Hi, I am working with an embedded device whose build system is Yocto and my long term goal is to use the gRPC for an small piece of software that will run on the device.
I am new to the gRPC library and I have played with the CPP examples on my local machine, the second step would be to make the examples running on the board itself , that done I know I can take it from there and start to write my own application. The gRPC sources compile fine if not cross-compiled and not using the Yocto build system, but when cross compiled I am stumbling on that building error. >From what I can see from the building logs the Yocto build seems to compile many more things than the "native" build, for instance the borinssl files are NOT compiled when not cross compiling. Tools' names such as libtoolize and configure.ac are printed out in the build log: | libtoolize: copying file `m4/ltsugar.m4' | | libtoolize: copying file `m4/ltversion.m4' | | libtoolize: copying file `m4/lt~obsolete.m4' | configure.ac:65: installing './ar-lib' | | configure.ac:61: installing './compile' | | configure.ac:46: installing './config.guess' | | configure.ac:46: installing './config.sub' | | configure.ac:48: installing './install-sh' | | configure.ac:48: installing './missing' | | benchmarks/Makefile.am: installing './depcomp' | | parallel-tests: installing './test-driver' .... | | [LD] Linking | /export/arm/pietro/PD15.1/build/tmp-glibc/work/cortexa8t2hf-vfp-neon-phytec-linux-gnueabi/libgrpc/1.0.0-r0/git/libs/opt/libgpr.so.1.0.0-pre1 | | arm-phytec-linux-gnueabi-ld: unrecognized option '-Wl,-O1' | arm-phytec-linux-gnueabi-ld: use the --help option for usage | information So it looks like the build process is very different in the two cases, do you have any idea about how I could narrow down the problem or avoid to compile too many stuff ? I just want to use gRPC C++ and the libprotobuf is already present in the system. It might be the compiler used by Yocto isn't right for gRPC : Looking at the Makefile I can see load of lines using the $(Q) (quiet ?) $(E) (echo ?) Which I have never seen, are they built-in make functions ? Is there a way to tell make to show me the full compiler's output ? "'Nicolas Noble' via grpc.io" <[email protected]> writes: > No, this is correct for building a shared library under Linux. > > Do you really want to build shared libraries? What exactly is the goal > of your cross compilation? > > Most likely, especially if your linker doesn't know about the soname > option, you only need static libraries, so make static should be > enough for you. > > On Mon, Sep 5, 2016, 06:10 Pietro <[email protected]> wrote: > > Hi all, > > I want to cross compile the gRPC library for ARM and I am using > the > Yocto build system. > > The build fails for the following error, which I am suspicious has > something to do with the compiler being used: > > > [LD] Linking > > /export/arm/xxx/PD15.1/build/tmp-glibc/work/cortexa8t2hf-vfp-neon-phytec-linux-gnueabi/libgrpc/1.0.0-r0/git/libs/opt/libgpr.so.1.0.0-pre1 > > > arm-phytec-linux-gnueabi-ld > : unrecognized option ' > -Wl,-soname,libgpr.so.1 > > > arm-phytec-linux-gnueabi-ld > : use the --help option for usage information > > The problem seems to be caused by the following line in the > makefile:2406 > > $(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared > -Wl,-soname,libgpr.so.1 -o > $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION).$(SHARED_EXT) > $(LIBGPR_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) > Shouldn't that line be -soname=libgrp.so ? > > -- > You received this message because you are subscribed to the Google > Groups "grpc.io" group. > To unsubscribe from this group and stop receiving emails from it, > send an email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/grpc-io. > To view this discussion on the web visit > https://groups.google.com/d/msgid/grpc-io/87shte8pkv.fsf%40posteo.net > . > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/grpc-io. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/87eg4x8gxc.fsf%40posteo.net. For more options, visit https://groups.google.com/d/optout.
