From 463736887fbb6439fe5e676f6fd7990adc6bb727 Mon Sep 17 00:00:00 2001
From: Michal Idziorek <m.i@gmx.at>
Date: Thu, 23 Oct 2014 08:41:34 +0200
Subject: added execve syscall

---
 asm/int_syscall_handler.asm | 30 +++++++++++-------------------
 1 file changed, 11 insertions(+), 19 deletions(-)

(limited to 'asm/int_syscall_handler.asm')

diff --git a/asm/int_syscall_handler.asm b/asm/int_syscall_handler.asm
index c36b9b5..25de51a 100644
--- a/asm/int_syscall_handler.asm
+++ b/asm/int_syscall_handler.asm
@@ -1,11 +1,9 @@
 global int_syscall_handler
 
-[extern example_syscall]
-[extern example_syscall_2]
-
 [extern syscall_write]
 [extern syscall_read]
 [extern syscall_readdir]
+[extern syscall_execve]
 
 [bits 32]
 int_syscall_handler:
@@ -16,12 +14,6 @@ int_syscall_handler:
     push ecx
     push edx
 
-    cmp eax, 10
-    je call_example_syscall
-
-    cmp eax, 20
-    je call_example_syscall_2
-
     cmp eax, 61
     je call_write
 
@@ -31,6 +23,9 @@ int_syscall_handler:
     cmp eax, 63
     je call_readdir
 
+    cmp eax, 64
+    je call_execve
+
 done:
 
     mov ebx,eax 
@@ -54,15 +49,6 @@ done_blocking:
 
     iret           ;Interrupt-Return
 
-
-call_example_syscall:
-    call example_syscall
-    jmp done
-
-call_example_syscall_2:
-    call example_syscall_2
-    jmp done
-
 call_write:
     call syscall_write
     jmp done
@@ -72,7 +58,6 @@ call_readdir:
     jmp done
 
 call_read:
-
     mov al, 0x20   ;Port number AND command number to Acknowledge IRQ
     out 0x20, al     ;Acknowledge IRQ, so we keep getting interrupts
     sti
@@ -81,3 +66,10 @@ call_read:
 
     jmp done_blocking
 
+call_execve:
+    mov al, 0x20   ;Port number AND command number to Acknowledge IRQ
+    out 0x20, al     ;Acknowledge IRQ, so we keep getting interrupts
+    sti
+    call syscall_execve
+    jmp $ ; this should never return TODO: pop stack!?
+
-- 
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