From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Anton Blanchard <anton@ozlabs.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Subject: [PATCH 1/2] perf annotate: generalize handling of ret instructions
Date: Fri, 10 Jun 2016 18:32:50 +0530 [thread overview]
Message-ID: <6c96da46e8a3b44a3fdb2670897fae7a35c76460.1465563491.git.naveen.n.rao@linux.vnet.ibm.com> (raw)
Introduce helper to detect ret instructions and use the same in the tui.
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Anton Blanchard <anton@ozlabs.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@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 4fc208e..dcfaf7a 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -222,16 +222,14 @@ 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);
@@ -842,14 +840,14 @@ 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 7e5a1e8..e871b4e 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -354,6 +354,15 @@ 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[] = {
{ .name = "add", .ops = &mov_ops, },
{ .name = "addl", .ops = &mov_ops, },
@@ -444,6 +453,7 @@ static struct ins instructions[] = {
{ .name = "xadd", .ops = &mov_ops, },
{ .name = "xbeginl", .ops = &jump_ops, },
{ .name = "xbeginq", .ops = &jump_ops, },
+ { .name = "retq", .ops = &ret_ops, },
};
static int ins__key_cmp(const void *name, const void *insp)
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 9241f8c..720a4c0 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;
--
2.8.2
next reply other threads:[~2016-06-10 13:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-10 13:02 Naveen N. Rao [this message]
2016-06-10 13:02 ` [PATCH 2/2] perf annotate: add powerpc support Naveen N. Rao
2016-06-10 13:36 ` Arnaldo Carvalho de Melo
2016-06-10 14:38 ` Naveen N. Rao
2016-06-10 16:01 ` Naveen N. Rao
2016-06-14 3:40 ` Michael Ellerman
2016-06-14 12:46 ` Arnaldo Carvalho de Melo
2016-06-10 13:30 ` [PATCH 1/2] perf annotate: generalize handling of ret instructions Arnaldo Carvalho de Melo
2016-06-10 14:06 ` Naveen N. Rao
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6c96da46e8a3b44a3fdb2670897fae7a35c76460.1465563491.git.naveen.n.rao@linux.vnet.ibm.com \
--to=naveen.n.rao@linux.vnet.ibm.com \
--cc=acme@kernel.org \
--cc=ananth@in.ibm.com \
--cc=anton@ozlabs.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).