On 8/12/26 23:08, John David Anglin wrote:
On 2026-08-12 3:45 p.m., Michael Tokarev wrote:
At the moment, I would say hppa is not compatible with -fwhole-program. The
simplest fix might be to add "_attribute__((used, externally_visible))" to the
memcpy
declaration in your code.
And this one helps to finish the build, and it finishes successfully.
Excellent!
This what google said about this:
[...]
I see. It's a fun stuff.
So, for the time being, I'm including this workaround. For the future, I
guess something has to be done with the build system to avoid -fwhole-program
(Cc'ing Helge Deller).
When I get a chance, I will look at making memcpy and millicode calls
externally visible.
It would be useful to know what code results in the call to memcpy. This seems
a bug in
gcc's -fwhole-program support.
Avoiding millicode calls is likely tricky as they are used for integer
multiplication
and division.
They are ok, even in SeaBIOS.
I'm not sure why -mdisable-fpregs option is used. This will make integer
multiplication
slower. All machines of interest have floating-point hardware.
We are not saving the FP regs when entering the SeaBIOS firmware. That's why I
want
to avoid FP regs.
Helge
