[Bug 1939379] Re: ARM kernel builds fail with GCC 11
This may very well be the issue. Thanks for the reply, dann. I'm running a test build using -Wa,-march... to check if the build succeeds now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
Here's some discussion from over a decade ago on the topic https://gcc.gnu.org/pipermail/gcc-patches/2009-May/262656.html (spoiler: it doesn't really go anywhere) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
FWIW I fixed a similar issue in supertuxkart recently by patching the .S file to have a ".fpu vfp" directive in it -- although probably ".arch armv7-a+fp" would have been more appropriate. It does seem strange that "gcc -march foo bar.s" does not pass -march to the assembler but I have no real idea if that expectation is grounded in reality -- when compiling C, the value of march is passed to the assembler via a directive so maybe "march" is really only an argument to gcc when gcc is doing the compiling and not when it is being used as a frontend to the assembler. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
hm.. yeah, I can reproduce:
dannf@xps13:/tmp/php8.1-8.1.0~rc4$ arm-linux-gnueabihf-gcc -IZend/asm/
"-I/tmp/php8.1-8.1.0~rc4/Zend/asm/" "-I/tmp/php8.1-8.1.0~rc4/ext-build/include"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/main" "-I/tmp/php8.1-8.1.0~rc4"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/ext/date/lib"
"-I/tmp/php8.1-8.1.0~rc4/ext/date/lib" -I/usr/include/libxml2
-I/usr/include/arm-linux-gnueabihf -I/usr/include/enchant-2
-I/usr/include/glib-2.0 -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include
-I/usr/include/c-client "-I/tmp/php8.1-8.1.0~rc4/ext/mbstring/libmbfl"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/ext/mbstring/libmbfl"
"-I/tmp/php8.1-8.1.0~rc4/ext/mbstring/libmbfl/mbfl"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/ext/mbstring/libmbfl/mbfl"
-I/usr/include/postgresql -I/usr/include/pspell -I/usr/include/editline
-I/usr/include/tidy "-I/tmp/php8.1-8.1.0~rc4/ext-build/TSRM"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/Zend" "-I/tmp/php8.1-8.1.0~rc4/main"
"-I/tmp/php8.1-8.1.0~rc4/Zend" "-I/tmp/php8.1-8.1.0~rc4/TSRM"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/" -Wdate-time -D_FORTIFY_SOURCE=2
-fno-common -Wstrict-prototypes -Wformat-truncation -Wlogical-op
-Wduplicated-cond -Wno-clobbered -Wall -Wextra -Wno-strict-aliasing
-Wno-unused-parameter -Wno-sign-compare -g -O2
"-ffile-prefix-map=/tmp/php8.1-8.1.0~rc4=." -fstack-protector-strong -Wformat
-Werror=format-security -O2 -Wall -pedantic -fsigned-char -fno-strict-aliasing
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -march=armv7-a+fp -g
-fvisibility=hidden -Wimplicit-fallthrough=1 -DZEND_SIGNALS -c
"/tmp/php8.1-8.1.0~rc4/Zend/asm/jump_arm_aapcs_elf_gas.S" -MMD -MF
Zend/asm/jump_arm_aapcs_elf_gas.dep -MT Zend/asm/jump_arm_aapcs_elf_gas.lo
-fPIC -DPIC -o Zend/asm/.libs/jump_arm_aapcs_elf_gas.o
jump_arm_aapcs_elf_gas.S: Assembler messages:
jump_arm_aapcs_elf_gas.S:57: Error: selected processor does not support `vstmia
sp,{d8-d15}' in ARM mode
jump_arm_aapcs_elf_gas.S:68: Error: selected processor does not support `vldmia
sp,{d8-d15}' in ARM mode
Is it perhaps because the -march arg isn't be passed to the assembler? If I add
-Wa,-march=armv7-a+fp:
dannf@xps13:/tmp/php8.1-8.1.0~rc4$ arm-linux-gnueabihf-gcc -IZend/asm/
"-I/tmp/php8.1-8.1.0~rc4/Zend/asm/" "-I/tmp/php8.1-8.1.0~rc4/ext-build/include"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/main" "-I/tmp/php8.1-8.1.0~rc4"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/ext/date/lib"
"-I/tmp/php8.1-8.1.0~rc4/ext/date/lib" -I/usr/include/libxml2
-I/usr/include/arm-linux-gnueabihf -I/usr/include/enchant-2
-I/usr/include/glib-2.0 -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include
-I/usr/include/c-client "-I/tmp/php8.1-8.1.0~rc4/ext/mbstring/libmbfl"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/ext/mbstring/libmbfl"
"-I/tmp/php8.1-8.1.0~rc4/ext/mbstring/libmbfl/mbfl"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/ext/mbstring/libmbfl/mbfl"
-I/usr/include/postgresql -I/usr/include/pspell -I/usr/include/editline
-I/usr/include/tidy "-I/tmp/php8.1-8.1.0~rc4/ext-build/TSRM"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/Zend" "-I/tmp/php8.1-8.1.0~rc4/main"
"-I/tmp/php8.1-8.1.0~rc4/Zend" "-I/tmp/php8.1-8.1.0~rc4/TSRM"
"-I/tmp/php8.1-8.1.0~rc4/ext-build/" -Wdate-time -D_FORTIFY_SOURCE=2
-fno-common -Wstrict-prototypes -Wformat-truncation -Wlogical-op
-Wduplicated-cond -Wno-clobbered -Wall -Wextra -Wno-strict-aliasing
-Wno-unused-parameter -Wno-sign-compare -g -O2
"-ffile-prefix-map=/tmp/php8.1-8.1.0~rc4=." -fstack-protector-strong -Wformat
-Werror=format-security -O2 -Wall -pedantic -fsigned-char -fno-strict-aliasing
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -march=armv7-a+fp -g
-fvisibility=hidden -Wimplicit-fallthrough=1 -DZEND_SIGNALS -c
"/tmp/php8.1-8.1.0~rc4/Zend/asm/jump_arm_aapcs_elf_gas.S" -MMD -MF
Zend/asm/jump_arm_aapcs_elf_gas.dep -MT Zend/asm/jump_arm_aapcs_elf_gas.lo
-fPIC -DPIC -o Zend/asm/.libs/jump_arm_aapcs_elf_gas.o -Wa,-march=armv7-a+fp;
echo $?
0
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Title:
ARM kernel builds fail with GCC 11
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[Bug 1939379] Re: ARM kernel builds fail with GCC 11
php-swoole on armhf impish is also affected: https://launchpad.net/~ondrej/+archive/ubuntu/php/+build/22393235 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
On Wednesday, November 10 2021, Matthias Klose wrote:
> $ arm-linux-gnueabihf-gcc-11 -march=armv7-a+fp -c -x c /dev/null ; echo $?
> 0
>
> that works, contrary what is mentioned in comment #14
I don't understand your statement here. I never claimed that gcc-11
"doesn't work". I never claimed that using -march=armv7-a+fp "never
works". I claimed that using this flag to build php8.1 doesn't seem to
work.
You can look at the build logs here:
https://launchpad.net/~sergiodj/+archive/ubuntu/php8.1-armhf/+packages
https://launchpadlibrarian.net/568231957/buildlog_ubuntu-jammy-armhf.php8.1_8.1.0~rc4-1ubuntu3~ppa1_BUILDING.txt.gz
This is the debdiff used in the PPA above:
https://launchpadlibrarian.net/568229387/php8.1_8.1.0~rc4-1ubuntu2_8.1.0~rc4-1ubuntu3~ppa1.diff.gz
diff -Nru php8.1-8.1.0~rc4/debian/rules php8.1-8.1.0~rc4/debian/rules
--- php8.1-8.1.0~rc4/debian/rules 2021-10-22 23:59:56.0 +
+++ php8.1-8.1.0~rc4/debian/rules 2021-11-10 17:49:57.0 +
@@ -146,7 +146,7 @@
endif
ifeq (arm-linux-gnueabihf,$(DEB_HOST_GNU_TYPE))
- DEB_CFLAGS_MAINT_APPEND += -mfpu=vfpv3-d16
+ DEB_CFLAGS_MAINT_APPEND += -march=armv7-a+fp
endif
# Enable producing of debugging information
The error we have is this:
jump_arm_aapcs_elf_gas.S: Assembler messages:
jump_arm_aapcs_elf_gas.S:57: Error: selected processor does not support `vstmia
sp,{d8-d15}' in ARM mode
jump_arm_aapcs_elf_gas.S:68: Error: selected processor does not support `vldmia
sp,{d8-d15}' in ARM mode
Note that using "-mfpu=vfpv3-d16" does work, and is what php8.1 uses
right now in order to properly build in Ubuntu.
--
Sergio
GPG key ID: E92F D0B3 6B14 F1F4 D8E0 EB2F 106D A1C8 C3CB BF14
** Changed in: php8.1 (Ubuntu)
Status: Incomplete => New
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Title:
ARM kernel builds fail with GCC 11
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[Bug 1939379] Re: ARM kernel builds fail with GCC 11
** Changed in: php8.1 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
$ arm-linux-gnueabihf-gcc-11 -march=armv7-a+fp -c -x c /dev/null ; echo $? 0 that works, contrary what is mentioned in comment #14 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
I've added php8.1 as a task because this bug is affecting the package as well. FWIW, I wasn't able to workaround this problem by just using -march=armv7-a+fp, even though I agree it should have worked. I had to actually pass -mfpu=vfpv3-d16 (no need to pass -march). Either way, I just wanted to let you folks know that this is affecting other packages too. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
** Also affects: php8.1 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
@juerg From your autopkgtest result: Building module: cleaning build area... make -j4 KERNELRELEASE=5.13.0-1006-raspi -C /lib/modules/5.13.0-1006-raspi/build M=/var/lib/dkms/adv-17v35x/5.0.6.0-1/build cleaning build area... DKMS: build completed. Building module: cleaning build area... make -j4 KERNELRELEASE=5.13.0-14-generic -C /lib/modules/5.13.0-14-generic/build M=/var/lib/dkms/adv-17v35x/5.0.6.0-1/build(bad exit status: 2) Error! Bad return status for module build on kernel: 5.13.0-14-generic (armv7l) Because the toolchain fix was only applied in the linux-raspi flavour so far , and not generic. I.e. gcc-11 did not migrate, and "UBUNTU: SAUCE: arm: Fix instruction set selection for GCC 11" is not in generic kernel, yet. so it is expected that dkms builds for generic kernel fail on armhf with gcc-11 from impish-release. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
> $ arm-linux-gnueabihf-gcc-11 -march=armv7-a -c -x c /dev/null > cc1: error: ‘-mfloat-abi=hard’: selected architecture lacks an FPU you have to use -march=armv7-a+fp for now on. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
this log shows: make: Entering directory '/usr/src/linux-headers-5.13.0-14-generic' CC [M] /var/lib/dkms/adv-17v35x/5.0.6.0-1/build/adv17v35x.o please could you provide a verbose build, show the exact invocation of the compiler? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
We're also seeing dkms build failures on armhf due to this: https://autopkgtest.ubuntu.com/results/autopkgtest- impish/impish/armhf/a/adv-17v35x/20210825_233224_cd9ac@/log.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
Juerg, that fun is from bug 1939973 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1939379] Re: ARM kernel builds fail with GCC 11
On Fri, Aug 13, 2021 at 7:35 AM Juerg Haefliger <1939...@bugs.launchpad.net> wrote: > > I wonder if this is related but cpio on impish arm64 seems broken. I wouldn't think so - this change should only impact armhf. -dann -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
I wonder if this is related but cpio on impish arm64 seems broken. All my kernel builds on impish fail when cpio is invoked. In a hirsute arm64 chroot: (hirsute-arm64)ubuntu@seidel:~$ find foo/ -print | cpio -pd --preserve-modification-time $(pwd)/00112233445566778899 22511 blocks (hirsute-arm64)ubuntu@seidel:~$ pull-lp-debs cpio impish Found cpio 2.13+dfsg-4ubuntu1 in impish Downloading cpio_2.13+dfsg-4ubuntu1_arm64.deb from ports.ubuntu.com (0.078 MiB) Downloading cpio-win32_2.13+dfsg-4ubuntu1_all.deb from launchpadlibrarian.net (0.077 MiB) $ sudo dpkg -i cpio_2.13+dfsg-4ubuntu1_arm64.deb (Reading database ... 15849 files and directories currently installed.) Preparing to unpack cpio_2.13+dfsg-4ubuntu1_arm64.deb ... Unpacking cpio (2.13+dfsg-4ubuntu1) over (2.13+dfsg-4) ... Setting up cpio (2.13+dfsg-4ubuntu1) ... (hirsute-arm64)ubuntu@seidel:~$ rm -rf 00112233445566778899/ (hirsute-arm64)ubuntu@seidel:~$ find foo/ -print | cpio -pd --preserve-modification-time $(pwd)/00112233445566778899 cpio: e: Cannot stat: No such file or directory cpio: oe/autoload.sh: Cannot stat: No such file or directory cpio: e-analyzer/Makefile: Cannot stat: No such file or directory cpio: i/mvm/Makefile: Cannot stat: No such file or directory cpio: ile: Cannot stat: No such file or directory cpio: /Kconfig: Cannot stat: No such file or directory cpio: stmem: Cannot stat: No such file or directory cpio: blank line ignored cpio: blank line ignored cpio: h: Cannot stat: No such file or directory cpio: e-build.sh: Cannot stat: No such file or directory cpio: /forwarding/ip6gre_inner_v4_multipath.sh: Cannot stat: No such file or directory cpio: ers/net/mlxsw/router_scale.sh: Cannot stat: No such file or directory 22470 blocks That's exactly the type of error I'm seeing when trying to build a kernel in an impish chroot. cpio seems to choke on the long directory name: (hirsute-arm64)ubuntu@seidel:~$ rm -rf 00112233445566778899/ (hirsute-arm64)ubuntu@seidel:~$ find foo/ -print | cpio -pd --preserve-modification-time $(pwd)/0011223344 22511 blocks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
yes, that's what is supposed to do, but apparently it's not doing that. Now configured with --with-fpu=vfpv3-d16 again, which lets the boost build at least succeed again. Still need to figure out if we need to re-upload packages built after the gcc-defaults change and before the gcc fix. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
Interesting - here's what I see in the boost1.74 log:
"g++" -x assembler-with-cpp -fPIC -pthread -O3 -finline-functions
-Wno-inline -Wall -g -fvisibility=hidden -Wdate-time -D_FORTIFY_SOURCE=2
-DBOOST_ALL_NO_LIB=1 -DBOOST_CONTEXT_DYN_LINK=1 -DBOOST_CONTEXT_SOURCE
-DBOOST_DISABLE_ASSERTS -DNDEBUG -I"." -c -o
"bin.v2/libs/context/build/gcc-11/release/debug-symbols-on/threading-
multi/visibility-hidden/asm/jump_arm_aapcs_elf_gas.o"
"libs/context/src/asm/jump_arm_aapcs_elf_gas.S"
jump_arm_aapcs_elf_gas.S: Assembler messages:
jump_arm_aapcs_elf_gas.S:57: Error: selected processor does not support `vstmia
sp,{d8-d15}' in ARM mode
jump_arm_aapcs_elf_gas.S:68: Error: selected processor does not support `vldmia
sp,{d8-d15}' in ARM mode
It's not messing with -march, so seems like g++ should default to having
an FPU?
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ARM kernel builds fail with GCC 11
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[Bug 1939379] Re: ARM kernel builds fail with GCC 11
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: gcc-11 (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
Oh, I've seen this in some other packages too (boost1.74 was one I think). Do we need to change dpkg to have different default CFLAGS or something? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
Yeah, I think what's going on is that - due to the above change - gcc-11 no longer enables an FPU independently of the selected arch. The FPU is only enabled because the default -march is armv7-a+fp. The kernel build is overriding GCC's (new) built-in default march to one that does not have "+fp", so no flags remain to enable the FPU. edk2 does something similar, and changing it's forced -march from armv7-a to armv7-a+fp works for me. ** Also affects: gcc-11 (Ubuntu) Importance: Undecided Status: New ** Changed in: gcc-defaults (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1939379] Re: ARM kernel builds fail with GCC 11
I wonder if this is due to: gcc-11 (11.1.0-2) experimental; urgency=medium [...] * For armhf configure --with-arch=+fp, dropping the --with-fpu= option. [...] FWIW, I'm seeing something similar w/ edk2. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939379 Title: ARM kernel builds fail with GCC 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-defaults/+bug/1939379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
