summaryrefslogtreecommitdiff
path: root/tools/perf/util/symbol.h
diff options
context:
space:
mode:
authorJin Yao <yao.jin@linux.intel.com>2019-06-28 17:22:58 +0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-07-02 12:44:19 -0300
commit0cec2447e7d209b77e52c6ec62169cc564df54e7 (patch)
tree7b91b86091f196a929318021f66ba8af2c92dcbf /tools/perf/util/symbol.h
parent0c69b93112428d43b8c103d032143ea89b895d43 (diff)
perf symbol: Create block_info structure
'perf diff' currently can only diff symbols(functions). We should expand it to diff cycles of individual programs blocks as reported by timed LBR. This would allow to identify changes in specific code accurately. We need a new structure to maintain the basic block information, such as, symbol(function), start/end address of this block, cycles. This patch creates this structure and with some ops. Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@intel.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1561713784-30533-2-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/symbol.h')
-rw-r--r--tools/perf/util/symbol.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 9a8fe012910a..12755b42ea93 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -131,6 +131,17 @@ struct mem_info {
refcount_t refcnt;
};
+struct block_info {
+ struct symbol *sym;
+ u64 start;
+ u64 end;
+ u64 cycles;
+ u64 cycles_aggr;
+ int num;
+ int num_aggr;
+ refcount_t refcnt;
+};
+
struct addr_location {
struct machine *machine;
struct thread *thread;
@@ -332,4 +343,16 @@ static inline void __mem_info__zput(struct mem_info **mi)
#define mem_info__zput(mi) __mem_info__zput(&mi)
+struct block_info *block_info__new(void);
+struct block_info *block_info__get(struct block_info *bi);
+void block_info__put(struct block_info *bi);
+
+static inline void __block_info__zput(struct block_info **bi)
+{
+ block_info__put(*bi);
+ *bi = NULL;
+}
+
+#define block_info__zput(bi) __block_info__zput(&bi)
+
#endif /* __PERF_SYMBOL */