[Lldb-commits] [PATCH] D147820: debugserver: move AArch64 watchpoint traps within a watchpointed region, parse ESR flags and send them to lldb

[Jason Molenda via Phabricator via lldb-commits]

jasonmolenda added inline comments.


================
Comment at: lldb/tools/debugserver/source/MacOSX/MachException.cpp:162-169
+  if (exc_type == EXC_BREAKPOINT && exc_data[0] == EXC_ARM_DA_DEBUG &&
+      exc_data.size() > 1) {
+    stop_info->reason = eStopTypeWatchpoint;
+    stop_info->details.watchpoint.mach_exception_addr = exc_data[1];
+    stop_info->details.watchpoint.addr = INVALID_NUB_ADDRESS;
+    if (exc_data.size() >= 3) {
+      stop_info->details.watchpoint.hw_idx = exc_data[2];
----------------
jasonmolenda wrote:
> JDevlieghere wrote:
> > Interesting that you picked `> 1` on line 163 and `>= 3` on line 168. 
> Yeah I should check for `> 2` in the first conditional expression, because I"m going to access `exc_data[1]`.  The third element (`exc_data[2]`) with the watchpoint number is optional and may not be provided in the mach exception.
(urk I meant to write `>= 2`)


Repository:
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  https://reviews.llvm.org/D147820/new/

https://reviews.llvm.org/D147820