Broken --with-xlen=32 --with-arch=I

[cliffordwolf]

The binaries and libraries built with --with-xlen=32 --with-arch=I (git 77f7450, current master) do not seem to match the requested configuration, or each other:

Build script:

git clone https://github.com/riscv/riscv-gnu-toolchain riscv-gnu-toolchain-rv32i
cd riscv-gnu-toolchain-rv32i/
mkdir build; cd build
../configure --with-xlen=32 --with-arch=I --prefix=/opt/riscv32i
make -j$(nproc)

Tests:

$ cat > test.c << EOT
int main() {
  return 0;
}
EOT

$ riscv32-unknown-elf-gcc -c test.c
$ riscv32-unknown-elf-objdump -a test.o
test.o: file format elf64-littleriscv

$ riscv32-unknown-elf-gcc -m32 -c test.c
$ riscv32-unknown-elf-objdump -a test.o
test.o: file format elf32-littleriscv

$ riscv32-unknown-elf-objdump -a /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/crtend.o
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/crtend.o: file format elf64-littleriscv

So far it just looks like the configuration did not "stick". But look it this:

$ riscv32-unknown-elf-gcc test.c
collect2: fatal error: ld terminated with signal 11 [Segmentation fault]
compilation terminated.
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/crt0.o: ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/crt0.o
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/crtbegin.o: ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/crtbegin.o
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /tmp/ccAktjEO.o: ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /tmp/ccAktjEO.o
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/crtend.o: ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/crtend.o
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-atexit.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-atexit.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-exit.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-exit.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-fini.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-fini.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-impure.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-impure.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-init.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-init.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-__atexit.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-__atexit.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-__call_atexit.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-__call_atexit.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libgloss.a(syscalls.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libgloss.a(syscalls.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/libgcc.a(mul.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/libgcc.a(mul.o)
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-errno.o): ABI is incompatible with that of the selected emulation
/opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/bin/ld: failed to merge target specific data of file /opt/riscv32i/lib/gcc/riscv32-unknown-elf/5.2.0/../../../../riscv32-unknown-elf/lib/libc.a(lib_a-errno.o)

[aswaterman]

Commit 572033b should fix this.

[cliffordwolf]

Thanks! I can confirm that the fix works. I have now updated my toolchain build instructions to this git rev.