void freeDataPages(u32 address)
{
MemInfo minfo;
PageInfo pinfo;
Result ret = svc_queryMemory(&minfo, &pinfo, address);
if(!ret)
{
u32 tmp;
svc_controlMemory(&tmp, minfo.base_addr, 0x0, minfo.size, 0x1, 0x0);
}
}
void setupStub(u8* code_data)
{
// get .text info
MemInfo minfo;
PageInfo pinfo;
Result ret = svc_queryMemory(&minfo, &pinfo, 0x00100000);
print_str("text size "); print_hex((u32)minfo.size); print_str("\n");
print_str("text perm "); print_hex((u32)minfo.perm); print_str("\n");
memcpy(&code_data[minfo.size - HANS_STUB_OFFSET], stub_bin, stub_bin_size);
stub = (void*)(0x00100000 + minfo.size - HANS_STUB_OFFSET);
}
void run3dsx(Handle executable, u32* argbuf)
{
initSrv();
gspGpuInit();
// free extra data pages if any
freeDataPages(0x14000000);
freeDataPages(0x30000000);
// reset menu ropbin (in case of a crash)
{
u32 _argbuf = 0;
svc_controlMemory((u32*)&gspHeap, 0x0, 0x0, 0x01000000, 0x10003, 0x3);
patchMenuRop(1, &_argbuf, 4);
svc_controlMemory((u32*)&gspHeap, (u32)gspHeap, 0x0, 0x01000000, MEMOP_FREE, 0x0);
}
// duplicate service list on the stack
// also add hid:SPVR as hid:USER if appropriate
// (for backwards compat as old homebrew only supports hid:USER)
u8 serviceBuffer[0x4+0xC*(_serviceList.num + 1)];
service_list_t* serviceList = (service_list_t*)serviceBuffer;
serviceList->num = _serviceList.num;
int i;
for(i=0; i<_serviceList.num; i++)
{
memcpy(serviceList->services[i].name, _serviceList.services[i].name, 8);
svc_duplicateHandle(&serviceList->services[i].handle, _serviceList.services[i].handle);
}
// handle hid:USER missing case
{
Handle hidUSER = 0;
if(srv_getServiceHandle(NULL, &hidUSER, "hid:USER") && !srv_getServiceHandle(NULL, &hidUSER, "hid:SPVR"))
{
memcpy(serviceList->services[serviceList->num].name, "hid:USER", 8);
serviceList->services[serviceList->num].handle = hidUSER;
serviceList->num++;
}else svc_closeHandle(hidUSER);
}
vu32* targetProcessIndex = &_targetProcessIndex;
if(*targetProcessIndex == -2)
{
// create local copy of process map
u32 _customProcessBuffer[0x40];
memorymap_t* const _customProcessMap = (memorymap_t*)_customProcessBuffer;
memcpy(_customProcessBuffer, customProcessBuffer, sizeof(_customProcessBuffer));
// adjust it given the information we now have such as text size, data location and size...
MemInfo minfo;
PageInfo pinfo;
// get .text info
Result ret = svc_queryMemory(&minfo, &pinfo, 0x00100000);
_customProcessMap->header.text_end = minfo.size + 0x00100000;
// get rodata info
ret = svc_queryMemory(&minfo, &pinfo, _customProcessMap->header.text_end);
_customProcessMap->header.data_address = minfo.size + _customProcessMap->header.text_end;
// get data info
ret = svc_queryMemory(&minfo, &pinfo, _customProcessMap->header.data_address);
_customProcessMap->header.data_size = minfo.size;
// setup 3dsx with custom local map
setup3dsx(executable, (memorymap_t*)_customProcessMap, serviceList, argbuf);
}else setup3dsx(executable, (memorymap_t*)app_maps[*targetProcessIndex], serviceList, argbuf);
FSFILE_Close(executable);
gspGpuExit();
exitSrv();
// grab ns:s handle
Handle nssHandle = 0x0;
for(i=0; i<_serviceList.num; i++)if(!strcmp(_serviceList.services[i].name, "ns:s"))nssHandle=_serviceList.services[i].handle;
if(!nssHandle)*(vu32*)0xCAFE0001=0;
// use ns:s to launch/kill process and invalidate icache in the process
// Result ret = NSS_LaunchTitle(&nssHandle, 0x0004013000003702LL, 0x1);
Result ret = NSS_LaunchTitle(&nssHandle, 0x0004013000002A02LL, 0x1);
if(ret)*(u32*)0xCAFE0002=ret;
svc_sleepThread(100*1000*1000);
// ret = NSS_TerminateProcessTID(&nssHandle, 0x0004013000003702LL, 100*1000*1000);
ret = NSS_TerminateProcessTID(&nssHandle, 0x0004013000002A02LL, 100*1000*1000);
if(ret)*(u32*)0xCAFE0003=ret;
// invalidate_icache();
// free heap (has to be the very last thing before jumping to app as contains bss)
u32 out; svc_controlMemory(&out, (u32)_heap_base, 0x0, _heap_size, MEMOP_FREE, 0x0);
start_execution();
}
