Merge branch 'dev' of github.com:myadav27/hyperlight into dev

Author: myadav27

CHANGELOG.md

@@ -4,17 +4,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Prerelease] - Unreleased
 
-### Added  
--
 
-### Changed
--
+## [v0.4.0] - Unreleased
 
-### Removed
--
+### Changed
+- Metrics are now emitted using the [metrics](https://crates.io/crates/metrics) crate by @ludfjig in [#361](https://github.com/hyperlight-dev/hyperlight/pull/361)
 
 ### Fixed
--
+- Fixed race condition causing thread to incorrectly believe it finished executing by @ludfjig in [#385](https://github.com/hyperlight-dev/hyperlight/pull/385)
+- Fixed incorrect logging levels in guest by @simongdavies in [#410](https://github.com/hyperlight-dev/hyperlight/pull/410)
+- Fixed missing compiler flags for building c guests by @prydt in [#421](https://github.com/hyperlight-dev/hyperlight/pull/421) 
 
 ## [v0.3.0] - 2025-03-27
 
@@ -65,7 +64,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 The Initial Hyperlight Release 🎉 
 
 
-[Prerelease]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.3.0..HEAD>
+[Prerelease]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.4.0..HEAD>
+[v0.4.0]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.3.0...v0.4.0>
 [v0.3.0]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.2.0...v0.3.0>
 [v0.2.0]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.1.0...v0.2.0>
-[v0.1.0]: <https://github.com/hyperlight-dev/hyperlight/releases/tag/v0.1.0>
+[v0.1.0]: <https://github.com/hyperlight-dev/hyperlight/releases/tag/v0.1.0>

Cargo.lock

@@ -62,18 +62,18 @@ $env:RUST_LOG='none,hyperlight_host=info,tracing=info'; cargo run --example trac
 
 ### Using OTLP exporter and Jaeger
 
-In the [examples/otlp_tracing](../src/hyperlight_host/examples/otlp_tracing) directory, there is an example that shows how to capture and send trace and log information to an otlp_collector using the opentelemetry_otlp crate. With this example the following commands can be used to set the verbosity of the trace output to `INFO` and run the example to generate trace data:
+In the [examples/tracing-otlp](../src/hyperlight_host/examples/tracing-otlp) directory, there is an example that shows how to capture and send trace and log information to an otlp_collector using the opentelemetry_otlp crate. With this example the following commands can be used to set the verbosity of the trace output to `INFO` and run the example to generate trace data:
 
 #### Linux
 
 ```bash
-RUST_LOG='none,hyperlight_host=info,tracing=info' cargo run --example otlp_tracing
+RUST_LOG='none,hyperlight_host=info,tracing=info' cargo run --example tracing-otlp
 ```
 
 #### Windows
 
 ```powershell
-$env:RUST_LOG='none,hyperlight_host=info,tracing=info';cargo run --example otlp_tracing
+$env:RUST_LOG='none,hyperlight_host=info,tracing=info';cargo run --example tracing-otlp
 ```
 
 The sample will run and generate trace data until any key is pressed.

docs/hyperlight-metrics-logs-and-traces.md

@@ -103,6 +103,7 @@ criterion = "0.5.1"
 tracing-chrome = "0.7.2"
 metrics-util = "0.19.1"
 metrics-exporter-prometheus = "0.17.0"
+tracing-tracy = "0.11.4"
 
 [target.'cfg(windows)'.dev-dependencies]
 windows = { version = "0.61", features = [

src/hyperlight_host/Cargo.toml

@@ -23,7 +23,7 @@ use hyperlight_testing::simple_guest_as_string;
 use tracing_chrome::ChromeLayerBuilder;
 use tracing_subscriber::prelude::*;
 
-// This example can be run with `cargo run --package hyperlight_host --example chrome-tracing --release`
+// This example can be run with `cargo run --package hyperlight_host --example tracing-chrome --release`
 fn main() -> Result<()> {
     // set up tracer
     let (chrome_layer, _guard) = ChromeLayerBuilder::new().build();

src/hyperlight_host/examples/chrome-tracing/README.md renamed to src/hyperlight_host/examples/tracing-chrome/README.md

@@ -0,0 +1,11 @@
+This is an example of using the tracing-tracy tracing-subscriber. When ran, it will generate traces that can be viewed in the tracy profiler.
+
+You can run it with:
+
+```console
+TRACY_NO_EXIT=1 RUST_LOG=trace cargo run --package hyperlight-host --example tracing-tracy --profile release-with-debug
+```
+
+and then the client should show up in the profiler GUI:
+
+![pic of tracy profiler](image.png)