linux-stable.git/tools/arch, branch v4.16.2

tools headers: Sync x86's cpufeatures.h

2018-03-05T15:07:52+00:00

The changes in dd84441a7971 ("x86/speculation: Use IBRS if available
before calling into firmware") don't need any kind of special treatment
in the current tools/perf/ codebase, so just update the copy to get rid
of the perf build warning:

  BUILD:   Doing 'make -j4' parallel build
  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: David Woodhouse 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-mzmuxocrf96v922xkerey3ns@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

Revert "tools include s390: Grab a copy of arch/s390/include/uapi/asm/unistd.h"

2018-02-15T13:06:15+00:00

This reverts commit f120c7b187e6c418238710b48723ce141f467543 which is no
longer required with the introduction of a syscall.tbl on s390.

Signed-off-by: Hendrik Brueckner 
Cc: Jiri Olsa 
Cc: Michael Petlan 
Cc: Thomas Richter 
Cc: linux-s390@vger.kernel.org
LPU-Reference: 1518090470-2899-2-git-send-email-brueckner@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-q1lg0nvhha1tk39ri9aqalcb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools/headers: Synchronize kernel ABI headers, v4.16-rc1

2018-02-15T13:01:46+00:00

Sync the following tooling headers with the latest kernel version:

  tools/arch/powerpc/include/uapi/asm/kvm.h
  tools/arch/x86/include/asm/cpufeatures.h
  tools/include/uapi/drm/i915_drm.h
  tools/include/uapi/linux/if_link.h
  tools/include/uapi/linux/kvm.h

All the changes are new ABI additions which don't impact their use
in existing tooling.

Cc: Arnaldo Carvalho de Melo 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: Namhyung Kim 
Cc: Jiri Olsa 
Cc: Stephen Rothwell 
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar

tools headers: Synchoronize x86 features UAPI headers

2018-02-02T20:22:12+00:00

Sync tools/arch/x86/include/asm/{cpu,disabled-,required-}features.h with
the changes in:

  2961298efe1e ("x86/cpufeatures: Clean up Spectre v2 related CPUID flags")
  20ffa1caecca ("x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support")
  5d10cbc91d9e ("x86/cpufeatures: Add AMD feature bits for Speculation Control")
  fc67dd70adb7 ("x86/cpufeatures: Add Intel feature bits for Speculation Control")
  95ca0ee86360 ("x86/cpufeatures: Add CPUID_7_EDX CPUID leaf")
  a511e7935378 ("x86/intel_rdt: Enumerate L2 Code and Data Prioritization (CDP) feature")
  4fdec2034b75 ("x86/cpufeature: Move processor tracing out of scattered features")
  c995efd5a740 ("x86/retpoline: Fill RSB on context switch for affected CPUs")
  76b043848fd2 ("x86/retpoline: Add initial retpoline support")
  99c6fa2511d8 ("x86/cpufeatures: Add X86_BUG_SPECTRE_V[12]")
  de791821c295 ("x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN")
  6cff64b86aaa ("x86/mm: Use INVPCID for __native_flush_tlb_single()")

None will entail changes in the tools/perf/, synchronizing to elliminate
these perf build warnings:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/required-features.h' differs from latest version at 'arch/x86/include/asm/required-features.h'
  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'

Cc: Adrian Hunter 
Cc: Dave Hansen 
Cc: David Ahern 
Cc: David Woodhouse 
Cc: Fenghua Yu 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Paolo Bonzini 
Cc: Thomas Gleixner 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-dbdjack1k92xar5ccuq4el1h@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers: Sync {tools/,}arch/powerpc/include/uapi/asm/kvm.h

2018-02-02T20:04:53+00:00

The changes in the 3214d01f139b ("KVM: PPC: Book3S: Provide information
about hardware/firmware CVE workarounds") commit right now will not
produce any change in the tools, but that is because we still need to
improve tools/perf/trace/beauty/kvm_ioctl.sh to build per arch string
tables, so that we avoid assigning multiple times to the same command
string entry, i.e. multiple defines, for different arches, have the same
value, causing this:

  In file included from trace/beauty/ioctl.c:82:0:
  /tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c: In function ‘ioctl__scnprintf_kvm_cmd’:
  /tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:76:11: error: initialized field overwritten [-Werror=override-init]
  /tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:88:11: note: (near initialization for ‘kvm_ioctl_cmds[165]’)
  /tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:90:11: error: initialized field overwritten [-Werror=override-init]
    [0xa6] = "PPC_GET_SMMU_INFO",
             ^~~~~~~~~~~~~~~~~~~

So the onlye effect of updating the tools/ copy of ppc's kvm.h header
is to silence these perf build warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h'

At some point we should do what we did for the errno tables and create
per-arch string translation tables for the KVM ioctl commands for the
architectures supporting KVM, such as s/390, PowerPC, x86_64 and ARM.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Hendrik Brueckner 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Ravi Bangoria 
Cc: Thomas Richter 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-jmcf78tqiudgn46zqfw2tgt2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tooling headers: Synchronize updated s390 kvm UAPI headers

2018-02-02T19:43:45+00:00

The 35b3fde6203b ("KVM: s390: wire up bpb feature") was noticed by the
perf build process:

  Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' differs from latest version at 'arch/s390/include/uapi/asm/kvm.h'

The changes in this cset don't cause or require changes in tools/perf/,
so just update the copy to silence the build warning.

Cc: Adrian Hunter 
Cc: Christian Borntraeger 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Radim Krčmář 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-kif2fdkcaewj8iqw6lwyil8s@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools include arch: Grab a copy of errno.h for arch's supported by perf

2018-01-23T12:51:37+00:00

For each arch in tools/perf/arch, grab a copy of errno.h.

This is a pre-req to generate an architecture specific mapping of errno
numbers to their names.  This errno mapping can be used by perf trace to
support cross-architecture trace reports and to get rid of the
audit-libs dependency.

Signed-off-by: Hendrik Brueckner 
Reviewed-by: Thomas Richter 
Cc: Jiri Olsa 
Cc: Michael Petlan 
Cc: linux-s390@vger.kernel.org
LPU-Reference: 1516352177-11106-2-git-send-email-brueckner@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-73azjhrzpjsskwi129020i2u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers: Synchronize kernel <-> tooling headers

2018-01-10T15:46:54+00:00

Two kernel headers got modified recently due to meltdown/spectre, in:

  a89f040fa34e ("x86/cpufeatures: Add X86_BUG_CPU_INSECURE")

which are used by tooling as well:

  arch/x86/include/asm/cpufeatures.h
  arch/x86/include/asm/disabled-features.h

None of those changes have an effect on tooling, so do a plain copy.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Thomas Gleixner 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-qqzcs8ri3vks8cypg0puk0ae@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

Merge branch 'linus' into perf/core, to pick up fixes

2018-01-06T11:07:10+00:00

Signed-off-by: Ingo Molnar

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

2017-12-31T19:47:24+00:00

Pull perf fixes from Thomas Gleixner:

 - plug a memory leak in the intel pmu init code

 - clang fixes

 - tooling fix to avoid including kernel headers

 - a fix for jvmti to generate correct debug information for inlined
   code

 - replace backtick with a regular shell function

 - fix the build in hardened environments

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Plug memory leak in intel_pmu_init()
  x86/asm: Allow again using asm.h when building for the 'bpf' clang target
  tools arch s390: Do not include header files from the kernel sources
  perf jvmti: Generate correct debug information for inlined code
  perf tools: Fix up build in hardened environments
  perf tools: Use shell function for perl cflags retrieval