From: Ilya Leoshkevich <iii@linux.ibm.com>
To: Richard Henderson <richard.henderson@linaro.org>,
David Hildenbrand <david@redhat.com>,
Laurent Vivier <laurent@vivier.eu>,
Cornelia Huck <cohuck@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
qemu-s390x@nongnu.org, qemu-devel@nongnu.org,
Ilya Leoshkevich <iii@linux.ibm.com>,
Andreas Krebbel <krebbel@linux.ibm.com>
Subject: [PATCH v3 0/2] target/s390x: Fix SIGILL psw.addr reporting
Date: Wed, 2 Jun 2021 02:22:08 +0200 [thread overview]
Message-ID: <20210602002210.3144559-1-iii@linux.ibm.com> (raw)
qemu-s390x puts a wrong value into SIGILL's siginfo_t's psw.addr: it
should be a pointer to the instruction following the illegal
instruction, but at the moment it is a pointer to the illegal
instruction itself. This breaks OpenJDK, which relies on this value.
Patch 1 fixes the issue, patch 2 adds a test.
v1: https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg06592.html
v1 -> v2: Use a better buglink (Cornelia), simplify the inline asm
magic in the test and add an explanation (David).
v2: https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg06649.html
v2 -> v3: Fix SIGSEGV handling (found when trying to run valgrind under
qemu-user).
Ilya Leoshkevich (2):
target/s390x: Fix SIGILL psw.addr reporting
tests/tcg/s390x: Test SIGILL and SIGSEGV handling
linux-user/s390x/cpu_loop.c | 23 ++++-
target/s390x/excp_helper.c | 71 +++++++-------
target/s390x/internal.h | 1 +
target/s390x/mem_helper.c | 2 +-
tests/tcg/s390x/Makefile.target | 1 +
tests/tcg/s390x/signal.c | 163 ++++++++++++++++++++++++++++++++
6 files changed, 224 insertions(+), 37 deletions(-)
create mode 100644 tests/tcg/s390x/signal.c
--
2.31.1
next reply other threads:[~2021-06-02 0:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-02 0:22 Ilya Leoshkevich [this message]
2021-06-02 0:22 ` [PATCH v3 1/2] target/s390x: Fix SIGILL psw.addr reporting Ilya Leoshkevich
2021-06-02 0:22 ` [PATCH v3 2/2] tests/tcg/s390x: Test SIGILL and SIGSEGV handling Ilya Leoshkevich
2021-06-18 13:47 ` jonathan.albrecht
2021-06-21 11:58 ` Ilya Leoshkevich
2021-06-02 0:27 ` [PATCH v3 0/2] target/s390x: Fix SIGILL psw.addr reporting no-reply
2021-06-10 9:49 ` David Hildenbrand
2021-06-10 9:53 ` Christian Borntraeger
2021-06-21 12:00 ` Ilya Leoshkevich
2021-06-21 13:12 ` jonathan.albrecht
2021-06-21 13:44 ` Ilya Leoshkevich
2021-06-21 14:46 ` jonathan.albrecht
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