Re: [PATCH] x86_64: generate position independent binaries.

[Janneke Nieuwenhuizen]

Andrius tikonas writes:

Hi Andrius,

Wonderful patch, thank you!

> * lib/x86_64-mes/x86_64.M1: add new M1 defines.
> * module/mescc/x86_64/as.scm: use offsets instead of absolute addresses.
> * module/mescc/M1.scm: add additional matches for #:offset

I nitpicked the commit message a bit

    x86_64: Generate position independent binaries.
    
    The UEFI bootstrap does not provide memory management, so position
    independent code is very helpful there.
    
    * lib/x86_64-mes/x86_64.M1 (lea____$i32(%rip),%rax,
    lea____$i32(%rip),%rdi, lea____$i32(%rip),%r10, mov____%ax,(%r10),
    mov____%eax,(%r10), mov____%rax,(%r10), mov____(%r10),%rax,
    mov____(%r10),%rdi, push___%r10): Add new M1 defines.
    (mov____%rax,0x32, movl___%eax,0x32, movl___%edi,0x32, movw___%ax,0x32,
    movw___%di,0x32 push___$i32): Remove.
    * module/mescc/x86_64/as.scm (x86_64:label->arg, x86_64:label->r,
    x86_64:label-mem->r, x86_64:label-mem-add, x86_64:r->label,
    x86_64:r->byte-label, x86_64:r->word-label, x86_64:r->long-label): : Use
    offsets instead of absolute addresses.
    * module/mescc/M1.scm (info->M1): Add additional matches for #:offset

and added your copyright.

Pushed to `wip' to be released as 0.26.1 as soon as we got the arm/riscv
problems

    https://lists.gnu.org/archive/html/bug-mes/2024-01/msg00008.html

sorted out, as far as I'm concerned.

Greetings,
Janneke

-- 
Janneke Nieuwenhuizen <janneke@gnu.org>  | GNU LilyPond https://LilyPond.org
Freelance IT https://www.JoyOfSource.com | Avatar® https://AvatarAcademy.com