Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 79 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/asan.h b/gcc-4.9/gcc/asan.h
new file mode 100644
index 000000000..08d5063c9
--- /dev/null
+++ b/gcc-4.9/gcc/asan.h
@@ -0,0 +1,79 @@
+/* AddressSanitizer, a fast memory error detector.
+   Copyright (C) 2011-2014 Free Software Foundation, Inc.
+   Contributed by Kostya Serebryany <kcc@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef TREE_ASAN
+#define TREE_ASAN
+
+extern void asan_function_start (void);
+extern void asan_finish_file (void);
+extern rtx asan_emit_stack_protection (rtx, rtx, unsigned int, HOST_WIDE_INT *,
+				       tree *, int);
+extern bool asan_protect_global (tree);
+extern void initialize_sanitizer_builtins (void);
+extern tree asan_dynamic_init_call (bool);
+
+extern gimple_stmt_iterator create_cond_insert_point
+     (gimple_stmt_iterator *, bool, bool, bool, basic_block *, basic_block *);
+
+/* Alias set for accessing the shadow memory.  */
+extern alias_set_type asan_shadow_set;
+
+/* Shadow memory is found at
+   (address >> ASAN_SHADOW_SHIFT) + targetm.asan_shadow_offset ().  */
+#define ASAN_SHADOW_SHIFT	3
+
+/* Red zone size, stack and global variables are padded by ASAN_RED_ZONE_SIZE
+   up to 2 * ASAN_RED_ZONE_SIZE - 1 bytes.  */
+#define ASAN_RED_ZONE_SIZE	32
+
+/* Shadow memory values for stack protection.  Left is below protected vars,
+   the first pointer in stack corresponding to that offset contains
+   ASAN_STACK_FRAME_MAGIC word, the second pointer to a string describing
+   the frame.  Middle is for padding in between variables, right is
+   above the last protected variable and partial immediately after variables
+   up to ASAN_RED_ZONE_SIZE alignment.  */
+#define ASAN_STACK_MAGIC_LEFT		0xf1
+#define ASAN_STACK_MAGIC_MIDDLE		0xf2
+#define ASAN_STACK_MAGIC_RIGHT		0xf3
+#define ASAN_STACK_MAGIC_PARTIAL	0xf4
+#define ASAN_STACK_MAGIC_USE_AFTER_RET	0xf5
+
+#define ASAN_STACK_FRAME_MAGIC		0x41b58ab3
+#define ASAN_STACK_RETIRED_MAGIC	0x45e0360e
+
+/* Return true if DECL should be guarded on the stack.  */
+
+static inline bool
+asan_protect_stack_decl (tree decl)
+{
+  return DECL_P (decl) && !DECL_ARTIFICIAL (decl);
+}
+
+/* Return the size of padding needed to insert after a protected
+   decl of SIZE.  */
+
+static inline unsigned int
+asan_red_zone_size (unsigned int size)
+{
+  unsigned int c = size & (ASAN_RED_ZONE_SIZE - 1);
+  return c ? 2 * ASAN_RED_ZONE_SIZE - c : ASAN_RED_ZONE_SIZE;
+}
+
+#endif /* TREE_ASAN */