Re: [DynInst_API:] libiberty/libstdc++ demangler

[Bill Williams <bill@xxxxxxxxxxx>]

On 06/16/2015 11:33 AM, Andrew Gontarek wrote:
> Hi Bill,
>
> On 06/15/2015 05:15 PM, Bill Williams wrote:
> > Weird; normally at least the /usr version of the demangler is built
> > PIC. Does
> > make VERBOSE=1 reflect the correct library search path for libiberty?
> Looks like the search path is incorrect on the link line:
>
> > /opt/gcc/4.8.1/bin/c++  -fPIC  -std=c++11  -fvisibility=hidden
> > -fvisibility-inlines-hidden -W -Wall -Wpointer-arith -Wcast-qual
> > -Woverloaded-virtual -Wcast-align -Wno-non-template-friend -O2 -g
> > -Wl,--no-undefined -shared -Wl,-soname,libcommon.so.8.2 -o
> > libcommon.so.8.2.1 CMakeFiles/common.dir/src/Ident.C.o
> > CMakeFiles/common.dir/src/string-regex.C.o
> > CMakeFiles/common.dir/src/Timer.C.o
> > CMakeFiles/common.dir/src/Types.C.o
> > CMakeFiles/common.dir/src/debugOstream.C.o
> > CMakeFiles/common.dir/src/lprintf.C.o
> > CMakeFiles/common.dir/src/pathName.C.o
> > CMakeFiles/common.dir/src/Time.C.o
> > CMakeFiles/common.dir/src/fraction.C.o
> > CMakeFiles/common.dir/src/timing.C.o
> > CMakeFiles/common.dir/src/stats.C.o
> > CMakeFiles/common.dir/src/Annotatable.C.o
> > CMakeFiles/common.dir/src/MappedFile.C.o
> > CMakeFiles/common.dir/src/sha1.C.o
> > CMakeFiles/common.dir/src/serialize-bin.C.o
> > CMakeFiles/common.dir/src/serialize-xml.C.o
> > CMakeFiles/common.dir/src/util.C.o CMakeFiles/common.dir/src/Node.C.o
> > CMakeFiles/common.dir/src/Gra
> ph.C.o CMakeFiles/common.dir/src/Edge.C.o
> CMakeFiles/common.dir/src/DOT.C.o CMakeFiles/common.dir/src/dyn_regs.C.o
> CMakeFiles/common.dir/src/AST.C.o
> CMakeFiles/common.dir/src/addrtranslate.C.o
> CMakeFiles/common.dir/src/arch-x86.C.o
> CMakeFiles/common.dir/src/arch-power.C.o
> CMakeFiles/common.dir/src/debug_common.C.o
> CMakeFiles/common.dir/src/VariableLocation.C.o
> CMakeFiles/common.dir/src/Buffer.C.o
> CMakeFiles/common.dir/src/MachSyscall.C.o
> CMakeFiles/common.dir/src/linuxKludges.C.o
> CMakeFiles/common.dir/src/timing-linux.C.o
> CMakeFiles/common.dir/src/parseauxv.C.o
> CMakeFiles/common.dir/src/addrtranslate-sysv.C.o
> CMakeFiles/common.dir/src/addrtranslate-auxv.C.o
> CMakeFiles/common.dir/src/addrtranslate-linux.C.o
> -L/tmp/andrewg/stat/install_tmp/lib -Wl,-Bstatic -liberty -Wl,-Bdynamic
> -Wl,-rpath,/tmp/andrewg/stat/install_tmp/lib:::::::::::::::::::::::::::::::::::
>
> > /usr/bin/ld:
> > /opt/gcc/4.8.1/snos/lib/gcc/x86_64-suse-linux/4.8.1/../../../../lib64/libiberty.a(cplus-dem.o):
> > relocation R_X86_64_32S against `_sch_istable' can not be used when
> > making a shared object; recompile with -fPIC
> > /opt/gcc/4.8.1/snos/lib/gcc/x86_64-suse-linux/4.8.1/../../../../lib64/libiberty.a:
> > could not read symbols: Bad value
> Is -DIBERTY_LIBRARIES supposed to override the default search path?
It's supposed to, yeah. The theory is it takes -DIBERTY_LIBRARIES, then 
standard paths, then LIBRARY_PATH, and finally LD_LIBRARY_PATH. 8.2.1 I 
believe suffered from a bug that's fixed on git master, though--in it, 
IBERTY_LIBRARIES should point to the directory containing libiberty, not 
the actual library.
> -Andrew

--
--bw

Bill Williams
Paradyn Project
bill@xxxxxxxxxxx