Atmosphere/stratosphere/dmnt.gen2/source/dmnt2_gdb_server.cpp

90 lines
3.4 KiB
C++

/*
* Copyright (c) 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 "dmnt2_debug_log.hpp"
#include "dmnt2_transport_layer.hpp"
#include "dmnt2_gdb_server.hpp"
#include "dmnt2_gdb_server_impl.hpp"
namespace ams::dmnt {
namespace {
constexpr size_t ServerThreadStackSize = util::AlignUp(4 * GdbPacketBufferSize + os::MemoryPageSize, os::ThreadStackAlignment);
alignas(os::ThreadStackAlignment) constinit u8 g_server_thread_stack[ServerThreadStackSize];
alignas(os::ThreadStackAlignment) constinit u8 g_events_thread_stack[util::AlignUp(2 * GdbPacketBufferSize + os::MemoryPageSize, os::ThreadStackAlignment)];
constinit os::ThreadType g_server_thread;
constinit util::TypedStorage<GdbServerImpl> g_gdb_server;
void GdbServerThreadFunction(void *) {
/* Loop forever, servicing our gdb server. */
while (true) {
/* Get a socket. */
int fd;
while ((fd = transport::Socket()) == -1) {
os::SleepThread(TimeSpan::FromSeconds(1));
}
/* Ensure we cleanup the socket when we're done with it. */
ON_SCOPE_EXIT {
transport::Close(fd);
os::SleepThread(TimeSpan::FromSeconds(1));
};
/* Bind. */
if (transport::Bind(fd, transport::PortName_GdbServer) == -1) {
continue;
}
/* Listen on our port. */
while (transport::Listen(fd, 0) == 0) {
/* Continue accepting clients, so long as we can. */
int client_fd;
while (true) {
/* Try to accept a client. */
if (client_fd = transport::Accept(fd); client_fd < 0) {
break;
}
{
/* Create gdb server for the socket. */
util::ConstructAt(g_gdb_server, client_fd, g_events_thread_stack, sizeof(g_events_thread_stack));
ON_SCOPE_EXIT { util::DestroyAt(g_gdb_server); };
/* Process for the server. */
util::GetReference(g_gdb_server).LoopProcess();
}
/* Close the client socket. */
transport::Close(client_fd);
}
}
}
}
}
void InitializeGdbServer() {
/* Create and start gdb server threads. */
R_ABORT_UNLESS(os::CreateThread(std::addressof(g_server_thread), GdbServerThreadFunction, nullptr, g_server_thread_stack, sizeof(g_server_thread_stack), os::HighestThreadPriority - 1));
os::StartThread(std::addressof(g_server_thread));
}
}