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It seems I accidentally switched the guard on linux/elf-fdpic.h from #ifdef
__KERNEL__ to #ifndef __KERNEL__ when attempting to expand the guarded region
to cover the elf_fdpic_params struct when doing the UAPI split - with the
result that the struct became unavailable to kernel code.
Move incorrectly guarded bits back to the kernelspace header.
Whilst we're at it, the __KERNEL__ guards can be deleted as they're no longer
necessary.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Fengguang Wu <fengguang.wu@intel.com>
cc: Lars-Peter Clausen <lars@metafoo.de>
cc: uclinux-dev@uclinux.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
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fix the following 'make headers_check' warning:
usr/include/linux/elf-fdpic.h:62: extern's make no sense in userspace
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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The attached patch adds a new binary format driver that allows a special
variety of ELF to be used that permits the dynamic sections that comprise an
executable, its dynamic loader and its shared libaries and its stack and data
to be located anywhere within the address space.
This is used to provide shared libraries and shared executables (at least, as
far as the read-only dynamic sections go) on uClinux. Not only that, but the
same binaries can be run on MMU linux without a problem.
This is achieved by:
(1) Passing loadmaps to the dynamic loader (or to a statically linked
executable) to indicate the whereabouts of the various dynamic sections.
(2) Using a GOT inside the program.
(3) Passing setup_arg_pages() the stack pointer to be.
(4) Allowing the arch greated control over how an executable is laid out in
memory in MMU Linux.
(5) Rewriting mm/nommu.c to support MAP_PRIVATE on files, thus allowing _mmap_
to handle sharing of private-readonly mappings.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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