package/systemd: fix statx support with glibc >= 2.28

Backport 2 patches fixing statx redefinition:

  In file included from ../src/basic/missing.h:18,
     from ../src/basic/util.h:28,
     from ../src/basic/hashmap.h:10,
     from ../src/shared/bus-util.h:12,
     from ../src/libsystemd/sd-bus/bus-creds.c:11:
     /usr/include/linux/stat.h:99:8: error: redefinition of ‘struct statx’

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Romain Naour 2018-08-03 20:14:24 +02:00 committed by Thomas Petazzoni
parent 4dc6c43703
commit 7eed608713
2 changed files with 188 additions and 0 deletions

View file

@ -0,0 +1,111 @@
From ebe5606eadb1241796ba9747d8e357bd6b3e912e Mon Sep 17 00:00:00 2001
From: Filipe Brandenburger <filbranden@google.com>
Date: Sun, 15 Jul 2018 22:43:35 -0700
Subject: [PATCH] build-sys: Detect whether struct statx is defined in
sys/stat.h
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Starting with glibc 2.27.9000-36.fc29, include file sys/stat.h will have a
definition for struct statx, in which case include file linux/stat.h should be
avoided, in order to prevent a duplicate definition.
In file included from ../src/basic/missing.h:18,
from ../src/basic/util.h:28,
from ../src/basic/hashmap.h:10,
from ../src/shared/bus-util.h:12,
from ../src/libsystemd/sd-bus/bus-creds.c:11:
/usr/include/linux/stat.h:99:8: error: redefinition of struct statx
struct statx {
^~~~~
In file included from /usr/include/sys/stat.h:446,
from ../src/basic/util.h:19,
from ../src/basic/hashmap.h:10,
from ../src/shared/bus-util.h:12,
from ../src/libsystemd/sd-bus/bus-creds.c:11:
/usr/include/bits/statx.h:36:8: note: originally defined here
struct statx
^~~~~
Extend our meson.build to look for struct statx when only sys/stat.h is
included and, in that case, do not include linux/stat.h anymore.
Tested that systemd builds correctly when using a glibc version that includes a
definition for struct statx.
glibc Fedora RPM update:
https://src.fedoraproject.org/rpms/glibc/c/28cb5d31fc1e5887912283c889689c47076278ae
glibc upstream commit:
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=fd70af45528d59a00eb3190ef6706cb299488fcd
(cherry picked from commit 75720bff62a84896e9a0654afc7cf9408cf89a38)
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
meson.build | 5 +++++
src/basic/missing.h | 5 ++++-
src/basic/xattr-util.c | 1 -
3 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/meson.build b/meson.build
index 04331dd41..a0e724070 100644
--- a/meson.build
+++ b/meson.build
@@ -425,6 +425,7 @@ decl_headers = '''
#include <sys/stat.h>
'''
# FIXME: key_serial_t is only defined in keyutils.h, this is bound to fail
+# FIXME: these should use -D_GNU_SOURCE, since that is defined at build time
foreach decl : ['char16_t',
'char32_t',
@@ -439,6 +440,10 @@ foreach decl : ['char16_t',
conf.set10('HAVE_' + decl.underscorify().to_upper(), have)
endforeach
+conf.set10('HAVE_STRUCT_STATX_IN_SYS_STAT_H', cc.sizeof('struct statx', prefix : '''
+#include <sys/stat.h>
+''', args : '-D_GNU_SOURCE') > 0)
+
foreach decl : [['IFLA_INET6_ADDR_GEN_MODE', 'linux/if_link.h'],
['IN6_ADDR_GEN_MODE_STABLE_PRIVACY', 'linux/if_link.h'],
['IFLA_VRF_TABLE', 'linux/if_link.h'],
diff --git a/src/basic/missing.h b/src/basic/missing.h
index 71a07d057..14ad3d491 100644
--- a/src/basic/missing.h
+++ b/src/basic/missing.h
@@ -15,7 +15,6 @@
#include <linux/neighbour.h>
#include <linux/oom.h>
#include <linux/rtnetlink.h>
-#include <linux/stat.h>
#include <net/ethernet.h>
#include <stdlib.h>
#include <sys/resource.h>
@@ -25,6 +24,10 @@
#include <uchar.h>
#include <unistd.h>
+#if !HAVE_STRUCT_STATX_IN_SYS_STAT_H
+#include <linux/stat.h>
+#endif
+
#if HAVE_AUDIT
#include <libaudit.h>
#endif
diff --git a/src/basic/xattr-util.c b/src/basic/xattr-util.c
index c5c55ea84..0ee097983 100644
--- a/src/basic/xattr-util.c
+++ b/src/basic/xattr-util.c
@@ -2,7 +2,6 @@
#include <errno.h>
#include <fcntl.h>
-#include <linux/stat.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
--
2.14.4

View file

@ -0,0 +1,77 @@
From 17bd864a04a0583cfb343c5621b591bdd76d79ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Wed, 18 Jul 2018 17:26:17 +0200
Subject: [PATCH] meson: unify linux/stat.h check with other checks and use
_GNU_SOURCE
Using _GNU_SOURCE is better because that's how we include the headers in the
actual build, and some headers define different stuff when it is defined.
sys/stat.h for example defines 'struct statx' conditionally.
(cherry picked from commit 9c869d08d82c73f62ab3527567858ce4b0cf1257)
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
meson.build | 20 ++++++++++++++------
src/basic/missing.h | 2 +-
2 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/meson.build b/meson.build
index a0e724070..5dcabdc6c 100644
--- a/meson.build
+++ b/meson.build
@@ -421,11 +421,9 @@ decl_headers = '''
#include <uchar.h>
#include <linux/ethtool.h>
#include <linux/fib_rules.h>
-#include <linux/stat.h>
#include <sys/stat.h>
'''
# FIXME: key_serial_t is only defined in keyutils.h, this is bound to fail
-# FIXME: these should use -D_GNU_SOURCE, since that is defined at build time
foreach decl : ['char16_t',
'char32_t',
@@ -436,13 +434,23 @@ foreach decl : ['char16_t',
]
# We get -1 if the size cannot be determined
- have = cc.sizeof(decl, prefix : decl_headers) > 0
+ have = cc.sizeof(decl, prefix : decl_headers, args : '-D_GNU_SOURCE') > 0
+
+ if decl == 'struct statx'
+ if have
+ want_linux_stat_h = false
+ else
+ have = cc.sizeof(decl,
+ prefix : decl_headers + '#include <linux/stat.h>',
+ args : '-D_GNU_SOURCE') > 0
+ want_linux_stat_h = have
+ endif
+ endif
+
conf.set10('HAVE_' + decl.underscorify().to_upper(), have)
endforeach
-conf.set10('HAVE_STRUCT_STATX_IN_SYS_STAT_H', cc.sizeof('struct statx', prefix : '''
-#include <sys/stat.h>
-''', args : '-D_GNU_SOURCE') > 0)
+conf.set10('WANT_LINUX_STAT_H', want_linux_stat_h)
foreach decl : [['IFLA_INET6_ADDR_GEN_MODE', 'linux/if_link.h'],
['IN6_ADDR_GEN_MODE_STABLE_PRIVACY', 'linux/if_link.h'],
diff --git a/src/basic/missing.h b/src/basic/missing.h
index 14ad3d491..9044683b1 100644
--- a/src/basic/missing.h
+++ b/src/basic/missing.h
@@ -24,7 +24,7 @@
#include <uchar.h>
#include <unistd.h>
-#if !HAVE_STRUCT_STATX_IN_SYS_STAT_H
+#if WANT_LINUX_STAT_H
#include <linux/stat.h>
#endif
--
2.14.4