kernel/linux.git/tools, branch v4.14.2

selftests/x86/protection_keys: Fix syscall NR redefinition warnings

2017-11-21T08:49:22+00:00

commit 693cb5580fdb026922363aa103add64b3ecd572e upstream. On new enough glibc, the pkey syscalls numbers are available. Check first before defining them to avoid warnings like: protection_keys.c:198:0: warning: "SYS_pkey_alloc" redefined Signed-off-by: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1fbef53a9e6befb7165ff855fc1a7d4788a191d6.1509794321.git.luto@kernel.org Signed-off-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman

tooling/headers: Sync the tools/include/uapi/drm/i915_drm.h UAPI header

2017-11-11T08:08:43+00:00

Last minute upstream update to one of the UAPI headers - sync it with tooling, to address this warning: Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h' Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Peter Zijlstra Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar

Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

2017-11-11T08:03:59+00:00

Pull perf tooling fixes from Arnaldo Carvalho de Melo. Signed-off-by: Ingo Molnar

perf trace: Call machine__exit() at exit

2017-11-09T13:17:32+00:00

Otherwise 'perf trace' leaves a temporary file /tmp/perf-vdso.so-XXXXXX. $ perf trace -o log true $ ls -l /tmp/perf-vdso.* -rw------- 1 root root 8192 Nov 8 03:08 /tmp/perf-vdso.so-5bCpD0 Signed-off-by: Andrei Vagin Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Vasily Averin Link: http://lkml.kernel.org/r/20171108002246.8924-1-avagin@openvz.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Fix eBPF event specification parsing

2017-11-09T13:10:58+00:00

Looks like I've reached the new level of stupidity, adding missing braces. Committer testing: Given the following eBPF C filter, that will add a record when it returns true, i.e. when the tv_nsec variable is > 2000ns, should be built and installed via sys_bpf(), but fails to do so before this patch: # cat filter.c #include #define SEC(NAME) __attribute__((section(NAME), used)) SEC("func=hrtimer_nanosleep rqtp->tv_nsec") int func(void *ctx, int err, long nsec) { return nsec > 1000; } char _license[] SEC("license") = "GPL"; int _version SEC("version") = LINUX_VERSION_CODE; # # perf trace -e nanosleep,filter.c usleep 1 invalid or unsupported event: 'filter.c' Run 'perf list' for a list of valid events Usage: perf trace [] [] or: perf trace [] -- [] or: perf trace record [] [] or: perf trace record [] -- [] -e, --event event/syscall selector. use 'perf list' to list available events # And works again after it is applied, the nothing is inserted when the co # perf trace -e *sleep,filter.c usleep 1 0.000 ( 0.066 ms): usleep/23994 nanosleep(rqtp: 0x7ffead94a0d0) = 0 # perf trace -e *sleep,filter.c usleep 2 0.000 ( 0.008 ms): usleep/24378 nanosleep(rqtp: 0x7fffa021ba50) ... 0.008 ( ): perf_bpf_probe:func:(ffffffffb410cb30) tv_nsec=2000) 0.000 ( 0.066 ms): usleep/24378 ... [continued]: nanosleep()) = 0 # The intent of 9445464bb831 is kept: # perf stat -e 'cpu/uops_executed.core,krava/' true event syntax error: '..cuted.core,krava/' \___ unknown term valid terms: cmask,pc,event,edge,in_tx,any,ldlat,inv,umask,in_tx_cp,offcore_rsp,config,config1,config2,name,period Run 'perf list' for a list of valid events Usage: perf stat [] [] -e, --event event selector. use 'perf list' to list available events # # perf stat -e 'cpu/uops_executed.core,period=1/' true Performance counter stats for 'true': 808,332 cpu/uops_executed.core,period=1/ 0.002997237 seconds time elapsed # Reported-by: Arnaldo Carvalho de Melo Signed-off-by: Jiri Olsa Cc: Andi Kleen Cc: Namhyung Kim Fixes: 9445464bb831 ("perf tools: Unwind properly location after REJECT") Link: http://lkml.kernel.org/n/tip-diea0ihbwpxfw6938huv3whj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add "reject" option for parse-events.l

2017-11-09T13:09:03+00:00

Arnaldo reported broken builds in some distros using a newer flex release, 2.6.4, found in Alpine Linux 3.6 and Edge, with flex not spotting the REJECT macro: CC /tmp/build/perf/util/parse-events-flex.o util/parse-events.l: In function 'parse_events_lex': /tmp/build/perf/util/parse-events-flex.c:4734:16: error: \ 'reject_used_but_not_detected' undeclared (first use in this function) It's happening because we put the REJECT under another USER_REJECT macro in following commit: 9445464bb831 perf tools: Unwind properly location after REJECT Fortunately flex provides option for force it to use REJECT, adding it to parse-events.l. Reported-by: Arnaldo Carvalho de Melo Reported-by: Markus Trippelsdorf Signed-off-by: Jiri Olsa Reviewed-by: Andi Kleen Tested-by: Arnaldo Carvalho de Melo Cc: Namhyung Kim Fixes: 9445464bb831 ("perf tools: Unwind properly location after REJECT") Link: http://lkml.kernel.org/n/tip-7kdont984mw12ijk7rji6b8p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-05T19:44:39+00:00

Pull perf fixes from Ingo Molnar: "Various fixes: - synchronize kernel and tooling headers - cgroup support fix - two tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/headers: Synchronize kernel ABI headers perf/cgroup: Fix perf cgroup hierarchy support perf tools: Unwind properly location after REJECT perf symbols: Fix memory corruption because of zero length symbols

tools/headers: Synchronize kernel ABI headers

2017-11-04T08:27:46+00:00

After the SPDX license tags were added a number of tooling headers got out of sync with their kernel variants, generating lots of build warnings. Sync them: - tools/arch/x86/include/asm/disabled-features.h, tools/arch/x86/include/asm/required-features.h, tools/include/linux/hash.h: Remove the SPDX tag where the kernel version does not have it. - tools/include/asm-generic/bitops/__fls.h, tools/include/asm-generic/bitops/arch_hweight.h, tools/include/asm-generic/bitops/const_hweight.h, tools/include/asm-generic/bitops/fls.h, tools/include/asm-generic/bitops/fls64.h, tools/include/uapi/asm-generic/ioctls.h, tools/include/uapi/asm-generic/mman-common.h, tools/include/uapi/sound/asound.h, tools/include/uapi/linux/kvm.h, tools/include/uapi/linux/perf_event.h, tools/include/uapi/linux/sched.h, tools/include/uapi/linux/vhost.h, tools/include/uapi/sound/asound.h: Add the SPDX tag of the respective kernel header. - tools/include/uapi/linux/bpf_common.h, tools/include/uapi/linux/fcntl.h, tools/include/uapi/linux/hw_breakpoint.h, tools/include/uapi/linux/mman.h, tools/include/uapi/linux/stat.h, Change the tag to the kernel header version: -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ Also sync other header details: - include/uapi/sound/asound.h: Fix pointless end of line whitespace noise the header grew in this cycle. - tools/arch/x86/lib/memcpy_64.S: Sync the code and add tools/include/asm/export.h with dummy wrappers to support building the kernel side code in a tooling header environment. - tools/include/uapi/asm-generic/mman.h, tools/include/uapi/linux/bpf.h: Sync other details that don't impact tooling's use of the ABIs. Acked-by: Arnaldo Carvalho de Melo Cc: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Namhyung Kim Cc: Jiri Olsa Cc: Stephen Rothwell Signed-off-by: Ingo Molnar

objtool: Resync objtool's instruction decoder source code copy with the kernel's latest version

2017-11-04T07:54:06+00:00

This fixes the following warning: warning: objtool: x86 instruction decoder differs from kernel Reported-by: Stephen Rothwell Signed-off-by: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/013315a808ccf5580abc293808827c8e2b5e1354.1509719152.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar

Merge branch 'linus' into perf/urgent, to pick up dependent commits

2017-11-03T11:30:12+00:00

Signed-off-by: Ingo Molnar