<rdar://problem/11782789> Changes to the watchpoint implementation on ARM so that we single-step before stopping at the WP. This is necessary because on ARM the WP triggers before the opcode is actually executed, so we would be unable to continue since we would keep hitting the WP. We work around this by disabling the WP, single stepping and then putting the WP back in place.
git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@160199 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
index 3f8677d..70d73d3 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
@@ -223,6 +223,11 @@
if (sub != LLDB_INVALID_CPUTYPE)
response.Printf ("cpusubtype:%u;", sub);
+ if (cpu == CPU_TYPE_ARM)
+ response.Printf("watchpoint_exceptions_received:before;"); // On armv7 we use "synchronous" watchpoints which means the exception is delivered before the instruction executes.
+ else
+ response.Printf("watchpoint_exceptions_received:after;");
+
switch (lldb::endian::InlHostByteOrder())
{
case eByteOrderBig: response.PutCString ("endian:big;"); break;