Squashed 'external/ELFIO/' content from commit 94f7706
git-subtree-dir: external/ELFIO git-subtree-split: 94f7706b5325b2ad9872e4481278278592cf86c9
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; nasm -f elf hello.asm # this will produce hello.o ELF object file
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; ld -s -o hello hello.o # this will produce hello executable
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section .text
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global _start ;must be declared for linker (ld)
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_start: ;tell linker entry point
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mov edx,len ;message length
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mov ecx,msg ;message to write
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mov ebx,1 ;file descriptor (stdout)
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mov eax,4 ;system call number (sys_write)
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int 0x80 ;call kernel
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mov eax,1 ;system call number (sys_exit)
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int 0x80 ;call kernel
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section .data
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msg db 'Hello, world!',0xa ;our dear string
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len equ $ - msg ;length of our dear string
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