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Add stepping and clean up

This commit is contained in:
Jeffrey Pfau 2014-02-01 15:50:12 -08:00
parent 325380989c
commit d97976d0df
1 changed files with 14 additions and 2 deletions
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16
src/debugger/gdb-stub.c
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@ -150,7 +150,6 @@ static void _sendMessage(struct GDBStub* stub) {
stub->outgoing[i] = '#'; stub->outgoing[i] = '#';
_int2hex8(checksum, &stub->outgoing[i + 1]); _int2hex8(checksum, &stub->outgoing[i + 1]);
stub->outgoing[i + 3] = 0; stub->outgoing[i + 3] = 0;
printf("> %s\n", stub->outgoing);
send(stub->connection, stub->outgoing, i + 3, 0); send(stub->connection, stub->outgoing, i + 3, 0);
} }
@ -175,6 +174,15 @@ static void _continue(struct GDBStub* stub, const char* message) {
fcntl(stub->connection, F_SETFL, flags | O_NONBLOCK); fcntl(stub->connection, F_SETFL, flags | O_NONBLOCK);
} }
// TODO: parse message // TODO: parse message
(void) (message);
}
static void _step(struct GDBStub* stub, const char* message) {
ARMRun(stub->d.cpu);
snprintf(stub->outgoing, GDB_STUB_MAX_LINE - 4, "S%02x", SIGINT);
_sendMessage(stub);
// TODO: parse message
(void) (message);
} }
static void _readMemory(struct GDBStub* stub, const char* message) { static void _readMemory(struct GDBStub* stub, const char* message) {
@ -258,6 +266,7 @@ static void _processQWriteCommand(struct GDBStub* stub, const char* message) {
} }
static void _processVWriteCommand(struct GDBStub* stub, const char* message) { static void _processVWriteCommand(struct GDBStub* stub, const char* message) {
(void) (message);
stub->outgoing[0] = '\0'; stub->outgoing[0] = '\0';
_sendMessage(stub); _sendMessage(stub);
} }
@ -280,6 +289,7 @@ static void _setBreakpoint(struct GDBStub* stub, const char* message) {
uint32_t address = _readHex(readAddress, &i); uint32_t address = _readHex(readAddress, &i);
readAddress += i + 1; readAddress += i + 1;
uint32_t kind = _readHex(readAddress, &i); // We don't use this in hardware watchpoints uint32_t kind = _readHex(readAddress, &i); // We don't use this in hardware watchpoints
(void) (kind);
ARMDebuggerSetBreakpoint(&stub->d, address); ARMDebuggerSetBreakpoint(&stub->d, address);
strncpy(stub->outgoing, "OK", GDB_STUB_MAX_LINE - 4); strncpy(stub->outgoing, "OK", GDB_STUB_MAX_LINE - 4);
_sendMessage(stub); _sendMessage(stub);
@ -316,7 +326,6 @@ static void _clearBreakpoint(struct GDBStub* stub, const char* message) {
size_t _parseGDBMessage(struct GDBStub* stub, const char* message) { size_t _parseGDBMessage(struct GDBStub* stub, const char* message) {
uint8_t checksum = 0; uint8_t checksum = 0;
int parsed = 1; int parsed = 1;
printf("< %s\n", stub->line);
switch (*message) { switch (*message) {
case '+': case '+':
stub->lineAck = GDB_ACK_RECEIVED; stub->lineAck = GDB_ACK_RECEIVED;
@ -392,6 +401,9 @@ size_t _parseGDBMessage(struct GDBStub* stub, const char* message) {
case 'q': case 'q':
_processQReadCommand(stub, message); _processQReadCommand(stub, message);
break; break;
case 's':
_step(stub, message);
break;
case 'V': case 'V':
_processVWriteCommand(stub, message); _processVWriteCommand(stub, message);
break; break;