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cuda: name the missing entry point in load_function errors #10

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cuda: name the missing entry point in load_function errors #10

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14 changes: 13 additions & 1 deletion crates/khal/src/backend/cuda.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,13 @@ pub enum CudaBackendError {
ShaderArg(#[from] ShaderArgsError),
#[error("CUDA driver error: {0}")]
Driver(#[from] driver::DriverError),
/// The requested kernel entry point was not found in the loaded module —
/// typically a stale prebuilt module or a shader/host build mismatch.
#[error("failed to load kernel entry point `{entry_point}`: {source}")]
LoadFunction {
entry_point: String,
source: driver::DriverError,
},
#[error("Invalid PTX module")]
InvalidPtx,
}
Expand Down Expand Up @@ -318,7 +325,12 @@ impl Backend for Cuda {
entry_point: &str,
_push_constant_size: u32,
) -> Result<Self::Function, Self::Error> {
let func = module.inner.load_function(entry_point)?;
let func = module.inner.load_function(entry_point).map_err(|source| {
CudaBackendError::LoadFunction {
entry_point: entry_point.to_string(),
source,
}
})?;
Ok(CudaFunction { func })
}

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