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https://github.com/Atmosphere-NX/Atmosphere-libs.git
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00203fd7c3
* result: try out some experimental shenanigans * result: sketch out some more shenanigans * result: see what it looks like to convert kernel to use result conds instead of guards * make rest of kernel use experimental new macro-ing
98 lines
4.4 KiB
C++
98 lines
4.4 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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namespace ams::kern::svc {
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/* ============================= Common ============================= */
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namespace {
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Result QueryProcessMemory(ams::svc::MemoryInfo *out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle process_handle, uintptr_t address) {
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/* Get the process. */
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KScopedAutoObject process = GetCurrentProcess().GetHandleTable().GetObject<KProcess>(process_handle);
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R_UNLESS(process.IsNotNull(), svc::ResultInvalidHandle());
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/* Query the mapping's info. */
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KMemoryInfo info;
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R_TRY(process->GetPageTable().QueryInfo(std::addressof(info), out_page_info, address));
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/* Write output. */
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*out_memory_info = info.GetSvcMemoryInfo();
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R_SUCCEED();
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}
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template<typename T>
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Result QueryProcessMemory(KUserPointer<T *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle process_handle, uint64_t address) {
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/* Get an ams::svc::MemoryInfo for the region. */
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ams::svc::MemoryInfo info = {};
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R_TRY(QueryProcessMemory(std::addressof(info), out_page_info, process_handle, address));
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/* Copy the info to userspace. */
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if constexpr (std::same_as<T, ams::svc::MemoryInfo>) {
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R_TRY(out_memory_info.CopyFrom(std::addressof(info)));
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} else {
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/* Convert the info. */
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T converted_info = {};
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static_assert(std::same_as<decltype(T{}.base_address), decltype(ams::svc::MemoryInfo{}.base_address)>);
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static_assert(std::same_as<decltype(T{}.size), decltype(ams::svc::MemoryInfo{}.size)>);
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converted_info.base_address = info.base_address;
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converted_info.size = info.size;
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converted_info.state = info.state;
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converted_info.attribute = info.attribute;
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converted_info.permission = info.permission;
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converted_info.ipc_count = info.ipc_count;
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converted_info.device_count = info.device_count;
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/* Copy it. */
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R_TRY(out_memory_info.CopyFrom(std::addressof(converted_info)));
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}
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R_SUCCEED();
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}
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template<typename T>
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Result QueryMemory(KUserPointer<T *> out_memory_info, ams::svc::PageInfo *out_page_info, uintptr_t address) {
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/* Query memory is just QueryProcessMemory on the current process. */
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R_RETURN(QueryProcessMemory(out_memory_info, out_page_info, ams::svc::PseudoHandle::CurrentProcess, address));
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}
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}
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/* ============================= 64 ABI ============================= */
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Result QueryMemory64(KUserPointer<ams::svc::lp64::MemoryInfo *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Address address) {
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R_RETURN(QueryMemory(out_memory_info, out_page_info, address));
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}
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Result QueryProcessMemory64(KUserPointer<ams::svc::lp64::MemoryInfo *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle process_handle, uint64_t address) {
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R_RETURN(QueryProcessMemory(out_memory_info, out_page_info, process_handle, address));
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}
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/* ============================= 64From32 ABI ============================= */
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Result QueryMemory64From32(KUserPointer<ams::svc::ilp32::MemoryInfo *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Address address) {
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R_RETURN(QueryMemory(out_memory_info, out_page_info, address));
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}
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Result QueryProcessMemory64From32(KUserPointer<ams::svc::ilp32::MemoryInfo *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle process_handle, uint64_t address) {
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R_RETURN(QueryProcessMemory(out_memory_info, out_page_info, process_handle, address));
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}
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}
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