[tip:perf/core] perf annotate: Disambiguage offsets and addresses in operands

tip-bot for Arnaldo Carvalho de Melo
2012-04-27T08:44:28Z

Commit-ID: 44d1a3edfbd65f9da6725921e2425b10477772d8
Gitweb: http://git.kernel.org/tip/44d1a3edfbd65f9da6725921e2425b10477772d8
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Wed, 25 Apr 2012 08:00:23 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 25 Apr 2012 08:00:23 -0300

perf annotate: Disambiguage offsets and addresses in operands

We were using ins_ops->target for callq addresses and jump offsets,
disambiguate by having ins_ops->target.addr and ins_ops->target.offset.

For jumps we'll need both to fixup lines that don't have an offset on
the <> part.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3nlcmstua75u07ao7wja1rwx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/browsers/annotate.c | 14 +++++++-------
tools/perf/util/annotate.c | 20 ++++++++++----------
tools/perf/util/annotate.h | 7 +++++--
3 files changed, 22 insertions(+), 19 deletions(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 4c83fe3..73e1ef0 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -112,7 +112,7 @@ static void annotate_browser__write(struct ui_browser *self, void *entry, int ro
ui_browser__set_color(self, color);
if (dl->ins && dl->ins->ops->scnprintf) {
if (ins__is_jump(dl->ins)) {
- bool fwd = dl->ops.target > (u64)dl->offset;
+ bool fwd = dl->ops.target.offset > (u64)dl->offset;

ui_browser__write_graph(self, fwd ? SLSMG_DARROW_CHAR :
SLSMG_UARROW_CHAR);
@@ -156,7 +156,7 @@ static void annotate_browser__draw_current_loop(struct ui_browser *browser)
if (!pos->ins || !ins__is_jump(pos->ins))
continue;

- target = ab->offsets[pos->ops.target];
+ target = ab->offsets[pos->ops.target.offset];
if (!target)
continue;

@@ -360,7 +360,7 @@ static bool annotate_browser__callq(struct annotate_browser *browser,
if (!ins__is_call(dl->ins))
return false;

- ip = ms->map->map_ip(ms->map, dl->ops.target);
+ ip = ms->map->map_ip(ms->map, dl->ops.target.addr);
target = map__find_symbol(ms->map, ip, NULL);
if (target == NULL) {
ui_helpline__puts("The called function was not found.");
@@ -411,7 +411,7 @@ static bool annotate_browser__jump(struct annotate_browser *browser)
if (!ins__is_jump(dl->ins))
return false;

- dl = annotate_browser__find_offset(browser, dl->ops.target, &idx);
+ dl = annotate_browser__find_offset(browser, dl->ops.target.offset, &idx);
if (dl == NULL) {
ui_helpline__puts("Invallid jump offset");
return true;
@@ -692,14 +692,14 @@ static void annotate_browser__mark_jump_targets(struct annotate_browser *browser
if (!dl || !dl->ins || !ins__is_jump(dl->ins))
continue;

- if (dl->ops.target >= size) {
+ if (dl->ops.target.offset >= size) {
ui__error("jump to after symbol!\n"
"size: %zx, jump target: %" PRIx64,
- size, dl->ops.target);
+ size, dl->ops.target.offset);
continue;
}

- dlt = browser->offsets[dl->ops.target];
+ dlt = browser->offsets[dl->ops.target.offset];
/*
* FIXME: Oops, no jump target? Buggy disassembler? Or do we
* have to adjust to the previous offset?
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index b07d7d1..e1e7d0e 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -22,7 +22,7 @@ static int call__parse(struct ins_operands *ops)
{
char *endptr, *tok, *name;

- ops->target = strtoull(ops->raw, &endptr, 16);
+ ops->target.addr = strtoull(ops->raw, &endptr, 16);

name = strchr(endptr, '<');
if (name == NULL)
@@ -35,17 +35,17 @@ static int call__parse(struct ins_operands *ops)
return -1;

*tok = '\0';
- ops->target_name = strdup(name);
+ ops->target.name = strdup(name);
*tok = '>';

- return ops->target_name == NULL ? -1 : 0;
+ return ops->target.name == NULL ? -1 : 0;

indirect_call:
tok = strchr(endptr, '*');
if (tok == NULL)
return -1;

- ops->target = strtoull(tok + 1, NULL, 16);
+ ops->target.addr = strtoull(tok + 1, NULL, 16);
return 0;
}

@@ -55,10 +55,10 @@ static int call__scnprintf(struct ins *ins, char *bf, size_t size,
if (addrs)
return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);

- if (ops->target_name)
- return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target_name);
+ if (ops->target.name)
+ return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);

- return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target);
+ return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
}

static struct ins_ops call_ops = {
@@ -78,7 +78,7 @@ static int jump__parse(struct ins_operands *ops)
if (s++ == NULL)
return -1;

- ops->target = strtoll(s, NULL, 16);
+ ops->target.offset = strtoll(s, NULL, 16);
return 0;
}

@@ -88,7 +88,7 @@ static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
if (addrs)
return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);

- return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target);
+ return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
}

static struct ins_ops jump_ops = {
@@ -289,7 +289,7 @@ void disasm_line__free(struct disasm_line *dl)
{
free(dl->line);
free(dl->name);
- free(dl->ops.target_name);
+ free(dl->ops.target.name);
free(dl);
}

diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 8a8af0d..2b9e3e0 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -11,8 +11,11 @@ struct ins;

struct ins_operands {
char *raw;
- char *target_name;
- u64 target;
+ struct {
+ char *name;
+ u64 offset;
+ u64 addr;
+ } target;
};

struct ins_ops {