Jin Yao
80f62589fa
perf annotate: Fix broken arrow at row 0 connecting jmp instruction to its target
...
When the jump instruction is displayed at the row 0 in annotate view,
the arrow is broken. An example:
16.86 │ ┌──je 82
0.01 │ movsd (%rsp),%xmm0
│ movsd 0x8(%rsp),%xmm4
│ movsd 0x8(%rsp),%xmm1
│ movsd (%rsp),%xmm3
│ divsd %xmm4,%xmm0
│ divsd %xmm3,%xmm1
│ movsd (%rsp),%xmm2
│ addsd %xmm1,%xmm0
│ addsd %xmm2,%xmm0
│ movsd %xmm0,(%rsp)
│82: sub $0x1,%ebx
83.03 │ ↑ jne 38
│ add $0x10,%rsp
│ xor %eax,%eax
│ pop %rbx
│ ← retq
The patch increments the row number before checking with 0.
Signed-off-by: Yao Jin <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Fixes: 944e1abed9e1 ("perf ui browser: Add method to draw up/down arrow line")
Link: http://lkml.kernel.org/r/1496901704-30275-1-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-10 16:36:40 -03:00
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