[pso] [tema1][win] syscall gresit

[omar Chouydary]

What??? Ce treaba au variabilele initializate cu registrul eax? Variabilele sunt pe stiva... mult dupa parametrii si n-au treaba cu registrii actuali.

Catalin Morosan <cercetasu2003 at yahoo.com> wrote:          Nu trebuie sa ai nicio variabila initializata inainte de a face "_asm mov syscall, eax" pentru ca s-ar putea sa iti modifice registrul eax.
De preferat e ca instructiunea "_asm mov syscall, eax" sa fie prima ta instructiune din functie.


  ----- Original Message ----
From: Luis Cazacu <lewisparma at gmail.com>
To: Proiectarea Sistemelor de Operare <pso at cursuri.cs.pub.ro>
Sent: Saturday, March 31, 2007 1:29:44 AM
Subject: [pso] [tema1][win] syscall gresit

Cand incerc sa aflu id-ul apelului de sistem in functia interceptor

cu urm secventa de cod:
   "_asm mov syscall, eax
     DbgPrint("syscall=%d",syscall);"

imi afiseaza syscall=1 indiferent de apelul pe care incerc sa il interceptez. 

Any ideas?
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