Arch Linux

hackyoung

Member

Registered: 2013-03-30

Posts: 6

Accessing a corrupted shared library

I wrote some assemble code to select the maximum from a set of number, save as select_maximum.s
assembled it with as select_maximum.s -o select_maximum.o and linked with ld -dynamic-linked /lib/ld-linux.so.2 -lc -o select_maximum select_maximum.o
It all went nice, no error reported. but when I hit the directive ./select_maximum to run the program, the bash showed me the following words
-bash: ./select_maximum: Accessing a corrupted shared library

I had no idea of this and googled it but nothing I got, I need some tips

the source code:

/* select_maximum.s
* to find the max number in a set of number
*/
.code32
.section .data
input:
    .int 32, 34, 23, 34, 45, 64, 23, 54, 2
hint:
    .asciz "the max number is %d \n"

.section .text
.globl _start
_start:
    nop
    movl $1, %edi
    mov input, %ebx
loop:
    movl input(, %edi, 4), %eax
    cmp %eax, %ebx
    cmova %eax, %ebx
    inc %edi
    cmp $10, %edi
    jne loop
    pushl %ebx
    pushl $hint
    call printf
    addl $8, %esp
    pushl $0
    call exit

Last edited by hackyoung (2013-11-18 01:18:11)

fsckd

Forum Fellow

Registered: 2009-06-15

Posts: 4,173

Re: Accessing a corrupted shared library

Moving from Arch Discussion to Programming & Scripting.

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skottish

Forum Fellow

From: Here

Registered: 2006-06-16

Posts: 7,942

Re: Accessing a corrupted shared library

Does this help?

http://stackoverflow.com/questions/4680 … bits-linux

hackyoung

Member

Registered: 2013-03-30

Posts: 6

Re: Accessing a corrupted shared library

I've tried it, but it still did not work. I got a segment error

Does this help?

http://stackoverflow.com/questions/4680 … bits-linux

cfr

Member

From: Cymru

Registered: 2011-11-27

Posts: 7,156

Re: Accessing a corrupted shared library

This isn't homework, is it?

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hackyoung

Member

Registered: 2013-03-30

Posts: 6

Re: Accessing a corrupted shared library

it isn't but my own homework. I am learning at&t assemble language
I did something like
ls -l /lib/ld-linux.so.1
bash told me:
lrwxrwxrwx 1 root root 22 Nov  9 22:55 /lib/ld-linux.so.2 -> ../lib32/ld-linux.so.2
but I could not find the file /lib32/ld-linux.so.2 even there is no lib32 derictory
what does this mean?

This isn't homework, is it?

skottish

Forum Fellow

From: Here

Registered: 2006-06-16

Posts: 7,942

Re: Accessing a corrupted shared library

/usr/lib32/ld-linux.so.2 belongs to lib32-glibc. That's why I posted the link that I did. You're on 64 bit Arch, correct? I believe that your error is coming from trying to link to the the 32 bit glibc instead of the 64 bit one.