aboutsummaryrefslogtreecommitdiff
path: root/tools
AgeCommit message (Collapse)AuthorFilesLines
2014-08-04Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds19-28/+26
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU changes from Ingo Molar: "The main changes: - torture-test updates - callback-offloading changes - maintainership changes - update RCU documentation - miscellaneous fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) rcu: Allow for NULL tick_nohz_full_mask when nohz_full= missing rcu: Fix a sparse warning in rcu_report_unblock_qs_rnp() rcu: Fix a sparse warning in rcu_initiate_boost() rcu: Fix __rcu_reclaim() to use true/false for bool rcu: Remove CONFIG_PROVE_RCU_DELAY rcu: Use __this_cpu_read() instead of per_cpu_ptr() rcu: Don't use NMIs to dump other CPUs' stacks rcu: Bind grace-period kthreads to non-NO_HZ_FULL CPUs rcu: Simplify priority boosting by putting rt_mutex in rcu_node rcu: Check both root and current rcu_node when setting up future grace period rcu: Allow post-unlock reference for rt_mutex rcu: Loosen __call_rcu()'s rcu_head alignment constraint rcu: Eliminate read-modify-write ACCESS_ONCE() calls rcu: Remove redundant ACCESS_ONCE() from tick_do_timer_cpu rcu: Make rcu node arrays static const char * const signal: Explain local_irq_save() call rcu: Handle obsolete references to TINY_PREEMPT_RCU rcu: Document deadlock-avoidance information for rcu_read_unlock() scripts: Teach get_maintainer.pl about the new "R:" tag rcu: Update rcu torture maintainership filename patterns ...
2014-08-04Merge tag 'ktest-v3.17' of ↵Linus Torvalds2-349/+297
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest Pull config-bisect changes from Steven Rostedt: "The big change here is the rewrite of config-bisect. The old way never worked properly as it assumed the bad config was a subset of the good config, and just found the config that would break the build. The new way does a diff of the bad config verses the good config and makes the similar until it finds that one config works and the other does not and reports the config that makes that difference. The two configs do not need to be related. It is much more useful now: * tag 'ktest-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Update documentation on config_bisect ktest: Add the config bisect manual back ktest: Remove unused functions ktest: Put back in the CONFIG_BISECT_CHECK ktest: Rewrite the config-bisect to actually work ktest: Some cleanup for improving readability ktest: add 2nd parameter of run_command() to set the redirect target file
2014-08-02perf kvm stat: Properly show submicrosecond timesChristian Borntraeger1-4/+4
For lots of exits the min time (and sometimes max) is 0 or 1. Lets increase the accurancy similar to what the average field alread does. Signed-off-by: Christian Borntraeger <[email protected]> Acked-by: David Ahern <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-31mnt: Add tests for unprivileged remount cases that have found to be faultyEric W. Biederman3-0/+260
Kenton Varda <[email protected]> discovered that by remounting a read-only bind mount read-only in a user namespace the MNT_LOCK_READONLY bit would be cleared, allowing an unprivileged user to the remount a read-only mount read-write. Upon review of the code in remount it was discovered that the code allowed nosuid, noexec, and nodev to be cleared. It was also discovered that the code was allowing the per mount atime flags to be changed. The first naive patch to fix these issues contained the flaw that using default atime settings when remounting a filesystem could be disallowed. To avoid this problems in the future add tests to ensure unprivileged remounts are succeeding and failing at the appropriate times. Cc: [email protected] Acked-by: Serge E. Hallyn <[email protected]> Signed-off-by: "Eric W. Biederman" <[email protected]>
2014-07-31perf symbols: Make sure --symfs usage includes the path separatorArnaldo Carvalho de Melo5-23/+42
Minchan reported that perf failed to load vmlinux if --symfs argument doesn't end with '/' character. Fix it by making sure that the '/' path separator is used when composing pathnames with a --symfs provided directory name. Reported-by: Minchan Kim <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-31perf evlist: Don't run workload if not told toArnaldo Carvalho de Melo1-2/+18
The perf_evlist__prepare_workload() method works by forking and then waiting on a fd that must be written to to allow the workload to be exec()ed. But if the tool calling it fails to, say, set up the events with which it wants to sample the workload for, it will not call perf_evlist__start_workload(), but even in this case the workload ended up running: [acme@zoo linux]$ trace /bin/echo workload ends up running, it should not... Couldn't mmap the events: Operation not permitted workload ends up running, it should not... [acme@zoo linux]$ So check if at least one byte was written before letting exec() be called. Now the expected behaviour: [acme@zoo linux]$ trace /bin/echo workload ends up running, it should not... Couldn't mmap the events: Operation not permitted [acme@zoo linux]$ Acked-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-30perf tools: Fix arm64 build errorMark Salter1-0/+2
I'm seeing the following build error on arm64: In file included from util/event.c:3:0: util/event.h:95:17: error: 'PERF_REGS_MAX' undeclared here (not in a function) u64 cache_regs[PERF_REGS_MAX]; ^ This patch adds a PERF_REGS_MAX definition for arm64. Signed-off-by: Mark Salter <[email protected]> Acked-by: Jean Pihet <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jean Pihet <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-30cpupower: Remove redundant error checkPeter Senna Tschudin1-6/+5
Remove double checks, and move the call to print_error to the first check. Replace break by return, and return 0 on success. The simplified version of the coccinelle semantic patch that fixes this issue is as follows: // <smpl> @@ expression E; identifier pr; expression list es; @@ for(...;...;...){ ... - if (E) break; + if (E){ + pr(es); + break; + } ... } - if(E) pr(es); // </smpl> Signed-off-by: Peter Senna Tschudin <[email protected]> Signed-off-by: Thomas Renninger <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-07-30cpupower: bench: parse.c: Fix several minor errorsRickard Strandqvist1-18/+21
Resolved several minor errors in prepare_config() and made some additional improvements. Earlier, the risk of file stream that was not closed. Misuse of strncpy, and the use of strncmp with strlen that makes it pointless. I also check that sscanf has been successful, otherwise continue to the next line. And minimized the use of magic numbers. This was found using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <[email protected]> Signed-off-by: Thomas Renninger <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-07-30cpupower: mperf monitor: Correct use of ! and &Himangi Saraogi1-1/+1
In commit ae91d60ba88ef0bdb1b5e9b2363bd52fc45d2af7, a bug was fixed that involved converting !x & y to !(x & y). The code below shows the same pattern, and thus should perhaps be fixed in the same way. The Coccinelle semantic patch that makes this change is as follows: // <smpl> @@ expression E1,E2; @@ ( !E1 & !E2 | - !E1 & E2 + !(E1 & E2) ) // </smpl> Signed-off-by: Himangi Saraogi <[email protected]> Signed-off-by: Thomas Renninger <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-07-28Revert "perf tools: Fix jump label always changing during tracing"Jiri Olsa1-7/+2
This reverts commit deaff8b659cf4d34181c087b8cdf74f1eb17b02b. This commit makes CLOEXEC feature undetected for normal users, because per-cpu events are priviledged. Reported-by: Peter Zijlstra <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Jiri Olsa <[email protected]>
2014-07-28perf tools: Fix perf usage string leftoverJiri Olsa1-1/+1
Fixing perf usage string leftover pointed out by Namhyung. Reported-by: Namhyung Kim <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Jiri Olsa <[email protected]>
2014-07-28Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar29-115/+470
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: Infrastructure changes: o More prep work to support Intel PT: (Adrian Hunter) - Polishing 'script' BTS output - 'inject' can specify --kallsym - VDSO is per machine, not a global var - Expose data addr lookup functions previously private to 'script' - Large mmap fixes in events processing o Fix build on gcc 4.4.7 (Arnaldo Carvalho de Melo) o Event ordering fixes (Jiri Olsa) o Include standard stringify macros in power pc code (Sukadev Bhattiprolu) Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2014-07-28Merge tag 'v3.16-rc7' into perf/core, to merge in the latest fixes before ↵Ingo Molnar11-27/+62
applying new changes Signed-off-by: Ingo Molnar <[email protected]>
2014-07-28selftests/powerpc: Add test of per-event excludesMichael Ellerman2-1/+115
Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Add a routine for retrieving an AUXV entryMichael Ellerman2-0/+49
Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Add cycles test with MMCR2 handlingMichael Ellerman2-1/+93
Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Dump MMCR2 as part of the EBB HW stateMichael Ellerman1-4/+6
Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Count more instructions & use decimalMichael Ellerman1-8/+14
Although we expect some small discrepancies for very large counts, we seem to be able to count up to 64 billion instructions without too much skew, so do so. Also switch to using decimals for the instruction counts. This just makes it easier to visually compare the expected vs actual values, as well as the raw result from instructions. Before: instructions: result 68719476753 running/enabled 13101961654 cycles: result 38077343785 running/enabled 13101725752 Looped for 68719476736 instructions, overhead 17 Expected 68719476753 Actual 68719476753 Delta 0, 0.000000% success: count_instructions After: instructions: result 64000000016 running/enabled 12197599964 cycles: result 35412471674 running/enabled 12197534110 Looped for 64000000000 instructions, overhead 16 Expected 64000000016 Actual 64000000016 Delta 0, 0.000000% success: count_instructions Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Count instructions under scheduler pressureMichael Ellerman2-2/+8
Have a task eat some cpu while we are counting instructions to create some scheduler pressure. The idea being to try and unearth any bugs we have in counting that only appear when context switching is happening. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Add test of L3 bank handlingMichael Ellerman2-1/+49
Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Move core_busy_loop() into asmMichael Ellerman4-253/+272
There is at least one bug in core_busy_loop(), we use r0, but it's not in the clobber list. We were getting away with this it seems but that was luck. It's also fishy to be touching the stack, even if we do it below the stack pointer. It seems we get away with it, but looking at the generated code that may just be luck. So move it into assembler, do all the stack handling by hand. We create a stack frame to save the non-volatiles in, so we can muck around with them. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Fix parse_proc_maps()Michael Ellerman1-1/+1
start and end should be unsigned long. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-28selftests/powerpc: Don't ignore errors from sub MakefilesMichael Ellerman2-14/+11
Currently we ignore errors from our sub Makefiles. We inherited that from the top-level selftests Makefile which aims to build and run as many tests as possible and damn the torpedoes. For the powerpc tests we'd instead like any errors to fail the build, so we can automatically catch build failures. We can achieve the best of both worlds by using -k, which tells make to keep building when it hits an error, but still reports the error. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2014-07-27Merge branch 'acpica'Rafael J. Wysocki10-167/+1744
* acpica: (30 commits) ACPICA: Add new GPE public interface - acpi_mark_gpe_for_wake. ACPICA: GPEs: Do not allow enable for GPEs that have no handler(s). ACPICA: Fix a regression for deletion of Alias() objects. ACPICA: Update version to 20140627 ACPICA: Tables: Merge DMAR table structure updates ACPICA: Hardware: back port of a recursive locking fix ACPICA: utprint/oslibcfs: cleanup - no functional change ACPICA: Executer: Fix trivial issues in acpi_get_serial_access_bytes() ACPICA: OSL: Update acpidump to reduce source code differences ACPICA: acpidump: Reduce freopen() invocations to improve portability ACPICA: acpidump: Replace file IOs with new APIs to improve portability ACPICA: acpidump: Remove exit() from generic layer to improve portability ACPICA: acpidump: Add memory/string OSL usage to improve portability ACPICA: Common: Enhance acpi_getopt() to improve portability ACPICA: Common: Enhance cm_get_file_size() to improve portability ACPICA: Application: Enhance ACPI_USAGE_xxx/ACPI_OPTION with acpi_os_printf() to improve portability ACPICA: Utilities: Introduce acpi_log_error() to improve portability ACPICA: Utilities: Add formatted printing APIs ACPICA: OSL: Add portable file IO to improve portability ACPICA: OSL: Clean up acpi_os_printf()/acpi_os_vprintf() stubs ...
2014-07-25perf record: Store PERF_RECORD_FINISHED_ROUND only for nonempty roundsJiri Olsa1-1/+7
Currently we store PERF_RECORD_FINISHED_ROUND event each time we go throught mmap buffers no matter if it contains any data, which is useless. Forcing the PERF_RECORD_FINISHED_ROUND event to be stored any time we finished the round AND wrote at least one event. Signed-off-by: Jiri Olsa <[email protected]> Acked-by: Adrian Hunter <[email protected]> Acked-by: David Ahern <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jean Pihet <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-25perf record: Always force PERF_RECORD_FINISHED_ROUND eventJiri Olsa1-2/+1
The PERF_RECORD_FINISHED_ROUND synthetic record governs queue flushing in reporting, so it needs to be stored for any kind of event. The lack of such periodic flushing made the tools use more memory than needed, as the reordering was being done only after processing all events. This was the case when no tracepoints were in the mix. Forcing the PERF_RECORD_FINISHED_ROUND event to be stored for all event types. Signed-off-by: Jiri Olsa <[email protected]> Acked-by: Adrian Hunter <[email protected]> Acked-by: David Ahern <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jean Pihet <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-25perf inject: Add --kallsyms parameterAdrian Hunter2-0/+5
Let perf inject take --kallsyms parameter the same as perf script and perf report do. That is needed for decoding Instruction Trace data using a copy of /proc/kcore for the kernel object because the kallsyms path is used to locate that copy. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-25perf tools: Expose 'addr' functions so they can be reusedAdrian Hunter3-33/+53
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 <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-24perf session: Fix accounting of ordered samples queueJiri Olsa1-2/+1
Properly account flushed samples within the ordered samples queue. Signed-off-by: Jiri Olsa <[email protected]> Acked-by: Adrian Hunter <[email protected]> Acked-by: David Ahern <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jean Pihet <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-24perf powerpc: Include util/util.h and remove stringify macrosSukadev Bhattiprolu1-3/+1
The stringify macros are defined in tools/perf/util/util.h and don't need to be redfined specfiically for powerpc. Signed-off-by: Sukadev Bhattiprolu <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Michael Ellerman <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Fix build on gcc 4.4.7Arnaldo Carvalho de Melo1-1/+1
[acme@sandy linux]$ gcc --version gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3) Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. [acme@sandy linux]$ make O=/tmp/build/perf -C tools/perf install-bin <SNIP> CC /tmp/build/perf/builtin-trace.o builtin-trace.c: In function ‘perf_evlist__add_pgfault’: builtin-trace.c:1997: error: unknown field ‘sample_period’ specified in initializer make[1]: *** [/tmp/build/perf/builtin-trace.o] Error 1 make: *** [install-bin] Error 2 make: Leaving directory `/home/acme/git/linux/tools/perf' [acme@sandy linux]$ make O=/tmp/build/perf -C tools/perf install-bin make O=/tmp/build/perf -C tools/perf install-bin make: Entering directory `/home/acme/git/linux/tools/perf' Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Add thread parameter to vdso__dso_findnew()Adrian Hunter5-7/+10
The thread will be needed to determine the VDSO type. Reviewed-by: Jiri Olsa <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Add dso__type()Adrian Hunter5-0/+77
dso__type() determines wheather a dso is 32-bit, x32 (32-bit with 64-bit registers) or 64-bit. dso__type() will be used to determine the VDSO a program maps. Reviewed-by: Jiri Olsa <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Separate the VDSO map name from the VDSO dso nameAdrian Hunter4-9/+20
This is in preparation for supporting 32-bit compatibility VDSOs. Reviewed-by: Jiri Olsa <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Add vdso__new()Adrian Hunter1-5/+15
This is preparation for adding support for compat VDSOs. Reviewed-by: Jiri Olsa <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf machine: Fix the lifetime of the VDSO temporary fileAdrian Hunter5-13/+37
The VDSO temporary file is unlinked when a session is deleted. That precludes the possibilities that there is no session or there is more than one session. Correctly the vdso belongs to the machine so put the information on 'struct machine' and get rid of the global variables. Reviewed-by: Jiri Olsa <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Group VDSO global variables into a structureAdrian Hunter1-12/+32
This is preparation for removing the global variables used in vdso.c and thereby fixing the lifetime of the VDSO temporary file. Also allowance is made for the later addition of support for compat VDSOs. Reviewed-by: Jiri Olsa <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf session: Add ability to skip 4GiB or moreAdrian Hunter1-7/+8
A session can be made to skip portions of the input file. Do not limit that size to 32-bits. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf session: Add ability to 'skip' a non-piped event streamAdrian Hunter1-1/+6
A piped event stream may contain arbitary sized tracepoint information following a PERF_RECORD_HEADER_TRACING_DATA event. The position in the stream has to be 'skipped' to match the start of the next event. Provide the same ability to a non-piped event stream to allow for Instruction Trace data that may also be in a non-piped event stream. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Pass machine to vdso__dso_findnew()Adrian Hunter5-10/+14
This is preparation for removing the global variables used in vdso.c and thereby fixing the lifetime of the VDSO temporary file. Reviewed-by: Jiri Olsa <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23tools: add script to test udelayDavid Riley1-0/+66
This script makes use of the udelay_test module to exercise udelay() and ensure that it is delaying long enough (as compared to ktime). Signed-off-by: David Riley <[email protected]> Signed-off-by: John Stultz <[email protected]>
2014-07-23perf tools: Add dso__data_size()Adrian Hunter2-0/+24
Add a function to return the dso data size, for use in estimating the size an instruction cache. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Move rdtsc() functionAdrian Hunter4-9/+15
Move the rdtsc() function so it can be reusued. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf machine: Add ability to record the current tid for each cpuAdrian Hunter2-0/+51
Add an array to struct machine to store the current tid running on each cpu. Add machine functions to get / set the tid for a cpu. This will be used to determine the tid when decoding a per-cpu Instruction Trace. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Add cpu to struct threadAdrian Hunter2-0/+2
Tools may wish to track on which cpu a thread is running. Add 'cpu' to struct thread for that purpose. This will be used to determine the cpu when decoding a per-thread Instruction Trace. E.g: Intel PT decoding uses sched_switch events to determine which task is running on which cpu. The Intel PT data comes straight from the hardware which doesn't know about linux threads. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Add dsos__hit_all()Adrian Hunter2-0/+43
Add ability to mark all dsos as hit. This is needed in the case of Instruction Tracing. It takes so long to decode an Instruction Trace that it is not worth doing just to determine which dsos are hit. A later patch takes this into use. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Add dso__data_status_seen()Adrian Hunter2-0/+18
Add a function to track whether a caller has seen the data status of a dso. This is needed to enable callers to report the error exactly once only per dso. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf tools: Record whether a dso has dataAdrian Hunter2-8/+22
Add 'data.status' to record whether a dso has data (i.e. an object file). This is used to avoid repeatedly creating the file name and attempting to open a file that is not present. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-07-23perf script: Do not print dangling '=>' for BTSAdrian Hunter1-3/+3
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 <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Powered by cgit, Gruvboxed by Blaster4385.