platform_build_soong/ui/build/config_linux.go

// Copyright 2019 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package build

import "syscall"

func detectTotalRAM(ctx Context) uint64 {
	var info syscall.Sysinfo_t
	err := syscall.Sysinfo(&info)
	if err != nil {
		ctx.Printf("Failed to get system memory size: %v", err)
		return 0
	}
	return uint64(info.Totalram) * uint64(info.Unit)
}