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

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.13 by gbeauche, 2003-11-03T21:28:25Z vs.
Revision 1.91 by asvitkine, 2011-12-26T22:41:53Z

#	Line 1 | Line 1
1		/*
2		*  main_unix.cpp - Emulation core, Unix implementation
3		*
4	<	*  SheepShaver (C) 1997-2002 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	+	*  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!)
79		*/
#	Line 80 | 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 93 | Line 103
103		#include "xpram.h"
104		#include "timer.h"
105		#include "adb.h"
96	–	#include "sony.h"
97	–	#include "disk.h"
98	–	#include "cdrom.h"
99	–	#include "scsi.h"
106		#include "video.h"
101	–	#include "audio.h"
102	–	#include "ether.h"
103	–	#include "serial.h"
104	–	#include "clip.h"
105	–	#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 "sigregs.h"
114	+	#include "rpc.h"
115
116		#define DEBUG 0
117		#include "debug.h"
118
119
120	+	#ifdef HAVE_DIRENT_H
121	+	#include <dirent.h>
122	+	#endif
123	+
124	+	#ifdef USE_SDL
125	+	#include <SDL.h>
126	+	#endif
127	+
128	+	#ifndef USE_SDL_VIDEO
129		#include <X11/Xlib.h>
130	+	#endif
131
132		#ifdef ENABLE_GTK
133		#include <gtk/gtk.h>
#	Line 123 | 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 131 | Line 144
144		#endif
145
146
147	+	// Enable emulation of unaligned lmw/stmw?
148	+	#define EMULATE_UNALIGNED_LOADSTORE_MULTIPLE 1
149	+
150		// Enable Execute68k() safety checks?
151		#define SAFE_EXEC_68K 0
152
#	Line 145 | Line 161
161		const char ROM_FILE_NAME[] = "ROM";
162		const char ROM_FILE_NAME2[] = "Mac OS ROM";
163
164	<	const uint32 RAM_BASE = 0x20000000;                     // Base address of RAM
165	<	const uint32 SIG_STACK_SIZE = 0x10000;          // Size of signal stack
166	<
167	<
168	<	#if !EMULATED_PPC
169	<	// Structure in which registers are saved in a signal handler;
170	<	// sigcontext->regs points to it
155	<	// (see arch/ppc/kernel/signal.c)
156	<	typedef struct {
157	<	uint32 u[4];
158	<	} __attribute((aligned(16))) vector128;
159	<	#include <linux/elf.h>
160	<
161	<	struct sigregs {
162	<	elf_gregset_t   gp_regs;                                // Identical to pt_regs
163	<	double                  fp_regs[ELF_NFPREG];    // f0..f31 and fpsrc
164	<	//more (uninteresting) stuff following here
165	<	};
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
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 SheepStack1Base; // SheepShaver first alternate stack base
176	<	uint32 SheepStack2Base; // SheepShaver second alternate stack base
177	<	uint32 SheepThunksBase; // SheepShaver thunks base
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
186		uint32 PVR;                             // Theoretical PVR
187		int64 CPUClockSpeed;    // Processor clock speed (Hz)
188		int64 BusClockSpeed;    // Bus clock speed (Hz)
189	+	int64 TimebaseSpeed;    // Timebase clock speed (Hz)
190	+	uint8 *RAMBaseHost;             // Base address of Mac RAM (host address space)
191	+	uint8 *ROMBaseHost;             // Base address of Mac ROM (host address space)
192
193
194		// Global variables
195	+	#ifndef USE_SDL_VIDEO
196		char *x_display_name = NULL;                            // X11 display name
197		Display *x_display = NULL;                                      // X11 display handle
198	+	#ifdef X11_LOCK_TYPE
199	+	X11_LOCK_TYPE x_display_lock = X11_LOCK_INIT; // X11 display lock
200	+	#endif
201	+	#endif
202
203		static int zero_fd = 0;                                         // FD of /dev/zero
190	–	static bool sheep_area_mapped = false;          // Flag: SheepShaver data area mmap()ed
204		static bool lm_area_mapped = false;                     // Flag: Low Memory area mmap()ped
205		static int kernel_area = -1;                            // SHM ID of Kernel Data area
206		static bool rom_area_mapped = false;            // Flag: Mac ROM mmap()ped
207		static bool ram_area_mapped = false;            // Flag: Mac RAM mmap()ped
208	+	static bool dr_cache_area_mapped = false;       // Flag: Mac DR Cache mmap()ped
209	+	static bool dr_emulator_area_mapped = false;// Flag: Mac DR Emulator mmap()ped
210		static KernelData *kernel_data;                         // Pointer to Kernel Data
211		static EmulatorData *emulator_data;
212
213		static uint8 last_xpram[XPRAM_SIZE];            // Buffer for monitoring XPRAM changes
214
215		static bool nvram_thread_active = false;        // Flag: NVRAM watchdog installed
216	+	static volatile bool nvram_thread_cancel;       // Flag: Cancel NVRAM thread
217		static pthread_t nvram_thread;                          // NVRAM watchdog
218		static bool tick_thread_active = false;         // Flag: MacOS thread installed
219	+	static volatile bool tick_thread_cancel;        // Flag: Cancel 60Hz thread
220		static pthread_t tick_thread;                           // 60Hz thread
221		static pthread_t emul_thread;                           // MacOS thread
222
#	Line 207 | Line 224 | static bool ready_for_signals = false;
224		static int64 num_segv = 0;                                      // Number of handled SEGV signals
225
226		static struct sigaction sigusr2_action;         // Interrupt signal (of emulator thread)
227	<	#if !EMULATED_PPC
227	>	#if EMULATED_PPC
228	>	static uintptr sig_stack = 0;                           // Stack for PowerPC interrupt routine
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 void *sig_stack = NULL;                          // Stack for signal handlers
233	<	static void *extra_stack = NULL;                        // 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)
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::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);
255		static void *tick_func(void *arg);
256		#if EMULATED_PPC
226	–	static void sigusr2_handler(int sig);
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_info_t *sip);
261		#else
262	<	static void sigusr2_handler(int sig, sigcontext_struct *sc);
263	<	static void sigsegv_handler(int sig, sigcontext_struct *sc);
264	<	static void sigill_handler(int sig, sigcontext_struct *sc);
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
267
268
269		// From asm_linux.S
270		#if !EMULATED_PPC
239	–	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 252 | Line 287 | extern void paranoia_check(void);
287
288		#if EMULATED_PPC
289		/*
290	+	*  Return signal stack base
291	+	*/
292	+
293	+	uintptr SignalStackBase(void)
294	+	{
295	+	return sig_stack + SIG_STACK_SIZE;
296	+	}
297	+
298	+
299	+	/*
300		*  Atomic operations
301		*/
302
#	Line 292 | 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 304 | Line 369 | static void usage(const char *prg_name)
369		exit(0);
370		}
371
372	+	static bool valid_vmdir(const char *path)
373	+	{
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		int main(int argc, char **argv)
388		{
389		char str[256];
310	–	uint32 *boot_globs;
311	–	int16 i16;
390		int rom_fd;
391		FILE *proc_file;
392		const char *rom_path;
393		uint32 rom_size, actual;
394		uint8 *rom_tmp;
395		time_t now, expire;
396	+	bool memory_mapped_from_zero, ram_rom_areas_contiguous;
397	+	const char *vmdir = NULL;
398	+
399	+	#ifdef USE_SDL_VIDEO
400	+	// Don't let SDL block the screensaver
401	+	setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", TRUE);
402	+
403	+	// Make SDL pass through command-clicks and option-clicks unaltered
404	+	setenv("SDL_HAS3BUTTONMOUSE", "1", TRUE);
405	+	#endif
406
407		// Initialize variables
408		RAMBase = 0;
#	Line 325 | Line 413 | int main(int argc, char **argv)
413		printf(" %s\n", GetString(STR_ABOUT_TEXT2));
414
415		#if !EMULATED_PPC
416	+	#ifdef SYSTEM_CLOBBERS_R2
417		// Get TOC pointer
418	<	TOC = get_toc();
418	>	TOC = get_r2();
419	>	#endif
420	>	#ifdef SYSTEM_CLOBBERS_R13
421	>	// Get r13 register
422	>	R13 = get_r13();
423		#endif
331	–
332	–	#ifdef ENABLE_GTK
333	–	// Init GTK
334	–	gtk_set_locale();
335	–	gtk_init(&argc, &argv);
424		#endif
337	–
338	–	// Read preferences
339	–	PrefsInit(argc, argv);
425
426		// Parse command line arguments
427		for (int i=1; i<argc; i++) {
428		if (strcmp(argv[i], "--help") == 0) {
429		usage(argv[0]);
430	+	#ifndef USE_SDL_VIDEO
431		} else if (strcmp(argv[i], "--display") == 0) {
432		i++;
433		if (i < argc)
434		x_display_name = strdup(argv[i]);
435	<	} else if (argv[i][0] == '-') {
435	>	#endif
436	>	} else if (strcmp(argv[i], "--gui-connection") == 0) {
437	>	argv[i++] = NULL;
438	>	if (i < argc) {
439	>	gui_connection_path = argv[i];
440	>	argv[i] = NULL;
441	>	}
442	>	} else if (valid_vmdir(argv[i])) {
443	>	vmdir = argv[i];
444	>	argv[i] = NULL;
445	>	printf("Using %s as vmdir.\n", vmdir);
446	>	if (chdir(vmdir)) {
447	>	printf("Failed to chdir to %s. Good bye.", vmdir);
448	>	exit(1);
449	>	}
450	>	break;
451	>	}
452	>	}
453	>
454	>	// Remove processed arguments
455	>	for (int i=1; i<argc; i++) {
456	>	int k;
457	>	for (k=i; k<argc; k++)
458	>	if (argv[k] != NULL)
459	>	break;
460	>	if (k > i) {
461	>	k -= i;
462	>	for (int j=i+k; j<argc; j++)
463	>	argv[j-k] = argv[j];
464	>	argc -= k;
465	>	}
466	>	}
467	>
468	>	// Connect to the external GUI
469	>	if (gui_connection_path) {
470	>	if ((gui_connection = rpc_init_client(gui_connection_path)) == NULL) {
471	>	fprintf(stderr, "Failed to initialize RPC client connection to the GUI\n");
472	>	return 1;
473	>	}
474	>	}
475	>
476	>	#ifdef ENABLE_GTK
477	>	if (!gui_connection) {
478	>	// Init GTK
479	>	gtk_set_locale();
480	>	gtk_init(&argc, &argv);
481	>	}
482	>	#endif
483	>
484	>	// Read preferences
485	>	PrefsInit(vmdir, argc, argv);
486	>
487	>	// Any command line arguments left?
488	>	for (int i=1; i<argc; i++) {
489	>	if (argv[i][0] == '-') {
490		fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
491		usage(argv[0]);
492		}
493		}
494
495	+	#ifdef USE_SDL
496	+	// Initialize SDL system
497	+	int sdl_flags = 0;
498	+	#ifdef USE_SDL_VIDEO
499	+	sdl_flags |= SDL_INIT_VIDEO;
500	+	#endif
501	+	#ifdef USE_SDL_AUDIO
502	+	sdl_flags |= SDL_INIT_AUDIO;
503	+	#endif
504	+	assert(sdl_flags != 0);
505	+	if (SDL_Init(sdl_flags) == -1) {
506	+	char str[256];
507	+	sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
508	+	ErrorAlert(str);
509	+	goto quit;
510	+	}
511	+	atexit(SDL_Quit);
512	+
513	+	// Don't let SDL catch SIGINT and SIGTERM signals
514	+	signal(SIGINT, SIG_DFL);
515	+	signal(SIGTERM, SIG_DFL);
516	+	#endif
517	+
518	+	#ifndef USE_SDL_VIDEO
519		// Open display
520		x_display = XOpenDisplay(x_display_name);
521		if (x_display == NULL) {
#	Line 365 | Line 529 | int main(int argc, char **argv)
529		// Fork out, so we can return from fullscreen mode when things get ugly
530		XF86DGAForkApp(DefaultScreen(x_display));
531		#endif
532	+	#endif
533
534		#ifdef ENABLE_MON
535		// Initialize mon
536		mon_init();
537		#endif
538
539	+	#if !EMULATED_PPC
540	+	// Create and install stacks for signal handlers
541	+	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
542	+	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
543	+	if (sig_stack.ss_sp == NULL) {
544	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
545	+	goto quit;
546	+	}
547	+	sig_stack.ss_flags = 0;
548	+	sig_stack.ss_size = SIG_STACK_SIZE;
549	+	if (sigaltstack(&sig_stack, NULL) < 0) {
550	+	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
551	+	ErrorAlert(str);
552	+	goto quit;
553	+	}
554	+	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
555	+	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
556	+	if (extra_stack.ss_sp == NULL) {
557	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
558	+	goto quit;
559	+	}
560	+	extra_stack.ss_flags = 0;
561	+	extra_stack.ss_size = SIG_STACK_SIZE;
562	+	#endif
563	+
564	+	#if !EMULATED_PPC
565	+	// Install SIGSEGV and SIGBUS handlers
566	+	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
567	+	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
568	+	sigsegv_action.sa_sigaction = sigsegv_handler;
569	+	sigsegv_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
570	+	#ifdef HAVE_SIGNAL_SA_RESTORER
571	+	sigsegv_action.sa_restorer = NULL;
572	+	#endif
573	+	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
574	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
575	+	ErrorAlert(str);
576	+	goto quit;
577	+	}
578	+	if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
579	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGBUS", strerror(errno));
580	+	ErrorAlert(str);
581	+	goto quit;
582	+	}
583	+	#else
584	+	// Install SIGSEGV handler for CPU emulator
585	+	if (!sigsegv_install_handler(sigsegv_handler)) {
586	+	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
587	+	ErrorAlert(str);
588	+	goto quit;
589	+	}
590	+	#endif
591	+
592	+	// Initialize VM system
593	+	vm_init();
594	+
595		// Get system info
596		PVR = 0x00040000;                       // Default: 604
597		CPUClockSpeed = 100000000;      // Default: 100MHz
598		BusClockSpeed = 100000000;      // Default: 100MHz
599	<	#if !EMULATED_PPC
599	>	TimebaseSpeed =  25000000;      // Default:  25MHz
600	>	#if EMULATED_PPC
601	>	PVR = 0x000c0000;                       // Default: 7400 (with AltiVec)
602	>	#elif defined(__APPLE__) && defined(__MACH__)
603	>	proc_file = popen("ioreg -c IOPlatformDevice", "r");
604	>	if (proc_file) {
605	>	char line[256];
606	>	bool powerpc_node = false;
607	>	while (fgets(line, sizeof(line) - 1, proc_file)) {
608	>	// Read line
609	>	int len = strlen(line);
610	>	if (len == 0)
611	>	continue;
612	>	line[len - 1] = 0;
613	>
614	>	// Parse line
615	>	if (strstr(line, "o PowerPC,"))
616	>	powerpc_node = true;
617	>	else if (powerpc_node) {
618	>	uint32 value;
619	>	char head[256];
620	>	if (sscanf(line, "%[ |]\"cpu-version\" = <%x>", head, &value) == 2)
621	>	PVR = value;
622	>	else if (sscanf(line, "%[ |]\"clock-frequency\" = <%x>", head, &value) == 2)
623	>	CPUClockSpeed = value;
624	>	else if (sscanf(line, "%[ |]\"bus-frequency\" = <%x>", head, &value) == 2)
625	>	BusClockSpeed = value;
626	>	else if (sscanf(line, "%[ |]\"timebase-frequency\" = <%x>", head, &value) == 2)
627	>	TimebaseSpeed = value;
628	>	else if (strchr(line, '}'))
629	>	powerpc_node = false;
630	>	}
631	>	}
632	>	fclose(proc_file);
633	>	} else {
634	>	sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
635	>	WarningAlert(str);
636	>	}
637	>	#else
638		proc_file = fopen("/proc/cpuinfo", "r");
639		if (proc_file) {
640	+	// CPU specs from Linux kernel
641	+	// TODO: make it more generic with features (e.g. AltiVec) and
642	+	// cache information and friends for NameRegistry
643	+	static const struct {
644	+	uint32 pvr_mask;
645	+	uint32 pvr_value;
646	+	const char *cpu_name;
647	+	}
648	+	cpu_specs[] = {
649	+	{ 0xffff0000, 0x00010000, "601" },
650	+	{ 0xffff0000, 0x00030000, "603" },
651	+	{ 0xffff0000, 0x00060000, "603e" },
652	+	{ 0xffff0000, 0x00070000, "603ev" },
653	+	{ 0xffff0000, 0x00040000, "604" },
654	+	{ 0xfffff000, 0x00090000, "604e" },
655	+	{ 0xffff0000, 0x00090000, "604r" },
656	+	{ 0xffff0000, 0x000a0000, "604ev" },
657	+	{ 0xffffffff, 0x00084202, "740/750" },
658	+	{ 0xfffff000, 0x00083000, "745/755" },
659	+	{ 0xfffffff0, 0x00080100, "750CX" },
660	+	{ 0xfffffff0, 0x00082200, "750CX" },
661	+	{ 0xfffffff0, 0x00082210, "750CXe" },
662	+	{ 0xffffff00, 0x70000100, "750FX" },
663	+	{ 0xffffffff, 0x70000200, "750FX" },
664	+	{ 0xffff0000, 0x70000000, "750FX" },
665	+	{ 0xffff0000, 0x70020000, "750GX" },
666	+	{ 0xffff0000, 0x00080000, "740/750" },
667	+	{ 0xffffffff, 0x000c1101, "7400 (1.1)" },
668	+	{ 0xffff0000, 0x000c0000, "7400" },
669	+	{ 0xffff0000, 0x800c0000, "7410" },
670	+	{ 0xffffffff, 0x80000200, "7450" },
671	+	{ 0xffffffff, 0x80000201, "7450" },
672	+	{ 0xffff0000, 0x80000000, "7450" },
673	+	{ 0xffffff00, 0x80010100, "7455" },
674	+	{ 0xffffffff, 0x80010200, "7455" },
675	+	{ 0xffff0000, 0x80010000, "7455" },
676	+	{ 0xffff0000, 0x80020000, "7457" },
677	+	{ 0xffff0000, 0x80030000, "7447A" },
678	+	{ 0xffff0000, 0x80040000, "7448" },
679	+	{ 0x7fff0000, 0x00810000, "82xx" },
680	+	{ 0x7fff0000, 0x00820000, "8280" },
681	+	{ 0xffff0000, 0x00400000, "Power3 (630)" },
682	+	{ 0xffff0000, 0x00410000, "Power3 (630+)" },
683	+	{ 0xffff0000, 0x00360000, "I-star" },
684	+	{ 0xffff0000, 0x00370000, "S-star" },
685	+	{ 0xffff0000, 0x00350000, "Power4" },
686	+	{ 0xffff0000, 0x00390000, "PPC970" },
687	+	{ 0xffff0000, 0x003c0000, "PPC970FX" },
688	+	{ 0xffff0000, 0x00440000, "PPC970MP" },
689	+	{ 0xffff0000, 0x003a0000, "POWER5 (gr)" },
690	+	{ 0xffff0000, 0x003b0000, "POWER5+ (gs)" },
691	+	{ 0xffff0000, 0x003e0000, "POWER6" },
692	+	{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
693	+	{ 0x7fff0000, 0x00900000, "PA6T" },
694	+	{ 0, 0, 0 }
695	+	};
696	+
697		char line[256];
698		while(fgets(line, 255, proc_file)) {
699		// Read line
#	Line 388 | Line 704 | int main(int argc, char **argv)
704
705		// Parse line
706		int i;
707	+	float f;
708		char value[256];
709	<	if (sscanf(line, "cpu : %s", value) == 1) {
710	<	if (strcmp(value, "601") == 0)
711	<	PVR = 0x00010000;
712	<	else if (strcmp(value, "603") == 0)
713	<	PVR = 0x00030000;
714	<	else if (strcmp(value, "604") == 0)
715	<	PVR = 0x00040000;
716	<	else if (strcmp(value, "603e") == 0)
717	<	PVR = 0x00060000;
718	<	else if (strcmp(value, "603ev") == 0)
719	<	PVR = 0x00070000;
403	<	else if (strcmp(value, "604e") == 0)
404	<	PVR = 0x00090000;
405	<	else if (strcmp(value, "604ev5") == 0)
406	<	PVR = 0x000a0000;
407	<	else if (strcmp(value, "750") == 0)
408	<	PVR = 0x00080000;
409	<	else if (strcmp(value, "821") == 0)
410	<	PVR = 0x00320000;
411	<	else if (strcmp(value, "860") == 0)
412	<	PVR = 0x00500000;
413	<	else
709	>	if (sscanf(line, "cpu : %[^,]", value) == 1) {
710	>	// Search by name
711	>	const char *cpu_name = NULL;
712	>	for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
713	>	if (strcmp(cpu_specs[i].cpu_name, value) == 0) {
714	>	cpu_name = cpu_specs[i].cpu_name;
715	>	PVR = cpu_specs[i].pvr_value;
716	>	break;
717	>	}
718	>	}
719	>	if (cpu_name == NULL)
720		printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
721	+	else
722	+	printf("Found a PowerPC %s processor\n", cpu_name);
723		}
724	<	if (sscanf(line, "clock : %dMHz", &i) == 1)
724	>	if (sscanf(line, "clock : %fMHz", &f) == 1)
725	>	CPUClockSpeed = BusClockSpeed = ((int64)f) * 1000000;
726	>	else if (sscanf(line, "clock : %dMHz", &i) == 1)
727		CPUClockSpeed = BusClockSpeed = i * 1000000;
728		}
729		fclose(proc_file);
#	Line 421 | Line 731 | int main(int argc, char **argv)
731		sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
732		WarningAlert(str);
733		}
734	+
735	+	// Get actual bus frequency
736	+	proc_file = fopen("/proc/device-tree/clock-frequency", "r");
737	+	if (proc_file) {
738	+	union { uint8 b[4]; uint32 l; } value;
739	+	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
740	+	BusClockSpeed = value.l;
741	+	fclose(proc_file);
742	+	}
743	+
744	+	// Get actual timebase frequency
745	+	TimebaseSpeed = BusClockSpeed / 4;
746	+	DIR *cpus_dir;
747	+	if ((cpus_dir = opendir("/proc/device-tree/cpus")) != NULL) {
748	+	struct dirent *cpu_entry;
749	+	while ((cpu_entry = readdir(cpus_dir)) != NULL) {
750	+	if (strstr(cpu_entry->d_name, "PowerPC,") == cpu_entry->d_name) {
751	+	char timebase_freq_node[256];
752	+	sprintf(timebase_freq_node, "/proc/device-tree/cpus/%s/timebase-frequency", cpu_entry->d_name);
753	+	proc_file = fopen(timebase_freq_node, "r");
754	+	if (proc_file) {
755	+	union { uint8 b[4]; uint32 l; } value;
756	+	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
757	+	TimebaseSpeed = value.l;
758	+	fclose(proc_file);
759	+	}
760	+	}
761	+	}
762	+	closedir(cpus_dir);
763	+	}
764		#endif
765	+	// Remap any newer G4/G5 processor to plain G4 for compatibility
766	+	switch (PVR >> 16) {
767	+	case 0x8000:                            // 7450
768	+	case 0x8001:                            // 7455
769	+	case 0x8002:                            // 7457
770	+	case 0x8003:                            // 7447A
771	+	case 0x8004:                            // 7448
772	+	case 0x0039:                            //  970
773	+	case 0x003c:                            //  970FX
774	+	case 0x0044:                            //  970MP
775	+	PVR = 0x000c0000;               // 7400
776	+	break;
777	+	}
778		D(bug("PVR: %08x (assumed)\n", PVR));
779
780		// Init system routines
#	Line 445 | Line 798 | int main(int argc, char **argv)
798		goto quit;
799		}
800
448	–	// Create Low Memory area (0x0000..0x3000)
449	–	if (vm_acquire_fixed((char *)0, 0x3000) < 0) {
450	–	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
451	–	ErrorAlert(str);
452	–	goto quit;
453	–	}
454	–	lm_area_mapped = true;
455	–
801		// Create areas for Kernel Data
802	<	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
803	<	if (kernel_area == -1) {
804	<	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
802	>	if (!kernel_data_init())
803	>	goto quit;
804	>	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
805	>	emulator_data = &kernel_data->ed;
806	>	KernelDataAddr = KERNEL_DATA_BASE;
807	>	D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE));
808	>	D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
809	>
810	>	// Create area for DR Cache
811	>	if (vm_mac_acquire_fixed(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
812	>	sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
813		ErrorAlert(str);
814		goto quit;
815		}
816	<	if (shmat(kernel_area, (void *)KERNEL_DATA_BASE, 0) < 0) {
817	<	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
816	>	dr_emulator_area_mapped = true;
817	>	if (vm_mac_acquire_fixed(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
818	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
819		ErrorAlert(str);
820		goto quit;
821		}
822	<	if (shmat(kernel_area, (void *)KERNEL_DATA2_BASE, 0) < 0) {
823	<	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
822	>	dr_cache_area_mapped = true;
823	>	#if !EMULATED_PPC
824	>	if (vm_protect((char *)DR_CACHE_BASE, DR_CACHE_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
825	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
826		ErrorAlert(str);
827		goto quit;
828		}
829	<	kernel_data = (KernelData *)0x68ffe000;
830	<	emulator_data = &kernel_data->ed;
831	<	KernelDataAddr = (uint32)kernel_data;
476	<	D(bug("Kernel Data at %p, Emulator Data at %p\n", kernel_data, emulator_data));
829	>	#endif
830	>	DRCacheAddr = DR_CACHE_BASE;
831	>	D(bug("DR Cache at %p\n", DRCacheAddr));
832
833		// Create area for SheepShaver data
834	<	if (vm_acquire_fixed((char *)SHEEP_BASE, SHEEP_SIZE) < 0) {
834	>	if (!SheepMem::Init()) {
835		sprintf(str, GetString(STR_SHEEP_MEM_MMAP_ERR), strerror(errno));
836		ErrorAlert(str);
837		goto quit;
838		}
839	<	SheepStack1Base = SHEEP_BASE + 0x10000;
485	<	SheepStack2Base = SheepStack1Base + 0x10000;
486	<	SheepThunksBase = SheepStack2Base + 0x1000;
487	<	sheep_area_mapped = true;
488	<
489	<	// Create area for Mac ROM
490	<	if (vm_acquire_fixed((char *)ROM_BASE, ROM_AREA_SIZE) < 0) {
491	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
492	<	ErrorAlert(str);
493	<	goto quit;
494	<	}
495	<	#if !EMULATED_PPC || defined(__powerpc__)
496	<	if (vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
497	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
498	<	ErrorAlert(str);
499	<	goto quit;
500	<	}
501	<	#endif
502	<	rom_area_mapped = true;
503	<	D(bug("ROM area at %08x\n", ROM_BASE));
504	<
839	>
840		// Create area for Mac RAM
841		RAMSize = PrefsFindInt32("ramsize");
842		if (RAMSize < 8*1024*1024) {
843		WarningAlert(GetString(STR_SMALL_RAM_WARN));
844		RAMSize = 8*1024*1024;
845		}
846	<
847	<	if (vm_acquire_fixed((char *)RAM_BASE, RAMSize) < 0) {
846	>	memory_mapped_from_zero = false;
847	>	ram_rom_areas_contiguous = false;
848	>	#if REAL_ADDRESSING && HAVE_LINKER_SCRIPT
849	>	if (vm_mac_acquire_fixed(0, RAMSize) == 0) {
850	>	D(bug("Could allocate RAM from 0x0000\n"));
851	>	RAMBase = 0;
852	>	RAMBaseHost = Mac2HostAddr(RAMBase);
853	>	memory_mapped_from_zero = true;
854	>	}
855	>	#endif
856	>	if (!memory_mapped_from_zero) {
857	>	#ifndef PAGEZERO_HACK
858	>	// Create Low Memory area (0x0000..0x3000)
859	>	if (vm_mac_acquire_fixed(0, 0x3000) < 0) {
860	>	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
861	>	ErrorAlert(str);
862	>	goto quit;
863	>	}
864	>	lm_area_mapped = true;
865	>	#endif
866	>	#if REAL_ADDRESSING
867	>	// Allocate RAM at any address. Since ROM must be higher than RAM, allocate the RAM
868	>	// and ROM areas contiguously, plus a little extra to allow for ROM address alignment.
869	>	RAMBaseHost = vm_mac_acquire(RAMSize + ROM_AREA_SIZE + ROM_ALIGNMENT);
870	>	if (RAMBaseHost == VM_MAP_FAILED) {
871	>	sprintf(str, GetString(STR_RAM_ROM_MMAP_ERR), strerror(errno));
872	>	ErrorAlert(str);
873	>	goto quit;
874	>	}
875	>	RAMBase = Host2MacAddr(RAMBaseHost);
876	>	ROMBase = (RAMBase + RAMSize + ROM_ALIGNMENT -1) & -ROM_ALIGNMENT;
877	>	ROMBaseHost = Mac2HostAddr(ROMBase);
878	>	ram_rom_areas_contiguous = true;
879	>	#else
880	>	if (vm_mac_acquire_fixed(RAM_BASE, RAMSize) < 0) {
881	>	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
882	>	ErrorAlert(str);
883	>	goto quit;
884	>	}
885	>	RAMBase = RAM_BASE;
886	>	RAMBaseHost = Mac2HostAddr(RAMBase);
887	>	#endif
888	>	}
889	>	#if !EMULATED_PPC
890	>	if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
891		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
892		ErrorAlert(str);
893		goto quit;
894		}
895	+	#endif
896	+	ram_area_mapped = true;
897	+	D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
898	+
899	+	if (RAMBase > KernelDataAddr) {
900	+	ErrorAlert(GetString(STR_RAM_AREA_TOO_HIGH_ERR));
901	+	goto quit;
902	+	}
903	+
904	+	// Create area for Mac ROM
905	+	if (!ram_rom_areas_contiguous) {
906	+	if (vm_mac_acquire_fixed(ROM_BASE, ROM_AREA_SIZE) < 0) {
907	+	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
908	+	ErrorAlert(str);
909	+	goto quit;
910	+	}
911	+	ROMBase = ROM_BASE;
912	+	ROMBaseHost = Mac2HostAddr(ROMBase);
913	+	}
914		#if !EMULATED_PPC
915	<	if (vm_protect((char *)RAM_BASE, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
916	<	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
915	>	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
916	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
917		ErrorAlert(str);
918		goto quit;
919		}
920		#endif
921	<	RAMBase = RAM_BASE;
922	<	ram_area_mapped = true;
526	<	D(bug("RAM area at %08x\n", RAMBase));
921	>	rom_area_mapped = true;
922	>	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROMBase));
923
924	<	if (RAMBase > ROM_BASE) {
924	>	if (RAMBase > ROMBase) {
925		ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
926		goto quit;
927		}
928
929		// Load Mac ROM
930		rom_path = PrefsFindString("rom");
931	<	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
931	>	rom_fd = open(rom_path && *rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
932		if (rom_fd < 0) {
933	<	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME2, O_RDONLY);
933	>	rom_fd = open(ROM_FILE_NAME2, O_RDONLY);
934		if (rom_fd < 0) {
935		ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
936		goto quit;
937		}
938		}
939	<	printf(GetString(STR_READING_ROM_FILE));
939	>	printf("%s", GetString(STR_READING_ROM_FILE));
940		rom_size = lseek(rom_fd, 0, SEEK_END);
941		lseek(rom_fd, 0, SEEK_SET);
942		rom_tmp = new uint8[ROM_SIZE];
#	Line 559 | Line 955 | int main(int argc, char **argv)
955		}
956		delete[] rom_tmp;
957
958	<	// Load NVRAM
959	<	XPRAMInit();
564	<
565	<	// Set boot volume
566	<	i16 = PrefsFindInt32("bootdrive");
567	<	XPRAM[0x1378] = i16 >> 8;
568	<	XPRAM[0x1379] = i16 & 0xff;
569	<	i16 = PrefsFindInt32("bootdriver");
570	<	XPRAM[0x137a] = i16 >> 8;
571	<	XPRAM[0x137b] = i16 & 0xff;
572	<
573	<	// Create BootGlobs at top of Mac memory
574	<	memset((void *)(RAMBase + RAMSize - 4096), 0, 4096);
575	<	BootGlobsAddr = RAMBase + RAMSize - 0x1c;
576	<	boot_globs = (uint32 *)BootGlobsAddr;
577	<	boot_globs[-5] = htonl(RAMBase + RAMSize);      // MemTop
578	<	boot_globs[0] = htonl(RAMBase);                         // First RAM bank
579	<	boot_globs[1] = htonl(RAMSize);
580	<	boot_globs[2] = htonl((uint32)-1);                      // End of bank table
581	<
582	<	// Init drivers
583	<	SonyInit();
584	<	DiskInit();
585	<	CDROMInit();
586	<	SCSIInit();
587	<
588	<	// Init external file system
589	<	ExtFSInit();
590	<
591	<	// Init audio
592	<	AudioInit();
593	<
594	<	// Init network
595	<	EtherInit();
596	<
597	<	// Init serial ports
598	<	SerialInit();
599	<
600	<	// Init Time Manager
601	<	TimerInit();
602	<
603	<	// Init clipboard
604	<	ClipInit();
605	<
606	<	// Init video
607	<	if (!VideoInit())
608	<	goto quit;
609	<
610	<	// Install ROM patches
611	<	if (!PatchROM()) {
612	<	ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
958	>	// Initialize everything
959	>	if (!InitAll(vmdir))
960		goto quit;
961	<	}
961	>	D(bug("Initialization complete\n"));
962
963		// Clear caches (as we loaded and patched code) and write protect ROM
964		#if !EMULATED_PPC
965	<	MakeExecutable(0, (void *)ROM_BASE, ROM_AREA_SIZE);
619	<	#endif
620	<	vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
621	<
622	<	// Initialize Kernel Data
623	<	memset(kernel_data, 0, sizeof(KernelData));
624	<	if (ROMType == ROMTYPE_NEWWORLD) {
625	<	static uint32 of_dev_tree[4] = {0, 0, 0, 0};
626	<	static uint8 vector_lookup_tbl[128];
627	<	static uint8 vector_mask_tbl[64];
628	<	memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
629	<	memset(vector_lookup_tbl, 0, 128);
630	<	memset(vector_mask_tbl, 0, 64);
631	<	kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
632	<	kernel_data->v[0xb84 >> 2] = htonl((uint32)of_dev_tree);        // OF device tree base
633	<	kernel_data->v[0xb90 >> 2] = htonl((uint32)vector_lookup_tbl);
634	<	kernel_data->v[0xb94 >> 2] = htonl((uint32)vector_mask_tbl);
635	<	kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE);                           // OpenPIC base
636	<	kernel_data->v[0xbb0 >> 2] = htonl(0);                                          // ADB base
637	<	kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
638	<	kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
639	<	kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
640	<	kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
641	<	kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
642	<	kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
643	<	kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
644	<	kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
645	<	kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
646	<	kernel_data->v[0xf60 >> 2] = htonl(PVR);
647	<	kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed);
648	<	kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed);
649	<	kernel_data->v[0xf6c >> 2] = htonl(CPUClockSpeed);
650	<	} else {
651	<	kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
652	<	kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
653	<	kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
654	<	kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
655	<	kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
656	<	kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
657	<	kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
658	<	kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
659	<	kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
660	<	kernel_data->v[0xf80 >> 2] = htonl(PVR);
661	<	kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed);
662	<	kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed);
663	<	kernel_data->v[0xf8c >> 2] = htonl(CPUClockSpeed);
664	<	}
665	<
666	<	// Initialize extra low memory
667	<	D(bug("Initializing Low Memory...\n"));
668	<	memset(NULL, 0, 0x3000);
669	<	WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h'));                  // Signature to detect SheepShaver
670	<	WriteMacInt32(XLM_KERNEL_DATA, (uint32)kernel_data);                    // For trap replacement routines
671	<	WriteMacInt32(XLM_PVR, PVR);                                                                    // Theoretical PVR
672	<	WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed);                                    // For DriverServicesLib patch
673	<	WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN);                // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
674	<	#if EMULATED_PPC
675	<	WriteMacInt32(XLM_ETHER_INIT, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_INIT));
676	<	WriteMacInt32(XLM_ETHER_TERM, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_TERM));
677	<	WriteMacInt32(XLM_ETHER_OPEN, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_OPEN));
678	<	WriteMacInt32(XLM_ETHER_CLOSE, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_CLOSE));
679	<	WriteMacInt32(XLM_ETHER_WPUT, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_WPUT));
680	<	WriteMacInt32(XLM_ETHER_RSRV, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_RSRV));
681	<	WriteMacInt32(XLM_VIDEO_DOIO, POWERPC_NATIVE_OP_FUNC(NATIVE_VIDEO_DO_DRIVER_IO));
682	<	#else
683	<	WriteMacInt32(XLM_TOC, (uint32)TOC);                                                    // TOC pointer of emulator
684	<	WriteMacInt32(XLM_ETHER_INIT, (uint32)InitStreamModule);                // DLPI ethernet driver functions
685	<	WriteMacInt32(XLM_ETHER_TERM, (uint32)TerminateStreamModule);
686	<	WriteMacInt32(XLM_ETHER_OPEN, (uint32)ether_open);
687	<	WriteMacInt32(XLM_ETHER_CLOSE, (uint32)ether_close);
688	<	WriteMacInt32(XLM_ETHER_WPUT, (uint32)ether_wput);
689	<	WriteMacInt32(XLM_ETHER_RSRV, (uint32)ether_rsrv);
690	<	WriteMacInt32(XLM_VIDEO_DOIO, (uint32)VideoDoDriverIO);
965	>	flush_icache_range(ROMBase, ROMBase + ROM_AREA_SIZE);
966		#endif
967	<	D(bug("Low Memory initialized\n"));
967	>	vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
968
969		// Start 60Hz thread
970	+	tick_thread_cancel = false;
971		tick_thread_active = (pthread_create(&tick_thread, NULL, tick_func, NULL) == 0);
972		D(bug("Tick thread installed (%ld)\n", tick_thread));
973
974		// Start NVRAM watchdog thread
975		memcpy(last_xpram, XPRAM, XPRAM_SIZE);
976	+	nvram_thread_cancel = false;
977		nvram_thread_active = (pthread_create(&nvram_thread, NULL, nvram_func, NULL) == 0);
978		D(bug("NVRAM thread installed (%ld)\n", nvram_thread));
979
980		#if !EMULATED_PPC
704	–	// Create and install stacks for signal handlers
705	–	sig_stack = malloc(SIG_STACK_SIZE);
706	–	D(bug("Signal stack at %p\n", sig_stack));
707	–	if (sig_stack == NULL) {
708	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
709	–	goto quit;
710	–	}
711	–	extra_stack = malloc(SIG_STACK_SIZE);
712	–	D(bug("Extra stack at %p\n", extra_stack));
713	–	if (extra_stack == NULL) {
714	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
715	–	goto quit;
716	–	}
717	–	struct sigaltstack new_stack;
718	–	new_stack.ss_sp = sig_stack;
719	–	new_stack.ss_flags = 0;
720	–	new_stack.ss_size = SIG_STACK_SIZE;
721	–	if (sigaltstack(&new_stack, NULL) < 0) {
722	–	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
723	–	ErrorAlert(str);
724	–	goto quit;
725	–	}
726	–	#endif
727	–
728	–	#if !EMULATED_PPC
729	–	// Install SIGSEGV handler
730	–	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
731	–	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
732	–	sigsegv_action.sa_handler = (__sighandler_t)sigsegv_handler;
733	–	sigsegv_action.sa_flags = SA_ONSTACK;
734	–	sigsegv_action.sa_restorer = NULL;
735	–	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
736	–	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
737	–	ErrorAlert(str);
738	–	goto quit;
739	–	}
740	–
981		// Install SIGILL handler
982		sigemptyset(&sigill_action.sa_mask);    // Block interrupts during ILL handling
983		sigaddset(&sigill_action.sa_mask, SIGUSR2);
984	<	sigill_action.sa_handler = (__sighandler_t)sigill_handler;
985	<	sigill_action.sa_flags = SA_ONSTACK;
984	>	sigill_action.sa_sigaction = sigill_handler;
985	>	sigill_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
986	>	#ifdef HAVE_SIGNAL_SA_RESTORER
987		sigill_action.sa_restorer = NULL;
988	+	#endif
989		if (sigaction(SIGILL, &sigill_action, NULL) < 0) {
990	<	sprintf(str, GetString(STR_SIGILL_INSTALL_ERR), strerror(errno));
990	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGILL", strerror(errno));
991		ErrorAlert(str);
992		goto quit;
993		}
994		#endif
995
996	+	#if !EMULATED_PPC
997		// Install interrupt signal handler
998		sigemptyset(&sigusr2_action.sa_mask);
999	<	sigusr2_action.sa_handler = (__sighandler_t)sigusr2_handler;
1000	<	sigusr2_action.sa_flags = 0;
1001	<	#if !EMULATED_PPC
759	<	sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART;
760	<	#endif
999	>	sigusr2_action.sa_sigaction = sigusr2_handler_init;
1000	>	sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART | SA_SIGINFO;
1001	>	#ifdef HAVE_SIGNAL_SA_RESTORER
1002		sigusr2_action.sa_restorer = NULL;
1003	+	#endif
1004		if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
1005	<	sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
1005	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGUSR2", strerror(errno));
1006		ErrorAlert(str);
1007		goto quit;
1008		}
1009	+	#endif
1010
1011		// Get my thread ID and execute MacOS thread function
1012		emul_thread = pthread_self();
#	Line 789 | Line 1032 | static void Quit(void)
1032
1033		// Stop 60Hz thread
1034		if (tick_thread_active) {
1035	+	tick_thread_cancel = true;
1036		pthread_cancel(tick_thread);
1037		pthread_join(tick_thread, NULL);
1038		}
1039
1040		// Stop NVRAM watchdog thread
1041		if (nvram_thread_active) {
1042	+	nvram_thread_cancel = true;
1043		pthread_cancel(nvram_thread);
1044		pthread_join(nvram_thread, NULL);
1045		}
1046
1047		#if !EMULATED_PPC
1048	<	// Uninstall SIGSEGV handler
1048	>	// Uninstall SIGSEGV and SIGBUS handlers
1049		sigemptyset(&sigsegv_action.sa_mask);
1050		sigsegv_action.sa_handler = SIG_DFL;
1051		sigsegv_action.sa_flags = 0;
1052		sigaction(SIGSEGV, &sigsegv_action, NULL);
1053	+	sigaction(SIGBUS, &sigsegv_action, NULL);
1054
1055		// Uninstall SIGILL handler
1056		sigemptyset(&sigill_action.sa_mask);
1057		sigill_action.sa_handler = SIG_DFL;
1058		sigill_action.sa_flags = 0;
1059		sigaction(SIGILL, &sigill_action, NULL);
814	–	#endif
815	–
816	–	// Save NVRAM
817	–	XPRAMExit();
1060
1061	<	// Exit clipboard
1062	<	ClipExit();
1063	<
1064	<	// Exit Time Manager
1065	<	TimerExit();
1066	<
825	<	// Exit serial
826	<	SerialExit();
827	<
828	<	// Exit network
829	<	EtherExit();
830	<
831	<	// Exit audio
832	<	AudioExit();
833	<
834	<	// Exit video
835	<	VideoExit();
1061	>	// Delete stacks for signal handlers
1062	>	if (sig_stack.ss_sp)
1063	>	free(sig_stack.ss_sp);
1064	>	if (extra_stack.ss_sp)
1065	>	free(extra_stack.ss_sp);
1066	>	#endif
1067
1068	<	// Exit external file system
1069	<	ExtFSExit();
1068	>	// Deinitialize everything
1069	>	ExitAll();
1070
1071	<	// Exit drivers
1072	<	SCSIExit();
842	<	CDROMExit();
843	<	DiskExit();
844	<	SonyExit();
1071	>	// Delete SheepShaver globals
1072	>	SheepMem::Exit();
1073
1074		// Delete RAM area
1075		if (ram_area_mapped)
1076	<	vm_release((char *)RAM_BASE, RAMSize);
1076	>	vm_mac_release(RAMBase, RAMSize);
1077
1078		// Delete ROM area
1079		if (rom_area_mapped)
1080	<	vm_release((char *)ROM_BASE, ROM_AREA_SIZE);
1080	>	vm_mac_release(ROMBase, ROM_AREA_SIZE);
1081	>
1082	>	// Delete DR cache areas
1083	>	if (dr_emulator_area_mapped)
1084	>	vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
1085	>	if (dr_cache_area_mapped)
1086	>	vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE);
1087
1088		// Delete Kernel Data area
1089	<	if (kernel_area >= 0) {
856	<	shmdt((void *)KERNEL_DATA_BASE);
857	<	shmdt((void *)KERNEL_DATA2_BASE);
858	<	shmctl(kernel_area, IPC_RMID, NULL);
859	<	}
1089	>	kernel_data_exit();
1090
1091		// Delete Low Memory area
1092		if (lm_area_mapped)
1093	<	munmap((char *)0x0000, 0x3000);
1093	>	vm_mac_release(0, 0x3000);
1094
1095		// Close /dev/zero
1096		if (zero_fd > 0)
#	Line 878 | Line 1108 | static void Quit(void)
1108		#endif
1109
1110		// Close X11 server connection
1111	+	#ifndef USE_SDL_VIDEO
1112		if (x_display)
1113		XCloseDisplay(x_display);
1114	+	#endif
1115	+
1116	+	// Notify GUI we are about to leave
1117	+	if (gui_connection) {
1118	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_EXIT, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
1119	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID);
1120	+	}
1121
1122		exit(0);
1123		}
1124
1125
1126		/*
1127	+	*  Initialize Kernel Data segments
1128	+	*/
1129	+
1130	+	static bool kernel_data_init(void)
1131	+	{
1132	+	char str[256];
1133	+	uint32 kernel_area_size = (KERNEL_AREA_SIZE + SHMLBA - 1) & -SHMLBA;
1134	+
1135	+	kernel_area = shmget(IPC_PRIVATE, kernel_area_size, 0600);
1136	+	if (kernel_area == -1) {
1137	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
1138	+	ErrorAlert(str);
1139	+	return false;
1140	+	}
1141	+	void *kernel_addr = Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA);
1142	+	if (shmat(kernel_area, kernel_addr, 0) != kernel_addr) {
1143	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
1144	+	ErrorAlert(str);
1145	+	return false;
1146	+	}
1147	+	kernel_addr = Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA);
1148	+	if (shmat(kernel_area, kernel_addr, 0) != kernel_addr) {
1149	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
1150	+	ErrorAlert(str);
1151	+	return false;
1152	+	}
1153	+	return true;
1154	+	}
1155	+
1156	+
1157	+	/*
1158	+	*  Deallocate Kernel Data segments
1159	+	*/
1160	+
1161	+	static void kernel_data_exit(void)
1162	+	{
1163	+	if (kernel_area >= 0) {
1164	+	shmdt(Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA));
1165	+	shmdt(Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA));
1166	+	shmctl(kernel_area, IPC_RMID, NULL);
1167	+	}
1168	+	}
1169	+
1170	+
1171	+	/*
1172		*  Jump into Mac ROM, start 680x0 emulator
1173		*/
1174
#	Line 913 | Line 1196 | static void *emul_func(void *arg)
1196		// Jump to ROM boot routine
1197		D(bug("Jumping to ROM\n"));
1198		#if EMULATED_PPC
1199	<	jump_to_rom(ROM_BASE + 0x310000);
1199	>	jump_to_rom(ROMBase + 0x310000);
1200		#else
1201	<	jump_to_rom(ROM_BASE + 0x310000, (uint32)emulator_data);
1201	>	jump_to_rom(ROMBase + 0x310000, (uint32)emulator_data);
1202		#endif
1203		D(bug("Returned from ROM\n"));
1204
#	Line 954 | Line 1237 | void Execute68kTrap(uint16 trap, M68kReg
1237		uint16 proc[2] = {trap, M68K_RTS};
1238		Execute68k((uint32)proc, r);
1239		}
957	–
958	–
959	–	/*
960	–	*  Execute PPC code from EMUL_OP routine (real mode switch)
961	–	*/
962	–
963	–	void ExecutePPC(void (*func)())
964	–	{
965	–	uint32 tvect[2] = {(uint32)func, 0};    // Fake TVECT
966	–	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
967	–	M68kRegisters r;
968	–	Execute68k((uint32)&desc, &r);
969	–	}
1240		#endif
1241
1242
#	Line 985 | Line 1255 | void QuitEmulator(void)
1255
1256
1257		/*
988	–	*  Pause/resume emulator
989	–	*/
990	–
991	–	void PauseEmulator(void)
992	–	{
993	–	pthread_kill(emul_thread, SIGSTOP);
994	–	}
995	–
996	–	void ResumeEmulator(void)
997	–	{
998	–	pthread_kill(emul_thread, SIGCONT);
999	–	}
1000	–
1001	–
1002	–	/*
1258		*  Dump 68k registers
1259		*/
1260
#	Line 1027 | Line 1282 | void Dump68kRegs(M68kRegisters *r)
1282		*  Make code executable
1283		*/
1284
1285	<	void MakeExecutable(int dummy, void *start, uint32 length)
1285	>	void MakeExecutable(int dummy, uint32 start, uint32 length)
1286		{
1287	<	if (((uintptr)start >= ROM_BASE) && ((uintptr)start < (ROM_BASE + ROM_SIZE)))
1287	>	if ((start >= ROMBase) && (start < (ROMBase + ROM_SIZE)))
1288		return;
1289		#if EMULATED_PPC
1290	<	FlushCodeCache((uintptr)start, (uintptr)start + length);
1290	>	FlushCodeCache(start, start + length);
1291		#else
1292	<	flush_icache_range(start, (void *)((uintptr)start + length));
1292	>	flush_icache_range(start, start + length);
1293		#endif
1294		}
1295
1296
1297		/*
1298	<	*  Patch things after system startup (gets called by disk driver accRun routine)
1298	>	*  NVRAM watchdog thread (saves NVRAM every minute)
1299		*/
1300
1301	<	void PatchAfterStartup(void)
1301	>	static void nvram_watchdog(void)
1302		{
1303	<	#if EMULATED_PPC
1304	<	ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL);
1305	<	#else
1306	<	ExecutePPC(VideoInstallAccel);
1052	<	#endif
1053	<	InstallExtFS();
1303	>	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1304	>	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1305	>	SaveXPRAM();
1306	>	}
1307		}
1308
1056	–
1057	–	/*
1058	–	*  NVRAM watchdog thread (saves NVRAM every minute)
1059	–	*/
1060	–
1309		static void *nvram_func(void *arg)
1310		{
1311	<	struct timespec req = {60, 0};  // 1 minute
1312	<
1313	<	for (;;) {
1314	<	pthread_testcancel();
1067	<	nanosleep(&req, NULL);
1068	<	pthread_testcancel();
1069	<	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1070	<	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1071	<	SaveXPRAM();
1072	<	}
1311	>	while (!nvram_thread_cancel) {
1312	>	for (int i=0; i<60 && !nvram_thread_cancel; i++)
1313	>	Delay_usec(999999);             // Only wait 1 second so we quit promptly when nvram_thread_cancel becomes true
1314	>	nvram_watchdog();
1315		}
1316		return NULL;
1317		}
#	Line 1082 | Line 1324 | static void *nvram_func(void *arg)
1324		static void *tick_func(void *arg)
1325		{
1326		int tick_counter = 0;
1327	<	struct timespec req = {0, 16625000};
1327	>	uint64 start = GetTicks_usec();
1328	>	int64 ticks = 0;
1329	>	uint64 next = GetTicks_usec();
1330
1331	<	for (;;) {
1331	>	while (!tick_thread_cancel) {
1332
1333		// Wait
1334	<	nanosleep(&req, NULL);
1334	>	next += 16625;
1335	>	int64 delay = next - GetTicks_usec();
1336	>	if (delay > 0)
1337	>	Delay_usec(delay);
1338	>	else if (delay < -16625)
1339	>	next = GetTicks_usec();
1340	>	ticks++;
1341
1342		#if !EMULATED_PPC
1343		// Did we crash?
1344		if (emul_thread_fatal) {
1345
1346		// Yes, dump registers
1347	<	pt_regs *r = (pt_regs *)&sigsegv_regs;
1347	>	sigregs *r = &sigsegv_regs;
1348		char str[256];
1349	<	sprintf(str, "SIGSEGV\n"
1349	>	if (crash_reason == NULL)
1350	>	crash_reason = "SIGSEGV";
1351	>	sprintf(str, "%s\n"
1352		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1353		"  xer %08lx     cr %08lx  \n"
1354		"   r0 %08lx     r1 %08lx     r2 %08lx     r3 %08lx\n"
#	Line 1107 | Line 1359 | static void *tick_func(void *arg)
1359		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
1360		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
1361		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
1362	+	crash_reason,
1363		r->nip, r->link, r->ctr, r->msr,
1364		r->xer, r->ccr,
1365		r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
#	Line 1142 | Line 1395 | static void *tick_func(void *arg)
1395		TriggerInterrupt();
1396		}
1397		}
1398	+
1399	+	uint64 end = GetTicks_usec();
1400	+	D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1401		return NULL;
1402		}
1403
#	Line 1152 | Line 1408 | static void *tick_func(void *arg)
1408
1409		void Set_pthread_attr(pthread_attr_t *attr, int priority)
1410		{
1411	<	// nothing to do
1411	>	#ifdef HAVE_PTHREADS
1412	>	pthread_attr_init(attr);
1413	>	#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING)
1414	>	// Some of these only work for superuser
1415	>	if (geteuid() == 0) {
1416	>	pthread_attr_setinheritsched(attr, PTHREAD_EXPLICIT_SCHED);
1417	>	pthread_attr_setschedpolicy(attr, SCHED_FIFO);
1418	>	struct sched_param fifo_param;
1419	>	fifo_param.sched_priority = ((sched_get_priority_min(SCHED_FIFO) +
1420	>	sched_get_priority_max(SCHED_FIFO)) / 2 +
1421	>	priority);
1422	>	pthread_attr_setschedparam(attr, &fifo_param);
1423	>	}
1424	>	if (pthread_attr_setscope(attr, PTHREAD_SCOPE_SYSTEM) != 0) {
1425	>	#ifdef PTHREAD_SCOPE_BOUND_NP
1426	>	// If system scope is not available (eg. we're not running
1427	>	// with CAP_SCHED_MGT capability on an SGI box), try bound
1428	>	// scope.  It exposes pthread scheduling to the kernel,
1429	>	// without setting realtime priority.
1430	>	pthread_attr_setscope(attr, PTHREAD_SCOPE_BOUND_NP);
1431	>	#endif
1432	>	}
1433	>	#endif
1434	>	#endif
1435		}
1436
1437
#	Line 1168 | Line 1447 | struct B2_mutex {
1447		pthread_mutexattr_init(&attr);
1448		// Initialize the mutex for priority inheritance --
1449		// required for accurate timing.
1450	<	#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL
1450	>	#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
1451		pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
1452		#endif
1453		#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
#	Line 1239 | Line 1518 | void B2_delete_mutex(B2_mutex *mutex)
1518		*  Trigger signal USR2 from another thread
1519		*/
1520
1521	<	#if !EMULATED_PPC || ASYNC_IRQ
1521	>	#if !EMULATED_PPC
1522		void TriggerInterrupt(void)
1523		{
1524	<	if (ready_for_signals)
1524	>	if (ready_for_signals) {
1525	>	idle_resume();
1526		pthread_kill(emul_thread, SIGUSR2);
1527	+	}
1528		}
1529		#endif
1530
#	Line 1271 | Line 1552 | void ClearInterruptFlag(uint32 flag)
1552
1553		void DisableInterrupt(void)
1554		{
1555	+	#if EMULATED_PPC
1556	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) + 1);
1557	+	#else
1558		atomic_add((int *)XLM_IRQ_NEST, 1);
1559	+	#endif
1560		}
1561
1562
#	Line 1281 | Line 1566 | void DisableInterrupt(void)
1566
1567		void EnableInterrupt(void)
1568		{
1569	+	#if EMULATED_PPC
1570	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) - 1);
1571	+	#else
1572		atomic_add((int *)XLM_IRQ_NEST, -1);
1573	+	#endif
1574		}
1575
1576
#	Line 1289 | Line 1578 | void EnableInterrupt(void)
1578		*  USR2 handler
1579		*/
1580
1581	<	#if EMULATED_PPC
1582	<	static void sigusr2_handler(int sig)
1581	>	#if !EMULATED_PPC
1582	>	void sigusr2_handler(int sig, siginfo_t *sip, void *scp)
1583		{
1584	<	#if ASYNC_IRQ
1585	<	extern void HandleInterrupt(void);
1586	<	HandleInterrupt();
1584	>	machine_regs *r = MACHINE_REGISTERS(scp);
1585	>
1586	>	#ifdef SYSTEM_CLOBBERS_R2
1587	>	// Restore pointer to Thread Local Storage
1588	>	set_r2(TOC);
1589	>	#endif
1590	>	#ifdef SYSTEM_CLOBBERS_R13
1591	>	// Restore pointer to .sdata section
1592	>	set_r13(R13);
1593	>	#endif
1594	>
1595	>	#ifdef USE_SDL_VIDEO
1596	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1597	>	SDL_PumpEvents();
1598		#endif
1299	–	}
1300	–	#else
1301	–	static void sigusr2_handler(int sig, sigcontext_struct *sc)
1302	–	{
1303	–	pt_regs *r = sc->regs;
1599
1600		// Do nothing if interrupts are disabled
1601		if (*(int32 *)XLM_IRQ_NEST > 0)
#	Line 1314 | Line 1609 | static void sigusr2_handler(int sig, sig
1609		case MODE_68K:
1610		// 68k emulator active, trigger 68k interrupt level 1
1611		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1612	<	r->ccr |= ntohl(kernel_data->v[0x674 >> 2]);
1612	>	r->cr() |= ntohl(kernel_data->v[0x674 >> 2]);
1613		break;
1614
1615		#if INTERRUPTS_IN_NATIVE_MODE
1616		case MODE_NATIVE:
1617		// 68k emulator inactive, in nanokernel?
1618	<	if (r->gpr[1] != KernelDataAddr) {
1618	>	if (r->gpr(1) != KernelDataAddr) {
1619	>
1620	>	// Set extra stack for SIGSEGV handler
1621	>	sigaltstack(&extra_stack, NULL);
1622	>
1623		// Prepare for 68k interrupt level 1
1624		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1625		WriteMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc, ReadMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc) | ntohl(kernel_data->v[0x674 >> 2]));
1626
1627		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1628	<	atomic_add((int32 *)XLM_IRQ_NEST, 1);
1628	>	DisableInterrupt();
1629		if (ROMType == ROMTYPE_NEWWORLD)
1630	<	ppc_interrupt(ROM_BASE + 0x312b1c, KernelDataAddr);
1630	>	ppc_interrupt(ROMBase + 0x312b1c, KernelDataAddr);
1631		else
1632	<	ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1632	>	ppc_interrupt(ROMBase + 0x312a3c, KernelDataAddr);
1633	>
1634	>	// Reset normal stack
1635	>	sigaltstack(&sig_stack, NULL);
1636		}
1637		break;
1638		#endif
#	Line 1341 | Line 1643 | static void sigusr2_handler(int sig, sig
1643		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1644
1645		// Set extra stack for SIGSEGV handler
1646	<	struct sigaltstack new_stack;
1345	<	new_stack.ss_sp = extra_stack;
1346	<	new_stack.ss_flags = 0;
1347	<	new_stack.ss_size = SIG_STACK_SIZE;
1348	<	sigaltstack(&new_stack, NULL);
1646	>	sigaltstack(&extra_stack, NULL);
1647		#if 1
1648		// Execute full 68k interrupt routine
1649		M68kRegisters r;
#	Line 1367 | Line 1665 | static void sigusr2_handler(int sig, sig
1665		if (InterruptFlags & INTFLAG_VIA) {
1666		ClearInterruptFlag(INTFLAG_VIA);
1667		ADBInterrupt();
1668	<	ExecutePPC(VideoVBL);
1668	>	ExecuteNative(NATIVE_VIDEO_VBL);
1669		}
1670		}
1671		#endif
1672	<	// Reset normal signal stack
1673	<	new_stack.ss_sp = sig_stack;
1376	<	new_stack.ss_flags = 0;
1377	<	new_stack.ss_size = SIG_STACK_SIZE;
1378	<	sigaltstack(&new_stack, NULL);
1672	>	// Reset normal stack
1673	>	sigaltstack(&sig_stack, NULL);
1674		}
1675		break;
1676		#endif
#	Line 1389 | Line 1684 | static void sigusr2_handler(int sig, sig
1684		*/
1685
1686		#if !EMULATED_PPC
1687	<	static void sigsegv_handler(int sig, sigcontext_struct *sc)
1687	>	static void sigsegv_handler(int sig, siginfo_t *sip, void *scp)
1688		{
1689	<	pt_regs *r = sc->regs;
1689	>	machine_regs *r = MACHINE_REGISTERS(scp);
1690
1691		// Get effective address
1692	<	uint32 addr = r->dar;
1692	>	uint32 addr = r->dar();
1693
1694	+	#ifdef SYSTEM_CLOBBERS_R2
1695	+	// Restore pointer to Thread Local Storage
1696	+	set_r2(TOC);
1697	+	#endif
1698	+	#ifdef SYSTEM_CLOBBERS_R13
1699	+	// Restore pointer to .sdata section
1700	+	set_r13(R13);
1701	+	#endif
1702	+
1703		#if ENABLE_VOSF
1704	<	// Handle screen fault.
1705	<	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
1706	<	if (Screen_fault_handler((sigsegv_address_t)addr, (sigsegv_address_t)r->nip))
1704	>	// Handle screen fault
1705	>	#if SIGSEGV_CHECK_VERSION(1,0,0)
1706	>	sigsegv_info_t si;
1707	>	si.addr = (sigsegv_address_t)addr;
1708	>	si.pc = (sigsegv_address_t)r->pc();
1709	>	#endif
1710	>	extern bool Screen_fault_handler(sigsegv_info_t *sip);
1711	>	if (Screen_fault_handler(&si))
1712		return;
1713		#endif
1714
1715		num_segv++;
1716
1717	<	// Fault in Mac ROM or RAM?
1718	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1717	>	// Fault in Mac ROM or RAM or DR Cache?
1718	>	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));
1719		if (mac_fault) {
1720
1721		// "VM settings" during MacOS 8 installation
1722	<	if (r->nip == ROM_BASE + 0x488160 && r->gpr[20] == 0xf8000000) {
1723	<	r->nip += 4;
1724	<	r->gpr[8] = 0;
1722	>	if (r->pc() == ROMBase + 0x488160 && r->gpr(20) == 0xf8000000) {
1723	>	r->pc() += 4;
1724	>	r->gpr(8) = 0;
1725		return;
1726
1727		// MacOS 8.5 installation
1728	<	} else if (r->nip == ROM_BASE + 0x488140 && r->gpr[16] == 0xf8000000) {
1729	<	r->nip += 4;
1730	<	r->gpr[8] = 0;
1728	>	} else if (r->pc() == ROMBase + 0x488140 && r->gpr(16) == 0xf8000000) {
1729	>	r->pc() += 4;
1730	>	r->gpr(8) = 0;
1731		return;
1732
1733		// MacOS 8 serial drivers on startup
1734	<	} else if (r->nip == ROM_BASE + 0x48e080 && (r->gpr[8] == 0xf3012002 || r->gpr[8] == 0xf3012000)) {
1735	<	r->nip += 4;
1736	<	r->gpr[8] = 0;
1734	>	} else if (r->pc() == ROMBase + 0x48e080 && (r->gpr(8) == 0xf3012002 || r->gpr(8) == 0xf3012000)) {
1735	>	r->pc() += 4;
1736	>	r->gpr(8) = 0;
1737		return;
1738
1739		// MacOS 8.1 serial drivers on startup
1740	<	} else if (r->nip == ROM_BASE + 0x48c5e0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
1741	<	r->nip += 4;
1740	>	} else if (r->pc() == ROMBase + 0x48c5e0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1741	>	r->pc() += 4;
1742	>	return;
1743	>	} else if (r->pc() == ROMBase + 0x4a10a0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1744	>	r->pc() += 4;
1745	>	return;
1746	>
1747	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
1748	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(16) == 0xf3012002 || r->gpr(16) == 0xf3012000)) {
1749	>	r->pc() += 4;
1750		return;
1751	<	} else if (r->nip == ROM_BASE + 0x4a10a0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
1752	<	r->nip += 4;
1751	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1752	>	r->pc() += 4;
1753		return;
1754		}
1755
1756		// Get opcode and divide into fields
1757	<	uint32 opcode = *((uint32 *)r->nip);
1757	>	uint32 opcode = *((uint32 *)r->pc());
1758		uint32 primop = opcode >> 26;
1759		uint32 exop = (opcode >> 1) & 0x3ff;
1760		uint32 ra = (opcode >> 16) & 0x1f;
#	Line 1526 | Line 1843 | static void sigsegv_handler(int sig, sig
1843		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_NORM; break;
1844		case 45:        // sthu
1845		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
1846	+	#if EMULATE_UNALIGNED_LOADSTORE_MULTIPLE
1847	+	case 46:        // lmw
1848	+	if ((addr % 4) != 0) {
1849	+	uint32 ea = addr;
1850	+	D(bug("WARNING: unaligned lmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1851	+	for (int i = rd; i <= 31; i++) {
1852	+	r->gpr(i) = ReadMacInt32(ea);
1853	+	ea += 4;
1854	+	}
1855	+	r->pc() += 4;
1856	+	goto rti;
1857	+	}
1858	+	break;
1859	+	case 47:        // stmw
1860	+	if ((addr % 4) != 0) {
1861	+	uint32 ea = addr;
1862	+	D(bug("WARNING: unaligned stmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1863	+	for (int i = rd; i <= 31; i++) {
1864	+	WriteMacInt32(ea, r->gpr(i));
1865	+	ea += 4;
1866	+	}
1867	+	r->pc() += 4;
1868	+	goto rti;
1869	+	}
1870	+	break;
1871	+	#endif
1872		}
1873
1874	<	// Ignore ROM writes
1875	<	if (transfer_type == TYPE_STORE && addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
1876	<	//                      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->nip));
1874	>	// Ignore ROM writes (including to the zero page, which is read-only)
1875	>	if (transfer_type == TYPE_STORE &&
1876	>	((addr >= ROMBase && addr < ROMBase + ROM_SIZE) ||
1877	>	(addr >= SheepMem::ZeroPage() && addr < SheepMem::ZeroPage() + SheepMem::PageSize()))) {
1878	>	//                      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()));
1879		if (addr_mode == MODE_U || addr_mode == MODE_UX)
1880	<	r->gpr[ra] = addr;
1881	<	r->nip += 4;
1880	>	r->gpr(ra) = addr;
1881	>	r->pc() += 4;
1882		goto rti;
1883		}
1884
1885		// Ignore illegal memory accesses?
1886		if (PrefsFindBool("ignoresegv")) {
1887		if (addr_mode == MODE_U || addr_mode == MODE_UX)
1888	<	r->gpr[ra] = addr;
1888	>	r->gpr(ra) = addr;
1889		if (transfer_type == TYPE_LOAD)
1890	<	r->gpr[rd] = 0;
1891	<	r->nip += 4;
1890	>	r->gpr(rd) = 0;
1891	>	r->pc() += 4;
1892		goto rti;
1893		}
1894
#	Line 1551 | Line 1896 | static void sigsegv_handler(int sig, sig
1896		if (!PrefsFindBool("nogui")) {
1897		char str[256];
1898		if (transfer_type == TYPE_LOAD || transfer_type == TYPE_STORE)
1899	<	sprintf(str, GetString(STR_MEM_ACCESS_ERR), transfer_size == SIZE_BYTE ? "byte" : transfer_size == SIZE_HALFWORD ? "halfword" : "word", transfer_type == TYPE_LOAD ? GetString(STR_MEM_ACCESS_READ) : GetString(STR_MEM_ACCESS_WRITE), addr, r->nip, r->gpr[24], r->gpr[1]);
1899	>	sprintf(str, GetString(STR_MEM_ACCESS_ERR), transfer_size == SIZE_BYTE ? "byte" : transfer_size == SIZE_HALFWORD ? "halfword" : "word", transfer_type == TYPE_LOAD ? GetString(STR_MEM_ACCESS_READ) : GetString(STR_MEM_ACCESS_WRITE), addr, r->pc(), r->gpr(24), r->gpr(1));
1900		else
1901	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
1901	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
1902		ErrorAlert(str);
1903		QuitEmulator();
1904		return;
#	Line 1561 | Line 1906 | static void sigsegv_handler(int sig, sig
1906		}
1907
1908		// For all other errors, jump into debugger (sort of...)
1909	+	crash_reason = (sig == SIGBUS) ? "SIGBUS" : "SIGSEGV";
1910		if (!ready_for_signals) {
1911	<	printf("SIGSEGV\n");
1912	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
1911	>	printf("%s\n");
1912	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
1913		printf(
1914		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1915		"  xer %08lx     cr %08lx  \n"
#	Line 1575 | Line 1921 | static void sigsegv_handler(int sig, sig
1921		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
1922		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
1923		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
1924	<	r->nip, r->link, r->ctr, r->msr,
1925	<	r->xer, r->ccr,
1926	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
1927	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
1928	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
1929	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
1930	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
1931	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
1932	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
1933	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
1924	>	crash_reason,
1925	>	r->pc(), r->lr(), r->ctr(), r->msr(),
1926	>	r->xer(), r->cr(),
1927	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
1928	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
1929	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
1930	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
1931	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
1932	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
1933	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
1934	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
1935		exit(1);
1936		QuitEmulator();
1937		return;
1938		} else {
1939		// We crashed. Save registers, tell tick thread and loop forever
1940	<	sigsegv_regs = *(sigregs *)r;
1940	>	build_sigregs(&sigsegv_regs, r);
1941		emul_thread_fatal = true;
1942		for (;;) ;
1943		}
#	Line 1602 | Line 1949 | rti:;
1949		*  SIGILL handler
1950		*/
1951
1952	<	static void sigill_handler(int sig, sigcontext_struct *sc)
1952	>	static void sigill_handler(int sig, siginfo_t *sip, void *scp)
1953		{
1954	<	pt_regs *r = sc->regs;
1954	>	machine_regs *r = MACHINE_REGISTERS(scp);
1955		char str[256];
1956
1957	+	#ifdef SYSTEM_CLOBBERS_R2
1958	+	// Restore pointer to Thread Local Storage
1959	+	set_r2(TOC);
1960	+	#endif
1961	+	#ifdef SYSTEM_CLOBBERS_R13
1962	+	// Restore pointer to .sdata section
1963	+	set_r13(R13);
1964	+	#endif
1965	+
1966		// Fault in Mac ROM or RAM?
1967	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1967	>	bool mac_fault = (r->pc() >= ROMBase) && (r->pc() < (ROMBase + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
1968		if (mac_fault) {
1969
1970		// Get opcode and divide into fields
1971	<	uint32 opcode = *((uint32 *)r->nip);
1971	>	uint32 opcode = *((uint32 *)r->pc());
1972		uint32 primop = opcode >> 26;
1973		uint32 exop = (opcode >> 1) & 0x3ff;
1974		uint32 ra = (opcode >> 16) & 0x1f;
#	Line 1623 | Line 1979 | static void sigill_handler(int sig, sigc
1979		switch (primop) {
1980		case 9:         // POWER instructions
1981		case 22:
1982	<	power_inst:             sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->nip, r->gpr[1], opcode);
1982	>	power_inst:             sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->pc(), r->gpr(1), opcode);
1983		ErrorAlert(str);
1984		QuitEmulator();
1985		return;
#	Line 1631 | Line 1987 | power_inst:            sprintf(str, GetString(STR_
1987		case 31:
1988		switch (exop) {
1989		case 83:        // mfmsr
1990	<	r->gpr[rd] = 0xf072;
1991	<	r->nip += 4;
1990	>	r->gpr(rd) = 0xf072;
1991	>	r->pc() += 4;
1992		goto rti;
1993
1994		case 210:       // mtsr
1995		case 242:       // mtsrin
1996		case 306:       // tlbie
1997	<	r->nip += 4;
1997	>	r->pc() += 4;
1998		goto rti;
1999
2000		case 339: {     // mfspr
#	Line 1654 | Line 2010 | power_inst:            sprintf(str, GetString(STR_
2010		case 957:       // PMC3
2011		case 958:       // PMC4
2012		case 959:       // SDA
2013	<	r->nip += 4;
2013	>	r->pc() += 4;
2014		goto rti;
2015		case 25:        // SDR1
2016	<	r->gpr[rd] = 0xdead001f;
2017	<	r->nip += 4;
2016	>	r->gpr(rd) = 0xdead001f;
2017	>	r->pc() += 4;
2018		goto rti;
2019		case 287:       // PVR
2020	<	r->gpr[rd] = PVR;
2021	<	r->nip += 4;
2020	>	r->gpr(rd) = PVR;
2021	>	r->pc() += 4;
2022		goto rti;
2023		}
2024		break;
#	Line 1698 | Line 2054 | power_inst:            sprintf(str, GetString(STR_
2054		case 957:       // PMC3
2055		case 958:       // PMC4
2056		case 959:       // SDA
2057	<	r->nip += 4;
2057	>	r->pc() += 4;
2058		goto rti;
2059		}
2060		break;
#	Line 1717 | Line 2073 | power_inst:            sprintf(str, GetString(STR_
2073
2074		// In GUI mode, show error alert
2075		if (!PrefsFindBool("nogui")) {
2076	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
2076	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
2077		ErrorAlert(str);
2078		QuitEmulator();
2079		return;
#	Line 1725 | Line 2081 | power_inst:            sprintf(str, GetString(STR_
2081		}
2082
2083		// For all other errors, jump into debugger (sort of...)
2084	+	crash_reason = "SIGILL";
2085		if (!ready_for_signals) {
2086	<	printf("SIGILL\n");
2087	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
2086	>	printf("%s\n");
2087	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
2088		printf(
2089		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
2090		"  xer %08lx     cr %08lx  \n"
#	Line 1739 | Line 2096 | power_inst:            sprintf(str, GetString(STR_
2096		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
2097		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
2098		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
2099	<	r->nip, r->link, r->ctr, r->msr,
2100	<	r->xer, r->ccr,
2101	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
2102	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
2103	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
2104	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
2105	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
2106	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
2107	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
2108	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
2099	>	crash_reason,
2100	>	r->pc(), r->lr(), r->ctr(), r->msr(),
2101	>	r->xer(), r->cr(),
2102	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
2103	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
2104	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
2105	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
2106	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
2107	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
2108	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
2109	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
2110		exit(1);
2111		QuitEmulator();
2112		return;
2113		} else {
2114		// We crashed. Save registers, tell tick thread and loop forever
2115	<	sigsegv_regs = *(sigregs *)r;
2115	>	build_sigregs(&sigsegv_regs, r);
2116		emul_thread_fatal = true;
2117		for (;;) ;
2118		}
#	Line 1764 | Line 2122 | rti:;
2122
2123
2124		/*
2125	+	*  Helpers to share 32-bit addressable data with MacOS
2126	+	*/
2127	+
2128	+	bool SheepMem::Init(void)
2129	+	{
2130	+	// Size of a native page
2131	+	page_size = getpagesize();
2132	+
2133	+	// Allocate SheepShaver globals
2134	+	proc = base;
2135	+	if (vm_mac_acquire_fixed(base, size) < 0)
2136	+	return false;
2137	+
2138	+	// Allocate page with all bits set to 0, right in the middle
2139	+	// This is also used to catch undesired overlaps between proc and data areas
2140	+	zero_page = proc + (size / 2);
2141	+	Mac_memset(zero_page, 0, page_size);
2142	+	if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0)
2143	+	return false;
2144	+
2145	+	#if EMULATED_PPC
2146	+	// Allocate alternate stack for PowerPC interrupt routine
2147	+	sig_stack = base + size;
2148	+	if (vm_mac_acquire_fixed(sig_stack, SIG_STACK_SIZE) < 0)
2149	+	return false;
2150	+	#endif
2151	+
2152	+	data = base + size;
2153	+	return true;
2154	+	}
2155	+
2156	+	void SheepMem::Exit(void)
2157	+	{
2158	+	if (data) {
2159	+	// Delete SheepShaver globals
2160	+	vm_mac_release(base, size);
2161	+
2162	+	#if EMULATED_PPC
2163	+	// Delete alternate stack for PowerPC interrupt routine
2164	+	vm_mac_release(sig_stack, SIG_STACK_SIZE);
2165	+	#endif
2166	+	}
2167	+	}
2168	+
2169	+
2170	+	/*
2171		*  Display alert
2172		*/
2173
#	Line 1812 | Line 2216 | void display_alert(int title_id, int pre
2216
2217		void ErrorAlert(const char *text)
2218		{
2219	<	#ifdef ENABLE_GTK
2219	>	if (gui_connection) {
2220	>	if (rpc_method_invoke(gui_connection, RPC_METHOD_ERROR_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2221	>	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2222	>	return;
2223	>	}
2224	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2225		if (PrefsFindBool("nogui") || x_display == NULL) {
2226		printf(GetString(STR_SHELL_ERROR_PREFIX), text);
2227		return;
#	Line 1831 | Line 2240 | void ErrorAlert(const char *text)
2240
2241		void WarningAlert(const char *text)
2242		{
2243	<	#ifdef ENABLE_GTK
2243	>	if (gui_connection) {
2244	>	if (rpc_method_invoke(gui_connection, RPC_METHOD_WARNING_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2245	>	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2246	>	return;
2247	>	}
2248	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2249		if (PrefsFindBool("nogui") || x_display == NULL) {
2250		printf(GetString(STR_SHELL_WARNING_PREFIX), text);
2251		return;

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