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| Started by | Andi Kleen <andi@firstfloor.org> |
|---|---|
| First post | 2016-05-20 22:20 +0200 |
| Last post | 2016-05-24 07:50 +0200 |
| Articles | 4 — 4 participants |
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[PATCH] perf, tools, report: Add srcline_from/to branch sort keys Andi Kleen <andi@firstfloor.org> - 2016-05-20 22:20 +0200
Re: [PATCH] perf, tools, report: Add srcline_from/to branch sort keys Jiri Olsa <jolsa@redhat.com> - 2016-05-21 14:10 +0200
Re: [PATCH] perf, tools, report: Add srcline_from/to branch sort keys Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-23 16:30 +0200
[tip:perf/urgent] perf report: Add srcline_from/to branch sort keys tip-bot for Andi Kleen <tipbot@zytor.com> - 2016-05-24 07:50 +0200
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2016-05-20 22:20 +0200 |
| Subject | [PATCH] perf, tools, report: Add srcline_from/to branch sort keys |
| Message-ID | <rAZ3Q-1Wa-11@gated-at.bofh.it> |
From: Andi Kleen <ak@linux.intel.com>
Add srcline_from and srcline_to branch sort keys that allow
to show the source lines of a branch. That makes it much easier
to track down where particular branches happen in the program,
for example to examine branch mispredictions, or to associate
it with cycle counts:
% perf record -b -e cycles:p ./tcall
% perf report --sort srcline_from,srcline_to,mispredict
...
15.10% tcall.c:18 tcall.c:10 N
14.83% tcall.c:11 tcall.c:5 N
14.12% tcall.c:7 tcall.c:12 N
14.04% tcall.c:12 tcall.c:5 N
12.42% tcall.c:17 tcall.c:18 N
12.39% tcall.c:7 tcall.c:13 N
12.27% tcall.c:13 tcall.c:17 N
...
% perf report --sort srcline_from,srcline_to,cycles
...
17.12% tcall.c:18 tcall.c:11 1
17.01% tcall.c:12 tcall.c:6 1
16.98% tcall.c:11 tcall.c:6 1
15.91% tcall.c:17 tcall.c:18 1
6.38% tcall.c:7 tcall.c:17 7
4.80% tcall.c:7 tcall.c:12 8
4.21% tcall.c:7 tcall.c:17 8
2.67% tcall.c:7 tcall.c:12 7
2.62% tcall.c:7 tcall.c:12 10
2.10% tcall.c:7 tcall.c:17 9
1.58% tcall.c:7 tcall.c:12 6
1.44% tcall.c:7 tcall.c:12 5
1.38% tcall.c:7 tcall.c:12 9
1.06% tcall.c:7 tcall.c:17 13
1.05% tcall.c:7 tcall.c:12 4
1.01% tcall.c:7 tcall.c:17 6
Open issues:
- Some kernel symbols get misresolved.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/Documentation/perf-report.txt | 3 +-
tools/perf/util/hist.c | 9 ++++
tools/perf/util/hist.h | 2 +
tools/perf/util/sort.c | 84 ++++++++++++++++++++++++++++++++
tools/perf/util/sort.h | 2 +
tools/perf/util/symbol.h | 2 +
6 files changed, 101 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index ebaf849e30ef..b588f5fcab84 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -103,12 +103,13 @@ OPTIONS
If --branch-stack option is used, following sort keys are also
available:
- dso_from, dso_to, symbol_from, symbol_to, mispredict.
- dso_from: name of library or module branched from
- dso_to: name of library or module branched to
- symbol_from: name of function branched from
- symbol_to: name of function branched to
+ - srcline_from: source file and line branched from
+ - srcline_to: source file and line branched to
- mispredict: "N" for predicted branch, "Y" for mispredicted branch
- in_tx: branch in TSX transaction
- abort: TSX transaction abort.
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cfab531437c7..d1f19e0012d4 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -117,6 +117,13 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
hists__set_unres_dso_col_len(hists, HISTC_DSO_TO);
}
+
+ if (h->branch_info->srcline_from)
+ hists__new_col_len(hists, HISTC_SRCLINE_FROM,
+ strlen(h->branch_info->srcline_from));
+ if (h->branch_info->srcline_to)
+ hists__new_col_len(hists, HISTC_SRCLINE_TO,
+ strlen(h->branch_info->srcline_to));
}
if (h->mem_info) {
@@ -1042,6 +1049,8 @@ void hist_entry__delete(struct hist_entry *he)
if (he->branch_info) {
map__zput(he->branch_info->from.map);
map__zput(he->branch_info->to.map);
+ free_srcline(he->branch_info->srcline_from);
+ free_srcline(he->branch_info->srcline_to);
zfree(&he->branch_info);
}
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 0f84bfb42bb1..7b54ccf1b737 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -52,6 +52,8 @@ enum hist_column {
HISTC_MEM_IADDR_SYMBOL,
HISTC_TRANSACTION,
HISTC_CYCLES,
+ HISTC_SRCLINE_FROM,
+ HISTC_SRCLINE_TO,
HISTC_TRACE,
HISTC_NR_COLS, /* Last entry */
};
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 20e69edd5006..c4e9bd70723c 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -353,6 +353,88 @@ struct sort_entry sort_srcline = {
.se_width_idx = HISTC_SRCLINE,
};
+/* --sort srcline_from */
+
+static int64_t
+sort__srcline_from_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ if (!left->branch_info->srcline_from) {
+ struct map *map = left->branch_info->from.map;
+ if (!map)
+ left->branch_info->srcline_from = SRCLINE_UNKNOWN;
+ else
+ left->branch_info->srcline_from = get_srcline(map->dso,
+ map__rip_2objdump(map,
+ left->branch_info->from.al_addr),
+ left->branch_info->from.sym, true);
+ }
+ if (!right->branch_info->srcline_from) {
+ struct map *map = right->branch_info->from.map;
+ if (!map)
+ right->branch_info->srcline_from = SRCLINE_UNKNOWN;
+ else
+ right->branch_info->srcline_from = get_srcline(map->dso,
+ map__rip_2objdump(map,
+ right->branch_info->from.al_addr),
+ right->branch_info->from.sym, true);
+ }
+ return strcmp(right->branch_info->srcline_from, left->branch_info->srcline_from);
+}
+
+static int hist_entry__srcline_from_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ return repsep_snprintf(bf, size, "%-*.*s", width, width, he->branch_info->srcline_from);
+}
+
+struct sort_entry sort_srcline_from = {
+ .se_header = "From Source:Line",
+ .se_cmp = sort__srcline_from_cmp,
+ .se_snprintf = hist_entry__srcline_from_snprintf,
+ .se_width_idx = HISTC_SRCLINE_FROM,
+};
+
+/* --sort srcline_to */
+
+static int64_t
+sort__srcline_to_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ if (!left->branch_info->srcline_to) {
+ struct map *map = left->branch_info->to.map;
+ if (!map)
+ left->branch_info->srcline_to = SRCLINE_UNKNOWN;
+ else
+ left->branch_info->srcline_to = get_srcline(map->dso,
+ map__rip_2objdump(map,
+ left->branch_info->to.al_addr),
+ left->branch_info->from.sym, true);
+ }
+ if (!right->branch_info->srcline_to) {
+ struct map *map = right->branch_info->to.map;
+ if (!map)
+ right->branch_info->srcline_to = SRCLINE_UNKNOWN;
+ else
+ right->branch_info->srcline_to = get_srcline(map->dso,
+ map__rip_2objdump(map,
+ right->branch_info->to.al_addr),
+ right->branch_info->to.sym, true);
+ }
+ return strcmp(right->branch_info->srcline_to, left->branch_info->srcline_to);
+}
+
+static int hist_entry__srcline_to_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ return repsep_snprintf(bf, size, "%-*.*s", width, width, he->branch_info->srcline_to);
+}
+
+struct sort_entry sort_srcline_to = {
+ .se_header = "To Source:Line",
+ .se_cmp = sort__srcline_to_cmp,
+ .se_snprintf = hist_entry__srcline_to_snprintf,
+ .se_width_idx = HISTC_SRCLINE_TO,
+};
+
/* --sort srcfile */
static char no_srcfile[1];
@@ -1347,6 +1429,8 @@ static struct sort_dimension bstack_sort_dimensions[] = {
DIM(SORT_IN_TX, "in_tx", sort_in_tx),
DIM(SORT_ABORT, "abort", sort_abort),
DIM(SORT_CYCLES, "cycles", sort_cycles),
+ DIM(SORT_SRCLINE_FROM, "srcline_from", sort_srcline_from),
+ DIM(SORT_SRCLINE_TO, "srcline_to", sort_srcline_to),
};
#undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 42927f448bcb..ebb59cacd092 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -215,6 +215,8 @@ enum sort_type {
SORT_ABORT,
SORT_IN_TX,
SORT_CYCLES,
+ SORT_SRCLINE_FROM,
+ SORT_SRCLINE_TO,
/* memory mode specific sort keys */
__SORT_MEMORY_MODE,
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 2b5e4ed76fcb..f27fe93988ce 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -183,6 +183,8 @@ struct branch_info {
struct addr_map_symbol from;
struct addr_map_symbol to;
struct branch_flags flags;
+ char *srcline_from;
+ char *srcline_to;
};
struct mem_info {
--
2.5.5
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| From | Jiri Olsa <jolsa@redhat.com> |
|---|---|
| Date | 2016-05-21 14:10 +0200 |
| Message-ID | <rBdTc-3lL-5@gated-at.bofh.it> |
| In reply to | #1404706 |
On Fri, May 20, 2016 at 01:15:08PM -0700, Andi Kleen wrote: > From: Andi Kleen <ak@linux.intel.com> > > Add srcline_from and srcline_to branch sort keys that allow > to show the source lines of a branch. That makes it much easier > to track down where particular branches happen in the program, > for example to examine branch mispredictions, or to associate > it with cycle counts: > > % perf record -b -e cycles:p ./tcall > % perf report --sort srcline_from,srcline_to,mispredict > ... > 15.10% tcall.c:18 tcall.c:10 N > 14.83% tcall.c:11 tcall.c:5 N > 14.12% tcall.c:7 tcall.c:12 N > 14.04% tcall.c:12 tcall.c:5 N > 12.42% tcall.c:17 tcall.c:18 N > 12.39% tcall.c:7 tcall.c:13 N > 12.27% tcall.c:13 tcall.c:17 N > ... > > % perf report --sort srcline_from,srcline_to,cycles > ... > 17.12% tcall.c:18 tcall.c:11 1 > 17.01% tcall.c:12 tcall.c:6 1 > 16.98% tcall.c:11 tcall.c:6 1 > 15.91% tcall.c:17 tcall.c:18 1 > 6.38% tcall.c:7 tcall.c:17 7 > 4.80% tcall.c:7 tcall.c:12 8 > 4.21% tcall.c:7 tcall.c:17 8 > 2.67% tcall.c:7 tcall.c:12 7 > 2.62% tcall.c:7 tcall.c:12 10 > 2.10% tcall.c:7 tcall.c:17 9 > 1.58% tcall.c:7 tcall.c:12 6 > 1.44% tcall.c:7 tcall.c:12 5 > 1.38% tcall.c:7 tcall.c:12 9 > 1.06% tcall.c:7 tcall.c:17 13 > 1.05% tcall.c:7 tcall.c:12 4 > 1.01% tcall.c:7 tcall.c:17 6 > > Open issues: > - Some kernel symbols get misresolved. Acked-by: Jiri Olsa <jolsa@kernel.org> thanks, jirka
[toc] | [prev] | [next] | [standalone]
| From | Arnaldo Carvalho de Melo <acme@kernel.org> |
|---|---|
| Date | 2016-05-23 16:30 +0200 |
| Message-ID | <rBZ1L-6XG-13@gated-at.bofh.it> |
| In reply to | #1404834 |
Em Sat, May 21, 2016 at 02:01:51PM +0200, Jiri Olsa escreveu: > On Fri, May 20, 2016 at 01:15:08PM -0700, Andi Kleen wrote: > > From: Andi Kleen <ak@linux.intel.com> > > Acked-by: Jiri Olsa <jolsa@kernel.org> Thanks, applied
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| From | tip-bot for Andi Kleen <tipbot@zytor.com> |
|---|---|
| Date | 2016-05-24 07:50 +0200 |
| Subject | [tip:perf/urgent] perf report: Add srcline_from/to branch sort keys |
| Message-ID | <rCdo6-7F4-1@gated-at.bofh.it> |
| In reply to | #1404706 |
Commit-ID: 508be0dfe6287d4e6452f5a1dc08856df74cb217
Gitweb: http://git.kernel.org/tip/508be0dfe6287d4e6452f5a1dc08856df74cb217
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Fri, 20 May 2016 13:15:08 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 23 May 2016 11:25:16 -0300
perf report: Add srcline_from/to branch sort keys
Add "srcline_from" and "srcline_to" branch sort keys that allow to show
the source lines of a branch.
That makes it much easier to track down where particular branches happen
in the program, for example to examine branch mispredictions, or to
associate it with cycle counts:
% perf record -b -e cycles:p ./tcall
% perf report --sort srcline_from,srcline_to,mispredict
...
15.10% tcall.c:18 tcall.c:10 N
14.83% tcall.c:11 tcall.c:5 N
14.12% tcall.c:7 tcall.c:12 N
14.04% tcall.c:12 tcall.c:5 N
12.42% tcall.c:17 tcall.c:18 N
12.39% tcall.c:7 tcall.c:13 N
12.27% tcall.c:13 tcall.c:17 N
...
% perf report --sort srcline_from,srcline_to,cycles
...
17.12% tcall.c:18 tcall.c:11 1
17.01% tcall.c:12 tcall.c:6 1
16.98% tcall.c:11 tcall.c:6 1
15.91% tcall.c:17 tcall.c:18 1
6.38% tcall.c:7 tcall.c:17 7
4.80% tcall.c:7 tcall.c:12 8
4.21% tcall.c:7 tcall.c:17 8
2.67% tcall.c:7 tcall.c:12 7
2.62% tcall.c:7 tcall.c:12 10
2.10% tcall.c:7 tcall.c:17 9
1.58% tcall.c:7 tcall.c:12 6
1.44% tcall.c:7 tcall.c:12 5
1.38% tcall.c:7 tcall.c:12 9
1.06% tcall.c:7 tcall.c:17 13
1.05% tcall.c:7 tcall.c:12 4
1.01% tcall.c:7 tcall.c:17 6
Open issues:
- Some kernel symbols get misresolved.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/1463775308-32748-1-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-report.txt | 3 +-
tools/perf/util/hist.c | 9 ++++
tools/perf/util/hist.h | 2 +
tools/perf/util/sort.c | 84 ++++++++++++++++++++++++++++++++
tools/perf/util/sort.h | 2 +
tools/perf/util/symbol.h | 2 +
6 files changed, 101 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 496d42c..9cbddc2 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -103,12 +103,13 @@ OPTIONS
If --branch-stack option is used, following sort keys are also
available:
- dso_from, dso_to, symbol_from, symbol_to, mispredict.
- dso_from: name of library or module branched from
- dso_to: name of library or module branched to
- symbol_from: name of function branched from
- symbol_to: name of function branched to
+ - srcline_from: source file and line branched from
+ - srcline_to: source file and line branched to
- mispredict: "N" for predicted branch, "Y" for mispredicted branch
- in_tx: branch in TSX transaction
- abort: TSX transaction abort.
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cfab531..d1f19e0 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -117,6 +117,13 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
hists__set_unres_dso_col_len(hists, HISTC_DSO_TO);
}
+
+ if (h->branch_info->srcline_from)
+ hists__new_col_len(hists, HISTC_SRCLINE_FROM,
+ strlen(h->branch_info->srcline_from));
+ if (h->branch_info->srcline_to)
+ hists__new_col_len(hists, HISTC_SRCLINE_TO,
+ strlen(h->branch_info->srcline_to));
}
if (h->mem_info) {
@@ -1042,6 +1049,8 @@ void hist_entry__delete(struct hist_entry *he)
if (he->branch_info) {
map__zput(he->branch_info->from.map);
map__zput(he->branch_info->to.map);
+ free_srcline(he->branch_info->srcline_from);
+ free_srcline(he->branch_info->srcline_to);
zfree(&he->branch_info);
}
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 0f84bfb..7b54ccf 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -52,6 +52,8 @@ enum hist_column {
HISTC_MEM_IADDR_SYMBOL,
HISTC_TRANSACTION,
HISTC_CYCLES,
+ HISTC_SRCLINE_FROM,
+ HISTC_SRCLINE_TO,
HISTC_TRACE,
HISTC_NR_COLS, /* Last entry */
};
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 20e69ed..c4e9bd7 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -353,6 +353,88 @@ struct sort_entry sort_srcline = {
.se_width_idx = HISTC_SRCLINE,
};
+/* --sort srcline_from */
+
+static int64_t
+sort__srcline_from_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ if (!left->branch_info->srcline_from) {
+ struct map *map = left->branch_info->from.map;
+ if (!map)
+ left->branch_info->srcline_from = SRCLINE_UNKNOWN;
+ else
+ left->branch_info->srcline_from = get_srcline(map->dso,
+ map__rip_2objdump(map,
+ left->branch_info->from.al_addr),
+ left->branch_info->from.sym, true);
+ }
+ if (!right->branch_info->srcline_from) {
+ struct map *map = right->branch_info->from.map;
+ if (!map)
+ right->branch_info->srcline_from = SRCLINE_UNKNOWN;
+ else
+ right->branch_info->srcline_from = get_srcline(map->dso,
+ map__rip_2objdump(map,
+ right->branch_info->from.al_addr),
+ right->branch_info->from.sym, true);
+ }
+ return strcmp(right->branch_info->srcline_from, left->branch_info->srcline_from);
+}
+
+static int hist_entry__srcline_from_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ return repsep_snprintf(bf, size, "%-*.*s", width, width, he->branch_info->srcline_from);
+}
+
+struct sort_entry sort_srcline_from = {
+ .se_header = "From Source:Line",
+ .se_cmp = sort__srcline_from_cmp,
+ .se_snprintf = hist_entry__srcline_from_snprintf,
+ .se_width_idx = HISTC_SRCLINE_FROM,
+};
+
+/* --sort srcline_to */
+
+static int64_t
+sort__srcline_to_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ if (!left->branch_info->srcline_to) {
+ struct map *map = left->branch_info->to.map;
+ if (!map)
+ left->branch_info->srcline_to = SRCLINE_UNKNOWN;
+ else
+ left->branch_info->srcline_to = get_srcline(map->dso,
+ map__rip_2objdump(map,
+ left->branch_info->to.al_addr),
+ left->branch_info->from.sym, true);
+ }
+ if (!right->branch_info->srcline_to) {
+ struct map *map = right->branch_info->to.map;
+ if (!map)
+ right->branch_info->srcline_to = SRCLINE_UNKNOWN;
+ else
+ right->branch_info->srcline_to = get_srcline(map->dso,
+ map__rip_2objdump(map,
+ right->branch_info->to.al_addr),
+ right->branch_info->to.sym, true);
+ }
+ return strcmp(right->branch_info->srcline_to, left->branch_info->srcline_to);
+}
+
+static int hist_entry__srcline_to_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ return repsep_snprintf(bf, size, "%-*.*s", width, width, he->branch_info->srcline_to);
+}
+
+struct sort_entry sort_srcline_to = {
+ .se_header = "To Source:Line",
+ .se_cmp = sort__srcline_to_cmp,
+ .se_snprintf = hist_entry__srcline_to_snprintf,
+ .se_width_idx = HISTC_SRCLINE_TO,
+};
+
/* --sort srcfile */
static char no_srcfile[1];
@@ -1347,6 +1429,8 @@ static struct sort_dimension bstack_sort_dimensions[] = {
DIM(SORT_IN_TX, "in_tx", sort_in_tx),
DIM(SORT_ABORT, "abort", sort_abort),
DIM(SORT_CYCLES, "cycles", sort_cycles),
+ DIM(SORT_SRCLINE_FROM, "srcline_from", sort_srcline_from),
+ DIM(SORT_SRCLINE_TO, "srcline_to", sort_srcline_to),
};
#undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 42927f4..ebb59ca 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -215,6 +215,8 @@ enum sort_type {
SORT_ABORT,
SORT_IN_TX,
SORT_CYCLES,
+ SORT_SRCLINE_FROM,
+ SORT_SRCLINE_TO,
/* memory mode specific sort keys */
__SORT_MEMORY_MODE,
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index fa41534..b10d558 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -186,6 +186,8 @@ struct branch_info {
struct addr_map_symbol from;
struct addr_map_symbol to;
struct branch_flags flags;
+ char *srcline_from;
+ char *srcline_to;
};
struct mem_info {
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