On Wed, 2023-02-22 at 22:34 -0800, Khem Raj wrote: > On Wed, Feb 22, 2023 at 5:35 PM Khem Raj <raj.k...@gmail.com> wrote: > > > > On Wed, Feb 22, 2023 at 3:43 PM Alexandre Belloni > > <alexandre.bell...@bootlin.com> wrote: > > > > > > Hello, > > > > > > This failed on musl: > > > > > > > checking minix/config.h usability... > > > > ../../gdb-13.1/gdbserver/linux-low.cc: In function 'int > > > > proc_xfer_memory(CORE_ADDR, unsigned char*, const gdb_byte*, int)': > > > > ../../gdb-13.1/gdbserver/linux-low.cc:5393:45: error: expected ':' > > > > before ')' token > > > > 5393 | ? write (fd, writebuf, len)); > > > > | ^ > > > > | : > > > > ../../gdb-13.1/gdbserver/linux-low.cc:5393:45: error: expected > > > > primary-expression before ')' token > > > > ../../gdb-13.1/gdbserver/linux-low.cc:5393:45: error: expected ':' > > > > before ')' token > > > > 5393 | ? write (fd, writebuf, len)); > > > > | ^ > > > > | : > > > > ../../gdb-13.1/gdbserver/linux-low.cc:5393:45: error: expected > > > > primary-expression before ')' token > > > > > > https://autobuilder.yoctoproject.org/typhoon/#/builders/64/builds/6703/steps/11/logs/stdio > > > > > > Note that reproducible still failed: > > > https://autobuilder.yoctoproject.org/typhoon/#/builders/117/builds/2438/steps/13/logs/stdio > > > > > > > I looked into the configure logs on builder as I was not able to > > reproduce here locally. Here is what I see in gdb/config.log, I think > > this node is using buildtools stuff and seems > > its getting libpthread.so.0 from host which needs certain symbols from > > libc which I guess are missing because its linking libc from > > buildtools tarball as well. > > > > configure:28568: checking for ELF support in BFD > > configure:28588: ./libtool --quiet --mode=link gcc -o conftest > > -I../../gdb-13.1/gdb/../include -I../bfd -I../../gdb-13.1/gdb/../bfd > > -isystem/home/pokybuild/yocto-worker/reproducible/build/build-st/reproducibleB/tmp/work/x86_64-linux/gdb-cross-x86_64/13.1-r0/recipe-sysroot-native/usr/include > > -O2 -pipe > > -isystem/home/pokybuild/yocto-worker/reproducible/build/build-st/reproducibleB/tmp/work/x86_64-linux/gdb-cross-x86_64/13.1-r0/recipe-sysroot-native/usr/include > > -I/home/pokybuild/yocto-worker/reproducible/build/build-st/reproducibleB/tmp/work/x86_64-linux/gdb-cross-x86_64/13.1-r0/recipe-sysroot-native/usr/include > > -L../bfd -L../libiberty conftest.c -lbfd -liberty -lncursesw -lm >&5 > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__pause_nocancel@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_dlclose@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_allocate_rtsig_private@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__nanosleep_nocancel@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_dlsym@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_siglongjmp@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_thread_freeres@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_current_sigrtmax_private@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_current_sigrtmin_private@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `_dl_make_stack_executable@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_longjmp@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_dlopen_mode@GLIBC_PRIVATE' > > /home/pokybuild/yocto-worker/reproducible/build/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/gcc/x86_64-pokysdk-linux/12.2.0/../../../../x86_64-pokysdk-linux/bin/ld: > > /lib64/libpthread.so.0: undefined reference to > > `__libc_pthread_init@GLIBC_PRIVATE' > > collect2: error: ld returned 1 exit status > > configure:28588: $? = 1 > > > > > > I have put together a test case on alma8-ty-1 node under /home/pokybuild/khem > if we try to link a .so which has libpthread.so.0 in DT_NEEDED > sections ( libzstd.so in gdb case) that's when problem is seen. > gcc from buildtools tarball mixes things in a somewhat confusing way. > Where it brings libpthread from host's /lib64 > and libc from buildtools tarball install and this combo does end up in > knots resulting in above errors. if we add -pthread to gcc call then > it uses > libpthread from correct path ( which is from buildtools tarball ) > > I can see a workaround is to add -pthread to CC/CXX/LD in gdb-cross > but that just hides the problem IMO, I think gcc from buildtools > tarball > is not behaving as expected and that should be investigated further > builds without buildtools tarballs work fine. > > Unrelated to this but relevant for sure I also saw a patch to fix a > meta-oe recipe from Joshua > > https://patchwork.yoctoproject.org/project/oe/patch/20230222165122.1489645-1-jpewhac...@gmail.com/ > > which could be suffering from the same problem as above which he is > trying to fix by adding -pthread to ldflags.
The test case really helped, thanks Khem. I ran it under strace and noticed the paths were /etc/etc/ld.co.conf within buildtools. That was meaning it was searching in the non- relocatated paths for libpthread. If I added the file, it fixed things. I've sent a patch to binutils to fix the nativesdk variant. I've also rebuild buildtools with that fix, tested it with the test case and it worked. I therefore updated the helper config to use the new buildtools and am trying a full build with that as well as testing on alma8 with a reproducible build. Hopefully that gets to the bottom of things! Cheers, Richard
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