linux-stable.git/tools/perf/perf.h, branch linux-3.7.y

perf: Make perf build for x86 with UAPI disintegration applied

2012-11-19T22:21:03+00:00

Make perf build for x86 once the UAPI disintegration patches for that arch
have been applied by adding the appropriate -I flags - in the right order -
and then converting some #includes that use ../.. notation to find main kernel
headerfiles to use  and  instead.

Note that -Iarch/foo/include/uapi is present _before_ -Iarch/foo/include.
This makes sure we get the userspace version of the pt_regs struct.  Ideally,
we wouldn't have the latter -I flag at all, but unfortunately we want
asm/svm.h and asm/vmx.h in builtin-kvm.c and these aren't part of the UAPI -
at least not for x86.  I wonder if the bits outside of the __KERNEL__ guards
*should* be transferred there.

I note also that perf seems to do its dependency handling manually by listing
all the header files it might want to use in LIB_H in the Makefile.  Can this
be changed to use -MD?

Note that to do make this work, we need to export and UAPI disintegrate
linux/hw_breakpoint.h, which I think should've been exported previously so that
perf can access the bits.  We have to do this in the same patch to maintain
bisectability.

Signed-off-by: David Howells

perf powerpc: Use uapi/unistd.h to fix build error

2012-11-19T22:10:41+00:00

Use the 'unistd.h' from arch/powerpc/include/uapi to build the perf tool.

Signed-off-by: Sukadev Bhattiprolu 
Acked-by: David Howells 
Cc: Anton Blanchard 
Cc: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Robert Richter 
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20121107191818.GA16211@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo

Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

2012-10-20T00:40:26+00:00

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

* The python binding needs to link with libtraceevent and to initialize
  the 'page_size' variable so that mmaping works again.

* The callchain folding character that appears on the TUI just before
  the overhead had disappeared due to recent changes, add it back.

* Intel PEBS in VT-x context uses the DS address as a guest linear address,
  even though its programmed by the host as a host linear address. This either
  results in guest memory corruption and or the hardware faulting and 'crashing'
  the virtual machine.  Therefore we have to disable PEBS on VT-x enter and
  re-enable on VT-x exit, enforcing a strict exclude_guest.

  Kernel side enforcement fix by Peter Zijlstra, tooling side fix by David Ahern.

* Fix build on sparc due to UAPI, fix from David Miller.

* Fixes for the srclike sort key for unresolved symbols and when processing
  samples in JITted code, where we don't have an ELF file, just an special
  symbol table, fixes from Namhyung Kim.

* Fix some leaks in libtraceevent, from Steven Rostedt.

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Ingo Molnar

perf tools: Fix build on sparc.

2012-10-17T14:45:58+00:00

More UAPI stuff.

Signed-off-by: David S. Miller 
Cc: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20121017.010656.383828471689899431.davem@davemloft.net
Signed-off-by: Arnaldo Carvalho de Melo

perf: Fix UAPI fallout

2012-10-14T19:22:52+00:00

The UAPI commits forgot to test tooling builds such as tools/perf/,
and this fixes the fallout.

Manual conversion.

Signed-off-by: Ingo Molnar 
Signed-off-by: Linus Torvalds

Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

2012-10-01T18:51:57+00:00

Pull arm64 support from Catalin Marinas:
 "Linux support for the 64-bit ARM architecture (AArch64)

  Features currently supported:
   - 39-bit address space for user and kernel (each)
   - 4KB and 64KB page configurations
   - Compat (32-bit) user applications (ARMv7, EABI only)
   - Flattened Device Tree (mandated for all AArch64 platforms)
   - ARM generic timers"

* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (35 commits)
  arm64: ptrace: remove obsolete ptrace request numbers from user headers
  arm64: Do not set the SMP/nAMP processor bit
  arm64: MAINTAINERS update
  arm64: Build infrastructure
  arm64: Miscellaneous header files
  arm64: Generic timers support
  arm64: Loadable modules
  arm64: Miscellaneous library functions
  arm64: Performance counters support
  arm64: Add support for /proc/sys/debug/exception-trace
  arm64: Debugging support
  arm64: Floating point and SIMD
  arm64: 32-bit (compat) applications support
  arm64: User access library functions
  arm64: Signal handling support
  arm64: VDSO support
  arm64: System calls handling
  arm64: ELF definitions
  arm64: SMP support
  arm64: DMA mapping API
  ...

arm64: Performance counters support

2012-09-17T12:42:17+00:00

This patch adds support for the AArch64 performance counters.

Signed-off-by: Will Deacon 
Signed-off-by: Catalin Marinas 
Acked-by: Tony Lindgren 
Acked-by: Nicolas Pitre 
Acked-by: Olof Johansson 
Acked-by: Santosh Shilimkar

perf tools: Support for DWARF mode callchain

2012-08-11T18:07:18+00:00

This patch enables perf to use the DWARF unwind code.

It extends the perf record '-g' option with following arguments:
  'fp'           - provides framepointer based user
                   stack backtrace
  'dwarf[,size]' - provides DWARF (libunwind) based user stack
                   backtrace. The size specifies the size of the
                   user stack dump. If omitted it is 8192 by default.

If libunwind is found during the perf build, then the 'dwarf' argument
becomes available for record command. The 'fp' stays as default option
in any case.

Examples: (perf compiled with libunwind)

   perf record -g dwarf ls
      - provides dwarf unwind with 8192 as stack dump size

   perf record -g dwarf,4096 ls
      - provides dwarf unwind with 4096 as stack dump size

   perf record -g -- ls
   perf record -g fp ls
      - provides frame pointer unwind

Signed-off-by: Jiri Olsa 
Original-patch-by: Frederic Weisbecker 
Cc: "Frank Ch. Eigler" 
Cc: Arun Sharma 
Cc: Benjamin Redelings 
Cc: Corey Ashford 
Cc: Cyrill Gorcunov 
Cc: Frank Ch. Eigler 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Masami Hiramatsu 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Robert Richter 
Cc: Stephane Eranian 
Cc: Tom Zanussi 
Cc: Ulrich Drepper 
Link: http://lkml.kernel.org/r/1344345647-11536-13-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo

perf record: Fix branch_stack type in perf_record_opts

2012-05-25T21:32:44+00:00

The attr.branch_sample_type field is defined as u64 by the API.  As
such, we need to ensure the variable holding the value of the branch
stack filters is also u64 otherwise we may lose bits in the future.

Note also that the bogus definition of the field in perf_record_opts
caused problems on big-endian PPC systems.  Thanks to Anshuman Khandual
for tracking the problem on PPC.

Reported-by: Anshuman Khandual 
Signed-off-by: Stephane Eranian 
Cc: Anshuman Khandual 
Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20120525211344.GA7729@quad
Signed-off-by: Arnaldo Carvalho de Melo

perf target: Split out perf_target handling code

2012-05-02T18:41:11+00:00

For further work on perf_target, it'd be better off splitting the code
into a separate file.

Signed-off-by: Namhyung Kim 
Reviewed-by: David Ahern 
Cc: David Ahern 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1335417327-11796-9-git-send-email-namhyung.kim@lge.com
[ committer note: Fixed perl build by using stdbool and types.h in target.h ]
Signed-off-by: Arnaldo Carvalho de Melo