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// Copyright (C) 2024 Advanced Micro Devices. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
extern crate bindgen;
use std::env;
use std::fs;
use std::io::Result;
use std::path::{Path, PathBuf};
mod callbacks;
fn get_rocm_dir() -> Option<PathBuf> {
// Look for the latest folder in /opt that begins with "rocm"
let opt_path = Path::new("/opt");
if let Ok(entries) = fs::read_dir(opt_path) {
let mut rocm_dirs: Vec<PathBuf> = entries
.filter_map(|entry| entry.ok())
.map(|entry| entry.path())
.filter(|path| {
path.is_dir()
&& path
.file_name()
.unwrap_or_default()
.to_string_lossy()
.starts_with("rocm")
})
.collect();
// Sort the directories by name and get the latest one
rocm_dirs.sort();
if let Some(latest_rocm_dir) = rocm_dirs.last() {
return Some(latest_rocm_dir.clone());
}
}
None
}
fn get_amdsmi_lib_dir() -> Result<String> {
let amdsmi_file = "libamd_smi.so";
// Check the environment variable AMDSMI_LIB_DIR to get the library directory
if let Ok(lib_dir) = env::var("AMDSMI_LIB_DIR") {
if PathBuf::from(lib_dir.clone()).join(amdsmi_file).exists() {
return Ok(lib_dir);
}
}
// Check the current directory
if let Ok(current_dir) = env::current_dir() {
let current_lib_dir = current_dir.join("lib");
if current_lib_dir.join(amdsmi_file).exists() {
return Ok(current_lib_dir.to_string_lossy().into_owned());
}
}
// Check the ROCm directory
if let Some(lib_dir) = get_rocm_dir() {
if lib_dir.join("lib").join(amdsmi_file).exists() {
return Ok(lib_dir.join("lib").to_string_lossy().into_owned());
}
}
Err(std::io::Error::new(
std::io::ErrorKind::NotFound,
"The libamd_smi.so library was not found. Please set the AMDSMI_LIB_DIR environment variable to the directory containing the library.",
))
}
fn get_amdsmi_header_file() -> Result<String> {
let amdsmi_header_path = "include/amd_smi/amdsmi.h";
// Use the project's header as the first priority
let default_path = PathBuf::from("../").join(amdsmi_header_path);
if default_path.exists() {
return Ok(default_path.to_string_lossy().into_owned());
}
// Check the current directory
if let Ok(current_dir) = env::current_dir() {
let fallback_path = current_dir.join(amdsmi_header_path);
if fallback_path.exists() {
return Ok(fallback_path.to_string_lossy().into_owned());
}
}
// Check the ROCm directory
if let Some(rocm_dir) = get_rocm_dir() {
let fallback_path = rocm_dir.join(amdsmi_header_path);
if fallback_path.exists() {
return Ok(fallback_path.to_string_lossy().into_owned());
}
}
Err(std::io::Error::new(
std::io::ErrorKind::NotFound,
"The amdsmi.h header file was not found",
))
}
fn generate_amdsmi_wrapper(amdsmi_header_file: &str) {
let bindings = bindgen::Builder::default()
.header(amdsmi_header_file)
.generate_comments(false)
.prepend_enum_name(false)
.rustified_enum("^(.*)$")
.allowlist_type("^(amdsmi.*)$")
.allowlist_function("^(amdsmi.*)$")
.allowlist_var("^(AMDSMI.*)$")
.parse_callbacks(Box::new(callbacks::UpperCamelCaseCallbacks))
.raw_line("// Copyright (C) 2024 Advanced Micro Devices. All rights reserved.")
.raw_line("//")
.raw_line(
"// Permission is hereby granted, free of charge, to any person obtaining a copy of",
)
.raw_line(
"// this software and associated documentation files (the \"Software\"), to deal in",
)
.raw_line("// the Software without restriction, including without limitation the rights to")
.raw_line(
"// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of",
)
.raw_line(
"// the Software, and to permit persons to whom the Software is furnished to do so,",
)
.raw_line("// subject to the following conditions:")
.raw_line("//")
.raw_line(
"// The above copyright notice and this permission notice shall be included in all",
)
.raw_line("// copies or substantial portions of the Software.")
.raw_line("//")
.raw_line("// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR")
.raw_line(
"// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS",
)
.raw_line(
"// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR",
)
.raw_line(
"// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER",
)
.raw_line("// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN")
.raw_line("// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.")
.raw_line("")
.raw_line("#![allow(non_upper_case_globals)]")
.generate()
.expect("Unable to binding wrapper for amdsmi C interface!");
let bindings_path = PathBuf::from("./src/amdsmi_wrapper.rs");
bindings
.write_to_file(&bindings_path)
.expect("Couldn't write binding wrapper for amdsmi C interface!");
println!("Wrapper generated at: {:?}", bindings_path);
}
fn main() {
// Get the amd_smi library directory
let amdsmi_lib_dir = get_amdsmi_lib_dir().expect("Failed to get the amd_smi library path");
// Tell cargo to tell rustc to link the AMD-SMI library
println!("cargo:rustc-link-lib=amd_smi");
println!("cargo:rustc-link-search=native={}", amdsmi_lib_dir);
let generate_wrapper = env::var("AMDSMI_GENERATE_RUST_WRAPPER").is_ok();
if generate_wrapper {
// Get the amdsmi.h header file path
let amdsmi_header_file = get_amdsmi_header_file().expect("Failed to get the amd_smi header file");
// Generate the amdsmi wrapper
generate_amdsmi_wrapper(&amdsmi_header_file);
}
}
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