示例#1
0
void PspSpeedTests::fastCopySpecificSize(byte *dst, byte *src, uint32 bytes) {
	uint32 time1, time2;
	uint32 fastcopyTime, memcpyTime;
	const int iterations = 2000;
	int intc;

	intc = pspSdkDisableInterrupts();

	time1 = PspRtc::instance().getMicros();
	for (int i=0; i<iterations; i++) {
		PspMemory::fastCopy(dst, src, bytes);
	}
	time2 = PspRtc::instance().getMicros();

	pspSdkEnableInterrupts(intc);

	fastcopyTime = time2-time1;

	intc = pspSdkDisableInterrupts();

	time1 = PspRtc::instance().getMicros();
	for (int i=0; i<iterations; i++) {
		memcpy(dst, src, bytes);
	}
	time2 = PspRtc::instance().getMicros();

	pspSdkEnableInterrupts(intc);

	memcpyTime = time2-time1;

	PSP_INFO_PRINT("%d bytes. memcpy[%d], fastcopy[%d]\n", bytes, memcpyTime, fastcopyTime);
}
示例#2
0
static u32 my_InterlockedExchange(u32 volatile *dst, u32 exchange)
{
	unsigned int flags = pspSdkDisableInterrupts();
	u32 origvalue = *dst;

	*dst = exchange;

	pspSdkEnableInterrupts(flags);
	return origvalue;
}
示例#3
0
文件: main.c 项目: yin8086/psplinkusb
int peekDebugChar(unsigned char *ch)
{
	int ret = 0;
	int intc;

	*ch = 0;
	intc = pspSdkDisableInterrupts();
	if(g_endp.size > 0)
	{
		*ch = g_endp.buffer[g_endp.read_pos];
		ret = 1;
	}
	pspSdkEnableInterrupts(intc);

	return ret;
}
示例#4
0
文件: main.c 项目: yin8086/psplinkusb
/* Patch out the exception handler setup call for apps which come after us ;P */
int psplinkPatchException(void)
{
	unsigned int *addr;
	int intc;

	intc = pspSdkDisableInterrupts();
	addr = libsFindExportAddrByNid(refer_module_by_name("sceExceptionManager", NULL), "ExceptionManagerForKernel", 0x565C0B0E);
	if(addr)
	{
		*addr = (unsigned int) RegisterExceptionDummy;
		sceKernelDcacheWritebackInvalidateRange(addr, 4);
		sceKernelIcacheInvalidateRange(addr, 4);
	}
	pspSdkEnableInterrupts(intc);

	return 0;
}
示例#5
0
/*------------------------------------------------------------------------------*/
void debug_printf( const char *arg, ... )
{
	char tmp[DEBUG_BUFF_SIZE];
	int intc = pspSdkDisableInterrupts();

	if ( debug_disp_flag != 0 ){
		debug_disp_flag = 0;
		sprintf( DebugData.buff, "0x%08x\n", sceDisplayGetVcount() );
	}
	va_list ap;
	va_start( ap, arg );
	vsprintf( tmp, arg, ap );
	if ( strlen(DebugData.buff) + strlen(tmp) < DEBUG_BUFF_SIZE ){
		strcat( DebugData.buff, tmp );
	}
	pspSdkEnableInterrupts( intc );
}
示例#6
0
文件: main.c 项目: 173210/psplink
static int add_char(unsigned char ch)
{
	int intc;
	int total;

	intc = pspSdkDisableInterrupts();
	if(g_total < KPRINTF_BUF_SIZE)
	{
		g_buf[g_writepos++] = ch;
		g_writepos %= KPRINTF_BUF_SIZE;
		g_total++;
	}
	total = g_total;
	pspSdkEnableInterrupts(intc);

	return total;
}
示例#7
0
文件: libs.c 项目: Falaina/psplinkusb
int libsPatchFunction(SceUID uid, const char *library, unsigned int nid, u16 retval)
{
	unsigned int* addr;
	int intc;
	int ret = 0;

	intc = pspSdkDisableInterrupts();
	addr = (unsigned int *) libsFindExportByNid(uid, library, nid);
	if(addr)
	{
		addr[0] = 0x03E00008;
		addr[1] = 0x24020000 | (unsigned int) retval;
		sceKernelDcacheWritebackInvalidateRange(addr, 8);
		sceKernelIcacheInvalidateRange(addr, 8);
		ret = 1;
	}
	pspSdkEnableInterrupts(intc);

	return ret;
}
示例#8
0
文件: main.c 项目: yin8086/psplinkusb
int main_thread(SceSize args, void *argp)
{
	struct PsplinkContext *ctx;
	int ret;
	SceUInt timeout;
	SceUID thids[20];
	int count;
	int intc;

	printf("PSPLink USB GDBServer (c) 2k7 TyRaNiD\n");
	if(!initialise(args, argp))
	{
		printf("Usage: usbgdb.prx program [args]\n");
		sceKernelExitDeleteThread(0);
	}

	if(usbAsyncRegister(ASYNC_GDB, &g_endp) < 0)
	{
		printf("Could not register GDB provider\n");
		sceKernelExitDeleteThread(0);
	}

	usbWaitForConnect();
	memset(&g_handler, 0, sizeof(g_handler));
	g_handler.size = sizeof(g_handler);
	g_handler.membase = g_context.info.text_addr;
	g_handler.memtop = g_context.info.text_addr + g_context.info.text_size;
	g_handler.mbox = sceKernelCreateMbx("GDBMbx", 0, NULL);
	if(g_handler.mbox < 0)
	{
		printf("Could not create message box\n");
		sceKernelExitDeleteThread(0);
	}

	if(debugRegisterEventHandler(&g_handler) < 0)
	{
		printf("Could not register event handler\n");
		sceKernelExitDeleteThread(0);
	}

	if(GdbHandleException(&g_context.ctx))
	{
		while(1)
		{
			timeout = GDB_POLL_TIMEOUT;
			ret = debugWaitDebugEvent(&g_handler, &ctx, &timeout);
			
			if(ret == 0)
			{
				DEBUG_PRINTF("ctx %p, epc 0x%08X\n", ctx, ctx->regs.epc);
				ret = GdbHandleException(ctx);
				sceKernelWakeupThread(ctx->thid);
				if(ret == 0)
				{
					break;
				}
			}
			else if(ret == SCE_KERNEL_ERROR_WAIT_TIMEOUT)
			{
				unsigned char ch;

				if(peekDebugChar(&ch) && (ch == 3))
				{
					DEBUG_PRINTF("Break Issued\n");
					intc = pspSdkDisableInterrupts();
					count = psplinkReferThreadsByModule(SCE_KERNEL_TMID_Thread, g_context.uid, thids, 20);
					if(count > 0)
					{
						/* We just break the first thread */
						/* Could in theory break on the thread which we are interested in ? */
						debugBreakThread(thids[0]);
					}
					pspSdkEnableInterrupts(intc);

					/* Should have a fallback if it just wont stop
						GdbHandleException(&g_context.ctx);
					*/
				}
				continue;
			}
			else
			{
				printf("Error waiting for debug event 0x%08X\n", ret);
				break;
			}
		}
	}

	debugUnregisterEventHandler(&g_handler);
	sceKernelExitDeleteThread(0);

	return 0;
}
示例#9
0
/* for 6.20/6.35 */
void do_exploit(void)
{
	u32 power_buf_address = 0;
	//create empty callback
	int cbid = -1;
	int result;

#ifdef CONFIG_635
	if(psp_fw_version == FW_635) {
		//create a fitting one
		while(!is_intr_OK((u32)cbid)) {
			//sceKernelDeleteCallback(cbid);
			cbid = sceKernelCreateCallback("", NULL, NULL);
		}
	} 
#endif

#ifdef CONFIG_620
	if (psp_fw_version == FW_620) {
		cbid = sceKernelCreateCallback("", NULL, NULL);
	}
#endif

	printk("Got a CBID: 0x%08X\r\n", cbid);

	//Davee $v1 trick, $v1 would leak the power_buf_address when called on an registered slot 0
	scePowerRegisterCallbackPrivate(0, cbid);
	power_buf_address = get_power_address(cbid);
	scePowerUnregisterCallbackPrivate(0);
	printk("power_buf_address 0x%08X\r\n", (uint)power_buf_address);

#ifdef CONFIG_635
	if(psp_fw_version == FW_635 && !is_pspgo()) {
		patch_power_arg(cbid, power_buf_address);
	}
#endif

	//override sysmem function
	unsigned int smpos = g_offs->patchRangeStart; for(; smpos < g_offs->patchRangeEnd; smpos += 16)
	{
		//calculate slot
		unsigned int slot = get_power_slot_by_address(((u32)0x88000000)+smpos, power_buf_address);

		//wipe memory with -1... else overriding fails.
		scePowerUnregisterCallbackPrivate(slot);

		//register dummy callback (override memory ^^)
		result = scePowerRegisterCallbackPrivate(slot, cbid);

		//patching error
		if(result) break;
	}

	//flush changes to memory
	sync_cache();

	//restoring instructions and patching loadexec
	unsigned int interrupts = pspSdkDisableInterrupts();

#ifdef CONFIG_635
	if(psp_fw_version == FW_635) {
		result = SysMemUserForUser_D8DE5C1E(0xC01DB15D, 0xC00DCAFE, kernelSyscall, 0x12345678, -1);
	}
#endif

#ifdef CONFIG_620
	if (psp_fw_version == FW_620) {
		u32 kernel_entry, entry_addr;

		kernel_entry = (u32) &kernel_permission_call;
		entry_addr = ((u32) &kernel_entry) - 16;
		result = sceKernelPowerLock(0, ((u32) &entry_addr) - 0x4234);
	}
#endif

	pspSdkEnableInterrupts(interrupts);
}
示例#10
0
文件: main.c 项目: 173210/psplink
int main_thread(SceSize args, void *argp)
{
	int ret;
	int intc;
	unsigned char *plow, *phigh;
	int low, high;

	memset(g_buf, 0, KPRINTF_BUF_SIZE);
	g_writepos = 0;
	g_readpos = 0;
	g_total = 0;
	plow = NULL;
	phigh = NULL;

	g_eventflag = sceKernelCreateEventFlag("UsbKprintfEvent", 0, 0, 0);
	if(g_eventflag < 0)
	{
		printf("Error creating event flag %08X\n", g_eventflag);
	}

	sceKernelRegisterDebugPutchar(PutCharDebug);

	while(1)
	{
		ret = sceKernelWaitEventFlag(g_eventflag, KPRINTF_EVENT, 0x21, 0, 0);
		if(ret < 0)
		{
			sceKernelExitDeleteThread(0);
		}

		low = 0;
		high = 0;

		intc = pspSdkDisableInterrupts();
		if(g_total > 0)
		{
			plow = &g_buf[g_readpos];
			low = (KPRINTF_BUF_SIZE - g_readpos) < g_total ? (KPRINTF_BUF_SIZE - g_readpos) : g_total ;
			if(low < g_total)
			{
				phigh = g_buf;
				high = g_total - low;
			}
		}
		pspSdkEnableInterrupts(intc);

		if((low != 0) && (high == 0))
		{
			printf("%.*s", low, plow);
		}
		else if((low != 0) && (high != 0))
		{
			printf("%.*s%.*s", low, plow, high, phigh);
		}

		intc = pspSdkDisableInterrupts();
		g_total -= (low+high);
		g_readpos += (low+high);
		g_readpos %= KPRINTF_BUF_SIZE;
		pspSdkEnableInterrupts(intc);
	}

	return 0;
}