Re: [PATCH] RISC-V: Enable static-pie.

[Darius Rad <darius@bluespec.com>]

On Fri, Sep 08, 2023 at 08:30:44PM -0700, Palmer Dabbelt wrote:
> On Fri, 08 Sep 2023 20:17:16 PDT (-0700), yanzhang.wang@intel.com wrote:
> > I took some time to test the master with binfmt_misc and qemu system mode.
> > Both of them can't match the requirements (<= 6 failures).
> > 
> > - most of cases with binfmt_misc fail with abort.
> 
> QEMU user mode isn't a valid test suite target for glibc, there's lots of
> failures due to the emulation.  I know it's confusing that
> riscv-gnu-toolchain uses it, that come up when support was added.
> 
> > - most of cases with qemu system fail with timed out.
> 
> You can set TIMEOUTFACTOR, qemu-system is a lot slower than hardware.
> 
> > And also tested with my risc-v board and still fails 70+ cases and most of
> > them are math accuracy issue.
> 
> Which board are you running on?
> 
> > So Adhemerval, do you know how to setup the environment to reproduce
> > the <= 6 failures ? Maybe I lost some important steps. Thanks very much :).
> 
> +DJ and Darius, who usually report test results.  They've probably got the
> best idea of how to set things up, but I don't remember this requiring
> anything fancy.
> 

Indeed, I don't really do anything unusual, but I do set TIMEOUTFACTOR to
10.  I regularly run on qemu-system (not user) and the Microchip Icicle Kit
board.  I also use scripts/cross-test-ssh.sh for test-wrapper, even when
testing locally (host is localhost), as that simplifies testing the various
ABIs.

// darius