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Initial import of libdpf.

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Co-authored-by: Cursor <cursoragent@cursor.com>
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Ryan Henry 2026-09-24 14:08:32 -06:00
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# SIMDe Development Container
The basic idea is to set up a Debian system with lots of different
compilers and emulators for different architectures and configure
multiple builds in different directories.
Note that there are also several docker files in the test/
subdirectory. These can be used to test other operating systems,
especially older compilers which aren't supported on Debian testing
anymore.
To use this, just run the `simde-dev.sh` script and go grab ~a cup of
coffee~ lunch (it will take a while, and download a *lot* of packages).
Once the container is ready it will drop you into a bash shell in
`/opt/simde`; this is the build directory.
This will bind the parent directory (the root of the SIMDe checkout)
to `/usr/local/src/simde`; any changes to either will propogate to the
other, meaning you can continue using your normal development
environment and just re-run ninja in the container to (re)build SIMDe.
If you would like build directories to persist across multiple
invocations of `simde-dev.sh`, you can set the `PERSISTENT_BUILD_DIR`
to a directory on the host filesystem and it will be mapped to
`/opt/simde` in the container.
Once your container is finished building, just `simde-reset-build.sh`
and it should be populated with a bunch of subdirectories which you can
build with ninja. For example, `ninja -C gcc-10` will build SIMDe
using GCC 10. If you want to run the tests, `ninja -C gcc-10 test`
(or `cd gcc-10 && ninja test`).
You can also run `simde-reset-build.sh build-name` to (re)generate a
single build.
# Debian Version
By default, we use Debian testing. If you would like to use Debian
unstable instead, just run `simde-dev.sh unstable`.
## Altering or Adding Builds
Each build has an associated Meson cross file (see the `cross-files/`
subdirectory). We kind of abuse these by adding flags like `-Wextra`,
`-Werror`, `-march=...`, *etc.*, which aren't really about
cross-compilation. However, you can add or remove C/C++ flags in the
cross files, or if you want to *add* flags you can just put them in
the `CFLAGS`/`CXXFLAGS` environment variables and reconfigure the
build. You can also create a new cross file with your preferred
configuration.