Kernel/LibC: Add support for init_array and fini_array

userspace/libraries/LibC/arch/i686/crt0.S

@@ -21,6 +21,14 @@ _start:
 	# call global constructors
 	call _init
 
+	movl $__init_array_start, %ebx
+	jmp 2f
+ 1: movl (%ebx), %eax
+    call *%eax
+	addl $4, %ebx
+ 2: cmpl $__init_array_end, %ebx
+	jne 1b
+
 	# call main
 	movl 0(%esp), %eax
 	xchgl %eax, 8(%esp)

userspace/libraries/LibC/arch/i686/crti.S

@@ -14,3 +14,11 @@ _fini:
 	pushl %ebp
 	movl %esp, %ebp
 	/* gcc will nicely put the contents of crtbegin.o's .fini section here. */
+
+.section .init_array
+.global __init_array_start
+__init_array_start:
+
+.section .fini_array
+.global __fini_array_start
+__fini_array_start:

userspace/libraries/LibC/arch/i686/crtn.S

@@ -8,3 +8,11 @@
 	/* gcc will nicely put the contents of crtend.o's .fini section here. */
 	popl %ebp
 	ret
+
+.section .init_array
+.global __init_array_end
+__init_array_end:
+
+.section .fini_array
+.global __fini_array_end
+__fini_array_end: