linux-kernel - Re: hppa vDSO and compiler (non-)support

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Date:   Tue, 22 Mar 2022 08:19:37 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Helge Deller <deller@....de>
Cc:     Jiri Slaby <jirislaby@...nel.org>, linux-parisc@...r.kernel.org,
        Linux kernel mailing list <linux-kernel@...r.kernel.org>,
        Martin Liška <mliska@...e.cz>,
        Andreas Schwab <schwab@...ux-m68k.org>
Subject: Re: hppa vDSO and compiler (non-)support

On 3/22/22 07:25, Helge Deller wrote:
> On 3/22/22 14:05, Guenter Roeck wrote:
>> Does that also fix the build problems now seen in mainline ?
> 
> No.
> 
>> Building parisc64:generic-64bit_defconfig ... failed
>> --------------
>> Error log:
>> arch/parisc/kernel/vdso64/Makefile:30: FORCE prerequisite is missing
>> arch/parisc/kernel/vdso32/sigtramp.S: Assembler messages:
>> arch/parisc/kernel/vdso32/sigtramp.S:39: Error: unknown pseudo-op: `.proc'
>> ...
>> arch/parisc/kernel/vdso32/restart_syscall.S:32: Error: .cfi_endproc without corresponding .cfi_startproc
>> make[2]: *** [arch/parisc/kernel/vdso32/Makefile:34: arch/parisc/kernel/vdso32/restart_syscall.o] Error 1
>> make[2]: *** Waiting for unfinished jobs....
>> make[2]: *** [arch/parisc/kernel/vdso32/Makefile:34: arch/parisc/kernel/vdso32/sigtramp.o] Error 1
>> make[1]: *** [arch/parisc/Makefile:177: vdso_prepare] Error 2
>> make: *** [Makefile:219: __sub-make] Error 2
>>
>> This is with hppa64-linux-gcc (GCC) 11.2.0.
> 
> Can you check if you have the 32-bit compiler (hppa-linux-gcc) installed too?
> The errors above happen when building the 32-bit vDSO, for which you need the 32-bit compiler.
> 

Yes, I do, but that doesn't help much if I want to build a 64-bit target such
as generic-64bit_defconfig. Am I missing something ?

Guenter