X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fthreads%2Fkernel.lds.S;fp=src%2Fthreads%2Fkernel.lds.S;h=b911b29fa45853714f6e069468c1cdd8b4f20b9d;hb=beddf03109baecfdda77c6e4478ac975e49faf73;hp=b5426e034b8c9c9662fe53c67908b95728a5e9e5;hpb=447755c02e674e65801fbb783823009e32458753;p=pintos-anon

diff --git a/src/threads/kernel.lds.S b/src/threads/kernel.lds.S
index b5426e0..b911b29 100644
--- a/src/threads/kernel.lds.S
+++ b/src/threads/kernel.lds.S
@@ -2,17 +2,20 @@
 
 OUTPUT_FORMAT("elf32-i386")
 OUTPUT_ARCH("i386")
-ENTRY(start)
+ENTRY(start)			/* Kernel starts at "start" symbol. */
 SECTIONS
 {
+  /* Specifies the virtual address for the kernel base. */
   . = LOADER_PHYS_BASE + LOADER_KERN_BASE;
 
   _start = .;
 
+  /* Kernel starts with code, followed by read-only data and writable data. */
   .text : { *(.text) } = 0x9090
   .rodata : { *(.rodata) *(.rodata.*) }
   .data : { *(.data) }
 
+  /* BSS (zero-initialized data) is after everything else. */
   _start_bss = .;
   .bss : { *(.bss) }
   _end_bss = .;