libk  Diff

Differences From Artifact [d3081be9ee]:

• File arch/x86.lin.32.s — part of check-in [37b0cfaa06] at 2019-08-18 17:56:41 on branch trunk — revamp arch/ makefile, add generic syscall fn on posix, rewrite kiosend() to use k_platform_syscall instead of k_platform_write (user: lexi, size: 663) [annotate] [blame] [check-ins using]

To Artifact [a7ffc6f8bf]:

• File arch/x86.lin.32.s — part of check-in [b5f6f19923] at 2019-08-19 01:46:21 on branch trunk — updates, begin putting together error-handling mechanism (user: lexi, size: 0) [annotate] [blame] [check-ins using]
• File kgraft/exe.attach.c — part of check-in [f5b7fa5762] at 2019-06-27 05:52:40 on branch trunk — updates (user: lexi, size: 0) [annotate] [blame] [check-ins using]

     1         -;; abi definition file for x86 linux 32-bit
     2         -; vim: ft=nasm
     3         -
     4         -; syscall32 numbers - syscall table must be created first!
     5         -%include "system_calls.s"
     6         -
     7         -; syscall32 registers
     8         -%define sys.reg.n 6
     9         -%define sys.reg.0 eax
    10         -%define sys.reg.1 ebx
    11         -%define sys.reg.2 ecx
    12         -%define sys.reg.3 edx
    13         -%define sys.reg.4 esi
    14         -%define sys.reg.5 edi
    15         -
    16         -%macro sys 1-6
    17         -	%assign i 0
    18         -	%rep %0
    19         -		mov sys.reg. %+ i, %1 ; i'm actually shocked this worked
    20         -		%rotate 1
    21         -		%assign i i+1
    22         -	%endrep 
    23         -	syscall
    24         -%endmacro
    25         -
    26         -%define sys.call int 0x80 ; sysenter is allegedly the
    27         -  ; politically correct option but it does not actually
    28         -  ; appear to work without a whole lot of extra bullshit
    29         -
    30         -; todo: learn vdsos