Added -execfreq to enable execution frequency counting and dump
all the TB's addresses and their execution frequency at the end
of the execution.
Signed-off-by: vandersonmr <vanderson...@gmail.com>
---
linux-user/exit.c | 5 +++++
linux-user/main.c | 7 +++++++
2 files changed, 12 insertions(+)
diff --git a/linux-user/exit.c b/linux-user/exit.c
index bdda720553..0c6a2f2d5b 100644
--- a/linux-user/exit.c
+++ b/linux-user/exit.c
@@ -26,8 +26,13 @@
extern void __gcov_dump(void);
#endif
+extern bool enable_freq_count;
+
void preexit_cleanup(CPUArchState *env, int code)
{
+ if (enable_freq_count) {
+ tb_dump_all_exec_freq();
+ }
#ifdef TARGET_GPROF
_mcleanup();
#endif
diff --git a/linux-user/main.c b/linux-user/main.c
index 1bf7155670..ece2d8bd8b 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -388,6 +388,11 @@ static void handle_arg_trace(const char *arg)
trace_file = trace_opt_parse(arg);
}
+static void handle_arg_execfreq(const char *arg)
+{
+ enable_freq_count = true;
+}
+
struct qemu_argument {
const char *argv;
const char *env;
@@ -439,6 +444,8 @@ static const struct qemu_argument arg_table[] = {
"", "Seed for pseudo-random number generator"},
{"trace", "QEMU_TRACE", true, handle_arg_trace,
"", "[[enable=]<pattern>][,events=<file>][,file=<file>]"},
+ {"execfreq", "QEMU_EXEC_FREQ", false, handle_arg_execfreq,
+ "", "enable and dump TB's execution frequency counting"},
{"version", "QEMU_VERSION", false, handle_arg_version,
"", "display version information and exit"},
{NULL, NULL, false, NULL, NULL, NULL}
--
2.22.0
