#### Beyond Linux® From Scratch (systemd Edition) - Version 10.1

### Chapter 25. X Libraries

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# libdrm-2.4.104

## Introduction to libdrm

libdrm provides a user space library for accessing the DRM, direct rendering manager, on operating systems that support the ioctl interface. libdrm is a low-level library, typically used by graphics drivers such as the Mesa DRI drivers, the X drivers, libva and similar projects.

This package is known to build and work properly using an LFS-10.1 platform.

### Package Information

- Download (HTTP): https://dri.freedesktop.org/libdrm/libdrm-2.4.104.tar.xz

- Download MD5 sum: 6b23163def82f540e2b5e2873b1c4b92

- Download size: 412 KB

- Estimated disk space required: 12 MB (with tests)

- Estimated build time: 0.1 SBU (with tests)

### libdrm Dependencies

#### Recommended

Xorg Libraries (for Intel KMS API support required by Mesa)

#### Optional

Cairo-1.17.2+f93fc72c03e (for tests), CMake-3.19.5 (could be used to find dependencies without pkgconfig files), docbook-xml-4.5, docbook-xsl-1.79.2 and libxslt-1.1.34 (to build manual pages), libatomic_ops-7.6.10 (required by architectures without native atomic operations), Valgrind-3.16.1, and CUNIT (for AMDGPU tests)

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/libdrm

## Installation of libdrm

Install libdrm by running the following commands:

    mkdir build &&
    cd    build &&

    meson --prefix=$XORG_PREFIX -Dudev=true &&
    ninja

To check the results, issue ninja test.

Now, as the `root` user:

    ninja install

## Command Explanations

`-Dudev=true`: This parameter enables support for using Udev instead of mknod.

## Contents

Installed Programs: None
Installed Libraries: libdrm_amdgpu.so, libdrm_intel.so, libdrm_nouveau.so, libdrm_radeon.so, libdrm.so, and libkms.so
Installed Directories: /usr/include/libdrm, /usr/include/libkms, and /usr/share/libdrm

### Short Descriptions

`libdrm_amdgpu.so` | contains the AMDGPU specific Direct Rendering Manager functions
`libdrm_intel.so` | contains the Intel specific Direct Rendering Manager functions
`libdrm_nouveau.so` | contains the open source nVidia (Nouveau) specific Direct Rendering Manager functions
`libdrm_radeon.so` | contains the AMD Radeon specific Direct Rendering Manager functions
`libdrm.so` | contains the Direct Rendering Manager API functions
`libkms.so` | contains API functions for kernel mode setting abstraction

Last updated on 2021-02-20 17:41:49 -0800

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