tools headers UAPI: Sync openat2.h with the kernel sources

[linux-2.6-microblaze.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index 096e1af..22946fe 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -19,37 +19,43 @@ config CC_VERSION_TEXT
            CC_VERSION_TEXT so it is recorded in include/config/auto.conf.cmd.
            When the compiler is updated, Kconfig will be invoked.
 
-         - Ensure full rebuild when the compier is updated
+         - Ensure full rebuild when the compiler is updated
            include/linux/kconfig.h contains this option in the comment line so
            fixdep adds include/config/cc/version/text.h into the auto-generated
            dependency. When the compiler is updated, syncconfig will touch it
            and then every file will be rebuilt.
 
 config CC_IS_GCC
-       def_bool $(success,echo "$(CC_VERSION_TEXT)" | grep -q gcc)
+       def_bool $(success,test "$(cc-name)" = GCC)
 
 config GCC_VERSION
        int
-       default $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) if CC_IS_GCC
+       default $(cc-version) if CC_IS_GCC
        default 0
 
-config LD_VERSION
-       int
-       default $(shell,$(LD) --version | $(srctree)/scripts/ld-version.sh)
-
 config CC_IS_CLANG
-       def_bool $(success,echo "$(CC_VERSION_TEXT)" | grep -q clang)
-
-config LD_IS_LLD
-       def_bool $(success,$(LD) -v | head -n 1 | grep -q LLD)
+       def_bool $(success,test "$(cc-name)" = Clang)
 
 config CLANG_VERSION
        int
-       default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
+       default $(cc-version) if CC_IS_CLANG
+       default 0
+
+config LD_IS_BFD
+       def_bool $(success,test "$(ld-name)" = BFD)
+
+config LD_VERSION
+       int
+       default $(ld-version) if LD_IS_BFD
+       default 0
+
+config LD_IS_LLD
+       def_bool $(success,test "$(ld-name)" = LLD)
 
 config LLD_VERSION
        int
-       default $(shell,$(srctree)/scripts/lld-version.sh $(LD))
+       default $(ld-version) if LD_IS_LLD
+       default 0
 
 config CC_CAN_LINK
        bool
@@ -1193,6 +1199,7 @@ endif # NAMESPACES
 config CHECKPOINT_RESTORE
        bool "Checkpoint/restore support"
        select PROC_CHILDREN
+       select KCMP
        default n
        help
          Enables additional kernel features in a sake of checkpoint/restore.
@@ -1736,6 +1743,16 @@ config ARCH_HAS_MEMBARRIER_CALLBACKS
 config ARCH_HAS_MEMBARRIER_SYNC_CORE
        bool
 
+config KCMP
+       bool "Enable kcmp() system call" if EXPERT
+       help
+         Enable the kernel resource comparison system call. It provides
+         user-space with the ability to compare two processes to see if they
+         share a common resource, such as a file descriptor or even virtual
+         memory space.
+
+         If unsure, say N.
+
 config RSEQ
        bool "Enable rseq() system call" if EXPERT
        default y
@@ -1850,20 +1867,6 @@ config SLUB_DEBUG
          SLUB sysfs support. /sys/slab will not exist and there will be
          no support for cache validation etc.
 
-config SLUB_MEMCG_SYSFS_ON
-       default n
-       bool "Enable memcg SLUB sysfs support by default" if EXPERT
-       depends on SLUB && SYSFS && MEMCG
-       help
-         SLUB creates a directory under /sys/kernel/slab for each
-         allocation cache to host info and debug files. If memory
-         cgroup is enabled, each cache can have per memory cgroup
-         caches. SLUB can create the same sysfs directories for these
-         caches under /sys/kernel/slab/CACHE/cgroup but it can lead
-         to a very high number of debug files being created. This is
-         controlled by slub_memcg_sysfs boot parameter and this
-         config option determines the parameter's default value.
-
 config COMPAT_BRK
        bool "Disable heap randomization"
        default y
@@ -2261,25 +2264,9 @@ config MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
 
          If unsure, say N.
 
-config UNUSED_SYMBOLS
-       bool "Enable unused/obsolete exported symbols"
-       default y if X86
-       help
-         Unused but exported symbols make the kernel needlessly bigger.  For
-         that reason most of these unused exports will soon be removed.  This
-         option is provided temporarily to provide a transition period in case
-         some external kernel module needs one of these symbols anyway. If you
-         encounter such a case in your module, consider if you are actually
-         using the right API.  (rationale: since nobody in the kernel is using
-         this in a module, there is a pretty good chance it's actually the
-         wrong interface to use).  If you really need the symbol, please send a
-         mail to the linux kernel mailing list mentioning the symbol and why
-         you really need it, and what the merge plan to the mainline kernel for
-         your module is.
-
 config TRIM_UNUSED_KSYMS
-       bool "Trim unused exported kernel symbols"
-       depends on !UNUSED_SYMBOLS
+       bool "Trim unused exported kernel symbols" if EXPERT
+       depends on !COMPILE_TEST
        help
          The kernel and some modules make many symbols available for
          other modules to use via EXPORT_SYMBOL() and variants. Depending