Atmosphere/stratosphere/loader/source/ldr_main.cpp
2021-01-28 00:15:24 -08:00

222 lines
6.4 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
#include "ldr_development_manager.hpp"
#include "ldr_loader_service.hpp"
extern "C" {
extern u32 __start__;
u32 __nx_applet_type = AppletType_None;
u32 __nx_fs_num_sessions = 1;
#define INNER_HEAP_SIZE 0x0
size_t nx_inner_heap_size = INNER_HEAP_SIZE;
char nx_inner_heap[INNER_HEAP_SIZE];
void __libnx_initheap(void);
void __appInit(void);
void __appExit(void);
/* Exception handling. */
alignas(16) u8 __nx_exception_stack[ams::os::MemoryPageSize];
u64 __nx_exception_stack_size = sizeof(__nx_exception_stack);
void __libnx_exception_handler(ThreadExceptionDump *ctx);
void *__libnx_alloc(size_t size);
void *__libnx_aligned_alloc(size_t alignment, size_t size);
void __libnx_free(void *mem);
}
namespace ams {
ncm::ProgramId CurrentProgramId = ncm::SystemProgramId::Loader;
}
using namespace ams;
void __libnx_exception_handler(ThreadExceptionDump *ctx) {
ams::CrashHandler(ctx);
}
namespace ams::ldr {
namespace {
constinit u8 g_heap_memory[16_KB];
lmem::HeapHandle g_server_heap_handle;
constinit ams::sf::ExpHeapAllocator g_server_allocator;
void *Allocate(size_t size) {
return lmem::AllocateFromExpHeap(g_server_heap_handle, size);
}
void Deallocate(void *p, size_t size) {
return lmem::FreeToExpHeap(g_server_heap_handle, p);
}
void InitializeHeap() {
g_server_heap_handle = lmem::CreateExpHeap(g_heap_memory, sizeof(g_heap_memory), lmem::CreateOption_None);
g_server_allocator.Attach(g_server_heap_handle);
}
}
namespace {
struct ServerOptions {
static constexpr size_t PointerBufferSize = 0x400;
static constexpr size_t MaxDomains = 0;
static constexpr size_t MaxDomainObjects = 0;
};
/* ldr:pm, ldr:shel, ldr:dmnt. */
enum PortIndex {
PortIndex_ProcessManager,
PortIndex_Shell,
PortIndex_DebugMonitor,
PortIndex_Count,
};
constexpr sm::ServiceName ProcessManagerServiceName = sm::ServiceName::Encode("ldr:pm");
constexpr size_t ProcessManagerMaxSessions = 1;
constexpr sm::ServiceName ShellServiceName = sm::ServiceName::Encode("ldr:shel");
constexpr size_t ShellMaxSessions = 3;
constexpr sm::ServiceName DebugMonitorServiceName = sm::ServiceName::Encode("ldr:dmnt");
constexpr size_t DebugMonitorMaxSessions = 3;
constinit sf::UnmanagedServiceObject<impl::IProcessManagerInterface, LoaderService> g_pm_service;
constinit sf::UnmanagedServiceObject<impl::IShellInterface, LoaderService> g_shell_service;
constinit sf::UnmanagedServiceObject<impl::IDebugMonitorInterface, LoaderService> g_dmnt_service;
constexpr size_t MaxSessions = ProcessManagerMaxSessions + ShellMaxSessions + DebugMonitorMaxSessions + 1;
using ServerManager = ams::sf::hipc::ServerManager<PortIndex_Count, ServerOptions, MaxSessions>;
ServerManager g_server_manager;
void RegisterServiceSessions() {
R_ABORT_UNLESS(g_server_manager.RegisterObjectForServer(g_pm_service.GetShared(), ProcessManagerServiceName, ProcessManagerMaxSessions));
R_ABORT_UNLESS(g_server_manager.RegisterObjectForServer(g_shell_service.GetShared(), ShellServiceName, ShellMaxSessions));
R_ABORT_UNLESS(g_server_manager.RegisterObjectForServer(g_dmnt_service.GetShared(), DebugMonitorServiceName, DebugMonitorMaxSessions));
}
void LoopProcess() {
g_server_manager.LoopProcess();
}
}
}
void __libnx_initheap(void) {
void* addr = nx_inner_heap;
size_t size = nx_inner_heap_size;
/* Newlib */
extern char* fake_heap_start;
extern char* fake_heap_end;
fake_heap_start = (char*)addr;
fake_heap_end = (char*)addr + size;
ams::ldr::InitializeHeap();
}
void __appInit(void) {
hos::InitializeForStratosphere();
fs::SetAllocator(ldr::Allocate, ldr::Deallocate);
/* Initialize services we need. */
sm::DoWithSession([&]() {
R_ABORT_UNLESS(fsInitialize());
lr::Initialize();
R_ABORT_UNLESS(fsldrInitialize());
spl::Initialize();
});
ams::CheckApiVersion();
}
void __appExit(void) {
/* Cleanup services. */
spl::Finalize();
fsldrExit();
lr::Finalize();
fsExit();
}
namespace ams {
void *Malloc(size_t size) {
AMS_ABORT("ams::Malloc was called");
}
void Free(void *ptr) {
AMS_ABORT("ams::Free was called");
}
}
void *operator new(size_t size) {
return ldr::Allocate(size);
}
void operator delete(void *p) {
return ldr::Deallocate(p, 0);
}
void *__libnx_alloc(size_t size) {
AMS_ABORT("__libnx_alloc was called");
}
void *__libnx_aligned_alloc(size_t alignment, size_t size) {
AMS_ABORT("__libnx_aligned_alloc was called");
}
void __libnx_free(void *mem) {
AMS_ABORT("__libnx_free was called");
}
int main(int argc, char **argv)
{
/* Disable auto-abort in fs operations. */
fs::SetEnabledAutoAbort(false);
/* Set thread name. */
os::SetThreadNamePointer(os::GetCurrentThread(), AMS_GET_SYSTEM_THREAD_NAME(ldr, Main));
AMS_ASSERT(os::GetThreadPriority(os::GetCurrentThread()) == AMS_GET_SYSTEM_THREAD_PRIORITY(ldr, Main));
/* Configure development. */
/* NOTE: Nintendo really does call the getter function three times instead of caching the value. */
ldr::SetDevelopmentForAcidProductionCheck(spl::IsDevelopment());
ldr::SetDevelopmentForAntiDowngradeCheck(spl::IsDevelopment());
ldr::SetDevelopmentForAcidSignatureCheck(spl::IsDevelopment());
/* Register the loader services. */
ldr::RegisterServiceSessions();
/* Loop forever, servicing our services. */
ldr::LoopProcess();
return 0;
}