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olliw42
LIBC support: compile error with newlib headers
This happens with arm cortex-m vendor SDK based on FreeRTOS with newlib specs and I don't have a workaround; thanks in advance for any suggestions.
In file included from /home/user/src/camera_app/ext/dialog-sdk/core/system/include/common/da16x_system.h:41,
from /home/user/src/camera_app/src/apps/user_command_server.c:16:
/usr/include/newlib/string.h: At top level:
/usr/include/newlib/string.h:31:9: error: conflicting types for 'memcpy'
31 | void * memcpy (void *__restrict, const void *__restrict, size_t);
| ^~~~~~
In file included from /home/user/src/camera_app/ext/fastmavlink/c_library/uAvionix/../lib/fastmavlink.h:22,
from /home/user/src/camera_app/ext/fastmavlink/c_library/uAvionix/uAvionix.h:40,
from /home/user/src/camera_app/build/sionyx_mavlink_dialect.h:13,
from /home/user/src/camera_app/src/apps/user_command_server.c:11:
/home/user/src/camera_app/ext/fastmavlink/c_library/uAvionix/../lib/fastmavlink_functions.h:453:5: note: previous implicit declaration of 'memcpy' was here
453 | memcpy(msg->payload, &(buf[pos]), msg->len);
| ^~~~~~
In file included from /home/user/src/camera_app/ext/dialog-sdk/core/system/include/common/da16x_system.h:41,
from /home/user/src/camera_app/src/apps/user_command_server.c:16:
/usr/include/newlib/string.h:33:9: error: conflicting types for 'memset'
33 | void * memset (void *, int, size_t);
| ^~~~~~
In file included from /home/user/src/camera_app/ext/fastmavlink/c_library/uAvionix/../lib/fastmavlink.h:22,
from /home/user/src/camera_app/ext/fastmavlink/c_library/uAvionix/uAvionix.h:40,
from /home/user/src/camera_app/build/sionyx_mavlink_dialect.h:13,
from /home/user/src/camera_app/src/apps/user_command_server.c:11:
/home/user/src/camera_app/ext/fastmavlink/c_library/uAvionix/../lib/fastmavlink_functions.h:153:9: note: previous implicit declaration of 'memset' was here
153 | memset(&(msg->payload[msg->len]), 0, msg->payload_max_len - msg->len);
| ^~~~~~
gmake[2]: *** [CMakeFiles/Nightwave.dir/build.make:4012: CMakeFiles/Nightwave.dir/src/apps/user_command_server.c.obj] Error 1
gmake[2]: *** Waiting for unfinished jobs....
gmake[2]: Leaving directory '/home/user/src/camera_app/build'
gmake[1]: *** [CMakeFiles/Makefile2:114: CMakeFiles/Nightwave.dir/all] Error 2
gmake[1]: Leaving directory '/home/user/src/camera_app/build'
gmake: *** [Makefile:94: all] Error 2
ERROR: InvocationError for command /usr/bin/bash -c 'cmake --build build -j $(nproc)' (exited with code 2)
___________________________________ summary ____________________________________
ERROR: build: commands failed
with
$ arm-none-eabi-gcc -v
Using built-in specs.
COLLECT_GCC=arm-none-eabi-gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-none-eabi/10.3.1/lto-wrapper
Target: arm-none-eabi
Configured with: ../configure --build=x86_64-linux-gnu --prefix=/usr --includedir='/usr/lib/include' --mandir='/usr/lib/share/man' --infodir='/usr/lib/share/info' --sysconfdir=/etc --localstatedir=/var --disable-option-checking --disable-silent-rules --libdir='/usr/lib/lib/x86_64-linux-gnu' --libexecdir='/usr/lib/lib/x86_64-linux-gnu' --disable-maintainer-mode --disable-dependency-tracking --mandir=/usr/share/man --enable-languages=c,c++,lto --enable-multilib --disable-decimal-float --disable-libffi --disable-libgomp --disable-libmudflap --disable-libquadmath --disable-libssp --disable-libstdcxx-pch --disable-nls --disable-shared --disable-threads --enable-tls --build=x86_64-linux-gnu --target=arm-none-eabi --with-system-zlib --with-gnu-as --with-gnu-ld --with-pkgversion=15:10.3-2021.07-4 --without-included-gettext --prefix=/usr/lib --infodir=/usr/share/doc/gcc-arm-none-eabi/info --htmldir=/usr/share/doc/gcc-arm-none-eabi/html --pdfdir=/usr/share/doc/gcc-arm-none-eabi/pdf --bindir=/usr/bin --libexecdir=/usr/lib --libdir=/usr/lib --disable-libstdc++-v3 --host=x86_64-linux-gnu --with-headers=no --without-newlib --with-multilib-list=rmprofile,aprofile CFLAGS='-g -O2 -ffile-prefix-map=/build/gcc-arm-none-eabi-qMDwcZ/gcc-arm-none-eabi-10.3-2021.07=. -fstack-protector-strong' CPPFLAGS='-Wdate-time -D_FORTIFY_SOURCE=2' CXXFLAGS='-g -O2 -ffile-prefix-map=/build/gcc-arm-none-eabi-qMDwcZ/gcc-arm-none-eabi-10.3-2021.07=. -fstack-protector-strong' DFLAGS=-frelease FCFLAGS='-g -O2 -ffile-prefix-map=/build/gcc-arm-none-eabi-qMDwcZ/gcc-arm-none-eabi-10.3-2021.07=. -fstack-protector-strong' FFLAGS='-g -O2 -ffile-prefix-map=/build/gcc-arm-none-eabi-qMDwcZ/gcc-arm-none-eabi-10.3-2021.07=. -fstack-protector-strong' GCJFLAGS='-g -O2 -ffile-prefix-map=/build/gcc-arm-none-eabi-qMDwcZ/gcc-arm-none-eabi-10.3-2021.07=. -fstack-protector-strong' LDFLAGS=-Wl,-z,relro OBJCFLAGS='-g -O2 -ffile-prefix-map=/build/gcc-arm-none-eabi-qMDwcZ/gcc-arm-none-eabi-10.3-2021.07=. -fstack-protector-strong' OBJCXXFLAGS='-g -O2 -ffile-prefix-map=/build/gcc-arm-none-eabi-qMDwcZ/gcc-arm-none-eabi-10.3-2021.07=. -fstack-protector-strong' INHIBIT_LIBC_CFLAGS=-DUSE_TM_CLONE_REGISTRY=0 AR_FOR_TARGET=arm-none-eabi-ar AS_FOR_TARGET=arm-none-eabi-as LD_FOR_TARGET=arm-none-eabi-ld NM_FOR_TARGET=arm-none-eabi-nm OBJDUMP_FOR_TARGET=arm-none-eabi-objdump RANLIB_FOR_TARGET=arm-none-eabi-ranlib READELF_FOR_TARGET=arm-none-eabi-readelf STRIP_FOR_TARGET=arm-none-eabi-strip SED=/bin/sed SHELL=/bin/sh BASH=/bin/bash CONFIG_SHELL=/bin/bash
Thread model: single
Supported LTO compression algorithms: zlib
gcc version 10.3.1 20210621 (release) (15:10.3-2021.07-4)
My brain must be full; including newlib string header does fix the build errors, but I have no idea what the "best" integration approach might be on your end.
@sarnold sorry for not having responded earlier, I somehow did not got a warning bell and missed it sadly, I do not have an answer. I am not good with all these different environments and platforms given that memcpy and memset are supposed to be standard, I'm a bit surprised there is an issue with them as regards the first error message in line 31, can you figure out what the conflict we do have here?
