mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 08:16:09 +03:00
87 lines
3.0 KiB
C++
87 lines
3.0 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "tools/gn/build_settings.h"
|
|
#include "tools/gn/functions.h"
|
|
#include "tools/gn/loader.h"
|
|
#include "tools/gn/parse_tree.h"
|
|
#include "tools/gn/scope.h"
|
|
#include "tools/gn/settings.h"
|
|
|
|
namespace functions {
|
|
|
|
const char kSetDefaultToolchain[] = "set_default_toolchain";
|
|
const char kSetDefaultToolchain_HelpShort[] =
|
|
"set_default_toolchain: Sets the default toolchain name.";
|
|
const char kSetDefaultToolchain_Help[] =
|
|
R"(set_default_toolchain: Sets the default toolchain name.
|
|
|
|
set_default_toolchain(toolchain_label)
|
|
|
|
The given label should identify a toolchain definition (see "gn help
|
|
toolchain"). This toolchain will be used for all targets unless otherwise
|
|
specified.
|
|
|
|
This function is only valid to call during the processing of the build
|
|
configuration file. Since the build configuration file is processed
|
|
separately for each toolchain, this function will be a no-op when called
|
|
under any non-default toolchains.
|
|
|
|
For example, the default toolchain should be appropriate for the current
|
|
environment. If the current environment is 32-bit and somebody references a
|
|
target with a 64-bit toolchain, we wouldn't want processing of the build
|
|
config file for the 64-bit toolchain to reset the default toolchain to
|
|
64-bit, we want to keep it 32-bits.
|
|
|
|
Argument
|
|
|
|
toolchain_label
|
|
Toolchain name.
|
|
|
|
Example
|
|
|
|
# Set default toolchain only has an effect when run in the context of the
|
|
# default toolchain. Pick the right one according to the current CPU
|
|
# architecture.
|
|
if (target_cpu == "x64") {
|
|
set_default_toolchain("//toolchains:64")
|
|
} else if (target_cpu == "x86") {
|
|
set_default_toolchain("//toolchains:32")
|
|
}
|
|
)";
|
|
|
|
Value RunSetDefaultToolchain(Scope* scope,
|
|
const FunctionCallNode* function,
|
|
const std::vector<Value>& args,
|
|
Err* err) {
|
|
if (!scope->IsProcessingBuildConfig()) {
|
|
*err = Err(function->function(), "Must be called from build config.",
|
|
"set_default_toolchain can only be called from the build configuration "
|
|
"file.");
|
|
return Value();
|
|
}
|
|
|
|
// When the loader is expecting the default toolchain to be set, it will set
|
|
// this key on the scope to point to the destination.
|
|
Label* default_toolchain_dest = static_cast<Label*>(
|
|
scope->GetProperty(Loader::kDefaultToolchainKey, nullptr));
|
|
if (!default_toolchain_dest)
|
|
return Value();
|
|
|
|
const SourceDir& current_dir = scope->GetSourceDir();
|
|
const Label& default_toolchain = ToolchainLabelForScope(scope);
|
|
|
|
if (!EnsureSingleStringArg(function, args, err))
|
|
return Value();
|
|
Label toolchain_label(
|
|
Label::Resolve(current_dir, default_toolchain, args[0], err));
|
|
if (toolchain_label.is_null())
|
|
return Value();
|
|
|
|
*default_toolchain_dest = toolchain_label;
|
|
return Value();
|
|
}
|
|
|
|
} // namespace functions
|