From e2b74f635410891b4ab9c202ecdd83dfe05df239 Mon Sep 17 00:00:00 2001
From: Hedges <hedges@resync.pl>
Date: Tue, 7 Aug 2018 03:01:24 +0100
Subject: GDBStub works with both Unicorn and Dynarmic now (#941)
* GDBStub works with both Unicorn and Dynarmic now
* Tidy up
---
src/core/gdbstub/gdbstub.cpp | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'src/core/gdbstub/gdbstub.cpp')
diff --git a/src/core/gdbstub/gdbstub.cpp b/src/core/gdbstub/gdbstub.cpp
index 884e64e994..332e5c3d0d 100644
--- a/src/core/gdbstub/gdbstub.cpp
+++ b/src/core/gdbstub/gdbstub.cpp
@@ -173,6 +173,7 @@ struct Breakpoint {
bool active;
VAddr addr;
u64 len;
+ std::array<u8, 4> inst;
};
using BreakpointMap = std::map<VAddr, Breakpoint>;
@@ -453,6 +454,8 @@ static void RemoveBreakpoint(BreakpointType type, VAddr addr) {
LOG_DEBUG(Debug_GDBStub, "gdb: removed a breakpoint: {:016X} bytes at {:016X} of type {}",
bp->second.len, bp->second.addr, static_cast<int>(type));
+ Memory::WriteBlock(bp->second.addr, bp->second.inst.data(), bp->second.inst.size());
+ Core::System::GetInstance().InvalidateCpuInstructionCaches();
p.erase(addr);
}
@@ -937,6 +940,7 @@ static void WriteMemory() {
GdbHexToMem(data.data(), len_pos + 1, len);
Memory::WriteBlock(addr, data.data(), len);
+ Core::System::GetInstance().InvalidateCpuInstructionCaches();
SendReply("OK");
}
@@ -956,6 +960,7 @@ static void Step() {
step_loop = true;
halt_loop = true;
send_trap = true;
+ Core::System::GetInstance().InvalidateCpuInstructionCaches();
}
/// Tell the CPU if we hit a memory breakpoint.
@@ -972,6 +977,7 @@ static void Continue() {
memory_break = false;
step_loop = false;
halt_loop = false;
+ Core::System::GetInstance().InvalidateCpuInstructionCaches();
}
/**
@@ -988,6 +994,10 @@ static bool CommitBreakpoint(BreakpointType type, VAddr addr, u64 len) {
breakpoint.active = true;
breakpoint.addr = addr;
breakpoint.len = len;
+ Memory::ReadBlock(addr, breakpoint.inst.data(), breakpoint.inst.size());
+ static constexpr std::array<u8, 4> btrap{{0xd4, 0x20, 0x7d, 0x0}};
+ Memory::WriteBlock(addr, btrap.data(), btrap.size());
+ Core::System::GetInstance().InvalidateCpuInstructionCaches();
p.insert({addr, breakpoint});
LOG_DEBUG(Debug_GDBStub, "gdb: added {} breakpoint: {:016X} bytes at {:016X}",
--
cgit v1.2.3-70-g09d2