Merge pull request #7518 from jasonmolenda/cp/dont-strip-auth-bits-from-lr-0725

[lldb] [debugserver] Preserve signing bits on lr in debugserver (llvm#67384)

Author: jasonmolenda

lldb/tools/debugserver/source/MacOSX/arm64/DNBArchImplARM64.cpp

@@ -169,6 +169,23 @@ kern_return_t DNBArchMachARM64::GetGPRState(bool force) {
                          (thread_state_t)&m_state.context.gpr, &count);
   if (DNBLogEnabledForAny(LOG_THREAD)) {
     uint64_t *x = &m_state.context.gpr.__x[0];
+    DNBLogThreaded("thread_get_state signed regs "
+                   "\n   fp=%16.16llx"
+                   "\n   lr=%16.16llx"
+                   "\n   sp=%16.16llx"
+                   "\n   pc=%16.16llx",
+#if __has_feature(ptrauth_calls) && defined(__LP64__)
+                   reinterpret_cast<uint64_t>(m_state.context.gpr.__opaque_fp),
+                   reinterpret_cast<uint64_t>(m_state.context.gpr.__opaque_lr),
+                   reinterpret_cast<uint64_t>(m_state.context.gpr.__opaque_sp),
+                   reinterpret_cast<uint64_t>(m_state.context.gpr.__opaque_pc)
+#else
+                   m_state.context.gpr.__fp,
+                   m_state.context.gpr.__lr, 
+                   m_state.context.gpr.__sp,
+                   m_state.context.gpr.__pc
+#endif
+    );
 
 #if __has_feature(ptrauth_calls) && defined(__LP64__)
     uint64_t log_fp = clear_pac_bits(
@@ -2173,8 +2190,7 @@ bool DNBArchMachARM64::GetRegisterValue(uint32_t set, uint32_t reg,
               reinterpret_cast<uint64_t>(m_state.context.gpr.__opaque_pc));
           break;
         case gpr_lr:
-          value->value.uint64 = clear_pac_bits(
-              reinterpret_cast<uint64_t>(m_state.context.gpr.__opaque_lr));
+          value->value.uint64 = arm_thread_state64_get_lr(m_state.context.gpr);
           break;
         case gpr_sp:
           value->value.uint64 = clear_pac_bits(