[PATCH 2/2] gprofng: pass gprofng location to gp-display-gui

[vladimir.mezentsev@oracle.com]

From: Vladimir Mezentsev <vladimir.mezentsev@oracle.com>

gprofng GUI can be installed to the other directory.
In this case, $PATH is used to find gp-display-gui from gprofng
and option --gprofngdir is passed to gp-display-gui.

gprofng/ChangeLog
2023-08-09  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

	* src/gprofng.cc (Gprofng::exec_cmd): Add option --gprofngdir.
---
 gprofng/src/gprofng.cc | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/gprofng/src/gprofng.cc b/gprofng/src/gprofng.cc
index 23dcfe38fc7..30e07eb7cad 100644
--- a/gprofng/src/gprofng.cc
+++ b/gprofng/src/gprofng.cc
@@ -226,21 +226,34 @@ Gprofng::exec_cmd (char *tool_name, int argc, char **argv)
       exit (1);
     }
 
-  const char *aname = app_names[first].app_name;;
+  const char *aname = app_names[first].app_name;
 
-  char **arr = (char **) malloc ((argc + 3) * sizeof (char *));
-  int n = 0;
+  char **arr = (char **) malloc ((argc + 5) * sizeof (char *));
   char *pname = get_name ();
-  arr[n++] = dbe_sprintf ("%.*s%s", (int) (get_basename (pname) - pname),
-			    pname, aname);
+  char *exe_name = dbe_sprintf ("%.*s%s",
+			(int) (get_basename (pname) - pname), pname, aname);
+  int n = 1;
   if (app_names[first].keyword)
     arr[n++] = dbe_sprintf ("--whoami=%s %s %s", whoami, tool_name,
 			    app_names[first].keyword);
   else
     arr[n++] = dbe_sprintf ("--whoami=%s %s", whoami, tool_name);
+  if (strcmp (aname, "gp-display-gui") == 0)
+    {
+      if (access (exe_name, X_OK | F_OK) != 0)
+        { // gprofng GUI can be installed to the other directory.
+	  if (verbose)
+	    printf ("gprofng: Cannot find '%s'\n", exe_name);
+	  free (exe_name);
+	  exe_name = get_realpath (aname);  // Use $PATH to find gprofng GUI
+	}
+      arr[n++] = dbe_sprintf ("--gprofngdir=%.*s",
+			      (int) (get_basename (pname) - pname), pname);
+    }
   for (int i = 1; i < argc; i++)
     arr[n++] = argv[i];
   arr[n] = NULL;
+  arr[0] = exe_name;
   if (verbose)
     {
       printf ("gprofng::exec\n");
-- 
2.31.1