Normally, the linker will pull in any compilation unit (aka .c file) from
a static lib (such as our shared util code) that is depended on by the
code linking against it. Since that code is already compiled, the .text
section is allowed to jump anywhere in .text, and the compiler can't
garbage collect unused functions inside of a compile unit.
Teasing callgraphs apart so that normal compilation-unit-level GCing can
reduce driver size hurts the logical organization of the code and is
difficult. As an example, once I'd split the format pack/unpack tables, I
had to split out util_format_read/write() from util_format.c to avoid
pulling in pack/unpack. But even then it didn't help, because it turns
out turnip's pack calls pull in util_format_bptc.c for bptc packing, but
that file also includes the unpack impls, and those internally call
util_format_unpack, and thus we pulled in all of unpack. Splitting all of
this to separate files makes code harder to find and maintain, and is a
waste of dev time.
By setting these compiler flags, the compiler puts each function and data
symbol in a separate ELF section and the linker can then safely GC unused
text and data sections from a compile unit that gets pulled in. There's a
bit of a space cost due to having those separate sections, but it ends up
being a huge win in disk space on my personal release driver builds:
- i965_dri.so -213k
- x86 gallium dri.so -430k
- libvulkan_intel.so -272k
- aarch64 gallium dri.so -330k
- libvulkan_freedreno.so -783k
No difference on iris drawoverhead -compat -test 1 on my skylake (n=60)
Effect on debugoptimized build times (n=5)
touch nir_lower_io.c build time (bfd) +15.999% +/- 3.80377%
touch freedreno fd6_gmem.c build time (bfd) +13.5294% +/- 4.86363%
touch nir_lower_io.c build time (lld) no change
touch freedreno fd6_gmem.c build time (lld) +2.45375% +/- 2.2383%
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Acked-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5739>
v2: move declarations into libdrm
v3: fix typos
rework handling of how much memory to reserve
v4: remove unused parameter
unmap cutout on error and when the screen is destroyed
v5: move into screen_create
enable HMM only if CL gets enabled
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5906>
v2: move declarations into libdrm
v3: fix typos
rework handling of how much memory to reserve
v4: remove unused parameter
unmap cutout on error and when the screen is destroyed
v5: move into screen_create
enable HMM only if CL gets enabled
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4580>
It has no dependencies and costs virtually nothing to build. There is
no downside to enabling it unconditionally, so let's do just that.
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3161>
Compiling with this option result in too much TLS usage and FreeBSD
cannot handle that.
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Signed-off-by: Emmanuel <manu@FreeBSD.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3559>
Since a few versions, mesa now needs c++14 and compiling with gnu++11
on ppc64el fails.
Let's use the default standard and fix the collision of types between
c++ and altivec in a another patch.
Cc: mesa-stable
Signed-off-by: Frédéric Bonnard <frediz@debian.org>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4948>
We fixed the compile error a while ago.
Fixes: cc10b34e9e "util/disk_cache: Fix disk_cache_get_function_timestamp with disabled cache."
Reviewed-by: Drew Davenport <ddavenport@chromium.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5649>
Until Meson 0.47, setting `-D arrayoption=` was not the same as setting
`-D arrayoption=[]`; the latter cleared the array, while the former
filled it with an empty string option.
Since Meson 0.47 [1], the former maps to the latter, so empty items can
only be set by explicitly giving an array containing an empty string,
ie. `-D arrayoption="['']"`; however note that this is *not* what we
want in any of the current Mesa code anyway.
This makes the code handling array options a bit more complicated, and
a lot more error-prone, so let's get rid of the confusion by removing
the empty-string option.
[1] f3a8f9c34d
Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/386>
To prepare to use meson's builtin feature options in the future, which
are more powerful and provide useful feature for packagers, like the
ability to turn all "automagic" features off, and then explicitly turn
on the ones they want.
This is designed to make the transition softer, since the 'true' and
'false' are still accepted, just with a warning.
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4740>
This uses a meson builtin to handle -fvisibility=hidden. This is nice
because we don't need to track which languages are used, if C++ is
suddenly added meson just does the right thing.
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4740>
This requires less code, and will fast skip on compilers that are known
to not have these, like MSVC.
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4740>
Some classes use custom new operator which zeroes memory, however gcc does
aggressive dead-store elimination which threats all writes to the memory
before the constructor as "dead stores".
For now we disable this optimization.
The new operators in question are declared via:
DECLARE_RZALLOC_CXX_OPERATORS
DECLARE_LINEAR_ZALLOC_CXX_OPERATORS
The issue was found with lto builds, however there is no guarantee that
it didn't happen with ordinary ones.
CC: <mesa-stable@lists.freedesktop.org>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2977
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/1358
Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5104>
This function has been added in glibc 2.25, and the related syscall in
Linux 3.17, in order to avoid requiring the /dev/urandom to exist, and
doing the open()/read()/close() dance on it.
We pass GRND_NONBLOCK so that it doesn’t block if not enough entropy has
been gathered to initialise the /dev/urandom source, and fallback to the
next source in any error case.
Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2026>
It avoids calling pkg-config which was searched for in a wrong way, thus
breaking setup where unprefixed pkg-config was banned (e.g. on Exherbo).
Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Fixes: 53f9131205
("meson: fix getting cflags from pkg-config")
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4701>
The macro "_WINVER" does nothing, the macro definitions that matter for
windows API version selection are "_WIN32_WINNT" and "WINVER".
The header "sdkddkver.h" (which is included from thousands of
different windows-headers) defines "WINVER" to the same value as
"_WIN32_WINNT" of only the latter is defined, which explains why this
works right now. But we shouldn't depend on that kind of luck, and
instead define the right maco.
Fixes: 3aee462781 ("meson: add windows compiler checks and libraries")
Acked-by: Dylan Baker <dylan@pnwbakers.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4681>
In meson 0.54.0 I fixed the llvm cmake dependency to return "not found"
if shared linking is requested. This means that for 0.54.0 and later we
don't need to do anything, and for earlier versions we only need to
change the logic to force the config-tool method if shared linking is
required.
Fixes: 821cf6942a
("meson: Use cmake to find LLVM when building for window")
Acked-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4556>
Meson specifies /EDITANDCONTINUE for MSVC projects when using the debug
build-type. This collides with our across-the-board disabling of
incremental linking.
It's clear that we don't want to do incremental linking for
release-builds; it increase the code-size, and adds some needless jumps
to be able to patch in new code. But for debug-builds this seems like a
good thing; we can now debug and on-the-fly recompile changes if we want
to.
This flag seems to have been simply forwarded from the SCons build
system, where it makes a bit more sense; SCons doesn't really integrate
with visual studio, so you can't properly debug with it. But Meson does,
so let's keep some bells-and-whistles here.
So let's avoid disabling incremental linking for debug-builds. For other
builds we still want to do this, because Meson only disables it
automatically for minsize-builds.
This avoids a boat-loads of warnings on the form:
warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/INCREMENTAL:NO' specification
Acked-by: Jose Fonseca <jfonseca@vmware.com>
Acked-by: Dylan Baker <dylan@pnwbakers.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4572>
flexint.h uses stdint.h if the compiler claims to support C99. MSVC
doesn't support enough of C99 to enable this flag, but it supports
enough to keep flex happy.
Without this, we end up with *both* some flex-specific definitions as
well as our own definitions from mesa-headers, producing a slew of
compiler warnings.
Reviewed-by: Brian Paul <brianp@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4577>
Choosing LLVM's link mode is legitimate on UNIX systems, but only static
actually really works under Windows.
Give shared-llvm a default 'auto' mode which will pick the previous
default of true (shared) on UNIX systems, but newly defaulting to false
(static) on Windows.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Suggested-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4555>
debug_stack functions are implemented in another file for Android.
Also add backtrace library dependency.
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-bu: Kristian H. Kristensen <hoegsber@google.com>
Signed-off-by: Dominik Behr <dbehr@chromium.org>
Acked-by: Dylan Baker <dylan@pnwbakers.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2435>
These warnings triggers for me, and they are harmless as-is. Let's
disable them to avoid hiding actually scary warnings.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4343>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
[Eric: factor out the is_dir_or_link() check and fix a bug in v1]
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
v3: include directory path when lstat'ing files
v4: fix inverted check in enumerate_sysfs_metrics()
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2258>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2258>
Only clang has this argument (at least as of clang 8 and gcc 9), which
errors when using the gcc empty initializer syntax in C:
```C
struct foo f = {};
```
GCC has a warning for this, but only when using -Wpedantic, which is a
lot of noise to lose useful warnings in.
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Only required for Intel tools or the Vulkan overlay layer.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Fixes build with MinGW, with shared LLVM and lto
/tmp/opengl32.dll.BxiIYm.ltrans59.ltrans.o:<artificial>:(.text+0x1674): undefined reference to `LLVMAddInstructionCombiningPass'
See also scons/llvm.py
Acked-by: Dylan Baker <dylan@pnwbakers.com>
This allows ZSTD instead of ZLIB to be used for compressing the shader
cache.
On a 72 core system emulating skl with a full shader-db (with i965):
ZSTD:
1915.10s user 229.27s system 5150% cpu 41.632 total (cold cache)
225.40s user 10.87s system 3810% cpu 6.201 total (warm cache)
154M (235M on disk)
ZLIB:
2231.33s user 194.24s system 1899% cpu 2:07.72 total (cold cache)
229.15s user 10.63s system 3906% cpu 6.139 total (warm cache)
163M (244M on disk)
Tim Arceri sees (8 core ryzen and a full shader-db):
ZSTD:
2505.22 user 40.50 system 3:18.73 elapsed 1280% CPU (cold cache)
418.71 user 14.93 system 0:46.53 elapsed 931% CPU (warm cache)
454.3 MB (681.7 MB on disk)
ZLIB:
3069.83 user 40.02 system 4:20.13 elapsed 1195% CPU (cold cache)
425.50 user 15.17 system 0:46.80 elapsed 941% CPU (warm cache)
470.3 MB (701.4 MB on disk)
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com> (v1)
Reviewed-by: Eric Anholt <eric@anholt.net>
This was made optional in ff9bf223c2 ("meson: make nm binary optional")
for Windows, but proper windows has been added and `nm` is now only used
on Unix systems.
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviwed-by: Dylan Baker <dylan@pnwbakers>
Eric Anholt
Karol Herbst
Michel Dänzer
Eric Engestrom
Timothy Arceri
Emmanuel
Frédéric Bonnard
Bas Nieuwenhuizen
Jan Beich
Eric Engestrom
Dylan Baker
Danylo Piliaiev
Emmanuel Gil Peyrot
Quentin Glidic
Erik Faye-Lund
Dylan Baker
Daniel Stone
Dominik Behr
Pierre-Eric Pelloux-Prayer
Vinson Lee
Kristian H. Kristensen
Samuel Thibault
Alan Coopersmith
Kenneth Graunke
Samuel Pitoiset
Michel Zou