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Merge pull request #3972 from brauner/2021-09-15.fixes

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build: ensure all relevant calls are checked for availability at buil…
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Stéphane Graber 2021-09-15 10:15:53 -04:00 committed by GitHub
commit cf5599324d
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4 changed files with 78 additions and 58 deletions
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98
meson.build
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@ -4,6 +4,7 @@ project('lxc', 'c',
version : '4.0.0',
license : 'LGPLv2+',
default_options: [
'b_lto=true',
'b_colorout=always',
'b_asneeded=true',
'b_pie=true',
@ -199,45 +200,55 @@ foreach decl : [
endforeach
foreach ident : [
['memfd_create', '''#include <sys/mman.h>'''],
['bpf', '''#include <sys/syscall.h>
#include <unistd.h>'''],
['close_range', '''#include <unistd.h>'''],
['execveat', '''#include <unistd.h>'''],
['faccessat', '''#include <fcntl.h>
#include <unistd.h>'''],
['fexecve', '''#include <unistd.h>'''],
['fsconfig', '''#include <sys/mount.h>'''],
['fsmount', '''#include <sys/mount.h>'''],
['fsopen', '''#include <sys/mount.h>'''],
['fspick', '''#include <sys/mount.h>'''],
['gettid', '''#include <sys/types.h>
#include <unistd.h>'''],
['pivot_root', '''#include <stdlib.h>
#include <unistd.h>'''], # no known header declares pivot_root
['setns', '''#include <sched.h>'''],
['renameat2', '''#include <stdio.h>
#include <fcntl.h>'''],
['kcmp', '''#include <linux/kcmp.h>'''],
['keyctl', '''#include <sys/types.h>
#include <keyutils.h>'''],
['bpf', '''#include <sys/syscall.h>
#include <unistd.h>'''],
['statx', '''#include <sys/types.h>
['memfd_create', '''#include <sys/mman.h>'''],
['mount_setattr', '''#include <sys/mount.h>'''],
['move_mount', '''#include <sys/mount.h>'''],
['openat2', '''#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>'''],
['pidfd_send_signal', '''#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sys/wait.h>'''],
#include <fctnl.h>'''],
['open_tree', '''#include <sys/mount.h>'''],
['personality', '''#include <sys/personality.h>'''],
['pidfd_open', '''#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sys/wait.h>'''],
['execveat', '''#include <unistd.h>'''],
['close_range', '''#include <unistd.h>'''],
['mount_setattr', '''#include <sys/mount.h>'''],
['move_mount', '''#include <sys/mount.h>'''],
['open_tree', '''#include <sys/mount.h>'''],
['strlcpy', '''#include <string.h>'''],
['strlcat', '''#include <string.h>'''],
['sethostname', '''#include <unistd.h>'''],
['faccessat', '''#include <fcntl.h>
#include <unistd.h>'''],
['unshare', '''#include <sched.h>'''],
['pidfd_send_signal', '''#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sys/wait.h>'''],
['pivot_root', '''#include <stdlib.h>
#include <unistd.h>'''], # no known header declares pivot_root
['prlimit', '''#include <sys/time.h>
#include <sys/resource.h>'''],
['prlimit64', '''#include <sys/time.h>
#include <sys/resource.h>'''],
['renameat2', '''#include <stdio.h>
#include <fcntl.h>'''],
['sethostname', '''#include <unistd.h>'''],
['setns', '''#include <sched.h>'''],
['signalfd', '''#include <sys/signalfd.h>'''],
['statx', '''#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>'''],
['strlcat', '''#include <string.h>'''],
['strlcpy', '''#include <string.h>'''],
['unshare', '''#include <sched.h>'''],
]
if cc.has_function(ident[0], prefix : ident[1], args : '-D_GNU_SOURCE')
@ -509,30 +520,37 @@ found_syscalls = []
missing_syscalls = []
foreach tuple : [
['bpf'],
['close_range'],
['execveat'],
['faccessat'],
['fexecve'],
['memfd_create'],
['fsconfig'],
['fsmount'],
['fsopen'],
['fspick'],
['gettid'],
['pivot_root'],
['setns'],
['renameat2'],
['kcmp'],
['keyctl'],
['bpf'],
['statx'],
['pidfd_send_signal'],
['pidfd_open'],
['execveat'],
['close_range'],
['memfd_create'],
['mount_setattr'],
['move_mount'],
['openat2'],
['open_tree'],
['strlcpy'],
['strlcat'],
['sethostname'],
['faccessat'],
['unshare'],
['personality'],
['pidfd_open'],
['pidfd_send_signal'],
['pivot_root'],
['prlimit'],
['prlimit64'],
['renameat2'],
['sethostname'],
['setns'],
['signalfd'],
['statx'],
['strlcat'],
['strlcpy'],
['unshare'],
]
if tuple.length() >= 2

2
src/lxc/cgroups/cgfsng.c
View File

@ -30,9 +30,9 @@
#include <sys/types.h>
#include <unistd.h>
#include "cgroup.h"
#include "af_unix.h"
#include "caps.h"
#include "cgroup.h"
#include "cgroup2_devices.h"
#include "cgroup_utils.h"
#include "commands.h"

2
src/lxc/cgroups/cgroup.h
View File

@ -313,7 +313,7 @@ static inline int cgroup_unified_fd(const struct cgroup_ops *ops)
__first, __VA_ARGS__); \
})
static void put_cgroup_ctx(struct cgroup_ctx *ctx)
static inline void put_cgroup_ctx(struct cgroup_ctx *ctx)
{
if (!IS_ERR_OR_NULL(ctx)) {
for (__u32 idx = 0; idx < ctx->fd_len; idx++)

6
src/lxc/network.c
View File

@ -1911,7 +1911,8 @@ int netdev_get_mtu(int ifindex)
call_cleaner(nlmsg_free) struct nlmsg *answer = NULL, *nlmsg = NULL;
struct nl_handler nlh;
call_cleaner(netlink_close) struct nl_handler *nlh_ptr = &nlh;
int readmore = 0, recv_len = 0;
int readmore = 0;
__u32 recv_len = 0;
int answer_len, err, res;
struct ifinfomsg *ifi;
struct nlmsghdr *msg;
@ -2547,7 +2548,8 @@ static int ip_addr_get(int family, int ifindex, void **res)
int answer_len, err;
struct ifaddrmsg *ifa;
struct nlmsghdr *msg;
int readmore = 0, recv_len = 0;
int readmore = 0;
__u32 recv_len = 0;
err = netlink_open(nlh_ptr, NETLINK_ROUTE);
if (err)