Trouble cross-building ./kernel/tools/perf for ARM/Android

[Ryan V. Bissell]

Hi,

The Android Open Source Project (AOSP) includes a copy of the Linux kernel's "Perf" tool, but it is quite old.  Furthermore, as of 3.10, the Linux kernel includes ./tools/perf/Documentation/android.txt, which purports to explain how to cross-build Perf for Android (ARM or x86).

https://android.googlesource.com/kernel/common/+/android-3.10/tools/perf/Documentation/android.txt

However, when following those directions, I get an error about an unfound "bitsperlong.h" file, and I have not been able to suss out the reason.

My steps:

1. Download AOSP
2. Download linux 3.10.17, extract to $HOME/work/aosp/kernel
3. Build AOSP (which won't actually build the above kernel, but this is expected)
4. Generate or supply appropriate .config for kernel, and cross-build kernel with:
make ARCH=arm CROSS_COMPILE=/home/rbissell/work/aosp/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-

5. Follow the instructions "./kernel/tools/perf/Documentation/android.txt", for cross-building Perf for ARM, using a sysroot derived from the AOSP source tree:

$ cd ~/work/aosp
$ source build/envsetup.sh
$ lunch
$ cd ${ANDROID_BUILD_TOP}/ndk
$ ./build/tools/build-ndk-sysroot.sh --abi=arm
$ export NDK_SYSROOT=${ANDROID_BUILD_TOP}/ndk/build/platforms/android-3/arch-arm
$ export NDK_TOOLCHAIN=${ANDROID_TOOLCHAIN}/arm-linux-androideabi-
$ cd ${ANDROID_BUILD_TOP}/kernel/tools/perf
$ make ARCH=arm CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"

The final step above fails with the error message below.   (However, if I just build Perf for the host system (x86_64), it builds fine.)

In file included from /home/rbissell/work/aosp/kernel/arch/arm/include/uapi/asm/posix_types.h:35:0,
                 from /home/rbissell/work/aosp/kernel/include/uapi/linux/posix_types.h:35,
                 from /home/rbissell/work/aosp/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.7/bin/../lib/gcc/arm-linux-androideabi/4.7/include-fixed/sys/types.h:46,
                 from /home/rbissell/work/aosp/ndk/build/platforms/android-3/arch-arm/usr/include/unistd.h:33,
                 from util/util.h:44,
                 from builtin.h:4,
                 from perf.c:9:
/home/rbissell/work/aosp/kernel/include/uapi/asm-generic/posix_types.h:4:29: fatal error: asm/bitsperlong.h: No such file or directory

I am uncertain what is wrong.  There is a "bitsperlong.h" in the kernel tree, but it exists in asm-generic/, not asm/.  Elsewhere on the internet, people suggest copying the file or creating a symbolic link.  Not only does that not feel like a correct solution to this problem-- native build doesn't require doing that-- it actually doesn't work (just leads to further compilation errors.)

I think I must be overlooking something?

</ryan>

[Zhenhua Zhu]

maybe you need sync your kernel source header to android external/kernel-header manually

在 2013年11月13日星期三UTC+8下午10时32分24秒，Ryan V. Bissell写道：

[Hiep Trinh]

Hi,
I also follow this intructions, but after final step:

make ARCH=arm CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"

I received error:
config/Makefile:159: *** No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static.  Stop.
I search and know that gnu/libc-version.h appears in my aosp r/prebuilt/linux-x86/toolchain/i686-linux-glibc2.7-4.4.3/sysroot/usr/include/gnu/libc-version.h
and /usr/include/x86_64-linux-gnu/gnu/libc-version.h
 
What's wrong?





Vào 21:32:24 UTC+7 Thứ tư, ngày 13 tháng mười một năm 2013, Ryan V. Bissell đã viết:

[Kris Smith]

Did you figure out this error? I am running into the same issue trying to compile the linux perf tools for android on OS X.

[Damjan Velickovski]

I have this problem too, have anyone worked this one out?

[Probir Roy]

Did you find the solution of the problem?

On Tuesday, November 26, 2013 2:51:11 AM UTC-5, Hiep Trinh wrote:

[Damjan Velickovski]

Unfortunately no, I needed to do a performance analysis on Nexus 7 (2012) and I went with nVidia Tegra System Profiler which also resisted to be set up correctly but I managed to make it work. If you need any help with it I will gladly help.

Also if you overcome this issue don't forget to post here how you did it.

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