runtime safety check for HDF5 library version

- untested

darshan-runtime/lib/darshan-hdf5-stubs.c

@@ -70,6 +70,21 @@ herr_t H5Fclose(hid_t file_id)
     return(-1);
 }
 
+herr_t H5get_libversion(unsigned *majnum, unsigned *minnum, unsigned *relnum) __attribute__((weak));
+
+herr_t H5get_libversion(unsigned *majnum, unsigned *minnum, unsigned *relnum)
+{
+    int rank;
+
+    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+    if(rank == 0)
+    {
+        fprintf(stderr, "WARNING: Darshan H5get_libversion() stub called; this is probably the result of a link-time problem.\n");
+    }
+
+    return(-1);
+}
+
 /*
  * Local variables:
  *  c-indent-level: 4

darshan-runtime/lib/darshan-hdf5.c

@@ -36,6 +36,7 @@ typedef int herr_t;     //hf5-1.10.0p1: H5public.h:126
 DARSHAN_FORWARD_DECL(H5Fcreate, hid_t, (const char *filename, unsigned flags, hid_t create_plist, hid_t access_plist));
 DARSHAN_FORWARD_DECL(H5Fopen, hid_t, (const char *filename, unsigned flags, hid_t access_plist));
 DARSHAN_FORWARD_DECL(H5Fclose, herr_t, (hid_t file_id));
+DARSHAN_FORWARD_DECL(H5get_libversion, herr_t, (unsigned *majnum, unsigned *minnum, unsigned *relnum));
 
 /* structure that can track i/o stats for a given HDF5 file record at runtime */
 struct hdf5_file_record_ref
@@ -120,6 +121,22 @@ hid_t DARSHAN_DECL(H5Fcreate)(const char *filename, unsigned flags,
     hid_t ret;
     char* tmp;
     double tm1;
+    unsigned majnum, minnum, relnum;
+
+    MAP_OR_FAIL(H5get_libversion);
+    __real_H5get_libversion(&majnum, &minnum, &relnum);
+#ifdef __DARSHAN_ENABLE_HDF5110
+    if((ret < 0) || (majnum < 1 || (majnum == 1 && minnum < 10)))
+#else
+    if((ret < 0) || (majnum > 1 || (majnum == 1 && minnum >= 10)))
+#endif
+    {
+        if(my_rank == 0)
+        {
+            fprintf(stderr, "Darshan HDF5 module error: runtime library version does not match Darshan module.\n");
+        }
+        return(-1);
+    }
 
     MAP_OR_FAIL(H5Fcreate);
 
@@ -151,6 +168,22 @@ hid_t DARSHAN_DECL(H5Fopen)(const char *filename, unsigned flags,
     hid_t ret;
     char* tmp;
     double tm1;
+    unsigned majnum, minnum, relnum;
+
+    MAP_OR_FAIL(H5get_libversion);
+    __real_H5get_libversion(&majnum, &minnum, &relnum);
+#ifdef __DARSHAN_ENABLE_HDF5110
+    if((ret < 0) || (majnum < 1 || (majnum == 1 && minnum < 10)))
+#else
+    if((ret < 0) || (majnum > 1 || (majnum == 1 && minnum >= 10)))
+#endif
+    {
+        if(my_rank == 0)
+        {
+            fprintf(stderr, "Darshan HDF5 module error: runtime library version does not match Darshan module.\n");
+        }
+        return(-1);
+    }
 
     MAP_OR_FAIL(H5Fopen);