Atmosphere/libraries/libmesosphere/source/svc/kern_svc_debug.cpp

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/*
* 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 <mesosphere.hpp>
namespace ams::kern::svc {
/* ============================= Common ============================= */
namespace {
Result DebugActiveProcess(ams::svc::Handle *out_handle, uint64_t process_id) {
/* Get the process from its id. */
KProcess *process = KProcess::GetProcessFromId(process_id);
R_UNLESS(process != nullptr, svc::ResultInvalidProcessId());
/* Close the reference we opened to the process on scope exit. */
ON_SCOPE_EXIT { process->Close(); };
/* Check that the debugging is allowed. */
if (!process->IsPermittedDebug()) {
R_UNLESS(GetCurrentProcess().CanForceDebug(), svc::ResultInvalidState());
}
/* Disallow debugging one's own processs, to prevent softlocks. */
R_UNLESS(process != GetCurrentProcessPointer(), svc::ResultInvalidState());
/* Get the current handle table. */
auto &handle_table = GetCurrentProcess().GetHandleTable();
/* Create a new debug object. */
KDebug *debug = KDebug::Create();
R_UNLESS(debug != nullptr, svc::ResultOutOfResource());
ON_SCOPE_EXIT { debug->Close(); };
/* Initialize the debug object. */
debug->Initialize();
/* Register the debug object. */
KDebug::Register(debug);
/* Try to attach to the target process. */
R_TRY(debug->Attach(process));
/* Add the new debug object to the handle table. */
R_TRY(handle_table.Add(out_handle, debug));
return ResultSuccess();
}
template<typename EventInfoType>
Result GetDebugEvent(KUserPointer<EventInfoType *> out_info, ams::svc::Handle debug_handle) {
/* Get the debug object. */
KScopedAutoObject debug = GetCurrentProcess().GetHandleTable().GetObject<KDebug>(debug_handle);
R_UNLESS(debug.IsNotNull(), svc::ResultInvalidHandle());
/* Create and clear a new event info. */
EventInfoType info;
std::memset(std::addressof(info), 0, sizeof(info));
/* Get the next info from the debug object. */
R_TRY(debug->GetDebugEventInfo(std::addressof(info)));
/* Copy the info out to the user. */
R_TRY(out_info.CopyFrom(std::addressof(info)));
return ResultSuccess();
}
}
/* ============================= 64 ABI ============================= */
Result DebugActiveProcess64(ams::svc::Handle *out_handle, uint64_t process_id) {
return DebugActiveProcess(out_handle, process_id);
}
Result BreakDebugProcess64(ams::svc::Handle debug_handle) {
MESOSPHERE_PANIC("Stubbed SvcBreakDebugProcess64 was called.");
}
Result TerminateDebugProcess64(ams::svc::Handle debug_handle) {
MESOSPHERE_PANIC("Stubbed SvcTerminateDebugProcess64 was called.");
}
Result GetDebugEvent64(KUserPointer<ams::svc::lp64::DebugEventInfo *> out_info, ams::svc::Handle debug_handle) {
return GetDebugEvent(out_info, debug_handle);
}
Result ContinueDebugEvent64(ams::svc::Handle debug_handle, uint32_t flags, KUserPointer<const uint64_t *> thread_ids, int32_t num_thread_ids) {
MESOSPHERE_PANIC("Stubbed SvcContinueDebugEvent64 was called.");
}
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Result LegacyContinueDebugEvent64(ams::svc::Handle debug_handle, uint32_t flags, uint64_t thread_id) {
MESOSPHERE_PANIC("Stubbed SvcLegacyContinueDebugEvent64 was called.");
}
Result GetDebugThreadContext64(KUserPointer<ams::svc::ThreadContext *> out_context, ams::svc::Handle debug_handle, uint64_t thread_id, uint32_t context_flags) {
MESOSPHERE_PANIC("Stubbed SvcGetDebugThreadContext64 was called.");
}
Result SetDebugThreadContext64(ams::svc::Handle debug_handle, uint64_t thread_id, KUserPointer<const ams::svc::ThreadContext *> context, uint32_t context_flags) {
MESOSPHERE_PANIC("Stubbed SvcSetDebugThreadContext64 was called.");
}
Result QueryDebugProcessMemory64(KUserPointer<ams::svc::lp64::MemoryInfo *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle process_handle, ams::svc::Address address) {
MESOSPHERE_PANIC("Stubbed SvcQueryDebugProcessMemory64 was called.");
}
Result ReadDebugProcessMemory64(ams::svc::Address buffer, ams::svc::Handle debug_handle, ams::svc::Address address, ams::svc::Size size) {
MESOSPHERE_PANIC("Stubbed SvcReadDebugProcessMemory64 was called.");
}
Result WriteDebugProcessMemory64(ams::svc::Handle debug_handle, ams::svc::Address buffer, ams::svc::Address address, ams::svc::Size size) {
MESOSPHERE_PANIC("Stubbed SvcWriteDebugProcessMemory64 was called.");
}
Result SetHardwareBreakPoint64(ams::svc::HardwareBreakPointRegisterName name, uint64_t flags, uint64_t value) {
MESOSPHERE_PANIC("Stubbed SvcSetHardwareBreakPoint64 was called.");
}
Result GetDebugThreadParam64(uint64_t *out_64, uint32_t *out_32, ams::svc::Handle debug_handle, uint64_t thread_id, ams::svc::DebugThreadParam param) {
MESOSPHERE_PANIC("Stubbed SvcGetDebugThreadParam64 was called.");
}
/* ============================= 64From32 ABI ============================= */
Result DebugActiveProcess64From32(ams::svc::Handle *out_handle, uint64_t process_id) {
return DebugActiveProcess(out_handle, process_id);
}
Result BreakDebugProcess64From32(ams::svc::Handle debug_handle) {
MESOSPHERE_PANIC("Stubbed SvcBreakDebugProcess64From32 was called.");
}
Result TerminateDebugProcess64From32(ams::svc::Handle debug_handle) {
MESOSPHERE_PANIC("Stubbed SvcTerminateDebugProcess64From32 was called.");
}
Result GetDebugEvent64From32(KUserPointer<ams::svc::ilp32::DebugEventInfo *> out_info, ams::svc::Handle debug_handle) {
return GetDebugEvent(out_info, debug_handle);
}
Result ContinueDebugEvent64From32(ams::svc::Handle debug_handle, uint32_t flags, KUserPointer<const uint64_t *> thread_ids, int32_t num_thread_ids) {
MESOSPHERE_PANIC("Stubbed SvcContinueDebugEvent64From32 was called.");
}
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Result LegacyContinueDebugEvent64From32(ams::svc::Handle debug_handle, uint32_t flags, uint64_t thread_id) {
MESOSPHERE_PANIC("Stubbed SvcLegacyContinueDebugEvent64From32 was called.");
}
Result GetDebugThreadContext64From32(KUserPointer<ams::svc::ThreadContext *> out_context, ams::svc::Handle debug_handle, uint64_t thread_id, uint32_t context_flags) {
MESOSPHERE_PANIC("Stubbed SvcGetDebugThreadContext64From32 was called.");
}
Result SetDebugThreadContext64From32(ams::svc::Handle debug_handle, uint64_t thread_id, KUserPointer<const ams::svc::ThreadContext *> context, uint32_t context_flags) {
MESOSPHERE_PANIC("Stubbed SvcSetDebugThreadContext64From32 was called.");
}
Result QueryDebugProcessMemory64From32(KUserPointer<ams::svc::ilp32::MemoryInfo *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle process_handle, ams::svc::Address address) {
MESOSPHERE_PANIC("Stubbed SvcQueryDebugProcessMemory64From32 was called.");
}
Result ReadDebugProcessMemory64From32(ams::svc::Address buffer, ams::svc::Handle debug_handle, ams::svc::Address address, ams::svc::Size size) {
MESOSPHERE_PANIC("Stubbed SvcReadDebugProcessMemory64From32 was called.");
}
Result WriteDebugProcessMemory64From32(ams::svc::Handle debug_handle, ams::svc::Address buffer, ams::svc::Address address, ams::svc::Size size) {
MESOSPHERE_PANIC("Stubbed SvcWriteDebugProcessMemory64From32 was called.");
}
Result SetHardwareBreakPoint64From32(ams::svc::HardwareBreakPointRegisterName name, uint64_t flags, uint64_t value) {
MESOSPHERE_PANIC("Stubbed SvcSetHardwareBreakPoint64From32 was called.");
}
Result GetDebugThreadParam64From32(uint64_t *out_64, uint32_t *out_32, ams::svc::Handle debug_handle, uint64_t thread_id, ams::svc::DebugThreadParam param) {
MESOSPHERE_PANIC("Stubbed SvcGetDebugThreadParam64From32 was called.");
}
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}