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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 arm gcc-4.7
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
26TARGET_CFLAGS := \
27    -fpic \
28    -ffunction-sections \
29    -funwind-tables \
30    -fstack-protector \
31    -no-canonical-prefixes
32
33TARGET_LDFLAGS := -no-canonical-prefixes
34
35TARGET_C_INCLUDES := \
36    $(SYSROOT_INC)/usr/include
37
38ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
39    TARGET_CFLAGS += -march=armv7-a \
40                     -mfloat-abi=softfp \
41                     -mfpu=vfpv3-d16
42
43    TARGET_LDFLAGS += -march=armv7-a \
44                     -Wl,--fix-cortex-a8
45else
46    TARGET_CFLAGS += -march=armv5te \
47                            -mtune=xscale \
48                            -msoft-float
49endif
50
51TARGET_CFLAGS.neon := -mfpu=neon
52
53TARGET_arm_release_CFLAGS :=  -O2 \
54                              -g \
55                              -DNDEBUG \
56                              -fomit-frame-pointer \
57                              -fstrict-aliasing    \
58                              -funswitch-loops     \
59                              -finline-limit=300
60
61TARGET_thumb_release_CFLAGS := -mthumb \
62                               -Os \
63                               -g \
64                               -DNDEBUG \
65                               -fomit-frame-pointer \
66                               -fno-strict-aliasing \
67                               -finline-limit=64
68
69# When building for debug, compile everything as arm.
70TARGET_arm_debug_CFLAGS := $(TARGET_arm_release_CFLAGS) \
71                           -O0 \
72                           -UNDEBUG \
73                           -fno-omit-frame-pointer \
74                           -fno-strict-aliasing
75
76TARGET_thumb_debug_CFLAGS := $(TARGET_thumb_release_CFLAGS) \
77                             -O0 \
78                             -UNDEBUG \
79                             -marm \
80                             -fno-omit-frame-pointer
81
82# This function will be called to determine the target CFLAGS used to build
83# a C or Assembler source file, based on its tags.
84#
85TARGET-process-src-files-tags = \
86$(eval __arm_sources := $(call get-src-files-with-tag,arm)) \
87$(eval __thumb_sources := $(call get-src-files-without-tag,arm)) \
88$(eval __debug_sources := $(call get-src-files-with-tag,debug)) \
89$(eval __release_sources := $(call get-src-files-without-tag,debug)) \
90$(call set-src-files-target-cflags, \
91    $(call set_intersection,$(__arm_sources),$(__debug_sources)), \
92    $(TARGET_arm_debug_CFLAGS)) \
93$(call set-src-files-target-cflags,\
94    $(call set_intersection,$(__arm_sources),$(__release_sources)),\
95    $(TARGET_arm_release_CFLAGS)) \
96$(call set-src-files-target-cflags,\
97    $(call set_intersection,$(__arm_sources),$(__debug_sources)),\
98    $(TARGET_arm_debug_CFLAGS)) \
99$(call set-src-files-target-cflags,\
100    $(call set_intersection,$(__thumb_sources),$(__release_sources)),\
101    $(TARGET_thumb_release_CFLAGS)) \
102$(call set-src-files-target-cflags,\
103    $(call set_intersection,$(__thumb_sources),$(__debug_sources)),\
104    $(TARGET_thumb_debug_CFLAGS)) \
105$(call add-src-files-target-cflags,\
106    $(call get-src-files-with-tag,neon),\
107    $(TARGET_CFLAGS.neon)) \
108$(call set-src-files-text,$(__arm_sources),arm$(space)$(space)) \
109$(call set-src-files-text,$(__thumb_sources),thumb)
110