Buildresult: linus/arm64-allmodconfig/arm64-gcc5 built on Dec 29 2020, 00:06

kisskb

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Status:	OK
Date/Time:	Dec 29 2020, 00:06
Duration:	0:13:59.378430
Builder:	ka4
Revision:	arm64: make _TIF_WORK_MASK bits contiguous (`870d16757ba8918c3f8cac162b9ca7669556dbab)`
Target:	linus/arm64-allmodconfig/arm64-gcc5
Branch:	linus
Compiler:	arm64-gcc5 (aarch64-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.25.1)
Config:	allmodconfig (download)
Log:	Download original Possible warnings (3) samples/seccomp/user-trap.c:50:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] samples/seccomp/user-trap.c:83:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] lib/bitfield_kunit.c:93:1: warning: the frame size of 7440 bytes is larger than 2048 bytes [-Wframe-larger-than=] Full Log # git rev-parse -q --verify 870d16757ba8918c3f8cac162b9ca7669556dbab^{commit} 870d16757ba8918c3f8cac162b9ca7669556dbab already have revision, skipping fetch # git checkout -q -f -B kisskb 870d16757ba8918c3f8cac162b9ca7669556dbab # git clean -qxdf # < git log -1 # commit 870d16757ba8918c3f8cac162b9ca7669556dbab # Author: Mark Rutland <mark.rutland@arm.com> # Date: Wed Dec 16 21:32:48 2020 +0000 # # arm64: make _TIF_WORK_MASK bits contiguous # # We need the bits of _TIF_WORK_MASK to be contiguous in order to to use # this as an immediate argument to an AND instruction in entry.S. # # We happened to change these bits in commits: # # b5a5a01d8e9a ("arm64: uaccess: remove addr_limit_user_check()") # 192caabd4dd9 ("arm64: add support for TIF_NOTIFY_SIGNAL") # # which each worked in isolation, but the merge resolution in commit: # # 005b2a9dc819 ("Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block") # # happened to make the bits non-contiguous. # # Fix this by moving TIF_NOTIFY_SIGNAL to be bit 6, which is contiguous # with the rest of _TIF_WORK_MASK. # # Otherwise, we'll get a build-time failure as below: # # arch/arm64/kernel/entry.S: Assembler messages: # arch/arm64/kernel/entry.S:733: Error: immediate out of range at operand 3 -- `and x2,x19,#((1<<1)\|(1<<0)\|(1<<2)\|(1<<3)\|(1<<4)\|(1<<5)\|(1<<7))' # scripts/Makefile.build:360: recipe for target 'arch/arm64/kernel/entry.o' failed # # Fixes: 005b2a9dc819a126 ("Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block") # Signed-off-by: Mark Rutland <mark.rutland@arm.com> # Cc: Catalin Marinas <catalin.marinas@arm.com> # Cc: Will Deacon <will@kernel.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 870d16757ba8918c3f8cac162b9ca7669556dbab # < make -s -j 120 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- allmodconfig # < make -s -j 120 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- help # make -s -j 120 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- olddefconfig # make -s -j 120 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum arch/arm64/Makefile:33: LSE atomics not supported by binutils /kisskb/src/samples/seccomp/user-trap.c: In function 'send_fd': /kisskb/src/samples/seccomp/user-trap.c:50:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] ((int )CMSG_DATA(cmsg)) = fd; ^ /kisskb/src/samples/seccomp/user-trap.c: In function 'recv_fd': /kisskb/src/samples/seccomp/user-trap.c:83:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] return ((int )CMSG_DATA(cmsg)); ^ /kisskb/src/lib/bitfield_kunit.c: In function 'test_bitfields_constants': /kisskb/src/lib/bitfield_kunit.c:93:1: warning: the frame size of 7440 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ Completed OK # rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4 # Build took: 0:13:59.378430

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