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From: Jonathan Albrecht <jonathan.albrecht@linux.vnet.ibm.com>
To: qemu-devel@nongnu.org
Cc: ruixin.bao@ibm.com,
	Jonathan Albrecht <jonathan.albrecht@linux.vnet.ibm.com>,
	iii@linux.ibm.com, david@redhat.com, cohuck@redhat.com,
	richard.henderson@linaro.org, laurent@vivier.eu,
	borntraeger@de.ibm.com, qemu-s390x@nongnu.org,
	krebbel@linux.ibm.com
Subject: [PATCH v3 0/2] linux-user/s390x: signal with SIGFPE on compare-and-trap
Date: Fri,  9 Jul 2021 12:04:57 -0400	[thread overview]
Message-ID: <20210709160459.4962-1-jonathan.albrecht@linux.vnet.ibm.com> (raw)

qemu-s390x signals with SIGILL on compare-and-trap instructions. This
breaks OpenJDK which expects SIGFPE in its implementation of implicit
exceptions.

This patch depends on [PATCH v6 0/2] target/s390x: Fix SIGILL and SIGFPE
psw.addr reporting
https://lore.kernel.org/qemu-devel/20210705210434.45824-1-iii@linux.ibm.com/

Based-on: 20210705210434.45824-1-iii@linux.ibm.com

v1 -> v2:
- Update to latest version of '... psw.addr reporting' patch
- Rebase to master and fix conflicts in tests/tcg/s390x/Makefile.target

v2 -> v3:
- Check for non-simulated IEEE exception DXC codes explicitly when
  getting si_codes
- Ensure si_code is set in all cases
- Improve comments

Jonathan Albrecht (2):
  linux-user/s390x: signal with SIGFPE on compare-and-trap
  tests/tcg: Test that compare-and-trap raises SIGFPE

 linux-user/s390x/cpu_loop.c     |  54 ++++++++++-------
 tests/tcg/s390x/Makefile.target |   1 +
 tests/tcg/s390x/trap.c          | 102 ++++++++++++++++++++++++++++++++
 3 files changed, 137 insertions(+), 20 deletions(-)
 create mode 100644 tests/tcg/s390x/trap.c

-- 
2.31.1



             reply	other threads:[~2021-07-09 16:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-09 16:04 Jonathan Albrecht [this message]
2021-07-09 16:04 ` [PATCH v3 1/2] linux-user/s390x: signal with SIGFPE on compare-and-trap Jonathan Albrecht
2021-07-09 16:50   ` Richard Henderson
2021-07-09 16:04 ` [PATCH v3 2/2] tests/tcg: Test that compare-and-trap raises SIGFPE Jonathan Albrecht
2021-07-12 20:02 ` [PATCH v3 0/2] linux-user/s390x: signal with SIGFPE on compare-and-trap Laurent Vivier
2021-07-12 21:29   ` jonathan.albrecht
2021-07-13 12:01     ` Laurent Vivier

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