kernel.git/arch/m68k/Makefile, branch linux-5.4.y

kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables

2020-09-03T09:27:10Z

commit e4a42c82e943b97ce124539fcd7a47445b43fa0d upstream. Redefine GZIP, BZIP2, LZOP variables as KGZIP, KBZIP2, KLZOP resp. GZIP, BZIP2, LZOP env variables are reserved by the tools. The original attempt to redefine them internally doesn't work in makefiles/scripts intercall scenarios, e.g., "make GZIP=gzip bindeb-pkg" and results in broken builds. There can be other broken build commands because of this, so the universal solution is to use non-reserved env variables for the compression tools. Fixes: 8dfb61dcbace ("kbuild: add variables for compression tools") Signed-off-by: Denis Efremov Tested-by: Guenter Roeck Signed-off-by: Masahiro Yamada Cc: Matthias Maennich Signed-off-by: Greg Kroah-Hartman

kbuild: add variables for compression tools

2020-09-03T09:27:10Z

commit 8dfb61dcbaceb19a5ded5e9c9dcf8d05acc32294 upstream. Allow user to use alternative implementations of compression tools, such as pigz, pbzip2, pxz. For example, multi-threaded tools to speed up the build: $ make GZIP=pigz BZIP2=pbzip2 Variables _GZIP, _BZIP2, _LZOP are used internally because original env vars are reserved by the tools. The use of GZIP in gzip tool is obsolete since 2015. However, alternative implementations (e.g., pigz) still rely on it. BZIP2, BZIP, LZOP vars are not obsolescent. The credit goes to @grsecurity. As a sidenote, for multi-threaded lzma, xz compression one can use: $ export XZ_OPT="--threads=0" Signed-off-by: Denis Efremov Signed-off-by: Masahiro Yamada Signed-off-by: Matthias Maennich Signed-off-by: Greg Kroah-Hartman

kbuild: rebuild modules when module linker scripts are updated

2019-08-21T12:05:21Z

Currently, the timestamp of module linker scripts are not checked. Add them to the dependency of modules so they are correctly rebuilt. Signed-off-by: Masahiro Yamada

m68k: Add -ffreestanding to CFLAGS

2019-01-21T09:36:53Z

This patch fixes a build failure when using GCC 8.1: /usr/bin/ld: block/partitions/ldm.o: in function `ldm_parse_tocblock': block/partitions/ldm.c:153: undefined reference to `strcmp' This is caused by a new optimization which effectively replaces a strncmp() call with a strcmp() call. This affects a number of strncmp() call sites in the kernel. The entire class of optimizations is avoided with -fno-builtin, which gets enabled by -ffreestanding. This may avoid possible future build failures in case new optimizations appear in future compilers. I haven't done any performance measurements with this patch but I did count the function calls in a defconfig build. For example, there are now 23 more sprintf() calls and 39 fewer strcpy() calls. The effect on the other libc functions is smaller. If this harms performance we can tackle that regression by optimizing the call sites, ideally using semantic patches. That way, clang and ICC builds might benfit too. Cc: stable@vger.kernel.org Reference: https://marc.info/?l=linux-m68k&m=154514816222244&w=2 Signed-off-by: Finn Thain Signed-off-by: Geert Uytterhoeven

m68k: Generate uapi header and syscall table header files

2018-12-04T08:47:55Z

System call table generation script must be run to gener- ate unistd_32.h and syscall_table.h files. This patch will have changes which will invokes the script. This patch will generate unistd_32.h and syscall_table.h files by the syscall table generation script invoked by m68k/Makefile and the generated files against the removed files must be identical. The generated uapi header file will be included in uapi/- asm/unistd.h and generated system call table header file will be included by kernel/syscalltable.S file. Signed-off-by: Firoz Khan Signed-off-by: Geert Uytterhoeven

kbuild: rename LDFLAGS to KBUILD_LDFLAGS

2018-08-23T23:22:08Z

Commit a0f97e06a43c ("kbuild: enable 'make CFLAGS=...' to add additional options to CC") renamed CFLAGS to KBUILD_CFLAGS. Commit 222d394d30e7 ("kbuild: enable 'make AFLAGS=...' to add additional options to AS") renamed AFLAGS to KBUILD_AFLAGS. Commit 06c5040cdb13 ("kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP") renamed CPPFLAGS to KBUILD_CPPFLAGS. For some reason, LDFLAGS was not renamed. Using a well-known variable like LDFLAGS may result in accidental override of the variable. Kbuild generally uses KBUILD_ prefixed variables for the internally appended options, so here is one more conversion to sanitize the naming convention. I did not touch Makefiles under tools/ since the tools build system is a different world. Signed-off-by: Masahiro Yamada Acked-by: Kirill A. Shutemov Reviewed-by: Palmer Dabbelt

m68knommu: remove obsolete 68360 support

2016-03-07T00:07:17Z

Remove the obsolete Motorola/Freescale 68360 SoC support. It has been bit rotting for many years with little active use in mainlne. There has been no serial driver support for many years, so it is largely not useful in its current state. Signed-off-by: Greg Ungerer

m68k: move non-mmu 68360 platform code

2014-09-28T23:18:35Z

The non-mmu 68360 specific code is inconsistently placed under a directory named "platform". Move it to arch/m68k/ along with the other platform and board directories. Signed-off-by: Greg Ungerer Acked-by: Geert Uytterhoeven

m68k: move non-mmu 68000 platform code

2014-09-28T23:18:35Z

The non-mmu 68000 specific code is inconsistently placed under a directory named "platform". Move it to arch/m68k/ along with the other platform and machine directories. Signed-off-by: Greg Ungerer Acked-by: Geert Uytterhoeven

m68k: move coldfire platform code

2014-09-28T23:18:34Z

Move the m68k ColdFire platform support code directory to be with the existing m68k platforms. Although the ColdFire is not a platform as such, we have always kept all its support together. No reason to change that as this time. Signed-off-by: Greg Ungerer Acked-by: Geert Uytterhoeven