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

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.52 by gbeauche, 2004-11-13T14:09:15Z vs.
Revision 1.78 by asvitkine, 2007-08-27T21:45:13Z

#	Line 1 \| Line 1
1		/*
2		* main_unix.cpp - Emulation core, Unix implementation
3		*
4	<	* SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
4	>	* SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
5		*
6		* This program is free software; you can redistribute it and/or modify
7		* it under the terms of the GNU General Public License as published by
#	Line 27 \| Line 27
27		* is slightly different from the SysV ABI used by Linux:
28		* - Stack frames are different (e.g. LR is stored in 8(r1) under
29		* MacOS, but in 4(r1) under Linux)
30	<	* - There is no TOC under Linux; r2 is free for the user
30	>	* - There is a pointer to Thread Local Storage (TLS) under Linux with
31	>	* recent enough glibc. This is r2 in 32-bit mode and r13 in
32	>	* 64-bit mode (PowerOpen/AIX ABI)
33		* - r13 is used as a small data pointer under Linux (but appearently
34		* it is not used this way? To be sure, we specify -msdata=none
35		* in the Makefile)
36	<	* - As there is no TOC, there are also no TVECTs under Linux;
37	<	* function pointers point directly to the function code
36	>	* - There are no TVECTs under Linux; function pointers point
37	>	* directly to the function code
38		* The Execute*() functions have to account for this. Additionally, we
39		* cannot simply call MacOS functions by getting their TVECT and jumping
40		* to it. Such calls are done via the call_macos*() functions in
#	Line 65 \| Line 67
67		* ExecutePPC (or any function that might cause a mode switch). The signal
68		* stack is restored before exiting the SIGUSR2 handler.
69		*
70	<	* There is apparently another problem when processing signals. In
71	<	* fullscreen mode, we get quick updates of the mouse position. This
72	<	* causes an increased number of calls to TriggerInterrupt(). And,
73	<	* since IRQ_NEST is not fully handled atomically, nested calls to
74	<	* ppc_interrupt() may cause stack corruption to eventually crash the
75	<	* emulator.
74	<	*
75	<	* FIXME:
76	<	* The current solution is to allocate another signal stack when
77	<	* processing ppc_interrupt(). However, it may be better to detect
78	<	* the INTFLAG_ADB case and handle it specifically with some extra mutex?
70	>	* Note that POSIX standard says you can't modify the alternate
71	>	* signal stack while the process is executing on it. There is a
72	>	* hackaround though: we install a trampoline SIGUSR2 handler that
73	>	* sets up an alternate stack itself and calls the real handler.
74	>	* Then, when we call sigaltstack() there, we no longer get an EPERM,
75	>	* i.e. it now works.
76		*
77		* TODO:
78		* check if SIGSEGV handler works for all registers (including FP!)
#	Line 105 \| Line 102
102		#include "xpram.h"
103		#include "timer.h"
104		#include "adb.h"
108	–	#include "sony.h"
109	–	#include "disk.h"
110	–	#include "cdrom.h"
111	–	#include "scsi.h"
105		#include "video.h"
113	–	#include "audio.h"
114	–	#include "ether.h"
115	–	#include "serial.h"
116	–	#include "clip.h"
117	–	#include "extfs.h"
106		#include "sys.h"
107		#include "macos_util.h"
108		#include "rom_patches.h"
109		#include "user_strings.h"
110		#include "vm_alloc.h"
111		#include "sigsegv.h"
112	<	#include "thunks.h"
112	>	#include "sigregs.h"
113	>	#include "rpc.h"
114
115		#define DEBUG 0
116		#include "debug.h"
#	Line 166 \| Line 155
155		// Interrupts in native mode?
156		#define INTERRUPTS_IN_NATIVE_MODE 1
157
169	–	// Number of alternate stacks for signal handlers?
170	–	#define SIG_STACK_COUNT 4
171	–
158
159		// Constants
160		const char ROM_FILE_NAME[] = "ROM";
#	Line 183 \| Line 169 \| const uintptr RAM_BASE = 0x10000000; //
169		const uint32 SIG_STACK_SIZE = 0x10000; // Size of signal stack
170
171
186	–	#if !EMULATED_PPC
187	–	struct sigregs {
188	–	uint32 nip;
189	–	uint32 link;
190	–	uint32 ctr;
191	–	uint32 msr;
192	–	uint32 xer;
193	–	uint32 ccr;
194	–	uint32 gpr[32];
195	–	};
196	–
197	–	#if defined(__linux__)
198	–	#include <sys/ucontext.h>
199	–	#define MACHINE_REGISTERS(scp) ((machine_regs )(((ucontext_t )scp)->uc_mcontext.regs))
200	–
201	–	struct machine_regs : public pt_regs
202	–	{
203	–	u_long & cr() { return pt_regs::ccr; }
204	–	uint32 cr() const { return pt_regs::ccr; }
205	–	uint32 lr() const { return pt_regs::link; }
206	–	uint32 ctr() const { return pt_regs::ctr; }
207	–	uint32 xer() const { return pt_regs::xer; }
208	–	uint32 msr() const { return pt_regs::msr; }
209	–	uint32 dar() const { return pt_regs::dar; }
210	–	u_long & pc() { return pt_regs::nip; }
211	–	uint32 pc() const { return pt_regs::nip; }
212	–	u_long & gpr(int i) { return pt_regs::gpr[i]; }
213	–	uint32 gpr(int i) const { return pt_regs::gpr[i]; }
214	–	};
215	–	#endif
216	–
217	–	#if defined(__APPLE__) && defined(__MACH__)
218	–	#include <sys/signal.h>
219	–	extern "C" int sigaltstack(const struct sigaltstack ss, struct sigaltstack oss);
220	–
221	–	#include <sys/ucontext.h>
222	–	#define MACHINE_REGISTERS(scp) ((machine_regs )(((ucontext_t )scp)->uc_mcontext))
223	–
224	–	struct machine_regs : public mcontext
225	–	{
226	–	uint32 & cr() { return ss.cr; }
227	–	uint32 cr() const { return ss.cr; }
228	–	uint32 lr() const { return ss.lr; }
229	–	uint32 ctr() const { return ss.ctr; }
230	–	uint32 xer() const { return ss.xer; }
231	–	uint32 msr() const { return ss.srr1; }
232	–	uint32 dar() const { return es.dar; }
233	–	uint32 & pc() { return ss.srr0; }
234	–	uint32 pc() const { return ss.srr0; }
235	–	uint32 & gpr(int i) { return (&ss.r0)[i]; }
236	–	uint32 gpr(int i) const { return (&ss.r0)[i]; }
237	–	};
238	–	#endif
239	–
240	–	static void build_sigregs(sigregs srp, machine_regs mrp)
241	–	{
242	–	srp->nip = mrp->pc();
243	–	srp->link = mrp->lr();
244	–	srp->ctr = mrp->ctr();
245	–	srp->msr = mrp->msr();
246	–	srp->xer = mrp->xer();
247	–	srp->ccr = mrp->cr();
248	–	for (int i = 0; i < 32; i++)
249	–	srp->gpr[i] = mrp->gpr(i);
250	–	}
251	–
252	–	static struct sigaltstack sig_stacks[SIG_STACK_COUNT]; // Stacks for signal handlers
253	–	static int sig_stack_id = 0; // Stack slot currently used
254	–
255	–	static inline void sig_stack_acquire(void)
256	–	{
257	–	if (++sig_stack_id == SIG_STACK_COUNT) {
258	–	printf("FATAL: signal stack overflow\n");
259	–	return;
260	–	}
261	–	sigaltstack(&sig_stacks[sig_stack_id], NULL);
262	–	}
263	–
264	–	static inline void sig_stack_release(void)
265	–	{
266	–	if (--sig_stack_id < 0) {
267	–	printf("FATAL: signal stack underflow\n");
268	–	return;
269	–	}
270	–	sigaltstack(&sig_stacks[sig_stack_id], NULL);
271	–	}
272	–	#endif
273	–
274	–
172		// Global variables (exported)
173		#if !EMULATED_PPC
174	<	void *TOC; // Small data pointer (r13)
174	>	void *TOC = NULL; // Pointer to Thread Local Storage (r2)
175	>	void *R13 = NULL; // Pointer to .sdata section (r13 under Linux)
176		#endif
177		uint32 RAMBase; // Base address of Mac RAM
178		uint32 RAMSize; // Size of Mac RAM
#	Line 327 \| Line 225 \| static uintptr sig_stack = 0; // Stac
225		#else
226		static struct sigaction sigsegv_action; // Data access exception signal (of emulator thread)
227		static struct sigaction sigill_action; // Illegal instruction signal (of emulator thread)
228	+	static struct sigaltstack sig_stack; // Stack for signal handlers
229	+	static struct sigaltstack extra_stack; // Stack for SIGSEGV inside interrupt handler
230		static bool emul_thread_fatal = false; // Flag: MacOS thread crashed, tick thread shall dump debug output
231		static sigregs sigsegv_regs; // Register dump when crashed
232		static const char *crash_reason = NULL; // Reason of the crash (SIGSEGV, SIGBUS, SIGILL)
233		#endif
234
235	+	static rpc_connection_t *gui_connection = NULL; // RPC connection to the GUI
236	+	static const char *gui_connection_path = NULL; // GUI connection identifier
237	+
238		uint32 SheepMem::page_size; // Size of a native page
239		uintptr SheepMem::zero_page = 0; // Address of ro page filled in with zeros
240		uintptr SheepMem::base = 0x60000000; // Address of SheepShaver data
241	<	uintptr SheepMem::top = 0; // Top of SheepShaver data (stack like storage)
241	>	uintptr SheepMem::proc; // Bottom address of SheepShave procedures
242	>	uintptr SheepMem::data; // Top of SheepShaver data (stack like storage)
243
244
245		// Prototypes
246	+	static bool kernel_data_init(void);
247	+	static void kernel_data_exit(void);
248		static void Quit(void);
249		static void emul_func(void arg);
250		static void nvram_func(void arg);
#	Line 349 \| Line 255 \| extern void init_emul_ppc(void);
255		extern void exit_emul_ppc(void);
256		sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
257		#else
258	<	static void sigusr2_handler(int sig, siginfo_t sip, void scp);
258	>	extern "C" void sigusr2_handler_init(int sig, siginfo_t sip, void scp);
259	>	extern "C" void sigusr2_handler(int sig, siginfo_t sip, void scp);
260		static void sigsegv_handler(int sig, siginfo_t sip, void scp);
261		static void sigill_handler(int sig, siginfo_t sip, void scp);
262		#endif
#	Line 357 \| Line 264 \| static void sigill_handler(int sig, sigi
264
265		// From asm_linux.S
266		#if !EMULATED_PPC
360	–	extern "C" void *get_toc(void);
267		extern "C" void *get_sp(void);
268	<	extern "C" void flush_icache_range(void start, void end);
268	>	extern "C" void *get_r2(void);
269	>	extern "C" void set_r2(void *);
270	>	extern "C" void *get_r13(void);
271	>	extern "C" void set_r13(void *);
272	>	extern "C" void flush_icache_range(uint32 start, uint32 end);
273		extern "C" void jump_to_rom(uint32 entry, uint32 context);
274		extern "C" void quit_emulator(void);
275		extern "C" void execute_68k(uint32 pc, M68kRegisters *r);
#	Line 423 \| Line 333 \| *int atomic_or(int var, int v)**
333
334
335		/*
336	+	* Memory management helpers
337	+	*/
338	+
339	+	static inline int vm_mac_acquire(uint32 addr, uint32 size)
340	+	{
341	+	return vm_acquire_fixed(Mac2HostAddr(addr), size);
342	+	}
343	+
344	+	static inline int vm_mac_release(uint32 addr, uint32 size)
345	+	{
346	+	return vm_release(Mac2HostAddr(addr), size);
347	+	}
348	+
349	+
350	+	/*
351		* Main program
352		*/
353
#	Line 438 \| Line 363 \| *static void usage(const char prg_name)**
363		int main(int argc, char **argv)
364		{
365		char str[256];
441	–	int16 i16;
366		int rom_fd;
367		FILE *proc_file;
368		const char *rom_path;
369		uint32 rom_size, actual;
370		uint8 *rom_tmp;
371		time_t now, expire;
372	+	bool memory_mapped_from_zero;
373	+
374	+	#ifdef USE_SDL_VIDEO
375	+	// don't let SDL block the screensaver
376	+	setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 1);
377	+	#endif
378
379		// Initialize variables
380		RAMBase = 0;
#	Line 455 \| Line 385 \| int main(int argc, char argv)**
385		printf(" %s\n", GetString(STR_ABOUT_TEXT2));
386
387		#if !EMULATED_PPC
388	+	#ifdef SYSTEM_CLOBBERS_R2
389		// Get TOC pointer
390	<	TOC = get_toc();
390	>	TOC = get_r2();
391	>	#endif
392	>	#ifdef SYSTEM_CLOBBERS_R13
393	>	// Get r13 register
394	>	R13 = get_r13();
395		#endif
461	–
462	–	#ifdef ENABLE_GTK
463	–	// Init GTK
464	–	gtk_set_locale();
465	–	gtk_init(&argc, &argv);
396		#endif
467	–
468	–	// Read preferences
469	–	PrefsInit(argc, argv);
397
398		// Parse command line arguments
399		for (int i=1; i<argc; i++) {
#	Line 478 \| Line 405 \| int main(int argc, char argv)**
405		if (i < argc)
406		x_display_name = strdup(argv[i]);
407		#endif
408	<	} else if (argv[i][0] == '-') {
408	>	} else if (strcmp(argv[i], "--gui-connection") == 0) {
409	>	argv[i++] = NULL;
410	>	if (i < argc) {
411	>	gui_connection_path = argv[i];
412	>	argv[i] = NULL;
413	>	}
414	>	}
415	>	}
416	>
417	>	// Remove processed arguments
418	>	for (int i=1; i<argc; i++) {
419	>	int k;
420	>	for (k=i; k<argc; k++)
421	>	if (argv[k] != NULL)
422	>	break;
423	>	if (k > i) {
424	>	k -= i;
425	>	for (int j=i+k; j<argc; j++)
426	>	argv[j-k] = argv[j];
427	>	argc -= k;
428	>	}
429	>	}
430	>
431	>	// Connect to the external GUI
432	>	if (gui_connection_path) {
433	>	if ((gui_connection = rpc_init_client(gui_connection_path)) == NULL) {
434	>	fprintf(stderr, "Failed to initialize RPC client connection to the GUI\n");
435	>	return 1;
436	>	}
437	>	}
438	>
439	>	#ifdef ENABLE_GTK
440	>	if (!gui_connection) {
441	>	// Init GTK
442	>	gtk_set_locale();
443	>	gtk_init(&argc, &argv);
444	>	}
445	>	#endif
446	>
447	>	// Read preferences
448	>	PrefsInit(argc, argv);
449	>
450	>	// Any command line arguments left?
451	>	for (int i=1; i<argc; i++) {
452	>	if (argv[i][0] == '-') {
453		fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
454		usage(argv[0]);
455		}
#	Line 501 \| Line 472 \| int main(int argc, char argv)**
472		goto quit;
473		}
474		atexit(SDL_Quit);
475	+
476	+	// Don't let SDL catch SIGINT and SIGTERM signals
477	+	signal(SIGINT, SIG_DFL);
478	+	signal(SIGTERM, SIG_DFL);
479		#endif
480
481		#ifndef USE_SDL_VIDEO
#	Line 526 \| Line 501 \| int main(int argc, char argv)**
501
502		#if !EMULATED_PPC
503		// Create and install stacks for signal handlers
504	<	for (int i = 0; i < SIG_STACK_COUNT; i++) {
505	<	void *sig_stack = malloc(SIG_STACK_SIZE);
506	<	D(bug("Signal stack %d at %p\n", i, sig_stack));
507	<	if (sig_stack == NULL) {
508	<	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
534	<	goto quit;
535	<	}
536	<	sig_stacks[i].ss_sp = sig_stack;
537	<	sig_stacks[i].ss_flags = 0;
538	<	sig_stacks[i].ss_size = SIG_STACK_SIZE;
504	>	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
505	>	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
506	>	if (sig_stack.ss_sp == NULL) {
507	>	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
508	>	goto quit;
509		}
510	<	sig_stack_id = 0;
511	<	if (sigaltstack(&sig_stacks[0], NULL) < 0) {
510	>	sig_stack.ss_flags = 0;
511	>	sig_stack.ss_size = SIG_STACK_SIZE;
512	>	if (sigaltstack(&sig_stack, NULL) < 0) {
513		sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
514		ErrorAlert(str);
515		goto quit;
516		}
517	+	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
518	+	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
519	+	if (extra_stack.ss_sp == NULL) {
520	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
521	+	goto quit;
522	+	}
523	+	extra_stack.ss_flags = 0;
524	+	extra_stack.ss_size = SIG_STACK_SIZE;
525		#endif
526
527		#if !EMULATED_PPC
#	Line 555 \| Line 534 \| int main(int argc, char argv)**
534		sigsegv_action.sa_restorer = NULL;
535		#endif
536		if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
537	<	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
537	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
538		ErrorAlert(str);
539		goto quit;
540		}
541		if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
542	<	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
542	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGBUS", strerror(errno));
543		ErrorAlert(str);
544		goto quit;
545		}
546		#else
547		// Install SIGSEGV handler for CPU emulator
548		if (!sigsegv_install_handler(sigsegv_handler)) {
549	<	sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
549	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
550		ErrorAlert(str);
551		goto quit;
552		}
#	Line 659 \| Line 638 \| int main(int argc, char argv)**
638		{ 0xffff0000, 0x80010000, "7455" },
639		{ 0xffff0000, 0x80020000, "7457" },
640		{ 0xffff0000, 0x80030000, "7447A" },
641	+	{ 0xffff0000, 0x80040000, "7448" },
642		{ 0x7fff0000, 0x00810000, "82xx" },
643		{ 0x7fff0000, 0x00820000, "8280" },
644		{ 0xffff0000, 0x00400000, "Power3 (630)" },
#	Line 667 \| Line 647 \| int main(int argc, char argv)**
647		{ 0xffff0000, 0x00370000, "S-star" },
648		{ 0xffff0000, 0x00350000, "Power4" },
649		{ 0xffff0000, 0x00390000, "PPC970" },
650	+	{ 0xffff0000, 0x003c0000, "PPC970FX" },
651	+	{ 0xffff0000, 0x003a0000, "POWER5 (gr)" },
652	+	{ 0xffff0000, 0x003b0000, "POWER5+ (gs)" },
653	+	{ 0xffff0000, 0x003e0000, "POWER6" },
654	+	{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
655	+	{ 0x7fff0000, 0x00900000, "PA6T" },
656		{ 0, 0, 0 }
657		};
658
#	Line 680 \| Line 666 \| int main(int argc, char argv)**
666
667		// Parse line
668		int i;
669	+	float f;
670		char value[256];
671	<	if (sscanf(line, "cpu : %[0-9A-Za-a]", value) == 1) {
671	>	if (sscanf(line, "cpu : %[^,]", value) == 1) {
672		// Search by name
673		const char *cpu_name = NULL;
674		for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
#	Line 696 \| Line 683 \| int main(int argc, char argv)**
683		else
684		printf("Found a PowerPC %s processor\n", cpu_name);
685		}
686	<	if (sscanf(line, "clock : %dMHz", &i) == 1)
686	>	if (sscanf(line, "clock : %fMHz", &f) == 1)
687	>	CPUClockSpeed = BusClockSpeed = ((int64)f) * 1000000;
688	>	else if (sscanf(line, "clock : %dMHz", &i) == 1)
689		CPUClockSpeed = BusClockSpeed = i * 1000000;
690		}
691		fclose(proc_file);
#	Line 740 \| Line 729 \| int main(int argc, char argv)**
729		case 0x8000: // 7450
730		case 0x8001: // 7455
731		case 0x8002: // 7457
732	+	case 0x8003: // 7447A
733	+	case 0x8004: // 7448
734		case 0x0039: // 970
735	+	case 0x003c: // 970FX
736		PVR = 0x000c0000; // 7400
737		break;
738		}
#	Line 767 \| Line 759 \| int main(int argc, char argv)**
759		goto quit;
760		}
761
770	–	#ifndef PAGEZERO_HACK
771	–	// Create Low Memory area (0x0000..0x3000)
772	–	if (vm_acquire_fixed((char *)NATMEM_OFFSET, 0x3000) < 0) {
773	–	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
774	–	ErrorAlert(str);
775	–	goto quit;
776	–	}
777	–	lm_area_mapped = true;
778	–	#endif
779	–
762		// Create areas for Kernel Data
763	<	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
782	<	if (kernel_area == -1) {
783	<	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
784	<	ErrorAlert(str);
785	<	goto quit;
786	<	}
787	<	if (shmat(kernel_area, (void *)(KERNEL_DATA_BASE + NATMEM_OFFSET), 0) < 0) {
788	<	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
789	<	ErrorAlert(str);
790	<	goto quit;
791	<	}
792	<	if (shmat(kernel_area, (void *)(KERNEL_DATA2_BASE + NATMEM_OFFSET), 0) < 0) {
793	<	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
794	<	ErrorAlert(str);
763	>	if (!kernel_data_init())
764		goto quit;
765	<	}
797	<	kernel_data = (KernelData *)(KERNEL_DATA_BASE + NATMEM_OFFSET);
765	>	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
766		emulator_data = &kernel_data->ed;
767		KernelDataAddr = KERNEL_DATA_BASE;
768		D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE));
769		D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
770
771		// Create area for DR Cache
772	<	if (vm_acquire_fixed((void *)(DR_EMULATOR_BASE + NATMEM_OFFSET), DR_EMULATOR_SIZE) < 0) {
772	>	if (vm_mac_acquire(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
773		sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
774		ErrorAlert(str);
775		goto quit;
776		}
777		dr_emulator_area_mapped = true;
778	<	if (vm_acquire_fixed((void *)(DR_CACHE_BASE + NATMEM_OFFSET), DR_CACHE_SIZE) < 0) {
778	>	if (vm_mac_acquire(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
779		sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
780		ErrorAlert(str);
781		goto quit;
#	Line 831 \| Line 799 \| int main(int argc, char argv)**
799		}
800
801		// Create area for Mac ROM
802	<	ROMBaseHost = (uint8 *)(ROM_BASE + NATMEM_OFFSET);
835	<	if (vm_acquire_fixed(ROMBaseHost, ROM_AREA_SIZE) < 0) {
802	>	if (vm_mac_acquire(ROM_BASE, ROM_AREA_SIZE) < 0) {
803		sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
804		ErrorAlert(str);
805		goto quit;
806		}
807	+	ROMBaseHost = Mac2HostAddr(ROM_BASE);
808		#if !EMULATED_PPC
809		if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
810		sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
#	Line 853 \| Line 821 \| int main(int argc, char argv)**
821		WarningAlert(GetString(STR_SMALL_RAM_WARN));
822		RAMSize = 810241024;
823		}
824	<
825	<	RAMBaseHost = (uint8 *)(RAM_BASE + NATMEM_OFFSET);
826	<	if (vm_acquire_fixed(RAMBaseHost, RAMSize) < 0) {
827	<	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
828	<	ErrorAlert(str);
829	<	goto quit;
824	>	memory_mapped_from_zero = false;
825	>	#if REAL_ADDRESSING && HAVE_LINKER_SCRIPT
826	>	if (vm_mac_acquire(0, RAMSize) == 0) {
827	>	D(bug("Could allocate RAM from 0x0000\n"));
828	>	RAMBase = 0;
829	>	memory_mapped_from_zero = true;
830		}
831	+	#endif
832	+	if (!memory_mapped_from_zero) {
833	+	#ifndef PAGEZERO_HACK
834	+	// Create Low Memory area (0x0000..0x3000)
835	+	if (vm_mac_acquire(0, 0x3000) < 0) {
836	+	sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
837	+	ErrorAlert(str);
838	+	goto quit;
839	+	}
840	+	lm_area_mapped = true;
841	+	#endif
842	+	if (vm_mac_acquire(RAM_BASE, RAMSize) < 0) {
843	+	sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
844	+	ErrorAlert(str);
845	+	goto quit;
846	+	}
847	+	RAMBase = RAM_BASE;
848	+	}
849	+	RAMBaseHost = Mac2HostAddr(RAMBase);
850		#if !EMULATED_PPC
851		if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
852		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
#	Line 867 \| Line 854 \| int main(int argc, char argv)**
854		goto quit;
855		}
856		#endif
870	–	RAMBase = RAM_BASE;
857		ram_area_mapped = true;
858		D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
859
#	Line 905 \| Line 891 \| int main(int argc, char argv)**
891		}
892		delete[] rom_tmp;
893
894	<	// Load NVRAM
895	<	XPRAMInit();
910	<
911	<	// Load XPRAM default values if signature not found
912	<	if (XPRAM[0x130c] != 0x4e \|\| XPRAM[0x130d] != 0x75
913	<	\|\| XPRAM[0x130e] != 0x4d \|\| XPRAM[0x130f] != 0x63) {
914	<	D(bug("Loading XPRAM default values\n"));
915	<	memset(XPRAM + 0x1300, 0, 0x100);
916	<	XPRAM[0x130c] = 0x4e; // "NuMc" signature
917	<	XPRAM[0x130d] = 0x75;
918	<	XPRAM[0x130e] = 0x4d;
919	<	XPRAM[0x130f] = 0x63;
920	<	XPRAM[0x1301] = 0x80; // InternalWaitFlags = DynWait (don't wait for SCSI devices upon bootup)
921	<	XPRAM[0x1310] = 0xa8; // Standard PRAM values
922	<	XPRAM[0x1311] = 0x00;
923	<	XPRAM[0x1312] = 0x00;
924	<	XPRAM[0x1313] = 0x22;
925	<	XPRAM[0x1314] = 0xcc;
926	<	XPRAM[0x1315] = 0x0a;
927	<	XPRAM[0x1316] = 0xcc;
928	<	XPRAM[0x1317] = 0x0a;
929	<	XPRAM[0x131c] = 0x00;
930	<	XPRAM[0x131d] = 0x02;
931	<	XPRAM[0x131e] = 0x63;
932	<	XPRAM[0x131f] = 0x00;
933	<	XPRAM[0x1308] = 0x13;
934	<	XPRAM[0x1309] = 0x88;
935	<	XPRAM[0x130a] = 0x00;
936	<	XPRAM[0x130b] = 0xcc;
937	<	XPRAM[0x1376] = 0x00; // OSDefault = MacOS
938	<	XPRAM[0x1377] = 0x01;
939	<	}
940	<
941	<	// Set boot volume
942	<	i16 = PrefsFindInt32("bootdrive");
943	<	XPRAM[0x1378] = i16 >> 8;
944	<	XPRAM[0x1379] = i16 & 0xff;
945	<	i16 = PrefsFindInt32("bootdriver");
946	<	XPRAM[0x137a] = i16 >> 8;
947	<	XPRAM[0x137b] = i16 & 0xff;
948	<
949	<	// Create BootGlobs at top of Mac memory
950	<	memset(RAMBaseHost + RAMSize - 4096, 0, 4096);
951	<	BootGlobsAddr = RAMBase + RAMSize - 0x1c;
952	<	WriteMacInt32(BootGlobsAddr - 5 * 4, RAMBase + RAMSize); // MemTop
953	<	WriteMacInt32(BootGlobsAddr + 0 * 4, RAMBase); // First RAM bank
954	<	WriteMacInt32(BootGlobsAddr + 1 * 4, RAMSize);
955	<	WriteMacInt32(BootGlobsAddr + 2 * 4, (uint32)-1); // End of bank table
956	<
957	<	// Init thunks
958	<	if (!ThunksInit())
959	<	goto quit;
960	<
961	<	// Init drivers
962	<	SonyInit();
963	<	DiskInit();
964	<	CDROMInit();
965	<	SCSIInit();
966	<
967	<	// Init external file system
968	<	ExtFSInit();
969	<
970	<	// Init ADB
971	<	ADBInit();
972	<
973	<	// Init audio
974	<	AudioInit();
975	<
976	<	// Init network
977	<	EtherInit();
978	<
979	<	// Init serial ports
980	<	SerialInit();
981	<
982	<	// Init Time Manager
983	<	TimerInit();
984	<
985	<	// Init clipboard
986	<	ClipInit();
987	<
988	<	// Init video
989	<	if (!VideoInit())
990	<	goto quit;
991	<
992	<	// Install ROM patches
993	<	if (!PatchROM()) {
994	<	ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
894	>	// Initialize everything
895	>	if (!InitAll())
896		goto quit;
897	<	}
897	>	D(bug("Initialization complete\n"));
898
899		// Clear caches (as we loaded and patched code) and write protect ROM
900		#if !EMULATED_PPC
901	<	MakeExecutable(0, ROM_BASE, ROM_AREA_SIZE);
901	>	flush_icache_range(ROM_BASE, ROM_BASE + ROM_AREA_SIZE);
902		#endif
903		vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ \| VM_PAGE_EXECUTE);
904
1004	–	// Initialize Kernel Data
1005	–	memset(kernel_data, 0, sizeof(KernelData));
1006	–	if (ROMType == ROMTYPE_NEWWORLD) {
1007	–	uint32 of_dev_tree = SheepMem::Reserve(4 * sizeof(uint32));
1008	–	Mac_memset(of_dev_tree, 0, 4 * sizeof(uint32));
1009	–	uint32 vector_lookup_tbl = SheepMem::Reserve(128);
1010	–	uint32 vector_mask_tbl = SheepMem::Reserve(64);
1011	–	memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
1012	–	Mac_memset(vector_lookup_tbl, 0, 128);
1013	–	Mac_memset(vector_mask_tbl, 0, 64);
1014	–	kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
1015	–	kernel_data->v[0xb84 >> 2] = htonl(of_dev_tree); // OF device tree base
1016	–	kernel_data->v[0xb90 >> 2] = htonl(vector_lookup_tbl);
1017	–	kernel_data->v[0xb94 >> 2] = htonl(vector_mask_tbl);
1018	–	kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE); // OpenPIC base
1019	–	kernel_data->v[0xbb0 >> 2] = htonl(0); // ADB base
1020	–	kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
1021	–	kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
1022	–	kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
1023	–	kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
1024	–	kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
1025	–	kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
1026	–	kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
1027	–	kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
1028	–	kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
1029	–	kernel_data->v[0xf60 >> 2] = htonl(PVR);
1030	–	kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed); // clock-frequency
1031	–	kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed); // bus-frequency
1032	–	kernel_data->v[0xf6c >> 2] = htonl(TimebaseSpeed); // timebase-frequency
1033	–	} else {
1034	–	kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
1035	–	kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
1036	–	kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
1037	–	kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
1038	–	kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
1039	–	kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
1040	–	kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
1041	–	kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
1042	–	kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
1043	–	kernel_data->v[0xf80 >> 2] = htonl(PVR);
1044	–	kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed); // clock-frequency
1045	–	kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed); // bus-frequency
1046	–	kernel_data->v[0xf8c >> 2] = htonl(TimebaseSpeed); // timebase-frequency
1047	–	}
1048	–
1049	–	// Initialize extra low memory
1050	–	D(bug("Initializing Low Memory...\n"));
1051	–	Mac_memset(0, 0, 0x3000);
1052	–	WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h')); // Signature to detect SheepShaver
1053	–	WriteMacInt32(XLM_KERNEL_DATA, KernelDataAddr); // For trap replacement routines
1054	–	WriteMacInt32(XLM_PVR, PVR); // Theoretical PVR
1055	–	WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed); // For DriverServicesLib patch
1056	–	WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN); // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
1057	–	WriteMacInt32(XLM_ZERO_PAGE, SheepMem::ZeroPage()); // Pointer to read-only page with all bits set to 0
1058	–	#if !EMULATED_PPC
1059	–	WriteMacInt32(XLM_TOC, (uint32)TOC); // TOC pointer of emulator
1060	–	#endif
1061	–	WriteMacInt32(XLM_ETHER_INIT, NativeFunction(NATIVE_ETHER_INIT)); // DLPI ethernet driver functions
1062	–	WriteMacInt32(XLM_ETHER_TERM, NativeFunction(NATIVE_ETHER_TERM));
1063	–	WriteMacInt32(XLM_ETHER_OPEN, NativeFunction(NATIVE_ETHER_OPEN));
1064	–	WriteMacInt32(XLM_ETHER_CLOSE, NativeFunction(NATIVE_ETHER_CLOSE));
1065	–	WriteMacInt32(XLM_ETHER_WPUT, NativeFunction(NATIVE_ETHER_WPUT));
1066	–	WriteMacInt32(XLM_ETHER_RSRV, NativeFunction(NATIVE_ETHER_RSRV));
1067	–	WriteMacInt32(XLM_VIDEO_DOIO, NativeFunction(NATIVE_VIDEO_DO_DRIVER_IO));
1068	–	D(bug("Low Memory initialized\n"));
1069	–
905		// Start 60Hz thread
906		tick_thread_cancel = false;
907		tick_thread_active = (pthread_create(&tick_thread, NULL, tick_func, NULL) == 0);
#	Line 1088 \| Line 923 \| int main(int argc, char argv)**
923		sigill_action.sa_restorer = NULL;
924		#endif
925		if (sigaction(SIGILL, &sigill_action, NULL) < 0) {
926	<	sprintf(str, GetString(STR_SIGILL_INSTALL_ERR), strerror(errno));
926	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGILL", strerror(errno));
927		ErrorAlert(str);
928		goto quit;
929		}
#	Line 1097 \| Line 932 \| int main(int argc, char argv)**
932		#if !EMULATED_PPC
933		// Install interrupt signal handler
934		sigemptyset(&sigusr2_action.sa_mask);
935	<	sigusr2_action.sa_sigaction = sigusr2_handler;
935	>	sigusr2_action.sa_sigaction = sigusr2_handler_init;
936		sigusr2_action.sa_flags = SA_ONSTACK \| SA_RESTART \| SA_SIGINFO;
937		#ifdef HAVE_SIGNAL_SA_RESTORER
938		sigusr2_action.sa_restorer = NULL;
939		#endif
940		if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
941	<	sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
941	>	sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGUSR2", strerror(errno));
942		ErrorAlert(str);
943		goto quit;
944		}
#	Line 1160 \| Line 995 \| static void Quit(void)
995		sigaction(SIGILL, &sigill_action, NULL);
996
997		// Delete stacks for signal handlers
998	<	for (int i = 0; i < SIG_STACK_COUNT; i++) {
999	<	void *sig_stack = sig_stacks[i].ss_sp;
1000	<	if (sig_stack)
1001	<	free(sig_stack);
1167	<	}
998	>	if (sig_stack.ss_sp)
999	>	free(sig_stack.ss_sp);
1000	>	if (extra_stack.ss_sp)
1001	>	free(extra_stack.ss_sp);
1002		#endif
1003
1004	<	// Save NVRAM
1005	<	XPRAMExit();
1172	<
1173	<	// Exit clipboard
1174	<	ClipExit();
1175	<
1176	<	// Exit Time Manager
1177	<	TimerExit();
1178	<
1179	<	// Exit serial
1180	<	SerialExit();
1181	<
1182	<	// Exit network
1183	<	EtherExit();
1184	<
1185	<	// Exit audio
1186	<	AudioExit();
1187	<
1188	<	// Exit ADB
1189	<	ADBExit();
1190	<
1191	<	// Exit video
1192	<	VideoExit();
1193	<
1194	<	// Exit external file system
1195	<	ExtFSExit();
1196	<
1197	<	// Exit drivers
1198	<	SCSIExit();
1199	<	CDROMExit();
1200	<	DiskExit();
1201	<	SonyExit();
1202	<
1203	<	// Delete thunks
1204	<	ThunksExit();
1004	>	// Deinitialize everything
1005	>	ExitAll();
1006
1007		// Delete SheepShaver globals
1008		SheepMem::Exit();
1009
1010		// Delete RAM area
1011		if (ram_area_mapped)
1012	<	vm_release(RAMBaseHost, RAMSize);
1012	>	vm_mac_release(RAMBase, RAMSize);
1013
1014		// Delete ROM area
1015		if (rom_area_mapped)
1016	<	vm_release(ROMBaseHost, ROM_AREA_SIZE);
1016	>	vm_mac_release(ROM_BASE, ROM_AREA_SIZE);
1017
1018		// Delete DR cache areas
1019		if (dr_emulator_area_mapped)
1020	<	vm_release((void *)(DR_EMULATOR_BASE + NATMEM_OFFSET), DR_EMULATOR_SIZE);
1020	>	vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
1021		if (dr_cache_area_mapped)
1022	<	vm_release((void *)(DR_CACHE_BASE + NATMEM_OFFSET), DR_CACHE_SIZE);
1022	>	vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE);
1023
1024		// Delete Kernel Data area
1025	<	if (kernel_area >= 0) {
1225	<	shmdt((void *)(KERNEL_DATA_BASE + NATMEM_OFFSET));
1226	<	shmdt((void *)(KERNEL_DATA2_BASE + NATMEM_OFFSET));
1227	<	shmctl(kernel_area, IPC_RMID, NULL);
1228	<	}
1025	>	kernel_data_exit();
1026
1027		// Delete Low Memory area
1028		if (lm_area_mapped)
1029	<	vm_release((void *)NATMEM_OFFSET, 0x3000);
1029	>	vm_mac_release(0, 0x3000);
1030
1031		// Close /dev/zero
1032		if (zero_fd > 0)
#	Line 1252 \| Line 1049 \| static void Quit(void)
1049		XCloseDisplay(x_display);
1050		#endif
1051
1052	+	// Notify GUI we are about to leave
1053	+	if (gui_connection) {
1054	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_EXIT, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
1055	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID);
1056	+	}
1057	+
1058		exit(0);
1059		}
1060
1061
1062		/*
1063	+	* Initialize Kernel Data segments
1064	+	*/
1065	+
1066	+	static bool kernel_data_init(void)
1067	+	{
1068	+	char str[256];
1069	+	uint32 kernel_area_size = (KERNEL_AREA_SIZE + SHMLBA - 1) & -SHMLBA;
1070	+
1071	+	kernel_area = shmget(IPC_PRIVATE, kernel_area_size, 0600);
1072	+	if (kernel_area == -1) {
1073	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
1074	+	ErrorAlert(str);
1075	+	return false;
1076	+	}
1077	+	void *kernel_addr = Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA);
1078	+	if (shmat(kernel_area, kernel_addr, 0) != kernel_addr) {
1079	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
1080	+	ErrorAlert(str);
1081	+	return false;
1082	+	}
1083	+	kernel_addr = Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA);
1084	+	if (shmat(kernel_area, kernel_addr, 0) != kernel_addr) {
1085	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
1086	+	ErrorAlert(str);
1087	+	return false;
1088	+	}
1089	+	return true;
1090	+	}
1091	+
1092	+
1093	+	/*
1094	+	* Deallocate Kernel Data segments
1095	+	*/
1096	+
1097	+	static void kernel_data_exit(void)
1098	+	{
1099	+	if (kernel_area >= 0) {
1100	+	shmdt(Mac2HostAddr(KERNEL_DATA_BASE & -SHMLBA));
1101	+	shmdt(Mac2HostAddr(KERNEL_DATA2_BASE & -SHMLBA));
1102	+	shmctl(kernel_area, IPC_RMID, NULL);
1103	+	}
1104	+	}
1105	+
1106	+
1107	+	/*
1108		* Jump into Mac ROM, start 680x0 emulator
1109		*/
1110
#	Line 1343 \| Line 1191 \| void QuitEmulator(void)
1191
1192
1193		/*
1346	–	* Pause/resume emulator
1347	–	*/
1348	–
1349	–	void PauseEmulator(void)
1350	–	{
1351	–	pthread_kill(emul_thread, SIGSTOP);
1352	–	}
1353	–
1354	–	void ResumeEmulator(void)
1355	–	{
1356	–	pthread_kill(emul_thread, SIGCONT);
1357	–	}
1358	–
1359	–
1360	–	/*
1194		* Dump 68k registers
1195		*/
1196
#	Line 1392 \| Line 1225 \| void MakeExecutable(int dummy, uint32 st
1225		#if EMULATED_PPC
1226		FlushCodeCache(start, start + length);
1227		#else
1228	<	flush_icache_range(start, (void *)(start + length));
1228	>	flush_icache_range(start, start + length);
1229		#endif
1230		}
1231
1232
1233		/*
1401	–	* Patch things after system startup (gets called by disk driver accRun routine)
1402	–	*/
1403	–
1404	–	void PatchAfterStartup(void)
1405	–	{
1406	–	ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL);
1407	–	InstallExtFS();
1408	–	}
1409	–
1410	–
1411	–	/*
1234		* NVRAM watchdog thread (saves NVRAM every minute)
1235		*/
1236
#	Line 1511 \| Line 1333 \| *static void tick_func(void arg)*
1333		}
1334
1335		uint64 end = GetTicks_usec();
1336	<	D(bug("%Ld ticks in %Ld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1336	>	D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1337		return NULL;
1338		}
1339
#	Line 1561 \| Line 1383 \| struct B2_mutex {
1383		pthread_mutexattr_init(&attr);
1384		// Initialize the mutex for priority inheritance --
1385		// required for accurate timing.
1386	<	#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL
1386	>	#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
1387		pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
1388		#endif
1389		#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
#	Line 1635 \| Line 1457 \| *void B2_delete_mutex(B2_mutex mutex)**
1457		#if !EMULATED_PPC
1458		void TriggerInterrupt(void)
1459		{
1460	<	if (ready_for_signals)
1460	>	if (ready_for_signals) {
1461	>	idle_resume();
1462		pthread_kill(emul_thread, SIGUSR2);
1463	+	}
1464		}
1465		#endif
1466
#	Line 1691 \| Line 1515 \| void EnableInterrupt(void)
1515		*/
1516
1517		#if !EMULATED_PPC
1518	<	static void sigusr2_handler(int sig, siginfo_t sip, void scp)
1518	>	void sigusr2_handler(int sig, siginfo_t sip, void scp)
1519		{
1520		machine_regs *r = MACHINE_REGISTERS(scp);
1521
1522	+	#ifdef SYSTEM_CLOBBERS_R2
1523	+	// Restore pointer to Thread Local Storage
1524	+	set_r2(TOC);
1525	+	#endif
1526	+	#ifdef SYSTEM_CLOBBERS_R13
1527	+	// Restore pointer to .sdata section
1528	+	set_r13(R13);
1529	+	#endif
1530	+
1531		#ifdef USE_SDL_VIDEO
1532		// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1533		SDL_PumpEvents();
#	Line 1720 \| Line 1553 \| static void sigusr2_handler(int sig, sig
1553		// 68k emulator inactive, in nanokernel?
1554		if (r->gpr(1) != KernelDataAddr) {
1555
1556	<	// Set extra stack for nested interrupts
1557	<	sig_stack_acquire();
1556	>	// Set extra stack for SIGSEGV handler
1557	>	sigaltstack(&extra_stack, NULL);
1558
1559		// Prepare for 68k interrupt level 1
1560		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
#	Line 1734 \| Line 1567 \| static void sigusr2_handler(int sig, sig
1567		else
1568		ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1569
1570	<	// Reset normal signal stack
1571	<	sig_stack_release();
1570	>	// Reset normal stack
1571	>	sigaltstack(&sig_stack, NULL);
1572		}
1573		break;
1574		#endif
#	Line 1746 \| Line 1579 \| static void sigusr2_handler(int sig, sig
1579		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1580
1581		// Set extra stack for SIGSEGV handler
1582	<	sig_stack_acquire();
1582	>	sigaltstack(&extra_stack, NULL);
1583		#if 1
1584		// Execute full 68k interrupt routine
1585		M68kRegisters r;
#	Line 1772 \| Line 1605 \| static void sigusr2_handler(int sig, sig
1605		}
1606		}
1607		#endif
1608	<	// Reset normal signal stack
1609	<	sig_stack_release();
1608	>	// Reset normal stack
1609	>	sigaltstack(&sig_stack, NULL);
1610		}
1611		break;
1612		#endif
#	Line 1794 \| Line 1627 \| static void sigsegv_handler(int sig, sig
1627		// Get effective address
1628		uint32 addr = r->dar();
1629
1630	+	#ifdef SYSTEM_CLOBBERS_R2
1631	+	// Restore pointer to Thread Local Storage
1632	+	set_r2(TOC);
1633	+	#endif
1634	+	#ifdef SYSTEM_CLOBBERS_R13
1635	+	// Restore pointer to .sdata section
1636	+	set_r13(R13);
1637	+	#endif
1638	+
1639		#if ENABLE_VOSF
1640		// Handle screen fault.
1641		extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
#	Line 2043 \| Line 1885 \| static void sigill_handler(int sig, sigi
1885		machine_regs *r = MACHINE_REGISTERS(scp);
1886		char str[256];
1887
1888	+	#ifdef SYSTEM_CLOBBERS_R2
1889	+	// Restore pointer to Thread Local Storage
1890	+	set_r2(TOC);
1891	+	#endif
1892	+	#ifdef SYSTEM_CLOBBERS_R13
1893	+	// Restore pointer to .sdata section
1894	+	set_r13(R13);
1895	+	#endif
1896	+
1897		// Fault in Mac ROM or RAM?
1898		bool mac_fault = (r->pc() >= ROM_BASE) && (r->pc() < (ROM_BASE + ROM_AREA_SIZE)) \|\| (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
1899		if (mac_fault) {
#	Line 2211 \| Line 2062 \| bool SheepMem::Init(void)
2062		page_size = getpagesize();
2063
2064		// Allocate SheepShaver globals
2065	<	if (vm_acquire_fixed((char *)(base + NATMEM_OFFSET), size) < 0)
2065	>	proc = base;
2066	>	if (vm_mac_acquire(base, size) < 0)
2067		return false;
2068
2069	<	// Allocate page with all bits set to 0
2070	<	zero_page = base + size;
2071	<	uint8 zero_page_host = (uint8 )zero_page + NATMEM_OFFSET;
2072	<	if (vm_acquire_fixed(zero_page_host, page_size) < 0)
2073	<	return false;
2222	<	memset(zero_page_host, 0, page_size);
2223	<	if (vm_protect(zero_page_host, page_size, VM_PAGE_READ) < 0)
2069	>	// Allocate page with all bits set to 0, right in the middle
2070	>	// This is also used to catch undesired overlaps between proc and data areas
2071	>	zero_page = proc + (size / 2);
2072	>	Mac_memset(zero_page, 0, page_size);
2073	>	if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0)
2074		return false;
2075
2076		#if EMULATED_PPC
2077		// Allocate alternate stack for PowerPC interrupt routine
2078	<	sig_stack = zero_page + page_size;
2079	<	if (vm_acquire_fixed((char *)(sig_stack + NATMEM_OFFSET), SIG_STACK_SIZE) < 0)
2078	>	sig_stack = base + size;
2079	>	if (vm_mac_acquire(sig_stack, SIG_STACK_SIZE) < 0)
2080		return false;
2081		#endif
2082
2083	<	top = base + size;
2083	>	data = base + size;
2084		return true;
2085		}
2086
2087		void SheepMem::Exit(void)
2088		{
2089	<	if (top) {
2089	>	if (data) {
2090		// Delete SheepShaver globals
2091	<	vm_release((void *)(base + NATMEM_OFFSET), size);
2242	<
2243	<	// Delete zero page
2244	<	vm_release((void *)(zero_page + NATMEM_OFFSET), page_size);
2091	>	vm_mac_release(base, size);
2092
2093		#if EMULATED_PPC
2094		// Delete alternate stack for PowerPC interrupt routine
2095	<	vm_release((void *)(sig_stack + NATMEM_OFFSET), SIG_STACK_SIZE);
2095	>	vm_mac_release(sig_stack, SIG_STACK_SIZE);
2096		#endif
2097		}
2098		}
#	Line 2300 \| Line 2147 \| void display_alert(int title_id, int pre
2147
2148		void ErrorAlert(const char *text)
2149		{
2150	+	if (gui_connection) {
2151	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_ERROR_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2152	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2153	+	return;
2154	+	}
2155		#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2156		if (PrefsFindBool("nogui") \|\| x_display == NULL) {
2157		printf(GetString(STR_SHELL_ERROR_PREFIX), text);
#	Line 2319 \| Line 2171 \| *void ErrorAlert(const char text)**
2171
2172		void WarningAlert(const char *text)
2173		{
2174	+	if (gui_connection) {
2175	+	if (rpc_method_invoke(gui_connection, RPC_METHOD_WARNING_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
2176	+	rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
2177	+	return;
2178	+	}
2179		#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
2180		if (PrefsFindBool("nogui") \|\| x_display == NULL) {
2181		printf(GetString(STR_SHELL_WARNING_PREFIX), text);

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents): Revision 1.52 by gbeauche, 2004-11-13T14:09:15Z vs. Revision 1.78 by asvitkine, 2007-08-27T21:45:13Z

Diff Legend

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.52 by gbeauche, 2004-11-13T14:09:15Z vs.
Revision 1.78 by asvitkine, 2007-08-27T21:45:13Z