| commit | f689befde664f917510e842660a69961faf8ba7b | |
| author | Ilya Leoshkevich <iii@linux.ibm.com> | |
| Fri, 16 Apr 2021 15:49:38 +0000 (16 17:49 +0200) | ||
| committer | Cornelia Huck <cohuck@redhat.com> | |
| Thu, 20 May 2021 12:19:30 +0000 (20 14:19 +0200) | ||
| tree | 071f6b1e6ae26dd6b756bf7c4ba7e95576d6564c | treesnapshot (tar.gz zip) |
| parent | 48a130923c59b706e7f33527490028eb8a86b97e | commitdiff |
target/xtensa: Make sure that tb->size != 0
tb_gen_code() assumes that tb->size must never be zero, otherwise it
may produce spurious exceptions. For xtensa this may happen when
decoding an unknown instruction, when handling a write into the
CCOUNT or CCOMPARE special register and when single-stepping the first
instruction of an exception handler.
Fix by pretending that the size of the respective translation block is
1 in all these cases.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20210416154939.32404-4-iii@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
tb_gen_code() assumes that tb->size must never be zero, otherwise it
may produce spurious exceptions. For xtensa this may happen when
decoding an unknown instruction, when handling a write into the
CCOUNT or CCOMPARE special register and when single-stepping the first
instruction of an exception handler.
Fix by pretending that the size of the respective translation block is
1 in all these cases.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20210416154939.32404-4-iii@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
| target/xtensa/translate.c | diffblobblamehistory |