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From: "james.hilliard1 at gmail dot com" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sourceware.org Subject: [Bug libc/29621] librtld.os: in function `__register_frame': libgcc/unwind-dw2-fde.c:136: undefined reference to `malloc' Date: Thu, 27 Oct 2022 21:35:21 +0000 [thread overview] Message-ID: <bug-29621-131-SDNc48Udir@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-29621-131@http.sourceware.org/bugzilla/> https://sourceware.org/bugzilla/show_bug.cgi?id=29621 --- Comment #10 from James Hilliard <james.hilliard1 at gmail dot com> --- (In reply to Adhemerval Zanella from comment #9) > (In reply to James Hilliard from comment #8) > > (In reply to Adhemerval Zanella from comment #7) > > > (In reply to James Hilliard from comment #6) > > > > > > > > Full commands: > > > > git clone https://github.com/buildroot/buildroot.git > > > > cd buildroot > > > > git checkout e4ecf82f99f53e55d51e6f74ae5021473aa2bb1d > > > > wget > > > > http://autobuild.buildroot.net/results/883/ > > > > 883b171a856a63540908976592683527fdb21cd2/config > > > > mv config .config > > > > make glibc > > > > > > Ok, with this one I can see the buildroot failure. It seems that it is > > > misconfiguring the stage1 gcc, where the libgcc.a generated is relying on > > > the libc for unwinding (thus why ld.so link is failing). > > > > > > I mimic what build-many-glibcs.py [1] does (which is canonical way to build > > > complete toolchain for glibc) and build a stage1 on buildroot system with: > > > > > > --- > > > ./configure \ > > > --prefix=/tmp/buildroot/output/host \ > > > --build=x86_64-pc-linux-gnu \ > > > --host=x86_64-pc-linux-gnu \ > > > --target=mips64el-glibc-linux-gnu \ > > > > This looks wrong, we aren't building for mips64el(which our autobuilders > > also indicate does not have this particular build failure). > > Our script builds only one toolchain with multilib enabled (which I think it > is not the case for buildroot). In any case, for stage1 either > mips64el-glibc-linux-gnu or mipsel-glibc-linux-gnu works (since for mips64el > gcc still can generates -mabi=32 code). We're building with multilib disabled I think in buildroot here. Maybe there's something in glibc broken for non-multilib builds? > > > > > > --sysconfdir=/tmp/buildroot/output/host/etc \ > > > --localstatedir=/tmp/buildroot/output/host/var \ > > > --target=mipsel-buildroot-linux-gnu \ > > > > Setting target a second time? > > I copy/paste from the stage1 config we use in your script and forget to > remove the mips64el one, using only mipsel-buildroot-linux-gnu should be > suffice. > > > > > > > > > --with-sysroot=/tmp/buildroot/output/host/mipsel-buildroot-linux-gnu/sysroot > > > \ > > > --with-gmp=/tmp/buildroot/output/host \ > > > --with-mpc=/tmp/buildroot/output/host \ > > > --with-mpfr=/tmp/buildroot/output/host \ > > > --with-pkgversion="Buildroot 2022.08-383-ge4ecf82f99-dirty" \ > > > --with-bugurl=http://bugs.buildroot.net/ \ > > > --enable-initfini-array \ > > > --disable-libssp \ > > > --disable-shared \ > > > --disable-threads \ > > > --disable-libatomic \ > > > --disable-decimal-float \ > > > --disable-libffi \ > > > --disable-libgomp \ > > > --disable-libitm \ > > > --disable-libmpx \ > > > --disable-libquadmath \ > > > --disable-libsanitizer \ > > > --without-headers\ > > > --with-newlib \ > > > --enable-languages=c, \ > > > --with-arch=mips32r3 --with-abi=32 --with-nan=legacy --with-fp-32=xx > > > --- > > > > I've attempted to make a build using this configuration but have not been > > able to get a working build. > > > > > > > > And with this stage1 gcc I could finish the glibc build. I am afraid you > > > will need to sort this out on buildroot stage1 configuration flags used on > > > gcc. > > > > I've tested by patching our gcc stage1 > > configure(package/gcc/gcc-initial/gcc-initial.mk). > > > > Replacing HOST_GCC_INITIAL_CONF_OPTS with this for testing: > > HOST_GCC_INITIAL_CONF_OPTS = \ > > --build=x86_64-pc-linux-gnu \ > > --host=x86_64-pc-linux-gnu \ > > --target=$(GNU_TARGET_NAME) \ > > --with-sysroot=$(STAGING_DIR) \ > > --with-gmp=$(HOST_DIR) \ > > --with-mpc=$(HOST_DIR) \ > > --with-mpfr=$(HOST_DIR) \ > > --with-pkgversion="Buildroot $(BR2_VERSION_FULL)" \ > > --with-bugurl=http://bugs.buildroot.net/ \ > > --enable-initfini-array \ > > --disable-libssp \ > > --disable-shared \ > > --disable-threads \ > > --disable-libatomic \ > > --disable-decimal-float \ > > --disable-libffi \ > > --disable-libgomp \ > > --disable-libitm \ > > --disable-libmpx \ > > --disable-libquadmath \ > > --disable-libsanitizer \ > > --without-headers \ > > --with-newlib \ > > --enable-languages=c, \ > > --with-arch=mips32r3 --with-abi=32 --with-nan=legacy --with-fp-32=xx > > > > With this I get the same failure as before. Does this successfully build for > > you? > > > > I did not actually patches the buildroot build system, but rather rebuild > the stage1 gcc at output/build/host-gcc-initial-11.3.0/build with the > configuration, issued make install and rebuild the glibc > (output/build/glibc-2.36-44-g2628500f5dff1dd99c49a09b418b3b1ea3a6b5d3/build). > > It does show to work: > > $ file elf/ld.so > elf/ld.so: ELF 32-bit LSB shared object, MIPS, MIPS32 rel2 version 1 (SYSV), > dynamically linked, with debug_info, not stripped > $ ./elf/ld.so --version > ld.so (Buildroot) stable release version 2.36. > Copyright (C) 2022 Free Software Foundation, Inc. > [...] > $ ./elf/ld.so ./libc.so > GNU C Library (Buildroot) stable release version 2.36. > [...] > > At least qemu mips usermode can actually run the resulting loader. > > > After patching gcc-initial.mk to test I do: > > make clean > > make glibc > > > > > > > > [1] > > > https://sourceware.org/git/?p=glibc.git;a=blob;f=scripts/build-many-glibcs. > > > py;h=5af6f369ae04027911b3407c64716dd1571eae6a;hb=HEAD > > I tried to hack the builroot system without much success, I also tried to > mimic what build-many-glibcs.py does, but I keep seeing the build failure. > > However, if I rebuild the gcc with my hacked config: > > ./configure --prefix=/tmp/buildroot/output/host > --sysconfdir=/tmp/buildroot/output/host/etc > --localstatedir=/tmp/buildroot/output/host/var --disable-gtk-doc > --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation > --disable-debug --with-xmlto=no --with-fop=no --disable-nls > --disable-dependency-tracking --target=mipsel-buildroot-linux-gnu > --with-sysroot=/tmp/buildroot/output/host/mipsel-buildroot-linux-gnu/sysroot > --with-gnu-ld --disable-libssp --disable-multilib --disable-decimal-float > --with-gmp=/tmp/buildroot/output/host --with-mpc=/tmp/buildroot/output/host > --with-mpfr=/tmp/buildroot/output/host --with-pkgversion="Buildroot > 2022.08-383-ge4ecf82f99-dirty" --with-bugurl=http://bugs.buildroot.net/ > --without-zstd --disable-libquadmath --disable-libquadmath-support > --without-isl --without-cloog --with-arch=mips32r3 --with-abi=32 > --with-nan=legacy --with-fp-32=xx --enable-languages=c > --enable-initfini-array --disable-libssp --disable-shared --without-headers > --disable-threads --disable-libatomic --disable-decimal-float > --disable-libffi --disable-libgomp --disable-libitm --disable-libmpx > --disable-libquadmath --disable-libsanitizer --with-newlib > > on the buildroot directory, reinstall it, and the glibc does finish. That's > why I think there is something bogues on buildroot that I can't figure out. Yeah, so building manually like that tends to bypass a lot of our build environment and often ends up with built in host os utilities/dependencies getting pulled in instead of the intended buildroot toolchain versions. So a build succeeding outside of our env like that may not really mean a whole lot in terms of it being a buildroot side bug as building manually may be using a totally different environment that bypasses/sidesteps a bug. -- You are receiving this mail because: You are on the CC list for the bug.
next prev parent reply other threads:[~2022-10-27 21:35 UTC|newest] Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-09-27 19:44 [Bug libc/29621] New: " james.hilliard1 at gmail dot com 2022-09-27 19:44 ` [Bug libc/29621] " james.hilliard1 at gmail dot com 2022-09-29 17:45 ` adhemerval.zanella at linaro dot org 2022-09-29 19:51 ` james.hilliard1 at gmail dot com 2022-10-17 12:42 ` adhemerval.zanella at linaro dot org 2022-10-26 18:54 ` james.hilliard1 at gmail dot com 2022-10-26 19:10 ` adhemerval.zanella at linaro dot org 2022-10-26 19:33 ` james.hilliard1 at gmail dot com 2022-10-27 14:04 ` adhemerval.zanella at linaro dot org 2022-10-27 19:57 ` james.hilliard1 at gmail dot com 2022-10-27 21:05 ` adhemerval.zanella at linaro dot org 2022-10-27 21:35 ` james.hilliard1 at gmail dot com [this message] 2022-10-28 5:28 ` fweimer at redhat dot com 2022-10-28 13:19 ` adhemerval.zanella at linaro dot org 2022-10-28 13:36 ` adhemerval.zanella at linaro dot org 2022-10-28 16:18 ` james.hilliard1 at gmail dot com 2022-10-28 16:32 ` adhemerval.zanella at linaro dot org 2022-10-28 21:23 ` james.hilliard1 at gmail dot com 2022-11-24 17:01 ` arnout at mind dot be 2022-11-24 17:21 ` arnout at mind dot be 2022-11-24 17:27 ` fweimer at redhat dot com 2023-08-07 9:37 ` sam at gentoo dot org 2024-01-11 9:41 ` fweimer at redhat dot com
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