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

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.52 by gbeauche, 2004-11-13T14:09:15Z vs.
Revision 1.101 by asvitkine, 2012-01-01T19:11:31Z

#	Line 1 | Line 1
1		/*
2		*  main_unix.cpp - Emulation core, Unix implementation
3		*
4	<	*  SheepShaver (C) 1997-2004 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 27 | Line 27
27		*  is slightly different from the SysV ABI used by Linux:
28		*    - Stack frames are different (e.g. LR is stored in 8(r1) under
29		*      MacOS, but in 4(r1) under Linux)
30	<	*    - There is no TOC under Linux; r2 is free for the user
30	>	*    - There is a pointer to Thread Local Storage (TLS) under Linux with
31	>	*      recent enough glibc. This is r2 in 32-bit mode and r13 in
32	>	*      64-bit mode (PowerOpen/AIX ABI)
33		*    - r13 is used as a small data pointer under Linux (but appearently
34		*      it is not used this way? To be sure, we specify -msdata=none
35		*      in the Makefile)
36	<	*    - As there is no TOC, there are also no TVECTs under Linux;
37	<	*      function pointers point directly to the function code
36	>	*    - There are no TVECTs under Linux; function pointers point
37	>	*      directly to the function code
38		*  The Execute*() functions have to account for this. Additionally, we
39		*  cannot simply call MacOS functions by getting their TVECT and jumping
40		*  to it. Such calls are done via the call_macos*() functions in
#	Line 65 | Line 67
67		*  ExecutePPC (or any function that might cause a mode switch). The signal
68		*  stack is restored before exiting the SIGUSR2 handler.
69		*
70	<	*  There is apparently another problem when processing signals. In
71	<	*  fullscreen mode, we get quick updates of the mouse position. This
72	<	*  causes an increased number of calls to TriggerInterrupt(). And,
73	<	*  since IRQ_NEST is not fully handled atomically, nested calls to
74	<	*  ppc_interrupt() may cause stack corruption to eventually crash the
75	<	*  emulator.
74	<	*
75	<	*  FIXME:
76	<	*  The current solution is to allocate another signal stack when
77	<	*  processing ppc_interrupt(). However, it may be better to detect
78	<	*  the INTFLAG_ADB case and handle it specifically with some extra mutex?
70	>	*  Note that POSIX standard says you can't modify the alternate
71	>	*  signal stack while the process is executing on it. There is a
72	>	*  hackaround though: we install a trampoline SIGUSR2 handler that
73	>	*  sets up an alternate stack itself and calls the real handler.
74	>	*  Then, when we call sigaltstack() there, we no longer get an EPERM,
75	>	*  i.e. it now works.
76		*
77		*  TODO:
78		*    check if SIGSEGV handler works for all registers (including FP!)
#	Line 92 | 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 105 | Line 103
103		#include "xpram.h"
104		#include "timer.h"
105		#include "adb.h"
108	–	#include "sony.h"
109	–	#include "disk.h"
110	–	#include "cdrom.h"
111	–	#include "scsi.h"
106		#include "video.h"
113	–	#include "audio.h"
114	–	#include "ether.h"
115	–	#include "serial.h"
116	–	#include "clip.h"
117	–	#include "extfs.h"
107		#include "sys.h"
108		#include "macos_util.h"
109		#include "rom_patches.h"
110		#include "user_strings.h"
111		#include "vm_alloc.h"
112		#include "sigsegv.h"
113	<	#include "thunks.h"
113	>	#include "sigregs.h"
114	>	#include "rpc.h"
115
116		#define DEBUG 0
117		#include "debug.h"
#	Line 146 | 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 166 | Line 156
156		// Interrupts in native mode?
157		#define INTERRUPTS_IN_NATIVE_MODE 1
158
169	–	// Number of alternate stacks for signal handlers?
170	–	#define SIG_STACK_COUNT 4
171	–
159
160		// Constants
161		const char ROM_FILE_NAME[] = "ROM";
162		const char ROM_FILE_NAME2[] = "Mac OS ROM";
163
164	<	#if REAL_ADDRESSING
178	<	const uintptr RAM_BASE = 0x20000000;            // Base address of RAM
179	<	#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 uint32 SIG_STACK_SIZE = 0x10000;          // Size of signal stack
169	<
170	<
186	<	#if !EMULATED_PPC
187	<	struct sigregs {
188	<	uint32 nip;
189	<	uint32 link;
190	<	uint32 ctr;
191	<	uint32 msr;
192	<	uint32 xer;
193	<	uint32 ccr;
194	<	uint32 gpr[32];
195	<	};
196	<
197	<	#if defined(__linux__)
198	<	#include <sys/ucontext.h>
199	<	#define MACHINE_REGISTERS(scp)  ((machine_regs *)(((ucontext_t *)scp)->uc_mcontext.regs))
200	<
201	<	struct machine_regs : public pt_regs
202	<	{
203	<	u_long & cr()                           { return pt_regs::ccr; }
204	<	uint32 cr() const                       { return pt_regs::ccr; }
205	<	uint32 lr() const                       { return pt_regs::link; }
206	<	uint32 ctr() const                      { return pt_regs::ctr; }
207	<	uint32 xer() const                      { return pt_regs::xer; }
208	<	uint32 msr() const                      { return pt_regs::msr; }
209	<	uint32 dar() const                      { return pt_regs::dar; }
210	<	u_long & pc()                           { return pt_regs::nip; }
211	<	uint32 pc() const                       { return pt_regs::nip; }
212	<	u_long & gpr(int i)                     { return pt_regs::gpr[i]; }
213	<	uint32 gpr(int i) const         { return pt_regs::gpr[i]; }
214	<	};
215	<	#endif
216	<
217	<	#if defined(__APPLE__) && defined(__MACH__)
218	<	#include <sys/signal.h>
219	<	extern "C" int sigaltstack(const struct sigaltstack *ss, struct sigaltstack *oss);
220	<
221	<	#include <sys/ucontext.h>
222	<	#define MACHINE_REGISTERS(scp)  ((machine_regs *)(((ucontext_t *)scp)->uc_mcontext))
223	<
224	<	struct machine_regs : public mcontext
225	<	{
226	<	uint32 & cr()                           { return ss.cr; }
227	<	uint32 cr() const                       { return ss.cr; }
228	<	uint32 lr() const                       { return ss.lr; }
229	<	uint32 ctr() const                      { return ss.ctr; }
230	<	uint32 xer() const                      { return ss.xer; }
231	<	uint32 msr() const                      { return ss.srr1; }
232	<	uint32 dar() const                      { return es.dar; }
233	<	uint32 & pc()                           { return ss.srr0; }
234	<	uint32 pc() const                       { return ss.srr0; }
235	<	uint32 & gpr(int i)                     { return (&ss.r0)[i]; }
236	<	uint32 gpr(int i) const         { return (&ss.r0)[i]; }
237	<	};
238	<	#endif
239	<
240	<	static void build_sigregs(sigregs *srp, machine_regs *mrp)
241	<	{
242	<	srp->nip = mrp->pc();
243	<	srp->link = mrp->lr();
244	<	srp->ctr = mrp->ctr();
245	<	srp->msr = mrp->msr();
246	<	srp->xer = mrp->xer();
247	<	srp->ccr = mrp->cr();
248	<	for (int i = 0; i < 32; i++)
249	<	srp->gpr[i] = mrp->gpr(i);
250	<	}
251	<
252	<	static struct sigaltstack sig_stacks[SIG_STACK_COUNT];  // Stacks for signal handlers
253	<	static int sig_stack_id = 0;                                                    // Stack slot currently used
254	<
255	<	static inline void sig_stack_acquire(void)
256	<	{
257	<	if (++sig_stack_id == SIG_STACK_COUNT) {
258	<	printf("FATAL: signal stack overflow\n");
259	<	return;
260	<	}
261	<	sigaltstack(&sig_stacks[sig_stack_id], NULL);
262	<	}
263	<
264	<	static inline void sig_stack_release(void)
265	<	{
266	<	if (--sig_stack_id < 0) {
267	<	printf("FATAL: signal stack underflow\n");
268	<	return;
269	<	}
270	<	sigaltstack(&sig_stacks[sig_stack_id], NULL);
271	<	}
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
175		// Global variables (exported)
176		#if !EMULATED_PPC
177	<	void *TOC;                              // Small data pointer (r13)
177	>	void *TOC = NULL;               // Pointer to Thread Local Storage (r2)
178	>	void *R13 = NULL;               // Pointer to .sdata section (r13 under Linux)
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 327 | 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 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)
237		#endif
238
239	+	static rpc_connection_t *gui_connection = NULL; // RPC connection to the GUI
240	+	static const char *gui_connection_path = NULL;  // GUI connection identifier
241	+
242		uint32  SheepMem::page_size;                            // Size of a native page
243		uintptr SheepMem::zero_page = 0;                        // Address of ro page filled in with zeros
244		uintptr SheepMem::base = 0x60000000;            // Address of SheepShaver data
245	<	uintptr SheepMem::top = 0;                                      // Top of SheepShaver data (stack like storage)
245	>	uintptr SheepMem::proc;                                         // Bottom address of SheepShave procedures
246	>	uintptr SheepMem::data;                                         // Top of SheepShaver data (stack like storage)
247
248
249		// Prototypes
250	+	static bool kernel_data_init(void);
251	+	static void kernel_data_exit(void);
252		static void Quit(void);
253		static void *emul_func(void *arg);
254		static void *nvram_func(void *arg);
#	Line 347 | 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	<	static void sigusr2_handler(int sig, siginfo_t *sip, void *scp);
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);
264		static void sigsegv_handler(int sig, siginfo_t *sip, void *scp);
265		static void sigill_handler(int sig, siginfo_t *sip, void *scp);
266		#endif
#	Line 357 | Line 268 | static void sigill_handler(int sig, sigi
268
269		// From asm_linux.S
270		#if !EMULATED_PPC
360	–	extern "C" void *get_toc(void);
271		extern "C" void *get_sp(void);
272	<	extern "C" void flush_icache_range(void *start, void *end);
272	>	extern "C" void *get_r2(void);
273	>	extern "C" void set_r2(void *);
274	>	extern "C" void *get_r13(void);
275	>	extern "C" void set_r13(void *);
276	>	extern "C" void flush_icache_range(uint32 start, uint32 end);
277		extern "C" void jump_to_rom(uint32 entry, uint32 context);
278		extern "C" void quit_emulator(void);
279		extern "C" void execute_68k(uint32 pc, M68kRegisters *r);
#	Line 423 | Line 337 | int atomic_or(int *var, int v)
337
338
339		/*
340	+	*  Memory management helpers
341	+	*/
342	+
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	+	}
352	+
353	+	static inline int vm_mac_release(uint32 addr, uint32 size)
354	+	{
355	+	return vm_release(Mac2HostAddr(addr), size);
356	+	}
357	+
358	+
359	+	/*
360		*  Main program
361		*/
362
#	Line 435 | 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	<	int16 i16;
376	<	int rom_fd;
377	<	FILE *proc_file;
378	<	const char *rom_path;
379	<	uint32 rom_size, actual;
380	<	uint8 *rom_tmp;
381	<	time_t now, expire;
448	<
449	<	// Initialize variables
450	<	RAMBase = 0;
451	<	tzset();
452	<
453	<	// Print some info
454	<	printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR);
455	<	printf(" %s\n", GetString(STR_ABOUT_TEXT2));
456	<
457	<	#if !EMULATED_PPC
458	<	// Get TOC pointer
459	<	TOC = get_toc();
460	<	#endif
461	<
462	<	#ifdef ENABLE_GTK
463	<	// Init GTK
464	<	gtk_set_locale();
465	<	gtk_init(&argc, &argv);
466	<	#endif
467	<
468	<	// Read preferences
469	<	PrefsInit(argc, argv);
470	<
471	<	// Parse command line arguments
472	<	for (int i=1; i<argc; i++) {
473	<	if (strcmp(argv[i], "--help") == 0) {
474	<	usage(argv[0]);
475	<	#ifndef USE_SDL_VIDEO
476	<	} else if (strcmp(argv[i], "--display") == 0) {
477	<	i++;
478	<	if (i < argc)
479	<	x_display_name = strdup(argv[i]);
480	<	#endif
481	<	} else if (argv[i][0] == '-') {
482	<	fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
483	<	usage(argv[0]);
484	<	}
485	<	}
486	<
487	<	#ifdef USE_SDL
488	<	// Initialize SDL system
489	<	int sdl_flags = 0;
490	<	#ifdef USE_SDL_VIDEO
491	<	sdl_flags |= SDL_INIT_VIDEO;
492	<	#endif
493	<	#ifdef USE_SDL_AUDIO
494	<	sdl_flags |= SDL_INIT_AUDIO;
495	<	#endif
496	<	assert(sdl_flags != 0);
497	<	if (SDL_Init(sdl_flags) == -1) {
498	<	char str[256];
499	<	sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
500	<	ErrorAlert(str);
501	<	goto quit;
502	<	}
503	<	atexit(SDL_Quit);
504	<	#endif
505	<
506	<	#ifndef USE_SDL_VIDEO
507	<	// Open display
508	<	x_display = XOpenDisplay(x_display_name);
509	<	if (x_display == NULL) {
510	<	char str[256];
511	<	sprintf(str, GetString(STR_NO_XSERVER_ERR), XDisplayName(x_display_name));
512	<	ErrorAlert(str);
513	<	goto quit;
514	<	}
515	<
516	<	#if defined(ENABLE_XF86_DGA) && !defined(ENABLE_MON)
517	<	// Fork out, so we can return from fullscreen mode when things get ugly
518	<	XF86DGAForkApp(DefaultScreen(x_display));
519	<	#endif
520	<	#endif
521	<
522	<	#ifdef ENABLE_MON
523	<	// Initialize mon
524	<	mon_init();
525	<	#endif
526	<
527	<	#if !EMULATED_PPC
528	<	// Create and install stacks for signal handlers
529	<	for (int i = 0; i < SIG_STACK_COUNT; i++) {
530	<	void *sig_stack = malloc(SIG_STACK_SIZE);
531	<	D(bug("Signal stack %d at %p\n", i, sig_stack));
532	<	if (sig_stack == NULL) {
533	<	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
534	<	goto quit;
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		}
536	–	sig_stacks[i].ss_sp = sig_stack;
537	–	sig_stacks[i].ss_flags = 0;
538	–	sig_stacks[i].ss_size = SIG_STACK_SIZE;
539	–	}
540	–	sig_stack_id = 0;
541	–	if (sigaltstack(&sig_stacks[0], NULL) < 0) {
542	–	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
543	–	ErrorAlert(str);
544	–	goto quit;
383		}
384	<	#endif
384	>	return false;
385	>	}
386
387	+	static void get_system_info(void)
388	+	{
389		#if !EMULATED_PPC
390	<	// Install SIGSEGV and SIGBUS handlers
550	<	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
551	<	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
552	<	sigsegv_action.sa_sigaction = sigsegv_handler;
553	<	sigsegv_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
554	<	#ifdef HAVE_SIGNAL_SA_RESTORER
555	<	sigsegv_action.sa_restorer = NULL;
556	<	#endif
557	<	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
558	<	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
559	<	ErrorAlert(str);
560	<	goto quit;
561	<	}
562	<	if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
563	<	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
564	<	ErrorAlert(str);
565	<	goto quit;
566	<	}
567	<	#else
568	<	// Install SIGSEGV handler for CPU emulator
569	<	if (!sigsegv_install_handler(sigsegv_handler)) {
570	<	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
571	<	ErrorAlert(str);
572	<	goto quit;
573	<	}
390	>	FILE *proc_file;
391		#endif
392
576	–	// Initialize VM system
577	–	vm_init();
578	–
579	–	// 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 615 | 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 659 | Line 474 | int main(int argc, char **argv)
474		{ 0xffff0000, 0x80010000, "7455" },
475		{ 0xffff0000, 0x80020000, "7457" },
476		{ 0xffff0000, 0x80030000, "7447A" },
477	+	{ 0xffff0000, 0x80040000, "7448" },
478		{ 0x7fff0000, 0x00810000, "82xx" },
479		{ 0x7fff0000, 0x00820000, "8280" },
480		{ 0xffff0000, 0x00400000, "Power3 (630)" },
#	Line 667 | Line 483 | int main(int argc, char **argv)
483		{ 0xffff0000, 0x00370000, "S-star" },
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)" },
490	+	{ 0xffff0000, 0x003e0000, "POWER6" },
491	+	{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
492	+	{ 0x7fff0000, 0x00900000, "PA6T" },
493		{ 0, 0, 0 }
494		};
495
#	Line 680 | 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 696 | 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);
529		} else {
530	+	char str[256];
531		sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
532		WarningAlert(str);
533		}
#	Line 735 | Line 562 | int main(int argc, char **argv)
562		closedir(cpus_dir);
563		}
564		#endif
565	+
566		// Remap any newer G4/G5 processor to plain G4 for compatibility
567		switch (PVR >> 16) {
568		case 0x8000:                            // 7450
569		case 0x8001:                            // 7455
570		case 0x8002:                            // 7457
571	+	case 0x8003:                            // 7447A
572	+	case 0x8004:                            // 7448
573		case 0x0039:                            //  970
574	+	case 0x003c:                            //  970FX
575	+	case 0x0044:                            //  970MP
576		PVR = 0x000c0000;               // 7400
577		break;
578		}
579		D(bug("PVR: %08x (assumed)\n", PVR));
580	+	}
581	+
582	+	static bool load_mac_rom(void)
583	+	{
584	+	uint32 rom_size, actual;
585	+	uint8 *rom_tmp;
586	+	const char *rom_path = PrefsFindString("rom");
587	+	int rom_fd = open(rom_path && *rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
588	+	if (rom_fd < 0) {
589	+	rom_fd = open(ROM_FILE_NAME2, O_RDONLY);
590	+	if (rom_fd < 0) {
591	+	ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
592	+	return false;
593	+	}
594	+	}
595	+	printf("%s", GetString(STR_READING_ROM_FILE));
596	+	rom_size = lseek(rom_fd, 0, SEEK_END);
597	+	lseek(rom_fd, 0, SEEK_SET);
598	+	rom_tmp = new uint8[ROM_SIZE];
599	+	actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
600	+	close(rom_fd);
601	+
602	+	// Decode Mac ROM
603	+	if (!DecodeROM(rom_tmp, actual)) {
604	+	if (rom_size != 4*1024*1024) {
605	+	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
606	+	return false;
607	+	} else {
608	+	ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
609	+	return false;
610	+	}
611	+	}
612	+	delete[] rom_tmp;
613	+	return true;
614	+	}
615	+
616	+	static bool install_signal_handlers(void)
617	+	{
618	+	char str[256];
619	+	#if !EMULATED_PPC
620	+	// Create and install stacks for signal handlers
621	+	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
622	+	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
623	+	if (sig_stack.ss_sp == NULL) {
624	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
625	+	return false;
626	+	}
627	+	sig_stack.ss_flags = 0;
628	+	sig_stack.ss_size = SIG_STACK_SIZE;
629	+	if (sigaltstack(&sig_stack, NULL) < 0) {
630	+	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
631	+	ErrorAlert(str);
632	+	return false;
633	+	}
634	+	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
635	+	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
636	+	if (extra_stack.ss_sp == NULL) {
637	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
638	+	return false;
639	+	}
640	+	extra_stack.ss_flags = 0;
641	+	extra_stack.ss_size = SIG_STACK_SIZE;
642	+
643	+	// Install SIGSEGV and SIGBUS handlers
644	+	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
645	+	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
646	+	sigsegv_action.sa_sigaction = sigsegv_handler;
647	+	sigsegv_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
648	+	#ifdef HAVE_SIGNAL_SA_RESTORER
649	+	sigsegv_action.sa_restorer = NULL;
650	+	#endif
651	+	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
652	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
653	+	ErrorAlert(str);
654	+	return false;
655	+	}
656	+	if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
657	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGBUS", strerror(errno));
658	+	ErrorAlert(str);
659	+	return false;
660	+	}
661	+	#else
662	+	// Install SIGSEGV handler for CPU emulator
663	+	if (!sigsegv_install_handler(sigsegv_handler)) {
664	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
665	+	ErrorAlert(str);
666	+	return false;
667	+	}
668	+	#endif
669	+	return true;
670	+	}
671	+
672	+	#ifdef USE_SDL
673	+	static bool init_sdl()
674	+	{
675	+	int sdl_flags = 0;
676	+	#ifdef USE_SDL_VIDEO
677	+	sdl_flags |= SDL_INIT_VIDEO;
678	+	#endif
679	+	#ifdef USE_SDL_AUDIO
680	+	sdl_flags |= SDL_INIT_AUDIO;
681	+	#endif
682	+	assert(sdl_flags != 0);
683	+
684	+	#ifdef USE_SDL_VIDEO
685	+	// Don't let SDL block the screensaver
686	+	setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", TRUE);
687	+
688	+	// Make SDL pass through command-clicks and option-clicks unaltered
689	+	setenv("SDL_HAS3BUTTONMOUSE", "1", TRUE);
690	+	#endif
691	+
692	+	if (SDL_Init(sdl_flags) == -1) {
693	+	char str[256];
694	+	sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
695	+	ErrorAlert(str);
696	+	return false;
697	+	}
698	+	atexit(SDL_Quit);
699	+
700	+	// Don't let SDL catch SIGINT and SIGTERM signals
701	+	signal(SIGINT, SIG_DFL);
702	+	signal(SIGTERM, SIG_DFL);
703	+	return true;
704	+	}
705	+	#endif
706	+
707	+	int main(int argc, char **argv)
708	+	{
709	+	char str[256];
710	+	bool memory_mapped_from_zero, ram_rom_areas_contiguous;
711	+	const char *vmdir = NULL;
712	+
713	+	// Initialize variables
714	+	RAMBase = 0;
715	+	tzset();
716	+
717	+	// Print some info
718	+	printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR);
719	+	printf(" %s\n", GetString(STR_ABOUT_TEXT2));
720	+
721	+	#if !EMULATED_PPC
722	+	#ifdef SYSTEM_CLOBBERS_R2
723	+	// Get TOC pointer
724	+	TOC = get_r2();
725	+	#endif
726	+	#ifdef SYSTEM_CLOBBERS_R13
727	+	// Get r13 register
728	+	R13 = get_r13();
729	+	#endif
730	+	#endif
731	+
732	+	// Parse command line arguments
733	+	for (int i=1; i<argc; i++) {
734	+	if (strcmp(argv[i], "--help") == 0) {
735	+	usage(argv[0]);
736	+	#ifndef USE_SDL_VIDEO
737	+	} else if (strcmp(argv[i], "--display") == 0) {
738	+	i++;
739	+	if (i < argc)
740	+	x_display_name = strdup(argv[i]);
741	+	#endif
742	+	} else if (strcmp(argv[i], "--gui-connection") == 0) {
743	+	argv[i++] = NULL;
744	+	if (i < argc) {
745	+	gui_connection_path = argv[i];
746	+	argv[i] = NULL;
747	+	}
748	+	} else if (valid_vmdir(argv[i])) {
749	+	vmdir = argv[i];
750	+	argv[i] = NULL;
751	+	printf("Using %s as vmdir.\n", vmdir);
752	+	if (chdir(vmdir)) {
753	+	printf("Failed to chdir to %s. Good bye.", vmdir);
754	+	exit(1);
755	+	}
756	+	break;
757	+	}
758	+	}
759	+
760	+	// Remove processed arguments
761	+	for (int i=1; i<argc; i++) {
762	+	int k;
763	+	for (k=i; k<argc; k++)
764	+	if (argv[k] != NULL)
765	+	break;
766	+	if (k > i) {
767	+	k -= i;
768	+	for (int j=i+k; j<argc; j++)
769	+	argv[j-k] = argv[j];
770	+	argc -= k;
771	+	}
772	+	}
773	+
774	+	// Connect to the external GUI
775	+	if (gui_connection_path) {
776	+	if ((gui_connection = rpc_init_client(gui_connection_path)) == NULL) {
777	+	fprintf(stderr, "Failed to initialize RPC client connection to the GUI\n");
778	+	return 1;
779	+	}
780	+	}
781	+
782	+	#ifdef ENABLE_GTK
783	+	if (!gui_connection) {
784	+	// Init GTK
785	+	gtk_set_locale();
786	+	gtk_init(&argc, &argv);
787	+	}
788	+	#endif
789	+
790	+	// Read preferences
791	+	PrefsInit(vmdir, argc, argv);
792	+
793	+	// Any command line arguments left?
794	+	for (int i=1; i<argc; i++) {
795	+	if (argv[i][0] == '-') {
796	+	fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
797	+	usage(argv[0]);
798	+	}
799	+	}
800	+
801	+	#ifdef USE_SDL
802	+	// Initialize SDL system
803	+	if (!init_sdl())
804	+	goto quit;
805	+	#endif
806	+
807	+	#ifndef USE_SDL_VIDEO
808	+	// Open display
809	+	x_display = XOpenDisplay(x_display_name);
810	+	if (x_display == NULL) {
811	+	char str[256];
812	+	sprintf(str, GetString(STR_NO_XSERVER_ERR), XDisplayName(x_display_name));
813	+	ErrorAlert(str);
814	+	goto quit;
815	+	}
816	+
817	+	#if defined(ENABLE_XF86_DGA) && !defined(ENABLE_MON)
818	+	// Fork out, so we can return from fullscreen mode when things get ugly
819	+	XF86DGAForkApp(DefaultScreen(x_display));
820	+	#endif
821	+	#endif
822	+
823	+	#ifdef ENABLE_MON
824	+	// Initialize mon
825	+	mon_init();
826	+	#endif
827	+
828	+	// Install signal handlers
829	+	if (!install_signal_handlers())
830	+	goto quit;
831	+
832	+	// Initialize VM system
833	+	vm_init();
834	+
835	+	// Get system info
836	+	get_system_info();
837
838		// Init system routines
839		SysInit();
#	Line 767 | Line 856 | int main(int argc, char **argv)
856		goto quit;
857		}
858
770	–	#ifndef PAGEZERO_HACK
771	–	// Create Low Memory area (0x0000..0x3000)
772	–	if (vm_acquire_fixed((char *)NATMEM_OFFSET, 0x3000) < 0) {
773	–	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
774	–	ErrorAlert(str);
775	–	goto quit;
776	–	}
777	–	lm_area_mapped = true;
778	–	#endif
779	–
859		// Create areas for Kernel Data
860	<	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
782	<	if (kernel_area == -1) {
783	<	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
784	<	ErrorAlert(str);
785	<	goto quit;
786	<	}
787	<	if (shmat(kernel_area, (void *)(KERNEL_DATA_BASE + NATMEM_OFFSET), 0) < 0) {
788	<	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
789	<	ErrorAlert(str);
790	<	goto quit;
791	<	}
792	<	if (shmat(kernel_area, (void *)(KERNEL_DATA2_BASE + NATMEM_OFFSET), 0) < 0) {
793	<	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
794	<	ErrorAlert(str);
860	>	if (!kernel_data_init())
861		goto quit;
862	<	}
797	<	kernel_data = (KernelData *)(KERNEL_DATA_BASE + NATMEM_OFFSET);
862	>	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
863		emulator_data = &kernel_data->ed;
864		KernelDataAddr = KERNEL_DATA_BASE;
865		D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE));
866		D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
867
868		// Create area for DR Cache
869	<	if (vm_acquire_fixed((void *)(DR_EMULATOR_BASE + NATMEM_OFFSET), DR_EMULATOR_SIZE) < 0) {
869	>	if (vm_mac_acquire_fixed(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
870		sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
871		ErrorAlert(str);
872		goto quit;
873		}
874		dr_emulator_area_mapped = true;
875	<	if (vm_acquire_fixed((void *)(DR_CACHE_BASE + NATMEM_OFFSET), DR_CACHE_SIZE) < 0) {
875	>	if (vm_mac_acquire_fixed(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
876		sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
877		ErrorAlert(str);
878		goto quit;
#	Line 829 | Line 894 | int main(int argc, char **argv)
894		ErrorAlert(str);
895		goto quit;
896		}
897	<
833	<	// Create area for Mac ROM
834	<	ROMBaseHost = (uint8 *)(ROM_BASE + NATMEM_OFFSET);
835	<	if (vm_acquire_fixed(ROMBaseHost, ROM_AREA_SIZE) < 0) {
836	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
837	<	ErrorAlert(str);
838	<	goto quit;
839	<	}
840	<	#if !EMULATED_PPC
841	<	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
842	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
843	<	ErrorAlert(str);
844	<	goto quit;
845	<	}
846	<	#endif
847	<	rom_area_mapped = true;
848	<	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROM_BASE));
849	<
897	>
898		// Create area for Mac RAM
899		RAMSize = PrefsFindInt32("ramsize");
900		if (RAMSize < 8*1024*1024) {
901		WarningAlert(GetString(STR_SMALL_RAM_WARN));
902		RAMSize = 8*1024*1024;
903		}
904	<
905	<	RAMBaseHost = (uint8 *)(RAM_BASE + NATMEM_OFFSET);
906	<	if (vm_acquire_fixed(RAMBaseHost, RAMSize) < 0) {
907	<	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
908	<	ErrorAlert(str);
909	<	goto quit;
904	>	memory_mapped_from_zero = false;
905	>	ram_rom_areas_contiguous = false;
906	>	#if REAL_ADDRESSING && HAVE_LINKER_SCRIPT
907	>	if (vm_mac_acquire_fixed(0, RAMSize) == 0) {
908	>	D(bug("Could allocate RAM from 0x0000\n"));
909	>	RAMBase = 0;
910	>	RAMBaseHost = Mac2HostAddr(RAMBase);
911	>	memory_mapped_from_zero = true;
912	>	}
913	>	#endif
914	>	if (!memory_mapped_from_zero) {
915	>	#ifndef PAGEZERO_HACK
916	>	// Create Low Memory area (0x0000..0x3000)
917	>	if (vm_mac_acquire_fixed(0, 0x3000) < 0) {
918	>	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
919	>	ErrorAlert(str);
920	>	goto quit;
921	>	}
922	>	lm_area_mapped = true;
923	>	#endif
924	>	#if REAL_ADDRESSING
925	>	// Allocate RAM at any address. Since ROM must be higher than RAM, allocate the RAM
926	>	// and ROM areas contiguously, plus a little extra to allow for ROM address alignment.
927	>	RAMBaseHost = vm_mac_acquire(RAMSize + ROM_AREA_SIZE + ROM_ALIGNMENT);
928	>	if (RAMBaseHost == VM_MAP_FAILED) {
929	>	sprintf(str, GetString(STR_RAM_ROM_MMAP_ERR), strerror(errno));
930	>	ErrorAlert(str);
931	>	goto quit;
932	>	}
933	>	RAMBase = Host2MacAddr(RAMBaseHost);
934	>	ROMBase = (RAMBase + RAMSize + ROM_ALIGNMENT -1) & -ROM_ALIGNMENT;
935	>	ROMBaseHost = Mac2HostAddr(ROMBase);
936	>	ram_rom_areas_contiguous = true;
937	>	#else
938	>	if (vm_mac_acquire_fixed(RAM_BASE, RAMSize) < 0) {
939	>	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
940	>	ErrorAlert(str);
941	>	goto quit;
942	>	}
943	>	RAMBase = RAM_BASE;
944	>	RAMBaseHost = Mac2HostAddr(RAMBase);
945	>	#endif
946		}
947		#if !EMULATED_PPC
948		if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
#	Line 867 | Line 951 | int main(int argc, char **argv)
951		goto quit;
952		}
953		#endif
870	–	RAMBase = RAM_BASE;
954		ram_area_mapped = true;
955		D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
956
957	<	if (RAMBase > ROM_BASE) {
958	<	ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
957	>	if (RAMBase > KernelDataAddr) {
958	>	ErrorAlert(GetString(STR_RAM_AREA_TOO_HIGH_ERR));
959		goto quit;
960		}
878	–
879	–	// Load Mac ROM
880	–	rom_path = PrefsFindString("rom");
881	–	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
882	–	if (rom_fd < 0) {
883	–	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME2, O_RDONLY);
884	–	if (rom_fd < 0) {
885	–	ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
886	–	goto quit;
887	–	}
888	–	}
889	–	printf(GetString(STR_READING_ROM_FILE));
890	–	rom_size = lseek(rom_fd, 0, SEEK_END);
891	–	lseek(rom_fd, 0, SEEK_SET);
892	–	rom_tmp = new uint8[ROM_SIZE];
893	–	actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
894	–	close(rom_fd);
961
962	<	// Decode Mac ROM
963	<	if (!DecodeROM(rom_tmp, actual)) {
964	<	if (rom_size != 4*1024*1024) {
965	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
966	<	goto quit;
901	<	} else {
902	<	ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
962	>	// Create area for Mac ROM
963	>	if (!ram_rom_areas_contiguous) {
964	>	if (vm_mac_acquire_fixed(ROM_BASE, ROM_AREA_SIZE) < 0) {
965	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
966	>	ErrorAlert(str);
967		goto quit;
968		}
969	+	ROMBase = ROM_BASE;
970	+	ROMBaseHost = Mac2HostAddr(ROMBase);
971		}
972	<	delete[] rom_tmp;
973	<
974	<	// Load NVRAM
975	<	XPRAMInit();
910	<
911	<	// Load XPRAM default values if signature not found
912	<	if (XPRAM[0x130c] != 0x4e || XPRAM[0x130d] != 0x75
913	<	|| XPRAM[0x130e] != 0x4d || XPRAM[0x130f] != 0x63) {
914	<	D(bug("Loading XPRAM default values\n"));
915	<	memset(XPRAM + 0x1300, 0, 0x100);
916	<	XPRAM[0x130c] = 0x4e;   // "NuMc" signature
917	<	XPRAM[0x130d] = 0x75;
918	<	XPRAM[0x130e] = 0x4d;
919	<	XPRAM[0x130f] = 0x63;
920	<	XPRAM[0x1301] = 0x80;   // InternalWaitFlags = DynWait (don't wait for SCSI devices upon bootup)
921	<	XPRAM[0x1310] = 0xa8;   // Standard PRAM values
922	<	XPRAM[0x1311] = 0x00;
923	<	XPRAM[0x1312] = 0x00;
924	<	XPRAM[0x1313] = 0x22;
925	<	XPRAM[0x1314] = 0xcc;
926	<	XPRAM[0x1315] = 0x0a;
927	<	XPRAM[0x1316] = 0xcc;
928	<	XPRAM[0x1317] = 0x0a;
929	<	XPRAM[0x131c] = 0x00;
930	<	XPRAM[0x131d] = 0x02;
931	<	XPRAM[0x131e] = 0x63;
932	<	XPRAM[0x131f] = 0x00;
933	<	XPRAM[0x1308] = 0x13;
934	<	XPRAM[0x1309] = 0x88;
935	<	XPRAM[0x130a] = 0x00;
936	<	XPRAM[0x130b] = 0xcc;
937	<	XPRAM[0x1376] = 0x00;   // OSDefault = MacOS
938	<	XPRAM[0x1377] = 0x01;
939	<	}
940	<
941	<	// Set boot volume
942	<	i16 = PrefsFindInt32("bootdrive");
943	<	XPRAM[0x1378] = i16 >> 8;
944	<	XPRAM[0x1379] = i16 & 0xff;
945	<	i16 = PrefsFindInt32("bootdriver");
946	<	XPRAM[0x137a] = i16 >> 8;
947	<	XPRAM[0x137b] = i16 & 0xff;
948	<
949	<	// Create BootGlobs at top of Mac memory
950	<	memset(RAMBaseHost + RAMSize - 4096, 0, 4096);
951	<	BootGlobsAddr = RAMBase + RAMSize - 0x1c;
952	<	WriteMacInt32(BootGlobsAddr - 5 * 4, RAMBase + RAMSize);        // MemTop
953	<	WriteMacInt32(BootGlobsAddr + 0 * 4, RAMBase);                          // First RAM bank
954	<	WriteMacInt32(BootGlobsAddr + 1 * 4, RAMSize);
955	<	WriteMacInt32(BootGlobsAddr + 2 * 4, (uint32)-1);                       // End of bank table
956	<
957	<	// Init thunks
958	<	if (!ThunksInit())
972	>	#if !EMULATED_PPC
973	>	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
974	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
975	>	ErrorAlert(str);
976		goto quit;
977	+	}
978	+	#endif
979	+	rom_area_mapped = true;
980	+	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROMBase));
981
982	<	// Init drivers
983	<	SonyInit();
984	<	DiskInit();
985	<	CDROMInit();
965	<	SCSIInit();
966	<
967	<	// Init external file system
968	<	ExtFSInit();
969	<
970	<	// Init ADB
971	<	ADBInit();
972	<
973	<	// Init audio
974	<	AudioInit();
975	<
976	<	// Init network
977	<	EtherInit();
978	<
979	<	// Init serial ports
980	<	SerialInit();
981	<
982	<	// Init Time Manager
983	<	TimerInit();
984	<
985	<	// Init clipboard
986	<	ClipInit();
982	>	if (RAMBase > ROMBase) {
983	>	ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
984	>	goto quit;
985	>	}
986
987	<	// Init video
988	<	if (!VideoInit())
987	>	// Load Mac ROM
988	>	if (!load_mac_rom())
989		goto quit;
990
991	<	// Install ROM patches
992	<	if (!PatchROM()) {
994	<	ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
991	>	// Initialize everything
992	>	if (!InitAll(vmdir))
993		goto quit;
994	<	}
994	>	D(bug("Initialization complete\n"));
995
996		// Clear caches (as we loaded and patched code) and write protect ROM
997		#if !EMULATED_PPC
998	<	MakeExecutable(0, ROM_BASE, ROM_AREA_SIZE);
998	>	flush_icache_range(ROMBase, ROMBase + ROM_AREA_SIZE);
999		#endif
1000		vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
1001
1004	–	// Initialize Kernel Data
1005	–	memset(kernel_data, 0, sizeof(KernelData));
1006	–	if (ROMType == ROMTYPE_NEWWORLD) {
1007	–	uint32 of_dev_tree = SheepMem::Reserve(4 * sizeof(uint32));
1008	–	Mac_memset(of_dev_tree, 0, 4 * sizeof(uint32));
1009	–	uint32 vector_lookup_tbl = SheepMem::Reserve(128);
1010	–	uint32 vector_mask_tbl = SheepMem::Reserve(64);
1011	–	memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
1012	–	Mac_memset(vector_lookup_tbl, 0, 128);
1013	–	Mac_memset(vector_mask_tbl, 0, 64);
1014	–	kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
1015	–	kernel_data->v[0xb84 >> 2] = htonl(of_dev_tree);                        // OF device tree base
1016	–	kernel_data->v[0xb90 >> 2] = htonl(vector_lookup_tbl);
1017	–	kernel_data->v[0xb94 >> 2] = htonl(vector_mask_tbl);
1018	–	kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE);                           // OpenPIC base
1019	–	kernel_data->v[0xbb0 >> 2] = htonl(0);                                          // ADB base
1020	–	kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
1021	–	kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
1022	–	kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
1023	–	kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
1024	–	kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
1025	–	kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
1026	–	kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
1027	–	kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
1028	–	kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
1029	–	kernel_data->v[0xf60 >> 2] = htonl(PVR);
1030	–	kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed);                      // clock-frequency
1031	–	kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed);                      // bus-frequency
1032	–	kernel_data->v[0xf6c >> 2] = htonl(TimebaseSpeed);                      // timebase-frequency
1033	–	} else {
1034	–	kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
1035	–	kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
1036	–	kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
1037	–	kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
1038	–	kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
1039	–	kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
1040	–	kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
1041	–	kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
1042	–	kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
1043	–	kernel_data->v[0xf80 >> 2] = htonl(PVR);
1044	–	kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed);                      // clock-frequency
1045	–	kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed);                      // bus-frequency
1046	–	kernel_data->v[0xf8c >> 2] = htonl(TimebaseSpeed);                      // timebase-frequency
1047	–	}
1048	–
1049	–	// Initialize extra low memory
1050	–	D(bug("Initializing Low Memory...\n"));
1051	–	Mac_memset(0, 0, 0x3000);
1052	–	WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h'));                  // Signature to detect SheepShaver
1053	–	WriteMacInt32(XLM_KERNEL_DATA, KernelDataAddr);                                 // For trap replacement routines
1054	–	WriteMacInt32(XLM_PVR, PVR);                                                                    // Theoretical PVR
1055	–	WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed);                                    // For DriverServicesLib patch
1056	–	WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN);                // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
1057	–	WriteMacInt32(XLM_ZERO_PAGE, SheepMem::ZeroPage());                             // Pointer to read-only page with all bits set to 0
1058	–	#if !EMULATED_PPC
1059	–	WriteMacInt32(XLM_TOC, (uint32)TOC);                                                            // TOC pointer of emulator
1060	–	#endif
1061	–	WriteMacInt32(XLM_ETHER_INIT, NativeFunction(NATIVE_ETHER_INIT));       // DLPI ethernet driver functions
1062	–	WriteMacInt32(XLM_ETHER_TERM, NativeFunction(NATIVE_ETHER_TERM));
1063	–	WriteMacInt32(XLM_ETHER_OPEN, NativeFunction(NATIVE_ETHER_OPEN));
1064	–	WriteMacInt32(XLM_ETHER_CLOSE, NativeFunction(NATIVE_ETHER_CLOSE));
1065	–	WriteMacInt32(XLM_ETHER_WPUT, NativeFunction(NATIVE_ETHER_WPUT));
1066	–	WriteMacInt32(XLM_ETHER_RSRV, NativeFunction(NATIVE_ETHER_RSRV));
1067	–	WriteMacInt32(XLM_VIDEO_DOIO, NativeFunction(NATIVE_VIDEO_DO_DRIVER_IO));
1068	–	D(bug("Low Memory initialized\n"));
1069	–
1002		// Start 60Hz thread
1003		tick_thread_cancel = false;
1004		tick_thread_active = (pthread_create(&tick_thread, NULL, tick_func, NULL) == 0);
#	Line 1088 | Line 1020 | int main(int argc, char **argv)
1020		sigill_action.sa_restorer = NULL;
1021		#endif
1022		if (sigaction(SIGILL, &sigill_action, NULL) < 0) {
1023	<	sprintf(str, GetString(STR_SIGILL_INSTALL_ERR), strerror(errno));
1023	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGILL", strerror(errno));
1024		ErrorAlert(str);
1025		goto quit;
1026		}
#	Line 1097 | Line 1029 | int main(int argc, char **argv)
1029		#if !EMULATED_PPC
1030		// Install interrupt signal handler
1031		sigemptyset(&sigusr2_action.sa_mask);
1032	<	sigusr2_action.sa_sigaction = sigusr2_handler;
1032	>	sigusr2_action.sa_sigaction = sigusr2_handler_init;
1033		sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART | SA_SIGINFO;
1034		#ifdef HAVE_SIGNAL_SA_RESTORER
1035		sigusr2_action.sa_restorer = NULL;
1036		#endif
1037		if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
1038	<	sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
1038	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGUSR2", strerror(errno));
1039		ErrorAlert(str);
1040		goto quit;
1041		}
#	Line 1160 | Line 1092 | static void Quit(void)
1092		sigaction(SIGILL, &sigill_action, NULL);
1093
1094		// Delete stacks for signal handlers
1095	<	for (int i = 0; i < SIG_STACK_COUNT; i++) {
1096	<	void *sig_stack = sig_stacks[i].ss_sp;
1097	<	if (sig_stack)
1098	<	free(sig_stack);
1167	<	}
1095	>	if (sig_stack.ss_sp)
1096	>	free(sig_stack.ss_sp);
1097	>	if (extra_stack.ss_sp)
1098	>	free(extra_stack.ss_sp);
1099		#endif
1100
1101	<	// Save NVRAM
1102	<	XPRAMExit();
1172	<
1173	<	// Exit clipboard
1174	<	ClipExit();
1175	<
1176	<	// Exit Time Manager
1177	<	TimerExit();
1178	<
1179	<	// Exit serial
1180	<	SerialExit();
1181	<
1182	<	// Exit network
1183	<	EtherExit();
1184	<
1185	<	// Exit audio
1186	<	AudioExit();
1187	<
1188	<	// Exit ADB
1189	<	ADBExit();
1190	<
1191	<	// Exit video
1192	<	VideoExit();
1193	<
1194	<	// Exit external file system
1195	<	ExtFSExit();
1196	<
1197	<	// Exit drivers
1198	<	SCSIExit();
1199	<	CDROMExit();
1200	<	DiskExit();
1201	<	SonyExit();
1202	<
1203	<	// Delete thunks
1204	<	ThunksExit();
1101	>	// Deinitialize everything
1102	>	ExitAll();
1103
1104		// Delete SheepShaver globals
1105		SheepMem::Exit();
1106
1107		// Delete RAM area
1108		if (ram_area_mapped)
1109	<	vm_release(RAMBaseHost, RAMSize);
1109	>	vm_mac_release(RAMBase, RAMSize);
1110
1111		// Delete ROM area
1112		if (rom_area_mapped)
1113	<	vm_release(ROMBaseHost, ROM_AREA_SIZE);
1113	>	vm_mac_release(ROMBase, ROM_AREA_SIZE);
1114
1115		// Delete DR cache areas
1116		if (dr_emulator_area_mapped)
1117	<	vm_release((void *)(DR_EMULATOR_BASE + NATMEM_OFFSET), DR_EMULATOR_SIZE);
1117	>	vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
1118		if (dr_cache_area_mapped)
1119	<	vm_release((void *)(DR_CACHE_BASE + NATMEM_OFFSET), DR_CACHE_SIZE);
1222	<
1223	<	// Delete Kernel Data area
1224	<	if (kernel_area >= 0) {
1225	<	shmdt((void *)(KERNEL_DATA_BASE + NATMEM_OFFSET));
1226	<	shmdt((void *)(KERNEL_DATA2_BASE + NATMEM_OFFSET));
1227	<	shmctl(kernel_area, IPC_RMID, NULL);
1228	<	}
1119	>	vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE);
1120
1121		// Delete Low Memory area
1122		if (lm_area_mapped)
1123	<	vm_release((void *)NATMEM_OFFSET, 0x3000);
1123	>	vm_mac_release(0, 0x3000);
1124
1125		// Close /dev/zero
1126		if (zero_fd > 0)
#	Line 1252 | Line 1143 | static void Quit(void)
1143		XCloseDisplay(x_display);
1144		#endif
1145
1146	+	// Notify GUI we are about to leave
1147	+	if (gui_connection) {
1148	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_EXIT, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
1149	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID);
1150	+	}
1151	+
1152		exit(0);
1153		}
1154
1155
1156		/*
1157	+	*  Initialize Kernel Data segments
1158	+	*/
1159	+
1160	+	static bool kernel_data_init(void)
1161	+	{
1162	+	char str[256];
1163	+	void *kernel_addr1 = NULL;
1164	+	void *kernel_addr2 = NULL;
1165	+	uint32 kernel_area_size = (KERNEL_AREA_SIZE + SHMLBA - 1) & -SHMLBA;
1166	+
1167	+	kernel_area = shmget(IPC_PRIVATE, kernel_area_size, 0600);
1168	+	if (kernel_area == -1) {
1169	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
1170	+	goto fail_shmget;
1171	+	}
1172	+	kernel_addr1 = Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA);
1173	+	if (shmat(kernel_area, kernel_addr1, 0) != kernel_addr1) {
1174	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
1175	+	goto fail_shmat1;
1176	+	}
1177	+	kernel_addr2 = Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA);
1178	+	if (shmat(kernel_area, kernel_addr2, 0) != kernel_addr2) {
1179	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
1180	+	goto fail_shmat2;
1181	+	}
1182	+	atexit(kernel_data_exit);
1183	+	return true;
1184	+
1185	+	fail_shmat2:
1186	+	shmdt(kernel_addr1);
1187	+	fail_shmat1:
1188	+	shmctl(kernel_area, IPC_RMID, NULL);
1189	+	fail_shmget:
1190	+	ErrorAlert(str);
1191	+	return false;
1192	+	}
1193	+
1194	+
1195	+	/*
1196	+	*  Deallocate Kernel Data segments
1197	+	*/
1198	+
1199	+	static void kernel_data_exit(void)
1200	+	{
1201	+	if (kernel_area >= 0) {
1202	+	shmdt(Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA));
1203	+	shmdt(Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA));
1204	+	shmctl(kernel_area, IPC_RMID, NULL);
1205	+	kernel_area = NULL;
1206	+	}
1207	+	}
1208	+
1209	+
1210	+	/*
1211		*  Jump into Mac ROM, start 680x0 emulator
1212		*/
1213
#	Line 1284 | Line 1235 | static void *emul_func(void *arg)
1235		// Jump to ROM boot routine
1236		D(bug("Jumping to ROM\n"));
1237		#if EMULATED_PPC
1238	<	jump_to_rom(ROM_BASE + 0x310000);
1238	>	jump_to_rom(ROMBase + 0x310000);
1239		#else
1240	<	jump_to_rom(ROM_BASE + 0x310000, (uint32)emulator_data);
1240	>	jump_to_rom(ROMBase + 0x310000, (uint32)emulator_data);
1241		#endif
1242		D(bug("Returned from ROM\n"));
1243
#	Line 1343 | Line 1294 | void QuitEmulator(void)
1294
1295
1296		/*
1346	–	*  Pause/resume emulator
1347	–	*/
1348	–
1349	–	void PauseEmulator(void)
1350	–	{
1351	–	pthread_kill(emul_thread, SIGSTOP);
1352	–	}
1353	–
1354	–	void ResumeEmulator(void)
1355	–	{
1356	–	pthread_kill(emul_thread, SIGCONT);
1357	–	}
1358	–
1359	–
1360	–	/*
1297		*  Dump 68k registers
1298		*/
1299
#	Line 1387 | Line 1323 | void Dump68kRegs(M68kRegisters *r)
1323
1324		void MakeExecutable(int dummy, uint32 start, uint32 length)
1325		{
1326	<	if ((start >= ROM_BASE) && (start < (ROM_BASE + ROM_SIZE)))
1326	>	if ((start >= ROMBase) && (start < (ROMBase + ROM_SIZE)))
1327		return;
1328		#if EMULATED_PPC
1329		FlushCodeCache(start, start + length);
1330		#else
1331	<	flush_icache_range(start, (void *)(start + length));
1331	>	flush_icache_range(start, start + length);
1332		#endif
1333		}
1334
1335
1336		/*
1401	–	*  Patch things after system startup (gets called by disk driver accRun routine)
1402	–	*/
1403	–
1404	–	void PatchAfterStartup(void)
1405	–	{
1406	–	ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL);
1407	–	InstallExtFS();
1408	–	}
1409	–
1410	–
1411	–	/*
1337		*  NVRAM watchdog thread (saves NVRAM every minute)
1338		*/
1339
#	Line 1461 | Line 1386 | static void *tick_func(void *arg)
1386		sigregs *r = &sigsegv_regs;
1387		char str[256];
1388		if (crash_reason == NULL)
1389	<	crash_reason = "SIGSEGV";
1389	>	crash_reason = "SIGSEGV!";
1390		sprintf(str, "%s\n"
1391		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1392		"  xer %08lx     cr %08lx  \n"
#	Line 1487 | Line 1412 | static void *tick_func(void *arg)
1412		printf(str);
1413		VideoQuitFullScreen();
1414
1415	+	{
1416	+	static int (*backtrace_fn)(void**, int);
1417	+	static char** (*backtrace_symbols_fn)(void* const*, int);
1418	+	backtrace_fn = dlsym(RTLD_DEFAULT, "backtrace");
1419	+	backtrace_symbols_fn = dlsym(RTLD_DEFAULT, "backtrace_symbols");
1420	+	void *frame_ptrs[64];
1421	+	int count = backtrace_fn(frame_ptrs, 64);
1422	+	char **fnames = backtrace_symbols_fn(frame_ptrs, count);
1423	+	int i;
1424	+	for (i = 0; i < count; i++)
1425	+	printf("%s", fnames[i]);
1426	+	free(fnames);
1427	+	}
1428	+
1429		#ifdef ENABLE_MON
1430		// Start up mon in real-mode
1431		printf("Welcome to the sheep factory.\n");
#	Line 1511 | Line 1450 | static void *tick_func(void *arg)
1450		}
1451
1452		uint64 end = GetTicks_usec();
1453	<	D(bug("%Ld ticks in %Ld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1453	>	D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1454		return NULL;
1455		}
1456
#	Line 1561 | Line 1500 | struct B2_mutex {
1500		pthread_mutexattr_init(&attr);
1501		// Initialize the mutex for priority inheritance --
1502		// required for accurate timing.
1503	<	#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL
1503	>	#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
1504		pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
1505		#endif
1506		#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
#	Line 1635 | Line 1574 | void B2_delete_mutex(B2_mutex *mutex)
1574		#if !EMULATED_PPC
1575		void TriggerInterrupt(void)
1576		{
1577	<	if (ready_for_signals)
1577	>	if (ready_for_signals) {
1578	>	idle_resume();
1579		pthread_kill(emul_thread, SIGUSR2);
1580	+	}
1581		}
1582		#endif
1583
#	Line 1691 | Line 1632 | void EnableInterrupt(void)
1632		*/
1633
1634		#if !EMULATED_PPC
1635	<	static void sigusr2_handler(int sig, siginfo_t *sip, void *scp)
1635	>	void sigusr2_handler(int sig, siginfo_t *sip, void *scp)
1636		{
1637		machine_regs *r = MACHINE_REGISTERS(scp);
1638
1639	+	#ifdef SYSTEM_CLOBBERS_R2
1640	+	// Restore pointer to Thread Local Storage
1641	+	set_r2(TOC);
1642	+	#endif
1643	+	#ifdef SYSTEM_CLOBBERS_R13
1644	+	// Restore pointer to .sdata section
1645	+	set_r13(R13);
1646	+	#endif
1647	+
1648		#ifdef USE_SDL_VIDEO
1649		// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1650		SDL_PumpEvents();
#	Line 1720 | Line 1670 | static void sigusr2_handler(int sig, sig
1670		// 68k emulator inactive, in nanokernel?
1671		if (r->gpr(1) != KernelDataAddr) {
1672
1673	<	// Set extra stack for nested interrupts
1674	<	sig_stack_acquire();
1673	>	// Set extra stack for SIGSEGV handler
1674	>	sigaltstack(&extra_stack, NULL);
1675
1676		// Prepare for 68k interrupt level 1
1677		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
#	Line 1730 | Line 1680 | static void sigusr2_handler(int sig, sig
1680		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1681		DisableInterrupt();
1682		if (ROMType == ROMTYPE_NEWWORLD)
1683	<	ppc_interrupt(ROM_BASE + 0x312b1c, KernelDataAddr);
1683	>	ppc_interrupt(ROMBase + 0x312b1c, KernelDataAddr);
1684		else
1685	<	ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1685	>	ppc_interrupt(ROMBase + 0x312a3c, KernelDataAddr);
1686
1687	<	// Reset normal signal stack
1688	<	sig_stack_release();
1687	>	// Reset normal stack
1688	>	sigaltstack(&sig_stack, NULL);
1689		}
1690		break;
1691		#endif
#	Line 1746 | Line 1696 | static void sigusr2_handler(int sig, sig
1696		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1697
1698		// Set extra stack for SIGSEGV handler
1699	<	sig_stack_acquire();
1699	>	sigaltstack(&extra_stack, NULL);
1700		#if 1
1701		// Execute full 68k interrupt routine
1702		M68kRegisters r;
#	Line 1772 | Line 1722 | static void sigusr2_handler(int sig, sig
1722		}
1723		}
1724		#endif
1725	<	// Reset normal signal stack
1726	<	sig_stack_release();
1725	>	// Reset normal stack
1726	>	sigaltstack(&sig_stack, NULL);
1727		}
1728		break;
1729		#endif
#	Line 1794 | Line 1744 | static void sigsegv_handler(int sig, sig
1744		// Get effective address
1745		uint32 addr = r->dar();
1746
1747	+	#ifdef SYSTEM_CLOBBERS_R2
1748	+	// Restore pointer to Thread Local Storage
1749	+	set_r2(TOC);
1750	+	#endif
1751	+	#ifdef SYSTEM_CLOBBERS_R13
1752	+	// Restore pointer to .sdata section
1753	+	set_r13(R13);
1754	+	#endif
1755	+
1756		#if ENABLE_VOSF
1757	<	// Handle screen fault.
1758	<	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
1759	<	if (Screen_fault_handler((sigsegv_address_t)addr, (sigsegv_address_t)r->pc()))
1757	>	// Handle screen fault
1758	>	#if SIGSEGV_CHECK_VERSION(1,0,0)
1759	>	sigsegv_info_t si;
1760	>	si.addr = (sigsegv_address_t)addr;
1761	>	si.pc = (sigsegv_address_t)r->pc();
1762	>	#endif
1763	>	extern bool Screen_fault_handler(sigsegv_info_t *sip);
1764	>	if (Screen_fault_handler(&si))
1765		return;
1766		#endif
1767
1768		num_segv++;
1769
1770		// Fault in Mac ROM or RAM or DR Cache?
1771	<	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));
1771	>	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));
1772		if (mac_fault) {
1773
1774		// "VM settings" during MacOS 8 installation
1775	<	if (r->pc() == ROM_BASE + 0x488160 && r->gpr(20) == 0xf8000000) {
1775	>	if (r->pc() == ROMBase + 0x488160 && r->gpr(20) == 0xf8000000) {
1776		r->pc() += 4;
1777		r->gpr(8) = 0;
1778		return;
1779
1780		// MacOS 8.5 installation
1781	<	} else if (r->pc() == ROM_BASE + 0x488140 && r->gpr(16) == 0xf8000000) {
1781	>	} else if (r->pc() == ROMBase + 0x488140 && r->gpr(16) == 0xf8000000) {
1782		r->pc() += 4;
1783		r->gpr(8) = 0;
1784		return;
1785
1786		// MacOS 8 serial drivers on startup
1787	<	} else if (r->pc() == ROM_BASE + 0x48e080 && (r->gpr(8) == 0xf3012002 || r->gpr(8) == 0xf3012000)) {
1787	>	} else if (r->pc() == ROMBase + 0x48e080 && (r->gpr(8) == 0xf3012002 || r->gpr(8) == 0xf3012000)) {
1788		r->pc() += 4;
1789		r->gpr(8) = 0;
1790		return;
1791
1792		// MacOS 8.1 serial drivers on startup
1793	<	} else if (r->pc() == ROM_BASE + 0x48c5e0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1793	>	} else if (r->pc() == ROMBase + 0x48c5e0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1794		r->pc() += 4;
1795		return;
1796	<	} else if (r->pc() == ROM_BASE + 0x4a10a0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1796	>	} else if (r->pc() == ROMBase + 0x4a10a0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1797		r->pc() += 4;
1798		return;
1799
#	Line 1962 | Line 1926 | static void sigsegv_handler(int sig, sig
1926
1927		// Ignore ROM writes (including to the zero page, which is read-only)
1928		if (transfer_type == TYPE_STORE &&
1929	<	((addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) ||
1929	>	((addr >= ROMBase && addr < ROMBase + ROM_SIZE) ||
1930		(addr >= SheepMem::ZeroPage() && addr < SheepMem::ZeroPage() + SheepMem::PageSize()))) {
1931		//                      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()));
1932		if (addr_mode == MODE_U || addr_mode == MODE_UX)
#	Line 2043 | Line 2007 | static void sigill_handler(int sig, sigi
2007		machine_regs *r = MACHINE_REGISTERS(scp);
2008		char str[256];
2009
2010	+	#ifdef SYSTEM_CLOBBERS_R2
2011	+	// Restore pointer to Thread Local Storage
2012	+	set_r2(TOC);
2013	+	#endif
2014	+	#ifdef SYSTEM_CLOBBERS_R13
2015	+	// Restore pointer to .sdata section
2016	+	set_r13(R13);
2017	+	#endif
2018	+
2019		// Fault in Mac ROM or RAM?
2020	<	bool mac_fault = (r->pc() >= ROM_BASE) && (r->pc() < (ROM_BASE + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
2020	>	bool mac_fault = (r->pc() >= ROMBase) && (r->pc() < (ROMBase + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
2021		if (mac_fault) {
2022
2023		// Get opcode and divide into fields
#	Line 2211 | Line 2184 | bool SheepMem::Init(void)
2184		page_size = getpagesize();
2185
2186		// Allocate SheepShaver globals
2187	<	if (vm_acquire_fixed((char *)(base + NATMEM_OFFSET), size) < 0)
2187	>	proc = base;
2188	>	if (vm_mac_acquire_fixed(base, size) < 0)
2189		return false;
2190
2191	<	// Allocate page with all bits set to 0
2192	<	zero_page = base + size;
2193	<	uint8 *zero_page_host = (uint8 *)zero_page + NATMEM_OFFSET;
2194	<	if (vm_acquire_fixed(zero_page_host, page_size) < 0)
2195	<	return false;
2222	<	memset(zero_page_host, 0, page_size);
2223	<	if (vm_protect(zero_page_host, page_size, VM_PAGE_READ) < 0)
2191	>	// Allocate page with all bits set to 0, right in the middle
2192	>	// This is also used to catch undesired overlaps between proc and data areas
2193	>	zero_page = proc + (size / 2);
2194	>	Mac_memset(zero_page, 0, page_size);
2195	>	if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0)
2196		return false;
2197
2198		#if EMULATED_PPC
2199		// Allocate alternate stack for PowerPC interrupt routine
2200	<	sig_stack = zero_page + page_size;
2201	<	if (vm_acquire_fixed((char *)(sig_stack + NATMEM_OFFSET), SIG_STACK_SIZE) < 0)
2200	>	sig_stack = base + size;
2201	>	if (vm_mac_acquire_fixed(sig_stack, SIG_STACK_SIZE) < 0)
2202		return false;
2203		#endif
2204
2205	<	top = base + size;
2205	>	data = base + size;
2206		return true;
2207		}
2208
2209		void SheepMem::Exit(void)
2210		{
2211	<	if (top) {
2211	>	if (data) {
2212		// Delete SheepShaver globals
2213	<	vm_release((void *)(base + NATMEM_OFFSET), size);
2242	<
2243	<	// Delete zero page
2244	<	vm_release((void *)(zero_page + NATMEM_OFFSET), page_size);
2213	>	vm_mac_release(base, size);
2214
2215		#if EMULATED_PPC
2216		// Delete alternate stack for PowerPC interrupt routine
2217	<	vm_release((void *)(sig_stack + NATMEM_OFFSET), SIG_STACK_SIZE);
2217	>	vm_mac_release(sig_stack, SIG_STACK_SIZE);
2218		#endif
2219		}
2220		}
#	Line 2300 | Line 2269 | void display_alert(int title_id, int pre
2269
2270		void ErrorAlert(const char *text)
2271		{
2272	+	if (gui_connection) {
2273	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_ERROR_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2274	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2275	+	return;
2276	+	}
2277		#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2278		if (PrefsFindBool("nogui") || x_display == NULL) {
2279		printf(GetString(STR_SHELL_ERROR_PREFIX), text);
#	Line 2319 | Line 2293 | void ErrorAlert(const char *text)
2293
2294		void WarningAlert(const char *text)
2295		{
2296	+	if (gui_connection) {
2297	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_WARNING_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2298	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2299	+	return;
2300	+	}
2301		#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2302		if (PrefsFindBool("nogui") || x_display == NULL) {
2303		printf(GetString(STR_SHELL_WARNING_PREFIX), text);

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