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[Qemu-devel] [PATCH] libqtest: dump child invocation when QTEST_LOG set
From: |
Alex Bennée |
Subject: |
[Qemu-devel] [PATCH] libqtest: dump child invocation when QTEST_LOG set |
Date: |
Wed, 4 May 2016 11:59:22 +0100 |
The QTEST_LOG environment is used for debugging qtest interactions with
a child process. When it is defined we now also dump the invocation line
to stderr to make it easier for people to see how QEMU was invoked.
Signed-off-by: Alex Bennée <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
---
tests/libqtest.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/tests/libqtest.c b/tests/libqtest.c
index b12a9e4..dd94abf 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -171,6 +171,7 @@ QTestState *qtest_init(const char *extra_args)
s->qemu_pid = fork();
if (s->qemu_pid == 0) {
+ bool qtest_log = getenv("QTEST_LOG");
setenv("QEMU_AUDIO_DRV", "none", true);
command = g_strdup_printf("exec %s "
"-qtest unix:%s,nowait "
@@ -179,9 +180,12 @@ QTestState *qtest_init(const char *extra_args)
"-machine accel=qtest "
"-display none "
"%s", qemu_binary, socket_path,
- getenv("QTEST_LOG") ? "/dev/fd/2" :
"/dev/null",
+ qtest_log ? "/dev/fd/2" : "/dev/null",
qmp_socket_path,
extra_args ?: "");
+ if (qtest_log) {
+ fprintf(stderr, "%s\n", command);
+ }
execlp("/bin/sh", "sh", "-c", command, NULL);
exit(1);
}
--
2.7.4
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