From: Sandra Loosemore <sloosemore@baylibre.com>
To: Jeff Law <jeffreyalaw@gmail.com>,
joel@rtems.org, Joseph Myers <josmyers@redhat.com>
Cc: gcc@gcc.gnu.org, binutils@sourceware.org,
gdb-patches@sourceware.org, libc-alpha@sourceware.org,
Chung-Lin Tang <cltang@baylibre.com>,
andrew@reenigne.org, Yao Qi <qiyaoltc@gmail.com>,
Dinh Nguyen <dinguyen@kernel.org>,
qemu-devel@nongnu.org, newlib@sourceware.org,
Arnd Bergmann <arnd@arndb.de>
Subject: Re: Deprecation/removal of nios2 target support
Date: Thu, 18 Apr 2024 11:00:34 -0600 [thread overview]
Message-ID: <442883ff-6900-4a5e-ba4e-f4af50fd6e2d@baylibre.com> (raw)
In-Reply-To: <1fc9fdd9-bbb7-4506-bfe5-b31e9331eb90@gmail.com>
On 4/18/24 10:06, Jeff Law wrote:
>
> ACK. Just one more note to the wider audience. I looked at QEMU's user
> mode support for nios2 on/off over the last couple years. It never
> seemed to work well enough be able to run the GCC testsuite reliably.
I looked at the problems with the nios2 user-mode support in QEMU in
some detail a few years ago. It looked like the problem was that it had
copied the target syscall data structures from GLIBC and wasn't
accounting for 32-bit target/64-bit host differences -- this
particularly affected signal handling. I'm pretty sure we asked Intel
if they wanted this fixed and they were not interested in pursuing that.
The end result is that user-mode QEMU is not very useful for GLIBC or
GDB testing.
> As a result, my tester builds nios2 and will run the testsuite, but all
> the execution tests are only built, they're not actually run. It's been
> fairly stable, but its not doing in-depth testing.
Yes, as I noted in my previous message, there is nothing seriously wrong
with the nios2 GCC port at present; it just seems kind of pointless to
invest time in continuing to maintain it as a hobby when the
architecture is dead. I think legacy customers generally would prefer
to keep using the toolchains previously distributed by Altera/Intel or
Mentor/Siemens instead of trying to build a new bleeding-edge toolchain
from scratch, too.
-Sandra
next prev parent reply other threads:[~2024-04-18 17:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-18 3:27 Sandra Loosemore
2024-04-18 5:53 ` Thomas Huth
2024-04-18 12:49 ` Marek Vasut
2024-04-18 15:44 ` Joseph Myers
2024-04-18 15:57 ` Joel Sherrill
2024-04-18 16:06 ` Jeff Law
2024-04-18 17:00 ` Sandra Loosemore [this message]
2024-04-18 18:41 ` Arnd Bergmann
2024-04-19 3:50 ` Marek Vasut
2024-04-19 12:05 ` Dinh Nguyen
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