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| author | Alex Bennée <alex.bennee@linaro.org> | 2020-04-03 20:11:43 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2020-04-07 16:19:49 +0100 |
| commit | 1f089c6705fdb0da1b6def842ecf323b07a4460f (patch) | |
| tree | 1f063420899505aa2b6d0f1b37e51bb956ae92c2 /target/xtensa | |
| parent | b859040dc44b271e9ad29f729cac71d2389b05fd (diff) | |
| download | qemu-1f089c6705fdb0da1b6def842ecf323b07a4460f.zip qemu-1f089c6705fdb0da1b6def842ecf323b07a4460f.tar.gz qemu-1f089c6705fdb0da1b6def842ecf323b07a4460f.tar.bz2 | |
target/xtensa: add FIXME for translation memory leak
Dynamically allocating a new structure within the DisasContext can
potentially leak as we can longjmp out of the translation loop (see
test_phys_mem). The proper fix would be to use static allocation
within the DisasContext but as the Xtensa translator imports it's code
from elsewhere I leave that as an exercise for the maintainer.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20200403191150.863-6-alex.bennee@linaro.org>
Diffstat (limited to 'target/xtensa')
| -rw-r--r-- | target/xtensa/translate.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index 8aa972c..37f65b1 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -1174,6 +1174,11 @@ static void xtensa_tr_init_disas_context(DisasContextBase *dcbase, dc->callinc = ((tb_flags & XTENSA_TBFLAG_CALLINC_MASK) >> XTENSA_TBFLAG_CALLINC_SHIFT); + /* + * FIXME: This will leak when a failed instruction load or similar + * event causes us to longjump out of the translation loop and + * hence not clean-up in xtensa_tr_tb_stop + */ if (dc->config->isa) { dc->insnbuf = xtensa_insnbuf_alloc(dc->config->isa); dc->slotbuf = xtensa_insnbuf_alloc(dc->config->isa); |