From 88a7fcf961a27fbd248e3c914fc9df8327f7cdbb Mon Sep 17 00:00:00 2001 From: Ravi Bangoria Date: Fri, 19 Aug 2016 18:29:35 +0530 Subject: [PATCH] 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 [Suggested about 'bctrl' instruction] Signed-off-by: Ravi Bangoria Cc: Alexander Shishkin Cc: Chris Riyder Cc: Hemant Kumar Cc: Jiri Olsa Cc: Markus Trippelsdorf Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Naveen N. Rao Cc: Pawel Moll Cc: Peter Zijlstra Cc: Russell King Cc: Taeung Song Link: http://lkml.kernel.org/r/1471611578-11255-5-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- 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 7a80c7362a03..60e915f392a6 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; } -- 2.30.2