RISC-V Toolset on MAC OSX 10.12

[Monir Zaman]

Hello,
I just started installing RISC-V ISA Simulator and the Rocket core generator. As part of it, I have downloaded on my MAC the necessary dependencies from HomeBrew as mentioned in the README.md file (under the riscv-tools) folder. I also installed gcc-5 from homebrew in my /usr/local/bin.

Now I am trying to build the riscv-tools and when I run the command, i get the following error:

mzaman@~/Desktop/Research_Tools/rocket-chip/riscv-tools$ CC=gcc-5 CXX=g++-5 ./build.sh
Starting RISC-V Toolchain build process

Removing existing riscv-fesvr/build directory
Configuring project riscv-fesvr
configure: error: in `/Users/monirzaman/Desktop/Research_Tools/rocket-chip/riscv-tools/riscv-fesvr/build':
configure: error: C compiler cannot create executables
See `config.log' for more details

So i went to check the "config.log" at "~/Desktop/Research_Tools/rocket-chip/riscv-tools/riscv-fesvr/build", and below is the snippet:

## ----------- ##
 55 ## Core tests. ##
 56 ## ----------- ##
 57
 58 configure:1978: checking build system type
 59 configure:1992: result: i386-apple-darwin16.0.0
 60 configure:2012: checking host system type
 61 configure:2025: result: i386-apple-darwin16.0.0
 62 configure:2098: checking for gcc
 63 configure:2125: result: gcc-5
 64 configure:2354: checking for C compiler version
 65 configure:2363: gcc-5 --version >&5
 66 gcc-5 (Homebrew gcc5 5.4.0) 5.4.0
 67 Copyright (C) 2015 Free Software Foundation, Inc.
 68 This is free software; see the source for copying conditions.  There is NO
 69 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 70
 71 configure:2374: $? = 0
 72 configure:2363: gcc-5 -v >&5
 73 Using built-in specs.
 74 COLLECT_GCC=gcc-5
 75 COLLECT_LTO_WRAPPER=/usr/local/Cellar/gcc5/5.4.0/libexec/gcc/x86_64-apple-darwin16.0.0/5.4.0/lto-wrapper
 76 Target: x86_64-apple-darwin16.0.0
 77 Configured with: ../configure --build=x86_64-apple-darwin16.0.0 --prefix=/usr/local/Cellar/gcc5/5.4.0 --libdir=/usr/local/Cellar/gcc5/5.4.0/lib/gcc/5 --enable-languages=c,c++,objc,obj-c++,fortran --program-s    uffix=-5 --with-gmp=/usr/local/opt/gmp --with-mpfr=/usr/local/opt/mpfr --with-mpc=/usr/local/opt/libmpc --with-isl=/usr/local/opt/isl014 --with-system-zlib --enable-libstdcxx-time=yes --enable-stage1-checkin    g --enable-checking=release --enable-lto --disable-werror --with-pkgversion='Homebrew gcc5 5.4.0' --with-bugurl=https://github.com/Homebrew/homebrew-versions/issues --enable-plugin --disable-nls --enable-mul    tilib --with-native-system-header-dir=/usr/include --with-sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk
 78 Thread model: posix
 79 gcc version 5.4.0 (Homebrew gcc5 5.4.0)
 80 configure:2374: $? = 0
 81 configure:2363: gcc-5 -V >&5
 82 gcc-5: error: unrecognized command line option '-V'
 83 gcc-5: fatal error: no input files
 84 compilation terminated.
 85 configure:2374: $? = 1
 86 configure:2363: gcc-5 -qversion >&5
 87 gcc-5: error: unrecognized command line option '-qversion'
 88 gcc-5: fatal error: no input files
 89 compilation terminated.
 90 configure:2374: $? = 1
 91 configure:2394: checking whether the C compiler works
 92 configure:2416: gcc-5    conftest.c  >&5
 93 ld: unexpected token: !tapi-tbd-v2 file '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/lib/libSystem.tbd' for architecture x86_64
 94 collect2: error: ld returned 1 exit status
 95 configure:2420: $? = 1
 96 configure:2458: result: no
 97 configure: failed program was:
| /* confdefs.h */
 99 |#define PACKAGE_NAME "RISC-V Frontend Server"
100 | #define PACKAGE_TARNAME "fesvr"
101 | #define PACKAGE_VERSION "?"
102 | #define PACKAGE_STRING "RISC-V Frontend Server ?"
103 | #define PACKAGE_BUGREPORT "Andrew Waterman"
104 | #define PACKAGE_URL ""
105 | /* end confdefs.h.  */
106 |

I am confused to what might be the problem here. Thanks in advance for your insights.

/monir

[Jamey Hicks]

I am afraid I do not know anything about the problem you are running into. My solution to this kind of problem is to use Linux to run the toolchain because that is pretty thoroughly debugged.

I think it would be great to have a RISC-V toolchain for OS X, but if you're primary goal is to be able to use the toolchain, you might try running the toolchain in a docker container. There is an image available that you can pull, so you could be up and running in minutes.

Docker for Mac:

   https://download.docker.com/mac/stable/Docker.dmg

RISC-V Tools image:

    https://github.com/sbates130272/docker-riscv/blob/master/README.md#getting-started

The instructions in the Readme show how to use docker run -v to enable the container to access the files you want to build/run.

Hope this is helpful,

Jamey

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