[llvm-dev] How to build lli (LLVM JIT) for RISCV? (original) (raw)
Dogtail L via llvm-dev llvm-dev at lists.llvm.org
Mon Dec 17 17:40:03 PST 2018
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Hi everyone,
I am trying to build a JIT for the RISC-V platform, but I could not figure out how. Could you provide some hints? Great thanks!
Initially, I found that LLVM has RISCV backend, and I compiled it following the instructions here <https://github.com/lowRISC/riscv-llvm>. I got a cross-compiler version of clang (running on x86 and the generated binary runs on RISC-V), but the lli is still a X86 tool.
Then, I tried to build LLVM with riscv-gnu-toolchain <https://github.com/riscv/riscv-gnu-toolchain>, and I got many tools such as llc working on RISC-V properly. However, the lli still could not work properly. When I tried to process the LLVM bytecode file (.ll file) on RISC-V using lli, I got the error:
error creating EE: No available targets are compatible with this
triple.* Furthermore, when I typed: lli -version, I got:
- LLVM version 7.0.0svn DEBUG build with assertions. Default target: x86_64-unknown-linux-gnu Host CPU: (unknown)* But when I typed: llc -version (llc works fine), I got: LLVM version 7.0.0svn DEBUG build with assertions. Default target: x86_64-unknown-linux-gnu Host CPU: (unknown) Registered Targets: riscv32 - 32-bit RISC-V riscv64 - 64-bit RISC-V x86 - 32-bit X86: Pentium-Pro and above x86-64 - 64-bit X86: EM64T and AMD64 It seems that the lli tool does not support RISC-V target.
Could anyone give me some hints? Thank you so much!!
Best, Rui -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20181217/0e66baec/attachment.html>
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