perf symbols: Handle different endians properly during symbol load

[platform/adaptation/renesas_rcar/renesas_kernel.git] / tools / perf / util / symbol.h

diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 1f00388..af0752b 100644 (file)
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -9,6 +9,7 @@
 #include <linux/list.h>
 #include <linux/rbtree.h>
 #include <stdio.h>
+#include <byteswap.h>
 
 #ifdef HAVE_CPLUS_DEMANGLE
 extern char *cplus_demangle(const char *, int);
@@ -160,11 +161,18 @@ enum dso_kernel_type {
        DSO_TYPE_GUEST_KERNEL
 };
 
+enum dso_swap_type {
+       DSO_SWAP__UNSET,
+       DSO_SWAP__NO,
+       DSO_SWAP__YES,
+};
+
 struct dso {
        struct list_head node;
        struct rb_root   symbols[MAP__NR_TYPES];
        struct rb_root   symbol_names[MAP__NR_TYPES];
        enum dso_kernel_type    kernel;
+       enum dso_swap_type      needs_swap;
        u8               adjust_symbols:1;
        u8               has_build_id:1;
        u8               hit:1;
@@ -182,6 +190,28 @@ struct dso {
        char             name[0];
 };
 
+#define DSO__SWAP(dso, type, val)                      \
+({                                                     \
+       type ____r = val;                               \
+       BUG_ON(dso->needs_swap == DSO_SWAP__UNSET);     \
+       if (dso->needs_swap == DSO_SWAP__YES) {         \
+               switch (sizeof(____r)) {                \
+               case 2:                                 \
+                       ____r = bswap_16(val);          \
+                       break;                          \
+               case 4:                                 \
+                       ____r = bswap_32(val);          \
+                       break;                          \
+               case 8:                                 \
+                       ____r = bswap_64(val);          \
+                       break;                          \
+               default:                                \
+                       BUG_ON(1);                      \
+               }                                       \
+       }                                               \
+       ____r;                                          \
+})
+
 struct dso *dso__new(const char *name);
 void dso__delete(struct dso *dso);
 
@@ -242,6 +272,7 @@ void dso__set_long_name(struct dso *dso, char *name);
 void dso__set_build_id(struct dso *dso, void *build_id);
 void dso__read_running_kernel_build_id(struct dso *dso,
                                       struct machine *machine);
+struct map *dso__new_map(const char *name);
 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
                                u64 addr);
 struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,