>From 7f077c98a2328c43a5041a9461a44299a6b1d9ec Mon Sep 17 00:00:00 2001
From: John Soo <jsoo1@asu.edu>
Date: Sat, 13 Jun 2020 14:53:50 -0700
Subject: [PATCH 1/5] gnu: Add libbpf.

* gnu/packages/linux.scm (libbpf): New variable.
---
 gnu/packages/linux.scm | 49 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index b508e1809c..9a7cf73c0d 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -45,6 +45,7 @@
 ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
 ;;; Copyright © 2020 Morgan Smith <Morgan.J.Smith@outlook.com>
+;;; Copyright © 2020 John Soo <jsoo1@asu.edu>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -7139,3 +7140,51 @@ cache data store that is used by network file systems such as @code{AFS} and
 @code{NFS} to cache data locally on disk.  The content of the cache is
 persistent over reboots.")
     (license license:gpl2+)))
+
+(define-public libbpf
+  (let* ((revision "1"))
+    (package
+      (name "libbpf")
+      (version "0.0.9")
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/libbpf/libbpf")
+               (commit (string-append "v" version))))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32
+           "18l0gff7nm841mwhr7bc7x863xcyvwh58zl7mc0amnsjqlbrvqg7"))))
+      (build-system gnu-build-system)
+      (native-inputs
+       `(("pkg-config" ,pkg-config)))
+      (inputs
+       `(("libelf" ,libelf)
+         ("zlib" ,zlib)))
+      (arguments
+       `(#:tests? #f ; No tests
+         #:make-flags
+         (list
+          (string-append "PREFIX=''")
+          (string-append "DESTDIR=" (assoc-ref %outputs "out"))
+          (string-append "LIBDIR=/lib")
+          (string-append
+           "CC=" (assoc-ref %build-inputs "gcc") "/bin/gcc"))
+         #:phases
+         (modify-phases %standard-phases
+           (delete 'configure)
+           (add-before 'build 'pre-build
+             (lambda* (#:key inputs #:allow-other-keys)
+               (substitute* "scripts/check-reallocarray.sh"
+                 (("/bin/rm" rm)
+                  (string-append (assoc-ref inputs "coreutils") rm)))
+               (chdir "src")
+               #t)))))
+      (home-page "https://github.com/libbpf/libbpf")
+      (synopsis "BPF CO-RE (Compile Once – Run Everywhere)")
+      (description
+       "Libbpf supports building BPF CO-RE-enabled applications, which, in
+contrast to BCC, do not require the Clang/LLVM runtime or linux kernel
+headers.")
+      (license `(,license:lgpl2.1 ,license:bsd-2)))))
-- 
2.27.0