PR10204: Place userspace markers in systemtap itself

* cache.cxx (add_to_cache,clean_cache): add static markers
* main.cxx (main): likewise
* runtime/staprun/common.c (send_request): likewise
* runtime/staprun/mainloop.c (stp_main_loop): likewise
* runtime/staprun/staprun.c (remove_module): likewise
* runtime/staprun/staprun.h: include sdt.h
* runtime/staprun/staprun_funcs.c (insert_module): likewise
* util.cxx (stap_system): likewise
* tapset/stap_staticmarkers.stp: new file

1 files changed, 4 insertions, 0 deletions

diff --git a/util.cxx b/util.cxx
index 5c05a1dd..23deb37b 100644
--- a/util.cxx
+++ b/util.cxx
@@ -16,6 +16,7 @@
 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 #include "util.h"
+#include "sys/sdt.h"
 #include <stdexcept>
 #include <cerrno>
 
@@ -303,12 +304,14 @@ static pid_t spawned_pid = 0;
 int
 stap_system(const char *command)
 {
+  STAP_PROBE1(stap, stap_system__start, command);
   const char * argv[] = { "sh", "-c", command, NULL };
   int ret, status;
 
   spawned_pid = 0;
   ret = posix_spawn(&spawned_pid, "/bin/sh", NULL, NULL,
                     const_cast<char **>(argv), environ);
+  STAP_PROBE2(stap, stap_system__spawn, ret, spawned_pid);
   if (ret == 0)
     {
       if (waitpid(spawned_pid, &status, 0) == spawned_pid)
@@ -316,6 +319,7 @@ stap_system(const char *command)
       else
         ret = errno;
     }
+  STAP_PROBE1(stap, stap_system__complete, ret);
   spawned_pid = 0;
   return ret;
 }