[Buildroot] [PATCH 1/1] package/rhash: fix build failure due to gcc -v

Peter Seiderer ps.report at gmx.net
Sun Dec 13 16:20:10 UTC 2020


Hello Fabrice, Thomas,

On Sun, 13 Dec 2020 17:07:36 +0100, Peter Seiderer <ps.report at gmx.net> wrote:

> Hello Fabrice, Thomas,
> 
> On Sat, 5 Dec 2020 21:44:05 +0100, Fabrice Fontaine <fontaine.fabrice at gmail.com> wrote:
> 
> > Hi,
> > 
> > Le sam. 5 déc. 2020 à 21:31, Thomas Petazzoni
> > <thomas.petazzoni at bootlin.com> a écrit :  
> > >
> > > On Thu,  3 Dec 2020 21:28:53 +0100
> > > Fabrice Fontaine <fontaine.fabrice at gmail.com> wrote:
> > >    
> > > > Fixes:
> > > >  - http://autobuild.buildroot.org/results/8605c16cc28316954ce8b9dcc266974390c5da20
> > > >
> > > > Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>    
> > >
> > > Why isn't gcc -v working ?    
> > I don't know, you can see the full trace here:
> > http://autobuild.buildroot.org/results/8605c16cc28316954ce8b9dcc266974390c5da20/rhash-1.4.0/config.log  
> 
> May be a problem with the toolchain-wrapper?
> 
> 	$ ls -l .../host/bin/arm-linux-gcc
> .../host/bin/arm-linux-gcc -> toolchain-wrapper
> 
> 	$ .../host/bin/arm-linux-gcc -v 
> Using built-in specs.
> COLLECT_GCC=.../host/opt/ext-toolchain/bin/arm-linux-gcc.br_real
> COLLECT_LTO_WRAPPER=.../host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/lto-wrapper
> Target: arm-buildroot-linux-uclibcgnueabihf
> Configured with: ./configure --prefix=/opt/br-arm11-full-nothread-2020.02 --sysconfdir=/opt/br-arm11-full-nothread-2020.02/etc --enable-static --target=arm-buildroot-linux-uclibcgnueabihf --with-sysroot=/opt/br-arm11-full-nothread-2020.02/arm-buildroot-linux-uclibcgnueabihf/sysroot --enable-__cxa_atexit --with-gnu-ld --disable-libssp --disable-multilib --disable-decimal-float --with-gmp=/opt/br-arm11-full-nothread-2020.02 --with-mpc=/opt/br-arm11-full-nothread-2020.02 --with-mpfr=/opt/br-arm11-full-nothread-2020.02 --with-pkgversion='Buildroot 2020.02' --with-bugurl=http://bugs.buildroot.net/ --disable-libquadmath --disable-libsanitizer --disable-tls --disable-threads --disable-libitm --disable-libatomic --without-isl --without-cloog --with-abi=aapcs-linux --with-cpu=arm1176jzf-s --with-fpu=vfp --with-float=hard --with-mode=arm --enable-languages=c,c++ --with-build-time-tools=/opt/br-arm11-full-nothread-2020.02/arm-buildroot-linux-uclibcgnueabihf/bin --enable-shared --disable-libgomp
> Thread model: single
> gcc version 8.3.0 (Buildroot 2020.02) 
> COMPILER_PATH=.../host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/:.../host/opt/ext-toolchain/bin/../libexec/gcc/:.../host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/
> LIBRARY_PATH=.../host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/:.../host/opt/ext-toolchain/bin/../lib/gcc/:.../host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/lib/:.../host/arm-buildroot-linux-uclibcgnueabihf/sysroot/lib/:.../host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib/
> COLLECT_GCC_OPTIONS='-mabi=aapcs-linux' '-mfpu=vfp' '-marm' '-mfloat-abi=hard' '-mcpu=arm1176jzf-s' '-v' '-mtls-dialect=gnu' '-march=armv6kz+fp'
>  .../host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/collect2 -plugin .../host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/liblto_plugin.so -plugin-opt=.../host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/lto-wrapper -plugin-opt=-fresolution=/tmp/ccb9JJ1m.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s --sysroot=.../host/arm-buildroot-linux-uclibcgnueabihf/sysroot --eh-frame-hdr -dynamic-linker /lib/ld-uClibc.so.0 -X -m armelf_linux_eabi .../host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib/crt1.o .../host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib/crti.o .../host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/crtbegin.o -L.../host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0 -L.../host/opt/ext-toolchain/bin/../lib/gcc -L.../host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/lib -L.../host/arm-buildroot-linux-uclibcgnueabihf/sysroot/lib -L.../host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib -z relro -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed .../host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/crtend.o .../host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib/crtn.o
> .../host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: .../host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib/crt1.o: in function `_start':
> (.text+0x34): undefined reference to `main'
> collect2: error: ld returned 1 exit status
> 
> 
> The toolchain-wrapper seems to do/try some compile after the '-v'
> handling (all output after the 'gcc version 8.3.0 (Buildroot 2020.02)'
> line)

A strace of

	$ .../host/bin/arm-linux-gcc -v

shows

	24399 execve(".../host/opt/ext-toolchain/bin/arm-linux-gcc.br_real", ["/home/seiderer/Work/Buildroot/bu"..., "--sysroot", "/.../bu"..., "-mabi=aapcs-linux", "-mfpu=vfp", "-marm", "-mfloat-abi=hard", "-mcpu=arm1176jzf-s", "-Wl,-z,relro", "-v"], 0x7ffca405b940 /* 93 vars */) = 0


This one works:

	$ .../host/opt/ext-toolchain/bin/arm-linux-gcc.br_real --sysroot bla -mabi=aapcs-linux -mfpu=vfp -marm -mfloat-abi=hard -mcpu=arm1176jzf-s  -v

This one fails:

	$ .../host/opt/ext-toolchain/bin/arm-linux-gcc.br_real --sysroot bla -mabi=aapcs-linux -mfpu=vfp -marm -mfloat-abi=hard -mcpu=arm1176jzf-s -Wl,-z,relro -v

Regards,
Peter


> 
> The gcc -v output from the host for compare:
> 
> 	$ gcc -v
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-suse-linux/10/lto-wrapper
> OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
> OFFLOAD_TARGET_DEFAULT=1
> Target: x86_64-suse-linux
> Configured with: ../configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64 --enable-languages=c,c++,objc,fortran,obj-c++,ada,go,d --enable-offload-targets=nvptx-none,amdgcn-amdhsa, --without-cuda-driver --enable-checking=release --disable-werror --with-gxx-include-dir=/usr/include/c++/10 --enable-ssp --disable-libssp --disable-libvtv --enable-cet=auto --disable-libcc1 --enable-plugin --with-bugurl=https://bugs.opensuse.org/ --with-pkgversion='SUSE Linux' --with-slibdir=/lib64 --with-system-zlib --enable-libstdcxx-allocator=new --disable-libstdcxx-pch --enable-libphobos --enable-version-specific-runtime-libs --with-gcc-major-version-only --enable-linker-build-id --enable-linux-futex --enable-gnu-indirect-function --program-suffix=-10 --without-system-libunwind --enable-multilib --with-arch-32=x86-64 --with-tune=generic --with-build-config=bootstrap-lto-lean --enable-link-mutex --build=x86_64-suse-linux --host=x86_64-suse-linux
> Thread model: posix
> Supported LTO compression algorithms: zlib zstd
> gcc version 10.2.1 20201202 [revision e563687cf9d3d1278f45aaebd03e0f66531076c9] (SUSE Linux) 
> 
> 
> Regards,
> Peter
> 
> 
> > >
> > > Thomas
> > > --
> > > Thomas Petazzoni, CTO, Bootlin
> > > Embedded Linux and Kernel engineering
> > > https://bootlin.com    
> > Best Regards,
> > 
> > Fabrice
> > _______________________________________________
> > buildroot mailing list
> > buildroot at busybox.net
> > http://lists.busybox.net/mailman/listinfo/buildroot  
> 
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