1 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 # TODO(brettw) Use "gcc_toolchain.gni" like the Linux toolchains. This requires
6 # some enhancements since the commands on Mac are slightly different than on
10 import("//build/config/ios/ios_sdk.gni")
12 assert(host_os == "mac")
14 import("//build/toolchain/clang.gni")
15 import("//build/toolchain/goma.gni")
18 goma_prefix = "$goma_dir/gomacc "
23 # This will copy the gyp-mac-tool to the build directory. We pass in the source
24 # file of the win tool.
26 rebase_path("//tools/gyp/pylib/gyp/mac_tool.py", root_build_dir)
27 exec_script("setup_toolchain.py", [ gyp_mac_tool_source ])
29 # Shared toolchain definition. Invocations should set toolchain_os to set the
30 # build args in this definition.
31 template("mac_toolchain") {
32 toolchain(target_name) {
33 assert(defined(invoker.cc), "mac_toolchain() must specify a \"cc\" value")
34 assert(defined(invoker.cxx), "mac_toolchain() must specify a \"cxx\" value")
35 assert(defined(invoker.ld), "mac_toolchain() must specify a \"ld\" value")
36 assert(defined(invoker.toolchain_cpu),
37 "mac_toolchain() must specify a \"toolchain_cpu\"")
38 assert(defined(invoker.toolchain_os),
39 "mac_toolchain() must specify a \"toolchain_os\"")
41 # We can't do string interpolation ($ in strings) on things with dots in
42 # them. To allow us to use $cc below, for example, we create copies of
43 # these values in our scope.
48 # Make these apply to all tools below.
53 depfile = "{{output}}.d"
54 command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} -c {{source}} -o {{output}}"
56 description = "CC {{output}}"
58 "{{target_out_dir}}/{{target_output_name}}/{{source_name_part}}.o",
63 depfile = "{{output}}.d"
64 command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} -c {{source}} -o {{output}}"
66 description = "CXX {{output}}"
68 "{{target_out_dir}}/{{target_output_name}}/{{source_name_part}}.o",
73 # For GCC we can just use the C compiler to compile assembly.
74 depfile = "{{output}}.d"
75 command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} -c {{source}} -o {{output}}"
77 description = "ASM {{output}}"
79 "{{target_out_dir}}/{{target_output_name}}/{{source_name_part}}.o",
84 depfile = "{{output}}.d"
85 command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} {{cflags_objc}} -c {{source}} -o {{output}}"
87 description = "OBJC {{output}}"
89 "{{target_out_dir}}/{{target_output_name}}/{{source_name_part}}.o",
94 depfile = "{{output}}.d"
95 command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} {{cflags_objcc}} -c {{source}} -o {{output}}"
97 description = "OBJCXX {{output}}"
99 "{{target_out_dir}}/{{target_output_name}}/{{source_name_part}}.o",
104 command = "rm -f {{output}} && ./gyp-mac-tool filter-libtool libtool -static -o {{output}} {{inputs}}"
105 description = "LIBTOOL-STATIC {{output}}"
107 "{{target_out_dir}}/{{target_output_name}}{{output_extension}}",
109 default_output_extension = ".a"
110 output_prefix = "lib"
114 dylib = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}" # eg "./libfoo.dylib"
115 rspfile = dylib + ".rsp"
117 # These variables are not built into GN but are helpers that implement
118 # (1) linking to produce a .so, (2) extracting the symbols from that file
119 # to a temporary file, (3) if the temporary file has differences from the
120 # existing .TOC file, overwrite it, otherwise, don't change it.
122 # As a special case, if the library reexports symbols from other dynamic
123 # libraries, we always update the .TOC and skip the temporary file and
124 # diffing steps, since that library always needs to be re-linked.
125 tocname = dylib + ".TOC"
126 temporary_tocname = dylib + ".tmp"
128 does_reexport_command = "[ ! -e $dylib -o ! -e $tocname ] || otool -l $dylib | grep -q LC_REEXPORT_DYLIB"
130 link_command = "$ld -shared {{ldflags}} -o $dylib -Wl,-filelist,$rspfile"
131 if (is_component_build) {
132 link_command += " -Wl,-install_name,@rpath/{{target_output_name}}{{output_extension}}"
134 link_command += " {{solibs}} {{libs}}"
136 replace_command = "if ! cmp -s $temporary_tocname $tocname; then mv $temporary_tocname $tocname"
137 extract_toc_command = "{ otool -l $dylib | grep LC_ID_DYLIB -A 5; nm -gP $dylib | cut -f1-2 -d' ' | grep -v U\$\$; true; }"
139 command = "if $does_reexport_command ; then $link_command && $extract_toc_command > $tocname; else $link_command && $extract_toc_command > $temporary_tocname && $replace_command ; fi; fi"
141 rspfile_content = "{{inputs_newline}}"
143 description = "SOLINK {{output}}"
145 # Use this for {{output_extension}} expansions unless a target manually
146 # overrides it (in which case {{output_extension}} will be what the target
148 default_output_extension = ".dylib"
150 output_prefix = "lib"
152 # Since the above commands only updates the .TOC file when it changes, ask
153 # Ninja to check if the timestamp actually changed to know if downstream
154 # dependencies should be recompiled.
157 # Tell GN about the output files. It will link to the dylib but use the
158 # tocname for dependency management.
164 depend_output = tocname
168 outfile = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}"
169 rspfile = "$outfile.rsp"
170 command = "$ld {{ldflags}} -o $outfile -Wl,-filelist,$rspfile {{solibs}} {{libs}}"
171 description = "LINK $outfile"
172 rspfile_content = "{{inputs_newline}}"
179 command = "touch {{output}}"
180 description = "STAMP {{output}}"
184 command = "ln -f {{source}} {{output}} 2>/dev/null || (rm -rf {{output}} && cp -af {{source}} {{output}})"
185 description = "COPY {{source}} {{output}}"
189 current_cpu = invoker.toolchain_cpu
190 current_os = invoker.toolchain_os
192 # These values need to be passed through unchanged.
193 target_os = target_os
194 target_cpu = target_cpu
196 if (defined(invoker.is_clang)) {
197 is_clang = invoker.is_clang
203 mac_toolchain("clang_arm") {
204 toolchain_cpu = "arm"
206 prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
208 cc = "${goma_prefix}$prefix/clang"
209 cxx = "${goma_prefix}$prefix/clang++"
214 mac_toolchain("ios_clang_arm") {
215 # TODO(GYP): Do we need ios_clang_armv7 and ios_clang_arm64 ?
216 toolchain_cpu = "arm"
219 # TODO(GYP): We need to support being able to use the version of clang
220 # shipped w/ XCode instead of the one pulled from upstream.
221 prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
223 cc = "${goma_prefix}$prefix/clang"
224 cxx = "${goma_prefix}$prefix/clang++"
229 mac_toolchain("arm") {
230 toolchain_cpu = "arm"
232 cc = "${goma_prefix}/gcc"
233 cxx = "${goma_prefix}/g++"
238 mac_toolchain("clang_x64") {
239 toolchain_cpu = "x64"
241 prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
243 cc = "${goma_prefix}$prefix/clang"
244 cxx = "${goma_prefix}$prefix/clang++"
249 mac_toolchain("x64") {
250 toolchain_cpu = "x64"
252 cc = "${goma_prefix}/gcc"
253 cxx = "${goma_prefix}/g++"