ld/testsuite/ld-elf/retain5lib.s - binutils-gdb - Git at Google

 /* The link will fail if foo is included because undefined_sym is not defined.  */
 	.section	.text.foo,"axR"
 	.global	foo
 	.type	foo, %function
 foo:
 	.long undefined_sym
	/* The link will fail if foo is included because undefined_sym is not defined. */
	.section .text.foo,"axR"
	.global foo
	.type foo, %function
	foo:
	.long undefined_sym