diff options
Diffstat (limited to 'en/devices/tech/debug/asan.html')
| -rw-r--r-- | en/devices/tech/debug/asan.html | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/en/devices/tech/debug/asan.html b/en/devices/tech/debug/asan.html index 0ab286dc..353aa4bd 100644 --- a/en/devices/tech/debug/asan.html +++ b/en/devices/tech/debug/asan.html @@ -62,7 +62,7 @@ to the build rules. Clang may find bugs in your code that GCC missed.</p> <p>Add <code>LOCAL_SANITIZE:=address</code> to the build rule of the executable.</p> -<pre> +<pre class="devsite-click-to-copy"> LOCAL_SANITIZE:=address </pre> @@ -83,7 +83,7 @@ which are built with ASan, you'll need two copies of the library. The recommended way to do this is to add the following to <code>Android.mk</code> for the module in question:</p> -<pre> +<pre class="devsite-click-to-copy"> LOCAL_SANITIZE:=address LOCAL_MODULE_RELATIVE_PATH := asan </pre> @@ -95,7 +95,7 @@ LOCAL_MODULE_RELATIVE_PATH := asan <p>For system daemons, add the following to the appropriate section of <code>/init.rc</code> or <code>/init.$device$.rc</code>.</p> -<pre> +<pre class="devsite-click-to-copy"> setenv LD_LIBRARY_PATH /system/lib/asan </pre> @@ -111,9 +111,9 @@ sync</code>.</p> when present by reading <code>/proc/$PID/maps</code>. If it's not, you may need to disable SELinux, like so:</p> -<pre> -$ adb root -$ adb shell setenforce 0 +<pre class="devsite-click-to-copy"> +<code class="devsite-terminal">adb root</code> +<code class="devsite-terminal">adb shell setenforce 0</code> # restart the process with adb shell kill $PID # if it is a system service, or may be adb shell stop; adb shell start. </pre> @@ -126,7 +126,7 @@ of Android is built without frame pointers. As a result, you will often get only one or two meaningful frames. To fix this, either rebuild the library with ASan (recommended!), or with:</p> -<pre> +<pre class="devsite-click-to-copy"> LOCAL_CFLAGS:=-fno-omit-frame-pointer LOCAL_ARM_MODE:=arm </pre> @@ -167,7 +167,7 @@ this). Edit the Zygote record in <code>system/core/rootdir/init.zygote(<em>32|64</em>).rc</code> to add the following lines:</p> -<pre> +<pre class="devsite-click-to-copy"> setenv LD_LIBRARY_PATH /system/lib/asan:/system/lib setenv ASAN_OPTIONS allow_user_segv_handler=true @@ -186,10 +186,10 @@ trading some memory overhead for slower application startup.</p> that’s used to run apps under Valgrind. The following example runs the Gmail app under ASan:</p> -<pre> -$ adb root -$ adb shell setenforce 0 # disable SELinux -$ adb shell setprop wrap.com.google.android.gm "asanwrapper" +<pre class="devsite-click-to-copy"> +<code class="devsite-terminal">adb root</code> +<code class="devsite-terminal">adb shell setenforce 0 # disable SELinux</code> +<code class="devsite-terminal">adb shell setprop wrap.com.google.android.gm "asanwrapper"</code> </pre> <p>In this context, asanwrapper rewrites <code>/system/bin/app_process</code> @@ -209,16 +209,16 @@ AddressSanitizer at once.</p> <p>Run the following commands in the same build tree.</p> -<pre> -$ make -j42 -$ SANITIZE_TARGET=address make -j42 +<pre class="devsite-click-to-copy"> +<code class="devsite-terminal">make -j42</code> +<code class="devsite-terminal">SANITIZE_TARGET=address make -j42</code> </pre> <p>In this mode, <code>userdata.img</code> contains extra libraries and must be flashed to the device as well. Use the following command line:</p> -<pre> -$ fastboot flash userdata && fastboot flashall +<pre class="devsite-terminal devsite-click-to-copy"> +fastboot flash userdata && fastboot flashall </pre> <p>At the moment of this writing, modern Nexus and Pixel devices boot to the UI in this mode.</p> |