For details about LTP see README.ltp and http://ltp.sourceforge.net/ For details about ARC processors see http://www.synopsys.com/dw/ipdir.php?ds=arc_770d

Not all tests from LTP suite are applicable to ARC Linux which is an embedded system based on uClibc and BusyBox. So some of the tests need to be disabled in order for LTP to build and run succesfully.

git clone git://github.com/anthony-kolesov/arc_ltp.git
cd arc_ltp
make autotools
./configure --host=arc-linux-uclibc CC=arc-linux-uclibc-gcc --enable-arc-support CFLAGS="-Dlinux -DUCLINUX"
make
sudo make install

If you want to make out-of-tree then consult INSTALL for details and possible issues.

[ARCLinux] $ cd arc_ltp
[ARCLinux] $ ./runltp

Only runltp configuration is supported. runalltests.sh and runltplite.sh will probably run some tests that may crash or hang target system or take too much time to finish.

These tests cannot be build by ARC Linux uClibc Toolchain (as of version 4.4). To disable all of them at once provide --enable-arc-support flag to ./configure command.

• controllers/cpuset
• security/tomoyo
• kernel/syscalls/clock_nanosleep (also must be disable in ./runtest/syscalls)
• kernel/syscalls/getdents - obscolete syscall, not available on ARC
• kernel/syscalls/sysctl - obscolete syscall, not available on ARC
• kernel/syscalls/ustat - obscolete syscall, not available on ARC.

These tests can be run on ARC Linux but require are different from default parameters because they either take too much time to execute or use values that are too big for an embedded system.

• math/float_bessel - with default parameters take too much time to finish
• math/float_exp_log - with default parameters take too much time to finish
• math/float_iperb - with default parameters take too much time to finish
• math/float_power - with default parameters take too much time to finish
• math/float_trigo - with default parameters take too much time to finish
• syscalls/fork13 - change value of -i from 1000000 to 10000 so it will take bearable amount of time to complete
• sched/hackbench01 - reduce number of iterations to reduce run time. Reduce number of processes because ARC doesn't support more than 4096 processes at one time.
• sched/hackbench02 - ARC Linux has problems if amount of threads in one process is more that 380.

These tests cause system to crash or hung so they must be disabled.

• syscalls/sendfile04 - it is required to find why this tests causes system to hang
• syscalls/sendfile04_64 - it is required to find why this tests causes system to hang.

These tests are not applicable to ARC Linux but are reported as failed, so they should be disabled.

• admin_tools/su01 - requires useradd/userdel commands
• admin_tools/cron02 - requires useradd/userdel commands
• admin_tools/cron_deny01 - requires useradd/userdel commands
• admin_tools/cron_allow01 - requires useradd/userdel commands
• admin_tools/cron_dirs_checks - cron isn't available
• admin_tools/acl_test01 - requires mkfs command. mke2fs can be used instead but then it fails due to lack of useradd
• commands/ar - command is unsupported on ARC Linux
• commands/ld - command is unsupported on ARC Linux
• commands/ldd - command is unsupported on ARC Linux
• commands/nm - command is unsupported on ARC Linux
• commands/objdump - command is unsupported on ARC Linux
• commands/file - command is unsupported on ARC Linux
• commands/tar - test uses file command which is unsupported on ARC Linux
• commands/cron - command is unsupported on ARC Linux
• commands/logrotate - command is unsupported on ARC Linux
• commands/cpio - test uses file command which is unsupported on ARC Linux
• commands/gzip01 - gzip in BusyBox doesn't support option -r
• controllers/cgroup
• controllers/controllers
• fs/rwtest01 - this test requires BASH which isn't available
• fs/rwtest02 - this test requires BASH which isn't available
• fs/rwtest03 - this test requires BASH which isn't available
• fs/rwtest04 - this test requires BASH which isn't available
• fs/rwtest05 - this test requires BASH which isn't available
• fs/iogen01 - this test requires BASH which isn't available
• fs_bind/BindMounts - this test requires BASH which isn't available
• io/aio01 - asynchronous IO isn't supported by uClibc
• io/aio02 - asynchronous IO isn't supported by uClibc
• mm/mtest06_2 - test requires 1 GiB of RAM but board has only 512 MiB
• numa/Numa-testcases - test requires command numactl

• commands/unzip01 - tests expect different output from unzip however it is just different words with same meaning so they cn be safely replaces in test
• fs/fs_racer* - these tests are written for bash which isn't available however they doesn't use syntax unsupported by BusyBox so they run nicely if bash is replaced with sh.
• mm/mmapstress06 - to pass this test requires 512 MiB RAM on board. So either ARC Linux kernel image must be compiled with 512 MiB RAM or ANON_GRAN_PAGES_MAX in test source code must be changed to 16U instead of 32U.
• sched/pth_str02 - this test will fail with current paramter "-n 1000" until STAR 9000579074 will be fixed
• syscalls/acct01 - will fail if BSD process accounting isn't enabled. Test source has been changes so test won't run if it isn't applicable.
• syscalls/epoll_create1_01 - epoll is disabled in ARC Linux by default but can be switched on.
• syscalls/epoll01 - epoll is disabled in ARC Linux by default but can be switched on.
• syscalls/ioctl03 - requires /dev/net/tun device.
• several shell scripts in Open POSIX test suite start with empty line. These need to be removed so bash bang will be on the first line.