From 57dc742c76d7876a2457594715a7b5bc2c9a92bd Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 3 Apr 2023 11:16:17 +0200
Subject: [chore]: Bump github.com/KimMachineGun/automemlimit from 0.2.4 to
 0.2.5 (#1666)

Bumps [github.com/KimMachineGun/automemlimit](https://github.com/KimMachineGun/automemlimit) from 0.2.4 to 0.2.5.
- [Release notes](https://github.com/KimMachineGun/automemlimit/releases)
- [Commits](https://github.com/KimMachineGun/automemlimit/compare/v0.2.4...v0.2.5)

---
updated-dependencies:
- dependency-name: github.com/KimMachineGun/automemlimit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .../github.com/cilium/ebpf/internal/sys/syscall.go | 126 +++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 vendor/github.com/cilium/ebpf/internal/sys/syscall.go

(limited to 'vendor/github.com/cilium/ebpf/internal/sys/syscall.go')

diff --git a/vendor/github.com/cilium/ebpf/internal/sys/syscall.go b/vendor/github.com/cilium/ebpf/internal/sys/syscall.go
new file mode 100644
index 000000000..2a5935dc9
--- /dev/null
+++ b/vendor/github.com/cilium/ebpf/internal/sys/syscall.go
@@ -0,0 +1,126 @@
+package sys
+
+import (
+	"runtime"
+	"syscall"
+	"unsafe"
+
+	"github.com/cilium/ebpf/internal/unix"
+)
+
+// BPF wraps SYS_BPF.
+//
+// Any pointers contained in attr must use the Pointer type from this package.
+func BPF(cmd Cmd, attr unsafe.Pointer, size uintptr) (uintptr, error) {
+	for {
+		r1, _, errNo := unix.Syscall(unix.SYS_BPF, uintptr(cmd), uintptr(attr), size)
+		runtime.KeepAlive(attr)
+
+		// As of ~4.20 the verifier can be interrupted by a signal,
+		// and returns EAGAIN in that case.
+		if errNo == unix.EAGAIN && cmd == BPF_PROG_LOAD {
+			continue
+		}
+
+		var err error
+		if errNo != 0 {
+			err = wrappedErrno{errNo}
+		}
+
+		return r1, err
+	}
+}
+
+// Info is implemented by all structs that can be passed to the ObjInfo syscall.
+//
+//    MapInfo
+//    ProgInfo
+//    LinkInfo
+//    BtfInfo
+type Info interface {
+	info() (unsafe.Pointer, uint32)
+}
+
+var _ Info = (*MapInfo)(nil)
+
+func (i *MapInfo) info() (unsafe.Pointer, uint32) {
+	return unsafe.Pointer(i), uint32(unsafe.Sizeof(*i))
+}
+
+var _ Info = (*ProgInfo)(nil)
+
+func (i *ProgInfo) info() (unsafe.Pointer, uint32) {
+	return unsafe.Pointer(i), uint32(unsafe.Sizeof(*i))
+}
+
+var _ Info = (*LinkInfo)(nil)
+
+func (i *LinkInfo) info() (unsafe.Pointer, uint32) {
+	return unsafe.Pointer(i), uint32(unsafe.Sizeof(*i))
+}
+
+var _ Info = (*BtfInfo)(nil)
+
+func (i *BtfInfo) info() (unsafe.Pointer, uint32) {
+	return unsafe.Pointer(i), uint32(unsafe.Sizeof(*i))
+}
+
+// ObjInfo retrieves information about a BPF Fd.
+//
+// info may be one of MapInfo, ProgInfo, LinkInfo and BtfInfo.
+func ObjInfo(fd *FD, info Info) error {
+	ptr, len := info.info()
+	err := ObjGetInfoByFd(&ObjGetInfoByFdAttr{
+		BpfFd:   fd.Uint(),
+		InfoLen: len,
+		Info:    NewPointer(ptr),
+	})
+	runtime.KeepAlive(fd)
+	return err
+}
+
+// BPFObjName is a null-terminated string made up of
+// 'A-Za-z0-9_' characters.
+type ObjName [unix.BPF_OBJ_NAME_LEN]byte
+
+// NewObjName truncates the result if it is too long.
+func NewObjName(name string) ObjName {
+	var result ObjName
+	copy(result[:unix.BPF_OBJ_NAME_LEN-1], name)
+	return result
+}
+
+// LinkID uniquely identifies a bpf_link.
+type LinkID uint32
+
+// BTFID uniquely identifies a BTF blob loaded into the kernel.
+type BTFID uint32
+
+// wrappedErrno wraps syscall.Errno to prevent direct comparisons with
+// syscall.E* or unix.E* constants.
+//
+// You should never export an error of this type.
+type wrappedErrno struct {
+	syscall.Errno
+}
+
+func (we wrappedErrno) Unwrap() error {
+	return we.Errno
+}
+
+type syscallError struct {
+	error
+	errno syscall.Errno
+}
+
+func Error(err error, errno syscall.Errno) error {
+	return &syscallError{err, errno}
+}
+
+func (se *syscallError) Is(target error) bool {
+	return target == se.error
+}
+
+func (se *syscallError) Unwrap() error {
+	return se.errno
+}
-- 
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