commit 1109fb3cacc8bb667979780c2b4b12ce5bb64549
author David Srbecky <dsrbecky@google.com> Tue Apr 07 20:21:06 2015 +0100
committer David Srbecky <dsrbecky@google.com> Wed Apr 08 15:08:07 2015 +0100
tree 00b38dbb7d7cf173bb376ed0b87d015dc09a6559
parent cde8e5da3e774a2494b051043130c0495eca09ef

Implement CFI for Quick.

CFI is necessary for stack unwinding in gdb, lldb, and libunwind.

Change-Id: Ic3b84c9dc91c4bae80e27cda02190f3274e95ae8

compiler/dex/quick/mir_to_lir.cc

diff --git a/compiler/dex/quick/mir_to_lir.cc b/compiler/dex/quick/mir_to_lir.cc
index ed8e21e..961cd4f 100644
--- a/compiler/dex/quick/mir_to_lir.cc
+++ b/compiler/dex/quick/mir_to_lir.cc
@@ -1253,11 +1253,14 @@
     AppendLIR(NewLIR0(kPseudoPrologueBegin));
     GenEntrySequence(&mir_graph_->reg_location_[start_vreg], mir_graph_->GetMethodLoc());
     AppendLIR(NewLIR0(kPseudoPrologueEnd));
+    DCHECK_EQ(cfi_.GetCurrentCFAOffset(), frame_size_);
   } else if (bb->block_type == kExitBlock) {
     ResetRegPool();
+    DCHECK_EQ(cfi_.GetCurrentCFAOffset(), frame_size_);
     AppendLIR(NewLIR0(kPseudoEpilogueBegin));
     GenExitSequence();
     AppendLIR(NewLIR0(kPseudoEpilogueEnd));
+    DCHECK_EQ(cfi_.GetCurrentCFAOffset(), frame_size_);
   }
 
   for (mir = bb->first_mir_insn; mir != NULL; mir = mir->next) {