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1# Copyright (C) 2009 The Android Open Source Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#      http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14#
15
16# this file is used to prepare the NDK to build with the x86 llvm-3.1
17# toolchain any number of source files
18#
19# its purpose is to define (or re-define) templates used to build
20# various sources into target object files, libraries or executables.
21#
22# Note that this file may end up being parsed several times in future
23# revisions of the NDK.
24#
25
26#
27# Override the toolchain prefix
28#
29
30LLVM_VERSION := 3.1
31LLVM_NAME := llvm-$(LLVM_VERSION)
32LLVM_TOOLCHAIN_ROOT := $(NDK_ROOT)/toolchains/$(LLVM_NAME)
33LLVM_TOOLCHAIN_PREBUILT_ROOT := $(LLVM_TOOLCHAIN_ROOT)/prebuilt/$(HOST_TAG)
34LLVM_TOOLCHAIN_PREFIX := $(LLVM_TOOLCHAIN_PREBUILT_ROOT)/bin/
35
36TOOLCHAIN_VERSION := 4.6
37TOOLCHAIN_NAME := x86-$(TOOLCHAIN_VERSION)
38TOOLCHAIN_ROOT := $(NDK_ROOT)/toolchains/$(TOOLCHAIN_NAME)
39TOOLCHAIN_PREBUILT_ROOT := $(TOOLCHAIN_ROOT)/prebuilt/$(HOST_TAG)
40TOOLCHAIN_PREFIX := $(TOOLCHAIN_PREBUILT_ROOT)/bin/i686-linux-android-
41
42TARGET_CC := $(LLVM_TOOLCHAIN_PREFIX)clang
43TARGET_CXX := $(LLVM_TOOLCHAIN_PREFIX)clang++
44
45LLVM_TRIPLE := i686-none-linux-android
46
47TARGET_CFLAGS := \
48    -B$(TOOLCHAIN_PREBUILT_ROOT) \
49    -target $(LLVM_TRIPLE) \
50    -ffunction-sections \
51    -funwind-tables \
52    -fno-builtin \
53    -fstack-protector \
54    -fPIC
55
56TARGET_C_INCLUDES := \
57    $(SYSROOT)/usr/include
58
59# Add and LDFLAGS for the target here
60TARGET_LDFLAGS := \
61    -B$(TOOLCHAIN_PREBUILT_ROOT) \
62    -target $(LLVM_TRIPLE)
63
64TARGET_x86_release_CFLAGS :=  -O2 \
65                              -fomit-frame-pointer \
66                              -fstrict-aliasing
67
68# When building for debug, compile everything as x86.
69TARGET_x86_debug_CFLAGS := $(TARGET_x86_release_CFLAGS) \
70                           -fno-omit-frame-pointer \
71                           -fno-strict-aliasing
72
73# This function will be called to determine the target CFLAGS used to build
74# a C or Assembler source file, based on its tags.
75#
76TARGET-process-src-files-tags = \
77$(eval __debug_sources := $(call get-src-files-with-tag,debug)) \
78$(eval __release_sources := $(call get-src-files-without-tag,debug)) \
79$(call set-src-files-target-cflags, $(__debug_sources), $(TARGET_x86_debug_CFLAGS)) \
80$(call set-src-files-target-cflags, $(__release_sources),$(TARGET_x86_release_CFLAGS)) \
81$(call set-src-files-text,$(LOCAL_SRC_FILES),x86$(space)$(space)) \
82
83# The ABI-specific sub-directory that the SDK tools recognize for
84# this toolchain's generated binaries
85TARGET_ABI_SUBDIR := x86
86