perf sort: Introduce sort__mode variable

It's used for determining current sort mode which can be one of
NORMAL, BRANCH and new MEMORY.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1364816125-12212-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 24 insertions, 15 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index d9f2de3e81fe..c877982a64d3 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -311,7 +311,7 @@ static int process_sample_event(struct perf_tool *tool,
         if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
                 return 0;
 
-        if (sort__branch_mode == 1) {
+        if (sort__mode == SORT_MODE__BRANCH) {
                 if (perf_report__add_branch_hist_entry(tool, &al, sample,
                                                        evsel, machine)) {
                         pr_debug("problem adding lbr entry, skipping event\n");
@@ -387,7 +387,7 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
                         }
         }
 
-        if (sort__branch_mode == 1) {
+        if (sort__mode == SORT_MODE__BRANCH) {
                 if (!self->fd_pipe &&
                     !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
                         ui__error("Selected -b but no branch data. "
@@ -694,7 +694,9 @@ static int
 parse_branch_mode(const struct option *opt __maybe_unused,
                   const char *str __maybe_unused, int unset)
 {
-        sort__branch_mode = !unset;
+        int *branch_mode = opt->value;
+
+        *branch_mode = !unset;
         return 0;
 }
 
@@ -703,6 +705,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
         struct perf_session *session;
         struct stat st;
         bool has_br_stack = false;
+        int branch_mode = -1;
         int ret = -1;
         char callchain_default_opt[] = "fractal,0.5,callee";
         const char * const report_usage[] = {
@@ -799,7 +802,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
                     "Show a column with the sum of periods"),
         OPT_BOOLEAN(0, "group", &symbol_conf.event_group,
                     "Show event group information together"),
-        OPT_CALLBACK_NOOPT('b', "branch-stack", &sort__branch_mode, "",
+        OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
                     "use branch records for histogram filling", parse_branch_mode),
         OPT_STRING(0, "objdump", &objdump_path, "path",
                    "objdump binary to use for disassembly and annotations"),
@@ -849,11 +852,11 @@ repeat:
         has_br_stack = perf_header__has_feat(&session->header,
                                              HEADER_BRANCH_STACK);
 
-        if (sort__branch_mode == -1 && has_br_stack)
-                sort__branch_mode = 1;
+        if (branch_mode == -1 && has_br_stack)
+                sort__mode = SORT_MODE__BRANCH;
 
-        /* sort__branch_mode could be 0 if --no-branch-stack */
-        if (sort__branch_mode == 1) {
+        /* sort__mode could be NORMAL if --no-branch-stack */
+        if (sort__mode == SORT_MODE__BRANCH) {
                 /*
                  * if no sort_order is provided, then specify
                  * branch-mode specific order
@@ -864,7 +867,7 @@ repeat:
 
         }
         if (report.mem_mode) {
-                if (sort__branch_mode == 1) {
+                if (sort__mode == SORT_MODE__BRANCH) {
                         fprintf(stderr, "branch and mem mode incompatible\n");
                         goto error;
                 }
@@ -934,7 +937,7 @@ repeat:
 
         sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);
 
-        if (sort__branch_mode == 1) {
+        if (sort__mode == SORT_MODE__BRANCH) {
                 sort_entry__setup_elide(&sort_dso_from, symbol_conf.dso_from_list, "dso_from", stdout);
                 sort_entry__setup_elide(&sort_dso_to, symbol_conf.dso_to_list, "dso_to", stdout);
                 sort_entry__setup_elide(&sort_sym_from, symbol_conf.sym_from_list, "sym_from", stdout);
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index d88a2d0acb6d..cad8e37f05d9 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1155,7 +1155,7 @@ static struct hist_browser *hist_browser__new(struct hists *hists)
                 browser->b.refresh = hist_browser__refresh;
                 browser->b.seek = ui_browser__hists_seek;
                 browser->b.use_navkeypressed = true;
-                if (sort__branch_mode == 1)
+                if (sort__mode == SORT_MODE__BRANCH)
                         browser->has_symbols = sort_sym_from.list.next != NULL;
                 else
                         browser->has_symbols = sort_sym.list.next != NULL;
@@ -1488,7 +1488,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
                 if (!browser->has_symbols)
                         goto add_exit_option;
 
-                if (sort__branch_mode == 1) {
+                if (sort__mode == SORT_MODE__BRANCH) {
                         bi = browser->he_selection->branch_info;
                         if (browser->selection != NULL &&
                             bi &&
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 16d5e38befe5..a6ddad41d57a 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -9,7 +9,7 @@ const char	*sort_order = default_sort_order;
 int             sort__need_collapse = 0;
 int             sort__has_parent = 0;
 int             sort__has_sym = 0;
-int             sort__branch_mode = -1; /* -1 = means not set */
+enum sort_mode  sort__mode = SORT_MODE__NORMAL;
 
 enum sort_type  sort__first_dimension;
 
@@ -943,7 +943,7 @@ int sort_dimension__add(const char *tok)
                 if (strncasecmp(tok, sd->name, strlen(tok)))
                         continue;
 
-                if (sort__branch_mode != 1)
+                if (sort__mode != SORT_MODE__BRANCH)
                         return -EINVAL;
 
                 if (sd->entry == &sort_sym_from || sd->entry == &sort_sym_to)
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index f24bdf64238c..39ff4b86ae84 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -32,7 +32,7 @@ extern const char default_sort_order[];
 extern int sort__need_collapse;
 extern int sort__has_parent;
 extern int sort__has_sym;
-extern int sort__branch_mode;
+extern enum sort_mode sort__mode;
 extern struct sort_entry sort_comm;
 extern struct sort_entry sort_dso;
 extern struct sort_entry sort_sym;
@@ -123,6 +123,12 @@ static inline void hist_entry__add_pair(struct hist_entry *he,
         list_add_tail(&he->pairs.head, &pair->pairs.node);
 }
 
+enum sort_mode {
+        SORT_MODE__NORMAL,
+        SORT_MODE__BRANCH,
+        SORT_MODE__MEMORY,
+};
+
 enum sort_type {
         /* common sort keys */
         SORT_PID,