sys-apps/systemd: fix build failure on ia64/alpha

Bug: https://bugs.gentoo.org/623536
Bug: https://bugs.gentoo.org/612102
Package-Manager: Portage-2.3.6_p9, Repoman-2.3.2_p77

2 files changed, 85 insertions, 0 deletions

diff --git a/sys-apps/systemd/files/233-format-warnings.patch b/sys-apps/systemd/files/233-format-warnings.patch
new file mode 100644
index 000000000000..7bb08f0a3201
--- /dev/null
+++ b/sys-apps/systemd/files/233-format-warnings.patch
@@ -0,0 +1,84 @@
+From 3e7d14d78c4d15ec7789299216cbf5c58e61547b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
+Date: Sat, 3 Jun 2017 05:41:17 -0400
+Subject: [PATCH] sd-bus: silence format warnings in kdbus code (#6072)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The code is mostly correct, but gcc is trying to outsmart us, and emits a
+warning for a "llu vs lu" mismatch, even though they are the same size (on alpha):
+
+src/libsystemd/sd-bus/bus-control.c: In function ‘kernel_get_list’:
+src/libsystemd/sd-bus/bus-control.c:267:42: error: format ‘%llu’ expects argument of type ‘long long unsigned int’, but argument 3 has type ‘__u64 {aka long unsigned int}’ [-Werror=format=]
+                         if (asprintf(&n, ":1.%llu", name->id) < 0) {
+                                          ^
+src/libsystemd/sd-bus/bus-control.c: In function ‘bus_get_name_creds_kdbus’:
+src/libsystemd/sd-bus/bus-control.c:714:47: error: format ‘%llu’ expects argument of type ‘long long unsigned int’, but argument 3 has type ‘__u64 {aka long unsigned int}’ [-Werror=format=]
+                 if (asprintf(&c->unique_name, ":1.%llu", conn_info->id) < 0) {
+                                               ^
+This is hard to work around properly, because kdbus.h uses __u64 which is
+defined-differently-despite-being-the-same-size then uint64_t. Thus the simple
+solution of using %PRIu64 fails on amd64:
+
+src/libsystemd/sd-bus/bus-control.c:714:47: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘__u64 {aka long long unsigned int}’ [-Werror=format=]
+                 if (asprintf(&c->unique_name, ":1.%"PRIu64, conn_info->id) < 0) {
+                                               ^~~~~~
+
+Let's just avoid the whole issue for now by silencing the warning.
+After the next release, we should just get rid of the kdbus code.
+
+Fixes #5561.
+---
+ src/libsystemd/sd-bus/bus-control.c | 6 ++++++
+ src/libsystemd/sd-bus/bus-kernel.c  | 2 ++
+ 2 files changed, 8 insertions(+)
+
+diff --git a/src/libsystemd/sd-bus/bus-control.c b/src/libsystemd/sd-bus/bus-control.c
+index 9e58ffbd8..303ae0f23 100644
+--- a/src/libsystemd/sd-bus/bus-control.c
++++ b/src/libsystemd/sd-bus/bus-control.c
+@@ -264,10 +264,13 @@ static int kernel_get_list(sd_bus *bus, uint64_t flags, char ***x) {
+                 if ((flags & KDBUS_LIST_UNIQUE) && name->id != previous_id && !(name->flags & KDBUS_HELLO_ACTIVATOR)) {
+                         char *n;
+ 
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wformat"
+                         if (asprintf(&n, ":1.%llu", name->id) < 0) {
+                                 r = -ENOMEM;
+                                 goto fail;
+                         }
++#pragma GCC diagnostic pop
+ 
+                         r = strv_consume(x, n);
+                         if (r < 0)
+@@ -711,10 +714,13 @@ int bus_get_name_creds_kdbus(
+         }
+ 
+         if (mask & SD_BUS_CREDS_UNIQUE_NAME) {
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wformat"
+                 if (asprintf(&c->unique_name, ":1.%llu", conn_info->id) < 0) {
+                         r = -ENOMEM;
+                         goto fail;
+                 }
++#pragma GCC diagnostic pop
+ 
+                 c->mask |= SD_BUS_CREDS_UNIQUE_NAME;
+         }
+diff --git a/src/libsystemd/sd-bus/bus-kernel.c b/src/libsystemd/sd-bus/bus-kernel.c
+index c82caeb3f..ca6aee7c0 100644
+--- a/src/libsystemd/sd-bus/bus-kernel.c
++++ b/src/libsystemd/sd-bus/bus-kernel.c
+@@ -51,6 +51,8 @@
+ #include "user-util.h"
+ #include "util.h"
+ 
++#pragma GCC diagnostic ignored "-Wformat"
++
+ #define UNIQUE_NAME_MAX (3+DECIMAL_STR_MAX(uint64_t))
+ 
+ int bus_kernel_parse_unique_name(const char *s, uint64_t *id) {
+-- 
+2.13.2
+
diff --git a/sys-apps/systemd/systemd-233-r3.ebuild b/sys-apps/systemd/systemd-233-r3.ebuild
index 8210bd8a2f90..ab19c28efc04 100644
--- a/sys-apps/systemd/systemd-233-r3.ebuild
+++ b/sys-apps/systemd/systemd-233-r3.ebuild
@@ -155,6 +155,7 @@ src_prepare() {
 	local PATCHES=(
 		"${FILESDIR}/233-0001-Avoid-strict-DM-interface-version-dependencies-5519.patch"
 		"${FILESDIR}/233-CVE-2017-9445.patch"
+		"${FILESDIR}/233-format-warnings.patch"
 	)
 
 	if ! use vanilla; then