4.21 build failure

[Andreas Schwab]

On Feb 19 2018, Eugene Syromiatnikov <esyr at redhat.com> wrote:

> On Mon, Feb 19, 2018 at 07:31:57PM +0100, Andreas Schwab wrote:
>> On Feb 19 2018, Eugene Syromiatnikov <esyr at redhat.com> wrote:
>> 
>> > On Thu, Feb 15, 2018 at 12:39:15AM +0100, Andreas Schwab wrote:
>> >> 4.21 fails to build for aarch64:
>> >> 
>> >> checking gnu/stubs-32.h usability... no
>> >> checking gnu/stubs-32.h presence... no
>> >> checking for gnu/stubs-32.h... no
>> >> configure: Created empty gnu/stubs-32.h
>> >> checking for m32 personality compile support... no
>> >> checking whether to enable m32 personality support... no
>> >> configure: error: Cannot enable m32 personality support
>> >
>> > As noted in NEWS, strace now enforces mpers support by default (in order
>> > to make aware of the possibilty of incorrect non-native personality
>> > decoding early); looks like your compiler doesn't support producing
>> > binaries for the compat personality.  You can either try to use another
>> > compiler or provide --disable-mpers to the configure script.
>> 
>> There is no such thing as -m32 on aarch64 or riscv64.  There is only
>> -mabi=ilp32 or -mabi=ilp32d.
>
> Are you aware of any differences between ARMv7 EABI and AArch32 ABI?

How is that relevant?  This is about aarch64 and riscv64.

> Thank you for the information regarding RISC-V.  Do you have an idea where one
> can easily get an environment with both 32-bit and 64-bit runtime for it, by
> chance?

There is no riscv32 ABI defined yet.

Andreas.

-- 
Andreas Schwab, schwab at linux-m68k.org
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