Linux int $0x80

exp1:sys_exit()

.section .data
.section .text
.globl _start
_start:
        movl    $1,%eax     #_sys_call
        movl    $0,%ebx     #_return 0
        int     $0x80           

exp2:sys_fork()

.section .rodata
msg:    .ascii "hello,ak!\n"
len = .-msg
.section .text
.globl _start
_start:
        movl    $2,%eax

        int     $0x80  

        #This sys_call below, just test the fork work

        movl    $4,%eax #for see the fork call clear
        movl    $1,%ebx #do this ...interrupt
        movl    $msg,%ecx #this interrupt call will test ...
        movl    $len,%edx  #print str to the terminal
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0X80

exp3: sys_read()

.section .data
d1:     .fill 1
.section .text
.globl _start
_start:
        movl    $3,%eax               
        movl    $0,%ebx              
        movl    $d1,%ecx               
        movl    $8,%edx                 #the size you can input
        int     $0x80                  

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80
exp4:sys_write()

.section .data
d1:     .ascii "test the intterupt number 4!\n" #29
        len=.-d1
.section .text
.globl _start
_start:
        movl    $4,%eax
        movl    $d1,%ecx
        movl    $len,%edx
        movl    $0,%ebx
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

exp5:sys_open()

.section .data
filename:       .ascii "myfile"
.section .text
.globl _start
_start:
        movl $5,%eax
        movl $filename,%ebx
        movl $110,%ecx
        movl $0x0080,%edx
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

2014-04-05(finish)
exp6:sys_close()

.section .data
filename: .ascii "myfile"
#d1:    .int -1
.section .text
.globl _start
_start:
        #open a file
        movl    $5,%eax
        movl    $filename,%ebx
        movl    $111,%ecx
        movl    $0x80,%edx
        int     $0x80
        #close a file
#       movl    $d1,%ebx
#       movl    (%ebx),%ebx
        movl    $filename,%ebx  #unsigned int
        movl    (%ebx),%ebx
        movl    $6,%eax
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80
exp7:waitpid()

#waitpid() function
#need some parament
#%ebx = pid_t
#%ecx = unsigned int *
#%edx = int
.section .data
data:.int 8
.section .text
.globl _start
_start:
        movl    $7,%eax
        movl    $1,%ebx
        movl    $data,%ecx
        movl    $10,%edx
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

exp8:sys_creat()

#creat a file
.section .data
#const char * type
filename:.ascii "creat_file"
.section .text
.globl _start
_start:
        movl    $8,%eax
        movl    $filename,%ebx
        movl    $777,%ecx       #the file attribute
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

exp9:    sys_link()

.section .data
mylink:.ascii "link_"
myfile:.ascii "myfile"
.section .text
.globl _start
_start:
        movl    $5,%eax
        movl    $myfile,%ebx
        movl    $110,%ecx
        movl    $0x0080,%edx
        int     $0x80
        movl    $9,%eax
        movl    $myfile,%ebx
        movl    $mylink,%ecx
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

exp10:sys_unlink()

#unlink file
.section .data
mylink:.ascii "myfile"
.section .text
.globl _start
_start:
        movl    $10,%eax
        movl    $mylink,%ebx
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80
2014-04-06(finish)

Reference:

1//http://stackoverflow.com/questions/1242032/nasm-printing-out-time-code-doesnt-output-anything/6636239#6636239

2//http://syscalls.kernelgrok.com/

3//http://www.duntemann.com/assembly.html

4//http://www.amazon.com/exec/obidos/ASIN/0470497025/jeffduntemann-20

5//http://www.tutorialspoint.com/assembly_programming/assembly_numbers.htm

exp11:sys_execve()

#in fact it is execve()
#sys_call number 11
.section .data
run_file:
        .asciz "/bin/sh"
.section .text
.globl _start
_start:
        movl    $11,%eax
        movl    $run_file,%ebx
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

exp12:sys_chdir()

#change dir just like (cd)
#number 12 sys_call
.section .data
mypath:.ascii "~/etc/network/"
.section .text
.globl _start
_start:
        movl    $12,%eax
        movl    $mypath,%ebx
        int     $0x80


        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

exp13:sys_time()

#unfinish .....
#
.section .data
#data:.fill
.section .text
.globl _start
_start:
        movl    $13,%eax        #sys_time
        #movl   $data,%ebx
        int     $0x80
        movl    $1,%eax #sys_exit
        movl    $0,%ebx
        int     $0x80
exp14:sys_mknod()

#sys_chnod
#sys_call number 14
#%ebx=const char *
#%ecx=int
#%edx=dev_t
.section .data
data:
        .ascii "mydev"
.section .text
.globl _start
_start:
        movl    $14,%eax
        movl    $data,%ebx
        movl    $1,%ecx
        movl    $60,%edx        #cpu dev
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

exp15:sys_chmod()

#sys_chmod
#system call number 15
#the paramente
#%ebx=const char *
#%ecx=mode_t ==unsigned int
.section .data
filename:
        .ascii "myfile"
.section .text
.globl _start
_start:
        movl    $15,%eax
        movl    $filename,%ebx
        movl    $1,%ecx
        int     $0x80

        movl    $1,%eax
        movl    $0,%ebx
        int     $0x80

2014-04-07(finish)

exp16:









































































你可能感兴趣的:(linux,int,AT&T)