perf annotate: Add symbol__annotate function

Add symbol__annotate function to have generic annotation function to be
called for all annotation sources.

It calls the generic annotation init and then the specific annotation
data retrieval function.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 33 insertions, 25 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index e8b69001229d..f0093918882d 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1425,13 +1425,11 @@ static const char *annotate__norm_arch(const char *arch_name)
         return normalize_arch((char *)arch_name);
 }
 
-int symbol__disassemble(struct symbol *sym, struct map *map,
-                        const char *arch_name, size_t privsize,
-                        struct arch **parch, char *cpuid)
+static int symbol__disassemble(struct symbol *sym, struct map *map,
+                               size_t privsize, struct arch *arch)
 {
         struct dso *dso = map->dso;
         char command[PATH_MAX * 2];
-        struct arch *arch = NULL;
         FILE *file;
         char symfs_filename[PATH_MAX];
         struct kcore_extract kce;
@@ -1445,25 +1443,6 @@ int symbol__disassemble(struct symbol *sym, struct map *map,
         if (err)
                 return err;
 
-        arch_name = annotate__norm_arch(arch_name);
-        if (!arch_name)
-                return -1;
-
-        arch = arch__find(arch_name);
-        if (arch == NULL)
-                return -ENOTSUP;
-
-        if (parch)
-                *parch = arch;
-
-        if (arch->init) {
-                err = arch->init(arch, cpuid);
-                if (err) {
-                        pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
-                        return err;
-                }
-        }
-
         pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
                  symfs_filename, sym->name, map->unmap_ip(map, sym->start),
                  map->unmap_ip(map, sym->end));
@@ -1581,6 +1560,35 @@ out_close_stdout:
         goto out_remove_tmp;
 }
 
+int symbol__annotate(struct symbol *sym, struct map *map,
+                     const char *arch_name, size_t privsize,
+                     struct arch **parch, char *cpuid)
+{
+        struct arch *arch;
+        int err;
+
+        arch_name = annotate__norm_arch(arch_name);
+        if (!arch_name)
+                return -1;
+
+        arch = arch__find(arch_name);
+        if (arch == NULL)
+                return -ENOTSUP;
+
+        if (parch)
+                *parch = arch;
+
+        if (arch->init) {
+                err = arch->init(arch, cpuid);
+                if (err) {
+                        pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
+                        return err;
+                }
+        }
+
+        return symbol__disassemble(sym, map, privsize, arch);
+}
+
 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
 {
         struct source_line *iter;
@@ -1954,8 +1962,8 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map,
         struct rb_root source_line = RB_ROOT;
         u64 len;
 
-        if (symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
-                                0, NULL, NULL) < 0)
+        if (symbol__annotate(sym, map, perf_evsel__env_arch(evsel),
+                             0, NULL, NULL) < 0)
                 return -1;
 
         len = symbol__size(sym);