epbf: update github.com/cilium/ebpf

Update ebpf to include PR https://github.com/cilium/ebpf/pull/91.
The update is needed to fix #2316.

Signed-off-by: Alice Frosi <afrosi@de.ibm.com>

go.mod

@@ -4,7 +4,7 @@ go 1.14
 
 require (
 	github.com/checkpoint-restore/go-criu v0.0.0-20191125063657-fcdcd07065c5
-	github.com/cilium/ebpf v0.0.0-20200319110858-a7172c01168f
+	github.com/cilium/ebpf v0.0.0-20200507155900-a9f01edf17e3
 	github.com/containerd/console v1.0.0
 	github.com/coreos/go-systemd/v22 v22.0.0
 	github.com/cyphar/filepath-securejoin v0.2.2

go.sum

@@ -3,6 +3,8 @@ github.com/checkpoint-restore/go-criu v0.0.0-20191125063657-fcdcd07065c5 h1:950d
 github.com/checkpoint-restore/go-criu v0.0.0-20191125063657-fcdcd07065c5/go.mod h1:TrMrLQfeENAPYPRsJuq3jsqdlRh3lvi6trTZJG8+tho=
 github.com/cilium/ebpf v0.0.0-20200319110858-a7172c01168f h1:W1RQPz3nR8RxUw/Uqk71GU3JlZ7pNa1pXrHs98h0o9U=
 github.com/cilium/ebpf v0.0.0-20200319110858-a7172c01168f/go.mod h1:XT+cAw5wfvsodedcijoh1l9cf7v1x9FlFB/3VmF/O8s=
+github.com/cilium/ebpf v0.0.0-20200507155900-a9f01edf17e3 h1:qcqzLJa2xCo9sgdCzpT/SJSYxROTEstuhf7ZBHMirms=
+github.com/cilium/ebpf v0.0.0-20200507155900-a9f01edf17e3/go.mod h1:XT+cAw5wfvsodedcijoh1l9cf7v1x9FlFB/3VmF/O8s=
 github.com/containerd/console v1.0.0 h1:fU3UuQapBs+zLJu82NhR11Rif1ny2zfMMAyPJzSN5tQ=
 github.com/containerd/console v1.0.0/go.mod h1:8Pf4gM6VEbTNRIT26AyyU7hxdQU3MvAvxVI0sc00XBE=
 github.com/coreos/go-systemd/v22 v22.0.0 h1:XJIw/+VlJ+87J+doOxznsAWIdmWuViOVhkQamW5YV28=

vendor/github.com/cilium/ebpf/asm/instruction.go

@@ -3,6 +3,7 @@ package asm
 import (
 	"encoding/binary"
 	"fmt"
+	"github.com/cilium/ebpf/internal"
 	"io"
 	"math"
 	"strings"
@@ -433,15 +434,27 @@ type bpfInstruction struct {
 type bpfRegisters uint8
 
 func newBPFRegisters(dst, src Register) bpfRegisters {
-	return bpfRegisters((src << 4) | (dst & 0xF))
+	if internal.NativeEndian == binary.LittleEndian {
+		return bpfRegisters((src << 4) | (dst & 0xF))
+	} else {
+		return bpfRegisters((dst << 4) | (src & 0xF))
+	}
 }
 
 func (r bpfRegisters) Dst() Register {
-	return Register(r & 0xF)
+	if internal.NativeEndian == binary.LittleEndian {
+		return Register(r & 0xF)
+	}else {
+		return Register(r >> 4)
+	}
 }
 
 func (r bpfRegisters) Src() Register {
-	return Register(r >> 4)
+	if internal.NativeEndian == binary.LittleEndian {
+		return Register(r >> 4)
+	} else {
+		return Register(r & 0xf)
+	}
 }
 
 type unreferencedSymbolError struct {

vendor/github.com/cilium/ebpf/internal/unix/types_linux.go

@@ -36,6 +36,7 @@ const (
 	PERF_SAMPLE_RAW          = linux.PERF_SAMPLE_RAW
 	PERF_FLAG_FD_CLOEXEC     = linux.PERF_FLAG_FD_CLOEXEC
 	RLIM_INFINITY            = linux.RLIM_INFINITY
+	RLIMIT_MEMLOCK           = linux.RLIMIT_MEMLOCK
 )
 
 // Statfs_t is a wrapper

vendor/github.com/cilium/ebpf/internal/unix/types_other.go

@@ -38,6 +38,7 @@ const (
 	PERF_SAMPLE_RAW          = 0x400
 	PERF_FLAG_FD_CLOEXEC     = 0x8
 	RLIM_INFINITY            = 0x7fffffffffffffff
+	RLIMIT_MEMLOCK           = 8
 )
 
 // Statfs_t is a wrapper

vendor/github.com/cilium/ebpf/run-tests.sh

@@ -44,7 +44,7 @@ readonly tmp_dir="${TMPDIR:-$(mktemp -d)}"
 
 test -e "${tmp_dir}/${kernel}" || {
   echo Fetching "${kernel}"
-  curl --fail -L "https://github.com/newtools/ci-kernels/blob/master/${kernel}?raw=true" -o "${tmp_dir}/${kernel}"
+  curl --fail -L "https://github.com/cilium/ci-kernels/blob/master/${kernel}?raw=true" -o "${tmp_dir}/${kernel}"
 }
 
 echo Testing on "${kernel_version}"

vendor/modules.txt

@@ -1,7 +1,7 @@
 # github.com/checkpoint-restore/go-criu v0.0.0-20191125063657-fcdcd07065c5
 ## explicit
 github.com/checkpoint-restore/go-criu/rpc
-# github.com/cilium/ebpf v0.0.0-20200319110858-a7172c01168f
+# github.com/cilium/ebpf v0.0.0-20200507155900-a9f01edf17e3
 ## explicit
 github.com/cilium/ebpf
 github.com/cilium/ebpf/asm