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-rw-r--r--DevTools/UserspaceEmulator/Emulator.cpp10
-rw-r--r--DevTools/UserspaceEmulator/SoftCPU.h4
2 files changed, 8 insertions, 6 deletions
diff --git a/DevTools/UserspaceEmulator/Emulator.cpp b/DevTools/UserspaceEmulator/Emulator.cpp
index b07aa15e1a..1a2aaee0a7 100644
--- a/DevTools/UserspaceEmulator/Emulator.cpp
+++ b/DevTools/UserspaceEmulator/Emulator.cpp
@@ -167,14 +167,12 @@ int Emulator::exec()
bool trace = false;
while (!m_shutdown) {
- u32 base_eip = 0;
- if (trace)
- base_eip = m_cpu.eip();
+ m_cpu.save_base_eip();
auto insn = X86::Instruction::from_stream(m_cpu, true, true);
if (trace)
- out() << (const void*)base_eip << " \033[33;1m" << insn.to_string(base_eip, &symbol_provider) << "\033[0m";
+ out() << (const void*)m_cpu.base_eip() << " \033[33;1m" << insn.to_string(m_cpu.base_eip(), &symbol_provider) << "\033[0m";
(m_cpu.*insn.handler())(insn);
@@ -190,13 +188,13 @@ int Emulator::exec()
bool Emulator::is_in_malloc_or_free() const
{
- return (m_cpu.eip() >= m_malloc_symbol_start && m_cpu.eip() < m_malloc_symbol_end) || (m_cpu.eip() >= m_free_symbol_start && m_cpu.eip() < m_free_symbol_end);
+ return (m_cpu.base_eip() >= m_malloc_symbol_start && m_cpu.base_eip() < m_malloc_symbol_end) || (m_cpu.base_eip() >= m_free_symbol_start && m_cpu.base_eip() < m_free_symbol_end);
}
Vector<FlatPtr> Emulator::raw_backtrace()
{
Vector<FlatPtr> backtrace;
- backtrace.append(m_cpu.eip());
+ backtrace.append(m_cpu.base_eip());
// FIXME: Maybe do something if the backtrace has uninitialized data in the frame chain.
diff --git a/DevTools/UserspaceEmulator/SoftCPU.h b/DevTools/UserspaceEmulator/SoftCPU.h
index 925a8d46b2..e954873edf 100644
--- a/DevTools/UserspaceEmulator/SoftCPU.h
+++ b/DevTools/UserspaceEmulator/SoftCPU.h
@@ -56,6 +56,9 @@ public:
explicit SoftCPU(Emulator&);
void dump() const;
+ u32 base_eip() const { return m_base_eip; }
+ void save_base_eip() { m_base_eip = m_eip; }
+
u32 eip() const { return m_eip; }
void set_eip(u32 eip)
{
@@ -981,6 +984,7 @@ private:
bool m_flags_tainted { false };
u32 m_eip { 0 };
+ u32 m_base_eip { 0 };
const u8* m_cached_code_ptr { nullptr };
const u8* m_cached_code_end { nullptr };