Use 'static' as much as possible

This change just inserts 'static' on runtime, tapset, and generated C
functions and globals, so the compiler can do a better job of
optimizing.

My tests with small scripts show ~10% reduction in compile time and ~20%
reduction in module size.  Larger scripts may show less benefit, but I
expect purely positive results.

1 files changed, 4 insertions, 4 deletions

diff --git a/runtime/runtime.h b/runtime/runtime.h
index 3b3e117d..fc5d454f 100644
--- a/runtime/runtime.h
+++ b/runtime/runtime.h
@@ -44,7 +44,7 @@
 #endif
 
 static void _stp_dbug (const char *func, int line, const char *fmt, ...);
-void _stp_error (const char *fmt, ...);
+static void _stp_error (const char *fmt, ...);
 
 #include "debug.h"
 
@@ -93,7 +93,7 @@ static struct
 #include "addr-map.c"
 
 /* Support functions for int64_t module parameters. */
-int param_set_int64_t(const char *val, struct kernel_param *kp)
+static int param_set_int64_t(const char *val, struct kernel_param *kp)
 {
   char *endp;
   long long ll;
@@ -114,7 +114,7 @@ int param_set_int64_t(const char *val, struct kernel_param *kp)
   return 0;
 }
 
-int param_get_int64_t(char *buffer, struct kernel_param *kp)
+static int param_get_int64_t(char *buffer, struct kernel_param *kp)
 {
   return sprintf(buffer, "%lli", (long long)*((int64_t *)kp->arg));
 }
@@ -129,7 +129,7 @@ int init_module (void)
   return _stp_transport_init();
 }
 
-int probe_start(void);
+static int probe_start(void);
 
 void cleanup_module(void)
 {