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Documentation: Recommend ninja by default

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Ben Wiederhake 2021-01-13 21:24:46 +01:00 committed by Andreas Kling
parent 9f64424661
commit 7562cf5157
Notes: sideshowbarker 2024-07-18 23:48:28 +09:00 
Author: https://github.com/BenWiederhake
Commit: https://github.com/SerenityOS/serenity/commit/7562cf5157c
Pull-request: https://github.com/SerenityOS/serenity/pull/4943
Reviewed-by: https://github.com/linusg
Reviewed-by: https://github.com/nico
Reviewed-by: https://github.com/predmond
Reviewed-by: https://github.com/xspager
1 changed files with 21 additions and 32 deletions
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53
Documentation/BuildInstructions.md
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@ -3,31 +3,31 @@
### Prerequisites
#### Linux prerequisites
Make sure you have all the dependencies installed:
Make sure you have all the dependencies installed (`ninja` is optional, but is faster in practice):
**Debian / Ubuntu**
```bash
sudo apt install build-essential cmake curl libmpfr-dev libmpc-dev libgmp-dev e2fsprogs qemu-system-i386 qemu-utils
sudo apt install build-essential cmake curl libmpfr-dev libmpc-dev libgmp-dev e2fsprogs ninja-build qemu-system-i386 qemu-utils
```
**Fedora**
```bash
sudo dnf install curl cmake mpfr-devel libmpc-devel gmp-devel e2fsprogs @"C Development Tools and Libraries" @Virtualization
sudo dnf install curl cmake mpfr-devel libmpc-devel gmp-devel e2fsprogs ninja-build @"C Development Tools and Libraries" @Virtualization
```
**openSUSE**
```bash
sudo zypper install curl cmake mpfr-devel mpc-devel gmp-devel e2fsprogs patch qemu-x86 qemu-audio-pa gcc gcc-c++ patterns-devel-C-C++-devel_C_C++
sudo zypper install curl cmake mpfr-devel mpc-devel ninja gmp-devel e2fsprogs patch qemu-x86 qemu-audio-pa gcc gcc-c++ patterns-devel-C-C++-devel_C_C++
```
**Arch Linux / Manjaro**
```bash
sudo pacman -S --needed base-devel cmake curl mpfr libmpc gmp e2fsprogs qemu qemu-arch-extra
sudo pacman -S --needed base-devel cmake curl mpfr libmpc gmp e2fsprogs ninja qemu qemu-arch-extra
```
**ALT Linux**
```bash
apt-get install curl cmake libmpc-devel gmp-devel e2fsprogs libmpfr-devel patch gcc
apt-get install curl cmake libmpc-devel gmp-devel e2fsprogs libmpfr-devel ninja-build patch gcc
```
Ensure your gcc version is >= 10 with `gcc --version`. Otherwise, install it.
@ -60,7 +60,7 @@ Ensure your CMake version is >= 3.16 with `cmake --version`. If your system does
#### macOS prerequisites
Make sure you have all the dependencies installed:
```bash
brew install coreutils qemu e2fsprogs m4 autoconf libtool automake bash gcc@10
brew install coreutils qemu e2fsprogs m4 autoconf libtool automake bash gcc@10 ninja
brew install --cask osxfuse
Toolchain/BuildFuseExt2.sh
```
@ -77,12 +77,12 @@ Notes:
#### OpenBSD prerequisites
```
pkg_add bash gmp gcc git gmake sudo
$ pkg_add bash gcc git gmake gmp ninja sudo
```
#### FreeBSD prerequisites
```
$ pkg add coreutils gmake bash sudo git
$ pkg add bash coreutils git gmake ninja sudo
```
#### Windows
@ -90,6 +90,8 @@ For Windows, you will require Windows Subsystem for Linux 2 (WSL2). [Follow the
Do note the ```Hardware acceleration``` and ```Note on filesystems``` sections, otherwise performance will be terrible.
Once you have installed a distro for WSL2, follow the Linux prerequisites above for the distro you installed, then continue as normal.
You may also want to install [ninja](https://github.com/ninja-build/ninja/releases)
### Build
Go into the `Toolchain/` directory and run the **BuildIt.sh** script:
```bash
@ -97,23 +99,23 @@ $ cd Toolchain
$ ./BuildIt.sh
```
Building the toolchain will also automatically create a `Build/` directory for the build to live in, and build cmake inside that directory.
Building the toolchain will also automatically create a `Build/` directory for the build to live in.
Once the toolchain and cmake have been built, go into the `Build/` directory and run the `make` and `make install` commands:
Once the toolchain has been built, go into the `Build/` directory and run the commands. Note that while `ninja` seems to be faster, you can also just use GNU make, by omitting `-G Ninja` and calling `make` instead of `ninja`:
```bash
$ cd ..
$ cd Build
$ cmake ..
$ make
$ make install
$ cmake .. -G Ninja
$ ninja
$ ninja install
```
This will compile all of SerenityOS and install the built files into `Root/` inside the build tree. `make install` actually pulls in the regular `make` (`make all`) automatically, so there isn't really a need to run it explicitly. You may also want ask `make` to build things in parallel by using `-j`, optionally specifying the maximum number of jobs to run.
This will compile all of SerenityOS and install the built files into `Root/` inside the build tree. `ninja install` actually pulls in the regular `ninja` (`ninja all`) automatically, so there isn't really a need to run it explicitly. `ninja` will automatically build as many jobs in parallel as it detects processors; `make` builds only one job in parallel. (Use the `-j` option with an argument if you want to change this.)
Now to build a disk image, run `make image`, and if nothing breaks too much, take it for a spin by using `make run`.
Now to build a disk image, run `ninja image`, and take it for a spin by using `ninja run`.
```bash
$ make image
$ make run
$ ninja image
$ ninja run
```
Note that the `anon` user is able to become `root` without password by default, as a development convenience.
@ -125,20 +127,7 @@ Bare curious users may even consider sourcing suitable hardware to [install Sere
Outside of QEMU, Serenity will run on VirtualBox. If you're curious, see how to [install Serenity on VirtualBox.](https://github.com/SerenityOS/serenity/blob/master/Documentation/VirtualBox.md)
Later on, when you `git pull` to get the latest changes, there's no need to rebuild the toolchain. You can simply run `make install`, `make image`, `make run` again. CMake will only rebuild those parts that have been updated.
#### Faster than make: "Ninja"
You may also want to replace `make` with `ninja` in the above commands for some additional build speed benefits, like reduced double-building of headers.
Most of the process stays the same:
- Go to an empty directory at the root (e.g. `Build/`) and call `cmake .. -G Ninja` inside that directory
- You might either create a new directory or reuse the existing `Build` directory after cleaning it.
- `make` becomes `ninja`
- `make install` becomes `ninja install`
- `make image` becomes `ninja image`
- `make run` becomes `ninja run`
Note that ninja automatically chooses a sane value for `-j` automatically, and if something goes wrong it will print the full compiler invocation. Otherwise, `ninja` behaves just like `make`. (And is a tad faster.)
Later on, when you `git pull` to get the latest changes, there's (usually) no need to rebuild the toolchain. You can simply run `ninja install`, `ninja image`, and `ninja run` again. CMake will only rebuild those parts that have been updated.
#### Ports
To add a package from the ports collection to Serenity, for example curl, go into `Ports/curl/` and run **./package.sh**. The sourcecode for the package will be downloaded and the package will be built. After that, run **make image** from the `Build/` directory to update the disk image. The next time you start Serenity with **make run**, `curl` will be available.