Linking to standard library fails when compiling in official Docker container (IDFGH-3326) #5308

inkychris · 2020-05-18T11:57:35Z

Environment

espressf/idf Docker image: tags v3.3.2 (also had other linking issues), release-v4.2, and latest.
Build System: Make with the following environment variables set for the container:

AR: xtensa-esp32-elf-ar
AS: xtensa-esp32-elf-as
CC: xtensa-esp32-elf-gcc
CXX: xtensa-esp32-elf-g++
LD: xtensa-esp32-elf-ld
RANLIB: xtensa-esp32-elf-ranlib
STRIP: xtensa-esp32-elf-strip

Compiler version: xtensa-esp32-elf-gcc (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a) 5.2.0 (v4.2 image)

Problem Description

A linker error is encountered when compiling an application, failing to find symbols which appear to be for pthread. The unresolved symbols are flagged within the standard library rather than client code.

Expected Behavior

Application that doesn't directly use pthread is linked successfully to the standard libraries.

Actual Behavior

Linker failure:

/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libc.a(lib_a-stdio.o):(.literal+0x20): warning: _close_r is not implemented and will always fail
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libc.a(lib_a-fseeko.o):(.literal+0x40): warning: _fstat_r is not implemented and will always fail
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libc.a(lib_a-stdio.o):(.literal+0xc): warning: _lseek_r is not implemented and will always fail
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libc.a(lib_a-fopen.o):(.literal+0x18): warning: _open_r is not implemented and will always fail
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libc.a(lib_a-stdio.o):(.literal+0x4): warning: _read_r is not implemented and will always fail
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libc.a(lib_a-stdio.o):(.literal+0x10): warning: _write_r is not implemented and will always fail
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libc.a(lib_a-fclose.o):(.literal+0x10): warning: pthread_setcancelstate is not implemented and will always fail
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libc.a(lib_a-errno.o):(.literal+0x0): warning: __getreent is not implemented and will always fail
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_personality.o):(.literal._ZL28read_encoded_value_with_basehjPKhPj+0x4): undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_personality.o): in function `read_encoded_value_with_base(unsigned char, unsigned int, unsigned char const*, unsigned int*)':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libstdc++-v3/../libgcc/unwind-pe.h:257: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_personality.o): in function `size_of_encoded_value':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libstdc++-v3/../libgcc/unwind-pe.h:88: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_personality.o): in function `base_of_encoded_value(unsigned char, _Unwind_Context*)':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libstdc++-v3/../libgcc/unwind-pe.h:118: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_terminate.o): in function `__cxxabiv1::__terminate(void (*)())':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:48: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_terminate.o):/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:51: more undefined references to `abort' follow
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_alloc.o):(.literal._ZN9__gnu_cxx7__mutex4lockEv[__gnu_cxx::__mutex::lock()]+0x8): undefined reference to `pthread_mutex_lock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_alloc.o):(.literal._ZN9__gnu_cxx13__scoped_lockD5Ev[__gnu_cxx::__scoped_lock::~__scoped_lock()]+0x8): undefined reference to `pthread_mutex_unlock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_alloc.o):(.literal.startup._GLOBAL__sub_I__ZN9__gnu_cxx9__freeresEv+0x0): undefined reference to `pthread_mutex_init'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_alloc.o):(.literal.startup._GLOBAL__sub_I__ZN9__gnu_cxx9__freeresEv+0x4): undefined reference to `pthread_mutex_destroy'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_alloc.o): in function `__gthread_mutex_lock':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/xtensa-esp32-elf/bits/gthr-default.h:761: undefined reference to `pthread_mutex_lock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_alloc.o): in function `__gthread_mutex_unlock':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/ext/concurrence.h:156: undefined reference to `pthread_mutex_unlock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_alloc.o): in function `__gthread_mutex_init_function':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/xtensa-esp32-elf/bits/gthr-default.h:745: undefined reference to `pthread_mutex_init'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_alloc.o): in function `__gthread_mutex_destroy':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/xtensa-esp32-elf/bits/gthr-default.h:752: undefined reference to `pthread_mutex_destroy'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/xtensa-esp32-elf/bits/gthr-default.h:752: undefined reference to `pthread_mutex_destroy'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_globals.o):(.literal.__cxa_get_globals_fast+0x8): undefined reference to `pthread_getspecific'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_globals.o):(.literal.__cxa_get_globals+0x0): undefined reference to `pthread_setspecific'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_globals.o):(.literal.startup._GLOBAL__sub_I___cxa_get_globals_fast+0x4): undefined reference to `pthread_key_create'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_globals.o):(.literal.exit._GLOBAL__sub_D___cxa_get_globals_fast+0x0): undefined reference to `pthread_key_delete'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_globals.o): in function `__gthread_getspecific':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/xtensa-esp32-elf/bits/gthr-default.h:732: undefined reference to `pthread_getspecific'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/xtensa-esp32-elf/bits/gthr-default.h:732: undefined reference to `pthread_getspecific'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_globals.o): in function `__cxa_get_globals':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libstdc++-v3/libsupc++/eh_globals.cc:133: undefined reference to `pthread_setspecific'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_globals.o): in function `__gthread_key_create':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/xtensa-esp32-elf/bits/gthr-default.h:720: undefined reference to `pthread_key_create'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_globals.o): in function `__gthread_key_delete':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libstdc++-v3/include/xtensa-esp32-elf/bits/gthr-default.h:726: undefined reference to `pthread_key_delete'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-xtensa.o): in function `read_encoded_value_with_base':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-pe.h:257: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-xtensa.o): in function `base_of_encoded_value':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-pe.h:120: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-xtensa.o): in function `size_of_encoded_value':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-pe.h:77: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-xtensa.o): in function `_Unwind_RaiseException_Phase2':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind.inc:64: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-xtensa.o): in function `_Unwind_Resume':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind.inc:235: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-xtensa.o):/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind.inc:266: more undefined references to `abort' follow
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-fde.o): in function `__gthread_mutex_lock':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libgcc/./gthr-default.h:760: undefined reference to `pthread_mutex_lock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-fde.o): in function `__gthread_mutex_unlock':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/build/build-cc-gcc-final/xtensa-esp32-elf/libgcc/./gthr-default.h:790: undefined reference to `pthread_mutex_unlock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-fde.o): in function `__register_frame_info_table_bases':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-dw2-fde.c:149: undefined reference to `pthread_mutex_lock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-dw2-fde.c:160: undefined reference to `pthread_mutex_unlock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-fde.o): in function `__deregister_frame_info_bases':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-dw2-fde.c:207: undefined reference to `pthread_mutex_lock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-dw2-fde.c:221: undefined reference to `pthread_mutex_unlock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-dw2-fde.c:221: undefined reference to `abort'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-fde.o): in function `__deregister_frame':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-dw2-fde.c:260: undefined reference to `pthread_mutex_lock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/libgcc.a(unwind-dw2-fde.o): in function `_Unwind_Find_FDE':
/builds/idf/crosstool-NG/.build/xtensa-esp32-elf/src/gcc/libgcc/unwind-dw2-fde.c:1061: undefined reference to `pthread_mutex_unlock'
/opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld: /opt/esp/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/lib/libstdc++.a(eh_term_handler.o):(.data._ZN10__cxxabiv119__terminate_handlerE+0x0): undefined reference to `abort'
collect2: error: ld returned 1 exit status

Steps to reproduce

Create minimal app which includes the standard library:

// main.cpp
#include <string>

int main() {
    std::string test = "Hello, world!";
    return 0;
}

Attempt to compile it inside a container:

$ docker run --rm -it -v ${PWD}:/src -w /src espressif/idf:release-v4.2 xtensa-esp32-elf-g++ main.cpp

The text was updated successfully, but these errors were encountered:

igrr · 2020-05-18T21:05:44Z

@inkychris please try adding --specs=nosys.specs to the compiler command line — this will include default (no-op) implementations of system calls.

(This should work in release/v4.1 and later Docker images, corresponding toolchain release 2019r2 or later. Earlier versions did not provide nosys.specs.)

igrr · 2020-05-19T09:05:36Z

Sorry, apparently we still don't have the stubs for abort and for the pthread functions in libnosys. Will fix this in the future toolchain release.
For now you could work around this by defining no-op implementations of the missing functions.

inkychris · 2020-05-19T09:10:13Z

Ah okay, was just about to give this a try. Will add the stubs in manually and see how that goes!

igrr · 2020-05-19T10:15:01Z

@inkychris Perhaps you could give a hint about what you are trying to achieve? You can get the program to link this way, which might be useful for some cases (like, configuring autoconf/automake based projects), but you won't get an application which can actually run on the chip this way.

inkychris · 2020-05-19T10:26:42Z

I have a static library which is built and distributed for multiple platforms and there is also a private unit-test app that tests the library. This is all done in plain makefiles so for the most part, libraries can generally be compiled by swapping out the respective CC, CXX, etc. variables which is done using different containerised toolchains. The unit-tests are then run either natively or emulated. The library is compiling fine but the test app (which I'd then like to run on the emulator) is failing in the way described above.

ToBoMi · 2020-06-03T09:53:53Z

@inkychris, is your test app using Catch2?

ToBoMi · 2020-06-03T10:05:40Z

Since I receive similar error messages I'll ask for help in this issue.
@igrr can you try to integrate the Catch2 tutorial into esp-idf bluetooth peripheral example to see if it works when done right? (Maybe I make some cmake mistakes here)
I want to test the application with the Catch2 test framework on the target and get a lot of linker errors like shown above.

There is a cmake integration guide which i used to integrate the Catch2 in the mentioned esp-idf example.

I already tried to add --specs=nosys.specs without success.

igrr · 2020-06-03T10:41:17Z

@TobiasBoeschMiele Catch2 is header-only, so it should be possible to use it in IDF. You will need to enable exceptions and likely RTTI support in menuconfig.

Note that I am assuming that your top level project is an ESP-IDF build system project. If your top level project is a plain CMake project, then please make sure you go through the related section of the docs: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/build-system.html#using-esp-idf-in-custom-cmake-projects and check the related example: https://github.com/espressif/esp-idf/tree/7d75213/examples/build_system/cmake/idf_as_lib

inkychris · 2020-06-03T11:00:08Z

I'm using gtest but I think the docs @igrr just linked may be useful. I'm guessing I need to compile and link to any missing idf components that the standard library needs like pthread.

ToBoMi · 2020-06-03T11:15:06Z

@TobiasBoeschMiele Catch2 is header-only, so it should be possible to use it in IDF. You will need to enable exceptions and likely RTTI support in menuconfig.

Note that I am assuming that your top level project is an ESP-IDF build system project. If your top level project is a plain CMake project, then please make sure you go through the related section of the docs: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/build-system.html#using-esp-idf-in-custom-cmake-projects and check the related example: https://github.com/espressif/esp-idf/tree/7d75213/examples/build_system/cmake/idf_as_lib

Top level is an esp-idf project. I'm trying to integrate catch2. I'll try to

enable exceptions and likely RTTI support in menuconfig

I'm tinkering with gtest, too. Thanks for sharing your expirience @inkychris.

ToBoMi · 2020-06-03T14:25:52Z

So I tried to use the options mentioned @igrr

enable exceptions and likely RTTI support in menuconfig

without success.

An example error entry i get looks like this:

c:/espressif_esp_idf_tools/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0/../../../../xtensa-esp32-elf/bin/ld.exe: c:/espressif_esp_idf_tools/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.2.0\libgcc.a(unwind-dw2-fde.o): in function `size_of_encoded_value':
/builds/idf/crosstool-NG/.build/HOST-i686-w64-mingw32/xtensa-esp32-elf/src/gcc/libgcc/unwind-pe.h:88: undefined reference to `abort'

This one is very similar to the ones in the description of @inkychris

ToBoMi · 2020-06-04T08:31:45Z

I think I'll give up on this and run the tests on PC with gcc. It is high level software anyway so hardware stubbing using a wrapper can be done.

antoinecarme · 2020-11-06T22:15:13Z

Just had a similar issue. Would be nice to have this fixed in a coming release of the tool-chain.

https://github.com/antoinecarme/ml2cpp/blob/master/tests/small_devices_experiments/xtensa_missing_symbols.i

StridingDragon · 2022-11-16T02:16:16Z

Has this ever been addressed? I am still seeing this issue.

igrr · 2023-02-24T19:44:27Z

This should be possible now with

docker run --rm -it -v ${PWD}:/src -w /src espressif/idf:latest xtensa-esp32-elf-g++ -ffunction-sections -Wl,-gc-sections main.cpp

(we'll make it work also without -Wl,-gc-sections in a future release)

github-actions bot changed the title ~~Linking to standard library fails when compiling in official Docker container~~ Linking to standard library fails when compiling in official Docker container (IDFGH-3326) May 18, 2020

espressif-bot added the Status: In Progress Work is in progress label Dec 7, 2022

DatanoiseTV mentioned this issue Jan 16, 2023

Feature request: Any plans for Tensilica Xtensa support? rui314/mold#964

Open

espressif-bot closed this as completed in d867b11 Feb 24, 2023

espressif-bot added Resolution: Done Issue is done internally Status: Done Issue is done internally and removed Status: In Progress Work is in progress labels Feb 24, 2023

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Linking to standard library fails when compiling in official Docker container (IDFGH-3326) #5308

Linking to standard library fails when compiling in official Docker container (IDFGH-3326) #5308

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Linking to standard library fails when compiling in official Docker container (IDFGH-3326) #5308

Linking to standard library fails when compiling in official Docker container (IDFGH-3326) #5308

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