Re: First attempt to build qt5-qt-webengine on arm64

[adr <adr%SDF.ORG@localhost>]

On Wed, 26 Oct 2022, adr wrote:
> Hi,
>
> The first problem I found is that
> src/3rdparty/chromium/base/system/sys_info_posix.cc is using uname(3)
> to use the machine member in the utsname structure to get the cpu
> architecture. I'm curious, why isn't a machine_arch member in that
> structure? NetBSD use of evbarm for both arm and aarch64 make this
> situation problematic. Is there other packages using uname(3) that
> have been patched that you could recommend me as a common practice
> os should I just add a conditional block and use sysctl(3)?
>
> Regards,
> adr.

I made some progress. Now I'm stuck in src/3rdparty/chromium/third_party/zlib.

I need to add a test for crc32 and pmull for netbsd in cpu_features.c,
like this one for linux:

[...]
#elif defined(ARMV8_OS_LINUX) && defined(__aarch64__)
    unsigned long features = getauxval(AT_HWCAP);
    arm_cpu_enable_crc32 = !!(features & HWCAP_CRC32);
    arm_cpu_enable_pmull = !!(features & HWCAP_PMULL);
[...]

I don't see anything like getauxval() in netbsd. CRC32 is tested in
cpuinfo(8), but PMULL is not. Could someone point me to a common approach
to do this in pkgsrc, or should I roll my own, a la libcrypto?

Any advice?

Regards,
adr.