select.mk revision 994c84fb40fd74199feb1229e40acb538993c0f2 
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#	combo_2nd_arch_prefix -- it's defined if this is loaded for the 2nd arch.
22#
23
24# Build a target string like "linux-arm" or "darwin-x86".
25combo_os_arch := $($(combo_target)OS)-$($(combo_target)$(combo_2nd_arch_prefix)ARCH)
26
27combo_var_prefix := $(combo_2nd_arch_prefix)$(combo_target)
28
29# Set reasonable defaults for the various variables
30
31$(combo_var_prefix)CC := $(CC)
32$(combo_var_prefix)CXX := $(CXX)
33$(combo_var_prefix)AR := $(AR)
34$(combo_var_prefix)STRIP := $(STRIP)
35
36$(combo_var_prefix)BINDER_MINI := 0
37
38$(combo_var_prefix)HAVE_EXCEPTIONS := 0
39$(combo_var_prefix)HAVE_UNIX_FILE_PATH := 1
40$(combo_var_prefix)HAVE_WINDOWS_FILE_PATH := 0
41$(combo_var_prefix)HAVE_RTTI := 1
42$(combo_var_prefix)HAVE_CALL_STACKS := 1
43$(combo_var_prefix)HAVE_64BIT_IO := 1
44$(combo_var_prefix)HAVE_CLOCK_TIMERS := 1
45$(combo_var_prefix)HAVE_PTHREAD_RWLOCK := 1
46$(combo_var_prefix)HAVE_STRNLEN := 1
47$(combo_var_prefix)HAVE_STRERROR_R_STRRET := 1
48$(combo_var_prefix)HAVE_STRLCPY := 0
49$(combo_var_prefix)HAVE_STRLCAT := 0
50$(combo_var_prefix)HAVE_KERNEL_MODULES := 0
51
52$(combo_var_prefix)GLOBAL_CFLAGS := -fno-exceptions -Wno-multichar
53$(combo_var_prefix)RELEASE_CFLAGS := -O2 -g -fno-strict-aliasing
54$(combo_var_prefix)GLOBAL_CPPFLAGS :=
55$(combo_var_prefix)GLOBAL_LDFLAGS :=
56$(combo_var_prefix)GLOBAL_ARFLAGS := crsPD
57$(combo_var_prefix)GLOBAL_LD_DIRS :=
58
59$(combo_var_prefix)EXECUTABLE_SUFFIX :=
60$(combo_var_prefix)SHLIB_SUFFIX := .so
61$(combo_var_prefix)JNILIB_SUFFIX := $($(combo_var_prefix)SHLIB_SUFFIX)
62$(combo_var_prefix)STATIC_LIB_SUFFIX := .a
63
64# Now include the combo for this specific target.
65include $(BUILD_COMBOS)/$(combo_target)$(combo_os_arch).mk
66
67ifneq ($(USE_CCACHE),)
68  # The default check uses size and modification time, causing false misses
69  # since the mtime depends when the repo was checked out
70  export CCACHE_COMPILERCHECK := content
71
72  # See man page, optimizations to get more cache hits
73  # implies that __DATE__ and __TIME__ are not critical for functionality.
74  # Ignore include file modification time since it will depend on when
75  # the repo was checked out
76  export CCACHE_SLOPPINESS := time_macros,include_file_mtime,file_macro
77
78  # Turn all preprocessor absolute paths into relative paths.
79  # Fixes absolute paths in preprocessed source due to use of -g.
80  # We don't really use system headers much so the rootdir is
81  # fine; ensures these paths are relative for all Android trees
82  # on a workstation.
83  export CCACHE_BASEDIR := /
84
85  CCACHE_HOST_TAG := $(HOST_PREBUILT_TAG)
86  # If we are cross-compiling Windows binaries on Linux
87  # then use the linux ccache binary instead.
88  ifeq ($(HOST_OS)-$(BUILD_OS),windows-linux)
89    CCACHE_HOST_TAG := linux-$(HOST_PREBUILT_ARCH)
90  endif
91  ccache := prebuilts/misc/$(CCACHE_HOST_TAG)/ccache/ccache
92  # Check that the executable is here.
93  ccache := $(strip $(wildcard $(ccache)))
94  ifdef ccache
95    CC_WRAPPER ?= $(ccache)
96    CXX_WRAPPER ?= $(ccache)
97    ccache =
98  endif
99endif
100
101# The C/C++ compiler can be wrapped by setting the CC/CXX_WRAPPER vars.
102ifdef CC_WRAPPER
103  ifneq ($(CC_WRAPPER),$(firstword $($(combo_var_prefix)CC)))
104    $(combo_var_prefix)CC := $(CC_WRAPPER) $($(combo_var_prefix)CC)
105  endif
106endif
107ifdef CXX_WRAPPER
108  ifneq ($(CXX_WRAPPER),$(firstword $($(combo_var_prefix)CXX)))
109    $(combo_var_prefix)CXX := $(CXX_WRAPPER) $($(combo_var_prefix)CXX)
110  endif
111endif
112