feat: add PE resource version + metadata generation by Alan632 · Pull Request #661 · microsoft/windows-drivers-rs

Alan632 · 2026-05-22T23:29:32Z

Summary

Currently driver PE resource metadata and versioning do not get populated (the version in the *.inf does) and makes issue and post-mortem troubleshooting/tracing difficult.

This PR adds the functionality to populate the PE resource metadata automatically.

`wdk-build/src/lib.rs`

Adds a new variant to ConfigError
Extends configure_binary_build to initiate *.rc generation, compilation to *.res, and linker directive emission

`wdk-build/src/resource_compile.rs`

Entry point via compile_version_resource called from configure_binary_build
Grabs the driver version from the environment variable STAMPINF_VERSION, falling back to CARGO_PKG_VERSION set by Cargo
Pulls other PE Property values from Cargo.toml, defaulting to Cargo environment variables if missing
Generates an *.rc file and runs rc.exe to compile to a *.res and emits linker directives

`wdk-build/src/metadata/mod.rs`

Changes parsing functions for wdk metadata to allow other sections to coexist in the Cargo.toml (eg. new [package.metadata.wdk.version-resource]), keeps strict serde validation of Wdk/DriverConfig (eg. [package.metadata.wdk.driver-model])
Adds additional unit tests

Validation

Local testing with in production driver in the following scenarios: missing version-resource metadata, populated version-resource metadata, and STAMPINF_VERSION set.

Tested with sample drivers kmdf/wdm/umdf.

WDM sample driver with [package.metadata.wdk.version-resource] info filled in:

UMDF sample driver without [package.metadata.wdk.version-resource] info:

… var as the same as an absent env var, update documentation, update and add unit tests

Copilot

Pull request overview

This PR adds automatic generation and compilation of Windows PE VERSIONINFO resources for driver binaries built with wdk-build, so that file version and descriptive metadata are embedded directly into the produced .sys / .dll artifacts (not just the .inf).

Changes:

Introduces resource_compile module to generate a .rc, compile it via rc.exe to a .res, and emit linker args to embed it into the driver binary.
Extends ConfigError and Config::configure_binary_build to run the version-resource compilation step during build script configuration.
Updates WDK metadata parsing so [package.metadata.wdk.*] sections (e.g., version-resource) can coexist while still strictly validating the driver-model configuration, plus adds unit tests.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
crates/wdk-build/src/resource_compile.rs	New module implementing version/metadata resolution, `.rc` generation, `rc.exe` invocation, and link-arg emission, with unit tests.
crates/wdk-build/src/metadata/mod.rs	Narrows WDK configuration deserialization to `metadata.wdk.driver-model` while permitting other `metadata.wdk.*` sections; adds tests.
crates/wdk-build/src/lib.rs	Exposes the new module, adds a `ConfigError` variant, and invokes resource compilation from `configure_binary_build`.

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codecov-commenter · 2026-05-23T00:20:11Z

Codecov Report

❌ Patch coverage is 93.09665% with 70 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.89%. Comparing base (21ec8f8) to head (9d1fc94).

Files with missing lines	Patch %	Lines
crates/wdk-build/src/resource_compile.rs	92.74%	47 Missing and 20 partials ⚠️
crates/wdk-build/src/metadata/mod.rs	96.59%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #661      +/-   ##
==========================================
+ Coverage   79.93%   81.89%   +1.95%     
==========================================
  Files          26       27       +1     
  Lines        5633     6627     +994     
  Branches     5633     6627     +994     
==========================================
+ Hits         4503     5427     +924     
- Misses       1002     1050      +48     
- Partials      128      150      +22

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…tness for different dev environment setups

Copilot

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Signed-off-by: Alan632 <aln.noda7@gmail.com>

Copilot

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Signed-off-by: Alan632 <aln.noda7@gmail.com>

Copilot

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

… typos.toml used in rc.exe args

…se crate only), fix lint issues

Copilot

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

…ary rerun directive (CI builds are fresh), fix formatting in .typos.toml

Copilot

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

- add pass through of source error into ConfigError's output

Copilot

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Signed-off-by: Alan632 <aln.noda7@gmail.com>

Copilot

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

krishnakumar4a4 · 2026-06-23T03:51:32Z

+    // Invoke rc.exe (expected to be on PATH via eWDK prompt or cargo-wdk setup)
+    let include_paths = resource_include_paths(config)?;
+
+    let mut cmd = Command::new("rc.exe");


Was it an intentional choice not to use pre-existing crates for RC file generation and compilation, such as winresource, winres, or embed_resource, or were there other reasons?

It wasn't an intentional choice not to use an existing crate, just something carried over after looking at someone else's previous work (#243).

From my quick look it looks like winresource supersedes winres (winres doesn't support Rust >= v1.61). I think the benefit winresource brings is it handles the .rc file content generation automatically but we would still need the toolchain/resource path creation for it. And, embed_resource requires both (it needs a pre-generated .rc file). I'll take a further look into these crates but initially I'm thinking the extra complexity with integrating them doesn't gain us that much compared with the extra dependencies we'd pull in?

just chiming in here. When I assigned this to Alan, I did intentionally tell Alan that the existing crates I surveyed previously either had long-standing bugs that affected their reliability, were unmaintained, or otherwise did not satisfy our requirements. Our goal here is to piggy-back off our existing metadata configuration system to avoid needing to manually an rc file that duplicates information we've provided elsewhere.

- add a handler to deal with multiple authors cleanly - move env_var_non_empty to utils.rs - fix a cyclic error types with ResourceCompileError

Copilot

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

+        fn create_include_subdirectories(include_directory: &Path, subdirectories: &[&str]) {
+            for subdirectory in subdirectories {
+                fs::create_dir_all(include_directory.join(subdirectory)).unwrap();
+            }


wmmc88 · 2026-06-29T18:44:43Z

 [files]
 extend-exclude = ["**/Cargo.lock", "**/target/**"]

+# Allowlist short words that collide with the typos dictionary but are


nit: scope this down as much as possible since this could be a common typo. Something like this could work:

[type.resource_compile] extend-glob = ["resource_compile.rs"] extend-words = { # rc.exe /fo (output file) switch fo = "fo" }

wmmc88 · 2026-06-29T19:24:57Z

+    // Invoke rc.exe (expected to be on PATH via eWDK prompt or cargo-wdk setup)
+    let include_paths = resource_include_paths(config)?;
+
+    let mut cmd = Command::new("rc.exe");


just chiming in here. When I assigned this to Alan, I did intentionally tell Alan that the existing crates I surveyed previously either had long-standing bugs that affected their reliability, were unmaintained, or otherwise did not satisfy our requirements. Our goal here is to piggy-back off our existing metadata configuration system to avoid needing to manually an rc file that duplicates information we've provided elsewhere.

wmmc88 · 2026-06-29T19:32:51Z

+/// `CARGO_PKG_VERSION` env var (emitted by cargo)
+/// if env var is not present or empty.
+fn resolve_version() -> Result<DriverVersion, ResourceCompileError> {
+    let version_str = env_var_non_empty(VERSION_ENV_VAR).map_or_else(


VERSION_ENV_VAR corresponds with STAMPINF_VERSION that was previously added in order to get around cargo-wdk currently not having a flexible customization system. That system is being developed right now. I think perhaps we should avoid tying more functionality to that temporary workaround.

wmmc88 · 2026-06-30T14:53:23Z

+    for (macro_name, macro_value) in [
+        ("VER_FILEDESCRIPTION_STR", format!("\"{file_description}\"")),
+        ("VER_PRODUCTNAME_STR", format!("\"{product_name}\"")),
+        ("VER_FILEVERSION", version.as_rc_numeric()),


What about PRODUCTVERSION? do both get set by default in a C driver?

wmmc88 · 2026-06-30T15:02:49Z

+        DriverConfig::Umdf(_) => ("VFT_DLL", "VFT2_UNKNOWN"),
+    };
+
+    let mut rc = String::with_capacity(1024);


Since you're writing into a string anyways, I think this chunk would be a lot more readable and easier to grok the RC file contents if it did a template with string replacement similar to

windows-drivers-rs/crates/wdk-sys/build.rs

Line 64 in 0e3499d

static CALL_UNSAFE_WDF_BINDING_TEMPLATE: LazyLock<String> = LazyLock::new(|| {

.

wmmc88 · 2026-06-30T15:25:45Z

+
+            let rc = generate_rc_content(version, &metadata, &config);
+
+            assert!(rc.contains("#pragma code_page(65001)"));


Not necessarily required for this PR to merge, but I think some snapshot testing here would be better since the output is fairly complex. It would be worth looking into insta or snapbox

wmmc88 · 2026-06-30T16:13:39Z

@@ -0,0 +1,1645 @@
+// Copyright (c) Microsoft Corporation


I think there should be an integration test asserting the version derived here matches the version in the inf. You can probably add that test coverage by piggybacking on some of the existing integration tests in cargo-wdk

wmmc88 · 2026-06-30T16:18:46Z

+fn resolve_version() -> Result<DriverVersion, ResourceCompileError> {
+    let version_str = env_var_non_empty(VERSION_ENV_VAR).map_or_else(
+        || {
+            env::var("CARGO_PKG_VERSION").map_err(|_| ResourceCompileError::MetadataError {


what is the current behavior here if there is not version defined (since cargo made version field optional)? Does it error out or does it default to 0.0.0?

Copilot

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

+    let metadata = cargo_metadata::MetadataCommand::new()
+        .manifest_path(&manifest_path)
+        .no_deps()
+        .exec()
+        .map_err(|e| ResourceCompileError::MetadataError {
+            detail: format!("cargo metadata failed: {e}"),
+        })?;


Alan Ngo added 3 commits May 19, 2026 21:09

driver file versioning via .rc file initial commit

d3e2bdb

redesign so PE resource versioning is automatic

d25204c

update resolve_version functionality to treat empty string in the env…

9fbd5f6

… var as the same as an absent env var, update documentation, update and add unit tests

Alan632 self-assigned this May 22, 2026

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Comment thread crates/wdk-build/src/resource_compile.rs Dismissed

formatting

c797b5c

fixes method for finding header paths for rc.exe calls and adds robus…

bc1ccae

…tness for different dev environment setups

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Alan632 marked this pull request as ready for review May 27, 2026 20:13

change parse_version error information to include more info

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Merge branch 'main' into driver_file_versioning

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remove resource_compile from wdk-build's public API

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Alan Ngo added 2 commits May 27, 2026 15:03

modifies RC Error variant CompilerFailed, add short word exception to…

5ae23ca

… typos.toml used in rc.exe args

fix public api surface (ResourceCompileError should be public, all el…

6dc80b5

…se crate only), fix lint issues

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Comment thread crates/wdk-build/src/resource_compile.rs

Comment thread crates/wdk-build/src/lib.rs

further minimize API surface to only what's necessary, remove unecess…

4fdf830

…ary rerun directive (CI builds are fresh), fix formatting in .typos.toml

Merge branch 'main' into driver_file_versioning

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Merge branch 'main' into driver_file_versioning

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- constrain code page to UTF-8 (inputs into rc.exe)

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fixing comment

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Alan Ngo added 2 commits June 23, 2026 17:10

- refactor to utilize deserialization to build VersionResourceOverrides

2833f39

- add a handler to deal with multiple authors cleanly - move env_var_non_empty to utils.rs - fix a cyclic error types with ResourceCompileError

- update include syntax for common.ver in resource compilation

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Comment thread crates/wdk-build/src/resource_compile.rs

Comment on lines +1399 to +1402

fn create_include_subdirectories(include_directory: &Path, subdirectories: &[&str]) {

for subdirectory in subdirectories {

fs::create_dir_all(include_directory.join(subdirectory)).unwrap();

}

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Alan632 added 2 commits June 30, 2026 11:49

Merge branch 'main' into driver_file_versioning

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Merge branch 'main' into driver_file_versioning

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Comment thread crates/wdk-build/src/resource_compile.rs

Comment on lines +300 to +306

let metadata = cargo_metadata::MetadataCommand::new()

.manifest_path(&manifest_path)

.no_deps()

.exec()

.map_err(|e| ResourceCompileError::MetadataError {

detail: format!("cargo metadata failed: {e}"),

})?;


		let rc = generate_rc_content(version, &metadata, &config);

		assert!(rc.contains("#pragma code_page(65001)"));

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Summary

wdk-build/src/lib.rs

wdk-build/src/resource_compile.rs

wdk-build/src/metadata/mod.rs

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Alan632 commented May 22, 2026 •

edited

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`wdk-build/src/lib.rs`

`wdk-build/src/resource_compile.rs`

`wdk-build/src/metadata/mod.rs`

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