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Add n command, and command repetition

This commit is contained in:
Jeffrey Pfau 2013-04-13 14:06:57 -07:00
parent 4df2d6de8f
commit baad7b50bd
2 changed files with 29 additions and 8 deletions
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35
src/debugger.c
View File

@ -29,6 +29,7 @@ typedef void (DebuggerComamnd)(struct ARMDebugger*, struct DebugVector*);
static void _breakInto(struct ARMDebugger*, struct DebugVector*);
static void _continue(struct ARMDebugger*, struct DebugVector*);
static void _next(struct ARMDebugger*, struct DebugVector*);
static void _print(struct ARMDebugger*, struct DebugVector*);
static void _printHex(struct ARMDebugger*, struct DebugVector*);
static void _printStatus(struct ARMDebugger*, struct DebugVector*);
@ -45,6 +46,7 @@ struct {
{ "continue", _continue },
{ "i", _printStatus },
{ "info", _printStatus },
{ "n", _next },
{ "p", _print },
{ "print", _print },
{ "p/x", _printHex },
@ -88,6 +90,12 @@ static void _continue(struct ARMDebugger* debugger, struct DebugVector* dv) {
debugger->state = DEBUGGER_RUNNING;
}
static void _next(struct ARMDebugger* debugger, struct DebugVector* dv) {
(void)(dv);
ARMRun(debugger->cpu);
_printStatus(debugger, 0);
}
static void _print(struct ARMDebugger* debugger, struct DebugVector* dv) {
(void)(debugger);
for ( ; dv; dv = dv->next) {
@ -413,7 +421,7 @@ static void _DVFree(struct DebugVector* dv) {
}
}
static void _parse(struct ARMDebugger* debugger, const char* line) {
static int _parse(struct ARMDebugger* debugger, const char* line) {
char* firstSpace = strchr(line, ' ');
size_t cmdLength;
struct DebugVector* dv = 0;
@ -423,7 +431,7 @@ static void _parse(struct ARMDebugger* debugger, const char* line) {
if (dv->type == ERROR_TYPE) {
printf("Parse error\n");
_DVFree(dv);
return;
return 0;
}
} else {
cmdLength = strlen(line);
@ -438,13 +446,12 @@ static void _parse(struct ARMDebugger* debugger, const char* line) {
if (strncasecmp(name, line, cmdLength) == 0) {
debuggerCommands[i].command(debugger, dv);
_DVFree(dv);
linenoiseHistoryAdd(line);
return;
return 1;
}
}
_DVFree(dv);
ARMRun(debugger->cpu);
_printStatus(debugger, 0);
printf("Command not found\n");
return 0;
}
static void _commandLine(struct ARMDebugger* debugger) {
@ -456,8 +463,20 @@ static void _commandLine(struct ARMDebugger* debugger) {
debugger->state = DEBUGGER_EXITING;
return;
}
_parse(debugger, line);
free(line);
if (!line[0]) {
if (debugger->lastCommand) {
_parse(debugger, debugger->lastCommand);
}
} else {
linenoiseHistoryAdd(line);
if (_parse(debugger, line)) {
char* oldLine = debugger->lastCommand;
debugger->lastCommand = line;
free(oldLine);
} else {
free(line);
}
}
}
}

2
src/debugger.h
View File

@ -10,6 +10,8 @@ enum DebuggerState {
struct ARMDebugger {
enum DebuggerState state;
struct ARMCore* cpu;
char* lastCommand;
};
void ARMDebuggerInit(struct ARMDebugger*, struct ARMCore*);