo corefile.lo format.lo hash.lo init.lo libbfd.lo linker.lo merge.lo >> opncls.lo reloc.lo section.lo simple.lo stab-syms.lo stabs.lo syms.lo targets.lo >> binary.lo ihex.lo srec.lo tekhex.lo verilog.lo `cat ofiles` >> -L/home/avd/wksp/dev/output/build/host-gdb-7.9/bfd/../libiberty/pic -liberty > > This is where libiberty should be found... > >> -Wl,-lc,--as-needed,-lm,--no-as-needed -ldl -lz -ldl >> libtool: link: /home/avd/wksp/dev/output/host/usr/bin/ccache /usr/bin/gcc >> -shared -fPIC -DPIC .libs/archive.o .libs/archures.o .libs/bfd.o .libs/bfdio.o >> .libs/bfdwin.o .libs/cache.o .libs/coff-bfd.o .libs/compress.o .libs/corefile.o >> .libs/format.o .libs/hash.o .libs/init.o .libs/libbfd.o .libs/linker.o >> .libs/merge.o .libs/opncls.o .libs/reloc.o .libs/section.o .libs/simple.o >> .libs/stab-syms.o .libs/stabs.o .libs/syms.o .libs/targets.o .libs/binary.o >> .libs/ihex.o .libs/srec.o .libs/tekhex.o .libs/verilog.o .libs/elf32-arm.o >> .libs/elf32.o .libs/elf-nacl.o .libs/elf-vxworks.o .libs/elf.o .libs/elflink.o >> .libs/elf-attrs.o .libs/elf-strtab.o .libs/elf-eh-frame.o .libs/dwarf1.o >> .libs/dwarf2.o .libs/elf32-gen.o .libs/plugin.o .libs/cpu-arm.o >> .libs/cpu-plugin.o .libs/archive64.o -L/home/avd/wksp/dev/output/host/lib >> -L/home/avd/wksp/dev/output/host/usr/lib >> -L/home/avd/wksp/dev/output/build/host-gdb-7.9/bfd/../libiberty/pic -liberty -lz >> -ldl -Wl,-rpath -Wl,/home/avd/wksp/dev/output/host/usr/lib -Wl,-lc >> -Wl,--as-needed -Wl,-lm -Wl,--no-as-needed -Wl,-soname -Wl,libbfd-2.25.51.so >> -o .libs/libbfd-2.25.51.so >> /usr/bin/ld: /home/avd/wksp/dev/output/host/usr/lib/libiberty.a(cplus-dem.o): > > ... but instead, it is found in host/usr/lib. > > That's pretty bad, libiberty should not be installed in the host dir. I also > can't find any code that does that (nothing passes --enable-install-libiberty > except the target binutils). > > So can you trace back which step of the build installed libiberty in the host > dir? Perhaps share your defconfig? > > > Regards, > Arnout > > [snip] > Hi Arnout and all, If I look over the output directory about libiberty.a, here what I find: ---------------- [avd:~/wksp/dev] $ for f in $(find output/ -name "libiberty.a"); do md5sum $f; done 5c79d008976401db98e014f8b4cf74aa output/build/host-gcc-final-4.7.4/build/build-x86_64-unknown-linux-gnu/libiberty/libiberty.a 1139e997c007ab5187665e98c23659f6 output/build/host-gcc-final-4.7.4/build/libiberty/libiberty.a fc9ca886f8c6e8d1cbc3293a496ac179 output/build/host-gcc-final-4.7.4/build/libiberty/pic/libiberty.a 626fcb7a10b75bad14a14886c111e3b4 output/build/host-gcc-initial-4.7.4/build/build-x86_64-unknown-linux-gnu/libiberty/libiberty.a 480750b2bf20cb389ba84d875667c8e0 output/build/host-gcc-initial-4.7.4/build/libiberty/libiberty.a 4903b2aaa94fed7579685aa6789778f2 output/build/host-gcc-initial-4.7.4/build/libiberty/pic/libiberty.a c1303d7bbcf87fb95eb18a604ef1bbc2 output/build/gdb-7.9/gdb/gdbserver/build-libiberty-gdbserver/libiberty.a a86309dd08155fc1b664f7c066402513 output/build/gdb-7.9/gdb/gdbserver/build-libiberty-gdbserver/pic/libiberty.a 09901aa03336b1ef814b866c1a532015 output/build/host-binutils-2.24/libiberty/libiberty.a d228daa645bb5d167ee9d86c2756fa75 output/build/host-gdb-7.9/libiberty/libiberty.a 70b7d21a71b8f79322ca71b3df0e98cf output/build/host-gdb-7.9/libiberty/pic/libiberty.a 96e90ee6aeffcfb418ea31eb9c7ce802 output/host/usr/lib/libiberty.a ---------------- ---------------- [avd:~/wksp/dev] $ for f in $(find output/ -name "libiberty.a"); do ls -l $f; done -rw-r--r-- 1 avd 401332 Jul 6 16:18 output/build/host-gcc-final-4.7.4/build/build-x86_64-unknown-linux-gnu/libiberty/libiberty.a -rw-r--r-- 1 avd 401332 Jul 6 16:18 output/build/host-gcc-final-4.7.4/build/libiberty/libiberty.a -rw-r--r-- 1 avd 405500 Jul 6 16:18 output/build/host-gcc-final-4.7.4/build/libiberty/pic/libiberty.a -rw-r--r-- 1 avd 401332 Jul 6 16:16 output/build/host-gcc-initial-4.7.4/build/build-x86_64-unknown-linux-gnu/libiberty/libiberty.a -rw-r--r-- 1 avd 401332 Jul 6 16:16 output/build/host-gcc-initial-4.7.4/build/libiberty/libiberty.a -rw-r--r-- 1 avd 405500 Jul 6 16:16 output/build/host-gcc-initial-4.7.4/build/libiberty/pic/libiberty.a -rw-r--r-- 1 avd 982840 Jul 6 16:31 output/build/gdb-7.9/gdb/gdbserver/build-libiberty-gdbserver/libiberty.a -rw-r--r-- 1 avd 1003652 Jul 6 16:31 output/build/gdb-7.9/gdb/gdbserver/build-libiberty-gdbserver/pic/libiberty.a -rw-r--r-- 1 avd 447600 Jul 6 16:14 output/build/host-binutils-2.24/libiberty/libiberty.a -rw-r--r-- 1 avd 483720 Jul 6 16:31 output/build/host-gdb-7.9/libiberty/libiberty.a -rw-r--r-- 1 avd 521136 Jul 6 16:31 output/build/host-gdb-7.9/libiberty/pic/libiberty.a -rw-r--r-- 1 avd 401332 Jul 6 16:20 output/host/usr/lib/libiberty.a ---------------- The file libiberty.a seems to come from the gcc-final package but it doesn't have the same md5 hash. I think gcc doesn't make a simple copy but modify the installed ar archive ? Near the end of the build of gcc-final, I can see this: ---------------- make[3]: Leaving directory '/home/avd/wksp/dev/output/build/host-gcc-final-4.7.4/build/libdecnumber' make[3]: Entering directory '/home/avd/wksp/dev/output/build/host-gcc-final-4.7.4/build/libiberty' make[4]: Entering directory '/home/avd/wksp/dev/output/build/host-gcc-final-4.7.4/build/libiberty/testsuite' make[4]: Nothing to be done for 'all'. make[4]: Leaving directory '/home/avd/wksp/dev/output/build/host-gcc-final-4.7.4/build/libiberty/testsuite' make[4]: Entering directory '/home/avd/wksp/dev/output/build/host-gcc-final-4.7.4/build/libiberty/testsuite' make[4]: Nothing to be done for 'install'. make[4]: Leaving directory '/home/avd/wksp/dev/output/build/host-gcc-final-4.7.4/build/libiberty/testsuite' /bin/bash ../../libiberty/../mkinstalldirs /home/avd/wksp/dev/output/host/usr/lib/`/home/avd/wksp/dev/output/host/usr/bin/ccache /usr/bin/gcc -O2 -I/home/avd/wksp/dev/output/host/usr/include -print-multi-os-directory` /usr/bin/install -c -m 644 ./libiberty.a /home/avd/wksp/dev/output/host/usr/lib/`/home/avd/wksp/dev/output/host/usr/bin/ccache /usr/bin/gcc -O2 -I/home/avd/wksp/dev/output/host/usr/include -print-multi-os-directory`/./libiberty.an ( cd /home/avd/wksp/dev/output/host/usr/lib/`/home/avd/wksp/dev/output/host/usr/bin/ccache /usr/bin/gcc -O2 -I/home/avd/wksp/dev/output/host/usr/include -print-multi-os-directory` ; chmod 644 ./libiberty.an ;/usr/bin/ranlib ./libiberty.an ) mv -f /home/avd/wksp/dev/output/host/usr/lib/`/home/avd/wksp/dev/output/host/usr/bin/ccache /usr/bin/gcc -O2 -I/home/avd/wksp/dev/output/host/usr/include -print-multi-os-directory`/./libiberty.an /home/avd/wksp/dev/output/host/usr/lib/`/home/avd/wksp/dev/output/host/usr/bin/ccache /usr/bin/gcc -O2 -I/home/avd/wk\ sp/dev/output/host/usr/include -print-multi-os-directory`/./libiberty.a ---------------- I can see in my build log there is binutils which can install the lib but the install command is surrounded with "if test -n ""; then \" so nothing is done. The openwrt guys did a patch in gcc/final package: https://dev.openwrt.org/changeset/42625 I use gcc 4.7.4. I pasted my config and the build log here: http://dropcanvas.com/k1YRbqW9GW9bMLthese links: Regards, Anthony.