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  1. 21 Nov, 2018 10 commits
  3. 20 Nov, 2018 1 commit
  5. 19 Nov, 2018 6 commits
    • Arnaldo Carvalho de Melo's avatar
      perf tools beauty ioctl: Support new ISO7816 commands · a4243e14
      Arnaldo Carvalho de Melo authored 
      Introduced in:

  ad8c0eaa ("tty/serial_core: add ISO7816 infrastructure")

Now 'perf trace' will be able to pretty-print the 'cmd' ioctl arg when
used in capable systems with software emitting those commands.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-7bds48dhckfnleie08mit314@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a4243e14
    • Arnaldo Carvalho de Melo's avatar
      tools uapi asm-generic: Synchronize ioctls.h · 83d9bdea
      Arnaldo Carvalho de Melo authored 
      To pick up the changes in:

  ad8c0eaa ("tty/serial_core: add ISO7816 infrastructure")

That is a change that imply a change to be made in tools/perf/trace/beauty/ioctl.c to
make 'perf trace' ioctl syscall argument beautifier to support these new
commands:  TIOCGISO7816 and TIOCSISO7816.

This is not yet done automatically by a script like is done for some
other headers, for instance:

  $ tools/perf/trace/beauty/drm_ioctl.sh | head
  #ifndef DRM_COMMAND_BASE
  #define DRM_COMMAND_BASE                0x40
  #endif
  static const char *drm_ioctl_cmds[] = {
	[0x00] = "VERSION",
	[0x01] = "GET_UNIQUE",
	[0x02] = "GET_MAGIC",
	[0x03] = "IRQ_BUSID",
	[0x04] = "GET_MAP",
	[0x05] = "GET_CLIENT",
  $

So we will need to change tools/perf/trace/beauty/ioctl.c in a follow up
patch until we switch to a generator script.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-zin76fe6iykqsilvo6u47f9o@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      83d9bdea
    • Arnaldo Carvalho de Melo's avatar
      tools arch x86: Update tools's copy of cpufeatures.h · 65e259d5
      Arnaldo Carvalho de Melo authored 
      To get the changes in the following csets:

  ace6485a ("x86/cpufeatures: Enumerate MOVDIR64B instruction")
  33823f4d ("x86/cpufeatures: Enumerate MOVDIRI instruction")

No tools were affected, copy it to silence this perf tool build warning:

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

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lkml.kernel.org/n/tip-83kcyqa1qkxkhm1s7q3hbpel@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      65e259d5
    • Arnaldo Carvalho de Melo's avatar
      tools headers uapi: Synchronize i915_drm.h · 53f00f45
      Arnaldo Carvalho de Melo authored 
      To pick up the changes in:

  900ccf30 ("drm/i915: Only force GGTT coherency w/a on required chipsets")

No changes are required in tools/ nor does anything gets automatically
generated to be used in the 'perf trace' syscall arg beautifiers.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
  diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-t2vor2wegv41gt5n49095kly@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      53f00f45
    • Jiri Olsa's avatar
      perf tools: Restore proper cwd on return from mnt namespace · b01c1f69
      Jiri Olsa authored 
      When reporting on 'record' server we try to retrieve/use the mnt
namespace of the profiled tasks. We use following API with cookie to
hold the return namespace, roughly:

  nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc)
    setns(newns, 0);
  ...
  new ns related open..
  ...
  nsinfo__mountns_exit(struct nscookie *nc)
    setns(nc->oldns)

Once finished we setns to old namespace, which also sets the current
working directory (cwd) to "/", trashing the cwd we had.

This is mostly fine, because we use absolute paths almost everywhere,
but it screws up 'perf diff':

  # perf diff
  failed to open perf.data: No such file or directory  (try 'perf record' first)
  ...

Adding the current working directory to be part of the cookie and
restoring it in the nsinfo__mountns_exit call.
Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: 843ff37b ("perf symbols: Find symbols in different mount namespace")
Link: http://lkml.kernel.org/r/20181101170001.30019-1-jolsa@kernel.org
[ No need to check for NULL args for free(), use zfree() for struct members ]
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      b01c1f69
    • Arnaldo Carvalho de Melo's avatar
      tools build feature: Check if get_current_dir_name() is available · 8feb8efe
      Arnaldo Carvalho de Melo authored 
      As the namespace support code will use this, which is not available in
some non _GNU_SOURCE libraries such as Android's bionic used in my
container build tests (r12b and r15c at the moment).

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-x56ypm940pwclwu45d7jfj47@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      8feb8efe
  7. 18 Nov, 2018 23 commits
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