Reduce binary sizes for the kernel and userspace apps

user/Makefile.inc

@@ -1,9 +1,10 @@
 CFLAGS := -ffreestanding -Wall -Wextra -g -fcommon -nostdinc \
-          -isystem $(ROOT)/std/include -isystem $(ROOT)/ulib -isystem $(ROOT)/share \
-          -isystem $(ROOT)/ulib/std
+	-isystem $(ROOT)/std/include -isystem $(ROOT)/ulib -isystem $(ROOT)/share \
+	-isystem $(ROOT)/ulib/std
 
 CURRENT_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
 
 include $(CURRENT_DIR)/arch/$(ARCH)/$(ARCH).mk
 
-LDFLAGS += -nostdlib -static $(shell $(CC) -print-libgcc-file-name) -T $(CURRENT_DIR)/arch/$(ARCH)/link.ld
+LDFLAGS += -nostdlib -static $(shell $(CC) -print-libgcc-file-name) \
+	-T $(CURRENT_DIR)/arch/$(ARCH)/link.ld

user/arch/x86_64/link.ld

@@ -25,4 +25,12 @@ SECTIONS {
     . = ALIGN(4K);
     _bss_end = .;
   }
+
+  /DISCARD/ : {
+    *(.eh_frame)
+    *(.eh_frame_hdr)
+    *(.gcc_except_table*)
+    *(.note*)
+    *(.comment)
+  }
 }