So I'm confused. I'm going through the book "Programming from the Ground Up" and am working with using libraries.

printf is working just fine so long as I include a "\n" in the string, but without it it will print absolutely nothing.

Any idea why this happens?

Code:

.section .data

my_str:
        .ascii "Jimmy Joe is %d years old!\n\0"

my_num: 
        .long 76

.section .text

.globl _start
_start:
        pushl my_num
        pushl $my_str
        call printf

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

Also, when I use -m elf_i386 for 32-bit mode and -dynamic-linker /lib/ld-linux.so.2 -lc to link, I get the warning

ld: skipping incompatible /usr/lib64/libc.so when searching for -lc

If that makes any difference, or if anybody has any suggestions as to how to have it load the 32-bit library directly.

Thanks!