From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnout Vandecappelle Date: Wed, 19 Sep 2012 23:04:07 +0200 Subject: [Buildroot] thread debugging with target gdb In-Reply-To: <5059E846.8070000@basystemes.fr> References: <5059E846.8070000@basystemes.fr> Message-ID: <505A3347.9010503@mind.be> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On 09/19/12 17:44, Thierry Bultel wrote: > Hi, > I am using buildroot 2012.08 , configured for ARM cortex A9, crosstools and glibc-2.11. > The glibc has been built with 2.6.38.8 headers, my running kernel is 3.2.21, in qemu for versatile express. > > The issue is that thread debugging does not work, first because /lib/libthread_db.so.1 was not pushed on the 'target' > directory > I 'solved' this by adding it: > > CTNG_LIBS_LIB := ld*.so libc.so libcrypt.so libdl.so libgcc_s.so libm.so \ > libnsl.so libpthread.so libresolv.so librt.so libutil.so \ > libthread_db.so It should probably be: ifeq ($(BR2_PACKAGE_GDB_SERVER),y) CTNG_LIBS_LIB += libthread_db.so endif But indeed, it looks like this is missing in crosstools-ng.mk. Yann? > > ... in crosstools-ng.mk > > but is is maybe not the right way. > > I have activated some debug log in gdb, and I am falling into those issues. > > Reading symbols from /root/ihm...done. > (gdb) r > Starting program: /root/ihm > Trying host libthread_db library: libthread_db.so.1. > Host libthread_db.so.1 resolved to: /lib/libthread_db.so.1. Are you running full gdb on the target? You may have more luck with gdbserver on the target and output/host/usr/bin/arm-*-gdb on the host. Don't forget to do 'set sysroot .../output/staging' in gdb. [snip] Regards, Arnout -- Arnout Vandecappelle arnout at mind be Senior Embedded Software Architect +32-16-286540 Essensium/Mind http://www.mind.be G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F