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2017-09-13Merge tag 'perf-urgent-for-mingo-4.14-20170912' of ↵Ingo Molnar1-1/+7
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - Fix TUI progress bar when delta from new total from that of the previous update is greater than the progress "step" (screen width progress bar block)) (Jiri Olsa) - Make tools/lib/api make DEBUG=1 build use -D_FORTIFY_SOURCE=2 not to cripple debuginfo, just like tools/perf/ does (Jiri Olsa) - Avoid leaking the 'perf.data' file to workloads started from the 'perf record' command line by using the O_CLOEXEC open flag (Jiri Olsa) - Fix building when libunwind's 'unwind.h' file is present in the include path, clashing with tools/perf/util/unwind.h (Milian Wolff) - Check per .perfconfig section entry flag, not just per section (Taeung Song) - Support running perf binaries with a dash in their name, needed to run perf as an AppImage (Milian Wolff) - Wait for the right child by using waitpid() when running workloads from 'perf stat', also to fix using perf as an AppImage (Milian Wolff) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-09-12tools lib api: Fix make DEBUG=1 buildJiri Olsa1-1/+7
Do not use -D_FORTIFY_SOURCE=2 for DEBUG build as it seems to mess up with debuginfo, which results in bad gdb experience. We already do that for tools/perf/. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20170908084621.31595-1-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds5-4/+69
Pull networking updates from David Miller: 1) Support ipv6 checksum offload in sunvnet driver, from Shannon Nelson. 2) Move to RB-tree instead of custom AVL code in inetpeer, from Eric Dumazet. 3) Allow generic XDP to work on virtual devices, from John Fastabend. 4) Add bpf device maps and XDP_REDIRECT, which can be used to build arbitrary switching frameworks using XDP. From John Fastabend. 5) Remove UFO offloads from the tree, gave us little other than bugs. 6) Remove the IPSEC flow cache, from Florian Westphal. 7) Support ipv6 route offload in mlxsw driver. 8) Support VF representors in bnxt_en, from Sathya Perla. 9) Add support for forward error correction modes to ethtool, from Vidya Sagar Ravipati. 10) Add time filter for packet scheduler action dumping, from Jamal Hadi Salim. 11) Extend the zerocopy sendmsg() used by virtio and tap to regular sockets via MSG_ZEROCOPY. From Willem de Bruijn. 12) Significantly rework value tracking in the BPF verifier, from Edward Cree. 13) Add new jump instructions to eBPF, from Daniel Borkmann. 14) Rework rtnetlink plumbing so that operations can be run without taking the RTNL semaphore. From Florian Westphal. 15) Support XDP in tap driver, from Jason Wang. 16) Add 32-bit eBPF JIT for ARM, from Shubham Bansal. 17) Add Huawei hinic ethernet driver. 18) Allow to report MD5 keys in TCP inet_diag dumps, from Ivan Delalande. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1780 commits) i40e: point wb_desc at the nvm_wb_desc during i40e_read_nvm_aq i40e: avoid NVM acquire deadlock during NVM update drivers: net: xgene: Remove return statement from void function drivers: net: xgene: Configure tx/rx delay for ACPI drivers: net: xgene: Read tx/rx delay for ACPI rocker: fix kcalloc parameter order rds: Fix non-atomic operation on shared flag variable net: sched: don't use GFP_KERNEL under spin lock vhost_net: correctly check tx avail during rx busy polling net: mdio-mux: add mdio_mux parameter to mdio_mux_init() rxrpc: Make service connection lookup always check for retry net: stmmac: Delete dead code for MDIO registration gianfar: Fix Tx flow control deactivation cxgb4: Ignore MPS_TX_INT_CAUSE[Bubble] for T6 cxgb4: Fix pause frame count in t4_get_port_stats cxgb4: fix memory leak tun: rename generic_xdp to skb_xdp tun: reserve extra headroom only when XDP is set net: dsa: bcm_sf2: Configure IMP port TC2QOS mapping net: dsa: bcm_sf2: Advertise number of egress queues ...
2017-08-28perf tools: Robustify detection of clang binaryDavid Carrillo-Cisneros2-2/+2
Prior to this patch, make scripts tested for CLANG with ifeq ($(CC), clang), failing to detect CLANG binaries with different names. Fix it by testing for the existence of __clang__ macro in the list of compiler defined macros. Signed-off-by: David Carrillo-Cisneros <davidcc@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Paul Turner <pjt@google.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20170827075442.108534-5-davidcc@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-08-28tools lib: Allow external definition of CC, AR and LDDavid Carrillo-Cisneros1-3/+3
Use already defined values for CC, AR and LD when available. Signed-off-by: David Carrillo-Cisneros <davidcc@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Paul Turner <pjt@google.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20170827075442.108534-4-davidcc@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-08-28bpf: convert sockmap field attach_bpf_fd2 to typeJohn Fastabend2-15/+3
In the initial sockmap API we provided strparser and verdict programs using a single attach command by extending the attach API with a the attach_bpf_fd2 field. However, if we add other programs in the future we will be adding a field for every new possible type, attach_bpf_fd(3,4,..). This seems a bit clumsy for an API. So lets push the programs using two new type fields. BPF_SK_SKB_STREAM_PARSER BPF_SK_SKB_STREAM_VERDICT This has the advantage of having a readable name and can easily be extended in the future. Updates to samples and sockmap included here also generalize tests slightly to support upcoming patch for multiple map support. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Fixes: 174a79ff9515 ("bpf: sockmap with sk redirect support") Suggested-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-24Merge branch 'linus' into perf/core, to pick up fixesIngo Molnar1-1/+2
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+2
2017-08-20tools lib bpf: improve warningEric Leblond1-1/+2
Signed-off-by: Eric Leblond <eric@regit.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-19bpf: Allow numa selection in INNER_LRU_HASH_PREALLOC test of map_perf_testMartin KaFai Lau2-4/+34
This patch makes the needed changes to allow each process of the INNER_LRU_HASH_PREALLOC test to provide its numa node id when creating the lru map. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-17tools lib bpf: Fix double file test in MakefileDaniel Díaz1-2/+2
The Makefile verifies the same file exists twice: test -f ../../../include/uapi/linux/bpf.h -a \ -f ../../../include/uapi/linux/bpf.h The purpose of the check is to ensure the diff (immediately after the test) doesn't fail with these two files: tools/include/uapi/linux/bpf.h include/uapi/linux/bpf.h Same recipe for bpf_common: test -f ../../../include/uapi/linux/bpf_common.h -a \ -f ../../../include/uapi/linux/bpf_common.h This corrects the location of the tests. Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1502814810-960-1-git-send-email-daniel.diaz@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-08-16bpf: selftests add sockmap testsJohn Fastabend2-0/+31
This generates a set of sockets, attaches BPF programs, and sends some simple traffic using basic send/recv pattern. Additionally, we do a bunch of negative tests to ensure adding/removing socks out of the sockmap fail correctly. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-16bpf: sockmap sample programJohn Fastabend2-3/+15
This program binds a program to a cgroup and then matches hard coded IP addresses and adds these to a sockmap. This will receive messages from the backend and send them to the client. client:X <---> frontend:10000 client:X <---> backend:10001 To keep things simple this is only designed for 1:1 connections using hard coded values. A more complete example would allow many backends and clients. To run, # sockmap <cgroup2_dir> Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10Merge tag 'perf-core-for-mingo-4.14-20170801' of ↵Ingo Molnar1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements from Arnaldo Carvalho de Melo: User visible changes: - Beautifiers for the 'cmd' arg of several ioctl types, including: sound, DRM, KVM, vhost virtio and perf_events. This was done by using scripts that extract the information from the UAPI headers, generating string tables that are then used in the 'perf trace' syscall argument ioctl beautifier. More work needed to further use it, for instance, to use the _IOC_DIR value where it is used sanely to suppress the third argument, to set formatters for non-pointer values and ultimately for using eBPF + pahole-like code to collect + beautify structs in the third arg. Using the current scheme of having tools/ copies of kernel headers we'll make sure tooling stays working when changes are made to the kernel ABI headers and will be notified when they get changed, reducing the time for 'perf trace' to support new ABIs and allowing the tools/perf/ codebase to have the definitions it needs to build in dozens of distros/versions, as routinely tested using containers for, at this time, 47 environments. (Arnaldo Carvalho de Melo) Infrastructure changes: - Clarify header version warning message (Ingo Molnar) - Sync kernel ABI headers with tooling headers (Ingo Molnar, Arnaldo Carvalho de Melo) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-10Merge branch 'perf/urgent' into perf/core, to pick up fixesIngo Molnar1-1/+2
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+2
The UDP offload conflict is dealt with by simply taking what is in net-next where we have removed all of the UFO handling code entirely. The TCP conflict was a case of local variables in a function being removed from both net and net-next. In netvsc we had an assignment right next to where a missing set of u64 stats sync object inits were added. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04bpf, s390: fix build for libbpf and selftest suiteDaniel Borkmann1-0/+2
The BPF feature test as well as libbpf is missing the __NR_bpf define for s390 and currently refuses to compile (selftest suite depends on libbpf as well). Similar issue was fixed some time ago via b0c47807d31d ("bpf: Add sparc support to tools and samples."), just do the same and add definitions. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+0
Two minor conflicts in virtio_net driver (bug fix overlapping addition of a helper) and MAINTAINERS (new driver edit overlapping revamp of PHY entry). Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-31perf build: Clarify open-coded header version warning messageIngo Molnar1-2/+2
In this patch we changed the header checks: perf build: Clarify header version warning message Unfortunately the header checks were copied to various places and thus the message got out of sync. Fix some of them here. Note that there's still old, misleading messages remaining in: tools/objtool/Makefile: || echo "warning: objtool: x86 instruction decoder differs from kernel" >&2 )) || true tools/objtool/Makefile: || echo "warning: objtool: orc_types.h differs from kernel" >&2 )) || true here objtool copied the perf message, plus: tools/perf/util/intel-pt-decoder/Build: || echo "Warning: Intel PT: x86 instruction decoder differs from kernel" >&2 )) || true here the PT code regressed over the original message and only emits a vague warning instead of specific file names... All of this should be consolidated into tools/Build/ and used in a consistent manner. Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: David Carrillo-Cisneros <davidcc@google.com> Cc: Francis Deslauriers <francis.deslauriers@efficios.com> Cc: Geneviève Bastien <gbastien@versatic.net> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Julien Desfossez <jdesfossez@efficios.com> Cc: Martin Liška <mliska@suse.cz> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Turner <pjt@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Simon Que <sque@chromium.org> Cc: Stephane Eranian <eranian@google.com> Cc: Taeung Song <treeze.taeung@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20170730095130.bblldwxjz5hamybb@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-30Merge branch 'perf/urgent' into perf/core, to pick up latest fixes and ↵Ingo Molnar2-3/+76
refresh the tree Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-07-26bpf: don't zero out the info struct in bpf_obj_get_info_by_fd()Jakub Kicinski1-1/+0
The buffer passed to bpf_obj_get_info_by_fd() should be initialized to zeros. Kernel will enforce that to guarantee we can safely extend info structures in the future. Making the bpf_obj_get_info_by_fd() call in libbpf perform the zeroing is problematic, however, since some members of the info structures may need to be initialized by the callers (for instance pointers to buffers to which kernel is to dump translated and jited images). Remove the zeroing and fix up the in-tree callers before any kernel has been released with this code. As Daniel points out this seems to be the intended operation anyway, since commit 95b9afd3987f ("bpf: Test for bpf ID") is itself setting the buffer pointers before calling bpf_obj_get_info_by_fd(). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-26bpf: install libbpf headers on 'make install'Jakub Kicinski1-0/+4
Add a new target to install the bpf.h header to $(prefix)/include/bpf/ directory. This is necessary to build standalone applications using libbpf, without the need to clone the kernel sources and point to them. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-20bpf: allow to specify log level and reduce it for test_verifierDaniel Borkmann2-3/+3
For the test_verifier case, it's quite hard to parse log level 2 to figure out what's causing an issue when used to log level 1. We do want to use bpf_verify_program() in order to simulate some of the tests with strict alignment. So just add an argument to pass the level and put it to 1 for test_verifier. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-20tools lib: Update copy of strtobool from the kernel sourcesArnaldo Carvalho de Melo1-7/+25
Getting support for "on", "off" introduced in a81a5a17d44b ("lib: add "on"/"off" support to kstrtobool") and making it check for NULL, introduced in ef951599074b ("lib: move strtobool() to kstrtobool()"). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Cc: Kees Cook <keescook@chromium.org> Link: http://lkml.kernel.org/n/tip-mu8ghin4rklacmmubzwv8td7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-20tools include: Adopt strstarts() from the kernelArnaldo Carvalho de Melo3-19/+10
Replacing prefixcmp(), same purpose, inverted result, so standardize on the kernel variant, to reduce silly differences among tools/ and the kernel sources, making it easier for people to work in both codebases. And then doing: if (strstarts(option, "no-")) Looks clearer than doing: if (!prefixcmp(option, "no-")) To figure out if option starts witn "no-". Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-kaei42gi7lpa8subwtv7eug8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2-0/+73
Pull networking updates from David Miller: "Reasonably busy this cycle, but perhaps not as busy as in the 4.12 merge window: 1) Several optimizations for UDP processing under high load from Paolo Abeni. 2) Support pacing internally in TCP when using the sch_fq packet scheduler for this is not practical. From Eric Dumazet. 3) Support mutliple filter chains per qdisc, from Jiri Pirko. 4) Move to 1ms TCP timestamp clock, from Eric Dumazet. 5) Add batch dequeueing to vhost_net, from Jason Wang. 6) Flesh out more completely SCTP checksum offload support, from Davide Caratti. 7) More plumbing of extended netlink ACKs, from David Ahern, Pablo Neira Ayuso, and Matthias Schiffer. 8) Add devlink support to nfp driver, from Simon Horman. 9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa Prabhu. 10) Add stack depth tracking to BPF verifier and use this information in the various eBPF JITs. From Alexei Starovoitov. 11) Support XDP on qed device VFs, from Yuval Mintz. 12) Introduce BPF PROG ID for better introspection of installed BPF programs. From Martin KaFai Lau. 13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann. 14) For loads, allow narrower accesses in bpf verifier checking, from Yonghong Song. 15) Support MIPS in the BPF selftests and samples infrastructure, the MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David Daney. 16) Support kernel based TLS, from Dave Watson and others. 17) Remove completely DST garbage collection, from Wei Wang. 18) Allow installing TCP MD5 rules using prefixes, from Ivan Delalande. 19) Add XDP support to Intel i40e driver, from Björn Töpel 20) Add support for TC flower offload in nfp driver, from Simon Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub Kicinski, and Bert van Leeuwen. 21) IPSEC offloading support in mlx5, from Ilan Tayari. 22) Add HW PTP support to macb driver, from Rafal Ozieblo. 23) Networking refcount_t conversions, From Elena Reshetova. 24) Add sock_ops support to BPF, from Lawrence Brako. This is useful for tuning the TCP sockopt settings of a group of applications, currently via CGROUPs" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits) net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap cxgb4: Support for get_ts_info ethtool method cxgb4: Add PTP Hardware Clock (PHC) support cxgb4: time stamping interface for PTP nfp: default to chained metadata prepend format nfp: remove legacy MAC address lookup nfp: improve order of interfaces in breakout mode net: macb: remove extraneous return when MACB_EXT_DESC is defined bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case bpf: fix return in load_bpf_file mpls: fix rtm policy in mpls_getroute net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t net, ax25: convert ax25_route.refcount from atomic_t to refcount_t net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t ...
2017-07-03Merge branch 'perf-core-for-linus' of ↵Linus Torvalds2-0/+34
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Most of the changes are for tooling, the main changes in this cycle were: - Improve Intel-PT hardware tracing support, both on the kernel and on the tooling side: PTWRITE instruction support, power events for C-state tracing, etc. (Adrian Hunter) - Add support to measure SMI cost to the x86 architecture, with tooling support in 'perf stat' (Kan Liang) - Support function filtering in 'perf ftrace', plus related improvements (Namhyung Kim) - Allow adding and removing fields to the default 'perf script' columns, using + or - as field prefixes to do so (Andi Kleen) - Allow resolving the DSO name with 'perf script -F brstack{sym,off},dso' (Mark Santaniello) - Add perf tooling unwind support for PowerPC (Paolo Bonzini) - ... and various other improvements as well" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (84 commits) perf auxtrace: Add CPU filter support perf intel-pt: Do not use TSC packets for calculating CPU cycles to TSC perf intel-pt: Update documentation to include new ptwrite and power events perf intel-pt: Add example script for power events and PTWRITE perf intel-pt: Synthesize new power and "ptwrite" events perf intel-pt: Move code in intel_pt_synth_events() to simplify attr setting perf intel-pt: Factor out intel_pt_set_event_name() perf intel-pt: Tidy messages into called function intel_pt_synth_event() perf intel-pt: Tidy Intel PT evsel lookup into separate function perf intel-pt: Join needlessly wrapped lines perf intel-pt: Remove unused instructions_sample_period perf intel-pt: Factor out common code synthesizing event samples perf script: Add synthesized Intel PT power and ptwrite events perf/x86/intel: Constify the 'lbr_desc[]' array and make a function static perf script: Add 'synth' field for synthesized event payloads perf auxtrace: Add itrace option to output power events perf auxtrace: Add itrace option to output ptwrite events tools include: Add byte-swapping macros to kernel.h perf script: Add 'synth' event type for synthesized events x86/insn: perf tools: Add new ptwrite instruction ...
2017-06-21tools lib api fs: Add sysfs__write_int functionKan Liang2-0/+34
Add sysfs__write_int() to ease up writing int to sysfs. New interface is: int sysfs__write_int(const char *entry, int value); Also, introducing filename__write_int() which is useful for new helpers to write sysctl values. Signed-off-by: Kan Liang <Kan.liang@intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Elliott <elliott@hpe.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1495825538-5230-2-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-06-06bpf: Test for bpf IDMartin KaFai Lau2-0/+73
Add test to exercise the bpf_prog/map id generation, bpf_(prog|map)_get_next_id(), bpf_(prog|map)_get_fd_by_id() and bpf_get_obj_info_by_fd(). Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Alexei Starovoitov <ast@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-05tools/lib/lockdep: Remove private kernel headersLevin, Alexander (Sasha Levin)34-410/+3
Move to using tools/include/ instead. Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@redhat.com Link: http://lkml.kernel.org/r/20170531003747.10557-2-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Hide liblockdep output from test resultsLevin, Alexander (Sasha Levin)1-2/+2
This would prevent the liblockdep error messages from getting mixed in with the test result output. Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Cc: ben@decadent.org.uk Link: http://lkml.kernel.org/r/20170525130005.5947-22-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Add dummy current_gfp_context()Levin, Alexander (Sasha Levin)1-0/+3
Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Cc: ben@decadent.org.uk Link: http://lkml.kernel.org/r/20170525130005.5947-21-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Add empty __is_[module,kernel]_percpu_addressLevin, Alexander (Sasha Levin)2-0/+10
This would fix the build error caused by: 383776fa7 ("locking/lockdep: Handle statically initialized PER_CPU locks properly") Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Cc: ben@decadent.org.uk Link: http://lkml.kernel.org/r/20170525130005.5947-19-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Include err.hLevin, Alexander (Sasha Levin)1-0/+1
This provides PTR_ERR() now used by lockdep. Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Cc: ben@decadent.org.uk Link: http://lkml.kernel.org/r/20170525130005.5947-18-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Use LDFLAGSBen Hutchings1-1/+1
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-16-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Remove double-quotes from sonameBen Hutchings1-1/+1
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-15-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Fix object file paths used in an out-of-tree buildBen Hutchings1-4/+4
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-14-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Fix compilation for 4.11Levin, Alexander (Sasha Levin)4-3/+6
- More rcu stubs - New dummy headers due to sched header split - jhash2 included in due to kernel lockdep inclusion and usage Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Cc: ben@decadent.org.uk Link: http://lkml.kernel.org/r/20170525130005.5947-13-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Don't mix fd-based and stream IOAlexander Sverdlin3-3/+6
Mixing fd-based and stream-base IO results in interleaved output like following: ===================================== liblockdep 4.7.6 ------------------------------------- conopal/372 is trying to release lock (0x3a45c) at: /lib/libpt.so.2.17-alpha2(_ZN11PTimedMutex6SignalEv+0x3c) [0xb613c688] but there are no more locks to release! other info that might help us debug this: no locks held by conopal/372. stack backtrace: ===================================== liblockdep 4.7.6 ---------------------------------/usr/lib/liblockdep.so.4.7.6(+0x1e3c)[0xb67c2e3c] /usr/lib/liblockdep.so.4.7.6(+0x5fe0)[0xb67c6fe0] /usr/lib/liblockdep.so.4.7.6(+0x6450)[0xb67c7450] /usr/lib/liblockdep.so.4.7.6(lock_release+0x5c)[0xb67c7c40] /usr/lib/liblockdep.so.4.7.6(pthread_mutex_unlock+0x38)[0xb67c91d4] /lib/libpt.so.2.17-alpha2(_ZN11PTimedMutex6SignalEv+0x3c)[0xb613c688] /lib/libpt.so.2.17-alpha2(_ZN10PContainer14AssignContentsERKS_+0xe4)[0xb6160730] /lib/libopal.so.3.17-alpha2(_ZN15OpalMediaFormat14AssignContentsERK10PContainer+0x90)[0xb6435edc] /lib/libopal.so.3.17-alpha2(_ZN15OpalMediaFormataSERK7PString+0x68)[0xb643b610] /lib/libopal.so.3.17-alpha2(_ZN15OpalMediaFormatC2EPKc+0x68)[0xb643b6cc] /lib/libopal.so.3.17-alpha2(_ZN11OpalWAVFile14AddMediaFormatERK15OpalMediaFormat+0x330)[0xb66b2224] /lib/libopal.so.3.17-alpha2(+0x2526f8)[0xb640c6f8] /lib/ld-linux-armhf.so.3(+0x102f0)[0xb6f852f0] /lib/ld-linux-armhf.so.3(+0x1044c)[0xb6f8544c] /lib/ld-linux-armhf.so.3(+0xac4)[0xb6f75ac4] /usr/lib/liblockdep.so.4.7.6(+0x1e3c)[0xb67c2e3c] /usr/lib/liblockdep.so.4.7.6(+0x5fe0)[0xb67c6fe0] /usr/lib/liblockdep.so.4.7.6(+0x6450)[0xb67c7450] /usr/lib/liblockdep.so.4.7.6(lock_release+0x5c)[0xb67c7c40] /usr/lib/liblockdep.so.4.7.6(pthread_mutex_unlock+0x38)[0xb67c91d4] /lib/libpt.so.2.17-alpha2(_ZN11PTimedMutex6SignalEv+0x3c)[0xb613c688] /lib/libopal.so.3.17-alpha2(_ZN15OpalMediaFormat14AssignContentsERK10PContainer+0x78)[0xb6435ec4] /lib/libopal.so.3.17-alpha2(_ZN15OpalMediaFormataSERK7PString+0x68)[0xb643b610] /lib/libopal.so.3.17-alpha2(_ZN15OpalMediaFormatC2EPKc+0x68)[0xb643b6cc] /lib/libopal.so.3.17-alpha2(_ZN11OpalWAVFile14AddMediaFormatERK15OpalMediaFormat+0x330)[0xb66b2224] /lib/libopal.so.3.17-alpha2(+0x2526f8)[0xb640c6f8] /lib/ld-linux-armhf.so.3(+0x102f0)[0xb6f852f0] /lib/ld-linux-armhf.so.3(+0x1044c)[0xb6f8544c] /lib/ld-linux-armhf.so.3(+0xac4)[0xb6f75ac4] Therefore change all bare printf(...) to dprintf(STDOUT_FILENO, ...) to sychronize with backtrace_symbols_fd(). [ BUG: bad unlock balance detected! ] Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Cc: ben@decadent.org.uk Link: http://lkml.kernel.org/r/20170525130005.5947-12-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Remove -lpthread compiler optionVishal Thanki1-2/+2
With -lpthread option, the test for ABBA_2threads was failing, and test passed if it was removed. Since -pthread compiler option is sufficient for linking to pthread libraries, this patch removes -lpthread. Signed-off-by: Vishal Thanki <vishalthanki@gmail.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Cc: ben@decadent.org.uk Link: http://lkml.kernel.org/r/20170525130005.5947-9-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Fix 'defined but not used' warning for init_utsname()Ben Hutchings2-10/+10
We define init_utsname() as static but not inline, resulting in a warning for every source file that includes lockdep.h but doesn't call it. Since it is only used by lockdep.c, define it in there. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-8-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Fix 'set but not used' warningsBen Hutchings1-4/+4
liblockdep defines trivial macros for working with interrupt flags, as interrupts are never disabled in userland. This results in warnings from gcc when -Wunused-but-set-variable is enabled, and it is enabled by -Wall. Fix this by evaluating the flags parameter and casting it to void. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-7-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Fix 'unused value' warningsBen Hutchings3-5/+15
liblockdep defines various macros that may expand to an expression with no effect, while the in-kernel definition does have an effect. This results in warnings from gcc when -Wunused-value is enabled, and is is enabled by -Wall. Fix this by introducing trivial functions, as function return values are generally allowed to be ignored. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-6-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Enable -Wall by defaultBen Hutchings1-0/+1
Regressions in liblockdep may be missed because it doesn't enable warnings. Adding -Wall immediately introduces a lot of warnings, but those will be fixed by the following commits. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-5-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Define the ARRAY_SIZE() macroBen Hutchings1-0/+2
lockdep.c now uses ARRAY_SIZE(). Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Fixes: 75dd602a5198 ("lockdep: Fix lock_chain::base size") Link: http://lkml.kernel.org/r/20170525130005.5947-4-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Reduce MAX_LOCK_DEPTH to avoid overflowing lock_chain/: DepthBen Hutchings1-1/+1
liblockdep has been broken since commit 75dd602a5198 ("lockdep: Fix lock_chain::base size"), as that adds a check that MAX_LOCK_DEPTH is within the range of lock_chain::depth and in liblockdep it is much too large. That should have resulted in a compiler error, but didn't because: - the check uses ARRAY_SIZE(), which isn't yet defined in liblockdep so is assumed to be an (undeclared) function - putting a function call inside a BUILD_BUG_ON() expression quietly turns it into some nonsense involving a variable-length array It did produce a compiler warning, but I didn't notice because liblockdep already produces too many warnings if -Wall is enabled (which I'll fix shortly). Even before that commit, which reduced lock_chain::depth from 8 bits to 6, MAX_LOCK_DEPTH was too large. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: <stable@vger.kernel.org> # for versions before 4.6, use a value of 255 Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-3-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-05tools/lib/lockdep: Fix undefined symbol prandom_u32Ben Hutchings1-0/+7
__lock_pin_lock() now calls prandom_u32() which is not defined in liblockdep. __lock_pin_lock() and its caller lock_pin_lock() are dead code in liblockdep, but we still need to provide a definition of prandom_u32() in case lazy binding is disabled. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Fixes: e7904a28f533 ("locking/lockdep, sched/core: Implement a better ...") Link: http://lkml.kernel.org/r/20170525130005.5947-2-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-05-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2-0/+26
Pull networking fixes from David Miller: 1) Track alignment in BPF verifier so that legitimate programs won't be rejected on !CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS architectures. 2) Make tail calls work properly in arm64 BPF JIT, from Deniel Borkmann. 3) Make the configuration and semantics Generic XDP make more sense and don't allow both generic XDP and a driver specific instance to be active at the same time. Also from Daniel. 4) Don't crash on resume in xen-netfront, from Vitaly Kuznetsov. 5) Fix use-after-free in VRF driver, from Gao Feng. 6) Use netdev_alloc_skb_ip_align() to avoid unaligned IP headers in qca_spi driver, from Stefan Wahren. 7) Always run cleanup routines in BPF samples when we get SIGTERM, from Andy Gospodarek. 8) The mdio phy code should bring PHYs out of reset using the shared GPIO lines before invoking bus->reset(). From Florian Fainelli. 9) Some USB descriptor access endian fixes in various drivers from Johan Hovold. 10) Handle PAUSE advertisements properly in mlx5 driver, from Gal Pressman. 11) Fix reversed test in mlx5e_setup_tc(), from Saeed Mahameed. 12) Cure netdev leak in AF_PACKET when using timestamping via control messages. From Douglas Caetano dos Santos. 13) netcp doesn't support HWTSTAMP_FILTER_ALl, reject it. From Miroslav Lichvar. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits) ldmvsw: stop the clean timer at beginning of remove ldmvsw: unregistering netdev before disable hardware net: netcp: fix check of requested timestamping filter ipv6: avoid dad-failures for addresses with NODAD qed: Fix uninitialized data in aRFS infrastructure mdio: mux: fix device_node_continue.cocci warnings net/packet: fix missing net_device reference release net/mlx4_core: Use min3 to select number of MSI-X vectors macvlan: Fix performance issues with vlan tagged packets net: stmmac: use correct pointer when printing normal descriptor ring net/mlx5: Use underlay QPN from the root name space net/mlx5e: IPoIB, Only support regular RQ for now net/mlx5e: Fix setup TC ndo net/mlx5e: Fix ethtool pause support and advertise reporting net/mlx5e: Use the correct pause values for ethtool advertising vmxnet3: ensure that adapter is in proper state during force_close sfc: revert changes to NIC revision numbers net: ch9200: add missing USB-descriptor endianness conversions net: irda: irda-usb: fix firmware name on big-endian hosts net: dsa: mv88e6xxx: add default case to switch ...
2017-05-12Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds4-9/+11
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates/fixes from Ingo Molnar: "Mostly tooling updates, but also two kernel fixes: a call chain handling robustness fix and an x86 PMU driver event definition fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/callchain: Force USER_DS when invoking perf_callchain_user() tools build: Fixup sched_getcpu feature test perf tests kmod-path: Don't fail if compressed modules aren't supported perf annotate: Fix AArch64 comment char perf tools: Fix spelling mistakes perf/x86: Fix Broadwell-EP DRAM RAPL events perf config: Refactor a duplicated code for obtaining config file name perf symbols: Allow user probes on versioned symbols perf symbols: Accept symbols starting at address 0 tools lib string: Adopt prefixcmp() from perf and subcmd perf units: Move parse_tag_value() to units.[ch] perf ui gtk: Move gtk .so name to the only place where it is used perf tools: Move HAS_BOOL define to where perl headers are used perf memswap: Split the byteswap memory range wrappers from util.[ch] perf tools: Move event prototypes from util.h to event.h perf buildid: Move prototypes from util.h to build-id.h
2017-05-11bpf: Add bpf_verify_program() to the library.David S. Miller2-0/+26
This allows a test case to load a BPF program and unconditionally acquire the verifier log. It also allows specification of the strict alignment flag. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net>