mirror of
https://gitlab.freedesktop.org/mesa/drm.git
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b0815faac0
There is an excellent writeup explaining this requirement here:
https://gitlab.freedesktop.org/wayland/wayland/-/issues/175
In short, for mixed environments such as the Steam Runtime and other
container-like environments, choosing which libdrm to link into the
client's address space is a hard problem. If the runtime has a newer
libdrm than the host, then it should be preferred, because the client
may be using newly-added symbols. But if the host has a newer libdrm,
then that should be used, because drivers may be depending on those.
Bumping the DSO minor version is transparent to all users because apps
only link against the major version, e.g. DT_NEEDED libdrm.so.2; the
fact that libdrm.so.2 is a link to libdrm.so.2.122.0 is a detail known
only to the loader, but it does let a smart runtime make better
decisions.
Signed-off-by: Daniel Stone <daniels@collabora.com>
70 lines
2.3 KiB
Meson
70 lines
2.3 KiB
Meson
# Copyright © 2017-2018 Intel Corporation
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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datadir_amdgpu = join_paths(get_option('prefix'), get_option('datadir'), 'libdrm')
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libdrm_amdgpu = library(
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'drm_amdgpu',
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[
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files(
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'amdgpu_asic_id.c', 'amdgpu_bo.c', 'amdgpu_cs.c', 'amdgpu_device.c',
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'amdgpu_gpu_info.c', 'amdgpu_vamgr.c', 'amdgpu_vm.c', 'handle_table.c',
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),
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config_file,
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],
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c_args : [
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libdrm_c_args,
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'-DAMDGPU_ASIC_ID_TABLE="@0@"'.format(join_paths(datadir_amdgpu, 'amdgpu.ids')),
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],
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include_directories : [inc_root, inc_drm],
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link_with : libdrm,
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dependencies : [dep_threads, dep_atomic_ops, dep_rt],
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version : '1.@0@.0'.format(patch_ver),
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install : true,
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)
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install_headers('amdgpu.h', subdir : 'libdrm')
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pkg.generate(
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libdrm_amdgpu,
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name : 'libdrm_amdgpu',
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subdirs : ['.', 'libdrm'],
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description : 'Userspace interface to kernel DRM services for amdgpu',
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)
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ext_libdrm_amdgpu = declare_dependency(
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link_with : [libdrm, libdrm_amdgpu],
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include_directories : [inc_drm, include_directories('.')],
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)
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if meson.version().version_compare('>= 0.54.0')
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meson.override_dependency('libdrm_amdgpu', ext_libdrm_amdgpu)
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endif
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test(
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'amdgpu-symbols-check',
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symbols_check,
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args : [
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'--lib', libdrm_amdgpu,
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'--symbols-file', files('amdgpu-symbols.txt'),
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'--nm', prog_nm.full_path(),
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],
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)
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