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* Merge branch 'android-4.4-p' of ↵Michael Bestas2020-08-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998 This brings LA.UM.8.4.r1-05900-8x98.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: 59f04f292e871 ANDROID: fix a bug in quota2 Conflicts: Makefile fs/ext4/inode.c fs/f2fs/dir.c Change-Id: Ic71b44a02908cf633d96114f0ff745cf1e1186de
| * perf tools: Fix snprint warnings for gcc 8Jiri Olsa2020-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 77f18153c080855e1c3fb520ca31a4e61530121d upstream. [Add an additional sprintf replacement in tools/perf/builtin-script.c] With gcc 8 we get new set of snprintf() warnings that breaks the compilation, one example: tests/mem.c: In function ‘check’: tests/mem.c:19:48: error: ‘%s’ directive output may be truncated writing \ up to 99 bytes into a region of size 89 [-Werror=format-truncation=] snprintf(failure, sizeof failure, "unexpected %s", out); The gcc docs says: To avoid the warning either use a bigger buffer or handle the function's return value which indicates whether or not its output has been truncated. Given that all these warnings are harmless, because the code either properly fails due to uncomplete file path or we don't care for truncated output at all, I'm changing all those snprintf() calls to scnprintf(), which actually 'checks' for the snprint return value so the gcc stays silent. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Link: http://lkml.kernel.org/r/20180319082902.4518-1-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge android-4.4@59ff2e1 (v4.4.78) into msm-4.4Blagovest Kolenichev2017-08-04
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * refs/heads/tmp-59ff2e1 Linux 4.4.78 kvm: vmx: allow host to access guest MSR_IA32_BNDCFGS kvm: vmx: Check value written to IA32_BNDCFGS kvm: x86: Guest BNDCFGS requires guest MPX support kvm: vmx: Do not disable intercepts for BNDCFGS KVM: x86: disable MPX if host did not enable MPX XSAVE features tracing: Use SOFTIRQ_OFFSET for softirq dectection for more accurate results PM / QoS: return -EINVAL for bogus strings PM / wakeirq: Convert to SRCU sched/topology: Optimize build_group_mask() sched/topology: Fix overlapping sched_group_mask crypto: caam - fix signals handling crypto: sha1-ssse3 - Disable avx2 crypto: atmel - only treat EBUSY as transient if backlog crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD mm: fix overflow check in expand_upwards() tpm: Issue a TPM2_Shutdown for TPM2 devices. Add "shutdown" to "struct class". tpm: Provide strong locking for device removal tpm: Get rid of chip->pdev selftests/capabilities: Fix the test_execve test mnt: Make propagate_umount less slow for overlapping mount propagation trees mnt: In propgate_umount handle visiting mounts in any order mnt: In umount propagation reparent in a separate pass vt: fix unchecked __put_user() in tioclinux ioctls exec: Limit arg stack to at most 75% of _STK_LIM s390: reduce ELF_ET_DYN_BASE powerpc: move ELF_ET_DYN_BASE to 4GB / 4MB arm64: move ELF_ET_DYN_BASE to 4GB / 4MB arm: move ELF_ET_DYN_BASE to 4MB binfmt_elf: use ELF_ET_DYN_BASE only for PIE checkpatch: silence perl 5.26.0 unescaped left brace warnings fs/dcache.c: fix spin lockup issue on nlru->lock mm/list_lru.c: fix list_lru_count_node() to be race free kernel/extable.c: mark core_kernel_text notrace tools/lib/lockdep: Reduce MAX_LOCK_DEPTH to avoid overflowing lock_chain/: Depth parisc/mm: Ensure IRQs are off in switch_mm() parisc: DMA API: return error instead of BUG_ON for dma ops on non dma devs parisc: use compat_sys_keyctl() parisc: Report SIGSEGV instead of SIGBUS when running out of stack irqchip/gic-v3: Fix out-of-bound access in gic_set_affinity cfg80211: Check if PMKID attribute is of expected size cfg80211: Validate frequencies nested in NL80211_ATTR_SCAN_FREQUENCIES cfg80211: Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx() rds: tcp: use sock_create_lite() to create the accept socket vrf: fix bug_on triggered by rx when destroying a vrf net: ipv6: Compare lwstate in detecting duplicate nexthops ipv6: dad: don't remove dynamic addresses if link is down net: handle NAPI_GRO_FREE_STOLEN_HEAD case also in napi_frags_finish() bpf: prevent leaking pointer via xadd on unpriviledged net: prevent sign extension in dev_get_stats() tcp: reset sk_rx_dst in tcp_disconnect() net: dp83640: Avoid NULL pointer dereference. ipv6: avoid unregistering inet6_dev for loopback net/phy: micrel: configure intterupts after autoneg workaround net: sched: Fix one possible panic when no destroy callback net_sched: fix error recovery at qdisc creation ANDROID: android-verity: mark dev as rw for linear target ANDROID: sdcardfs: Remove unnecessary lock ANDROID: binder: don't check prio permissions on restore. Add BINDER_GET_NODE_DEBUG_INFO ioctl UPSTREAM: cpufreq: schedutil: Trace frequency only if it has changed UPSTREAM: cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely UPSTREAM: cpufreq: schedutil: Refactor sugov_next_freq_shared() UPSTREAM: cpufreq: schedutil: Fix per-CPU structure initialization in sugov_start() UPSTREAM: cpufreq: schedutil: Pass sg_policy to get_next_freq() UPSTREAM: cpufreq: schedutil: move cached_raw_freq to struct sugov_policy UPSTREAM: cpufreq: schedutil: Rectify comment in sugov_irq_work() function UPSTREAM: cpufreq: schedutil: irq-work and mutex are only used in slow path UPSTREAM: cpufreq: schedutil: enable fast switch earlier UPSTREAM: cpufreq: schedutil: Avoid indented labels Linux 4.4.77 saa7134: fix warm Medion 7134 EEPROM read x86/mm/pat: Don't report PAT on CPUs that don't support it ext4: check return value of kstrtoull correctly in reserved_clusters_store staging: comedi: fix clean-up of comedi_class in comedi_init() staging: vt6556: vnt_start Fix missing call to vnt_key_init_table. tcp: fix tcp_mark_head_lost to check skb len before fragmenting md: fix super_offset endianness in super_1_rdev_size_change md: fix incorrect use of lexx_to_cpu in does_sb_need_changing perf tools: Use readdir() instead of deprecated readdir_r() again perf tests: Remove wrong semicolon in while loop in CQM test perf trace: Do not process PERF_RECORD_LOST twice perf dwarf: Guard !x86_64 definitions under #ifdef else clause perf pmu: Fix misleadingly indented assignment (whitespace) perf annotate browser: Fix behaviour of Shift-Tab with nothing focussed perf tools: Remove duplicate const qualifier perf script: Use readdir() instead of deprecated readdir_r() perf thread_map: Use readdir() instead of deprecated readdir_r() perf tools: Use readdir() instead of deprecated readdir_r() perf bench numa: Avoid possible truncation when using snprintf() perf tests: Avoid possible truncation with dirent->d_name + snprintf perf scripting perl: Fix compile error with some perl5 versions perf thread_map: Correctly size buffer used with dirent->dt_name perf intel-pt: Use __fallthrough perf top: Use __fallthrough tools strfilter: Use __fallthrough tools string: Use __fallthrough in perf_atoll() tools include: Add a __fallthrough statement mqueue: fix a use-after-free in sys_mq_notify() RDMA/uverbs: Check port number supplied by user verbs cmds KEYS: Fix an error code in request_master_key() ath10k: override CE5 config for QCA9377 x86/uaccess: Optimize copy_user_enhanced_fast_string() for short strings x86/tools: Fix gcc-7 warning in relocs.c gfs2: Fix glock rhashtable rcu bug USB: serial: qcserial: new Sierra Wireless EM7305 device ID USB: serial: option: add two Longcheer device ids pinctrl: sh-pfc: Update info pointer after SoC-specific init pinctrl: mxs: atomically switch mux and drive strength config pinctrl: sunxi: Fix SPDIF function name for A83T pinctrl: meson: meson8b: fix the NAND DQS pins pinctrl: sh-pfc: r8a7791: Fix SCIF2 pinmux data sysctl: report EINVAL if value is larger than UINT_MAX for proc_douintvec sysctl: don't print negative flag for proc_douintvec mac80211_hwsim: Replace bogus hrtimer clockid usb: Fix typo in the definition of Endpoint[out]Request usb: usbip: set buffer pointers to NULL after free Add USB quirk for HVR-950q to avoid intermittent device resets USB: serial: cp210x: add ID for CEL EM3588 USB ZigBee stick usb: dwc3: replace %p with %pK drm/virtio: don't leak bo on drm_gem_object_init failure tracing/kprobes: Allow to create probe with a module name starting with a digit mm: fix classzone_idx underflow in shrink_zones() bgmac: reset & enable Ethernet core before using it driver core: platform: fix race condition with driver_override fs: completely ignore unknown open flags fs: add a VALID_OPEN_FLAGS ANDROID: binder: add RT inheritance flag to node. ANDROID: binder: improve priority inheritance. ANDROID: binder: add min sched_policy to node. ANDROID: binder: add support for RT prio inheritance. ANDROID: binder: push new transactions to waiting threads. ANDROID: binder: remove proc waitqueue FROMLIST: binder: remove global binder lock FROMLIST: binder: fix death race conditions FROMLIST: binder: protect against stale pointers in print_binder_transaction FROMLIST: binder: protect binder_ref with outer lock FROMLIST: binder: use inner lock to protect thread accounting FROMLIST: binder: protect transaction_stack with inner lock. FROMLIST: binder: protect proc->threads with inner_lock FROMLIST: binder: protect proc->nodes with inner lock FROMLIST: binder: add spinlock to protect binder_node FROMLIST: binder: add spinlocks to protect todo lists FROMLIST: binder: use inner lock to sync work dq and node counts FROMLIST: binder: introduce locking helper functions FROMLIST: binder: use node->tmp_refs to ensure node safety FROMLIST: binder: refactor binder ref inc/dec for thread safety FROMLIST: binder: make sure accesses to proc/thread are safe FROMLIST: binder: make sure target_node has strong ref FROMLIST: binder: guarantee txn complete / errors delivered in-order FROMLIST: binder: refactor binder_pop_transaction FROMLIST: binder: use atomic for transaction_log index FROMLIST: binder: add more debug info when allocation fails. FROMLIST: binder: protect against two threads freeing buffer FROMLIST: binder: remove dead code in binder_get_ref_for_node FROMLIST: binder: don't modify thread->looper from other threads FROMLIST: binder: avoid race conditions when enqueuing txn FROMLIST: binder: refactor queue management in binder_thread_read FROMLIST: binder: add log information for binder transaction failures FROMLIST: binder: make binder_last_id an atomic FROMLIST: binder: change binder_stats to atomics FROMLIST: binder: add protection for non-perf cases FROMLIST: binder: remove binder_debug_no_lock mechanism FROMLIST: binder: move binder_alloc to separate file FROMLIST: binder: separate out binder_alloc functions FROMLIST: binder: remove unneeded cleanup code FROMLIST: binder: separate binder allocator structure from binder proc FROMLIST: binder: Use wake up hint for synchronous transactions. Revert "android: binder: move global binder state into context struct." sched: walt: fix window misalignment when HZ=300 ANDROID: android-base.cfg: remove CONFIG_CGROUP_DEBUG ANDROID: sdcardfs: use mount_nodev and fix a issue in sdcardfs_kill_sb Conflicts: drivers/android/binder.c drivers/net/wireless/ath/ath10k/pci.c Change-Id: Ic6f82c2ec9929733a16a03bb3b745187e002f4f6 Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
| * perf script: Use readdir() instead of deprecated readdir_r()Arnaldo Carvalho de Melo2017-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit a5e8e825bd1704c488bf6a46936aaf3b9f203d6a upstream. The readdir() function is thread safe as long as just one thread uses a DIR, which is the case in 'perf script', so, to avoid breaking the build with glibc-2.23.90 (upcoming 2.24), use it instead of readdir_r(). See: http://man7.org/linux/man-pages/man3/readdir.3.html "However, in modern implementations (including the glibc implementation), concurrent calls to readdir() that specify different directory streams are thread-safe. In cases where multiple threads must read from the same directory stream, using readdir() with external synchronization is still preferable to the use of the deprecated readdir_r(3) function." Noticed while building on a Fedora Rawhide docker container. 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> Link: http://lkml.kernel.org/n/tip-mt3xz7n2hl49ni2vx7kuq74g@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | perf tools: decoding capailitity for CoreSight tracestor-jeremiassen2016-06-20
|/ | | | Added user space perf functionality for CoreSight trace decoding.
* perf script: Enable printing of branch stackStephane Eranian2015-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch improves perf script by enabling printing of the branch stack via the 'brstack' and 'brstacksym' arguments to the field selection option -F. The option is off by default and operates only if the perf.data file has branch stack content. The branches are printed in to/from pairs. The most recent branch is printed first. The number of branch entries vary based on the underlying hardware and filtering used. The brstack prints FROM/TO addresses in raw hexadecimal format. The brstacksym prints FROM/TO addresses in symbolic form wherever possible. $ perf script -F ip,brstack 5d3000 0x401aa0/0x5d2000/M/-/-/-/0 ... $ perf script -F ip,brstacksym 4011e0 noploop+0x0/noploop+0x0/P/-/-/0 The notation F/T/M/X/A/C describes the attributes of the branch. F=from, T=to, M/P=misprediction/prediction, X=TSX, A=TSX abort, C=cycles (SKL) Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yuanfang Chen <cyfmxc@gmail.com> Link: http://lkml.kernel.org/r/1441039273-16260-5-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Introduce usage_with_options_msg()Namhyung Kim2015-10-27
| | | | | | | | | | | | | | Now usage_with_options() setup a pager before printing message so normal printf() or pr_err() will not be shown. The usage_with_options_msg() can be used to print some help message before usage strings. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445701767-12731-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Check output fields only for samplesJiri Olsa2015-10-19
| | | | | | | | | | | | | There's no need to check sampling output fields for events without perf_event_attr::sample_type field set. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> 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/1444992092-17897-51-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Make scripting_max_stack value allow for synthesized callchainsAdrian Hunter2015-09-28
| | | | | | | | | | | | | | | | | | | | perf script has a setting to set the maximum stack depth when processing callchains. The setting defaults to the hard-coded maximum definition PERF_MAX_STACK_DEPTH which is 127. It is possible, when processing instruction traces, to synthesize callchains. Synthesized callchains do not have the kernel size limitation and are whatever size the user requests, although validation presently prevents the user requested a value greater that 1024. The default value is 16. To allow for synthesized callchains, make the scripting_max_stack value at least the same size as the synthesized callchain size. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1443186956-18718-21-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf scripting python: Allow for max_stack greater than PERF_MAX_STACK_DEPTHAdrian Hunter2015-09-28
| | | | | | | | | | Use the scripting_max_stack value to allow for values greater than PERF_MAX_STACK_DEPTH. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1443186956-18718-20-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Add a setting for maximum stack depthAdrian Hunter2015-09-28
| | | | | | | | | | Add a setting for maximum stack depth in preparation for allowing for synthesized callchains. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1443186956-18718-19-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Allow time to be displayed in nanosecondsAdrian Hunter2015-09-28
| | | | | | | | | | Add option --ns to display time to 9 decimal places. That is useful in some cases, for example when using Intel PT cycle accurate mode. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1443186956-18718-6-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix use of wrong event when processing exit eventsAdrian Hunter2015-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a couple of cases the 'comm' member of 'union event' has been used instead of the correct member ('fork') when processing exit events. In the cases where it has been used incorrectly, only the 'pid' and 'tid' are affected. The 'pid' value would be correct anyway because it is in the same position in 'comm' and 'fork' events, but the 'tid' would have been incorrectly assigned from 'ppid'. However, for exit events, the kernel puts the current task in the 'ppid' and 'ttid' which is the same as the exiting task. That is 'ppid' == 'pid' and if the task is not multi-threaded, 'pid' == 'tid' i.e. the data goes wrong only when tracing multi-threaded programs. It is hard to find an example of how this would produce an error in practice. There are 3 occurences of the fix: 1. perf script is only affected if !sample_id_all which only happens on old kernels. 2. intel_pt is only affected when decoding without timestamps and would probably still decode correctly - the exit event is only used to flush out data which anyway gets flushed at the end of the session 3. intel_bts also uses the exit event to flush data which would probably not cause errors as it would get flushed at the end of the session instead Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1439888825-27708-1-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Enable printing of interrupted machine stateStephane Eranian2015-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the output of the interrupted machine state (iregs) to perf script. It presents them as NAME:VALUE so this is easy to parse during post processing. To capture the interrupted machine state: $ perf record -I .... to display iregs, use the -F option: $ perf script -F ip,iregs 40afc2 AX:0x6c5770 BX:0x1e CX:0x5f4d80a DX:0x101010101010101 SI:0x1 Signed-off-by: Stephane Eranian <eranian@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1441039273-16260-2-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Add --[no-]-demangle/--[no-]-demangle-kernelMark Drayton2015-08-28
| | | | | | | | | | | | | | Sometimes when post-processing output from `perf script` one does not want to demangle C++ symbol names. Add an option to allow this. Also add --[no-]demangle-kernel to be consistent with top/report/probe. Signed-off-by: Mark Drayton <mbd@fb.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/1440616695-32340-1-git-send-email-scientist@fb.com Signed-off-by: Yannick Brosseau <scientist@fb.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Initialize callchain_param.record_modeJiri Olsa2015-08-17
| | | | | | | | | | | | | | | | | | | Milian Wolff reported non functional DWARF unwind under perf script. The reason is that perf script does not properly configure callchain_param.record_mode, which is needed by unwind code. Stealing the code from report and leaving the place for more initialization code in a hope we could merge it with report__setup_sample_type one day. Reported-by: Milian Wolff <mail@milianw.de> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Milian Wolff <milian.wolff@kdab.com> 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/20150813071724.GA21322@krava.brq.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Support full source file paths for srclineAndi Kleen2015-08-10
| | | | | | | | | | | | | | | | | | | | | | | | | | For perf report/script srcline currently only the base file name of the source file is printed. This is a good default because it usually fits on the screen. But in some cases we want to know the full file name, for example to aggregate hits per file. In the later case we need more than the base file name to resolve file naming collisions: for example the kernel source has ~70 files named "core.c" It's also useful as input to post processing tools which want to point to the right file. Add a flag to allow full file name output. Add an option to perf report/script to enable this option. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1438986245-15191-1-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: No tracepoints? Don't call libtraceevent.Arnaldo Carvalho de Melo2015-08-04
| | | | | | | | | | | | | | | | | | The libtraceevent handler (session->tevent) is only initialized when there are tracepoints in a perf.data event list, so do not call pevent_set_function_resolve() in those cases, fixing a segfault. Reported-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xyynkucl5p4bcs13zi4i4b1f@git.kernel.org Report-link: http://lkml.kernel.org/r/20150803174113.GA20282@krava.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Add option --show-switch-eventsAdrian Hunter2015-07-23
| | | | | | | | | | | | | | | | | Add option --show-switch-events to show switch events in a similar fashion to --show-task-events and --show-mmap-events. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1437471846-26995-6-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Don't assume evsel position of tracking eventsAdrian Hunter2015-07-23
| | | | | | | | | | | | | | | | The tracking event does not have to be the first event so replace perf_evlist__first() with perf_evlist__id2evsel() which uses the event ID to find the correct evsel. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1437471846-26995-5-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Switch from perf.data's kallsyms to perf's symbol resolverArnaldo Carvalho de Melo2015-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | We were storing a copy of kallsyms inside perf.data file so that we could resolve kernel addresses to function (start, name, mod) tuples, but that can be achieved using the symbol resolving routines we have in symbols.c, and that are used elsewhere in tools/perf. So, do just like 'perf trace' did and ask libtraceevent to use perf's symbol resolution routines. The next step is to just skip whatever kallsyms data is embedded in older perf.data files and finally to stop storing kallsyms in the perf data file, as the 20-bytes build-id stored in perf.data's header is enough to find out the right symtab (be it ELF, kcore, kallsyms, etc) to use. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-d0rtb8tk9j72pz0ehw5fnp24@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf machine: Protect the machine->threads with a rwlockArnaldo Carvalho de Melo2015-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Always allow fields 'addr' and 'cpu' for auxtraceAdrian Hunter2015-05-04
| | | | | | | | | | | | | | | | If a file contains AUX area tracing data then always allow fields 'addr' and 'cpu' to be selected as options for perf script. This is necessary because AUX area decoding may synthesize events with that information. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1429903807-20559-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Add field option 'flags' to print sample flagsAdrian Hunter2015-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instruction tracing will typically have access to information about the instruction being executed for a particular ip sample. Some of that information will be available in the 'flags' member of struct perf_sample. With the addition of transactions events synthesis to Instruction Tracing options, there is a need to be able easily to see the flags because they show whether the ip is at the start, commit or abort of a tranasaction. Consequently add an option to display the flags. The flags are "bcrosyiABEx" which stand for branch, call, return, conditional, system, asynchronous, interrupt, transaction abort, trace begin, trace end, and in transaction, respectively. Example using Intel PT: perf script -fip,time,event,sym,addr,flags ... 1288.721584105: branches:u: bo 401146 main => 401152 main 1288.721584105: transactions: x 0 401164 main 1288.721584105: branches:u: bx 40117c main => 40119b main 1288.721584105: branches:u: box 4011a4 main => 40117e main 1288.721584105: branches:u: bcx 401187 main => 401094 g ... 1288.721591645: branches:u: bx 4010c4 g => 4010cb g 1288.721591645: branches:u: brx 4010cc g => 401189 main 1288.721591645: transactions: 0 4011a6 main 1288.721593199: branches:u: b 4011a9 main => 4011af main 1288.721593199: branches:u: bo 4011bc main => 40113e main 1288.721593199: branches:u: b 401150 main => 40115a main 1288.721593199: transactions: x 0 401164 main 1288.721593199: branches:u: bx 40117c main => 40119b main 1288.721593199: branches:u: box 4011a4 main => 40117e main 1288.721593199: branches:u: bcx 401187 main => 40105e f ... 1288.722284747: branches:u: brx 401093 f => 401189 main 1288.722284747: branches:u: box 4011a4 main => 40117e main 1288.722284747: branches:u: bcx 401187 main => 40105e f 1288.722285883: transactions: bA 0 401071 f 1288.722285883: branches:u: bA 401071 f => 40116a main 1288.722285883: branches:u: bE 40116a main => 0 [unknown] 1288.722297174: branches:u: bB 0 [unknown] => 40116a main ... Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1428594864-29309-26-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Add Instruction Tracing supportAdrian Hunter2015-04-29
| | | | | | | | | | | | | | | | | Add support for decoding an AUX area assuming it contains instruction tracing data. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1428594864-29309-17-git-send-email-adrian.hunter@intel.com [ Do not use -Z as an alternative to --itrace ] [ Fixed initialization of itrace_synth_opts struct fields on older gcc versions ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Support using -f to override perf.data file ownershipYunlong Song2015-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable perf script to use perf.data when it is not owned by current user or root. Change the short option name of --fields to -F to avoid confusion with --force. Example: # perf record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 28360 Apr 2 14:53 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf script File perf.data not owned by current user or root (use -f to override) # perf script -f Error: switch `f' requires a value usage: perf script [<options>] or: perf script [<options>] record <script> [<record-options>] <command> or: perf script [<options>] report <script> [script-args] or: perf script [<options>] <script> [<record-options>] <command> or: perf script [<options>] <top-script> [script-args] -f, --fields <str> comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,addr,symoff,period As shown above, the -f option does not work at all. And -f is already taken up by --fields, which makes --force confused, so change the short option name of --fields to -F like what other perf commands do (e.g. perf report -F) and use -f as the short option name of --force. After this patch: # perf script File perf.data not owned by current user or root (use -f to override) # perf script -f :41298 41298 2590086.564226: 1 cycles: ffffffff8103efc6 native_write_msr_safe ([kernel.kallsyms]) :41298 41298 2590086.564244: 1 cycles: ffffffff8103efc6 native_write_msr_safe ([kernel.kallsyms]) :41298 41298 2590086.564249: 7 cycles: ffffffff8103efc6 native_write_msr_safe ([kernel.kallsyms]) :41298 41298 2590086.564255: 176 cycles: ffffffff8103efc6 native_write_msr_safe ([kernel.kallsyms]) ls 41298 2590086.567346: 4059 cycles: ffffffff8105a592 raise_softirq ([kernel.kallsyms]) ls 41298 2590086.567353: 3717 cycles: ffffffff8105a592 raise_softirq ([kernel.kallsyms]) ls 41298 2590086.567358: 63058 cycles: ffffffff8105a592 raise_softirq ([kernel.kallsyms]) ls 41298 2590086.567448: 1706255 cycles: 406ae0 [unknown] (/usr/bin/ls) As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-8-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf scripting: No need to pass thread twice to the scripting callbacksArnaldo Carvalho de Melo2015-04-02
| | | | | | | | | | | | | | | | It is already in the addr_location, so remove the redundant 'thread' parameter from the callback signatures. Acked-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1427906210-10519-3-git-send-email-acme@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: No need to lookup thread twiceArnaldo Carvalho de Melo2015-04-02
| | | | | | | | | | | | | | | | We get the thread when we call perf_event__preprocess_sample(), no need to do it before that. Acked-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1427906210-10519-2-git-send-email-acme@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add pid/tid filtering to report and script commandsDavid Ahern2015-03-24
| | | | | | | | | | | | | | | | | | | The 'record' and 'top' tools already allow a user to specify a CSV of pids and/or tids of tasks to collect data. Add those options to the 'report' and 'script' analysis commands to only consider samples related to the given pids/tids. This is also inline with the existing comm option. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1427212361-7066-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add the bash completion for listing subsubcommands of perf scriptYunlong Song2015-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bash completion does not support listing subsubcommands for 'perf script <TAB>', so fix it. Example: Before this patch: $ perf script <TAB> $ As shown above, the subsubcommands of perf script does not come out. After this patch: $ perf script <TAB> record report As shown above, the subsubcommands of perf script can come out now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1426685758-25488-10-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf ordered_events: Shorten function signaturesArnaldo Carvalho de Melo2015-03-11
| | | | | | | | | | | | | | | By keeping pointers to machines, evlist and tool in ordered_events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0c6huyaf59mqtm2ek9pmposl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Export usage string and option table of perf recordNamhyung Kim2014-10-29
| | | | | | | | | | | | | | | | | | Those are shared with other builtin commands like kvm, script. So make it accessable from them. This is a preparation of later change that limiting possible options. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1413990949-13953-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: A thread's machine can be found via thread->mg->machineArnaldo Carvalho de Melo2014-10-29
| | | | | | | | | | | | | | | | | | | | So stop passing both machine and thread to several thread methods, reducing function signature length. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ckcy19dcp1jfkmdihdjcqdn1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Add period as a default output columnJiri Olsa2014-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding period as a default output column in script command fo hardware, software and raw events. If PERF_SAMPLE_PERIOD sample type is defined in perf.data, following will be displayed in perf script output: $ perf script ls 8034 57477.887209: 250000 task-clock: ffffffff81361d72 memset ([kernel.kallsyms]) ls 8034 57477.887464: 250000 task-clock: ffffffff816f6d92 _raw_spin_unlock_irqrestore ([kernel.kallsyms]) ls 8034 57477.887708: 250000 task-clock: ffffffff811a94f0 do_munmap ([kernel.kallsyms]) ls 8034 57477.887959: 250000 task-clock: 34080916c6 get_next_seq (/usr/lib64/libc-2.17.so) ls 8034 57477.888208: 250000 task-clock: 3408079230 _IO_doallocbuf (/usr/lib64/libc-2.17.so) ls 8034 57477.888717: 250000 task-clock: ffffffff814242c8 n_tty_write ([kernel.kallsyms]) ls 8034 57477.889285: 250000 task-clock: 3408076402 fwrite_unlocked (/usr/lib64/libc-2.17.so) Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: "Jen-Cheng(Tommy) Huang" <tommy24@gatech.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jen-Cheng(Tommy) Huang <tommy24@gatech.edu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1408977943-16594-10-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Add period data columnJiri Olsa2014-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding period data column to be displayed in perf script. It's possible to get period values using -f option, like: $ perf script -f comm,tid,time,period,ip,sym,dso :26019 26019 52414.329088: 3707 ffffffff8105443a native_write_msr_safe ([kernel.kallsyms]) :26019 26019 52414.329088: 44 ffffffff8105443a native_write_msr_safe ([kernel.kallsyms]) :26019 26019 52414.329093: 1987 ffffffff8105443a native_write_msr_safe ([kernel.kallsyms]) :26019 26019 52414.329093: 6 ffffffff8105443a native_write_msr_safe ([kernel.kallsyms]) ls 26019 52414.329442: 537558 3407c0639c _dl_map_object_from_fd (/usr/lib64/ld-2.17.so) ls 26019 52414.329442: 2099 3407c0639c _dl_map_object_from_fd (/usr/lib64/ld-2.17.so) ls 26019 52414.330181: 1242100 34080917bb get_next_seq (/usr/lib64/libc-2.17.so) ls 26019 52414.330181: 3774 34080917bb get_next_seq (/usr/lib64/libc-2.17.so) ls 26019 52414.331427: 1083662 ffffffff810c7dc2 update_curr ([kernel.kallsyms]) ls 26019 52414.331427: 360 ffffffff810c7dc2 update_curr ([kernel.kallsyms]) Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: "Jen-Cheng(Tommy) Huang" <tommy24@gatech.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jen-Cheng(Tommy) Huang <tommy24@gatech.edu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1408977943-16594-9-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Stop updating hists stats, not usedArnaldo Carvalho de Melo2014-10-09
| | | | | | | | | | | | | | | | | | | Not used here, remove to reduce perf_evsel/hists structs interaction. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zzmoo39yalrl9hzu9nc2xqml@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Modify error code for when perf_session__new() failsTaeung Song2014-09-26
| | | | | | | | | | | | | Because perf_session__new() can fail for more reasons than just ENOMEM, modify error code(ENOMEM or EINVAL) to -1. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1411522417-9917-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf scripting: Add 'flush' callback to scripting APIAdrian Hunter2014-08-22
| | | | | | | | | | | | | | | | In order to defer some output via the scripting API, there needs to be a callback after session processing but before the session is deleted. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1408129739-17368-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Allow callchains if any event samples themAdrian Hunter2014-08-13
| | | | | | | | | | | | | | | | | | | perf script was not displaying callchains if any selected event did not have PERF_SAMPLE_CALLCHAIN. Change this to disable callchains only if all selected events do not have PERF_SAMPLE_CALLCHAIN. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1406786474-9306-17-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Check recorded kernel version when finding vmlinuxNamhyung Kim2014-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently vmlinux_path__init() only tries to find vmlinux file from current directory, /boot and some canonical directories with version number of the running kernel. This can be a problem when reporting old data recorded on a kernel version not running currently. We can use --symfs option for this but it's annoying for user to do it always. As we already have the info in the perf.data file, it can be changed to use it for the search automatically. Before: $ perf report ... # Samples: 4K of event 'cpu-clock' # Event count (approx.): 1067250000 # # Overhead Command Shared Object Symbol # ........ .......... ................. .............................. 71.87% swapper [kernel.kallsyms] [k] recover_probed_instruction After: # Overhead Command Shared Object Symbol # ........ .......... ................. .................... 71.87% swapper [kernel.kallsyms] [k] native_safe_halt This requires to change signature of symbol__init() to receive struct perf_session_env *. Reported-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1407825645-24586-14-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Move call to symbol__init() after creating sessionNamhyung Kim2014-08-13
| | | | | | | | | | | | | | | | | | This is a preparation of fixing dso__load_kernel_sym(). It needs a session info before calling symbol__init(). Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1407825645-24586-11-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Fix possible memory leaksNamhyung Kim2014-08-13
| | | | | | | | | | | | | | | | | | | Some paths in perf script don't call perf_session__delete() after creating a new session. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1407825645-24586-2-git-send-email-namhyung@kernel.org [ Saved errno value before calling perror(), as pointed out by Adrian Hunter ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Rename ordered_samples bool to ordered_eventsJiri Olsa2014-08-12
| | | | | | | | | | | | | | | | | | | | The time ordering is generic for all kinds of events, so using generic name 'ordered_events' for ordered_samples bool in perf_tool struct. No functional change was intended. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-07mrqzcuhsks9wfmxrzsvemz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Expose 'addr' functions so they can be reusedAdrian Hunter2014-07-25
| | | | | | | | | | | | | | | | | | | | | | | Move some functions and functionality related to the use of 'addr' out of builtin-script so they can be reused. The moved functions are: is_bts_event() and sample_addr_correlates_sym() and a new function perf_event__preprocess_sample_addr() is created from bits of print_sample_addr(). perf_event__preprocess_sample_addr() is the equivalent of perf_event__preprocess_sample() but for 'addr' instead of 'ip'. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1406035081-14301-31-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Do not print dangling '=>' for BTSAdrian Hunter2014-07-23
| | | | | | | | | | | | | | | | | | | | | | | | When using: perf record -e branches:u -c1 usleep 1 perf script -f ip lines are displayed like: ffffffff813b23d5 => Change so that the dangling '=>' does not appear. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1406035081-14301-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Improve srcline display for BTSAdrian Hunter2014-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the order of the output to put the srcline last. It puts the branch 'from address' and 'to address' on the same line, which is how it would be without the source line reference. So it makes it consistent and much easier to read. E.g. old format: 4028fc main+0x2c (/bin/ls) /build/buildd/coreutils-8.20/src/ls.c:1269 => 40d8a0 set_program_name+0x0 (/bin/ls) new format: 4028fc main+0x2c (/bin/ls) => 40d8a0 set_program_name+0x0 (/bin/ls) /build/buildd/coreutils-8.20/src/ls.c:1269 Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1406035081-14301-7-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Introduce evlist__for_each() & friendsArnaldo Carvalho de Melo2014-01-13
| | | | | | | | | | | | | | | | | | | | | For the common evsel list traversal, so that it becomes more compact. Use the opportunity to start ditching the 'perf_' from 'perf_evlist__', as discussed, as the whole conversion touches a lot of places, lets do it piecemeal when we have the chance due to other work, like in this case. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-qnkx7dzm2h6m6uptkfk03ni6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Use zfree to help detect use after free bugsArnaldo Carvalho de Melo2013-12-27
| | | | | | | | | | | | | | | | | Several areas already used this technique, so do some audit to consistently use it elsewhere. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9sbere0kkplwe45ak6rk4a1f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf symbols: Add 'machine' member to struct addr_locationArnaldo Carvalho de Melo2013-12-19
| | | | | | | | | | | | | | | | | | | | | | The addr_location struct should fully qualify an address, and to do that it should have in it the machine where the thread was found. Thus all functions that receive an addr_location now don't need to also receive a 'machine', those functions just need to access al->machine instead, just like it does with the other parts of an address location: al->thread, al->map, etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-o51iiee7vyq4r3k362uvuylg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Add --header/--header-only optionsJiri Olsa2013-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | Currently the perf.data header is always displayed for stdio output, which is no always useful. Disabling header information by default and adding following options to control header output: --header - display header information --header-only - display header information only w/o further processing Signed-off-by: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-0ehaawv5xc83w6ag03c5hi10@git.kernel.org Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1386583370-1699-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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