[Buildroot] [PATCH 1/2] package/criu: new package

[Marcus Folkesson]

Checkpoint/Restore In Userspace (CRIU), is a software tool for the Linux operating system to make it possible to freeze a running
application and checkpoint it to persistent storage as a collection of files.

Signed-off-by: Marcus Folkesson <marcus.folkesson at gmail.com>
---
 package/Config.in      |  1 +
 package/criu/Config.in | 28 ++++++++++++++++++++++++++++
 package/criu/criu.hash |  3 +++
 package/criu/criu.mk   | 42 ++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 74 insertions(+)
 create mode 100644 package/criu/Config.in
 create mode 100644 package/criu/criu.hash
 create mode 100644 package/criu/criu.mk

diff --git a/package/Config.in b/package/Config.in
index b21a2f8c65..c6c809f59c 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -2665,6 +2665,7 @@ menu "System tools"
 	source "package/coreutils/Config.in"
 	source "package/cpulimit/Config.in"
 	source "package/cpuload/Config.in"
+	source "package/criu/Config.in"
 	source "package/crun/Config.in"
 	source "package/daemon/Config.in"
 	source "package/dc3dd/Config.in"
diff --git a/package/criu/Config.in b/package/criu/Config.in
new file mode 100644
index 0000000000..158e7ced57
--- /dev/null
+++ b/package/criu/Config.in
@@ -0,0 +1,28 @@
+menuconfig BR2_PACKAGE_CRIU
+	bool "criu"
+	depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
+	depends on BR2_PACKAGE_LIBBSD_ARCH_SUPPORTS
+	depends on BR2_INSTALL_LIBSTDCPP # protobuf
+	depends on BR2_TOOLCHAIN_HAS_THREADS # protobuf, libnl
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # protobuf
+	depends on !BR2_TOOLCHAIN_USES_MUSL
+	depends on !BR2_STATIC_LIBS # protobuf, libbsd
+	depends on BR2_USE_WCHAR #libbsd
+	depends on BR2_USE_MMU #libcap
+	select BR2_PACKAGE_HOST_PYTHON3_SSL
+	select BR2_PACKAGE_PROTOBUF
+	select BR2_PACKAGE_PROTOBUF_C
+	select BR2_PACKAGE_LIBAIO
+	select BR2_PACKAGE_LIBBSD
+	select BR2_PACKAGE_LIBCAP
+	select BR2_PACKAGE_LIBNET
+	select BR2_PACKAGE_LIBNL
+	select BR2_PACKAGE_PYTHON3
+	select BR2_PACKAGE_PYTHON_PIP
+	help
+	  Checkpoint/Restore In Userspace (CRIU), is a software tool for the Linux operating system to make it possible to freeze a running 
+	  application and checkpoint it to persistent storage as a collection of files.
+
+comment "criu needs a uClibc or glibc toolchain w/ threads, dynamic library, wchar"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS \
+		|| !BR2_USE_WCHAR || BR2_TOOLCHAIN_USES_MUSL
diff --git a/package/criu/criu.hash b/package/criu/criu.hash
new file mode 100644
index 0000000000..2c4a07252b
--- /dev/null
+++ b/package/criu/criu.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  6a9997981c9fe4730c848ce59346b3a22fad69b803607cb67a3f6ec0557fa474  criu-3.18.tar.gz
+sha256  568a1fa9d90e18a1a1a61ea58ec2eece16b56a5042cc72c1b4f8d4455ae6fcb7  COPYING
diff --git a/package/criu/criu.mk b/package/criu/criu.mk
new file mode 100644
index 0000000000..01b07e3f3f
--- /dev/null
+++ b/package/criu/criu.mk
@@ -0,0 +1,42 @@
+################################################################################
+#
+# CRIU
+#
+################################################################################
+
+CRIU_VERSION = 3.18
+CRIU_SOURCE = criu-$(CRIU_VERSION).tar.gz
+CRIU_SITE = https://github.com/checkpoint-restore/criu/archive/refs/tags/v$(CRIU_VERSION)
+
+CRIU_LICENSE = GPL-2.0
+CRIU_LICENSE_FILES = COPYING
+CRIU_DEPENDENCIES = host-pkgconf host-protobuf-c host-python3 host-python-pip libaio libbsd libcap libnet libnl protobuf protobuf-c python3
+
+CRIU_CFLAGS = $(TARGET_CFLAGS)
+CRIU_CFLAGS += -D__WORDSIZE -D__USE_GNU -D_GNU_SOURCE
+
+CRIU_MAKE_ENV = $(TARGET_MAKE_ENV)
+CRIU_MAKE_ENV += WERROR=0
+
+#Needed as it adds strange paths to the tool otherwise. E.g.  $CROSS_COMPILE/usr/bin/gcc
+CRIU_MAKE_ENV += HOSTLD=ld
+CRIU_MAKE_ENV += HOSTCC=gcc
+
+#x86_64 is treated as x86 in criu
+ifeq ($(BR2_ARCH),x86_64)
+	CRIU_MAKE_ENV += ARCH=x86
+else
+	CRIU_MAKE_ENV += ARCH=$(BR2_ARCH)
+endif
+
+define CRIU_BUILD_CMDS
+    rm -rf $(@D)/images/google/protobuf/descriptor.proto
+    ln -s  $(STAGING_DIR)/usr/include/google/protobuf/descriptor.proto $(@D)/images/google/protobuf/descriptor.proto
+	$(CRIU_MAKE_ENV) $(MAKE) USERCFLAGS="$(CRIU_CFLAGS)" -C $(@D)
+endef
+
+define CRIU_INSTALL_TARGET_CMDS
+	$(CRIU_MAKE_ENV) $(MAKE) DESTDIR=$(TARGET_DIR) PREFIX=/usr -C $(@D) install-criu install-lib install-compel
+endef
+
+$(eval $(generic-package))
-- 
2.41.0