mesa: Remove massive kludge that worked around PR toolchain/50277.

Now that the underlying bug in ld.elf_so is fixed, the workaround is
causing harm.

XXX pullup-10

merge mesa 21.3.7.

initial import of mesa 21.3.7

main changes since 19.1.7 include:
- more support for Vulkan functions
- better supported for newer radeonsi (both amdgpu and radeon backends)
- various bug fixes in many drivers
- many fixes and enhancements for intel drivers
- some fixes for nvidia
- OpenGL 4.6 for some drivers (intel, radeonsi)
- intel Tigerlake and Rocketlake support
- Vulkan 1.2 for some drivers
- OpenGL 4.5, GLES 3.2, and more on llvmpipe
- working Panfrost and Midgard drivers
- fix warnings in radeonsi vs newer llvm

Merge mesa 19.1.7

Import mesa 19.1.7

New features in mesa 19.1.0:

GL_ARB_parallel_shader_compile on all drivers.
GL_EXT_gpu_shader4 on all GL 3.1 drivers.
GL_EXT_shader_image_load_formatted on radeonsi.
GL_EXT_texture_buffer_object on all GL 3.1 drivers.
GL_EXT_texture_compression_s3tc_srgb on Gallium drivers and i965 (ES extension).
GL_NV_compute_shader_derivatives on iris and i965.
GL_KHR_parallel_shader_compile on all drivers.
VK_EXT_buffer_device_address on Intel and RADV.
VK_EXT_depth_clip_enable on Intel and RADV.
VK_KHR_ycbcr_image_arrays on Intel.
VK_EXT_inline_uniform_block on Intel and RADV.
VK_EXT_external_memory_host on Intel.
VK_EXT_host_query_reset on Intel and RADV.
VK_KHR_surface_protected_capabilities on Intel and RADV.
VK_EXT_pipeline_creation_feedback on Intel and RADV.
VK_KHR_8bit_storage on RADV.
VK_AMD_gpu_shader_int16 on RADV.
VK_AMD_gpu_shader_half_float on RADV.
VK_NV_compute_shader_derivatives on Intel.
VK_KHR_shader_float16_int8 on Intel and RADV (RADV only supports int8).
VK_KHR_shader_atomic_int64 on Intel.
VK_EXT_descriptor_indexing on Intel.
VK_KHR_shader_float16_int8 on Intel and RADV.
GL_INTEL_conservative_rasterization on iris.
VK_EXT_memory_budget on Intel.

New features in mesa 19.0.0:

GL_AMD_texture_texture4 on all GL 4.0 drivers.
GL_EXT_shader_implicit_conversions on all drivers (ES extension).
GL_EXT_texture_compression_bptc on all GL 4.0 drivers (ES extension).
GL_EXT_texture_compression_rgtc on all GL 3.0 drivers (ES extension).
GL_EXT_render_snorm on gallium drivers (ES extension).
GL_EXT_texture_view on drivers supporting texture views (ES extension).
GL_OES_texture_view on drivers supporting texture views (ES extension).
GL_NV_shader_atomic_float on nvc0 (Fermi/Kepler only).
Shader-based software implementations of GL_ARB_gpu_shader_fp64, GL_ARB_gpu_shader_int64, GL_ARB_vertex_attrib_64bit, and GL_ARB_shader_ballot on i965.
VK_ANDROID_external_memory_android_hardware_buffer on Intel
Fixed and re-exposed VK_EXT_pci_bus_info on Intel and RADV
VK_EXT_scalar_block_layout on Intel and RADV
VK_KHR_depth_stencil_resolve on Intel
VK_KHR_draw_indirect_count on Intel
VK_EXT_conditional_rendering on Intel
VK_EXT_memory_budget on RADV

Also, bug fixes.

initial import of mesa-18.3.6

Add workaround for non-zero initialized initial-exec TLS variables.
NetBSD doesn't support these with dlopen.

Ref:
https://bugs.freedesktop.org/show_bug.cgi?id=35268
https://mail-index.netbsd.org/pkgsrc-users/2015/09/11/msg022180.html
http://gnats.netbsd.org/50277

Fixes dlopen of libGL reported by prlw1 on current users.
From tnn, via pkgsrc/graphics/MesaLib*.

merge Mesa 18.3.4.

this work is mostly from maya@ with a little help from myself
via these github commits:


commit 57df9d9b59df14fd6ac8e30832ce4f29572a33c0
Author: coypu <coypu@sdf.org>
Date: Mon Mar 4 12:24:37 2019 +0200

Make GCC happier about prototype, include right header for __HAVE_ATOMIC64_OPS

commit 93c2f416aa316cc3d0665661c9f927f6949cdd37
Author: coypu <coypu@sdf.org>
Date: Mon Mar 4 12:16:56 2019 +0200

Make the u_atomic.c fallback locked 64bit atomics more suited

for the netbsd case: we are using __GNUC__ compilers, but without
libatomic. so we are emitting the __GNUC__ names.

Use __HAVE_ATOMIC64_OPS which is the netbsd name for this condition
(we don't run configure)

commit 84c2bf2f622f8a78f68ad1ca35b90bb991bdaab0
Author: coypu <coypu@sdf.org>
Date: Sun Mar 3 20:02:38 2019 +0200

Remove unused padding to struct.

The extra space is in the flexible array member at the end of
struct drm_i915_query_topology_info.

Clang dislikes having an extra member to the struct after the flexible
array member.

commit 00f432b0edf95a6e292e8259ad3096a07966b53c
Author: Maya Rashish <maya@NetBSD.org>
Date: Sun Feb 24 23:36:09 2019 +0200

Avoid left-shifting a negative, for clang

commit 84881d47e674b93b79f405326b3ae43af53fe611
Author: Maya Rashish <maya@NetBSD.org>
Date: Sun Feb 24 21:30:43 2019 +0200

avoid conflict with netbsd bswap32

commit d9bd43728cb5cf161d8501be6d53dee50f094df0
Author: Maya Rashish <maya@NetBSD.org>
Date: Sun Feb 24 21:30:30 2019 +0200

cast enum to appease clang

commit a84ec26c89d08028800e74313ccbbf0a1a0753ed
Author: Maya Rashish <maya@NetBSD.org>
Date: Wed Feb 6 13:07:55 2019 +0200

Apply patches from pkgsrc mesa to avoid atexit on a library.

This isn't safe to do on netbsd and results in segfaults on
program exit.

commit 335ea9c725374db31fe809a7d7f33ad8a83edd3e
Author: Maya Rashish <maya@NetBSD.org>
Date: Sat Jan 19 16:32:28 2019 +0200

Avoid left-shifting a negative (UB), appeases clang

commit 452e5dc79ee89292fe771cf0e1066d1fad55adfa
Author: Maya Rashish <maya@NetBSD.org>
Date: Sat Jan 12 17:02:04 2019 +0200

radeon picture_type is h264 and the enums match, cast to avoid

clang warning (we use -Werror)

commit 61b4bc2f7ca8d78bd4092df76daeb27621d2ea7d
Author: Maya Rashish <maya@NetBSD.org>
Date: Fri Jan 11 19:57:34 2019 +0200

Avoid redefinition, for clang.

commit c73fac417444cd79ee5a7a89b4a0fdf931e5122d
Author: Maya Rashish <maya@NetBSD.org>
Date: Sun Jan 6 19:52:12 2019 +0200

Fix some printf specifiers.

XXX more upstreaming
radeon_dma.c: https://gitlab.freedesktop.org/mesa/mesa/merge_requests/68

commit 09341f929e9d3b03a3caacaa630521bc76680344
Author: Maya Rashish <maya@NetBSD.org>
Date: Sat Feb 23 11:51:50 2019 +0200

from maya:

Import mesa 18.3.4.

Mesa 18.3.4 implements the OpenGL 4.5 API.
Some drivers don't support all the features required in OpenGL 4.5.

merge netbsd fixes.

merge Mesa 10.3.5.

initial import of MesaLib-10.3.5

merge MesaLib 7.11.2

import MesaLib 7.11.2

Brings in support for Intel Sandy Bridge and Ivy Bridge hardware, a
new shader language compiler, and various other improvements too
numerous to list here; see <http://www.mesa3d.org/relnotes.html> for
details.

merge the changes from these two upstream commits:

http://lists.freedesktop.org/archives/mesa-dev/2013-May/039720.html
http://lists.freedesktop.org/archives/mesa-dev/2013-May/039722.html

which fix:

http://www.x.org/wiki/Development/Security/Advisory-2013-05-23

merge Mesa 7.8.2.

import Mesa 7.8.2, lib part. major changes since 7.7.1:
- several new extensions for various drivers
- many i965, i915 driver fixes
- many glsl fixes

initial import of MesaLib-7.7.1

initial import of MesaLib-7.4.4

merge MesaLib 7.4.2

initial import of MesaLib-7.4.2

initial import of MesaLib-7.0.3