Your message dated Sat, 27 Nov 2021 21:26:21 +0100 with message-id <20211127202621.p2bhc56ywlljou35@flow> and subject line Re: Bug#996419: gcc-11: Fails to compile the linux kernel on ARM has caused the Debian Bug report #996419, regarding gcc-11: Fails to compile the linux kernel on ARM. to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 996419: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=996419 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
--- Begin Message ---Package: gcc-11 Version: 11.2.0-9 Severity: important The linux kernel has the following in its ARM Makefile: $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) This means the switch "-march=armv7-a" is tested if supported by the compiler and if so it is used, otherwise it uses the alternative "-march=armv5t -Wa,-march=armv7-a". On gcc-10 it evaluated to "-march=armv7-a". On gcc-11 it evaluates to "-march=armv5t -Wa,-march=armv7-a" leading to compile errors: | cccHPwDp.s:4372: Error: selected processor does not support `cpsid i' in ARM mode | cccHPwDp.s:5145: Error: selected processor does not support `cpsid i' in ARM mode | cccHPwDp.s:5393: Error: selected processor does not support `cpsie i' in ARM mode | cccHPwDp.s:5530: Error: selected processor does not support `dsb ' in ARM mode | cccHPwDp.s:6088: Error: selected processor does not support `cpsie i' in ARM mode | cccHPwDp.s:7132: Error: architectural extension `mp' is not allowed for the current base architecture | cccHPwDp.s:7133: Error: selected processor does not support `pldw [r4]' in ARM mode | cccHPwDp.s:7136: Error: selected processor does not support `pld [r4]' in ARM mode | cccHPwDp.s:7148: Error: selected processor does not support `ldrex r3,[r4]' in ARM mode | cccHPwDp.s:7150: Error: selected processor does not support `strex r1,r2,[r4]' in ARM mode This has been noticed in the gcc-11-arm-linux-gnueabihf package and verified on a armhf porter box with the native gcc-11 package. The test fails due to: | $ arm-linux-gnueabihf-gcc-10 -o a.o a.c -march=armv7-a | $ arm-linux-gnueabihf-gcc-11 -o a.o a.c -march=armv7-a | cc1: error: ‘-mfloat-abi=hard’: selected architecture lacks an FPU Passing early -msoft-float to the compiler test solves the problem. This option is passed later to the compile process. Is this change intended? Sebastian
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--- Begin Message ---On 2021-10-19 11:19:19 [+0200], Matthias Klose wrote: > > CCing Richard. I've been told that the --with-fpu configure option is > deprecated > now, therefore changing the way this is configured. Arnd's patch for the Linux kernel was merged and backported into the stable kernels. We good now, I'm closing this bug. > Matthias Sebastian
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