From: "Naveen N. Rao" <naveen.n....@linux.vnet.ibm.com>
Introduce helper to detect ret instructions and use the same in the tui.
A helper is needed since some architectures such as powerpc have more
than one return instruction.
Signed-off-by: Naveen N. Rao <naveen.n....@linux.vnet.ibm.com>
---
tools/perf/ui/browsers/annotate.c | 20 +++++++++-----------
tools/perf/util/annotate.c | 10 ++++++++++
tools/perf/util/annotate.h | 1 +
3 files changed, 20 insertions(+), 11 deletions(-)
diff --git a/tools/perf/ui/browsers/annotate.c
b/tools/perf/ui/browsers/annotate.c
index b65a979..288200f 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -223,16 +223,14 @@ static void annotate_browser__write(struct ui_browser
*browser, void *entry, int
} else if (ins__is_call(dl->ins)) {
ui_browser__write_graph(browser,
SLSMG_RARROW_CHAR);
SLsmg_write_char(' ');
+ } else if (ins__is_ret(dl->ins)) {
+ ui_browser__write_graph(browser,
SLSMG_LARROW_CHAR);
+ SLsmg_write_char(' ');
} else {
ui_browser__write_nstring(browser, " ", 2);
}
} else {
- if (strcmp(dl->name, "retq")) {
- ui_browser__write_nstring(browser, " ", 2);
- } else {
- ui_browser__write_graph(browser,
SLSMG_LARROW_CHAR);
- SLsmg_write_char(' ');
- }
+ ui_browser__write_nstring(browser, " ", 2);
}
disasm_line__scnprintf(dl, bf, sizeof(bf),
!annotate_browser__opts.use_offset);
@@ -843,14 +841,14 @@ show_help:
ui_helpline__puts("Huh? No selection. Report to
linux-kernel@vger.kernel.org");
else if (browser->selection->offset == -1)
ui_helpline__puts("Actions are only available
for assembly lines.");
- else if (!browser->selection->ins) {
- if (strcmp(browser->selection->name, "retq"))
- goto show_sup_ins;
+ else if (!browser->selection->ins)
+ goto show_sup_ins;
+ else if (ins__is_ret(browser->selection->ins))
goto out;
- } else if (!(annotate_browser__jump(browser) ||
+ else if (!(annotate_browser__jump(browser) ||
annotate_browser__callq(browser, evsel,
hbt))) {
show_sup_ins:
- ui_helpline__puts("Actions are only available
for 'callq', 'retq' & jump instructions.");
+ ui_helpline__puts("Actions are only available
for function call/return & jump/branch instructions.");
}
continue;
case 't':
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index e0dc7b2..634daf5 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -363,6 +363,15 @@ static struct ins_ops nop_ops = {
.scnprintf = nop__scnprintf,
};
+static struct ins_ops ret_ops = {
+ .scnprintf = ins__raw_scnprintf,
+};
+
+bool ins__is_ret(const struct ins *ins)
+{
+ return ins->ops == &ret_ops;
+}
+
static struct ins instructions_x86[] = {
{ .name = "add", .ops = &mov_ops, },
{ .name = "addl", .ops = &mov_ops, },
@@ -439,6 +448,7 @@ static struct ins instructions_x86[] = {
{ .name = "xadd", .ops = &mov_ops, },
{ .name = "xbeginl", .ops = &jump_ops, },
{ .name = "xbeginq", .ops = &jump_ops, },
+ { .name = "retq", .ops = &ret_ops, },
};
static struct ins instructions_arm[] = {
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index f7b669e..488c427 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -48,6 +48,7 @@ struct ins {
bool ins__is_jump(const struct ins *ins);
bool ins__is_call(const struct ins *ins);
+bool ins__is_ret(const struct ins *ins);
int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands
*ops);
struct annotation;
--
2.5.5
