1#include "commandline.h"
  2
  3#ifdef USE_CLI_DEBUGGER
  4#include "debugger/cli-debugger.h"
  5#endif
  6
  7#ifdef USE_GDB_STUB
  8#include "debugger/gdb-stub.h"
  9#endif
 10
 11#include <fcntl.h>
 12#include <getopt.h>
 13
 14static const char* _defaultFilename = "test.rom";
 15
 16static const struct option _options[] = {
 17	{ "bios", 1, 0, 'b' },
 18	{ "debug", 1, 0, 'd' },
 19	{ "gdb", 1, 0, 'g' },
 20	{ 0, 0, 0, 0 }
 21};
 22
 23int parseCommandArgs(struct StartupOptions* opts, int argc, char* const* argv) {
 24	memset(opts, 0, sizeof(*opts));
 25	opts->fd = -1;
 26	opts->biosFd = -1;
 27	opts->width = 240;
 28	opts->height = 160;
 29	opts->fullscreen = 0;
 30
 31	int multiplier = 1;
 32	int ch;
 33	while ((ch = getopt_long(argc, argv, "234b:dfg", _options, 0)) != -1) {
 34		switch (ch) {
 35		case 'b':
 36			opts->biosFd = open(optarg, O_RDONLY);
 37			break;
 38#ifdef USE_CLI_DEBUGGER
 39		case 'd':
 40			if (opts->debuggerType != DEBUGGER_NONE) {
 41				return 0;
 42			}
 43			opts->debuggerType = DEBUGGER_CLI;
 44			break;
 45#endif
 46		case 'f':
 47			opts->fullscreen = 1;
 48			break;
 49#ifdef USE_GDB_STUB
 50		case 'g':
 51			if (opts->debuggerType != DEBUGGER_NONE) {
 52				return 0;
 53			}
 54			opts->debuggerType = DEBUGGER_GDB;
 55			break;
 56#endif
 57		case '2':
 58			multiplier = 2;
 59			break;
 60		case '3':
 61			multiplier = 3;
 62			break;
 63		case '4':
 64			multiplier = 4;
 65			break;
 66		default:
 67			return 0;
 68		}
 69	}
 70	argc -= optind;
 71	argv += optind;
 72	if (argc == 1) {
 73		opts->fname = argv[0];
 74	} else if (argc == 0) {
 75		opts->fname = _defaultFilename;
 76	} else {
 77		return 0;
 78	}
 79	opts->fd = open(opts->fname, O_RDONLY);
 80	opts->width *= multiplier;
 81	opts->height *= multiplier;
 82	return 1;
 83}
 84
 85struct ARMDebugger* createDebugger(struct StartupOptions* opts) {
 86	union DebugUnion {
 87		struct ARMDebugger d;
 88#ifdef USE_CLI_DEBUGGER
 89		struct CLIDebugger cli;
 90#endif
 91#ifdef USE_GDB_STUB
 92		struct GDBStub gdb;
 93#endif
 94	};
 95
 96	union DebugUnion* debugger = malloc(sizeof(union DebugUnion));
 97
 98	switch (opts->debuggerType) {
 99#ifdef USE_CLI_DEBUGGER
100	case DEBUGGER_CLI:
101		CLIDebuggerCreate(&debugger->cli);
102		break;
103#endif
104#ifdef USE_GDB_STUB
105	case DEBUGGER_GDB:
106		GDBStubCreate(&debugger->gdb);
107		GDBStubListen(&debugger->gdb, 2345, 0);
108		break;
109#endif
110	case DEBUGGER_NONE:
111	case DEBUGGER_MAX:
112		free(debugger);
113		return 0;
114		break;
115	}
116
117	return &debugger->d;
118}
119
120void usage(const char* arg0) {
121	printf("usage: %s [option ...] file\n", arg0);
122	printf("\nOptions:\n");
123	printf("  -2               2x viewport\n");
124	printf("  -3               3x viewport\n");
125	printf("  -4               4x viewport\n");
126	printf("  -b, --bios FILE  GBA BIOS file to use\n");
127#ifdef USE_CLI_DEBUGGER
128	printf("  -d, --debug      Use command-line debugger\n");
129#endif
130	printf("  -f               Sart full-screen\n");
131#ifdef USE_GDB_STUB
132	printf("  -g, --gdb        Start GDB session (default port 2345)\n");
133#endif
134}