Re: Setting -mcpu=cortex-a53 breaks build in openssl/lib/libcrypto

[Richard Earnshaw <Richard.Earnshaw%eyrie.plus.com@localhost>]

> On 19 May 2019, at 17:11, Michael <macallan%netbsd.org@localhost> wrote:
> 
> Hello,
> 
> On Sun, 19 May 2019 08:40:13 +0100
> Sad Clouds <cryintothebluesky%gmail.com@localhost> wrote:
> 
>>> I think you need -m32 too since -mcpu=cortex-a53 implies a 64bit CPU.
> 
>> I don't think it does imply 64-bit CPU, if your compiler was built to
>> generate 32-bit code, setting -mcpu=cortex-a53 will generate 32-bit code,
>> that's how I build packages from pkgsrc.
>> Anyway, adding COPTS+=-m32 results in a different error
> 
> Huh, odd.
> I had very similar problems on macppc, where adding -mcpu=970 would
> result in 64bit code  ( unlike -mtune=970 which just enables
> 970-specific optimizations but does not change the target CPU ) if not
> explicitly forbidden with -m32, with a toolchain built specifically for
> 32bit CPUs.
> So much for consistency I guess.
> 

Nope.  AArch64 code has a separate port of GCC.

My guess is that the release of the library you are trying to build is faulting the fact that it doesn’t know about architecture releases newer than Arm v7.

R.

> have fun
> Michael