From 0fff2e6dc6fae82da1c7978918a490c25cc36f04 Mon Sep 17 00:00:00 2001 From: Miguel Date: Sat, 1 Sep 2018 12:44:10 +0200 Subject: rename multiboot.s to start.s --- asm/start.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 asm/start.h (limited to 'asm/start.h') diff --git a/asm/start.h b/asm/start.h new file mode 100644 index 0000000..ff30326 --- /dev/null +++ b/asm/start.h @@ -0,0 +1,21 @@ +/** + * @file + * Defines the following sections/functions, some are linked at + * specific addresses in the final ELF kernel binary. + * This is specified in the _linker.ld_ file. + * + * * 0x007000 .smp - entry point for application processors (16bit code) + * * 0x100000 .multiboot - the multiboot header + * + * * .text + * * .bootstrap_stack + * * _start() - main entry point for booting cpu, calls kernel_main(). + * + * The addresses for .smp and .multiboot are based on the assumption: + * * 0x00000500 - 0x00007BFF : guaranteed free to use + * * 0x00100000 - 0x00EFFFFF : free for use (if it exists) + */ + +/** This will be called by a multiboot compilant boot-loader (i.e. grub2) */ +void _start(); + -- cgit v1.2.3