sys-kernel/gentoo-sources-6.1.135 failed to compile with the error messages: DESCEND objtool CALL scripts/checksyscalls.sh CC arch/x86/ia32/ia32_signal.o CC arch/x86/ia32/audit.o CC arch/x86/realmode/rm/wakemain.o AR arch/x86/platform/atom/built-in.a CC arch/x86/realmode/rm/video-mode.o In file included from ./include/uapi/linux/posix_types.h:5, from ./include/uapi/linux/types.h:14, from ./include/linux/types.h:6, from arch/x86/realmode/rm/wakeup.h:11, from arch/x86/realmode/rm/wakemain.c:2: ./include/linux/stddef.h:11:9: error: cannot use keyword ‘false’ as enumeration constant 11 | false = 0, | ^~~~~ ./include/linux/stddef.h:11:9: note: ‘false’ is a keyword with ‘-std=c23’ onwards ./include/linux/types.h:30:33: error: ‘bool’ cannot be defined via ‘typedef’ 30 | typedef _Bool bool; | ^~~~ ./include/linux/types.h:30:33: note: ‘bool’ is a keyword with ‘-std=c23’ onwards ./include/linux/types.h:30:1: warning: useless type name in empty declaration 30 | typedef _Bool bool; | ^~~~~~~ AR arch/x86/platform/ce4100/built-in.a In file included from ./include/uapi/linux/posix_types.h:5, from ./include/uapi/linux/types.h:14, from ./include/linux/types.h:6, from arch/x86/realmode/rm/../../boot/boot.h:22, from arch/x86/realmode/rm/../../boot/video-mode.c:16, from arch/x86/realmode/rm/video-mode.c:1: ./include/linux/stddef.h:11:9: error: cannot use keyword ‘false’ as enumeration constant 11 | false = 0, | ^~~~~ ./include/linux/stddef.h:11:9: note: ‘false’ is a keyword with ‘-std=c23’ onwards ./include/linux/types.h:30:33: error: ‘bool’ cannot be defined via ‘typedef’ 30 | typedef _Bool bool; | ^~~~ ./include/linux/types.h:30:33: note: ‘bool’ is a keyword with ‘-std=c23’ onwards ./include/linux/types.h:30:1: warning: useless type name in empty declaration 30 | typedef _Bool bool; | ^~~~~~~ make[4]: *** [scripts/Makefile.build:250: arch/x86/realmode/rm/wakemain.o] Error 1 make[4]: *** Waiting for unfinished jobs.... make[4]: *** [scripts/Makefile.build:250: arch/x86/realmode/rm/video-mode.o] Error 1 make[3]: *** [arch/x86/realmode/Makefile:22: arch/x86/realmode/rm/realmode.bin] Error 2 make[2]: *** [scripts/Makefile.build:503: arch/x86/realmode] Error 2 make[2]: *** Waiting for unfinished jobs.... CC arch/x86/platform/efi/memmap.o AR arch/x86/platform/geode/built-in.a CC arch/x86/platform/efi/quirks.o Reproducible: Always Steps to Reproduce: 1. Sync and Update with emerge 2. Try to compile the new kernel Actual Results: Failed to compile Expected Results: Not to fail
Created attachment 926206 [details] emerge -pqv '=sys-kernel/gentoo-sources-6.1.135:6.1.135::gentoo'
Created attachment 926207 [details] emerge --info '=sys-kernel/gentoo-sources-6.1.135:6.1.135::gentoo'
Created attachment 926224 [details] 6.14.4 compile error Issues with 6.14.4 as well, not sure if I should file a separate bug report. Since gcc-15 is treating all warnings as errors, it fails at multiple points with 16 jobs but I was unable to continue further once I reached this point in the compile:
(In reply to John Croteau from comment #3) > Created attachment 926224 [details] > 6.14.4 compile error > > Issues with 6.14.4 as well, not sure if I should file a separate bug report. > Since gcc-15 is treating all warnings as errors, i That's not what is happening -- it's that the kernel defaults to CONFIG_WERROR in a bunch of places (or has in the past, and it gets carried on through people's configs) and this is a new *warning* that ends up promoted to an error because of that.
(In reply to John Croteau from comment #3) > Created attachment 926224 [details] > 6.14.4 compile error > > Issues with 6.14.4 as well, not sure if I should file a separate bug report. > Since gcc-15 is treating all warnings as errors, it fails at multiple points > with 16 jobs but I was unable to continue further once I reached this point > in the compile: But that issue is different from this one indeed. This particular bug is about C23. Your issue is bug 954669.
This happened in: https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/stddef.h?id=6e21828743247270d09a86756a0c11702500dbfb
You probably want this: https://github.com/torvalds/linux/commit/ee2ab467bddfb2d7f68d996dbab94d7b88f8eaf7
Thread in -stable: https://lore.kernel.org/stable/fb4cce81-1e36-4887-a1e0-0cfd1a26693e@googlemail.com/
sys-kernel/gentoo-sources-6.6.88 has the same problem. # make CALL scripts/checksyscalls.sh mkdir -p /usr/src/linux-6.6.88-gentoo/tools/objtool && make O=/usr/src/linux-6.6.88-gentoo subdir=tools/objtool --no-print-directory -C objtool make[4]: 'install_headers' is up to date. CC arch/x86/realmode/rm/wakemain.o In file included from ./include/uapi/linux/posix_types.h:5, from ./include/uapi/linux/types.h:14, from ./include/linux/types.h:6, from arch/x86/realmode/rm/wakeup.h:11, from arch/x86/realmode/rm/wakemain.c:2: ./include/linux/stddef.h:11:9: error: cannot use keyword 'false' as enumeration constant 11 | false = 0, | ^~~~~ ./include/linux/stddef.h:11:9: note: 'false' is a keyword with '-std=c23' onwards ./include/linux/types.h:35:33: error: 'bool' cannot be defined via 'typedef' 35 | typedef _Bool bool; | ^~~~ ./include/linux/types.h:35:33: note: 'bool' is a keyword with '-std=c23' onwards ./include/linux/types.h:35:1: warning: useless type name in empty declaration 35 | typedef _Bool bool; | ^~~~~~~ make[5]: *** [scripts/Makefile.build:243: arch/x86/realmode/rm/wakemain.o] Error 1 make[4]: *** [arch/x86/realmode/Makefile:22: arch/x86/realmode/rm/realmode.bin] Error 2 make[3]: *** [scripts/Makefile.build:480: arch/x86/realmode] Error 2 make[2]: *** [scripts/Makefile.build:480: arch/x86] Error 2 make[1]: *** [/usr/src/linux-6.6.88-gentoo/Makefile:1932: .] Error 2 make: *** [Makefile:234: __sub-make] Error 2 (In reply to Holger Hoffstätte from comment #7) > You probably want this: > https://github.com/torvalds/linux/commit/ee2ab467bddfb2d7f68d996dbab94d7b88f8eaf7 I see that that patch has already been applied, but it's not enough. A workaround is to run `make CC='gcc -std=gnu11'`.
We can do something like https://gitweb.gentoo.org/proj/linux-patches.git/commit/?h=6.12&id=353d9f32e0ba5f71b437ff4c970539e584a58e0b for older branches until it gets fixed properly upstream.
linux-6.1.136-gentoo failed compilation at the same point: In file included from ./include/uapi/linux/posix_types.h:5, from ./include/uapi/linux/types.h:14, from ./include/linux/types.h:6, from arch/x86/realmode/rm/wakeup.h:11, from arch/x86/realmode/rm/wakemain.c:2: ./include/linux/stddef.h:11:9: error: cannot use keyword ‘false’ as enumeration constant 11 | false = 0, | ^~~~~ ./include/linux/stddef.h:11:9: note: ‘false’ is a keyword with ‘-std=c23’ onwards ./include/linux/types.h:30:33: error: ‘bool’ cannot be defined via ‘typedef’ 30 | typedef _Bool bool; | ^~~~ ./include/linux/types.h:30:33: note: ‘bool’ is a keyword with ‘-std=c23’ onwards ./include/linux/types.h:30:1: warning: useless type name in empty declaration 30 | typedef _Bool bool; | ^~~~~~~ make[4]: *** [scripts/Makefile.build:250: arch/x86/realmode/rm/wakemain.o] Error 1 make[4]: *** Waiting for unfinished jobs.... CC fs/proc/loadavg.o CC kernel/irq/dummychip.o make[3]: *** [arch/x86/realmode/Makefile:22: arch/x86/realmode/rm/realmode.bin] Error 2 make[2]: *** [scripts/Makefile.build:503: arch/x86/realmode] Error 2 make[1]: *** [scripts/Makefile.build:503: arch/x86] Error 2 make[1]: *** Waiting for unfinished jobs....
(In reply to email200202 from comment #11) > linux-6.1.136-gentoo failed compilation at the same point: I'm not surprised, nothing's changed here. My earlier comment stands.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=53b213bf12d856457f151af4e8dc3cce01da1051 commit 53b213bf12d856457f151af4e8dc3cce01da1051 Author: Mike Pagano <mpagano@gentoo.org> AuthorDate: 2025-05-05 12:02:57 +0000 Commit: Mike Pagano <mpagano@gentoo.org> CommitDate: 2025-05-05 12:02:57 +0000 sys-kernel/gentoo-sources: add 6.1.137, GCC 15 fix GCC 15 defaults to -std=gnu23. Hack in CSTD_FLAG to pass -std=gnu11 everywhere Bug: https://bugs.gentoo.org/954704 Signed-off-by: Mike Pagano <mpagano@gentoo.org> sys-kernel/gentoo-sources/Manifest | 3 +++ .../gentoo-sources/gentoo-sources-6.1.137.ebuild | 27 ++++++++++++++++++++++ 2 files changed, 30 insertions(+)
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6b077b6aae6250b4b527eb3c2b8dfb8855238fee commit 6b077b6aae6250b4b527eb3c2b8dfb8855238fee Author: Mike Pagano <mpagano@gentoo.org> AuthorDate: 2025-05-09 11:44:24 +0000 Commit: Mike Pagano <mpagano@gentoo.org> CommitDate: 2025-05-09 11:44:24 +0000 sys-kernel/gentoo-sources: add 6.6.90, GCC 15 patch GCC 15 defaults to -std=gnu23. Hack in CSTD_FLAG to pass -std=gnu11 everywhere Bug: https://bugs.gentoo.org/954704 Signed-off-by: Mike Pagano <mpagano@gentoo.org> sys-kernel/gentoo-sources/Manifest | 3 +++ .../gentoo-sources/gentoo-sources-6.6.90.ebuild | 27 ++++++++++++++++++++++ 2 files changed, 30 insertions(+)
