mac/arm64: Port SignalHandler::FillRegisterState().

Bug: chromium:1098899 Change-Id: I3ff79c00063f7da36b141a3a7b0d2daa71c9801a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270705 Commit-Queue: Peter Marshall <[email protected]> Reviewed-by: Peter Marshall <[email protected]> Auto-Submit: Nico Weber <[email protected]> Cr-Commit-Position: refs/heads/master@{#68568}
v8 · Jun 29, 2020 · cf71540 · cf71540
1 parent 3045656
commit cf71540
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/src/libsampler/sampler.cc b/src/libsampler/sampler.cc
@@ -468,7 +468,14 @@ void SignalHandler::FillRegisterState(void* context, RegisterState* state) {
   state->pc = reinterpret_cast<void*>(mcontext->__ss.__eip);
   state->sp = reinterpret_cast<void*>(mcontext->__ss.__esp);
   state->fp = reinterpret_cast<void*>(mcontext->__ss.__ebp);
-#endif  // V8_HOST_ARCH_IA32
+#elif V8_HOST_ARCH_ARM64
+  state->pc =
+      reinterpret_cast<void*>(arm_thread_state64_get_pc(mcontext->__ss));
+  state->sp =
+      reinterpret_cast<void*>(arm_thread_state64_get_sp(mcontext->__ss));
+  state->fp =
+      reinterpret_cast<void*>(arm_thread_state64_get_fp(mcontext->__ss));
+#endif  // V8_HOST_ARCH_*
 #elif V8_OS_FREEBSD
 #if V8_HOST_ARCH_IA32
   state->pc = reinterpret_cast<void*>(mcontext.mc_eip);