ld: implement an actual program loader

sys/ld/arch/x86_64/resolve.S

@@ -0,0 +1,47 @@
+.code64
+
+.global _dl_runtime_resolve
+.type _dl_runtime_resolve, @function
+
+.extern dl_runtime_resolve
+.type dl_runtime_resolve, @function
+
+_dl_runtime_resolve:
+	// pop %rdi
+	// pop %rsi
+	pop %rax
+	pop %r11
+
+	push %rsp
+	push %rbp
+	push %rdi
+	push %rsi
+	push %rdx
+	push %rcx
+	push %r8
+	push %r9
+	push %rbx
+	push %r12
+	push %r13
+	push %r14
+	push %r15
+
+	mov %rax, %rdi
+	mov %r11, %rsi
+	call dl_runtime_resolve
+
+	pop %r15
+	pop %r14
+	pop %r13
+	pop %r12
+	pop %rbx
+	pop %r9
+	pop %r8
+	pop %rcx
+	pop %rdx
+	pop %rsi
+	pop %rdi
+	pop %rbp
+	pop %rsp
+
+	jmp *%rax