])
])
-# check userland __u64 type
+# check userland & kernel __u64 type
AC_DEFUN([LIBCFS_U64_LONG_LONG],
[AC_MSG_CHECKING([u64 is long long type])
tmp_flags="$CFLAGS"
CFLAGS="$CFLAGS -Werror"
AC_COMPILE_IFELSE([
#include <linux/types.h>
+ #include <linux/stddef.h>
int main(void) {
unsigned long long *data1;
- __u64 *data2;
-
+ __u64 *data2 = NULL;
+
data1 = data2;
return 0;
}
],[
AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_U64_LONG_LONG, 1,
+ AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
[__u64 is long long type])
],[
AC_MSG_RESULT([no])
])
CFLAGS="$tmp_flags"
-])
-
-# check userland size_t type
-AC_DEFUN([LIBCFS_SIZE_T_LONG],
-[AC_MSG_CHECKING([size_t is unsigned long type])
-tmp_flags="$CFLAGS"
-CFLAGS="$CFLAGS -Werror"
-AC_COMPILE_IFELSE([
+AC_MSG_CHECKING([kernel __u64 is long long type])
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Werror"
+LB_LINUX_TRY_COMPILE([
#include <linux/types.h>
- int main(void) {
- unsigned long *data1;
- size_t *data2;
-
- data1 = data2;
- return 0;
- }
+ #include <linux/stddef.h>
+],[
+ unsigned long long *data1;
+ __u64 *data2 = NULL;
+
+ data1 = data2;
],[
AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_SIZE_T_LONG, 1,
- [size_t is long type])
+ AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
+ [kernel __u64 is long long type])
],[
AC_MSG_RESULT([no])
])
-CFLAGS="$tmp_flags"
+EXTRA_KCFLAGS="$tmp_flags"
])
-AC_DEFUN([LIBCFS_SSIZE_T_LONG],
-[AC_MSG_CHECKING([ssize_t is signed long type])
-tmp_flags="$CFLAGS"
-CFLAGS="$CFLAGS -Werror"
-AC_COMPILE_IFELSE([
- #include <linux/types.h>
- int main(void) {
- long *data1;
- ssize_t *data2;
-
- data1 = data2;
- return 0;
- }
+# check if task_struct with rcu memeber
+AC_DEFUN([LIBCFS_TASK_RCU],
+[AC_MSG_CHECKING([if task_struct has a rcu field])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/sched.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_SSIZE_T_LONG, 1,
- [ssize_t is long type])
+ struct task_struct tsk;
+
+ tsk.rcu.next = NULL;
],[
- AC_MSG_RESULT([no])
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_TASK_RCU, 1,
+ [task_struct has rcu field])
+],[
+ AC_MSG_RESULT([no])
])
-CFLAGS="$tmp_flags"
])
-
# LIBCFS_TASKLIST_LOCK
# 2.6.18 remove tasklist_lock export
AC_DEFUN([LIBCFS_TASKLIST_LOCK],
])
])
+# since 2.6.19 nlmsg_multicast() needs 5 argument.
+AC_DEFUN([LIBCFS_NLMSG_MULTICAST],
+[AC_MSG_CHECKING([nlmsg_multicast needs 5 argument])
+LB_LINUX_TRY_COMPILE([
+ #include <net/netlink.h>
+],[
+ nlmsg_multicast(NULL, NULL, 0, 0, 0);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_NLMSG_MULTICAST_5ARGS, 1,
+ [nlmsg_multicast needs 5 argument])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+#
+# LIBCFS_NETLINK
+#
+# If we have netlink.h, and nlmsg_new takes 2 args (2.6.19)
+#
+AC_DEFUN([LIBCFS_NETLINK],
+[AC_MSG_CHECKING([if netlink.h can be compiled])
+LB_LINUX_TRY_COMPILE([
+ #include <net/netlink.h>
+],[],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_NETLINK, 1, [net/netlink.h found])
+
+ AC_MSG_CHECKING([if nlmsg_new takes a 2nd argument])
+ LB_LINUX_TRY_COMPILE([
+ #include <net/netlink.h>
+ ],[
+ nlmsg_new(100, GFP_KERNEL);
+ ],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_NETLINK_NL2, 1, [nlmsg_new takes 2 args])
+ ],[
+ AC_MSG_RESULT([no])
+ ])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
# 2.6.20 API change INIT_WORK use 2 args and not
# store data inside
AC_DEFUN([LIBCFS_3ARGS_INIT_WORK],
])
EXTRA_KCFLAGS="$tmp_flags"
])
+
# 2.6.23 lost dtor argument
AC_DEFUN([LIBCFS_KMEM_CACHE_CREATE_DTOR],
[AC_MSG_CHECKING([check kmem_cache_create has dtor argument])
])
])
+# 2.6.24
+AC_DEFUN([LIBCFS_NETLINK_CBMUTEX],
+[AC_MSG_CHECKING([for mutex in netlink_kernel_create])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/netlink.h>
+],[
+ struct mutex *lock = NULL;
+
+ netlink_kernel_create(0, 0, NULL, lock, NULL);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
+ [netlink_kernel_create want mutex for callback])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
# 2.6.24 request not use real numbers for ctl_name
-AC_DEFUN([LN_SYSCTL_UNNUMBERED],
+AC_DEFUN([LIBCFS_SYSCTL_UNNUMBERED],
[AC_MSG_CHECKING([for CTL_UNNUMBERED])
LB_LINUX_TRY_COMPILE([
#include <linux/sysctl.h>
])
# 2.6.24 lost scatterlist->page
-AC_DEFUN([LN_SCATTERLIST_SETPAGE],
+AC_DEFUN([LIBCFS_SCATTERLIST_SETPAGE],
[AC_MSG_CHECKING([for exist sg_set_page])
LB_LINUX_TRY_COMPILE([
+ #include <asm/types.h>
#include <linux/scatterlist.h>
],[
sg_set_page(NULL,NULL,0,0);
])
])
+# from 2.6.24 please use sg_init_table
+AC_DEFUN([LIBCFS_SCATTERLIST_INITTABLE],
+[AC_MSG_CHECKING([if sg_init_table is defined])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/scatterlist.h>
+],[
+ sg_init_table(NULL,0);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SCATTERLIST_INITTABLE, 1,
+ [sg_init_table is defined])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+# 2.6.24
+AC_DEFUN([LIBCFS_NETWORK_NAMESPACE],
+[AC_MSG_CHECKING([for network stack has namespaces])
+LB_LINUX_TRY_COMPILE([
+ #include <net/net_namespace.h>
+],[
+ struct net *net = &init_net;
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_INIT_NET, 1,
+ [kernel is support network namespaces ])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+
+# 2.6.24
+AC_DEFUN([LIBCFS_NETLINK_NETNS],
+[AC_MSG_CHECKING([for netlink support net ns])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/netlink.h>
+],[
+ struct net *net = NULL;
+ struct mutex *lock = NULL;
+
+ netlink_kernel_create(net, 0, 0, NULL,
+ lock,
+ NULL);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_NETLINK_NS, 1,
+ [netlink is support network namespace])
+# XXX
+# for now - if kernel have netlink ns - he uses cbmutex
+ AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
+ [netlink_kernel_create want mutex for callback])
+
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+# ~2.6.24
+AC_DEFUN([LIBCFS_NL_BROADCAST_GFP],
+[AC_MSG_CHECKING([for netlink_broadcast is want to have gfp parameter])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/netlink.h>
+],[
+ gfp_t gfp = GFP_KERNEL;
+
+ netlink_broadcast(NULL, NULL, 0, 0, gfp);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_NL_BROADCAST_GFP, 1,
+ [netlink brouacast is want to have gfp paramter])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+#
+# LIBCFS_FUNC_DUMP_TRACE
+#
+# 2.6.23 exports dump_trace() so we can dump_stack() on any task
+# 2.6.24 has stacktrace_ops.address with "reliable" parameter
+#
+AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE],
+[LB_CHECK_SYMBOL_EXPORT([dump_trace],
+[kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c],[
+ tmp_flags="$EXTRA_KCFLAGS"
+ EXTRA_KCFLAGS="-Werror"
+ AC_MSG_CHECKING([whether we can really use dump_trace])
+ LB_LINUX_TRY_COMPILE([
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
+ ],[
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_DUMP_TRACE, 1, [dump_trace is exported])
+ ],[
+ AC_MSG_RESULT(no)
+ ],[
+ ])
+ AC_MSG_CHECKING([whether print_trace_address has reliable argument])
+ LB_LINUX_TRY_COMPILE([
+ struct task_struct;
+ struct pt_regs;
+ void print_addr(void *data, unsigned long addr, int reliable);
+ #include <asm/stacktrace.h>
+ ],[
+ struct stacktrace_ops ops;
+
+ ops.address = print_addr;
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
+ [print_trace_address has reliable argument])
+ ],[
+ AC_MSG_RESULT(no)
+ ],[
+ ])
+EXTRA_KCFLAGS="$tmp_flags"
+])
+])
+
+
# 2.6.26 use int instead of atomic for sem.count
-AC_DEFUN([LN_SEM_COUNT],
+AC_DEFUN([LIBCFS_SEM_COUNT],
[AC_MSG_CHECKING([atomic sem.count])
LB_LINUX_TRY_COMPILE([
#include <asm/semaphore.h>
])
])
+# 2.6.27 have second argument to sock_map_fd
+AC_DEFUN([LIBCFS_SOCK_MAP_FD_2ARG],
+[AC_MSG_CHECKING([sock_map_fd have second argument])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/net.h>
+],[
+ sock_map_fd(NULL, 0);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SOCK_MAP_FD_2ARG, 1,
+ [sock_map_fd have second argument])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+# LIBCFS_CRED_WRAPPERS
+#
+# wrappers for task's credentials are in sles11
+#
+AC_DEFUN([LIBCFS_CRED_WRAPPERS],
+[AC_MSG_CHECKING([if kernel has wrappers for task's credentials])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/sched.h>
+],[
+ uid_t uid;
+
+ uid = current_uid();
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_CRED_WRAPPERS, 1, [task's cred wrappers found])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
+#
+# LN_STRUCT_CRED_IN_TASK
+#
+# struct cred was introduced in 2.6.29 to streamline credentials in task struct
+#
+AC_DEFUN([LIBCFS_STRUCT_CRED_IN_TASK],
+[AC_MSG_CHECKING([if kernel has struct cred])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/sched.h>
+],[
+ struct task_struct *tsk = NULL;
+ tsk->real_cred = NULL;
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_STRUCT_CRED, 1, [struct cred found])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
+#
+# LIBCFS_FUNC_UNSHARE_FS_STRUCT
+#
+# unshare_fs_struct was introduced in 2.6.30 to prevent others to directly
+# mess with copy_fs_struct
+#
+AC_DEFUN([LIBCFS_FUNC_UNSHARE_FS_STRUCT],
+[AC_MSG_CHECKING([if kernel defines unshare_fs_struct()])
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_LINUX_TRY_COMPILE([
+ #include <linux/sched.h>
+ #include <linux/fs_struct.h>
+],[
+ unshare_fs_struct();
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_UNSHARE_FS_STRUCT, 1, [unshare_fs_struct found])
+],[
+ AC_MSG_RESULT([no])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+])
#
# LIBCFS_PROG_LINUX
LIBCFS_STRUCT_SIGHAND
LIBCFS_FUNC_SHOW_TASK
LIBCFS_U64_LONG_LONG
-LIBCFS_SSIZE_T_LONG
-LIBCFS_SIZE_T_LONG
+LIBCFS_TASK_RCU
# 2.6.18
LIBCFS_TASKLIST_LOCK
# 2.6.19
+LIBCFS_NETLINK
+LIBCFS_NLMSG_MULTICAST
LIBCFS_KMEM_CACHE_DESTROY_INT
LIBCFS_ATOMIC_PANIC_NOTIFIER
# 2.6.20
LIBCFS_KMEM_CACHE
# 2.6.23
LIBCFS_KMEM_CACHE_CREATE_DTOR
+LIBCFS_NETLINK_CBMUTEX
# 2.6.24
-LN_SYSCTL_UNNUMBERED
-LN_SCATTERLIST_SETPAGE
+LIBCFS_SYSCTL_UNNUMBERED
+LIBCFS_SCATTERLIST_SETPAGE
+LIBCFS_SCATTERLIST_INITTABLE
+LIBCFS_NL_BROADCAST_GFP
+LIBCFS_NETWORK_NAMESPACE
+LIBCFS_NETLINK_NETNS
+LIBCFS_FUNC_DUMP_TRACE
# 2.6.26
-LN_SEM_COUNT
+LIBCFS_SEM_COUNT
+# 2.6.27
+LIBCFS_CRED_WRAPPERS
+# 2.6.29
+LIBCFS_STRUCT_CRED_IN_TASK
+# 2.6.30
+LIBCFS_FUNC_UNSHARE_FS_STRUCT
+LIBCFS_SOCK_MAP_FD_2ARG
])
#
# lnet/utils/wirecheck.c
AC_CHECK_FUNCS([strnlen])
+AC_CHECK_TYPE([umode_t],
+ [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
+ [],
+ [#include <asm/types.h>])
+
+AC_CHECK_TYPE([__s8],
+ [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
+ [],
+ [#include <asm/types.h>])
+
+AC_CHECK_TYPE([__u8],
+ [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
+ [],
+ [#include <asm/types.h>])
+
+AC_CHECK_TYPE([__s16],
+ [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
+ [],
+ [#include <asm/types.h>])
+
+AC_CHECK_TYPE([__u16],
+ [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
+ [],
+ [#include <asm/types.h>])
+
+AC_CHECK_TYPE([__s32],
+ [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
+ [],
+ [#include <asm/types.h>])
+
+AC_CHECK_TYPE([__u32],
+ [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
+ [],
+ [#include <asm/types.h>])
+
+AC_CHECK_TYPE([__u64],
+ [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
+ [],
+ [#include <asm/types.h>])
+
+AC_CHECK_TYPE([__s64],
+ [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
+ [],
+ [#include <asm/types.h>])
+
# -------- Check for required packages --------------
libcfs/libcfs/linux/Makefile
libcfs/libcfs/posix/Makefile
libcfs/libcfs/util/Makefile
-])
-case $lb_target_os in
- darwin)
- AC_CONFIG_FILES([
libcfs/include/libcfs/darwin/Makefile
libcfs/libcfs/darwin/Makefile
])
- ;;
-esac
])
git://git.whamcloud.com / fs / lustre-release.git / blobdiff