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2020-07-08selftests/bpf: Test BPF_CGROUP_INET_SOCK_RELEASEStanislav Fomichev2-0/+117
Simple test that enforces a single SOCK_DGRAM socket per cgroup. Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-08bpftool: Add support for BPF_CGROUP_INET_SOCK_RELEASEStanislav Fomichev1-0/+1
Support attaching to BPF_CGROUP_INET_SOCK_RELEASE and properly display attach type upon prog dump. Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-08libbpf: Add support for BPF_CGROUP_INET_SOCK_RELEASEStanislav Fomichev2-0/+5
Add auto-detection for the cgroup/sock_release programs. Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-07Merge tag 'perf-tools-fixes-2020-07-07' of ↵Linus Torvalds15-40/+123
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tooling fixes from Arnaldo Carvalho de Melo: - Intel PT fixes for PEBS-via-PT with registers - Fixes for Intel PT python based GUI - Avoid duplicated sideband events with Intel PT in system wide tracing - Remove needless 'dummy' event from TUI menu, used when synthesizing meta data events for pre-existing processes - Fix corner case segfault when pressing enter in a screen without entries in the TUI for report/top - Fixes for time stamp handling in libtraceevent - Explicitly set utf-8 encoding in perf flamegraph - Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy', silencing perf build warning * tag 'perf-tools-fixes-2020-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf report TUI: Remove needless 'dummy' event from menu perf intel-pt: Fix PEBS sample for XMM registers perf intel-pt: Fix displaying PEBS-via-PT with registers perf intel-pt: Fix recording PEBS-via-PT with registers perf report TUI: Fix segmentation fault in perf_evsel__hists_browse() tools lib traceevent: Add proper KBUFFER_TYPE_TIME_STAMP handling tools lib traceevent: Add API to read time information from kbuffer perf scripts python: exported-sql-viewer.py: Fix time chart call tree perf scripts python: exported-sql-viewer.py: Fix zero id in call tree 'Find' result perf scripts python: exported-sql-viewer.py: Fix zero id in call graph 'Find' result perf scripts python: exported-sql-viewer.py: Fix unexpanded 'Find' result perf record: Fix duplicated sideband events with Intel PT system wide tracing perf scripts python: export-to-postgresql.py: Fix struct.pack() int argument tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' perf flamegraph: Explicitly set utf-8 encoding
2020-07-07selftests: fix condition in run_testsYauheni Kaliuta1-1/+1
The check if there are any files to install in case of no files compares "X " with "X" so never false. Remove extra spaces. It may make sense to use make's $(if) function here. Signed-off-by: Yauheni Kaliuta <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-07selftests: do not use .ONESHELLYauheni Kaliuta1-11/+9
Using one shell for the whole recipe with long lists can cause make[1]: execvp: /bin/sh: Argument list too long with some shells. Triggered by commit 309b81f0fdc4 ("selftests/bpf: Install generated test progs") It requires to change the rule which rely on the one shell behaviour (run_tests). Simplify also INSTALL_SINGLE_RULE, remove extra echo, required to workaround .ONESHELL. Signed-off-by: Yauheni Kaliuta <[email protected]> Cc: Jiri Benc <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-07perf symbols: Add s390 idle functions 'psw_idle' and 'psw_idle_exit' to list ↵Sven Schnelle1-0/+2
of idle symbols Add the s390 idle functions so they don't show up in top when using software sampling. Signed-off-by: Sven Schnelle <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Igor Lubashev <[email protected]> Cc: Jin Yao <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kim Phillips <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-07selftests: pidfd: skip test if unshare fails with EPERMPaolo Bonzini1-5/+16
Similar to how ENOSYS causes a skip if pidfd_send_signal is not present, we can do the same for unshare if it fails with EPERM. This way, running the test without privileges causes four tests to skip but no early bail out. Acked-by: Christian Brauner <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-07selftests: pidfd: do not use ksft_exit_skip after ksft_set_planPaolo Bonzini1-4/+30
Calling ksft_exit_skip after ksft_set_plan results in executing fewer tests than planned. Use ksft_test_result_skip instead. The plan passed to ksft_set_plan was wrong, too, so fix it while at it. Acked-by: Christian Brauner <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06cpupower: Fix NULL but dereferenced coccicheck errorsShuah Khan1-5/+5
Fix NULL but dereferenced coccicheck errors found by: make coccicheck MODE=report M=tools/power/cpupower tools/power/cpupower/lib/cpufreq.c:384:19-23: ERROR: first is NULL but dereferenced. tools/power/cpupower/lib/cpufreq.c:440:19-23: ERROR: first is NULL but dereferenced. tools/power/cpupower/lib/cpufreq.c:308:19-23: ERROR: first is NULL but dereferenced. tools/power/cpupower/lib/cpufreq.c:753:19-23: ERROR: first is NULL but dereferenced. Signed-off-by: Shuah Khan <[email protected]>
2020-07-06cpupower: Fix comparing pointer to 0 coccicheck warnsShuah Khan1-3/+3
Fix cocciccheck wanrns found by: make coccicheck MODE=report M=tools/power/cpupower/ tools/power/cpupower/utils/helpers/bitmask.c:29:12-13: WARNING comparing pointer to 0, suggest !E tools/power/cpupower/utils/helpers/bitmask.c:29:12-13: WARNING comparing pointer to 0 tools/power/cpupower/utils/helpers/bitmask.c:43:12-13: WARNING comparing pointer to 0 Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests/harness: Report skip reasonKees Cook1-4/+21
Use a share memory segment to pass string information between forked test and the test runner for the skip reason. Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests/harness: Display signed values correctlyKees Cook1-5/+37
Since forever the harness output for signed value tests have reported unsigned values to avoid casting. Instead, actually test the variable types and perform the correct casts and choose the correct format specifiers. Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests/harness: Refactor XFAIL into SKIPKees Cook2-20/+52
Plumb the old XFAIL result into a TAP SKIP. Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests/harness: Switch to TAP outputKees Cook2-24/+33
Using the kselftest_harness.h would result in non-TAP test reporting, which didn't make much sense given that all the requirements for using the low-level API were met. Switch to using ksft_*() helpers while retaining as much of a human-readability as possible. Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests: Add header documentation and helpersKees Cook1-2/+71
Add "how to use this API" documentation to kselftest.h, and include some addition helpers and notes to make things easier to use. Additionally removes the incorrect "Bail out!" line from the standard exit path. The TAP13 specification says that "Bail out!" should be used when giving up before all tests have been run. For a "normal" execution run, the selftests should not report "Bail out!". Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests/binderfs: Fix harness API usageKees Cook1-138/+146
The binderfs test mixed the full harness API and the selftest API. Adjust to use only the harness API so that the harness API can switch to using the selftest API internally in future patches. Acked-by: Christian Brauner <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests: Remove unneeded selftest API headersKees Cook4-4/+0
Remove unused includes of the kselftest.h header. Acked-by: Christian Brauner <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests/clone3: Reorder reporting outputKees Cook3-4/+3
Selftest output reporting was happening before the TAP headers and plan had been emitted. Move the first test reports later. Acked-by: Christian Brauner <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests: sync_test: do not use ksft_exit_skip after ksft_set_planPaolo Bonzini1-1/+1
Calling ksft_exit_skip after ksft_set_plan results in executing fewer tests than planned. Move it before. Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests: sigaltstack: do not use ksft_exit_skip after ksft_set_planPaolo Bonzini1-2/+2
Calling ksft_exit_skip after ksft_set_plan results in executing fewer tests than planned. Use ksft_test_result_skip when possible, or just bail out if memory corruption is detected. Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests: breakpoints: do not use ksft_exit_skip after ksft_set_planPaolo Bonzini1-19/+26
Calling ksft_exit_skip after ksft_set_plan results in executing fewer tests than planned. Use ksft_test_result_skip for the individual tests. The call in suspend() is fine, but ksft_set_plan should be after it. Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests: breakpoints: fix computation of test planPaolo Bonzini1-4/+4
The computation of the test plan uses the available_cpus bitset before calling sched_getaffinity to fill it in. The resulting plan is bogus, fix it. Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06kselftest: fix TAP output for skipped testsPaolo Bonzini2-9/+21
According to the TAP specification, a skipped test must be marked as "ok" and annotated with the SKIP directive, for example ok 23 # skip Insufficient flogiston pressure. (https://testanything.org/tap-specification.html) Fix the kselftest infrastructure to match this. For ksft_exit_skip, it is preferrable to emit a dummy plan line that indicates the whole test was skipped, but this is not always possible because of ksft_exit_skip being used as a "shortcut" by the tests. In that case, print the test counts and a normal "ok" line. The format is now the same independent of whether msg is NULL or not (but it is never NULL in any caller right now). Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06kselftest: ksft_test_num return type should be unsignedPaolo Bonzini1-1/+1
Fixes a compiler warning: In file included from sync_test.c:37: ../kselftest.h: In function ‘ksft_print_cnts’: ../kselftest.h:78:16: warning: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘int’ [-Wsign-compare] if (ksft_plan != ksft_test_num()) ^~ Signed-off-by: Paolo Bonzini <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06ipv6: fib6_select_path can not use out path for nexthop objectsDavid Ahern1-0/+13
Brian reported a crash in IPv6 code when using rpfilter with a setup running FRR and external nexthop objects. The root cause of the crash is fib6_select_path setting fib6_nh in the result to NULL because of an improper check for nexthop objects. More specifically, rpfilter invokes ip6_route_lookup with flowi6_oif set causing fib6_select_path to be called with have_oif_match set. fib6_select_path has early check on have_oif_match and jumps to the out label which presumes a builtin fib6_nh. This path is invalid for nexthop objects; for external nexthops fib6_select_path needs to just return if the fib6_nh has already been set in the result otherwise it returns after the call to nexthop_path_fib6_result. Update the check on have_oif_match to not bail on external nexthops. Update selftests for this problem. Fixes: f88d8ea67fbd ("ipv6: Plumb support for nexthop object in a fib6_info") Reported-by: Brian Rak <[email protected]> Signed-off-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-06selftests: tpm: upgrade TPM2 tests from Python 2 to Python 3Pengfei Xu4-49/+52
Python 2 is no longer supported by the Python upstream project, so upgrade TPM2 tests to Python 3. Fixed minor merge conflicts Shuah Khan <[email protected]> Signed-off-by: Pengfei Xu <[email protected]> Reviewed-by: Jarkko Sakkinen <[email protected]> Tested-by: Jarkko Sakkinen <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-06selftests: mptcp: capture pcap on both sidesMatthieu Baerts1-4/+9
When investigating performance issues that involve latency / loss / reordering it is useful to have the pcap from the sender-side as it allows to easier infer the state of the sender's congestion-control, loss-recovery, etc. Allow the selftests to capture a pcap on both sender and receiver so that this information is not lost when reproducing. This patch also improves the file names. Instead of: ns4-5ee79a56-X4O6gS-ns3-5ee79a56-X4O6gS-MPTCP-MPTCP-10.0.3.1.pcap We now have something like for the same test: 5ee79a56-X4O6gS-ns3-ns4-MPTCP-MPTCP-10.0.3.1-10030-connector.pcap 5ee79a56-X4O6gS-ns3-ns4-MPTCP-MPTCP-10.0.3.1-10030-listener.pcap It was a connection from ns3 to ns4, better to start with ns3 then. The port is also added, easier to find the trace we want. Co-developed-by: Christoph Paasch <[email protected]> Signed-off-by: Christoph Paasch <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-06perf vendor events power9: Added nest imc metric eventsKajol Jain1-0/+35
Added nest imc metric events. Signed-off-by: Kajol Jain <[email protected]> Acked-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Anju T Sudhakar <[email protected]> Cc: Jin Yao <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Nageswara R Sastry <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06perf report TUI: Remove needless 'dummy' event from menuArnaldo Carvalho de Melo1-1/+18
Fixing the common case of: perf record perf report And getting just the cycles events. We now have a 'dummy' event to get perf metadata events that take place while we synthesize metadata records for pre-existing processes by traversing procfs, so we always have this extra 'dummy' evsel, but we don't have to offer it as there will be no samples on it, remove this distraction. Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: https://lore.kernel.org/lkml/[email protected]/ Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06perf intel-pt: Fix PEBS sample for XMM registersAdrian Hunter1-2/+3
The condition to add XMM registers was missing, the regs array needed to be in the outer scope, and the size of the regs array was too small. Fixes: 143d34a6b387b ("perf intel-pt: Add XMM registers to synthesized PEBS sample") Signed-off-by: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Luwei Kang <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06perf intel-pt: Fix displaying PEBS-via-PT with registersAdrian Hunter1-1/+1
After recording PEBS-via-PT, perf script will not accept 'iregs' field e.g. # perf record -c 10000 -e '{intel_pt/branch=0/,branch-loads/aux-output/ppp}' -I -- ls -l ... [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.062 MB perf.data ] # ./perf script --itrace=eop -F+iregs Samples for 'dummy:u' event do not have IREGS attribute set. Cannot print 'iregs' field. Fix by using allow_user_set, which is true when recording AUX area data. Fixes: 9e64cefe4335b ("perf intel-pt: Process options for PEBS event synthesis") Signed-off-by: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Luwei Kang <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06perf intel-pt: Fix recording PEBS-via-PT with registersAdrian Hunter2-2/+3
When recording PEBS-via-PT, the kernel will not accept the intel_pt event with register sampling e.g. # perf record --kcore -c 10000 -e '{intel_pt/branch=0/,branch-loads/aux-output/ppp}' -I -- ls -l Error: intel_pt/branch=0/: PMU Hardware doesn't support sampling/overflow-interrupts. Try 'perf stat' Fix by suppressing register sampling on the intel_pt evsel. Committer notes: Adrian informed that this is only available from Tremont onwards, so on older processors the error continues the same as before. Fixes: 9e64cefe4335b ("perf intel-pt: Process options for PEBS event synthesis") Signed-off-by: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Luwei Kang <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06perf report TUI: Fix segmentation fault in perf_evsel__hists_browse()Wei Li1-6/+11
The segmentation fault can be reproduced as following steps: 1) Executing perf report in tui. 2) Typing '/xxxxx' to filter the symbol to get nothing matched. 3) Pressing enter with no entry selected. Then it will report a segmentation fault. It is caused by the lack of check of browser->he_selection when accessing it's member res_samples in perf_evsel__hists_browse(). These processes are meaningful for specified samples, so we can skip these when nothing is selected. Fixes: 4968ac8fb7c3 ("perf report: Implement browsing of individual samples") Signed-off-by: Wei Li <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Hanjun Guo <[email protected]> Cc: Jin Yao <[email protected]> Cc: Mark Rutland <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Fix reporting of unknown SVM exit reasonsJan Kiszka1-1/+1
On AMD, exist code -1 is also a possible value, but we use it for terminating the list of known exit reasons. This leads to EXIT_ERR being reported for unkown ones. Fix this by using an NULL string pointer as terminal. Link: http://lkml.kernel.org/r/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Jan Kiszka <[email protected]> [ Ported from trace-cmd.git ] Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Change to SPDX License formatSteven Rostedt (VMware)11-174/+11
Replaced COPYING with a description of how the SPDX identifiers are used. Added a GPL-2.0 and LGPL-2.1 license file in the new LICENSES directory. Then removed all the license templates from the source files and replaced them with the corresponding SPDX identifier. Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> [ Ported from trace-cmd.git ] Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Add builtin handler for trace_marker_rawSteven Rostedt (VMware)1-0/+41
When something is written into trace_marker_raw, it goes in as a binary. But the printk_fmt() of the event that is created (raw_data)'s format file only prints the first byte of data: print fmt: "id:%04x %08x", REC->id, (int)REC->buf[0] This is not very useful if we want to see the full data output. Implement the processing of the raw_data event like it is in the kernel. Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> [ Ported from trace-cmd.git ] Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Move kernel_stack event handler to "function" plugin.Tzvetomir Stoyanov (VMware)1-0/+41
The "kernel_stack" event handler does not depend on any trace-cmd context, it can be used aside from the application. The code is moved to libtraceevent "function" plugin. Link: http://lore.kernel.org/linux-trace-devel/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Add plugin for decoding syscalls/sys_enter_futexJulia Cartwright3-0/+139
The futex syscall is a complicated one. It supports thirteen multiplexed operations, each with different semantics and encodings for the syscalls six arguments. Manually decoding these arguments is tedious and error prone. This plugin provides symbolic names for futex operations, futex flags, and tries to be intelligent about the intent of specific arguments (for example, waking operations use 'val' as an integer count, not just an arbitrary value). It doesn't do a full decode of the FUTEX_WAKE_OP's 'val3' argument, however, this is a good starting point. Link: http://lkml.kernel.org/r/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Julia Cartwright <[email protected]> [ Ported from trace-cmd.git ] Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Add offset option for function pluginSteven Rostedt (VMware)1-2/+22
When the offset option is set for the function plugin enabled, it will display the offset of the functions along with their names. This helps in finding exactly where a function was called by its parent. trace-cmd report -O parent -O offset [..] rcuc/163-1330 [163] 740.653251: function: _raw_spin_lock+0x0 <-- rcu_cpu_kthread+0x4d8 Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> [ Ported from trace-cmd.git ] Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Add more SVM exit reasonsJan Kiszka1-2/+21
Exceptions require individual decoding (only feasible intercepts listed), XSETBV was missing and the AVIC brought in two new exit codes. Link: http://lkml.kernel.org/r/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Jan Kiszka <[email protected]> [ Ported from trace-cmd.git ] Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Add plugin for tlb_flushSteven Rostedt (Red Hat)3-0/+83
The tlb_flush tracepoints uses enums that are not yet known by the traceevent library. Add a plugin to handle that. Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> [ Ported from trace-cmd.git ] Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Optimize pretty_print() functionTzvetomir Stoyanov (VMware)3-197/+495
Each time the pretty_print() function is called to print an event, the event's format string is parsed. As this format string does not change, this parsing can be done only once - when the event struct is initialized. Link: https://lore.kernel.org/linux-trace-devel/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Add support for more printk format specifiersTzvetomir Stoyanov (VMware)1-74/+289
The printk format specifiers used in event's print format files extend the standard printf formats. There are a lot of new options related to printing pointers and kernel specific structures. Currently trace-cmd does not support many of them. Support for these new printk specifiers is added to the pretty_print() function: - UUID/GUID address: %pU[bBlL] - Raw buffer as a hex string: %*ph[CDN] These are improved: - MAC address: %pMF, %pM and %pmR - IPv4 adderss: %p[Ii]4[hnbl] Function pretty_print() is refactored. The logic for printing pointers %p[...] is moved to its own function. Link: https://lore.kernel.org/linux-trace-devel/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=207605 Reported-by: Johannes Berg <[email protected]> Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Introduced new traceevent API, for adding new plugins ↵Tzvetomir Stoyanov (VMware)4-1/+82
directories. Implement new traceevent plugin API, which can be used to add new plugins directories: enum tep_plugin_load_priority { TEP_PLUGIN_FIRST, TEP_PLUGIN_LAST, }; int tep_add_plugin_path(struct tep_handle *tep, char *path, enum tep_plugin_load_priority prio); It adds the "path" as new plugin directory, in the context of the handler "tep". The tep_load_plugins() API searches for plugins in this new location. Depending of the priority "prio", the plugins from this directory are loaded before (TEP_PLUGIN_FIRST) or after (TEP_PLUGIN_LAST) the ordinary libtraceevent plugin locations. Link: http://lore.kernel.org/linux-trace-devel/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Add interface for options to pluginsTzvetomir Stoyanov (VMware)2-0/+174
Add tep_plugin_add_option() and tep_plugin_print_options() to lib traceevent library that allows plugins to have their own options. For example, the function plugin by default does not print the parent, as it uses the parent to do the indenting. The "parent" option is created by the function plugin that will print the parent of the function like it does in the trace file. The tep_plugin_print_options() will print out the list of options that a Cc: Tzvetomir Stoyanov (VMware) <[email protected]> plugin has defined. Link: http://lore.kernel.org/linux-trace-devel/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools lib traceevent: Add tep_load_plugins_hook() APITzvetomir Stoyanov (VMware)2-10/+15
Add the API function tep_load_plugins_hook() to the traceevent API to allow tools a common method to load in the plugins that are part of the lib traceevent library. Link: http://lore.kernel.org/linux-trace-devel/[email protected] Link: http://lore.kernel.org/linux-trace-devel/[email protected] Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06tools: hv: change http to https in hv_kvp_daemon.cAlexander A. Klimov1-1/+1
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <[email protected]> Link: https://lore.kernel.org/r/[email protected] [ wei: change subject line to be more specific ] Signed-off-by: Wei Liu <[email protected]>
2020-07-05Merge tag 'x86-urgent-2020-07-05' of ↵Linus Torvalds7-90/+78
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "A series of fixes for x86: - Reset MXCSR in kernel_fpu_begin() to prevent using a stale user space value. - Prevent writing MSR_TEST_CTRL on CPUs which are not explicitly whitelisted for split lock detection. Some CPUs which do not support it crash even when the MSR is written to 0 which is the default value. - Fix the XEN PV fallout of the entry code rework - Fix the 32bit fallout of the entry code rework - Add more selftests to ensure that these entry problems don't come back. - Disable 16 bit segments on XEN PV. It's not supported because XEN PV does not implement ESPFIX64" * tag 'x86-urgent-2020-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ldt: Disable 16-bit segments on Xen PV x86/entry/32: Fix #MC and #DB wiring on x86_32 x86/entry/xen: Route #DB correctly on Xen PV x86/entry, selftests: Further improve user entry sanity checks x86/entry/compat: Clear RAX high bits on Xen PV SYSENTER selftests/x86: Consolidate and fix get/set_eflags() helpers selftests/x86/syscall_nt: Clear weird flags after each test selftests/x86/syscall_nt: Add more flag combinations x86/entry/64/compat: Fix Xen PV SYSENTER frame setup x86/entry: Move SYSENTER's regs->sp and regs->flags fixups into C x86/entry: Assert that syscalls are on the right stack x86/split_lock: Don't write MSR_TEST_CTRL on CPUs that aren't whitelisted x86/fpu: Reset MXCSR to default in kernel_fpu_begin()
2020-07-04selftests/net: update initializer syntax to use c99 designatorsTanner Love1-15/+15
Before, clang version 9 threw errors such as: error: use of GNU old-style field designator extension [-Werror,-Wgnu-designator] { tstamp: true, swtstamp: true } ^~~~~~~ .tstamp = Fix these warnings in tools/testing/selftests/net in the same manner as commit 121e357ac728 ("selftests/harness: Update named initializer syntax"). N.B. rxtimestamp.c is the only affected file in the directory. Signed-off-by: Tanner Love <[email protected]> Acked-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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