07af1bab70
This updates vendored runc/libcontainer to 1.1.0, and google/cadvisor to a version updated to runc 1.1.0 (google/cadvisor#3048). Changes in vendor are generated by (roughly): ./hack/pin-dependency.sh github.com/google/cadvisor v0.44.0 ./hack/pin-dependency.sh github.com/opencontainers/runc v1.1.0 ./hack/update-vendor.sh ./hack/lint-dependencies.sh # And follow all its recommendations. ./hack/update-vendor.sh ./hack/update-internal-modules.sh ./hack/lint-dependencies.sh # Re-check everything again. Co-Authored-By: Kir Kolyshkin <kolyshkin@gmail.com>
49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package btf
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import (
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"bytes"
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"github.com/cilium/ebpf/internal"
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)
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// info describes a BTF object.
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type info struct {
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BTF *Spec
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ID ID
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// Name is an identifying name for the BTF, currently only used by the
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// kernel.
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Name string
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// KernelBTF is true if the BTf originated with the kernel and not
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// userspace.
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KernelBTF bool
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}
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func newInfoFromFd(fd *internal.FD) (*info, error) {
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// We invoke the syscall once with a empty BTF and name buffers to get size
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// information to allocate buffers. Then we invoke it a second time with
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// buffers to receive the data.
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bpfInfo, err := bpfGetBTFInfoByFD(fd, nil, nil)
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if err != nil {
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return nil, err
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}
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btfBuffer := make([]byte, bpfInfo.btfSize)
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nameBuffer := make([]byte, bpfInfo.nameLen)
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bpfInfo, err = bpfGetBTFInfoByFD(fd, btfBuffer, nameBuffer)
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if err != nil {
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return nil, err
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}
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spec, err := loadRawSpec(bytes.NewReader(btfBuffer), internal.NativeEndian, nil, nil)
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if err != nil {
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return nil, err
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}
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return &info{
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BTF: spec,
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ID: ID(bpfInfo.id),
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Name: internal.CString(nameBuffer),
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KernelBTF: bpfInfo.kernelBTF != 0,
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}, nil
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}
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