https://community.nxp.com/t5/i-MX-Processors/why-I-can-t-receive-cpp-log-in-android/m-p/1495960#M193070 <P>my os is imx-automotive-10.0.0_2.2.0$, mx8q, now I want to print some log in cpp file like this:</P><LI-CODE lang="cpp">diff --git a/frameworks/av/media/audioserver/main_audioserver.cpp b/frameworks/av/media/audioserver/main_audioserver.cpp index db5724804a..6ed284e0b4 100644 --- a/frameworks/av/media/audioserver/main_audioserver.cpp +++ b/frameworks/av/media/audioserver/main_audioserver.cpp @@ -13,8 +13,12 @@ * See the License for the specific language governing permissions and * limitations under the License. */ - -#define LOG_TAG "audioserver" +#include &lt;android/log.h&gt; +#define ALOGE(...) __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,## __VA_ARGS__) +#define ALOGI(...) __android_log_print(ANDROID_LOG_INFO,LOG_TAG, ## __VA_ARGS__) +#define ALOGD(...) __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG, ## __VA_ARGS__) +#define LOG_TAG "liwenxiu_audioservice" //#define LOG_NDEBUG 0 #include &lt;fcntl.h&gt; @@ -136,7 +140,10 @@ int main(int argc __unused, char **argv) sp&lt;ProcessState&gt; proc(ProcessState::self()); sp&lt;IServiceManager&gt; sm = defaultServiceManager(); ALOGI("ServiceManager: %p", sm.get()); - AudioFlinger::instantiate(); + + // char * log =(char*) "liwx_tag"; + ALOGI("------------AudioFlinger::instantiate()----------liwenxiu"); + AudioFlinger::instantiate(); AudioPolicyService::instantiate(); // AAudioService should only be used in OC-MR1 and later.</LI-CODE><P>but I get nothing when I using dmesg and logcat to print, someone can tell me why, if must make some .so files ?</P> Wed, 27 Jul 2022 03:04:33 GMT yhm2046 2022-07-27T03:04:33Z https://community.nxp.com/t5/i-MX-Processors/why-I-can-t-receive-cpp-log-in-android/m-p/1495960#M193070 <P>my os is imx-automotive-10.0.0_2.2.0$, mx8q, now I want to print some log in cpp file like this:</P><LI-CODE lang="cpp">diff --git a/frameworks/av/media/audioserver/main_audioserver.cpp b/frameworks/av/media/audioserver/main_audioserver.cpp index db5724804a..6ed284e0b4 100644 --- a/frameworks/av/media/audioserver/main_audioserver.cpp +++ b/frameworks/av/media/audioserver/main_audioserver.cpp @@ -13,8 +13,12 @@ * See the License for the specific language governing permissions and * limitations under the License. */ - -#define LOG_TAG "audioserver" +#include &lt;android/log.h&gt; +#define ALOGE(...) __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,## __VA_ARGS__) +#define ALOGI(...) __android_log_print(ANDROID_LOG_INFO,LOG_TAG, ## __VA_ARGS__) +#define ALOGD(...) __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG, ## __VA_ARGS__) +#define LOG_TAG "liwenxiu_audioservice" //#define LOG_NDEBUG 0 #include &lt;fcntl.h&gt; @@ -136,7 +140,10 @@ int main(int argc __unused, char **argv) sp&lt;ProcessState&gt; proc(ProcessState::self()); sp&lt;IServiceManager&gt; sm = defaultServiceManager(); ALOGI("ServiceManager: %p", sm.get()); - AudioFlinger::instantiate(); + + // char * log =(char*) "liwx_tag"; + ALOGI("------------AudioFlinger::instantiate()----------liwenxiu"); + AudioFlinger::instantiate(); AudioPolicyService::instantiate(); // AAudioService should only be used in OC-MR1 and later.</LI-CODE><P>but I get nothing when I using dmesg and logcat to print, someone can tell me why, if must make some .so files ?</P> Wed, 27 Jul 2022 03:04:33 GMT https://community.nxp.com/t5/i-MX-Processors/why-I-can-t-receive-cpp-log-in-android/m-p/1495960#M193070 yhm2046 2022-07-27T03:04:33Z