select.mk revision b2f39181c6998661cd1146d77baa892d60e3d6c3 
1#
2# Copyright (C) 2006 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16
17# Select a combo based on the compiler being used.
18#
19# Inputs:
20#	combo_target -- prefix for final variables (HOST_ or TARGET_)
21#
22
23# Build a target string like "linux-arm" or "darwin-x86".
24combo_os_arch := $($(combo_target)OS)-$($(combo_target)ARCH)
25
26# Set reasonable defaults for the various variables
27
28$(combo_target)CC := $(CC)
29$(combo_target)CXX := $(CXX)
30$(combo_target)AR := $(AR)
31$(combo_target)STRIP := $(STRIP)
32
33$(combo_target)BINDER_MINI := 0
34
35$(combo_target)HAVE_EXCEPTIONS := 0
36$(combo_target)HAVE_UNIX_FILE_PATH := 1
37$(combo_target)HAVE_WINDOWS_FILE_PATH := 0
38$(combo_target)HAVE_RTTI := 1
39$(combo_target)HAVE_CALL_STACKS := 1
40$(combo_target)HAVE_64BIT_IO := 1
41$(combo_target)HAVE_CLOCK_TIMERS := 1
42$(combo_target)HAVE_PTHREAD_RWLOCK := 1
43$(combo_target)HAVE_STRNLEN := 1
44$(combo_target)HAVE_STRERROR_R_STRRET := 1
45$(combo_target)HAVE_STRLCPY := 0
46$(combo_target)HAVE_STRLCAT := 0
47$(combo_target)HAVE_KERNEL_MODULES := 0
48
49$(combo_target)GLOBAL_CFLAGS := -fno-exceptions -Wno-multichar
50$(combo_target)RELEASE_CFLAGS := -O2 -g -fno-strict-aliasing
51$(combo_target)GLOBAL_LDFLAGS :=
52$(combo_target)GLOBAL_ARFLAGS := crsPD
53
54$(combo_target)EXECUTABLE_SUFFIX :=
55$(combo_target)SHLIB_SUFFIX := .so
56$(combo_target)JNILIB_SUFFIX := $($(combo_target)SHLIB_SUFFIX)
57$(combo_target)STATIC_LIB_SUFFIX := .a
58
59# Now include the combo for this specific target.
60include $(BUILD_COMBOS)/$(combo_target)$(combo_os_arch).mk
61
62ifneq ($(USE_CCACHE),)
63  # The default check uses size and modification time, causing false misses
64  # since the mtime depends when the repo was checked out
65  export CCACHE_COMPILERCHECK := content
66
67  # See man page, optimizations to get more cache hits
68  # implies that __DATE__ and __TIME__ are not critical for functionality.
69  # Ignore include file modification time since it will depend on when
70  # the repo was checked out
71  export CCACHE_SLOPPINESS := time_macros,include_file_mtime,file_macro
72
73  # Turn all preprocessor absolute paths into relative paths.
74  # Fixes absolute paths in preprocessed source due to use of -g.
75  # We don't really use system headers much so the rootdir is
76  # fine; ensures these paths are relative for all Android trees
77  # on a workstation.
78  export CCACHE_BASEDIR := /
79
80  CCACHE_HOST_TAG := $(HOST_PREBUILT_TAG)
81  # If we are cross-compiling Windows binaries on Linux
82  # then use the linux ccache binary instead.
83  ifeq ($(HOST_OS)-$(BUILD_OS),windows-linux)
84    CCACHE_HOST_TAG := linux-$(BUILD_ARCH)
85  endif
86  ccache := prebuilts/misc/$(CCACHE_HOST_TAG)/ccache/ccache
87  # Check that the executable is here.
88  ccache := $(strip $(wildcard $(ccache)))
89  ifdef ccache
90    # prepend ccache if necessary
91    ifneq ($(ccache),$(firstword $($(combo_target)CC)))
92      $(combo_target)CC := $(ccache) $($(combo_target)CC)
93    endif
94    ifneq ($(ccache),$(firstword $($(combo_target)CXX)))
95      $(combo_target)CXX := $(ccache) $($(combo_target)CXX)
96    endif
97    ccache =
98  endif
99endif
100