On 27 Aug 2022 01:53, Tsukasa OI wrote:
> The patch is a RESEND of
> <https://sourceware.org/pipermail/binutils/2022-July/121814.html>
> but to the right mailing list and completely new cover letter.

please clean up the patch and send it out standalone -- no need for a cover
letter, and the relevant details should all be in the patch itself.

> 1.  Configure Binutils with aarch64-unknown-elf and build it
>     /src/binutils/configure \
>         --target=aarch64-unknown-elf \
>         --prefix=/opt/cross/aarch64-unknown-elf \
>         --enable-multilib
>     && make
> 2.  Run `make check-sim' and confirmed that the simulator tests "pass"
> 3.  Intentionally try to fail the test by modifying
>     `sim/testsuite/aarch64/pass.s'
>     (replace the last line from "pass" to "fail")
> 4.  Run `make check-sim' and "confirmed" that the simulator tests "pass"

since i don't have the same paths as you, i didn't run the same configure.
but using --target=aarch64-elf and running `make check-sim` with -j1 vs -j4
doesn't show any behavior difference.  all the tests are found & run.  if i
add an error to one of the tests like you did, it fails in both modes.

$ runtest --version
DejaGnu version 1.6.3
Expect version  5.45.4
Tcl version     8.6

> However, this block doesn't work because the `arch' variable returned by
> the `sim_arch' function is "./aarch64".  That is supposed to be "aarch64".

i don't mind fixing sim_arch, but this really should be fixed too.  we
shouldn't be in a situation where "./aarch64" is present as an input.

seems easy enough to do so i pushed a patch for it.
-mike