Leonid Gasheev via Xenomai via Xenomai <xenomai@xenomai.org> writes:
> 03.06.2022 10:01, Philippe Gerum пишет:
>> Leonid Gasheev via Xenomai via Xenomai <xenomai@xenomai.org> writes:
>>
>>> 02.06.2022 18:44, Leonid Gasheev via Xenomai пишет:
>>>> A series of patches extracted from v5.18-evl-rebase has been applied
>>>> to the kernel version v5.18.1
>>>> toolchain/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin
>>>> Build for the arm64 architecture is completed successfully.
>>>> But for arm:
>>>> arch/arm/kernel/irq.c: In function ‘handle_arch_irq_pipelined’:
>>>> arch/arm/kernel/irq.c:167:19: warning: cast between incompatible
>>>> function types from ‘int (*)(struct pt_regs *)’ to ‘void (*)(void
>>>> *)’ [-Wcast-function-type]
>>>> call_with_stack((void (*)(void *))handle_irq_pipelined, regs,
>>>> ^
>>>> arch/arm/kernel/entry-armv.S: Assembler messages:
>>>> arch/arm/kernel/entry-armv.S:496: Error: instruction not allowed in
>>>> IT block -- `tst r0,r0'
>>>> arch/arm/kernel/entry-armv.S:785: Error: instruction not allowed in
>>>> IT block -- `tst r1,#0x0001'
>>>> make[2]: *** [scripts/Makefile.build:389:
>>>> arch/arm/kernel/entry-armv.o] Error 1
>>>
>>> A similar situation with the 5.15.43 kernel.
>>> The build for the arm fails:
>>>
>>> arch/arm/kernel/entry-armv.S: Assembler messages:
>>> arch/arm/kernel/entry-armv.S:470: Error: instruction not allowed in IT
>>> block -- `tst r0,r0'
>>> arch/arm/kernel/entry-armv.S:760: Error: instruction not allowed in IT
>>> block -- `tst r1,#0x0001'
>>> make[2]: *** [scripts/Makefile.build:390:
>>> arch/arm/kernel/entry-armv.o] Error 1
>>> make[1]: *** [scripts/Makefile.build:551: arch/arm/kernel] Error 2
>>> make[1]: *** Waiting for unfinished jobs....
>>> make: *** [Makefile:1870: arch/arm] Error 2
>>> make: *** Waiting for unfinished jobs....
>>> kernel/audit_tree.c:33:9: error: redefinition of ‘struct node’
>>> struct node {
>>> ^~~~
>>> In file included from ./include/linux/cpu.h:17,
>>> from ./arch/arm/include/asm/cpu.h:11,
>>> from ./arch/arm/include/asm/smp_plat.h:12,
>>> from ./arch/arm/include/asm/irq_work.h:5,
>>> from ./include/linux/irq_work.h:56,
>>> from ./include/linux/irq.h:19,
>>> from ./include/asm-generic/hardirq.h:17,
>>> from ./arch/arm/include/asm/hardirq.h:10,
>>> from ./include/linux/hardirq.h:12,
>>> from ./include/linux/highmem.h:10,
>>> from ./include/linux/bvec.h:10,
>>> from ./include/linux/skbuff.h:17,
>>> from kernel/audit.h:14,
>>> from kernel/audit_tree.c:2:
>>> ./include/linux/node.h:84:8: note: originally defined here
>>> struct node {
>>> ^~~~
>>> make[1]: *** [scripts/Makefile.build:288: kernel/audit_tree.o] Error 1
>>>
>>>
>>> Any thoughts. I am grateful in advance.
>> v5.15.44/arm builds fine here, so this could be a toolchain
>> issue. The
>> oldest toolchain I tested with is:
>> arm-linux-gnueabihf-gcc (Linaro GCC 7.5-2019.12) 7.5.0
>>
> Good afternoon.
> I found the problem, but it seems strange to me.
> If the CONFIG_THUMB2_KERNEL=y parameter is in the kernel
> configuration, I get an error:
> arch/arm/kernel/entry-armv.S: Assembler messages:
> arch/arm/kernel/entry-armv.S:496: Error: instruction not allowed in IT
> block -- `tst r0,r0'
> arch/arm/kernel/entry-armv.S:785: Error: instruction not allowed in IT
> block -- `tst r1,#0x0001'
>
> If the CONFIG_THUMB2_KERNEL parameter is not set, then compilation is
> successful.
>
> I looked at the history of my work with this architecture. The last
> time it was the 5.1 kernel, and there is no such error in my records.
> Unfortunately I can't fix it. I know assembly code very poorly.
>
> P.S. test board: bananapi-m3, cpu a83t, allwinner
Ok, confirmed. I can reproduce this now building for a nanopi. I'll have
a look asap and follow up.
--
Philippe.
