gn build: Create a template for unix toolchains.

Also change the toolchain description to use current_os instead of
host_os so that the template can be used for cross builds, and add
a current_os to the win toolchain to match the unix toolchain.

Differential Revision: https://reviews.llvm.org/D56576

llvm-svn: 350977
This commit is contained in:
Peter Collingbourne 2019-01-11 22:57:57 +00:00
parent 7d7e3256cd
commit ad7f1d605c
1 changed files with 114 additions and 98 deletions

View File

@ -9,7 +9,113 @@ declare_args() {
} }
} }
toolchain("unix") { template("unix_toolchain") {
toolchain(target_name) {
forward_variables_from(invoker, "*")
tool("cc") {
depfile = "{{output}}.d"
command = "$cc -MMD -MF $depfile -o {{output}} -c {{source}} {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}}"
depsformat = "gcc"
description = "CC {{output}}"
outputs = [
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
]
}
tool("cxx") {
depfile = "{{output}}.d"
command = "$cxx -MMD -MF $depfile -o {{output}} -c {{source}} {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}}"
depsformat = "gcc"
description = "CXX {{output}}"
outputs = [
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
]
}
tool("alink") {
if (current_os == "mac") {
command = "libtool -static -no_warning_for_no_symbols {{arflags}} -o {{output}} {{inputs}}"
} else {
# Remove the output file first so that ar doesn't try to modify the
# existing file.
command = "rm -f {{output}} && $ar rcsDT {{arflags}} {{output}} {{inputs}}"
}
description = "AR {{output}}"
outputs = [
"{{output_dir}}/{{target_output_name}}.a",
]
output_prefix = "lib"
default_output_dir = "{{root_out_dir}}/lib"
}
tool("solink") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (current_os == "mac") {
command = "$ld -shared {{ldflags}} -o $outfile {{libs}} {{inputs}}"
default_output_extension = ".dylib"
} else {
command =
"$ld -shared {{ldflags}} -Wl,-z,defs -o $outfile {{libs}} {{inputs}}"
default_output_extension = ".so"
}
description = "SOLINK $outfile"
outputs = [
outfile,
]
lib_switch = "-l"
output_prefix = "lib"
default_output_dir = "{{root_out_dir}}/lib"
}
tool("solink_module") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (current_os == "mac") {
command = "$ld -shared {{ldflags}} -Wl,-flat_namespace -Wl,-undefined,suppress -o $outfile {{libs}} {{inputs}}"
default_output_extension = ".dylib"
} else {
command = "$ld -shared {{ldflags}} -o $outfile {{libs}} {{inputs}}"
default_output_extension = ".so"
}
description = "SOLINK $outfile"
outputs = [
outfile,
]
lib_switch = "-l"
default_output_dir = "{{root_out_dir}}/lib"
}
tool("link") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (current_os == "mac") {
command = "$ld {{ldflags}} -o $outfile {{libs}} {{inputs}}"
} else {
command = "$ld {{ldflags}} -o $outfile {{libs}} -Wl,--start-group {{inputs}} -Wl,--end-group"
}
description = "LINK $outfile"
outputs = [
outfile,
]
lib_switch = "-l"
# Setting this allows targets to override the default executable output by
# setting output_dir.
default_output_dir = "{{root_out_dir}}/bin"
}
tool("copy") {
command = "ln -f {{source}} {{output}} 2>/dev/null || (rm -rf {{output}} && cp -af {{source}} {{output}})"
description = "COPY {{source}} {{output}}"
}
tool("stamp") {
command = "touch {{output}}"
description = "STAMP {{output}}"
}
}
}
unix_toolchain("unix") {
cc = "cc" cc = "cc"
cxx = "c++" cxx = "c++"
@ -24,104 +130,10 @@ toolchain("unix") {
cxx = "$goma_dir/gomacc $cxx" cxx = "$goma_dir/gomacc $cxx"
} }
tool("cc") { ar = "ar"
depfile = "{{output}}.d"
command = "$cc -MMD -MF $depfile -o {{output}} -c {{source}} {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}}"
depsformat = "gcc"
description = "CC {{output}}"
outputs = [
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
]
}
tool("cxx") { toolchain_args = {
depfile = "{{output}}.d" current_os = host_os
command = "$cxx -MMD -MF $depfile -o {{output}} -c {{source}} {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}}"
depsformat = "gcc"
description = "CXX {{output}}"
outputs = [
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
]
}
tool("alink") {
if (host_os == "mac") {
command = "libtool -static -no_warning_for_no_symbols {{arflags}} -o {{output}} {{inputs}}"
} else {
# Remove the output file first so that ar doesn't try to modify the
# existing file.
command = "rm -f {{output}} && ar rcsDT {{arflags}} {{output}} {{inputs}}"
}
description = "AR {{output}}"
outputs = [
"{{output_dir}}/{{target_output_name}}.a",
]
output_prefix = "lib"
default_output_dir = "{{root_out_dir}}/lib"
}
tool("solink") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (host_os == "mac") {
command = "$ld -shared {{ldflags}} -o $outfile {{libs}} {{inputs}}"
default_output_extension = ".dylib"
} else {
command =
"$ld -shared {{ldflags}} -Wl,-z,defs -o $outfile {{libs}} {{inputs}}"
default_output_extension = ".so"
}
description = "SOLINK $outfile"
outputs = [
outfile,
]
lib_switch = "-l"
output_prefix = "lib"
default_output_dir = "{{root_out_dir}}/lib"
}
tool("solink_module") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (host_os == "mac") {
command = "$ld -shared {{ldflags}} -Wl,-flat_namespace -Wl,-undefined,suppress -o $outfile {{libs}} {{inputs}}"
default_output_extension = ".dylib"
} else {
command = "$ld -shared {{ldflags}} -o $outfile {{libs}} {{inputs}}"
default_output_extension = ".so"
}
description = "SOLINK $outfile"
outputs = [
outfile,
]
lib_switch = "-l"
default_output_dir = "{{root_out_dir}}/lib"
}
tool("link") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (host_os == "mac") {
command = "$ld {{ldflags}} -o $outfile {{libs}} {{inputs}}"
} else {
command = "$ld {{ldflags}} -o $outfile {{libs}} -Wl,--start-group {{inputs}} -Wl,--end-group"
}
description = "LINK $outfile"
outputs = [
outfile,
]
lib_switch = "-l"
# Setting this allows targets to override the default executable output by
# setting output_dir.
default_output_dir = "{{root_out_dir}}/bin"
}
tool("copy") {
command = "ln -f {{source}} {{output}} 2>/dev/null || (rm -rf {{output}} && cp -af {{source}} {{output}})"
description = "COPY {{source}} {{output}}"
}
tool("stamp") {
command = "touch {{output}}"
description = "STAMP {{output}}"
} }
} }
@ -228,4 +240,8 @@ toolchain("win") {
command = "cmd /c type nul > {{output}}" command = "cmd /c type nul > {{output}}"
description = "STAMP {{output}}" description = "STAMP {{output}}"
} }
toolchain_args = {
current_os = "win"
}
} }