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2012-07-31Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds
Merge Andrew's second set of patches: - MM - a few random fixes - a couple of RTC leftovers * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (120 commits) rtc/rtc-88pm80x: remove unneed devm_kfree rtc/rtc-88pm80x: assign ret only when rtc_register_driver fails mm: hugetlbfs: close race during teardown of hugetlbfs shared page tables tmpfs: distribute interleave better across nodes mm: remove redundant initialization mm: warn if pg_data_t isn't initialized with zero mips: zero out pg_data_t when it's allocated memcg: gix memory accounting scalability in shrink_page_list mm/sparse: remove index_init_lock mm/sparse: more checks on mem_section number mm/sparse: optimize sparse_index_alloc memcg: add mem_cgroup_from_css() helper memcg: further prevent OOM with too many dirty pages memcg: prevent OOM with too many dirty pages mm: mmu_notifier: fix freed page still mapped in secondary MMU mm: memcg: only check anon swapin page charges for swap cache mm: memcg: only check swap cache pages for repeated charging mm: memcg: split swapin charge function into private and public part mm: memcg: remove needless !mm fixup to init_mm when charging mm: memcg: remove unneeded shmem charge type ...
2012-07-31fault-injection: fix failcmd.sh warningAkinobu Mita
"fault-injection: add tool to run command with failslab or fail_page_alloc" added tools/testing/fault-injection/failcmd.sh to make it easier to inject slab/page allocation failures by fault injection. failcmd.sh prints the following warning when running with arguments for command. # ./failcmd.sh echo aaa failcmd.sh: line 209: [: echo: binary operator expected aaa This warning is caused by an improper check whether at least one parameter is left after parsing command options. Fix it by testing the length of $1 instead of $@ Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-31Merge branch 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "The biggest changes are Intel Nehalem-EX PMU uncore support, uprobes updates/cleanups/fixes from Oleg and diverse tooling updates (mostly fixes) now that Arnaldo is back from vacation." * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) uprobes: __replace_page() needs munlock_vma_page() uprobes: Rename vma_address() and make it return "unsigned long" uprobes: Fix register_for_each_vma()->vma_address() check uprobes: Introduce vaddr_to_offset(vma, vaddr) uprobes: Teach build_probe_list() to consider the range uprobes: Remove insert_vm_struct()->uprobe_mmap() uprobes: Remove copy_vma()->uprobe_mmap() uprobes: Fix overflow in vma_address()/find_active_uprobe() uprobes: Suppress uprobe_munmap() from mmput() uprobes: Uprobe_mmap/munmap needs list_for_each_entry_safe() uprobes: Clean up and document write_opcode()->lock_page(old_page) uprobes: Kill write_opcode()->lock_page(new_page) uprobes: __replace_page() should not use page_address_in_vma() uprobes: Don't recheck vma/f_mapping in write_opcode() perf/x86: Fix missing struct before structure name perf/x86: Fix format definition of SNB-EP uncore QPI box perf/x86: Make bitfield unsigned perf/x86: Fix LLC-* and node-* events on Intel SandyBridge perf/x86: Add Intel Nehalem-EX uncore support perf/x86: Fix typo in format definition of uncore PCU filter ...
2012-07-30Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds
Merge Andrew's first set of patches: "Non-MM patches: - lots of misc bits - tree-wide have_clk() cleanups - quite a lot of printk tweaks. I draw your attention to "printk: convert the format for KERN_<LEVEL> to a 2 byte pattern" which looks a bit scary. But afaict it's solid. - backlight updates - lib/ feature work (notably the addition and use of memweight()) - checkpatch updates - rtc updates - nilfs updates - fatfs updates (partial, still waiting for acks) - kdump, proc, fork, IPC, sysctl, taskstats, pps, etc - new fault-injection feature work" * Merge emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits) drivers/misc/lkdtm.c: fix missing allocation failure check lib/scatterlist: do not re-write gfp_flags in __sg_alloc_table() fault-injection: add tool to run command with failslab or fail_page_alloc fault-injection: add selftests for cpu and memory hotplug powerpc: pSeries reconfig notifier error injection module memory: memory notifier error injection module PM: PM notifier error injection module cpu: rewrite cpu-notifier-error-inject module fault-injection: notifier error injection c/r: fcntl: add F_GETOWNER_UIDS option resource: make sure requested range is included in the root range include/linux/aio.h: cpp->C conversions fs: cachefiles: add support for large files in filesystem caching pps: return PTR_ERR on error in device_create taskstats: check nla_reserve() return sysctl: suppress kmemleak messages ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION ipc: compat: use signed size_t types for msgsnd and msgrcv ipc: allow compat IPC version field parsing if !ARCH_WANT_OLD_COMPAT_IPC ipc: add COMPAT_SHMLBA support ...
2012-07-30fault-injection: add tool to run command with failslab or fail_page_allocAkinobu Mita
This adds tools/testing/fault-injection/failcmd.sh to run a command while injecting slab/page allocation failures via fault injection. Example: Run a command "make -C tools/testing/selftests/ run_tests" with injecting slab allocation failure. # ./tools/testing/fault-injection/failcmd.sh \ -- make -C tools/testing/selftests/ run_tests Same as above except to specify 100 times failures at most instead of one time at most by default. # ./tools/testing/fault-injection/failcmd.sh --times=100 \ -- make -C tools/testing/selftests/ run_tests Same as above except to inject page allocation failure instead of slab allocation failure. # env FAILCMD_TYPE=fail_page_alloc \ ./tools/testing/fault-injection/failcmd.sh --times=100 \ -- make -C tools/testing/selftests/ run_tests Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30fault-injection: add selftests for cpu and memory hotplugAkinobu Mita
This adds two selftests * tools/testing/selftests/cpu-hotplug/on-off-test.sh is testing script for CPU hotplug 1. Online all hot-pluggable CPUs 2. Offline all hot-pluggable CPUs 3. Online all hot-pluggable CPUs again 4. Exit if cpu-notifier-error-inject.ko is not available 5. Offline all hot-pluggable CPUs in preparation for testing 6. Test CPU hot-add error handling by injecting notifier errors 7. Online all hot-pluggable CPUs in preparation for testing 8. Test CPU hot-remove error handling by injecting notifier errors * tools/testing/selftests/memory-hotplug/on-off-test.sh is doing the similar thing for memory hotplug. 1. Online all hot-pluggable memory 2. Offline 10% of hot-pluggable memory 3. Online all hot-pluggable memory again 4. Exit if memory-notifier-error-inject.ko is not available 5. Offline 10% of hot-pluggable memory in preparation for testing 6. Test memory hot-add error handling by injecting notifier errors 7. Online all hot-pluggable memory in preparation for testing 8. Test memory hot-remove error handling by injecting notifier errors Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Greg KH <greg@kroah.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30Merge tag 'ktest-v3.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest Pull ktest changes from Steven Rostedt: "Set of updates for v3.6 (some fixes too) Seems that you opened the merge window the day I left for the beach. I just got back (yes us Americans only take a week vacation), and just got the last of my ktest quilt queue into git." * tag 'ktest-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Allow perl regex expressions in conditional statements ktest: Ignore errors it tests if IGNORE_ERRORS is set ktest: Reset saved min (force) configs for each test ktest: Add check for bug or panic during reboot ktest: Add MAX_MONITOR_WAIT option ktest: Fix config bisect with how make oldnoconfig works ktest: Add CONFIG_BISECT_CHECK option ktest: Add PRE_INSTALL option ktest: Add PRE/POST_KTEST and TEST options ktest: Remove commented exit
2012-07-30ktest: Allow perl regex expressions in conditional statementsSteven Rostedt
Add '=~' and '!~' to the list of allowed conditionals for DEFAULT and TEST_START section if statements. ie. TEST_START IF TEST =~ .*test$ Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-30ktest: Ignore errors it tests if IGNORE_ERRORS is setSteven Rostedt
The option IGNORE_ERRORS is used to allow a test to succeed even if a warning appears from the kernel. Sometimes kernels will produce warnings that are not associated with a test, and the user wants to test something else. The IGNORE_ERRORS works for boot up, but was not preventing test runs to succeed if the kernel produced a warning. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-30Merge branch 'slab/next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux Pull SLAB changes from Pekka Enberg: "Most of the changes included are from Christoph Lameter's "common slab" patch series that unifies common parts of SLUB, SLAB, and SLOB allocators. The unification is needed for Glauber Costa's "kmem memcg" work that will hopefully appear for v3.7. The rest of the changes are fixes and speedups by various people." * 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: (32 commits) mm: Fix build warning in kmem_cache_create() slob: Fix early boot kernel crash mm, slub: ensure irqs are enabled for kmemcheck mm, sl[aou]b: Move kmem_cache_create mutex handling to common code mm, sl[aou]b: Use a common mutex definition mm, sl[aou]b: Common definition for boot state of the slab allocators mm, sl[aou]b: Extract common code for kmem_cache_create() slub: remove invalid reference to list iterator variable mm: Fix signal SIGFPE in slabinfo.c. slab: move FULL state transition to an initcall slab: Fix a typo in commit 8c138b "slab: Get rid of obj_size macro" mm, slab: Build fix for recent kmem_cache changes slab: rename gfpflags to allocflags slub: refactoring unfreeze_partials() slub: use __cmpxchg_double_slab() at interrupt disabled place slab/mempolicy: always use local policy from interrupt context slab: Get rid of obj_size macro mm, sl[aou]b: Extract common fields from struct kmem_cache slab: Remove some accessors slab: Use page struct fields instead of casting ...
2012-07-26Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull ACPI & power management update from Len Brown: "Re-write of the turbostat tool. lower overhead was necessary for measuring very large system when they are very idle. IVB support in intel_idle It's what I run on my IVB, others should be able to also:-) ACPICA core update We have found some bugs due to divergence between Linux and the upstream ACPICA base. Most of these patches are to reduce that divergence to reduce the risk of future bugs. Some cpuidle updates, mostly for non-Intel More will be coming, as they depend on this part. Some thermal management changes needed by non-ACPI systems. Some _OST (OS Status Indication) updates for hot ACPI hot-plug." * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (51 commits) Thermal: Documentation update Thermal: Add Hysteresis attributes Thermal: Make Thermal trip points writeable ACPI/AC: prevent OOPS on some boxes due to missing check power_supply_register() return value check tools/power: turbostat: fix large c1% issue tools/power: turbostat v2 - re-write for efficiency ACPICA: Update to version 20120711 ACPICA: AcpiSrc: Fix some translation issues for Linux conversion ACPICA: Update header files copyrights to 2012 ACPICA: Add new ACPI table load/unload external interfaces ACPICA: Split file: tbxface.c -> tbxfload.c ACPICA: Add PCC address space to space ID decode function ACPICA: Fix some comment fields ACPICA: Table manager: deploy new firmware error/warning interfaces ACPICA: Add new interfaces for BIOS(firmware) errors and warnings ACPICA: Split exception code utilities to a new file, utexcep.c ACPI: acpi_pad: tune round_robin_time ACPICA: Update to version 20120620 ACPICA: Add support for implicit notify on multiple devices ACPICA: Update comments; no functional change ...
2012-07-26Merge tag 'usb-3.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB patches from Greg Kroah-Hartman: "Here's the big USB patch set for the 3.6-rc1 merge window. Lots of little changes in here, primarily for gadget controllers and drivers. There's some scsi changes that I think also went in through the scsi tree, but they merge just fine. All of these patches have been in the linux-next tree for a while now. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up trivial conflicts in include/scsi/scsi_device.h (same libata conflict that Jeff had already encountered) * tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits) usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams usb: Add quirk detection based on interface information usb: s3c-hsotg: Add header file protection macros in s3c-hsotg.h USB: ehci-s5p: Add vbus setup function to the s5p ehci glue layer USB: add USB_VENDOR_AND_INTERFACE_INFO() macro USB: notify phy when root hub port connect change USB: remove 8 bytes of padding from usb_host_interface on 64 bit builds USB: option: add ZTE MF821D USB: sierra: QMI mode MC7710 moved to qcserial USB: qcserial: adding Sierra Wireless devices USB: qcserial: support generic Qualcomm serial ports USB: qcserial: make probe more flexible USB: qcserial: centralize probe exit path USB: qcserial: consolidate usb_set_interface calls USB: ehci-s5p: Add support for device tree USB: ohci-exynos: Add support for device tree USB: ehci-omap: fix compile failure(v1) usb: host: tegra: pass correct pointer in ehci_setup() USB: ehci-fsl: Update ifdef check to work on 64-bit ppc USB: serial: keyspan: Removed unrequired parentheses. ...
2012-07-26Merge branches 'acpi_pad', 'acpica', 'apei-bugzilla-43282', 'battery', ↵Len Brown
'cpuidle-coupled', 'cpuidle-tweaks', 'intel_idle-ivb', 'ost', 'red-hat-bz-772730', 'thermal', 'thermal-spear' and 'turbostat-v2' into release
2012-07-25perf annotate: Prevent overflow in size calculationCody Schafer
A large enough symbol size causes an overflow in the size parameter to the histogram allocation, leading to a segfault in symbol__inc_addr_samples later on when this histogram is accessed. In the case of being called via perf-report, this returns back and gracefully ignores the sample, eventually ignoring the chained return value of perf_session_deliver_event in flush_sample_queue. Signed-off-by: Cody Schafer <cody@linux.vnet.ibm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1342753525-4521-1-git-send-email-cody@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25tools lib traceevent: Ignore TRACEEVENT-CFLAGS fileNamhyung Kim
The TRACEEVENT-CFLAGS file is used to detect any change on compiler flags. Just ignore it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1341559297-25725-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25tools lib traceevent: Detect build environment changesNamhyung Kim
Cross compiling perf requires setting ARCH and CROSS_COMPILE variables, but libtraceevent couldn't detect the changes so it ends up believing no recompiling is required. Thus the linker failed like: LINK perf ../lib/traceevent//libtraceevent.a: member ../lib/traceevent//libtraceevent.a(event-parse.o) in archive is not an object collect2: ld returned 1 exit status make: *** [perf] Error 1 This patch fixes this by adding TRACEEVENT-CFLAGS file like PERF-CFLAGS to track those changes. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1341559297-25725-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf tools: Fix build error with bison 2.6Kirill A. Shutemov
Bison 2.6 started to generate parse_events_parse() declaration in header. In this case we have redundant redeclaration: util/parse-events.c:29:5: error: redundant redeclaration of ‘parse_events_parse’ [-Werror=redundant-decls] In file included from util/parse-events.c:14:0: util/parse-events-bison.h:99:5: note: previous declaration of ‘parse_events_parse’ was here cc1: all warnings being treated as errors Let's disable -Wredundant-decls for util/parse-events.c since it includes header we can't control. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Cc: Ingo Molnar <mingo@redhat.com> 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/r/20120723210407.GA25186@shutemov.name Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf tools: use XSI-complaint version of strerror_r() instead of GNU-specificKirill A. Shutemov
Perf uses GNU-specific version of strerror_r(). The GNU-specific strerror_r() returns a pointer to a string containing the error message. This may be either a pointer to a string that the function stores in buf, or a pointer to some (immutable) static string (in which case buf is unused). In glibc-2.16 GNU version was marked with attribute warn_unused_result. It triggers few warnings in perf: util/target.c: In function ‘perf_target__strerror’: util/target.c:114:13: error: ignoring return value of ‘strerror_r’, declared with attribute warn_unused_result [-Werror=unused-result] ui/browsers/hists.c: In function ‘hist_browser__dump’: ui/browsers/hists.c:981:13: error: ignoring return value of ‘strerror_r’, declared with attribute warn_unused_result [-Werror=unused-result] They are bugs. Let's fix strerror_r() usage. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Acked-by: Ulrich Drepper <drepper@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/20120723210654.GA25248@shutemov.name [ committer note: s/assert/BUG_ON/g ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf tools: Make the breakpoint events sample period default to 1Jovi Zhang
There have one problem about hw_breakpoint perf event, as watched, the events reported to userspace is not correctly, sometime one trigger bp_event report several events, sometime bp_event cannot go through to user. The root cause is attr->freq is 1 passed to kernel defaultly in bp events, this make kernel calculate event period not as expect, make sample period to 1 will change attr->freq to 0, to fix this problem. This patch is similar with commit f92128 about tracepoint events: perf: Make the trace events sample period default to 1 Signed-off-by: Jovi Zhang <bookjovi@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/CACV3sbLF8taiCq_VYW-sgRJyupeMzg58C7ZXfMe3xZUiH_Mx6w@mail.gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf test: Add dso data caching testsJiri Olsa
Adding automated test for DSO data reading. Testing raw/cached reads from different file/cache locations. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Arun Sharma <asharma@fb.com> Cc: Benjamin Redelings <benjamin.redelings@nescent.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/1342959280-5361-18-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf symbols: Add dso data cachingJiri Olsa
Adding dso data caching so we don't need to open/read/close, each time we want dso data. The DSO data caching affects following functions: dso__data_read_offset dso__data_read_addr Each DSO read tries to find the data (based on offset) inside the cache. If it's not present it fills the cache from file, and returns the data. If it is present, data are returned with no file read. Each data read is cached by reading cache page sized/aligned amount of DSO data. The cache page size is hardcoded to 4096. The cache is using RB tree with file offset as a sort key. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Arun Sharma <asharma@fb.com> Cc: Benjamin Redelings <benjamin.redelings@nescent.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/1342959280-5361-17-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf symbols: Add interface to read DSO image dataJiri Olsa
Adding following interface for DSO object to allow reading of DSO image data: dso__data_fd - opens DSO and returns file descriptor Binary types are used to locate/open DSO in following order: DSO_BINARY_TYPE__BUILD_ID_CACHE DSO_BINARY_TYPE__SYSTEM_PATH_DSO In other word we first try to open DSO build-id path, and if that fails we try to open DSO system path. dso__data_read_offset - reads DSO data from specified offset dso__data_read_addr - reads DSO data from specified address/map. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Arun Sharma <asharma@fb.com> Cc: Benjamin Redelings <benjamin.redelings@nescent.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/1342959280-5361-11-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf symbols: Factor DSO symtab types to generic binary typesJiri Olsa
Adding interface to access DSOs so it could be used from another place. New DSO binary type is added - making current SYMTAB__* types more general: DSO_BINARY_TYPE__* = SYMTAB__* Following function is added to return path based on the specified binary type: dso__binary_type_file Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Arun Sharma <asharma@fb.com> Cc: Benjamin Redelings <benjamin.redelings@nescent.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/1342959280-5361-10-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf hists: Print newline between hists callchainsFrederic Weisbecker
Tiny cosmetic fix. The lack of a newline between hists callchains was looking slightly messy. Before: 0.24% swapper [kernel.kallsyms] [k] _raw_spin_lock_irq | --- _raw_spin_lock_irq run_timer_softirq __do_softirq call_softirq do_softirq irq_exit smp_apic_timer_interrupt apic_timer_interrupt default_idle amd_e400_idle cpu_idle start_secondary 0.10% perf [kernel.kallsyms] [k] lock_is_held | --- lock_is_held __might_sleep mutex_lock_nested perf_event_for_each_child perf_ioctl do_vfs_ioctl sys_ioctl system_call_fastpath ioctl cmd_record run_builtin main __libc_start_main After: 0.24% swapper [kernel.kallsyms] [k] _raw_spin_lock_irq | --- _raw_spin_lock_irq run_timer_softirq __do_softirq call_softirq do_softirq irq_exit smp_apic_timer_interrupt apic_timer_interrupt default_idle amd_e400_idle cpu_idle start_secondary 0.10% perf [kernel.kallsyms] [k] lock_is_held | --- lock_is_held __might_sleep mutex_lock_nested perf_event_for_each_child perf_ioctl do_vfs_ioctl sys_ioctl system_call_fastpath ioctl cmd_record run_builtin main __libc_start_main Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1342631456-7233-3-git-send-email-fweisbec@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf tools: Fix trace events storms due to weight demuxFrederic Weisbecker
Trace events have a period (weight) of 1 by default. This can be overriden on events definition by using the __perf_count() macro. For example, the sched_stat_runtime() is weighted with the runtime of the task that fired the event. By default, perf handles such weighted event by dividing it into individual events carrying a weight of 1. For example if sched_stat_runtime is fired and the task has run 5000000 nsecs, perf divides it into 5000000 events in the buffer. This behaviour makes weighted events unusable because they quickly fullfill the buffers and we lose most events. The commit 5d81e5cfb37a174e8ddc0413e2e70cdf05807ace ("events: Don't divide events if it has field period") solves this problem by sending only one event when PERF_SAMPLE_PERIOD flag is set. The weight is carried in the sample itself such that we don't need to demultiplex it anymore. This patch provides the last missing piece to use this feature by setting PERF_SAMPLE_PERIOD from perf tools when we deal with trace events. Before: $ ./perf record -e sched:* -a sleep 1 [ perf record: Woken up 3 times to write data ] [ perf record: Captured and wrote 1.619 MB perf.data (~70749 samples) ] Warning: Processed 16909 events and lost 1 chunks! Check IO/CPU overload! $ ./perf script perf 1894 [003] 824.898327: sched_migrate_task: comm=perf pid=1898 prio=120 orig_cpu=2 dest_cpu=0 perf 1894 [003] 824.898335: sched_stat_sleep: comm=perf pid=1898 delay=113179500 [ns] perf 1894 [003] 824.898336: sched_stat_sleep: comm=perf pid=1898 delay=113179500 [ns] perf 1894 [003] 824.898337: sched_stat_sleep: comm=perf pid=1898 delay=113179500 [ns] perf 1894 [003] 824.898338: sched_stat_sleep: comm=perf pid=1898 delay=113179500 [ns] perf 1894 [003] 824.898339: sched_stat_sleep: comm=perf pid=1898 delay=113179500 [ns] perf 1894 [003] 824.898340: sched_stat_sleep: comm=perf pid=1898 delay=113179500 [ns] perf 1894 [003] 824.898341: sched_stat_sleep: comm=perf pid=1898 delay=113179500 [ns] [...] After: $ ./perf record -e sched:* -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.074 MB perf.data (~3228 samples) ] $ ./perf script perf 1461 [000] 554.286957: sched_migrate_task: comm=perf pid=1465 prio=120 orig_cpu=3 dest_cpu=1 perf 1461 [000] 554.286964: sched_stat_sleep: comm=perf pid=1465 delay=133047190 [ns] perf 1461 [000] 554.286967: sched_wakeup: comm=perf pid=1465 prio=120 success=1 target_cpu=001 swapper 0 [001] 554.286976: sched_stat_wait: comm=perf pid=1465 delay=0 [ns] swapper 0 [001] 554.286983: sched_switch: prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=perf [...] Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1342631456-7233-1-git-send-email-fweisbec@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf hists: Return correct number of characters printed in callchainFrederic Weisbecker
Include the omitted number of characters printed for the first entry. Not that it really matters because nobody seem to care about the number of printed characters for now. But just in case. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1342631456-7233-2-git-send-email-fweisbec@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf tools: Dump exclude_{guest,host}, precise_ip header info tooDavid Ahern
Adds the attributes to the event line in the header dump. From: event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, ... to event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 0, precise_ip = 0, ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1342826756-64663-8-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf kvm: Limit repetitive guestmount message to once per directoryDavid Ahern
After 7ed97ad use of the guestmount option without a subdir for *each* VM generates an error message for each sample related to that VM. Once per VM is enough. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1342826756-64663-7-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf kvm: Fix bug resolving guest kernel symsDavid Ahern
Guest kernel symbols are not resolved despite passing the information needed to resolve them. e.g., perf kvm --guest --guestmount=/tmp/guest-mount record -a -- sleep 1 perf kvm --guest --guestmount=/tmp/guest-mount report --stdio 36.55% [guest/11399] [unknown] [g] 0xffffffff81600bc8 33.19% [guest/10474] [unknown] [g] 0x00000000c0116e00 30.26% [guest/11094] [unknown] [g] 0xffffffff8100a288 43.69% [guest/10474] [unknown] [g] 0x00000000c0103d90 37.38% [guest/11399] [unknown] [g] 0xffffffff81600bc8 12.24% [guest/11094] [unknown] [g] 0xffffffff810aa91d 6.69% [guest/11094] [unknown] [u] 0x00007fa784d721c3 which is just pathetic. After a maddening 2 days sifting through perf minutia I found it -- id_hdr_size is not initialized for guest machines. This shows up on the report side as random garbage for the cpu and timestamp, e.g., 29816 7310572949125804849 0x1ac0 [0x50]: PERF_RECORD_MMAP ... That messes up the sample sorting such that synthesized guest maps are processed last. With this patch you get a much more helpful report: 12.11% [guest/11399] [guest.kernel.kallsyms.11399] [g] irqtime_account_process_tick 10.58% [guest/11399] [guest.kernel.kallsyms.11399] [g] run_timer_softirq 6.95% [guest/11094] [guest.kernel.kallsyms.11094] [g] printk_needs_cpu 6.50% [guest/11094] [guest.kernel.kallsyms.11094] [g] do_timer 6.45% [guest/11399] [guest.kernel.kallsyms.11399] [g] idle_balance 4.90% [guest/11094] [guest.kernel.kallsyms.11094] [g] native_read_tsc ... v2: - changed rbtree walk to use rb_first per Namhyung's suggestion Tested-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1342826756-64663-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf kvm: Guest userspace samples should not be lumped with host uspaceDavid Ahern
e.g., perf kvm --host --guest report -i perf.data --stdio -D shows: 1 599127912065356 0x143b8 [0x48]: PERF_RECORD_SAMPLE(IP, 5): 5671/5676: 0x7fdf95a061c0 period: 1 addr: 0 ... chain: nr:2 ..... 0: ffffffffffffff80 ..... 1: fffffffffffffe00 ... thread: qemu-kvm:5671 ...... dso: <not found> (IP, 5) means sample in guest userspace. Those samples should not be lumped into the VMM's host thread. i.e, the report output: 56.86% qemu-kvm [unknown] [u] 0x00007fdf95a061c0 With this patch the output emphasizes it is a guest userspace hit: 56.86% [guest/5671] [unknown] [u] 0x00007fdf95a061c0 Looking at 3 VMs (2 64-bit, 1 32-bit) with each running a CPU bound process (openssl speed), perf report currently shows: 93.84% 117726 qemu-kvm [unknown] [u] 0x00007fd7dcaea8e5 which is wrong. With this patch you get: 31.50% 39258 [guest/18772] [unknown] [u] 0x00007fd7dcaea8e5 31.50% 39236 [guest/11230] [unknown] [u] 0x0000000000a57340 30.84% 39232 [guest/18395] [unknown] [u] 0x00007f66f641e107 Tested-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1342826756-64663-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25perf kvm: Set name for VM process in guest machineDavid Ahern
COMM events are not generated in the context of a guest machine, so the thread name is never set for the VMM process. For example, the qemu-kvm name applies to the process in the host machine, not the guest machine. So, samples for guest machines are currently displayed as: 99.67% :5671 [unknown] [g] 0xffffffff81366b41 where 5671 is the pid of the VMM. With this patch the samples in the guest machine are shown as: 18.43% [guest/5671] [unknown] [g] 0xffffffff810d68b7 Tested-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1342826756-64663-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-23perf symbols: Add machine id to modules debug messageDavid Ahern
Current debug message is: Problems creating module maps, continuing anyway... When running multiple VMs it would be nice to know which machine the message is referring to: $ perf kvm --guest --guestmount=/tmp/guest-mount record -av -- sleep 10 Problems creating module maps for guest 6613, continuing anyway... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1342826756-64663-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-20ktest: Reset saved min (force) configs for each testSteven Rostedt
The min configs are saved in a perl hash called force_configs, and this hash is used to add configs to the .config file. But it was not being reset between tests and a min config from a previous test would affect the min config of the next test causing undesirable results. Reset the force_config hash at the start of each test. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19tools/power: turbostat: fix large c1% issueLen Brown
Under some conditions, c1% was displayed as very large number, much higher than 100%. c1% is not measured, it is derived as "that, which is left over" from other counters. However, the other counters are not collected atomically, and so it is possible for c1% to be calaculagted as a small negative number -- displayed as very large positive. There was a check for mperf vs tsc for this already, but it needed to also include the other counters that are used to calculate c1. Signed-off-by: Len Brown <len.brown@intel.com>
2012-07-19tools/power: turbostat v2 - re-write for efficiencyLen Brown
Measuring large profoundly-idle configurations requires turbostat to be more lightweight. Otherwise, the operation of turbostat itself can interfere with the measurements. This re-write makes turbostat topology aware. Hardware is accessed in "topology order". Redundant hardware accesses are deleted. Redundant output is deleted. Also, output is buffered and local RDTSC use replaces remote MSR access for TSC. From a feature point of view, the output looks different since redundant figures are absent. Also, there are now -c and -p options -- to restrict output to the 1st thread in each core, and the 1st thread in each package, respectively. This is helpful to reduce output on big systems, where more detail than the "-s" system summary is desired. Finally, periodic mode output is now on stdout, not stderr. Turbostat v2 is also slightly more robust in handling run-time CPU online/offline events, as it now checks the actual map of on-line cpus rather than just the total number of on-line cpus. Signed-off-by: Len Brown <len.brown@intel.com>
2012-07-19ktest: Add check for bug or panic during rebootSteven Rostedt
Usually the target is booted into a dependable kernel when a test starts. The test will install the test kernel and reboot the box. But there may be a time that the kernel is running an unreliable kernel and the reboot may crash. Have ktest detect crashes on a reboot and force a power-cycle instead. This can usually happen if a test kernel was installed to run manual tests, but the user forgot to reboot to the known good kernel. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19ktest: Add MAX_MONITOR_WAIT optionSteven Rostedt
If the console is constantly outputting content, this can cause ktest to get stuck waiting on the monitor to settle down. The option MAX_MONITOR_WAIT is the maximum time (in seconds) for ktest to wait for the console to flush. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19ktest: Fix config bisect with how make oldnoconfig worksSteven Rostedt
With a name like 'oldnoconfig' one may think that the config generated would disable all configs that were not defined (selecting "no" for all options). But this is not the case. It selects the default. If a config has a 'default y', then it is added if not specified. This broke the config bisect, because options not specified by a config will just use the default, where it expected to turn off. This caused an option to be enabled that disabled an option that would break the build. The end result was that we never found the bad config at the end of the test. Instead of using 'make oldnoconfig', ktest now builds the options it expects enabled and disabled. When it turns off an option, it will no longer remove it, but actually set it to: # CONFIG_FOO is not set. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19ktest: Add CONFIG_BISECT_CHECK optionSteven Rostedt
The config-bisect can take a bad config and bisect it down to find out what config actually breaks the config. But as all tests will apply a minconfig (defined by a user) to apply before booting, it is possible that the minconfig could actually make the bad config work (minconfigs can disable configs). The end result is that the config bisect test will not find a config that breaks. This can be rather frustrating to the user. The CONFIG_BISECT_CHECK option, when set to 1, will make sure that the bad config (with the minconfig applied) still fails before trying to bisect. And yes, I did get burned by this. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19ktest: Add PRE_INSTALL optionSteven Rostedt
Add the PRE_INSTALL option that will allow a user to specify a shell command to be executed before the install operation executes. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19ktest: Add PRE/POST_KTEST and TEST optionsSteven Rostedt
In order to let the user add commands before and after ktest runs, the PRE_KTEST and POST_KTEST options are defined. They hold shell commands that will execute befor ktest runs its first test, as well as when it completed its last test. The PRE_TEST and POST_TEST will be run befor and after (respectively) for a given test. They can either be global (done for all tests) or defined by a single test. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19ktest: Remove commented exitSteven Rostedt
A debug 'exit' was left in ktest.pl. Remove it. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-18Merge branch 'linus' into perf/coreIngo Molnar
Pick up the latest ring-buffer fixes, before applying a new fix. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-07-16Merge 3.5-rc7 into usb-nextGreg Kroah-Hartman
This resolves the merge issue with the drivers/usb/host/ehci-omap.c file. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-06Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core perf/core improvements and fixes: - Preparatory patches to use hw events in PMU syntax, from Jiri Olsa - Remaining backport of trace-cmd's libparseevent, from Namhyung Kim - Fix libtraceevent 'clean' make target, from Namhyung Kim - Teach ctags about libtraceevent error codes, from Namhyung Kim - Fix libtraceevent dependency files usage, from Namhyung Kim - Support hex number pretty printing in libtraceevent, fixing kvm output, from Namhyung Kim - Kill some die() usage in libtraceevent, from Namhyung Kim - Improve support for hw breakpoints parsing/pretty printing/testing, from Jiri Olsa - Clarify perf bench option naming, from Hitoshi Mitake - Look for ".note" ELF notes too, used in the kernel vdso, from Jiri Olsa - Fix internal PMU list usage, removing leak, from Robert Richter Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-07-05Merge branch 'perf/urgent' into perf/coreIngo Molnar
Merge this branch to pick up a fixlet and to update to a more recent base. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-07-05Merge tag 'libtraceevent-core-for-acme' of ↵Arnaldo Carvalho de Melo
git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf into perf/core libtraceevent/core improvements * Remaining backport of trace-cmd's libparseevent Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-05perf tools: Split event symbols arrays to hw and sw partsJiri Olsa
It'll be convenient in upcoming patch to access hw event symbols strings via enum perf_hw_id indexes. In order not to duplicate the data, creating two separate arrays: event_symbols_hw for enum perf_hw_id events event_symbols_sw for enum perf_sw_ids events Changing the current event list code to follow the change. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> 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/1341352848-11833-7-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-05perf tools: Split out PE_VALUE_SYM parsing token to SW and HW tokensJiri Olsa
Spliting PE_VALUE_SYM token to PE_VALUE_SYM_HW and PE_VALUE_SYM_SW tokens to separate hardware and software symbols. This will be useful in upcomming patch where we want to be able to parse out only hardware events. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> 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/1341352848-11833-6-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-05perf tools: Add empty rule for new line in event syntax parsingJiri Olsa
The flex generator prints out each input character that is ignored by lex rules. Since the alias processing, we can have '\n' characters on input. We need to assign empty rule to it, so it's not printed out. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> 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/1341352848-11833-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>