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

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.19 by gbeauche, 2003-12-05T12:41:19Z vs.
Revision 1.102 by asvitkine, 2012-01-01T23:18:36Z

#	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 "thunks.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 124 | 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 132 | 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 146 | Line 161
161		const char ROM_FILE_NAME[] = "ROM";
162		const char ROM_FILE_NAME2[] = "Mac OS ROM";
163
164	<	const uintptr 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
156	<	// (see arch/ppc/kernel/signal.c)
157	<	typedef struct {
158	<	uint32 u[4];
159	<	} __attribute((aligned(16))) vector128;
160	<	#include <linux/elf.h>
161	<
162	<	struct sigregs {
163	<	elf_gregset_t   gp_regs;                                // Identical to pt_regs
164	<	double                  fp_regs[ELF_NFPREG];    // f0..f31 and fpsrc
165	<	//more (uninteresting) stuff following here
166	<	};
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	+	#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 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 204 | 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::top = 0;                                      // Top of SheepShaver data (stack like storage)
245	>	uintptr SheepMem::proc;                                         // Bottom address of SheepShave procedures
246	>	uintptr SheepMem::data;                                         // Top of SheepShaver data (stack like storage)
247
248
249		// Prototypes
250	+	static bool kernel_data_init(void);
251	+	static void kernel_data_exit(void);
252		static void Quit(void);
253		static void *emul_func(void *arg);
254		static void *nvram_func(void *arg);
255		static void *tick_func(void *arg);
256		#if EMULATED_PPC
227	–	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
240	–	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 253 | 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 293 | 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 305 | Line 369 | static void usage(const char *prg_name)
369		exit(0);
370		}
371
372	<	int main(int argc, char **argv)
372	>	static bool valid_vmdir(const char *path)
373		{
374	<	char str[256];
375	<	uint32 *boot_globs;
376	<	int16 i16;
377	<	int rom_fd;
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	>	static void get_system_info(void)
388	>	{
389	>	#if !EMULATED_PPC
390		FILE *proc_file;
391	<	const char *rom_path;
391	>	#endif
392	>
393	>	PVR = 0x00040000;                       // Default: 604
394	>	CPUClockSpeed = 100000000;      // Default: 100MHz
395	>	BusClockSpeed = 100000000;      // Default: 100MHz
396	>	TimebaseSpeed =  25000000;      // Default:  25MHz
397	>
398	>	#if EMULATED_PPC
399	>	PVR = 0x000c0000;                       // Default: 7400 (with AltiVec)
400	>	#elif defined(__APPLE__) && defined(__MACH__)
401	>	proc_file = popen("ioreg -c IOPlatformDevice", "r");
402	>	if (proc_file) {
403	>	char line[256];
404	>	bool powerpc_node = false;
405	>	while (fgets(line, sizeof(line) - 1, proc_file)) {
406	>	// Read line
407	>	int len = strlen(line);
408	>	if (len == 0)
409	>	continue;
410	>	line[len - 1] = 0;
411	>
412	>	// Parse line
413	>	if (strstr(line, "o PowerPC,"))
414	>	powerpc_node = true;
415	>	else if (powerpc_node) {
416	>	uint32 value;
417	>	char head[256];
418	>	if (sscanf(line, "%[ |]\"cpu-version\" = <%x>", head, &value) == 2)
419	>	PVR = value;
420	>	else if (sscanf(line, "%[ |]\"clock-frequency\" = <%x>", head, &value) == 2)
421	>	CPUClockSpeed = value;
422	>	else if (sscanf(line, "%[ |]\"bus-frequency\" = <%x>", head, &value) == 2)
423	>	BusClockSpeed = value;
424	>	else if (sscanf(line, "%[ |]\"timebase-frequency\" = <%x>", head, &value) == 2)
425	>	TimebaseSpeed = value;
426	>	else if (strchr(line, '}'))
427	>	powerpc_node = false;
428	>	}
429	>	}
430	>	fclose(proc_file);
431	>	} else {
432	>	char str[256];
433	>	sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
434	>	WarningAlert(str);
435	>	}
436	>	#else
437	>	proc_file = fopen("/proc/cpuinfo", "r");
438	>	if (proc_file) {
439	>	// CPU specs from Linux kernel
440	>	// TODO: make it more generic with features (e.g. AltiVec) and
441	>	// cache information and friends for NameRegistry
442	>	static const struct {
443	>	uint32 pvr_mask;
444	>	uint32 pvr_value;
445	>	const char *cpu_name;
446	>	}
447	>	cpu_specs[] = {
448	>	{ 0xffff0000, 0x00010000, "601" },
449	>	{ 0xffff0000, 0x00030000, "603" },
450	>	{ 0xffff0000, 0x00060000, "603e" },
451	>	{ 0xffff0000, 0x00070000, "603ev" },
452	>	{ 0xffff0000, 0x00040000, "604" },
453	>	{ 0xfffff000, 0x00090000, "604e" },
454	>	{ 0xffff0000, 0x00090000, "604r" },
455	>	{ 0xffff0000, 0x000a0000, "604ev" },
456	>	{ 0xffffffff, 0x00084202, "740/750" },
457	>	{ 0xfffff000, 0x00083000, "745/755" },
458	>	{ 0xfffffff0, 0x00080100, "750CX" },
459	>	{ 0xfffffff0, 0x00082200, "750CX" },
460	>	{ 0xfffffff0, 0x00082210, "750CXe" },
461	>	{ 0xffffff00, 0x70000100, "750FX" },
462	>	{ 0xffffffff, 0x70000200, "750FX" },
463	>	{ 0xffff0000, 0x70000000, "750FX" },
464	>	{ 0xffff0000, 0x70020000, "750GX" },
465	>	{ 0xffff0000, 0x00080000, "740/750" },
466	>	{ 0xffffffff, 0x000c1101, "7400 (1.1)" },
467	>	{ 0xffff0000, 0x000c0000, "7400" },
468	>	{ 0xffff0000, 0x800c0000, "7410" },
469	>	{ 0xffffffff, 0x80000200, "7450" },
470	>	{ 0xffffffff, 0x80000201, "7450" },
471	>	{ 0xffff0000, 0x80000000, "7450" },
472	>	{ 0xffffff00, 0x80010100, "7455" },
473	>	{ 0xffffffff, 0x80010200, "7455" },
474	>	{ 0xffff0000, 0x80010000, "7455" },
475	>	{ 0xffff0000, 0x80020000, "7457" },
476	>	{ 0xffff0000, 0x80030000, "7447A" },
477	>	{ 0xffff0000, 0x80040000, "7448" },
478	>	{ 0x7fff0000, 0x00810000, "82xx" },
479	>	{ 0x7fff0000, 0x00820000, "8280" },
480	>	{ 0xffff0000, 0x00400000, "Power3 (630)" },
481	>	{ 0xffff0000, 0x00410000, "Power3 (630+)" },
482	>	{ 0xffff0000, 0x00360000, "I-star" },
483	>	{ 0xffff0000, 0x00370000, "S-star" },
484	>	{ 0xffff0000, 0x00350000, "Power4" },
485	>	{ 0xffff0000, 0x00390000, "PPC970" },
486	>	{ 0xffff0000, 0x003c0000, "PPC970FX" },
487	>	{ 0xffff0000, 0x00440000, "PPC970MP" },
488	>	{ 0xffff0000, 0x003a0000, "POWER5 (gr)" },
489	>	{ 0xffff0000, 0x003b0000, "POWER5+ (gs)" },
490	>	{ 0xffff0000, 0x003e0000, "POWER6" },
491	>	{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
492	>	{ 0x7fff0000, 0x00900000, "PA6T" },
493	>	{ 0, 0, 0 }
494	>	};
495	>
496	>	char line[256];
497	>	while(fgets(line, 255, proc_file)) {
498	>	// Read line
499	>	int len = strlen(line);
500	>	if (len == 0)
501	>	continue;
502	>	line[len-1] = 0;
503	>
504	>	// Parse line
505	>	int i;
506	>	float f;
507	>	char value[256];
508	>	if (sscanf(line, "cpu : %[^,]", value) == 1) {
509	>	// Search by name
510	>	const char *cpu_name = NULL;
511	>	for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
512	>	if (strcmp(cpu_specs[i].cpu_name, value) == 0) {
513	>	cpu_name = cpu_specs[i].cpu_name;
514	>	PVR = cpu_specs[i].pvr_value;
515	>	break;
516	>	}
517	>	}
518	>	if (cpu_name == NULL)
519	>	printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
520	>	else
521	>	printf("Found a PowerPC %s processor\n", cpu_name);
522	>	}
523	>	if (sscanf(line, "clock : %fMHz", &f) == 1)
524	>	CPUClockSpeed = BusClockSpeed = ((int64)f) * 1000000;
525	>	else if (sscanf(line, "clock : %dMHz", &i) == 1)
526	>	CPUClockSpeed = BusClockSpeed = i * 1000000;
527	>	}
528	>	fclose(proc_file);
529	>	} else {
530	>	char str[256];
531	>	sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
532	>	WarningAlert(str);
533	>	}
534	>
535	>	// Get actual bus frequency
536	>	proc_file = fopen("/proc/device-tree/clock-frequency", "r");
537	>	if (proc_file) {
538	>	union { uint8 b[4]; uint32 l; } value;
539	>	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
540	>	BusClockSpeed = value.l;
541	>	fclose(proc_file);
542	>	}
543	>
544	>	// Get actual timebase frequency
545	>	TimebaseSpeed = BusClockSpeed / 4;
546	>	DIR *cpus_dir;
547	>	if ((cpus_dir = opendir("/proc/device-tree/cpus")) != NULL) {
548	>	struct dirent *cpu_entry;
549	>	while ((cpu_entry = readdir(cpus_dir)) != NULL) {
550	>	if (strstr(cpu_entry->d_name, "PowerPC,") == cpu_entry->d_name) {
551	>	char timebase_freq_node[256];
552	>	sprintf(timebase_freq_node, "/proc/device-tree/cpus/%s/timebase-frequency", cpu_entry->d_name);
553	>	proc_file = fopen(timebase_freq_node, "r");
554	>	if (proc_file) {
555	>	union { uint8 b[4]; uint32 l; } value;
556	>	if (fread(value.b, sizeof(value), 1, proc_file) == 1)
557	>	TimebaseSpeed = value.l;
558	>	fclose(proc_file);
559	>	}
560	>	}
561	>	}
562	>	closedir(cpus_dir);
563	>	}
564	>	#endif
565	>
566	>	// Remap any newer G4/G5 processor to plain G4 for compatibility
567	>	switch (PVR >> 16) {
568	>	case 0x8000:                            // 7450
569	>	case 0x8001:                            // 7455
570	>	case 0x8002:                            // 7457
571	>	case 0x8003:                            // 7447A
572	>	case 0x8004:                            // 7448
573	>	case 0x0039:                            //  970
574	>	case 0x003c:                            //  970FX
575	>	case 0x0044:                            //  970MP
576	>	PVR = 0x000c0000;               // 7400
577	>	break;
578	>	}
579	>	D(bug("PVR: %08x (assumed)\n", PVR));
580	>	}
581	>
582	>	static bool load_mac_rom(void)
583	>	{
584		uint32 rom_size, actual;
585		uint8 *rom_tmp;
586	<	time_t now, expire;
586	>	const char *rom_path = PrefsFindString("rom");
587	>	int rom_fd = open(rom_path && *rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
588	>	if (rom_fd < 0) {
589	>	rom_fd = open(ROM_FILE_NAME2, O_RDONLY);
590	>	if (rom_fd < 0) {
591	>	ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
592	>	return false;
593	>	}
594	>	}
595	>	printf("%s", GetString(STR_READING_ROM_FILE));
596	>	rom_size = lseek(rom_fd, 0, SEEK_END);
597	>	lseek(rom_fd, 0, SEEK_SET);
598	>	rom_tmp = new uint8[ROM_SIZE];
599	>	actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
600	>	close(rom_fd);
601	>
602	>	// Decode Mac ROM
603	>	if (!DecodeROM(rom_tmp, actual)) {
604	>	if (rom_size != 4*1024*1024) {
605	>	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
606	>	return false;
607	>	} else {
608	>	ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
609	>	return false;
610	>	}
611	>	}
612	>	delete[] rom_tmp;
613	>	return true;
614	>	}
615	>
616	>	static bool install_signal_handlers(void)
617	>	{
618	>	char str[256];
619	>	#if !EMULATED_PPC
620	>	// Create and install stacks for signal handlers
621	>	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
622	>	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
623	>	if (sig_stack.ss_sp == NULL) {
624	>	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
625	>	return false;
626	>	}
627	>	sig_stack.ss_flags = 0;
628	>	sig_stack.ss_size = SIG_STACK_SIZE;
629	>	if (sigaltstack(&sig_stack, NULL) < 0) {
630	>	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
631	>	ErrorAlert(str);
632	>	return false;
633	>	}
634	>	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
635	>	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
636	>	if (extra_stack.ss_sp == NULL) {
637	>	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
638	>	return false;
639	>	}
640	>	extra_stack.ss_flags = 0;
641	>	extra_stack.ss_size = SIG_STACK_SIZE;
642	>
643	>	// Install SIGSEGV and SIGBUS handlers
644	>	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
645	>	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
646	>	sigsegv_action.sa_sigaction = sigsegv_handler;
647	>	sigsegv_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
648	>	#ifdef HAVE_SIGNAL_SA_RESTORER
649	>	sigsegv_action.sa_restorer = NULL;
650	>	#endif
651	>	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
652	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
653	>	ErrorAlert(str);
654	>	return false;
655	>	}
656	>	if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
657	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGBUS", strerror(errno));
658	>	ErrorAlert(str);
659	>	return false;
660	>	}
661	>	#else
662	>	// Install SIGSEGV handler for CPU emulator
663	>	if (!sigsegv_install_handler(sigsegv_handler)) {
664	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
665	>	ErrorAlert(str);
666	>	return false;
667	>	}
668	>	#endif
669	>	return true;
670	>	}
671	>
672	>	#ifdef USE_SDL
673	>	static bool init_sdl()
674	>	{
675	>	int sdl_flags = 0;
676	>	#ifdef USE_SDL_VIDEO
677	>	sdl_flags |= SDL_INIT_VIDEO;
678	>	#endif
679	>	#ifdef USE_SDL_AUDIO
680	>	sdl_flags |= SDL_INIT_AUDIO;
681	>	#endif
682	>	assert(sdl_flags != 0);
683	>
684	>	#ifdef USE_SDL_VIDEO
685	>	// Don't let SDL block the screensaver
686	>	setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", TRUE);
687	>
688	>	// Make SDL pass through command-clicks and option-clicks unaltered
689	>	setenv("SDL_HAS3BUTTONMOUSE", "1", TRUE);
690	>	#endif
691	>
692	>	if (SDL_Init(sdl_flags) == -1) {
693	>	char str[256];
694	>	sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
695	>	ErrorAlert(str);
696	>	return false;
697	>	}
698	>	atexit(SDL_Quit);
699	>
700	>	// Don't let SDL catch SIGINT and SIGTERM signals
701	>	signal(SIGINT, SIG_DFL);
702	>	signal(SIGTERM, SIG_DFL);
703	>	return true;
704	>	}
705	>	#endif
706	>
707	>	int main(int argc, char **argv)
708	>	{
709	>	char str[256];
710	>	bool memory_mapped_from_zero, ram_rom_areas_contiguous;
711	>	const char *vmdir = NULL;
712
713		// Initialize variables
714		RAMBase = 0;
#	Line 326 | Line 719 | int main(int argc, char **argv)
719		printf(" %s\n", GetString(STR_ABOUT_TEXT2));
720
721		#if !EMULATED_PPC
722	+	#ifdef SYSTEM_CLOBBERS_R2
723		// Get TOC pointer
724	<	TOC = get_toc();
724	>	TOC = get_r2();
725	>	#endif
726	>	#ifdef SYSTEM_CLOBBERS_R13
727	>	// Get r13 register
728	>	R13 = get_r13();
729		#endif
332	–
333	–	#ifdef ENABLE_GTK
334	–	// Init GTK
335	–	gtk_set_locale();
336	–	gtk_init(&argc, &argv);
730		#endif
338	–
339	–	// Read preferences
340	–	PrefsInit(argc, argv);
731
732		// Parse command line arguments
733		for (int i=1; i<argc; i++) {
734		if (strcmp(argv[i], "--help") == 0) {
735		usage(argv[0]);
736	+	#ifndef USE_SDL_VIDEO
737		} else if (strcmp(argv[i], "--display") == 0) {
738		i++;
739		if (i < argc)
740		x_display_name = strdup(argv[i]);
741	<	} else if (argv[i][0] == '-') {
741	>	#endif
742	>	} else if (strcmp(argv[i], "--gui-connection") == 0) {
743	>	argv[i++] = NULL;
744	>	if (i < argc) {
745	>	gui_connection_path = argv[i];
746	>	argv[i] = NULL;
747	>	}
748	>	} else if (valid_vmdir(argv[i])) {
749	>	vmdir = argv[i];
750	>	argv[i] = NULL;
751	>	printf("Using %s as vmdir.\n", vmdir);
752	>	if (chdir(vmdir)) {
753	>	printf("Failed to chdir to %s. Good bye.", vmdir);
754	>	exit(1);
755	>	}
756	>	break;
757	>	}
758	>	}
759	>
760	>	// Remove processed arguments
761	>	for (int i=1; i<argc; i++) {
762	>	int k;
763	>	for (k=i; k<argc; k++)
764	>	if (argv[k] != NULL)
765	>	break;
766	>	if (k > i) {
767	>	k -= i;
768	>	for (int j=i+k; j<argc; j++)
769	>	argv[j-k] = argv[j];
770	>	argc -= k;
771	>	}
772	>	}
773	>
774	>	// Connect to the external GUI
775	>	if (gui_connection_path) {
776	>	if ((gui_connection = rpc_init_client(gui_connection_path)) == NULL) {
777	>	fprintf(stderr, "Failed to initialize RPC client connection to the GUI\n");
778	>	return 1;
779	>	}
780	>	}
781	>
782	>	#ifdef ENABLE_GTK
783	>	if (!gui_connection) {
784	>	// Init GTK
785	>	gtk_set_locale();
786	>	gtk_init(&argc, &argv);
787	>	}
788	>	#endif
789	>
790	>	// Read preferences
791	>	PrefsInit(vmdir, argc, argv);
792	>
793	>	// Any command line arguments left?
794	>	for (int i=1; i<argc; i++) {
795	>	if (argv[i][0] == '-') {
796		fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
797		usage(argv[0]);
798		}
799		}
800
801	+	#ifdef USE_SDL
802	+	// Initialize SDL system
803	+	if (!init_sdl())
804	+	goto quit;
805	+	#endif
806	+
807	+	#ifndef USE_SDL_VIDEO
808		// Open display
809		x_display = XOpenDisplay(x_display_name);
810		if (x_display == NULL) {
#	Line 366 | Line 818 | int main(int argc, char **argv)
818		// Fork out, so we can return from fullscreen mode when things get ugly
819		XF86DGAForkApp(DefaultScreen(x_display));
820		#endif
821	+	#endif
822
823		#ifdef ENABLE_MON
824		// Initialize mon
825		mon_init();
826		#endif
827
828	<	// Get system info
829	<	PVR = 0x00040000;                       // Default: 604
830	<	CPUClockSpeed = 100000000;      // Default: 100MHz
378	<	BusClockSpeed = 100000000;      // Default: 100MHz
379	<	#if !EMULATED_PPC
380	<	proc_file = fopen("/proc/cpuinfo", "r");
381	<	if (proc_file) {
382	<	char line[256];
383	<	while(fgets(line, 255, proc_file)) {
384	<	// Read line
385	<	int len = strlen(line);
386	<	if (len == 0)
387	<	continue;
388	<	line[len-1] = 0;
828	>	// Install signal handlers
829	>	if (!install_signal_handlers())
830	>	goto quit;
831
832	<	// Parse line
833	<	int i;
834	<	char value[256];
835	<	if (sscanf(line, "cpu : %s", value) == 1) {
836	<	if (strcmp(value, "601") == 0)
395	<	PVR = 0x00010000;
396	<	else if (strcmp(value, "603") == 0)
397	<	PVR = 0x00030000;
398	<	else if (strcmp(value, "604") == 0)
399	<	PVR = 0x00040000;
400	<	else if (strcmp(value, "603e") == 0)
401	<	PVR = 0x00060000;
402	<	else if (strcmp(value, "603ev") == 0)
403	<	PVR = 0x00070000;
404	<	else if (strcmp(value, "604e") == 0)
405	<	PVR = 0x00090000;
406	<	else if (strcmp(value, "604ev5") == 0)
407	<	PVR = 0x000a0000;
408	<	else if (strcmp(value, "750") == 0)
409	<	PVR = 0x00080000;
410	<	else if (strcmp(value, "821") == 0)
411	<	PVR = 0x00320000;
412	<	else if (strcmp(value, "860") == 0)
413	<	PVR = 0x00500000;
414	<	else
415	<	printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
416	<	}
417	<	if (sscanf(line, "clock : %dMHz", &i) == 1)
418	<	CPUClockSpeed = BusClockSpeed = i * 1000000;
419	<	}
420	<	fclose(proc_file);
421	<	} else {
422	<	sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
423	<	WarningAlert(str);
424	<	}
425	<	#endif
426	<	D(bug("PVR: %08x (assumed)\n", PVR));
832	>	// Initialize VM system
833	>	vm_init();
834	>
835	>	// Get system info
836	>	get_system_info();
837
838		// Init system routines
839		SysInit();
#	Line 446 | Line 856 | int main(int argc, char **argv)
856		goto quit;
857		}
858
859	<	// Create Low Memory area (0x0000..0x3000)
860	<	if (vm_acquire_fixed((char *)0, 0x3000) < 0) {
451	<	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
452	<	ErrorAlert(str);
859	>	// Create areas for Kernel Data
860	>	if (!kernel_data_init())
861		goto quit;
862	<	}
863	<	lm_area_mapped = true;
862	>	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
863	>	emulator_data = &kernel_data->ed;
864	>	KernelDataAddr = KERNEL_DATA_BASE;
865	>	D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE));
866	>	D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
867
868	<	// Create areas for Kernel Data
869	<	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
870	<	if (kernel_area == -1) {
460	<	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
868	>	// Create area for DR Cache
869	>	if (vm_mac_acquire_fixed(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
870	>	sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
871		ErrorAlert(str);
872		goto quit;
873		}
874	<	if (shmat(kernel_area, (void *)KERNEL_DATA_BASE, 0) < 0) {
875	<	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
874	>	dr_emulator_area_mapped = true;
875	>	if (vm_mac_acquire_fixed(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
876	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
877		ErrorAlert(str);
878		goto quit;
879		}
880	<	if (shmat(kernel_area, (void *)KERNEL_DATA2_BASE, 0) < 0) {
881	<	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
880	>	dr_cache_area_mapped = true;
881	>	#if !EMULATED_PPC
882	>	if (vm_protect((char *)DR_CACHE_BASE, DR_CACHE_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
883	>	sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
884		ErrorAlert(str);
885		goto quit;
886		}
887	<	kernel_data = (KernelData *)KERNEL_DATA_BASE;
888	<	emulator_data = &kernel_data->ed;
889	<	KernelDataAddr = KERNEL_DATA_BASE;
477	<	D(bug("Kernel Data at %p, Emulator Data at %p\n", kernel_data, emulator_data));
887	>	#endif
888	>	DRCacheAddr = DR_CACHE_BASE;
889	>	D(bug("DR Cache at %p\n", DRCacheAddr));
890
891		// Create area for SheepShaver data
892		if (!SheepMem::Init()) {
#	Line 482 | Line 894 | int main(int argc, char **argv)
894		ErrorAlert(str);
895		goto quit;
896		}
897	<
486	<	// Create area for Mac ROM
487	<	if (vm_acquire_fixed((char *)ROM_BASE, ROM_AREA_SIZE) < 0) {
488	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
489	<	ErrorAlert(str);
490	<	goto quit;
491	<	}
492	<	#if !EMULATED_PPC || defined(__powerpc__)
493	<	if (vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
494	<	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
495	<	ErrorAlert(str);
496	<	goto quit;
497	<	}
498	<	#endif
499	<	rom_area_mapped = true;
500	<	D(bug("ROM area at %08x\n", ROM_BASE));
501	<
897	>
898		// Create area for Mac RAM
899		RAMSize = PrefsFindInt32("ramsize");
900		if (RAMSize < 8*1024*1024) {
901		WarningAlert(GetString(STR_SMALL_RAM_WARN));
902		RAMSize = 8*1024*1024;
903		}
904	<
905	<	if (vm_acquire_fixed((char *)RAM_BASE, RAMSize) < 0) {
906	<	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
907	<	ErrorAlert(str);
908	<	goto quit;
904	>	memory_mapped_from_zero = false;
905	>	ram_rom_areas_contiguous = false;
906	>	#if REAL_ADDRESSING && HAVE_LINKER_SCRIPT
907	>	if (vm_mac_acquire_fixed(0, RAMSize) == 0) {
908	>	D(bug("Could allocate RAM from 0x0000\n"));
909	>	RAMBase = 0;
910	>	RAMBaseHost = Mac2HostAddr(RAMBase);
911	>	memory_mapped_from_zero = true;
912	>	}
913	>	#endif
914	>	if (!memory_mapped_from_zero) {
915	>	#ifndef PAGEZERO_HACK
916	>	// Create Low Memory area (0x0000..0x3000)
917	>	if (vm_mac_acquire_fixed(0, 0x3000) < 0) {
918	>	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
919	>	ErrorAlert(str);
920	>	goto quit;
921	>	}
922	>	lm_area_mapped = true;
923	>	#endif
924	>	#if REAL_ADDRESSING
925	>	// Allocate RAM at any address. Since ROM must be higher than RAM, allocate the RAM
926	>	// and ROM areas contiguously, plus a little extra to allow for ROM address alignment.
927	>	RAMBaseHost = vm_mac_acquire(RAMSize + ROM_AREA_SIZE + ROM_ALIGNMENT);
928	>	if (RAMBaseHost == VM_MAP_FAILED) {
929	>	sprintf(str, GetString(STR_RAM_ROM_MMAP_ERR), strerror(errno));
930	>	ErrorAlert(str);
931	>	goto quit;
932	>	}
933	>	RAMBase = Host2MacAddr(RAMBaseHost);
934	>	ROMBase = (RAMBase + RAMSize + ROM_ALIGNMENT -1) & -ROM_ALIGNMENT;
935	>	ROMBaseHost = Mac2HostAddr(ROMBase);
936	>	ram_rom_areas_contiguous = true;
937	>	#else
938	>	if (vm_mac_acquire_fixed(RAM_BASE, RAMSize) < 0) {
939	>	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
940	>	ErrorAlert(str);
941	>	goto quit;
942	>	}
943	>	RAMBase = RAM_BASE;
944	>	RAMBaseHost = Mac2HostAddr(RAMBase);
945	>	#endif
946		}
947		#if !EMULATED_PPC
948	<	if (vm_protect((char *)RAM_BASE, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
948	>	if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
949		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
950		ErrorAlert(str);
951		goto quit;
952		}
953		#endif
521	–	RAMBase = RAM_BASE;
954		ram_area_mapped = true;
955	<	D(bug("RAM area at %08x\n", RAMBase));
955	>	D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
956
957	<	if (RAMBase > ROM_BASE) {
958	<	ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
957	>	if (RAMBase > KernelDataAddr) {
958	>	ErrorAlert(GetString(STR_RAM_AREA_TOO_HIGH_ERR));
959		goto quit;
960		}
529	–
530	–	// Load Mac ROM
531	–	rom_path = PrefsFindString("rom");
532	–	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
533	–	if (rom_fd < 0) {
534	–	rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME2, O_RDONLY);
535	–	if (rom_fd < 0) {
536	–	ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
537	–	goto quit;
538	–	}
539	–	}
540	–	printf(GetString(STR_READING_ROM_FILE));
541	–	rom_size = lseek(rom_fd, 0, SEEK_END);
542	–	lseek(rom_fd, 0, SEEK_SET);
543	–	rom_tmp = new uint8[ROM_SIZE];
544	–	actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
545	–	close(rom_fd);
961
962	<	// Decode Mac ROM
963	<	if (!DecodeROM(rom_tmp, actual)) {
964	<	if (rom_size != 4*1024*1024) {
965	<	ErrorAlert(GetString(STR_ROM_SIZE_ERR));
966	<	goto quit;
552	<	} else {
553	<	ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
962	>	// Create area for Mac ROM
963	>	if (!ram_rom_areas_contiguous) {
964	>	if (vm_mac_acquire_fixed(ROM_BASE, ROM_AREA_SIZE) < 0) {
965	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
966	>	ErrorAlert(str);
967		goto quit;
968		}
969	+	ROMBase = ROM_BASE;
970	+	ROMBaseHost = Mac2HostAddr(ROMBase);
971		}
972	<	delete[] rom_tmp;
973	<
974	<	// Load NVRAM
975	<	XPRAMInit();
561	<
562	<	// Set boot volume
563	<	i16 = PrefsFindInt32("bootdrive");
564	<	XPRAM[0x1378] = i16 >> 8;
565	<	XPRAM[0x1379] = i16 & 0xff;
566	<	i16 = PrefsFindInt32("bootdriver");
567	<	XPRAM[0x137a] = i16 >> 8;
568	<	XPRAM[0x137b] = i16 & 0xff;
569	<
570	<	// Create BootGlobs at top of Mac memory
571	<	memset((void *)(RAMBase + RAMSize - 4096), 0, 4096);
572	<	BootGlobsAddr = RAMBase + RAMSize - 0x1c;
573	<	boot_globs = (uint32 *)BootGlobsAddr;
574	<	boot_globs[-5] = htonl(RAMBase + RAMSize);      // MemTop
575	<	boot_globs[0] = htonl(RAMBase);                         // First RAM bank
576	<	boot_globs[1] = htonl(RAMSize);
577	<	boot_globs[2] = htonl((uint32)-1);                      // End of bank table
578	<
579	<	// Init thunks
580	<	if (!ThunksInit())
972	>	#if !EMULATED_PPC
973	>	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
974	>	sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
975	>	ErrorAlert(str);
976		goto quit;
977	+	}
978	+	#endif
979	+	rom_area_mapped = true;
980	+	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROMBase));
981
982	<	// Init drivers
983	<	SonyInit();
984	<	DiskInit();
985	<	CDROMInit();
587	<	SCSIInit();
588	<
589	<	// Init external file system
590	<	ExtFSInit();
591	<
592	<	// Init audio
593	<	AudioInit();
594	<
595	<	// Init network
596	<	EtherInit();
597	<
598	<	// Init serial ports
599	<	SerialInit();
600	<
601	<	// Init Time Manager
602	<	TimerInit();
603	<
604	<	// Init clipboard
605	<	ClipInit();
982	>	if (RAMBase > ROMBase) {
983	>	ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
984	>	goto quit;
985	>	}
986
987	<	// Init video
988	<	if (!VideoInit())
987	>	// Load Mac ROM
988	>	if (!load_mac_rom())
989		goto quit;
990
991	<	// Install ROM patches
992	<	if (!PatchROM()) {
613	<	ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
991	>	// Initialize everything
992	>	if (!InitAll(vmdir))
993		goto quit;
994	<	}
994	>	D(bug("Initialization complete\n"));
995
996		// Clear caches (as we loaded and patched code) and write protect ROM
997		#if !EMULATED_PPC
998	<	MakeExecutable(0, (void *)ROM_BASE, ROM_AREA_SIZE);
998	>	flush_icache_range(ROMBase, ROMBase + ROM_AREA_SIZE);
999		#endif
1000	<	vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
622	<
623	<	// Initialize Kernel Data
624	<	memset(kernel_data, 0, sizeof(KernelData));
625	<	if (ROMType == ROMTYPE_NEWWORLD) {
626	<	uintptr of_dev_tree = SheepMem::Reserve(4 * sizeof(uint32));
627	<	memset((void *)of_dev_tree, 0, 4 * sizeof(uint32));
628	<	uintptr vector_lookup_tbl = SheepMem::Reserve(128);
629	<	uintptr vector_mask_tbl = SheepMem::Reserve(64);
630	<	memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
631	<	memset((void *)vector_lookup_tbl, 0, 128);
632	<	memset((void *)vector_mask_tbl, 0, 64);
633	<	kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
634	<	kernel_data->v[0xb84 >> 2] = htonl(of_dev_tree);                        // OF device tree base
635	<	kernel_data->v[0xb90 >> 2] = htonl(vector_lookup_tbl);
636	<	kernel_data->v[0xb94 >> 2] = htonl(vector_mask_tbl);
637	<	kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE);                           // OpenPIC base
638	<	kernel_data->v[0xbb0 >> 2] = htonl(0);                                          // ADB base
639	<	kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
640	<	kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
641	<	kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
642	<	kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
643	<	kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
644	<	kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
645	<	kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
646	<	kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
647	<	kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
648	<	kernel_data->v[0xf60 >> 2] = htonl(PVR);
649	<	kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed);
650	<	kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed);
651	<	kernel_data->v[0xf6c >> 2] = htonl(CPUClockSpeed);
652	<	} else {
653	<	kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
654	<	kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
655	<	kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
656	<	kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
657	<	kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
658	<	kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
659	<	kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
660	<	kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
661	<	kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
662	<	kernel_data->v[0xf80 >> 2] = htonl(PVR);
663	<	kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed);
664	<	kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed);
665	<	kernel_data->v[0xf8c >> 2] = htonl(CPUClockSpeed);
666	<	}
667	<
668	<	// Initialize extra low memory
669	<	D(bug("Initializing Low Memory...\n"));
670	<	memset(NULL, 0, 0x3000);
671	<	WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h'));                  // Signature to detect SheepShaver
672	<	WriteMacInt32(XLM_KERNEL_DATA, KernelDataAddr);                                 // For trap replacement routines
673	<	WriteMacInt32(XLM_PVR, PVR);                                                                    // Theoretical PVR
674	<	WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed);                                    // For DriverServicesLib patch
675	<	WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN);                // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
676	<	WriteMacInt32(XLM_ZERO_PAGE, SheepMem::ZeroPage());                             // Pointer to read-only page with all bits set to 0
677	<	#if !EMULATED_PPC
678	<	WriteMacInt32(XLM_TOC, (uint32)TOC);                                                            // TOC pointer of emulator
679	<	#endif
680	<	WriteMacInt32(XLM_ETHER_INIT, NativeFunction(NATIVE_ETHER_INIT));       // DLPI ethernet driver functions
681	<	WriteMacInt32(XLM_ETHER_TERM, NativeFunction(NATIVE_ETHER_TERM));
682	<	WriteMacInt32(XLM_ETHER_OPEN, NativeFunction(NATIVE_ETHER_OPEN));
683	<	WriteMacInt32(XLM_ETHER_CLOSE, NativeFunction(NATIVE_ETHER_CLOSE));
684	<	WriteMacInt32(XLM_ETHER_WPUT, NativeFunction(NATIVE_ETHER_WPUT));
685	<	WriteMacInt32(XLM_ETHER_RSRV, NativeFunction(NATIVE_ETHER_RSRV));
686	<	WriteMacInt32(XLM_VIDEO_DOIO, NativeFunction(NATIVE_VIDEO_DO_DRIVER_IO));
687	<	D(bug("Low Memory initialized\n"));
1000	>	vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
1001
1002		// Start 60Hz thread
1003	+	tick_thread_cancel = false;
1004		tick_thread_active = (pthread_create(&tick_thread, NULL, tick_func, NULL) == 0);
1005		D(bug("Tick thread installed (%ld)\n", tick_thread));
1006
1007		// Start NVRAM watchdog thread
1008		memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1009	+	nvram_thread_cancel = false;
1010		nvram_thread_active = (pthread_create(&nvram_thread, NULL, nvram_func, NULL) == 0);
1011		D(bug("NVRAM thread installed (%ld)\n", nvram_thread));
1012
1013		#if !EMULATED_PPC
699	–	// Create and install stacks for signal handlers
700	–	sig_stack = malloc(SIG_STACK_SIZE);
701	–	D(bug("Signal stack at %p\n", sig_stack));
702	–	if (sig_stack == NULL) {
703	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
704	–	goto quit;
705	–	}
706	–	extra_stack = malloc(SIG_STACK_SIZE);
707	–	D(bug("Extra stack at %p\n", extra_stack));
708	–	if (extra_stack == NULL) {
709	–	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
710	–	goto quit;
711	–	}
712	–	struct sigaltstack new_stack;
713	–	new_stack.ss_sp = sig_stack;
714	–	new_stack.ss_flags = 0;
715	–	new_stack.ss_size = SIG_STACK_SIZE;
716	–	if (sigaltstack(&new_stack, NULL) < 0) {
717	–	sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
718	–	ErrorAlert(str);
719	–	goto quit;
720	–	}
721	–	#endif
722	–
723	–	#if !EMULATED_PPC
724	–	// Install SIGSEGV handler
725	–	sigemptyset(&sigsegv_action.sa_mask);   // Block interrupts during SEGV handling
726	–	sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
727	–	sigsegv_action.sa_handler = (__sighandler_t)sigsegv_handler;
728	–	sigsegv_action.sa_flags = SA_ONSTACK;
729	–	sigsegv_action.sa_restorer = NULL;
730	–	if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
731	–	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
732	–	ErrorAlert(str);
733	–	goto quit;
734	–	}
735	–
1014		// Install SIGILL handler
1015		sigemptyset(&sigill_action.sa_mask);    // Block interrupts during ILL handling
1016		sigaddset(&sigill_action.sa_mask, SIGUSR2);
1017	<	sigill_action.sa_handler = (__sighandler_t)sigill_handler;
1018	<	sigill_action.sa_flags = SA_ONSTACK;
1017	>	sigill_action.sa_sigaction = sigill_handler;
1018	>	sigill_action.sa_flags = SA_ONSTACK | SA_SIGINFO;
1019	>	#ifdef HAVE_SIGNAL_SA_RESTORER
1020		sigill_action.sa_restorer = NULL;
1021	+	#endif
1022		if (sigaction(SIGILL, &sigill_action, NULL) < 0) {
1023	<	sprintf(str, GetString(STR_SIGILL_INSTALL_ERR), strerror(errno));
1023	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGILL", strerror(errno));
1024		ErrorAlert(str);
1025		goto quit;
1026		}
1027		#endif
1028
1029	+	#if !EMULATED_PPC
1030		// Install interrupt signal handler
1031		sigemptyset(&sigusr2_action.sa_mask);
1032	<	sigusr2_action.sa_handler = (__sighandler_t)sigusr2_handler;
1033	<	sigusr2_action.sa_flags = 0;
1034	<	#if !EMULATED_PPC
754	<	sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART;
755	<	#endif
1032	>	sigusr2_action.sa_sigaction = sigusr2_handler_init;
1033	>	sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART | SA_SIGINFO;
1034	>	#ifdef HAVE_SIGNAL_SA_RESTORER
1035		sigusr2_action.sa_restorer = NULL;
1036	+	#endif
1037		if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
1038	<	sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
1038	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGUSR2", strerror(errno));
1039		ErrorAlert(str);
1040		goto quit;
1041		}
1042	+	#endif
1043
1044		// Get my thread ID and execute MacOS thread function
1045		emul_thread = pthread_self();
#	Line 784 | Line 1065 | static void Quit(void)
1065
1066		// Stop 60Hz thread
1067		if (tick_thread_active) {
1068	+	tick_thread_cancel = true;
1069		pthread_cancel(tick_thread);
1070		pthread_join(tick_thread, NULL);
1071		}
1072
1073		// Stop NVRAM watchdog thread
1074		if (nvram_thread_active) {
1075	+	nvram_thread_cancel = true;
1076		pthread_cancel(nvram_thread);
1077		pthread_join(nvram_thread, NULL);
1078		}
1079
1080		#if !EMULATED_PPC
1081	<	// Uninstall SIGSEGV handler
1081	>	// Uninstall SIGSEGV and SIGBUS handlers
1082		sigemptyset(&sigsegv_action.sa_mask);
1083		sigsegv_action.sa_handler = SIG_DFL;
1084		sigsegv_action.sa_flags = 0;
1085		sigaction(SIGSEGV, &sigsegv_action, NULL);
1086	+	sigaction(SIGBUS, &sigsegv_action, NULL);
1087
1088		// Uninstall SIGILL handler
1089		sigemptyset(&sigill_action.sa_mask);
1090		sigill_action.sa_handler = SIG_DFL;
1091		sigill_action.sa_flags = 0;
1092		sigaction(SIGILL, &sigill_action, NULL);
809	–	#endif
810	–
811	–	// Save NVRAM
812	–	XPRAMExit();
813	–
814	–	// Exit clipboard
815	–	ClipExit();
816	–
817	–	// Exit Time Manager
818	–	TimerExit();
819	–
820	–	// Exit serial
821	–	SerialExit();
822	–
823	–	// Exit network
824	–	EtherExit();
825	–
826	–	// Exit audio
827	–	AudioExit();
1093
1094	<	// Exit video
1095	<	VideoExit();
1096	<
1097	<	// Exit external file system
1098	<	ExtFSExit();
1094	>	// Delete stacks for signal handlers
1095	>	if (sig_stack.ss_sp)
1096	>	free(sig_stack.ss_sp);
1097	>	if (extra_stack.ss_sp)
1098	>	free(extra_stack.ss_sp);
1099	>	#endif
1100
1101	<	// Exit drivers
1102	<	SCSIExit();
837	<	CDROMExit();
838	<	DiskExit();
839	<	SonyExit();
1101	>	// Deinitialize everything
1102	>	ExitAll();
1103
1104		// Delete SheepShaver globals
1105		SheepMem::Exit();
1106
1107		// Delete RAM area
1108		if (ram_area_mapped)
1109	<	vm_release((char *)RAM_BASE, RAMSize);
1109	>	vm_mac_release(RAMBase, RAMSize);
1110
1111		// Delete ROM area
1112		if (rom_area_mapped)
1113	<	vm_release((char *)ROM_BASE, ROM_AREA_SIZE);
1113	>	vm_mac_release(ROMBase, ROM_AREA_SIZE);
1114
1115	<	// Delete Kernel Data area
1116	<	if (kernel_area >= 0) {
1117	<	shmdt((void *)KERNEL_DATA_BASE);
1118	<	shmdt((void *)KERNEL_DATA2_BASE);
1119	<	shmctl(kernel_area, IPC_RMID, NULL);
857	<	}
1115	>	// Delete DR cache areas
1116	>	if (dr_emulator_area_mapped)
1117	>	vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
1118	>	if (dr_cache_area_mapped)
1119	>	vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE);
1120
1121		// Delete Low Memory area
1122		if (lm_area_mapped)
1123	<	munmap((char *)0x0000, 0x3000);
1123	>	vm_mac_release(0, 0x3000);
1124
1125		// Close /dev/zero
1126		if (zero_fd > 0)
#	Line 876 | Line 1138 | static void Quit(void)
1138		#endif
1139
1140		// Close X11 server connection
1141	+	#ifndef USE_SDL_VIDEO
1142		if (x_display)
1143		XCloseDisplay(x_display);
1144	+	#endif
1145	+
1146	+	// Notify GUI we are about to leave
1147	+	if (gui_connection) {
1148	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_EXIT, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
1149	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID);
1150	+	}
1151
1152		exit(0);
1153		}
1154
1155
1156		/*
1157	+	*  Initialize Kernel Data segments
1158	+	*/
1159	+
1160	+	static bool kernel_data_init(void)
1161	+	{
1162	+	char str[256];
1163	+	void *kernel_addr1 = NULL;
1164	+	void *kernel_addr2 = NULL;
1165	+	uint32 kernel_area_size = (KERNEL_AREA_SIZE + SHMLBA - 1) & -SHMLBA;
1166	+
1167	+	kernel_area = shmget(IPC_PRIVATE, kernel_area_size, 0600);
1168	+	if (kernel_area == -1) {
1169	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
1170	+	goto fail_shmget;
1171	+	}
1172	+	kernel_addr1 = Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA);
1173	+	if (shmat(kernel_area, kernel_addr1, 0) != kernel_addr1) {
1174	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
1175	+	goto fail_shmat1;
1176	+	}
1177	+	kernel_addr2 = Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA);
1178	+	if (shmat(kernel_area, kernel_addr2, 0) != kernel_addr2) {
1179	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
1180	+	goto fail_shmat2;
1181	+	}
1182	+	atexit(kernel_data_exit);
1183	+	return true;
1184	+
1185	+	fail_shmat2:
1186	+	shmdt(kernel_addr1);
1187	+	fail_shmat1:
1188	+	shmctl(kernel_area, IPC_RMID, NULL);
1189	+	fail_shmget:
1190	+	ErrorAlert(str);
1191	+	return false;
1192	+	}
1193	+
1194	+
1195	+	/*
1196	+	*  Deallocate Kernel Data segments
1197	+	*/
1198	+
1199	+	static void kernel_data_exit(void)
1200	+	{
1201	+	if (kernel_area >= 0) {
1202	+	shmdt(Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA));
1203	+	shmdt(Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA));
1204	+	shmctl(kernel_area, IPC_RMID, NULL);
1205	+	kernel_area = NULL;
1206	+	}
1207	+	}
1208	+
1209	+
1210	+	/*
1211		*  Jump into Mac ROM, start 680x0 emulator
1212		*/
1213
#	Line 911 | Line 1235 | static void *emul_func(void *arg)
1235		// Jump to ROM boot routine
1236		D(bug("Jumping to ROM\n"));
1237		#if EMULATED_PPC
1238	<	jump_to_rom(ROM_BASE + 0x310000);
1238	>	jump_to_rom(ROMBase + 0x310000);
1239		#else
1240	<	jump_to_rom(ROM_BASE + 0x310000, (uint32)emulator_data);
1240	>	jump_to_rom(ROMBase + 0x310000, (uint32)emulator_data);
1241		#endif
1242		D(bug("Returned from ROM\n"));
1243
#	Line 970 | Line 1294 | void QuitEmulator(void)
1294
1295
1296		/*
973	–	*  Pause/resume emulator
974	–	*/
975	–
976	–	void PauseEmulator(void)
977	–	{
978	–	pthread_kill(emul_thread, SIGSTOP);
979	–	}
980	–
981	–	void ResumeEmulator(void)
982	–	{
983	–	pthread_kill(emul_thread, SIGCONT);
984	–	}
985	–
986	–
987	–	/*
1297		*  Dump 68k registers
1298		*/
1299
#	Line 1012 | Line 1321 | void Dump68kRegs(M68kRegisters *r)
1321		*  Make code executable
1322		*/
1323
1324	<	void MakeExecutable(int dummy, void *start, uint32 length)
1324	>	void MakeExecutable(int dummy, uint32 start, uint32 length)
1325		{
1326	<	if (((uintptr)start >= ROM_BASE) && ((uintptr)start < (ROM_BASE + ROM_SIZE)))
1326	>	if ((start >= ROMBase) && (start < (ROMBase + ROM_SIZE)))
1327		return;
1328		#if EMULATED_PPC
1329	<	FlushCodeCache((uintptr)start, (uintptr)start + length);
1329	>	FlushCodeCache(start, start + length);
1330		#else
1331	<	flush_icache_range(start, (void *)((uintptr)start + length));
1331	>	flush_icache_range(start, start + length);
1332		#endif
1333		}
1334
1335
1336		/*
1337	<	*  Patch things after system startup (gets called by disk driver accRun routine)
1337	>	*  NVRAM watchdog thread (saves NVRAM every minute)
1338		*/
1339
1340	<	void PatchAfterStartup(void)
1340	>	static void nvram_watchdog(void)
1341		{
1342	<	ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL);
1343	<	InstallExtFS();
1342	>	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1343	>	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1344	>	SaveXPRAM();
1345	>	}
1346		}
1347
1037	–
1038	–	/*
1039	–	*  NVRAM watchdog thread (saves NVRAM every minute)
1040	–	*/
1041	–
1348		static void *nvram_func(void *arg)
1349		{
1350	<	struct timespec req = {60, 0};  // 1 minute
1351	<
1352	<	for (;;) {
1353	<	pthread_testcancel();
1048	<	nanosleep(&req, NULL);
1049	<	pthread_testcancel();
1050	<	if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
1051	<	memcpy(last_xpram, XPRAM, XPRAM_SIZE);
1052	<	SaveXPRAM();
1053	<	}
1350	>	while (!nvram_thread_cancel) {
1351	>	for (int i=0; i<60 && !nvram_thread_cancel; i++)
1352	>	Delay_usec(999999);             // Only wait 1 second so we quit promptly when nvram_thread_cancel becomes true
1353	>	nvram_watchdog();
1354		}
1355		return NULL;
1356		}
#	Line 1063 | Line 1363 | static void *nvram_func(void *arg)
1363		static void *tick_func(void *arg)
1364		{
1365		int tick_counter = 0;
1366	<	struct timespec req = {0, 16625000};
1366	>	uint64 start = GetTicks_usec();
1367	>	int64 ticks = 0;
1368	>	uint64 next = GetTicks_usec();
1369
1370	<	for (;;) {
1370	>	while (!tick_thread_cancel) {
1371
1372		// Wait
1373	<	nanosleep(&req, NULL);
1373	>	next += 16625;
1374	>	int64 delay = next - GetTicks_usec();
1375	>	if (delay > 0)
1376	>	Delay_usec(delay);
1377	>	else if (delay < -16625)
1378	>	next = GetTicks_usec();
1379	>	ticks++;
1380
1381		#if !EMULATED_PPC
1382		// Did we crash?
1383		if (emul_thread_fatal) {
1384
1385		// Yes, dump registers
1386	<	pt_regs *r = (pt_regs *)&sigsegv_regs;
1386	>	sigregs *r = &sigsegv_regs;
1387		char str[256];
1388	<	sprintf(str, "SIGSEGV\n"
1388	>	if (crash_reason == NULL)
1389	>	crash_reason = "SIGSEGV";
1390	>	sprintf(str, "%s\n"
1391		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1392		"  xer %08lx     cr %08lx  \n"
1393		"   r0 %08lx     r1 %08lx     r2 %08lx     r3 %08lx\n"
#	Line 1088 | Line 1398 | static void *tick_func(void *arg)
1398		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
1399		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
1400		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
1401	+	crash_reason,
1402		r->nip, r->link, r->ctr, r->msr,
1403		r->xer, r->ccr,
1404		r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
#	Line 1123 | Line 1434 | static void *tick_func(void *arg)
1434		TriggerInterrupt();
1435		}
1436		}
1437	+
1438	+	uint64 end = GetTicks_usec();
1439	+	D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1440		return NULL;
1441		}
1442
#	Line 1172 | Line 1486 | struct B2_mutex {
1486		pthread_mutexattr_init(&attr);
1487		// Initialize the mutex for priority inheritance --
1488		// required for accurate timing.
1489	<	#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL
1489	>	#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
1490		pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
1491		#endif
1492		#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
#	Line 1243 | Line 1557 | void B2_delete_mutex(B2_mutex *mutex)
1557		*  Trigger signal USR2 from another thread
1558		*/
1559
1560	<	#if !EMULATED_PPC || ASYNC_IRQ
1560	>	#if !EMULATED_PPC
1561		void TriggerInterrupt(void)
1562		{
1563	<	if (ready_for_signals)
1563	>	if (ready_for_signals) {
1564	>	idle_resume();
1565		pthread_kill(emul_thread, SIGUSR2);
1566	+	}
1567		}
1568		#endif
1569
#	Line 1275 | Line 1591 | void ClearInterruptFlag(uint32 flag)
1591
1592		void DisableInterrupt(void)
1593		{
1594	+	#if EMULATED_PPC
1595	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) + 1);
1596	+	#else
1597		atomic_add((int *)XLM_IRQ_NEST, 1);
1598	+	#endif
1599		}
1600
1601
#	Line 1285 | Line 1605 | void DisableInterrupt(void)
1605
1606		void EnableInterrupt(void)
1607		{
1608	+	#if EMULATED_PPC
1609	+	WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) - 1);
1610	+	#else
1611		atomic_add((int *)XLM_IRQ_NEST, -1);
1612	+	#endif
1613		}
1614
1615
#	Line 1293 | Line 1617 | void EnableInterrupt(void)
1617		*  USR2 handler
1618		*/
1619
1620	<	#if EMULATED_PPC
1621	<	static void sigusr2_handler(int sig)
1620	>	#if !EMULATED_PPC
1621	>	void sigusr2_handler(int sig, siginfo_t *sip, void *scp)
1622		{
1623	<	#if ASYNC_IRQ
1624	<	extern void HandleInterrupt(void);
1625	<	HandleInterrupt();
1623	>	machine_regs *r = MACHINE_REGISTERS(scp);
1624	>
1625	>	#ifdef SYSTEM_CLOBBERS_R2
1626	>	// Restore pointer to Thread Local Storage
1627	>	set_r2(TOC);
1628	>	#endif
1629	>	#ifdef SYSTEM_CLOBBERS_R13
1630	>	// Restore pointer to .sdata section
1631	>	set_r13(R13);
1632	>	#endif
1633	>
1634	>	#ifdef USE_SDL_VIDEO
1635	>	// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1636	>	SDL_PumpEvents();
1637		#endif
1303	–	}
1304	–	#else
1305	–	static void sigusr2_handler(int sig, sigcontext_struct *sc)
1306	–	{
1307	–	pt_regs *r = sc->regs;
1638
1639		// Do nothing if interrupts are disabled
1640		if (*(int32 *)XLM_IRQ_NEST > 0)
#	Line 1318 | Line 1648 | static void sigusr2_handler(int sig, sig
1648		case MODE_68K:
1649		// 68k emulator active, trigger 68k interrupt level 1
1650		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1651	<	r->ccr |= ntohl(kernel_data->v[0x674 >> 2]);
1651	>	r->cr() |= ntohl(kernel_data->v[0x674 >> 2]);
1652		break;
1653
1654		#if INTERRUPTS_IN_NATIVE_MODE
1655		case MODE_NATIVE:
1656		// 68k emulator inactive, in nanokernel?
1657	<	if (r->gpr[1] != KernelDataAddr) {
1657	>	if (r->gpr(1) != KernelDataAddr) {
1658	>
1659	>	// Set extra stack for SIGSEGV handler
1660	>	sigaltstack(&extra_stack, NULL);
1661	>
1662		// Prepare for 68k interrupt level 1
1663		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
1664		WriteMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc, ReadMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc) | ntohl(kernel_data->v[0x674 >> 2]));
1665
1666		// Execute nanokernel interrupt routine (this will activate the 68k emulator)
1667	<	atomic_add((int32 *)XLM_IRQ_NEST, 1);
1667	>	DisableInterrupt();
1668		if (ROMType == ROMTYPE_NEWWORLD)
1669	<	ppc_interrupt(ROM_BASE + 0x312b1c, KernelDataAddr);
1669	>	ppc_interrupt(ROMBase + 0x312b1c, KernelDataAddr);
1670		else
1671	<	ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1671	>	ppc_interrupt(ROMBase + 0x312a3c, KernelDataAddr);
1672	>
1673	>	// Reset normal stack
1674	>	sigaltstack(&sig_stack, NULL);
1675		}
1676		break;
1677		#endif
#	Line 1345 | Line 1682 | static void sigusr2_handler(int sig, sig
1682		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1683
1684		// Set extra stack for SIGSEGV handler
1685	<	struct sigaltstack new_stack;
1349	<	new_stack.ss_sp = extra_stack;
1350	<	new_stack.ss_flags = 0;
1351	<	new_stack.ss_size = SIG_STACK_SIZE;
1352	<	sigaltstack(&new_stack, NULL);
1685	>	sigaltstack(&extra_stack, NULL);
1686		#if 1
1687		// Execute full 68k interrupt routine
1688		M68kRegisters r;
#	Line 1375 | Line 1708 | static void sigusr2_handler(int sig, sig
1708		}
1709		}
1710		#endif
1711	<	// Reset normal signal stack
1712	<	new_stack.ss_sp = sig_stack;
1380	<	new_stack.ss_flags = 0;
1381	<	new_stack.ss_size = SIG_STACK_SIZE;
1382	<	sigaltstack(&new_stack, NULL);
1711	>	// Reset normal stack
1712	>	sigaltstack(&sig_stack, NULL);
1713		}
1714		break;
1715		#endif
#	Line 1393 | Line 1723 | static void sigusr2_handler(int sig, sig
1723		*/
1724
1725		#if !EMULATED_PPC
1726	<	static void sigsegv_handler(int sig, sigcontext_struct *sc)
1726	>	static void sigsegv_handler(int sig, siginfo_t *sip, void *scp)
1727		{
1728	<	pt_regs *r = sc->regs;
1728	>	machine_regs *r = MACHINE_REGISTERS(scp);
1729
1730		// Get effective address
1731	<	uint32 addr = r->dar;
1731	>	uint32 addr = r->dar();
1732
1733	+	#ifdef SYSTEM_CLOBBERS_R2
1734	+	// Restore pointer to Thread Local Storage
1735	+	set_r2(TOC);
1736	+	#endif
1737	+	#ifdef SYSTEM_CLOBBERS_R13
1738	+	// Restore pointer to .sdata section
1739	+	set_r13(R13);
1740	+	#endif
1741	+
1742		#if ENABLE_VOSF
1743	<	// Handle screen fault.
1744	<	extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
1745	<	if (Screen_fault_handler((sigsegv_address_t)addr, (sigsegv_address_t)r->nip))
1743	>	// Handle screen fault
1744	>	#if SIGSEGV_CHECK_VERSION(1,0,0)
1745	>	sigsegv_info_t si;
1746	>	si.addr = (sigsegv_address_t)addr;
1747	>	si.pc = (sigsegv_address_t)r->pc();
1748	>	#endif
1749	>	extern bool Screen_fault_handler(sigsegv_info_t *sip);
1750	>	if (Screen_fault_handler(&si))
1751		return;
1752		#endif
1753
1754		num_segv++;
1755
1756	<	// Fault in Mac ROM or RAM?
1757	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
1756	>	// Fault in Mac ROM or RAM or DR Cache?
1757	>	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));
1758		if (mac_fault) {
1759
1760		// "VM settings" during MacOS 8 installation
1761	<	if (r->nip == ROM_BASE + 0x488160 && r->gpr[20] == 0xf8000000) {
1762	<	r->nip += 4;
1763	<	r->gpr[8] = 0;
1761	>	if (r->pc() == ROMBase + 0x488160 && r->gpr(20) == 0xf8000000) {
1762	>	r->pc() += 4;
1763	>	r->gpr(8) = 0;
1764		return;
1765
1766		// MacOS 8.5 installation
1767	<	} else if (r->nip == ROM_BASE + 0x488140 && r->gpr[16] == 0xf8000000) {
1768	<	r->nip += 4;
1769	<	r->gpr[8] = 0;
1767	>	} else if (r->pc() == ROMBase + 0x488140 && r->gpr(16) == 0xf8000000) {
1768	>	r->pc() += 4;
1769	>	r->gpr(8) = 0;
1770		return;
1771
1772		// MacOS 8 serial drivers on startup
1773	<	} else if (r->nip == ROM_BASE + 0x48e080 && (r->gpr[8] == 0xf3012002 || r->gpr[8] == 0xf3012000)) {
1774	<	r->nip += 4;
1775	<	r->gpr[8] = 0;
1773	>	} else if (r->pc() == ROMBase + 0x48e080 && (r->gpr(8) == 0xf3012002 || r->gpr(8) == 0xf3012000)) {
1774	>	r->pc() += 4;
1775	>	r->gpr(8) = 0;
1776		return;
1777
1778		// MacOS 8.1 serial drivers on startup
1779	<	} else if (r->nip == ROM_BASE + 0x48c5e0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
1780	<	r->nip += 4;
1779	>	} else if (r->pc() == ROMBase + 0x48c5e0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1780	>	r->pc() += 4;
1781		return;
1782	<	} else if (r->nip == ROM_BASE + 0x4a10a0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
1783	<	r->nip += 4;
1782	>	} else if (r->pc() == ROMBase + 0x4a10a0 && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1783	>	r->pc() += 4;
1784	>	return;
1785	>
1786	>	// MacOS 8.6 serial drivers on startup (with DR Cache and OldWorld ROM)
1787	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(16) == 0xf3012002 || r->gpr(16) == 0xf3012000)) {
1788	>	r->pc() += 4;
1789	>	return;
1790	>	} else if ((r->pc() - DR_CACHE_BASE) < DR_CACHE_SIZE && (r->gpr(20) == 0xf3012002 || r->gpr(20) == 0xf3012000)) {
1791	>	r->pc() += 4;
1792		return;
1793		}
1794
1795		// Get opcode and divide into fields
1796	<	uint32 opcode = *((uint32 *)r->nip);
1796	>	uint32 opcode = *((uint32 *)r->pc());
1797		uint32 primop = opcode >> 26;
1798		uint32 exop = (opcode >> 1) & 0x3ff;
1799		uint32 ra = (opcode >> 16) & 0x1f;
#	Line 1530 | Line 1882 | static void sigsegv_handler(int sig, sig
1882		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_NORM; break;
1883		case 45:        // sthu
1884		transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
1885	+	#if EMULATE_UNALIGNED_LOADSTORE_MULTIPLE
1886	+	case 46:        // lmw
1887	+	if ((addr % 4) != 0) {
1888	+	uint32 ea = addr;
1889	+	D(bug("WARNING: unaligned lmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1890	+	for (int i = rd; i <= 31; i++) {
1891	+	r->gpr(i) = ReadMacInt32(ea);
1892	+	ea += 4;
1893	+	}
1894	+	r->pc() += 4;
1895	+	goto rti;
1896	+	}
1897	+	break;
1898	+	case 47:        // stmw
1899	+	if ((addr % 4) != 0) {
1900	+	uint32 ea = addr;
1901	+	D(bug("WARNING: unaligned stmw to EA=%08x from IP=%08x\n", ea, r->pc()));
1902	+	for (int i = rd; i <= 31; i++) {
1903	+	WriteMacInt32(ea, r->gpr(i));
1904	+	ea += 4;
1905	+	}
1906	+	r->pc() += 4;
1907	+	goto rti;
1908	+	}
1909	+	break;
1910	+	#endif
1911		}
1912
1913	<	// Ignore ROM writes
1914	<	if (transfer_type == TYPE_STORE && addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
1915	<	//                      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));
1913	>	// Ignore ROM writes (including to the zero page, which is read-only)
1914	>	if (transfer_type == TYPE_STORE &&
1915	>	((addr >= ROMBase && addr < ROMBase + ROM_SIZE) ||
1916	>	(addr >= SheepMem::ZeroPage() && addr < SheepMem::ZeroPage() + SheepMem::PageSize()))) {
1917	>	//                      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()));
1918		if (addr_mode == MODE_U || addr_mode == MODE_UX)
1919	<	r->gpr[ra] = addr;
1920	<	r->nip += 4;
1919	>	r->gpr(ra) = addr;
1920	>	r->pc() += 4;
1921		goto rti;
1922		}
1923
1924		// Ignore illegal memory accesses?
1925		if (PrefsFindBool("ignoresegv")) {
1926		if (addr_mode == MODE_U || addr_mode == MODE_UX)
1927	<	r->gpr[ra] = addr;
1927	>	r->gpr(ra) = addr;
1928		if (transfer_type == TYPE_LOAD)
1929	<	r->gpr[rd] = 0;
1930	<	r->nip += 4;
1929	>	r->gpr(rd) = 0;
1930	>	r->pc() += 4;
1931		goto rti;
1932		}
1933
#	Line 1555 | Line 1935 | static void sigsegv_handler(int sig, sig
1935		if (!PrefsFindBool("nogui")) {
1936		char str[256];
1937		if (transfer_type == TYPE_LOAD || transfer_type == TYPE_STORE)
1938	<	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]);
1938	>	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));
1939		else
1940	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
1940	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
1941		ErrorAlert(str);
1942		QuitEmulator();
1943		return;
#	Line 1565 | Line 1945 | static void sigsegv_handler(int sig, sig
1945		}
1946
1947		// For all other errors, jump into debugger (sort of...)
1948	+	crash_reason = (sig == SIGBUS) ? "SIGBUS" : "SIGSEGV";
1949		if (!ready_for_signals) {
1950	<	printf("SIGSEGV\n");
1951	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
1950	>	printf("%s\n");
1951	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
1952		printf(
1953		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
1954		"  xer %08lx     cr %08lx  \n"
#	Line 1579 | Line 1960 | static void sigsegv_handler(int sig, sig
1960		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
1961		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
1962		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
1963	<	r->nip, r->link, r->ctr, r->msr,
1964	<	r->xer, r->ccr,
1965	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
1966	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
1967	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
1968	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
1969	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
1970	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
1971	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
1972	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
1963	>	crash_reason,
1964	>	r->pc(), r->lr(), r->ctr(), r->msr(),
1965	>	r->xer(), r->cr(),
1966	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
1967	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
1968	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
1969	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
1970	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
1971	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
1972	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
1973	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
1974		exit(1);
1975		QuitEmulator();
1976		return;
1977		} else {
1978		// We crashed. Save registers, tell tick thread and loop forever
1979	<	sigsegv_regs = *(sigregs *)r;
1979	>	build_sigregs(&sigsegv_regs, r);
1980		emul_thread_fatal = true;
1981		for (;;) ;
1982		}
#	Line 1606 | Line 1988 | rti:;
1988		*  SIGILL handler
1989		*/
1990
1991	<	static void sigill_handler(int sig, sigcontext_struct *sc)
1991	>	static void sigill_handler(int sig, siginfo_t *sip, void *scp)
1992		{
1993	<	pt_regs *r = sc->regs;
1993	>	machine_regs *r = MACHINE_REGISTERS(scp);
1994		char str[256];
1995
1996	+	#ifdef SYSTEM_CLOBBERS_R2
1997	+	// Restore pointer to Thread Local Storage
1998	+	set_r2(TOC);
1999	+	#endif
2000	+	#ifdef SYSTEM_CLOBBERS_R13
2001	+	// Restore pointer to .sdata section
2002	+	set_r13(R13);
2003	+	#endif
2004	+
2005		// Fault in Mac ROM or RAM?
2006	<	bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
2006	>	bool mac_fault = (r->pc() >= ROMBase) && (r->pc() < (ROMBase + ROM_AREA_SIZE)) || (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
2007		if (mac_fault) {
2008
2009		// Get opcode and divide into fields
2010	<	uint32 opcode = *((uint32 *)r->nip);
2010	>	uint32 opcode = *((uint32 *)r->pc());
2011		uint32 primop = opcode >> 26;
2012		uint32 exop = (opcode >> 1) & 0x3ff;
2013		uint32 ra = (opcode >> 16) & 0x1f;
#	Line 1627 | Line 2018 | static void sigill_handler(int sig, sigc
2018		switch (primop) {
2019		case 9:         // POWER instructions
2020		case 22:
2021	<	power_inst:             sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->nip, r->gpr[1], opcode);
2021	>	power_inst:             sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->pc(), r->gpr(1), opcode);
2022		ErrorAlert(str);
2023		QuitEmulator();
2024		return;
#	Line 1635 | Line 2026 | power_inst:            sprintf(str, GetString(STR_
2026		case 31:
2027		switch (exop) {
2028		case 83:        // mfmsr
2029	<	r->gpr[rd] = 0xf072;
2030	<	r->nip += 4;
2029	>	r->gpr(rd) = 0xf072;
2030	>	r->pc() += 4;
2031		goto rti;
2032
2033		case 210:       // mtsr
2034		case 242:       // mtsrin
2035		case 306:       // tlbie
2036	<	r->nip += 4;
2036	>	r->pc() += 4;
2037		goto rti;
2038
2039		case 339: {     // mfspr
#	Line 1658 | Line 2049 | power_inst:            sprintf(str, GetString(STR_
2049		case 957:       // PMC3
2050		case 958:       // PMC4
2051		case 959:       // SDA
2052	<	r->nip += 4;
2052	>	r->pc() += 4;
2053		goto rti;
2054		case 25:        // SDR1
2055	<	r->gpr[rd] = 0xdead001f;
2056	<	r->nip += 4;
2055	>	r->gpr(rd) = 0xdead001f;
2056	>	r->pc() += 4;
2057		goto rti;
2058		case 287:       // PVR
2059	<	r->gpr[rd] = PVR;
2060	<	r->nip += 4;
2059	>	r->gpr(rd) = PVR;
2060	>	r->pc() += 4;
2061		goto rti;
2062		}
2063		break;
#	Line 1702 | Line 2093 | power_inst:            sprintf(str, GetString(STR_
2093		case 957:       // PMC3
2094		case 958:       // PMC4
2095		case 959:       // SDA
2096	<	r->nip += 4;
2096	>	r->pc() += 4;
2097		goto rti;
2098		}
2099		break;
#	Line 1721 | Line 2112 | power_inst:            sprintf(str, GetString(STR_
2112
2113		// In GUI mode, show error alert
2114		if (!PrefsFindBool("nogui")) {
2115	<	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
2115	>	sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->pc(), r->gpr(24), r->gpr(1), opcode);
2116		ErrorAlert(str);
2117		QuitEmulator();
2118		return;
#	Line 1729 | Line 2120 | power_inst:            sprintf(str, GetString(STR_
2120		}
2121
2122		// For all other errors, jump into debugger (sort of...)
2123	+	crash_reason = "SIGILL";
2124		if (!ready_for_signals) {
2125	<	printf("SIGILL\n");
2126	<	printf(" sigcontext %p, pt_regs %p\n", sc, r);
2125	>	printf("%s\n");
2126	>	printf(" sigcontext %p, machine_regs %p\n", scp, r);
2127		printf(
2128		"   pc %08lx     lr %08lx    ctr %08lx    msr %08lx\n"
2129		"  xer %08lx     cr %08lx  \n"
#	Line 1743 | Line 2135 | power_inst:            sprintf(str, GetString(STR_
2135		"  r20 %08lx    r21 %08lx    r22 %08lx    r23 %08lx\n"
2136		"  r24 %08lx    r25 %08lx    r26 %08lx    r27 %08lx\n"
2137		"  r28 %08lx    r29 %08lx    r30 %08lx    r31 %08lx\n",
2138	<	r->nip, r->link, r->ctr, r->msr,
2139	<	r->xer, r->ccr,
2140	<	r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
2141	<	r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
2142	<	r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
2143	<	r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
2144	<	r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
2145	<	r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
2146	<	r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
2147	<	r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
2138	>	crash_reason,
2139	>	r->pc(), r->lr(), r->ctr(), r->msr(),
2140	>	r->xer(), r->cr(),
2141	>	r->gpr(0), r->gpr(1), r->gpr(2), r->gpr(3),
2142	>	r->gpr(4), r->gpr(5), r->gpr(6), r->gpr(7),
2143	>	r->gpr(8), r->gpr(9), r->gpr(10), r->gpr(11),
2144	>	r->gpr(12), r->gpr(13), r->gpr(14), r->gpr(15),
2145	>	r->gpr(16), r->gpr(17), r->gpr(18), r->gpr(19),
2146	>	r->gpr(20), r->gpr(21), r->gpr(22), r->gpr(23),
2147	>	r->gpr(24), r->gpr(25), r->gpr(26), r->gpr(27),
2148	>	r->gpr(28), r->gpr(29), r->gpr(30), r->gpr(31));
2149		exit(1);
2150		QuitEmulator();
2151		return;
2152		} else {
2153		// We crashed. Save registers, tell tick thread and loop forever
2154	<	sigsegv_regs = *(sigregs *)r;
2154	>	build_sigregs(&sigsegv_regs, r);
2155		emul_thread_fatal = true;
2156		for (;;) ;
2157		}
#	Line 1773 | Line 2166 | rti:;
2166
2167		bool SheepMem::Init(void)
2168		{
2169	<	if (vm_acquire_fixed((char *)base, size) < 0)
2170	<	return false;
2169	>	// Size of a native page
2170	>	page_size = getpagesize();
2171
2172	<	zero_page = base + size;
2172	>	// Allocate SheepShaver globals
2173	>	proc = base;
2174	>	if (vm_mac_acquire_fixed(base, size) < 0)
2175	>	return false;
2176
2177	<	int page_size = getpagesize();
2178	<	if (vm_acquire_fixed((char *)zero_page, page_size) < 0)
2177	>	// Allocate page with all bits set to 0, right in the middle
2178	>	// This is also used to catch undesired overlaps between proc and data areas
2179	>	zero_page = proc + (size / 2);
2180	>	Mac_memset(zero_page, 0, page_size);
2181	>	if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0)
2182		return false;
2183	<	memset((char *)zero_page, 0, page_size);
2184	<	if (vm_protect((char *)zero_page, page_size, VM_PAGE_READ) < 0)
2183	>
2184	>	#if EMULATED_PPC
2185	>	// Allocate alternate stack for PowerPC interrupt routine
2186	>	sig_stack = base + size;
2187	>	if (vm_mac_acquire_fixed(sig_stack, SIG_STACK_SIZE) < 0)
2188		return false;
2189	+	#endif
2190
2191	<	top = base + size;
2191	>	data = base + size;
2192		return true;
2193		}
2194
2195		void SheepMem::Exit(void)
2196		{
2197	<	if (top) {
2198	<	// The zero page is next to SheepShaver globals
2199	<	vm_release((void *)base, size + getpagesize());
2197	>	if (data) {
2198	>	// Delete SheepShaver globals
2199	>	vm_mac_release(base, size);
2200	>
2201	>	#if EMULATED_PPC
2202	>	// Delete alternate stack for PowerPC interrupt routine
2203	>	vm_mac_release(sig_stack, SIG_STACK_SIZE);
2204	>	#endif
2205		}
2206		}
2207
#	Line 1847 | Line 2255 | void display_alert(int title_id, int pre
2255
2256		void ErrorAlert(const char *text)
2257		{
2258	<	#ifdef ENABLE_GTK
2258	>	if (gui_connection) {
2259	>	if (rpc_method_invoke(gui_connection, RPC_METHOD_ERROR_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2260	>	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2261	>	return;
2262	>	}
2263	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2264		if (PrefsFindBool("nogui") || x_display == NULL) {
2265		printf(GetString(STR_SHELL_ERROR_PREFIX), text);
2266		return;
#	Line 1866 | Line 2279 | void ErrorAlert(const char *text)
2279
2280		void WarningAlert(const char *text)
2281		{
2282	<	#ifdef ENABLE_GTK
2282	>	if (gui_connection) {
2283	>	if (rpc_method_invoke(gui_connection, RPC_METHOD_WARNING_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2284	>	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2285	>	return;
2286	>	}
2287	>	#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2288		if (PrefsFindBool("nogui") || x_display == NULL) {
2289		printf(GetString(STR_SHELL_WARNING_PREFIX), text);
2290		return;

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