Fix printing handle in poti variant

src/debug/traces/starpu_fxt.c

@@ -2307,7 +2307,9 @@ static void handle_start_driver_copy(struct fxt_ev_64 *ev, struct starpu_fxt_opt
 			snprintf(paje_key, sizeof(paje_key), "com_%u", comid);
 			program_container_alias(program_container, STARPU_POTI_STR_LEN, prefix);
 			memmanager_container_alias(src_memnode_container, STARPU_POTI_STR_LEN, prefix, src);
-			poti_user_StartLink(_starpu_poti_CommLinkStart, time, program_container, link_type, src_memnode_container, paje_value, paje_key, 1, handle);
+			char str_handle[STARPU_POTI_STR_LEN];
+			snprintf(str_handle, sizeof(str_handle), "%lx", handle);
+			poti_user_StartLink(_starpu_poti_CommLinkStart, time, program_container, link_type, src_memnode_container, paje_value, paje_key, 1, str_handle);
 #else
 			fprintf(out_paje_file, "24	%.9f	%s	%sp	%u	%smm%u	com_%u	%lx\n", time, link_type, prefix, size, prefix, src, comid, handle);
 #endif
@@ -2353,7 +2355,7 @@ static void handle_work_stealing(struct fxt_ev_64 *ev, struct starpu_fxt_options
 		poti_EndLink(time+0.000000001, program_container, "WSL", dst_worker_container, paje_value, paje_key);
 #else
 
-		fprintf(out_paje_file, "18	%.9f	WSL	%sp	%u	%sw%u	steal_%u	\n", time, prefix, size, prefix, src, steal_number);
+		fprintf(out_paje_file, "18	%.9f	WSL	%sp	%u	%sw%u	steal_%u\n", time, prefix, size, prefix, src, steal_number);
 		fprintf(out_paje_file, "19	%.9f	WSL	%sp	%u	%sw%u	steal_%u\n", time+0.000000001, prefix, size, prefix, dst, steal_number);
 #endif
 	}

src/debug/traces/starpu_fxt_mpi.c

@@ -331,7 +331,9 @@ static void display_all_transfers_from_trace(FILE *out_paje_file, FILE *out_comm
 
 			char str_mpi_tag[STARPU_POTI_STR_LEN];
 			snprintf(str_mpi_tag, sizeof(str_mpi_tag), "%ld", mpi_tag);
-			poti_user_StartLink(_starpu_poti_MpiLinkStart, start_date, "MPIroot", "MPIL", mpi_container, paje_value, paje_key, 2, str_mpi_tag, send_handle);
+			char str_handle[STARPU_POTI_STR_LEN];
+			snprintf(str_handle, sizeof(str_handle), "%lx", send_handle);
+			poti_user_StartLink(_starpu_poti_MpiLinkStart, start_date, "MPIroot", "MPIL", mpi_container, paje_value, paje_key, 2, str_mpi_tag, str_handle);
 
 			poti_SetVariable(start_date, mpi_container, "bwo_mpi", current_out_bandwidth[src]);
 			snprintf(mpi_container, sizeof(mpi_container), "%d_mpict", dst);