Hello user process

user/arch/x86_64/link.ld

@@ -0,0 +1,26 @@
+ENTRY(_start)
+
+SECTIONS {
+  /* . = 0xffff000000000000; */
+  . = 0x0000000000000000;
+
+  .rodata ALIGN(4K):
+  {
+    *(.rodata .rodata.*)
+  }
+
+  .text ALIGN(4K):
+  {
+    *(.text .text.*)
+  }
+
+  .data ALIGN(4K):
+  {
+    *(.data .data.*)
+  }
+
+  .bss ALIGN(4K):
+  {
+    *(.bss .bss.*)
+  }
+}

user/arch/x86_64/x86_64.mk

@@ -0,0 +1,22 @@
+CC := x86_64-elf-gcc
+LD := x86_64-elf-ld
+
+CFLAGS += -m64 \
+					-fPIE \
+					-mno-80387 \
+					-mno-mmx \
+					-mno-sse \
+					-nostartfiles \
+					-nostdlib \
+					-mno-sse2 \
+					-mno-red-zone \
+					-fno-stack-protector \
+					-fno-stack-check \
+					-Os \
+
+LDFLAGS += -m elf_x86_64 \
+					-pie \
+					--no-dynamic-linker \
+					-z text \
+					-z max-page-size=0x1000
+