compile_stub.sh

Assembles the low-level boot stub and splash screen objects.

Overview

compile_stub.sh uses NASM to assemble two assembly source files into ELF object files. These objects contain the initial boot entry point and an embedded splash-screen TGA image, both of which are linked into the final kernel binary.

Prerequisites

• nasm must be available on the PATH.
• The source files src/arch/x86/boot/stub.asm and src/boot/splash_tga.asm must exist.
• The lib/ output directory must exist (created by compile.sh which clears it beforehand).

Inputs

File	Description
src/arch/x86/boot/stub.asm	x86 boot stub -- the kernel entry point before Pascal code takes over.
src/boot/splash_tga.asm	Embeds a TGA splash screen image as a binary blob.

Outputs

File	Description
lib/stub.o	ELF object for the boot stub.
lib/splash_tga.o	ELF object for the splash screen data.

Behavior

1. Assembles stub.asm into lib/stub.o using NASM with the ELF output format (-f elf).
2. Assembles splash_tga.asm into lib/splash_tga.o using the same format.

Notes

• Both files are assembled as 32-bit ELF objects, consistent with the i386 target architecture.
• stub.o is treated specially during linking: compile_link.sh places it first in the link order so that the boot entry point appears at the expected address.