diff --git a/common/utils/T/T.c b/common/utils/T/T.c index b9e9b29326..5d84afa660 100644 --- a/common/utils/T/T.c +++ b/common/utils/T/T.c @@ -107,7 +107,7 @@ static void monitor_and_kill(int child1, int child2) exit(0); } -void T_init(int remote_port, int wait_for_tracer) +void T_init(int remote_port, int wait_for_tracer, int dont_fork) { int socket_pair[2]; int s; @@ -117,7 +117,7 @@ void T_init(int remote_port, int wait_for_tracer) if (socketpair(AF_UNIX, SOCK_STREAM, 0, socket_pair)) { perror("socketpair"); abort(); } - /* child1 runs the local tracer and child2 runs the tracee */ + /* child1 runs the local tracer and child2 (or main) runs the tracee */ child1 = fork(); if (child1 == -1) abort(); if (child1 == 0) { @@ -127,10 +127,12 @@ void T_init(int remote_port, int wait_for_tracer) } close(socket_pair[0]); - child2 = fork(); if (child2 == -1) abort(); - if (child2 != 0) { - close(socket_pair[1]); - monitor_and_kill(child1, child2); + if (dont_fork == 0) { + child2 = fork(); if (child2 == -1) abort(); + if (child2 != 0) { + close(socket_pair[1]); + monitor_and_kill(child1, child2); + } } s = socket_pair[1]; diff --git a/common/utils/T/T.h b/common/utils/T/T.h index a5aacb4b4f..819615131e 100644 --- a/common/utils/T/T.h +++ b/common/utils/T/T.h @@ -562,7 +562,7 @@ extern T_cache_t *T_cache; extern int *T_active; -void T_init(int remote_port, int wait_for_tracer); +void T_init(int remote_port, int wait_for_tracer, int dont_fork); #else /* T_TRACER */ diff --git a/targets/RT/USER/lte-softmodem.c b/targets/RT/USER/lte-softmodem.c index ca97ad0e22..3f419ed49c 100644 --- a/targets/RT/USER/lte-softmodem.c +++ b/targets/RT/USER/lte-softmodem.c @@ -490,6 +490,7 @@ void help (void) { #if T_TRACER printf(" --T_port [port] use given port\n"); printf(" --T_nowait don't wait for tracer, start immediately\n"); + printf(" --T_dont_fork to ease debugging with gdb\n"); #endif printf(RESET); fflush(stdout); @@ -2332,6 +2333,7 @@ static void get_options (int argc, char **argv) #if T_TRACER LONG_OPTION_T_PORT, LONG_OPTION_T_NOWAIT, + LONG_OPTION_T_DONT_FORK, #endif }; @@ -2355,6 +2357,7 @@ static void get_options (int argc, char **argv) #if T_TRACER {"T_port", required_argument, 0, LONG_OPTION_T_PORT}, {"T_nowait", no_argument, 0, LONG_OPTION_T_NOWAIT}, + {"T_dont_fork", no_argument, 0, LONG_OPTION_T_DONT_FORK}, #endif {NULL, 0, NULL, 0} @@ -2457,6 +2460,12 @@ static void get_options (int argc, char **argv) T_wait = 0; break; } + + case LONG_OPTION_T_DONT_FORK: { + extern int T_dont_fork; + T_dont_fork = 1; + break; + } #endif case 'A': @@ -2822,6 +2831,7 @@ static void get_options (int argc, char **argv) #if T_TRACER int T_wait = 1; /* by default we wait for the tracer */ int T_port = 2021; /* default port to listen to to wait for the tracer */ +int T_dont_fork = 0; /* default is to fork, see 'T_init' to understand */ #endif int main( int argc, char **argv ) @@ -2894,7 +2904,7 @@ int main( int argc, char **argv ) openair0_cfg[0].configFilename = rf_config_file; #if T_TRACER - T_init(T_port, T_wait); + T_init(T_port, T_wait, T_dont_fork); #endif // initialize the log (see log.h for details) diff --git a/targets/SIMU/USER/oaisim.c b/targets/SIMU/USER/oaisim.c index dfbf8f9676..744952b5d0 100644 --- a/targets/SIMU/USER/oaisim.c +++ b/targets/SIMU/USER/oaisim.c @@ -250,6 +250,7 @@ help (void) #if T_TRACER printf ("--T_port [port] use given port\n"); printf ("--T_nowait don't wait for tracer, start immediately\n"); + printf ("--T_dont_fork to ease debugging with gdb\n"); #endif } @@ -1258,6 +1259,7 @@ l2l1_task (void *args_p) #if T_TRACER int T_wait = 1; /* by default we wait for the tracer */ int T_port = 2021; /* default port to listen to to wait for the tracer */ +int T_dont_fork = 0; /* default is to fork, see 'T_init' to understand */ #endif /*------------------------------------------------------------------------------*/ @@ -1294,7 +1296,7 @@ main (int argc, char **argv) get_simulation_options (argc, argv); //Command-line options #if T_TRACER - T_init(T_port, T_wait); + T_init(T_port, T_wait, T_dont_fork); #endif // Initialize VCD LOG module diff --git a/targets/SIMU/USER/oaisim_functions.c b/targets/SIMU/USER/oaisim_functions.c index f8043b2cfd..a5acb2616a 100644 --- a/targets/SIMU/USER/oaisim_functions.c +++ b/targets/SIMU/USER/oaisim_functions.c @@ -216,6 +216,7 @@ void get_simulation_options(int argc, char *argv[]) #if T_TRACER LONG_OPTION_T_PORT, LONG_OPTION_T_NOWAIT, + LONG_OPTION_T_DONT_FORK, #endif }; @@ -254,6 +255,7 @@ void get_simulation_options(int argc, char *argv[]) #if T_TRACER {"T_port", required_argument, 0, LONG_OPTION_T_PORT}, {"T_nowait", no_argument, 0, LONG_OPTION_T_NOWAIT}, + {"T_dont_fork", no_argument, 0, LONG_OPTION_T_DONT_FORK}, #endif {NULL, 0, NULL, 0} @@ -436,6 +438,12 @@ void get_simulation_options(int argc, char *argv[]) T_wait = 0; break; } + + case LONG_OPTION_T_DONT_FORK: { + extern int T_dont_fork; + T_dont_fork = 1; + break; + } #endif case 'a':