Commit-ID: 88a7fcf961a27fbd248e3c914fc9df8327f7cdbb
Gitweb: http://git.kernel.org/tip/88a7fcf961a27fbd248e3c914fc9df8327f7cdbb
Author: Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxxxxxxx>
AuthorDate: Fri, 19 Aug 2016 18:29:35 +0530
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 20 Sep 2016 12:28:29 -0300
perf annotate: Do not ignore call instruction with indirect target
Do not ignore call instruction with indirect target when its already
identified as a call. This is an extension of commit e8ea1561952b ("perf
annotate: Use raw form for register indirect call instructions") to
generalize annotation for all instructions with indirect calls.
This is needed for certain powerpc call instructions that use address in
a register (such as bctrl, btarl, ...).
Apart from that, when kcore is used to disassemble function, all call
instructions were ignored. This patch will fix it as a side effect by
not ignoring them. For example,
Before (with kcore):
mov %r13,%rdi
callq 0xffffffff811a7e70
^ jmpq 64
mov %gs:0x7ef41a6e(%rip),%al
After (with kcore):
mov %r13,%rdi
> callq 0xffffffff811a7e70
^ jmpq 64
mov %gs:0x7ef41a6e(%rip),%al
Suggested-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
[Suggested about 'bctrl' instruction]
Signed-off-by: Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Chris Riyder <chris.ryder@xxxxxxx>
Cc: Hemant Kumar <hemant@xxxxxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Markus Trippelsdorf <markus@xxxxxxxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Cc: Pawel Moll <pawel.moll@xxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Cc: Taeung Song <treeze.taeung@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1471611578-11255-5-git-send-email-ravi.bangoria@xxxxxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/annotate.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 7a80c73..60e915f 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -82,16 +82,12 @@ static int call__parse(struct ins_operands *ops)
return ops->target.name == NULL ? -1 : 0;
indirect_call:
- tok = strchr(endptr, '(');
- if (tok != NULL) {
+ tok = strchr(endptr, '*');
+ if (tok == NULL) {
ops->target.addr = 0;
return 0;
}
- tok = strchr(endptr, '*');
- if (tok == NULL)
- return -1;
-
ops->target.addr = strtoull(tok + 1, NULL, 16);
return 0;
}
--
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