kernel/linux.git/arch/sh/boot, branch v5.15.208

sh: Do not use hyphen in exported variable name

2025-08-28T14:24:11+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: Add missing FORCE prerequisites in Makefile

2021-09-19T01:13:42+00:00

make: arch/sh/boot/Makefile:87: FORCE prerequisite is missing Add the missing FORCE prerequisites for all build targets identified by "make help". Fixes: e1f86d7b4b2a5213 ("kbuild: warn if FORCE is missing for if_changed(_dep,_rule) and filechk") Signed-off-by: Geert Uytterhoeven Signed-off-by: Masahiro Yamada

kbuild: sh: remove unused install script

2021-09-02T23:17:20+00:00

The sh arch has a install.sh script, but no Makefile actually calls it. Remove it to keep anyone from accidentally calling it in the future. Signed-off-by: Greg Kroah-Hartman Reviewed-by: Kees Cook Signed-off-by: Masahiro Yamada

kbuild: introduce ccflags-remove-y and asflags-remove-y

2020-08-09T16:32:59+00:00

CFLAGS_REMOVE_.o filters out flags when compiling a particular object, but there is no convenient way to do that for every object in a directory. Add ccflags-remove-y and asflags-remove-y to make it easily. Use ccflags-remove-y to clean up some Makefiles. The add/remove order works as follows: [1] KBUILD_CFLAGS specifies compiler flags used globally [2] ccflags-y adds compiler flags for all objects in the current Makefile [3] ccflags-remove-y removes compiler flags for all objects in the current Makefile (New feature) [4] CFLAGS_ adds compiler flags per file. [5] CFLAGS_REMOVE_ removes compiler flags per file. Having [3] before [4] allows us to remove flags from most (but not all) objects in the current Makefile. For example, kernel/trace/Makefile removes $(CC_FLAGS_FTRACE) from all objects in the directory, then adds it back to trace_selftest_dynamic.o and CFLAGS_trace_kprobe_selftest.o The same applies to lib/livepatch/Makefile. Please note ccflags-remove-y has no effect to the sub-directories. In contrast, the previous notation got rid of compiler flags also from all the sub-directories. The following are not affected because they have no sub-directories: arch/arm/boot/compressed/ arch/powerpc/xmon/ arch/sh/ kernel/trace/ However, lib/ has several sub-directories. To keep the behavior, I added ccflags-remove-y to all Makefiles in subdirectories of lib/, except the following: lib/vdso/Makefile - Kbuild does not descend into this Makefile lib/raid/test/Makefile - This is not used for the kernel build I think commit 2464a609ded0 ("ftrace: do not trace library functions") excluded too much. In the next commit, I will remove ccflags-remove-y from the sub-directories of lib/. Suggested-by: Sami Tolvanen Signed-off-by: Masahiro Yamada Acked-by: Steven Rostedt (VMware) Acked-by: Michael Ellerman (powerpc) Acked-by: Brendan Higgins (KUnit) Tested-by: Anders Roxell

sh: remove sh5 support

2020-06-01T18:48:52+00:00

sh5 never became a product and has probably never really worked. Remove it by recursively deleting all associated Kconfig options and all corresponding files. Reviewed-by: Geert Uytterhoeven Signed-off-by: Arnd Bergmann Signed-off-by: Rich Felker

arch/sh: vmlinux.scr

2020-06-01T18:48:48+00:00

Since the patch [1], building the kernel using a toolchain built with Binutils 2.33.1 prevent booting a sh4 system under Qemu. Apply the patch provided by Alan Modra [2] that fix alignment of rodata. [1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ebd2263ba9a9124d93bbc0ece63d7e0fae89b40e [2] https://www.sourceware.org/ml/binutils/2019-12/msg00112.html Signed-off-by: Romain Naour Cc: Alan Modra Signed-off-by: Rich Felker

.gitignore: add SPDX License Identifier

2020-03-25T10:50:48+00:00

Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman

fgraph: Fix function type mismatches of ftrace_graph_return using ftrace_stub

2019-11-14T18:13:43+00:00

The C compiler is allowing more checks to make sure that function pointers are assigned to the correct prototype function. Unfortunately, the function graph tracer uses a special name with its assigned ftrace_graph_return function pointer that maps to a stub function used by the function tracer (ftrace_stub). The ftrace_graph_return variable is compared to the ftrace_stub in some archs to know if the function graph tracer is enabled or not. This means we can not just simply create a new function stub that compares it without modifying all the archs. Instead, have the linker script create a function_graph_stub that maps to ftrace_stub, and this way we can define the prototype for it to match the prototype of ftrace_graph_return, and make the compiler checks all happy! Link: http://lkml.kernel.org/r/20191015090055.789a0aed@gandalf.local.home Cc: linux-sh@vger.kernel.org Cc: Yoshinori Sato Cc: Rich Felker Reported-by: Sami Tolvanen Signed-off-by: Steven Rostedt (VMware)

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

sh: exclude vmlinux.scr from .gitignore pattern

2019-05-18T02:29:01+00:00

arch/sh/boot/.gitignore has the pattern "vmlinux*"; this is effective not only for the current directory, but also for any sub-directories. So, from the point of .gitignore grammar, the following check-in files are also considered to be ignored: arch/sh/boot/compressed/vmlinux.scr arch/sh/boot/romimage/vmlinux.scr As the manual gitignore(5) says "Files already tracked by Git are not affected", this is not a problem as far as Git is concerned. However, Git is not the only program that parses .gitignore because .gitignore is useful to distinguish build artifacts from source files. For example, tar(1) supports the --exclude-vcs-ignore option. As of writing, this option does not work perfectly, but it intends to create a tarball excluding files specified by .gitignore. So, I believe it is better to fix this issue. Signed-off-by: Masahiro Yamada