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git history shows "abi_versions" was used from the outset.
Cc: <mesa-stable@lists.freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98415
Reviewed-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 07755237d36754cb44c32e17e32cf1bc551d2373)
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Vulkan has a multi-arch problem... The idea behind the Vulkan loader is
that you have a little json file on your disk that tells the loader where
to find drivers. The loader looks for these json files in standard
locations, and then goes and loads the my_driver.so's that they specify.
This allows you as a driver implementer to put their driver wherever on the
disk they want so long as the ICD points in the right place.
For a multi-arch system, however, you may have multiple libvulkan_intel.so
files installed that the loader needs to pick depending on architecture.
Since the ICD file format does not specify any architecture information,
you can't tell the loader where to find the 32-bit version vs. the 64-bit
version. The way that packagers have been dealing with this is to place
libvulkan_intel.so in the top level lib directory and provide just a name
(and no path) to the loader. It will then use the regular system search
paths and find the correct driver. While this solution works fine for
distro-installed Vulkan drivers, it doesn't work so well for user-installed
drivers because they may put it in /opt or $HOME/.local or some other more
exotic location. In this case, you can't use an ICD json file with just a
library name because it doesn't know where to find it; you also have to add
that to your library lookup path via LD_LIBRARY_PATH or similar.
This patch handles both use-cases by taking advantage of the fact that the
loader dlopen()s each of the drivers and, if one dlopen() calls fails, it
silently continues on to open other drivers. By suffixing the icd file, we
can provide two different json files: intel_icd.x86_64.json and
intel_icd.i686.json with different paths. Since dlopen() will only succeed
on the libvulkan_intel.so of the right arch, the loader will happily ignore
the others and load that one. This allows us to properly handle multi-arch
while still providing a full path so user installs will work fine.
I tested this on my Fedora 25 machine with 32 and 64-bit builds of our
Vulkan driver installed and 32 and 64-bit builds of crucible. It seems to
work just fine.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: "13.0" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit d96345de989c8f9a0328cdc3588bfe186154c8ea)
Squashed with commit:
anv: Always use the full driver path in the intel_icd.*.json
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: "13.0" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 7ea4ef8849c5cc158adbdff1187b91f591552196)
Squashed with commit:
configure: Get rid of the --disable-vulkan-icd-full-driver-path flag
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: "13.0" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 3f05fc62f924c051bdb883482452fb37650d5768)
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This commit effectively reverts the following commits:
This reverts commit 0b6837a643bbbf3c57c5cc5030279fb4389b23b7.
This reverts commit 05f36435ef117e48f457b44877d04dd6249b3bb7.
This reverts commit a2ae67aa47df6dd41802462105dac7ce5ab676a2.
While the feature introduced is convinient for development it is not as
useful for distributions. Furthermore it even breaks things as one
wishes to have both 32 and 64 bit package installed on the same system.
Keep the functionality in development branch(es) and drop it from
distribution packages to avoid confusion and misuse.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
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This option makes installed Vulkan ICD files contain only a driver library
name and not a path. This is intended for distros to help them work around
multi-arch issues.
Reviewed-by: Dave Airlie <airlied@redhat.com>
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Not providing a path allows the ICD to work on multi-arch systems but
breaks it if you install anywhere other than /usr/lib. Given that users
may be installing locally in .local or similar, we probably do want to
provide a filename. Distros can carry a revert of this commit if they want
an intel_icd.json file without the path.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Chad Versace <chad@kiwitree.net>
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