#
-# 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>
+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>
],[
- struct page page;
- &page.list;
+ ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_PAGE_LIST, 1, [struct page has a list field])
-],[
- 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>
-],[
- return sizeof(gfp_t);
+AC_DEFUN([LIBCFS_SYSCTL_CTLNAME], [
+LB_CHECK_COMPILE([if 'ctl_table' has a 'ctl_name' field],
+ctl_table_ctl_name, [
+ #include <linux/sysctl.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_GFP_T, 1, [gfp_t found])
+ struct ctl_table ct;
+ ct.ctl_name = sizeof(ct);
],[
- 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])
+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>
],[
-])
-])
-
-# 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="$EXTRA_KCFLAGS -Werror"
-LB_LINUX_TRY_COMPILE([
- #include <linux/types.h>
- #include <linux/stddef.h>
-],[
- unsigned long long *data1;
- __u64 *data2 = NULL;
-
- data1 = data2;
+ dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
- [kernel __u64 is long long type])
-],[
- AC_MSG_RESULT([no])
-])
-EXTRA_KCFLAGS="$tmp_flags"
+ AC_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;
+#
+# 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_TASK_RCU, 1,
- [task_struct has rcu field])
+ 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
-# 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_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
-# 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);
+#
+# LIBCFS_I_UID_READ
+#
+# 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_KMEM_CACHE_DESTROY_INT, 1,
- [kmem_cache_destroy(cachep) return int])
+ i_uid_read(NULL);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_I_UID_READ, 1, [i_uid_read is present])
])
+]) # LIBCFS_I_UID_READ
-# 2.6.19 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;
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_ATOMIC_PANIC_NOTIFIER, 1,
- [panic_notifier_list is atomic_notifier_head])
-],[
- AC_MSG_RESULT(NO)
-])
+# LIBCFS_SOCK_ALLOC_FILE
+#
+# 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
-# 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_HAVE_CRC32
+#
+AC_DEFUN([LIBCFS_HAVE_CRC32], [
+LB_CHECK_CONFIG_IM([CRC32],
+ [have_crc32="yes"], [have_crc32="no"])
+AS_IF([test "x$have_crc32" = xyes],
+ [AC_DEFINE(HAVE_CRC32, 1,
+ [kernel compiled with CRC32 functions])])
+]) # LIBCFS_HAVE_CRC32
#
-# LIBCFS_NETLINK
+# LIBCFS_ENABLE_CRC32_ACCEL
#
-# If we have netlink.h, and nlmsg_new takes 2 args (2.6.19)
+AC_DEFUN([LIBCFS_ENABLE_CRC32_ACCEL], [
+LB_CHECK_CONFIG_IM([CRYPTO_CRC32_PCLMUL],
+ [enable_crc32_crypto="no"], [enable_crc32_crypto="yes"])
+AS_IF([test "x$have_crc32" = xyes -a "x$enable_crc32_crypto" = xyes], [
+ AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
+ AC_MSG_WARN([No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32])])
+]) # LIBCFS_ENABLE_CRC32_ACCEL
+
#
-AC_DEFUN([LIBCFS_NETLINK],
-[AC_MSG_CHECKING([if netlink.h can be compiled])
-LB_LINUX_TRY_COMPILE([
- #include <net/netlink.h>
-],[],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_NETLINK, 1, [net/netlink.h found])
-
- AC_MSG_CHECKING([if nlmsg_new takes a 2nd argument])
- LB_LINUX_TRY_COMPILE([
- #include <net/netlink.h>
- ],[
- nlmsg_new(100, GFP_KERNEL);
- ],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_NETLINK_NL2, 1, [nlmsg_new takes 2 args])
- ],[
- AC_MSG_RESULT([no])
- ])
-],[
- AC_MSG_RESULT([no])
-])
-])
+# LIBCFS_ENABLE_CRC32C_ACCEL
+#
+AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL], [
+LB_CHECK_CONFIG_IM([CRYPTO_CRC32C_INTEL],
+ [enable_crc32c_crypto="no"], [enable_crc32c_crypto="yes"])
+AS_IF([test "x$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
-# 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>
+#
+# Kernel version 3.11 introduced ktime_get_ts64
+#
+AC_DEFUN([LIBCFS_KTIME_GET_TS64],[
+LB_CHECK_COMPILE([does function 'ktime_get_ts64' exist],
+ktime_get_ts64, [
+ #include <linux/ktime.h>
],[
- struct work_struct work;
+ struct timespec64 *ts = NULL;
- 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])
+ ktime_get_ts64(ts);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_KTIME_GET_TS64, 1,
+ ['ktime_get_ts64' is available])
])
+]) # LIBCFS_KTIME_GET_TS64
-# 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);
+#
+# Kernel version 3.12 introduced ktime_add
+#
+AC_DEFUN([LIBCFS_KTIME_ADD],[
+LB_CHECK_COMPILE([does function 'ktime_add' exist],
+ktime_add, [
+ #include <linux/ktime.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_2ARGS_REGISTER_SYSCTL, 1,
- [register_sysctl_table want 2 args])
+ ktime_t start = ktime_set(0, 0);
+ ktime_t end = start;
+ ktime_t total;
+
+ total = ktime_add(start, end);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_KTIME_ADD, 1,
+ [ktime_add is available])
])
+]) # LIBCFS_KTIME_ADD
-# 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="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="-Werror"
-LB_LINUX_TRY_COMPILE([
- #include <linux/slab.h>
- typedef struct kmem_cache cache_t;
+#
+# Kernel version 3.12 introduced ktime_after
+#
+AC_DEFUN([LIBCFS_KTIME_AFTER],[
+LB_CHECK_COMPILE([does function 'ktime_after' exist],
+ktime_after, [
+ #include <linux/ktime.h>
],[
- cache_t *cachep = NULL;
+ ktime_t start = ktime_set(0, 0);
+ ktime_t end = start;
- kmem_cache_alloc(cachep, 0);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_KMEM_CACHE, 1,
- [kernel has struct kmem_cache])
+ ktime_after(start, end);
],[
- AC_MSG_RESULT(NO)
-])
-EXTRA_KCFLAGS="$tmp_flags"
+ AC_DEFINE(HAVE_KTIME_AFTER, 1,
+ [ktime_after is available])
])
+]) # LIBCFS_KTIME_AFTER
-# 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);
+#
+# 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_KMEM_CACHE_CREATE_DTOR, 1,
- [kmem_cache_create has dtor argument])
+ ((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
-# 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);
+#
+# Kernel version 3.17 changed hlist_add_after to
+# hlist_add_behind
+#
+AC_DEFUN([LIBCFS_HLIST_ADD_AFTER],[
+LB_CHECK_COMPILE([does function 'hlist_add_after' exist],
+hlist_add_after, [
+ #include <linux/list.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
- [netlink_kernel_create want mutex for callback])
+ hlist_add_after(NULL, NULL);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_HLIST_ADD_AFTER, 1,
+ [hlist_add_after is available])
])
+]) # LIBCFS_HLIST_ADD_AFTER
-# 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])
+#
+# Kernel version 3.17 introduced struct timespec64
+#
+AC_DEFUN([LIBCFS_TIMESPEC64],[
+LB_CHECK_COMPILE([does 'struct timespec64' exist],
+timespec64, [
+ #include <linux/time.h>
],[
- AC_MSG_RESULT(NO)
-])
-])
+ struct timespec64 ts;
-# 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);
+ ts.tv_sec = 0;
+ ts.tv_nsec = 0;
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SCATTERLIST_SETPAGE, 1,
- [struct scatterlist has page member])
-],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_TIMESPEC64, 1,
+ ['struct timespec64' is available])
])
+]) # LIBCFS_TIMESPEC64
-# 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);
+#
+# Kernel version 3.17 introduced ktime_get_real_ts64
+#
+AC_DEFUN([LIBCFS_KTIME_GET_REAL_TS64],[
+LB_CHECK_COMPILE([does function 'ktime_get_real_ts64' exist],
+ktime_get_real_ts64, [
+ #include <linux/ktime.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SCATTERLIST_INITTABLE, 1,
- [sg_init_table is defined])
+ struct timespec64 *ts = NULL;
+
+ ktime_get_real_ts64(ts);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_KTIME_GET_REAL_TS64, 1,
+ ['ktime_get_real_ts64' is available])
])
+]) # LIBCFS_KTIME_GET_REAL_TS64
-# 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;
+#
+# Kernel version 3.17 introduced ktime_get_real_seconds
+#
+AC_DEFUN([LIBCFS_KTIME_GET_REAL_SECONDS],[
+LB_CHECK_COMPILE([does function 'ktime_get_real_seconds' exist],
+ktime_get_real_seconds, [
+ #include <linux/ktime.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_INIT_NET, 1,
- [kernel is support network namespaces ])
+ time64_t now;
+
+ now = ktime_get_real_seconds();
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_KTIME_GET_REAL_SECONDS, 1,
+ ['ktime_get_real_seconds' is available])
])
+]) # LIBCFS_KTIME_GET_REAL_SECONDS
-
-# 2.6.24
-AC_DEFUN([LIBCFS_NETLINK_NETNS],
-[AC_MSG_CHECKING([for netlink support net ns])
-LB_LINUX_TRY_COMPILE([
- #include <linux/netlink.h>
+#
+# Kernel version 3.17 created ktime_get_real_ns wrapper
+#
+AC_DEFUN([LIBCFS_KTIME_GET_REAL_NS],[
+LB_CHECK_COMPILE([does function 'ktime_get_real_ns' exist],
+ktime_get_real_ns, [
+ #include <linux/ktime.h>
],[
- struct net *net = NULL;
- struct mutex *lock = NULL;
+ u64 nanoseconds;
+
+ nanoseconds = ktime_get_real_ns();
+],[],[
+ AC_DEFINE(NEED_KTIME_GET_REAL_NS, 1,
+ ['ktime_get_real_ns' is not available])
+])
+]) # LIBCFS_KTIME_GET_REAL_NS
- netlink_kernel_create(net, 0, 0, NULL,
- lock,
- NULL);
+#
+# Kernel version 3.17 introduced ktime_to_timespec64
+#
+AC_DEFUN([LIBCFS_KTIME_TO_TIMESPEC64],[
+LB_CHECK_COMPILE([does function 'ktime_to_timespec64' exist],
+ktime_to_timespec64, [
+ #include <linux/ktime.h>
],[
- 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])
+ struct timespec64 ts;
+ ktime_t now;
+ ts = ktime_to_timespec64(now);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_KTIME_TO_TIMESPEC64, 1,
+ ['ktime_to_timespec64' is available])
])
+]) # LIBCFS_KTIME_TO_TIMESPEC64
-# ~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>
+#
+# Kernel version 3.19 introduced ktime_get_seconds
+#
+AC_DEFUN([LIBCFS_KTIME_GET_SECONDS],[
+LB_CHECK_COMPILE([does function 'ktime_get_seconds' exist],
+ktime_get_seconds, [
+ #include <linux/ktime.h>
],[
- gfp_t gfp = GFP_KERNEL;
+ time64_t now;
- netlink_broadcast(NULL, NULL, 0, 0, gfp);
+ now = ktime_get_seconds();
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_NL_BROADCAST_GFP, 1,
- [netlink brouacast is want to have gfp paramter])
-],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_KTIME_GET_SECONDS, 1,
+ ['ktime_get_seconds' is available])
])
+]) # LIBCFS_KTIME_GET_SECONDS
#
-# 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
+# Kernel version 4.2 changed topology_thread_cpumask
+# to topology_sibling_cpumask
#
-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;
+AC_DEFUN([LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK],[
+LB_CHECK_COMPILE([does function 'topology_sibling_cpumask' exist],
+topology_sibling_cpumask, [
+ #include <linux/topology.h>
+],[
+ const struct cpumask *mask;
- ops.address = print_addr;
- ],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
- [print_trace_address has reliable argument])
- ],[
- AC_MSG_RESULT(no)
- ],[
- ])
-EXTRA_KCFLAGS="$tmp_flags"
-])
+ mask = topology_sibling_cpumask(0);
+],[
+ AC_DEFINE(HAVE_TOPOLOGY_SIBLING_CPUMASK, 1,
+ [topology_sibling_cpumask is available])
])
+]) # LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
+#
+# Kernel version 4.2 commit df6b35f409af0a8ff1ef62f552b8402f3fef8665
+# header file i387.h was renamed to fpu/api.h
+#
+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
-# 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);
+#
+# Kernel version 4.5-rc1 commit d12481bc58fba89427565f8592e88446ec084a24
+# added crypto hash helpers
+#
+AC_DEFUN([LIBCFS_CRYPTO_HASH_HELPERS], [
+LB_CHECK_COMPILE([does crypto hash helper functions exist],
+crypto_hash_helpers, [
+ #include <crypto/hash.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SEM_COUNT_ATOMIC, 1,
- [semaphore counter is atomic])
+ crypto_ahash_alg_name(NULL);
+ crypto_ahash_driver_name(NULL);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(HAVE_CRYPTO_HASH_HELPERS, 1,
+ [crypto hash helper functions are available])
])
+]) # LIBCFS_CRYPTO_HASH_HELPERS
-# 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);
+#
+# LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
+#
+# linux 4.6 kernel changed stacktrace_ops address to return an int
+#
+AC_DEFUN([LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT], [
+LB_CHECK_COMPILE([if 'struct stacktrace_ops' address function returns an int],
+stacktrace_ops_address_return_int, [
+ #include <asm/stacktrace.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SOCK_MAP_FD_2ARG, 1,
- [sock_map_fd have second argument])
+ int rc;
+
+ rc = ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
],[
- AC_MSG_RESULT(NO)
-])
+ AC_DEFINE(STACKTRACE_OPS_ADDRESS_RETURN_INT, 1,
+ ['struct stacktrace_ops' address function returns an int])
])
+]) # LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
-# LIBCFS_CRED_WRAPPERS
#
-# wrappers for task's credentials are in sles11
+# Kernel version 4.6 removed both struct task_struct and struct mm_struct
+# arguments to get_user_pages
#
-AC_DEFUN([LIBCFS_CRED_WRAPPERS],
-[AC_MSG_CHECKING([if kernel has wrappers for task's credentials])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
+AC_DEFUN([LIBCFS_GET_USER_PAGES_6ARG], [
+LB_CHECK_COMPILE([if 'get_user_pages()' takes 6 arguments],
+get_user_pages_6arg, [
+ #include <linux/mm.h>
],[
- uid_t uid;
+ int rc;
- uid = current_uid();
+ rc = get_user_pages(0, 0, 0, 0, NULL, NULL);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CRED_WRAPPERS, 1, [task's cred wrappers found])
-],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_GET_USER_PAGES_6ARG, 1,
+ [get_user_pages takes 6 arguments])
])
+]) # LIBCFS_GET_USER_PAGES_6ARG
#
-# LN_STRUCT_CRED_IN_TASK
+# LIBCFS_STACKTRACE_OPS
#
-# struct cred was introduced in 2.6.29 to streamline credentials in task struct
+# Kernel version 4.8 commit c8fe4609827aedc9c4b45de80e7cdc8ccfa8541b
+# removed both struct stacktrace_ops and dump_trace() function
#
-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_DEFUN([LIBCFS_STACKTRACE_OPS], [
+LB_CHECK_COMPILE([if 'struct stacktrace_ops' exists],
+stacktrace_ops, [
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_STRUCT_CRED, 1, [struct cred found])
+ struct stacktrace_ops ops;
+ ops.stack = NULL;
],[
- AC_MSG_RESULT([no])
-])
+ AC_DEFINE(HAVE_STACKTRACE_OPS, 1,
+ [struct stacktrace_ops exists])
])
+]) # LIBCFS_STACKTRACE_OPS
#
-# LIBCFS_FUNC_UNSHARE_FS_STRUCT
-#
-# unshare_fs_struct was introduced in 2.6.30 to prevent others to directly
-# mess with copy_fs_struct
+# Kernel version 4.9 commit 768ae309a96103ed02eb1e111e838c87854d8b51
+# mm: replace get_user_pages() write/force parameters with gup_flags
#
-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_GET_USER_PAGES_GUP_FLAGS], [
+LB_CHECK_COMPILE([if 'get_user_pages()' takes gup_flags in arguments],
+get_user_pages_gup_flags, [
+ #include <linux/mm.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_UNSHARE_FS_STRUCT, 1, [unshare_fs_struct found])
+ int rc;
+ rc = get_user_pages(0, 0, FOLL_WRITE, NULL, NULL);
],[
- AC_MSG_RESULT([no])
-])
-EXTRA_KCFLAGS="$tmp_flags"
+ AC_DEFINE(HAVE_GET_USER_PAGES_GUP_FLAGS, 1,
+ [get_user_pages takes gup_flags in arguments])
])
+]) # LIBCFS_GET_USER_PAGES_GUP_FLAGS
#
# 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
-# 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
+# 3.11
+LIBCFS_KTIME_GET_TS64
+# 3.12
+LIBCFS_KTIME_ADD
+LIBCFS_KTIME_AFTER
+LIBCFS_SHRINKER_COUNT
+# 3.17
+LIBCFS_HLIST_ADD_AFTER
+LIBCFS_TIMESPEC64
+LIBCFS_KTIME_GET_REAL_TS64
+LIBCFS_KTIME_GET_REAL_SECONDS
+LIBCFS_KTIME_GET_REAL_NS
+LIBCFS_KTIME_TO_TIMESPEC64
+# 3.19
+LIBCFS_KTIME_GET_SECONDS
+# 4.2
+LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
+LIBCFS_FPU_API
+# 4.5
+LIBCFS_CRYPTO_HASH_HELPERS
+# 4.6
+LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
+LIBCFS_GET_USER_PAGES_6ARG
+# 4.8
+LIBCFS_STACKTRACE_OPS
+# 4.9
+LIBCFS_GET_USER_PAGES_GUP_FLAGS
+]) # 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>])
+# lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
+AC_CHECK_FUNCS([strlcpy])
-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>])
+# 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>])
+# libcfs/include/libcfs/linux/linux-prim.h, ...
+AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.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>])
+# 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_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$enable_readline" = xyes], [
+ AC_CHECK_LIB([readline], [readline], [
+ LIBREADLINE="-lreadline"
+ AC_DEFINE(HAVE_LIBREADLINE, 1,
+ [readline library is available])
+ ])
+])
+AC_SUBST(LIBREADLINE)
-AC_MSG_CHECKING([if efence debugging support is requested])
-AC_ARG_ENABLE(efence,
- AC_HELP_STRING([--enable-efence],
- [use efence library]),
- [],[enable_efence='no'])
-AC_MSG_RESULT([$enable_efence])
-if test "$enable_efence" = "yes" ; then
- LIBEFENCE="-lefence"
- AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
-else
- LIBEFENCE=""
-fi
-AC_SUBST(LIBEFENCE)
-
-
-# -------- check for -lpthread support ----
AC_MSG_CHECKING([whether to use libpthread for libcfs library])
AC_ARG_ENABLE([libpthread],
- AC_HELP_STRING([--disable-libpthread],
- [disable libpthread]),
- [],[enable_libpthread=yes])
-if test "$enable_libpthread" = "yes" ; then
- AC_CHECK_LIB([pthread], [pthread_create],
- [ENABLE_LIBPTHREAD="yes"],
- [ENABLE_LIBPTHREAD="no"])
- if test "$ENABLE_LIBPTHREAD" = "yes" ; then
- AC_MSG_RESULT([$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])
- else
- PTHREAD_LIBS=""
- AC_MSG_RESULT([no libpthread is found])
- fi
- AC_SUBST(PTHREAD_LIBS)
-else
- AC_MSG_RESULT([no (disabled explicitly)])
- ENABLE_LIBPTHREAD="no"
-fi
-AC_SUBST(ENABLE_LIBPTHREAD)
-
-
+ 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
git://git.whamcloud.com / fs / lustre-release.git / blobdiff