Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-30 08:01:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

perf annotate: Support jump instruction with target as second operand

Browse Source 
Architectures like PowerPC have jump instructions that includes a target
address as a second operand. For example, 'bne cr7,0xc0000000000f6154'.
Add support for such instruction in perf annotate.

objdump o/p:
  c0000000000f6140:   ld     r9,1032(r31)
  c0000000000f6144:   cmpdi  cr7,r9,0
  c0000000000f6148:   bne    cr7,0xc0000000000f6154
  c0000000000f614c:   ld     r9,2312(r30)
  c0000000000f6150:   std    r9,1032(r31)
  c0000000000f6154:   ld     r9,88(r31)

Corresponding perf annotate o/p:

Before patch:
         ld     r9,1032(r31)
         cmpdi  cr7,r9,0
      v  bne    3ffffffffff09f2c
         ld     r9,2312(r30)
         std    r9,1032(r31)
  74:    ld     r9,88(r31)

After patch:
         ld     r9,1032(r31)
         cmpdi  cr7,r9,0
      v  bne    74
         ld     r9,2312(r30)
         std    r9,1032(r31)
  74:    ld     r9,88(r31)

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Chris Riyder <chris.ryder@arm.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/1480953407-7605-2-git-send-email-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ravi Bangoria 2016-12-05 21:26:46 +05:30 committed by Arnaldo Carvalho de Melo
parent 23dc4f1586
commit 3ee2eb6da2
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/perf/util/annotate.c
View File

@ -223,8 +223,12 @@ bool ins__is_call(const struct ins *ins)
static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map *map __maybe_unused)
{
const char *s = strchr(ops->raw, '+');
const char *c = strchr(ops->raw, ',');
ops->target.addr = strtoull(ops->raw, NULL, 16);
if (c++ != NULL)
ops->target.addr = strtoull(c, NULL, 16);
else
ops->target.addr = strtoull(ops->raw, NULL, 16);
if (s++ != NULL)
ops->target.offset = strtoull(s, NULL, 16);