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

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.14 by gbeauche, 2003-11-10T16:05:52Z vs.
Revision 1.22 by gbeauche, 2004-01-04T05:45:50Z

#	Line 109 \| Line 109
109		#include "user_strings.h"
110		#include "vm_alloc.h"
111		#include "sigsegv.h"
112	+	#include "thunks.h"
113
114		#define DEBUG 0
115		#include "debug.h"
#	Line 145 \| Line 146
146		const char ROM_FILE_NAME[] = "ROM";
147		const char ROM_FILE_NAME2[] = "Mac OS ROM";
148
149	<	const uint32 RAM_BASE = 0x20000000; // Base address of RAM
149	>	const uintptr RAM_BASE = 0x20000000; // Base address of RAM
150		const uint32 SIG_STACK_SIZE = 0x10000; // Size of signal stack
151
152
#	Line 172 \| Line 173 \| *void TOC; // Small data pointer (r13**
173		#endif
174		uint32 RAMBase; // Base address of Mac RAM
175		uint32 RAMSize; // Size of Mac RAM
175	–	uint32 SheepStack1Base; // SheepShaver first alternate stack base
176	–	uint32 SheepStack2Base; // SheepShaver second alternate stack base
177	–	uint32 SheepThunksBase; // SheepShaver thunks base
176		uint32 KernelDataAddr; // Address of Kernel Data
177		uint32 BootGlobsAddr; // Address of BootGlobs structure at top of Mac RAM
178		uint32 PVR; // Theoretical PVR
#	Line 185 \| Line 183 \| int64 BusClockSpeed; // Bus clock speed
183		// Global variables
184		char *x_display_name = NULL; // X11 display name
185		Display *x_display = NULL; // X11 display handle
186	+	#ifdef X11_LOCK_TYPE
187	+	X11_LOCK_TYPE x_display_lock = X11_LOCK_INIT; // X11 display lock
188	+	#endif
189
190		static int zero_fd = 0; // FD of /dev/zero
190	–	static bool sheep_area_mapped = false; // Flag: SheepShaver data area mmap()ed
191		static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped
192		static int kernel_area = -1; // SHM ID of Kernel Data area
193		static bool rom_area_mapped = false; // Flag: Mac ROM mmap()ped
#	Line 207 \| Line 207 \| static bool ready_for_signals = false;
207		static int64 num_segv = 0; // Number of handled SEGV signals
208
209		static struct sigaction sigusr2_action; // Interrupt signal (of emulator thread)
210	<	#if !EMULATED_PPC
210	>	#if EMULATED_PPC
211	>	static uintptr sig_stack = 0; // Stack for PowerPC interrupt routine
212	>	#else
213		static struct sigaction sigsegv_action; // Data access exception signal (of emulator thread)
214		static struct sigaction sigill_action; // Illegal instruction signal (of emulator thread)
215		static void *sig_stack = NULL; // Stack for signal handlers
#	Line 216 \| Line 218 \| static bool emul_thread_fatal = false;
218		static sigregs sigsegv_regs; // Register dump when crashed
219		#endif
220
221	+	uintptr SheepMem::zero_page = 0; // Address of ro page filled in with zeros
222	+	uintptr SheepMem::base = 0x60000000; // Address of SheepShaver data
223	+	uintptr SheepMem::top = 0; // Top of SheepShaver data (stack like storage)
224	+
225
226		// Prototypes
227		static void Quit(void);
#	Line 252 \| Line 258 \| extern void paranoia_check(void);
258
259		#if EMULATED_PPC
260		/*
261	+	* Return signal stack base
262	+	*/
263	+
264	+	uintptr SignalStackBase(void)
265	+	{
266	+	return sig_stack + SIG_STACK_SIZE;
267	+	}
268	+
269	+
270	+	/*
271		* Atomic operations
272		*/
273
#	Line 470 \| Line 486 \| int main(int argc, char argv)**
486		ErrorAlert(str);
487		goto quit;
488		}
489	<	kernel_data = (KernelData *)0x68ffe000;
489	>	kernel_data = (KernelData *)KERNEL_DATA_BASE;
490		emulator_data = &kernel_data->ed;
491	<	KernelDataAddr = (uint32)kernel_data;
491	>	KernelDataAddr = KERNEL_DATA_BASE;
492		D(bug("Kernel Data at %p, Emulator Data at %p\n", kernel_data, emulator_data));
493
494		// Create area for SheepShaver data
495	<	if (vm_acquire_fixed((char *)SHEEP_BASE, SHEEP_SIZE) < 0) {
495	>	if (!SheepMem::Init()) {
496		sprintf(str, GetString(STR_SHEEP_MEM_MMAP_ERR), strerror(errno));
497		ErrorAlert(str);
498		goto quit;
499		}
484	–	SheepStack1Base = SHEEP_BASE + 0x10000;
485	–	SheepStack2Base = SheepStack1Base + 0x10000;
486	–	SheepThunksBase = SheepStack2Base + 0x1000;
487	–	sheep_area_mapped = true;
500
501		// Create area for Mac ROM
502		if (vm_acquire_fixed((char *)ROM_BASE, ROM_AREA_SIZE) < 0) {
#	Line 579 \| Line 591 \| int main(int argc, char argv)**
591		boot_globs[1] = htonl(RAMSize);
592		boot_globs[2] = htonl((uint32)-1); // End of bank table
593
594	+	// Init thunks
595	+	if (!ThunksInit())
596	+	goto quit;
597	+
598		// Init drivers
599		SonyInit();
600		DiskInit();
#	Line 588 \| Line 604 \| int main(int argc, char argv)**
604		// Init external file system
605		ExtFSInit();
606
607	+	// Init ADB
608	+	ADBInit();
609	+
610		// Init audio
611		AudioInit();
612
#	Line 622 \| Line 641 \| int main(int argc, char argv)**
641		// Initialize Kernel Data
642		memset(kernel_data, 0, sizeof(KernelData));
643		if (ROMType == ROMTYPE_NEWWORLD) {
644	<	static uint32 of_dev_tree[4] = {0, 0, 0, 0};
645	<	static uint8 vector_lookup_tbl[128];
646	<	static uint8 vector_mask_tbl[64];
644	>	uintptr of_dev_tree = SheepMem::Reserve(4 * sizeof(uint32));
645	>	memset((void )of_dev_tree, 0, 4 sizeof(uint32));
646	>	uintptr vector_lookup_tbl = SheepMem::Reserve(128);
647	>	uintptr vector_mask_tbl = SheepMem::Reserve(64);
648		memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
649	<	memset(vector_lookup_tbl, 0, 128);
650	<	memset(vector_mask_tbl, 0, 64);
649	>	memset((void *)vector_lookup_tbl, 0, 128);
650	>	memset((void *)vector_mask_tbl, 0, 64);
651		kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
652	<	kernel_data->v[0xb84 >> 2] = htonl((uint32)of_dev_tree); // OF device tree base
653	<	kernel_data->v[0xb90 >> 2] = htonl((uint32)vector_lookup_tbl);
654	<	kernel_data->v[0xb94 >> 2] = htonl((uint32)vector_mask_tbl);
652	>	kernel_data->v[0xb84 >> 2] = htonl(of_dev_tree); // OF device tree base
653	>	kernel_data->v[0xb90 >> 2] = htonl(vector_lookup_tbl);
654	>	kernel_data->v[0xb94 >> 2] = htonl(vector_mask_tbl);
655		kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE); // OpenPIC base
656		kernel_data->v[0xbb0 >> 2] = htonl(0); // ADB base
657		kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
#	Line 667 \| Line 687 \| int main(int argc, char argv)**
687		D(bug("Initializing Low Memory...\n"));
688		memset(NULL, 0, 0x3000);
689		WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h')); // Signature to detect SheepShaver
690	<	WriteMacInt32(XLM_KERNEL_DATA, (uint32)kernel_data); // For trap replacement routines
690	>	WriteMacInt32(XLM_KERNEL_DATA, KernelDataAddr); // For trap replacement routines
691		WriteMacInt32(XLM_PVR, PVR); // Theoretical PVR
692		WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed); // For DriverServicesLib patch
693		WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN); // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
694	<	#if EMULATED_PPC
695	<	WriteMacInt32(XLM_ETHER_INIT, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_INIT));
696	<	WriteMacInt32(XLM_ETHER_TERM, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_TERM));
677	<	WriteMacInt32(XLM_ETHER_OPEN, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_OPEN));
678	<	WriteMacInt32(XLM_ETHER_CLOSE, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_CLOSE));
679	<	WriteMacInt32(XLM_ETHER_WPUT, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_WPUT));
680	<	WriteMacInt32(XLM_ETHER_RSRV, POWERPC_NATIVE_OP_FUNC(NATIVE_ETHER_RSRV));
681	<	WriteMacInt32(XLM_VIDEO_DOIO, POWERPC_NATIVE_OP_FUNC(NATIVE_VIDEO_DO_DRIVER_IO));
682	<	#else
683	<	WriteMacInt32(XLM_TOC, (uint32)TOC); // TOC pointer of emulator
684	<	WriteMacInt32(XLM_ETHER_INIT, (uint32)InitStreamModule); // DLPI ethernet driver functions
685	<	WriteMacInt32(XLM_ETHER_TERM, (uint32)TerminateStreamModule);
686	<	WriteMacInt32(XLM_ETHER_OPEN, (uint32)ether_open);
687	<	WriteMacInt32(XLM_ETHER_CLOSE, (uint32)ether_close);
688	<	WriteMacInt32(XLM_ETHER_WPUT, (uint32)ether_wput);
689	<	WriteMacInt32(XLM_ETHER_RSRV, (uint32)ether_rsrv);
690	<	WriteMacInt32(XLM_VIDEO_DOIO, (uint32)VideoDoDriverIO);
694	>	WriteMacInt32(XLM_ZERO_PAGE, SheepMem::ZeroPage()); // Pointer to read-only page with all bits set to 0
695	>	#if !EMULATED_PPC
696	>	WriteMacInt32(XLM_TOC, (uint32)TOC); // TOC pointer of emulator
697		#endif
698	+	WriteMacInt32(XLM_ETHER_INIT, NativeFunction(NATIVE_ETHER_INIT)); // DLPI ethernet driver functions
699	+	WriteMacInt32(XLM_ETHER_TERM, NativeFunction(NATIVE_ETHER_TERM));
700	+	WriteMacInt32(XLM_ETHER_OPEN, NativeFunction(NATIVE_ETHER_OPEN));
701	+	WriteMacInt32(XLM_ETHER_CLOSE, NativeFunction(NATIVE_ETHER_CLOSE));
702	+	WriteMacInt32(XLM_ETHER_WPUT, NativeFunction(NATIVE_ETHER_WPUT));
703	+	WriteMacInt32(XLM_ETHER_RSRV, NativeFunction(NATIVE_ETHER_RSRV));
704	+	WriteMacInt32(XLM_VIDEO_DOIO, NativeFunction(NATIVE_VIDEO_DO_DRIVER_IO));
705		D(bug("Low Memory initialized\n"));
706
707		// Start 60Hz thread
#	Line 831 \| Line 844 \| static void Quit(void)
844		// Exit audio
845		AudioExit();
846
847	+	// Exit ADB
848	+	ADBExit();
849	+
850		// Exit video
851		VideoExit();
852
#	Line 843 \| Line 859 \| static void Quit(void)
859		DiskExit();
860		SonyExit();
861
862	+	// Delete SheepShaver globals
863	+	SheepMem::Exit();
864	+
865		// Delete RAM area
866		if (ram_area_mapped)
867		vm_release((char *)RAM_BASE, RAMSize);
#	Line 954 \| Line 973 \| void Execute68kTrap(uint16 trap, M68kReg
973		uint16 proc[2] = {trap, M68K_RTS};
974		Execute68k((uint32)proc, r);
975		}
957	–
958	–
959	–	/*
960	–	* Execute PPC code from EMUL_OP routine (real mode switch)
961	–	*/
962	–
963	–	void ExecutePPC(void (*func)())
964	–	{
965	–	uint32 tvect[2] = {(uint32)func, 0}; // Fake TVECT
966	–	RoutineDescriptor desc = BUILD_PPC_ROUTINE_DESCRIPTOR(0, tvect);
967	–	M68kRegisters r;
968	–	Execute68k((uint32)&desc, &r);
969	–	}
976		#endif
977
978
#	Line 1045 \| Line 1051 \| *void MakeExecutable(int dummy, void sta**
1051
1052		void PatchAfterStartup(void)
1053		{
1048	–	#if EMULATED_PPC
1054		ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL);
1050	–	#else
1051	–	ExecutePPC(VideoInstallAccel);
1052	–	#endif
1055		InstallExtFS();
1056		}
1057
#	Line 1390 \| Line 1392 \| static void sigusr2_handler(int sig, sig
1392		if (InterruptFlags & INTFLAG_VIA) {
1393		ClearInterruptFlag(INTFLAG_VIA);
1394		ADBInterrupt();
1395	<	ExecutePPC(VideoVBL);
1395	>	ExecuteNative(NATIVE_VIDEO_VBL);
1396		}
1397		}
1398		#endif
#	Line 1787 \| Line 1789 \| rti:;
1789
1790
1791		/*
1792	+	* Helpers to share 32-bit addressable data with MacOS
1793	+	*/
1794	+
1795	+	bool SheepMem::Init(void)
1796	+	{
1797	+	const int page_size = getpagesize();
1798	+
1799	+	// Allocate SheepShaver globals
1800	+	if (vm_acquire_fixed((char *)base, size) < 0)
1801	+	return false;
1802	+
1803	+	// Allocate page with all bits set to 0
1804	+	zero_page = base + size;
1805	+	if (vm_acquire_fixed((char *)zero_page, page_size) < 0)
1806	+	return false;
1807	+	memset((char *)zero_page, 0, page_size);
1808	+	if (vm_protect((char *)zero_page, page_size, VM_PAGE_READ) < 0)
1809	+	return false;
1810	+
1811	+	#if EMULATED_PPC
1812	+	// Allocate alternate stack for PowerPC interrupt routine
1813	+	sig_stack = zero_page + page_size;
1814	+	if (vm_acquire_fixed((char *)sig_stack, SIG_STACK_SIZE) < 0)
1815	+	return false;
1816	+	#endif
1817	+
1818	+	top = base + size;
1819	+	return true;
1820	+	}
1821	+
1822	+	void SheepMem::Exit(void)
1823	+	{
1824	+	if (top) {
1825	+	const int page_size = getpagesize();
1826	+
1827	+	// Delete SheepShaver globals
1828	+	vm_release((void *)base, size);
1829	+
1830	+	// Delete zero page
1831	+	vm_release((void *)zero_page, page_size);
1832	+
1833	+	#if EMULATED_PPC
1834	+	// Delete alternate stack for PowerPC interrupt routine
1835	+	vm_release((void *)sig_stack, SIG_STACK_SIZE);
1836	+	#endif
1837	+	}
1838	+	}
1839	+
1840	+
1841	+	/*
1842		* Display alert
1843		*/
1844

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Comparing SheepShaver/src/Unix/main_unix.cpp (file contents): Revision 1.14 by gbeauche, 2003-11-10T16:05:52Z vs. Revision 1.22 by gbeauche, 2004-01-04T05:45:50Z

Diff Legend

Comparing SheepShaver/src/Unix/main_unix.cpp (file contents):
Revision 1.14 by gbeauche, 2003-11-10T16:05:52Z vs.
Revision 1.22 by gbeauche, 2004-01-04T05:45:50Z