[ViewVC] Diff of: cebix/SheepShaver/src/Unix/main

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.2 by cebix, 2002-02-21T15:12:12Z vs.
Revision 1.87 by asvitkine, 2009-08-26T00:11:56Z

#	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) 1997-2008 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 129 \| 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 143 \| Line 161
161		const char ROM_FILE_NAME[] = "ROM";
162		const char ROM_FILE_NAME2[] = "Mac OS ROM";
163
164	<	const uint32 ROM_AREA_SIZE = 0x500000; // Size of ROM area
165	<	const uint32 ROM_END = ROM_BASE + ROM_SIZE; // End of ROM
166	<
167	<	const uint32 KERNEL_DATA_BASE = 0x68ffe000; // Address of Kernel Data
168	<	const uint32 KERNEL_DATA2_BASE = 0x5fffe000; // Alternate address of Kernel Data
169	<	const uint32 KERNEL_AREA_SIZE = 0x2000; // Size of Kernel Data area
170	<
153	<	const uint32 SIG_STACK_SIZE = 0x10000; // Size of signal stack
154	<
155	<
156	<	// 68k Emulator Data
157	<	struct EmulatorData {
158	<	uint32 v[0x400];
159	<	};
160	<
161	<
162	<	// Kernel Data
163	<	struct KernelData {
164	<	uint32 v[0x400];
165	<	EmulatorData ed;
166	<	};
167	<
168	<
169	<	#if !EMULATED_PPC
170	<	// Structure in which registers are saved in a signal handler;
171	<	// sigcontext->regs points to it
172	<	// (see arch/ppc/kernel/signal.c)
173	<	typedef struct {
174	<	uint32 u[4];
175	<	} __attribute((aligned(16))) vector128;
176	<	#include <linux/elf.h>
177	<
178	<	struct sigregs {
179	<	elf_gregset_t gp_regs; // Identical to pt_regs
180	<	double fp_regs[ELF_NFPREG]; // f0..f31 and fpsrc
181	<	//more (uninteresting) stuff following here
182	<	};
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 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	<	static char *x_display_name = NULL; // X11 display name
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
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 void *mmap_RAMBase = NULL; // Base address of mmap()ed RAM area
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
223		static bool ready_for_signals = false; // Handler installed, signals can be sent
224		static int64 num_segv = 0; // Number of handled SEGV signals
225
223	–	#if !EMULATED_PPC
226		static struct sigaction sigusr2_action; // Interrupt signal (of emulator thread)
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
257	<	static void sigusr2_handler(int sig, sigcontext_struct *sc);
258	<	static void sigsegv_handler(int sig, sigcontext_struct *sc);
259	<	static void sigill_handler(int sig, sigcontext_struct *sc);
256	>	#if EMULATED_PPC
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	>	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
248	<	extern int atomic_add(int *var, int v);
249	<	extern int atomic_and(int *var, int v);
250	<	extern int atomic_or(int *var, int v);
251	<	#else
252	<	extern "C" void *get_toc(void);
270	>	#if !EMULATED_PPC
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 263 \| Line 285 \| extern void paranoia_check(void);
285		#endif
286
287
288	<	// Decode LZSS data
289	<	static void decode_lzss(const uint8 src, uint8 dest, int size)
288	>	#if EMULATED_PPC
289	>	/*
290	>	* Return signal stack base
291	>	*/
292	>
293	>	uintptr SignalStackBase(void)
294		{
295	<	char dict[0x1000];
296	<	int run_mask = 0, dict_idx = 0xfee;
297	<	for (;;) {
298	<	if (run_mask < 0x100) {
299	<	// Start new run
300	<	if (--size < 0)
301	<	break;
302	<	run_mask = *src++ \| 0xff00;
303	<	}
304	<	bool bit = run_mask & 1;
305	<	run_mask >>= 1;
306	<	if (bit) {
307	<	// Verbatim copy
308	<	if (--size < 0)
309	<	break;
310	<	int c = *src++;
311	<	dict[dict_idx++] = c;
312	<	*dest++ = c;
313	<	dict_idx &= 0xfff;
314	<	} else {
315	<	// Copy from dictionary
316	<	if (--size < 0)
317	<	break;
318	<	int idx = *src++;
319	<	if (--size < 0)
320	<	break;
321	<	int cnt = *src++;
322	<	idx \|= (cnt << 4) & 0xf00;
323	<	cnt = (cnt & 0x0f) + 3;
324	<	while (cnt--) {
325	<	char c = dict[idx++];
326	<	dict[dict_idx++] = c;
327	<	*dest++ = c;
328	<	idx &= 0xfff;
329	<	dict_idx &= 0xfff;
330	<	}
331	<	}
332	<	}
295	>	return sig_stack + SIG_STACK_SIZE;
296	>	}
297	>
298	>
299	>	/*
300	>	* Atomic operations
301	>	*/
302	>
303	>	#if HAVE_SPINLOCKS
304	>	static spinlock_t atomic_ops_lock = SPIN_LOCK_UNLOCKED;
305	>	#else
306	>	#define spin_lock(LOCK)
307	>	#define spin_unlock(LOCK)
308	>	#endif
309	>
310	>	int atomic_add(int *var, int v)
311	>	{
312	>	spin_lock(&atomic_ops_lock);
313	>	int ret = *var;
314	>	*var += v;
315	>	spin_unlock(&atomic_ops_lock);
316	>	return ret;
317	>	}
318	>
319	>	int atomic_and(int *var, int v)
320	>	{
321	>	spin_lock(&atomic_ops_lock);
322	>	int ret = *var;
323	>	*var &= v;
324	>	spin_unlock(&atomic_ops_lock);
325	>	return ret;
326	>	}
327	>
328	>	int atomic_or(int *var, int v)
329	>	{
330	>	spin_lock(&atomic_ops_lock);
331	>	int ret = *var;
332	>	*var \|= v;
333	>	spin_unlock(&atomic_ops_lock);
334	>	return ret;
335	>	}
336	>	#endif
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
#	Line 320 \| 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];
326	–	uint32 *boot_globs;
327	–	int16 i16;
328	–	int drive, driver;
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	+	putenv("SDL_VIDEO_ALLOW_SCREENSAVER=1");
402	+
403	+	// Make SDL pass through command-clicks and option-clicks unaltered
404	+	putenv("SDL_HAS3BUTTONMOUSE=1");
405	+	#endif
406
407		// Initialize variables
408		RAMBase = 0;
338	–	mmap_RAMBase = NULL;
409		tzset();
410
411		// Print some info
#	Line 343 \| 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
349	–
350	–	#ifdef ENABLE_GTK
351	–	// Init GTK
352	–	gtk_set_locale();
353	–	gtk_init(&argc, &argv);
424		#endif
355	–
356	–	// Read preferences
357	–	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 383 \| 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, 0x003a0000, "POWER5 (gr)" },
689	+	{ 0xffff0000, 0x003b0000, "POWER5+ (gs)" },
690	+	{ 0xffff0000, 0x003e0000, "POWER6" },
691	+	{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
692	+	{ 0x7fff0000, 0x00900000, "PA6T" },
693	+	{ 0, 0, 0 }
694	+	};
695	+
696		char line[256];
697		while(fgets(line, 255, proc_file)) {
698		// Read line
#	Line 406 \| Line 703 \| int main(int argc, char argv)**
703
704		// Parse line
705		int i;
706	+	float f;
707		char value[256];
708	<	if (sscanf(line, "cpu : %s", value) == 1) {
709	<	if (strcmp(value, "601") == 0)
710	<	PVR = 0x00010000;
711	<	else if (strcmp(value, "603") == 0)
712	<	PVR = 0x00030000;
713	<	else if (strcmp(value, "604") == 0)
714	<	PVR = 0x00040000;
715	<	else if (strcmp(value, "603e") == 0)
716	<	PVR = 0x00060000;
717	<	else if (strcmp(value, "603ev") == 0)
718	<	PVR = 0x00070000;
421	<	else if (strcmp(value, "604e") == 0)
422	<	PVR = 0x00090000;
423	<	else if (strcmp(value, "604ev5") == 0)
424	<	PVR = 0x000a0000;
425	<	else if (strcmp(value, "750") == 0)
426	<	PVR = 0x00080000;
427	<	else if (strcmp(value, "821") == 0)
428	<	PVR = 0x00320000;
429	<	else if (strcmp(value, "860") == 0)
430	<	PVR = 0x00500000;
431	<	else
708	>	if (sscanf(line, "cpu : %[^,]", value) == 1) {
709	>	// Search by name
710	>	const char *cpu_name = NULL;
711	>	for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
712	>	if (strcmp(cpu_specs[i].cpu_name, value) == 0) {
713	>	cpu_name = cpu_specs[i].cpu_name;
714	>	PVR = cpu_specs[i].pvr_value;
715	>	break;
716	>	}
717	>	}
718	>	if (cpu_name == NULL)
719		printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
720	+	else
721	+	printf("Found a PowerPC %s processor\n", cpu_name);
722		}
723	<	if (sscanf(line, "clock : %dMHz", &i) == 1)
723	>	if (sscanf(line, "clock : %fMHz", &f) == 1)
724	>	CPUClockSpeed = BusClockSpeed = ((int64)f) * 1000000;
725	>	else if (sscanf(line, "clock : %dMHz", &i) == 1)
726		CPUClockSpeed = BusClockSpeed = i * 1000000;
727		}
728		fclose(proc_file);
#	Line 439 \| Line 730 \| int main(int argc, char argv)**
730		sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
731		WarningAlert(str);
732		}
733	+
734	+	// Get actual bus frequency
735	+	proc_file = fopen("/proc/device-tree/clock-frequency", "r");
736	+	if (proc_file) {
737	+	union { uint8 b[4]; uint32 l; } value;
738	+	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
739	+	BusClockSpeed = value.l;
740	+	fclose(proc_file);
741	+	}
742	+
743	+	// Get actual timebase frequency
744	+	TimebaseSpeed = BusClockSpeed / 4;
745	+	DIR *cpus_dir;
746	+	if ((cpus_dir = opendir("/proc/device-tree/cpus")) != NULL) {
747	+	struct dirent *cpu_entry;
748	+	while ((cpu_entry = readdir(cpus_dir)) != NULL) {
749	+	if (strstr(cpu_entry->d_name, "PowerPC,") == cpu_entry->d_name) {
750	+	char timebase_freq_node[256];
751	+	sprintf(timebase_freq_node, "/proc/device-tree/cpus/%s/timebase-frequency", cpu_entry->d_name);
752	+	proc_file = fopen(timebase_freq_node, "r");
753	+	if (proc_file) {
754	+	union { uint8 b[4]; uint32 l; } value;
755	+	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
756	+	TimebaseSpeed = value.l;
757	+	fclose(proc_file);
758	+	}
759	+	}
760	+	}
761	+	closedir(cpus_dir);
762	+	}
763		#endif
764	+	// Remap any newer G4/G5 processor to plain G4 for compatibility
765	+	switch (PVR >> 16) {
766	+	case 0x8000: // 7450
767	+	case 0x8001: // 7455
768	+	case 0x8002: // 7457
769	+	case 0x8003: // 7447A
770	+	case 0x8004: // 7448
771	+	case 0x0039: // 970
772	+	case 0x003c: // 970FX
773	+	PVR = 0x000c0000; // 7400
774	+	break;
775	+	}
776		D(bug("PVR: %08x (assumed)\n", PVR));
777
778		// Init system routines
#	Line 463 \| Line 796 \| int main(int argc, char argv)**
796		goto quit;
797		}
798
466	–	// Create Low Memory area (0x0000..0x3000)
467	–	if (mmap((char )0x0000, 0x3000, PROT_READ \| PROT_WRITE, MAP_FIXED \| MAP_PRIVATE, zero_fd, 0) == (void )-1) {
468	–	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
469	–	ErrorAlert(str);
470	–	goto quit;
471	–	}
472	–	lm_area_mapped = true;
473	–
799		// Create areas for Kernel Data
800	<	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
801	<	if (kernel_area == -1) {
802	<	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
800	>	if (!kernel_data_init())
801	>	goto quit;
802	>	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
803	>	emulator_data = &kernel_data->ed;
804	>	KernelDataAddr = KERNEL_DATA_BASE;
805	>	D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE));
806	>	D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
807	>
808	>	// Create area for DR Cache
809	>	if (vm_mac_acquire_fixed(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
810	>	sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
811		ErrorAlert(str);
812		goto quit;
813		}
814	<	if (shmat(kernel_area, (void *)KERNEL_DATA_BASE, 0) < 0) {
815	<	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
814	>	dr_emulator_area_mapped = true;
815	>	if (vm_mac_acquire_fixed(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
816	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
817		ErrorAlert(str);
818		goto quit;
819		}
820	<	if (shmat(kernel_area, (void *)KERNEL_DATA2_BASE, 0) < 0) {
821	<	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
820	>	dr_cache_area_mapped = true;
821	>	#if !EMULATED_PPC
822	>	if (vm_protect((char *)DR_CACHE_BASE, DR_CACHE_SIZE, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
823	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
824		ErrorAlert(str);
825		goto quit;
826		}
827	<	kernel_data = (KernelData *)0x68ffe000;
828	<	emulator_data = &kernel_data->ed;
829	<	KernelDataAddr = (uint32)kernel_data;
494	<	D(bug("Kernel Data at %p, Emulator Data at %p\n", kernel_data, emulator_data));
827	>	#endif
828	>	DRCacheAddr = DR_CACHE_BASE;
829	>	D(bug("DR Cache at %p\n", DRCacheAddr));
830
831	<	// Create area for Mac ROM
832	<	if (mmap((char )ROM_BASE, ROM_AREA_SIZE, PROT_EXEC \| PROT_READ \| PROT_WRITE, MAP_FIXED \| MAP_PRIVATE, zero_fd, 0) == (void )-1) {
833	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
831	>	// Create area for SheepShaver data
832	>	if (!SheepMem::Init()) {
833	>	sprintf(str, GetString(STR_SHEEP_MEM_MMAP_ERR), strerror(errno));
834		ErrorAlert(str);
835		goto quit;
836		}
837	<	rom_area_mapped = true;
503	<	D(bug("ROM area at %08x\n", ROM_BASE));
504	<
837	>
838		// Create area for Mac RAM
839		RAMSize = PrefsFindInt32("ramsize");
840		if (RAMSize < 810241024) {
841		WarningAlert(GetString(STR_SMALL_RAM_WARN));
842		RAMSize = 810241024;
843		}
844	<
845	<	mmap_RAMBase = mmap((void *)0x20000000, RAMSize, PROT_EXEC \| PROT_READ \| PROT_WRITE, MAP_FIXED \| MAP_PRIVATE, zero_fd, 0);
846	<	if (mmap_RAMBase == (void *)-1) {
844	>	memory_mapped_from_zero = false;
845	>	ram_rom_areas_contiguous = false;
846	>	#if REAL_ADDRESSING && HAVE_LINKER_SCRIPT
847	>	if (vm_mac_acquire_fixed(0, RAMSize) == 0) {
848	>	D(bug("Could allocate RAM from 0x0000\n"));
849	>	RAMBase = 0;
850	>	RAMBaseHost = Mac2HostAddr(RAMBase);
851	>	memory_mapped_from_zero = true;
852	>	}
853	>	#endif
854	>	if (!memory_mapped_from_zero) {
855	>	#ifndef PAGEZERO_HACK
856	>	// Create Low Memory area (0x0000..0x3000)
857	>	if (vm_mac_acquire_fixed(0, 0x3000) < 0) {
858	>	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
859	>	ErrorAlert(str);
860	>	goto quit;
861	>	}
862	>	lm_area_mapped = true;
863	>	#endif
864	>	#if REAL_ADDRESSING
865	>	// Allocate RAM at any address. Since ROM must be higher than RAM, allocate the RAM
866	>	// and ROM areas contiguously, plus a little extra to allow for ROM address alignment.
867	>	RAMBaseHost = vm_mac_acquire(RAMSize + ROM_AREA_SIZE + ROM_ALIGNMENT);
868	>	if (RAMBaseHost == VM_MAP_FAILED) {
869	>	sprintf(str, GetString(STR_RAM_ROM_MMAP_ERR), strerror(errno));
870	>	ErrorAlert(str);
871	>	goto quit;
872	>	}
873	>	RAMBase = Host2MacAddr(RAMBaseHost);
874	>	ROMBase = (RAMBase + RAMSize + ROM_ALIGNMENT -1) & -ROM_ALIGNMENT;
875	>	ROMBaseHost = Mac2HostAddr(ROMBase);
876	>	ram_rom_areas_contiguous = true;
877	>	#else
878	>	if (vm_mac_acquire_fixed(RAM_BASE, RAMSize) < 0) {
879	>	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
880	>	ErrorAlert(str);
881	>	goto quit;
882	>	}
883	>	RAMBase = RAM_BASE;
884	>	RAMBaseHost = Mac2HostAddr(RAMBase);
885	>	#endif
886	>	}
887	>	#if !EMULATED_PPC
888	>	if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
889		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
890		ErrorAlert(str);
891		goto quit;
892		}
893	<	RAMBase = (uint32)mmap_RAMBase;
893	>	#endif
894		ram_area_mapped = true;
895	<	D(bug("RAM area at %08x\n", RAMBase));
895	>	D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
896	>
897	>	if (RAMBase > KernelDataAddr) {
898	>	ErrorAlert(GetString(STR_RAM_AREA_TOO_HIGH_ERR));
899	>	goto quit;
900	>	}
901	>
902	>	// Create area for Mac ROM
903	>	if (!ram_rom_areas_contiguous) {
904	>	if (vm_mac_acquire_fixed(ROM_BASE, ROM_AREA_SIZE) < 0) {
905	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
906	>	ErrorAlert(str);
907	>	goto quit;
908	>	}
909	>	ROMBase = ROM_BASE;
910	>	ROMBaseHost = Mac2HostAddr(ROMBase);
911	>	}
912	>	#if !EMULATED_PPC
913	>	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
914	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
915	>	ErrorAlert(str);
916	>	goto quit;
917	>	}
918	>	#endif
919	>	rom_area_mapped = true;
920	>	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROMBase));
921
922	<	if (RAMBase > ROM_BASE) {
922	>	if (RAMBase > ROMBase) {
923		ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
924		goto quit;
925		}
926
927		// Load Mac ROM
928		rom_path = PrefsFindString("rom");
929	<	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
929	>	rom_fd = open(rom_path && *rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
930		if (rom_fd < 0) {
931	<	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME2, O_RDONLY);
931	>	rom_fd = open(ROM_FILE_NAME2, O_RDONLY);
932		if (rom_fd < 0) {
933		ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
934		goto quit;
#	Line 540 \| Line 940 \| int main(int argc, char argv)**
940		rom_tmp = new uint8[ROM_SIZE];
941		actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
942		close(rom_fd);
943	<	if (actual == ROM_SIZE) {
944	<	// Plain ROM image
945	<	memcpy((void *)ROM_BASE, rom_tmp, ROM_SIZE);
946	<	delete[] rom_tmp;
547	<	} else {
548	<	if (strncmp((char *)rom_tmp, "<CHRP-BOOT>", 11) == 0) {
549	<	// CHRP compressed ROM image
550	<	D(bug("CHRP ROM image\n"));
551	<	uint32 lzss_offset, lzss_size;
552	<
553	<	char s = strstr((char )rom_tmp, "constant lzss-offset");
554	<	if (s == NULL) {
555	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
556	<	goto quit;
557	<	}
558	<	s -= 7;
559	<	if (sscanf(s, "%06x", &lzss_offset) != 1) {
560	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
561	<	goto quit;
562	<	}
563	<	s = strstr((char *)rom_tmp, "constant lzss-size");
564	<	if (s == NULL) {
565	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
566	<	goto quit;
567	<	}
568	<	s -= 7;
569	<	if (sscanf(s, "%06x", &lzss_size) != 1) {
570	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
571	<	goto quit;
572	<	}
573	<	D(bug("Offset of compressed data: %08x\n", lzss_offset));
574	<	D(bug("Size of compressed data: %08x\n", lzss_size));
575	<
576	<	D(bug("Uncompressing ROM...\n"));
577	<	decode_lzss(rom_tmp + lzss_offset, (uint8 *)ROM_BASE, lzss_size);
578	<	delete[] rom_tmp;
579	<	} else if (rom_size != 410241024) {
943	>
944	>	// Decode Mac ROM
945	>	if (!DecodeROM(rom_tmp, actual)) {
946	>	if (rom_size != 410241024) {
947		ErrorAlert(GetString(STR_ROM_SIZE_ERR));
948		goto quit;
949		} else {
#	Line 584 \| Line 951 \| int main(int argc, char argv)**
951		goto quit;
952		}
953		}
954	+	delete[] rom_tmp;
955
956	<	// Load NVRAM
957	<	XPRAMInit();
590	<
591	<	// Set boot volume
592	<	drive = PrefsFindInt32("bootdrive");
593	<	XPRAM[0x1378] = i16 >> 8;
594	<	XPRAM[0x1379] = i16 & 0xff;
595	<	driver = PrefsFindInt32("bootdriver");
596	<	XPRAM[0x137a] = i16 >> 8;
597	<	XPRAM[0x137b] = i16 & 0xff;
598	<
599	<	// Create BootGlobs at top of Mac memory
600	<	memset((void *)(RAMBase + RAMSize - 4096), 0, 4096);
601	<	BootGlobsAddr = RAMBase + RAMSize - 0x1c;
602	<	boot_globs = (uint32 *)BootGlobsAddr;
603	<	boot_globs[-5] = htonl(RAMBase + RAMSize); // MemTop
604	<	boot_globs[0] = htonl(RAMBase); // First RAM bank
605	<	boot_globs[1] = htonl(RAMSize);
606	<	boot_globs[2] = htonl((uint32)-1); // End of bank table
607	<
608	<	// Init drivers
609	<	SonyInit();
610	<	DiskInit();
611	<	CDROMInit();
612	<	SCSIInit();
613	<
614	<	// Init external file system
615	<	ExtFSInit();
616	<
617	<	// Init audio
618	<	AudioInit();
619	<
620	<	// Init network
621	<	EtherInit();
622	<
623	<	// Init serial ports
624	<	SerialInit();
625	<
626	<	// Init Time Manager
627	<	TimerInit();
628	<
629	<	// Init clipboard
630	<	ClipInit();
631	<
632	<	// Init video
633	<	if (!VideoInit())
634	<	goto quit;
635	<
636	<	// Install ROM patches
637	<	if (!PatchROM()) {
638	<	ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
956	>	// Initialize everything
957	>	if (!InitAll(vmdir))
958		goto quit;
959	<	}
959	>	D(bug("Initialization complete\n"));
960
961		// Clear caches (as we loaded and patched code) and write protect ROM
962		#if !EMULATED_PPC
963	<	MakeExecutable(0, (void *)ROM_BASE, ROM_AREA_SIZE);
645	<	#endif
646	<	mprotect((char *)ROM_BASE, ROM_AREA_SIZE, PROT_EXEC \| PROT_READ);
647	<
648	<	// Initialize Kernel Data
649	<	memset(kernel_data, 0, sizeof(KernelData));
650	<	if (ROMType == ROMTYPE_NEWWORLD) {
651	<	static uint32 of_dev_tree[4] = {0, 0, 0, 0};
652	<	static uint8 vector_lookup_tbl[128];
653	<	static uint8 vector_mask_tbl[64];
654	<	memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
655	<	memset(vector_lookup_tbl, 0, 128);
656	<	memset(vector_mask_tbl, 0, 64);
657	<	kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
658	<	kernel_data->v[0xb84 >> 2] = htonl((uint32)of_dev_tree); // OF device tree base
659	<	kernel_data->v[0xb90 >> 2] = htonl((uint32)vector_lookup_tbl);
660	<	kernel_data->v[0xb94 >> 2] = htonl((uint32)vector_mask_tbl);
661	<	kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE); // OpenPIC base
662	<	kernel_data->v[0xbb0 >> 2] = htonl(0); // ADB base
663	<	kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
664	<	kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
665	<	kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
666	<	kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
667	<	kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
668	<	kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
669	<	kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
670	<	kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
671	<	kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
672	<	kernel_data->v[0xf60 >> 2] = htonl(PVR);
673	<	kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed);
674	<	kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed);
675	<	kernel_data->v[0xf6c >> 2] = htonl(CPUClockSpeed);
676	<	} else {
677	<	kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
678	<	kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
679	<	kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
680	<	kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
681	<	kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
682	<	kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
683	<	kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
684	<	kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
685	<	kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
686	<	kernel_data->v[0xf80 >> 2] = htonl(PVR);
687	<	kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed);
688	<	kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed);
689	<	kernel_data->v[0xf8c >> 2] = htonl(CPUClockSpeed);
690	<	}
691	<
692	<	// Initialize extra low memory
693	<	D(bug("Initializing Low Memory...\n"));
694	<	memset(NULL, 0, 0x3000);
695	<	WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h')); // Signature to detect SheepShaver
696	<	WriteMacInt32(XLM_KERNEL_DATA, (uint32)kernel_data); // For trap replacement routines
697	<	WriteMacInt32(XLM_PVR, PVR); // Theoretical PVR
698	<	WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed); // For DriverServicesLib patch
699	<	WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN); // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
700	<	#if !EMULATED_PPC
701	<	WriteMacInt32(XLM_TOC, (uint32)TOC); // TOC pointer of emulator
702	<	WriteMacInt32(XLM_ETHER_INIT, (uint32)InitStreamModule); // DLPI ethernet driver functions
703	<	WriteMacInt32(XLM_ETHER_TERM, (uint32)TerminateStreamModule);
704	<	WriteMacInt32(XLM_ETHER_OPEN, (uint32)ether_open);
705	<	WriteMacInt32(XLM_ETHER_CLOSE, (uint32)ether_close);
706	<	WriteMacInt32(XLM_ETHER_WPUT, (uint32)ether_wput);
707	<	WriteMacInt32(XLM_ETHER_RSRV, (uint32)ether_rsrv);
708	<	WriteMacInt32(XLM_VIDEO_DOIO, (uint32)VideoDoDriverIO);
963	>	flush_icache_range(ROMBase, ROMBase + ROM_AREA_SIZE);
964		#endif
965	<	D(bug("Low Memory initialized\n"));
965	>	vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ \| VM_PAGE_EXECUTE);
966
967		// Start 60Hz thread
968	+	tick_thread_cancel = false;
969		tick_thread_active = (pthread_create(&tick_thread, NULL, tick_func, NULL) == 0);
970		D(bug("Tick thread installed (%ld)\n", tick_thread));
971
972		// Start NVRAM watchdog thread
973		memcpy(last_xpram, XPRAM, XPRAM_SIZE);
974	+	nvram_thread_cancel = false;
975		nvram_thread_active = (pthread_create(&nvram_thread, NULL, nvram_func, NULL) == 0);
976		D(bug("NVRAM thread installed (%ld)\n", nvram_thread));
977
978		#if !EMULATED_PPC
722	–	// Create and install stacks for signal handlers
723	–	sig_stack = malloc(SIG_STACK_SIZE);
724	–	D(bug("Signal stack at %p\n", sig_stack));
725	–	if (sig_stack == NULL) {
726	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
727	–	goto quit;
728	–	}
729	–	extra_stack = malloc(SIG_STACK_SIZE);
730	–	D(bug("Extra stack at %p\n", extra_stack));
731	–	if (extra_stack == NULL) {
732	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
733	–	goto quit;
734	–	}
735	–	struct sigaltstack new_stack;
736	–	new_stack.ss_sp = sig_stack;
737	–	new_stack.ss_flags = 0;
738	–	new_stack.ss_size = SIG_STACK_SIZE;
739	–	if (sigaltstack(&new_stack, NULL) < 0) {
740	–	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
741	–	ErrorAlert(str);
742	–	goto quit;
743	–	}
744	–	#endif
745	–
746	–	#if !EMULATED_PPC
747	–	// Install SIGSEGV handler
748	–	sigemptyset(&sigsegv_action.sa_mask); // Block interrupts during SEGV handling
749	–	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
750	–	sigsegv_action.sa_handler = (__sighandler_t)sigsegv_handler;
751	–	sigsegv_action.sa_flags = SA_ONSTACK;
752	–	sigsegv_action.sa_restorer = NULL;
753	–	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
754	–	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
755	–	ErrorAlert(str);
756	–	goto quit;
757	–	}
758	–
979		// Install SIGILL handler
980		sigemptyset(&sigill_action.sa_mask); // Block interrupts during ILL handling
981		sigaddset(&sigill_action.sa_mask, SIGUSR2);
982	<	sigill_action.sa_handler = (__sighandler_t)sigill_handler;
983	<	sigill_action.sa_flags = SA_ONSTACK;
982	>	sigill_action.sa_sigaction = sigill_handler;
983	>	sigill_action.sa_flags = SA_ONSTACK \| SA_SIGINFO;
984	>	#ifdef HAVE_SIGNAL_SA_RESTORER
985		sigill_action.sa_restorer = NULL;
986	+	#endif
987		if (sigaction(SIGILL, &sigill_action, NULL) < 0) {
988	<	sprintf(str, GetString(STR_SIGILL_INSTALL_ERR), strerror(errno));
988	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGILL", strerror(errno));
989		ErrorAlert(str);
990		goto quit;
991		}
992	+	#endif
993
994	+	#if !EMULATED_PPC
995		// Install interrupt signal handler
996		sigemptyset(&sigusr2_action.sa_mask);
997	<	sigusr2_action.sa_handler = (__sighandler_t)sigusr2_handler;
998	<	sigusr2_action.sa_flags = SA_ONSTACK \| SA_RESTART;
997	>	sigusr2_action.sa_sigaction = sigusr2_handler_init;
998	>	sigusr2_action.sa_flags = SA_ONSTACK \| SA_RESTART \| SA_SIGINFO;
999	>	#ifdef HAVE_SIGNAL_SA_RESTORER
1000		sigusr2_action.sa_restorer = NULL;
1001	+	#endif
1002		if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
1003	<	sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
1003	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGUSR2", strerror(errno));
1004		ErrorAlert(str);
1005		goto quit;
1006		}
#	Line 797 \| Line 1023 \| quit:
1023
1024		static void Quit(void)
1025		{
1026	+	#if EMULATED_PPC
1027	+	// Exit PowerPC emulation
1028	+	exit_emul_ppc();
1029	+	#endif
1030	+
1031		// Stop 60Hz thread
1032		if (tick_thread_active) {
1033	+	tick_thread_cancel = true;
1034		pthread_cancel(tick_thread);
1035		pthread_join(tick_thread, NULL);
1036		}
1037
1038		// Stop NVRAM watchdog thread
1039		if (nvram_thread_active) {
1040	+	nvram_thread_cancel = true;
1041		pthread_cancel(nvram_thread);
1042		pthread_join(nvram_thread, NULL);
1043		}
1044
1045		#if !EMULATED_PPC
1046	<	// Uninstall SIGSEGV handler
1046	>	// Uninstall SIGSEGV and SIGBUS handlers
1047		sigemptyset(&sigsegv_action.sa_mask);
1048		sigsegv_action.sa_handler = SIG_DFL;
1049		sigsegv_action.sa_flags = 0;
1050		sigaction(SIGSEGV, &sigsegv_action, NULL);
1051	+	sigaction(SIGBUS, &sigsegv_action, NULL);
1052
1053		// Uninstall SIGILL handler
1054		sigemptyset(&sigill_action.sa_mask);
1055		sigill_action.sa_handler = SIG_DFL;
1056		sigill_action.sa_flags = 0;
1057		sigaction(SIGILL, &sigill_action, NULL);
824	–	#endif
825	–
826	–	// Save NVRAM
827	–	XPRAMExit();
828	–
829	–	// Exit clipboard
830	–	ClipExit();
1058
1059	<	// Exit Time Manager
1060	<	TimerExit();
1061	<
1062	<	// Exit serial
1063	<	SerialExit();
1064	<
838	<	// Exit network
839	<	EtherExit();
840	<
841	<	// Exit audio
842	<	AudioExit();
843	<
844	<	// Exit video
845	<	VideoExit();
1059	>	// Delete stacks for signal handlers
1060	>	if (sig_stack.ss_sp)
1061	>	free(sig_stack.ss_sp);
1062	>	if (extra_stack.ss_sp)
1063	>	free(extra_stack.ss_sp);
1064	>	#endif
1065
1066	<	// Exit external file system
1067	<	ExtFSExit();
1066	>	// Deinitialize everything
1067	>	ExitAll();
1068
1069	<	// Exit drivers
1070	<	SCSIExit();
852	<	CDROMExit();
853	<	DiskExit();
854	<	SonyExit();
1069	>	// Delete SheepShaver globals
1070	>	SheepMem::Exit();
1071
1072		// Delete RAM area
1073		if (ram_area_mapped)
1074	<	munmap(mmap_RAMBase, RAMSize);
1074	>	vm_mac_release(RAMBase, RAMSize);
1075
1076		// Delete ROM area
1077		if (rom_area_mapped)
1078	<	munmap((char *)ROM_BASE, ROM_AREA_SIZE);
1078	>	vm_mac_release(ROMBase, ROM_AREA_SIZE);
1079	>
1080	>	// Delete DR cache areas
1081	>	if (dr_emulator_area_mapped)
1082	>	vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
1083	>	if (dr_cache_area_mapped)
1084	>	vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE);
1085
1086		// Delete Kernel Data area
1087	<	if (kernel_area >= 0) {
866	<	shmdt((void *)KERNEL_DATA_BASE);
867	<	shmdt((void *)KERNEL_DATA2_BASE);
868	<	shmctl(kernel_area, IPC_RMID, NULL);
869	<	}
1087	>	kernel_data_exit();
1088
1089		// Delete Low Memory area
1090		if (lm_area_mapped)
1091	<	munmap((char *)0x0000, 0x3000);
1091	>	vm_mac_release(0, 0x3000);
1092
1093		// Close /dev/zero
1094		if (zero_fd > 0)
#	Line 888 \| Line 1106 \| static void Quit(void)
1106		#endif
1107
1108		// Close X11 server connection
1109	+	#ifndef USE_SDL_VIDEO
1110		if (x_display)
1111		XCloseDisplay(x_display);
1112	+	#endif
1113	+
1114	+	// Notify GUI we are about to leave
1115	+	if (gui_connection) {
1116	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_EXIT, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
1117	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID);
1118	+	}
1119
1120		exit(0);
1121		}
1122
1123
1124		/*
1125	+	* Initialize Kernel Data segments
1126	+	*/
1127	+
1128	+	static bool kernel_data_init(void)
1129	+	{
1130	+	char str[256];
1131	+	uint32 kernel_area_size = (KERNEL_AREA_SIZE + SHMLBA - 1) & -SHMLBA;
1132	+
1133	+	kernel_area = shmget(IPC_PRIVATE, kernel_area_size, 0600);
1134	+	if (kernel_area == -1) {
1135	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
1136	+	ErrorAlert(str);
1137	+	return false;
1138	+	}
1139	+	void *kernel_addr = Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA);
1140	+	if (shmat(kernel_area, kernel_addr, 0) != kernel_addr) {
1141	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
1142	+	ErrorAlert(str);
1143	+	return false;
1144	+	}
1145	+	kernel_addr = Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA);
1146	+	if (shmat(kernel_area, kernel_addr, 0) != kernel_addr) {
1147	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
1148	+	ErrorAlert(str);
1149	+	return false;
1150	+	}
1151	+	return true;
1152	+	}
1153	+
1154	+
1155	+	/*
1156	+	* Deallocate Kernel Data segments
1157	+	*/
1158	+
1159	+	static void kernel_data_exit(void)
1160	+	{
1161	+	if (kernel_area >= 0) {
1162	+	shmdt(Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA));
1163	+	shmdt(Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA));
1164	+	shmctl(kernel_area, IPC_RMID, NULL);
1165	+	}
1166	+	}
1167	+
1168	+
1169	+	/*
1170		* Jump into Mac ROM, start 680x0 emulator
1171		*/
1172
1173		#if EMULATED_PPC
903	–	extern void emul_ppc(uint32 start);
904	–	extern void init_emul_ppc(void);
1174		void jump_to_rom(uint32 entry)
1175		{
1176		init_emul_ppc();
#	Line 925 \| Line 1194 \| *static void emul_func(void arg)*
1194		// Jump to ROM boot routine
1195		D(bug("Jumping to ROM\n"));
1196		#if EMULATED_PPC
1197	<	jump_to_rom(ROM_BASE + 0x310000);
1197	>	jump_to_rom(ROMBase + 0x310000);
1198		#else
1199	<	jump_to_rom(ROM_BASE + 0x310000, (uint32)emulator_data);
1199	>	jump_to_rom(ROMBase + 0x310000, (uint32)emulator_data);
1200		#endif
1201		D(bug("Returned from ROM\n"));
1202
#	Line 970 \| Line 1239 \| void Execute68kTrap(uint16 trap, M68kReg
1239
1240
1241		/*
973	–	* Execute PPC code from EMUL_OP routine (real mode switch)
974	–	*/
975	–
976	–	void ExecutePPC(void (*func)())
977	–	{
978	–	uint32 tvect[2] = {(uint32)func, 0}; // Fake TVECT
979	–	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
980	–	M68kRegisters r;
981	–	Execute68k((uint32)&desc, &r);
982	–	}
983	–
984	–
985	–	/*
1242		* Quit emulator (cause return from jump_to_rom)
1243		*/
1244
#	Line 997 \| Line 1253 \| void QuitEmulator(void)
1253
1254
1255		/*
1000	–	* Pause/resume emulator
1001	–	*/
1002	–
1003	–	void PauseEmulator(void)
1004	–	{
1005	–	pthread_kill(emul_thread, SIGSTOP);
1006	–	}
1007	–
1008	–	void ResumeEmulator(void)
1009	–	{
1010	–	pthread_kill(emul_thread, SIGCONT);
1011	–	}
1012	–
1013	–
1014	–	/*
1256		* Dump 68k registers
1257		*/
1258
#	Line 1039 \| Line 1280 \| *void Dump68kRegs(M68kRegisters r)**
1280		* Make code executable
1281		*/
1282
1283	<	void MakeExecutable(int dummy, void *start, uint32 length)
1283	>	void MakeExecutable(int dummy, uint32 start, uint32 length)
1284		{
1285	<	#if !EMULATED_PPC
1045	<	if (((uint32)start >= ROM_BASE) && ((uint32)start < (ROM_BASE + ROM_SIZE)))
1285	>	if ((start >= ROMBase) && (start < (ROMBase + ROM_SIZE)))
1286		return;
1287	<	flush_icache_range(start, (void *)((uint32)start + length));
1287	>	#if EMULATED_PPC
1288	>	FlushCodeCache(start, start + length);
1289	>	#else
1290	>	flush_icache_range(start, start + length);
1291		#endif
1292		}
1293
1294
1295		/*
1296	<	* Patch things after system startup (gets called by disk driver accRun routine)
1296	>	* NVRAM watchdog thread (saves NVRAM every minute)
1297		*/
1298
1299	<	void PatchAfterStartup(void)
1299	>	static void nvram_watchdog(void)
1300		{
1301	<	ExecutePPC(VideoInstallAccel);
1302	<	InstallExtFS();
1301	>	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1302	>	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1303	>	SaveXPRAM();
1304	>	}
1305		}
1306
1062	–
1063	–	/*
1064	–	* NVRAM watchdog thread (saves NVRAM every minute)
1065	–	*/
1066	–
1307		static void nvram_func(void arg)
1308		{
1309	<	struct timespec req = {60, 0}; // 1 minute
1310	<
1311	<	for (;;) {
1312	<	pthread_testcancel();
1073	<	nanosleep(&req, NULL);
1074	<	pthread_testcancel();
1075	<	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1076	<	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1077	<	SaveXPRAM();
1078	<	}
1309	>	while (!nvram_thread_cancel) {
1310	>	for (int i=0; i<60 && !nvram_thread_cancel; i++)
1311	>	Delay_usec(999999); // Only wait 1 second so we quit promptly when nvram_thread_cancel becomes true
1312	>	nvram_watchdog();
1313		}
1314		return NULL;
1315		}
#	Line 1088 \| Line 1322 \| *static void nvram_func(void arg)*
1322		static void tick_func(void arg)
1323		{
1324		int tick_counter = 0;
1325	<	struct timespec req = {0, 16625000};
1325	>	uint64 start = GetTicks_usec();
1326	>	int64 ticks = 0;
1327	>	uint64 next = GetTicks_usec();
1328
1329	<	for (;;) {
1329	>	while (!tick_thread_cancel) {
1330
1331		// Wait
1332	<	nanosleep(&req, NULL);
1332	>	next += 16625;
1333	>	int64 delay = next - GetTicks_usec();
1334	>	if (delay > 0)
1335	>	Delay_usec(delay);
1336	>	else if (delay < -16625)
1337	>	next = GetTicks_usec();
1338	>	ticks++;
1339
1340		#if !EMULATED_PPC
1341		// Did we crash?
1342		if (emul_thread_fatal) {
1343
1344		// Yes, dump registers
1345	<	pt_regs r = (pt_regs )&sigsegv_regs;
1345	>	sigregs *r = &sigsegv_regs;
1346		char str[256];
1347	<	sprintf(str, "SIGSEGV\n"
1347	>	if (crash_reason == NULL)
1348	>	crash_reason = "SIGSEGV";
1349	>	sprintf(str, "%s\n"
1350		" pc %08lx lr %08lx ctr %08lx msr %08lx\n"
1351		" xer %08lx cr %08lx \n"
1352		" r0 %08lx r1 %08lx r2 %08lx r3 %08lx\n"
#	Line 1113 \| Line 1357 \| *static void tick_func(void arg)*
1357		" r20 %08lx r21 %08lx r22 %08lx r23 %08lx\n"
1358		" r24 %08lx r25 %08lx r26 %08lx r27 %08lx\n"
1359		" r28 %08lx r29 %08lx r30 %08lx r31 %08lx\n",
1360	+	crash_reason,
1361		r->nip, r->link, r->ctr, r->msr,
1362		r->xer, r->ccr,
1363		r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
#	Line 1148 \| Line 1393 \| *static void tick_func(void arg)*
1393		TriggerInterrupt();
1394		}
1395		}
1396	+
1397	+	uint64 end = GetTicks_usec();
1398	+	D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1399		return NULL;
1400		}
1401
#	Line 1158 \| Line 1406 \| *static void tick_func(void arg)*
1406
1407		void Set_pthread_attr(pthread_attr_t *attr, int priority)
1408		{
1409	<	// nothing to do
1409	>	#ifdef HAVE_PTHREADS
1410	>	pthread_attr_init(attr);
1411	>	#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING)
1412	>	// Some of these only work for superuser
1413	>	if (geteuid() == 0) {
1414	>	pthread_attr_setinheritsched(attr, PTHREAD_EXPLICIT_SCHED);
1415	>	pthread_attr_setschedpolicy(attr, SCHED_FIFO);
1416	>	struct sched_param fifo_param;
1417	>	fifo_param.sched_priority = ((sched_get_priority_min(SCHED_FIFO) +
1418	>	sched_get_priority_max(SCHED_FIFO)) / 2 +
1419	>	priority);
1420	>	pthread_attr_setschedparam(attr, &fifo_param);
1421	>	}
1422	>	if (pthread_attr_setscope(attr, PTHREAD_SCOPE_SYSTEM) != 0) {
1423	>	#ifdef PTHREAD_SCOPE_BOUND_NP
1424	>	// If system scope is not available (eg. we're not running
1425	>	// with CAP_SCHED_MGT capability on an SGI box), try bound
1426	>	// scope. It exposes pthread scheduling to the kernel,
1427	>	// without setting realtime priority.
1428	>	pthread_attr_setscope(attr, PTHREAD_SCOPE_BOUND_NP);
1429	>	#endif
1430	>	}
1431	>	#endif
1432	>	#endif
1433		}
1434
1435
#	Line 1166 \| Line 1437 \| *void Set_pthread_attr(pthread_attr_t at**
1437		* Mutexes
1438		*/
1439
1440	+	#ifdef HAVE_PTHREADS
1441	+
1442	+	struct B2_mutex {
1443	+	B2_mutex() {
1444	+	pthread_mutexattr_t attr;
1445	+	pthread_mutexattr_init(&attr);
1446	+	// Initialize the mutex for priority inheritance --
1447	+	// required for accurate timing.
1448	+	#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
1449	+	pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
1450	+	#endif
1451	+	#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
1452	+	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL);
1453	+	#endif
1454	+	#ifdef HAVE_PTHREAD_MUTEXATTR_SETPSHARED
1455	+	pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_PRIVATE);
1456	+	#endif
1457	+	pthread_mutex_init(&m, &attr);
1458	+	pthread_mutexattr_destroy(&attr);
1459	+	}
1460	+	~B2_mutex() {
1461	+	pthread_mutex_trylock(&m); // Make sure it's locked before
1462	+	pthread_mutex_unlock(&m); // unlocking it.
1463	+	pthread_mutex_destroy(&m);
1464	+	}
1465	+	pthread_mutex_t m;
1466	+	};
1467	+
1468	+	B2_mutex *B2_create_mutex(void)
1469	+	{
1470	+	return new B2_mutex;
1471	+	}
1472	+
1473	+	void B2_lock_mutex(B2_mutex *mutex)
1474	+	{
1475	+	pthread_mutex_lock(&mutex->m);
1476	+	}
1477	+
1478	+	void B2_unlock_mutex(B2_mutex *mutex)
1479	+	{
1480	+	pthread_mutex_unlock(&mutex->m);
1481	+	}
1482	+
1483	+	void B2_delete_mutex(B2_mutex *mutex)
1484	+	{
1485	+	delete mutex;
1486	+	}
1487	+
1488	+	#else
1489	+
1490		struct B2_mutex {
1491		int dummy;
1492		};
#	Line 1188 \| Line 1509 \| *void B2_delete_mutex(B2_mutex mutex)**
1509		delete mutex;
1510		}
1511
1512	+	#endif
1513	+
1514
1515		/*
1516		* Trigger signal USR2 from another thread
1517		*/
1518
1519	+	#if !EMULATED_PPC
1520		void TriggerInterrupt(void)
1521		{
1522	<	#if EMULATED_PPC
1523	<	WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
1200	<	#else
1201	<	#if 0
1202	<	WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1);
1203	<	#else
1204	<	if (ready_for_signals)
1522	>	if (ready_for_signals) {
1523	>	idle_resume();
1524		pthread_kill(emul_thread, SIGUSR2);
1525	<	#endif
1207	<	#endif
1525	>	}
1526		}
1527	+	#endif
1528
1529
1530		/*
#	Line 1231 \| Line 1550 \| void ClearInterruptFlag(uint32 flag)
1550
1551		void DisableInterrupt(void)
1552		{
1553	+	#if EMULATED_PPC
1554	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) + 1);
1555	+	#else
1556		atomic_add((int *)XLM_IRQ_NEST, 1);
1557	+	#endif
1558		}
1559
1560
#	Line 1241 \| Line 1564 \| void DisableInterrupt(void)
1564
1565		void EnableInterrupt(void)
1566		{
1567	+	#if EMULATED_PPC
1568	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) - 1);
1569	+	#else
1570		atomic_add((int *)XLM_IRQ_NEST, -1);
1571	+	#endif
1572		}
1573
1574
1248	–	#if !EMULATED_PPC
1575		/*
1576		* USR2 handler
1577		*/
1578
1579	<	static void sigusr2_handler(int sig, sigcontext_struct *sc)
1579	>	#if !EMULATED_PPC
1580	>	void sigusr2_handler(int sig, siginfo_t sip, void scp)
1581		{
1582	<	pt_regs *r = sc->regs;
1582	>	machine_regs *r = MACHINE_REGISTERS(scp);
1583	>
1584	>	#ifdef SYSTEM_CLOBBERS_R2
1585	>	// Restore pointer to Thread Local Storage
1586	>	set_r2(TOC);
1587	>	#endif
1588	>	#ifdef SYSTEM_CLOBBERS_R13
1589	>	// Restore pointer to .sdata section
1590	>	set_r13(R13);
1591	>	#endif
1592	>
1593	>	#ifdef USE_SDL_VIDEO
1594	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1595	>	SDL_PumpEvents();
1596	>	#endif
1597
1598		// Do nothing if interrupts are disabled
1599		if ((int32 )XLM_IRQ_NEST > 0)
#	Line 1266 \| Line 1607 \| static void sigusr2_handler(int sig, sig
1607		case MODE_68K:
1608		// 68k emulator active, trigger 68k interrupt level 1
1609		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1610	<	r->ccr \|= ntohl(kernel_data->v[0x674 >> 2]);
1610	>	r->cr() \|= ntohl(kernel_data->v[0x674 >> 2]);
1611		break;
1612
1613		#if INTERRUPTS_IN_NATIVE_MODE
1614		case MODE_NATIVE:
1615		// 68k emulator inactive, in nanokernel?
1616	<	if (r->gpr[1] != KernelDataAddr) {
1616	>	if (r->gpr(1) != KernelDataAddr) {
1617	>
1618	>	// Set extra stack for SIGSEGV handler
1619	>	sigaltstack(&extra_stack, NULL);
1620	>
1621		// Prepare for 68k interrupt level 1
1622		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1623		WriteMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc, ReadMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc) \| ntohl(kernel_data->v[0x674 >> 2]));
1624
1625		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1626	<	atomic_add((int32 *)XLM_IRQ_NEST, 1);
1626	>	DisableInterrupt();
1627		if (ROMType == ROMTYPE_NEWWORLD)
1628	<	ppc_interrupt(ROM_BASE + 0x312b1c, KernelDataAddr);
1628	>	ppc_interrupt(ROMBase + 0x312b1c, KernelDataAddr);
1629		else
1630	<	ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1630	>	ppc_interrupt(ROMBase + 0x312a3c, KernelDataAddr);
1631	>
1632	>	// Reset normal stack
1633	>	sigaltstack(&sig_stack, NULL);
1634		}
1635		break;
1636		#endif
#	Line 1293 \| Line 1641 \| static void sigusr2_handler(int sig, sig
1641		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1642
1643		// Set extra stack for SIGSEGV handler
1644	<	struct sigaltstack new_stack;
1297	<	new_stack.ss_sp = extra_stack;
1298	<	new_stack.ss_flags = 0;
1299	<	new_stack.ss_size = SIG_STACK_SIZE;
1300	<	sigaltstack(&new_stack, NULL);
1644	>	sigaltstack(&extra_stack, NULL);
1645		#if 1
1646		// Execute full 68k interrupt routine
1647		M68kRegisters r;
#	Line 1319 \| Line 1663 \| static void sigusr2_handler(int sig, sig
1663		if (InterruptFlags & INTFLAG_VIA) {
1664		ClearInterruptFlag(INTFLAG_VIA);
1665		ADBInterrupt();
1666	<	ExecutePPC(VideoVBL);
1666	>	ExecuteNative(NATIVE_VIDEO_VBL);
1667		}
1668		}
1669		#endif
1670	<	// Reset normal signal stack
1671	<	new_stack.ss_sp = sig_stack;
1328	<	new_stack.ss_flags = 0;
1329	<	new_stack.ss_size = SIG_STACK_SIZE;
1330	<	sigaltstack(&new_stack, NULL);
1670	>	// Reset normal stack
1671	>	sigaltstack(&sig_stack, NULL);
1672		}
1673		break;
1674		#endif
1334	–
1675		}
1676		}
1677	+	#endif
1678
1679
1680		/*
1681		* SIGSEGV handler
1682		*/
1683
1684	<	static void sigsegv_handler(int sig, sigcontext_struct *sc)
1684	>	#if !EMULATED_PPC
1685	>	static void sigsegv_handler(int sig, siginfo_t sip, void scp)
1686		{
1687	<	pt_regs *r = sc->regs;
1687	>	machine_regs *r = MACHINE_REGISTERS(scp);
1688	>
1689	>	// Get effective address
1690	>	uint32 addr = r->dar();
1691	>
1692	>	#ifdef SYSTEM_CLOBBERS_R2
1693	>	// Restore pointer to Thread Local Storage
1694	>	set_r2(TOC);
1695	>	#endif
1696	>	#ifdef SYSTEM_CLOBBERS_R13
1697	>	// Restore pointer to .sdata section
1698	>	set_r13(R13);
1699	>	#endif
1700	>
1701	>	#if ENABLE_VOSF
1702	>	// Handle screen fault
1703	>	#if SIGSEGV_CHECK_VERSION(1,0,0)
1704	>	sigsegv_info_t si;
1705	>	si.addr = (sigsegv_address_t)addr;
1706	>	si.pc = (sigsegv_address_t)r->pc();
1707	>	#endif
1708	>	extern bool Screen_fault_handler(sigsegv_info_t *sip);
1709	>	if (Screen_fault_handler(&si))
1710	>	return;
1711	>	#endif
1712	>
1713		num_segv++;
1714
1715	<	// Fault in Mac ROM or RAM?
1716	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) \|\| (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1715	>	// Fault in Mac ROM or RAM or DR Cache?
1716	>	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));
1717		if (mac_fault) {
1718
1352	–	// Get opcode and divide into fields
1353	–	uint32 opcode = ((uint32 )r->nip);
1354	–	uint32 primop = opcode >> 26;
1355	–	uint32 exop = (opcode >> 1) & 0x3ff;
1356	–	uint32 ra = (opcode >> 16) & 0x1f;
1357	–	uint32 rb = (opcode >> 11) & 0x1f;
1358	–	uint32 rd = (opcode >> 21) & 0x1f;
1359	–	int32 imm = (int16)(opcode & 0xffff);
1360	–
1719		// "VM settings" during MacOS 8 installation
1720	<	if (r->nip == ROM_BASE + 0x488160 && r->gpr[20] == 0xf8000000) {
1721	<	r->nip += 4;
1722	<	r->gpr[8] = 0;
1720	>	if (r->pc() == ROMBase + 0x488160 && r->gpr(20) == 0xf8000000) {
1721	>	r->pc() += 4;
1722	>	r->gpr(8) = 0;
1723		return;
1724
1725		// MacOS 8.5 installation
1726	<	} else if (r->nip == ROM_BASE + 0x488140 && r->gpr[16] == 0xf8000000) {
1727	<	r->nip += 4;
1728	<	r->gpr[8] = 0;
1726	>	} else if (r->pc() == ROMBase + 0x488140 && r->gpr(16) == 0xf8000000) {
1727	>	r->pc() += 4;
1728	>	r->gpr(8) = 0;
1729		return;
1730
1731		// MacOS 8 serial drivers on startup
1732	<	} else if (r->nip == ROM_BASE + 0x48e080 && (r->gpr[8] == 0xf3012002 \|\| r->gpr[8] == 0xf3012000)) {
1733	<	r->nip += 4;
1734	<	r->gpr[8] = 0;
1732	>	} else if (r->pc() == ROMBase + 0x48e080 && (r->gpr(8) == 0xf3012002 \|\| r->gpr(8) == 0xf3012000)) {
1733	>	r->pc() += 4;
1734	>	r->gpr(8) = 0;
1735		return;
1736
1737		// MacOS 8.1 serial drivers on startup
1738	<	} else if (r->nip == ROM_BASE + 0x48c5e0 && (r->gpr[20] == 0xf3012002 \|\| r->gpr[20] == 0xf3012000)) {
1739	<	r->nip += 4;
1738	>	} else if (r->pc() == ROMBase + 0x48c5e0 && (r->gpr(20) == 0xf3012002 \|\| r->gpr(20) == 0xf3012000)) {
1739	>	r->pc() += 4;
1740	>	return;
1741	>	} else if (r->pc() == ROMBase + 0x4a10a0 && (r->gpr(20) == 0xf3012002 \|\| r->gpr(20) == 0xf3012000)) {
1742	>	r->pc() += 4;
1743	>	return;
1744	>
1745	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
1746	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(16) == 0xf3012002 \|\| r->gpr(16) == 0xf3012000)) {
1747	>	r->pc() += 4;
1748		return;
1749	<	} else if (r->nip == ROM_BASE + 0x4a10a0 && (r->gpr[20] == 0xf3012002 \|\| r->gpr[20] == 0xf3012000)) {
1750	<	r->nip += 4;
1749	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(20) == 0xf3012002 \|\| r->gpr(20) == 0xf3012000)) {
1750	>	r->pc() += 4;
1751		return;
1752		}
1753
1754	+	// Get opcode and divide into fields
1755	+	uint32 opcode = ((uint32 )r->pc());
1756	+	uint32 primop = opcode >> 26;
1757	+	uint32 exop = (opcode >> 1) & 0x3ff;
1758	+	uint32 ra = (opcode >> 16) & 0x1f;
1759	+	uint32 rb = (opcode >> 11) & 0x1f;
1760	+	uint32 rd = (opcode >> 21) & 0x1f;
1761	+	int32 imm = (int16)(opcode & 0xffff);
1762	+
1763		// Analyze opcode
1764		enum {
1765		TYPE_UNKNOWN,
#	Line 1466 \| Line 1841 \| static void sigsegv_handler(int sig, sig
1841		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_NORM; break;
1842		case 45: // sthu
1843		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
1844	<	}
1845	<
1846	<	// Calculate effective address
1847	<	uint32 addr = 0;
1848	<	switch (addr_mode) {
1849	<	case MODE_X:
1850	<	case MODE_UX:
1851	<	if (ra == 0)
1852	<	addr = r->gpr[rb];
1853	<	else
1854	<	addr = r->gpr[ra] + r->gpr[rb];
1855	<	break;
1481	<	case MODE_NORM:
1482	<	case MODE_U:
1483	<	if (ra == 0)
1484	<	addr = (int32)(int16)imm;
1485	<	else
1486	<	addr = r->gpr[ra] + (int32)(int16)imm;
1844	>	#if EMULATE_UNALIGNED_LOADSTORE_MULTIPLE
1845	>	case 46: // lmw
1846	>	if ((addr % 4) != 0) {
1847	>	uint32 ea = addr;
1848	>	D(bug("WARNING: unaligned lmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1849	>	for (int i = rd; i <= 31; i++) {
1850	>	r->gpr(i) = ReadMacInt32(ea);
1851	>	ea += 4;
1852	>	}
1853	>	r->pc() += 4;
1854	>	goto rti;
1855	>	}
1856		break;
1857	<	default:
1857	>	case 47: // stmw
1858	>	if ((addr % 4) != 0) {
1859	>	uint32 ea = addr;
1860	>	D(bug("WARNING: unaligned stmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1861	>	for (int i = rd; i <= 31; i++) {
1862	>	WriteMacInt32(ea, r->gpr(i));
1863	>	ea += 4;
1864	>	}
1865	>	r->pc() += 4;
1866	>	goto rti;
1867	>	}
1868		break;
1869	+	#endif
1870		}
1871	<
1872	<	// Ignore ROM writes
1873	<	if (transfer_type == TYPE_STORE && addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
1874	<	// 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));
1871	>
1872	>	// Ignore ROM writes (including to the zero page, which is read-only)
1873	>	if (transfer_type == TYPE_STORE &&
1874	>	((addr >= ROMBase && addr < ROMBase + ROM_SIZE) \|\|
1875	>	(addr >= SheepMem::ZeroPage() && addr < SheepMem::ZeroPage() + SheepMem::PageSize()))) {
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->pc()));
1877		if (addr_mode == MODE_U \|\| addr_mode == MODE_UX)
1878	<	r->gpr[ra] = addr;
1879	<	r->nip += 4;
1878	>	r->gpr(ra) = addr;
1879	>	r->pc() += 4;
1880		goto rti;
1881		}
1882
1883		// Ignore illegal memory accesses?
1884		if (PrefsFindBool("ignoresegv")) {
1885		if (addr_mode == MODE_U \|\| addr_mode == MODE_UX)
1886	<	r->gpr[ra] = addr;
1886	>	r->gpr(ra) = addr;
1887		if (transfer_type == TYPE_LOAD)
1888	<	r->gpr[rd] = 0;
1889	<	r->nip += 4;
1888	>	r->gpr(rd) = 0;
1889	>	r->pc() += 4;
1890		goto rti;
1891		}
1892
#	Line 1512 \| Line 1894 \| static void sigsegv_handler(int sig, sig
1894		if (!PrefsFindBool("nogui")) {
1895		char str[256];
1896		if (transfer_type == TYPE_LOAD \|\| transfer_type == TYPE_STORE)
1897	<	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]);
1897	>	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));
1898		else
1899	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
1899	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
1900		ErrorAlert(str);
1901		QuitEmulator();
1902		return;
#	Line 1522 \| Line 1904 \| static void sigsegv_handler(int sig, sig
1904		}
1905
1906		// For all other errors, jump into debugger (sort of...)
1907	+	crash_reason = (sig == SIGBUS) ? "SIGBUS" : "SIGSEGV";
1908		if (!ready_for_signals) {
1909	<	printf("SIGSEGV\n");
1910	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
1909	>	printf("%s\n");
1910	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
1911		printf(
1912		" pc %08lx lr %08lx ctr %08lx msr %08lx\n"
1913		" xer %08lx cr %08lx \n"
#	Line 1536 \| Line 1919 \| static void sigsegv_handler(int sig, sig
1919		" r20 %08lx r21 %08lx r22 %08lx r23 %08lx\n"
1920		" r24 %08lx r25 %08lx r26 %08lx r27 %08lx\n"
1921		" r28 %08lx r29 %08lx r30 %08lx r31 %08lx\n",
1922	<	r->nip, r->link, r->ctr, r->msr,
1923	<	r->xer, r->ccr,
1924	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
1925	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
1926	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
1927	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
1928	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
1929	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
1930	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
1931	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
1922	>	crash_reason,
1923	>	r->pc(), r->lr(), r->ctr(), r->msr(),
1924	>	r->xer(), r->cr(),
1925	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
1926	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
1927	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
1928	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
1929	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
1930	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
1931	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
1932	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
1933		exit(1);
1934		QuitEmulator();
1935		return;
1936		} else {
1937		// We crashed. Save registers, tell tick thread and loop forever
1938	<	sigsegv_regs = (sigregs )r;
1938	>	build_sigregs(&sigsegv_regs, r);
1939		emul_thread_fatal = true;
1940		for (;;) ;
1941		}
#	Line 1563 \| Line 1947 \| rti:;
1947		* SIGILL handler
1948		*/
1949
1950	<	static void sigill_handler(int sig, sigcontext_struct *sc)
1950	>	static void sigill_handler(int sig, siginfo_t sip, void scp)
1951		{
1952	<	pt_regs *r = sc->regs;
1952	>	machine_regs *r = MACHINE_REGISTERS(scp);
1953		char str[256];
1954
1955	+	#ifdef SYSTEM_CLOBBERS_R2
1956	+	// Restore pointer to Thread Local Storage
1957	+	set_r2(TOC);
1958	+	#endif
1959	+	#ifdef SYSTEM_CLOBBERS_R13
1960	+	// Restore pointer to .sdata section
1961	+	set_r13(R13);
1962	+	#endif
1963	+
1964		// Fault in Mac ROM or RAM?
1965	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) \|\| (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1965	>	bool mac_fault = (r->pc() >= ROMBase) && (r->pc() < (ROMBase + ROM_AREA_SIZE)) \|\| (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
1966		if (mac_fault) {
1967
1968		// Get opcode and divide into fields
1969	<	uint32 opcode = ((uint32 )r->nip);
1969	>	uint32 opcode = ((uint32 )r->pc());
1970		uint32 primop = opcode >> 26;
1971		uint32 exop = (opcode >> 1) & 0x3ff;
1972		uint32 ra = (opcode >> 16) & 0x1f;
#	Line 1584 \| Line 1977 \| static void sigill_handler(int sig, sigc
1977		switch (primop) {
1978		case 9: // POWER instructions
1979		case 22:
1980	<	power_inst: sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->nip, r->gpr[1], opcode);
1980	>	power_inst: sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->pc(), r->gpr(1), opcode);
1981		ErrorAlert(str);
1982		QuitEmulator();
1983		return;
#	Line 1592 \| Line 1985 \| power_inst: sprintf(str, GetString(STR_
1985		case 31:
1986		switch (exop) {
1987		case 83: // mfmsr
1988	<	r->gpr[rd] = 0xf072;
1989	<	r->nip += 4;
1988	>	r->gpr(rd) = 0xf072;
1989	>	r->pc() += 4;
1990		goto rti;
1991
1992		case 210: // mtsr
1993		case 242: // mtsrin
1994		case 306: // tlbie
1995	<	r->nip += 4;
1995	>	r->pc() += 4;
1996		goto rti;
1997
1998		case 339: { // mfspr
#	Line 1615 \| Line 2008 \| power_inst: sprintf(str, GetString(STR_
2008		case 957: // PMC3
2009		case 958: // PMC4
2010		case 959: // SDA
2011	<	r->nip += 4;
2011	>	r->pc() += 4;
2012		goto rti;
2013		case 25: // SDR1
2014	<	r->gpr[rd] = 0xdead001f;
2015	<	r->nip += 4;
2014	>	r->gpr(rd) = 0xdead001f;
2015	>	r->pc() += 4;
2016		goto rti;
2017		case 287: // PVR
2018	<	r->gpr[rd] = PVR;
2019	<	r->nip += 4;
2018	>	r->gpr(rd) = PVR;
2019	>	r->pc() += 4;
2020		goto rti;
2021		}
2022		break;
#	Line 1659 \| Line 2052 \| power_inst: sprintf(str, GetString(STR_
2052		case 957: // PMC3
2053		case 958: // PMC4
2054		case 959: // SDA
2055	<	r->nip += 4;
2055	>	r->pc() += 4;
2056		goto rti;
2057		}
2058		break;
#	Line 1678 \| Line 2071 \| power_inst: sprintf(str, GetString(STR_
2071
2072		// In GUI mode, show error alert
2073		if (!PrefsFindBool("nogui")) {
2074	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
2074	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
2075		ErrorAlert(str);
2076		QuitEmulator();
2077		return;
#	Line 1686 \| Line 2079 \| power_inst: sprintf(str, GetString(STR_
2079		}
2080
2081		// For all other errors, jump into debugger (sort of...)
2082	+	crash_reason = "SIGILL";
2083		if (!ready_for_signals) {
2084	<	printf("SIGILL\n");
2085	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
2084	>	printf("%s\n");
2085	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
2086		printf(
2087		" pc %08lx lr %08lx ctr %08lx msr %08lx\n"
2088		" xer %08lx cr %08lx \n"
#	Line 1700 \| Line 2094 \| power_inst: sprintf(str, GetString(STR_
2094		" r20 %08lx r21 %08lx r22 %08lx r23 %08lx\n"
2095		" r24 %08lx r25 %08lx r26 %08lx r27 %08lx\n"
2096		" r28 %08lx r29 %08lx r30 %08lx r31 %08lx\n",
2097	<	r->nip, r->link, r->ctr, r->msr,
2098	<	r->xer, r->ccr,
2099	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
2100	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
2101	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
2102	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
2103	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
2104	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
2105	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
2106	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
2097	>	crash_reason,
2098	>	r->pc(), r->lr(), r->ctr(), r->msr(),
2099	>	r->xer(), r->cr(),
2100	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
2101	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
2102	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
2103	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
2104	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
2105	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
2106	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
2107	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
2108		exit(1);
2109		QuitEmulator();
2110		return;
2111		} else {
2112		// We crashed. Save registers, tell tick thread and loop forever
2113	<	sigsegv_regs = (sigregs )r;
2113	>	build_sigregs(&sigsegv_regs, r);
2114		emul_thread_fatal = true;
2115		for (;;) ;
2116		}
#	Line 1725 \| Line 2120 \| rti:;
2120
2121
2122		/*
2123	+	* Helpers to share 32-bit addressable data with MacOS
2124	+	*/
2125	+
2126	+	bool SheepMem::Init(void)
2127	+	{
2128	+	// Size of a native page
2129	+	page_size = getpagesize();
2130	+
2131	+	// Allocate SheepShaver globals
2132	+	proc = base;
2133	+	if (vm_mac_acquire_fixed(base, size) < 0)
2134	+	return false;
2135	+
2136	+	// Allocate page with all bits set to 0, right in the middle
2137	+	// This is also used to catch undesired overlaps between proc and data areas
2138	+	zero_page = proc + (size / 2);
2139	+	Mac_memset(zero_page, 0, page_size);
2140	+	if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0)
2141	+	return false;
2142	+
2143	+	#if EMULATED_PPC
2144	+	// Allocate alternate stack for PowerPC interrupt routine
2145	+	sig_stack = base + size;
2146	+	if (vm_mac_acquire_fixed(sig_stack, SIG_STACK_SIZE) < 0)
2147	+	return false;
2148	+	#endif
2149	+
2150	+	data = base + size;
2151	+	return true;
2152	+	}
2153	+
2154	+	void SheepMem::Exit(void)
2155	+	{
2156	+	if (data) {
2157	+	// Delete SheepShaver globals
2158	+	vm_mac_release(base, size);
2159	+
2160	+	#if EMULATED_PPC
2161	+	// Delete alternate stack for PowerPC interrupt routine
2162	+	vm_mac_release(sig_stack, SIG_STACK_SIZE);
2163	+	#endif
2164	+	}
2165	+	}
2166	+
2167	+
2168	+	/*
2169		* Display alert
2170		*/
2171
#	Line 1773 \| Line 2214 \| void display_alert(int title_id, int pre
2214
2215		void ErrorAlert(const char *text)
2216		{
2217	<	#ifdef ENABLE_GTK
2217	>	if (gui_connection) {
2218	>	if (rpc_method_invoke(gui_connection, RPC_METHOD_ERROR_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2219	>	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2220	>	return;
2221	>	}
2222	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2223		if (PrefsFindBool("nogui") \|\| x_display == NULL) {
2224		printf(GetString(STR_SHELL_ERROR_PREFIX), text);
2225		return;
#	Line 1792 \| Line 2238 \| *void ErrorAlert(const char text)**
2238
2239		void WarningAlert(const char *text)
2240		{
2241	<	#ifdef ENABLE_GTK
2241	>	if (gui_connection) {
2242	>	if (rpc_method_invoke(gui_connection, RPC_METHOD_WARNING_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2243	>	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2244	>	return;
2245	>	}
2246	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2247		if (PrefsFindBool("nogui") \|\| x_display == NULL) {
2248		printf(GetString(STR_SHELL_WARNING_PREFIX), text);
2249		return;

Diff Legend

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+Removed lines
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Comparing SheepShaver/src/Unix/main_unix.cpp (file contents): Revision 1.2 by cebix, 2002-02-21T15:12:12Z vs. Revision 1.87 by asvitkine, 2009-08-26T00:11:56Z

Diff Legend

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.2 by cebix, 2002-02-21T15:12:12Z vs.
Revision 1.87 by asvitkine, 2009-08-26T00:11:56Z