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Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
2025-12-07 12:29:38 -06:00

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# ROCM-CORE Introduction
ROCM-CORE is a package which can be used to get ROCm release version, get ROCm install path information etc.
It is also important to note that ROCM-CORE takes the role as a base component on which all of ROCm can depend,
to make it easy to remove all of ROCm with a package manager.
getROCmVersion function provides the ROCm version.
It also provides an example Lmod modules files for the ROCm release.
Lmod module files can be loaded with the following commands.
``` shell
module load rocm/x.y or
module load rocm
```
You can find sources and binaries in our [GitHub repository](https://github.com/ROCm/rocm-systems).
> [!NOTE]
> As with all ROCm projects, the documentation is open source. For more information, see [Contribute to ROCm documentation](https://rocm.docs.amd.com/en/latest/contribute/contributing.html).
## Installing ROCM-CORE
Before we proceed with how to install, take a look on references given below to understand System requirements, ROCm Installation prerequisites, ROCm package repository set up etc.
### Prerequisite References
* Refer [System Requirements](https://rocm.docs.amd.com/projects/install-on-linux/en/docs-6.2.2/reference/system-requirements.html#supported-gpus)
* Refer [ROCm installation for Linux](https://rocm.docs.amd.com/projects/install-on-linux/en/docs-6.2.2/index.html)
* A [ROCm](https://rocm.docs.amd.com/)-enabled platform
* To be noted that ROCM-CORE library primarily depends on having the C library available for the respective platform.
### Installing with pre-built packages
You can install ROCM-CORE on Ubuntu using
```shell
apt-get install rocm-core
```
## Building ROCM-CORE from source
You can build ROCM-CORE form source
First, get the sources from repository.
```shell
git clone https://github.com/ROCm/rocm-systems.git
```
Go to Root Directory, create a build directory:
```shell
cd projects/rocm-core; mkdir build; cd build
```
Next, configure CMake. Invoke cmake with the following variables define as deemed fit
```shell
cmake -S $PWD/../ -B . \
-DCMAKE_VERBOSE_MAKEFILE=1 \
-DCMAKE_INSTALL_PREFIX=./ \
-DROCM_VERSION="6.4.0" \
..
```
>[!NOTE]
>When specifying the path for the `CMAKE_PREFIX_PATH` variable, **do not** use the tilde (`~`)
>shorthand to represent the home directory.
### Setting up install locations
By default, the install location is set to `/opt/rocm`. You can change this using
`CMAKE_INSTALL_PREFIX`:
```shell
cmake -DCMAKE_INSTALL_PREFIX=<rocm-core-install-path> ..
```
where rocm-core-install-path is "./" in the cmake configure command shared above.
### Install
Once cmake configuration successfully completed, from the same build directory run build, install targets
```shell
cmake --build . --
cmake --build . -- install
```
### Package Generated
Once cmake configuration and build successfully completed from the same build directory trigger package generation
```shell
cmake --build . -- package
```
Once successfull execution of above command "rocm-core" RPM/DEBIAN packages will be generated (ex:rocm-core_6.4.0.60400-22.04_amd64.deb, rocm-core-6.4.0.60400-x86_64.rpm). The contents of the "rocm-core" package will include the following files:
```shell
Debian Package Sample:
$ dpkg -I rocm-core_6.4.0.60400-crdnnh.15158~22.04_amd64.deb
new debian package, version 2.0.
size 13986 bytes: control archive=2083 bytes.
305 bytes, 10 lines control
917 bytes, 11 lines md5sums
2871 bytes, 75 lines * postinst #!/bin/bash
873 bytes, 32 lines * prerm #!/bin/bash
Architecture: amd64
Description: ROCm Runtime software stack
Homepage: https://github.com/ROCm/rocm-core
Maintainer: ROCm Dev Support <rocm-dev.support@amd.com>
Package: rocm-core
Priority: optional
Section: devel
Version: 6.4.0.60400-crdnnh.15158~22.04
Installed-Size: 125
$ dpkg -c rocm-core_6.4.0.60400-crdnnh.15158~22.04_amd64.deb
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/.info/
-rw-r--r-- root/root 12 2024-11-22 10:37 ./opt/rocm-6.4.0/.info/version
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/include/
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/include/rocm-core/
-rw-r--r-- root/root 2801 2024-11-22 10:37 ./opt/rocm-6.4.0/include/rocm-core/rocm_getpath.h
-rw-r--r-- root/root 2440 2024-11-22 10:37 ./opt/rocm-6.4.0/include/rocm-core/rocm_version.h
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/cmake/
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/cmake/rocm-core/
-rw-r--r-- root/root 2878 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/cmake/rocm-core/rocm-core-config-version.cmake
-rw-r--r-- root/root 1590 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/cmake/rocm-core/rocm-core-config.cmake
-rw-r--r-- root/root 842 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/cmake/rocm-core/rocmCoreTargets-release.cmake
-rw-r--r-- root/root 3774 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/cmake/rocm-core/rocmCoreTargets.cmake
lrwxrwxrwx root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/librocm-core.so -> librocm-core.so.1
lrwxrwxrwx root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/librocm-core.so.1 -> librocm-core.so.1.0.60400
-rw-r--r-- root/root 16640 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/librocm-core.so.1.0.60400
-rw-r--r-- root/root 550 2024-11-22 10:37 ./opt/rocm-6.4.0/lib/rocmmod
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/libexec/
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/libexec/rocm-core/
-rw-r--r-- root/root 8208 2024-11-22 10:34 ./opt/rocm-6.4.0/libexec/rocm-core/runpath_to_rpath.py
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/share/
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/share/doc/
drwxr-xr-x root/root 0 2024-11-22 10:37 ./opt/rocm-6.4.0/share/doc/rocm-core/
-rw-r--r-- root/root 1113 2024-11-22 10:34 ./opt/rocm-6.4.0/share/doc/rocm-core/LICENSE.txt
RPM Package Sample:
$ rpm -qip rocm-core-6.4.0.60400-crdnnh.15158.el8.x86_64.rpm
Name : rocm-core
Version : 6.4.0.60400
Release : crdnnh.15158.el8
Architecture: x86_64
Install Date: (not installed)
Group : unknown
Size : 37096
License : MIT
Signature : (none)
Source RPM : rocm-core-6.4.0.60400-crdnnh.15158.el8.src.rpm
Build Date : Fri 22 Nov 2024 10:41:01 AM PST
Build Host : 514dbdf6c195
Relocations : /opt/rocm-6.4.0
Vendor : Advanced Micro Devices, Inc.
Summary : ROCm Runtime software stack
Description :
DESCRIPTION
===========
This is an installer created using CPack (https://cmake.org). No additional installation instructions provided.
$ rpm -qlp rocm-core-6.4.0.60400-crdnnh.15158.el8.x86_64.rpm
/opt/rocm-6.4.0
/opt/rocm-6.4.0/.info
/opt/rocm-6.4.0/.info/version
/opt/rocm-6.4.0/include
/opt/rocm-6.4.0/include/rocm-core
/opt/rocm-6.4.0/include/rocm-core/rocm_getpath.h
/opt/rocm-6.4.0/include/rocm-core/rocm_version.h
/opt/rocm-6.4.0/lib
/opt/rocm-6.4.0/lib/cmake
/opt/rocm-6.4.0/lib/cmake/rocm-core
/opt/rocm-6.4.0/lib/cmake/rocm-core/rocm-core-config-version.cmake
/opt/rocm-6.4.0/lib/cmake/rocm-core/rocm-core-config.cmake
/opt/rocm-6.4.0/lib/cmake/rocm-core/rocmCoreTargets-release.cmake
/opt/rocm-6.4.0/lib/cmake/rocm-core/rocmCoreTargets.cmake
/opt/rocm-6.4.0/lib/librocm-core.so
/opt/rocm-6.4.0/lib/librocm-core.so.1
/opt/rocm-6.4.0/lib/librocm-core.so.1.0.60400
/opt/rocm-6.4.0/lib/rocmmod
/opt/rocm-6.4.0/libexec
/opt/rocm-6.4.0/libexec/rocm-core
/opt/rocm-6.4.0/libexec/rocm-core/runpath_to_rpath.py
/opt/rocm-6.4.0/share
/opt/rocm-6.4.0/share/doc
/opt/rocm-6.4.0/share/doc/rocm-core
/opt/rocm-6.4.0/share/doc/rocm-core/LICENSE.txt
```
## ROCM-CORE Library
ROCM-CORE Library generated will be found in lib directory of the rocm-core package generated.
```shell
find . -name "librocm-core.so.*"
```
### Sample Usage of APIs provided by rocm-core Library
#### Get ROCm Version
For getting ROCm Version make use of getROCMVersion() API.
Sample Usage Example as shown below.
```C
// Usage :
int mj=0,mn=0,p=0,ret=0;
ret=getROCMVersion(&mj,&mn,&p);
if(ret !=VerSuccess ) // error occured
```
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