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core/debugger: memory breakpoint support

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This commit is contained in:
Liam 2022-06-06 12:56:01 -04:00
parent f86b770ff7
commit 208ed712f4
19 changed files with 520 additions and 64 deletions
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30
src/core/hle/kernel/k_process.h
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@ -7,6 +7,7 @@
#include <array>
#include <cstddef>
#include <list>
#include <map>
#include <string>
#include "common/common_types.h"
#include "core/hle/kernel/k_address_arbiter.h"
@ -68,6 +69,20 @@ enum class ProcessActivity : u32 {
Paused,
};
enum class DebugWatchpointType : u8 {
None = 0,
Read = 1 << 0,
Write = 1 << 1,
ReadOrWrite = Read | Write,
};
DECLARE_ENUM_FLAG_OPERATORS(DebugWatchpointType);
struct DebugWatchpoint {
VAddr start_address;
VAddr end_address;
DebugWatchpointType type;
};
class KProcess final : public KAutoObjectWithSlabHeapAndContainer<KProcess, KWorkerTask> {
KERNEL_AUTOOBJECT_TRAITS(KProcess, KSynchronizationObject);
@ -374,6 +389,19 @@ public:
// Frees a used TLS slot identified by the given address
ResultCode DeleteThreadLocalRegion(VAddr addr);
///////////////////////////////////////////////////////////////////////////////////////////////
// Debug watchpoint management
// Attempts to insert a watchpoint into a free slot. Returns false if none are available.
bool InsertWatchpoint(Core::System& system, VAddr addr, u64 size, DebugWatchpointType type);
// Attempts to remove the watchpoint specified by the given parameters.
bool RemoveWatchpoint(Core::System& system, VAddr addr, u64 size, DebugWatchpointType type);
const std::array<DebugWatchpoint, Core::Hardware::NUM_WATCHPOINTS>& GetWatchpoints() const {
return watchpoints;
}
private:
void PinThread(s32 core_id, KThread* thread) {
ASSERT(0 <= core_id && core_id < static_cast<s32>(Core::Hardware::NUM_CPU_CORES));
@ -478,6 +506,8 @@ private:
std::array<KThread*, Core::Hardware::NUM_CPU_CORES> running_threads{};
std::array<u64, Core::Hardware::NUM_CPU_CORES> running_thread_idle_counts{};
std::array<KThread*, Core::Hardware::NUM_CPU_CORES> pinned_threads{};
std::array<DebugWatchpoint, Core::Hardware::NUM_WATCHPOINTS> watchpoints{};
std::map<VAddr, u64> debug_page_refcounts;
KThread* exception_thread{};