================
@@ -1845,8 +1986,14 @@ class _LIBUNWIND_HIDDEN Registers_arm64 {
uint64_t getSP() const { return _registers.__sp; }
void setSP(uint64_t value) { _registers.__sp = value; }
- uint64_t getIP() const { return _registers.__pc; }
- void setIP(uint64_t value) { _registers.__pc = value; }
+ uint64_t getIP() const { return authPC(&_registers, getDiscriminator()); }
+ void setIP(uint64_t value) {
+ // First authenticate the current value of the IP to ensure the context
----------------
asl wrote:
Will you please expand how this would work? As far as I can see, the `value`
above comes from outside (e.g. from `setRegister` call). Is this just saved
unsigned PC that is located somewhere on the stack? So it could be substituted
and then organized in ROP-like chain during unwinding process?
https://github.com/llvm/llvm-project/pull/113368
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