News for hackers. Stuff that matters.

A comment on What happens before main() is executed in C and why is it important?. Parent comment

Re:What happens before main() is executed in C and why is it... by textmode on Saturday May 05, 2018 @12:31PM (#17002497)
Below is a sample "1.asm" source file which in one expt yields a 2.2K static binary.

"main" has been renamed to "xyz".

    format ELF
    section '.text' executable
    public xyz 

    extrn _exit
    extrn write

    xyz: 
    mov eax,len00
    push eax
    push char00
    mov eax,1
    push eax
    call write
    call _exit

    section '.data' writeable

    char00 db "21 symbols", 0xA 
    len00 = $ - char00
[ Parent | on HN ]
Re:What happens before main() is executed in C and why is it... by textmode on Saturday May 05, 2018 @11:11PM (#17005059)
(1.3K stripped)
[ Parent | on HN ]