51 lines
2.2 KiB
Plaintext
51 lines
2.2 KiB
Plaintext
ECE391 MP3 - Package contents
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================================
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createfs
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This program takes a flat source directory (i.e. no subdirectories
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in the source directory) and creates a filesystem image in the
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format specified for this MP. Run it with no parameters to see
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usage.
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elfconvert
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This program takes a 32-bit ELF (Executable and Linking Format) file
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- the standard executable type on Linux - and converts it to the
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executable format specified for this MP. The output filename is
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<exename>.converted.
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fish/
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This directory contains the source for the fish animation program.
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It can be compiled two ways - one for your operating system, and one
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for Linux using an emulation layer. The Makefile is currently set
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up to build "fish" for your operating system using the elfconvert
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utility described above. If you want to build a Linux version, do
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"make fish_emulated". You can then run fish_emulated as superuser
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at a standard Linux console, and you should see the fish animation.
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fsdir/
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This is the directory from which your filesystem image was created.
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It contains versions of cat, fish, grep, hello, ls, and shell, as
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well as the frame0.txt and frame1.txt files that fish needs to run.
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If you want to change files in your OS's filesystem, modify this
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directory and then run the "createfs" utility on it to create a new
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filesystem image.
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README
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This file.
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student-distrib/
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This is the directory that contains the source code for your
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operating system. Currently, a skeleton is provided that will build
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and boot you into protected mode, printing out various boot
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parameters. Read the INSTALL file in that directory for
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instructions on how to set up the bootloader to boot this OS.
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syscalls/
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This directory contains a basic system call library that is used by
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the utility programs such as cat, grep, ls, etc. The library
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provides a C interface to the system calls, much like the C library
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(libc) provides on a real Linux/Unix system. A few support
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functions have also been written (things like strlen, strcpy, etc.)
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that are used by the utility programs. The Makefile is set up to
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build these programs for your OS.
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