Making things work

2 files changed, 52 insertions, 0 deletions

diff --git a/repo/libbpf/10-consolidate-lib-dirs.patch b/repo/libbpf/10-consolidate-lib-dirs.patch
new file mode 100644
index 0000000..8a270b7
--- /dev/null
+++ b/repo/libbpf/10-consolidate-lib-dirs.patch
@@ -0,0 +1,19 @@
+Alpine doesn't recognize lib64 directories by default, so we consolidate into lib.
+
+diff --git a/src/Makefile b/src/Makefile
+index e9021fe..1d86ecd 100644
+--- a/src/Makefile
++++ b/src/Makefile
+@@ -61,11 +61,7 @@ INSTALL = install
+ 
+ DESTDIR ?=
+ 
+-ifeq ($(filter-out %64 %64be %64eb %64le %64el s390x, $(shell uname -m)),)
+-	LIBSUBDIR := lib64
+-else
+-	LIBSUBDIR := lib
+-endif
++LIBSUBDIR := lib
+ 
+ # By default let the pc file itself use ${prefix} in includedir/libdir so that
+ # the prefix can be overridden at runtime (eg: --define-prefix)
diff --git a/repo/libbpf/libbpf.xibuild b/repo/libbpf/libbpf.xibuild
new file mode 100644
index 0000000..0e4993d
--- /dev/null
+++ b/repo/libbpf/libbpf.xibuild
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+NAME="libbpf"
+DESC="A library for interacting with the Linux kernel's Berkeley Packet Filter (BPF) facility from user space"
+
+MAKEDEPS="linux-headers elfutils zlib"
+
+PKG_VER=1.0.1
+SOURCE="https://github.com/libbpf/libbpf/archive/refs/tags/v$PKG_VER.tar.gz"
+
+ADDITIONAL="
+10-consolidate-lib-dirs.patch
+"
+
+build() {
+	cd src
+	make NO_PKG_CONFIG=1
+}
+
+check() {
+	echo "#include \"$BUILD_ROOT/src/btf.h\"" | gcc -xc -c -o /dev/null -
+}
+
+package() {
+	cd src
+	make install DESTDIR="$PKG_DEST"
+	# install somewhere out of the way that will hopefully not be included by mistake
+	mkdir -p "$PKG_DEST/usr/include/bpf/uapi/linux"
+	for header in bpf.h bpf_common.h btf.h; do
+		cp "$BUILD_ROOT/include/uapi/linux/$header" "$PKG_DEST/usr/include/bpf/uapi/linux/"
+	done
+}
+