From f7e68c9c99ad94f23d3ba3af1642c805b11c71c1 Mon Sep 17 00:00:00 2001 From: Alex Bennée Date: Wed, 21 Jul 2021 00:26:54 +0100 Subject: tcg/plugins: implement a qemu_plugin_user_exit helper MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Mahmoud Mandour Acked-by: Warner Losh Message-Id: <20210720232703.10650-21-alex.bennee@linaro.org> --- linux-user/exit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'linux-user/exit.c') 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(); } -- cgit 1.4.1