- Linux-kselftest-mirror - lists.linaro.org

[PATCH] tools: testing: selftests: Remove duplicate headers

by Souptick Joarder

Remove duplicate headers which are included twice. Signed-off-by: Sabyasachi Gupta <sabyasachi.linux(a)gmail.com> Signed-off-by: Souptick Joarder <jrdr.linux(a)gmail.com> --- tools/testing/selftests/gpio/gpio-mockup-chardev.c | 1 - tools/testing/selftests/net/udpgso.c | 1 - tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c | 1 - tools/testing/selftests/proc/proc-self-syscall.c | 1 - tools/testing/selftests/rseq/rseq.h | 1 - tools/testing/selftests/timers/skew_consistency.c | 1 - tools/testing/selftests/x86/mpx-dig.c | 2 -- 7 files changed, 8 deletions(-) diff --git a/tools/testing/selftests/gpio/gpio-mockup-chardev.c b/tools/testing/selftests/gpio/gpio-mockup-chardev.c index aaa1e9f..d587c81 100644 --- a/tools/testing/selftests/gpio/gpio-mockup-chardev.c +++ b/tools/testing/selftests/gpio/gpio-mockup-chardev.c @@ -12,7 +12,6 @@ #include <unistd.h> #include <stdio.h> #include <stdlib.h> -#include <stdio.h> #include <errno.h> #include <string.h> #include <fcntl.h> diff --git a/tools/testing/selftests/net/udpgso.c b/tools/testing/selftests/net/udpgso.c index e279051..b8265ee 100644 --- a/tools/testing/selftests/net/udpgso.c +++ b/tools/testing/selftests/net/udpgso.c @@ -17,7 +17,6 @@ #include <stdbool.h> #include <stdlib.h> #include <stdio.h> -#include <stdlib.h> #include <string.h> #include <sys/ioctl.h> #include <sys/socket.h> diff --git a/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c b/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c index 167135b..af1b802 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c @@ -11,7 +11,6 @@ #include <sys/wait.h> #include <unistd.h> #include <setjmp.h> -#include <signal.h> #include "ebb.h" diff --git a/tools/testing/selftests/proc/proc-self-syscall.c b/tools/testing/selftests/proc/proc-self-syscall.c index 5ab5f48..3a4fec3 100644 --- a/tools/testing/selftests/proc/proc-self-syscall.c +++ b/tools/testing/selftests/proc/proc-self-syscall.c @@ -20,7 +20,6 @@ #include <sys/stat.h> #include <fcntl.h> #include <errno.h> -#include <unistd.h> #include <string.h> #include <stdio.h> diff --git a/tools/testing/selftests/rseq/rseq.h b/tools/testing/selftests/rseq/rseq.h index c72eb70..6c1126e7 100644 --- a/tools/testing/selftests/rseq/rseq.h +++ b/tools/testing/selftests/rseq/rseq.h @@ -16,7 +16,6 @@ #include <errno.h> #include <stdio.h> #include <stdlib.h> -#include <sched.h> #include <linux/rseq.h> /* diff --git a/tools/testing/selftests/timers/skew_consistency.c b/tools/testing/selftests/timers/skew_consistency.c index 022b711..8066be9 100644 --- a/tools/testing/selftests/timers/skew_consistency.c +++ b/tools/testing/selftests/timers/skew_consistency.c @@ -32,7 +32,6 @@ #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> -#include <stdlib.h> #include <string.h> #include <sys/wait.h> #include "../kselftest.h" diff --git a/tools/testing/selftests/x86/mpx-dig.c b/tools/testing/selftests/x86/mpx-dig.c index c13607e..880fbf6 100644 --- a/tools/testing/selftests/x86/mpx-dig.c +++ b/tools/testing/selftests/x86/mpx-dig.c @@ -8,9 +8,7 @@ #include <unistd.h> #include <stdio.h> #include <errno.h> -#include <sys/types.h> #include <sys/stat.h> -#include <unistd.h> #include <sys/mman.h> #include <string.h> #include <fcntl.h> -- 1.9.1

5 years, 8 months

2
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[PATCH v2] selftest/x86/mpx-dig.c: Remove duplicate header

by Souptick Joarder

From: Sabyasachi Gupta <sabyasachi.linux(a)gmail.com> Remove duplicate header which is included twice. Signed-off-by: Sabyasachi Gupta <sabyasachi.linux(a)gmail.com> Signed-off-by: Souptick Joarder <jrdr.linux(a)gmail.com> --- v2: Corrected format tools/testing/selftests/x86/mpx-dig.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/x86/mpx-dig.c b/tools/testing/selftests/x86/mpx-dig.c index c13607e..880fbf6 100644 --- a/tools/testing/selftests/x86/mpx-dig.c +++ b/tools/testing/selftests/x86/mpx-dig.c @@ -8,9 +8,7 @@ #include <unistd.h> #include <stdio.h> #include <errno.h> -#include <sys/types.h> #include <sys/stat.h> -#include <unistd.h> #include <sys/mman.h> #include <string.h> #include <fcntl.h> -- 1.9.1

5 years, 8 months

1
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next-20190306 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.0.0 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: cf08baa29613dd899954089e7cc7dba1d478b365 git describe: next-20190306 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20190306 Regressions (compared to build next-20190305) ------------------------------------------------------------------------ qemu_arm64: kselftest: * bpf_test_sockmap qemu_x86_64: kselftest: * bpf_test_sockmap Fixes (compared to build next-20190305) ------------------------------------------------------------------------ No fixes In total: ------------------------------------------------------------------------ Ran 351 total tests in the following environments and test suites. pass 257 fail 94 xfail 0 skip 0 Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - i386 - juno-r2 - arm64 - qemu_arm - qemu_arm64 - qemu_i386 - qemu_x86_64 - x15 - arm - x86_64 Test Suites ----------- * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none Failures ------------------------------------------------------------------------ qemu_arm: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user qemu_x86_64: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_progs * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap qemu_i386: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user x15: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user x86: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_progs * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap * kselftest-vsyscall-mode-none/bpf_test_btf * kselftest-vsyscall-mode-none/bpf_test_libbpf.sh * kselftest-vsyscall-mode-none/bpf_test_lirc_mode2_user * kselftest-vsyscall-mode-none/bpf_test_progs * kselftest-vsyscall-mode-none/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-none/bpf_test_sockmap * kselftest-vsyscall-mode-native/bpf_test_btf * kselftest-vsyscall-mode-native/bpf_test_libbpf.sh * kselftest-vsyscall-mode-native/bpf_test_lirc_mode2_user * kselftest-vsyscall-mode-native/bpf_test_progs * kselftest-vsyscall-mode-native/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-native/bpf_test_sockmap qemu_arm64: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap hi6220-hikey: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh juno-r2: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap i386: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user dragonboard-410c: Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 8 months

1
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[PATCH v10 00/12] arm64: untag user pointers passed to the kernel

by Andrey Konovalov

This patchset is meant to be merged together with "arm64 relaxed ABI" [1]. arm64 has a feature called Top Byte Ignore, which allows to embed pointer tags into the top byte of each pointer. Userspace programs (such as HWASan, a memory debugging tool [2]) might use this feature and pass tagged user pointers to the kernel through syscalls or other interfaces. Right now the kernel is already able to handle user faults with tagged pointers, due to these patches: 1. 81cddd65 ("arm64: traps: fix userspace cache maintenance emulation on a tagged pointer") 2. 7dcd9dd8 ("arm64: hw_breakpoint: fix watchpoint matching for tagged pointers") 3. 276e9327 ("arm64: entry: improve data abort handling of tagged pointers") This patchset extends tagged pointer support to syscall arguments. For non-memory syscalls this is done by untaging user pointers when the kernel performs pointer checking to find out whether the pointer comes from userspace (most notably in access_ok). The untagging is done only when the pointer is being checked, the tag is preserved as the pointer makes its way through the kernel. Since memory syscalls (mmap, mprotect, etc.) don't do memory accesses but rather deal with memory ranges, untagged pointers are better suited to describe memory ranges internally. Thus for memory syscalls we untag pointers completely when they enter the kernel. One of the alternative approaches to untagging that was considered is to completely strip the pointer tag as the pointer enters the kernel with some kind of a syscall wrapper, but that won't work with the countless number of different ioctl calls. With this approach we would need a custom wrapper for each ioctl variation, which doesn't seem practical. The following testing approaches has been taken to find potential issues with user pointer untagging: 1. Static testing (with sparse [3] and separately with a custom static analyzer based on Clang) to track casts of __user pointers to integer types to find places where untagging needs to be done. 2. Static testing with grep to find parts of the kernel that call find_vma() (and other similar functions) or directly compare against vm_start/vm_end fields of vma. 3. Static testing with grep to find parts of the kernel that compare user pointers with TASK_SIZE or other similar consts and macros. 4. Dynamic testing: adding BUG_ON(has_tag(addr)) to find_vma() and running a modified syzkaller version that passes tagged pointers to the kernel. Based on the results of the testing the requried patches have been added to the patchset. This patchset has been merged into the Pixel 2 kernel tree and is now being used to enable testing of Pixel 2 phones with HWASan. This patchset is a prerequisite for ARM's memory tagging hardware feature support [4]. Thanks! [1] https://lkml.org/lkml/2018/12/10/402 [2] http://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html [3] https://github.com/lucvoo/sparse-dev/commit/5f960cb10f56ec2017c128ef9d16060… [4] https://community.arm.com/processors/b/blog/posts/arm-a-profile-architectur… Changes in v10: - Added "mm, arm64: untag user pointers passed to memory syscalls" back. - New patch "fs, arm64: untag user pointers in fs/userfaultfd.c". - New patch "net, arm64: untag user pointers in tcp_zerocopy_receive". - New patch "kernel, arm64: untag user pointers in prctl_set_mm*". - New patch "tracing, arm64: untag user pointers in seq_print_user_ip". Changes in v9: - Rebased onto 4.20-rc6. - Used u64 instead of __u64 in type casts in the untagged_addr macro for arm64. - Added braces around (addr) in the untagged_addr macro for other arches. Changes in v8: - Rebased onto 65102238 (4.20-rc1). - Added a note to the cover letter on why syscall wrappers/shims that untag user pointers won't work. - Added a note to the cover letter that this patchset has been merged into the Pixel 2 kernel tree. - Documentation fixes, in particular added a list of syscalls that don't support tagged user pointers. Changes in v7: - Rebased onto 17b57b18 (4.19-rc6). - Dropped the "arm64: untag user address in __do_user_fault" patch, since the existing patches already handle user faults properly. - Dropped the "usb, arm64: untag user addresses in devio" patch, since the passed pointer must come from a vma and therefore be untagged. - Dropped the "arm64: annotate user pointers casts detected by sparse" patch (see the discussion to the replies of the v6 of this patchset). - Added more context to the cover letter. - Updated Documentation/arm64/tagged-pointers.txt. Changes in v6: - Added annotations for user pointer casts found by sparse. - Rebased onto 050cdc6c (4.19-rc1+). Changes in v5: - Added 3 new patches that add untagging to places found with static analysis. - Rebased onto 44c929e1 (4.18-rc8). Changes in v4: - Added a selftest for checking that passing tagged pointers to the kernel succeeds. - Rebased onto 81e97f013 (4.18-rc1+). Changes in v3: - Rebased onto e5c51f30 (4.17-rc6+). - Added linux-arch@ to the list of recipients. Changes in v2: - Rebased onto 2d618bdf (4.17-rc3+). - Removed excessive untagging in gup.c. - Removed untagging pointers returned from __uaccess_mask_ptr. Changes in v1: - Rebased onto 4.17-rc1. Changes in RFC v2: - Added "#ifndef untagged_addr..." fallback in linux/uaccess.h instead of defining it for each arch individually. - Updated Documentation/arm64/tagged-pointers.txt. - Dropped "mm, arm64: untag user addresses in memory syscalls". - Rebased onto 3eb2ce82 (4.16-rc7). Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck(a)gmail.com> Signed-off-by: Andrey Konovalov <andreyknvl(a)google.com> Andrey Konovalov (12): uaccess: add untagged_addr definition for other arches arm64: untag user pointers in access_ok and __uaccess_mask_ptr lib, arm64: untag user pointers in strn*_user mm, arm64: untag user pointers passed to memory syscalls mm, arm64: untag user pointers in mm/gup.c fs, arm64: untag user pointers in copy_mount_options fs, arm64: untag user pointers in fs/userfaultfd.c net, arm64: untag user pointers in tcp_zerocopy_receive kernel, arm64: untag user pointers in prctl_set_mm* tracing, arm64: untag user pointers in seq_print_user_ip arm64: update Documentation/arm64/tagged-pointers.txt selftests, arm64: add a selftest for passing tagged pointers to kernel Documentation/arm64/tagged-pointers.txt | 25 +++++++++++-------- arch/arm64/include/asm/uaccess.h | 10 +++++--- fs/namespace.c | 2 +- fs/userfaultfd.c | 5 ++++ include/linux/memory.h | 4 +++ ipc/shm.c | 2 ++ kernel/sys.c | 14 +++++++++++ kernel/trace/trace_output.c | 2 +- lib/strncpy_from_user.c | 2 ++ lib/strnlen_user.c | 2 ++ mm/gup.c | 4 +++ mm/madvise.c | 2 ++ mm/mempolicy.c | 5 ++++ mm/migrate.c | 1 + mm/mincore.c | 2 ++ mm/mlock.c | 5 ++++ mm/mmap.c | 7 ++++++ mm/mprotect.c | 2 ++ mm/mremap.c | 2 ++ mm/msync.c | 2 ++ net/ipv4/tcp.c | 2 ++ tools/testing/selftests/arm64/.gitignore | 1 + tools/testing/selftests/arm64/Makefile | 11 ++++++++ .../testing/selftests/arm64/run_tags_test.sh | 12 +++++++++ tools/testing/selftests/arm64/tags_test.c | 19 ++++++++++++++ 25 files changed, 129 insertions(+), 16 deletions(-) create mode 100644 tools/testing/selftests/arm64/.gitignore create mode 100644 tools/testing/selftests/arm64/Makefile create mode 100755 tools/testing/selftests/arm64/run_tags_test.sh create mode 100644 tools/testing/selftests/arm64/tags_test.c -- 2.21.0.rc0.258.g878e2cd30e-goog

5 years, 8 months

5
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next-20190305 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.0.0 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: baf5a9d1f9b95eb97e9eb54932e20dbbf814771c git describe: next-20190305 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20190305 Regressions (compared to build next-20190304) ------------------------------------------------------------------------ qemu_arm64: kselftest: * bpf_test_maps Fixes (compared to build next-20190304) ------------------------------------------------------------------------ dragonboard-410c - arm64: kselftest: * bpf_test_sockmap qemu_arm64: kselftest: * bpf_test_sockmap qemu_x86_64: kselftest: * bpf_test_sockmap In total: ------------------------------------------------------------------------ Ran 317 total tests in the following environments and test suites. pass 233 fail 84 xfail 0 skip 0 Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - i386 - juno-r2 - arm64 - qemu_arm - qemu_arm64 - qemu_i386 - qemu_x86_64 - x15 - arm - x86_64 Test Suites ----------- * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none Failures ------------------------------------------------------------------------ qemu_x86_64: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_progs * kselftest/bpf_test_sock_addr.sh qemu_arm: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user qemu_i386: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user x86: * kselftest-vsyscall-mode-native/bpf_test_btf * kselftest-vsyscall-mode-native/bpf_test_libbpf.sh * kselftest-vsyscall-mode-native/bpf_test_lirc_mode2_user * kselftest-vsyscall-mode-native/bpf_test_progs * kselftest-vsyscall-mode-native/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-native/bpf_test_sockmap * kselftest-vsyscall-mode-none/bpf_test_btf * kselftest-vsyscall-mode-none/bpf_test_libbpf.sh * kselftest-vsyscall-mode-none/bpf_test_lirc_mode2_user * kselftest-vsyscall-mode-none/bpf_test_progs * kselftest-vsyscall-mode-none/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-none/bpf_test_sockmap x15: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user dragonboard-410c: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_progs * kselftest/bpf_test_sock_addr.sh qemu_arm64: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh hi6220-hikey: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap i386: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user juno-r2: Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 8 months

1
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[PATCH] selftest/rseq: Remove duplicate header

by Souptick Joarder

Remove duplicate header which is included twice Signed-off-by: Sabyasachi Gupta <sabyasachi.linux(a)gmail.com> Signed-off-by: Souptick Joarder <jrdr.linux(a)gmail.com> --- tools/testing/selftests/rseq/rseq.h | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/rseq/rseq.h b/tools/testing/selftests/rseq/rseq.h index c72eb70..6c1126e7 100644 --- a/tools/testing/selftests/rseq/rseq.h +++ b/tools/testing/selftests/rseq/rseq.h @@ -16,7 +16,6 @@ #include <errno.h> #include <stdio.h> #include <stdlib.h> -#include <sched.h> #include <linux/rseq.h> /* -- 1.9.1

5 years, 8 months

3
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[PATCH] selftest/proc: Remove duplicate header

by Souptick Joarder

Remove duplicate header which is included twice. Signed-off-by: Sabyasachi Gupta <sabyasachi.linux(a)gmail.com> Signed-off-by: Souptick Joarder <jrdr.linux(a)gmail.com> --- tools/testing/selftests/proc/proc-self-syscall.c | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/proc/proc-self-syscall.c b/tools/testing/selftests/proc/proc-self-syscall.c index 5ab5f48..3a4fec3 100644 --- a/tools/testing/selftests/proc/proc-self-syscall.c +++ b/tools/testing/selftests/proc/proc-self-syscall.c @@ -20,7 +20,6 @@ #include <sys/stat.h> #include <fcntl.h> #include <errno.h> -#include <unistd.h> #include <string.h> #include <stdio.h> -- 1.9.1

5 years, 8 months

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[PATCH] selftests/bpf: Add arm target register definitions

by Adrian Ratiu

eBPF "restricted C" code can be compiled with LLVM/clang using target triplets like armv7l-unknown-linux-gnueabihf and loaded/run with small cross-compiled gobpf/elf [1] programs without requiring a full BCC port which is also undesirable on small embedded systems due to its size footprint. The only missing pieces are these helper macros which otherwise have to be redefined by each eBPF arm program. [1] https://github.com/iovisor/gobpf/tree/master/elf Signed-off-by: Adrian Ratiu <adrian.ratiu(a)collabora.com> --- tools/testing/selftests/bpf/bpf_helpers.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h index 6c77cf7bedce..f7883576f445 100644 --- a/tools/testing/selftests/bpf/bpf_helpers.h +++ b/tools/testing/selftests/bpf/bpf_helpers.h @@ -232,6 +232,9 @@ static int (*bpf_skb_pull_data)(void *, int len) = #elif defined(__TARGET_ARCH_s930x) #define bpf_target_s930x #define bpf_target_defined +#elif defined(__TARGET_ARCH_arm) + #define bpf_target_arm + #define bpf_target_defined #elif defined(__TARGET_ARCH_arm64) #define bpf_target_arm64 #define bpf_target_defined @@ -254,6 +257,8 @@ static int (*bpf_skb_pull_data)(void *, int len) = #define bpf_target_x86 #elif defined(__s390x__) #define bpf_target_s930x +#elif defined(__arm__) + #define bpf_target_arm #elif defined(__aarch64__) #define bpf_target_arm64 #elif defined(__mips__) @@ -291,6 +296,19 @@ static int (*bpf_skb_pull_data)(void *, int len) = #define PT_REGS_SP(x) ((x)->gprs[15]) #define PT_REGS_IP(x) ((x)->psw.addr) +#elif defined(bpf_target_arm) + +#define PT_REGS_PARM1(x) ((x)->uregs[0]) +#define PT_REGS_PARM2(x) ((x)->uregs[1]) +#define PT_REGS_PARM3(x) ((x)->uregs[2]) +#define PT_REGS_PARM4(x) ((x)->uregs[3]) +#define PT_REGS_PARM5(x) ((x)->uregs[4]) +#define PT_REGS_RET(x) ((x)->uregs[14]) +#define PT_REGS_FP(x) ((x)->uregs[11]) /* Works only with CONFIG_FRAME_POINTER */ +#define PT_REGS_RC(x) ((x)->uregs[0]) +#define PT_REGS_SP(x) ((x)->uregs[13]) +#define PT_REGS_IP(x) ((x)->uregs[12]) + #elif defined(bpf_target_arm64) #define PT_REGS_PARM1(x) ((x)->regs[0]) -- 2.20.1

5 years, 8 months

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Re: [RFC v4 08/17] kunit: test: add support for test abort

by Brendan Higgins

On Thu, Feb 28, 2019 at 10:02 AM Stephen Boyd <sboyd(a)kernel.org> wrote: > > Quoting Brendan Higgins (2019-02-28 01:03:24) > > On Tue, Feb 26, 2019 at 12:35 PM Stephen Boyd <sboyd(a)kernel.org> wrote: > > > > > > when they need to abort and then the test runner would detect that error > > > via the return value from the 'run test' function. That would be a more > > > direct approach, but also more verbose than a single KUNIT_ASSERT() > > > line. It would be more kernel idiomatic too because the control flow > > > > Yeah, I was intentionally going against that idiom. I think that idiom > > makes test logic more complicated than it needs to be, especially if > > the assertion failure happens in a helper function; then you have to > > pass that error all the way back up. It is important that test code > > should be as simple as possible to the point of being immediately > > obviously correct at first glance because there are no tests for > > tests. > > > > The idea with assertions is that you use them to state all the > > preconditions for your test. Logically speaking, these are the > > premises of the test case, so if a premise isn't true, there is no > > point in continuing the test case because there are no conclusions > > that can be drawn without the premises. Whereas, the expectation is > > the thing you are trying to prove. It is not used universally in > > x-unit style test frameworks, but I really like it as a convention. > > You could still express the idea of a premise using the above idiom, > > but I think KUNIT_ASSERT_* states the intended idea perfectly. > > Fair enough. It would be great if these sorts of things were described > in the commit text. Good point. Will fix. > > Is the assumption that things like held locks and refcounted elements > won't exist when one of these assertions is made? It sounds like some of > the cleanup logic could be fairly complicated if a helper function > changes some state and then an assert fails and we have to unwind all > the state from a corrupt location. A similar problem exists for a test > timeout too. How do we get back to a sane state if the test locks up for > a long time? Just don't try? It depends on the situation, if it is part of a KUnit test itself (probably not code under test), then you can use the kunit_resource API: https://lkml.org/lkml/2019/2/14/1125; it is inspired by the devm_* family of functions, such that when a KUnit test case ends, for any reason, all the kunit_resources are automatically cleaned up. Similarly, kunit_module.exit is called at the end of every test case, regardless of how it terminates. > > > > > > isn't hidden inside a macro and it isn't intimately connected with > > > kthreads and completions. > > > > Yeah, I wasn't a fan of that myself, but it was broadly available. My > > previous version (still the architecture specific version for UML, not > > in this patchset though) relies on UML_LONGJMP, but is obviously only > > works on UML. A number of people wanted support for other > > architectures. Rob and Luis specifically wanted me to provide a > > version of abort that would work on any architecture, even if it only > > had reduced functionality; I thought this fit the bill okay. > > Ok. > > > > > > > > > > > > > > diff --git a/kunit/test.c b/kunit/test.c > > > > index d18c50d5ed671..6e5244642ab07 100644 > > > > --- a/kunit/test.c > > > > +++ b/kunit/test.c > > > [...] > > > > + > > > > +static void kunit_generic_throw(struct kunit_try_catch *try_catch) > > > > +{ > > > > + try_catch->context.try_result = -EFAULT; > > > > + complete_and_exit(try_catch->context.try_completion, -EFAULT); > > > > +} > > > > + > > > > +static int kunit_generic_run_threadfn_adapter(void *data) > > > > +{ > > > > + struct kunit_try_catch *try_catch = data; > > > > > > > > + try_catch->try(&try_catch->context); > > > > + > > > > + complete_and_exit(try_catch->context.try_completion, 0); > > > > > > The exit code doesn't matter, right? If so, it might be clearer to just > > > return 0 from this function because kthreads exit themselves as far as I > > > recall. > > > > You mean complete and then return? > > Yes. I was confused for a minute because I thought the exit code was > checked, but it isn't. Instead, the try_catch->context.try_result is > where the test result goes, so calling exit explicitly doesn't seem to > be important here, but it is important in the throw case. Yep. > > > > > > > > > > + else if (exit_code) > > > > + kunit_err(test, "Unknown error: %d", exit_code); > > > > +} > > > > + > > > > +void kunit_generic_try_catch_init(struct kunit_try_catch *try_catch) > > > > +{ > > > > + try_catch->run = kunit_generic_run_try_catch; > > > > > > Is the idea that 'run' would be anything besides > > > 'kunit_generic_run_try_catch'? If it isn't going to be different, then > > > > Yeah, it can be overridden with an architecture specific version. > > > > > maybe it's simpler to just have a function like > > > kunit_generic_run_try_catch() that is called by the unit tests instead > > > of having to write 'try_catch->run(try_catch)' and indirect for the > > > basic case. Maybe I've missed the point entirely though and this is all > > > scaffolding for more complicated exception handling later on. > > > > Yeah, the idea is that different architectures can override exception > > handling with their own implementation. This is just the generic one. > > For example, UML has one that doesn't depend on kthreads or > > completions; the UML version also allows recovery from some segfault > > conditions. > > Ok, got it. It may still be nice to have a wrapper or macro for that > try_catch->run(try_catch) statement so we don't have to know that a > try_catch struct has a run member. > > static inline void kunit_run_try_catch(struct kunit_try_catch *try_catch) > { > try_catch->run(try_catch); > } Makes sense. Will fix in the next revision.

5 years, 8 months

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next-20190304 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.0.0-rc8 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: 5d57915a1c8b22938f5fd60405fc159da21b87f6 git describe: next-20190304 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20190304 Regressions (compared to build next-20190301) ------------------------------------------------------------------------ No regressions Fixes (compared to build next-20190301) ------------------------------------------------------------------------ No fixes In total: ------------------------------------------------------------------------ Ran 373 total tests in the following environments and test suites. pass 279 fail 94 xfail 0 skip 0 Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - i386 - juno-r2 - arm64 - qemu_arm - qemu_arm64 - qemu_i386 - qemu_x86_64 - x15 - arm - x86_64 Test Suites ----------- * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none Failures ------------------------------------------------------------------------ qemu_arm: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user qemu_i386: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user qemu_x86_64: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_progs * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap x15: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user i386: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_btf * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sockmap * kselftest/bpf_test_tcpbpf_user dragonboard-410c: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap hi6220-hikey: * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap qemu_arm64: * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap juno-r2: * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_progs * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_sock_addr.sh x86: * kselftest-vsyscall-mode-native/bpf_test_btf * kselftest-vsyscall-mode-native/bpf_test_libbpf.sh * kselftest-vsyscall-mode-native/bpf_test_lirc_mode2_user * kselftest-vsyscall-mode-native/bpf_test_progs * kselftest-vsyscall-mode-native/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-native/bpf_test_sockmap * kselftest-vsyscall-mode-none/bpf_test_btf * kselftest-vsyscall-mode-none/bpf_test_lirc_mode2_user * kselftest-vsyscall-mode-none/bpf_test_progs * kselftest-vsyscall-mode-none/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-none/bpf_test_sockmap * kselftest/bpf_test_btf * kselftest/bpf_test_libbpf.sh * kselftest/bpf_test_lirc_mode2_user * kselftest/bpf_test_progs * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_sockmap Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 8 months

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