fix shared lib dependency error

40902e40 · laurent · c1d65adb · 40902e40 · 40902e40 · 40902e40
Commit 40902e40 authored Jun 05, 2020 by laurent
7 changed files
--- a/cmake_targets/CMakeLists.txt
+++ b/cmake_targets/CMakeLists.txt
@@ -2239,26 +2239,28 @@ add_library(LFDS7
  ${lfds7_queue} ${lfds7_ring} ${lfds7_qbss} ${lfds7_stack} ${lfds7_freelist} ${lfds7_btree} ${lfds7_hash} ${lfds7_ordered_list} ${lfds7_unordered_list} ${lfds7_misc}
 )

+add_library(SIMU_COMMON
+  ${OPENAIR1_DIR}/SIMULATION/TOOLS/random_channel.c
+  ${OPENAIR1_DIR}/SIMULATION/TOOLS/rangen_double.c
+  )
+
 # Simulation library
 ##########################
 set (SIMUSRC 
-${OPENAIR1_DIR}/SIMULATION/TOOLS/random_channel.c
-${OPENAIR1_DIR}/SIMULATION/TOOLS/rangen_double.c
-${OPENAIR1_DIR}/SIMULATION/TOOLS/taus.c
-${OPENAIR1_DIR}/SIMULATION/TOOLS/multipath_channel.c
-${OPENAIR1_DIR}/SIMULATION/TOOLS/multipath_tv_channel.c
-${OPENAIR1_DIR}/SIMULATION/TOOLS/abstraction.c
-${OPENAIR1_DIR}/SIMULATION/TOOLS/channel_sim.c
-${OPENAIR1_DIR}/SIMULATION/RF/rf.c
-${OPENAIR1_DIR}/SIMULATION/RF/dac.c
-${OPENAIR1_DIR}/SIMULATION/RF/adc.c
-${OPENAIR_DIR}/targets/ARCH/rfsimulator/apply_channelmod.c
-#${OPENAIR1_DIR}/SIMULATION/ETH_TRANSPORT/netlink_init.c
-)
+  ${OPENAIR1_DIR}/SIMULATION/TOOLS/taus.c
+  ${OPENAIR1_DIR}/SIMULATION/TOOLS/multipath_channel.c
+  ${OPENAIR1_DIR}/SIMULATION/TOOLS/multipath_tv_channel.c
+  ${OPENAIR1_DIR}/SIMULATION/TOOLS/abstraction.c
+  ${OPENAIR1_DIR}/SIMULATION/TOOLS/channel_sim.c
+  ${OPENAIR1_DIR}/SIMULATION/RF/rf.c
+  ${OPENAIR1_DIR}/SIMULATION/RF/dac.c
+  ${OPENAIR1_DIR}/SIMULATION/RF/adc.c
+  #${OPENAIR1_DIR}/SIMULATION/ETH_TRANSPORT/netlink_init.c
+  )

 # Simulation library
 ##########################
-add_library( SIMU SHARED ${SIMUSRC} )
+add_library(SIMU SHARED ${SIMUSRC} )

 add_library(SIMU_ETH
 ${OPENAIR1_DIR}/SIMULATION/ETH_TRANSPORT/netlink_init.c
@@ -2416,9 +2418,11 @@ target_link_libraries(gnbscope ${XFORMS_LIBRARIES})


 add_library(rfsimulator MODULE 
-	${OPENAIR_TARGETS}/ARCH/rfsimulator/simulator.c
+  ${OPENAIR_TARGETS}/ARCH/rfsimulator/simulator.c
+  ${OPENAIR_TARGETS}/ARCH/rfsimulator/apply_channelmod.c
+  ${OPENAIR_TARGETS}/ARCH/rfsimulator/new_channel_sim.c
 	)
-target_link_libraries(rfsimulator ${ATLAS_LIBRARIES})
+target_link_libraries(rfsimulator SIMU_COMMON ${ATLAS_LIBRARIES})

 add_library(oai_iqplayer MODULE 
 	${OPENAIR_TARGETS}/ARCH/iqplayer/iqplayer_lib.c
@@ -2441,7 +2445,7 @@ endif (${T_TRACER})
 add_custom_command (
  OUTPUT ${OPENAIR_DIR}/common/utils/T/T_IDs.h
  COMMAND make clean
-  COMMAND make
+  COMMAND make -j2
  COMMAND make check_vcd
  WORKING_DIRECTORY ${OPENAIR_DIR}/common/utils/T
  DEPENDS ${OPENAIR_DIR}/common/utils/T/T_messages.txt
@@ -2564,7 +2568,7 @@ add_dependencies(ocp-enb rrc_flag s1ap_flag x2_flag oai_iqplayer)
 target_link_libraries (ocp-enb
  -Wl,--start-group
  RRC_LIB NR_RRC_LIB S1AP_LIB S1AP_ENB F1AP_LIB F1AP M2AP_LIB M2AP_ENB X2AP_LIB X2AP_ENB M3AP_LIB M3AP_ENB GTPV1U SECU_CN SECU_OSA UTIL HASHTABLE SCTP_CLIENT MME_APP UDP SCHED_LIB SCHED_RU_LIB 
-  PHY_COMMON PHY PHY_RU LFDS L2 L2_LTE NFAPI_COMMON_LIB NFAPI_LIB NFAPI_VNF_LIB NFAPI_PNF_LIB NFAPI_USER_LIB LFDS7
+  PHY_COMMON PHY PHY_RU LFDS L2 L2_LTE NFAPI_COMMON_LIB NFAPI_LIB NFAPI_VNF_LIB NFAPI_PNF_LIB NFAPI_USER_LIB LFDS7 SIMU_COMMON
  ${MSC_LIB} ${RAL_LIB} ${NAS_UE_LIB} ${ITTI_LIB} ${FLPT_MSG_LIB} ${ASYNC_IF_LIB} ${FLEXRAN_AGENT_LIB} ${FSPT_MSG_LIB} ${PROTO_AGENT_LIB}
  -Wl,--end-group z dl)
 target_link_libraries (ocp-enb ${LIBXML2_LIBRARIES} pthread m ${CONFIG_LIBRARIES} rt crypt ${CRYPTO_LIBRARIES} ${OPENSSL_LIBRARIES} ${NETTLE_LIBRARIES} sctp ${PROTOBUF_LIB}  ${CMAKE_DL_LIBS} ${LIBYAML_LIBRARIES} ${LIB_LMS_LIBRARIES} ${T_LIB})
@@ -2634,7 +2638,7 @@ target_link_libraries (lte-uesoftmodem
  -Wl,--start-group
  RRC_LIB S1AP_LIB S1AP_ENB X2AP_LIB X2AP_ENB M2AP_LIB M2AP_ENB M3AP_LIB M3AP_ENB F1AP F1AP_LIB
  GTPV1U SECU_CN SECU_OSA UTIL HASHTABLE SCTP_CLIENT MME_APP UDP SCHED_RU_LIB SCHED_UE_LIB PHY_COMMON
-  PHY_UE PHY_RU LFDS L2_UE L2_LTE LFDS7 SIMU NFAPI_COMMON_LIB NFAPI_LIB NFAPI_PNF_LIB NFAPI_USER_LIB
+  PHY_UE PHY_RU LFDS L2_UE L2_LTE LFDS7 SIMU_COMMON SIMU NFAPI_COMMON_LIB NFAPI_LIB NFAPI_PNF_LIB NFAPI_USER_LIB
  ${MSC_LIB} ${RAL_LIB} ${NAS_UE_LIB} ${ITTI_LIB} ${FLPT_MSG_LIB} ${ASYNC_IF_LIB} ${ATLAS_LIBRARIES}
  -Wl,--end-group z dl)

@@ -2729,29 +2733,6 @@ target_link_libraries (nr-uesoftmodem ${T_LIB})

 add_dependencies( nr-uesoftmodem ldpc_orig ldpc_optim ldpc_optim8seg ldpc )

-# USIM process
-#################
-#add_executable(usim
-#  ${OPENAIR3_DIR}/NAS/TOOLS/usim_data.c
-#  ${OPENAIR3_DIR}/NAS/USER/API/USIM/usim_api.c
-#  ${OPENAIR3_DIR}/NAS/USER/API/USIM/aka_functions.c
-#  ${OPENAIR3_DIR}/NAS/COMMON/UTIL/memory.c
-#  ${OPENAIR3_DIR}/NAS/COMMON/UTIL/nas_log.c
-#  ${OPENAIR3_DIR}/NAS/COMMON/UTIL/OctetString.c
-#  ${OPENAIR3_DIR}/NAS/COMMON/UTIL/TLVEncoder.c
-#  )
-#target_link_libraries (usim ${NAS_LIB} UTIL ${ITTI_LIB} LFDS pthread rt nettle crypto m)
-
-# ???
-#####################
-#add_executable(nvram
-#  ${OPENAIR3_DIR}/NAS/TOOLS/ue_data.c
-#  ${OPENAIR3_DIR}/NAS/COMMON/UTIL/memory.c
-#  ${OPENAIR3_DIR}/NAS/COMMON/UTIL/nas_log.c
-#  )
-#target_link_libraries (nvram LIB_NAS_UE UTIL ${ITTI_LIB} LFDS pthread rt nettle crypto m)
-
-
 ###################################"
 # Addexecutables for tests
 ####################################
@@ -2768,7 +2749,7 @@ add_executable(dlsim_tm4
  ${T_SOURCE}
  )
 target_link_libraries (dlsim_tm4
-  -Wl,--start-group SIMU UTIL SCHED_LIB SCHED_RU_LIB PHY LFDS ${ITTI_LIB} -Wl,--end-group
+  -Wl,--start-group SIMU_COMMON SIMU UTIL SCHED_LIB SCHED_RU_LIB PHY LFDS ${ITTI_LIB} -Wl,--end-group
  pthread m rt ${CONFIG_LIB} ${ATLAS_LIBRARIES} ${T_LIB}
  )

@@ -2781,7 +2762,7 @@ add_executable(polartest
  ${SHLIB_LOADER_SOURCES}
  )
 target_link_libraries(polartest
-  -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR PHY_NR_COMMON PHY_NR_UE CONFIG_LIB -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON  SIMU PHY_COMMON PHY_NR PHY_NR_COMMON PHY_NR_UE CONFIG_LIB -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} dl
  )

@@ -2796,7 +2777,7 @@ add_executable(smallblocktest


 target_link_libraries(smallblocktest
-  -Wl,--start-group UTIL SIMU PHY_NR PHY_COMMON PHY_NR_COMMON CONFIG_LIB -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON SIMU PHY_NR PHY_COMMON PHY_NR_COMMON CONFIG_LIB -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} dl
  )

@@ -2809,7 +2790,7 @@ add_executable(ldpctest
 add_dependencies( ldpctest ldpc_orig ldpc_optim ldpc_optim8seg ldpc ) 

 target_link_libraries(ldpctest
-  -Wl,--start-group UTIL SIMU PHY_NR PHY_COMMON PHY_NR_COMMON CONFIG_LIB -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON  SIMU PHY_NR PHY_COMMON PHY_NR_COMMON CONFIG_LIB -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} dl
  )

@@ -2821,7 +2802,7 @@ add_executable(nr_dlschsim
  ${SHLIB_LOADER_SOURCES}
  )
 target_link_libraries(nr_dlschsim 
-  -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB MAC_NR_COMMON -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB MAC_NR_COMMON -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} ${T_LIB} ${ITTI_LIB} dl
  )

@@ -2833,7 +2814,7 @@ add_executable(nr_pbchsim
  ${SHLIB_LOADER_SOURCES}
  )
 target_link_libraries(nr_pbchsim
-  -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB MAC_NR_COMMON -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB MAC_NR_COMMON -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} ${T_LIB} ${ITTI_LIB} dl
  )

@@ -2848,7 +2829,7 @@ add_executable(nr_pucchsim
  ${SHLIB_LOADER_SOURCES}
  )
 target_link_libraries(nr_pucchsim
-  -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB MAC_NR_COMMON -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB MAC_NR_COMMON -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} ${T_LIB} ${ITTI_LIB} dl
  )

@@ -2862,7 +2843,7 @@ add_executable(nr_dlsim
  ${SHLIB_LOADER_SOURCES}
  )   
 target_link_libraries(nr_dlsim
-  -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB SCHED_NR_UE_LIB MAC_NR MAC_UE_NR MAC_NR_COMMON RRC_LIB NR_RRC_LIB CONFIG_LIB L2_NR -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB SCHED_NR_UE_LIB MAC_NR MAC_UE_NR MAC_NR_COMMON RRC_LIB NR_RRC_LIB CONFIG_LIB L2_NR -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} ${T_LIB} ${ITTI_LIB} dl
  )
 target_compile_definitions(nr_dlsim PUBLIC -DPHYSICAL_SIMULATOR)
@@ -2876,7 +2857,7 @@ add_executable(nr_prachsim
  ${T_SOURCE}
  ${SHLIB_LOADER_SOURCES})
 target_link_libraries(nr_prachsim  
-   -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_RU PHY_NR_UE MAC_NR_COMMON SCHED_NR_LIB SCHED_NR_UE_LIB RRC_LIB NR_RRC_LIB L2_NR CONFIG_LIB -Wl,--end-group m pthread ${ATLAS_LIBRARIES} ${T_LIB} ${ITTI_LIB} dl)
+   -Wl,--start-group UTIL SIMU_COMMON SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_RU PHY_NR_UE MAC_NR_COMMON SCHED_NR_LIB SCHED_NR_UE_LIB RRC_LIB NR_RRC_LIB L2_NR CONFIG_LIB -Wl,--end-group m pthread ${ATLAS_LIBRARIES} ${T_LIB} ${ITTI_LIB} dl)

 add_executable(nr_ulschsim
  ${OPENAIR1_DIR}/SIMULATION/NR_PHY/ulschsim.c
@@ -2886,7 +2867,7 @@ add_executable(nr_ulschsim
  ${SHLIB_LOADER_SOURCES}
  )
 target_link_libraries(nr_ulschsim
-  -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB MAC_NR_COMMON -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON SIMU PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB MAC_NR_COMMON -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} ${T_LIB} ${ITTI_LIB} dl
  )

@@ -2900,7 +2881,7 @@ add_executable(nr_ulsim
  ${SHLIB_LOADER_SOURCES}
  )
 target_link_libraries(nr_ulsim
-  -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR PHY_NR_COMMON PHY_NR_UE SCHED_NR_LIB SCHED_NR_UE_LIB MAC_NR MAC_UE_NR MAC_NR_COMMON RRC_LIB NR_RRC_LIB CONFIG_LIB L2_NR -Wl,--end-group
+  -Wl,--start-group UTIL SIMU_COMMON SIMU PHY_COMMON PHY_NR PHY_NR_COMMON PHY_NR_UE SCHED_NR_LIB SCHED_NR_UE_LIB MAC_NR MAC_UE_NR MAC_NR_COMMON RRC_LIB NR_RRC_LIB CONFIG_LIB L2_NR -Wl,--end-group
  m pthread ${ATLAS_LIBRARIES} ${T_LIB} ${ITTI_LIB} dl
  )
 target_compile_definitions(nr_ulsim PUBLIC -DPHYSICAL_SIMULATOR)
@@ -2919,7 +2900,7 @@ foreach(myExe dlsim dlsim_tm7 ulsim pbchsim scansim mbmssim pdcchsim pucchsim pr
    ${NFAPI_USER_DIR}/nfapi.c
    )
  target_link_libraries (${myExe}
-    -Wl,--start-group SIMU UTIL SCHED_LIB SCHED_RU_LIB SCHED_UE_LIB PHY_COMMON PHY_NR_COMMON PHY PHY_UE PHY_RU LFDS ${ITTI_LIB} LFDS7 -Wl,--end-group
+    -Wl,--start-group SIMU_COMMON SIMU UTIL SCHED_LIB SCHED_RU_LIB SCHED_UE_LIB PHY_COMMON PHY_NR_COMMON PHY PHY_UE PHY_RU LFDS ${ITTI_LIB} LFDS7 -Wl,--end-group
    pthread m rt ${CONFIG_LIB} ${ATLAS_LIBRARIES}  ${XFORMS_LIBRARIES} ${T_LIB} dl
    )
   
@@ -2999,7 +2980,7 @@ if (${T_TRACER})
        NFAPI_COMMON_LIB NFAPI_LIB NFAPI_PNF_LIB NFAPI_VNF_LIB NFAPI_USER_LIB
        PHY_COMMON PHY PHY_UE PHY_NR PHY_NR_COMMON PHY_NR_UE PHY_RU PHY_MEX
        L2 L2_LTE L2_NR L2_UE NR_L2_UE MAC_NR_COMMON MAC_NR MAC_UE_NR
-        CN_UTILS GTPV1U SCTP_CLIENT MME_APP UDP LIB_NAS_UE NB_IoT LFDS LFDS7 SIMU SIMU_ETH OPENAIR0_LIB
+        CN_UTILS GTPV1U SCTP_CLIENT MME_APP UDP LIB_NAS_UE NB_IoT LFDS LFDS7 SIMU_COMMON SIMU SIMU_ETH OPENAIR0_LIB
        ldpc_orig ldpc_optim ldpc_optim8seg ldpc PROTO_AGENT dfts)
    if (TARGET ${i})
      add_dependencies(${i} generate_T)
@@ -3043,7 +3024,7 @@ function(make_driver name dir)
  endforeach()
  CONFIGURE_FILE(${OPENAIR_CMAKE}/tools/Kbuild.cmake ${OPENAIR_BIN_DIR}/${name}/Kbuild)
  add_custom_command(OUTPUT ${name}.ko
-    COMMAND make -C ${module_build_path} M=${OPENAIR_BIN_DIR}/${name}
+    COMMAND make -j2 -C ${module_build_path} M=${OPENAIR_BIN_DIR}/${name}
    WORKING_DIRECTORY ${OPENAIR_BIN_DIR}/${name}
    COMMENT "building ${module}.ko"
    VERBATIM

--- a/cmake_targets/tools/build_helper
+++ b/cmake_targets/tools/build_helper
@@ -150,7 +150,9 @@ clean_all_files() {
 set_openair_env
 dir=$OPENAIR_DIR/cmake_targets
 rm -rf $dir/log $OPENAIR_DIR/targets/bin/*
- rm -rf $dir/ran_build $dir/lte-simulators/build
+ rm -rf $dir/ran_build $dir/ran_build_noLOG
+ rm -rf $dir/lte-simulators/build 
+ rm -rf $dir/phy_simulators/build $dir/nas_sim_tools/build 
 rm -rf $dir/oaisim_build_oai/build $dir/oaisim_build_oai/CMakeLists.txt
 rm -rf $dir/autotests/bin $dir/autotests/log $dir/autotests/*/build
 }
@@ -177,7 +179,6 @@ compilations() {
  cd $OPENAIR_DIR/cmake_targets/$1/build
  set +e
  {
-    rm -f $3
    if [ "$BUILD_COVERITY_SCAN" == "1" ]; then
        COV_SCAN_PREFIX="cov-build --dir cov-int"
    else

--- a/openair1/SIMULATION/TOOLS/sim.h
+++ b/openair1/SIMULATION/TOOLS/sim.h
@@ -432,15 +432,6 @@ void multipath_tv_channel(channel_desc_t *desc,
 /**@} */
 /**@} */

-void rxAddInput( struct complex16 *input_sig,
-                 struct complex16 *after_channel_sig,
-                 int rxAnt,
-                 channel_desc_t *channelDesc,
-                 int nbSamples,
-                 uint64_t TS,
-                 uint32_t CirSize
-               );
-
 int modelid_fromname(char *modelname);
 double channelmod_get_snr_dB(void);
 double channelmod_get_sinr_dB(void);

--- a/targets/ARCH/rfsimulator/apply_channelmod.c
+++ b/targets/ARCH/rfsimulator/apply_channelmod.c
@@ -34,6 +34,9 @@
 #include <common/utils/LOG/log.h>
 #include <common/config/config_userapi.h>
 #include <openair1/SIMULATION/TOOLS/sim.h>
+#include <common/utils/telnetsrv/telnetsrv.h>
+#include <common/utils/load_module_shlib.h>
+#include <targets/ARCH/rfsimulator/rfsimulator.h>

 /*
  Legacy study:
@@ -99,8 +102,8 @@ void rxAddInput( struct complex16 *input_sig, struct complex16 *after_channel_si
      } //l
    }

-    out_ptr->r += round(rx_tmp.x*pathLossLinear + noise_per_sample*gaussdouble(0.0,1.0));
-    out_ptr->i += round(rx_tmp.y*pathLossLinear + noise_per_sample*gaussdouble(0.0,1.0));
+    out_ptr->r += round(rx_tmp.x*pathLossLinear + noise_per_sample*gaussZiggurat(0.0,1.0));
+    out_ptr->i += round(rx_tmp.y*pathLossLinear + noise_per_sample*gaussZiggurat(0.0,1.0));
    out_ptr++;
  }

@@ -112,3 +115,4 @@ void rxAddInput( struct complex16 *input_sig, struct complex16 *after_channel_si
          channelDesc->path_loss_dB,
          10*log10(noise_per_sample));
 }
+
--- a/targets/ARCH/rfsimulator/new_channel_sim.c
+++ b/targets/ARCH/rfsimulator/new_channel_sim.c
+/*
+* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The OpenAirInterface Software Alliance licenses this file to You under
+* the OAI Public License, Version 1.1  (the "License"); you may not use this file
+* except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.openairinterface.org/?page_id=698
+*
+* Author and copyright: Laurent Thomas, open-cells.com
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*-------------------------------------------------------------------------------
+* For more information about the OpenAirInterface (OAI) Software Alliance:
+*      contact@openairinterface.org
+*/
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <errno.h>
+
+
+#include <common/utils/assertions.h>
+#include <common/utils/LOG/log.h>
+#include <common/config/config_userapi.h>
+#include <openair1/SIMULATION/TOOLS/sim.h>
+#include <targets/ARCH/rfsimulator/rfsimulator.h>
+
+// Ziggurat 
+static double wn[128],fn[128];
+static uint32_t iz,jz,jsr=123456789,kn[128];
+static int32_t hz;
+#define SHR3 (jz=jsr, jsr^=(jsr<<13),jsr^=(jsr>>17),jsr^=(jsr<<5),jz+jsr)
+#define UNI (0.5+(signed) SHR3 * 0.2328306e-9)
+
+double nfix(void) {
+  const double r = 3.442620;
+  static double x, y;
+
+  for (;;) {
+    x=hz *  wn[iz];
+
+    if (iz==0) {
+      do {
+        x = - 0.2904764 * log (UNI);
+        y = - log (UNI);
+      } while (y+y < x*x);
+
+      return (hz>0)? r+x : -r-x;
+    }
+
+    if (fn[iz]+UNI*(fn[iz-1]-fn[iz])<exp(-0.5*x*x)) {
+      return x;
+    }
+
+    hz = SHR3;
+    iz = hz&127;
+
+    if (abs(hz) < kn[iz]) {
+      return ((hz)*wn[iz]);
+    }
+  }
+}
+
+/*!\Procedure to create tables for normal distribution kn,wn and fn. */
+
+void tableNor(unsigned long seed) {
+  jsr=seed;
+  double dn = 3.442619855899;
+  int i;
+  const double m1 = 2147483648.0;
+  double q;
+  double tn = 3.442619855899;
+  const double vn = 9.91256303526217E-03;
+  q = vn/exp(-0.5*dn*dn);
+  kn[0] = ((dn/q)*m1);
+  kn[1] = 0;
+  wn[0] =  ( q / m1 );
+  wn[127] = ( dn / m1 );
+  fn[0] = 1.0;
+  fn[127] = ( exp ( - 0.5 * dn * dn ) );
+
+  for ( i = 126; 1 <= i; i-- ) {
+    dn = sqrt (-2.0 * log ( vn/dn + exp(-0.5*dn*dn)));
+    kn[i+1] = ((dn / tn)*m1);
+    tn = dn;
+    fn[i] = (exp (-0.5*dn*dn));
+    wn[i] = (dn / m1);
+  }
+
+  return;
+}
+
+double gaussZiggurat(double mean, double variance) {
+  hz=SHR3;
+  iz=hz&127;
+  return abs(hz)<kn[iz]? hz*wn[iz] : nfix();
+}
--- a/targets/ARCH/rfsimulator/rfsimulator.h
+++ b/targets/ARCH/rfsimulator/rfsimulator.h
+/*
+* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The OpenAirInterface Software Alliance licenses this file to You under
+* the OAI Public License, Version 1.1  (the "License"); you may not use this file
+* except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.openairinterface.org/?page_id=698
+*
+* Author and copyright: Laurent Thomas, open-cells.com
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*-------------------------------------------------------------------------------
+* For more information about the OpenAirInterface (OAI) Software Alliance:
+*      contact@openairinterface.org
+*/
+
+#ifndef __RFSIMULATOR_H
+#define  __RFSIMULATOR_H
+double gaussZiggurat(double mean, double variance);
+void tableNor(unsigned long seed);
+void rxAddInput( struct complex16 *input_sig,
+                 struct complex16 *after_channel_sig,
+                 int rxAnt,
+                 channel_desc_t *channelDesc,
+                 int nbSamples,
+                 uint64_t TS,
+                 uint32_t CirSize
+               );
+
+#endif
--- a/targets/ARCH/rfsimulator/simulator.c
+++ b/targets/ARCH/rfsimulator/simulator.c
@@ -50,6 +50,7 @@
 #include "openair1/PHY/defs_UE.h"
 #define CHANNELMOD_DYNAMICLOAD
 #include <openair1/SIMULATION/TOOLS/sim.h>
+#include <targets/ARCH/rfsimulator/rfsimulator.h>

 #define PORT 4043 //default TCP port for this simulator
 #define CirSize 307200 // 100ms is enough
@@ -146,6 +147,12 @@ void allocCirBuf(rfsimulator_state_t *bridge, int sock) {
    // the value channel_model->path_loss_dB seems only a storage place (new_channel_desc_scm() only copy the passed value)
    // Legacy changes directlty the variable channel_model->path_loss_dB place to place
    // while calling new_channel_desc_scm() with path losses = 0
+    static bool init_done=false;
+    if (!init_done) {
+      randominit(0);
+      tableNor(0);
+      init_done=true;
+    }
    ptr->channel_model=new_channel_desc_scm(bridge->tx_num_channels,bridge->rx_num_channels,
                                            bridge->channelmod,
                                            bridge->sample_rate,
@@ -561,6 +568,7 @@ int rfsimulator_read(openair0_device *device, openair0_timestamp *ptimestamp, vo
      pthread_mutex_unlock(&Sockmutex);
      usleep(10000);
      pthread_mutex_lock(&Sockmutex);
+
      if ( t->lastWroteTS < t->nextTimestamp ) {
        // Assuming Tx is not done fully in another thread
        // We can never write is the past from the received time
@@ -574,6 +582,7 @@ int rfsimulator_read(openair0_device *device, openair0_timestamp *ptimestamp, vo

        for ( int i=0; i < t->tx_num_channels; i++)
          samplesVoid[i]=(void *)&v;
+
 	LOG_I(HW, "No samples Tx occured, so we send 1 sample to notify it: Tx:%lu, Rx:%lu\n",
 	      t->lastWroteTS, t->nextTimestamp);
        rfsimulator_write_internal(t, t->nextTimestamp,
@@ -716,7 +725,7 @@ int device_init(openair0_device *device, openair0_config_t *openair0_cfg) {
  rfsimulator->rx_num_channels=openair0_cfg->rx_num_channels;
  rfsimulator->sample_rate=openair0_cfg->sample_rate;
  rfsimulator->tx_bw=openair0_cfg->tx_bw;
-  randominit(0);
+  //randominit(0);
  set_taus_seed(0);
  return 0;
 }