ART: Throw StackOverflowError in native code

Initialize stack-overflow errors in native code to be able to reduce
the preserved area size of the stack.

Includes a refactoring away from constexpr in instruction_set.h to allow
for easy changing of the values.

Change-Id: I117cc8485f43da5f0a470f0f5e5b3dc3b5a06246

3 files changed, 13 insertions, 25 deletions

diff --git a/compiler/dex/quick/arm/call_arm.cc b/compiler/dex/quick/arm/call_arm.cc
index 6b96e929a..5059c5fc9 100644
--- a/compiler/dex/quick/arm/call_arm.cc
+++ b/compiler/dex/quick/arm/call_arm.cc
@@ -358,7 +358,7 @@ void ArmMir2Lir::GenEntrySequence(RegLocation* ArgLocs, RegLocation rl_method) {
    */
   bool skip_overflow_check = mir_graph_->MethodIsLeaf() && !IsLargeFrame(frame_size_, kArm);
   NewLIR0(kPseudoMethodEntry);
-  constexpr size_t kStackOverflowReservedUsableBytes = kArmStackOverflowReservedBytes -
+  const size_t kStackOverflowReservedUsableBytes = GetStackOverflowReservedBytes(kArm) -
       Thread::kStackOverflowSignalReservedBytes;
   bool large_frame = (static_cast<size_t>(frame_size_) > kStackOverflowReservedUsableBytes);
   if (!skip_overflow_check) {
@@ -381,7 +381,7 @@ void ArmMir2Lir::GenEntrySequence(RegLocation* ArgLocs, RegLocation rl_method) {
       // This is done before the callee save instructions to avoid any possibility
       // of these overflowing.  This uses r12 and that's never saved in a callee
       // save.
-      OpRegRegImm(kOpSub, rs_r12, rs_rARM_SP, kArmStackOverflowReservedBytes);
+      OpRegRegImm(kOpSub, rs_r12, rs_rARM_SP, GetStackOverflowReservedBytes(kArm));
       Load32Disp(rs_r12, 0, rs_r12);
       MarkPossibleStackOverflowException();
     }
diff --git a/compiler/dex/quick/arm64/call_arm64.cc b/compiler/dex/quick/arm64/call_arm64.cc
index d946ee39e..5e95500b2 100644
--- a/compiler/dex/quick/arm64/call_arm64.cc
+++ b/compiler/dex/quick/arm64/call_arm64.cc
@@ -330,8 +330,8 @@ void Arm64Mir2Lir::GenEntrySequence(RegLocation* ArgLocs, RegLocation rl_method)
 
   NewLIR0(kPseudoMethodEntry);
 
-  constexpr size_t kStackOverflowReservedUsableBytes = kArm64StackOverflowReservedBytes -
-        Thread::kStackOverflowSignalReservedBytes;
+  const size_t kStackOverflowReservedUsableBytes = GetStackOverflowReservedBytes(kArm64) -
+      Thread::kStackOverflowSignalReservedBytes;
   const bool large_frame = static_cast<size_t>(frame_size_) > kStackOverflowReservedUsableBytes;
   const int spill_count = num_core_spills_ + num_fp_spills_;
   const int spill_size = (spill_count * kArm64PointerSize + 15) & ~0xf;  // SP 16 byte alignment.
diff --git a/compiler/dex/quick/mir_to_lir.h b/compiler/dex/quick/mir_to_lir.h
index 512849f25..c7fafcb9b 100644
--- a/compiler/dex/quick/mir_to_lir.h
+++ b/compiler/dex/quick/mir_to_lir.h
@@ -214,32 +214,20 @@ static constexpr size_t kLargeFrameSize = 2 * KB;
 // The constant is from experience with frameworks code.
 static constexpr size_t kSmallFrameSize = 1 * KB;
 
-// Determine whether a frame is small or large, used in the decision on whether to elide a
-// stack overflow check on method entry.
-//
-// A frame is considered large when it's either above kLargeFrameSize, or a quarter of the
-// overflow-usable stack space.
-static constexpr bool IsLargeFrame(size_t size, InstructionSet isa) {
-  return size >= kLargeFrameSize || size >= GetStackOverflowReservedBytes(isa) / 4;
-}
-
-// We want to ensure that on all systems kSmallFrameSize will lead to false in IsLargeFrame.
-COMPILE_ASSERT(!IsLargeFrame(kSmallFrameSize, kArm),
-               kSmallFrameSize_is_not_a_small_frame_arm);
-COMPILE_ASSERT(!IsLargeFrame(kSmallFrameSize, kArm64),
-               kSmallFrameSize_is_not_a_small_frame_arm64);
-COMPILE_ASSERT(!IsLargeFrame(kSmallFrameSize, kMips),
-               kSmallFrameSize_is_not_a_small_frame_mips);
-COMPILE_ASSERT(!IsLargeFrame(kSmallFrameSize, kX86),
-               kSmallFrameSize_is_not_a_small_frame_x86);
-COMPILE_ASSERT(!IsLargeFrame(kSmallFrameSize, kX86_64),
-               kSmallFrameSize_is_not_a_small_frame_x64_64);
-
 class Mir2Lir : public Backend {
   public:
     static constexpr bool kFailOnSizeError = true && kIsDebugBuild;
     static constexpr bool kReportSizeError = true && kIsDebugBuild;
 
+    // Determine whether a frame is small or large, used in the decision on whether to elide a
+    // stack overflow check on method entry.
+    //
+    // A frame is considered large when it's either above kLargeFrameSize, or a quarter of the
+    // overflow-usable stack space.
+    static bool IsLargeFrame(size_t size, InstructionSet isa) {
+      return size >= kLargeFrameSize || size >= GetStackOverflowReservedBytes(isa) / 4;
+    }
+
     /*
      * Auxiliary information describing the location of data embedded in the Dalvik
      * byte code stream.