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 # These definitions contain a few host-specific functions. I.e. they are 17 # typically used to generate shell commands during the build and their 18 # implementation will depend on the value of the HOST_OS variable. 19 # 20 21 # ----------------------------------------------------------------------------- 22 # Function : host-path 23 # Arguments: 1: file path 24 # Returns : file path, as understood by the host file system 25 # Usage : $(call host-path,<path>) 26 # Rationale: This function is used to translate Cygwin paths into 27 # Cygwin-specific ones. On other platforms, it will just 28 # return its argument. 29 # ----------------------------------------------------------------------------- 30 ifeq ($(HOST_OS),cygwin) 31 host-path = $(if $(strip $1),$(call cygwin-to-host-path,$1)) 32 else 33 host-path = $1 34 endif 35 36 # ----------------------------------------------------------------------------- 37 # Function : host-rm 38 # Arguments: 1: list of files 39 # Usage : $(call host-rm,<files>) 40 # Rationale: This function expands to the host-specific shell command used 41 # to remove some files. 42 # ----------------------------------------------------------------------------- 43 ifeq ($(HOST_OS),windows) 44 host-rm = \ 45 $(eval __host_rm_files := $(foreach __host_rm_file,$1,$(subst /,\,$(wildcard $(__host_rm_file)))))\ 46 $(if $(__host_rm_files),del /f/q $(__host_rm_files) >NUL 2>NUL) 47 else 48 host-rm = rm -f $1 49 endif 50 51 # ----------------------------------------------------------------------------- 52 # Function : host-rmdir 53 # Arguments: 1: list of files or directories 54 # Usage : $(call host-rm,<files>) 55 # Rationale: This function expands to the host-specific shell command used 56 # to remove some files _and_ directories. 57 # ----------------------------------------------------------------------------- 58 ifeq ($(HOST_OS),windows) 59 host-rmdir = \ 60 $(eval __host_rmdir_files := $(foreach __host_rmdir_file,$1,$(subst /,\,$(wildcard $(__host_rmdir_file)))))\ 61 $(if $(__host_rmdir_files),del /f/s/q $(__host_rmdir_files) >NUL 2>NUL) 62 else 63 host-rmdir = rm -rf $1 64 endif 65 66 # ----------------------------------------------------------------------------- 67 # Function : host-mkdir 68 # Arguments: 1: directory path 69 # Usage : $(call host-mkdir,<path> 70 # Rationale: This function expands to the host-specific shell command used 71 # to create a path if it doesn't exist. 72 # ----------------------------------------------------------------------------- 73 ifeq ($(HOST_OS),windows) 74 host-mkdir = md $(subst /,\,"$1") >NUL 2>NUL || rem 75 else 76 host-mkdir = mkdir -p $1 77 endif 78 79 # ----------------------------------------------------------------------------- 80 # Function : host-cp 81 # Arguments: 1: source file 82 # 2: target file 83 # Usage : $(call host-cp,<src-file>,<dst-file>) 84 # Rationale: This function expands to the host-specific shell command used 85 # to copy a single file 86 # ----------------------------------------------------------------------------- 87 ifeq ($(HOST_OS),windows) 88 host-cp = copy /b/y $(subst /,\,"$1" "$2") > NUL 89 else 90 host-cp = cp -f $1 $2 91 endif 92 93 # ----------------------------------------------------------------------------- 94 # Function : host-install 95 # Arguments: 1: source file 96 # 2: target file 97 # Usage : $(call host-install,<src-file>,<dst-file>) 98 # Rationale: This function expands to the host-specific shell command used 99 # to install a file or directory, while preserving its timestamps 100 # (if possible). 101 # ----------------------------------------------------------------------------- 102 ifeq ($(HOST_OS),windows) 103 host-install = copy /b/y $(subst /,\,"$1" "$2") > NUL 104 else 105 host-install = install -p $1 $2 106 endif 107 108 # ----------------------------------------------------------------------------- 109 # Function : host-c-includes 110 # Arguments: 1: list of file paths (e.g. "foo bar") 111 # Returns : list of include compiler options (e.g. "-Ifoo -Ibar") 112 # Usage : $(call host-c-includes,<paths>) 113 # Rationale: This function is used to translate Cygwin paths into 114 # Cygwin-specific ones. On other platforms, it will just 115 # return its argument. 116 # ----------------------------------------------------------------------------- 117 ifeq ($(HOST_OS),cygwin) 118 host-c-includes = $(patsubst %,-I%,$(call host-path,$1)) 119 else 120 host-c-includes = $(1:%=-I%) 121 endif 122 123 # ----------------------------------------------------------------------------- 124 # Function : host-copy-if-differ 125 # Arguments: 1: source file 126 # 2: destination file 127 # Usage : $(call host-copy-if-differ,<src-file>,<dst-file>) 128 # Rationale: This function copy source file to destination file if contents are 129 # different. 130 # ----------------------------------------------------------------------------- 131 ifeq ($(HOST_OS),windows) 132 host-copy-if-differ = $(HOST_CMP) -s $1 $2 > NUL || copy /b/y $(subst /,\,"$1" "$2") > NUL 133 else 134 host-copy-if-differ = $(HOST_CMP) -s $1 $2 > /dev/null 2>&1 || cp -f $1 $2 135 endif 136 137 138 # ----------------------------------------------------------------------------- 139 # Function : host-path-is-absolute 140 # Arguments: 1: file path 141 # Usage : $(call host-path-is-absolute,<path>) 142 # Rationale: This function returns a non-empty result if the input path is 143 # absolute on the host filesystem. 144 # ----------------------------------------------------------------------------- 145 146 # On Windows, we need to take care drive prefix in file paths, e.g.: 147 # /foo -> top-level 'foo' directory on current drive. 148 # //bar/foo -> top-level 'foo' on network share 'bar' 149 # c:/foo -> top-level 'foo' directory on C drive. 150 # c:foo -> 'foo' subdirectory on C drive's current directory. 151 # 152 # Treat all of them as absolute. Filtering the first two cases is easy 153 # by simply looking at the first character. The other ones are more 154 # complicated and the simplest way is still to try all alphabet letters 155 # directly. Anything else involves very complicated GNU Make parsing 156 # voodoo. 157 ndk-windows-drive-letters := a b c d e f g h i j k l m n o p q r s t u v w x y z \ 158 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 159 160 ndk-windows-drive-patterns := $(foreach _drive,$(ndk-windows-drive-letters),$(_drive):%) 161 162 windows-path-is-absolute = $(if $(filter /% $(ndk-windows-drive-patterns),$(subst \,/,$1)),true) 163 164 ifeq ($(HOST_OS),windows) 165 host-path-is-absolute = $(call windows-path-is-absolute,$1) 166 else 167 host-path-is-absolute = $(if $(filter /%,$1),true) 168 endif 169 170 -test-host-path-is-absolute.relative-paths = \ 171 $(call test-expect,,$(call host-path-is-absolute,foo))\ 172 $(call test-expect,,$(call host-path-is-absolute,foo/bar))\ 173 $(call test-expect,,$(call host-path-is-absolute,.))\ 174 $(call test-expect,,$(call host-path-is-absolute,..)) 175 176 -test-host-path-is-absolute.absolute-paths = \ 177 $(call test-expect,true,$(call host-path-is-absolute,/))\ 178 $(call test-expect,true,$(call host-path-is-absolute,/foo))\ 179 $(call test-expect,true,$(call host-path-is-absolute,/foo/bar))\ 180 $(call test-expect,true,$(call host-path-is-absolute,//foo))\ 181 $(call test-expect,true,$(call host-path-is-absolute,/.)) 182 183 -test-host-path-is-asbolute.windows-relative-paths = \ 184 $(call test-expect,$(call windows-path-is-absolute,foo))\ 185 $(call test-expect,$(call windows-path-is-absolute,foo/bar))\ 186 $(call test-expect,$(call windows-path-is-absolute,.))\ 187 $(call test-expect,$(call windows-path-is-absolute,..)) 188 189 -test-host-path-is-asbolute.windows-absolute-paths = \ 190 $(call test-expect,true,$(call windows-path-is-absolute,c:/))\ 191 $(call test-expect,true,$(call windows-path-is-absolute,x:))\ 192 $(call test-expect,true,$(call windows-path-is-absolute,K:foo))\ 193 $(call test-expect,true,$(call windows-path-is-absolute,C:\Foo\Bar))\ 194 $(call test-expect,true,$(call windows-path-is-absolute,\Foo)) 195
