From e72977308ce8480d8b3cfa83faaf71a74b9c165d Mon Sep 17 00:00:00 2001
From: Rolf Neugebauer <rolf.neugebauer@docker.com>
Date: Fri, 16 Dec 2016 17:04:43 +0000
Subject: [PATCH] alpine: add Makefile/Dockerfile to build the Linux `perf`
 utility

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
---
 alpine/base/perf/.gitignore |  1 +
 alpine/base/perf/Dockerfile | 17 +++++++++++++++++
 alpine/base/perf/Makefile   |  9 +++++++++
 alpine/base/perf/README.md  |  1 +
 4 files changed, 28 insertions(+)
 create mode 100644 alpine/base/perf/.gitignore
 create mode 100644 alpine/base/perf/Dockerfile
 create mode 100644 alpine/base/perf/Makefile
 create mode 100644 alpine/base/perf/README.md

diff --git a/alpine/base/perf/.gitignore b/alpine/base/perf/.gitignore
new file mode 100644
index 000000000..7447f89a5
--- /dev/null
+++ b/alpine/base/perf/.gitignore
@@ -0,0 +1 @@
+/bin
\ No newline at end of file
diff --git a/alpine/base/perf/Dockerfile b/alpine/base/perf/Dockerfile
new file mode 100644
index 000000000..f38429595
--- /dev/null
+++ b/alpine/base/perf/Dockerfile
@@ -0,0 +1,17 @@
+# Tag: 3da0b0ea0da2724232603094e67c75b41adab551
+FROM mobylinux/alpine-build-c@sha256:0236d6599f6c8f7aa42829285e04202fbe99984df2818af0f5a453a59de8b090
+
+ARG KERNEL_VERSION=4.8.14
+
+# get kernel source and extract it under /linux
+ENV KERNEL_SOURCE=https://www.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VERSION}.tar.xz
+RUN curl -fsSL -o linux-${KERNEL_VERSION}.tar.xz ${KERNEL_SOURCE}
+RUN cat linux-${KERNEL_VERSION}.tar.xz | tar --absolute-names -xJ &&  mv /linux-${KERNEL_VERSION} /linux
+
+RUN mkdir -p /build/perf && \
+    make -C /linux/tools/perf O=/build/perf LDFLAGS=-static
+
+WORKDIR /build/perf
+CMD ["tar", "cf", "-", "perf"]
+    
+    
diff --git a/alpine/base/perf/Makefile b/alpine/base/perf/Makefile
new file mode 100644
index 000000000..08a990463
--- /dev/null
+++ b/alpine/base/perf/Makefile
@@ -0,0 +1,9 @@
+DEPS=Dockerfile
+
+bin/perf: $(DEPS)
+	mkdir -p bin
+	BUILD=$$( docker build -q . ) && \
+	docker run --rm --net=none $$BUILD | tar xf - -C bin
+
+clean:
+	rm -rf bin
diff --git a/alpine/base/perf/README.md b/alpine/base/perf/README.md
new file mode 100644
index 000000000..d1fa03a92
--- /dev/null
+++ b/alpine/base/perf/README.md
@@ -0,0 +1 @@
+Builds a statically linked version of the Linux kernel `perf` utility. You may want to/need to adjust the kernel version in the `Dockerfile` to match your kernel.