EOS is an educational operating system for x86 platform
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GDT and IDT setup
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VESA framebuffer based terminal :D
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PS/2 keyboard and mouse support
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RAM detection and Physical Memory Manager
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Higher Half Kernel
The kernel starts at virtual address 0xC0100000
0xC0000000-0xC0400000 and 0x00000000-0x00400000 vitual addresses are mapped to one physical range - to 0x00000000-0x00400000
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Virtual Memory Manager
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Entry based kernel heap manager (kmalloc/kfree/krealloc)
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Very simple kernel command shell (KSH)
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VFS
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Initrd, uses TarFS
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MENUET01 and PE executables loaders
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System call mechanism
- User-mode and multitasking
- Synchronization (mutex, spinlock)
- FAT32 driver
- HDD driver
- PCI driver
- ACPI driver
- etc.
Go to src/kernel
- Building release version:
make build-iso- Building and running release version:
make build-iso-run- Building debug version:
make build-iso DEBUG=1- Building and running debug version:
make build-iso-run DEBUG=1- Always do following command before switching between debug and release configurations:
make clean- Guilherme Samora (psamora)
- Nikita Ivanov, Dmitrii Kychanov, etc. from u365
- wiki.osdev.org
- Arjun Sreedharan
- Stephen Fewer (stephenfewer)
- James Molloy
- levex named user from gihtub
- reddit /r/osdev
- Stackoverflow
- etc.