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Filename Latest commit message Latest commit date
Todd Kjos 26399219f0 ANDROID: kernelci build-break for 64-bit riscv clang builds (5.4 only) 
No 64-bit riscv builds were working with clang (found via kernelci) for our 5.4 kernels:

ld.lld: error: arch/riscv/built-in.a(kernel/signal.o):(function do_notify_resume: .text+0x30c): relocation R_RISCV_PCREL_HI20 out of range: 33554406 is not in [-524288, 524287]; references '__vdso_rt_sigreturn'
>>> referenced by signal.c
>>> defined in arch/riscv/built-in.a(kernel/vdso/vdso-syms.o)

There are two ANDROID-specific patches that added global variables that
must be reverted to fix the build:

f06e9ec979 ("BACKPORT: RISC-V: Stop relying on GCC's register allocator's hueristics")
3818981c3332 ("ANDROID: declare sp_in_global outside of CONFIG_FRAME_POINTER")

Also, CONFIG_INIT_STACK_ALL_PATTERN must be disabled to avoid the
relocation issues.

These issues all seem to be fixed in 5.10 and later kernels.

Bug: 393656515
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I0a5395a9767b94ec2291c9ef7e9a69f1f4665730
2025-01-31 16:42:47 -08:00
android ANDROID: GKI: add Trimble symbol list 2025-01-16 06:41:15 -08:00
arch Revert "BACKPORT: RISC-V: Stop relying on GCC's register allocator's hueristics" 2025-01-31 16:42:39 -08:00
block This is the 5.4.288 stable release 2024-12-27 16:16:36 +00:00
certs
crypto Merge 5.4.287 into android11-5.4-lts 2024-12-16 10:50:16 +00:00
Documentation Merge 5.4.287 into android11-5.4-lts 2024-12-16 10:50:16 +00:00
drivers This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
fs This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
include Revert "netfilter: Replace zero-length array with flexible-array member" 2025-01-14 17:17:17 +00:00
init Merge 5.4.287 into android11-5.4-lts 2024-12-16 10:50:16 +00:00
ipc ipc: replace costly bailout check in sysvipc_find_ipc() 2024-09-04 13:15:02 +02:00
kernel This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
lib Merge 5.4.287 into android11-5.4-lts 2024-12-16 10:50:16 +00:00
LICENSES
mm This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
net Revert "netfilter: Replace zero-length array with flexible-array member" 2025-01-14 17:17:17 +00:00
samples Merge 5.4.287 into android11-5.4-lts 2024-12-16 10:50:16 +00:00
scripts This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
security ANDROID: kernelci build-break for 64-bit riscv clang builds (5.4 only) 2025-01-31 16:42:47 -08:00
sound This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
tools Merge 5.4.287 into android11-5.4-lts 2024-12-16 10:50:16 +00:00
usr
virt KVM: arm64: Ignore PMCNTENSET_EL0 while checking for overflow status 2024-12-19 18:05:04 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-11-08 16:20:33 +01:00
.mailmap
build.config.aarch64
build.config.allmodconfig
build.config.allmodconfig.aarch64
build.config.allmodconfig.arm
build.config.allmodconfig.x86_64
build.config.arm
build.config.common
build.config.db845c ANDROID: db845c: Enable device tree overlay support 2024-01-13 10:38:25 +05:30
build.config.gki
build.config.gki-debug.aarch64
build.config.gki-debug.x86_64
build.config.gki.aarch64 ANDROID: GKI: add Trimble symbol list 2025-01-16 06:41:15 -08:00
build.config.gki.x86_64
build.config.gki_kasan
build.config.gki_kasan.aarch64
build.config.gki_kasan.x86_64
build.config.gki_kprobes
build.config.gki_kprobes.aarch64
build.config.gki_kprobes.x86_64
build.config.hikey960
build.config.x86_64
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS This is the 5.4.255 stable release 2023-08-30 16:47:09 +00:00
Makefile This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
OWNERS ANDROID: Use GKI Dr. No OWNERS file 2023-12-04 13:28:17 +00:00
README
README.md

README.md

How do I submit patches to Android Common Kernels

  1. BEST: Make all of your changes to upstream Linux. If appropriate, backport to the stable releases. These patches will be merged automatically in the corresponding common kernels. If the patch is already in upstream Linux, post a backport of the patch that conforms to the patch requirements below.

  2. LESS GOOD: Develop your patches out-of-tree (from an upstream Linux point-of-view). Unless these are fixing an Android-specific bug, these are very unlikely to be accepted unless they have been coordinated with kernel-team@android.com. If you want to proceed, post a patch that conforms to the patch requirements below.

Common Kernel patch requirements

  • All patches must conform to the Linux kernel coding standards and pass script/checkpatch.pl
  • Patches shall not break gki_defconfig or allmodconfig builds for arm, arm64, x86, x86_64 architectures (see https://source.android.com/setup/build/building-kernels)
  • If the patch is not merged from an upstream branch, the subject must be tagged with the type of patch: UPSTREAM:, BACKPORT:, FROMGIT:, FROMLIST:, or ANDROID:.
  • All patches must have a Change-Id: tag (see https://gerrit-review.googlesource.com/Documentation/user-changeid.html)
  • If an Android bug has been assigned, there must be a Bug: tag.
  • All patches must have a Signed-off-by: tag by the author and the submitter

Additional requirements are listed below based on patch type

Requirements for backports from mainline Linux: UPSTREAM:, BACKPORT:

  • If the patch is a cherry-pick from Linux mainline with no changes at all
    • tag the patch subject with UPSTREAM:.
    • add upstream commit information with a (cherry-picked from ...) line
    • Example:
      • if the upstream commit message is
        important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

    - then Joe Smith would upload the patch for the common kernel as

        UPSTREAM: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        (cherry-picked from c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch requires any changes from the upstream version, tag the patch with BACKPORT: instead of UPSTREAM:.
    • use the same tags as UPSTREAM:
    • add comments about the changes under the (cherry-picked from ...) line
    • Example:
        BACKPORT: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        (cherry-picked from c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
        [ Resolved minor conflict in drivers/foo/bar.c ]
        Signed-off-by: Joe Smith <joe.smith@foo.org>

Requirements for other backports: FROMGIT:, FROMLIST:,

  • If the patch has been merged into an upstream maintainer tree, but has not yet been merged into Linux mainline
    • tag the patch subject with FROMGIT:
    • add info on where the patch came from as (cherry picked from commit <sha1> <repo> <branch>). This must be a stable maintainer branch (not rebased, so don't use linux-next for example).
    • if changes were required, use BACKPORT: FROMGIT:
    • Example:
      • if the commit message in the maintainer tree is
        important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

    - then Joe Smith would upload the patch for the common kernel as

        FROMGIT: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        (cherry picked from commit 878a2fd9de10b03d11d2f622250285c7e63deace
         https://git.kernel.org/pub/scm/linux/kernel/git/foo/bar.git test-branch)
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch has been submitted to LKML, but not accepted into any maintainer tree
    • tag the patch subject with FROMLIST:
    • add a Link: tag with a link to the submittal on lore.kernel.org
    • if changes were required, use BACKPORT: FROMLIST:
    • Example:
        FROMLIST: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Link: https://lore.kernel.org/lkml/20190619171517.GA17557@someone.com/
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>

Requirements for Android-specific patches: ANDROID:

  • If the patch is fixing a bug to Android-specific code
    • tag the patch subject with ANDROID:
    • add a Fixes: tag that cites the patch with the bug
    • Example:
        ANDROID: fix android-specific bug in foobar.c

        This is the detailed description of the important fix

        Fixes: 1234abcd2468 ("foobar: add cool feature")
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch is a new feature
    • tag the patch subject with ANDROID:
    • add a Bug: tag with the Android bug (required for android-specific features)