1# Copyright (C) 2014 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-3.5
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 := 3.5
31LLVM_NAME := llvm-$(LLVM_VERSION)
32LLVM_TOOLCHAIN_ROOT := $(NDK_ROOT)/toolchains/$(LLVM_NAME)
33LLVM_TOOLCHAIN_PREBUILT_ROOT := $(call host-prebuilt-tag,$(LLVM_TOOLCHAIN_ROOT))
34LLVM_TOOLCHAIN_PREFIX := $(LLVM_TOOLCHAIN_PREBUILT_ROOT)/bin/
35
36TOOLCHAIN_VERSION := 4.8
37TOOLCHAIN_NAME := x86-$(TOOLCHAIN_VERSION)
38TOOLCHAIN_ROOT := $(NDK_ROOT)/toolchains/$(TOOLCHAIN_NAME)
39TOOLCHAIN_PREBUILT_ROOT := $(call host-prebuilt-tag,$(TOOLCHAIN_ROOT))
40TOOLCHAIN_PREFIX := $(TOOLCHAIN_PREBUILT_ROOT)/bin/i686-linux-android-
41
42TARGET_CC := $(LLVM_TOOLCHAIN_PREFIX)clang$(HOST_EXEEXT)
43TARGET_CXX := $(LLVM_TOOLCHAIN_PREFIX)clang++$(HOST_EXEEXT)
44
45LLVM_TRIPLE := i686-none-linux-android
46
47TARGET_CFLAGS := \
48    -gcc-toolchain $(call host-path,$(TOOLCHAIN_PREBUILT_ROOT)) \
49    -target $(LLVM_TRIPLE) \
50    -ffunction-sections \
51    -funwind-tables \
52    -fstack-protector-strong \
53    -fPIC \
54    -Wno-invalid-command-line-argument \
55    -Wno-unused-command-line-argument \
56    -no-canonical-prefixes
57
58TARGET_C_INCLUDES := \
59    $(SYSROOT_INC)/usr/include
60
61# Add and LDFLAGS for the target here
62TARGET_LDFLAGS += \
63    -gcc-toolchain $(call host-path,$(TOOLCHAIN_PREBUILT_ROOT)) \
64    -target $(LLVM_TRIPLE) \
65    -no-canonical-prefixes
66
67TARGET_x86_release_CFLAGS := -O2 \
68                             -g \
69                             -DNDEBUG \
70                             -fomit-frame-pointer \
71                             -fstrict-aliasing
72
73# When building for debug, compile everything as x86.
74TARGET_x86_debug_CFLAGS := $(TARGET_x86_release_CFLAGS) \
75                           -O0 \
76                           -UNDEBUG \
77                           -fno-omit-frame-pointer \
78                           -fno-strict-aliasing
79
80# This function will be called to determine the target CFLAGS used to build
81# a C or Assembler source file, based on its tags.
82#
83TARGET-process-src-files-tags = \
84$(eval __debug_sources := $(call get-src-files-with-tag,debug)) \
85$(eval __release_sources := $(call get-src-files-without-tag,debug)) \
86$(call set-src-files-target-cflags, $(__debug_sources), $(TARGET_x86_debug_CFLAGS)) \
87$(call set-src-files-target-cflags, $(__release_sources),$(TARGET_x86_release_CFLAGS)) \
88
89# The ABI-specific sub-directory that the SDK tools recognize for
90# this toolchain's generated binaries
91TARGET_ABI_SUBDIR := x86
92