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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, On Tue, Apr 19, 2022 at 12:10:25PM +0100, Vincenzo Frascino wrote: > Hi Joey, > > On 4/14/22 11:46 AM, Joey Gouly wrote: > > Hi all, > > > > This small series enables the orphan-handling linker flag for the VDSO. > > This could catch subtle errors if features that use special sections are > > introduced into the VDSO implementation. > > > > Sorry for the extra version, I forgot to include Kees' and Vincenzo's > > reviewed-by tags. That's the only change to the patches. > > > > The patches look fine. Could you please provide some test results with [1] or [2]? > > [1] https://github.com/nlynch-mentor/vdsotest > [2] /tools/testing/selftests/vDSO Testing with the selftests: $ ./vdso_test_abi TAP version 13 1..16 [vDSO kselftest] VDSO_VERSION: LINUX_2.6.39 # The time is 1650369341.228566 ok 1 vdso_test_gettimeofday(): PASS # clock_id: CLOCK_REALTIME # The time is 1650369341.229413165 ok 2 vdso_test_clock_gettime(): PASS # The vdso resolution is 0 1 # The syscall resolution is 0 1 ok 3 vdso_test_clock_getres(): PASS # clock_id: CLOCK_BOOTTIME # The time is 1524.388896408 ok 4 vdso_test_clock_gettime(): PASS # The vdso resolution is 0 1 # The syscall resolution is 0 1 ok 5 vdso_test_clock_getres(): PASS # clock_id: CLOCK_TAI # The time is 1650369341.231390753 ok 6 vdso_test_clock_gettime(): PASS # The vdso resolution is 0 1 # The syscall resolution is 0 1 ok 7 vdso_test_clock_getres(): PASS # clock_id: CLOCK_REALTIME_COARSE # The time is 1650369341.227127861 ok 8 vdso_test_clock_gettime(): PASS # The vdso resolution is 0 4000000 # The syscall resolution is 0 4000000 ok 9 vdso_test_clock_getres(): PASS # clock_id: CLOCK_MONOTONIC # The time is 1524.391519475 ok 10 vdso_test_clock_gettime(): PASS # The vdso resolution is 0 1 # The syscall resolution is 0 1 ok 11 vdso_test_clock_getres(): PASS # clock_id: CLOCK_MONOTONIC_RAW # The time is 1524.697386720 ok 12 vdso_test_clock_gettime(): PASS # The vdso resolution is 0 1 # The syscall resolution is 0 1 ok 13 vdso_test_clock_getres(): PASS # clock_id: CLOCK_MONOTONIC_COARSE # The time is 1524.389473326 ok 14 vdso_test_clock_gettime(): PASS # The vdso resolution is 0 4000000 # The syscall resolution is 0 4000000 ok 15 vdso_test_clock_getres(): PASS ok 16 # SKIP vdso_test_time(): SKIP: Could not find __kernel_time # Totals: pass:15 fail:0 xfail:0 xpass:0 skip:1 error:0 $ ./vdso_test_correctness Warning: failed to find getcpu in vDSO [RUN] Testing clock_gettime for clock CLOCK_REALTIME (0)... 1650369433.949718175 1650369433.949982211 1650369433.950033907 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_MONOTONIC (1)... 1617.109425232 1617.109431840 1617.109434048 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_PROCESS_CPUTIME_ID (2)... 0.039832960 0.039874448 0.039886448 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_THREAD_CPUTIME_ID (3)... 0.040566320 0.040574576 0.040579552 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_MONOTONIC_RAW (4)... 1617.415046976 1617.415057616 1617.415059712 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_REALTIME_COARSE (5)... 1650369433.948175756 1650369433.948175756 1650369433.948175756 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_MONOTONIC_COARSE (6)... 1617.110521230 1617.110521230 1617.110521230 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_BOOTTIME (7)... 1617.113039789 1617.113044493 1617.113046269 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_REALTIME_ALARM (8)... 1650369433.955192243 1650369433.955196547 1650369433.955199811 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_BOOTTIME_ALARM (9)... 1617.114074714 1617.114079690 1617.114083210 [OK] Test Passed. [RUN] Testing clock_gettime for clock CLOCK_SGI_CYCLE (10)... [OK] No such clock. [RUN] Testing clock_gettime for clock CLOCK_TAI (11)... 1650369433.956495555 1650369433.956498307 1650369433.956500003 [OK] Test Passed. [RUN] Testing clock_gettime for clock invalid (-1)... [OK] No such clock. [RUN] Testing clock_gettime for clock invalid (-2147483648)... [OK] No such clock. [RUN] Testing clock_gettime for clock invalid (2147483647)... [OK] No such clock. [SKIP] No vDSO, so skipping clock_gettime64() tests [RUN] Testing gettimeofday... 1650369433.958323 1650369433.958397 1650369433.958470 [OK] timezones match: minuteswest=0, dsttime=0 [RUN] Testing getcpu... [OK] CPU 0: syscall: cpu 0, node 0 $ ./vdso_test_gettimeofday The time is 1650369462.312523 $ ./vdso_test_clock_getres clock_id: CLOCK_REALTIME [PASS] clock_id: CLOCK_BOOTTIME [PASS] clock_id: CLOCK_TAI [PASS] clock_id: CLOCK_REALTIME_COARSE [PASS] clock_id: CLOCK_MONOTONIC [PASS] clock_id: CLOCK_MONOTONIC_RAW [PASS] clock_id: CLOCK_MONOTONIC_COARSE [PASS] $ ./vdso_test_getcpu Could not find __vdso_getcpu So there was 2 potential issues: - vdso_test_time(): SKIP: Could not find __kernel_time - Could not find __vdso_getcpu I'm not sure what these are, maybe they don't work on arm64 or it's a kernel config issue. Thanks, Joey _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel