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2019-03-05selftests: add tests for pidfd_send_signal()Christian Brauner3-0/+388
As suggested by Andrew Morton in [1] add selftests for the new sys_pidfd_send_signal() syscall: /* test_pidfd_send_signal_syscall_support */ Test whether the pidfd_send_signal() syscall is supported and the tests can be run or need to be skipped. /* test_pidfd_send_signal_simple_success */ Test whether sending a signal via a pidfd works. /* test_pidfd_send_signal_exited_fail */ Verify that sending a signal to an already exited process fails with ESRCH. /* test_pidfd_send_signal_recycled_pid_fail */ Verify that a recycled pid cannot be signaled via a pidfd referring to an already exited process that had the same pid (cf. [2], [3]). [1]: https://lore.kernel.org/lkml/20181228152012.dbf0508c2508138efc5f2bbe@linux-foundation.org/ [2]: https://lore.kernel.org/lkml/20181230210245.GA30252@mail.hallyn.com/ [3]: https://lore.kernel.org/lkml/20181230232711.7aayb7vnhogbv4co@brauner.io/ Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Kees Cook <keescook@chromium.org> Cc: Jann Horn <jannh@google.com> Cc: Andy Lutomirsky <luto@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Aleksa Sarai <cyphar@cyphar.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Florian Weimer <fweimer@redhat.com> Signed-off-by: Christian Brauner <christian@brauner.io> Reviewed-by: Tycho Andersen <tycho@tycho.ws> Acked-by: Serge Hallyn <serge@hallyn.com>
2019-01-25KVM: selftests: check returned evmcs version rangeVitaly Kuznetsov1-0/+6
Check that KVM_CAP_HYPERV_ENLIGHTENED_VMCS returns correct version range. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25kvm: selftests: Fix region overlap check in kvm_utilBen Gardon1-7/+2
Fix a call to userspace_mem_region_find to conform to its spec of taking an inclusive, inclusive range. It was previously being called with an inclusive, exclusive range. Also remove a redundant region bounds check in vm_userspace_mem_region_add. Region overlap checking is already performed by the call to userspace_mem_region_find. Tested: Compiled tools/testing/selftests/kvm with -static Ran all resulting test binaries on an Intel Haswell test machine All tests passed Signed-off-by: Ben Gardon <bgardon@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-21nfit_test: fix security state pull for nvdimm security nfit_testDave Jiang1-2/+2
The override status function needs to be updated to use the proper request parameter in order to get the security state. Fixes: 3c13e2ac747a ("...Add test support for Intel nvdimm security DSMs") Reported-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-01-18tools: bpftool: Cleanup license messThomas Gleixner2-11/+1
Precise and non-ambiguous license information is important. The recent relicensing of the bpftools introduced a license conflict. The files have now: SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause and * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version Amazingly about 20 people acked that change and neither they nor the committer noticed. Oh well. Digging deeper: The files were imported from the iproute2 repository with the GPL V2 or later boiler plate text in commit b66e907cfee2 ("tools: bpftool: copy JSON writer from iproute2 repository") Looking at the iproute2 repository at git://git.kernel.org/pub/scm/network/iproute2/iproute2.git the following commit is the equivivalent: commit d9d8c839 ("json_writer: add SPDX Identifier (GPL-2/BSD-2)") That commit explicitly removes the boiler plate and relicenses the code uner GPL-2.0-only and BSD-2-Clause. As Steven wrote the original code and also the relicensing commit, it's assumed that the relicensing was intended to do exaclty that. Just the kernel side update failed to remove the boiler plate. Do so now. Fixes: 907b22365115 ("tools: bpftool: dual license all files") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Roman Gushchin <guro@fb.com> Cc: YueHaibing <yuehaibing@huawei.com> Cc: Yonghong Song <yhs@fb.com> Cc: Stanislav Fomichev <sdf@google.com> Cc: Sean Young <sean@mess.org> Cc: Jiri Benc <jbenc@redhat.com> Cc: David Calavera <david.calavera@gmail.com> Cc: Andrey Ignatov <rdna@fb.com> Cc: Joe Stringer <joe@wand.net.nz> Cc: David Ahern <dsahern@gmail.com> Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Cc: Petar Penkov <ppenkov@stanford.edu> Cc: Sandipan Das <sandipan@linux.ibm.com> Cc: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: John Fastabend <john.fastabend@gmail.com> Cc: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Quentin Monnet <quentin.monnet@netronome.com> CC: okash.khawaja@gmail.com Cc: netdev@vger.kernel.org Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-01-18bpf: pull in pkt_sched.h header for tooling to fix bpftool buildDaniel Borkmann1-0/+1163
Dan reported that bpftool does not compile for him: $ make tools/bpf DESCEND bpf Auto-detecting system features: .. libbfd: [ on ] .. disassembler-four-args: [ OFF ] DESCEND bpftool Auto-detecting system features: .. libbfd: [ on ] .. disassembler-four-args: [ OFF ] CC /opt/linux.git/tools/bpf/bpftool/net.o In file included from /opt/linux.git/tools/include/uapi/linux/pkt_cls.h:6:0, from /opt/linux.git/tools/include/uapi/linux/tc_act/tc_bpf.h:14, from net.c:13: net.c: In function 'show_dev_tc_bpf': net.c:164:21: error: 'TC_H_CLSACT' undeclared (first use in this function) handle = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS); [...] Fix it by importing pkt_sched.h header copy into tooling infrastructure. Fixes: 49a249c38726 ("tools/bpftool: copy a few net uapi headers to tools directory") Fixes: f6f3bac08ff9 ("tools/bpf: bpftool: add net support") Reported-by: Dan Gilson <dan_gilson@yahoo.com> Reference: https://bugzilla.kernel.org/show_bug.cgi?id=202315 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-01-18selftests: forwarding: Add a test case for externally learned FDB entriesIdo Schimmel1-1/+33
Test that externally learned FDB entries can roam, but not age out. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-18selftests: mlxsw: Test FDB offload indicationIdo Schimmel1-0/+20
Test that externally learned FDB entries added from user space are marked as offloaded. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-17selftests/seccomp: Abort without user notification supportKees Cook1-5/+5
In the face of missing user notification support, the self test needs to stop executing a test (ASSERT_*) instead of just reporting and continuing (EXPECT_*). This adjusts the user notification tests to do that where needed. Reported-by: Shuah Khan <shuah@kernel.org> Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace") Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Tycho Andersen <tycho@tycho.ws> Tested-by: Shuah Khan <shuah@kernel.org> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-17selftests/bpf: retry tests that expect build-idStanislav Fomichev1-0/+30
While running test_progs in a loop I found out that I'm sometimes hitting "Didn't find expected build ID from the map" error. Looking at stack_map_get_build_id_offset() it seems that it is racy (by design) and can sometimes return BPF_STACK_BUILD_ID_IP (i.e. can't trylock current->mm->mmap_sem). Let's retry this test a single time. Fixes: 13790d1cc72c ("bpf: add selftest for stackmap with build_id in NMI context") Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-01-16selftests: tc-testing: fix parsing of ife typeDavide Caratti1-44/+44
In iproute2 commit 90c5c969f0b9 ("fix print_0xhex on 32 bit"), the format specifier for the ife type changed from 0x%X to %#llX, causing systematic failures in the following TDC test cases: 7682 - Create valid ife encode action with mark and pass control ef47 - Create valid ife encode action with mark and pipe control df43 - Create valid ife encode action with mark and continue control e4cf - Create valid ife encode action with mark and drop control ccba - Create valid ife encode action with mark and reclassify control a1cf - Create valid ife encode action with mark and jump control cb3d - Create valid ife encode action with mark value at 32-bit maximum 95ed - Create valid ife encode action with prio and pass control aa17 - Create valid ife encode action with prio and pipe control 74c7 - Create valid ife encode action with prio and continue control 7a97 - Create valid ife encode action with prio and drop control f66b - Create valid ife encode action with prio and reclassify control 3056 - Create valid ife encode action with prio and jump control 7dd3 - Create valid ife encode action with prio value at 32-bit maximum 05bb - Create valid ife encode action with tcindex and pass control ce65 - Create valid ife encode action with tcindex and pipe control 09cd - Create valid ife encode action with tcindex and continue control 8eb5 - Create valid ife encode action with tcindex and continue control 451a - Create valid ife encode action with tcindex and drop control d76c - Create valid ife encode action with tcindex and reclassify control e731 - Create valid ife encode action with tcindex and jump control b7b8 - Create valid ife encode action with tcindex value at 16-bit maximum 2a9c - Create valid ife encode action with mac src parameter cf5c - Create valid ife encode action with mac dst parameter 2353 - Create valid ife encode action with mac src and mac dst parameters 552c - Create valid ife encode action with mark and type parameters 0421 - Create valid ife encode action with prio and type parameters 4017 - Create valid ife encode action with tcindex and type parameters fac3 - Create valid ife encode action with index at 32-bit maximnum 7c25 - Create valid ife decode action with pass control dccb - Create valid ife decode action with pipe control 7bb9 - Create valid ife decode action with continue control d9ad - Create valid ife decode action with drop control 219f - Create valid ife decode action with reclassify control 8f44 - Create valid ife decode action with jump control b330 - Create ife encode action with cookie Change 'matchPattern' values, allowing '0' and '0x0' if ife type is equal to 0, and accepting both '0x' and '0X' otherwise, to let these tests pass both with old and new tc binaries. While at it, fix a small typo in test case fac3 ('maximnum'->'maximum'). Signed-off-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-16selftests: gpio-mockup-chardev: Check asprintf() for errorGeert Uytterhoeven1-3/+6
With gcc 7.3.0: gpio-mockup-chardev.c: In function ‘get_debugfs’: gpio-mockup-chardev.c:62:3: warning: ignoring return value of ‘asprintf’, declared with attribute warn_unused_result [-Wunused-result] asprintf(path, "%s/gpio", mnt_fs_get_target(fs)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Handle asprintf() failures to fix this. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-16selftests: seccomp: use LDLIBS instead of LDFLAGSFathi Boudra1-1/+1
seccomp_bpf fails to build due to undefined reference errors: aarch64-linaro-linux-gcc --sysroot=/build/tmp-rpb-glibc/sysroots/hikey -O2 -pipe -g -feliminate-unused-debug-types -Wl,-no-as-needed -Wall -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -lpthread seccomp_bpf.c -o /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf /tmp/ccrlR3MW.o: In function `tsync_sibling': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1920: undefined reference to `sem_post' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1920: undefined reference to `sem_post' /tmp/ccrlR3MW.o: In function `TSYNC_setup': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1863: undefined reference to `sem_init' /tmp/ccrlR3MW.o: In function `TSYNC_teardown': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1904: undefined reference to `sem_destroy' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1897: undefined reference to `pthread_kill' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1898: undefined reference to `pthread_cancel' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1899: undefined reference to `pthread_join' /tmp/ccrlR3MW.o: In function `tsync_start_sibling': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /tmp/ccrlR3MW.o: In function `TSYNC_siblings_fail_prctl': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1978: undefined reference to `sem_wait' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1990: undefined reference to `pthread_join' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1992: undefined reference to `pthread_join' /tmp/ccrlR3MW.o: In function `tsync_start_sibling': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_ancestor': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2016: undefined reference to `sem_wait' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2032: undefined reference to `pthread_join' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2034: undefined reference to `pthread_join' /tmp/ccrlR3MW.o: In function `tsync_start_sibling': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /tmp/ccrlR3MW.o: In function `TSYNC_two_sibling_want_nnp': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2046: undefined reference to `sem_wait' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2058: undefined reference to `pthread_join' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2060: undefined reference to `pthread_join' /tmp/ccrlR3MW.o: In function `tsync_start_sibling': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_no_filter': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2073: undefined reference to `sem_wait' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2098: undefined reference to `pthread_join' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2100: undefined reference to `pthread_join' /tmp/ccrlR3MW.o: In function `tsync_start_sibling': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_one_divergence': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2125: undefined reference to `sem_wait' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2143: undefined reference to `pthread_join' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2145: undefined reference to `pthread_join' /tmp/ccrlR3MW.o: In function `tsync_start_sibling': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_not_under_filter': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2169: undefined reference to `sem_wait' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2202: undefined reference to `pthread_join' /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2227: undefined reference to `pthread_join' /tmp/ccrlR3MW.o: In function `tsync_start_sibling': /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create' It's GNU Make and linker specific. The default Makefile rule looks like: $(CC) $(CFLAGS) $(LDFLAGS) $@ $^ $(LDLIBS) When linking is done by gcc itself, no issue, but when it needs to be passed to proper ld, only LDLIBS follows and then ld cannot know what libs to link with. More detail: https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html LDFLAGS Extra flags to give to compilers when they are supposed to invoke the linker, ‘ld’, such as -L. Libraries (-lfoo) should be added to the LDLIBS variable instead. LDLIBS Library flags or names given to compilers when they are supposed to invoke the linker, ‘ld’. LOADLIBES is a deprecated (but still supported) alternative to LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS variable. https://lkml.org/lkml/2010/2/10/362 tools/perf: libraries must come after objects Link order matters, use LDLIBS instead of LDFLAGS to properly link against libpthread. Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-15selftests: tc-testing: fix tunnel_key failure if dst_port is unspecifiedDavide Caratti1-1/+1
After commit 1c25324caf82 ("net/sched: act_tunnel_key: Don't dump dst port if it wasn't set"), act_tunnel_key doesn't dump anymore the destination port, unless it was explicitly configured. This caused systematic failures in the following TDC test case: 7a88 - Add tunnel_key action with cookie parameter Avoid matching zero values of TCA_TUNNEL_KEY_ENC_DST_PORT to let the test pass again. Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-15selftests: tc-testing: drop test on missing tunnel key idDavide Caratti1-29/+0
After merge of commit 80ef0f22ceda ("net/sched: act_tunnel_key: Allow key-less tunnels"), act_tunnel_key does not reject anymore requests to install 'set' rules where the key id is missing. Therefore, drop the following TDC testcase: ba4e - Add tunnel_key set action with missing mandatory id parameter because it's going to become a systematic fail as soon as userspace iproute2 will start supporting key-less tunnels. Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-16tools/bpf: properly account for libbfd variationsStanislav Fomichev1-1/+8
On some platforms, in order to link against libbfd, we need to link against liberty and even possibly libz. Account for that in the bpftool Makefile. We now have proper feature detection for each case, so handle each one separately. See recent commit 14541b1e7e72 ("perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz") where I fixed feature detection. v2 (addressed Jakub's nits): * better syntax for 'else ifeq' * no space between ifeq args v3: * use LIBS, not EXTLIBS for -DHAVE_LIBBFD_SUPPORT Fixes: 29a9c10e4110 ("bpftool: make libbfd optional") Signed-off-by: Stanislav Fomichev <sdf@google.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-01-15selftests/txtimestamp: Fix an equals vs assign bugDan Carpenter1-1/+1
This should be == instead of =. Fixes: b52354aa068e ("selftests: expand txtimestamp with ipv6 dgram + raw and pf_packet") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-15selftests/vm/gup_benchmark.c: match gup struct to kernelAlison Schofield1-0/+1
An expansion field was added to the kernel copy of this structure for future use. See mm/gup_benchmark.c. Add the same expansion field here, so that the IOCTL command decodes correctly. Otherwise, it fails with EINVAL. Signed-off-by: Alison Schofield <alison.schofield@intel.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-15bpf: libbpf: retry loading program on EAGAINLorenz Bauer1-4/+15
Commit c3494801cd17 ("bpf: check pending signals while verifying programs") makes it possible for the BPF_PROG_LOAD to fail with EAGAIN. Retry unconditionally in this case. Fixes: c3494801cd17 ("bpf: check pending signals while verifying programs") Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-01-15selftests/bpf: install with_tunnels.sh for test_flow_dissector.shStanislav Fomichev1-0/+1
test_flow_dissector.sh depends on both with_addr.sh and with_tunnels.sh However, we install only with_addr.sh. Add with_tunnels.sh to TEST_PROGS_EXTENDED to make sure it gets installed as well. Tested with: make TARGETS=bpf install INSTALL_PATH=$PWD/x Fixes: ef4ab8447aa26 ("selftests: bpf: install script with_addr.sh") Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-01-15x86/selftests/pkeys: Fork() to check for state being preservedDave Hansen1-10/+31
There was a bug where the per-mm pkey state was not being preserved across fork() in the child. fork() is performed in the pkey selftests, but all of the pkey activity is performed in the parent. The child does not perform any actions sensitive to pkey state. To make the test more sensitive to these kinds of bugs, add a fork() where the parent exits, and execution continues in the child. To achieve this let the key exhaustion test not terminate at the first allocation failure and fork after 2*NR_PKEYS loops and continue in the child. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: bp@alien8.de Cc: hpa@zytor.com Cc: peterz@infradead.org Cc: mpe@ellerman.id.au Cc: will.deacon@arm.com Cc: luto@kernel.org Cc: jroedel@suse.de Cc: stable@vger.kernel.org Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Will Deacon <will.deacon@arm.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Joerg Roedel <jroedel@suse.de> Link: https://lkml.kernel.org/r/20190102215657.585704B7@viggo.jf.intel.com
2019-01-14tools/testing/selftests/x86/unwind_vdso.c: Remove duplicate headerSabyasachi Gupta1-1/+0
Remove sys/ucontext.h which is included more than once. Signed-off-by: Sabyasachi Gupta <sabyasachi.linux@gmail.com> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-14x86/mpx/selftests: fix spelling mistake "succeded" -> "succeeded"Colin Ian King1-1/+1
There is a spelling mistake eprintf error message, fix it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-14selftests: rtc: rtctest: add alarm test on minute boundaryAlexandre Belloni1-0/+102
Unfortunately, some RTC don't have a second resolution for alarm so also test for alarm on a minute boundary. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-14selftests: rtc: rtctest: fix alarm testsAlexandre Belloni1-5/+2
Return values for select are not checked properly and timeouts may not be detected. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-11tools/bpf: fix bpftool map dump with bitfieldsYonghong Song1-6/+7
Commit 8772c8bc093b ("tools: bpftool: support pretty print with kind_flag set") added bpftool map dump with kind_flag support. When bitfield_size can be retrieved directly from btf_member, function btf_dumper_bitfield() is called to dump the bitfield. The implementation passed the wrong parameter "bit_offset" to the function. The excepted value is the bit_offset within a byte while the passed-in value is the struct member offset. This commit fixed the bug with passing correct "bit_offset" with adjusted data pointer. Fixes: 8772c8bc093b ("tools: bpftool: support pretty print with kind_flag set") Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-01-11tools/bpf: test btf bitfield with >=256 struct member offsetYonghong Song1-8/+21
This patch modified test_btf pretty print test to cover the bitfield with struct member equal to or greater 256. Without the previous kernel patch fix, the modified test will fail: $ test_btf -p ...... BTF pretty print array(#1)......unexpected pprint output expected: 0: {0,0,0,0x3,0x0,0x3,{0|[0,0,0,0,0,0,0,0]},ENUM_ZERO,4,0x1} read: 0: {0,0,0,0x3,0x0,0x3,{0|[0,0,0,0,0,0,0,0]},ENUM_ZERO,4,0x0} BTF pretty print array(#2)......unexpected pprint output expected: 0: {0,0,0,0x3,0x0,0x3,{0|[0,0,0,0,0,0,0,0]},ENUM_ZERO,4,0x1} read: 0: {0,0,0,0x3,0x0,0x3,{0|[0,0,0,0,0,0,0,0]},ENUM_ZERO,4,0x0} PASS:6 SKIP:0 FAIL:2 With the kernel fix, the modified test will succeed: $ test_btf -p ...... BTF pretty print array(#1)......OK BTF pretty print array(#2)......OK PASS:8 SKIP:0 FAIL:0 Fixes: 9d5f9f701b18 ("bpf: btf: fix struct/union/fwd types with kind_flag") Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-01-10selftests: bpf: install files tcp_(server|client)*.pyAnders Roxell1-1/+3
When test_tcpbpf_user runs it complains that it can't find files tcp_server.py and tcp_client.py. Rework so that tcp_server.py and tcp_client.py gets installed, added them to the variable TEST_PROGS_EXTENDED. Fixes: d6d4f60c3a09 ("bpf: add selftest for tcpbpf") Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-01-10selftests/bpf: add missing executables to .gitignoreStanislav Fomichev2-0/+2
We build test_libbpf with CXX to make sure linking against C++ works. $ make -s -C tools/lib/bpf $ git status -sb ? tools/lib/bpf/test_libbpf $ make -s -C tools/testing/selftests/bpf $ git status -sb ? tools/lib/bpf/test_libbpf ? tools/testing/selftests/bpf/test_libbpf Fixes: 8c4905b995c6 ("libbpf: make sure bpf headers are c++ include-able") Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-01-10tools headers powerpc: Remove unistd.hRavi Bangoria2-405/+0
We use syscall.tbl to generate system call table on powerpc. The unistd.h copy is no longer required now. Remove it. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Namhyung Kim <namhyung@kernel.org> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/20190110094936.3132-2-ravi.bangoria@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-10perf powerpc: Rework syscall table generationRavi Bangoria3-14/+450
Commit aff850393200 ("powerpc: add system call table generation support") changed how systemcall table is generated for powerpc. Incorporate these changes into perf as well. Committer testing: $ podman run --entrypoint=/bin/sh --privileged -v /home/acme/git:/git --rm -ti docker.io/acmel/linux-perf-tools-build-ubuntu:18.04-x-powerpc64 perfbuilder@d7a7af166a80:/git/perf$ head -2 /etc/os-release NAME="Ubuntu" VERSION="18.04.1 LTS (Bionic Beaver)" perfbuilder@d7a7af166a80:/git/perf$ perfbuilder@d7a7af166a80:/git/perf$ make ARCH=powerpc CROSS_COMPILE=powerpc64-linux-gnu- EXTRA_CFLAGS= -C /git/linux/tools/perf O=/tmp/build/perf make: Entering directory '/git/linux/tools/perf' BUILD: Doing 'make -j8' parallel build HOSTCC /tmp/build/perf/fixdep.o HOSTLD /tmp/build/perf/fixdep-in.o LINK /tmp/build/perf/fixdep Warning: Kernel ABI header at 'tools/include/uapi/linux/mman.h' differs from latest version at 'include/uapi/linux/mman.h' diff -u tools/include/uapi/linux/mman.h include/uapi/linux/mman.h sh: 1: command: Illegal option -c Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... gtk2: [ OFF ] ... libaudit: [ OFF ] ... libbfd: [ OFF ] ... libelf: [ on ] ... libnuma: [ OFF ] ... numa_num_possible_cpus: [ OFF ] ... libperl: [ OFF ] ... libpython: [ OFF ] ... libslang: [ OFF ] ... libcrypto: [ OFF ] ... libunwind: [ OFF ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ OFF ] ... get_cpuid: [ OFF ] ... bpf: [ on ] Makefile.config:445: No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev Makefile.config:491: No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR Makefile.config:583: No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev Makefile.config:598: slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev Makefile.config:612: GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev Makefile.config:639: Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev Makefile.config:666: No python interpreter was found: disables Python support - please install python-devel/python-dev Makefile.config:721: No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling Makefile.config:750: No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev Makefile.config:763: No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev Makefile.config:814: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev Makefile.config:840: No alternatives command found, you need to set JDIR= to point to the root of your Java directory GEN /tmp/build/perf/common-cmds.h <SNIP> CC /tmp/build/perf/util/syscalltbl.o <SNIP> LD /tmp/build/perf/libperf-in.o AR /tmp/build/perf/libperf.a LINK /tmp/build/perf/perf make: Leaving directory '/git/linux/tools/perf' perfbuilder@d7a7af166a80:/git/perf$ head /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_64.c static const char *syscalltbl_powerpc_64[] = { [0] = "restart_syscall", [1] = "exit", [2] = "fork", [3] = "read", [4] = "write", [5] = "open", [6] = "close", [7] = "waitpid", [8] = "creat", perfbuilder@d7a7af166a80:/git/perf$ tail /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_64.c [381] = "pwritev2", [382] = "kexec_file_load", [383] = "statx", [384] = "pkey_alloc", [385] = "pkey_free", [386] = "pkey_mprotect", [387] = "rseq", [388] = "io_pgetevents", }; #define SYSCALLTBL_POWERPC_64_MAX_ID 388 perfbuilder@d7a7af166a80:/git/perf$ head /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c static const char *syscalltbl_powerpc_32[] = { [0] = "restart_syscall", [1] = "exit", [2] = "fork", [3] = "read", [4] = "write", [5] = "open", [6] = "close", [7] = "waitpid", [8] = "creat", perfbuilder@d7a7af166a80:/git/perf$ tail /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c [381] = "pwritev2", [382] = "kexec_file_load", [383] = "statx", [384] = "pkey_alloc", [385] = "pkey_free", [386] = "pkey_mprotect", [387] = "rseq", [388] = "io_pgetevents", }; #define SYSCALLTBL_POWERPC_32_MAX_ID 388 perfbuilder@d7a7af166a80:/git/perf$ Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Namhyung Kim <namhyung@kernel.org> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/20190110094936.3132-1-ravi.bangoria@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-09perf symbols: Add 'arch_cpu_idle' to the list of kernel idle symbolsArnaldo Carvalho de Melo1-0/+1
When testing 'perf top' on a armhf system (32-bit, Orange Pi Zero), I noticed that 'arch_cpu_idle' dominated, add it to the list of idle symbols, so that we can see what is that being done when not idle. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-4q2b5g4p2hrstrhp9t2mrlho@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-09tools include uapi: Sync linux/if_link.h copy with the kernel sourcesArnaldo Carvalho de Melo1-0/+19
To pick the changes from: a428afe82f98 ("net: bridge: add support for user-controlled bool options") a025fb5f49ad ("geneve: Allow configuration of DF behaviour") b4d3069783bc ("vxlan: Allow configuration of DF behaviour") Silencing this tools/ build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Cc: Stefano Brivio <sbrivio@redhat.com> Link: https://lkml.kernel.org/n/tip-wq410s2wuqv5k980bidw0ju8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools/vm/page_owner: use page_owner_sort in the use exampleMiles Chen1-1/+3
The example in comment does not useable because the output binary is named "page_owner_sort", not "sort". Also add a reference to Documentation/vm/page_owner.rst Link: http://lkml.kernel.org/r/1546515361-8317-1-git-send-email-miles.chen@mediatek.com Signed-off-by: Miles Chen <miles.chen@mediatek.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-08selftests: forwarding: Add a test for VLAN deletionIdo Schimmel1-1/+14
Add a VLAN on a bridge port, delete it and make sure the PVID VLAN is not affected. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-08selftests: forwarding: Fix test for different devicesIdo Schimmel1-1/+1
When running the test on the Spectrum ASIC the generated packets are counted on the ingress filter and injected back to the pipeline because of the 'pass' action. The router block then drops the packets due to checksum error, as the test generates packets with zero checksum. When running the test on an emulator that is not as strict about checksum errors the test fails since packets are counted twice. Once by the emulated ASIC on its ingress filter and again by the kernel as the emulator does not perform checksum validation and allows the packets to be trapped by a matching host route. Fix this by changing the action to 'drop', which will prevent the packet from continuing further in the pipeline to the router block. For veth pairs this change is essentially a NOP given packets are only processed once (by the kernel). Fixes: a0b61f3d8ebf ("selftests: forwarding: vxlan_bridge_1d: Add an ECN decap test") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-08selftests: mlxsw: Add a test case for VLAN addition error flowIdo Schimmel1-0/+18
Add a test case for the issue fixed by previous commit. In case the offloading of an unsupported VxLAN tunnel was triggered by adding the mapped VLAN to a local port, then error should be returned to the user. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-08tools include uapi: Sync linux/vhost.h with the kernel sourcesArnaldo Carvalho de Melo1-111/+2
To get the changes in: 4b86713236e4 ("vhost: split structs into a separate header file") Silencing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h' diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h Those didn't touch things used in tools, i.e. the following continues working: $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh static const char *vhost_virtio_ioctl_cmds[] = { [0x00] = "SET_FEATURES", [0x01] = "SET_OWNER", [0x02] = "RESET_OWNER", [0x03] = "SET_MEM_TABLE", [0x04] = "SET_LOG_BASE", [0x07] = "SET_LOG_FD", [0x10] = "SET_VRING_NUM", [0x11] = "SET_VRING_ADDR", [0x12] = "SET_VRING_BASE", [0x13] = "SET_VRING_ENDIAN", [0x14] = "GET_VRING_ENDIAN", [0x20] = "SET_VRING_KICK", [0x21] = "SET_VRING_CALL", [0x22] = "SET_VRING_ERR", [0x23] = "SET_VRING_BUSYLOOP_TIMEOUT", [0x24] = "GET_VRING_BUSYLOOP_TIMEOUT", [0x25] = "SET_BACKEND_FEATURES", [0x30] = "NET_SET_BACKEND", [0x40] = "SCSI_SET_ENDPOINT", [0x41] = "SCSI_CLEAR_ENDPOINT", [0x42] = "SCSI_GET_ABI_VERSION", [0x43] = "SCSI_SET_EVENTS_MISSED", [0x44] = "SCSI_GET_EVENTS_MISSED", [0x60] = "VSOCK_SET_GUEST_CID", [0x61] = "VSOCK_SET_RUNNING", }; static const char *vhost_virtio_ioctl_read_cmds[] = { [0x00] = "GET_FEATURES", [0x12] = "GET_VRING_BASE", [0x26] = "GET_BACKEND_FEATURES", }; $ At some point in the eBPFication of perf, using something like: # perf trace -e ioctl(cmd=VHOST_VRING*) Will setup a BPF filter right at the raw_syscalls:sys_enter tracepoint, i.e. filtering at the origin. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-g28usrt7l59lwq3wuh8vzbig@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools include uapi: Sync linux/fs.h copy with the kernel sourcesArnaldo Carvalho de Melo1-52/+8
To get the changes in: e262e32d6bde ("vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled") That made the mount flags string table generator to switch to using mount.h instead. This silences the following perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fs.h' differs from latest version at 'include/uapi/linux/fs.h' diff -u tools/include/uapi/linux/fs.h include/uapi/linux/fs.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Howells <dhowells@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-mosz81pa6iwxko4p2owbm3ss@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08perf beauty: Switch from using uapi/linux/fs.h to uapi/linux/mount.hArnaldo Carvalho de Melo1-2/+2
As now we'll update our fs.h copy and what tools/perf/trace/beauty/mount_flags.sh needs just got moved to mount.h, use that instead. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Howells <dhowells@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-ls19h376xukeouxrw9dswkcn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools include uapi: Grab a copy of linux/mount.hArnaldo Carvalho de Melo2-0/+59
We were using a copy of uapi/linux/fs.h to create the mount syscall 'flags' string table to use in 'perf trace', to convert from the number obtained via the raw_syscalls:sys_enter into a string, using tools/perf/trace/beauty/mount_flags.sh, but in e262e32d6bde ("vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled") those defines got moved to linux/mount.h, so grab a copy of mount.h too. Keep the uapi/linux/fs.h as we'll use it for the SEEK_ constants. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Howells <dhowells@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-i2ricmpwpdrpukfq3298jr1z@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08perf top: Lift restriction on using callchains without "sym" in --sortArnaldo Carvalho de Melo1-6/+1
This restriction is not present in 'perf report' and since 'perf top' uses the same hists browser, remove it from it as well. With this we create per event buckets with callchain trees, so that # perf top --sort dso -g --no-children Bucketizes samples by DSO and below it shows the callchains leading to functions in this DSO. Try also: # perf top -e sched:*switch -g --no-children To see the callchains leading to sched switches, pressing 'E' to expand all one can quickly see the most common scheduler switches and what leads to them, for instance, calls to IO, futexes, etc. Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: https://lkml.kernel.org/r/20190107140854.GA28965@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools lib traceevent: Remove tep_data_event_from_type() APITzvetomir Stoyanov2-13/+0
In order to make libtraceevent into a proper library, its API should be straightforward. After discussion with Steven Rostedt, we decided to remove the tep_data_event_from_type() API and to replace it with tep_find_event(), as it does the same. Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181201040852.913841066@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools lib traceevent: Rename tep_is_file_bigendian() to tep_file_bigendian()Tzvetomir Stoyanov3-4/+4
In order to make libtraceevent into a proper library, its API should be straightforward. After a discussion with Steven Rostedt, we decided to rename a few APIs, to have more intuitive names. This patch renames tep_is_file_bigendian() to tep_file_bigendian(). Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181201040852.767549746@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools lib traceevent: Changed return logic of tep_register_event_handler() APITzvetomir Stoyanov2-2/+13
In order to make libtraceevent into a proper library, its API should be straightforward. The tep_register_event_handler() functions returns -1 in case it successfully registers the new event handler. Such return code is used by the other library APIs in case of an error. To unify the return logic of tep_register_event_handler() with the other APIs, this patch introduces enum tep_reg_handler, which is used by this function as return value, to handle all possible successful return cases. Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181201040852.628034497@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools lib traceevent: Changed return logic of trace_seq_printf() and trace_seq_vprintf() APIsTzvetomir Stoyanov1-5/+12
In order to make libtraceevent into a proper library, its API should be straightforward. The trace_seq_printf() and trace_seq_vprintf() APIs have inconsistent returned values with the other trace_seq_* APIs. This path changes the return logic of trace_seq_printf() and trace_seq_vprintf() to return the number of printed characters, as the other trace_seq_* related APIs. Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181201040852.485792891@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools lib traceevent: Rename struct cmdline to struct tep_cmdlineTzvetomir Stoyanov3-24/+24
In order to make libtraceevent a proper library, variables, data structures and functions should have a unique prefix to prevent name space conflicts. That prefix will be "tep_". This patch renames 'struct cmdline' to 'struct tep_cmdline'. Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181201040852.358871851@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools lib traceevent: Initialize host_bigendian at tep_handle allocationTzvetomir Stoyanov1-1/+3
This patch initializes the host_bigendian member of the tep_handle structure with the byte order of the current host, when this handler is created - in tep_alloc() API. We need this in order to remove the tep_set_host_bigendian() API. Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181201040852.216292134@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08tools lib traceevent: Introduce new libtracevent API: tep_override_comm()Tzvetomir Stoyanov2-15/+55
This patch adds a new API of tracevent library: tep_override_comm() It registers a pid / command mapping. If a mapping with the same pid already exists, the entry is updated with the new command. Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181130154648.038915912@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-08perf tests: Add a test for the ARM 32-bit [vectors] pageFlorian Fainelli4-0/+34
perf on ARM requires CONFIG_KUSER_HELPERS to be turned on to allow some independance with respect to the ARM CPU being used. Add a test which tries to locate the [vectors] page, created when CONFIG_KUSER_HELPERS is turned on to help asses the system's health. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Chris Healy <cphealy@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: http://lkml.kernel.org/r/20181221034337.26663-3-f.fainelli@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>