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-rw-r--r--src/core/arm/unicorn/arm_unicorn.cpp38
-rw-r--r--src/core/arm/unicorn/arm_unicorn.h4
2 files changed, 41 insertions, 1 deletions
diff --git a/src/core/arm/unicorn/arm_unicorn.cpp b/src/core/arm/unicorn/arm_unicorn.cpp
index c0cc62f03..ce6c5616d 100644
--- a/src/core/arm/unicorn/arm_unicorn.cpp
+++ b/src/core/arm/unicorn/arm_unicorn.cpp
@@ -35,6 +35,17 @@ LoadDll LoadDll::g_load_dll;
} \
} while (0)
+static void CodeHook(uc_engine* uc, uint64_t address, uint32_t size, void* user_data) {
+ GDBStub::BreakpointAddress bkpt =
+ GDBStub::GetNextBreakpointFromAddress(address, GDBStub::BreakpointType::Execute);
+ if (GDBStub::IsMemoryBreak() ||
+ (bkpt.type != GDBStub::BreakpointType::None && address == bkpt.address)) {
+ auto core = static_cast<ARM_Unicorn*>(user_data);
+ core->RecordBreak(bkpt);
+ uc_emu_stop(uc);
+ }
+}
+
static void InterruptHook(uc_engine* uc, u32 intNo, void* user_data) {
u32 esr{};
CHECKED(uc_reg_read(uc, UC_ARM64_REG_ESR, &esr));
@@ -67,6 +78,10 @@ ARM_Unicorn::ARM_Unicorn() {
uc_hook hook{};
CHECKED(uc_hook_add(uc, &hook, UC_HOOK_INTR, (void*)InterruptHook, this, 0, -1));
CHECKED(uc_hook_add(uc, &hook, UC_HOOK_MEM_INVALID, (void*)UnmappedMemoryHook, this, 0, -1));
+ if (GDBStub::IsServerEnabled()) {
+ CHECKED(uc_hook_add(uc, &hook, UC_HOOK_CODE, (void*)CodeHook, this, 0, -1));
+ last_bkpt_hit = false;
+ }
}
ARM_Unicorn::~ARM_Unicorn() {
@@ -155,7 +170,11 @@ void ARM_Unicorn::SetTlsAddress(VAddr base) {
}
void ARM_Unicorn::Run() {
- ExecuteInstructions(std::max(CoreTiming::GetDowncount(), 0));
+ if (GDBStub::IsServerEnabled()) {
+ ExecuteInstructions(std::max(4000000, 0));
+ } else {
+ ExecuteInstructions(std::max(CoreTiming::GetDowncount(), 0));
+ }
}
void ARM_Unicorn::Step() {
@@ -168,6 +187,18 @@ void ARM_Unicorn::ExecuteInstructions(int num_instructions) {
MICROPROFILE_SCOPE(ARM_Jit);
CHECKED(uc_emu_start(uc, GetPC(), 1ULL << 63, 0, num_instructions));
CoreTiming::AddTicks(num_instructions);
+ if (GDBStub::IsServerEnabled()) {
+ if (last_bkpt_hit) {
+ uc_reg_write(uc, UC_ARM64_REG_PC, &last_bkpt.address);
+ }
+ Kernel::Thread* thread = Kernel::GetCurrentThread();
+ SaveContext(thread->context);
+ if (last_bkpt_hit) {
+ last_bkpt_hit = false;
+ GDBStub::Break();
+ }
+ GDBStub::SendTrap(thread, 5);
+ }
}
void ARM_Unicorn::SaveContext(ARM_Interface::ThreadContext& ctx) {
@@ -233,3 +264,8 @@ void ARM_Unicorn::PrepareReschedule() {
}
void ARM_Unicorn::ClearInstructionCache() {}
+
+void ARM_Unicorn::RecordBreak(GDBStub::BreakpointAddress bkpt) {
+ last_bkpt = bkpt;
+ last_bkpt_hit = true;
+}
diff --git a/src/core/arm/unicorn/arm_unicorn.h b/src/core/arm/unicorn/arm_unicorn.h
index b99b58e4c..a482a2aa3 100644
--- a/src/core/arm/unicorn/arm_unicorn.h
+++ b/src/core/arm/unicorn/arm_unicorn.h
@@ -7,6 +7,7 @@
#include <unicorn/unicorn.h>
#include "common/common_types.h"
#include "core/arm/arm_interface.h"
+#include "core/gdbstub/gdbstub.h"
class ARM_Unicorn final : public ARM_Interface {
public:
@@ -35,7 +36,10 @@ public:
void Step() override;
void ClearInstructionCache() override;
void PageTableChanged() override{};
+ void RecordBreak(GDBStub::BreakpointAddress bkpt);
private:
uc_engine* uc{};
+ GDBStub::BreakpointAddress last_bkpt{};
+ bool last_bkpt_hit;
};