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Add watchpoints to gdb stub

This commit is contained in:
Jeffrey Pfau 2014-09-01 02:24:00 -07:00
parent 21437e91f6
commit 9cdc93eeed
1 changed files with 22 additions and 17 deletions
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39
src/debugger/gdb-stub.c
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@ -279,23 +279,27 @@ static void _processVReadCommand(struct GDBStub* stub, const char* message) {
}
static void _setBreakpoint(struct GDBStub* stub, const char* message) {
const char* readAddress = &message[2];
unsigned i = 0;
uint32_t address = _readHex(readAddress, &i);
readAddress += i + 1;
uint32_t kind = _readHex(readAddress, &i); // We don't use this in hardware watchpoints
UNUSED(kind);
switch (message[0]) {
case '0': // Memory breakpoints are not currently supported
case '1': {
const char* readAddress = &message[2];
unsigned i = 0;
uint32_t address = _readHex(readAddress, &i);
readAddress += i + 1;
uint32_t kind = _readHex(readAddress, &i); // We don't use this in hardware watchpoints
UNUSED(kind);
case '1':
ARMDebuggerSetBreakpoint(&stub->d, address);
strncpy(stub->outgoing, "OK", GDB_STUB_MAX_LINE - 4);
_sendMessage(stub);
break;
}
case '2':
case '3':
// TODO: Watchpoints
case '4':
ARMDebuggerSetWatchpoint(&stub->d, address);
strncpy(stub->outgoing, "OK", GDB_STUB_MAX_LINE - 4);
_sendMessage(stub);
break;
default:
stub->outgoing[0] = '\0';
_sendMessage(stub);
@ -304,23 +308,24 @@ static void _setBreakpoint(struct GDBStub* stub, const char* message) {
}
static void _clearBreakpoint(struct GDBStub* stub, const char* message) {
const char* readAddress = &message[2];
unsigned i = 0;
uint32_t address = _readHex(readAddress, &i);
switch (message[0]) {
case '0': // Memory breakpoints are not currently supported
case '1': {
const char* readAddress = &message[2];
unsigned i = 0;
uint32_t address = _readHex(readAddress, &i);
case '1':
ARMDebuggerClearBreakpoint(&stub->d, address);
strncpy(stub->outgoing, "OK", GDB_STUB_MAX_LINE - 4);
_sendMessage(stub);
break;
}
case '2':
case '3':
// TODO: Watchpoints
case '4':
ARMDebuggerClearWatchpoint(&stub->d, address);
break;
default:
break;
}
strncpy(stub->outgoing, "OK", GDB_STUB_MAX_LINE - 4);
_sendMessage(stub);
}
size_t _parseGDBMessage(struct GDBStub* stub, const char* message) {