kernel/linux.git/arch/sh/boot, branch v6.6.132

sh: Do not use hyphen in exported variable name

2025-08-15T10:08:56+00:00

[ Upstream commit c32969d0362a790fbc6117e0b6a737a7e510b843 ] arch/sh/Makefile defines and exports ld-bfd to be used by arch/sh/boot/compressed/Makefile and arch/sh/boot/romimage/Makefile. However some shells, including dash, will not pass through environment variables whose name includes a hyphen. Usually GNU make does not use a shell to recurse, but if e.g. $(srctree) contains '~' it will use a shell here. Other instances of this problem were previously fixed by commits 2bfbe7881ee0 "kbuild: Do not use hyphen in exported variable name" and 82977af93a0d "sh: rename suffix-y to suffix_y". Rename the variable to ld_bfd. References: https://buildd.debian.org/status/fetch.php?pkg=linux&arch=sh4&ver=4.13%7Erc5-1%7Eexp1&stamp=1502943967&raw=0 Fixes: 7b022d07a0fd ("sh: Tidy up the ldscript output format specifier.") Signed-off-by: Ben Hutchings Reviewed-by: John Paul Adrian Glaubitz Signed-off-by: John Paul Adrian Glaubitz Signed-off-by: Sasha Levin

sh: Use generic GCC library routines

2023-04-25T07:16:47+00:00

The C implementations of __ashldi3(), __ashrdi3__(), and __lshrdi3() in arch/sh/lib/ are identical to the generic C implementations in lib/. Reduce duplication by switching SH to the generic versions. Update the include path in arch/sh/boot/compressed accordingly. Signed-off-by: Geert Uytterhoeven Acked-by: Palmer Dabbelt Reviewed-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/74dbe68dc8e2ffb6180092f73723fe21ab692c7a.1679566500.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz

kbuild: clean up stale file removal

2023-01-22T14:43:32+00:00

More than one year has passed since the copied *.[cS] files were removed from arch/*/boot/compressed/. Signed-off-by: Masahiro Yamada

mmc: sh_mmcif: move platform_data header to proper location

2022-04-26T12:05:21+00:00

We have a dedicated directory for platform_data meanwhile, don't spoil the MMC directory with it. Reviewed-by: Geert Uytterhoeven Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20220412093102.3428-1-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson

arch: decompressor: remove useless vmlinux.bin.all-y

2022-01-13T17:55:44+00:00

Presumably, arch/{parisc,s390,sh}/boot/compressed/Makefile copied arch/x86/boot/compressed/Makefile, but vmlinux.bin.all-y is useless here because it is the same as $(obj)/vmlinux.bin. Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier

kbuild: rename cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}

2022-01-13T17:54:05+00:00

GZIP-compressed files end with 4 byte data that represents the size of the original input. The decompressors (the self-extracting kernel) exploit it to know the vmlinux size beforehand. To mimic the GZIP's trailer, Kbuild provides cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}. Unfortunately these macros are used everywhere despite the appended size data is only useful for the decompressors. There is no guarantee that such hand-crafted trailers are safely ignored. In fact, the kernel refuses compressed initramdfs with the garbage data. That is why usr/Makefile overrides size_append to make it no-op. To limit the use of such broken compressed files, this commit renames the existing macros as follows: cmd_bzip2 --> cmd_bzip2_with_size cmd_lzma --> cmd_lzma_with_size cmd_lzo --> cmd_lzo_with_size cmd_lz4 --> cmd_lz4_with_size cmd_xzkern --> cmd_xzkern_with_size cmd_zstd22 --> cmd_zstd22_with_size To keep the decompressors working, I updated the following Makefiles accordingly: arch/arm/boot/compressed/Makefile arch/h8300/boot/compressed/Makefile arch/mips/boot/compressed/Makefile arch/parisc/boot/compressed/Makefile arch/s390/boot/compressed/Makefile arch/sh/boot/compressed/Makefile arch/x86/boot/compressed/Makefile I reused the current macro names for the normal usecases; they produce the compressed data in the proper format. I did not touch the following: arch/arc/boot/Makefile arch/arm64/boot/Makefile arch/csky/boot/Makefile arch/mips/boot/Makefile arch/riscv/boot/Makefile arch/sh/boot/Makefile kernel/Makefile This means those Makefiles will stop appending the size data. I dropped the 'override size_append' hack from usr/Makefile. Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier

sh: rename suffix-y to suffix_y

2022-01-13T17:50:29+00:00

'export suffix-y' does not work reliably because hyphens are disallowed in shell variables. A similar issue was fixed by commit 2bfbe7881ee0 ("kbuild: Do not use hyphen in exported variable name"). If I do similar in dash, ARCH=sh fails to build. $ mv linux linux~ $ cd linux~ $ dash $ make O=foo/bar ARCH=sh CROSS_COMPILE=sh4-linux-gnu- defconfig all make[1]: Entering directory '/home/masahiro/linux~/foo/bar' [ snip ] make[4]: *** No rule to make target 'arch/sh/boot/compressed/vmlinux.bin.', needed by 'arch/sh/boot/compressed/piggy.o'. Stop. make[3]: *** [/home/masahiro/linux~/arch/sh/boot/Makefile:40: arch/sh/boot/compressed/vmlinux] Error 2 make[2]: *** [/home/masahiro/linux~/arch/sh/Makefile:194: zImage] Error 2 make[1]: *** [/home/masahiro/linux~/Makefile:350: __build_one_by_one] Error 2 make[1]: Leaving directory '/home/masahiro/linux~/foo/bar' make: *** [Makefile:219: __sub-make] Error 2 The maintainer of GNU Make stated that there is no consistent way to export variables that do not meet the shell's naming criteria. (https://savannah.gnu.org/bugs/?55719) Consequently, you cannot use hyphens in exported variables. Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier

kbuild: do not quote string values in include/config/auto.conf

2022-01-08T09:03:57+00:00

The previous commit fixed up all shell scripts to not include include/config/auto.conf. Now that include/config/auto.conf is only included by Makefiles, we can change it into a more Make-friendly form. Previously, Kconfig output string values enclosed with double-quotes (both in the .config and include/config/auto.conf): CONFIG_X="foo bar" Unlike shell, Make handles double-quotes (and single-quotes as well) verbatim. We must rip them off when used. There are some patterns: [1] $(patsubst "%",%,$(CONFIG_X)) [2] $(CONFIG_X:"%"=%) [3] $(subst ",,$(CONFIG_X)) [4] $(shell echo $(CONFIG_X)) These are not only ugly, but also fragile. [1] and [2] do not work if the value contains spaces, like CONFIG_X=" foo bar " [3] does not work correctly if the value contains double-quotes like CONFIG_X="foo\"bar" [4] seems to work better, but has a cost of forking a process. Anyway, quoted strings were always PITA for our Makefiles. This commit changes Kconfig to stop quoting in include/config/auto.conf. These are the string type symbols referenced in Makefiles or scripts: ACPI_CUSTOM_DSDT_FILE ARC_BUILTIN_DTB_NAME ARC_TUNE_MCPU BUILTIN_DTB_SOURCE CC_IMPLICIT_FALLTHROUGH CC_VERSION_TEXT CFG80211_EXTRA_REGDB_KEYDIR EXTRA_FIRMWARE EXTRA_FIRMWARE_DIR EXTRA_TARGETS H8300_BUILTIN_DTB INITRAMFS_SOURCE LOCALVERSION MODULE_SIG_HASH MODULE_SIG_KEY NDS32_BUILTIN_DTB NIOS2_DTB_SOURCE OPENRISC_BUILTIN_DTB SOC_CANAAN_K210_DTB_SOURCE SYSTEM_BLACKLIST_HASH_LIST SYSTEM_REVOCATION_KEYS SYSTEM_TRUSTED_KEYS TARGET_CPU UNUSED_KSYMS_WHITELIST XILINX_MICROBLAZE0_FAMILY XILINX_MICROBLAZE0_HW_VER XTENSA_VARIANT_NAME I checked them one by one, and fixed up the code where necessary. Signed-off-by: Masahiro Yamada

Merge tag 'sh-for-5.16' of git://git.libc.org/linux-sh

2021-11-14T19:37:49+00:00

Pull arch/sh updates from Rich Felker. * tag 'sh-for-5.16' of git://git.libc.org/linux-sh: sh: pgtable-3level: Fix cast to pointer from integer of different size sh: fix READ/WRITE redefinition warnings sh: define __BIG_ENDIAN for math-emu sh: math-emu: drop unused functions sh: fix kconfig unmet dependency warning for FRAME_POINTER sh: Cleanup about SPARSE_IRQ sh: kdump: add some attribute to function maple: fix wrong return value of maple_bus_init(). sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/ sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y sh: boards: Fix the cacography in irq.c sh: check return code of request_irq sh: fix trivial misannotations

Merge tag 'tty-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2021-11-04T16:09:37+00:00

Pull tty / serial driver updates from Greg KH: "Here is the big set of tty and serial driver updates for 5.16-rc1. Nothing major in here at all, just lots of tiny serial and tty driver updates for various reported things, and some good cleanups. These include: - more good tty api cleanups from Jiri - stm32 serial driver updates - softlockup fix for non-preempt systems under high serial load - rpmsg serial driver update - 8250 drivers updates and fixes - n_gsm line discipline fixes and updates as people are finally starting to use it. All of these have been in linux-next for a while now with no reported issues" * tag 'tty-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (86 commits) tty: Fix extra "not" in TTY_DRIVER_REAL_RAW description serial: cpm_uart: Protect udbg definitions by CONFIG_SERIAL_CPM_CONSOLE tty: rpmsg: Define tty name via constant string literal tty: rpmsg: Add pr_fmt() to prefix messages tty: rpmsg: Use dev_err_probe() in ->probe() tty: rpmsg: Unify variable used to keep an error code tty: rpmsg: Assign returned id to a local variable serial: stm32: push DMA RX data before suspending serial: stm32: terminate / restart DMA transfer at suspend / resume serial: stm32: rework RX dma initialization and release serial: 8250_pci: Remove empty stub pci_quatech_exit() serial: 8250_pci: Replace custom pci_match_id() implementation serial: xilinx_uartps: Fix race condition causing stuck TX serial: sunzilog: Mark sunzilog_putchar() __maybe_unused Revert "tty: hvc: pass DMA capable memory to put_chars()" Revert "virtio-console: remove unnecessary kmemdup()" serial: 8250_pci: Replace dev_*() by pci_*() macros serial: 8250_pci: Get rid of redundant 'else' keyword serial: 8250_pci: Refactor the loop in pci_ite887x_init() tty: add rpmsg driver ...