my os

greatbridf b8a282ecb6 fix(context): new version rustc says we should use naked_asm пре 3 недеља
.cargo 1f7bed61dd feat: rust support пре 3 месеци
arch b8a282ecb6 fix(context): new version rustc says we should use naked_asm пре 3 недеља
doc 256aa9d443 feat: make TSS and GDT per cpu пре 3 недеља
gblibc 6ecf5b4237 fix build bug in gblibc пре 4 недеља
gblibstdc++ f952057453 change(vector): emplace_back should return a ref пре 3 месеци
include 68afbfce01 feat: set ap cpus online in scheduler! пре 3 недеља
src e6365b41be fix(page_fault): potential skipped free in page fault handler пре 3 недеља
user-space-program b43277c46c refactor: rewrite fs submodule with rust пре 2 месеци
.clang-format ae698248ee [partial] feat: add sync stuffs пре 1 месец
.gitignore 1f7bed61dd feat: rust support пре 3 месеци
.rustfmt.toml ae698248ee [partial] feat: add sync stuffs пре 1 месец
CMakeLists.txt bfcf57b9a0 prepare the memory layout for smp cpu init пре 3 недеља
Cargo.lock 13f7fff46d Merge branch 'multiarch' пре 3 недеља
Cargo.toml cbceec6084 feat: add percpu variables пре 3 недеља
Makefile.src 980f18bf51 fix: add smp boot option to qemu run пре 3 недеља
README.md a8adfd1dfc chore: add READM.md пре 1 месец
bochs.conf 7b880566be protected mode пре 3 година
build.rs b43277c46c refactor: rewrite fs submodule with rust пре 2 месеци
busybox 915f90251e feat(image): add busybox to mount image пре 1 година
busybox-minimal 915f90251e feat(image): add busybox to mount image пре 1 година
configure a8adfd1dfc chore: add READM.md пре 1 месец
gdb-usage.txt c07460aae0 chore: gdb notes пре 3 година
global_find.sh 13f7fff46d Merge branch 'multiarch' пре 3 недеља
init_script.sh 1977d04c21 fix(tty): some abnormal behavior in tty job control ops. пре 4 недеља
make_symbol_table.sh d6716c631d chore: use qemu for debugging пре 3 година
pretty-print.py 58eb82d5b3 feat(driver): add e1000e driver пре 3 месеци
rust-toolchain 1f7bed61dd feat: rust support пре 3 месеци
x86_64-unknown-none.json 1f7bed61dd feat: rust support пре 3 месеци

README.md

gbos

A simple OS kernel written in C++ and Rust that aims to be Linux compatible out of the box.

  • Multitasking
  • Memory management
  • Filesystem implementation
  • ELF program loader
  • Some rather naive AHCI driver and FAT32 impl.
  • TTY and job control interface (partially working)
  • Move to Rust (WIP)
  • SMP support (WIP)
  • POSIX thread support (WIP)
  • Network stack (WIP)
  • Dynamic loader support
  • Users, permission...

Build & Run

Prerequisites

Compile

Generate disk image

Debug and Run

Build and Run

./configure && make prepare && make build

make nativerun

# or if you need debugging

# 1:
make srun

# 2:
make debug

You may want to specify the correct version of build tools to use when running ./configure in ENV.

  • QEMU: QEMU used to debug run. qemu-system-x86_64 by default.
  • GDB: GDB used by make debug. We will search for gdb and x86_64-elf-gdb and check the supported archs by default.
  • FDISK_BIN: fdisk executable used to create disk image part tables. fdisk by default.

If you are doing a cross compile, run ./configure with CROSS_COMPILE set to the corresponding target triple of your cross compiler.

Run your own program

The user directory under the project dir exists mainly for some historical reason and has almost no use. So don't ever try to look inside that.

To copy your program into the built disk image, you can edit the CMakeLists.txt and add a line to the boot.img section. You can also try editing the init_script.sh to customize the booting procedure.