Pr/ywmei brt1/support int32 array #4456
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Add support for Int32ListArg to the KprobeArgument in protobuf. This allows capturing arrays of int32 from BPF kprobes. Includes regenerated code, CRDs, and updated generated docs. Fixes: cilium#4442 Signed-off-by: Yaowen Mei <[email protected]>
Implement parsing for int32_array arguments in both BPF and userspace. This allows capturing array arguments from syscalls like pipe2. Fixes: cilium#4442 Signed-off-by: Yaowen Mei <[email protected]>
Add E2E tests and example tracing policies for int32_arr. Signed-off-by: Yaowen Mei <[email protected]>
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Fix warnings from golangci-lint in int32_arr support: - Avoid allocations in pipe2_test.go - Remove empty block in args_linux.go - Use require instead of assert in args_linux_test.go Also capture updates to generated files and docs from make generate. Signed-off-by: Yaowen Mei <[email protected]>
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Fixes #4442
Description
This PR adds support for the int32_arr argument type in tracing policies. This feature is required for tracing syscalls like pipe2(int pipefd[2], int flags), where the kernel returns an array of integers (file descriptors) as an output parameter.
Key Changes: