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switch from .ctors and .dtors to .init_array and .fini_array

#include "dietfeatures.h"

.text
.global _start
_start:
#ifdef WANT_CTOR
	movq	%rdx, %rcx		/* %rcx = dynamic fini */
#endif
	popq	%rdi			/* %rdi = argc */
	movq	%rsp,%rsi		/* %rsi = argv */
	pushq	%rdi
	
	leaq	8(%rsi,%rdi,8),%rdx	/* %rdx = envp = (8*rdi)+%rsi+8 */

#ifndef IN_LDSO
#ifdef __PIC__
	movq	environ@GOTPCREL(%rip), %rax
	movq	%rdx, (%rax)
#else
	movq	%rdx, environ(%rip)
	.hidden environ
#endif

#ifdef PROFILING
	pushq	%rdi			/* save reg args */
	pushq	%rsi
	pushq	%rdx
	pushq	%rcx

	leaq	_etext(%rip), %rsi	/* highpc */
	leaq	 .text(%rip), %rdi	/* lowpc */
	call	monitor

	popq	%rcx			/* restore reg args */
	popq	%rdx
	popq	%rsi
	popq	%rdi
#endif

#ifdef __PIE__
	call	CALL_IN_STARTCODE_PIE
	.hidden CALL_IN_STARTCODE_PIE
#else
	call	CALL_IN_STARTCODE
	.hidden CALL_IN_STARTCODE
#endif

#ifdef PROFILING
	pushq	%rax
	call	_stop_monitor
	popq	%rdi
#else
	movq	%rax, %rdi	/* return value */
#endif

#else
	call	main
	.hidden main
#endif

#if defined(__ILP32__)
	mov	$SYS_exit,%eax
	syscall
#else
	call	exit
#endif
	hlt
.Lstart:
	.size	 _start,.Lstart-_start
	.section	.note.GNU-stack,"",@progbits

.section .init_array,"aw"
.global __CTOR_LIST__
__CTOR_LIST__:

.section .fini_array,"aw"
.global __DTOR_LIST__
__DTOR_LIST__:

.section .eh_frame,"aw"
.global __EH_FRAME_BEGIN__
__EH_FRAME_BEGIN__: