An interesting Dongdong Linux C prints its own program

 

Test. c

# include < stdio. h> # include < stdlib. h> extern char * _binary_test_c_start; int main( ) {   printf ( "%s" , ( char * ) & _binary_test_c_start) ;   printf("hahah/n"); }

 

Makefile

SRC = test . c TAR = test ALL: test . c         objcopy - I binary - O elf32- i386 - B i386 test . c test . bin         gcc - o test test . c test . bin

 

Objcopy can easily make text files into objects that can be connected by connectors, and then link them into executable programs.

 

[Root @ kenthy c_par] #./test
# Include <stdio. h>
# Include <stdlib. h>

Extern char * _ binary_test_c_start;

Int main ()
{
Printf ("% s", (char *) & _ binary_test_c_start );
Printf ("hahah/N ");
Return 0;
}
Hahah

A little boring !!! I have never used objcopy. ^_^

 

Original article: http://blog.chinaunix.net/u/1574/showart_2032979.html