- Porting of address santizer patch for ARM in gcc-4.8.1 from gcc-4.9 - Taken from...

[platform/upstream/gcc48.git] / gcc / config / arm / arm.c

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index d787a6e..9124da8 100644 (file)
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -280,6 +280,7 @@ static unsigned arm_add_stmt_cost (void *data, int count,
 
 static void arm_canonicalize_comparison (int *code, rtx *op0, rtx *op1,
                                         bool op0_preserve_value);
+static unsigned HOST_WIDE_INT arm_asan_shadow_offset (void);
 \f
 /* Table of machine attributes.  */
 static const struct attribute_spec arm_attribute_table[] =
@@ -649,6 +650,9 @@ static const struct attribute_spec arm_attribute_table[] =
 #define TARGET_CANONICALIZE_COMPARISON \
   arm_canonicalize_comparison
 
+#undef TARGET_ASAN_SHADOW_OFFSET
+#define TARGET_ASAN_SHADOW_OFFSET arm_asan_shadow_offset
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 \f
 /* Obstack for minipool constant handling.  */
@@ -27435,4 +27439,12 @@ arm_validize_comparison (rtx *comparison, rtx * op1, rtx * op2)
 
 }
 
+/* Implement the TARGET_ASAN_SHADOW_OFFSET hook.  */
+
+static unsigned HOST_WIDE_INT
+arm_asan_shadow_offset (void)
+{
+  return (unsigned HOST_WIDE_INT) 1 << 29;
+}
+
 #include "gt-arm.h"