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SvcQueryDebugProcessMemory

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This commit is contained in:
Michael Scire 2020-07-29 16:21:54 -07:00 committed by SciresM
parent 5de853b662
commit 3f17a34b67
3 changed files with 64 additions and 4 deletions
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2
libraries/libmesosphere/include/mesosphere/kern_k_debug_base.hpp
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@ -38,6 +38,8 @@ namespace ams::kern {
void Initialize();
Result Attach(KProcess *process);
Result QueryMemoryInfo(ams::svc::MemoryInfo *out_memory_info, ams::svc::PageInfo *out_page_info, KProcessAddress address);
Result GetDebugEventInfo(ams::svc::lp64::DebugEventInfo *out);
Result GetDebugEventInfo(ams::svc::ilp32::DebugEventInfo *out);

17
libraries/libmesosphere/source/kern_k_debug_base.cpp
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@ -31,6 +31,23 @@ namespace ams::kern {
this->continue_flags = 0;
}
Result KDebugBase::QueryMemoryInfo(ams::svc::MemoryInfo *out_memory_info, ams::svc::PageInfo *out_page_info, KProcessAddress address) {
/* Lock ourselves. */
KScopedLightLock lk(this->lock);
/* Check that we have a valid process. */
R_UNLESS(this->process != nullptr, svc::ResultProcessTerminated());
R_UNLESS(!this->process->IsTerminated(), svc::ResultProcessTerminated());
/* Query the mapping's info. */
KMemoryInfo info;
R_TRY(process->GetPageTable().QueryInfo(std::addressof(info), out_page_info, address));
/* Write output. */
*out_memory_info = info.GetSvcMemoryInfo();
return ResultSuccess();
}
Result KDebugBase::Attach(KProcess *target) {
/* Check that the process isn't null. */
MESOSPHERE_ASSERT(target != nullptr);

49
libraries/libmesosphere/source/svc/kern_svc_debug.cpp
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@ -79,6 +79,47 @@ namespace ams::kern::svc {
return ResultSuccess();
}
Result QueryDebugProcessMemory(ams::svc::MemoryInfo *out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle debug_handle, uintptr_t address) {
/* Get the debug object. */
KScopedAutoObject debug = GetCurrentProcess().GetHandleTable().GetObject<KDebug>(debug_handle);
R_UNLESS(debug.IsNotNull(), svc::ResultInvalidHandle());
/* Query the mapping's info. */
R_TRY(debug->QueryMemoryInfo(out_memory_info, out_page_info, address));
return ResultSuccess();
}
template<typename T>
Result QueryDebugProcessMemory(KUserPointer<T *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle debug_handle, uint64_t address) {
/* Get an ams::svc::MemoryInfo for the region. */
ams::svc::MemoryInfo info = {};
R_TRY(QueryDebugProcessMemory(std::addressof(info), out_page_info, debug_handle, address));
/* Copy the info to userspace. */
if constexpr (std::same_as<T, ams::svc::MemoryInfo>) {
R_TRY(out_memory_info.CopyFrom(std::addressof(info)));
} else {
/* Convert the info. */
T converted_info = {};
static_assert(std::same_as<decltype(T{}.addr), decltype(ams::svc::MemoryInfo{}.addr)>);
static_assert(std::same_as<decltype(T{}.size), decltype(ams::svc::MemoryInfo{}.size)>);
converted_info.addr = info.addr;
converted_info.size = info.size;
converted_info.state = info.state;
converted_info.attr = info.attr;
converted_info.perm = info.perm;
converted_info.ipc_refcount = info.ipc_refcount;
converted_info.device_refcount = info.device_refcount;
/* Copy it. */
R_TRY(out_memory_info.CopyFrom(std::addressof(converted_info)));
}
return ResultSuccess();
}
}
/* ============================= 64 ABI ============================= */
@ -115,8 +156,8 @@ namespace ams::kern::svc {
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 QueryDebugProcessMemory64(KUserPointer<ams::svc::lp64::MemoryInfo *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle debug_handle, ams::svc::Address address) {
return QueryDebugProcessMemory(out_memory_info, out_page_info, debug_handle, address);
}
Result ReadDebugProcessMemory64(ams::svc::Address buffer, ams::svc::Handle debug_handle, ams::svc::Address address, ams::svc::Size size) {
@ -169,8 +210,8 @@ namespace ams::kern::svc {
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 QueryDebugProcessMemory64From32(KUserPointer<ams::svc::ilp32::MemoryInfo *> out_memory_info, ams::svc::PageInfo *out_page_info, ams::svc::Handle debug_handle, ams::svc::Address address) {
return QueryDebugProcessMemory(out_memory_info, out_page_info, debug_handle, address);
}
Result ReadDebugProcessMemory64From32(ams::svc::Address buffer, ams::svc::Handle debug_handle, ams::svc::Address address, ams::svc::Size size) {