Re: {standard input}:5973: Error: operand out of range (512 is not between -512 and 511)

[Vineet Gupta <Vineet.Gupta1@synopsys.com>]

+CC Ofer

On 8/24/20 2:58 AM, Sebastian Andrzej Siewior wrote:
> On 2020-08-24 10:17:19 [+0800], kernel test robot wrote:
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head:   d012a7190fc1fd72ed48911e77ca97ba4521bccd
>> commit: de8f5e4f2dc1f032b46afda0a78cab5456974f89 lockdep: Introduce wait-type checks
>> date:   5 months ago
>> config: arc-randconfig-r004-20200824 (attached as .config)
>> compiler: arc-elf-gcc (GCC) 9.3.0
>> reproduce (this is a W=1 build):
>>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>         chmod +x ~/bin/make.cross
>>         git checkout de8f5e4f2dc1f032b46afda0a78cab5456974f89
>>         # save the attached .config to linux build tree
>>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 
>>
>> If you fix the issue, kindly add following tag as appropriate
>> Reported-by: kernel test robot <lkp@intel.com>
>>
>> All errors (new ones prefixed by >>):
>>
>>    {standard input}: Assembler messages:
>>>> {standard input}:5973: Error: operand out of range (512 is not between -512 and 511)
>>

The error above was fixed back in April:
799587d5731db9dc ("ARC: [plat-eznps]: Restrict to CONFIG_ISA_ARCOMPACT")

> I have here gcc 10 and the output is:

I suppose this is mainline gcc 10 ? Although it doesn't seem like compiler version
related.


> |  CC      arch/arc/kernel/signal.o
> |arch/arc/include/asm/bitops.h: Assembler messages:
> |arch/arc/include/asm/bitops.h:236: Error: junk at end of line, first unrecognized character is `0'
> |arch/arc/include/asm/bitops.h:236: Error: junk at end of line, first unrecognized character is `0'
> |make[3]: *** [scripts/Makefile.build:283: arch/arc/kernel/signal.o] Error 1
> |make[2]: *** [scripts/Makefile.build:500: arch/arc/kernel] Error 2
> |make[1]: *** [Makefile:1788: arch/arc] Error 2
> 
> the reason is that:
> | #ifndef CONFIG_ARC_PLAT_EZNPS
> | BIT_OPS(set, |, bset)
> | BIT_OPS(clear, & ~, bclr)
> | BIT_OPS(change, ^, bxor)
> | #else
> | BIT_OPS(set, |, CTOP_INST_AOR_DI_R2_R2_R3)
> | BIT_OPS(clear, & ~, CTOP_INST_AAND_DI_R2_R2_R3)
> | BIT_OPS(change, ^, CTOP_INST_AXOR_DI_R2_R2_R3)
> | #endif
> 
> and the config supplied does not accept CTOP_INST_AAND_DI_R2_R2_R3
> (which is
> 	#define CTOP_INST_AAND_DI_R2_R2_R3              0x4A664C04
> )


> and the assembler does not like that.
> After the removal CONFIG_ARC_PLAT_EZNPS I got to stage 2:
> |drivers/irqchip/irq-eznps.c:80:16: error: 'CTOP_AUX_IACK' undeclared (first use in this function)
> |   80 |  write_aux_reg(CTOP_AUX_IACK, 1 << irq);
> 

Indeed this is a problem I can reproduce. Enabling CONFIG_EZNPS_GIC on a non
ARC700 build causes the issue: the ctop header is inside platform code
(arch/arc/plat-eznps/include/plat/ctop.h) which obviously fails if not building
for ARC.

My solution is to move ctop.h to include/soc/nps/plat/.

> so I removed CONFIG_EZNPS_GIC. And then I ended with:
> |  LD      vmlinux.o
> |arc-linux-ld: gcc-10.1.0-nolibc/arc-linux/bin/../lib/gcc/arc-linux/10.1.0/arc700/libgcc.a(_muldi3.o): compiled for a little endian system and target is big endian
> |arc-linux-ld: failed to merge target specific data of file gcc-10.1.0-nolibc/arc-linux/bin/../lib/gcc/arc-linux/10.1.0/arc700/libgcc.a(_muldi3.o)

This is unrelated since original .config with CONFIG_ARC_PLAT_EZNPS would have
selected Big endina build, but you need a BE toolchain to get that working (since
libgcc emulation code still comes from toolchain).

> 
> Please update CI and ARC.

Nothing to update in CI. I'll send the ARC patch as a follow up.


> 
> Sebastian
> 

Thx for reporting.
-Vineet