Embedded Linux System Design and Development

uClinux 353

0000001a W atexit

0000001c T main

00000028 T __uClibc_init

0000004a T __uClibc_start_main

000000ba T __uClibc_main

000000d0 T exit

…

…

00000214 D _errno

00000214 V errno

00000218 D _h_errno

00000218 V h_errno

0000021c d p.3

…

…

00000240 B __bss_start

00000240 b initialized.10

00000240 B _sbss

00000240 D _edata

00000250 B _ebss

00000250 B end

The listing shows the various symbols in the file. As any application needs

to link with libc, so in the symbol dump all the symbols except the

0x1c T

main()

are from the libc, in this case uClibc. The libc data and text have

relocation points in them indicated by the relocation table: 28 reloc entries.

Now add code to the

sample.c file.

Sample.c

int x=0xdeadbeef;

int *y=&x;

main () {

*y++;

}

Once again ...