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| author | Alex Bennée <alex.bennee@linaro.org> | 2021-07-21 00:26:54 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2021-07-23 17:22:16 +0100 |
| commit | f7e68c9c99ad94f23d3ba3af1642c805b11c71c1 (patch) | |
| tree | 0a1141f57b680499f943b37beee3093c6cfa8514 /linux-user/exit.c | |
| parent | 094d278547dcb66ad222047ab9c325c452fe31e3 (diff) | |
| download | qemu-f7e68c9c99ad94f23d3ba3af1642c805b11c71c1.zip | |
tcg/plugins: implement a qemu_plugin_user_exit helper
In user-mode emulation there is a small race between preexit_cleanup
and exit_group() which means we may end up calling instrumented
instructions before the kernel reaps child threads. To solve this we
implement a new helper which ensures the callbacks are flushed along
with any translations before we let the host do it's a thing.
While we are at it make the documentation of
qemu_plugin_register_atexit_cb clearer as to what the user can expect.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Acked-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20210720232703.10650-21-alex.bennee@linaro.org>
Diffstat (limited to 'linux-user/exit.c')
| -rw-r--r-- | linux-user/exit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/linux-user/exit.c b/linux-user/exit.c index 70b344048c..527e29cbc1 100644 --- a/linux-user/exit.c +++ b/linux-user/exit.c @@ -35,5 +35,5 @@ void preexit_cleanup(CPUArchState *env, int code) __gcov_dump(); #endif gdb_exit(code); - qemu_plugin_atexit_cb(); + qemu_plugin_user_exit(); } |