x86: compat_binfmt_elf Kconfig

This adds Kconfig and Makefile bits to build fs/compat_binfmt_elf.c,
just added.  Each arch that wants to use this file needs to add a
"select COMPAT_BINFMT_ELF" line in its Kconfig bits that enable COMPAT.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index d4fc609..7c3d5f9 100644 (file)
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -23,6 +23,10 @@ config BINFMT_ELF
          ld.so (check the file <file:Documentation/Changes> for location and
          latest version).
 
+config COMPAT_BINFMT_ELF
+       bool
+       depends on COMPAT && MMU
+
 config BINFMT_ELF_FDPIC
        bool "Kernel support for FDPIC ELF binaries"
        default y

diff --git a/fs/Makefile b/fs/Makefile
index 500cf15..1e7a11b 100644 (file)
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_BINFMT_MISC)     += binfmt_misc.o
 obj-y                          += binfmt_script.o
 
 obj-$(CONFIG_BINFMT_ELF)       += binfmt_elf.o
+obj-$(CONFIG_COMPAT_BINFMT_ELF)        += compat_binfmt_elf.o
 obj-$(CONFIG_BINFMT_ELF_FDPIC) += binfmt_elf_fdpic.o
 obj-$(CONFIG_BINFMT_SOM)       += binfmt_som.o
 obj-$(CONFIG_BINFMT_FLAT)      += binfmt_flat.o