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root/cebix/SheepShaver/src/Unix/main_unix.cpp

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.74 by gbeauche, 2006-05-01T22:33:34Z vs.
Revision 1.98 by asvitkine, 2011-12-30T17:38:39Z

#	Line 1 | Line 1
1		/*
2		*  main_unix.cpp - Emulation core, Unix implementation
3		*
4	<	*  SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
4	>	*  SheepShaver (C) Christian Bauer and Marc Hellwig
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 89 | Line 89
89		#include <sys/mman.h>
90		#include <sys/ipc.h>
91		#include <sys/shm.h>
92	+	#include <sys/stat.h>
93		#include <signal.h>
94
95		#include "sysdeps.h"
#	Line 135 | Line 136
136		#ifdef ENABLE_XF86_DGA
137		#include <X11/Xlib.h>
138		#include <X11/Xutil.h>
139	<	#include <X11/extensions/xf86dga.h>
139	>	#include <X11/extensions/Xxf86dga.h>
140		#endif
141
142		#ifdef ENABLE_MON
#	Line 160 | Line 161
161		const char ROM_FILE_NAME[] = "ROM";
162		const char ROM_FILE_NAME2[] = "Mac OS ROM";
163
164	<	#if REAL_ADDRESSING
164	<	const uintptr RAM_BASE = 0x20000000;            // Base address of RAM
165	<	#else
164	>	#if !REAL_ADDRESSING
165		// FIXME: needs to be >= 0x04000000
166		const uintptr RAM_BASE = 0x10000000;            // Base address of RAM
167		#endif
168	+	const uintptr ROM_BASE = 0x40800000;            // Base address of ROM
169	+	#if REAL_ADDRESSING
170	+	const uint32 ROM_ALIGNMENT = 0x100000;          // ROM must be aligned to a 1MB boundary
171	+	#endif
172		const uint32 SIG_STACK_SIZE = 0x10000;          // Size of signal stack
173
174
#	Line 176 | Line 179 | void *R13 = NULL;              // Pointer to .sdata
179		#endif
180		uint32 RAMBase;                 // Base address of Mac RAM
181		uint32 RAMSize;                 // Size of Mac RAM
182	+	uint32 ROMBase;                 // Base address of Mac ROM
183		uint32 KernelDataAddr;  // Address of Kernel Data
184		uint32 BootGlobsAddr;   // Address of BootGlobs structure at top of Mac RAM
185		uint32 DRCacheAddr;             // Address of DR Cache
#	Line 225 | Line 229 | static uintptr sig_stack = 0;                          // Stac
229		#else
230		static struct sigaction sigsegv_action;         // Data access exception signal (of emulator thread)
231		static struct sigaction sigill_action;          // Illegal instruction signal (of emulator thread)
232	<	static struct sigaltstack sig_stack;            // Stack for signal handlers
233	<	static struct sigaltstack extra_stack;          // Stack for SIGSEGV inside interrupt handler
232	>	static stack_t sig_stack;                                       // Stack for signal handlers
233	>	static stack_t extra_stack;                                     // Stack for SIGSEGV inside interrupt handler
234		static bool emul_thread_fatal = false;          // Flag: MacOS thread crashed, tick thread shall dump debug output
235		static sigregs sigsegv_regs;                            // Register dump when crashed
236		static const char *crash_reason = NULL;         // Reason of the crash (SIGSEGV, SIGBUS, SIGILL)
#	Line 253 | Line 257 | static void *tick_func(void *arg);
257		extern void emul_ppc(uint32 start);
258		extern void init_emul_ppc(void);
259		extern void exit_emul_ppc(void);
260	<	sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
260	>	sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip);
261		#else
262		extern "C" void sigusr2_handler_init(int sig, siginfo_t *sip, void *scp);
263		extern "C" void sigusr2_handler(int sig, siginfo_t *sip, void *scp);
#	Line 336 | Line 340 | int atomic_or(int *var, int v)
340		*  Memory management helpers
341		*/
342
343	<	static inline int vm_mac_acquire(uint32 addr, uint32 size)
343	>	static inline uint8 *vm_mac_acquire(uint32 size)
344	>	{
345	>	return (uint8 *)vm_acquire(size);
346	>	}
347	>
348	>	static inline int vm_mac_acquire_fixed(uint32 addr, uint32 size)
349		{
350		return vm_acquire_fixed(Mac2HostAddr(addr), size);
351		}
#	Line 360 | Line 369 | static void usage(const char *prg_name)
369		exit(0);
370		}
371
372	<	int main(int argc, char **argv)
372	>	static bool valid_vmdir(const char *path)
373		{
374	<	char str[256];
375	<	int rom_fd;
376	<	FILE *proc_file;
377	<	const char *rom_path;
378	<	uint32 rom_size, actual;
379	<	uint8 *rom_tmp;
380	<	time_t now, expire;
381	<
373	<	// Initialize variables
374	<	RAMBase = 0;
375	<	tzset();
376	<
377	<	// Print some info
378	<	printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR);
379	<	printf(" %s\n", GetString(STR_ABOUT_TEXT2));
380	<
381	<	#if !EMULATED_PPC
382	<	#ifdef SYSTEM_CLOBBERS_R2
383	<	// Get TOC pointer
384	<	TOC = get_r2();
385	<	#endif
386	<	#ifdef SYSTEM_CLOBBERS_R13
387	<	// Get r13 register
388	<	R13 = get_r13();
389	<	#endif
390	<	#endif
391	<
392	<	// Parse command line arguments
393	<	for (int i=1; i<argc; i++) {
394	<	if (strcmp(argv[i], "--help") == 0) {
395	<	usage(argv[0]);
396	<	#ifndef USE_SDL_VIDEO
397	<	} else if (strcmp(argv[i], "--display") == 0) {
398	<	i++;
399	<	if (i < argc)
400	<	x_display_name = strdup(argv[i]);
401	<	#endif
402	<	} else if (strcmp(argv[i], "--gui-connection") == 0) {
403	<	argv[i++] = NULL;
404	<	if (i < argc) {
405	<	gui_connection_path = argv[i];
406	<	argv[i] = NULL;
407	<	}
408	<	}
409	<	}
410	<
411	<	// Remove processed arguments
412	<	for (int i=1; i<argc; i++) {
413	<	int k;
414	<	for (k=i; k<argc; k++)
415	<	if (argv[k] != NULL)
416	<	break;
417	<	if (k > i) {
418	<	k -= i;
419	<	for (int j=i+k; j<argc; j++)
420	<	argv[j-k] = argv[j];
421	<	argc -= k;
374	>	const int suffix_len = sizeof(".sheepvm") - 1;
375	>	int len = strlen(path);
376	>	if (len && path[len - 1] == '/') // to support both ".sheepvm" and ".sheepvm/"
377	>	len--;
378	>	if (len > suffix_len && !strncmp(path + len - suffix_len, ".sheepvm", suffix_len)) {
379	>	struct stat d;
380	>	if (!stat(path, &d) && S_ISDIR(d.st_mode)) {
381	>	return true;
382		}
383		}
384	+	return false;
385	+	}
386
387	<	// Connect to the external GUI
388	<	if (gui_connection_path) {
427	<	if ((gui_connection = rpc_init_client(gui_connection_path)) == NULL) {
428	<	fprintf(stderr, "Failed to initialize RPC client connection to the GUI\n");
429	<	return 1;
430	<	}
431	<	}
432	<
433	<	#ifdef ENABLE_GTK
434	<	if (!gui_connection) {
435	<	// Init GTK
436	<	gtk_set_locale();
437	<	gtk_init(&argc, &argv);
438	<	}
439	<	#endif
440	<
441	<	// Read preferences
442	<	PrefsInit(argc, argv);
443	<
444	<	// Any command line arguments left?
445	<	for (int i=1; i<argc; i++) {
446	<	if (argv[i][0] == '-') {
447	<	fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
448	<	usage(argv[0]);
449	<	}
450	<	}
451	<
452	<	#ifdef USE_SDL
453	<	// Initialize SDL system
454	<	int sdl_flags = 0;
455	<	#ifdef USE_SDL_VIDEO
456	<	sdl_flags |= SDL_INIT_VIDEO;
457	<	#endif
458	<	#ifdef USE_SDL_AUDIO
459	<	sdl_flags |= SDL_INIT_AUDIO;
460	<	#endif
461	<	assert(sdl_flags != 0);
462	<	if (SDL_Init(sdl_flags) == -1) {
463	<	char str[256];
464	<	sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
465	<	ErrorAlert(str);
466	<	goto quit;
467	<	}
468	<	atexit(SDL_Quit);
469	<	#endif
470	<
471	<	#ifndef USE_SDL_VIDEO
472	<	// Open display
473	<	x_display = XOpenDisplay(x_display_name);
474	<	if (x_display == NULL) {
475	<	char str[256];
476	<	sprintf(str, GetString(STR_NO_XSERVER_ERR), XDisplayName(x_display_name));
477	<	ErrorAlert(str);
478	<	goto quit;
479	<	}
480	<
481	<	#if defined(ENABLE_XF86_DGA) && !defined(ENABLE_MON)
482	<	// Fork out, so we can return from fullscreen mode when things get ugly
483	<	XF86DGAForkApp(DefaultScreen(x_display));
484	<	#endif
485	<	#endif
486	<
487	<	#ifdef ENABLE_MON
488	<	// Initialize mon
489	<	mon_init();
490	<	#endif
491	<
492	<	#if !EMULATED_PPC
493	<	// Create and install stacks for signal handlers
494	<	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
495	<	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
496	<	if (sig_stack.ss_sp == NULL) {
497	<	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
498	<	goto quit;
499	<	}
500	<	sig_stack.ss_flags = 0;
501	<	sig_stack.ss_size = SIG_STACK_SIZE;
502	<	if (sigaltstack(&sig_stack, NULL) < 0) {
503	<	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
504	<	ErrorAlert(str);
505	<	goto quit;
506	<	}
507	<	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
508	<	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
509	<	if (extra_stack.ss_sp == NULL) {
510	<	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
511	<	goto quit;
512	<	}
513	<	extra_stack.ss_flags = 0;
514	<	extra_stack.ss_size = SIG_STACK_SIZE;
515	<	#endif
516	<
387	>	static void get_system_info(void)
388	>	{
389		#if !EMULATED_PPC
390	<	// Install SIGSEGV and SIGBUS handlers
519	<	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
520	<	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
521	<	sigsegv_action.sa_sigaction = sigsegv_handler;
522	<	sigsegv_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
523	<	#ifdef HAVE_SIGNAL_SA_RESTORER
524	<	sigsegv_action.sa_restorer = NULL;
525	<	#endif
526	<	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
527	<	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
528	<	ErrorAlert(str);
529	<	goto quit;
530	<	}
531	<	if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
532	<	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGBUS", strerror(errno));
533	<	ErrorAlert(str);
534	<	goto quit;
535	<	}
536	<	#else
537	<	// Install SIGSEGV handler for CPU emulator
538	<	if (!sigsegv_install_handler(sigsegv_handler)) {
539	<	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
540	<	ErrorAlert(str);
541	<	goto quit;
542	<	}
390	>	FILE *proc_file;
391		#endif
392
545	–	// Initialize VM system
546	–	vm_init();
547	–
548	–	// Get system info
393		PVR = 0x00040000;                       // Default: 604
394		CPUClockSpeed = 100000000;      // Default: 100MHz
395		BusClockSpeed = 100000000;      // Default: 100MHz
396		TimebaseSpeed =  25000000;      // Default:  25MHz
397	+
398		#if EMULATED_PPC
399		PVR = 0x000c0000;                       // Default: 7400 (with AltiVec)
400		#elif defined(__APPLE__) && defined(__MACH__)
#	Line 584 | Line 429 | int main(int argc, char **argv)
429		}
430		fclose(proc_file);
431		} else {
432	+	char str[256];
433		sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
434		WarningAlert(str);
435		}
#	Line 638 | Line 484 | int main(int argc, char **argv)
484		{ 0xffff0000, 0x00350000, "Power4" },
485		{ 0xffff0000, 0x00390000, "PPC970" },
486		{ 0xffff0000, 0x003c0000, "PPC970FX" },
487	+	{ 0xffff0000, 0x00440000, "PPC970MP" },
488		{ 0xffff0000, 0x003a0000, "POWER5 (gr)" },
489	<	{ 0xffff0000, 0x003b0000, "POWER5 (gs)" },
489	>	{ 0xffff0000, 0x003b0000, "POWER5+ (gs)" },
490	>	{ 0xffff0000, 0x003e0000, "POWER6" },
491	>	{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
492	>	{ 0x7fff0000, 0x00900000, "PA6T" },
493		{ 0, 0, 0 }
494		};
495
#	Line 653 | Line 503 | int main(int argc, char **argv)
503
504		// Parse line
505		int i;
506	+	float f;
507		char value[256];
508	<	if (sscanf(line, "cpu : %[0-9A-Za-a]", value) == 1) {
508	>	if (sscanf(line, "cpu : %[^,]", value) == 1) {
509		// Search by name
510		const char *cpu_name = NULL;
511		for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
#	Line 669 | Line 520 | int main(int argc, char **argv)
520		else
521		printf("Found a PowerPC %s processor\n", cpu_name);
522		}
523	<	if (sscanf(line, "clock : %dMHz", &i) == 1)
523	>	if (sscanf(line, "clock : %fMHz", &f) == 1)
524	>	CPUClockSpeed = BusClockSpeed = ((int64)f) * 1000000;
525	>	else if (sscanf(line, "clock : %dMHz", &i) == 1)
526		CPUClockSpeed = BusClockSpeed = i * 1000000;
527		}
528		fclose(proc_file);
#	Line 708 | Line 561 | int main(int argc, char **argv)
561		closedir(cpus_dir);
562		}
563		#endif
564	+
565		// Remap any newer G4/G5 processor to plain G4 for compatibility
566		switch (PVR >> 16) {
567		case 0x8000:                            // 7450
#	Line 717 | Line 571 | int main(int argc, char **argv)
571		case 0x8004:                            // 7448
572		case 0x0039:                            //  970
573		case 0x003c:                            //  970FX
574	+	case 0x0044:                            //  970MP
575		PVR = 0x000c0000;               // 7400
576		break;
577		}
578		D(bug("PVR: %08x (assumed)\n", PVR));
579	+	}
580	+
581	+	static bool load_mac_rom(void)
582	+	{
583	+	uint32 rom_size, actual;
584	+	uint8 *rom_tmp;
585	+	const char *rom_path = PrefsFindString("rom");
586	+	int rom_fd = open(rom_path && *rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
587	+	if (rom_fd < 0) {
588	+	rom_fd = open(ROM_FILE_NAME2, O_RDONLY);
589	+	if (rom_fd < 0) {
590	+	ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
591	+	return false;
592	+	}
593	+	}
594	+	printf("%s", GetString(STR_READING_ROM_FILE));
595	+	rom_size = lseek(rom_fd, 0, SEEK_END);
596	+	lseek(rom_fd, 0, SEEK_SET);
597	+	rom_tmp = new uint8[ROM_SIZE];
598	+	actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
599	+	close(rom_fd);
600	+
601	+	// Decode Mac ROM
602	+	if (!DecodeROM(rom_tmp, actual)) {
603	+	if (rom_size != 4*1024*1024) {
604	+	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
605	+	return false;
606	+	} else {
607	+	ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
608	+	return false;
609	+	}
610	+	}
611	+	delete[] rom_tmp;
612	+	return true;
613	+	}
614	+
615	+	static bool install_signal_handlers(void)
616	+	{
617	+	char str[256];
618	+	#if !EMULATED_PPC
619	+	// Create and install stacks for signal handlers
620	+	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
621	+	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
622	+	if (sig_stack.ss_sp == NULL) {
623	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
624	+	return false;
625	+	}
626	+	sig_stack.ss_flags = 0;
627	+	sig_stack.ss_size = SIG_STACK_SIZE;
628	+	if (sigaltstack(&sig_stack, NULL) < 0) {
629	+	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
630	+	ErrorAlert(str);
631	+	return false;
632	+	}
633	+	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
634	+	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
635	+	if (extra_stack.ss_sp == NULL) {
636	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
637	+	return false;
638	+	}
639	+	extra_stack.ss_flags = 0;
640	+	extra_stack.ss_size = SIG_STACK_SIZE;
641	+
642	+	// Install SIGSEGV and SIGBUS handlers
643	+	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
644	+	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
645	+	sigsegv_action.sa_sigaction = sigsegv_handler;
646	+	sigsegv_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
647	+	#ifdef HAVE_SIGNAL_SA_RESTORER
648	+	sigsegv_action.sa_restorer = NULL;
649	+	#endif
650	+	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
651	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
652	+	ErrorAlert(str);
653	+	return false;
654	+	}
655	+	if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
656	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGBUS", strerror(errno));
657	+	ErrorAlert(str);
658	+	return false;
659	+	}
660	+	#else
661	+	// Install SIGSEGV handler for CPU emulator
662	+	if (!sigsegv_install_handler(sigsegv_handler)) {
663	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
664	+	ErrorAlert(str);
665	+	return false;
666	+	}
667	+	#endif
668	+	return true;
669	+	}
670	+
671	+	static bool init_sdl()
672	+	{
673	+	int sdl_flags = 0;
674	+	#ifdef USE_SDL_VIDEO
675	+	sdl_flags |= SDL_INIT_VIDEO;
676	+	#endif
677	+	#ifdef USE_SDL_AUDIO
678	+	sdl_flags |= SDL_INIT_AUDIO;
679	+	#endif
680	+	assert(sdl_flags != 0);
681	+
682	+	#ifdef USE_SDL_VIDEO
683	+	// Don't let SDL block the screensaver
684	+	setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", TRUE);
685	+
686	+	// Make SDL pass through command-clicks and option-clicks unaltered
687	+	setenv("SDL_HAS3BUTTONMOUSE", "1", TRUE);
688	+	#endif
689	+
690	+	if (SDL_Init(sdl_flags) == -1) {
691	+	char str[256];
692	+	sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
693	+	ErrorAlert(str);
694	+	return false;
695	+	}
696	+	atexit(SDL_Quit);
697	+
698	+	// Don't let SDL catch SIGINT and SIGTERM signals
699	+	signal(SIGINT, SIG_DFL);
700	+	signal(SIGTERM, SIG_DFL);
701	+	return true;
702	+	}
703	+
704	+	int main(int argc, char **argv)
705	+	{
706	+	char str[256];
707	+	bool memory_mapped_from_zero, ram_rom_areas_contiguous;
708	+	const char *vmdir = NULL;
709	+
710	+	// Initialize variables
711	+	RAMBase = 0;
712	+	tzset();
713	+
714	+	// Print some info
715	+	printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR);
716	+	printf(" %s\n", GetString(STR_ABOUT_TEXT2));
717	+
718	+	#if !EMULATED_PPC
719	+	#ifdef SYSTEM_CLOBBERS_R2
720	+	// Get TOC pointer
721	+	TOC = get_r2();
722	+	#endif
723	+	#ifdef SYSTEM_CLOBBERS_R13
724	+	// Get r13 register
725	+	R13 = get_r13();
726	+	#endif
727	+	#endif
728	+
729	+	// Parse command line arguments
730	+	for (int i=1; i<argc; i++) {
731	+	if (strcmp(argv[i], "--help") == 0) {
732	+	usage(argv[0]);
733	+	#ifndef USE_SDL_VIDEO
734	+	} else if (strcmp(argv[i], "--display") == 0) {
735	+	i++;
736	+	if (i < argc)
737	+	x_display_name = strdup(argv[i]);
738	+	#endif
739	+	} else if (strcmp(argv[i], "--gui-connection") == 0) {
740	+	argv[i++] = NULL;
741	+	if (i < argc) {
742	+	gui_connection_path = argv[i];
743	+	argv[i] = NULL;
744	+	}
745	+	} else if (valid_vmdir(argv[i])) {
746	+	vmdir = argv[i];
747	+	argv[i] = NULL;
748	+	printf("Using %s as vmdir.\n", vmdir);
749	+	if (chdir(vmdir)) {
750	+	printf("Failed to chdir to %s. Good bye.", vmdir);
751	+	exit(1);
752	+	}
753	+	break;
754	+	}
755	+	}
756	+
757	+	// Remove processed arguments
758	+	for (int i=1; i<argc; i++) {
759	+	int k;
760	+	for (k=i; k<argc; k++)
761	+	if (argv[k] != NULL)
762	+	break;
763	+	if (k > i) {
764	+	k -= i;
765	+	for (int j=i+k; j<argc; j++)
766	+	argv[j-k] = argv[j];
767	+	argc -= k;
768	+	}
769	+	}
770	+
771	+	// Connect to the external GUI
772	+	if (gui_connection_path) {
773	+	if ((gui_connection = rpc_init_client(gui_connection_path)) == NULL) {
774	+	fprintf(stderr, "Failed to initialize RPC client connection to the GUI\n");
775	+	return 1;
776	+	}
777	+	}
778	+
779	+	#ifdef ENABLE_GTK
780	+	if (!gui_connection) {
781	+	// Init GTK
782	+	gtk_set_locale();
783	+	gtk_init(&argc, &argv);
784	+	}
785	+	#endif
786	+
787	+	// Read preferences
788	+	PrefsInit(vmdir, argc, argv);
789	+
790	+	// Any command line arguments left?
791	+	for (int i=1; i<argc; i++) {
792	+	if (argv[i][0] == '-') {
793	+	fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
794	+	usage(argv[0]);
795	+	}
796	+	}
797	+
798	+	#ifdef USE_SDL
799	+	// Initialize SDL system
800	+	if (!init_sdl())
801	+	goto quit;
802	+	#endif
803	+
804	+	#ifndef USE_SDL_VIDEO
805	+	// Open display
806	+	x_display = XOpenDisplay(x_display_name);
807	+	if (x_display == NULL) {
808	+	char str[256];
809	+	sprintf(str, GetString(STR_NO_XSERVER_ERR), XDisplayName(x_display_name));
810	+	ErrorAlert(str);
811	+	goto quit;
812	+	}
813	+
814	+	#if defined(ENABLE_XF86_DGA) && !defined(ENABLE_MON)
815	+	// Fork out, so we can return from fullscreen mode when things get ugly
816	+	XF86DGAForkApp(DefaultScreen(x_display));
817	+	#endif
818	+	#endif
819	+
820	+	#ifdef ENABLE_MON
821	+	// Initialize mon
822	+	mon_init();
823	+	#endif
824	+
825	+	// Install signal handlers
826	+	if (!install_signal_handlers())
827	+	goto quit;
828	+
829	+	// Initialize VM system
830	+	vm_init();
831	+
832	+	// Get system info
833	+	get_system_info();
834
835		// Init system routines
836		SysInit();
#	Line 743 | Line 853 | int main(int argc, char **argv)
853		goto quit;
854		}
855
746	–	#ifndef PAGEZERO_HACK
747	–	// Create Low Memory area (0x0000..0x3000)
748	–	if (vm_mac_acquire(0, 0x3000) < 0) {
749	–	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
750	–	ErrorAlert(str);
751	–	goto quit;
752	–	}
753	–	lm_area_mapped = true;
754	–	#endif
755	–
856		// Create areas for Kernel Data
857		if (!kernel_data_init())
858		goto quit;
#	Line 763 | Line 863 | int main(int argc, char **argv)
863		D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
864
865		// Create area for DR Cache
866	<	if (vm_mac_acquire(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
866	>	if (vm_mac_acquire_fixed(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
867		sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
868		ErrorAlert(str);
869		goto quit;
870		}
871		dr_emulator_area_mapped = true;
872	<	if (vm_mac_acquire(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
872	>	if (vm_mac_acquire_fixed(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
873		sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
874		ErrorAlert(str);
875		goto quit;
#	Line 791 | Line 891 | int main(int argc, char **argv)
891		ErrorAlert(str);
892		goto quit;
893		}
894	<
795	<	// Create area for Mac ROM
796	<	if (vm_mac_acquire(ROM_BASE, ROM_AREA_SIZE) < 0) {
797	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
798	<	ErrorAlert(str);
799	<	goto quit;
800	<	}
801	<	ROMBaseHost = Mac2HostAddr(ROM_BASE);
802	<	#if !EMULATED_PPC
803	<	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
804	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
805	<	ErrorAlert(str);
806	<	goto quit;
807	<	}
808	<	#endif
809	<	rom_area_mapped = true;
810	<	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROM_BASE));
811	<
894	>
895		// Create area for Mac RAM
896		RAMSize = PrefsFindInt32("ramsize");
897		if (RAMSize < 8*1024*1024) {
898		WarningAlert(GetString(STR_SMALL_RAM_WARN));
899		RAMSize = 8*1024*1024;
900		}
901	<
902	<	if (vm_mac_acquire(RAM_BASE, RAMSize) < 0) {
903	<	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
904	<	ErrorAlert(str);
905	<	goto quit;
901	>	memory_mapped_from_zero = false;
902	>	ram_rom_areas_contiguous = false;
903	>	#if REAL_ADDRESSING && HAVE_LINKER_SCRIPT
904	>	if (vm_mac_acquire_fixed(0, RAMSize) == 0) {
905	>	D(bug("Could allocate RAM from 0x0000\n"));
906	>	RAMBase = 0;
907	>	RAMBaseHost = Mac2HostAddr(RAMBase);
908	>	memory_mapped_from_zero = true;
909	>	}
910	>	#endif
911	>	if (!memory_mapped_from_zero) {
912	>	#ifndef PAGEZERO_HACK
913	>	// Create Low Memory area (0x0000..0x3000)
914	>	if (vm_mac_acquire_fixed(0, 0x3000) < 0) {
915	>	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
916	>	ErrorAlert(str);
917	>	goto quit;
918	>	}
919	>	lm_area_mapped = true;
920	>	#endif
921	>	#if REAL_ADDRESSING
922	>	// Allocate RAM at any address. Since ROM must be higher than RAM, allocate the RAM
923	>	// and ROM areas contiguously, plus a little extra to allow for ROM address alignment.
924	>	RAMBaseHost = vm_mac_acquire(RAMSize + ROM_AREA_SIZE + ROM_ALIGNMENT);
925	>	if (RAMBaseHost == VM_MAP_FAILED) {
926	>	sprintf(str, GetString(STR_RAM_ROM_MMAP_ERR), strerror(errno));
927	>	ErrorAlert(str);
928	>	goto quit;
929	>	}
930	>	RAMBase = Host2MacAddr(RAMBaseHost);
931	>	ROMBase = (RAMBase + RAMSize + ROM_ALIGNMENT -1) & -ROM_ALIGNMENT;
932	>	ROMBaseHost = Mac2HostAddr(ROMBase);
933	>	ram_rom_areas_contiguous = true;
934	>	#else
935	>	if (vm_mac_acquire_fixed(RAM_BASE, RAMSize) < 0) {
936	>	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
937	>	ErrorAlert(str);
938	>	goto quit;
939	>	}
940	>	RAMBase = RAM_BASE;
941	>	RAMBaseHost = Mac2HostAddr(RAMBase);
942	>	#endif
943		}
824	–	RAMBaseHost = Mac2HostAddr(RAM_BASE);
944		#if !EMULATED_PPC
945		if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
946		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
#	Line 829 | Line 948 | int main(int argc, char **argv)
948		goto quit;
949		}
950		#endif
832	–	RAMBase = RAM_BASE;
951		ram_area_mapped = true;
952		D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
953
954	<	if (RAMBase > ROM_BASE) {
955	<	ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
954	>	if (RAMBase > KernelDataAddr) {
955	>	ErrorAlert(GetString(STR_RAM_AREA_TOO_HIGH_ERR));
956		goto quit;
957		}
840	–
841	–	// Load Mac ROM
842	–	rom_path = PrefsFindString("rom");
843	–	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
844	–	if (rom_fd < 0) {
845	–	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME2, O_RDONLY);
846	–	if (rom_fd < 0) {
847	–	ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
848	–	goto quit;
849	–	}
850	–	}
851	–	printf(GetString(STR_READING_ROM_FILE));
852	–	rom_size = lseek(rom_fd, 0, SEEK_END);
853	–	lseek(rom_fd, 0, SEEK_SET);
854	–	rom_tmp = new uint8[ROM_SIZE];
855	–	actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
856	–	close(rom_fd);
958
959	<	// Decode Mac ROM
960	<	if (!DecodeROM(rom_tmp, actual)) {
961	<	if (rom_size != 4*1024*1024) {
962	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
963	<	goto quit;
863	<	} else {
864	<	ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
959	>	// Create area for Mac ROM
960	>	if (!ram_rom_areas_contiguous) {
961	>	if (vm_mac_acquire_fixed(ROM_BASE, ROM_AREA_SIZE) < 0) {
962	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
963	>	ErrorAlert(str);
964		goto quit;
965		}
966	+	ROMBase = ROM_BASE;
967	+	ROMBaseHost = Mac2HostAddr(ROMBase);
968		}
969	<	delete[] rom_tmp;
969	>	#if !EMULATED_PPC
970	>	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
971	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
972	>	ErrorAlert(str);
973	>	goto quit;
974	>	}
975	>	#endif
976	>	rom_area_mapped = true;
977	>	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROMBase));
978	>
979	>	if (RAMBase > ROMBase) {
980	>	ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
981	>	goto quit;
982	>	}
983	>
984	>	// Load Mac ROM
985	>	if (!load_mac_rom())
986	>	goto quit;
987
988		// Initialize everything
989	<	if (!InitAll())
989	>	if (!InitAll(vmdir))
990		goto quit;
991		D(bug("Initialization complete\n"));
992
993		// Clear caches (as we loaded and patched code) and write protect ROM
994		#if !EMULATED_PPC
995	<	flush_icache_range(ROM_BASE, ROM_BASE + ROM_AREA_SIZE);
995	>	flush_icache_range(ROMBase, ROMBase + ROM_AREA_SIZE);
996		#endif
997		vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
998
#	Line 985 | Line 1103 | static void Quit(void)
1103
1104		// Delete RAM area
1105		if (ram_area_mapped)
1106	<	vm_mac_release(RAM_BASE, RAMSize);
1106	>	vm_mac_release(RAMBase, RAMSize);
1107
1108		// Delete ROM area
1109		if (rom_area_mapped)
1110	<	vm_mac_release(ROM_BASE, ROM_AREA_SIZE);
1110	>	vm_mac_release(ROMBase, ROM_AREA_SIZE);
1111
1112		// Delete DR cache areas
1113		if (dr_emulator_area_mapped)
#	Line 1108 | Line 1226 | static void *emul_func(void *arg)
1226		// Jump to ROM boot routine
1227		D(bug("Jumping to ROM\n"));
1228		#if EMULATED_PPC
1229	<	jump_to_rom(ROM_BASE + 0x310000);
1229	>	jump_to_rom(ROMBase + 0x310000);
1230		#else
1231	<	jump_to_rom(ROM_BASE + 0x310000, (uint32)emulator_data);
1231	>	jump_to_rom(ROMBase + 0x310000, (uint32)emulator_data);
1232		#endif
1233		D(bug("Returned from ROM\n"));
1234
#	Line 1196 | Line 1314 | void Dump68kRegs(M68kRegisters *r)
1314
1315		void MakeExecutable(int dummy, uint32 start, uint32 length)
1316		{
1317	<	if ((start >= ROM_BASE) && (start < (ROM_BASE + ROM_SIZE)))
1317	>	if ((start >= ROMBase) && (start < (ROMBase + ROM_SIZE)))
1318		return;
1319		#if EMULATED_PPC
1320		FlushCodeCache(start, start + length);
#	Line 1539 | Line 1657 | void sigusr2_handler(int sig, siginfo_t
1657		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1658		DisableInterrupt();
1659		if (ROMType == ROMTYPE_NEWWORLD)
1660	<	ppc_interrupt(ROM_BASE + 0x312b1c, KernelDataAddr);
1660	>	ppc_interrupt(ROMBase + 0x312b1c, KernelDataAddr);
1661		else
1662	<	ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1662	>	ppc_interrupt(ROMBase + 0x312a3c, KernelDataAddr);
1663
1664		// Reset normal stack
1665		sigaltstack(&sig_stack, NULL);
#	Line 1613 | Line 1731 | static void sigsegv_handler(int sig, sig
1731		#endif
1732
1733		#if ENABLE_VOSF
1734	<	// Handle screen fault.
1735	<	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
1736	<	if (Screen_fault_handler((sigsegv_address_t)addr, (sigsegv_address_t)r->pc()))
1734	>	// Handle screen fault
1735	>	#if SIGSEGV_CHECK_VERSION(1,0,0)
1736	>	sigsegv_info_t si;
1737	>	si.addr = (sigsegv_address_t)addr;
1738	>	si.pc = (sigsegv_address_t)r->pc();
1739	>	#endif
1740	>	extern bool Screen_fault_handler(sigsegv_info_t *sip);
1741	>	if (Screen_fault_handler(&si))
1742		return;
1743		#endif
1744
1745		num_segv++;
1746
1747		// Fault in Mac ROM or RAM or DR Cache?
1748	<	bool mac_fault = (r->pc() >= ROM_BASE) && (r->pc() < (ROM_BASE + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize)) || (r->pc() >= DR_CACHE_BASE && r->pc() < (DR_CACHE_BASE + DR_CACHE_SIZE));
1748	>	bool mac_fault = (r->pc() >= ROMBase) && (r->pc() < (ROMBase + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize)) || (r->pc() >= DR_CACHE_BASE && r->pc() < (DR_CACHE_BASE + DR_CACHE_SIZE));
1749		if (mac_fault) {
1750
1751		// "VM settings" during MacOS 8 installation
1752	<	if (r->pc() == ROM_BASE + 0x488160 && r->gpr(20) == 0xf8000000) {
1752	>	if (r->pc() == ROMBase + 0x488160 && r->gpr(20) == 0xf8000000) {
1753		r->pc() += 4;
1754		r->gpr(8) = 0;
1755		return;
1756
1757		// MacOS 8.5 installation
1758	<	} else if (r->pc() == ROM_BASE + 0x488140 && r->gpr(16) == 0xf8000000) {
1758	>	} else if (r->pc() == ROMBase + 0x488140 && r->gpr(16) == 0xf8000000) {
1759		r->pc() += 4;
1760		r->gpr(8) = 0;
1761		return;
1762
1763		// MacOS 8 serial drivers on startup
1764	<	} else if (r->pc() == ROM_BASE + 0x48e080 && (r->gpr(8) == 0xf3012002 || r->gpr(8) == 0xf3012000)) {
1764	>	} else if (r->pc() == ROMBase + 0x48e080 && (r->gpr(8) == 0xf3012002 || r->gpr(8) == 0xf3012000)) {
1765		r->pc() += 4;
1766		r->gpr(8) = 0;
1767		return;
1768
1769		// MacOS 8.1 serial drivers on startup
1770	<	} else if (r->pc() == ROM_BASE + 0x48c5e0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1770	>	} else if (r->pc() == ROMBase + 0x48c5e0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1771		r->pc() += 4;
1772		return;
1773	<	} else if (r->pc() == ROM_BASE + 0x4a10a0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1773	>	} else if (r->pc() == ROMBase + 0x4a10a0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1774		r->pc() += 4;
1775		return;
1776
#	Line 1780 | Line 1903 | static void sigsegv_handler(int sig, sig
1903
1904		// Ignore ROM writes (including to the zero page, which is read-only)
1905		if (transfer_type == TYPE_STORE &&
1906	<	((addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) ||
1906	>	((addr >= ROMBase && addr < ROMBase + ROM_SIZE) ||
1907		(addr >= SheepMem::ZeroPage() && addr < SheepMem::ZeroPage() + SheepMem::PageSize()))) {
1908		//                      D(bug("WARNING: %s write access to ROM at %08lx, pc %08lx\n", transfer_size == SIZE_BYTE ? "Byte" : transfer_size == SIZE_HALFWORD ? "Halfword" : "Word", addr, r->pc()));
1909		if (addr_mode == MODE_U || addr_mode == MODE_UX)
#	Line 1871 | Line 1994 | static void sigill_handler(int sig, sigi
1994		#endif
1995
1996		// Fault in Mac ROM or RAM?
1997	<	bool mac_fault = (r->pc() >= ROM_BASE) && (r->pc() < (ROM_BASE + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
1997	>	bool mac_fault = (r->pc() >= ROMBase) && (r->pc() < (ROMBase + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
1998		if (mac_fault) {
1999
2000		// Get opcode and divide into fields
#	Line 2039 | Line 2162 | bool SheepMem::Init(void)
2162
2163		// Allocate SheepShaver globals
2164		proc = base;
2165	<	if (vm_mac_acquire(base, size) < 0)
2165	>	if (vm_mac_acquire_fixed(base, size) < 0)
2166		return false;
2167
2168		// Allocate page with all bits set to 0, right in the middle
#	Line 2052 | Line 2175 | bool SheepMem::Init(void)
2175		#if EMULATED_PPC
2176		// Allocate alternate stack for PowerPC interrupt routine
2177		sig_stack = base + size;
2178	<	if (vm_mac_acquire(sig_stack, SIG_STACK_SIZE) < 0)
2178	>	if (vm_mac_acquire_fixed(sig_stack, SIG_STACK_SIZE) < 0)
2179		return false;
2180		#endif
2181

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