#
-# LN_CONFIG_CDEBUG
+# LIBCFS_CONFIG_CDEBUG
#
# whether to enable various libcfs debugs (CDEBUG, ENTRY/EXIT, LASSERT, etc.)
#
-AC_DEFUN([LN_CONFIG_CDEBUG],
-[
+AC_DEFUN([LIBCFS_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$enable_libcfs_assert = xyes],
+ [AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])])
+]) # LIBCFS_CONFIG_CDEBUG
#
# LIBCFS_CONFIG_PANIC_DUMPLOG
#
# check if tunable panic_dumplog is wanted
#
-AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG],
-[AC_MSG_CHECKING([for tunable panic_dumplog support])
+AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG], [
+AC_MSG_CHECKING([whether to use tunable 'panic_dumplog' support])
AC_ARG_ENABLE([panic_dumplog],
- AC_HELP_STRING([--enable-panic_dumplog],
- [enable panic_dumplog]),
- [],[enable_panic_dumplog='no'])
-if test x$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
-])
+ 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_STRUCT_PAGE_LIST
+# LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
#
-# 2.6.4 no longer has page->list
+# 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
#
-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_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_PAGE_LIST, 1, [struct page has a list field])
+ ((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_STRUCT_SIGHAND
+# LIBCFS_STACKTRACE_WARNING
#
-# red hat 2.4 adds sighand to struct task_struct
+# 3.0 removes stacktrace_ops warning* functions
#
-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_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>
],[
- AC_DEFINE(CONFIG_RH_2_4_20, 1, [this kernel contains Red Hat 2.4.20 patches])
- AC_MSG_RESULT([yes])
+ ((struct stacktrace_ops *)0)->warning(NULL, NULL);
],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_STACKTRACE_WARNING, 1,
+ [stacktrace_ops.warning is exist])
])
+]) # LIBCFS_STACKTRACE_WARNING
#
-# LIBCFS_FUNC_CPU_ONLINE
+# LC_SHRINKER_WANT_SHRINK_PTR
#
-# cpu_online is different in rh 2.4, vanilla 2.4, and 2.6
+# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
#
-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_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_CPU_ONLINE, 1, [cpu_online 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
#
-# LIBCFS_TYPE_GFP_T
+# LIBCFS_SYSCTL_CTLNAME
#
-# check if gfp_t is typedef-ed
+# 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
#
-AC_DEFUN([LIBCFS_TYPE_GFP_T],
-[AC_MSG_CHECKING([if kernel defines gfp_t])
-LB_LINUX_TRY_COMPILE([
- #include <linux/gfp.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>
],[
- return sizeof(gfp_t);
+ struct ctl_table ct;
+ ct.ctl_name = sizeof(ct);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_GFP_T, 1, [gfp_t found])
-],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
+ [ctl_table has ctl_name field])
])
+]) # LIBCFS_SYSCTL_CTLNAME
#
-# LIBCFS_TYPE_CPUMASK_T
+# LIBCFS_KSTRTOUL
#
-# same goes for cpumask_t
+# 2.6.38 kstrtoul is added
#
-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_DEFUN([LIBCFS_KSTRTOUL], [
+LB_CHECK_COMPILE([if Linux kernel has 'kstrtoul'],
+kstrtoul, [
+ #include <linux/kernel.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CPUMASK_T, 1, [cpumask_t found])
+ unsigned long result;
+ return kstrtoul("12345", 0, &result);
],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_KSTRTOUL, 1,
+ [kernel has kstrtoul])
])
+]) # LIBCFS_KSTRTOUL
#
-# LIBCFS_FUNC_SHOW_TASK
+# LIBCFS_DUMP_TRACE_ADDRESS
#
-# we export show_task(), but not all kernels have it (yet)
+# 2.6.39 adds a base pointer address argument to dump_trace
#
-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>
- #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="$tmp_flags"
-AC_MSG_CHECKING([kernel __u64 is long long type])
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Werror"
-LB_LINUX_TRY_COMPILE([
- #include <linux/types.h>
- #include <linux/stddef.h>
-],[
- unsigned long long *data1;
- __u64 *data2 = NULL;
-
- data1 = data2;
+AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS], [
+LB_CHECK_COMPILE([if 'dump_trace' want address],
+dump_trace_address, [
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
- [kernel __u64 is long long type])
+ dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
],[
- AC_MSG_RESULT([no])
-])
-EXTRA_KCFLAGS="$tmp_flags"
+ AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
+ [dump_trace want address argument])
])
+]) # LIBCFS_DUMP_TRACE_ADDRESS
-# 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],
-[LB_CHECK_SYMBOL_EXPORT([tasklist_lock],
-[kernel/fork.c],[
-AC_DEFINE(HAVE_TASKLIST_LOCK, 1,
- [tasklist_lock exported])
-],[
-])
-])
-
-# 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 = 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)
-])
-])
-
-# 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])
-LB_LINUX_TRY_COMPILE([
- #include <linux/notifier.h>
- #include <linux/kernel.h>
-],[
- struct atomic_notifier_head panic_notifier_list;
+# LC_SHRINK_CONTROL
+#
+# FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
+# pressure shrinker from Linux 3.0
+#
+AC_DEFUN([LC_SHRINK_CONTROL], [
+LB_CHECK_COMPILE([if 'shrink_control' is present],
+shrink_control, [
+ #include <linux/atomic.h>
+ #include <linux/mm.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_ATOMIC_PANIC_NOTIFIER, 1,
- [panic_notifier_list is atomic_notifier_head])
+ 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
-# 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_PROCESS_NAMESPACE
+#
+# 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
#
-# LIBCFS_NETLINK
+# LIBCFS_I_UID_READ
#
-# If we have netlink.h, and nlmsg_new takes 2 args (2.6.19)
+# 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_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],
-[AC_MSG_CHECKING([check INIT_WORK want 3 args])
-LB_LINUX_TRY_COMPILE([
- #include <linux/workqueue.h>
-],[
- struct work_struct work;
-
- 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>
-],[
- return 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)
-])
-])
-
-# 2.6.21 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])
-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)
-])
-])
-
-# 2.6.24
-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([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)
-])
-])
-
-# 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_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_NL_BROADCAST_GFP, 1,
- [netlink brouacast is want to have gfp paramter])
+ i_uid_read(NULL);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_I_UID_READ, 1, [i_uid_read is present])
])
+]) # LIBCFS_I_UID_READ
#
-# LIBCFS_FUNC_DUMP_TRACE
+# LIBCFS_SOCK_ALLOC_FILE
#
-# 2.6.23 exports dump_trace() so we can dump_stack() on any task
-# 2.6.24 has stacktrace_ops.address with "reliable" parameter
+# FC18 3.7.2-201 unexport sock_map_fd() change to
+# use sock_alloc_file().
+# upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
#
-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_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>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
- [print_trace_address has reliable argument])
+ sock_alloc_file(NULL, 0, NULL);
],[
- AC_MSG_RESULT(no)
+ 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])
])
-EXTRA_KCFLAGS="$tmp_flags"
-])
])
+]) # LIBCFS_SOCK_ALLOC_FILE
+#
+# LIBCFS_HAVE_CRC32
+#
+AC_DEFUN([LIBCFS_HAVE_CRC32], [
+LB_CHECK_CONFIG_IM([CRC32],
+ [have_crc32="yes"], [have_crc32="no"])
+AS_IF([test "x$have_crc32" = xyes],
+ [AC_DEFINE(HAVE_CRC32, 1,
+ [kernel compiled with CRC32 functions])])
+]) # LIBCFS_HAVE_CRC32
-# 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>
-],[
- struct semaphore s;
-
- atomic_read(&s.count);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SEM_COUNT_ATOMIC, 1,
- [semaphore counter is atomic])
-],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# 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_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([No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32])])
+]) # LIBCFS_ENABLE_CRC32_ACCEL
-# LIBCFS_CRED_WRAPPERS
#
-# wrappers for task's credentials are in sles11
+# LIBCFS_ENABLE_CRC32C_ACCEL
#
-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;
+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$enable_crc32c_crypto" = xyes], [
+ AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c])
+ AC_MSG_WARN([No crc32c pclmulqdq crypto api found, enable internal pclmulqdq based crc32c])])
+]) # LIBCFS_ENABLE_CRC32C_ACCEL
- uid = current_uid();
+#
+# FC19 3.12 kernel struct shrinker change
+#
+AC_DEFUN([LIBCFS_SHRINKER_COUNT],[
+LB_CHECK_COMPILE([shrinker has 'count_objects'],
+shrinker_count_objects, [
+ #include <linux/mmzone.h>
+ #include <linux/shrinker.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CRED_WRAPPERS, 1, [task's cred wrappers found])
+ ((struct shrinker*)0)->count_objects(NULL, NULL);
],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_SHRINKER_COUNT, 1,
+ [shrinker has count_objects member])
])
+]) # LIBCFS_SHRINKER_COUNT
#
-# LN_STRUCT_CRED_IN_TASK
-#
-# struct cred was introduced in 2.6.29 to streamline credentials in task struct
+# Kernel version 3.17 changed hlist_add_after to
+# hlist_add_behind
#
-AC_DEFUN([LIBCFS_STRUCT_CRED_IN_TASK],
-[AC_MSG_CHECKING([if kernel has struct cred])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
+AC_DEFUN([LIBCFS_HLIST_ADD_AFTER],[
+LB_CHECK_COMPILE([does function 'hlist_add_after' exist],
+hlist_add_after, [
+ #include <linux/list.h>
],[
- struct task_struct *tsk = NULL;
- tsk->real_cred = NULL;
+ hlist_add_after(NULL, NULL);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_STRUCT_CRED, 1, [struct cred found])
-],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_HLIST_ADD_AFTER, 1,
+ [hlist_add_after is available])
])
+]) # LIBCFS_HLIST_ADD_AFTER
#
-# LIBCFS_FUNC_UNSHARE_FS_STRUCT
+# Kernel version 4.2 changed topology_thread_cpumask
+# to topology_sibling_cpumask
#
-# unshare_fs_struct was introduced in 2.6.30 to prevent others to directly
-# mess with copy_fs_struct
-#
-AC_DEFUN([LIBCFS_FUNC_UNSHARE_FS_STRUCT],
-[AC_MSG_CHECKING([if kernel defines unshare_fs_struct()])
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="-Werror"
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
- #include <linux/fs_struct.h>
-],[
- unshare_fs_struct();
+AC_DEFUN([LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK],[
+LB_CHECK_COMPILE([does function 'topology_sibling_cpumask' exist],
+topology_sibling_cpumask, [
+ #include <linux/topology.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_UNSHARE_FS_STRUCT, 1, [unshare_fs_struct found])
+ const struct cpumask *mask;
+
+ mask = topology_sibling_cpumask(0);
],[
- AC_MSG_RESULT([no])
-])
-EXTRA_KCFLAGS="$tmp_flags"
+ AC_DEFINE(HAVE_TOPOLOGY_SIBLING_CPUMASK, 1,
+ [topology_sibling_cpumask is available])
])
+]) # LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
#
-# LIBCFS_HAVE_IS_COMPAT_TASK
+# Kernel version 4.2 commit df6b35f409af0a8ff1ef62f552b8402f3fef8665
+# header file i387.h was renamed to fpu/api.h
#
-# 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 = is_compat_task();
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
-],[
- AC_MSG_RESULT([no])
-])
-])
+AC_DEFUN([LIBCFS_FPU_API], [
+LB_CHECK_LINUX_HEADER([asm/fpu/api.h], [
+ AC_DEFINE(HAVE_FPU_API_HEADER, 1,
+ [fpu/api.h is present])])
+]) # LIBCFS_FPU_API
#
# LIBCFS_PROG_LINUX
#
-# LNet linux kernel checks
+# LibCFS linux kernel checks
#
-AC_DEFUN([LIBCFS_PROG_LINUX],
-[
-LIBCFS_FUNC_CPU_ONLINE
-LIBCFS_TYPE_GFP_T
-LIBCFS_TYPE_CPUMASK_T
+AC_DEFUN([LIBCFS_PROG_LINUX], [
+AC_MSG_NOTICE([LibCFS kernel checks
+==============================================================================])
LIBCFS_CONFIG_PANIC_DUMPLOG
-LIBCFS_STRUCT_PAGE_LIST
-LIBCFS_STRUCT_SIGHAND
-LIBCFS_FUNC_SHOW_TASK
-LIBCFS_U64_LONG_LONG
-LIBCFS_TASK_RCU
-# 2.6.18
-LIBCFS_TASKLIST_LOCK
-LIBCFS_HAVE_IS_COMPAT_TASK
-# 2.6.19
-LIBCFS_NETLINK
-LIBCFS_NLMSG_MULTICAST
-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
-LIBCFS_NETLINK_CBMUTEX
-# 2.6.24
-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
-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
-])
-
-#
-# LIBCFS_PROG_DARWIN
-#
-# Darwin checks
-#
-AC_DEFUN([LIBCFS_PROG_DARWIN],
-[LB_DARWIN_CHECK_FUNCS([get_preemption_level])
-])
+# 2.6.32
+LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
+LC_SHRINKER_WANT_SHRINK_PTR
+# 2.6.33
+LIBCFS_SYSCTL_CTLNAME
+# 2.6.38
+LIBCFS_KSTRTOUL
+# 2.6.39
+LIBCFS_DUMP_TRACE_ADDRESS
+# 2.6.40 fc15
+LC_SHRINK_CONTROL
+# 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
+# 3.17
+LIBCFS_HLIST_ADD_AFTER
+# 4.2
+LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
+LIBCFS_FPU_API
+]) # 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/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>])
+# lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
+AC_CHECK_FUNCS([strlcpy])
-AC_CHECK_TYPE([__u8],
- [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
- [],
- [#include <asm/types.h>])
+# libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
+AC_CHECK_FUNCS([strlcat])
-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>])
+# libcfs/include/libcfs/linux/linux-prim.h, ...
+AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
-AC_CHECK_TYPE([__u64],
- [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
- [],
- [#include <asm/types.h>])
+# libcfs/include/libcfs/linux/linux-prim.h
+AC_CHECK_HEADERS([linux/random.h], [], [],
+ [#ifdef HAVE_LINUX_TYPES_H
+ #include <linux/types.h>
+ #endif
+ ])
-AC_CHECK_TYPE([__s64],
- [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
- [],
- [#include <asm/types.h>])
+# libcfs/include/libcfs/linux/libcfs.h
+# libcfs/include/libcfs/byteorder.h
+# libcfs/libcfs/util/nidstrings.c
+AC_CHECK_HEADERS([netdb.h asm/types.h endian.h])
+AC_CHECK_FUNCS([gethostbyname])
# -------- Check for required packages --------------
-
-AC_MSG_CHECKING([if efence debugging support is requested])
-AC_ARG_ENABLE(efence,
- AC_HELP_STRING([--enable-efence],
- [use efence library]),
- [],[enable_efence='no'])
-AC_MSG_RESULT([$enable_efence])
-if test "$enable_efence" = "yes" ; then
- LIBEFENCE="-lefence"
- AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
-else
- LIBEFENCE=""
-fi
-AC_SUBST(LIBEFENCE)
-
-# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_pthread.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
-#
-# DESCRIPTION
-#
-# This macro figures out how to build C programs using POSIX threads. It
-# sets the PTHREAD_LIBS output variable to the threads library and linker
-# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
-# flags that are needed. (The user can also force certain compiler
-# flags/libs to be tested by setting these environment variables.)
-#
-# Also sets PTHREAD_CC to any special C compiler that is needed for
-# multi-threaded programs (defaults to the value of CC otherwise). (This
-# is necessary on AIX to use the special cc_r compiler alias.)
-#
-# NOTE: You are assumed to not only compile your program with these flags,
-# but also link it with them as well. e.g. you should link with
-# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
-#
-# If you are only building threads programs, you may wish to use these
-# variables in your default LIBS, CFLAGS, and CC:
-#
-# LIBS="$PTHREAD_LIBS $LIBS"
-# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-# CC="$PTHREAD_CC"
-#
-# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
-# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
-# (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
-#
-# ACTION-IF-FOUND is a list of shell commands to run if a threads library
-# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
-# is not found. If ACTION-IF-FOUND is not specified, the default action
-# will define HAVE_PTHREAD.
-#
-# Please let the authors know if this macro fails on any platform, or if
-# you have any other suggestions or comments. This macro was based on work
-# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
-# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
-# Alejandro Forero Cuervo to the autoconf macro repository. We are also
-# grateful for the helpful feedback of numerous users.
-#
-# LICENSE
-#
-# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
-#
-# This program is free software: you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by the
-# Free Software Foundation, either version 3 of the License, or (at your
-# option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-# Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-# As a special exception, the respective Autoconf Macro's copyright owner
-# gives unlimited permission to copy, distribute and modify the configure
-# scripts that are the output of Autoconf when processing the Macro. You
-# need not follow the terms of the GNU General Public License when using
-# or distributing such scripts, even though portions of the text of the
-# Macro appear in them. The GNU General Public License (GPL) does govern
-# all other use of the material that constitutes the Autoconf Macro.
-#
-# This special exception to the GPL applies to versions of the Autoconf
-# Macro released by the Autoconf Archive. When you make and distribute a
-# modified version of the Autoconf Macro, you may extend this special
-# exception to the GPL to apply to your modified version as well.
-
-#serial 8
-
-AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
-AC_DEFUN([AX_PTHREAD], [
-AC_REQUIRE([AC_CANONICAL_HOST])
-AC_LANG_SAVE
-AC_LANG_C
-ax_pthread_ok=no
-
-# We used to check for pthread.h first, but this fails if pthread.h
-# requires special compiler flags (e.g. on True64 or Sequent).
-# It gets checked for in the link test anyway.
-
-# First of all, check if the user has set any of the PTHREAD_LIBS,
-# etcetera environment variables, and if threads linking works using
-# them:
-if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
- save_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
- save_LIBS="$LIBS"
- LIBS="$PTHREAD_LIBS $LIBS"
- AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
- AC_TRY_LINK_FUNC(pthread_join, ax_pthread_ok=yes)
- AC_MSG_RESULT($ax_pthread_ok)
- if test x"$ax_pthread_ok" = xno; then
- PTHREAD_LIBS=""
- PTHREAD_CFLAGS=""
- fi
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
-fi
-
-# We must check for the threads library under a number of different
-# names; the ordering is very important because some systems
-# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
-# libraries is broken (non-POSIX).
-
-# Create a list of thread flags to try. Items starting with a "-" are
-# C compiler flags, and other items are library names, except for "none"
-# which indicates that we try without any flags at all, and "pthread-config"
-# which is a program returning the flags for the Pth emulation library.
-
-ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
-
-# The ordering *is* (sometimes) important. Some notes on the
-# individual items follow:
-
-# pthreads: AIX (must check this before -lpthread)
-# none: in case threads are in libc; should be tried before -Kthread and
-# other compiler flags to prevent continual compiler warnings
-# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
-# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
-# -pthreads: Solaris/gcc
-# -mthreads: Mingw32/gcc, Lynx/gcc
-# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
-# doesn't hurt to check since this sometimes defines pthreads too;
-# also defines -D_REENTRANT)
-# ... -mt is also the pthreads flag for HP/aCC
-# pthread: Linux, etcetera
-# --thread-safe: KAI C++
-# pthread-config: use pthread-config program (for GNU Pth library)
-
-case "${host_cpu}-${host_os}" in
- *solaris*)
-
- # On Solaris (at least, for some versions), libc contains stubbed
- # (non-functional) versions of the pthreads routines, so link-based
- # tests will erroneously succeed. (We need to link with -pthreads/-mt/
- # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
- # a function called by this macro, so we could check for that, but
- # who knows whether they'll stub that too in a future libc.) So,
- # we'll just look for -pthreads and -lpthread first:
-
- ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
- ;;
-
- *-darwin*)
- ax_pthread_flags="-pthread $ax_pthread_flags"
- ;;
-esac
-
-if test x"$ax_pthread_ok" = xno; then
-for flag in $ax_pthread_flags; do
-
- case $flag in
- none)
- AC_MSG_CHECKING([whether pthreads work without any flags])
- ;;
-
- -*)
- AC_MSG_CHECKING([whether pthreads work with $flag])
- PTHREAD_CFLAGS="$flag"
- ;;
-
- pthread-config)
- AC_CHECK_PROG(ax_pthread_config, pthread-config, yes, no)
- if test x"$ax_pthread_config" = xno; then continue; fi
- PTHREAD_CFLAGS="`pthread-config --cflags`"
- PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
- ;;
-
- *)
- AC_MSG_CHECKING([for the pthreads library -l$flag])
- PTHREAD_LIBS="-l$flag"
- ;;
- esac
-
- save_LIBS="$LIBS"
- save_CFLAGS="$CFLAGS"
- LIBS="$PTHREAD_LIBS $LIBS"
- CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-
- # Check for various functions. We must include pthread.h,
- # since some functions may be macros. (On the Sequent, we
- # need a special flag -Kthread to make this header compile.)
- # We check for pthread_join because it is in -lpthread on IRIX
- # while pthread_create is in libc. We check for pthread_attr_init
- # due to DEC craziness with -lpthreads. We check for
- # pthread_cleanup_push because it is one of the few pthread
- # functions on Solaris that doesn't have a non-functional libc stub.
- # We try pthread_create on general principles.
- AC_TRY_LINK([#include <pthread.h>
- static void routine(void* a) {a=0;}
- static void* start_routine(void* a) {return a;}],
- [pthread_t th; pthread_attr_t attr;
- pthread_join(th, 0);
- pthread_attr_init(&attr);
- pthread_cleanup_push(routine, 0);
- pthread_create(&th,0,start_routine,0);
- pthread_cleanup_pop(0); ],
- [ax_pthread_ok=yes])
-
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
-
- AC_MSG_RESULT($ax_pthread_ok)
- if test "x$ax_pthread_ok" = xyes; then
- break;
- fi
-
- PTHREAD_LIBS=""
- PTHREAD_CFLAGS=""
-done
-fi
-
-# Various other checks:
-if test "x$ax_pthread_ok" = xyes; then
- save_LIBS="$LIBS"
- LIBS="$PTHREAD_LIBS $LIBS"
- save_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-
- # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
- AC_MSG_CHECKING([for joinable pthread attribute])
- attr_name=unknown
- for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
- AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
- [attr_name=$attr; break])
- done
- AC_MSG_RESULT($attr_name)
- if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
- AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
- [Define to necessary symbol if this constant
- uses a non-standard name on your system.])
- fi
-
- AC_MSG_CHECKING([if more special flags are required for pthreads])
- flag=no
- case "${host_cpu}-${host_os}" in
- *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
- *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
- esac
- AC_MSG_RESULT(${flag})
- if test "x$flag" != xno; then
- PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
- fi
-
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
-
- # More AIX lossage: must compile with xlc_r or cc_r
- if test x"$GCC" != xyes; then
- AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
- else
- PTHREAD_CC=$CC
- fi
-else
- PTHREAD_CC="$CC"
-fi
-
-AC_SUBST(PTHREAD_LIBS)
-AC_SUBST(PTHREAD_CFLAGS)
-AC_SUBST(PTHREAD_CC)
-
-# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test x"$ax_pthread_ok" = xyes; then
- ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
- :
-else
- ax_pthread_ok=no
- $2
-fi
-AC_LANG_RESTORE
-])dnl AX_PTHREAD
-
-AX_PTHREAD([[]])
-
-
+AC_MSG_NOTICE([LibCFS required packages checks
+==============================================================================])
+
+AC_MSG_CHECKING([whether to enable readline support])
+AC_ARG_ENABLE(readline,
+ AC_HELP_STRING([--disable-readline],
+ [disable readline support]),
+ [], [enable_readline="yes"])
+AC_MSG_RESULT([$enable_readline])
+
+LIBREADLINE=""
+AS_IF([test "x$enable_readline" = xyes], [
+ AC_CHECK_LIB([readline], [readline], [
+ LIBREADLINE="-lreadline"
+ AC_DEFINE(HAVE_LIBREADLINE, 1,
+ [readline library is available])
+ ])
+])
+AC_SUBST(LIBREADLINE)
+
+AC_MSG_CHECKING([whether to use libpthread for libcfs library])
+AC_ARG_ENABLE([libpthread],
+ AC_HELP_STRING([--disable-libpthread],
+ [disable libpthread]),
+ [], [enable_libpthread="yes"])
+AC_MSG_RESULT([$enable_libpthread])
+
+PTHREAD_LIBS=""
+AS_IF([test "x$enable_libpthread" = xyes], [
+ AC_CHECK_LIB([pthread], [pthread_create], [
+ PTHREAD_LIBS="-lpthread"
+ AC_DEFINE([HAVE_LIBPTHREAD], 1,
+ [use libpthread for libcfs library])
+ ])
+], [
+ AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
])
+AC_SUBST(PTHREAD_LIBS)
+]) # LIBCFS_CONFIGURE
#
# LIBCFS_CONDITIONALS
#
-# AM_CONDITOINAL defines for lnet
-#
-AC_DEFUN([LIBCFS_CONDITIONALS],
-[
-])
+AC_DEFUN([LIBCFS_CONDITIONALS], [
+AM_CONDITIONAL(HAVE_CRC32, [test "x$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([
-libcfs/Kernelenv
+AC_DEFUN([LIBCFS_CONFIG_FILES], [
+AC_CONFIG_FILES([
libcfs/Makefile
libcfs/autoMakefile
libcfs/autoconf/Makefile
libcfs/include/Makefile
libcfs/include/libcfs/Makefile
libcfs/include/libcfs/linux/Makefile
-libcfs/include/libcfs/posix/Makefile
libcfs/include/libcfs/util/Makefile
libcfs/libcfs/Makefile
libcfs/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