Toolchain for ARM 32 bit fails on android host with exit code 159

[4ntoine]

When compiled for ARM 32bit CT_HOST=arm-linux-gnueabihf archiever fails to put .o files into .a with return code 159. If not archiving .o into .a and pass to linker linker fails to link with the same return code.

I will provide the details later.
Is it a known issue?

100% the same command-lines that use toolchain compiled for arm64 (CT_HOST=aarch64-linux-gnu) works just fine.

[jcmvbkbc]

I know that there's been a user who ran the toolchain on armhf host, they've reported a real issue in the compiler, but after it was fixed they were happy, so presumably it worked for them. I guess it doesn't happen with arbitrary .o files? I'll try to reproduce it anyway.

I will provide the details later.

That would be helpful, thank you. Please provide the version of ct-ng and configuration used to build the toolchan as well as the toolchain invocation commands that lead to the crash.

[4ntoine]

Here is how the extensa toolchain is built.

Common

git clone https://github.com/jcmvbkbc/crosstool-NG.git
cd crosstool-NG.git
git checkout xtensa-1.24.x
./bootstrap
./configure --prefix=./installed
make
make install
cd ./installed/bin

ARM64 (works fine)

sudo apt install g++-aarch64-linux-gnu
sudo apt install gcc-aarch64-linux-gnu

mkdir overlays
download https://github.com/jcmvbkbc/crosstool-NG/blob/xtensa-1.22.x/overlays/xtensa_lx106.tar to overlays (and extract).
./ct-ng list-samples
./ct-ng aarch64-linux-gnu,xtensa-lx106-elf
./ct-ng build.4

Grab the files from ~/x-tools/HOST-aarch64-linux-gnu

ARM32 (bad instructions)

sudo apt install gcc-arm-linux-gnueabihf
sudo apt install g++-arm-linux-gnueabihf

edit .config and set CT_HOST=arm-linux-gnueabihf
./ct-ng build.4

Grab the files from ~/x-tools/HOST-arm-linux-gnueabihf.

The files

Compiled toolchain for ARM, SDK distrib (including compiled toolchain), screenshot and build .b files for xtensa in:
https://dropmefiles.com/SFH4q
Note README for the explanation.

Compilation log (how to reproduce):
https://dropmefiles.com/2nSaW

bin/xtensa-lx106-elf-ar cru /data/data/../coreBuild/core.a /data/data/../coreBuild/cont.S.o
xtensa-lx106-elf-ar returned 159

[4ntoine]

@jcmvbkbc Let me know if you need anything else to repro. Meanwhile i'll try to refine it to have minimum reproducible example

[4ntoine]

Yup, just compile any .cpp to .o and archieve it to .a and it fails with return code 159:
https://dropmefiles.com/uShD4

[4ntoine]

@jcmvbkbc Is there anything i can assist you with? Probably try with/without some arguments, compare with file compiled with ARM64 version of toolchain, anything?

[jcmvbkbc]

I don't have easy access to old ARM hardware, I tried your instructions in qemu linux-user, it worked for me. Looking through the emulated instructions trace I've noticed that the following VFP/NEON instructions were used:

vand
vceq.i8
vdup.8
vld1.8
vldr
vmov
vmov.32
vmov.f32
vpadd.i8
vpop
vpush
vst1.8
vstmia
vstr

@4ntoine does you hardware support these instructions? Do you have any way to check whether ar crash on your hardware happens on one of these instructions? Maybe run your reproducer in the debugger or under strace -i and check disassembly at the crash address?

[jcmvbkbc]

xtensa-lx106-elf-ar returned 159

OTOH this seems to correspond to termination by SIGSYS. In any case running reproducer on hardware under strace -i should shed some light. Here's what I see in emulation:

QEMU_STRACE= xtensa-lx106-elf-ar cru z.a BearSSLHelpers.cpp.o
5698 brk(NULL) = 0x00108000
5698 brk(0x00108d0c) = 0x00108d0c
5698 uname(0xfffef208) = 0
5698 readlink("/proc/self/exe",0xfffee350,4096) = 147
5698 brk(0x00129d0c) = 0x00129d0c
5698 brk(0x0012a000) = 0x0012a000
5698 openat(AT_FDCWD,"/usr/lib/locale/locale-archive",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
5698 fstat64(3,0x001067d0) = 0
5698 mmap2(NULL,2097152,PROT_READ,MAP_PRIVATE,3,0) = 0xff5ef000
5698 mmap2(NULL,2596864,PROT_READ,MAP_PRIVATE,3,0x6b) = 0xff375000
5698 close(3) = 0
5698 openat(AT_FDCWD,"/usr/lib/arm-linux-gnueabihf/gconv/gconv-modules.cache",O_RDONLY) = -1 errno=2 (No such file or directory)
5698 openat(AT_FDCWD,"/usr/lib/arm-linux-gnueabihf/gconv/gconv-modules",O_RDONLY|O_CLOEXEC) = -1 errno=2 (No such file or directory)
5698 stat64("z.a",0xfffef218) = -1 errno=2 (No such file or directory)
5698 prlimit64(0,7,0,-69256,1091000,734348) = 0
5698 stat64("z.a",0xfffef190) = -1 errno=2 (No such file or directory)
5698 openat(AT_FDCWD,"z.a",O_RDWR|O_CREAT|O_LARGEFILE|O_TRUNC,0666) = 3
5698 fcntl64(3,F_GETFD) = 0
5698 fcntl64(3,F_SETFD,1) = 0
5698 fstat64(3,0xfffed098) = 0
5698 write(3,0x10c670,8) = 8
5698 close(3) = 0
5698 openat(AT_FDCWD,"z.a",O_RDONLY|O_LARGEFILE) = 3
5698 fcntl64(3,F_GETFD) = 0
5698 fcntl64(3,F_SETFD,1) = 0
5698 fstat64(3,0xfffef000) = 0
5698 read(3,0x10c6d8,4096) = 8
5698 read(3,0x10c6d8,4096) = 0
5698 openat(AT_FDCWD,"BearSSLHelpers.cpp.o",O_RDONLY|O_LARGEFILE) = 4
5698 fcntl64(4,F_GETFD) = 0
5698 fcntl64(4,F_SETFD,1) = 0
5698 gettimeofday(-69160,0,263565312,263565312,0,28) = 0
5698 getpid() = 5698
5698 openat(AT_FDCWD,"stp3bMzo",O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE,0600) = 5
5698 close(5) = 0
5698 stat64("stp3bMzo",0xfffef1f8) = 0
5698 openat(AT_FDCWD,"stp3bMzo",O_RDWR|O_CREAT|O_LARGEFILE|O_TRUNC,0666) = 5
5698 fcntl64(5,F_GETFD) = 0
5698 fcntl64(5,F_SETFD,1) = 0
5698 stat64("BearSSLHelpers.cpp.o",0xfffed248) = 0
5698 lstat64("/home",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica/bug-triage",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica/bug-triage/20210121-ct-ng-armhf-ar",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica/bug-triage/20210121-ct-ng-armhf-ar/crosstool-NG",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica/bug-triage/20210121-ct-ng-armhf-ar/crosstool-NG/build",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica/bug-triage/20210121-ct-ng-armhf-ar/crosstool-NG/build/HOST-arm-linux-gnueabihf",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica/bug-triage/20210121-ct-ng-armhf-ar/crosstool-NG/build/HOST-arm-linux-gnueabihf/xtensa-lx106-elf",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica/bug-triage/20210121-ct-ng-armhf-ar/crosstool-NG/build/HOST-arm-linux-gnueabihf/xtensa-lx106-elf/bin",0xfffebf90) = 0
5698 lstat64("/home/jcmvbkbc/ws/tensilica/bug-triage/20210121-ct-ng-armhf-ar/crosstool-NG/build/HOST-arm-linux-gnueabihf/xtensa-lx106-elf/bin/xtensa-lx106-elf-ar",0xfffebf90) = 0
5698 openat(AT_FDCWD,"/home/jcmvbkbc/ws/tensilica/bug-triage/20210121-ct-ng-armhf-ar/crosstool-NG/build/HOST-arm-linux-gnueabihf/xtensa-lx106-elf/bin/../bin/../lib/bfd-plugins",O_RDONLY|O_DIRECTORY|O_LARGEFILE|O_NONBLOCK|O_CLOEXEC) = -1 errno=2 (No such file or directory)
5698 fstat64(4,0xfffecf40) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,425984,0xfffecf50,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 fstat64(4,0xfffecff8) = 0
5698 _llseek(4,0,434176,0xfffecf50,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 2628
5698 _llseek(4,0,425984,0xfffecf50,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 read(4,0x1120f8,4096) = 2628
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecff8) = 0
5698 fstat64(4,0xfffecfa8) = 0
5698 _llseek(4,0,417792,0xfffecee8,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 read(4,0x116b2c,4096) = 4096
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,0,0xfffecea0,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,258048,0xfffece58,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 fstat64(4,0xfffecf10) = 0
5698 _llseek(4,0,262144,0xfffece50,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,258048,0xfffece58,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,262144,0xfffece58,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,266240,0xfffece58,SEEK_SET) = 0
5698 brk(0x0014b000) = 0x0014b000
5698 _llseek(4,0,4096,0xfffece10,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,8192,0xfffece10,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,110592,0xfffece10,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,114688,0xfffece10,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,135168,0xfffece10,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,139264,0xfffece10,SEEK_SET) = 0
5698 _llseek(4,0,139264,0xfffece10,SEEK_SET) = 0
5698 _llseek(4,0,155648,0xfffece10,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 _llseek(4,0,249856,0xfffece28,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 fstat64(5,0xfffed100) = 0
5698 _llseek(4,0,253952,0xfffecfd0,SEEK_SET) = 0
5698 read(4,0x1120f8,4096) = 4096
5698 read(4,0x133754,4096) = 4096
5698 read(4,0x1120f8,4096) = 4096
5698 gettimeofday(-77532,0,0,263565312,1031064,0) = 0
5698 _llseek(4,0,0,0xfffed0e8,SEEK_SET) = 0
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0xfffed248,8192) = 8192
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0xfffed5da,4096) = 4096
5698 read(4,0x1120f8,4096) = 2628
5698 write(5,0x12c218,4096) = 4096
5698 write(5,0x12c218,1714) = 1714
5698 close(5) = 0
5698 brk(0x00134000) = 0x00134000
5698 close(3) = 0
5698 lstat64("z.a",0xfffef1f8) = 0
5698 rename("stp3bMzo","z.a") = 0
5698 chmod("z.a",0644) = 0
5698 chown32(1112336,1000,1000,1,0,1112336) = 0
5698 chmod("z.a",0644) = 0
5698 exit_group(0)

[4ntoine]

@jcmvbkbc Thanks for looking into it.

it worked for me

jic i've tried on 2 arm32 devices and both did not work (different CPUs) - Redmi 7a and Huawei Honor 9s. BTW i have a couple of really old devices, i can double check..

does you hardware support these instructions? Do you have any way to check whether ar crash on your hardware happens on one of these instructions?

At the moment i have only Honor 9s device, can you find the specs?

I'm afraid strace requires root access and my device is not rooted.

I will try to get the stacktrace. BTW i can see the binaries are stripped (in ~/x-tools/..). Any chance to get them unstripped (probably from ct-ng build dir)? Will it help if you check ARM64 sys calls and compare them (i can provide distrib similar to what i've already uploaded for arm32)?

[jcmvbkbc]

At the moment i have one 32bit cpu device for the testing - it's Huawei Honor 9s device, can you find the specs?

We can approach it from the other side: could you use arm-linux-gnueabi host triplet and see if the toolchain built with it works?

[4ntoine]

At the moment i have one 32bit cpu device for the testing - it's Huawei Honor 9s device, can you find the specs?

We can approach it from the other side: could you use arm-linux-gnueabi host triplet and see if the toolchain built with it works?

Yup, will do that and return back to you soon. Upd: nope, it will take few hours..

[jcmvbkbc]

I'm afraid strace requires root access and my device is not rooted.

Can you try running ulimit -c unlimited before running ar, collect the core dump and load it together with ar into cross gdb (arm-linux-gnueabihf-gdb -c core xtensa-lx106-elf-ar)?

[jcmvbkbc]

At the moment i have only Honor 9s device, can you find the specs?

What I find says that's based on ARM cortex-a53, which is 64-bit ARMv8. Is there a reason to tun 32-bit code on it?
Could you also check /proc/cpuinfo contents on your devices?

[4ntoine]

At the moment i have only Honor 9s device, can you find the specs?

What I find says that's based on ARM cortex-a53, which is 64-bit ARMv8. Is there a reason to tun 32-bit code on it?

Nope, it's detected as 32 bit by Android:
https://stackoverflow.com/questions/65769808/device-is-incorrectly-detected-as-32bit-by-android

It's armv8l, not armv8a. I'm not an expert here but it seems it makes a difference.

Could you also check /proc/cpuinfo contents on your devices?

will do that

ulimit

I believe it's just absent on "regular android device". Doesn't it require root too?

[4ntoine]

adb shell ls -l /proc/cpuinfo
-r--r--r-- 1 root root 0 2021-01-22 23:29 /proc/cpuinfo

can't access it without rooting