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Merged
merged 1 commit into from
May 24, 2025
Merged

Use MANIFEST_DIR in build scripts #215

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59 changes: 41 additions & 18 deletions crates/cust_raw/build/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,10 @@ fn main() {
let outdir = path::PathBuf::from(
env::var("OUT_DIR").expect("OUT_DIR environment variable should be set by cargo."),
);
let manifest_dir = path::PathBuf::from(
env::var("CARGO_MANIFEST_DIR")
.expect("CARGO_MANIFEST_DIR environment variable should be set by cargo."),
);

let sdk = cuda_sdk::CudaSdk::new().expect("Cannot create CUDA SDK instance.");
// Emit metadata for the build script.
Expand Down Expand Up @@ -63,11 +67,11 @@ fn main() {
println!("cargo::rerun-if-env-changed={}", e);
}

create_cuda_driver_bindings(&sdk, outdir.as_path());
create_cuda_runtime_bindings(&sdk, outdir.as_path());
create_cublas_bindings(&sdk, outdir.as_path());
create_nptx_compiler_bindings(&sdk, outdir.as_path());
create_nvvm_bindings(&sdk, outdir.as_path());
create_cuda_driver_bindings(&sdk, &outdir, &manifest_dir);
create_cuda_runtime_bindings(&sdk, &outdir, &manifest_dir);
create_cublas_bindings(&sdk, &outdir, &manifest_dir);
create_nptx_compiler_bindings(&sdk, &outdir, &manifest_dir);
create_nvvm_bindings(&sdk, &outdir, &manifest_dir);

if cfg!(any(
feature = "driver",
Expand Down Expand Up @@ -101,14 +105,19 @@ fn main() {
}
}

fn create_cuda_driver_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
fn create_cuda_driver_bindings(
sdk: &cuda_sdk::CudaSdk,
outdir: &path::Path,
manifest_dir: &path::Path,
) {
if !cfg!(feature = "driver") {
return;
}
let bindgen_path = path::PathBuf::from(format!("{}/driver_sys.rs", outdir.display()));
let header = "build/driver_wrapper.h";
let header = manifest_dir.join("build/driver_wrapper.h");
println!("cargo::rerun-if-changed={}", header.display());
let bindings = bindgen::Builder::default()
.header(header)
.header(header.to_str().expect("header should be valid UTF-8"))
.parse_callbacks(Box::new(callbacks::FunctionRenames::new(
"cu",
outdir,
Expand Down Expand Up @@ -145,14 +154,19 @@ fn create_cuda_driver_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
.expect("Cannot write CUDA driver bindgen output to file.");
}

fn create_cuda_runtime_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
fn create_cuda_runtime_bindings(
sdk: &cuda_sdk::CudaSdk,
outdir: &path::Path,
manifest_dir: &path::Path,
) {
if !cfg!(feature = "runtime") {
return;
}
let bindgen_path = path::PathBuf::from(format!("{}/runtime_sys.rs", outdir.display()));
let header = "build/runtime_wrapper.h";
let header = manifest_dir.join("build/runtime_wrapper.h");
println!("cargo::rerun-if-changed={}", header.display());
let bindings = bindgen::Builder::default()
.header(header)
.header(header.to_str().expect("header should be valid UTF-8"))
.parse_callbacks(Box::new(callbacks::FunctionRenames::new(
"cuda",
outdir,
Expand Down Expand Up @@ -187,7 +201,7 @@ fn create_cuda_runtime_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
.expect("Cannot write CUDA runtime bindgen output to file.");
}

fn create_cublas_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
fn create_cublas_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path, manifest_dir: &path::Path) {
#[rustfmt::skip]
let params = &[
(cfg!(feature = "cublas"), "cublas", "^cublas.*", "^CUBLAS.*"),
Expand All @@ -199,9 +213,10 @@ fn create_cublas_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
continue;
}
let bindgen_path = path::PathBuf::from(format!("{}/{pkg}_sys.rs", outdir.display()));
let header = format!("build/{pkg}_wrapper.h");
let header = manifest_dir.join(format!("build/{pkg}_wrapper.h"));
println!("cargo::rerun-if-changed={}", header.display());
let bindings = bindgen::Builder::default()
.header(&header)
.header(header.to_str().expect("header should be valid UTF-8"))
.parse_callbacks(Box::new(callbacks::FunctionRenames::new(
pkg,
outdir,
Expand Down Expand Up @@ -235,13 +250,19 @@ fn create_cublas_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
}
}

fn create_nptx_compiler_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
fn create_nptx_compiler_bindings(
sdk: &cuda_sdk::CudaSdk,
outdir: &path::Path,
manifest_dir: &path::Path,
) {
if !cfg!(feature = "nvptx-compiler") {
return;
}
let bindgen_path = path::PathBuf::from(format!("{}/nvptx_compiler_sys.rs", outdir.display()));
let header = manifest_dir.join("build/nvptx_compiler_wrapper.h");
println!("cargo::rerun-if-changed={}", header.display());
let bindings = bindgen::Builder::default()
.header("build/nvptx_compiler_wrapper.h")
.header(header.to_str().expect("header should be valid UTF-8"))
.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
.clang_args(
sdk.cuda_include_paths()
Expand All @@ -268,13 +289,15 @@ fn create_nptx_compiler_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
.expect("Cannot write nvptx-compiler bindgen output to file.");
}

fn create_nvvm_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path) {
fn create_nvvm_bindings(sdk: &cuda_sdk::CudaSdk, outdir: &path::Path, manifest_dir: &path::Path) {
if !cfg!(feature = "nvvm") {
return;
}
let bindgen_path = path::PathBuf::from(format!("{}/nvvm_sys.rs", outdir.display()));
let header = manifest_dir.join("build/nvvm_wrapper.h");
println!("cargo::rerun-if-changed={}", header.display());
let bindings = bindgen::Builder::default()
.header("build/nvvm_wrapper.h")
.header(header.to_str().expect("header should be valid UTF-8"))
.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
.clang_args(
sdk.nvvm_include_paths()
Expand Down
4 changes: 3 additions & 1 deletion examples/cuda/gemm/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,9 @@ fn main() {
println!("cargo::rerun-if-changed=kernels");

let out_path = path::PathBuf::from(env::var("OUT_DIR").unwrap());
CudaBuilder::new("kernels")
let manifest_dir = path::PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());

CudaBuilder::new(manifest_dir.join("kernels"))
.copy_to(out_path.join("kernels.ptx"))
.build()
.unwrap();
Expand Down
9 changes: 7 additions & 2 deletions examples/cuda/path_tracer/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,17 @@ use std::path;
use cuda_builder::CudaBuilder;

fn main() {
println!("cargo::rerun-if-changed=build.rs");
println!("cargo::rerun-if-changed=kernels");

let out_path = path::PathBuf::from(env::var("OUT_DIR").unwrap());
CudaBuilder::new("kernels")
let manifest_dir = path::PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());

CudaBuilder::new(manifest_dir.join("kernels"))
.copy_to(out_path.join("kernels.ptx"))
.build()
.unwrap();
CudaBuilder::new("kernels")
CudaBuilder::new(manifest_dir.join("kernels"))
.copy_to(out_path.join("kernels_optix.ptx"))
.build_args(&["--features", "optix"])
.build()
Expand Down
8 changes: 5 additions & 3 deletions examples/cuda/vecadd/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,13 @@ use std::path;
use cuda_builder::CudaBuilder;

fn main() {
println!("cargo:rerun-if-changed=build.rs");
println!("cargo:rerun-if-changed=kernels");
println!("cargo::rerun-if-changed=build.rs");
println!("cargo::rerun-if-changed=kernels");

let out_path = path::PathBuf::from(env::var("OUT_DIR").unwrap());
CudaBuilder::new("kernels")
let manifest_dir = path::PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());

CudaBuilder::new(manifest_dir.join("kernels"))
.copy_to(out_path.join("kernels.ptx"))
.build()
.unwrap();
Expand Down
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