Atmosphere/libraries/libstratosphere/source/osdbg/impl/osdbg_thread_info.os.horizon.cpp

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2021-07-20 00:35:00 +00:00
/*
* 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 "osdbg_thread_info.os.horizon.hpp"
#include "osdbg_thread_type.os.horizon.hpp"
#include "osdbg_thread_local_region.os.horizon.hpp"
#include "../../os/impl/os_thread_manager_impl.os.horizon.hpp"
namespace ams::osdbg::impl {
namespace {
s32 ConvertToUserPriority(s32 horizon_priority) {
return horizon_priority - os::impl::UserThreadPriorityOffset;
}
s32 GetCurrentThreadPriorityImpl(const ThreadInfo *info) {
u64 dummy;
u32 horizon_priority;
if (R_FAILED(svc::GetDebugThreadParam(std::addressof(dummy), std::addressof(horizon_priority), info->_debug_handle, info->_debug_info_create_thread.thread_id, svc::DebugThreadParam_Priority))) {
return info->_base_priority;
}
return ConvertToUserPriority(static_cast<s32>(horizon_priority));
}
void FillWithCurrentInfoImpl(ThreadInfo *info, const auto &thread_type_impl) {
/* Set fields. */
info->_base_priority = thread_type_impl._base_priority;
info->_current_priority = GetCurrentThreadPriorityImpl(info);
info->_stack_size = thread_type_impl._stack_size;
info->_stack = thread_type_impl._stack;
info->_argument = thread_type_impl._argument;
info->_function = thread_type_impl._thread_function;
info->_name_pointer = thread_type_impl._name_pointer;
}
}
Result ThreadInfoHorizonImpl::FillWithCurrentInfo(ThreadInfo *info) {
/* Detect lp64. */
const bool is_lp64 = IsLp64(info);
/* Ensure that we have a thread type. */
if (info->_thread_type == nullptr) {
/* Ensure we exit with correct thread type. */
auto thread_guard = SCOPE_GUARD { info->_thread_type = nullptr; };
/* Set the target thread type. */
GetTargetThreadType(info);
/* If it's still nullptr, we failed to get the thread type. */
R_UNLESS(info->_thread_type != nullptr, osdbg::ResultCannotGetThreadInfo());
/* Check that the thread type is valid. */
R_UNLESS(info->_thread_type_type != ThreadTypeType_Unknown, osdbg::ResultUnsupportedThreadVersion());
/* We successfully got the thread type. */
thread_guard.Cancel();
}
/* Read and process the thread type. */
ThreadTypeCommon thread_type;
switch (info->_thread_type_type) {
case ThreadTypeType_Nintendo:
if (is_lp64) {
/* Read in the thread type. */
R_TRY(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(thread_type.lp64)), info->_debug_handle, reinterpret_cast<uintptr_t>(info->_thread_type), sizeof(thread_type.lp64)));
/* Process different versions. */
switch (thread_type.lp64._version) {
case 0x0000:
case 0xFFFF:
FillWithCurrentInfoImpl(info, thread_type.lp64_v0);
break;
case 0x0001:
FillWithCurrentInfoImpl(info, thread_type.lp64);
break;
default:
return osdbg::ResultUnsupportedThreadVersion();
}
} else {
/* Read in the thread type. */
R_TRY(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(thread_type.ilp32)), info->_debug_handle, reinterpret_cast<uintptr_t>(info->_thread_type), sizeof(thread_type.ilp32)));
/* Process different versions. */
switch (thread_type.ilp32._version) {
case 0x0000:
case 0xFFFF:
FillWithCurrentInfoImpl(info, thread_type.ilp32_v0);
break;
case 0x0001:
FillWithCurrentInfoImpl(info, thread_type.ilp32);
break;
default:
return osdbg::ResultUnsupportedThreadVersion();
}
}
break;
case ThreadTypeType_Stratosphere:
{
/* Read in the thread type. */
R_TRY(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(thread_type.stratosphere)), info->_debug_handle, reinterpret_cast<uintptr_t>(info->_thread_type), sizeof(thread_type.stratosphere)));
/* Set fields. */
const auto &thread_type_impl = thread_type.stratosphere;
/* Check that our thread version is valid. */
R_UNLESS(thread_type_impl.version == 0x0000 || thread_type_impl.version == 0xFFFF, osdbg::ResultUnsupportedThreadVersion());
info->_base_priority = thread_type_impl.base_priority;
info->_current_priority = GetCurrentThreadPriorityImpl(info);
info->_stack_size = thread_type_impl.stack_size;
info->_stack = reinterpret_cast<uintptr_t>(thread_type_impl.stack);
info->_argument = reinterpret_cast<uintptr_t>(thread_type_impl.argument);
info->_function = reinterpret_cast<uintptr_t>(thread_type_impl.function);
info->_name_pointer = reinterpret_cast<uintptr_t>(thread_type_impl.name_pointer);
}
break;
case ThreadTypeType_Libnx:
{
/* Read in the thread type. */
R_TRY(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(thread_type.libnx)), info->_debug_handle, reinterpret_cast<uintptr_t>(info->_thread_type), sizeof(thread_type.libnx)));
/* Set fields. */
const auto &thread_type_impl = thread_type.libnx;
/* NOTE: libnx does not store/track base priority anywhere. */
info->_base_priority = -1;
info->_current_priority = GetCurrentThreadPriorityImpl(info);
if (info->_current_priority != info->_base_priority) {
info->_base_priority = info->_current_priority;
}
info->_stack_size = thread_type_impl.stack_sz;
info->_stack = reinterpret_cast<uintptr_t>(thread_type_impl.stack_mirror);
/* Parse thread entry args. */
{
LibnxThreadEntryArgs thread_entry_args;
if (R_SUCCEEDED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(thread_entry_args)), info->_debug_handle, info->_stack + info->_stack_size, sizeof(LibnxThreadEntryArgs)))) {
info->_argument = thread_entry_args.arg;
info->_function = thread_entry_args.entry;
} else {
/* Failed to read the argument/function. */
info->_argument = 0;
info->_function = 0;
}
}
/* Libnx threads don't have names. */
info->_name_pointer = 0;
}
break;
default:
return osdbg::ResultUnsupportedThreadVersion();
}
return ResultSuccess();
}
}