RC: forward declarations and link physims better

The simulators have been changed: due to linker errors that would arise
otherwise, a lot of functions are defined in them to avoid such errors.
Some functions are also defined in header files; in this commit, we
define most functoins in nr_dummy_functions.c, which is compiled in, not
by including the C file, but by adding it to the target in
CMakeLists.txt

- nr_dlsim+nr_ulsim need NR_IF_Module_init(), so it cannot be in
  nr_dummy_functions, but the others need it
- Link correcr NR_IF_Module_init() into these simulators, and reduce
  overall link list
- Correctly link remaining simulators

executables/lte-softmodem.c

@@ -77,6 +77,7 @@ unsigned short config_frames[4] = {2,9,11,13};
 
 #include "create_tasks.h"
 
+#include "pdcp.h"
 
 #include "PHY/INIT/phy_init.h"
 

executables/lte-uesoftmodem.c

@@ -39,6 +39,7 @@
 #include "assertions.h"
 
 #include "PHY/types.h"
+#include "pdcp.h"
 
 #include "PHY/defs_UE.h"
 #include "common/ran_context.h"

executables/nr-cuup.c

@@ -28,6 +28,7 @@
 #include "nfapi/oai_integration/vendor_ext.h"
 #include "openair2/F1AP/f1ap_common.h"
 #include "openair2/GNB_APP/gnb_config.h"
+#include "pdcp.h"
 
 RAN_CONTEXT_t RC;
 THREAD_STRUCT thread_struct;
@@ -36,7 +37,6 @@ int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
 int asn1_xer_print;
 int oai_exit = 0;
 instance_t CUuniqInstance = 0;
-RRC_release_list_t rrc_release_info;
 
 void exit_function(const char *file, const char *function, const int line, const char *s)
 {

executables/nr-softmodem.c

@@ -59,6 +59,7 @@ unsigned short config_frames[4] = {2,9,11,13};
 #include "common/utils/LOG/log.h"
 #include "common/utils/LOG/vcd_signal_dumper.h"
 #include "UTIL/OPT/opt.h"
+#include "pdcp.h"
 
 #include "intertask_interface.h"
 

executables/nr-ue.c

@@ -33,6 +33,7 @@
 #include "executables/softmodem-common.h"
 #include "PHY/NR_REFSIG/refsig_defs_ue.h"
 #include "radio/COMMON/common_lib.h"
+#include "pdcp.h"
 
 /*
  *  NR SLOT PROCESSING SEQUENCE

executables/nr-uesoftmodem.c

@@ -59,6 +59,7 @@ unsigned short config_frames[4] = {2,9,11,13};
 
 #include "UTIL/OPT/opt.h"
 #include "enb_config.h"
+#include "pdcp.h"
 
 #include "intertask_interface.h"