Use --gc-sections to remove unused program sections

8 years ago · ff623a90e3
parent 5d8758df59
commit ff623a90e3
2 changed files with 2 additions and 2 deletions
--- a/2
+++ b/2
@ -30,7 +30,7 @@ $(iso): $(kernel) $(grub_cfg)
 	@rm -r build/isofiles

 $(kernel): kernel $(rust_os) $(assembly_object_files) $(linker_script)
-	@ld -n -T $(linker_script) -o $(kernel) \
+	@ld -n --gc-sections -T $(linker_script) -o $(kernel) \
 		$(assembly_object_files) $(rust_os)

 kernel:
--- a/src/arch/x86_64/linker.ld
+++ b/src/arch/x86_64/linker.ld
@ -6,7 +6,7 @@ SECTIONS {
    .boot :
    {
        /* ensure that the multiboot header is at the beginning */
-        *(.multiboot_header)
+        KEEP(*(.multiboot_header))
    }

    .text :