fi
])
-#
-# LIBCFS_STRUCT_PAGE_LIST
-#
-# 2.6.4 no longer has page->list
-#
-AC_DEFUN([LIBCFS_STRUCT_PAGE_LIST],
-[AC_MSG_CHECKING([if struct page has a list field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mm.h>
-],[
- struct page page;
- &page.list;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_PAGE_LIST, 1, [struct page has a list field])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LIBCFS_STRUCT_SIGHAND
-#
-# red hat 2.4 adds sighand to struct task_struct
-#
-AC_DEFUN([LIBCFS_STRUCT_SIGHAND],
-[AC_MSG_CHECKING([if task_struct has a sighand field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- struct task_struct p;
- p.sighand = NULL;
-],[
- AC_DEFINE(CONFIG_RH_2_4_20, 1, [this kernel contains Red Hat 2.4.20 patches])
- AC_MSG_RESULT([yes])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LIBCFS_FUNC_CPU_ONLINE
-#
-# cpu_online is different in rh 2.4, vanilla 2.4, and 2.6
-#
-AC_DEFUN([LIBCFS_FUNC_CPU_ONLINE],
-[AC_MSG_CHECKING([if kernel defines cpu_online()])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- cpu_online(0);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CPU_ONLINE, 1, [cpu_online found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LIBCFS_TYPE_GFP_T
-#
-# check if gfp_t is typedef-ed
-#
-AC_DEFUN([LIBCFS_TYPE_GFP_T],
-[AC_MSG_CHECKING([if kernel defines gfp_t])
-LB_LINUX_TRY_COMPILE([
- #include <linux/gfp.h>
-],[
- return sizeof(gfp_t);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_GFP_T, 1, [gfp_t found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LIBCFS_TYPE_CPUMASK_T
-#
-# same goes for cpumask_t
-#
-AC_DEFUN([LIBCFS_TYPE_CPUMASK_T],
-[AC_MSG_CHECKING([if kernel defines cpumask_t])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- return sizeof (cpumask_t);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CPUMASK_T, 1, [cpumask_t found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LIBCFS_FUNC_SHOW_TASK
-#
-# we export show_task(), but not all kernels have it (yet)
-#
-AC_DEFUN([LIBCFS_FUNC_SHOW_TASK],
-[LB_CHECK_SYMBOL_EXPORT([show_task],
-[kernel/ksyms.c kernel/sched.c],[
-AC_DEFINE(HAVE_SHOW_TASK, 1, [show_task is exported])
-],[
-])
-])
-
-# 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>
- int main(void) {
- unsigned long long *data1;
- __u64 *data2;
-
- data1 = data2;
- return 0;
- }
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
- [__u64 is long long type])
-],[
- AC_MSG_RESULT([no])
-])
-CFLAGS="$tmp_flags"
+# check kernel __u64 type
+AC_DEFUN([LIBCFS_U64_LONG_LONG_LINUX],
+[
AC_MSG_CHECKING([kernel __u64 is long long type])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Werror"
#include <linux/types.h>
#include <linux/stddef.h>
],[
- unsigned long long *data1;
- __u64 *data2 = NULL;
-
- data1 = data2;
+ unsigned long long *data;
+
+ data = (__u64*)sizeof(data);
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
EXTRA_KCFLAGS="$tmp_flags"
])
-# 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>
-],[
- struct task_struct tsk;
-
- tsk.rcu.next = NULL;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_TASK_RCU, 1,
- [task_struct has rcu field])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
# LIBCFS_TASKLIST_LOCK
# 2.6.18 remove tasklist_lock export
AC_DEFUN([LIBCFS_TASKLIST_LOCK],
])
])
+# LIBCFS_DIGEST_SETKEY_FLAGS
+# digest_alg.dia_setkey takes 4 args (2.6.18)
+#
+AC_DEFUN([LIBCFS_DIGEST_SETKEY_FLAGS],
+[AC_MSG_CHECKING([if kernel dia_setkey takes 4 args])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/err.h>
+ #include <linux/crypto.h>
+],[
+ struct digest_alg alg;
+
+ alg.dia_setkey(NULL, NULL, 0, NULL);
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_DIGEST_SETKEY_FLAGS, 1, [kernel dia_setkey takes 4 args])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
# 2.6.19 API changes
# kmem_cache_destroy(cachep) return void instead of
# int
LB_LINUX_TRY_COMPILE([
#include <linux/slab.h>
],[
- int i = kmem_cache_destroy(NULL);
+ int i __attribute__ ((unused));
+ i = kmem_cache_destroy(NULL);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_DESTROY_INT, 1,
])
])
-# 2.6.19 API change
-#panic_notifier_list use atomic_notifier operations
-#
-AC_DEFUN([LIBCFS_ATOMIC_PANIC_NOTIFIER],
-[AC_MSG_CHECKING([panic_notifier_list is atomic])
+# check cpumask_size (2.6.28)
+AC_DEFUN([LIBCFS_CPUMASK_SIZE],
+[AC_MSG_CHECKING([whether have cpumask_size()])
LB_LINUX_TRY_COMPILE([
- #include <linux/notifier.h>
- #include <linux/kernel.h>
+ #include <linux/cpumask.h>
],[
- struct atomic_notifier_head panic_notifier_list;
+ int size = cpumask_size();
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_ATOMIC_PANIC_NOTIFIER, 1,
- [panic_notifier_list is atomic_notifier_head])
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_CPUMASK_SIZE, 1, [have cpumask_size()])
],[
- AC_MSG_RESULT(NO)
+ AC_MSG_RESULT(NO)
])
])
+# check cpu topology functions
+#
+# topology_core_cpumask (2.6.29, not on all archs)
+# topology_core_siblings (not on all archs)
+# topology_thread_cpumask (2.6.29, not on all archs)
+# topology_thread_siblings (not on all archs)
+# cpumask_of_node/node_to_cpumask (not always exported)
+AC_DEFUN([LIBCFS_CPU_TOPOLOGY],
+[AC_MSG_CHECKING([whether have topology.h])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/topology.h>
+],[],[
+ AC_DEFINE(HAVE_CPU_TOPOLOGY, 1, [have CPU topology])
+ AC_MSG_RESULT(yes)
+
+ AC_MSG_CHECKING([whether have topology_core_cpumask])
+ LB_LINUX_TRY_COMPILE([
+ #include <linux/topology.h>
+ ],[
+ cpumask_t *mask = topology_core_cpumask(0);
+ ],[
+ AC_DEFINE(HAVE_TOPOLOGY_CORE_CPUMASK, 1,
+ [have topology_core_cpumask])
+ AC_MSG_RESULT(yes)
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+
+ AC_MSG_CHECKING([whether have topology_core_siblings])
+ LB_LINUX_TRY_COMPILE([
+ #include <linux/topology.h>
+ ],[
+ cpumask_t mask = topology_core_siblings(0);
+ ],[
+ AC_DEFINE(HAVE_TOPOLOGY_CORE_SIBLINGS, 1,
+ [have topology_core_siblings])
+ AC_MSG_RESULT(yes)
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+
+ AC_MSG_CHECKING([whether have topology_thread_cpumask])
+ LB_LINUX_TRY_COMPILE([
+ #include <linux/topology.h>
+ ],[
+ cpumask_t *mask = topology_thread_cpumask(0);
+ ],[
+ AC_DEFINE(HAVE_TOPOLOGY_THREAD_CPUMASK, 1,
+ [have topology_thread_cpumask])
+ AC_MSG_RESULT(yes)
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+
+ AC_MSG_CHECKING([whether have topology_thread_siblings])
+ LB_LINUX_TRY_COMPILE([
+ #include <linux/topology.h>
+ ],[
+ cpumask_t mask = topology_thread_siblings(0);
+ ],[
+ AC_DEFINE(HAVE_TOPOLOGY_THREAD_SIBLINGS, 1,
+ [have topology_thread_siblings])
+ AC_MSG_RESULT(yes)
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+
+ AC_MSG_CHECKING([whether OFED backports have cpumask_of_node])
+ # Some OFED has cpumask_of_node backports defined in
+ # its private include/linux/cpumask.h. However, it is
+ # defined conflictingly with kernel's cpumask_of_node.
+ if test -f $OFED_BACKPORT_PATH/linux/cpumask.h; then
+ grep -q cpumask_of_node $OFED_BACKPORT_PATH/linux/cpumask.h 2>/dev/null
+ rc=$?
+ if test $rc -eq 0; then
+ AC_DEFINE(HAVE_OFED_CPUMASK_OF_NODE, 1, [have cpumask_of_node])
+ AC_MSG_RESULT(yes)
+ else
+ AC_MSG_RESULT(no)
+ fi
+ fi
+
+ AC_MSG_CHECKING([whether have cpumask_of_node])
+ LB_LINUX_TRY_COMPILE([
+ #include <linux/topology.h>
+ ],[
+ cpumask_t *mask = cpumask_of_node(0);
+ ],[
+ AC_DEFINE(HAVE_CPUMASK_OF_NODE, 1, [have cpumask_of_node])
+ AC_MSG_RESULT(yes)
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+
+ AC_MSG_CHECKING([whether have cpumask_copy])
+ LB_LINUX_TRY_COMPILE([
+ #include <linux/cpumask.h>
+ ],[
+ cpumask_copy(NULL, NULL);
+ ],[
+ AC_DEFINE(HAVE_CPUMASK_COPY, 1, [have cpumask_copy])
+ AC_MSG_RESULT(yes)
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+
+ AC_MSG_CHECKING([whether have node_to_cpumask])
+ LB_LINUX_TRY_COMPILE([
+ #include <linux/topology.h>
+ ],[
+ cpumask_t mask = node_to_cpumask(0);
+ ],[
+ AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1, [have node_to_cpumask])
+ AC_MSG_RESULT(yes)
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+
# 2.6.20 API change INIT_WORK use 2 args and not
# store data inside
AC_DEFUN([LIBCFS_3ARGS_INIT_WORK],
LB_LINUX_TRY_COMPILE([
#include <linux/workqueue.h>
],[
- struct work_struct work;
+ struct work_struct work __attribute__ ((unused));
INIT_WORK(&work, NULL, NULL);
],[
LB_LINUX_TRY_COMPILE([
#include <linux/sysctl.h>
],[
- return register_sysctl_table(NULL,0);
+ register_sysctl_table(NULL,0);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_2ARGS_REGISTER_SYSCTL, 1,
])
])
-# 2.6.21 marks kmem_cache_t deprecated and uses struct kmem_cache
-# instead
-AC_DEFUN([LIBCFS_KMEM_CACHE],
-[AC_MSG_CHECKING([check kernel has struct kmem_cache])
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="-Werror"
-LB_LINUX_TRY_COMPILE([
- #include <linux/slab.h>
- typedef struct kmem_cache cache_t;
-],[
- cache_t *cachep = NULL;
-
- kmem_cache_alloc(cachep, 0);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_KMEM_CACHE, 1,
- [kernel has struct kmem_cache])
-],[
- AC_MSG_RESULT(NO)
-])
-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])
])
])
+#2.6.23 has new shrinker API
+AC_DEFUN([LC_REGISTER_SHRINKER],
+[AC_MSG_CHECKING([if kernel has register_shrinker])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/mm.h>
+],[
+ register_shrinker(NULL);
+], [
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
+ [kernel has register_shrinker])
+],[
+ 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);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SCATTERLIST_SETPAGE, 1,
- [struct scatterlist has page member])
+ [struct scatterlist has no page member])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+# 2.6.24-rc1 sg_init_table
+AC_DEFUN([LIBCFS_SCATTERLIST_INITTABLE],
+[AC_MSG_CHECKING([for sg_init_table])
+LB_LINUX_TRY_COMPILE([
+ #include <asm/types.h>
+ #include <linux/scatterlist.h>
+],[
+ sg_init_table(NULL,0);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SCATTERLIST_INITTABLE, 1,
+ [scatterlist has sg_init_table])
+],[
+ 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 __attribute__ ((unused));
+ net = &init_net;
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_INIT_NET, 1,
+ [kernel is support network namespaces ])
],[
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 arch/x86/kernel/dumpstack_32.c arch/x86/kernel/dumpstack_64.c],[
+ tmp_flags="$EXTRA_KCFLAGS"
+ EXTRA_KCFLAGS="-Werror"
+ AC_MSG_CHECKING([whether we can really use dump_trace])
+ LB_LINUX_TRY_COMPILE([
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
+ ],[
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_DUMP_TRACE, 1, [dump_trace is exported])
+ ],[
+ AC_MSG_RESULT(no)
+ ],[
+ ])
+ AC_MSG_CHECKING([whether print_trace_address has reliable argument])
+ LB_LINUX_TRY_COMPILE([
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
+ ],[
+ ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
+ [print_trace_address has reliable argument])
+ ],[
+ AC_MSG_RESULT(no)
+ ],[
+ ])
+ AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
+ LB_LINUX_TRY_COMPILE([
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
+ ],[
+ ((struct stacktrace_ops *)0)->warning(NULL, NULL);
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
+ ],[
+ AC_MSG_RESULT(no)
+ ],[
+ ])
+ AC_MSG_CHECKING([dump_trace want address])
+ LB_LINUX_TRY_COMPILE([
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
+ ],[
+ dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
+ [dump_trace want address argument])
+ ],[
+ AC_MSG_RESULT(no)
+ ],[
+ ])
+
+EXTRA_KCFLAGS="$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>
],[
- struct semaphore s;
-
+ struct semaphore s __attribute__ ((unused));
+
atomic_read(&s.count);
],[
AC_MSG_RESULT(yes)
])
])
+# 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() + sizeof(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_STRUCT_SHASH_ALG
+# struct shash_alg was introduced in 2.6.29
+#
+AC_DEFUN([LIBCFS_STRUCT_SHASH_ALG],
+[AC_MSG_CHECKING([if kernel has struct shash_alg])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/err.h>
+ #include <crypto/internal/hash.h>
+],[
+ struct shash_alg foo;
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_STRUCT_SHASH_ALG, 1, [kernel has struct shash_alg])
+],[
+ 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_HAVE_IS_COMPAT_TASK
+#
+# Added in 2.6.17, it wasn't until 2.6.29 that all
+# Linux architectures have is_compat_task()
+#
+AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
+[AC_MSG_CHECKING([if is_compat_task() is declared])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/compat.h>
+],[
+ int i __attribute__ ((unused));
+ i = is_compat_task();
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
+#
+# LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
+#
+# 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
+#
+AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
+[AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
+LB_LINUX_TRY_COMPILE([
+ #include <asm/stacktrace.h>
+],[
+ ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
+AC_DEFUN([LIBCFS_HAVE_OOM_H],
+[LB_CHECK_FILE([$LINUX/include/linux/oom.h], [
+ AC_DEFINE(HAVE_LINUX_OOM_H, 1,
+ [kernel has include/oom.h])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
+#
+# check set_mems_allowed
+# 2.6.31 adds function set_mems_allowed in cpuset.h
+#
+AC_DEFUN([LIBCFS_HAVE_SET_MEMS_ALLOWED],
+[AC_MSG_CHECKING([whether have set_mems_allowed()])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/cpuset.h>
+],[
+ nodemask_t mask;
+
+ set_mems_allowed(mask);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SET_MEMS_ALLOWED, 1, [have set_mems_allowed()])
+],[
+ AC_MSG_RESULT(NO)
+])
+])
+
+
+#
+# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
+#
+AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
+[AC_MSG_CHECKING([shrinker want self pointer in handler])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/mm.h>
+],[
+ struct shrinker *tmp = NULL;
+ tmp->shrink(tmp, 0, 0);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
+ [shrinker want self pointer in handler])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
+# 2.6.18 store oom parameters in task struct.
+# 2.6.32 store oom parameters in signal struct
+AC_DEFUN([LIBCFS_OOMADJ_IN_SIG],
+[AC_MSG_CHECKING([kernel store oom parameters in task])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/sched.h>
+],[
+ ((struct signal_struct *)0)->oom_adj = 0;
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_OOMADJ_IN_SIG, 1,
+ [kernel store a oom parameters in signal struct])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
+#
+# 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
+#
+AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
+[AC_MSG_CHECKING([if ctl_table has a ctl_name field])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/sysctl.h>
+],[
+ struct ctl_table ct;
+ ct.ctl_name = sizeof(ct);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
+ [ctl_table has ctl_name field])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
+#
+# LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
+#
+# 2.6.34 adds __add_wait_queue_exclusive
+#
+AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
+[AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/wait.h>
+],[
+ wait_queue_head_t queue;
+ wait_queue_t wait;
+
+ __add_wait_queue_exclusive(&queue, &wait);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
+ [__add_wait_queue_exclusive exists])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
+#
+# 2.6.35 kernel has sk_sleep function
+#
+AC_DEFUN([LC_SK_SLEEP],
+[AC_MSG_CHECKING([if kernel has sk_sleep])
+LB_LINUX_TRY_COMPILE([
+ #include <net/sock.h>
+],[
+ sk_sleep(NULL);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
+#
+# FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
+# pressure shrinker from Linux 3.0
+#
+AC_DEFUN([LC_SHRINK_CONTROL],
+[AC_MSG_CHECKING([shrink_control is present])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/mm.h>
+],[
+ struct shrink_control tmp = {0};
+ tmp.nr_to_scan = sizeof(tmp);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
+ [shrink_control is present])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
#
# LIBCFS_PROG_LINUX
#
#
AC_DEFUN([LIBCFS_PROG_LINUX],
[
-LIBCFS_FUNC_CPU_ONLINE
-LIBCFS_TYPE_GFP_T
-LIBCFS_TYPE_CPUMASK_T
LIBCFS_CONFIG_PANIC_DUMPLOG
-LIBCFS_STRUCT_PAGE_LIST
-LIBCFS_STRUCT_SIGHAND
-LIBCFS_FUNC_SHOW_TASK
-LIBCFS_U64_LONG_LONG
-LIBCFS_TASK_RCU
+LIBCFS_U64_LONG_LONG_LINUX
# 2.6.18
LIBCFS_TASKLIST_LOCK
+LIBCFS_HAVE_IS_COMPAT_TASK
+LIBCFS_DIGEST_SETKEY_FLAGS
# 2.6.19
LIBCFS_KMEM_CACHE_DESTROY_INT
-LIBCFS_ATOMIC_PANIC_NOTIFIER
# 2.6.20
LIBCFS_3ARGS_INIT_WORK
# 2.6.21
LIBCFS_2ARGS_REGISTER_SYSCTL
-LIBCFS_KMEM_CACHE
# 2.6.23
LIBCFS_KMEM_CACHE_CREATE_DTOR
+LC_REGISTER_SHRINKER
# 2.6.24
-LN_SYSCTL_UNNUMBERED
-LN_SCATTERLIST_SETPAGE
+LIBCFS_SYSCTL_UNNUMBERED
+LIBCFS_SCATTERLIST_SETPAGE
+LIBCFS_SCATTERLIST_INITTABLE
+LIBCFS_NETWORK_NAMESPACE
+LIBCFS_FUNC_DUMP_TRACE
# 2.6.26
-LN_SEM_COUNT
+LIBCFS_SEM_COUNT
+# 2.6.27
+LIBCFS_CRED_WRAPPERS
+# 2.6.28
+LIBCFS_CPUMASK_SIZE
+# 2.6.29
+LIBCFS_STRUCT_CRED_IN_TASK
+LIBCFS_CPU_TOPOLOGY
+LIBCFS_STRUCT_SHASH_ALG
+# 2.6.30
+LIBCFS_FUNC_UNSHARE_FS_STRUCT
+LIBCFS_SOCK_MAP_FD_2ARG
+# 2.6.31
+LIBCFS_HAVE_SET_MEMS_ALLOWED
+# 2.6.32
+LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
+LC_SHRINKER_WANT_SHRINK_PTR
+LIBCFS_HAVE_OOM_H
+LIBCFS_OOMADJ_IN_SIG
+# 2.6.33
+LIBCFS_SYSCTL_CTLNAME
+# 2.6.34
+LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
+# 2.6.35
+LC_SK_SLEEP
+# 2.6.40 fc15
+LC_SHRINK_CONTROL
])
#
# lnet/utils/wirecheck.c
AC_CHECK_FUNCS([strnlen])
+# lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
+AC_CHECK_FUNCS([strlcpy])
+
+# libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
+AC_CHECK_FUNCS([strlcat])
+
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>])
+# check userland __u64 type
+AC_MSG_CHECKING([userspace __u64 is long long type])
+tmp_flags="$CFLAGS"
+CFLAGS="$CFLAGS -Werror"
+AC_COMPILE_IFELSE([
+ #include <stdio.h>
+ #include <linux/types.h>
+ #include <linux/stddef.h>
+ int main(void) {
+ unsigned long long *data1;
+ __u64 *data2 = NULL;
+
+ data1 = data2;
+ return 0;
+ }
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
+ [__u64 is long long type])
+],[
+ AC_MSG_RESULT([no])
+])
+CFLAGS="$tmp_flags"
+
# -------- Check for required packages --------------
libcfs/libcfs/Makefile
libcfs/libcfs/autoMakefile
libcfs/libcfs/linux/Makefile
-libcfs/libcfs/ulinux/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