Eric Lee / smarc-fsl-linux-kernel

10 Aug, 2020

1 commit

  • faabed295   kbuild: introduce hostprogs-always-y and userprogs-always-y ... Browse Code »

    To build host programs, you need to add the program names to 'hostprogs'
    to use the necessary build rule, but it is not enough to build them
    because there is no dependency.

    There are two types of host programs: built as the prerequisite of
    another (e.g. gen_crc32table in lib/Makefile), or always built when
    Kbuild visits the Makefile (e.g. genksyms in scripts/genksyms/Makefile).

    The latter is typical in Makefiles under scripts/, which contains host
    programs globally used during the kernel build. To build them, you need
    to add them to both 'hostprogs' and 'always-y'.

    This commit adds hostprogs-always-y as a shorthand.

    The same applies to user programs. net/bpfilter/Makefile builds
    bpfilter_umh on demand, hence always-y is unneeded. In contrast,
    programs under samples/ are added to both 'userprogs' and 'always-y'
    so they are always built when Kbuild visits the Makefiles.

    userprogs-always-y works as a shorthand.

    Signed-off-by: Masahiro Yamada
    Acked-by: Miguel Ojeda

    Masahiro Yamada
     

17 May, 2020

1 commit

  • 82d00a939   samples: hidraw: build sample program for target architecture ... Browse Code »

    This userspace program includes UAPI headers exported to usr/include/.
    'make headers' always works for the target architecture (i.e. the same
    architecture as the kernel), so the sample program should be built for
    the target as well. Kbuild now supports 'userprogs' for that.

    I also guarded the CONFIG option by 'depends on CC_CAN_LINK' because
    $(CC) may not provide libc.

    Signed-off-by: Masahiro Yamada
    Acked-by: Sam Ravnborg

    Masahiro Yamada
     

25 Mar, 2020

1 commit

04 Feb, 2020

1 commit

  • 5f2fb52fa   kbuild: rename hostprogs-y/always to hostprogs/always-y ... Browse Code »

    In old days, the "host-progs" syntax was used for specifying host
    programs. It was renamed to the current "hostprogs-y" in 2004.

    It is typically useful in scripts/Makefile because it allows Kbuild to
    selectively compile host programs based on the kernel configuration.

    This commit renames like follows:

    always -> always-y
    hostprogs-y -> hostprogs

    So, scripts/Makefile will look like this:

    always-$(CONFIG_BUILD_BIN2C) += ...
    always-$(CONFIG_KALLSYMS) += ...
    ...
    hostprogs := $(always-y) $(always-m)

    I think this makes more sense because a host program is always a host
    program, irrespective of the kernel configuration. We want to specify
    which ones to compile by CONFIG options, so always-y will be handier.

    The "always", "hostprogs-y", "hostprogs-m" will be kept for backward
    compatibility for a while.

    Signed-off-by: Masahiro Yamada

    Masahiro Yamada
     

21 Nov, 2018

1 commit

18 Nov, 2017

1 commit

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

15 Mar, 2015

1 commit

20 Aug, 2013

1 commit

28 Mar, 2013

1 commit

21 Apr, 2011

1 commit

  • d431b2e33   HID: hid-example: fix some build issues ... Browse Code »

    samples/hid-example.o needs some Kconfig and Makefile additions in order
    to build. It should use headers from the build tree, so use
    HEADERS_CHECK to require that those header files be present.

    Change the kconfig symbol from tristate to bool since userspace cannot be
    built as loadable modules.

    However, I don't understand why the userspace header files are not present
    as reported in Andrew's build log, since it builds OK on x86_64 without
    any of these changes.

    Signed-off-by: Randy Dunlap
    Cc: Alan Ott
    Cc: Jiri Kosina
    Signed-off-by: Andrew Morton
    Signed-off-by: Jiri Kosina

    Randy Dunlap
     

09 Apr, 2011

1 commit

  • cb3e85fe1   HID: hidraw: fix samples miscompilation ... Browse Code »

    On systems where userspace doesn't have new hidraw.h populated to
    /usr/include, the hidraw sample won't compile as it's missing the new
    ioctl defitions.

    Introduce temporary ugly workaround to define the ioctls "manually"
    in such cases, just to avoid miscompilation in allmodconfig cases.

    Reported-by: Stephen Rothwell
    Signed-off-by: Jiri Kosina

    Jiri Kosina
     

22 Mar, 2011

1 commit