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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-05-11 17:21:09 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-05-11 17:21:09 -0300
commita43712c4720c8df4bad7d3760c67086168553b05 (patch)
treec8c3f610c26c507529fd6d7696a261b547351d18 /tools/perf/util/annotate.c
parent6de783b6f50f7f1db18a3fda0aa34b2e84b5771d (diff)
perf annotate: Resolve symbols using objdump comment for single op ins
Starting with inc, incl, dec, decl. Requested-by: Linus Torvalds <torvalds@linux-foundation.org> 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-jvh0jspefr5jyn0l7qko12st@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/annotate.c')
-rw-r--r--tools/perf/util/annotate.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 82c7f630f8a..a6109dc3a81 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -205,6 +205,47 @@ static struct ins_ops mov_ops = {
.scnprintf = mov__scnprintf,
};
+static int dec__parse(struct ins_operands *ops)
+{
+ char *target, *comment, *s, prev;
+
+ target = s = ops->raw;
+
+ while (s[0] != '\0' && !isspace(s[0]))
+ ++s;
+ prev = *s;
+ *s = '\0';
+
+ ops->target.raw = strdup(target);
+ *s = prev;
+
+ if (ops->target.raw == NULL)
+ return -1;
+
+ comment = strchr(s, '#');
+ if (comment == NULL)
+ return 0;
+
+ while (comment[0] != '\0' && isspace(comment[0]))
+ ++comment;
+
+ comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
+
+ return 0;
+}
+
+static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops)
+{
+ return scnprintf(bf, size, "%-6.6s %s", ins->name,
+ ops->target.name ?: ops->target.raw);
+}
+
+static struct ins_ops dec_ops = {
+ .parse = dec__parse,
+ .scnprintf = dec__scnprintf,
+};
+
static int nop__scnprintf(struct ins *ins __used, char *bf, size_t size,
struct ins_operands *ops __used)
{
@@ -232,7 +273,11 @@ static struct ins instructions[] = {
{ .name = "cmpq", .ops = &mov_ops, },
{ .name = "cmpw", .ops = &mov_ops, },
{ .name = "cmpxch", .ops = &mov_ops, },
+ { .name = "dec", .ops = &dec_ops, },
+ { .name = "decl", .ops = &dec_ops, },
{ .name = "imul", .ops = &mov_ops, },
+ { .name = "inc", .ops = &dec_ops, },
+ { .name = "incl", .ops = &dec_ops, },
{ .name = "ja", .ops = &jump_ops, },
{ .name = "jae", .ops = &jump_ops, },
{ .name = "jb", .ops = &jump_ops, },