support for builtin profiler

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1751 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 20 insertions, 0 deletions

diff --git a/cpu-all.h b/cpu-all.h
index b374fe8..e0b60d9 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -867,4 +867,24 @@ void cpu_tlb_update_dirty(CPUState *env);
 void dump_exec_info(FILE *f,
                     int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
 
+/* profiling */
+#ifdef CONFIG_PROFILER
+static inline int64_t profile_getclock(void)
+{
+    int64_t val;
+    asm volatile ("rdtsc" : "=A" (val));
+    return val;
+}
+
+extern int64_t kqemu_time, kqemu_time_start;
+extern int64_t qemu_time, qemu_time_start;
+extern int64_t tlb_flush_time;
+extern int64_t kqemu_exec_count;
+extern int64_t dev_time;
+extern int64_t kqemu_ret_int_count;
+extern int64_t kqemu_ret_excp_count;
+extern int64_t kqemu_ret_intr_count;
+
+#endif
+
 #endif /* CPU_ALL_H */