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1 # Copyright (c) 2013 The Chromium Authors. All rights reserved. | 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 | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 # This value will be inherited in the toolchain below. | 5 # This value will be inherited in the toolchain below. |
6 concurrent_links = exec_script("get_concurrent_links.py", [], "value") | 6 concurrent_links = exec_script("get_concurrent_links.py", [], "value") |
7 | 7 |
8 # This template defines a toolchain for something that works like gcc | 8 # This template defines a toolchain for something that works like gcc |
9 # (including clang). | 9 # (including clang). |
10 # | 10 # |
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77 } else { | 77 } else { |
78 solink_libs_section_postfix = "" | 78 solink_libs_section_postfix = "" |
79 } | 79 } |
80 | 80 |
81 # These library switches can apply to all tools below. | 81 # These library switches can apply to all tools below. |
82 lib_switch = "-l" | 82 lib_switch = "-l" |
83 lib_dir_switch = "-L" | 83 lib_dir_switch = "-L" |
84 | 84 |
85 tool("cc") { | 85 tool("cc") { |
86 depfile = "{{output}}.d" | 86 depfile = "{{output}}.d" |
87 command = | 87 command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {
{cflags_c}} -c {{source}} -o {{output}}" |
88 "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflag
s_c}} -c {{source}} -o {{output}}" | |
89 depsformat = "gcc" | 88 depsformat = "gcc" |
90 description = "CC {{output}}" | 89 description = "CC {{output}}" |
91 outputs = | 90 outputs = [ |
92 [ "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o" ] | 91 "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o", |
| 92 ] |
93 } | 93 } |
94 | 94 |
95 tool("cxx") { | 95 tool("cxx") { |
96 depfile = "{{output}}.d" | 96 depfile = "{{output}}.d" |
97 command = | 97 command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}}
{{cflags_cc}} -c {{source}} -o {{output}}" |
98 "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cfla
gs_cc}} -c {{source}} -o {{output}}" | |
99 depsformat = "gcc" | 98 depsformat = "gcc" |
100 description = "CXX {{output}}" | 99 description = "CXX {{output}}" |
101 outputs = | 100 outputs = [ |
102 [ "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o" ] | 101 "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o", |
| 102 ] |
103 } | 103 } |
104 | 104 |
105 tool("asm") { | 105 tool("asm") { |
106 # For GCC we can just use the C compiler to compile assembly. | 106 # For GCC we can just use the C compiler to compile assembly. |
107 depfile = "{{output}}.d" | 107 depfile = "{{output}}.d" |
108 command = | 108 command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {
{cflags_c}} -c {{source}} -o {{output}}" |
109 "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflag
s_c}} -c {{source}} -o {{output}}" | |
110 depsformat = "gcc" | 109 depsformat = "gcc" |
111 description = "ASM {{output}}" | 110 description = "ASM {{output}}" |
112 outputs = | 111 outputs = [ |
113 [ "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o" ] | 112 "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o", |
| 113 ] |
114 } | 114 } |
115 | 115 |
116 tool("alink") { | 116 tool("alink") { |
117 rspfile = "{{output}}.rsp" | 117 rspfile = "{{output}}.rsp" |
118 command = "rm -f {{output}} && $ar rcs {{output}} @$rspfile" | 118 command = "rm -f {{output}} && $ar rcs {{output}} @$rspfile" |
119 description = "AR {{output}}" | 119 description = "AR {{output}}" |
120 rspfile_content = "{{inputs}}" | 120 rspfile_content = "{{inputs}}" |
121 outputs = | 121 outputs = [ |
122 [ "{{target_out_dir}}/{{target_output_name}}{{output_extension}}" ] | 122 "{{target_out_dir}}/{{target_output_name}}{{output_extension}}", |
| 123 ] |
123 default_output_extension = ".a" | 124 default_output_extension = ".a" |
124 output_prefix = "lib" | 125 output_prefix = "lib" |
125 } | 126 } |
126 | 127 |
127 tool("solink") { | 128 tool("solink") { |
128 soname = "{{target_output_name}}{{output_extension}}" # e.g. "libfoo.so". | 129 soname = "{{target_output_name}}{{output_extension}}" # e.g. "libfoo.so". |
129 sofile = "{{root_out_dir}}/$soname" # Possibly including toolchain dir. | 130 sofile = "{{root_out_dir}}/$soname" # Possibly including toolchain dir. |
130 rspfile = sofile + ".rsp" | 131 rspfile = sofile + ".rsp" |
131 | 132 |
132 # These variables are not built into GN but are helpers that implement | 133 # These variables are not built into GN but are helpers that implement |
133 # (1) linking to produce a .so, (2) extracting the symbols from that file | 134 # (1) linking to produce a .so, (2) extracting the symbols from that file |
134 # to a temporary file, (3) if the temporary file has differences from the | 135 # to a temporary file, (3) if the temporary file has differences from the |
135 # existing .TOC file, overwrite it, otherwise, don't change it. | 136 # existing .TOC file, overwrite it, otherwise, don't change it. |
136 tocfile = sofile + ".TOC" | 137 tocfile = sofile + ".TOC" |
137 temporary_tocname = sofile + ".tmp" | 138 temporary_tocname = sofile + ".tmp" |
138 link_command = | 139 link_command = |
139 "$ld -shared {{ldflags}} -o $sofile -Wl,-soname=$soname @$rspfile" | 140 "$ld -shared {{ldflags}} -o $sofile -Wl,-soname=$soname @$rspfile" |
140 toc_command = | 141 toc_command = "{ readelf -d $sofile | grep SONAME ; nm -gD -f p $soname |
cut -f1-2 -d' '; } > $temporary_tocname" |
141 "{ readelf -d $sofile | grep SONAME ; nm -gD -f p $soname | cut -f1-2
-d' '; } > $temporary_tocname" | 142 replace_command = "if ! cmp -s $temporary_tocname $tocfile; then mv $tempo
rary_tocname $tocfile; fi" |
142 replace_command = | |
143 "if ! cmp -s $temporary_tocname $tocfile; then mv $temporary_tocname $
tocfile; fi" | |
144 | 143 |
145 command = "$link_command && $toc_command && $replace_command" | 144 command = "$link_command && $toc_command && $replace_command" |
146 if (defined(invoker.postsolink)) { | 145 if (defined(invoker.postsolink)) { |
147 command += " && " + invoker.postsolink | 146 command += " && " + invoker.postsolink |
148 } | 147 } |
149 rspfile_content = | 148 rspfile_content = "-Wl,--whole-archive {{inputs}} {{solibs}} -Wl,--no-whol
e-archive $solink_libs_section_prefix {{libs}} $solink_libs_section_postfix" |
150 "-Wl,--whole-archive {{inputs}} {{solibs}} -Wl,--no-whole-archive $sol
ink_libs_section_prefix {{libs}} $solink_libs_section_postfix" | |
151 | 149 |
152 description = "SOLINK $sofile" | 150 description = "SOLINK $sofile" |
153 | 151 |
154 # Use this for {{output_extension}} expansions unless a target manually | 152 # Use this for {{output_extension}} expansions unless a target manually |
155 # overrides it (in which case {{output_extension}} will be what the target | 153 # overrides it (in which case {{output_extension}} will be what the target |
156 # specifies). | 154 # specifies). |
157 default_output_extension = ".so" | 155 default_output_extension = ".so" |
158 | 156 |
159 output_prefix = "lib" | 157 output_prefix = "lib" |
160 | 158 |
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172 if (defined(invoker.solink_outputs)) { | 170 if (defined(invoker.solink_outputs)) { |
173 outputs += invoker.solink_outputs | 171 outputs += invoker.solink_outputs |
174 } | 172 } |
175 link_output = sofile | 173 link_output = sofile |
176 depend_output = tocfile | 174 depend_output = tocfile |
177 } | 175 } |
178 | 176 |
179 tool("link") { | 177 tool("link") { |
180 outfile = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}" | 178 outfile = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}" |
181 rspfile = "$outfile.rsp" | 179 rspfile = "$outfile.rsp" |
182 command = | 180 command = "$ld {{ldflags}} -o $outfile -Wl,--start-group @$rspfile {{solib
s}} -Wl,--end-group $libs_section_prefix {{libs}} $libs_section_postfix" |
183 "$ld {{ldflags}} -o $outfile -Wl,--start-group @$rspfile {{solibs}} -W
l,--end-group $libs_section_prefix {{libs}} $libs_section_postfix" | |
184 if (defined(invoker.postlink)) { | 181 if (defined(invoker.postlink)) { |
185 command += " && " + invoker.postlink | 182 command += " && " + invoker.postlink |
186 } | 183 } |
187 description = "LINK $outfile" | 184 description = "LINK $outfile" |
188 rspfile_content = "{{inputs}}" | 185 rspfile_content = "{{inputs}}" |
189 outputs = [ outfile ] | 186 outputs = [ |
| 187 outfile, |
| 188 ] |
190 if (defined(invoker.link_outputs)) { | 189 if (defined(invoker.link_outputs)) { |
191 outputs += invoker.link_outputs | 190 outputs += invoker.link_outputs |
192 } | 191 } |
193 } | 192 } |
194 | 193 |
195 tool("stamp") { | 194 tool("stamp") { |
196 command = "touch {{output}}" | 195 command = "touch {{output}}" |
197 description = "STAMP {{output}}" | 196 description = "STAMP {{output}}" |
198 } | 197 } |
199 | 198 |
200 tool("copy") { | 199 tool("copy") { |
201 command = | 200 command = "ln -f {{source}} {{output}} 2>/dev/null || (rm -rf {{output}} &
& cp -af {{source}} {{output}})" |
202 "ln -f {{source}} {{output}} 2>/dev/null || (rm -rf {{output}} && cp -
af {{source}} {{output}})" | |
203 description = "COPY {{source}} {{output}}" | 201 description = "COPY {{source}} {{output}}" |
204 } | 202 } |
205 | 203 |
206 # When invoking this toolchain not as the default one, these args will be | 204 # When invoking this toolchain not as the default one, these args will be |
207 # passed to the build. They are ignored when this is the default toolchain. | 205 # passed to the build. They are ignored when this is the default toolchain. |
208 toolchain_args() { | 206 toolchain_args() { |
209 cpu_arch = invoker.toolchain_cpu_arch | 207 cpu_arch = invoker.toolchain_cpu_arch |
210 os = invoker.toolchain_os | 208 os = invoker.toolchain_os |
211 if (defined(invoker.is_clang)) { | 209 if (defined(invoker.is_clang)) { |
212 is_clang = invoker.is_clang | 210 is_clang = invoker.is_clang |
213 } | 211 } |
214 } | 212 } |
215 | 213 |
216 if (defined(invoker.deps)) { | 214 if (defined(invoker.deps)) { |
217 deps = invoker.deps | 215 deps = invoker.deps |
218 } | 216 } |
219 } | 217 } |
220 } | 218 } |
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