kernel/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c, branch linux-4.16.y

selftests: breakpoints: fix compile error on breakpoint_test_arm64

2017-11-15T15:01:43Z

The current mainline breakpoints test for arm64 fails to compile with breakpoint_test_arm64.c: In function ‘set_watchpoint’: breakpoint_test_arm64.c:97:28: error: storage size of ‘dreg_state’ isn’t known struct user_hwdebug_state dreg_state; Adding a direct include for asm/ptrace.h helps it to build, and passes the test on mainline on hikey. Signed-off-by: Sumit Semwal Signed-off-by: Shuah Khan

selftests: breakpoints: breakpoint_test_arm64: convert test to use TAP13

2017-06-30T22:16:17Z

Convert breakpoint_test_arm64 output to TAP13 format. Use ksft_* var arg msg api to include strerror() info. in the output. Change output from child process to use ksft_print_msg() instead of ksft_exit_* to avoid double counting tests and ensure parent process does the test counter incrementing. Signed-off-by: Shuah Khan

kselftest: make callers of ksft_exit_skip() output the reason for skipping

2017-06-16T00:10:29Z

Make the three tests that did use the old ksft_ext_skip() (breakpoints/breakpoint_test_arm64, breakpoints/step_after_suspend_test, and membarrier_test) use the new one, with an output for the reason for skipping all the tests. Signed-off-by: Paul Elder Signed-off-by: Shuah Khan

selftests: arm64: add test for unaligned/inexact watchpoint handling

2016-11-18T17:26:15Z

ARM64 hardware expects 64bit aligned address for watchpoint invocation. However, it provides byte selection method to select any number of consecutive byte set within the range of 1-8. This patch adds support to test all such byte selection option for different memory write sizes. Patch also adds a test for handling the case when the cpu does not report an address which exactly matches one of the regions we have been watching (which is a situation permitted by the spec if an instruction accesses both watched and unwatched regions). The test was failing on a MSM8996pro before this patch series and is passing now. Signed-off-by: Pavel Labath Signed-off-by: Pratyush Anand Signed-off-by: Will Deacon