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# Copyright 2014 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# This template makes a stub for a Linux system library that dynamically loads
# it at runtime.
# name: Name to use for the value of the --name arg.
# output_h/output_cc: Names for the generated header/cc file with no dir.
# header: header file to process. Example: "<foo/bar.h>"
# functions: List of strings for functions to process.
# config: (optional) Label of the config generated by pkgconfig.
# bundled_header: (optional)
template("generate_library_loader") {
output_h = "$root_gen_dir/library_loaders/" + invoker.output_h
output_cc = "$root_gen_dir/library_loaders/" + invoker.output_cc
action_visibility = [ ":$target_name" ]
action("${target_name}_loader") {
visibility = action_visibility
script = "//tools/generate_library_loader/generate_library_loader.py"
outputs = [
output_h,
output_cc,
]
args = [
"--name",
invoker.name,
"--output-h",
rebase_path(output_h, root_build_dir),
"--output-cc",
rebase_path(output_cc, root_build_dir),
"--header",
invoker.header,
# Note GYP build exposes a per-target variable to control this, which, if
# manually set to true, will disable dlopen(). Its not clear this is
# needed, so here we just leave off. If this can be done globally, we can
# expose one switch for this value, otherwise we need to add a template
# param for this.
"--link-directly=0",
]
if (defined(invoker.bundled_header)) {
args += [
"--bundled-header",
invoker.bundled_header,
]
}
args += invoker.functions
}
source_set(target_name) {
if (defined(invoker.config)) {
public_configs = [ invoker.config ]
}
sources = [
output_cc,
output_h,
]
public_deps = [ ":${target_name}_loader" ]
}
}
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