stlink/doc/compiling.md

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# Compiling from sources
## Microsoft Windows (10, 8.1)
### Common Requirements
On Windows users should ensure that the following software is installed:
* `git` (_optional, but recommended_)
* `cmake` (3.17.0 or later)
* `MinGW-w64` (7.0.0 or later) with GCC toolchain 8.1.0
### Installation
1. Install `git` from <https://git-scm.com/download/win>
2. Install `cmake` from <https://cmake.org/download><br />
Ensure that you add cmake to the $PATH system variable when following the instructions by the setup assistant.
3. Install
- _EITHER_: **MinGW-w64** from <https://sourceforge.net/projects/mingw-w64> (mingw-w64-install.exe)<br />
- _OR_: **MSVC toolchain** from Visual Studio Build Tools 2019
4. Create a new destination folder at a place of your choice
5. Open the command-line (cmd.exe) and execute `cd C:\$Path-to-your-destination-folder$\`
6. Fetch the project sourcefiles by running `git clone https://github.com/stlink-org/stlink.git`from the command-line (cmd.exe)<br />
or download the stlink zip-sourcefolder from the Release page on GitHub
#### MSVC toolchain - minimal installation
Visual Studio IDE is not necessary, only Windows SDK & build tools are required (~3,3GB).
1. Open <https://visualstudio.microsoft.com/downloads/>
2. Navigate through menus as follows (might change overtime)
`All downloads > Tools for Visual Studio 2019 > Build Tools for Visual Studio 2019 > Download`
3. Start downloaded executable. After Visual Studio Installer bootstraps and main window pops up, open `Individual Components` tab, and pick
- latest build tools (eg. `MSVC v142 - VS 2019 C++ x64/x86 build tools (v14.25)`)
- latest Windows SDK (eg. `Windows 10 SDK (10.0.18362.0)`)
4. After installation finishes, you can press `Launch` button in Visual Studio Installer's main menu.
- Thus you can open `Developer Command Prompt for VS 2019`. It is `cmd.exe` instance with adjusted PATHs including eg. `msbuild`.
- Alternatively, you can use `Developer Powershell for VS 2019` which is the same thing for `powershell.exe`. Both are available from Start menu.
- Another option is to add `msbuild` to PATH manually. Its location should be `C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin`. Then, it should be available from any `powershell.exe` or `cmd.exe` session.
### Building
#### MinGW-w64
1. Use the command-line to move to the `scripts` directory within the source-folder: `cd stlink\scripts\`
2. Execute `./mingw64-build.bat`
NOTE:<br />
Per default the build script (currently) uses `C:\Program Files\mingw-w64\x86_64-8.1.0-release-win32-sjlj-rt_v6-rev0\mingw64\bin`.<br />
When installing different toolchains make sure to update the path in the `mingw64-build.bat`.<br />
This can be achieved by opening the .bat file with a common text editor.
#### MSVC toolchain
1. In a command prompt, change the directory to the folder where the stlink files were cloned (or unzipped) to.
2. Make sure the build folder exists (`mkdir build` if not).
3. From the build folder, run cmake (`cd build; cmake ..`).
This will create a solution file `stlink.sln` in the build folder.
Now, you can build whole `stlink` suite using following command:
```
msbuild /m /p:Configuration=Release stlink.sln
```
Options:
- `/m` - compilation runs in parallel utilizing multiple cores
- `/p:Configuration=Release` - generates *Release*, optimized build.
Directory `<project_root>\build\Release` contains final executables.
(`st-util.exe` is located in `<project_root>\build\src\gdbserver\Release`).
**NOTE 1:**
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Executables link against libusb.dll library. It has to be placed in the same directory as binaries or in PATH.
It can be copied from: `<project_root>\build\3rdparty\libusb-{version}\MS{arch}\dll\libusb-1.0.dll`.
**NOTE 2:**
[ST-LINK drivers](https://www.st.com/en/development-tools/stsw-link009.html) are required for `stlink` to work.
## Linux
### Common requirements
Install the following packages from your package repository:
* `git`
* `gcc` or `clang` or `mingw32-gcc` or `mingw64-gcc` (C-compiler; very likely gcc is already present)
* `build-essential` (on Debian based distros (Debian, Ubuntu))
* `cmake` (3.4.2 or later, use the latest version available from the repository)
* `rpm` (on Debian based distros (Debian, Ubuntu), needed for package build with `make package`)
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* `pkg-config`
* `libusb-1.0`
* `libusb-1.0-0-dev` (development headers for building)
* `libgtk-3-dev` (_optional_, needed for `stlink-gui`)
* `pandoc` (_optional_, needed for generating manpages from markdown)
or execute (Debian-based systems only): `apt-get install gcc build-essential cmake libusb-1.0 libusb-1.0-0-dev libgtk-3-dev pandoc`
(Replace gcc with the intended C-compiler if necessary or leave out any optional package not needed.)
### Installation
1. Open a new terminal console
2. Create a new destination folder at a place of your choice e.g. at `~/git`: `mkdir $HOME/git`
3. Change to this directory: `cd ~/git`
4. Fetch the project sourcefiles by running `git clone https://github.com/stlink-org/stlink.git`
### Building
1. Change into the project source directory: `cd stlink`
2. Run `make release` to create the _Release_ target
3. Run `make debug` to create the _Debug_ target (_optional_)<br />
The debug target is only necessary in order to modify the sources and to run under a debugger.
The top level Makefile is just a handy wrapper for:
##### MinGW64:
```sh
$ mkdir build && cd build
$ cmake -DCMAKE_BUILD_TYPE=release -DCMAKE_TOOLCHAIN_FILE=./cmake/linux-mingw64.cmake -S ..
$ make
```
##### MinGW32:
```sh
$ mkdir build && cd build
$ cmake -DCMAKE_BUILD_TYPE=release -DCMAKE_TOOLCHAIN_FILE=./cmake/linux-mingw32.cmake -S ..
$ make
```
As an alternative you may also install
- to a user folder e.g `$HOME` with `cd build/Release && make install DESTDIR=$HOME`
- or system wide with `cd build/Release && sudo make install`.
When installing system-wide, the dynamic library cache needs to be updated with the command `ldconfig`.
### Build a Debian Package
To build the debian package you need the following extra packages: `devscripts debhelper`.
```sh
$ git archive --prefix=$(git describe)/ HEAD | bzip2 --stdout > ../libstlink_$(sed -En -e "s/.*\((.*)\).*/\1/" -e "1,1 p" debian/changelog).orig.tar.bz2
$ debuild -uc -us
```
### Set permissions with udev
By default most distributions don't allow access to USB devices.
Therefore make sure you install udev files which are necessary to run the tools without root permissions.
udev rules create devices nodes and set the group of these to `stlink`.
The rules are located in the subdirectory `etc/udev/rules.d` within the sourcefolder.
Copy them to the directory path `/etc/udev/rules.d` and subsequently reload the udev rules:
```sh
$ cp etc/udev/rules.d /etc/udev/rules.d
$ udevadm control --reload-rules
$ udevadm trigger
```
Udev will now create device node files `/dev/stlinkv2_XX`, `/dev/stlinkv1_XX`.
You need to ensure that the group `stlink` exists and the user who is trying to access these devices is a member of this group.
### Note on the use of STLink-v1 programmers:
At the time of writing the STLink-v1 has mostly been replaced with the newer generation STLink-v2 programmers and thus is only rarely used.
As there are some caveats as well, we recommend to use the STLink-v2 programmers if possible.
To be more precise, the STLINKv1's SCSI emulation is somehow broken, so the best advice possibly is to tell your operating system to completely ignore it.
Choose on of the following options _before_ connecting the device to your computer:
* `modprobe -r usb-storage && modprobe usb-storage quirks=483:3744:i`
* _OR_
1. `echo "options usb-storage quirks=483:3744:i" >> /etc/modprobe.conf`
2. `modprobe -r usb-storage && modprobe usb-storage`
* _OR_
1. `cp stlink_v1.modprobe.conf /etc/modprobe.d`
2. `modprobe -r usb-storage && modprobe usb-storage`
## macOS
### Common requirements
The best and recommended way is to install a package manager for open source software,
either [homebrew](https://brew.sh) or [MacPorts](https://www.macports.org/).
Then install the following dependencies from the package repository:
* `git`
* `gcc` or `llvm` (for clang) (C-compiler)
* `cmake`
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* `pkg-config`
* `libusb`
* `gtk+3` or `gtk3` (_optional_, needed for `stlink-gui`)
To do this with only one simple command, type:
* for homebrew:
- with gcc: `sudo brew install git gcc cmake libusb gtk+3` or
- with clang: `sudo brew install git llvm cmake libusb gtk+3` or
* for MacPorts:
- with gcc: `sudo port install git llvm-9.0 cmake libusb gtk3` or
- with clang: `sudo port install git gcc9 cmake libusb gtk3`
### Installation
1. Open a new terminal window
2. Create a new destination folder at a place of your choice e.g. at `~/git`: `mkdir $HOME/git`
3. Change to this directory: `cd ~/git`
4. Fetch the project sourcefiles by running `git clone https://github.com/stlink-org/stlink.git`
### Building
1. Change into the project source directory: `cd stlink`
2. Run `make release` to create the _Release_ target
3. Run `make debug` to create the _Debug_ target (_optional_)<br />
The debug target is only necessary in order to modify the sources and to run under a debugger.
## Build options
### Build using a different directory for shared libs
To put the compiled shared libs into a different directory during installation,
you can use the cmake option `cmake -DLIB_INSTALL_DIR:PATH="/usr/lib64" ..`.
### Standard installation directories
The cmake build system of this toolset includes `GNUInstallDirs` to define GNU standard installation directories.
This module provides install directory variables as defined by the GNU Coding Standards.
Below are the preset default cmake options, which apply if none of these options are redefined:
* `-DCMAKE_INSTALL_SYSCONFDIR=/etc`
* `-DCMAKE_INSTALL_PREFIX=/usr/local`
Author: nightwalker-87