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

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.48 by gbeauche, 2004-07-04T05:19:44Z vs.
Revision 1.70 by gbeauche, 2005-07-06T04:58:34Z

#	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
114		#define DEBUG 0
115		#include "debug.h"
#	Line 166 \| Line 154
154		// Interrupts in native mode?
155		#define INTERRUPTS_IN_NATIVE_MODE 1
156
169	–	// Number of alternate stacks for signal handlers?
170	–	#define SIG_STACK_COUNT 4
171	–
157
158		// Constants
159		const char ROM_FILE_NAME[] = "ROM";
160		const char ROM_FILE_NAME2[] = "Mac OS ROM";
161
162	+	#if REAL_ADDRESSING
163		const uintptr RAM_BASE = 0x20000000; // Base address of RAM
164	<	const uint32 SIG_STACK_SIZE = 0x10000; // Size of signal stack
165	<
166	<
181	<	#if !EMULATED_PPC
182	<	struct sigregs {
183	<	uint32 nip;
184	<	uint32 link;
185	<	uint32 ctr;
186	<	uint32 msr;
187	<	uint32 xer;
188	<	uint32 ccr;
189	<	uint32 gpr[32];
190	<	};
191	<
192	<	#if defined(__linux__)
193	<	#include <sys/ucontext.h>
194	<	#define MACHINE_REGISTERS(scp) ((machine_regs )(((ucontext_t )scp)->uc_mcontext.regs))
195	<
196	<	struct machine_regs : public pt_regs
197	<	{
198	<	u_long & cr() { return pt_regs::ccr; }
199	<	uint32 cr() const { return pt_regs::ccr; }
200	<	uint32 lr() const { return pt_regs::link; }
201	<	uint32 ctr() const { return pt_regs::ctr; }
202	<	uint32 xer() const { return pt_regs::xer; }
203	<	uint32 msr() const { return pt_regs::msr; }
204	<	uint32 dar() const { return pt_regs::dar; }
205	<	u_long & pc() { return pt_regs::nip; }
206	<	uint32 pc() const { return pt_regs::nip; }
207	<	u_long & gpr(int i) { return pt_regs::gpr[i]; }
208	<	uint32 gpr(int i) const { return pt_regs::gpr[i]; }
209	<	};
210	<	#endif
211	<
212	<	#if defined(__APPLE__) && defined(__MACH__)
213	<	#include <sys/signal.h>
214	<	extern "C" int sigaltstack(const struct sigaltstack ss, struct sigaltstack oss);
215	<
216	<	#include <sys/ucontext.h>
217	<	#define MACHINE_REGISTERS(scp) ((machine_regs )(((ucontext_t )scp)->uc_mcontext))
218	<
219	<	struct machine_regs : public mcontext
220	<	{
221	<	uint32 & cr() { return ss.cr; }
222	<	uint32 cr() const { return ss.cr; }
223	<	uint32 lr() const { return ss.lr; }
224	<	uint32 ctr() const { return ss.ctr; }
225	<	uint32 xer() const { return ss.xer; }
226	<	uint32 msr() const { return ss.srr1; }
227	<	uint32 dar() const { return es.dar; }
228	<	uint32 & pc() { return ss.srr0; }
229	<	uint32 pc() const { return ss.srr0; }
230	<	uint32 & gpr(int i) { return (&ss.r0)[i]; }
231	<	uint32 gpr(int i) const { return (&ss.r0)[i]; }
232	<	};
233	<	#endif
234	<
235	<	static void build_sigregs(sigregs srp, machine_regs mrp)
236	<	{
237	<	srp->nip = mrp->pc();
238	<	srp->link = mrp->lr();
239	<	srp->ctr = mrp->ctr();
240	<	srp->msr = mrp->msr();
241	<	srp->xer = mrp->xer();
242	<	srp->ccr = mrp->cr();
243	<	for (int i = 0; i < 32; i++)
244	<	srp->gpr[i] = mrp->gpr(i);
245	<	}
246	<
247	<	static struct sigaltstack sig_stacks[SIG_STACK_COUNT]; // Stacks for signal handlers
248	<	static int sig_stack_id = 0; // Stack slot currently used
249	<
250	<	static inline void sig_stack_acquire(void)
251	<	{
252	<	if (++sig_stack_id == SIG_STACK_COUNT) {
253	<	printf("FATAL: signal stack overflow\n");
254	<	return;
255	<	}
256	<	sigaltstack(&sig_stacks[sig_stack_id], NULL);
257	<	}
258	<
259	<	static inline void sig_stack_release(void)
260	<	{
261	<	if (--sig_stack_id < 0) {
262	<	printf("FATAL: signal stack underflow\n");
263	<	return;
264	<	}
265	<	sigaltstack(&sig_stacks[sig_stack_id], NULL);
266	<	}
164	>	#else
165	>	// FIXME: needs to be >= 0x04000000
166	>	const uintptr RAM_BASE = 0x10000000; // Base address of RAM
167		#endif
168	+	const uint32 SIG_STACK_SIZE = 0x10000; // Size of signal stack
169
170
171		// Global variables (exported)
172		#if !EMULATED_PPC
173	<	void *TOC; // Small data pointer (r13)
173	>	void *TOC = NULL; // Pointer to Thread Local Storage (r2)
174	>	void *R13 = NULL; // Pointer to .sdata section (r13 under Linux)
175		#endif
176		uint32 RAMBase; // Base address of Mac RAM
177		uint32 RAMSize; // Size of Mac RAM
#	Line 280 \| Line 182 \| uint32 PVR; // Theoretical PVR
182		int64 CPUClockSpeed; // Processor clock speed (Hz)
183		int64 BusClockSpeed; // Bus clock speed (Hz)
184		int64 TimebaseSpeed; // Timebase clock speed (Hz)
185	+	uint8 *RAMBaseHost; // Base address of Mac RAM (host address space)
186	+	uint8 *ROMBaseHost; // Base address of Mac ROM (host address space)
187
188
189		// Global variables
#	Line 320 \| Line 224 \| static uintptr sig_stack = 0; // Stac
224		#else
225		static struct sigaction sigsegv_action; // Data access exception signal (of emulator thread)
226		static struct sigaction sigill_action; // Illegal instruction signal (of emulator thread)
227	+	static struct sigaltstack sig_stack; // Stack for signal handlers
228	+	static struct sigaltstack extra_stack; // Stack for SIGSEGV inside interrupt handler
229		static bool emul_thread_fatal = false; // Flag: MacOS thread crashed, tick thread shall dump debug output
230		static sigregs sigsegv_regs; // Register dump when crashed
231		static const char *crash_reason = NULL; // Reason of the crash (SIGSEGV, SIGBUS, SIGILL)
#	Line 328 \| Line 234 \| *static const char crash_reason = NULL;**
234		uint32 SheepMem::page_size; // Size of a native page
235		uintptr SheepMem::zero_page = 0; // Address of ro page filled in with zeros
236		uintptr SheepMem::base = 0x60000000; // Address of SheepShaver data
237	<	uintptr SheepMem::top = 0; // Top of SheepShaver data (stack like storage)
237	>	uintptr SheepMem::proc; // Bottom address of SheepShave procedures
238	>	uintptr SheepMem::data; // Top of SheepShaver data (stack like storage)
239
240
241		// Prototypes
242	+	static bool kernel_data_init(void);
243	+	static void kernel_data_exit(void);
244		static void Quit(void);
245		static void emul_func(void arg);
246		static void nvram_func(void arg);
#	Line 342 \| Line 251 \| extern void init_emul_ppc(void);
251		extern void exit_emul_ppc(void);
252		sigsegv_return_t sigsegv_handler(sigsegv_address_t, sigsegv_address_t);
253		#else
254	<	static void sigusr2_handler(int sig, siginfo_t sip, void scp);
254	>	extern "C" void sigusr2_handler_init(int sig, siginfo_t sip, void scp);
255	>	extern "C" void sigusr2_handler(int sig, siginfo_t sip, void scp);
256		static void sigsegv_handler(int sig, siginfo_t sip, void scp);
257		static void sigill_handler(int sig, siginfo_t sip, void scp);
258		#endif
#	Line 350 \| Line 260 \| static void sigill_handler(int sig, sigi
260
261		// From asm_linux.S
262		#if !EMULATED_PPC
353	–	extern "C" void *get_toc(void);
263		extern "C" void *get_sp(void);
264	<	extern "C" void flush_icache_range(void start, void end);
264	>	extern "C" void *get_r2(void);
265	>	extern "C" void set_r2(void *);
266	>	extern "C" void *get_r13(void);
267	>	extern "C" void set_r13(void *);
268	>	extern "C" void flush_icache_range(uint32 start, uint32 end);
269		extern "C" void jump_to_rom(uint32 entry, uint32 context);
270		extern "C" void quit_emulator(void);
271		extern "C" void execute_68k(uint32 pc, M68kRegisters *r);
#	Line 416 \| Line 329 \| *int atomic_or(int var, int v)**
329
330
331		/*
332	+	* Memory management helpers
333	+	*/
334	+
335	+	static inline int vm_mac_acquire(uint32 addr, uint32 size)
336	+	{
337	+	return vm_acquire_fixed(Mac2HostAddr(addr), size);
338	+	}
339	+
340	+	static inline int vm_mac_release(uint32 addr, uint32 size)
341	+	{
342	+	return vm_release(Mac2HostAddr(addr), size);
343	+	}
344	+
345	+
346	+	/*
347		* Main program
348		*/
349
#	Line 431 \| Line 359 \| *static void usage(const char prg_name)**
359		int main(int argc, char **argv)
360		{
361		char str[256];
434	–	uint32 *boot_globs;
435	–	int16 i16;
362		int rom_fd;
363		FILE *proc_file;
364		const char *rom_path;
#	Line 449 \| Line 375 \| int main(int argc, char argv)**
375		printf(" %s\n", GetString(STR_ABOUT_TEXT2));
376
377		#if !EMULATED_PPC
378	+	#ifdef SYSTEM_CLOBBERS_R2
379		// Get TOC pointer
380	<	TOC = get_toc();
380	>	TOC = get_r2();
381	>	#endif
382	>	#ifdef SYSTEM_CLOBBERS_R13
383	>	// Get r13 register
384	>	R13 = get_r13();
385	>	#endif
386		#endif
387
388		#ifdef ENABLE_GTK
#	Line 484 \| Line 416 \| int main(int argc, char argv)**
416		#ifdef USE_SDL_VIDEO
417		sdl_flags \|= SDL_INIT_VIDEO;
418		#endif
419	+	#ifdef USE_SDL_AUDIO
420	+	sdl_flags \|= SDL_INIT_AUDIO;
421	+	#endif
422		assert(sdl_flags != 0);
423		if (SDL_Init(sdl_flags) == -1) {
424		char str[256];
#	Line 517 \| Line 452 \| int main(int argc, char argv)**
452
453		#if !EMULATED_PPC
454		// Create and install stacks for signal handlers
455	<	for (int i = 0; i < SIG_STACK_COUNT; i++) {
456	<	void *sig_stack = malloc(SIG_STACK_SIZE);
457	<	D(bug("Signal stack %d at %p\n", i, sig_stack));
458	<	if (sig_stack == NULL) {
459	<	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
525	<	goto quit;
526	<	}
527	<	sig_stacks[i].ss_sp = sig_stack;
528	<	sig_stacks[i].ss_flags = 0;
529	<	sig_stacks[i].ss_size = SIG_STACK_SIZE;
455	>	sig_stack.ss_sp = malloc(SIG_STACK_SIZE);
456	>	D(bug("Signal stack at %p\n", sig_stack.ss_sp));
457	>	if (sig_stack.ss_sp == NULL) {
458	>	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
459	>	goto quit;
460		}
461	<	sig_stack_id = 0;
462	<	if (sigaltstack(&sig_stacks[0], NULL) < 0) {
461	>	sig_stack.ss_flags = 0;
462	>	sig_stack.ss_size = SIG_STACK_SIZE;
463	>	if (sigaltstack(&sig_stack, NULL) < 0) {
464		sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
465		ErrorAlert(str);
466		goto quit;
467		}
468	+	extra_stack.ss_sp = malloc(SIG_STACK_SIZE);
469	+	D(bug("Extra stack at %p\n", extra_stack.ss_sp));
470	+	if (extra_stack.ss_sp == NULL) {
471	+	ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
472	+	goto quit;
473	+	}
474	+	extra_stack.ss_flags = 0;
475	+	extra_stack.ss_size = SIG_STACK_SIZE;
476		#endif
477
478		#if !EMULATED_PPC
#	Line 612 \| Line 551 \| int main(int argc, char argv)**
551		#else
552		proc_file = fopen("/proc/cpuinfo", "r");
553		if (proc_file) {
554	+	// CPU specs from Linux kernel
555	+	// TODO: make it more generic with features (e.g. AltiVec) and
556	+	// cache information and friends for NameRegistry
557	+	static const struct {
558	+	uint32 pvr_mask;
559	+	uint32 pvr_value;
560	+	const char *cpu_name;
561	+	}
562	+	cpu_specs[] = {
563	+	{ 0xffff0000, 0x00010000, "601" },
564	+	{ 0xffff0000, 0x00030000, "603" },
565	+	{ 0xffff0000, 0x00060000, "603e" },
566	+	{ 0xffff0000, 0x00070000, "603ev" },
567	+	{ 0xffff0000, 0x00040000, "604" },
568	+	{ 0xfffff000, 0x00090000, "604e" },
569	+	{ 0xffff0000, 0x00090000, "604r" },
570	+	{ 0xffff0000, 0x000a0000, "604ev" },
571	+	{ 0xffffffff, 0x00084202, "740/750" },
572	+	{ 0xfffff000, 0x00083000, "745/755" },
573	+	{ 0xfffffff0, 0x00080100, "750CX" },
574	+	{ 0xfffffff0, 0x00082200, "750CX" },
575	+	{ 0xfffffff0, 0x00082210, "750CXe" },
576	+	{ 0xffffff00, 0x70000100, "750FX" },
577	+	{ 0xffffffff, 0x70000200, "750FX" },
578	+	{ 0xffff0000, 0x70000000, "750FX" },
579	+	{ 0xffff0000, 0x70020000, "750GX" },
580	+	{ 0xffff0000, 0x00080000, "740/750" },
581	+	{ 0xffffffff, 0x000c1101, "7400 (1.1)" },
582	+	{ 0xffff0000, 0x000c0000, "7400" },
583	+	{ 0xffff0000, 0x800c0000, "7410" },
584	+	{ 0xffffffff, 0x80000200, "7450" },
585	+	{ 0xffffffff, 0x80000201, "7450" },
586	+	{ 0xffff0000, 0x80000000, "7450" },
587	+	{ 0xffffff00, 0x80010100, "7455" },
588	+	{ 0xffffffff, 0x80010200, "7455" },
589	+	{ 0xffff0000, 0x80010000, "7455" },
590	+	{ 0xffff0000, 0x80020000, "7457" },
591	+	{ 0xffff0000, 0x80030000, "7447A" },
592	+	{ 0x7fff0000, 0x00810000, "82xx" },
593	+	{ 0x7fff0000, 0x00820000, "8280" },
594	+	{ 0xffff0000, 0x00400000, "Power3 (630)" },
595	+	{ 0xffff0000, 0x00410000, "Power3 (630+)" },
596	+	{ 0xffff0000, 0x00360000, "I-star" },
597	+	{ 0xffff0000, 0x00370000, "S-star" },
598	+	{ 0xffff0000, 0x00350000, "Power4" },
599	+	{ 0xffff0000, 0x00390000, "PPC970" },
600	+	{ 0xffff0000, 0x003a0000, "POWER5" },
601	+	{ 0, 0, 0 }
602	+	};
603	+
604		char line[256];
605		while(fgets(line, 255, proc_file)) {
606		// Read line
#	Line 624 \| Line 613 \| int main(int argc, char argv)**
613		int i;
614		char value[256];
615		if (sscanf(line, "cpu : %[0-9A-Za-a]", value) == 1) {
616	<	if (strcmp(value, "601") == 0)
617	<	PVR = 0x00010000;
618	<	else if (strcmp(value, "603") == 0)
619	<	PVR = 0x00030000;
620	<	else if (strcmp(value, "604") == 0)
621	<	PVR = 0x00040000;
622	<	else if (strcmp(value, "603e") == 0)
623	<	PVR = 0x00060000;
624	<	else if (strcmp(value, "603ev") == 0)
625	<	PVR = 0x00070000;
637	<	else if (strcmp(value, "604e") == 0)
638	<	PVR = 0x00090000;
639	<	else if (strcmp(value, "604ev5") == 0)
640	<	PVR = 0x000a0000;
641	<	else if (strcmp(value, "750") == 0)
642	<	PVR = 0x00080000;
643	<	else if (strcmp(value, "750FX") == 0)
644	<	PVR = 0x70000000;
645	<	else if (strcmp(value, "821") == 0)
646	<	PVR = 0x00320000;
647	<	else if (strcmp(value, "860") == 0)
648	<	PVR = 0x00500000;
649	<	else if (strcmp(value, "7400") == 0)
650	<	PVR = 0x000c0000;
651	<	else if (strcmp(value, "7410") == 0)
652	<	PVR = 0x800c0000;
653	<	else if (strcmp(value, "7450") == 0)
654	<	PVR = 0x80000000;
655	<	else if (strcmp(value, "7455") == 0)
656	<	PVR = 0x80010000;
657	<	else if (strcmp(value, "7457") == 0)
658	<	PVR = 0x80020000;
659	<	else if (strcmp(value, "PPC970") == 0)
660	<	PVR = 0x00390000;
661	<	else
616	>	// Search by name
617	>	const char *cpu_name = NULL;
618	>	for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
619	>	if (strcmp(cpu_specs[i].cpu_name, value) == 0) {
620	>	cpu_name = cpu_specs[i].cpu_name;
621	>	PVR = cpu_specs[i].pvr_value;
622	>	break;
623	>	}
624	>	}
625	>	if (cpu_name == NULL)
626		printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
627	+	else
628	+	printf("Found a PowerPC %s processor\n", cpu_name);
629		}
630		if (sscanf(line, "clock : %dMHz", &i) == 1)
631		CPUClockSpeed = BusClockSpeed = i * 1000000;
#	Line 700 \| Line 666 \| int main(int argc, char argv)**
666		closedir(cpus_dir);
667		}
668		#endif
669	+	// Remap any newer G4/G5 processor to plain G4 for compatibility
670	+	switch (PVR >> 16) {
671	+	case 0x8000: // 7450
672	+	case 0x8001: // 7455
673	+	case 0x8002: // 7457
674	+	case 0x8003: // 7447A
675	+	case 0x0039: // 970
676	+	PVR = 0x000c0000; // 7400
677	+	break;
678	+	}
679		D(bug("PVR: %08x (assumed)\n", PVR));
680
681		// Init system routines
#	Line 725 \| Line 701 \| int main(int argc, char argv)**
701
702		#ifndef PAGEZERO_HACK
703		// Create Low Memory area (0x0000..0x3000)
704	<	if (vm_acquire_fixed((char *)0, 0x3000) < 0) {
704	>	if (vm_mac_acquire(0, 0x3000) < 0) {
705		sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
706		ErrorAlert(str);
707		goto quit;
#	Line 734 \| Line 710 \| int main(int argc, char argv)**
710		#endif
711
712		// Create areas for Kernel Data
713	<	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
738	<	if (kernel_area == -1) {
739	<	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
740	<	ErrorAlert(str);
741	<	goto quit;
742	<	}
743	<	if (shmat(kernel_area, (void *)KERNEL_DATA_BASE, 0) < 0) {
744	<	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
745	<	ErrorAlert(str);
713	>	if (!kernel_data_init())
714		goto quit;
715	<	}
748	<	if (shmat(kernel_area, (void *)KERNEL_DATA2_BASE, 0) < 0) {
749	<	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
750	<	ErrorAlert(str);
751	<	goto quit;
752	<	}
753	<	kernel_data = (KernelData *)KERNEL_DATA_BASE;
715	>	kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE);
716		emulator_data = &kernel_data->ed;
717		KernelDataAddr = KERNEL_DATA_BASE;
718	<	D(bug("Kernel Data at %p, Emulator Data at %p\n", kernel_data, emulator_data));
718	>	D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE));
719	>	D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed)));
720
721		// Create area for DR Cache
722	<	if (vm_acquire_fixed((void *)DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
722	>	if (vm_mac_acquire(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) {
723		sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno));
724		ErrorAlert(str);
725		goto quit;
726		}
727		dr_emulator_area_mapped = true;
728	<	if (vm_acquire_fixed((void *)DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
728	>	if (vm_mac_acquire(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) {
729		sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno));
730		ErrorAlert(str);
731		goto quit;
#	Line 786 \| Line 749 \| int main(int argc, char argv)**
749		}
750
751		// Create area for Mac ROM
752	<	if (vm_acquire_fixed((char *)ROM_BASE, ROM_AREA_SIZE) < 0) {
752	>	if (vm_mac_acquire(ROM_BASE, ROM_AREA_SIZE) < 0) {
753		sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
754		ErrorAlert(str);
755		goto quit;
756		}
757	+	ROMBaseHost = Mac2HostAddr(ROM_BASE);
758		#if !EMULATED_PPC
759	<	if (vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
759	>	if (vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
760		sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
761		ErrorAlert(str);
762		goto quit;
763		}
764		#endif
765		rom_area_mapped = true;
766	<	D(bug("ROM area at %08x\n", ROM_BASE));
766	>	D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROM_BASE));
767
768		// Create area for Mac RAM
769		RAMSize = PrefsFindInt32("ramsize");
#	Line 808 \| Line 772 \| int main(int argc, char argv)**
772		RAMSize = 810241024;
773		}
774
775	<	if (vm_acquire_fixed((char *)RAM_BASE, RAMSize) < 0) {
775	>	if (vm_mac_acquire(RAM_BASE, RAMSize) < 0) {
776		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
777		ErrorAlert(str);
778		goto quit;
779		}
780	+	RAMBaseHost = Mac2HostAddr(RAM_BASE);
781		#if !EMULATED_PPC
782	<	if (vm_protect((char *)RAM_BASE, RAMSize, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
782	>	if (vm_protect(RAMBaseHost, RAMSize, VM_PAGE_READ \| VM_PAGE_WRITE \| VM_PAGE_EXECUTE) < 0) {
783		sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
784		ErrorAlert(str);
785		goto quit;
#	Line 822 \| Line 787 \| int main(int argc, char argv)**
787		#endif
788		RAMBase = RAM_BASE;
789		ram_area_mapped = true;
790	<	D(bug("RAM area at %08x\n", RAMBase));
790	>	D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase));
791
792		if (RAMBase > ROM_BASE) {
793		ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
#	Line 858 \| Line 823 \| int main(int argc, char argv)**
823		}
824		delete[] rom_tmp;
825
826	<	// Load NVRAM
827	<	XPRAMInit();
863	<
864	<	// Load XPRAM default values if signature not found
865	<	if (XPRAM[0x130c] != 0x4e \|\| XPRAM[0x130d] != 0x75
866	<	\|\| XPRAM[0x130e] != 0x4d \|\| XPRAM[0x130f] != 0x63) {
867	<	D(bug("Loading XPRAM default values\n"));
868	<	memset(XPRAM + 0x1300, 0, 0x100);
869	<	XPRAM[0x130c] = 0x4e; // "NuMc" signature
870	<	XPRAM[0x130d] = 0x75;
871	<	XPRAM[0x130e] = 0x4d;
872	<	XPRAM[0x130f] = 0x63;
873	<	XPRAM[0x1301] = 0x80; // InternalWaitFlags = DynWait (don't wait for SCSI devices upon bootup)
874	<	XPRAM[0x1310] = 0xa8; // Standard PRAM values
875	<	XPRAM[0x1311] = 0x00;
876	<	XPRAM[0x1312] = 0x00;
877	<	XPRAM[0x1313] = 0x22;
878	<	XPRAM[0x1314] = 0xcc;
879	<	XPRAM[0x1315] = 0x0a;
880	<	XPRAM[0x1316] = 0xcc;
881	<	XPRAM[0x1317] = 0x0a;
882	<	XPRAM[0x131c] = 0x00;
883	<	XPRAM[0x131d] = 0x02;
884	<	XPRAM[0x131e] = 0x63;
885	<	XPRAM[0x131f] = 0x00;
886	<	XPRAM[0x1308] = 0x13;
887	<	XPRAM[0x1309] = 0x88;
888	<	XPRAM[0x130a] = 0x00;
889	<	XPRAM[0x130b] = 0xcc;
890	<	XPRAM[0x1376] = 0x00; // OSDefault = MacOS
891	<	XPRAM[0x1377] = 0x01;
892	<	}
893	<
894	<	// Set boot volume
895	<	i16 = PrefsFindInt32("bootdrive");
896	<	XPRAM[0x1378] = i16 >> 8;
897	<	XPRAM[0x1379] = i16 & 0xff;
898	<	i16 = PrefsFindInt32("bootdriver");
899	<	XPRAM[0x137a] = i16 >> 8;
900	<	XPRAM[0x137b] = i16 & 0xff;
901	<
902	<	// Create BootGlobs at top of Mac memory
903	<	memset((void *)(RAMBase + RAMSize - 4096), 0, 4096);
904	<	BootGlobsAddr = RAMBase + RAMSize - 0x1c;
905	<	boot_globs = (uint32 *)BootGlobsAddr;
906	<	boot_globs[-5] = htonl(RAMBase + RAMSize); // MemTop
907	<	boot_globs[0] = htonl(RAMBase); // First RAM bank
908	<	boot_globs[1] = htonl(RAMSize);
909	<	boot_globs[2] = htonl((uint32)-1); // End of bank table
910	<
911	<	// Init thunks
912	<	if (!ThunksInit())
913	<	goto quit;
914	<
915	<	// Init drivers
916	<	SonyInit();
917	<	DiskInit();
918	<	CDROMInit();
919	<	SCSIInit();
920	<
921	<	// Init external file system
922	<	ExtFSInit();
923	<
924	<	// Init ADB
925	<	ADBInit();
926	<
927	<	// Init audio
928	<	AudioInit();
929	<
930	<	// Init network
931	<	EtherInit();
932	<
933	<	// Init serial ports
934	<	SerialInit();
935	<
936	<	// Init Time Manager
937	<	TimerInit();
938	<
939	<	// Init clipboard
940	<	ClipInit();
941	<
942	<	// Init video
943	<	if (!VideoInit())
944	<	goto quit;
945	<
946	<	// Install ROM patches
947	<	if (!PatchROM()) {
948	<	ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
826	>	// Initialize everything
827	>	if (!InitAll())
828		goto quit;
829	<	}
829	>	D(bug("Initialization complete\n"));
830
831		// Clear caches (as we loaded and patched code) and write protect ROM
832		#if !EMULATED_PPC
833	<	MakeExecutable(0, (void *)ROM_BASE, ROM_AREA_SIZE);
955	<	#endif
956	<	vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ \| VM_PAGE_EXECUTE);
957	<
958	<	// Initialize Kernel Data
959	<	memset(kernel_data, 0, sizeof(KernelData));
960	<	if (ROMType == ROMTYPE_NEWWORLD) {
961	<	uintptr of_dev_tree = SheepMem::Reserve(4 * sizeof(uint32));
962	<	memset((void )of_dev_tree, 0, 4 sizeof(uint32));
963	<	uintptr vector_lookup_tbl = SheepMem::Reserve(128);
964	<	uintptr vector_mask_tbl = SheepMem::Reserve(64);
965	<	memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
966	<	memset((void *)vector_lookup_tbl, 0, 128);
967	<	memset((void *)vector_mask_tbl, 0, 64);
968	<	kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
969	<	kernel_data->v[0xb84 >> 2] = htonl(of_dev_tree); // OF device tree base
970	<	kernel_data->v[0xb90 >> 2] = htonl(vector_lookup_tbl);
971	<	kernel_data->v[0xb94 >> 2] = htonl(vector_mask_tbl);
972	<	kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE); // OpenPIC base
973	<	kernel_data->v[0xbb0 >> 2] = htonl(0); // ADB base
974	<	kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
975	<	kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
976	<	kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
977	<	kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
978	<	kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
979	<	kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
980	<	kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
981	<	kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
982	<	kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
983	<	kernel_data->v[0xf60 >> 2] = htonl(PVR);
984	<	kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed); // clock-frequency
985	<	kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed); // bus-frequency
986	<	kernel_data->v[0xf6c >> 2] = htonl(TimebaseSpeed); // timebase-frequency
987	<	} else {
988	<	kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
989	<	kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
990	<	kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
991	<	kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
992	<	kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
993	<	kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
994	<	kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
995	<	kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
996	<	kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
997	<	kernel_data->v[0xf80 >> 2] = htonl(PVR);
998	<	kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed); // clock-frequency
999	<	kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed); // bus-frequency
1000	<	kernel_data->v[0xf8c >> 2] = htonl(TimebaseSpeed); // timebase-frequency
1001	<	}
1002	<
1003	<	// Initialize extra low memory
1004	<	D(bug("Initializing Low Memory...\n"));
1005	<	memset(NULL, 0, 0x3000);
1006	<	WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h')); // Signature to detect SheepShaver
1007	<	WriteMacInt32(XLM_KERNEL_DATA, KernelDataAddr); // For trap replacement routines
1008	<	WriteMacInt32(XLM_PVR, PVR); // Theoretical PVR
1009	<	WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed); // For DriverServicesLib patch
1010	<	WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN); // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
1011	<	WriteMacInt32(XLM_ZERO_PAGE, SheepMem::ZeroPage()); // Pointer to read-only page with all bits set to 0
1012	<	#if !EMULATED_PPC
1013	<	WriteMacInt32(XLM_TOC, (uint32)TOC); // TOC pointer of emulator
833	>	flush_icache_range(ROM_BASE, ROM_BASE + ROM_AREA_SIZE);
834		#endif
835	<	WriteMacInt32(XLM_ETHER_INIT, NativeFunction(NATIVE_ETHER_INIT)); // DLPI ethernet driver functions
1016	<	WriteMacInt32(XLM_ETHER_TERM, NativeFunction(NATIVE_ETHER_TERM));
1017	<	WriteMacInt32(XLM_ETHER_OPEN, NativeFunction(NATIVE_ETHER_OPEN));
1018	<	WriteMacInt32(XLM_ETHER_CLOSE, NativeFunction(NATIVE_ETHER_CLOSE));
1019	<	WriteMacInt32(XLM_ETHER_WPUT, NativeFunction(NATIVE_ETHER_WPUT));
1020	<	WriteMacInt32(XLM_ETHER_RSRV, NativeFunction(NATIVE_ETHER_RSRV));
1021	<	WriteMacInt32(XLM_VIDEO_DOIO, NativeFunction(NATIVE_VIDEO_DO_DRIVER_IO));
1022	<	D(bug("Low Memory initialized\n"));
835	>	vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ \| VM_PAGE_EXECUTE);
836
837		// Start 60Hz thread
838		tick_thread_cancel = false;
#	Line 1051 \| Line 864 \| int main(int argc, char argv)**
864		#if !EMULATED_PPC
865		// Install interrupt signal handler
866		sigemptyset(&sigusr2_action.sa_mask);
867	<	sigusr2_action.sa_sigaction = sigusr2_handler;
867	>	sigusr2_action.sa_sigaction = sigusr2_handler_init;
868		sigusr2_action.sa_flags = SA_ONSTACK \| SA_RESTART \| SA_SIGINFO;
869		#ifdef HAVE_SIGNAL_SA_RESTORER
870		sigusr2_action.sa_restorer = NULL;
#	Line 1114 \| Line 927 \| static void Quit(void)
927		sigaction(SIGILL, &sigill_action, NULL);
928
929		// Delete stacks for signal handlers
930	<	for (int i = 0; i < SIG_STACK_COUNT; i++) {
931	<	void *sig_stack = sig_stacks[i].ss_sp;
932	<	if (sig_stack)
933	<	free(sig_stack);
1121	<	}
930	>	if (sig_stack.ss_sp)
931	>	free(sig_stack.ss_sp);
932	>	if (extra_stack.ss_sp)
933	>	free(extra_stack.ss_sp);
934		#endif
935
936	<	// Save NVRAM
937	<	XPRAMExit();
1126	<
1127	<	// Exit clipboard
1128	<	ClipExit();
1129	<
1130	<	// Exit Time Manager
1131	<	TimerExit();
1132	<
1133	<	// Exit serial
1134	<	SerialExit();
1135	<
1136	<	// Exit network
1137	<	EtherExit();
1138	<
1139	<	// Exit audio
1140	<	AudioExit();
1141	<
1142	<	// Exit ADB
1143	<	ADBExit();
1144	<
1145	<	// Exit video
1146	<	VideoExit();
1147	<
1148	<	// Exit external file system
1149	<	ExtFSExit();
1150	<
1151	<	// Exit drivers
1152	<	SCSIExit();
1153	<	CDROMExit();
1154	<	DiskExit();
1155	<	SonyExit();
1156	<
1157	<	// Delete thunks
1158	<	ThunksExit();
936	>	// Deinitialize everything
937	>	ExitAll();
938
939		// Delete SheepShaver globals
940		SheepMem::Exit();
941
942		// Delete RAM area
943		if (ram_area_mapped)
944	<	vm_release((char *)RAM_BASE, RAMSize);
944	>	vm_mac_release(RAM_BASE, RAMSize);
945
946		// Delete ROM area
947		if (rom_area_mapped)
948	<	vm_release((char *)ROM_BASE, ROM_AREA_SIZE);
948	>	vm_mac_release(ROM_BASE, ROM_AREA_SIZE);
949
950		// Delete DR cache areas
951		if (dr_emulator_area_mapped)
952	<	vm_release((void *)DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
952	>	vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE);
953		if (dr_cache_area_mapped)
954	<	vm_release((void *)DR_CACHE_BASE, DR_CACHE_SIZE);
954	>	vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE);
955
956		// Delete Kernel Data area
957	<	if (kernel_area >= 0) {
1179	<	shmdt((void *)KERNEL_DATA_BASE);
1180	<	shmdt((void *)KERNEL_DATA2_BASE);
1181	<	shmctl(kernel_area, IPC_RMID, NULL);
1182	<	}
957	>	kernel_data_exit();
958
959		// Delete Low Memory area
960		if (lm_area_mapped)
961	<	munmap((char *)0x0000, 0x3000);
961	>	vm_mac_release(0, 0x3000);
962
963		// Close /dev/zero
964		if (zero_fd > 0)
#	Line 1211 \| Line 986 \| static void Quit(void)
986
987
988		/*
989	+	* Initialize Kernel Data segments
990	+	*/
991	+
992	+	#if defined(__CYGWIN__)
993	+	#define WIN32_LEAN_AND_MEAN
994	+	#include <windows.h>
995	+
996	+	static HANDLE kernel_handle; // Shared memory handle for Kernel Data
997	+	static DWORD allocation_granule; // Minimum size of allocateable are (64K)
998	+	static DWORD kernel_area_size; // Size of Kernel Data area
999	+	#endif
1000	+
1001	+	static bool kernel_data_init(void)
1002	+	{
1003	+	char str[256];
1004	+	#ifdef _WIN32
1005	+	SYSTEM_INFO si;
1006	+	GetSystemInfo(&si);
1007	+	allocation_granule = si.dwAllocationGranularity;
1008	+	kernel_area_size = (KERNEL_AREA_SIZE + allocation_granule - 1) & -allocation_granule;
1009	+
1010	+	char rcs[10];
1011	+	LPVOID kernel_addr;
1012	+	kernel_handle = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, kernel_area_size, NULL);
1013	+	if (kernel_handle == NULL) {
1014	+	sprintf(rcs, "%d", GetLastError());
1015	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), rcs);
1016	+	ErrorAlert(str);
1017	+	return false;
1018	+	}
1019	+	kernel_addr = (LPVOID)Mac2HostAddr(KERNEL_DATA_BASE & -allocation_granule);
1020	+	if (MapViewOfFileEx(kernel_handle, FILE_MAP_READ \| FILE_MAP_WRITE, 0, 0, kernel_area_size, kernel_addr) != kernel_addr) {
1021	+	sprintf(rcs, "%d", GetLastError());
1022	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), rcs);
1023	+	ErrorAlert(str);
1024	+	return false;
1025	+	}
1026	+	kernel_addr = (LPVOID)Mac2HostAddr(KERNEL_DATA2_BASE & -allocation_granule);
1027	+	if (MapViewOfFileEx(kernel_handle, FILE_MAP_READ \| FILE_MAP_WRITE, 0, 0, kernel_area_size, kernel_addr) != kernel_addr) {
1028	+	sprintf(rcs, "%d", GetLastError());
1029	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), rcs);
1030	+	ErrorAlert(str);
1031	+	return false;
1032	+	}
1033	+	#else
1034	+	kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
1035	+	if (kernel_area == -1) {
1036	+	sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
1037	+	ErrorAlert(str);
1038	+	return false;
1039	+	}
1040	+	if (shmat(kernel_area, Mac2HostAddr(KERNEL_DATA_BASE), 0) < 0) {
1041	+	sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
1042	+	ErrorAlert(str);
1043	+	return false;
1044	+	}
1045	+	if (shmat(kernel_area, Mac2HostAddr(KERNEL_DATA2_BASE), 0) < 0) {
1046	+	sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
1047	+	ErrorAlert(str);
1048	+	return false;
1049	+	}
1050	+	#endif
1051	+	return true;
1052	+	}
1053	+
1054	+
1055	+	/*
1056	+	* Deallocate Kernel Data segments
1057	+	*/
1058	+
1059	+	static void kernel_data_exit(void)
1060	+	{
1061	+	#ifdef _WIN32
1062	+	if (kernel_handle) {
1063	+	UnmapViewOfFile(Mac2HostAddr(KERNEL_DATA_BASE & -allocation_granule));
1064	+	UnmapViewOfFile(Mac2HostAddr(KERNEL_DATA2_BASE & -allocation_granule));
1065	+	CloseHandle(kernel_handle);
1066	+	}
1067	+	#else
1068	+	if (kernel_area >= 0) {
1069	+	shmdt(Mac2HostAddr(KERNEL_DATA_BASE));
1070	+	shmdt(Mac2HostAddr(KERNEL_DATA2_BASE));
1071	+	shmctl(kernel_area, IPC_RMID, NULL);
1072	+	}
1073	+	#endif
1074	+	}
1075	+
1076	+
1077	+	/*
1078		* Jump into Mac ROM, start 680x0 emulator
1079		*/
1080
#	Line 1297 \| Line 1161 \| void QuitEmulator(void)
1161
1162
1163		/*
1300	–	* Pause/resume emulator
1301	–	*/
1302	–
1303	–	void PauseEmulator(void)
1304	–	{
1305	–	pthread_kill(emul_thread, SIGSTOP);
1306	–	}
1307	–
1308	–	void ResumeEmulator(void)
1309	–	{
1310	–	pthread_kill(emul_thread, SIGCONT);
1311	–	}
1312	–
1313	–
1314	–	/*
1164		* Dump 68k registers
1165		*/
1166
#	Line 1339 \| Line 1188 \| *void Dump68kRegs(M68kRegisters r)**
1188		* Make code executable
1189		*/
1190
1191	<	void MakeExecutable(int dummy, void *start, uint32 length)
1191	>	void MakeExecutable(int dummy, uint32 start, uint32 length)
1192		{
1193	<	if (((uintptr)start >= ROM_BASE) && ((uintptr)start < (ROM_BASE + ROM_SIZE)))
1193	>	if ((start >= ROM_BASE) && (start < (ROM_BASE + ROM_SIZE)))
1194		return;
1195		#if EMULATED_PPC
1196	<	FlushCodeCache((uintptr)start, (uintptr)start + length);
1196	>	FlushCodeCache(start, start + length);
1197		#else
1198	<	flush_icache_range(start, (void *)((uintptr)start + length));
1198	>	flush_icache_range(start, start + length);
1199		#endif
1200		}
1201
1202
1203		/*
1355	–	* Patch things after system startup (gets called by disk driver accRun routine)
1356	–	*/
1357	–
1358	–	void PatchAfterStartup(void)
1359	–	{
1360	–	ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL);
1361	–	InstallExtFS();
1362	–	}
1363	–
1364	–
1365	–	/*
1204		* NVRAM watchdog thread (saves NVRAM every minute)
1205		*/
1206
#	Line 1465 \| Line 1303 \| *static void tick_func(void arg)*
1303		}
1304
1305		uint64 end = GetTicks_usec();
1306	<	D(bug("%Ld ticks in %Ld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1306	>	D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
1307		return NULL;
1308		}
1309
#	Line 1515 \| Line 1353 \| struct B2_mutex {
1353		pthread_mutexattr_init(&attr);
1354		// Initialize the mutex for priority inheritance --
1355		// required for accurate timing.
1356	<	#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL
1356	>	#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
1357		pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
1358		#endif
1359		#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
#	Line 1589 \| Line 1427 \| *void B2_delete_mutex(B2_mutex mutex)**
1427		#if !EMULATED_PPC
1428		void TriggerInterrupt(void)
1429		{
1430	<	if (ready_for_signals)
1430	>	if (ready_for_signals) {
1431	>	idle_resume();
1432		pthread_kill(emul_thread, SIGUSR2);
1433	+	}
1434		}
1435		#endif
1436
#	Line 1645 \| Line 1485 \| void EnableInterrupt(void)
1485		*/
1486
1487		#if !EMULATED_PPC
1488	<	static void sigusr2_handler(int sig, siginfo_t sip, void scp)
1488	>	void sigusr2_handler(int sig, siginfo_t sip, void scp)
1489		{
1490		machine_regs *r = MACHINE_REGISTERS(scp);
1491
1492	+	#ifdef SYSTEM_CLOBBERS_R2
1493	+	// Restore pointer to Thread Local Storage
1494	+	set_r2(TOC);
1495	+	#endif
1496	+	#ifdef SYSTEM_CLOBBERS_R13
1497	+	// Restore pointer to .sdata section
1498	+	set_r13(R13);
1499	+	#endif
1500	+
1501		#ifdef USE_SDL_VIDEO
1502		// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
1503		SDL_PumpEvents();
#	Line 1674 \| Line 1523 \| static void sigusr2_handler(int sig, sig
1523		// 68k emulator inactive, in nanokernel?
1524		if (r->gpr(1) != KernelDataAddr) {
1525
1526	<	// Set extra stack for nested interrupts
1527	<	sig_stack_acquire();
1526	>	// Set extra stack for SIGSEGV handler
1527	>	sigaltstack(&extra_stack, NULL);
1528
1529		// Prepare for 68k interrupt level 1
1530		WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
#	Line 1688 \| Line 1537 \| static void sigusr2_handler(int sig, sig
1537		else
1538		ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
1539
1540	<	// Reset normal signal stack
1541	<	sig_stack_release();
1540	>	// Reset normal stack
1541	>	sigaltstack(&sig_stack, NULL);
1542		}
1543		break;
1544		#endif
#	Line 1700 \| Line 1549 \| static void sigusr2_handler(int sig, sig
1549		if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
1550
1551		// Set extra stack for SIGSEGV handler
1552	<	sig_stack_acquire();
1552	>	sigaltstack(&extra_stack, NULL);
1553		#if 1
1554		// Execute full 68k interrupt routine
1555		M68kRegisters r;
#	Line 1726 \| Line 1575 \| static void sigusr2_handler(int sig, sig
1575		}
1576		}
1577		#endif
1578	<	// Reset normal signal stack
1579	<	sig_stack_release();
1578	>	// Reset normal stack
1579	>	sigaltstack(&sig_stack, NULL);
1580		}
1581		break;
1582		#endif
#	Line 1748 \| Line 1597 \| static void sigsegv_handler(int sig, sig
1597		// Get effective address
1598		uint32 addr = r->dar();
1599
1600	+	#ifdef SYSTEM_CLOBBERS_R2
1601	+	// Restore pointer to Thread Local Storage
1602	+	set_r2(TOC);
1603	+	#endif
1604	+	#ifdef SYSTEM_CLOBBERS_R13
1605	+	// Restore pointer to .sdata section
1606	+	set_r13(R13);
1607	+	#endif
1608	+
1609		#if ENABLE_VOSF
1610		// Handle screen fault.
1611		extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
#	Line 1997 \| Line 1855 \| static void sigill_handler(int sig, sigi
1855		machine_regs *r = MACHINE_REGISTERS(scp);
1856		char str[256];
1857
1858	+	#ifdef SYSTEM_CLOBBERS_R2
1859	+	// Restore pointer to Thread Local Storage
1860	+	set_r2(TOC);
1861	+	#endif
1862	+	#ifdef SYSTEM_CLOBBERS_R13
1863	+	// Restore pointer to .sdata section
1864	+	set_r13(R13);
1865	+	#endif
1866	+
1867		// Fault in Mac ROM or RAM?
1868		bool mac_fault = (r->pc() >= ROM_BASE) && (r->pc() < (ROM_BASE + ROM_AREA_SIZE)) \|\| (r->pc() >= RAMBase) && (r->pc() < (RAMBase + RAMSize));
1869		if (mac_fault) {
#	Line 2165 \| Line 2032 \| bool SheepMem::Init(void)
2032		page_size = getpagesize();
2033
2034		// Allocate SheepShaver globals
2035	<	if (vm_acquire_fixed((char *)base, size) < 0)
2035	>	proc = base;
2036	>	if (vm_mac_acquire(base, size) < 0)
2037		return false;
2038
2039	<	// Allocate page with all bits set to 0
2040	<	zero_page = base + size;
2041	<	if (vm_acquire_fixed((char *)zero_page, page_size) < 0)
2042	<	return false;
2043	<	memset((char *)zero_page, 0, page_size);
2176	<	if (vm_protect((char *)zero_page, page_size, VM_PAGE_READ) < 0)
2039	>	// Allocate page with all bits set to 0, right in the middle
2040	>	// This is also used to catch undesired overlaps between proc and data areas
2041	>	zero_page = proc + (size / 2);
2042	>	Mac_memset(zero_page, 0, page_size);
2043	>	if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0)
2044		return false;
2045
2046		#if EMULATED_PPC
2047		// Allocate alternate stack for PowerPC interrupt routine
2048	<	sig_stack = zero_page + page_size;
2049	<	if (vm_acquire_fixed((char *)sig_stack, SIG_STACK_SIZE) < 0)
2048	>	sig_stack = base + size;
2049	>	if (vm_mac_acquire(sig_stack, SIG_STACK_SIZE) < 0)
2050		return false;
2051		#endif
2052
2053	<	top = base + size;
2053	>	data = base + size;
2054		return true;
2055		}
2056
2057		void SheepMem::Exit(void)
2058		{
2059	<	if (top) {
2059	>	if (data) {
2060		// Delete SheepShaver globals
2061	<	vm_release((void *)base, size);
2195	<
2196	<	// Delete zero page
2197	<	vm_release((void *)zero_page, page_size);
2061	>	vm_mac_release(base, size);
2062
2063		#if EMULATED_PPC
2064		// Delete alternate stack for PowerPC interrupt routine
2065	<	vm_release((void *)sig_stack, SIG_STACK_SIZE);
2065	>	vm_mac_release(sig_stack, SIG_STACK_SIZE);
2066		#endif
2067		}
2068		}

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Comparing SheepShaver/src/Unix/main_unix.cpp (file contents): Revision 1.48 by gbeauche, 2004-07-04T05:19:44Z vs. Revision 1.70 by gbeauche, 2005-07-06T04:58:34Z

Diff Legend

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.48 by gbeauche, 2004-07-04T05:19:44Z vs.
Revision 1.70 by gbeauche, 2005-07-06T04:58:34Z