xing1357/simpleos

Operating System Coded in Assembly and C

Hi there 👋

My Stats

simpleos's Issues

SSE invalid opcode

Build the script on my computer with the following version

1. GNU ld (GNU Binutils) 2.38
2. gcc (GCC) 12.1.1

My version of gcc creates the kernel with sse instructions, its a minor bug and i already solved by implementing a fucntion "init_sse()" in kernel.c which modifies the cr0 and cr4 registers.

Makefile

Makefile contains the building of file
hd.c ( currently it does not exists in the repo as far as i know)

Also, have some problems with the linker

/usr/bin/ld -m elf_i386 -T ./config/linker.ld -nostdlib --allow-multiple-definition -o out/SimpleOS.bin obj/asm/entry.o obj/asm/load_gdt.o obj/asm/load_idt.o obj/asm/exception.o obj/asm/irq.o obj/asm/load_tss.o obj/io_ports.o obj/vga.o obj/string.o obj/console.o obj/gdt.o obj/idt.o obj/isr.o obj/8259_pic.o obj/keyboard.o obj/mouse.o obj/kernel.o obj/gui.o obj/ext2.o obj/ide.o obj/tss.o obj/kheap.o obj/pmm.o
/usr/bin/ld: obj/string.o: in function `malloc':
string.c:(.text+0x4f4): undefined reference to `__stack_chk_fail_local'
/usr/bin/ld: obj/console.o: in function `printf':
console.c:(.text+0xa1d): undefined reference to `__stack_chk_fail_local'
/usr/bin/ld: obj/mouse.o: in function `mouse_handler':
mouse.c:(.text+0x3ed): undefined reference to `__stack_chk_fail_local'
/usr/bin/ld: obj/ext2.o: in function `read_inode':
ext2.c:(.text+0xd14): undefined reference to `__stack_chk_fail_local'
/usr/bin/ld: obj/ext2.o: in function `ext2_read_dir':
ext2.c:(.text+0xede): undefined reference to `__stack_chk_fail_local'
/usr/bin/ld: obj/ide.o:ide.c:(.text+0x8f9): more undefined references to `__stack_chk_fail_local' follow
/usr/bin/ld: out/SimpleOS.bin: hidden symbol `__stack_chk_fail_local' isn't defined
/usr/bin/ld: final link failed: bad value
make: *** [Makefile:59: all] Error 1

It is solved with adding the -fno-stack-protector in the CC_FLAGS but i dont think its safe.
My linker is

1. GNU ld (GNU Binutils) 2.38

I dont know if its appropriate to include this in here as its probably a bug with my linker, you can close it if nobody else has this problem

Discord Link expired

The discord link is expired

kernel panic aftern starting

TSS

Doesn't let me Init IDT

Filesystem Clears after shutdown

The filesystem clears, restarting setup, as the setupdone file does not exist anymore.

Textedit not appending properly.

The Feature for editing a existing file has a bug, in which the previously written lines are deleted. Working on fixing bug.

Accidently wrote #endif twice

Hey I think you accidentally wrote #endif twice at the end in /include/console.h