[PATCH] D39963: [RISCV] Add initial RISC-V target and driver support

[Petr Hosek via Phabricator via cfe-commits]

phosek added a comment.
Herald added a subscriber: niosHD.

This has broken our toolchain build, the log is here: https://logs.chromium.org/v/?s=fuchsia%2Fbuildbucket%2Fcr-buildbucket.appspot.com%2F8957686819564148864%2F%2B%2Fsteps%2Fcheck_clang%2F0%2Fstdout. The failure is:

  ******************** TEST 'Clang :: Driver/riscv32-toolchain.c' FAILED ********************
  Script:
  --
  /b/s/w/ir/tmp/rt/clangM7g4Ie/llvm_build_dir/tools/clang/stage2-bins/bin/clang /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c -### -no-canonical-prefixes -target riscv32 2>&1 | /b/s/w/ir/tmp/rt/clangM7g4Ie/llvm_build_dir/tools/clang/stage2-bins/bin/FileCheck -check-prefix=CC1 /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c
  /b/s/w/ir/tmp/rt/clangM7g4Ie/llvm_build_dir/tools/clang/stage2-bins/bin/clang /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c -### -no-canonical-prefixes    -target riscv32-linux-unknown-elf    --gcc-toolchain=/b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/Inputs/multilib_riscv_linux_sdk    --sysroot=/b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/Inputs/multilib_riscv_linux_sdk/sysroot 2>&1    | /b/s/w/ir/tmp/rt/clangM7g4Ie/llvm_build_dir/tools/clang/stage2-bins/bin/FileCheck -check-prefix=CC1-RV32-LINUX-ILP32 /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c
  /b/s/w/ir/tmp/rt/clangM7g4Ie/llvm_build_dir/tools/clang/stage2-bins/bin/clang /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c -### -no-canonical-prefixes    -target riscv32-linux-unknown-elf -march=rv32imafd -mabi=ilp32d    --gcc-toolchain=/b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/Inputs/multilib_riscv_linux_sdk    --sysroot=/b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/Inputs/multilib_riscv_linux_sdk/sysroot 2>&1    | /b/s/w/ir/tmp/rt/clangM7g4Ie/llvm_build_dir/tools/clang/stage2-bins/bin/FileCheck -check-prefix=CC1-RV32-LINUX-ILP32D /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c
  /b/s/w/ir/tmp/rt/clangM7g4Ie/llvm_build_dir/tools/clang/stage2-bins/bin/clang -target riscv32 /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c -emit-llvm -S -o - | /b/s/w/ir/tmp/rt/clangM7g4Ie/llvm_build_dir/tools/clang/stage2-bins/bin/FileCheck /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c
  --
  Exit Code: 1
  Command Output (stderr):
  --
  /b/s/w/ir/kitchen-workdir/llvm-project/clang/test/Driver/riscv32-toolchain.c:13:26: error: expected string not found in input
  // CC1-RV32-LINUX-ILP32: "{{.*}}/Inputs/multilib_riscv_linux_sdk/lib/gcc/riscv64-unknown-linux-gnu/7.2.0/../../../../riscv64-unknown-linux-gnu/bin{{/|\\\\}}ld"
                           ^
  <stdin>:1:1: note: scanning from here
  Fuchsia clang version 7.0.0 (https://fuchsia.googlesource.com/a/third_party/clang 6d538af698b9b96bc18bfbe62173dca1c103aaca) (https://fuchsia.googlesource.com/a/third_party/llvm 0b5677cbf87647986caf9fa818adb7f8c355cf1f) (based on LLVM 7.0.0svn)
  ^
  --

I think the problem is that in our toolchain, we configure LLD as the default linker which is why that check is failing.


Repository:
  rC Clang

https://reviews.llvm.org/D39963