add parser warnings for new posix/stdio modules

darshan-util/darshan-posix-logutils.c

@@ -310,6 +310,13 @@ static void darshan_log_print_posix_description(int ver)
         printf("# \t- POSIX_RENAMED_FROM\n");
     }
 
+    if(ver >= 4)
+    {
+        printf("\n# WARNING: POSIX_OPENS counter includes both POSIX_FILENOS and POSIX_DUPS counts\n");
+        printf("\n# WARNING: POSIX counters related to file offsets may be incorrect if a file is simultaneously accessed by both POSIX and STDIO (e.g., using fileno())\n");
+        printf("# \t- Affected counters include: MAX_BYTE_{READ|WRITTEN}, CONSEC_{READS|WRITES}, SEQ_{READS|WRITES}, {MEM|FILE}_NOT_ALIGNED, STRIDE*_STRIDE\n");
+    }
+
     return;
 }
 

darshan-util/darshan-stdio-logutils.c

@@ -216,6 +216,12 @@ static void darshan_log_print_stdio_description(int ver)
         printf("# - No support for properly instrumenting fdopen operations (STDIO_FDOPENS)\n");
     }
 
+    if(ver >= 2)
+    {
+        printf("\n# WARNING: STDIO_OPENS counter includes STDIO_FDOPENS count\n");
+        printf("\n# WARNING: STDIO counters related to file offsets may be incorrect if a file is simultaneously accessed by both STDIO and POSIX (e.g., using fdopen())\n");
+        printf("# \t- Affected counters include: MAX_BYTE_{READ|WRITTEN}\n");
+    }
 
     return;
 }