How to Use AddressSanitizer on Android NDK GCC?

Question

I want use AddressSanitizer to check memory problems in Android Native C++ Code compile with GCC 4.9.

so, I set

SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}  -g1 -fsanitize=address -fno-omit-frame-pointer")
SET (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g1 -fsanitize=address -fno-omit-frame-pointer")
SET (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fsanitize=address -static-libasan")

in my CMakeLists.txt file.

but I got an error:

ld.exe: error: cannot find -lasan",i find in NDK directory,i do not find libasan.so

Is NDK GCC different from NDK Clang? in NDK,just Clan Support AddressSanitizer?

"just Clang Support AddressSanitizer?" Yes: "As a first step to building an ASan-instrumented binary, make sure that your code builds with Clang". GCC has been deprecated in the NDK for a while anyway, and was removed altogether in NDK r18. — Michael
– Michael, Commented Oct 23, 2018 at 8:25

Dan Albert · Accepted Answer · 2018-10-23 15:55:23Z

3

You can't use ASAN with GCC in the NDK. Those libraries were never shipped. ASAN is supported with Clang, and GCC is not supported at all in current NDKs.

Is NDK GCC different from NDK Clang?

In the same way that non-NDK GCC is different from non-NDK Clang, yes. They're different compilers.

answered Oct 23, 2018 at 15:55

Dan Albert

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2 Comments

L.Sman Over a year ago

i get NDK GCC 4.9 source code android.googlesource.com/toolchain/gcc/+/ndk-r16/gcc-4.9 , there has libsanitizer source code .so,if i comple libsanitizer by myself ,can i get a lasan.so used to support ASAN to NDK GCC?

Dan Albert Over a year ago

Maybe, but why bother?

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