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15603 Commits

Author SHA1 Message Date
Arnaldo Carvalho de Melo
425859ff0d perf annotate: No need to calculate notes->start twice 
Since we already set notes->start to map__rip_2objdump(map, sym->start)
in symbol__annotate2(), no need to calculate that address again in
symbol__calc_lines(), just use notes->start.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-ycxlg8mm5ueuj21w6gi62l7g@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-21 12:53:43 -03:00
Arnaldo Carvalho de Melo
d9bd766584 perf annotate browser: Add 'P' hotkey to dump annotation to file 
Just like we have in the histograms browser used as the main screen for
'perf top --tui' and 'perf report --tui', to print the current
annotation to a file with a named composed by the symbol name and the
".annotation" suffix.

Here is one example of pressing 'A' on 'perf top' to live annotate a
kernel function and then press 'P' to dump that annotation, the
resulting file:

  # cat _raw_spin_lock_irqsave.annotation
  _raw_spin_lock_irqsave() /proc/kcore
  Event: cycles:ppp

    7.14        nop
   21.43        push   %rbx
    7.14        pushfq
                pop    %rax
                nop
                mov    %rax,%rbx
                cli
                nop
                xor    %eax,%eax
                mov    $0x1,%edx
   64.29        lock   cmpxchg %edx,(%rdi)
                test   %eax,%eax
              ↓ jne    2b
                mov    %rbx,%rax
                pop    %rbx
              ← retq
          2b:   mov    %eax,%esi
              → callq  queued_spin_lock_slowpath
                mov    %rbx,%rax
                pop    %rbx
              ← retq
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-zzmnrwugb5vtk7bvg0rbx150@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-21 12:53:43 -03:00
Arnaldo Carvalho de Melo
91340c5184 perf report: Introduce --ignore-vmlinux command line option 
We've had this in 'perf top' for quite a while, useful if one wishes
to force using /proc/kcore to do annotation using the patched kernel
instead of the ELF image it started from, aka vmlinux.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-ircpvox4wzsv7gasrpb28fw9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-21 12:53:42 -03:00
Arnaldo Carvalho de Melo
be316409e9 perf annotate: Introduce --ignore-vmlinux command line option 
This is already present in 'perf top', albeit undocumented (will fix),
and is useful to use /proc/kcore instead of vmlinux and then get what is
really in place, not what the kernel starts with, before alternatives,
ftrace .text patching, etc, see the differences:

  # perf annotate --stdio2 _raw_spin_lock_irqsave
  _raw_spin_lock_irqsave() /lib/modules/4.16.0-rc4/build/vmlinux
  Event: anon group { cycles, instructions }

    0.00   3.17      → callq  __fentry__
    0.00   7.94        push   %rbx
    7.69  36.51      → callq  __page_file_index
                       mov    %rax,%rbx
    7.69   3.17      → callq  *ffffffff82225cd0
                       xor    %eax,%eax
                       mov    $0x1,%edx
   80.77  49.21        lock   cmpxchg %edx,(%rdi)
                       test   %eax,%eax
                     ↓ jne    2b
    3.85   0.00        mov    %rbx,%rax
                       pop    %rbx
                     ← retq
                 2b:   mov    %eax,%esi
                     → callq  queued_spin_lock_slowpath
                       mov    %rbx,%rax
                       pop    %rbx
                     ← retq
  [root@jouet ~]# perf annotate --ignore-vmlinux --stdio2 _raw_spin_lock_irqsave
  _raw_spin_lock_irqsave() /proc/kcore
  Event: anon group { cycles, instructions }

    0.00   3.17        nop
    0.00   7.94        push   %rbx
    0.00  23.81        pushfq
    7.69  12.70        pop    %rax
                       nop
                       mov    %rax,%rbx
    7.69   3.17        cli
                       nop
                       xor    %eax,%eax
                       mov    $0x1,%edx
   80.77  49.21        lock   cmpxchg %edx,(%rdi)
                       test   %eax,%eax
                     ↓ jne    2b
    3.85   0.00        mov    %rbx,%rax
                       pop    %rbx
                     ← retq
                 2b:   mov    %eax,%esi
                     → callq  *ffffffff820e96b0
                       mov    %rbx,%rax
                       pop    %rbx
                     ← retq
  #

Diff of the output of those commands:

  # perf annotate --stdio2 _raw_spin_lock_irqsave > /tmp/vmlinux
  # perf annotate --ignore-vmlinux --stdio2 _raw_spin_lock_irqsave > /tmp/kcore
  # diff -y /tmp/vmlinux /tmp/kcore
  _raw_spin_lock_irqsave() vmlinux             | _raw_spin_lock_irqsave() /proc/kcore
  Event: anon group { cycles, instructions }     Event: anon group { cycles, instructions }

   0.00  3.17  → callq __fentry__              |  0.00  3.17     nop
   0.00  7.94    push  %rbx                       0.00  7.94     push  %rbx
   7.69 36.51  → callq __page_file_index       |  0.00 23.81     pushfq
                                               >  7.69 12.70     pop   %rax
                                               >                 nop
                 mov   %rax,%rbx                                 mov   %rax,%rbx
   7.69  3.17  → callq *ffffffff82225cd0       |  7.69  3.17     cli
                                               >                 nop
                 xor   %eax,%eax                                 xor   %eax,%eax
                 mov   $0x1,%edx                                 mov   $0x1,%edx
  80.77 49.21    lock  cmpxchg %edx,(%rdi)       80.77 49.21     lock  cmpxchg %edx,(%rdi)
                 test  %eax,%eax                                 test  %eax,%eax
               ↓ jne   2b                                      ↓ jne   2b
   3.85  0.00    mov   %rbx,%rax                  3.85  0.00     mov   %rbx,%rax
                 pop   %rbx                                      pop   %rbx
               ← retq                                          ← retq
            2b:  mov   %eax,%esi                            2b:  mov   %eax,%esi
               → callq queued_spin_lock_slowpath|              → callq *ffffffff820e96b0
                 mov   %rbx,%rax                                 mov   %rbx,%rax
                 pop   %rbx                                      pop   %rbx
               ← retq                                          ← retq
  #

This should be further streamlined by doing both annotations and
allowing the TUI to toggle initial/current, and show the patched
instructions in a slightly different color.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-wz8d269hxkcwaczr0r4rhyjg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-21 12:53:42 -03:00
Arnaldo Carvalho de Melo
864298f224 perf annotate: Add function header to --stdio2 
# perf annotate --stdio2 _raw_spin_lock_irqsave
  _raw_spin_lock_irqsave() /lib/modules/4.16.0-rc4/build/vmlinux
  Event: anon group { cycles, instructions }

    0.00   3.17      → callq  __fentry__
    0.00   7.94        push   %rbx
    7.69  36.51      → callq  __page_file_index
                       mov    %rax,%rbx
    7.69   3.17      → callq  *ffffffff82225cd0
                       xor    %eax,%eax
                       mov    $0x1,%edx
   80.77  49.21        lock   cmpxchg %edx,(%rdi)
                       test   %eax,%eax
                     ↓ jne    2b
    3.85   0.00        mov    %rbx,%rax
                       pop    %rbx
                     ← retq
                 2b:   mov    %eax,%esi
                     → callq  queued_spin_lock_slowpath
                       mov    %rbx,%rax
                       pop    %rbx
                     ← retq
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-i86yfyzl8m194ioxgj1jo32f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-21 12:53:41 -03:00
Arnaldo Carvalho de Melo
3563289208 perf annotate: Use the default annotation options for --stdio2 
With an empty '[annotate]' section in ~/.perfconfig:

  # perf record -a --all-kernel -e '{cycles,instructions}:P' sleep 5
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 2.243 MB perf.data (5513 samples) ]
  # perf annotate --stdio2 _raw_spin_lock | head -20

                     Disassembly of section .text:

                     ffffffff81868790 <_raw_spin_lock>:
                     _raw_spin_lock():
                     EXPORT_SYMBOL(_raw_spin_trylock_bh);
                     #endif

                     #ifndef CONFIG_INLINE_SPIN_LOCK
                     void __lockfunc _raw_spin_lock(raw_spinlock_t *lock)
                     {
                     → callq  __fentry__
                     atomic_cmpxchg():
                             return xadd(&v->counter, -i);
                     }

                     static __always_inline int atomic_cmpxchg(atomic_t *v, int old, int new)
                     {
  # perf annotate --stdio2 _raw_spin_lock | head -20
                     → callq  __fentry__
                       xor    %eax,%eax
                       mov    $0x1,%edx
   87.50 100.00        lock   cmpxchg %edx,(%rdi)
    6.25   0.00        test   %eax,%eax
                     ↓ jne    16
    6.25   0.00        repz   retq
                 16:   mov    %eax,%esi
                     ↑ jmpq   ffffffff810e96b0 <queued_spin_lock_slowpath>
  #
  # cat ~/.perfconfig
  [annotate]

    hide_src_code = false
    show_linenr = true
  # perf annotate --stdio2 _raw_spin_lock | head -20

                 3   Disassembly of section .text:

                 5   ffffffff81868790 <_raw_spin_lock>:
                 6   _raw_spin_lock():
                 143 EXPORT_SYMBOL(_raw_spin_trylock_bh);
                 144 #endif

                 146 #ifndef CONFIG_INLINE_SPIN_LOCK
                 147 void __lockfunc _raw_spin_lock(raw_spinlock_t *lock)
                 148 {
                     → callq  __fentry__
                 150 atomic_cmpxchg():
                 187         return xadd(&v->counter, -i);
                 188 }

                 190 static __always_inline int atomic_cmpxchg(atomic_t *v, int old, int new)
                 191 {
  #
  # cat ~/.perfconfig
  [annotate]

    hide_src_code = true
    show_total_period = true
  # perf annotate --stdio2 _raw_spin_lock | head -20
                               → callq  __fentry__
                                 xor    %eax,%eax
                                 mov    $0x1,%edx
      1411316      152339        lock   cmpxchg %edx,(%rdi)
       344694           0        test   %eax,%eax
                               ↓ jne    16
        80806           0        repz   retq
                           16:   mov    %eax,%esi
                               ↑ jmpq   ffffffff810e96b0 <queued_spin_lock_slowpath>
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-nu4rxg5zkdtgs1b2gc40p7v7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-21 12:53:41 -03:00
Arnaldo Carvalho de Melo
7f0b6fde31 perf annotate: Move the default annotate options to the library 
One more thing that goes from the TUI code to be used more widely,
for instance it'll affect the default options used by:

  perf annotate --stdio2

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-0nsz0dm0akdbo30vgja2a10e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-21 12:53:40 -03:00
Arnaldo Carvalho de Melo
befd2a38a6 perf annotate: Introduce the --stdio2 output mode 
This uses the TUI augmented formatting routines, modulo interactivity.

  # perf annotate --ignore-vmlinux --stdio2 _raw_spin_lock_irqsave
  _raw_spin_lock_irqsave() /proc/kcore
  Event: cycles:ppp

  Percent

              Disassembly of section load0:

              ffffffff9a8734b0 <load0>:
                nop
                push   %rbx
   50.00        pushfq
                pop    %rax
                nop
                mov    %rax,%rbx
                cli
                nop
                xor    %eax,%eax
                mov    $0x1,%edx
   50.00        lock   cmpxchg %edx,(%rdi)
                test   %eax,%eax
              ↓ jne    2b
                mov    %rbx,%rax
                pop    %rbx
              ← retq
          2b:   mov    %eax,%esi
              → callq  queued_spin_lock_slowpath
                mov    %rbx,%rax
                pop    %rbx
              ← retq

Tested-by: Jin Yao <yao.jin@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.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-6cte5o8z84mbivbvqlg14uh1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-21 12:53:26 -03:00
Steven Rostedt (VMware)
3e1d367884 ktest: Add CONNECT_TIMEOUT to change the connection timeout time 
Before ktest issues a reboot, it will try to connect to the target machine
to make sure that it is still alive. If the target does not respond within 5
seconds, it will power cycle the box instead of issuing a reboot.

Five seconds may be too short, and ktest may unnecessarially power cycle the
box. I have found 25 seconds seems to be a better timeout for this purpose.
But even 25 may be too arbitrary. Add a CONNECT_TIMEOUT option to let the
user determine the timeout time before rebooting. By default, it has been
raised to 25 seconds.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
 2018-03-21 10:36:08 -04:00
Steven Rostedt (VMware)
9f23b129eb ktest: Wait for console process to exit 
To clean up the console processes that are forked to monitor the console,
there needs to be a waitpid().

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
 2018-03-21 10:24:20 -04:00
Arnaldo Carvalho de Melo
9b80d1f946 perf annotate: Introduce annotation_line__filter() 
Out of the TUI logic that allows toggling the presentation of source
code lines.

Will be used in the upcoming --stdio2 mode.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-g0ckz9ajy6unswrv2iy39mxk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 15:36:22 -03:00
Arnaldo Carvalho de Melo
c298304bd7 perf annotate: Use a ops table for annotation_line__write() 
To simplify the passing of arguments, the --stdio2 code will have to set
all the fields with operations printing to stdout.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-pcs3c7vdy9ucygxflo4nl1o7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 15:36:18 -03:00
Arnaldo Carvalho de Melo
a1e9b74cc2 perf annotate: Finish the generalization of annotate_browser__write() 
We pass some more callbacks and all of annotate_browser__write() seems
to be free of TUI code (except for some arrow constants, will fix).

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-5uo6yvwnxtsbe8y6v0ysaakf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:30 -03:00
Arnaldo Carvalho de Melo
2ba5eca104 perf annotate: Introduce annotation_line__print_start() out of TUI code 
For the --tui and --stdio2 cases using callbacks for print() and
set_percent_color() end up being the easiest path, real GUI remains as
an exercise.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-1o7az1ng55g2g6ppr2jpeuct@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:30 -03:00
Arnaldo Carvalho de Melo
c52202434d perf ui browser: Add vprintf() method 
We'll need it for some callbacks for the upcoming
annotation__line_print() routines.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-t3qiobj4ua38xzsq8cyw9ky5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:30 -03:00
Arnaldo Carvalho de Melo
2f025ea0ba perf annotate: Introduce annotation_line__max_percent() 
Out of the annotate_browser__write() routine, to be used in the --stdio2
mode.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-0he0wyy4haswqi1qb35x37do@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:30 -03:00
Arnaldo Carvalho de Melo
ecda45bd6c perf annotate: Introduce symbol__annotate2 method 
That does all the extended boilerplate the TUI browser did, leaving the
symbol__annotate() function to be used by the old --stdio output mode.

Now the upcoming --stdio2 output mode should just use this one to set
things up.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-e2x8wuf6gvdhzdryo229vj4i@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:30 -03:00
Arnaldo Carvalho de Melo
b8b0d81985 perf annotate: Introduce init_column_widths() method out of TUI code 
More non-TUI stuff goes to the UI-agnostic library

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-hngv7rpqvtta69ouj7ne770q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
7232bf7a89 perf annotate: Move update_column_widths() to the generic lib 
Previous patch left it where it was to ease review, move it to its
right place.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-ikdjr014p7k5kachgyjrgiey@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
9761e86e36 perf annotate: Move the column widths from the TUI to generic lib 
This also will be used in other output formats, such as --stdio2.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-86h6ftebc62ij1rx8q9zkpwk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
5bc49f6120 perf annotate: Introduce set_offsets() method out of TUI code 
More non-strictly TUI code being moved to the UI neutral annotation
library, to be used in the upcoming --stdio2 output mode.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-ek20dnd8z2y5v54pcepihybz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
1cf5f98a5e perf annotate: Move nr_{asm_}entries to struct annotation 
More non-TUI stuff.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-yd4g6q0rngq4i49hz6iymtta@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
0ca693b315 perf annotate: Move 'start' to struct annotation 
Another field that is not TUI specific.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-jj3dwswndft5mln8hu9k0idv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
4850c92e40 perf annotate: Nuke struct browser_line 
The information in there are all related to things already moved to
struct annotation, so move those members to struct annotation_line.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-uc2b9c8iocvuuvbl7hyind84@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
0db45bcfac perf annotate: Move mark_jump_targets from the TUI to the annotation library 
This also is not TUI specific, should be used in the upcoming --stdio2
mode.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-v827xec8z3hxrmgp7bwa6ohs@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
6dcd57e8ae perf annotate: Move nr_jumps to struct annotation 
This is another information that will be useful for the --stdio2 mode,
to provide symbol statistics, so move it from the TUI and change the
mark_jump_targets() method to struct annotation.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-kpgle1qxe7thajvrqleuvi80@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:29 -03:00
Arnaldo Carvalho de Melo
27feb761c7 perf annotate: Move jumps_percent_color to ui_browser 
Since all it needs is in ui_browser and annotation structs members.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-9f8c2f9aetbibcw33d615y9o@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
bc1c0f3dfa perf annotate: Move max_jump_sources to struct annotation 
This is not useful only for the TUI, we'll want to somehow mark the
--stdio2 lines with the most jump sources too.

And moving this will allow us to change some function signatures from
annotate_browser to ui_browser, reducing boilerplate.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-vyggbbqd05k3k4mvv7z9l5px@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
95aa89d92d perf annotate tui: Add browser__annotation() helper 
To reduce the boilerplate to get to the symbol being annotated from the
struct browser ->priv area.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-ficdyqhe9esjseflvkriskwn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
6af612d2b1 perf annotate: Move pcnt_with() to the annotation library 
Out of the TUI code, since now all it touches is what is in 'struct
annotation'.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-kh5bbbgd7l4agv9oc5hnw0ui@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
16932d7705 perf annotate: Stop using a global config struct 
For the TUI, that is interactive, its interesting to have a
configuration that one can go on changing and then when moving from one
symbol annotation to another symbol, the options set while browsing the
first symbol to be kept.

But since we're trying to make this code reusable by a --stdio
formatter, we better have a pointer in struct annotation and in the TUI
case set it to the global, but use something else for other cases, such
as --stdio2.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-kv1ngr159jfu5h9ddgiuwcvg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
0553e83dc1 perf annotate: Move nr_events from annotate_browser to annotation struct 
Paving the way to move more stuff out of TUI and into the generic
annotation library.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-8vqax6wgfqohelot8j8zsfvs@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
f56c083bc4 perf annotate: Move compute_ipc() to annotation library 
Out of the TUI code, as it has nothing specific to that UI and should be
used in the other output modes as well.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-0jahghvqdodb8vu2591pkv3d@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
9d6bb41d1c perf annotate: Move annotation_line array from TUI to generic code 
This is needed to reduce the differences between the TUI mode and the
other annotation UIs, next csets will move that code to the UI-neutral
annotation library. Leaving it in place for now to ease review.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-gz09ahsd5xm1eip7ura5ow6x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
0e83a7e9e5 perf annotate tui: Move have_cycles to struct annotation 
This is to pave the way to have more functions shared between TUI, stdio
and the upcoming stdio2 formatting, that will use the __scnprintf
functions used by --tui in a --stdio fashion.

This partially addresses the comments added in cset 30e863bb6f ("perf
annotate: Compute IPC and basic block cycles"):

/*
 * This should probably be in util/annotate.c to share with the tty
 * annotate, but right now we need the per byte offsets arrays,
 * which are only here.
 */

The following patches will address the rest.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-yftvybgx1s8sevs6kp1an0ft@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:28 -03:00
Arnaldo Carvalho de Melo
00ea0eb21e perf annotate tui: Use annotate_browser__cycles_width() mroe 
Instead of an open coded equivalent, will reduce a bit noise in
the following patches.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-pnwn1dg9345zawhgiorpsadf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:27 -03:00
Arnaldo Carvalho de Melo
c426e5849b perf annotate: Move cycles/IPC formatting width constants outside TUI 
These will be used in --stdio2 so lets move it first to reduce noise in
the following patches.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-fisud7pcak3prk7uwsvs3g2e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:27 -03:00
Arnaldo Carvalho de Melo
98bc80b0a1 perf annotate: Move annotation_options out of the TUI browser 
This will be useful when making parts of the TUI browser generic enough
to be used for a new stdio mode, available even when the TUI is not
built in, for explicit user decision or when the necessary library devel
files, for the slang library currently, are not available in the build
system.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.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-45twzienhz7ypbad0sbvojku@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:19:27 -03:00
Martin Vuille
555fc3b1ef perf unwind: Report error from dwfl_attach_state 
In verbose level 2, errors returned by libdw are reported in most cases,
but not when calling dwfl_attach_state.

Since elfutils v 0.160 (2014), dwfl_attach_state sets the error code to
report failure cause. On failure, log the reported error.

Signed-off-by: Martin Vuille <jpmv27@aim.com>
Reviewed-by: Kim Phillips <kim.phillips@arm.com>
Link: http://lkml.kernel.org/r/20180318175053.4222-1-jpmv27@aim.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-03-20 13:16:09 -03:00
Greg Kroah-Hartman
4958134df5 Merge 4.16-rc6 into tty-next 
We want the serial/tty fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-03-20 11:27:18 +01:00
Greg Kroah-Hartman
a8f25c36f7 Merge branch 4.16-rc6 into usb-next 
We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-03-20 09:56:08 +01:00
Luis R. Rodriguez
9952db75e0 test_firmware: modify custom fallback tests to use unique files 
Users of the custom firmware fallback interface is are not supposed to
use the firmware cache interface, this can happen if for instance the
one of the APIs which use the firmware cache is used first with one
firmware file and then the request_firmware_nowait(uevent=false) API
is used with the same file.

We'll soon become strict about this on the firmware interface to reject
such calls later, so correct the test scripts to avoid such uses as well.
We address this on the tests scripts by simply using unique names when
testing the custom fallback interface.

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-03-20 09:28:47 +01:00
Luis R. Rodriguez
b3cf21fae1 test_firmware: test three firmware kernel configs using a proc knob 
Since we now have knobs to twiddle what used to be set on kernel
configurations we can build one base kernel configuration and modify
behaviour to mimic such kernel configurations to test them.

Provided you build a kernel with:

CONFIG_TEST_FIRMWARE=y
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y

We should now be able test all possible kernel configurations
when FW_LOADER=y. Note that when FW_LOADER=m we just don't provide
the built-in functionality of the built-in firmware.

If you're on an old kernel and either don't have /proc/config.gz
(CONFIG_IKCONFIG_PROC) or haven't enabled CONFIG_FW_LOADER_USER_HELPER
we cannot run these dynamic tests, so just run both scripts just
as we used to before making blunt assumptions about your setup
and requirements exactly as we did before.

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-03-20 09:28:47 +01:00
Luis R. Rodriguez
f5a614519e test_firmware: expand on library with shared helpers 
This expands our library with as many things we could find which
both scripts we use share.

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-03-20 09:28:47 +01:00
Nicholas Piggin
dd40c5b4c9 selftests/powerpc: Add process creation benchmark 
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Add SPDX, and fixup formatting]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2018-03-20 16:47:54 +11:00
Michael S. Tsirkin
c8f06a0668 ptr_ring: fix build 
Fixes after recent use of kvmalloc

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2018-03-20 03:17:37 +02:00
John Fastabend
0dcbbf6785 bpf: sockmap sample test for bpf_msg_pull_data 
This adds an option to test the msg_pull_data helper. This
uses two options txmsg_start and txmsg_end to let the user
specify start and end bytes to pull.

The options can be used with txmsg_apply, txmsg_cork options
as well as with any of the basic tests, txmsg, txmsg_redir and
txmsg_drop (plus noisy variants) to run pull_data inline with
those tests. By giving user direct control over the variables
we can easily do negative testing as well as positive tests.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2018-03-19 21:14:41 +01:00
John Fastabend
468b3fdea8 bpf: sockmap sample support for bpf_msg_cork_bytes() 
Add sample application support for the bpf_msg_cork_bytes helper. This
lets the user specify how many bytes each verdict should apply to.

Similar to apply_bytes() tests these can be run as a stand-alone test
when used without other options or inline with other tests by using
the txmsg_cork option along with any of the basic tests txmsg,
txmsg_redir, txmsg_drop.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2018-03-19 21:14:40 +01:00
John Fastabend
1c16c3126a bpf: sockmap, add sample option to test apply_bytes helper 
This adds an option to test the apply_bytes helper. This option lets
the user specify an int on the command line specifying how much data
each verdict should apply to.

When this is set a map entry is set with the bytes input by the user
and then the specified program --txmsg or --txmsg_redir will use the
value and set the applied data. If no other option is set then a
default --txmsg_apply program is run. This program will drop pkts
if an error is detected on the bytes map lookup. Useful to verify
the map lookup and apply helper are working and causing a hard
error if it is not.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2018-03-19 21:14:40 +01:00
John Fastabend
4c4c3c276c bpf: sockmap sample, add option to attach SK_MSG program 
Add sockmap option to use SK_MSG program types.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2018-03-19 21:14:40 +01:00