summaryrefslogtreecommitdiffstats
path: root/fs/Kconfig.binfmt
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-23 13:28:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-23 13:28:57 -0700
commit4352b8aee98005853aa63f57d6377282de17a33f (patch)
tree27614d7a9ef05c32d089004e104364ce42324837 /fs/Kconfig.binfmt
downloadlinux-stable-4352b8aee98005853aa63f57d6377282de17a33f.tar.gz
linux-stable-4352b8aee98005853aa63f57d6377282de17a33f.zip
Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted
Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ...
Diffstat (limited to 'fs/Kconfig.binfmt')
-rw-r--r--fs/Kconfig.binfmt210
1 files changed, 210 insertions, 0 deletions
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
new file mode 100644
index 000000000..daeac4889
--- /dev/null
+++ b/fs/Kconfig.binfmt
@@ -0,0 +1,210 @@
+# 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 BINFMT_MISC_BPF
+ bool "BPF-selected interpreters for misc binaries"
+ depends on BINFMT_MISC=y
+ depends on BPF_SYSCALL && BPF_JIT && DEBUG_INFO_BTF
+ help
+ Allow binfmt_misc binary type handlers to be implemented as bpf
+ struct_ops programs. Instead of matching a fixed magic and
+ redirecting to a fixed interpreter recorded at registration time
+ such handlers match binaries programmatically and compute the
+ interpreter to use per binary, e.g. relative to the location of
+ the binary itself.
+
+ If you don't know what to answer at this point, say N.
+
+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.
+
+config ARCH_HAS_ELF_CORE_EFLAGS
+ bool
+ depends on BINFMT_ELF && ELF_CORE
+ default n
+ help
+ Select this option if the architecture makes use of the e_flags
+ field in the ELF header to store ABI or other architecture-specific
+ information that should be preserved in core dumps.
+
+endmenu