Florian Weimer, le dim. 04 janv. 2026 21:46:49 +0100, a ecrit:
> * Samuel Thibault:
> 
> > +asm (
> > +"check_redzone:\n"
> > +
> > +"  movabs  $0x3333333333333333, %rax\n"
> > +"  mov     $(128/8), %ecx\n"
> > +"  lea     -128(%rsp), %rdi\n"
> > +"rep       stosq\n"
> > +
> > +"  movl    $1, startflag(%rip)\n"
> > +"wait:\n"
> > +"  cmpl    $0, loopflag(%rip)\n"
> > +"  jne     wait\n"
> > +
> > +"  movabs  $0x3333333333333333, %rax\n"
> > +"  mov     $(128/8), %ecx\n"
> > +"  lea     -128(%rsp), %rdi\n"
> > +"repe      scasq\n"
> > +"  jne     fail\n"
> > +
> > +"  xor     %rax,%rax\n"
> > +"  ret\n"
> > +"fail:\n"
> > +"  movq    $1,%rax\n"
> > +"  ret\n"
> > +);
> 
> This should probably use .text at the start and .previous at the end.
> Plus .cfi_startproc and .cfi_endproc maybe.

Right, better make it a good-looking function ; done so.

Samuel

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