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stdlib_label = "//build_extra/rust:stdlib"
template("run_rustc") {
action(target_name) {
assert(defined(invoker.source_root), "Must specify source_root")
forward_variables_from(invoker,
[
"cfg",
"crate_type",
"source_root",
"deps",
"extern",
])
if (defined(invoker.crate_name)) {
crate_name = invoker.crate_name
} else {
crate_name = target_name
}
sources = [
source_root,
]
outputs = []
depfile = "$target_out_dir/$target_name.d"
script = "//third_party/v8/tools/run.py"
args = [
"rustc",
rebase_path(source_root, root_build_dir),
"--crate-name=$crate_name",
"--crate-type=$crate_type",
"--emit=dep-info=" + rebase_path(depfile, root_build_dir),
]
# We only use staticlib for the special "empty" lib.
if (crate_type == "staticlib") {
staticlib = "$target_out_dir/$crate_name.a"
outputs += [ staticlib ]
args += [ "--emit=link=" + rebase_path(staticlib, root_build_dir) ]
}
if (crate_type == "rlib" || crate_type == "bin") {
obj = "$target_out_dir/$crate_name.o"
outputs += [ obj ]
args += [ "--emit=obj=" + rebase_path(obj, root_build_dir) ]
}
if (crate_type == "rlib") {
rlib = "$target_out_dir/lib$crate_name.rlib"
outputs += [ rlib ]
args += [ "--emit=link=" + rebase_path(rlib, root_build_dir) ]
}
if (is_debug) {
args += [ "-g" ]
}
if (is_official_build) {
args += [ "-O" ]
}
if (defined(cfg)) {
foreach(c, cfg) {
args += [
"--cfg",
c,
]
}
}
if (!defined(deps)) {
deps = []
}
if (defined(extern)) {
deps += extern
foreach(label, extern) {
name = get_label_info(label, "name")
dir = get_label_info(label, "target_out_dir")
rlib = "$dir/lib$name.rlib"
args += [
"--extern",
"$name=" + rebase_path(rlib, root_build_dir),
]
}
}
}
}
template("rust_component") {
rustc_name = target_name + "_rustc"
rustc_label = ":" + rustc_name
crate_name = target_name
run_rustc(rustc_name) {
forward_variables_from(invoker,
[
"crate_name",
"crate_type",
"extern",
"cfg",
"source_root",
])
if (!defined(invoker.crate_type)) {
crate_type = "rlib"
}
}
crate_outputs = get_target_outputs(rustc_label)
crate_obj = crate_outputs[0]
component(target_name) {
forward_variables_from(invoker,
[
"libs",
"deps",
])
if (!defined(deps)) {
deps = []
}
if (!defined(libs)) {
libs = []
}
libs += [ crate_obj ]
deps += [ rustc_label ]
}
}
template("rust_executable") {
bin_name = target_name + "_bin"
bin_label = ":" + bin_name
rust_component(bin_name) {
crate_type = "bin"
forward_variables_from(invoker, "*")
}
executable(target_name) {
forward_variables_from(invoker, "*")
if (!defined(deps)) {
deps = []
}
deps += [
bin_label,
stdlib_label,
]
if (defined(extern)) {
deps += extern
}
}
}
|
