From 02e6aa687c97c74bb84969eebe30267bf1634911 Mon Sep 17 00:00:00 2001 From: Alex Bates Date: Mon, 17 Aug 2020 17:49:59 +0100 Subject: [PATCH] update readme and add install script --- README.md | 110 +++++++++++++++++++++++++++++++++++++++++++++++++++++ Readme.md | 61 ----------------------------- install.sh | 61 +++++++++++++++++++++++++++++ 3 files changed, 171 insertions(+), 61 deletions(-) create mode 100644 README.md delete mode 100644 Readme.md create mode 100755 install.sh diff --git a/README.md b/README.md new file mode 100644 index 0000000000..081730c0d8 --- /dev/null +++ b/README.md @@ -0,0 +1,110 @@ +# Paper Mario + +This is a WIP decompilation of Paper Mario (USA). It builds the following ROM: + +* papermario.z64 `md5: a722f8161ff489943191330bf8416496` + +Discord: [Paper Mario Modding](https://discord.gg/urUm3VG) + +## Setup + +You'll need Linux, a Linux VM, or Windows 10 (WSL) to work on this project. + +#### Clone the repository + +```sh +$ git clone https://github.com/ethteck/papermario.git +$ cd papermario +``` + +#### Install build dependencies + +```sh +$ ./install.sh +``` + +Our install script does not yet support distros other than Ubuntu, Arch, and their derivatives. Please consider contributing to the script if you use another distro! + +#### Base ROM + +You'll need a Paper Mario (USA) ROM to work on this project. Copy it into the root directory of the repository with the name `baserom.z64`. + +#### Install tools and extract ROM + +```sh +$ make setup +``` + +### Compile the game + +```sh +$ make +``` + +If you get `OK`, you're all set! Otherwise, please feel free to reach out to us in [our Discord channel](https://discord.gg/urUm3VG). + +## Contributing + +### Dependencies + +There are a few additional dependencies needed when contributing to this project. You can install them with `./install.sh --extra`. + +### Rebuilding + +Setting the `PM_HEADER_REBUILD` environment variable will cause `make` to rebuild all `.c` files whenever a `.h` file is modified. + +```sh +$ PM_HEADER_REBUILD=1 make +``` + +If you use Visual Studio Code, you can use _Run Build Task_ (Ctrl+Shift+B) to run `make`. Any errors or warnings generated by the compiler will show up in the _Problems_ tab. + +### Matching a function + +#### Setup + +Once you've created a successful (`OK`) build, copy `build/` to `expected/build/`: + +```sh +$ mkdir -p expected +$ cp -r build expected +``` + +#### Roughly converting assembly to C + +Decide on a function to match. These can be found in the subdirectories of `asm/nonmatchings/`. Currently, functions which use float constants, data sections, or jump tables are unmatchable. + +Take the relevant `.s` file and pass it to [mips_to_c](https://github.com/matt-kempster/mips_to_c) ([web version](https://simonsoftware.se/other/mips_to_c.py)). + +If mips_to_c gives you an error about branch-likely instructions, edit the `.s` file and rename any branch-likely instructions to their unlikely equivalent (i.e. remove the `l` suffix). Add a `nop` after the branches and move the instruction that was originally in the delay slot (directly after the branch instruction) to the start of the target label. Don't commit the edited assembly. + +Open up the relevant `.c` file and replace the function's `INCLUDE_ASM` macro with the output from mips_to_c. Run the following command to attempt to compile, replacing `function_name` with the name of the function you're working with: + +```sh +./diff.py -mwo function_name +``` + +Fix any errors and rerun `diff.py`. This will involve typing the function signature correctly, which you will probably find in [Star Rod's library database](https://github.com/nanaian/star-rod/blob/master/database/common_func_library.lib). See also [common_structs.h](include/common_structs.h). + +Once a successful build is made, `difflpy` will show you the difference between the original game's assembly (on the left) and what your C code generated (on the right). + +#### Matching the function + +You're on your own now. Get your C code compiling to match the original assembly! `diff.py`, when running, will automatically recompile your code whenever you save the `.c` file. + +If you use Visual Studio Code, you can use _Run Test Task_ to run `diff.py` and show you errors and warnings from the compiler inline. You might want to attach _Run Test Task_ to a keybinding, as you'll be using it often. + +## FAQ + +* If you received the following error when running `make`: +``` +sha1sum -c checksum.sha1 +sha1sum: 'papermario.z64'$'\r': No such file or directory +: FAILED open or read +sha1sum: WARNING: 1 listed file could not be read +Makefile:118: recipe for target 'verify' failed +make: *** [verify] Error 1 +``` +> 💡 Solution +> +> This is a Windows line ending issue run `git checkout checksum.sha1` to fix it. diff --git a/Readme.md b/Readme.md deleted file mode 100644 index 7d55b42f3e..0000000000 --- a/Readme.md +++ /dev/null @@ -1,61 +0,0 @@ -# Paper Mario Decompilation - -## Setup -### Requirements -You'll need Linux or Windows 10 (WSL) to work on this project. - -### Dependencies -* *mips-linux-gnu binutils: You may be able to just download this via your package manager (`sudo apt install binutils-mips-linux-gnu`), or you'll have to build it yourself. (guide todo) - - -#### Ubuntu and co (easy mode): -For a quick and easy way to install all relevant decomp-related tools on Ubuntu and other similar distros, -``` -sudo apt install -y binutils-mips-linux-gnu build-essential pkg-config python3 python3-pip wget git clang-tidy clang-format nano vbindiff zlib1g-dev libyaml-dev libcapstone-dev -``` - -#### Building mips-linux-gnu -todo - -### Fork and clone the repo -Click the "fork" button in the top right corner of the main repo's webpage (https://github.com/ethteck/papermario) to fork this repo to your own GitHub account. After this, clone the repo to your computer via the command below: - -`git clone https://github.com/YOUR_GITHUB_USERNAME/papermario.git` - -### The Rom -You'll need a US Paper Mario rom to work on this project. Copy it into the root directory of the repository with the name `baserom.z64`. - -### Make setup -run `make setup` to set up tools and extract the rom - -### Make -run `make` to rebuild the rom. Get `OK`? If so, you're all set! Otherwise, please feel free to reach out to us in the discord. -Use `PM_HEADER_REBUILD=1 make` to rebuild C sources when any header files change. - -## FAQ -* If you received the following error when running `make setup`: -``` -/bin/bash: mips-linux-gnu-as: command not found -Makefile:92: recipe for target 'build/asm/boot.o' failed -make: *** [build/asm/boot.o] Error 127 -``` -> 💡 Solution -> -> One of the packages from the _Ubuntu and co (easy mode)_ script did not install correctly. Elevate your user permissions using `sudo su`, run the script again and append `--fix-missing` to it. -> - -
-
- -* If you received the following error when running `make`: -``` -sha1sum -c checksum.sha1 -sha1sum: 'papermario.z64'$'\r': No such file or directory -: FAILED open or read -sha1sum: WARNING: 1 listed file could not be read -Makefile:118: recipe for target 'verify' failed -make: *** [verify] Error 1 -``` -> 💡 Solution -> -> This is a Windows line ending issue run `git checkout checksum.sha1` to fix it. diff --git a/install.sh b/install.sh new file mode 100755 index 0000000000..25f29f951a --- /dev/null +++ b/install.sh @@ -0,0 +1,61 @@ +#!/bin/sh + +# Ubuntu +if command -v apt-install &> /dev/null; then + echo "Installing packages for Ubuntu" + + sudo apt install -y git build-essential binutils-mips-linux-gnu zlib1g-dev libcapstone-dev libyaml-dev || exit 1 + + if [[ $1 == "--extra" ]]; then + echo "Installing extra" + sudo apt install -y python3 python3-pip clang-tidy clang-format + python3 -m pip install stringcase + fi + + echo "Done" + exit +fi + +# Arch +if command -v pacman &> /dev/null; then + echo "Installing packages for Arch" + + # Upgrade existing packages (note: no --noconfirm) + sudo pacman -Syu || exit 1 + + # Install dependencies + sudo pacman -S --noconfirm --needed git base-devel zlib capstone libyaml || exit 1 + + # Install binutils if required + if ! command -v mips-linux-gnu-ar &> /dev/null; then + PKG="mips-linux-gnu-binutils" + if command -v aura &> /dev/null; then + sudo aura -A --noconfirm $PKG || exit 1 + elif command -v yay &> /dev/null; then + yay -S --noconfirm $PKG || exit 1 + elif command -v yaourt &> /dev/null; then + sudo yaourt -S --noconfirm $PKG || exit 1 + else + echo "AUR manager not found, installing $PKG without one" + + git clone "https://aur.archlinux.org/$PKG.git" || exit 1 + cd $PKG + sudo makepkg -si || exit 1 + cd .. + rm -rf $PKG + fi + fi + + if [[ $1 == "--extra" ]]; then + echo "Installing extra" + sudo pacman -S --noconfirm --needed python python-pip clang || exit 1 + python3 -m pip install stringcase || exit 1 + fi + + echo "Done" + exit +fi + +echo "Only Ubuntu (apt) and Arch Linux (pacman) are supported by install.sh." +echo "Please consider contributing and adding an installation script for your distro." +exit 1