add softmodem-common.c and common error handler

This commit is contained in:
frtabu
2020-02-04 17:39:36 +01:00
parent 101a55e332
commit 64e4826c81
27 changed files with 315 additions and 395 deletions
-132
View File
@@ -1,132 +0,0 @@
/*
* 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
*
* 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
*/
/*! \file lte-softmodem-common.c
* \brief Top-level threads for eNodeB
* \author Nokia BellLabs France, francois Taburet
* \date 2012
* \version 0.1
* \company Eurecom
* \email: francois.taburet@nokia-bell-labs.com
* \note
* \warning
*/
#include "lte-softmodem.h"
#include "UTIL/OPT/opt.h"
#include "common/config/config_userapi.h"
#include "common/utils/load_module_shlib.h"
#include "executables/thread-common.h"
#include <dlfcn.h>
static softmodem_params_t softmodem_params;
char *parallel_config=NULL;
char *worker_config=NULL;
uint64_t get_softmodem_optmask(void) {
return softmodem_params.optmask;
}
uint64_t set_softmodem_optmask(uint64_t bitmask) {
softmodem_params.optmask = softmodem_params.optmask | bitmask;
return softmodem_params.optmask;
}
softmodem_params_t *get_softmodem_params(void) {
return &softmodem_params;
}
void get_common_options(void) {
uint32_t online_log_messages;
uint32_t glog_level ;
uint32_t start_telnetsrv = 0;
uint32_t noS1 = 0, nokrnmod = 0, nonbiot = 0;
uint32_t rfsim = 0, basicsim = 0, do_forms = 0;
char *logmem_filename = NULL;
paramdef_t cmdline_params[] =CMDLINE_PARAMS_DESC ;
paramdef_t cmdline_logparams[] =CMDLINE_LOGPARAMS_DESC ;
checkedparam_t cmdline_log_CheckParams[] = CMDLINE_LOGPARAMS_CHECK_DESC;
config_get( cmdline_params,sizeof(cmdline_params)/sizeof(paramdef_t),NULL);
config_set_checkfunctions(cmdline_logparams, cmdline_log_CheckParams,
sizeof(cmdline_logparams)/sizeof(paramdef_t));
config_get( cmdline_logparams,sizeof(cmdline_logparams)/sizeof(paramdef_t),NULL);
if(config_isparamset(cmdline_logparams,CMDLINE_ONLINELOG_IDX)) {
set_glog_onlinelog(online_log_messages);
}
if(config_isparamset(cmdline_logparams,CMDLINE_GLOGLEVEL_IDX)) {
set_glog(glog_level);
}
if (start_telnetsrv) {
load_module_shlib("telnetsrv",NULL,0,NULL);
}
if (logmem_filename != NULL && strlen(logmem_filename) > 0) {
log_mem_filename = &logmem_filename[0];
log_mem_flag = 1;
printf("Enabling OPT for log save at memory %s\n",log_mem_filename);
logInit_log_mem();
}
if (noS1) {
set_softmodem_optmask(SOFTMODEM_NOS1_BIT);
}
if (nokrnmod) {
printf("nokrnmod bit enabled \n");
set_softmodem_optmask(SOFTMODEM_NOKRNMOD_BIT);
}
if (nonbiot) {
set_softmodem_optmask(SOFTMODEM_NONBIOT_BIT);
}
if (rfsim) {
set_softmodem_optmask(SOFTMODEM_RFSIM_BIT);
}
if (basicsim) {
set_softmodem_optmask(SOFTMODEM_BASICSIM_BIT);
}
if (do_forms) {
set_softmodem_optmask(SOFTMODEM_DOFORMS_BIT);
}
#if BASIC_SIMULATOR
set_softmodem_optmask(SOFTMODEM_BASICSIM_BIT);
#endif
if(parallel_config != NULL) set_parallel_conf(parallel_config);
if(worker_config != NULL) set_worker_conf(worker_config);
}
unsigned int is_nos1exec(char *exepath) {
if ( strcmp( basename(exepath), "lte-softmodem-nos1") == 0)
return 1;
if ( strcmp( basename(exepath), "lte-uesoftmodem-nos1") == 0)
return 1;
return 0;
}
+1 -26
View File
@@ -150,7 +150,6 @@ char channels[128] = "0";
int rx_input_level_dBm;
int otg_enabled;
uint8_t exit_missed_slots=1;
uint64_t num_missed_slots=0; // counter for the number of missed slots
@@ -235,24 +234,6 @@ unsigned int build_rfdc(int dcoff_i_rxfe, int dcoff_q_rxfe) {
}
void signal_handler(int sig) {
void *array[10];
size_t size;
if (sig==SIGSEGV) {
// get void*'s for all entries on the stack
size = backtrace(array, 10);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
backtrace_symbols_fd(array, size, 2);
exit(-1);
} else {
printf("Linux signal %s...\n",strsignal(sig));
exit_function(__FILE__, __FUNCTION__, __LINE__,"softmodem starting exit procedure\n");
}
}
void exit_function(const char *file, const char *function, const int line, const char *s) {
int ru_id;
@@ -537,9 +518,6 @@ int main ( int argc, char **argv )
printf("Reading in command-line options\n");
get_options ();
if (is_nos1exec(argv[0]) )
set_softmodem_optmask(SOFTMODEM_NOS1_BIT);
EPC_MODE_ENABLED = !IS_SOFTMODEM_NOS1;
if (CONFIG_ISFLAGSET(CONFIG_ABORT) ) {
@@ -570,10 +548,7 @@ int main ( int argc, char **argv )
MSC_INIT(MSC_E_UTRAN, THREAD_MAX+TASK_MAX);
init_opt();
// to make a graceful exit when ctrl-c is pressed
signal(SIGSEGV, signal_handler);
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
signal(SIGABRT, signal_handler);
set_softmodem_sighandler();
check_clock();
#ifndef PACKAGE_VERSION
# define PACKAGE_VERSION "UNKNOWN-EXPERIMENTAL"
+25 -149
View File
@@ -35,63 +35,7 @@
#include "proto_agent.h"
#include "executables/softmodem-common.h"
/* help strings definition for command line options, used in CMDLINE_XXX_DESC macros and printed when -h option is used */
#define CONFIG_HLP_RFCFGF "Configuration file for front-end (e.g. LMS7002M)\n"
#define CONFIG_HLP_ULMAXE "set the eNodeB max ULSCH erros\n"
#define CONFIG_HLP_CALUER "set UE RX calibration\n"
#define CONFIG_HLP_CALUERM ""
#define CONFIG_HLP_CALUERB ""
#define CONFIG_HLP_DBGUEPR "UE run normal prach power ramping, but don't continue random-access\n"
#define CONFIG_HLP_CALPRACH "UE run normal prach with maximum power, but don't continue random-access\n"
#define CONFIG_HLP_NOL2CN "bypass L2 and upper layers\n"
#define CONFIG_HLP_SIML1 "activate RF simulator instead of HW\n"
#define CONFIG_HLP_NUMUE "number of UE instances\n"
#define CONFIG_HLP_UERXG "set UE RX gain\n"
#define CONFIG_HLP_UERXGOFF "external UE amplifier offset\n"
#define CONFIG_HLP_UETXG "set UE TX gain\n"
#define CONFIG_HLP_UENANTR "set UE number of rx antennas\n"
#define CONFIG_HLP_UENANTT "set UE number of tx antennas\n"
#define CONFIG_HLP_UESCAN "set UE to scan around carrier\n"
#define CONFIG_HLP_DUMPFRAME "dump UE received frame to rxsig_frame0.dat and exit\n"
#define CONFIG_HLP_DLSHIFT "dynamic shift for LLR compuation for TM3/4 (default 0)\n"
#define CONFIG_HLP_UELOOP "get softmodem (UE) to loop through memory instead of acquiring from HW\n"
#define CONFIG_HLP_PHYTST "test UE phy layer, mac disabled\n"
#define CONFIG_HLP_DMAMAP "sets flag for improved EXMIMO UE performance\n"
#define CONFIG_HLP_EXTS "tells hardware to use an external timing reference\n"
#define CONFIG_HLP_DMRSSYNC "tells RU to insert DMRS in subframe 1 slot 0"
#define CONFIG_HLP_CLK "tells hardware to use a clock reference (0:internal, 1:external, 2:gpsdo)\n"
#define CONFIG_HLP_USIM "use XOR autentication algo in case of test usim mode\n"
#define CONFIG_HLP_NOSNGLT "Disables single-thread mode in lte-softmodem\n"
#define CONFIG_HLP_TADV "Set timing_advance\n"
#define CONFIG_HLP_DLF "Set the downlink frequency for all component carriers\n"
#define CONFIG_HLP_CHOFF "Channel id offset\n"
#define CONFIG_HLP_SOFTS "Enable soft scope and L1 and L2 stats (Xforms)\n"
#define CONFIG_HLP_EXMCAL "Calibrate the EXMIMO borad, available files: exmimo2_2arxg.lime exmimo2_2brxg.lime \n"
#define CONFIG_HLP_ITTIL "Generate ITTI analyzser logs (similar to wireshark logs but with more details)\n"
#define CONFIG_HLP_DLMCS "Set the maximum downlink MCS\n"
#define CONFIG_HLP_STMON "Enable processing timing measurement of lte softmodem on per subframe basis \n"
#define CONFIG_HLP_PRB "Set the PRB, valid values: 6, 25, 50, 100 \n"
#define CONFIG_HLP_EMULIFACE "Set the interface name for the multicast transport for emulation mode (e.g. eth0, lo, etc.) \n"
//#define CONFIG_HLP_NUMUES "Set the number of UEs for the emulation"
#define CONFIG_HLP_MSLOTS "Skip the missed slots/subframes \n"
#define CONFIG_HLP_ULMCS "Set the maximum uplink MCS\n"
#define CONFIG_HLP_TDD "Set hardware to TDD mode (default: FDD). Used only with -U (otherwise set in config file).\n"
#define CONFIG_HLP_UE "Set the lte softmodem as a UE\n"
#define CONFIG_HLP_TQFS "Apply three-quarter of sampling frequency, 23.04 Msps to reduce the data rate on USB/PCIe transfers (only valid for 20 MHz)\n"
#define CONFIG_HLP_TPORT "tracer port\n"
#define CONFIG_HLP_NOTWAIT "don't wait for tracer, start immediately\n"
#define CONFIG_HLP_TNOFORK "to ease debugging with gdb\n"
#define CONFIG_HLP_NUMEROLOGY "adding numerology for 5G\n"
#define CONFIG_HLP_EMULATE_RF "Emulated RF enabled(disable by defult)\n"
#define CONFIG_HLP_PARALLEL_CMD "three config for level of parallelism 'PARALLEL_SINGLE_THREAD', 'PARALLEL_RU_L1_SPLIT', or 'PARALLEL_RU_L1_TRX_SPLIT'\n"
#define CONFIG_HLP_WORKER_CMD "two option for worker 'WORKER_DISABLE' or 'WORKER_ENABLE'\n"
#define CONFIG_HLP_NOS1 "Disable s1 interface\n"
#define CONFIG_HLP_RFSIM "Run in rf simulator mode (also known as basic simulator)\n"
#define CONFIG_HLP_NOKRNMOD "(noS1 only): Use tun instead of namesh module \n"
#define CONFIG_HLP_DISABLNBIOT "disable nb-iot, even if defined in config\n"
#define CONFIG_HLP_USRP_ARGS "set the arguments to identify USRP (same syntax as in UHD)\n"
/***************************************************************************************************************************************/
/* command line options definitions, CMDLINE_XXXX_DESC macros are used to initialize paramdef_t arrays which are then used as argument
@@ -121,6 +65,31 @@
#define CMDLINE_MEMLOOP_IDX 6
#define CMDLINE_DUMPMEMORY_IDX 7
/*------------------------------------------------------------------------------------------------------------------------------------------*/
/* help strings definition for command line options, used in CMDLINE_XXX_DESC macros and printed when -h option is used */
#define CONFIG_HLP_SIML1 "activate RF simulator instead of HW\n"
#define CONFIG_HLP_NUMUE "number of UE instances\n"
#define CONFIG_HLP_UERXG "set UE RX gain\n"
#define CONFIG_HLP_UERXGOFF "external UE amplifier offset\n"
#define CONFIG_HLP_UETXG "set UE TX gain\n"
#define CONFIG_HLP_UENANTR "set UE number of rx antennas\n"
#define CONFIG_HLP_UENANTT "set UE number of tx antennas\n"
#define CONFIG_HLP_UESCAN "set UE to scan around carrier\n"
#define CONFIG_HLP_EMULIFACE "Set the interface name for the multicast transport for emulation mode (e.g. eth0, lo, etc.) \n"
#define CONFIG_HLP_PRB "Set the PRB, valid values: 6, 25, 50, 100 \n"
#define CONFIG_HLP_DLSHIFT "dynamic shift for LLR compuation for TM3/4 (default 0)\n"
#define CONFIG_HLP_USRP_ARGS "set the arguments to identify USRP (same syntax as in UHD)\n"
#define CONFIG_HLP_DMAMAP "sets flag for improved EXMIMO UE performance\n"
#define CONFIG_HLP_CLK "tells hardware to use a clock reference (0:internal, 1:external, 2:gpsdo)\n"
#define CONFIG_HLP_TDD "Set hardware to TDD mode (default: FDD). Used only with -U (otherwise set in config file).\n"
#define CONFIG_HLP_TADV "Set timing_advance\n"
/*-------------------------------------------------------------------------------------------------------------------------------------------------------*/
@@ -166,99 +135,7 @@
#define DEFAULT_DLF 2680000000
/*-----------------------------------------------------------------------------------------------------------------------------------------------------*/
/* command line parameters common to eNodeB and UE */
/* optname helpstr paramflags XXXptr defXXXval type numelt */
/*-----------------------------------------------------------------------------------------------------------------------------------------------------*/
#define RF_CONFIG_FILE softmodem_params.rf_config_file
#define PHY_TEST softmodem_params.phy_test
#define WAIT_FOR_SYNC softmodem_params.wait_for_sync
#define SINGLE_THREAD_FLAG softmodem_params.single_thread_flag
#define CHAIN_OFFSET softmodem_params.chain_offset
#define NUMEROLOGY softmodem_params.numerology
#define EMULATE_RF softmodem_params.emulate_rf
#define CLOCK_SOURCE softmodem_params.clock_source
#define TIMING_SOURCE softmodem_params.timing_source
#define SEND_DMRSSYNC softmodem_params.send_dmrs_sync
#define USIM_TEST softmodem_params.usim_test
#define CMDLINE_PARAMS_DESC { \
{"rf-config-file", CONFIG_HLP_RFCFGF, 0, strptr:(char **)&RF_CONFIG_FILE, defstrval:NULL, TYPE_STRING, sizeof(RF_CONFIG_FILE)},\
{"ulsch-max-errors", CONFIG_HLP_ULMAXE, 0, uptr:&ULSCH_max_consecutive_errors, defuintval:0, TYPE_UINT, 0}, \
{"phy-test", CONFIG_HLP_PHYTST, PARAMFLAG_BOOL, iptr:&PHY_TEST, defintval:0, TYPE_INT, 0}, \
{"usim-test", CONFIG_HLP_USIM, PARAMFLAG_BOOL, u8ptr:&USIM_TEST, defintval:0, TYPE_UINT8, 0}, \
{"clock", CONFIG_HLP_CLK, 0, uptr:&CLOCK_SOURCE, defintval:0, TYPE_UINT, 0}, \
{"wait-for-sync", NULL, PARAMFLAG_BOOL, iptr:&WAIT_FOR_SYNC, defintval:0, TYPE_INT, 0}, \
{"single-thread-enable", CONFIG_HLP_NOSNGLT, PARAMFLAG_BOOL, iptr:&SINGLE_THREAD_FLAG, defintval:0, TYPE_INT, 0}, \
{"C" , CONFIG_HLP_DLF, 0, uptr:&(downlink_frequency[0][0]), defuintval:2680000000, TYPE_UINT, 0}, \
{"a" , CONFIG_HLP_CHOFF, 0, iptr:&CHAIN_OFFSET, defintval:0, TYPE_INT, 0}, \
{"d" , CONFIG_HLP_SOFTS, PARAMFLAG_BOOL, uptr:(uint32_t *)&do_forms, defintval:0, TYPE_INT8, 0}, \
{"q" , CONFIG_HLP_STMON, PARAMFLAG_BOOL, iptr:&opp_enabled, defintval:0, TYPE_INT, 0}, \
{"S" , CONFIG_HLP_MSLOTS, PARAMFLAG_BOOL, u8ptr:&exit_missed_slots, defintval:1, TYPE_UINT8, 0}, \
{"numerology" , CONFIG_HLP_NUMEROLOGY, PARAMFLAG_BOOL, iptr:&NUMEROLOGY, defintval:0, TYPE_INT, 0}, \
{"emulate-rf" , CONFIG_HLP_EMULATE_RF, PARAMFLAG_BOOL, iptr:&EMULATE_RF, defintval:0, TYPE_INT, 0}, \
{"parallel-config", CONFIG_HLP_PARALLEL_CMD, 0, strptr:(char **)&parallel_config, defstrval:NULL, TYPE_STRING, 0}, \
{"worker-config", CONFIG_HLP_WORKER_CMD, 0, strptr:(char **)&worker_config, defstrval:NULL, TYPE_STRING, 0}, \
{"noS1", CONFIG_HLP_NOS1, PARAMFLAG_BOOL, uptr:&noS1, defintval:0, TYPE_INT, 0}, \
{"rfsim", CONFIG_HLP_RFSIM, PARAMFLAG_BOOL, uptr:&rfsim, defintval:0, TYPE_INT, 0}, \
{"basicsim", CONFIG_HLP_RFSIM, PARAMFLAG_BOOL, uptr:&basicsim, defintval:0, TYPE_INT, 0}, \
{"nokrnmod", CONFIG_HLP_NOKRNMOD, PARAMFLAG_BOOL, uptr:&nokrnmod, defintval:0, TYPE_INT, 0}, \
{"nbiot-disable", CONFIG_HLP_DISABLNBIOT, PARAMFLAG_BOOL, uptr:&nonbiot, defuintval:0, TYPE_INT, 0}, \
}
#define CONFIG_HLP_FLOG "Enable online log \n"
#define CONFIG_HLP_LOGL "Set the global log level, valid options: (4:trace, 3:debug, 2:info, 1:warn, (0:error))\n"
#define CONFIG_HLP_LOGV "Set the global log verbosity \n"
#define CONFIG_HLP_TELN "Start embedded telnet server \n"
#define CONFIG_HLP_MSC "Enable the MSC tracing utility \n"
/*----------------------------------------------------------------------------------------------------------------------------*/
/* command line parameters for LOG utility */
/* optname helpstr paramflags XXXptr defXXXval type numelt */
/*----------------------------------------------------------------------------------------------------------------------------*/
#define START_MSC softmodem_params.start_msc
#define CMDLINE_LOGPARAMS_DESC { \
{"R" , CONFIG_HLP_FLOG, 0, uptr:&online_log_messages, defintval:1, TYPE_INT, 0}, \
{"g" , CONFIG_HLP_LOGL, 0, uptr:&glog_level, defintval:0, TYPE_UINT, 0}, \
{"telnetsrv", CONFIG_HLP_TELN, PARAMFLAG_BOOL, uptr:&start_telnetsrv, defintval:0, TYPE_UINT, 0}, \
{"msc", CONFIG_HLP_MSC, PARAMFLAG_BOOL, uptr:&START_MSC, defintval:0, TYPE_UINT, 0}, \
{"log-mem", NULL, 0, strptr:(char **)&logmem_filename, defstrval:NULL, TYPE_STRING, 0}, \
}
#define CMDLINE_ONLINELOG_IDX 0
#define CMDLINE_GLOGLEVEL_IDX 1
#define CMDLINE_GLOGVERBO_IDX 2
#define CMDLINE_STARTTELN_IDX 3
/* check function for global log level */
#define CMDLINE_LOGPARAMS_CHECK_DESC { \
{ .s5= {NULL} } , \
{ .s2= {config_check_intrange, {0,4}}}, \
{ .s5= {NULL} } , \
{ .s5= {NULL} } , \
{ .s5= {NULL} } , \
}
/***************************************************************************************************************************************/
#define SOFTMODEM_NOS1_BIT (1<<0)
#define SOFTMODEM_NOKRNMOD_BIT (1<<1)
#define SOFTMODEM_NONBIOT_BIT (1<<2)
#define SOFTMODEM_RFSIM_BIT (1<<10)
#define SOFTMODEM_BASICSIM_BIT (1<<11)
#define SOFTMODEM_SIML1_BIT (1<<12)
#define SOFTMODEM_DOFORMS_BIT (1<<15)
#define IS_SOFTMODEM_NOS1 ( get_softmodem_optmask() & SOFTMODEM_NOS1_BIT)
#define IS_SOFTMODEM_NOKRNMOD ( get_softmodem_optmask() & SOFTMODEM_NOKRNMOD_BIT)
#define IS_SOFTMODEM_NONBIOT ( get_softmodem_optmask() & SOFTMODEM_NONBIOT_BIT)
#define IS_SOFTMODEM_RFSIM ( get_softmodem_optmask() & SOFTMODEM_RFSIM_BIT)
#define IS_SOFTMODEM_BASICSIM ( get_softmodem_optmask() & SOFTMODEM_BASICSIM_BIT)
#define IS_SOFTMODEM_SIML1 ( get_softmodem_optmask() & SOFTMODEM_SIML1_BIT)
#define IS_SOFTMODEM_DOFORMS ( get_softmodem_optmask() & SOFTMODEM_DOFORMS_BIT)
extern uint64_t get_softmodem_optmask(void);
extern uint64_t set_softmodem_optmask(uint64_t bitmask);
extern void get_common_options(void);
extern softmodem_params_t *get_softmodem_params(void);
extern unsigned int is_nos1exec(char *exepath) ;
uint64_t get_pdcp_optmask(void);
extern pthread_cond_t sync_cond;
extern pthread_mutex_t sync_mutex;
@@ -268,7 +145,6 @@ extern uint32_t downlink_frequency[MAX_NUM_CCs][4];
extern int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
extern int rx_input_level_dBm;
extern uint8_t exit_missed_slots;
extern uint64_t num_missed_slots; // counter for the number of missed slots
extern int oaisim_flag;
+1 -28
View File
@@ -169,7 +169,6 @@ int rx_input_level_dBm;
static LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs];
uint8_t exit_missed_slots=1;
uint64_t num_missed_slots=0; // counter for the number of missed slots
// prototypes from function implemented in lte-ue.c, probably should be elsewhere in a include file.
@@ -264,26 +263,6 @@ unsigned int build_rfdc(int dcoff_i_rxfe, int dcoff_q_rxfe) {
}
void signal_handler(int sig) {
void *array[10];
size_t size;
if (sig==SIGSEGV) {
// get void*'s for all entries on the stack
size = backtrace(array, 10);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
backtrace_symbols_fd(array, size, 2);
exit(-1);
} else {
char msg[64];
sprintf(msg,"Received linux signal %s...\n",strsignal(sig));
exit_function(__FILE__, __FUNCTION__, __LINE__,msg);
}
}
void exit_function(const char *file, const char *function, const int line, const char *s) {
int CC_id;
logClean();
@@ -596,9 +575,6 @@ int main( int argc, char **argv ) {
get_options ();
if (is_nos1exec(argv[0]) )
set_softmodem_optmask(SOFTMODEM_NOS1_BIT);
EPC_MODE_ENABLED = !IS_SOFTMODEM_NOS1;
printf("Running with %d UE instances\n",NB_UE_INST);
@@ -645,10 +621,7 @@ int main( int argc, char **argv ) {
printf ("PDCP PC5S socket\n");
pdcp_pc5_socket_init();
// to make a graceful exit when ctrl-c is pressed
signal(SIGSEGV, signal_handler);
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
signal(SIGABRT, signal_handler);
set_softmodem_sighandler();
check_clock();
#ifndef PACKAGE_VERSION
# define PACKAGE_VERSION "UNKNOWN-EXPERIMENTAL"