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Re: HTIF tohost symbol size check always fails

From: Peer Adelt
Subject: Re: HTIF tohost symbol size check always fails
Date: Fri, 16 Oct 2020 23:35:37 +0200

The solution was even easier: I forgot to load the proxy kernel. As soon as I 
replaced the command-line parameter "-kernel <ELF>" with "-kernel <PK> -append 
<ELF>", everything was working as expected. 

Without your hint about my possibly misconfigured toolchain I would have 
probably continued to search for the error in the QEMU HTIF device. But in fact 
it was due to the wrong binary.

Thanks a lot! :-)

> On 16. Oct 2020, at 20:03, Alistair Francis <alistair23@gmail.com> wrote:
> On Fri, Oct 16, 2020 at 7:59 AM Peer Adelt <adelt@hni.upb.de> wrote:
>> Hi,
>> I have a problem with the RISC-V HTIF device.
>> Every binary I have compiled for Spike on riscv32 fails with the following 
>> error message: "HTIF tohost must be 8 bytes"
>> This happens regardless of which program I have translated for Spike. This 
>> is also the case with the official riscv-compliance tests, for example.
>> The query "if (st_size != 8)" in the HTIF device always fails, because 
>> st_size seems to be always 0.
>> To be able to reproduce it:
>> - QEMU GIT Hash: d0ed6a69d399ae193959225cdeaa9382746c91cc (tag "v5.1.0")
> I just checked with this hash and with the current master and on both
> I can run a ELF executable on the Spike machine for RV32.
>> - System: Mac OS 10.14.6 (Darwin Kernel Version 18.7.0)
>> - Compiler: Latest SiFive Build for GCC under OSX
> Maybe try using an official toolchain instead of a vendor fork.
> Alistair
>> - Command: qemu-system-riscv32 -M spike -nographic -bios none -kernel 
>> Best regards,
>> Peer Adelt

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