# Collect2: error: ld returned 1 exit status **URL:** \ **Category:** Support\ **Created:** [August 24, 2020, 6:54pm UTC](https://discuss.pynq.io/t/collect2-error-ld-returned-1-exit-status/1683 "2020-08-24T18:54:24Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![DuyTrandeLion](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/duytrandelion/32/1187_2.png) [@DuyTrandeLion](https://discuss.pynq.io/u/DuyTrandeLion)\ **Post date:** [August 24, 2020, 6:54pm UTC](https://discuss.pynq.io/t/collect2-error-ld-returned-1-exit-status/1683/1 "2020-08-24T18:54:24Z")
Hello Pynq Support, I am rebuilding PYNQ for Ultra96 to add some customized package and I got **error collect2: error: ld returned 1 exit status** when the script is running gcc-mb. I am have this error with both Ubuntu 16.04 and 18.04. This is a part of the log: [DEBUG] Missing: ‘x86\_64-pc-linux-gnu-windres’ or ‘x86\_64-pc-linux-gnu-windres’ or ‘windres’ : not required. [DEBUG] ‘aarch64-host\_unknown-linux-gnu-ar’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-ar’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-ar’ [DEBUG] ==\> Return status 0 [DEBUG] ‘aarch64-host\_unknown-linux-gnu-as’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-as’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-as’ [DEBUG] ==\> Return status 0 [DEBUG] Missing: ‘aarch64-linux-gnu-dlltool’ or ‘aarch64-linux-gnu-dlltool’ or ‘dlltool’ : not required. [DEBUG] ‘aarch64-host\_unknown-linux-gnu-gcc’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-gcc’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-gcc’ [DEBUG] ==\> Return status 0 [DEBUG] ‘aarch64-host\_unknown-linux-gnu-g++’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-g++’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-g++’ [DEBUG] ==\> Return status 0 [DEBUG] Testing ‘! ( = y )’ [DEBUG] Missing: ‘aarch64-linux-gnu-gnatbind’ or ‘aarch64-linux-gnu-gnatbind’ or ‘gnatbind’ : not required. [DEBUG] Missing: ‘aarch64-linux-gnu-gnatmake’ or ‘aarch64-linux-gnu-gnatmake’ or ‘gnatmake’ : not required. [DEBUG] ‘aarch64-host\_unknown-linux-gnu-ld’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-ld’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-ld’ [DEBUG] ==\> Return status 0 [DEBUG] ‘aarch64-host\_unknown-linux-gnu-nm’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-nm’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-nm’ [DEBUG] ==\> Return status 0 [DEBUG] ‘aarch64-host\_unknown-linux-gnu-objcopy’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-objcopy’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-objcopy’ [DEBUG] ==\> Return status 0 [DEBUG] ‘aarch64-host\_unknown-linux-gnu-objdump’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-objdump’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-objdump’ [DEBUG] ==\> Return status 0 [DEBUG] ‘aarch64-host\_unknown-linux-gnu-ranlib’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-ranlib’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-ranlib’ [DEBUG] ==\> Return status 0 [DEBUG] ‘aarch64-host\_unknown-linux-gnu-strip’ → ‘/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-strip’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/aarch64-host\_unknown-linux-gnu-strip’ [DEBUG] ==\> Return status 0 [DEBUG] Missing: ‘aarch64-linux-gnu-windres’ or ‘aarch64-linux-gnu-windres’ or ‘windres’ : not required. [DEBUG] ‘makeinfo’ → ‘/usr/bin/makeinfo’ [DEBUG] ==\> Executing: ‘chmod’ ‘700’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/bin/makeinfo’ [DEBUG] ==\> Return status 0 [DEBUG] CFLAGS for build compiler: '-O2 -g -I/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/include ’ [DEBUG] LDFLAGS for build compiler: '-L/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/lib ’ [DEBUG] CFLAGS for host compiler: ‘-O2 -g -pipe -I/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/complibs-host/include --sysroot=/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/sysroot.aarch64’ [DEBUG] LDFLAGS for host compiler: ‘-L/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/complibs-host/lib --sysroot=/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/sysroot.aarch64’ [DEBUG] ================================================================= [DEBUG] Checking that we can run gcc -v [DEBUG] ==\> Executing: ‘aarch64-host\_unknown-linux-gnu-gcc’ ‘-v’ [DEBUG] Using built-in specs. [DEBUG] COLLECT\_GCC=/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/aarch64-linux-gnu-gcc [DEBUG] COLLECT\_LTO\_WRAPPER=/tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/…/libexec/gcc/aarch64-linux-gnu/8.2.0/lto-wrapper [DEBUG] Target: aarch64-linux-gnu [DEBUG] Configured with: /proj/esdt\_sdk/gnu\_abe/ABE/builds/lin/arm/arm-linux/snapshots/gcc-8.2.0/configure SHELL=/bin/sh --with-bugurl=[https://bugs.linaro.org](https://bugs.linaro.org) --with-mpc=/proj/esdt\_sdk/gnu\_abe/ABE/builds/lin/aarch64/aarch64-linux/builds/destdir/x86\_64-unknown-linux-gnu --with-mpfr=/proj/esdt\_sdk/gnu\_abe/ABE/builds/lin/aarch64/aarch64-linux/builds/destdir/x86\_64-unknown-linux-gnu --with-gmp=/proj/esdt\_sdk/gnu\_abe/ABE/builds/lin/aarch64/aarch64-linux/builds/destdir/x86\_64-unknown-linux-gnu --with-gnu-as --with-gnu-ld --disable-libstdcxx-pch --disable-libmudflap --with-cloog=no --with-ppl=no --with-isl=no --disable-nls --enable-c99 --enable-gnu-indirect-function --disable-multilib --with-arch=armv8-a --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --enable-multiarch CFLAGS=-O2 CXXFLAGS=-O2 --disable-silent-rules --enable-libquadmath --enable-libg2c --enable-symvers=gnu --enable-libstdcxx-pch --disable-libssp --disable-libmudflap --enable-checking=release --enable-cheaders=c\_global --enable-poison-system-directories --enable-clocale=generic --enable-shared --enable-threads=posix --disable-multilib --enable-c99 --without-local-prefix --enable-lto --disable-bootstrap --with-linker-hash-style=gnu --with-ppl=no --with-cloog=no --without-isl --enable-nls --enable-\_\_cxa\_atexit --with-build-sysroot=/proj/esdt\_sdk/gnu\_abe/ABE/builds/lin/aarch64/aarch64-linux/builds/destdir/x86\_64-unknown-linux-gnu/aarch64-linux-gnu/libc --enable-plugins --enable-linker-build-id --enable-long-long --enable-shared --with-sysroot=/proj/esdt\_sdk/gnu\_abe/ABE/builds/lin/aarch64/aarch64-linux/builds/destdir/x86\_64-unknown-linux-gnu/aarch64-linux-gnu/libc --enable-languages=c,c++,lto --enable-checking=yes --disable-bootstrap --build=x86\_64-unknown-linux-gnu --host=x86\_64-unknown-linux-gnu --target=aarch64-linux-gnu --prefix=/proj/esdt\_sdk/gnu\_abe/ABE/builds/lin/aarch64/aarch64-linux/builds/destdir/x86\_64-unknown-linux-gnu [DEBUG] Thread model: posix [DEBUG] gcc version 8.2.0 (GCC) [DEBUG] ==\> Return status 0 [DEBUG] Checking that we can run gcc -v: done in 0.01s (at 00:01) [DEBUG] ================================================================= [DEBUG] Checking that gcc can compile a trivial program [DEBUG] ==\> Executing: ‘aarch64-host\_unknown-linux-gnu-gcc’ ‘-O2’ ‘-g’ ‘-pipe’ ‘-I/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/complibs-host/include’ ‘–sysroot=/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/sysroot.aarch64’ ‘-L/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/buildtools/complibs-host/lib’ ‘–sysroot=/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/sysroot.aarch64’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/build/test.c’ ‘-o’ ‘/media/duyliontran/Data/xilinx/PYNQ/sdbuild/build/gcc-mb/.build/HOST-aarch64-linux-gnu/microblazeel-xilinx-elf/build/.gccout’ [DEBUG] /tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/…/lib/gcc/aarch64-linux-gnu/8.2.0/…/…/…/…/aarch64-linux-gnu/bin/ld: cannot find crt1.o: No such file or directory [DEBUG] /tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/…/lib/gcc/aarch64-linux-gnu/8.2.0/…/…/…/…/aarch64-linux-gnu/bin/ld: cannot find crti.o: No such file or directory [DEBUG] /tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/…/lib/gcc/aarch64-linux-gnu/8.2.0/…/…/…/…/aarch64-linux-gnu/bin/ld: cannot find -lc [DEBUG] /tools/Xilinx/SDK/2019.1/gnu/aarch64/lin/aarch64-linux/bin/…/lib/gcc/aarch64-linux-gnu/8.2.0/…/…/…/…/aarch64-linux-gnu/bin/ld: cannot find crtn.o: No such file or directory [ERROR] collect2: error: ld returned 1 exit status [ERROR] [ERROR] \>\> [ERROR] \>\> Build failed in step ‘Checking that gcc can compile a trivial program’ [ERROR] \>\> called in step ‘(top-level)’ [ERROR] \>\> [ERROR] \>\> Error happened in: CT\_DoExecLog[scripts/functions@376] [ERROR] \>\> called from: main[scripts/crosstool-NG.sh@611] [ERROR] \>\> [ERROR] \>\> For more info on this error, look at the file: ‘build.log’ [ERROR] \>\> There is a list of known issues, some with workarounds, in: [ERROR] \>\> [Known issues](https://crosstool-ng.github.io/docs/known-issues/) [ERROR] \>\> [ERROR] \>\> NOTE: Your configuration includes features marked EXPERIMENTAL. [ERROR] \>\> Before submitting a bug report, try to reproduce it without enabling [ERROR] \>\> any experimental features. Otherwise, you’ll need to debug it [ERROR] \>\> and present an explanation why it is a bug in crosstool-NG - or [ERROR] \>\> preferably, a fix. [ERROR] \>\> [ERROR] \>\> NOTE: You configuration uses non-default patch sets. Please [ERROR] \>\> select ‘bundled’ as the set of patches applied and attempt [ERROR] \>\> to reproduce this issue. Issues reported with other patch [ERROR] \>\> set selections (none, local, bundled+local) are going to be [ERROR] \>\> closed without explanation. [ERROR] \>\> [ERROR] \>\> If you feel this is a bug in crosstool-NG, report it at: [ERROR] \>\> [Issues · crosstool-ng/crosstool-ng · GitHub](https://github.com/crosstool-ng/crosstool-ng/issues/) [ERROR] \>\> [ERROR] \>\> Make sure your report includes all the information pertinent to this issue. [ERROR] \>\> Read the bug reporting guidelines here: [ERROR] \>\> [Support](http://crosstool-ng.github.io/support/) [ERROR] [ERROR] (elapsed: 0:00.61) I tried to delete the gcc-mb folder, rebuild again but the result is still the same. Similar problem here: [PYNQ 2.5 ct-ng build error](https://discuss.pynq.io/t/pynq-2-5-ct-ng-build-error/1267) Thanks and best regards, Duy ---
**Author:** ![rock](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/rock/32/32_2.png) [@rock](https://discuss.pynq.io/u/rock)\ **Post date:** [August 25, 2020, 8:06pm UTC](https://discuss.pynq.io/t/collect2-error-ld-returned-1-exit-status/1683/2 "2020-08-25T20:06:58Z")
You may want to check if the ct-ng is up-to-date. Have you run setup\_host.sh before you started to build 2.5 image, or did you just use an old VM / Ubuntu machine? ---
**Author:** ![DuyTrandeLion](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/duytrandelion/32/1187_2.png) [@DuyTrandeLion](https://discuss.pynq.io/u/DuyTrandeLion)\ **Post date:** [August 26, 2020, 4:38am UTC](https://discuss.pynq.io/t/collect2-error-ld-returned-1-exit-status/1683/3 "2020-08-26T04:38:21Z")
Hello @rock, I already run setup\_host.sh before starting to build. I use the 18.04 Ubuntu and installed it on the laptop. Everything on my computer is up-to-date. Thanks and best regards, Duy ---
**Author:** ![rock](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/rock/32/32_2.png) [@rock](https://discuss.pynq.io/u/rock)\ **Post date:** [September 4, 2020, 10:02pm UTC](https://discuss.pynq.io/t/collect2-error-ld-returned-1-exit-status/1683/4 "2020-09-04T22:02:10Z")
I would suggest restart the OS, then run make clean before you try make again.