On 15/06/2012 16.37, Bernhard Reutner-Fischer wrote: > On 15 June 2012 04:54, Kevin Cernekee <cerne...@gmail.com> wrote: >> On Wed, Jun 13, 2012 at 12:58 AM, Bernhard Reutner-Fischer >> <rep.dot....@gmail.com> wrote: >>> On Tue, Jun 12, 2012 at 04:52:21PM +0100, Carmelo AMOROSO wrote: >>>> On 07/06/2012 19.32, Kevin Cernekee wrote: >>>>> Move the AS_NEEDED insertion into libc/Makefile.in, and add a case to >>>>> the HARDWIRED_ABSPATH substitution command so libubacktrace is handled >>>>> the same way as the other libraries listed in the script. >>>> >>>> Looks fine to me. >>>> >>> >>> Applied, thanks! >> >> Unfortunately it looks like this could cause some problems when >> bootstrapping a new toolchain. If the libc.so script references >> libubacktrace, but libubacktrace.so.0 is not yet installed anywhere, >> gcc will throw an error during the final link on the other shared >> libraries: >> >> rm -f lib/libdl.so lib/libdl.so.0 lib/libdl-0.9.32.1.so >> arm-linux-uclibcgnueabi-gcc -Wl,-EL -shared -Wl,--warn-common >> -Wl,--warn-once -Wl,-z,combreloc -Wl,-z,relro -Wl,-z,defs >> -Wl,-fini,dl_cleanup -Wl,-soname=libdl.so.0 -nostdlib -o >> lib/libdl-0.9.32.1.so -Wl,--whole-archive ldso/libdl/libdl_so.a >> -Wl,--no-whole-archive ./lib/interp.os -L./lib ./lib/libc.so >> ./lib/ld-uClibc.so.0 >> /ssd/test/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.5.3/libgcc.a >> /ssd/test/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.5.3/libgcc_eh.a >> /ssd/test/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.5.3/../../../../arm-linux-uclibcgnueabi/bin/ld: >> cannot find libubacktrace.so.0 >> collect2: ld returned 1 exit status >> make[1]: *** [lib/libdl.so] Error 1 >> >> >> I did not see this earlier because -nostdlib doesn't actually keep gcc >> from passing ld "-L" arguments pointing into the sysroot directories. >> So it saw my existing libubacktrace.so.0 from the installed sysroot >> and did not complain that libubacktrace.so.0 was missing from the >> uClibc build tree. >> >> Maybe we will need to revert back to this technique, at least in some form? >> >> -# Add the AS_NEEDED entry for libubacktrace.so >> - if [ -f $(top_builddir)lib/libc.so -a -f >> $(PREFIX)$(RUNTIME_PREFIX)$(MULTILIB_DIR)/$(SHARED_LIBNAME) ] ; then \ >> - echo "GROUP ( $(UBACKTRACE_ASNEEDED) )" >> >> $(PREFIX)$(DEVEL_PREFIX)$(MULTILIB_DIR)/libc.so; \ >> - fi >> -endif >> >> I would appreciate any feedback/suggestions. > > What a mess. Carmelo, can you suggest a proper fix please (as > quick-fix i put the static lib into the libc script just to make it > link). > TIA, > >
Hi, the previous logic to update the linker script only at installation time what the only reasonable I've adopted. Indeed libubacktrace is not used from within the uClibc itself. While reviewing I did not put the proper attention on this, my fault. Carmelo _______________________________________________ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
