From 2dd469e18ca4921d1bf26b55e70a90225b114561 Mon Sep 17 00:00:00 2001
From: Ruslan Baratov <ruslan_baratov@yahoo.com>
Date: Wed, 28 Sep 2016 13:52:57 +0300
Subject: [PATCH] Add 'osx-10-11-sanitize-address' (Xcode) toolchain

---
 bin/detail/toolchain_table.py    |  1 +
 flags/sanitize_address.cmake     | 35 ++++++++++++++++++++++++++++++++
 osx-10-11-sanitize-address.cmake | 30 +++++++++++++++++++++++++++
 3 files changed, 66 insertions(+)
 create mode 100644 osx-10-11-sanitize-address.cmake

diff --git a/bin/detail/toolchain_table.py b/bin/detail/toolchain_table.py
index 7c69d375..339d013e 100644
--- a/bin/detail/toolchain_table.py
+++ b/bin/detail/toolchain_table.py
@@ -292,6 +292,7 @@ def verify(self):
       Toolchain('osx-10-11', 'Xcode', osx_version='10.11'),
       Toolchain('osx-10-10-dep-10-7', 'Xcode', osx_version='10.10'),
       Toolchain('osx-10-10-dep-10-9-make', 'Unix Makefiles'),
+      Toolchain('osx-10-11-sanitize-address', 'Xcode', osx_version='10.11'),
       Toolchain('linux-gcc-x64', 'Unix Makefiles'),
   ]
 
diff --git a/flags/sanitize_address.cmake b/flags/sanitize_address.cmake
index b6e08d96..8cf38dc7 100644
--- a/flags/sanitize_address.cmake
+++ b/flags/sanitize_address.cmake
@@ -8,6 +8,7 @@ else()
 endif()
 
 include(polly_add_cache_flag)
+include(polly_fatal_error)
 
 polly_add_cache_flag(CMAKE_CXX_FLAGS "-fsanitize=address")
 polly_add_cache_flag(CMAKE_CXX_FLAGS "-g")
@@ -32,3 +33,37 @@ set(
     "C compiler flags"
     FORCE
 )
+
+if(XCODE)
+  polly_add_cache_flag(CMAKE_C_FLAGS "-D_LIBCPP_HAS_NO_ASAN")
+  polly_add_cache_flag(CMAKE_CXX_FLAGS "-D_LIBCPP_HAS_NO_ASAN")
+
+  string(COMPARE EQUAL "${CMAKE_XCODE_ATTRIBUTE_CC}" "" _is_empty)
+  if(_is_empty)
+    polly_fatal_error("CMAKE_XCODE_ATTRIBUTE_CC is empty")
+  endif()
+
+  get_filename_component(_xcode_root "${CMAKE_XCODE_ATTRIBUTE_CC}" DIRECTORY)
+
+  set(_xcode_asan_lib_name "libclang_rt.asan_osx_dynamic")
+  set(
+      _xcode_asan_pattern
+      "${_xcode_root}/../lib/clang/*/lib/darwin/${_xcode_asan_lib_name}.dylib"
+  )
+
+  file(GLOB _xcode_asan_lib "${_xcode_asan_pattern}")
+  list(LENGTH _xcode_asan_lib _xcode_asan_lib_length)
+  if(_xcode_asan_lib_length EQUAL 1)
+    get_filename_component(_xcode_asan_lib "${_xcode_asan_lib}" ABSOLUTE)
+    get_filename_component(_xcode_asan_lib_dir "${_xcode_asan_lib}" DIRECTORY)
+    polly_status_debug("Using ASAN library:\n")
+    polly_status_debug("  * ${_xcode_asan_lib}")
+  elseif(_xcode_asan_lib_length EQUAL 0)
+    polly_fatal_error("File not found by pattern: ${_xcode_asan_pattern}")
+  else()
+    polly_fatal_error("Unexpected: '${_xcode_asan_lib}'")
+  endif()
+
+  polly_add_cache_flag(CMAKE_EXE_LINKER_FLAGS "${_xcode_asan_lib}")
+  polly_add_cache_flag(CMAKE_SHARED_LINKER_FLAGS "${_xcode_asan_lib}")
+endif()
diff --git a/osx-10-11-sanitize-address.cmake b/osx-10-11-sanitize-address.cmake
new file mode 100644
index 00000000..bd2fab04
--- /dev/null
+++ b/osx-10-11-sanitize-address.cmake
@@ -0,0 +1,30 @@
+# Copyright (c) 2016, Ruslan Baratov
+# All rights reserved.
+
+if(DEFINED POLLY_OSX_10_11_SANITIZE_ADDRESS_CMAKE_)
+  return()
+else()
+  set(POLLY_OSX_10_11_SANITIZE_ADDRESS_CMAKE_ 1)
+endif()
+
+include("${CMAKE_CURRENT_LIST_DIR}/utilities/polly_init.cmake")
+
+set(OSX_SDK_VERSION "10.11")
+set(POLLY_XCODE_COMPILER "clang")
+polly_init(
+    "Xcode (OS X ${OSX_SDK_VERSION}) / \
+${POLLY_XCODE_COMPILER} / \
+LLVM Standard C++ Library (libc++) / Clang address sanitizer / c++11 support"
+    "Xcode"
+)
+
+include("${CMAKE_CURRENT_LIST_DIR}/utilities/polly_common.cmake")
+
+include("${CMAKE_CURRENT_LIST_DIR}/compiler/xcode.cmake")
+
+set(CMAKE_OSX_DEPLOYMENT_TARGET "10.11" CACHE STRING "OS X Deployment target" FORCE)
+
+include("${CMAKE_CURRENT_LIST_DIR}/library/std/libcxx.cmake")
+include("${CMAKE_CURRENT_LIST_DIR}/flags/cxx11.cmake")
+include("${CMAKE_CURRENT_LIST_DIR}/os/osx.cmake")
+include("${CMAKE_CURRENT_LIST_DIR}/flags/sanitize_address.cmake")