summaryrefslogtreecommitdiffstats
path: root/lib/Kconfig
Commit message (Collapse)AuthorAgeFilesLines
* ARM: mmu64: allow to disable null pointer trap on zero pageMichael Tretter2020-10-221-0/+3
| | | | | | | | | | | | | | | | | | Barebox uses the zero page to trap NULL pointer dereferences. However, if the SDRAM starts at address 0x0, this makes the first page of the SDRAM inaccessible and makes it impossible to load images to offset 0x0 in the SDRAM. Trapping NULL pointer dereferences on such systems is still desirable. Therefore, add a function to disable the traps if accessing the zero page is necessary and to re-enable the traps after the access is done. The zero_page_memcpy function simplifies copying to the SDRAM, because this is the most common required functionality, but memtest also accesses the zero page and does not use memcpy. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/misc' into masterSascha Hauer2020-10-141-1/+1
|\
| * lib: ratp: rename now undefined use of a Kconfig symbolAhmad Fatoum2020-10-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | The symbol used to exist, but was renamed in 6f37d9efd91 ("commands: Move /dev/mem driver to drivers/misc") and then one instance without definition was added back in cae5e14224f4 ("ratp: add more build dependencies"). Fix it. Fixes: cae5e14224f4 ("ratp: add more build dependencies") Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | lib: kasan: migrate Kconfig option to Debugging menuAhmad Fatoum2020-09-291-2/+0
|/ | | | | | | | UBSAN and ASAN as well as other debugging aids are all in the Debugging menu. Relocate KASAN to be there as well. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add KASan supportSascha Hauer2020-09-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | KernelAddressSANitizer (KASAN) is a dynamic memory error detector. It provides a fast and comprehensive solution for finding use-after-free and out-of-bounds bugs. This adds support for KASan to barebox. It is basically a stripped down version taken from the Linux Kernel as of v5.9-rc1. Quoting the initial Linux commit 0b24becc810d ("kasan: add kernel address sanitizer infrastructure") describes what KASan does: | KASAN uses compile-time instrumentation for checking every memory access, | therefore GCC > v4.9.2 required. v4.9.2 almost works, but has issues with | putting symbol aliases into the wrong section, which breaks kasan | instrumentation of globals. | | Basic idea: | | The main idea of KASAN is to use shadow memory to record whether each byte | of memory is safe to access or not, and use compiler's instrumentation to | check the shadow memory on each memory access. | | Address sanitizer uses 1/8 of the memory addressable in kernel for shadow | memory and uses direct mapping with a scale and offset to translate a | memory address to its corresponding shadow address. | | For every 8 bytes there is one corresponding byte of shadow memory. | The following encoding used for each shadow byte: 0 means that all 8 bytes | of the corresponding memory region are valid for access; k (1 <= k <= 7) | means that the first k bytes are valid for access, and other (8 - k) bytes | are not; Any negative value indicates that the entire 8-bytes are | inaccessible. Different negative values used to distinguish between | different kinds of inaccessible memory (redzones, freed memory) (see | mm/kasan/kasan.h). | | To be able to detect accesses to bad memory we need a special compiler. | Such compiler inserts a specific function calls (__asan_load*(addr), | __asan_store*(addr)) before each memory access of size 1, 2, 4, 8 or 16. | | These functions check whether memory region is valid to access or not by | checking corresponding shadow memory. If access is not valid an error | printed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add constructor supportSascha Hauer2020-09-181-0/+3
| | | | | | | Call constructors (gcc-generated initcall-like functions) during barebox start. Constructors are e.g. used for kasan initialization. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/kconfig'Sascha Hauer2020-05-141-0/+3
|\
| * lib: bch: define referenced but undefined Kconfig optionAhmad Fatoum2020-04-291-0/+3
| | | | | | | | | | | | | | | | BCH_CONST_PARAMS is used, but undefined. Defining it would change MACH_MIOA701 behavior, so define it but remove the select Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | drivers: add COMPILE_TEST prompts for some off-by-default optionsAhmad Fatoum2020-05-081-1/+1
|/ | | | | | | | | | | Some Kconfig options we have are promptless and off-by-default and instead can only be enabled by being selected from platform options. For some of those that aren't compile testable, add a new COMPILE_TEST-only prompt. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ratp: add more build dependenciesLucas Stach2019-12-021-0/+5
| | | | | Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/qemu'Sascha Hauer2019-09-121-0/+3
|\
| * Compile libfdt for bareboxSascha Hauer2019-08-191-0/+3
| | | | | | | | | | | | | | | | | | libfdt can be useful for very early device tree parsing, so compile it for barobox aswell. This is done the same way as done in the Kernel: we put C files with the same name as in libfdt into lib/ and just include the libfdt files from there. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | lib: add HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig optionAhmad Fatoum2019-08-301-0/+3
| | | | | | | | | | | | | | | | | | | | The LZO, LZ4, DEFLATE implementations in lib/ already check against CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS. Define this symbol defaulting to 0. This makes porting Kconfig symbols depending on it easier and in future, we could select it from different arches. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Kconfig: create Kconfig symbol for ARCH_HAS_DATA_ABORT_MASKAhmad Fatoum2019-08-301-0/+3
| | | | | | | | | | | | | | | | Other arch-specific features are exposed in Kconfig too, so do here likewise. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Kconfig: create Kconfig symbol for ARCH_HAS_STACK_DUMPAhmad Fatoum2019-08-301-0/+3
|/ | | | | | | | Other arch-specific features are exposed in Kconfig too, so do here likewise. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: select BASE64 if BLOBGEN is selectedRouven Czerwinski2019-05-241-0/+1
| | | | | | | | Blobgen requires the BASE64 libraries, select them to provide them if BLOBGEN is selected. Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: add blobgen frameworkSteffen Trumtrar2019-04-121-0/+3
| | | | | | | | | | | This adds a framework for en/decrypting data blobs. Some SoCs have support for hardware crypto engines that can en/decrypt using keys that a tied to the SoC and are visible for the crypto hardware only. With this patch it's possible to encrypt confidential data using these keys and to decrypt it later for usage. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: add base64 helpersSteffen Trumtrar2019-04-121-0/+3
| | | | | | | Import the busybox-1.23.1 uuencode/base64 helper functions. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/misc'Sascha Hauer2019-04-091-5/+5
|\
| * treewide: surround Kconfig file paths with double quotesMasahiro Yamada2019-03-211-5/+5
| | | | | | | | | | | | | | | | | | Based on Linux commit 8636a1f9677db4f883f29a072f401303acfc2edd This will be needed when you sync Kconfig with Linux 5.0 or later. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Add Freescale QUICC Engine firmware supportSascha Hauer2019-03-131-0/+4
|/ | | | | | | The Freescale QUICC Engine found on Layerscape SoCs needs firmware loaded. This adds support for loading such a firmware. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/spd'Sascha Hauer2019-03-071-2/+2
|\
| * crc: import crc_itu_t() from kernelSascha Hauer2019-03-041-2/+2
| | | | | | | | | | | | | | | | Our cyc_crc16() function is the same function as crc_itu_t() in the Linux kernel. Import and use crc_itu_t() from the Kernel for consistency. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | lib: Port basic Linux kernel NLS functionsAndrey Smirnov2019-02-221-0/+3
|/ | | | | | | | | Port basic Linux kernel NLS functions: utf8_to_utf32() and utf8s_to_utf16s() in order to support porting kernel code that uses them. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add generic implementation for muldi3Martin Hofmann2019-01-071-0/+3
| | | | | | | | | | | | | | Since version v2018.08.0 some shared copies of gcc routines got added to barebox so that archs don't need to have their own copy inside their lib. The arch I am working on atm also needs support for muldi3 which is not present as a generic version right now. This patch adds the generic version from latest linux v4.20 to barebox and lets the archs select it in their Kconfig so they don't need to provide it themself. Signed-off-by: Martin Hofmann <martin.hofmann_at_mni.thm.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: Port CRC8 implementation from Linux kernelAndrey Smirnov2018-11-061-0/+7
| | | | | Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: Add shared copies of some GCC library routinesAntony Pavlov2018-06-291-0/+9
| | | | | | | | | | | | | | | | | | | This commit is based on these linux kernel commits: | commit b35cd9884fa5d81c9d5e7f57c9d03264ae2bd835 | Author: Palmer Dabbelt <palmer@dabbelt.com> | Date: Tue May 23 10:28:26 2017 -0700 | | lib: Add shared copies of some GCC library routines | | commit e3d5980568fdf83c15a5a3c8ddca1590551ab7a2 | Author: Matt Redfearn <matt.redfearn@mips.com> | Date: Wed Apr 11 08:50:17 2018 +0100 | | lib: Rename compiler intrinsic selects to GENERIC_LIB_* Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: Port CRC-CCITT functions from Linux kernelAndrey Smirnov2018-04-031-0/+8
| | | | | | | | Port CRC-CCITT implemenation in order to support porting MFD driver for RAVE SP. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ratp: allow building without full console supportAleksander Morgado2018-03-011-1/+1
| | | | | | | | | | | | | Make CONFIG_RATP a selectable config option, so that the user can enable RATP support without explicitly needing to enable the full console support over RATP (e.g. only for RATP FS or built-in command support). The full console can still be explicitly enabled with CONFIG_CONSOLE_RATP. Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: Add zstd decompression modulePhilipp Zabel2018-02-051-0/+5
| | | | | | | Based on kernel commit 73f3d1b48f50 ("lib: Add zstd modules"). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: Add xxhash modulePhilipp Zabel2018-02-051-0/+3
| | | | | | | Based on kernel commit 5d2405227a9e ("lib: Add xxhash module"). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add support for fastboot sparse imagesSascha Hauer2018-01-171-0/+3
| | | | | | | | This adds support for reading Android fastboot sparse images. This code is based on the corresponding U-Boot code, but has been heavily modified to provide a read-like API which better fits into barebox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: random: add get_crypto_bytes interface and use HWRNG if posssibleOleksij Rempel2017-03-301-0/+9
| | | | | | | | | For crypto applications we need to use some thing else as PRNG. So provide get_crypto_bytes() and use HWRNG as main source. PRNG is allowed as fallback if user decided to configure it so. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: xz: add support for bcj filtersYegor Yefremov2017-02-231-0/+24
| | | | | | | | | Add missing configuration options for various bcj filters. Without these options the lib/xz/xz_dec_bcj.c file will be compiled, but all filters will be disabled. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: Add Kconfig symbol for FNMATCHSascha Hauer2016-07-251-0/+3
| | | | | | | fnmatch is useful on its own, so make a separate Kconfig symbol and select it from GLOB. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* remove now unused libmtdSascha Hauer2016-04-061-3/+0
| | | | | | | The only user of libmtd was ubiformat which now uses the mtd-peb API, so remove the now unused libmtd. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/ratp'Sascha Hauer2016-02-081-0/+8
|\
| * Add Reliable Asynchronous Transfer ProtocolSascha Hauer2016-01-181-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for Reliable Asynchronous Transfer Protocol (RATP) as described in RFC916. Communication over RS232 is often unreliable as characters are lost or misinterpreted. This protocol allows for a reliable packet based communication over serial lines. The implementation simply follows the state machine described in the RFC text with one exception. RFC916 uses a plain checksum for the transferred data. We decided to use CRC16 for greater robustness. Since this is the only RFC916 implementation we currently know of interoperability with other implementations should not matter. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Andrey Smirnov <andrew.smirnov@gmail.com>
* | lib: Import reed solomon code from kernelMarkus Pargmann2015-12-101-0/+3
|/ | | | | | | | reed solomon code is used by RAMOOPS to check and fix data stored in volatile memory. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/logo'Sascha Hauer2015-08-061-0/+2
|\
| * Add new barebox logo to the treeSascha Hauer2015-07-201-0/+2
| | | | | | | | | | | | | | | | This adds the new barebox logo to the tree. This is added as svg image which is converted to different png images during build time. The logo can be found under /logo/barebox-logo-<width>.png in the running barebox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | import lib/fonts framework from linux kernelAntony Pavlov2015-07-161-0/+2
|/ | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* xymodem: select CRC16 from libJan Weitzel2014-11-121-0/+1
| | | | | Signed-off-by: Jan Weitzel <j.weitzel@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add xz decompression supportSascha Hauer2014-11-041-0/+4
| | | | | | | | This adds xz decompression support from the kernel. Both compressing the barebox binary with xz and decompressing xz files on the commandline is supported. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* vsprintf: Support pU for printing UUIDsSascha Hauer2014-07-111-0/+3
| | | | | | | | With EFI 16byte UUIDs/GUIDs are common. Add support for printing them. This needs to be selected via Kconfig since most architectures have no use for this functionality. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/mtd'Sascha Hauer2013-08-051-0/+3
|\
| * ARM: MXS: introduce stmp device supportSascha Hauer2013-07-231-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | MXS specific devices have some common infrastructure in the kernel known as STMP devices. We have the same in barebox, but with a mxs_ prefix instead of a stmp_ prefix. As some STMP devices are also found on i.MX6 move the common infrastructure out of MXS specific files and use the stmp_ prefix. This is done in preparation for i.MX6 NAND support. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | lib: Add support for LZ4-compressed kernelKyungsik Lee2013-07-161-0/+4
|/ | | | | | | | | | | | This patch adds support for extracting LZ4-compressed kernel images, as well as LZ4-compressed ramdisk images in the kernel boot process. This depends on the patch below decompressor: Add LZ4 decompressor module Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* of: remove unused libfdtSascha Hauer2013-03-061-3/+0
| | | | | | | Now that we are completely independent of libfdt remove the unused code. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* of: move OFTREE Kconfig option to drivers/of/Sascha Hauer2013-03-061-4/+0
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-05 06:39:08 +0000