sys-process/criu: add patch for >=dev-libs/protobuf-c-1.4.0

Could be adapted to earlier versions in theory.

Closes: https://bugs.gentoo.org/809092
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 308 insertions, 0 deletions

diff --git a/sys-process/criu/criu-3.15-r1.ebuild b/sys-process/criu/criu-3.15-r1.ebuild
new file mode 100644
index 000000000000..bb76d9a19d33
--- /dev/null
+++ b/sys-process/criu/criu-3.15-r1.ebuild
@@ -0,0 +1,140 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{8,9} )
+
+inherit toolchain-funcs linux-info python-r1
+
+DESCRIPTION="utility to checkpoint/restore a process tree"
+HOMEPAGE="https://criu.org/"
+SRC_URI="https://download.openvz.org/criu/${P}.tar.bz2"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64"
+IUSE="doc selinux setproctitle static-libs"
+
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+RDEPEND="
+	${PYTHON_DEPS}
+	>=dev-libs/protobuf-c-1.4.0:=
+	dev-libs/libnl:3
+	net-libs/libnet:1.1
+	sys-libs/libcap
+	selinux? ( sys-libs/libselinux )
+	setproctitle? ( dev-libs/libbsd )"
+DEPEND="${RDEPEND}"
+BDEPEND="
+	doc? (
+		app-text/asciidoc
+		app-text/xmlto
+	)"
+RDEPEND="${RDEPEND}
+	dev-python/protobuf-python[${PYTHON_USEDEP}]"
+
+CONFIG_CHECK="~CHECKPOINT_RESTORE ~NAMESPACES ~PID_NS ~FHANDLE ~EVENTFD ~EPOLL ~INOTIFY_USER
+	~UNIX_DIAG ~INET_DIAG ~INET_UDP_DIAG ~PACKET_DIAG ~NETLINK_DIAG ~TUN ~NETFILTER_XT_MARK"
+
+# root access required for tests
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/2.2/${PN}-2.2-flags.patch
+	"${FILESDIR}"/2.3/${PN}-2.3-no-git.patch
+	"${FILESDIR}"/${PN}-3.12-automagic-libbsd.patch
+	"${FILESDIR}"/${PN}-3.15-pkg-config.patch
+	"${FILESDIR}"/${PN}-3.15-protobuf-c-1.4.0.patch
+)
+
+criu_arch() {
+	# criu infers the arch from $(uname -m).  We never want this to happen.
+	case ${ARCH} in
+		amd64) echo "x86";;
+		arm64) echo "aarch64";;
+		ppc64*) echo "ppc64";;
+		*)     echo "${ARCH}";;
+	esac
+}
+
+pkg_setup() {
+	use amd64 && CONFIG_CHECK+=" ~IA32_EMULATION"
+	linux-info_pkg_setup
+}
+
+src_prepare() {
+	default
+
+	if ! use selinux; then
+		sed \
+			-e 's:libselinux:no_libselinux:g' \
+			-i Makefile.config || die
+	fi
+
+	use doc || sed -i 's_\(install: \)install-man _\1_g' Makefile.install
+}
+
+src_configure() {
+	# Gold linker generates invalid object file when used with criu's custom
+	# linker script.  Use the bfd linker instead. See https://crbug.com/839665#c3
+	tc-ld-disable-gold
+
+	# Build system uses this variable as a trigger to append coverage flags
+	# we'd like to avoid it. https://bugs.gentoo.org/744244
+	unset GCOV
+
+	python_setup
+}
+
+src_compile() {
+	local target="all $(usex doc 'docs' '')"
+	emake \
+		HOSTCC="$(tc-getBUILD_CC)" \
+		CC="$(tc-getCC)" \
+		LD="$(tc-getLD)" \
+		AR="$(tc-getAR)" \
+		PKG_CONFIG="$(tc-getPKG_CONFIG)" \
+		PYTHON="${EPYTHON%.?}" \
+		FULL_PYTHON="${PYTHON%.?}" \
+		OBJCOPY="$(tc-getOBJCOPY)" \
+		LIBDIR="${EPREFIX}/usr/$(get_libdir)" \
+		ARCH="$(criu_arch)" \
+		V=1 WERROR=0 DEBUG=0 \
+		SETPROCTITLE=$(usex setproctitle) \
+		${target}
+}
+
+src_test() {
+	# root privileges are required to dump all necessary info
+	if [[ ${EUID} -eq 0 ]] ; then
+		emake -j1 CC="$(tc-getCC)" ARCH="$(criu_arch)" V=1 WERROR=0 test
+	fi
+}
+
+install_crit() {
+	"${EPYTHON}" scripts/crit-setup.py install --root="${D}" --prefix="${EPREFIX}/usr/" || die
+	python_optimize
+}
+
+src_install() {
+	emake \
+		ARCH="$(criu_arch)" \
+		PREFIX="${EPREFIX}"/usr \
+		PYTHON="${EPYTHON%.?}" \
+		FULL_PYTHON="${PYTHON%.?}" \
+		LOGROTATEDIR="${EPREFIX}"/etc/logrotate.d \
+		DESTDIR="${D}" \
+		LIBDIR="${EPREFIX}/usr/$(get_libdir)" \
+		V=1 WERROR=0 DEBUG=0 \
+		install
+
+	use doc && dodoc CREDITS README.md
+
+	python_foreach_impl install_crit
+
+	if ! use static-libs; then
+		find "${D}" -name "*.a" -delete || die
+	fi
+}
diff --git a/sys-process/criu/files/criu-3.15-protobuf-c-1.4.0.patch b/sys-process/criu/files/criu-3.15-protobuf-c-1.4.0.patch
new file mode 100644
index 000000000000..ea0b9134c683
--- /dev/null
+++ b/sys-process/criu/files/criu-3.15-protobuf-c-1.4.0.patch
@@ -0,0 +1,168 @@
+https://bugs.gentoo.org/809092
+https://github.com/checkpoint-restore/criu/commit/1c25914a5dd1eb385937dffdd85901c3f5e39b8c
+
+From 1c25914a5dd1eb385937dffdd85901c3f5e39b8c Mon Sep 17 00:00:00 2001
+From: Zeyad Yasser <zeyady98@gmail.com>
+Date: Thu, 22 Jul 2021 11:39:34 +0200
+Subject: [PATCH] protobuf: remove leading underscores from protobuf structs
+
+Fixes: #1560
+
+The latest protobuf-c compiler breaks CRIU because they removed
+leading underscores from structs in 1.4.0.
+
+This replaces those definitions with the standard generated structs.
+
+v2: remove struct _VmaEntry, struct _CredsEntry and struct _CoreEntry
+
+Signed-off-by: Zeyad Yasser <zeyady98@gmail.com>
+---
+ criu/include/irmap.h            | 8 +++++---
+ criu/include/parasite-syscall.h | 8 +++-----
+ criu/include/pstree.h           | 2 +-
+ criu/include/rst_info.h         | 5 ++---
+ criu/include/shmem.h            | 1 -
+ criu/mem.c                      | 2 +-
+ lib/c/criu.h                    | 3 ++-
+ 7 files changed, 14 insertions(+), 15 deletions(-)
+
+diff --git a/criu/include/irmap.h b/criu/include/irmap.h
+index 033f71e372..188d753f4d 100644
+--- a/criu/include/irmap.h
++++ b/criu/include/irmap.h
+@@ -1,13 +1,15 @@
+ #ifndef __CR_IRMAP__H__
+ #define __CR_IRMAP__H__
++
++#include "images/fh.pb-c.h"
++
+ char *irmap_lookup(unsigned int s_dev, unsigned long i_ino);
+-struct _FhEntry;
+ int irmap_queue_cache(unsigned int dev, unsigned long ino,
+-		struct _FhEntry *fh);
++		FhEntry *fh);
+ int irmap_predump_prep(void);
+ int irmap_predump_run(void);
+ int check_open_handle(unsigned int s_dev, unsigned long i_ino,
+-		struct _FhEntry *f_handle);
++		FhEntry *f_handle);
+ int irmap_load_cache(void);
+ int irmap_scan_path_add(char *path);
+ #endif
+diff --git a/criu/include/parasite-syscall.h b/criu/include/parasite-syscall.h
+index c86a724fd1..afba95a9e7 100644
+--- a/criu/include/parasite-syscall.h
++++ b/criu/include/parasite-syscall.h
+@@ -11,8 +11,6 @@ struct parasite_dump_misc;
+ struct parasite_drain_fd;
+ struct vm_area_list;
+ struct pstree_item;
+-struct _CredsEntry;
+-struct _CoreEntry;
+ struct list_head;
+ struct cr_imgset;
+ struct fd_opts;
+@@ -31,11 +29,11 @@ extern int parasite_dump_posix_timers_seized(struct proc_posix_timers_stat *proc
+ 		struct parasite_ctl *ctl, struct pstree_item *);
+ 
+ extern int parasite_dump_misc_seized(struct parasite_ctl *ctl, struct parasite_dump_misc *misc);
+-extern int parasite_dump_creds(struct parasite_ctl *ctl, struct _CredsEntry *ce);
+-extern int parasite_dump_thread_leader_seized(struct parasite_ctl *ctl, int pid, struct _CoreEntry *core);
++extern int parasite_dump_creds(struct parasite_ctl *ctl, CredsEntry *ce);
++extern int parasite_dump_thread_leader_seized(struct parasite_ctl *ctl, int pid, CoreEntry *core);
+ extern int parasite_dump_thread_seized(struct parasite_thread_ctl *tctl,
+ 				       struct parasite_ctl *ctl, int id,
+-				       struct pid *tid, struct _CoreEntry *core);
++				       struct pid *tid, CoreEntry *core);
+ extern int dump_thread_core(int pid, CoreEntry *core,
+ 					const struct parasite_dump_thread *dt);
+ 
+diff --git a/criu/include/pstree.h b/criu/include/pstree.h
+index 61ab0ce0eb..17d22e791e 100644
+--- a/criu/include/pstree.h
++++ b/criu/include/pstree.h
+@@ -113,7 +113,7 @@ extern int prepare_task_entries(void);
+ extern int prepare_dummy_task_state(struct pstree_item *pi);
+ 
+ extern int get_task_ids(struct pstree_item *);
+-extern struct _TaskKobjIdsEntry *root_ids;
++extern TaskKobjIdsEntry *root_ids;
+ 
+ extern void core_entry_free(CoreEntry *core);
+ extern CoreEntry *core_entry_alloc(int alloc_thread_info, int alloc_tc);
+diff --git a/criu/include/rst_info.h b/criu/include/rst_info.h
+index 3283849e44..3dc119a931 100644
+--- a/criu/include/rst_info.h
++++ b/criu/include/rst_info.h
+@@ -5,6 +5,7 @@
+ #include "common/list.h"
+ #include "vma.h"
+ #include "kerndat.h"
++#include "images/mm.pb-c.h"
+ 
+ struct task_entries {
+ 	int nr_threads, nr_tasks, nr_helpers;
+@@ -25,8 +26,6 @@ struct fdt {
+ 	futex_t			fdt_lock;
+ };
+ 
+-struct _MmEntry;
+-
+ struct rst_info {
+ 	struct list_head	fds;
+ 
+@@ -40,7 +39,7 @@ struct rst_info {
+ 	struct fdt		*fdt;
+ 
+ 	struct vm_area_list	vmas;
+-	struct _MmEntry		*mm;
++	MmEntry		*mm;
+ 	struct list_head	vma_io;
+ 	unsigned int		pages_img_id;
+ 
+diff --git a/criu/include/shmem.h b/criu/include/shmem.h
+index 9afdb799af..798e28f347 100644
+--- a/criu/include/shmem.h
++++ b/criu/include/shmem.h
+@@ -5,7 +5,6 @@
+ #include "common/lock.h"
+ #include "images/vma.pb-c.h"
+ 
+-struct _VmaEntry;
+ struct vma_area;
+ 
+ extern int collect_shmem(int pid, struct vma_area *vma);
+diff --git a/criu/mem.c b/criu/mem.c
+index 9fabe4c470..b0a76e4da9 100644
+--- a/criu/mem.c
++++ b/criu/mem.c
+@@ -1230,7 +1230,7 @@ static int restore_priv_vma_content(struct pstree_item *t, struct page_read *pr)
+ 
+ static int maybe_disable_thp(struct pstree_item *t, struct page_read *pr)
+ {
+-	struct _MmEntry *mm = rsti(t)->mm;
++	MmEntry *mm = rsti(t)->mm;
+ 
+ 	/*
+ 	 * There is no need to disable it if the page read doesn't
+diff --git a/lib/c/criu.h b/lib/c/criu.h
+index 3d64939584..d2bfbf958c 100644
+--- a/lib/c/criu.h
++++ b/lib/c/criu.h
+@@ -22,6 +22,7 @@
+ #include <stdbool.h>
+ 
+ #include "version.h"
++#include "rpc.pb-c.h"
+ 
+ #ifdef __GNUG__
+ 	extern "C" {
+@@ -112,7 +113,7 @@ void criu_set_pidfd_store_sk(int sk);
+  * some non-existing one is reported.
+  */
+ 
+-typedef struct _CriuNotify *criu_notify_arg_t;
++typedef CriuNotify *criu_notify_arg_t;
+ void criu_set_notify_cb(int (*cb)(char *action, criu_notify_arg_t na));
+ 
+ /* Get pid of root task. 0 if not available */