在 2015年4月16日星期四 UTC+8下午10:58:03，Evgeniy Stepanov写道： > > On Sat, Apr 11, 2015 at 12:31 AM, chunhuili chunhuili > <[email protected] <javascript:>> wrote: > > Hi Evgeniy, > > > > arm 32bit platform ASan can work as above description "L 5.1 java > process > > enable ASan can work after disable many inceptor functions", > > Do you mean the messages about failing to setup interceptors for ~15 > functions that pop up on every process start, or did you need to do > something extra to make it work? The former is expected. >
Yes, when enable Asan for java process through "setprop wrap.$PROCESS_NAME", funtion below can't work in myside external\compiler-rt\lib\asan\asan_interceptors.h #if !SANITIZER_WINDOWS //mask for NULL pointer # define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 0 # define ASAN_INTERCEPT__LONGJMP 0 # define ASAN_INTERCEPT_STRDUP 0 # define ASAN_INTERCEPT_INDEX 0 # define ASAN_INTERCEPT_PTHREAD_CREATE 0 # define ASAN_INTERCEPT_MLOCKX 0 # define ASAN_INTERCEPT_FORK 0 #else # define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 0 # define ASAN_INTERCEPT__LONGJMP 0 # define ASAN_INTERCEPT_STRDUP 0 # define ASAN_INTERCEPT_INDEX 0 # define ASAN_INTERCEPT_PTHREAD_CREATE 0 # define ASAN_INTERCEPT_MLOCKX 0 # define ASAN_INTERCEPT_FORK 0 #endif > > > I build with > > Android build system not NDK. But aarch64 bit can't wok > > Yes, aarch64 runtime is not packaged in the NDK. You can build it from > compiler-rt source, and I recall it mostly works, with a few tests > failing, but the core functionality is there. > Do you mean aarch64 on L official release can work? frameworks\base\cmds\app_process\Android.mk show ASan only enable for 32bit app_process, if it can work, how to enable aarch64 app_process ASan, with GCC or clang? Thank you very much! > > > > > For aarch64 platform > > build with NDK r10d clang 3.5, error as below: > > NDK_TOOLCHAIN_VERSION=clang3.5 > > NDK_TOOLCHAIN=arm-linux-androideabi-clang3.5 > > APP_ABI := arm64-v8a > > > > > ndk_build/android-ndk-r10d/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/lib/gcc/aarch64-linux-android/4.9/../../../../aarch64-linux-android/bin/ld: > > > > cannot find > > > /ndk_build/android-ndk-r10d/toolchains/llvm-3.5/prebuilt/linux-x86_64/bin/../lib/clang/3.5/lib/linux/ > libclang_rt.asan-aarch64-android.so: > > No such file or directory > > clang++: error: linker command failed with exit code 1 (use -v to see > > invocation) > > make: *** [obj/local/arm64-v8a/asan_debug] Error 1 > > > > build with NDK r10d gcc 4.9 error as below > > NDK_TOOLCHAIN_VERSION=4.9 > > NDK_TOOLCHAIN=aarch64-linux-android-4.9 > > APP_ABI := arm64-v8a > > > /ndk_build/android-ndk-r10d/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/aarch64-linux-android/4.9/../../../../aarch64-linux-android/bin/ld: > > > > cannot find libasan_preinit.o: No such file or directory > > > /ndk_build/android-ndk-r10d/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/aarch64-linux-android/4.9/../../../../aarch64-linux-android/bin/ld: > > > > cannot find -lasan > > collect2: error: ld returned 1 exit status > > > > build with Android build system add gcc flag -fsanitize=address, it > can't > > detect use after free, and /proc/pid/maps no asan libs. > > > > the following link show NDK r10d not support 64-bit ABIs > > https://code.google.com/p/address-sanitizer/wiki/Android > > AddressSanitizer in NDK r10d does not support 64-bit ABIs, and > compilation > > with APP_ABI := all will fail. > > > > There is a topic discuss aarch64 ASan porting which prefer GCC with ASan > > > https://groups.google.com/forum/#!searchin/address-sanitizer/aarch64/address-sanitizer/YzYRJEvVimw/t0JVN9pF_j4J > > > > > Thanks a lot for your kindly support. > > > > > > 在 2015年3月31日星期二 UTC+8下午9:34:08，Evgeniy Stepanov写道： > >> > >> Hi, > >> > >> is it still an issue for you? > >> Please provide more info about the failure mode. ASan is supposed to > >> work on the current AOSP master branch with Clang toolchain in the > >> latest NDK, as described in > >> https://code.google.com/p/address-sanitizer/wiki/Android. > >> > >> This comment looks up-to-date: > >> https://code.google.com/p/address-sanitizer/issues/detail?id=326#c2 > >> > >> > 1. Conflict with libsigchain on Android 5.0, which also intercepts > >> > sigaction; On Android L 5.1, libsigchain.so no LD_PRELOAD > >> > > >> > 2. Missing libcorkscrew.so. We need a different way to unwind from a > >> > signal > >> > handler > >> > >> Yes, libcorkscrew.so is gone, but it is no longer needed. > >> > >> > > >> > For this problem, we have porting corkscrew unwind lib for providing > >> > related > >> > backtrace API > >> > > >> > 3. many intercept function SIGSEGV, strcmp/memchr etc > >> > >> Please provide logs, error messages, etc. > >> > >> > >> On Mon, Mar 16, 2015 at 2:33 PM, chunhuili chunhuili > >> <[email protected]> wrote: > >> > Address sanitizer on L version, we meet some problem as blow, maybe > we > >> > miss > >> > some useful information for this feature, could you please show us > the > >> > useful user guide for L ASan? > >> > > >> > For 32bit process enable Address sanitizer, Android L 5.0 address > >> > sanitizer > >> > can't work, for L 5.1 java process enable ASan can work after disable > >> > many > >> > inceptor functions,below is part of com.android.browser maps. > >> > > >> > 00040000-03000000 ---p 00000000 00:00 0 > >> > > >> > 03000000-18000000 rw-p 00000000 00:00 0 > >> > > >> > 18941000-275f0000 rw-s 00000000 00:04 19513 > >> > /dev/ashmem/DiscardableMemoryAshmemAllocator (deleted) > >> > > >> > b6ab6000-b6ae7000 r-xp 00000000 b3:11 1231 > >> > /system/lib/libclang_rt.asan_arm_android.so > >> > > >> > b6ae7000-b6ae8000 r--p 00030000 b3:11 1231 > >> > /system/lib/libclang_rt.asan_arm_android.so > >> > > >> > b6ae8000-b6ae9000 rw-p 00031000 b3:11 1231 > >> > /system/lib/libclang_rt.asan_arm_android.so > >> > > >> > b6f6b000-b6f70000 r-xp 00000000 b3:11 226 > >> > /system/bin/asan/app_process > >> > > >> > b6f70000-b6f71000 r--p 00004000 b3:11 226 > >> > /system/bin/asan/app_process > >> > > >> > b6f71000-b6f72000 rw-p 00005000 b3:11 226 > >> > /system/bin/asan/app_process > >> > > >> > > >> > > >> > Google issue about address sanitizer: > >> > https://code.google.com/p/address-sanitizer/issues/detail?id=326 > >> > > >> > main problem: > >> > > >> > 1. Conflict with libsigchain on Android 5.0, which also intercepts > >> > sigaction; On Android L 5.1, libsigchain.so no LD_PRELOAD > >> > > >> > 2. Missing libcorkscrew.so. We need a different way to unwind from a > >> > signal > >> > handler > >> > > >> > For this problem, we have porting corkscrew unwind lib for providing > >> > related > >> > backtrace API > >> > > >> > 3. many intercept function SIGSEGV, strcmp/memchr etc > >> > > >> > > >> > > >> > we also find information which show ASan can't work on L version. > >> > > >> > https://code.google.com/p/address-sanitizer/wiki/Android > >> > > >> > NOTE: ASan is broken on Android L. Use a K* build. This will be fixed > in > >> > one > >> > of the future L updates. > >> > > >> > > >> > > >> > For 64bit process, compiler is GCC 4.9, GCC 4.9 manual show it > support > >> > address sanitizer but when set -fsanitize=address, no instrument for > >> > load/store. > >> > > >> > gcc 4.9.2 user guide: -fsanitize=address > >> > > >> > Enable AddressSanitizer, a fast memory error detector. Memory access > >> > instructions will be instrumented to detect out-of-bounds and > >> > use-after-free > >> > bugs. See http://code.google.com/p/address-sanitizer/ for more > details. > >> > The > >> > run-time behavior can be influenced using the ASAN_OPTIONS > environment > >> > variable; see https://code.google.com/p/address-sanitizer/wiki/Flags# > >> > Run-time_flags for a list of supported options > >> > > >> > -- > >> > You received this message because you are subscribed to the Google > >> > Groups > >> > "address-sanitizer" group. > >> > To unsubscribe from this group and stop receiving emails from it, > send > >> > an > >> > email to [email protected]. > >> > For more options, visit https://groups.google.com/d/optout. > > > > -- > > You received this message because you are subscribed to the Google > Groups > > "address-sanitizer" group. > > To unsubscribe from this group and stop receiving emails from it, send > an > > email to [email protected] <javascript:>. > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "address-sanitizer" group. 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