This highlights an issue when building an app using the Android Gradle Plugin where the app contains RenderScript and native code, and renderscriptNdkModeEnabled is set to true. At runtime, the armeabi-v7a version of this app opens fine, but the arm64-v8a one crashes on launch.
-
Build the app:
$ ./gradlew assembleDebug -
Install a 64-bit version:
$ adb install --abi arm64-v8a app/build/outputs/apk/debug/app-debug.apk -
Open the app
This will result in a stack trace similar to the following:
2019-08-15 00:17:24.094 22281-22281/? E/bcc: Unable to compile the source to file /data/user/0/com.example.renderscriptgradle64/cache/example.o! (Error loading input bitcode)
2019-08-15 00:17:24.107 22224-22260/? E/RenderScript: Child process "/vendor/bin/bcc" terminated with status 256
2019-08-15 00:17:24.108 22224-22260/? E/RenderScript: bcc: FAILS to compile 'example'
2019-08-15 00:17:24.108 22224-22224/? E/rsC++: Internal error: Object id 0.
2019-08-15 00:17:24.108 22224-22260/? A/libc: Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 22260 (rscriptgradle64), pid 22224 (rscriptgradle64)
2019-08-15 00:17:24.146 22285-22285/? I/crash_dump64: obtaining output fd from tombstoned, type: kDebuggerdTombstone
2019-08-15 00:17:24.147 6275-6275/? I//system/bin/tombstoned: received crash request for pid 22260
2019-08-15 00:17:24.147 22285-22285/? I/crash_dump64: performing dump of process 22224 (target tid = 22260)
2019-08-15 00:17:24.153 22285-22285/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: Build fingerprint: 'samsung/starltexx/starlte:9/PPR1.180610.011/G960FXXU6CSG8:user/release-keys'
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: Revision: '26'
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: ABI: 'arm64'
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: pid: 22224, tid: 22260, name: rscriptgradle64 >>> com.example.renderscriptgradle64 <<<
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: Cause: null pointer dereference
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: x0 000000754f299000 x1 0000000000000000 x2 0000000000000000 x3 0000000000000000
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: x4 0000000000000000 x5 0000000000000000 x6 6d64752dff2d6e71 x7 7f7f7f7f7f7f7f7f
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: x8 00000075343db5d8 x9 00000075343fb008 x10 0000000000000000 x11 0101010101010101
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: x12 0000000000000004 x13 ffffffffffffffff x14 ffffffffff000000 x15 ffffffffffffffff
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: x16 00000075343fac78 x17 00000075343d03c8 x18 000000753439999a x19 000000753439ab30
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: x20 000000754f299000 x21 000000000000001c x22 000000753439ab30 x23 000000754f299590
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: x24 0000000000000001 x25 00000000ffffffff x26 0000000000000000 x27 000000753439b588
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: x28 0000000000000008 x29 000000753439ab00
2019-08-15 00:17:24.154 22285-22285/? A/DEBUG: sp 000000753439aae0 lr 00000075343db628 pc 00000075343d03c8
2019-08-15 00:17:24.155 22285-22285/? A/DEBUG: backtrace:
2019-08-15 00:17:24.155 22285-22285/? A/DEBUG: #00 pc 00000000000353c8 /system/lib64/vndk-sp-28/libRS_internal.so (android::renderscript::rsi_ScriptInvokeV(android::renderscript::Context*, void*, unsigned int, void const*, unsigned long))
2019-08-15 00:17:24.155 22285-22285/? A/DEBUG: #01 pc 0000000000040624 /system/lib64/vndk-sp-28/libRS_internal.so (android::renderscript::rsp_ScriptInvokeV(android::renderscript::Context*, void const*, unsigned long)+76)
2019-08-15 00:17:24.155 22285-22285/? A/DEBUG: #02 pc 000000000003b834 /system/lib64/vndk-sp-28/libRS_internal.so (android::renderscript::ThreadIO::playCoreCommands(android::renderscript::Context*, int)+348)
2019-08-15 00:17:24.155 22285-22285/? A/DEBUG: #03 pc 0000000000025ec8 /system/lib64/vndk-sp-28/libRS_internal.so (android::renderscript::Context::threadProc(void*)+2152)
2019-08-15 00:17:24.155 22285-22285/? A/DEBUG: #04 pc 0000000000084df8 /system/lib64/libc.so (__pthread_start(void*)+208)
2019-08-15 00:17:24.155 22285-22285/? A/DEBUG: #05 pc 0000000000023ac4 /system/lib64/libc.so (__start_thread+68)
2019-08-15 00:17:24.428 6275-6275/? E//system/bin/tombstoned: Tombstone written to: /data/tombstones/tombstone_04
2019-08-15 00:17:24.431 6222-6222/? E/audit: type=1701 audit(1565821044.426:8950): auid=4294967295 uid=10316 gid=10316 ses=4294967295 subj=u:r:untrusted_app:s0:c60,c257,c512,c768 pid=22224 comm="rscriptgradle64" exe="/system/bin/app_process64" sig=11
2019-08-15 00:17:24.440 6504-22288/? W/ActivityManager: crash : com.example.renderscriptgradle64,0
2019-08-15 00:17:24.443 6504-22288/? W/ActivityManager: Force finishing activity com.example.renderscriptgradle64/.MainActivity
The bug appears to be caused by the -m32 / -m64 flag not being passed to the compiler: https://android.googlesource.com/platform/tools/base/+/refs/heads/master/build-system/builder/src/main/java/com/android/builder/internal/compiler/RenderScriptProcessor.java#224