can run entrypoint on user elf

syscalls via call_abi are still not working

user-apps/link.x

@@ -0,0 +1,21 @@
+MEMORY
+{
+  RAM : ORIGIN = 0x00000000, LENGTH = 256K
+}
+
+SECTIONS
+{
+  .text : {
+    *(.text .text.*);
+    *(.rodata .rodata.*);
+  } > RAM
+
+  .data : {
+    *(.data .data.*);
+  } > RAM
+
+  .bss : {
+    *(.bss .bss.*);
+    *(COMMON);
+  } > RAM
+}