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gdbstub: only let Execute breakpoints write/restore BKPT opcodes into target memory
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parent
bad2e084e3
commit
d388fe58f7
@ -409,10 +409,13 @@ static void RemoveBreakpoint(BreakpointType type, VAddr addr) {
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LOG_DEBUG(Debug_GDBStub, "gdb: removed a breakpoint: {:08x} bytes at {:08x} of type {}",
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bp->second.len, bp->second.addr, static_cast<int>(type));
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Core::System::GetInstance().Memory().WriteBlock(
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*Core::System::GetInstance().Kernel().GetCurrentProcess(), bp->second.addr,
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bp->second.inst.data(), bp->second.inst.size());
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Core::CPU().ClearInstructionCache();
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if (type == BreakpointType::Execute) {
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Core::System::GetInstance().Memory().WriteBlock(
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*Core::System::GetInstance().Kernel().GetCurrentProcess(), bp->second.addr,
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bp->second.inst.data(), bp->second.inst.size());
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Core::CPU().ClearInstructionCache();
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}
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p.erase(addr);
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}
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@ -921,11 +924,14 @@ static bool CommitBreakpoint(BreakpointType type, VAddr addr, u32 len) {
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Core::System::GetInstance().Memory().ReadBlock(
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*Core::System::GetInstance().Kernel().GetCurrentProcess(), addr, breakpoint.inst.data(),
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breakpoint.inst.size());
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static constexpr std::array<u8, 4> btrap{0x70, 0x00, 0x20, 0xe1};
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Core::System::GetInstance().Memory().WriteBlock(
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*Core::System::GetInstance().Kernel().GetCurrentProcess(), addr, btrap.data(),
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btrap.size());
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Core::CPU().ClearInstructionCache();
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if (type == BreakpointType::Execute) {
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Core::System::GetInstance().Memory().WriteBlock(
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*Core::System::GetInstance().Kernel().GetCurrentProcess(), addr, btrap.data(),
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btrap.size());
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Core::CPU().ClearInstructionCache();
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}
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p.insert({addr, breakpoint});
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LOG_DEBUG(Debug_GDBStub, "gdb: added {} breakpoint: {:08x} bytes at {:08x}\n",
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