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CaptainBlood
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Joined: 24 Jan 2010
Posts: 3634
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 Posted: Fri Apr 26, 2024 12:18 pm Post subject: clang 4 building packages: user defined -flto=thin error |
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Started to implement /etc/portage/env for clang.
Regular & -flto builds fine on 2 test packages here.
Despite conformance with wiki -fuse-ld=lld advice, -ftlo=thin throws: | Code: | emerge -1 media-libs/opus
* IMPORTANT: 2 config files in '/etc/portage' need updating.
* See the CONFIGURATION FILES and CONFIGURATION FILES UPDATE TOOLS
* sections of the emerge man page to learn how to update config files.
These are the packages that would be merged, in reverse order:
Calculating dependencies ........ ..... .... ... .!!! /etc/portage/package.env references non-existent file: /etc/portage/env/unchecked
!!! /etc/portage/package.env references non-existent file: /etc/portage/env/no-build
!!! /etc/portage/package.env references non-existent file: /etc/portage/env/no-build
..!!! /etc/portage/package.env references non-existent file: /etc/portage/env/unchecked
!!! /etc/portage/package.env references non-existent file: /etc/portage/env/no-build
!!! /etc/portage/package.env references non-existent file: /etc/portage/env/no-build
... done!
Dependency resolution took 163.84 s (backtrack: 0/20).
[ebuild R ~] media-libs/opus-1.5.2
!!! The following installed packages are masked:
- sys-kernel/gentoo-sources-4.14.320::gentoo (masked by: package.mask)
/var/db/repos/gentoo/profiles/package.mask:
# Sam James <sam@gentoo.org> (2023-12-14)
# Gentoo's kernel maintainers have decided to discontinue gentoo-sources and
# gentoo-kernel for old kernel LTS branches because of the resources to require
# testing and patching them, combined with changing kernel lifecycles.
#
# The new policy is to support kernels with genpatches for 3 years after their
# release.
#
# Specifically, 4.14/4.19/5.4 have been dropped. See https://www.mpagano.com/blog/?p=315
# and http://www.kroah.com/log/blog/2018/08/24/what-stable-kernel-should-i-use/.
#
# sys-kernel/vanilla-sources will continue to be provided for all branches
# until they reach formal upstream EOL.
#
- sys-kernel/gentoo-sources-4.19.292::gentoo (masked by: package.mask)
- sys-kernel/gentoo-sources-5.4.257::local (masked by: package.mask)
- sys-kernel/gentoo-sources-4.19.294::gentoo (masked by: package.mask)
For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.
>>> Verifying ebuild manifests
>>> Emerging (1 of 1) media-libs/opus-1.5.2::gentoo
* opus-1.5.2.tar.gz BLAKE2B SHA512 size ;-) ... [ ok ]
* Checking whether python3_12 is suitable ...
* dev-lang/python:3.12 ... [ ok ]
* Using python3.12 to build (via PYTHON_COMPAT iteration)
>>> Unpacking source...
>>> Unpacking opus-1.5.2.tar.gz to /var/tmp/portage/media-libs/opus-1.5.2/work
>>> Source unpacked in /var/tmp/portage/media-libs/opus-1.5.2/work
>>> Preparing source in /var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2 ...
* Applying opus-1.3.1-libdir-macro.patch ... [ ok ]
* Applying opus-1.4-arm64-neon.patch ... [ ok ]
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2 ...
* abi_x86_64.amd64: running multilib-minimal_abi_src_configure
clang-cpp: warning: argument unused during compilation: '-E' [-Wunused-command-line-argument]
meson setup -Db_lto=true -Db_lto_mode=thin --libdir lib64 --localstatedir /var/lib --prefix /usr --sysconfdir /etc --wrap-mode nodownload --build.pkg-config-path /var/tmp/portage/media-libs/opus-1.5.2/temp/python3.12/pkgconfig:/usr/share/pkgconfig --pkg-config-path /var/tmp/portage/media-libs/opus-1.5.2/temp/python3.12/pkgconfig:/usr/share/pkgconfig --native-file /var/tmp/portage/media-libs/opus-1.5.2/temp/meson.x86_64-pc-linux-gnu.amd64.ini -Db_pch=false -Dwerror=false -Dbuildtype=plain -Ddefault_library=shared -Dcustom-modes=false -Dtests=disabled -Dassertions=false -Dhardening=false -Ddocs=disabled -Ddocdir=/usr/share/doc/opus-1.5.2 -Dintrinsics=enabled /var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2 /var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2-abi_x86_64.amd64
The Meson build system
Version: 1.3.2
Source dir: /var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2
Build dir: /var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2-abi_x86_64.amd64
Build type: native build
Project name: opus
Project version: 1.5.2
C compiler for the host machine: clang (clang 18.1.4 "clang version 18.1.4")
C linker for the host machine: clang ld.bfd 2.41
Host machine cpu family: x86_64
Host machine cpu: x86_64
Compiler for C supports arguments -fvisibility=hidden: YES
Compiler for C supports arguments -Wcast-align: YES
Compiler for C supports arguments -Wnested-externs: YES
Compiler for C supports arguments -Wshadow: YES
Compiler for C supports arguments -Wstrict-prototypes: YES
Compiler for C supports arguments -fstack-protector-strong: YES
Library m found: YES
Checking for function "lrintf" with dependency -lm: YES
Checking for function "lrint" with dependency -lm: YES
Checking for function "__malloc_hook" : NO
Check usable header "stdint.h" : YES
Checking if "restrict keyword" compiles: YES
Checking if "C99 variable-size arrays" compiles: YES
Checking if "compiler supports SSE intrinsics" : links: YES
Checking if "compiler supports SSE2 intrinsics" : links: YES
Checking if "compiler supports SSE4.1 intrinsics" : links: NO
Checking if "compiler supports SSE4.1 intrinsics with -msse4.1" : links: YES
Checking if "compiler supports AVX2 intrinsics" : links: NO
Checking if "compiler supports AVX2 intrinsics with -mavx -mfma -mavx2" : links: YES
Checking if "Get X86 CPU info via inline assembly" : links: YES
Configuring config.h using configuration
Found pkg-config: YES (/usr/bin/x86_64-pc-linux-gnu-pkg-config) 2.1.1
Program doxygen skipped: feature docs disabled
Build targets in project: 15
opus 1.5.2
Compiler support
C99 var arrays : YES
C99 lrintf : YES
Use alloca : NO (using C99 variable-size arrays instead)
Optimizations
Floating point support : YES
Fast float approximations : NO
Fixed point debugging : NO
Inline assembly optimizations : none
External assembly optimizations: none
Intrinsics optimizations : SSE, SSE2, SSE4.1, AVX2
Run-time CPU detection : SSE4.1, AVX2
General configuration
Custom modes : NO
Assertions : NO
Hardening : NO
Fuzzing : NO
Check ASM : NO
API documentation : NO
Extra programs : YES
Tests : NO
User defined options
Native files : /var/tmp/portage/media-libs/opus-1.5.2/temp/meson.x86_64-pc-linux-gnu.amd64.ini
build.pkg_config_path : /var/tmp/portage/media-libs/opus-1.5.2/temp/python3.12/pkgconfig:/usr/share/pkgconfig
buildtype : plain
default_library : shared
libdir : lib64
localstatedir : /var/lib
pkg_config_path : /var/tmp/portage/media-libs/opus-1.5.2/temp/python3.12/pkgconfig:/usr/share/pkgconfig
prefix : /usr
sysconfdir : /etc
werror : false
wrap_mode : nodownload
b_lto : true
b_lto_mode : thin
b_pch : false
assertions : false
custom-modes : false
docdir : /usr/share/doc/opus-1.5.2
docs : disabled
hardening : false
intrinsics : enabled
tests : disabled
Found ninja-1.11.1 at /usr/bin/ninja
ERROR: LLVM's ThinLTO only works with gold, lld, lld-link, ld64 or mold, not ld.bfd
A full log can be found at /var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2-abi_x86_64.amd64/meson-logs/meson-log.txt
* ERROR: media-libs/opus-1.5.2::gentoo failed (configure phase):
* configure failed
*
* Call stack:
* ebuild.sh, line 136: Called src_configure
* environment, line 3410: Called meson-multilib_src_configure
* environment, line 2090: Called multilib-minimal_src_configure
* environment, line 2290: Called multilib_foreach_abi 'multilib-minimal_abi_src_configure'
* environment, line 2540: Called multibuild_foreach_variant '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_configure'
* environment, line 2245: Called _multibuild_run '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_configure'
* environment, line 2243: Called _multilib_multibuild_wrapper 'multilib-minimal_abi_src_configure'
* environment, line 685: Called multilib-minimal_abi_src_configure
* environment, line 2284: Called multilib_src_configure
* environment, line 2773: Called meson_src_configure
* environment, line 2177: Called die
* The specific snippet of code:
* [[ ${rv} -eq 0 ]] || die -n "configure failed";
*
* If you need support, post the output of `emerge --info '=media-libs/opus-1.5.2::gentoo'`,
* the complete build log and the output of `emerge -pqv '=media-libs/opus-1.5.2::gentoo'`.
* The complete build log is located at '/var/log/portage/media-libs:opus-1.5.2:20240426-120540.log.gz'.
* For convenience, a symlink to the build log is located at '/var/tmp/portage/media-libs/opus-1.5.2/temp/build.log.gz'.
* The ebuild environment file is located at '/var/tmp/portage/media-libs/opus-1.5.2/temp/environment'.
* Working directory: '/var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2-abi_x86_64.amd64'
* S: '/var/tmp/portage/media-libs/opus-1.5.2/work/opus-1.5.2'
>>> Failed to emerge media-libs/opus-1.5.2, Log file:
>>> '/var/log/portage/media-libs:opus-1.5.2:20240426-120540.log.gz' |
Plz note sys-devel/binutils, sys-devel/mold(which is defaulted to in /etc/portage/make.conf) are installed as well as sys-devel/lld.
Forcing the later as default throws the same.
Any idea what I might be missing?
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. "
Last edited by CaptainBlood on Fri Apr 26, 2024 6:55 pm; edited 1 time in total |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 21682
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| Posted: Fri Apr 26, 2024 2:45 pm Post subject: |
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| The output posted does not appear to explain the problem, but it does reference a full log, which might be more useful. Do you think it is using a supported linker and wrongly claiming the linker is unsupported, or is it wrongly using an unsupported linker even though you told it to use a supported one? |
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CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3634
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| Posted: Fri Apr 26, 2024 3:07 pm Post subject: |
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| Hu wrote: | | but it does reference a full log, which might be more useful. |
Just what is posted, from head to toes.
| Hu wrote: | | Do you think it is using a supported linker and wrongly claiming the linker is unsupported, or is it wrongly using an unsupported linker even though you told it to use a supported one? |
No idea on my side.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3634
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| Posted: Fri Apr 26, 2024 3:51 pm Post subject: |
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Going generic "-flto" with ld.lld forced make.conf builds fine.
ld.lld checking snippet | Code: | | [174/174] clang -o src/opus_demo src/opus_demo.p/opus_demo.c.o -flto -Wl,--as-needed -Wl,--no-undefined -march=core2 -mtune=native -O2 -pipe -ftrapping-math -Wl,-O1 -Wl,-fuse-ld=lld '-Wl,-rpath,$ORIGIN/' -Wl,-rpath-link,/var/tmp/portage/media-libs/opus-1.5.2-r1/work/opus-1.5.2-abi_x86_64.amd64/src -Wl,--start-group src/libopus.so.0.10.1 -lm -Wl,--end-group |
Forced in /etc/portage/env is fine too.
Wiki suggest LDFLAGS is not even required: | Code: | # No need to set this, clang-common can handle this based on chosen USE flags
#LDFLAGS="${LDFLAGS} -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind -Wl,--as-needed" |
although rather vague on eventual required conditions.
along with: | Code: | | There should be no compatibility differences between full LTO and thin LTO. Additionally, if Clang was not built with the default-lld USE flag, add the -fuse-ld=lld value to the following LDFLAGS. |
 only relevant for clang<13, removed on the 2023-02-01.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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