From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <40169C35.5020602@gcctech.com> Date: Tue, 27 Jan 2004 12:13:25 -0500 From: "Christopher R. Johnson" Reply-To: cjohnson@gcctech.com MIME-Version: 1.0 To: cjohnson@gcctech.com, linuxppc-dev@lists.linuxppc.org Subject: Re: gdb problems References: <4016965F.5060706@gcctech.com> Content-Type: text/plain; charset=us-ascii; format=flowed Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Ok, answering some of my own questions: in host-side gdb, use the two commands: set solib-absolute-prefix set solib-search-path I set the first to /dev/null and the second to the path where my filesystem is constructed and its /lib directory (where all my shared libs are on the host). All the below error messages go away, but I am left with my original problem. I can set breakpoints but they don't work. What am I missing? Christopher R. Johnson wrote: > > Maybe not the right list for this, if you have a suggestion for > somewhere better let me know... > > My new tool chain build is working well, except that debugging with > gdb/gdbserver is somewhat broken. I figured out that I needed thread_db > and have that built in now and delivered to the target platform. > > Problem #1: When I start host side gdb, I get the message: > warning: unable to find dynamic linker breakpoint function > GDB will be unable to debug shared library initializers > and track explicitly loaded dynamic code > > I don't need to debug initializers, so I set a breakpoint at main and > continue. Two error messages appear: > Error while mapping shared library sections: > /lib/ld.so.1: No such file or directory > Error while mapping shared library symbols: > /lib/ld.so.1: No such file or directory > > The program starts and breakpoint don't work. > > Problem #2: (Maybe related?) on the target side gdbserver, after > starting things with "c" on the host side, this message appears: > gdb: error initializing thread_db library. > gdb: error initializing thread_db library. > > Yes, twice. > > Why is the host side looking in /lib for target libraries? Can I > control that? How? > > Why is gdbserver on the target having trouble? I see I have correctly > delivered the thread_db library in /lib on the target, so what gives? > > Any help or guidance would be greatly appreciated. I build my toolchain > with crosstools. > > -- > Christopher R. Johnson > > > -- Christopher R. Johnson Principal Software Engineer GCC Printers (781)276-8763 ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/