Quelle Kconfig.binfmt Sprache: unbekannt

# SPDX-License-Identifier: GPL-2.0-only

menu "Executable file formats"

config BINFMT_ELF
bool "Kernel support for ELF binaries"
depends on MMU
select ELFCORE
default y
help
   ELF (Executable and Linkable Format) is a format for libraries and
   executables used across different architectures and operating
   systems. Saying Y here will enable your kernel to run ELF binaries
   and enlarge it by about 13 KB. ELF support under Linux has now all
   but replaced the traditional Linux a.out formats (QMAGIC and ZMAGIC)
   because it is portable (this does *not* mean that you will be able
   to run executables from different architectures or operating systems
   however) and makes building run-time libraries very easy. Many new
   executables are distributed solely in ELF format. You definitely
   want to say Y here.

   Information about ELF is contained in the ELF HOWTO available from
   <http://www.tldp.org/docs.html#howto>.

   If you find that after upgrading from Linux kernel 1.2 and saying Y
   here, you still can't run any ELF binaries (they just crash), then
   you'll have to install the newest ELF runtime libraries, including
   ld.so (check the file <file:Documentation/Changes> for location and
   latest version).

config BINFMT_ELF_KUNIT_TEST
bool "Build KUnit tests for ELF binary support" if !KUNIT_ALL_TESTS
depends on KUNIT=y && BINFMT_ELF=y
default KUNIT_ALL_TESTS
help
   This builds the ELF loader KUnit tests, which try to gather
   prior bug fixes into a regression test collection. This is really
   only needed for debugging. Note that with CONFIG_COMPAT=y, the
   compat_binfmt_elf KUnit test is also created.

config COMPAT_BINFMT_ELF
def_bool y
depends on COMPAT && BINFMT_ELF
select ELFCORE

config ARCH_BINFMT_ELF_STATE
bool

config ARCH_BINFMT_ELF_EXTRA_PHDRS
bool

config ARCH_HAVE_ELF_PROT
bool

config ARCH_USE_GNU_PROPERTY
bool

config BINFMT_ELF_FDPIC
bool "Kernel support for FDPIC ELF binaries"
default y if !BINFMT_ELF
depends on ARM || ((M68K || RISCV || SUPERH || XTENSA) && !MMU)
select ELFCORE
help
   ELF FDPIC binaries are based on ELF, but allow the individual load
   segments of a binary to be located in memory independently of each
   other. This makes this format ideal for use in environments where no
   MMU is available as it still permits text segments to be shared,
   even if data segments are not.

   It is also possible to run FDPIC ELF binaries on MMU linux also.

config ELFCORE
bool
help
   This option enables kernel/elfcore.o.

config CORE_DUMP_DEFAULT_ELF_HEADERS
bool "Write ELF core dumps with partial segments"
default y
depends on BINFMT_ELF && ELF_CORE
help
   ELF core dump files describe each memory mapping of the crashed
   process, and can contain or omit the memory contents of each one.
   The contents of an unmodified text mapping are omitted by default.

   For an unmodified text mapping of an ELF object, including just
   the first page of the file in a core dump makes it possible to
   identify the build ID bits in the file, without paying the i/o
   cost and disk space to dump all the text.  However, versions of
   GDB before 6.7 are confused by ELF core dump files in this format.

   The core dump behavior can be controlled per process using
   the /proc/PID/coredump_filter pseudo-file; this setting is
   inherited.  See Documentation/filesystems/proc.rst for details.

   This config option changes the default setting of coredump_filter
   seen at boot time.  If unsure, say Y.

config BINFMT_SCRIPT
tristate "Kernel support for scripts starting with #!"
default y
help
   Say Y here if you want to execute interpreted scripts starting with
   #! followed by the path to an interpreter.

   You can build this support as a module; however, until that module
   gets loaded, you cannot run scripts.  Thus, if you want to load this
   module from an initramfs, the portion of the initramfs before loading
   this module must consist of compiled binaries only.

   Most systems will not boot if you say M or N here.  If unsure, say Y.

config ARCH_HAS_BINFMT_FLAT
bool

config BINFMT_FLAT
bool "Kernel support for flat binaries"
depends on ARCH_HAS_BINFMT_FLAT
help
   Support uClinux FLAT format binaries.

config BINFMT_FLAT_ARGVP_ENVP_ON_STACK
bool

config BINFMT_FLAT_OLD_ALWAYS_RAM
bool

config BINFMT_FLAT_NO_DATA_START_OFFSET
bool

config BINFMT_FLAT_OLD
bool "Enable support for very old legacy flat binaries"
depends on BINFMT_FLAT
help
   Support decade old uClinux FLAT format binaries.  Unless you know
   you have some of those say N here.

config BINFMT_ZFLAT
bool "Enable ZFLAT support"
depends on BINFMT_FLAT
select ZLIB_INFLATE
help
   Support FLAT format compressed binaries

config BINFMT_MISC
tristate "Kernel support for MISC binaries"
help
   If you say Y here, it will be possible to plug wrapper-driven binary
   formats into the kernel. You will like this especially when you use
   programs that need an interpreter to run like Java, Python, .NET or
   Emacs-Lisp. It's also useful if you often run DOS executables under
   the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO, available from
   <http://www.tldp.org/docs.html#howto>). Once you have
   registered such a binary class with the kernel, you can start one of
   those programs simply by typing in its name at a shell prompt; Linux
   will automatically feed it to the correct interpreter.

   You can do other nice things, too. Read the file
   <file:Documentation/admin-guide/binfmt-misc.rst> to learn how to use this
   feature, <file:Documentation/admin-guide/java.rst> for information about how
   to include Java support. and <file:Documentation/admin-guide/mono.rst> for
          information about how to include Mono-based .NET support.

          To use binfmt_misc, you will need to mount it:
  mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc

   You may say M here for module support and later load the module when
   you have use for it; the module is called binfmt_misc. If you
   don't know what to answer at this point, say Y.

config COREDUMP
bool "Enable core dump support" if EXPERT
default y
help
   This option enables support for performing core dumps. You almost
   certainly want to say Y here. Not necessary on systems that never
   need debugging or only ever run flawless code.

config EXEC_KUNIT_TEST
bool "Build execve tests" if !KUNIT_ALL_TESTS
depends on KUNIT=y
default KUNIT_ALL_TESTS
help
   This builds the exec KUnit tests, which tests boundary conditions
   of various aspects of the exec internals.

endmenu

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