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Multithread gdbstub and execution, with cont/halt

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This commit is contained in:
Valentin Haudiquet
2023-10-08 17:42:44 +02:00
parent a10f56446a
commit f52699a8bf
4 changed files with 28 additions and 1 deletions
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12
src/gdbstub/gdbstub.c
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@@ -24,6 +24,7 @@ typedef struct sockaddr sockaddr_t;
socket_t gdbstub_server_socket;
socket_t gdb_socket;
pthread_t gdbstub_thread;
void gdbstub_thread_gdb();
static void gdbstub_handle_ctrlc();
@@ -159,7 +160,7 @@ void gdbstub_wait_for_connection()
gdb_socket = c_socket;
gdbstub_thread_gdb();
pthread_create(&gdbstub_thread, 0, (void*) gdbstub_thread_gdb, 0);
}
void gdbstub_thread_gdb()
@@ -285,6 +286,8 @@ void gdbstub_thread_gdb()
{
// s : single-step
// TODO : Implement that correctly
// Send back halt reason
// Halt Reason : Signal 05 (SIGTRAP)
char* resp = "S05";
@@ -298,6 +301,10 @@ void gdbstub_thread_gdb()
send(gdb_socket, "+", 1, 0);
// Continue simulation
pthread_mutex_lock(&cpu0_mutex);
cpu0->sim_ticks_left = -1;
pthread_mutex_unlock(&cpu0_mutex);
pthread_cond_signal(&cpu0->sim_condition);
}
else gdbstub_send_unsupported();
}
@@ -310,6 +317,9 @@ void gdbstub_thread_gdb()
static void gdbstub_handle_ctrlc()
{
// Halt the simulation
pthread_mutex_lock(&cpu0_mutex);
cpu0->sim_ticks_left = 0;
pthread_mutex_unlock(&cpu0_mutex);
// Send back halt signal to gdb
// Halt Reason : Signal 05 (SIGTRAP)