diff options
| author | Jonathan Albrecht <jonathan.albrecht@linux.vnet.ibm.com> | 2021-07-09 12:04:58 -0400 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2021-08-03 15:17:38 +0200 |
| commit | ccb5f2708fa02a601833987dacbbc3b47d5b720c (patch) | |
| tree | 13dab4ee0379fc8ad0732f4a8e5f5ac42154fee6 /meson_options.txt | |
| parent | 54ba2161d8c40235d7b486d68ac3803ae0818f43 (diff) | |
linux-user/s390x: signal with SIGFPE on compare-and-trap
Currently when a compare-and-trap instruction is executed, qemu will
always raise a SIGILL signal. On real hardware, a SIGFPE is raised.
Change the PGM_DATA case in cpu_loop to follow the behavior in
linux kernel /arch/s390/kernel/traps.c.
* Only raise SIGILL if DXC == 0
* If DXC matches a non-simulated IEEE exception, raise SIGFPE with
correct si_code
* Raise SIGFPE with si_code == 0 for everything else
When applied on 20210705210434.45824-2-iii@linux.ibm.com, this fixes
crashes in the java jdk such as the linked bug.
Signed-off-by: Jonathan Albrecht <jonathan.albrecht@linux.vnet.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Buglink: https://bugs.launchpad.net/qemu/+bug/1920913
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/319
Message-Id: <20210709160459.4962-2-jonathan.albrecht@linux.vnet.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'meson_options.txt')
0 files changed, 0 insertions, 0 deletions