#
# whether to enable various libcfs debugs (CDEBUG, ENTRY/EXIT, LASSERT, etc.)
#
-AC_DEFUN([LN_CONFIG_CDEBUG],
-[
+AC_DEFUN([LN_CONFIG_CDEBUG], [
AC_MSG_CHECKING([whether to enable CDEBUG, CWARN])
AC_ARG_ENABLE([libcfs_cdebug],
AC_HELP_STRING([--disable-libcfs-cdebug],
- [disable libcfs CDEBUG, CWARN]),
- [],[enable_libcfs_cdebug='yes'])
+ [disable libcfs CDEBUG, CWARN]),
+ [], [enable_libcfs_cdebug="yes"])
AC_MSG_RESULT([$enable_libcfs_cdebug])
-if test x$enable_libcfs_cdebug = xyes; then
- AC_DEFINE(CDEBUG_ENABLED, 1, [enable libcfs CDEBUG, CWARN])
-else
- AC_DEFINE(CDEBUG_ENABLED, 0, [disable libcfs CDEBUG, CWARN])
-fi
+AS_IF([test "x$enable_libcfs_cdebug" = xyes],
+ [AC_DEFINE(CDEBUG_ENABLED, 1, [enable libcfs CDEBUG, CWARN])])
AC_MSG_CHECKING([whether to enable ENTRY/EXIT])
AC_ARG_ENABLE([libcfs_trace],
AC_HELP_STRING([--disable-libcfs-trace],
- [disable libcfs ENTRY/EXIT]),
- [],[enable_libcfs_trace='yes'])
+ [disable libcfs ENTRY/EXIT]),
+ [], [enable_libcfs_trace="yes"])
AC_MSG_RESULT([$enable_libcfs_trace])
-if test x$enable_libcfs_trace = xyes; then
- AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])
-else
- AC_DEFINE(CDEBUG_ENTRY_EXIT, 0, [disable libcfs ENTRY/EXIT])
-fi
+AS_IF([test "x$enable_libcfs_trace" = xyes],
+ [AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])])
AC_MSG_CHECKING([whether to enable LASSERT, LASSERTF])
AC_ARG_ENABLE([libcfs_assert],
AC_HELP_STRING([--disable-libcfs-assert],
- [disable libcfs LASSERT, LASSERTF]),
- [],[enable_libcfs_assert='yes'])
+ [disable libcfs LASSERT, LASSERTF]),
+ [], [enable_libcfs_assert="yes"])
AC_MSG_RESULT([$enable_libcfs_assert])
-if test x$enable_libcfs_assert = xyes; then
- AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])
-fi
-])
+AS_IF([test x$enable_libcfs_assert = xyes],
+ [AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])])
+]) # LN_CONFIG_CDEBUG
#
# LIBCFS_CONFIG_PANIC_DUMPLOG
#
# check if tunable panic_dumplog is wanted
#
-AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG],
-[AC_MSG_CHECKING([for tunable panic_dumplog support])
+AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG], [
+AC_MSG_CHECKING([whether to use tunable 'panic_dumplog' support])
AC_ARG_ENABLE([panic_dumplog],
- AC_HELP_STRING([--enable-panic_dumplog],
- [enable panic_dumplog]),
- [],[enable_panic_dumplog='no'])
-if test x$enable_panic_dumplog = xyes ; then
- AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])
- AC_MSG_RESULT([yes (by request)])
-else
- AC_MSG_RESULT([no])
-fi
-])
-
-# 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"
-LB_LINUX_TRY_COMPILE([
- #include <linux/types.h>
- #include <linux/stddef.h>
-],[
- unsigned long long *data;
-
- data = (__u64*)sizeof(data);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
- [kernel __u64 is long long type])
-],[
- AC_MSG_RESULT([no])
-])
-EXTRA_KCFLAGS="$tmp_flags"
-])
+ AC_HELP_STRING([--enable-panic_dumplog],
+ [enable panic_dumplog]),
+ [], [enable_panic_dumplog="no"])
+AC_MSG_RESULT([$enable_panic_dumplog])
+AS_IF([test "x$enable_panic_dumplog" = xyes],
+ [AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])])
+]) # LIBCFS_CONFIG_PANIC_DUMPLOG
-# LIBCFS_TASKLIST_LOCK
-# 2.6.18 remove tasklist_lock export
-AC_DEFUN([LIBCFS_TASKLIST_LOCK],
-[LB_CHECK_SYMBOL_EXPORT([tasklist_lock],
-[kernel/fork.c],[
-AC_DEFINE(HAVE_TASKLIST_LOCK, 1,
- [tasklist_lock exported])
-],[
-])
-])
-
-# 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
-AC_DEFUN([LIBCFS_KMEM_CACHE_DESTROY_INT],
-[AC_MSG_CHECKING([kmem_cache_destroy(cachep) return int])
-LB_LINUX_TRY_COMPILE([
- #include <linux/slab.h>
-],[
- int i __attribute__ ((unused));
- i = kmem_cache_destroy(NULL);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_KMEM_CACHE_DESTROY_INT, 1,
- [kmem_cache_destroy(cachep) return int])
-],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# check cpumask_size (2.6.28)
-AC_DEFUN([LIBCFS_CPUMASK_SIZE],
-[AC_MSG_CHECKING([whether have cpumask_size()])
-LB_LINUX_TRY_COMPILE([
- #include <linux/cpumask.h>
-],[
- int size = cpumask_size();
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_CPUMASK_SIZE, 1, [have cpumask_size()])
-],[
- 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 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 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],
-[AC_MSG_CHECKING([check INIT_WORK want 3 args])
-LB_LINUX_TRY_COMPILE([
- #include <linux/workqueue.h>
-],[
- struct work_struct work __attribute__ ((unused));
-
- INIT_WORK(&work, NULL, NULL);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_3ARGS_INIT_WORK, 1,
- [INIT_WORK use 3 args and store data inside])
-],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# 2.6.21 api change. 'register_sysctl_table' use only one argument,
-# instead of more old which need two.
-AC_DEFUN([LIBCFS_2ARGS_REGISTER_SYSCTL],
-[AC_MSG_CHECKING([check register_sysctl_table want 2 args])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sysctl.h>
-],[
- register_sysctl_table(NULL,0);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_2ARGS_REGISTER_SYSCTL, 1,
- [register_sysctl_table want 2 args])
-],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# 2.6.23 lost dtor argument
-AC_DEFUN([LIBCFS_KMEM_CACHE_CREATE_DTOR],
-[AC_MSG_CHECKING([check kmem_cache_create has dtor argument])
-LB_LINUX_TRY_COMPILE([
- #include <linux/slab.h>
-],[
- kmem_cache_create(NULL, 0, 0, 0, NULL, NULL);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_KMEM_CACHE_CREATE_DTOR, 1,
- [kmem_cache_create has dtor argument])
-],[
- AC_MSG_RESULT(NO)
-])
-])
-
-#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([LIBCFS_SYSCTL_UNNUMBERED],
-[AC_MSG_CHECKING([for CTL_UNNUMBERED])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sysctl.h>
-],[
- #ifndef CTL_UNNUMBERED
- #error CTL_UNNUMBERED not exist in kernel
- #endif
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
- [sysctl has CTL_UNNUMBERED])
-],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# 2.6.24 lost scatterlist->page
-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])
-],[
- 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;
+# 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], [
+LB_CHECK_COMPILE([if 'struct stacktrace_ops' has 'walk_stack' field],
+stacktrace_ops_walk_stack, [
+ #include <asm/stacktrace.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_INIT_NET, 1,
- [kernel is support network namespaces ])
+ ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1,
+ ['struct stacktrace_ops' has 'walk_stack' field])
])
+]) # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
#
-# LIBCFS_FUNC_DUMP_TRACE
+# LIBCFS_STACKTRACE_WARNING
#
-# 2.6.23 exports dump_trace() so we can dump_stack() on any task
-# 2.6.24 has stacktrace_ops.address with "reliable" parameter
+# 3.0 removes stacktrace_ops warning* functions
#
-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([LIBCFS_SEM_COUNT],
-[AC_MSG_CHECKING([atomic sem.count])
-LB_LINUX_TRY_COMPILE([
- #include <asm/semaphore.h>
+AC_DEFUN([LIBCFS_STACKTRACE_WARNING], [
+LB_CHECK_COMPILE([if 'stacktrace_ops.warning' is exist],
+stacktrace_ops_warning, [
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
],[
- struct semaphore s __attribute__ ((unused));
-
- atomic_read(&s.count);
+ ((struct stacktrace_ops *)0)->warning(NULL, NULL);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SEM_COUNT_ATOMIC, 1,
- [semaphore counter is atomic])
-],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_STACKTRACE_WARNING, 1,
+ [stacktrace_ops.warning is exist])
])
+]) # LIBCFS_STACKTRACE_WARNING
-# 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
+# LC_SHRINKER_WANT_SHRINK_PTR
#
-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);
+# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
+#
+AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR], [
+LB_CHECK_COMPILE([if 'shrinker' want self pointer in handler],
+shrink_self_pointer, [
+ #include <linux/mm.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CRED_WRAPPERS, 1, [task's cred wrappers found])
+ struct shrinker *tmp = NULL;
+ tmp->shrink(tmp, 0, 0);
],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
+ [shrinker want self pointer in handler])
])
+]) # LC_SHRINKER_WANT_SHRINK_PTR
#
-# LN_STRUCT_CRED_IN_TASK
+# LIBCFS_SYSCTL_CTLNAME
#
-# struct cred was introduced in 2.6.29 to streamline credentials in task struct
+# 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
#
-AC_DEFUN([LIBCFS_STRUCT_CRED_IN_TASK],
-[AC_MSG_CHECKING([if kernel has struct cred])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
+AC_DEFUN([LIBCFS_SYSCTL_CTLNAME], [
+LB_CHECK_COMPILE([if 'ctl_table' has a 'ctl_name' field],
+ctl_table_ctl_name, [
+ #include <linux/sysctl.h>
],[
- struct task_struct *tsk = NULL;
- tsk->real_cred = NULL;
+ struct ctl_table ct;
+ ct.ctl_name = sizeof(ct);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_STRUCT_CRED, 1, [struct cred found])
-],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
+ [ctl_table has ctl_name field])
])
+]) # LIBCFS_SYSCTL_CTLNAME
-# 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;
+# LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
+#
+# 2.6.34 adds __add_wait_queue_exclusive
+#
+AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE], [
+LB_CHECK_COMPILE([if '__add_wait_queue_exclusive' exists],
+__add_wait_queue_exclusive, [
+ #include <linux/wait.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_STRUCT_SHASH_ALG, 1, [kernel has struct shash_alg])
+ wait_queue_head_t queue;
+ wait_queue_t wait;
+ __add_wait_queue_exclusive(&queue, &wait);
],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
+ [__add_wait_queue_exclusive exists])
])
-
+]) # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
#
-# LIBCFS_FUNC_UNSHARE_FS_STRUCT
+# LC_SK_SLEEP
#
-# unshare_fs_struct was introduced in 2.6.30 to prevent others to directly
-# mess with copy_fs_struct
+# 2.6.35 kernel has sk_sleep function
#
-AC_DEFUN([LIBCFS_FUNC_UNSHARE_FS_STRUCT],
-[AC_MSG_CHECKING([if kernel defines unshare_fs_struct()])
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="-Werror"
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
- #include <linux/fs_struct.h>
+AC_DEFUN([LC_SK_SLEEP], [
+LB_CHECK_COMPILE([if Linux kernel has 'sk_sleep'],
+sk_sleep, [
+ #include <net/sock.h>
],[
- unshare_fs_struct();
+ sk_sleep(NULL);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_UNSHARE_FS_STRUCT, 1, [unshare_fs_struct found])
-],[
- AC_MSG_RESULT([no])
-])
-EXTRA_KCFLAGS="$tmp_flags"
+ AC_DEFINE(HAVE_SK_SLEEP, 1,
+ [kernel has sk_sleep])
])
+]) # LC_SK_SLEEP
#
-# LIBCFS_HAVE_IS_COMPAT_TASK
+# LIBCFS_DUMP_TRACE_ADDRESS
#
-# Added in 2.6.17, it wasn't until 2.6.29 that all
-# Linux architectures have is_compat_task()
+# 2.6.39 adds a base pointer address argument to dump_trace
#
-AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
-[AC_MSG_CHECKING([if is_compat_task() is declared])
-LB_LINUX_TRY_COMPILE([
- #include <linux/compat.h>
+AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS], [
+LB_CHECK_COMPILE([if 'dump_trace' want address],
+dump_trace_address, [
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
],[
- int i __attribute__ ((unused));
- i = is_compat_task();
+ dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
-],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
+ [dump_trace want address argument])
])
+]) # LIBCFS_DUMP_TRACE_ADDRESS
#
-# LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
+# LC_SHRINK_CONTROL
#
-# 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
+# FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
+# pressure shrinker from Linux 3.0
#
-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>
+AC_DEFUN([LC_SHRINK_CONTROL], [
+LB_CHECK_COMPILE([if 'shrink_control' is present],
+shrink_control, [
+ #include <linux/mm.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])
+ struct shrink_control tmp = {0};
+ tmp.nr_to_scan = sizeof(tmp);
],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
+ [shrink_control is present])
])
+]) # LC_SHRINK_CONTROL
#
-# check set_mems_allowed
-# 2.6.31 adds function set_mems_allowed in cpuset.h
+# LIBCFS_PROCESS_NAMESPACE
#
-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)
-])
-])
-
+# 3.5 introduced process namespace
+AC_DEFUN([LIBCFS_PROCESS_NAMESPACE], [
+LB_CHECK_LINUX_HEADER([linux/uidgid.h], [
+ AC_DEFINE(HAVE_UIDGID_HEADER, 1,
+ [uidgid.h is present])])
+]) # LIBCFS_PROCESS_NAMESPACE
#
-# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
+# LIBCFS_I_UID_READ
#
-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;
+# 3.5 added helpers to read the new uid/gid types from VFS structures
+# SLE11 SP3 has uidgid.h but not the helpers
+#
+AC_DEFUN([LIBCFS_I_UID_READ], [
+LB_CHECK_COMPILE([if 'i_uid_read' is present],
+i_uid_read, [
+ #include <linux/fs.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_OOMADJ_IN_SIG, 1,
- [kernel store a oom parameters in signal struct])
+ i_uid_read(NULL);
],[
- AC_MSG_RESULT(no)
-])
+ AC_DEFINE(HAVE_I_UID_READ, 1, [i_uid_read is present])
])
+]) # LIBCFS_I_UID_READ
#
-# 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
+# LIBCFS_SOCK_ALLOC_FILE
#
-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)
-])
+# FC18 3.7.2-201 unexport sock_map_fd() change to
+# use sock_alloc_file().
+# upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
+#
+AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE], [
+LB_CHECK_EXPORT([sock_alloc_file], [net/socket.c], [
+ LB_CHECK_COMPILE([if 'sock_alloc_file' takes 3 arguments],
+ sock_alloc_file_3args, [
+ #include <linux/net.h>
+ ],[
+ sock_alloc_file(NULL, 0, NULL);
+ ],[
+ AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
+ [sock_alloc_file takes 3 arguments])
+ ],[
+ AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
+ [sock_alloc_file is exported])
+ ])
])
+]) # LIBCFS_SOCK_ALLOC_FILE
#
-# LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
+# LIBCFS_HAVE_CRC32
#
-# 2.6.34 adds __add_wait_queue_exclusive
+AC_DEFUN([LIBCFS_HAVE_CRC32], [
+LB_CHECK_CONFIG_IM([CRC32],
+ [have_crc32="yes"], [have_crc32="no"])
+AS_IF([test "x$have_crc32" = xyes],
+ [AC_DEFINE(HAVE_CRC32, 1,
+ [kernel compiled with CRC32 functions])])
+]) # LIBCFS_HAVE_CRC32
+
#
-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;
+# LIBCFS_ENABLE_CRC32_ACCEL
+#
+AC_DEFUN([LIBCFS_ENABLE_CRC32_ACCEL], [
+LB_CHECK_CONFIG_IM([CRYPTO_CRC32_PCLMUL],
+ [enable_crc32_crypto="no"], [enable_crc32_crypto="yes"])
+AS_IF([test "x$have_crc32" = xyes -a "x$enable_crc32_crypto" = xyes], [
+ AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
+ AC_MSG_WARN([
- __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)
-])
-])
+No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32
+])])
+]) # LIBCFS_ENABLE_CRC32_ACCEL
#
-# 2.6.35 kernel has sk_sleep function
+# LIBCFS_ENABLE_CRC32C_ACCEL
#
-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)
-])
-])
+AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL], [
+LB_CHECK_CONFIG_IM([CRYPTO_CRC32C_INTEL],
+ [enable_crc32c_crypto="no"], [enable_crc32c_crypto="yes"])
+AS_IF([test "x$enable_crc32c_crypto" = xyes], [
+ AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c])
+ AC_MSG_WARN([
+
+No crc32c pclmulqdq crypto api found, enable internal pclmulqdq based crc32c
+])])
+]) # LIBCFS_ENABLE_CRC32C_ACCEL
#
-# FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
-# pressure shrinker from Linux 3.0
+# FC19 3.12 kernel struct shrinker change
#
-AC_DEFUN([LC_SHRINK_CONTROL],
-[AC_MSG_CHECKING([shrink_control is present])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mm.h>
+AC_DEFUN([LIBCFS_SHRINKER_COUNT],[
+LB_CHECK_COMPILE([shrinker has 'count_objects'],
+shrinker_count_objects, [
+ #include <linux/mmzone.h>
+ #include <linux/shrinker.h>
],[
- struct shrink_control tmp = {0};
- tmp.nr_to_scan = sizeof(tmp);
+ ((struct shrinker*)0)->count_objects(NULL, NULL);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
- [shrink_control is present])
-],[
- AC_MSG_RESULT(no)
+ AC_DEFINE(HAVE_SHRINKER_COUNT, 1,
+ [shrinker has count_objects memeber])
])
])
#
# LIBCFS_PROG_LINUX
#
-# LNet linux kernel checks
+# LibCFS linux kernel checks
#
-AC_DEFUN([LIBCFS_PROG_LINUX],
-[
+AC_DEFUN([LIBCFS_PROG_LINUX], [
+AC_MSG_NOTICE([LibCFS kernel checks
+==============================================================================])
LIBCFS_CONFIG_PANIC_DUMPLOG
-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
-# 2.6.20
-LIBCFS_3ARGS_INIT_WORK
-# 2.6.21
-LIBCFS_2ARGS_REGISTER_SYSCTL
-# 2.6.23
-LIBCFS_KMEM_CACHE_CREATE_DTOR
-LC_REGISTER_SHRINKER
-# 2.6.24
-LIBCFS_SYSCTL_UNNUMBERED
-LIBCFS_SCATTERLIST_SETPAGE
-LIBCFS_NETWORK_NAMESPACE
-LIBCFS_FUNC_DUMP_TRACE
-# 2.6.26
-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
+# 2.6.39
+LIBCFS_DUMP_TRACE_ADDRESS
# 2.6.40 fc15
LC_SHRINK_CONTROL
-])
-
-#
-# LIBCFS_PROG_DARWIN
-#
-# Darwin checks
-#
-AC_DEFUN([LIBCFS_PROG_DARWIN],
-[LB_DARWIN_CHECK_FUNCS([get_preemption_level])
-])
+# 3.0
+LIBCFS_STACKTRACE_WARNING
+# 3.5
+LIBCFS_PROCESS_NAMESPACE
+LIBCFS_I_UID_READ
+# 3.7
+LIBCFS_SOCK_ALLOC_FILE
+# 3.8
+LIBCFS_HAVE_CRC32
+LIBCFS_ENABLE_CRC32_ACCEL
+# 3.10
+LIBCFS_ENABLE_CRC32C_ACCEL
+# 3.12
+LIBCFS_SHRINKER_COUNT
+]) # LIBCFS_PROG_LINUX
#
# LIBCFS_PATH_DEFAULTS
#
# default paths for installed files
#
-AC_DEFUN([LIBCFS_PATH_DEFAULTS],
-[
-])
+AC_DEFUN([LIBCFS_PATH_DEFAULTS], [
+]) # LIBCFS_PATH_DEFAULTS
#
# LIBCFS_CONFIGURE
#
# other configure checks
#
-AC_DEFUN([LIBCFS_CONFIGURE],
-[# lnet/utils/portals.c
+AC_DEFUN([LIBCFS_CONFIGURE], [
+AC_MSG_NOTICE([LibCFS core checks
+==============================================================================])
+
+# lnet/utils/portals.c
AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
# lnet/utils/debug.c
# lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
AC_CHECK_FUNCS([strlcpy])
-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 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"
+# libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
+AC_CHECK_FUNCS([strlcat])
# -------- Check for required packages --------------
+AC_MSG_NOTICE([LibCFS required packages checks
+==============================================================================])
-AC_MSG_CHECKING([if efence debugging support is requested])
+AC_MSG_CHECKING([whether to enable 'efence' debugging support])
AC_ARG_ENABLE(efence,
AC_HELP_STRING([--enable-efence],
- [use efence library]),
- [],[enable_efence='no'])
+ [use efence library]),
+ [], [enable_efence="no"])
AC_MSG_RESULT([$enable_efence])
-if test "$enable_efence" = "yes" ; then
+AS_IF([test "$enable_efence" = yes], [
LIBEFENCE="-lefence"
AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
-else
+], [
LIBEFENCE=""
-fi
+])
AC_SUBST(LIBEFENCE)
-
# -------- check for -lpthread support ----
+
AC_MSG_CHECKING([whether to use libpthread for libcfs library])
AC_ARG_ENABLE([libpthread],
- AC_HELP_STRING([--disable-libpthread],
- [disable libpthread]),
- [],[enable_libpthread=yes])
-if test "$enable_libpthread" = "yes" ; then
+ AC_HELP_STRING([--disable-libpthread],
+ [disable libpthread]),
+ [], [enable_libpthread="yes"])
+AC_MSG_RESULT([$enable_libpthread])
+AS_IF([test "x$enable_libpthread" = xyes], [
AC_CHECK_LIB([pthread], [pthread_create],
[ENABLE_LIBPTHREAD="yes"],
[ENABLE_LIBPTHREAD="no"])
- if test "$ENABLE_LIBPTHREAD" = "yes" ; then
- AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
+ AS_IF([test "$ENABLE_LIBPTHREAD" = yes], [
PTHREAD_LIBS="-lpthread"
AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
- else
+ ], [
PTHREAD_LIBS=""
- AC_MSG_RESULT([no libpthread is found])
- fi
+ ])
AC_SUBST(PTHREAD_LIBS)
-else
- AC_MSG_RESULT([no (disabled explicitly)])
+], [
+ AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
ENABLE_LIBPTHREAD="no"
-fi
-AC_SUBST(ENABLE_LIBPTHREAD)
-
-
])
+AC_SUBST(ENABLE_LIBPTHREAD)
+]) # LIBCFS_CONFIGURE
#
# LIBCFS_CONDITIONALS
#
-# AM_CONDITOINAL defines for lnet
-#
-AC_DEFUN([LIBCFS_CONDITIONALS],
-[
-])
+AC_DEFUN([LIBCFS_CONDITIONALS], [
+AM_CONDITIONAL(HAVE_CRC32, [test "x$have_crc32" = xyes])
+AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32, [test "x$have_crc32" = xyes -a "x$enable_crc32_crypto" = xyes])
+AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32C, [test "x$enable_crc32c_crypto" = xyes])
+]) # LIBCFS_CONDITIONALS
#
# LIBCFS_CONFIG_FILES
#
# files that should be generated with AC_OUTPUT
#
-AC_DEFUN([LIBCFS_CONFIG_FILES],
-[AC_CONFIG_FILES([
+AC_DEFUN([LIBCFS_CONFIG_FILES], [
+AC_CONFIG_FILES([
libcfs/Kernelenv
libcfs/Makefile
libcfs/autoMakefile
libcfs/libcfs/linux/Makefile
libcfs/libcfs/posix/Makefile
libcfs/libcfs/util/Makefile
-libcfs/include/libcfs/darwin/Makefile
-libcfs/libcfs/darwin/Makefile
-])
])
+]) # LIBCFS_CONFIG_FILES
git://git.whamcloud.com / fs / lustre-release.git / blobdiff