GNU Tools Weekly News Week 2 (September 7, 2025)

GNU Tools Weekly News Week 2 (September 7, 2025)

[GNU Tools weekly via Gdb]

GNU Weekly New Update Week 2  (September 7, 2025)

General/big GNU toolchain news (including sourceware news):
GDB 17 branched off of trunk: September 6th
Hourly snapshots of gcc documentation:
https://fosstodon.org/@sourceware/115164400639261923
Anubis upgraded to v1.22.0 on sourceware.org
Actions enabled for forge.sourceware.org
forge.sourceware.org has been updated to the @forgejo v12.0.3 security release.

GCC discussion:
* C++ vs. -ftrivial-auto-var-init= (and C++26 P2795R5)
** https://inbox.sourceware.org/gcc/78B772CA-988D-4C1F-9A79-BD862BD0E30E@oracle.com/T/

GCC commits:
* Implement C2Y N3457 - The __COUNTER__ predefined macro
* Increase default number of LTO partitions from 128 to 512 (high core
count machines)
* Implement LWG4222 'expected' constructor from a single value missing
a constraint
* RISCV: Fix vector intrinsics with LTO
* RISCV: Add some XAndes vendor extensions support.
* Accesses via *this are not trapping (Gimple level improvement)
* Allow translations of a lot of C FE messages
* Introduce the dep_fusion pass (instead of depending on the schedule
for macro level fusion)
* Document remaining some more C++ (library) implementation-defined behavior.
* Handle aggregate zeroing in SCCVN as skipped may-def
* Improve copyprop of aggregates by allowing for propagation to happen

GCC bugzilla stats:
* 108 new issues filed
* 85 issues closed

glibc commits:
* AArch64: Implement exp2m1 and exp10m1 routines
* backported to release branches: AArch64: Fix SVE powf routine [BZ #33299]

gdb/binutils commits:
* gdb: aarch64 Guarded Control Stack support was added (last week but
GDB news is new this week)

GNU Tools Weekly News Week 3 (September 14, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Update Week 3  (September 14, 2025)

General/big GNU toolchain news (including sourceware news):
The GNU tools Cauldron 2025 schedule is now live:
https://conf.gnu-tools-cauldron.org/opo25/schedule/
Sourceware Together; Open Office was held on Friday September 12th
gccrs August 2025 Monthly report:
https://inbox.sourceware.org/gcc/1a8ba586-89c7-4a3a-b16e-4757fed460c1@embecosm.com/T/#u

GCC discussion:
* Should the forge-bot send patches to the gcc-patches mailing list?
https://inbox.sourceware.org/overseers/20250909215535.GO19968@gnu.wildebeest.org/T/
* Attribute for custom memset function:
https://inbox.sourceware.org/gcc/CAH6eHdSdx4nd=hyyQGjzfc2GOLmM=E1w8PGBC++5zBWaZ=ZKfw@mail.gmail.com/T/
* RISC-V nightly performance testing of GCC on SPEC CPU 2017:
https://inbox.sourceware.org/gcc/4ED897B6-0F37-4954-A18F-47EC768F9808@igalia.com/T/
* Clarification about RTL shifts semantics:
https://inbox.sourceware.org/gcc/87y0qk27sc.fsf@googlemail.com/T/

GCC commits:
* Improve the malloc+memset->calloc optimization (not doing as much
and doing more)
* C++26: libstdc++: Implement constant_wrapper, cw from P2781R9.
* C++26: libstdc++: Adjust span/mdspan CTAD for P2781R9.
* C++26: libstdc++: Apply LWG4351 to CTAD of span/mdspan.
* c++: Fix mangling of _Float16 template args
* c, c++: Allow &__real__ static_var in constant expressions
* c++20: Change mangling of Intel/Motorola extended long double
literals ** ABI CHANGE**
* c: Warn when returning nested functions that require a non-local context.
* new fabs(a+0.0) -> fabs(a) pattern (From a first time contributor)
* c2y:: Implement N3517 array subscripting without decay
* ~70 commits to the Ada front-end

GCC bugzilla stats:
* 97 new issues filed
* 64 issues closed

glibc commits:
* Fix build for -Os for a few targets
*  AArch64: add optimised strspn/strcspn
* Use builtin atomics more
* benchtests: Add lgamma, asinh, and acosh benchmarks

gdb/binutils discussion:
* gdb XML type for SME ZA storage:
https://inbox.sourceware.org/gdb/CANnS9ruMH-VeRN+SXrP2uOxkMg=mDTZWab=3R7-77Aa8apGEFQ@mail.gmail.com/T/
* GDB 17 pre-release (first prelease for GDB 17 before RCs) for
testing: https://inbox.sourceware.org/gdb-patches/86y0qku8qm.fsf@gnu.org/T/
* Removal of stabs debug info support in GDB:
https://inbox.sourceware.org/gdb-patches/20250910203035.1702632-1-guinevere@redhat.com/T/

GNU Tools Weekly News Week 4 (September 21, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Update Week 4  (September 21, 2025)

General/big GNU toolchain news (including sourceware news):
One week away from the GNU tools cauldron; hope to see many of you there
**** Will be skipping next week's newsletter and will be continuing
the week after due to Cauldron ****
Sourceware will have stickers at the GNU tools cauldron:
https://fosstodon.org/@sourceware/115231488337301194
forge.sourceware.org was updated to forgejo v12.0.4 security release
In case you missed it; the sourceware open office Friday meetings
notes were published:
https://inbox.sourceware.org/binutils/20250914234026.GA13925@gnu.wildebeest.org/T/#t

GCC discussion:
* How to test for errors without line? -
https://inbox.sourceware.org/gcc/d1b8af9a-bb1c-4c82-b397-3c998e803df1@netcologne.de/T/#t
* Regenerating *.opt.urls doesn't do anything -
https://inbox.sourceware.org/gcc/a8400546-a907-48da-8a9b-df66c8a0c11f@netcologne.de/T/#t
** Ending up being a bug in the regenerate-opt-urls.py scripts when
there is no documentation in some cases:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121958

GCC commits:
* Ada: Preliminary implementation of structural generic instantiation
https://gcc.gnu.org/cgit/gcc/commit/?h=trunk&id=e564d6b1a7ea93b96c9b38c2434c8fc54e9db875
* Fortran: Implement -fexternal-blas64
* Fortran: Intrinsic functions in PDT specification exprs.
* modula2: New wideset implementation
* c: Implement C2y N3481 constraint against lvalue conversion with
incomplete type
* libstdc++: Implement C++23 P2590R2 - Explicit lifetime management
* libstdc++: Add NTTP bind_front, -back, not_fn (P2714)
* libstdc++: Fix missing change to views::pairwise from P2165R4 [PR121956]
* Add more unsigned SAT_MUL detection
* Handling of memcpy with copy propagation for aggregates
* AVR: Add support for AVR32EB14/20/28/32.
* AArch64: Add SME LUTv2 architecture and intrinsics
* RISC-V: Combine vec_duplicate + vwaddu.vv to vwaddu.vx on GR2VR cost

GCC bugzilla stats:
* 74 new issues filed
* 54 issues closed

glibc commits:
* manual: Explain our implementation-defined memstream semantics

gdb/binutils commits:
* Remove Solaris/PowerPC support from binutils
*

GNU Tools Weekly News Week 7 (October 12, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Update Week 7  (October 12, 2025)

General/big GNU toolchain news (including sourceware news):
* Sourceware Open Office was held on Friday October 10th
* Videos of the 2025 GNU tools Cauldron are now published on youtube
** https://www.youtube.com/playlist?list=PL_GiHdX17WtxuKn7QYme8EfbBS-RKSn0w
** https://gcc.gnu.org/wiki/cauldron2025
* LWN.net has a few write ups about the GNU tools Cauldron
** GCCrs after libcore -  https://lwn.net/Articles/1040197/
** Next steps for BPF support in the GNU toolchain -
https://lwn.net/Articles/1039827/
** Kernel hackers at Cauldron, 2025 edition -  https://lwn.net/Articles/1039784/
* GCC 16 stage 3 starts Nov. 17th and GCC 16 status was posted
**  https://inbox.sourceware.org/gcc/q5nop2q5-n0nr-7622-o39r-o116271p79n9@fhfr.qr/
* GDB 17.1 release update -- 2025-10-11
** https://inbox.sourceware.org/gdb-patches/aOrnv83K4oE0cdbV@adacore.com/


GCC discussion:
* RFC: Debug info for coroutine suspension locations
** https://inbox.sourceware.org/gcc/CAB6OZBHVoqDyT+KD+x_u6mM96Brr82+1L0pSBy8y+d-wu2DZGA@mail.gmail.com/
* RFD: labels for GCC in the forge
** https://inbox.sourceware.org/gcc/5675fa61-3aaf-4763-be22-002616ed1bc8@arm.com/
* Notes from Cauldron 2025 GCC GSoC BoF
** https://inbox.sourceware.org/gcc/ri6ecrdz5eh.fsf@virgil.suse.cz/


GCC commits:
* Improve vectorization of bool types
* AVR: Speed up floating point comparisons
* Handle commonization of trailing stores earlier
* c: Implement C2y handling of incomplete tentative definitions
* c: Allow variably-modified types in generic associations for C2Y
(part of N3348)
* c++: C++26 va_start - part of P3348R4
* libstdc++: Implement strided_slice, full_extent_t.,
submdspan_mapping_result from <mdspan> (N5014)
* libstdc++: Implement std::layout_left_padded and
std::layout_right_padded  (N5014)
* libstdc++: Implement P3107R5 and P3235R3 optimizations for std::print
* aarch64: Improve Apple M3 cores, add M4
* Add a simple DSE to help out early code generation
* AVR: Allow target to chose address-space for artificial rodata
(switch to lookup tables)

GCC bugzilla stats
* 94 new issues filed
* 85 issues closed

glibc commits:
* ppc64le: optimized strcmp and strncmp for power10
* x86: Detect Intel Nova Lake and Wildcat Lake Processors

gdb/binutils commits:
* aarch64: Add GICv5 system registers support for binutils
* aarch64: Add SME_TMOP, SME_MOP4, SSVE_FEXPA, and SSVE_BITPERM
support for binutils

binutils discussion:
* GNU Tools Cauldron SFrame talk notes
** https://inbox.sourceware.org/binutils/933bbc83-5732-4655-870c-4c50b3742637@oracle.com/

GNU Tools Weekly News Week 8 (October 19, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Update Week 8  (October 19, 2025)

General/big GNU toolchain news (including sourceware news):
* notes from Sourceware Open Office was held on Friday October 10th
** https://inbox.sourceware.org/gcc/20251016235632.GR30855@gnu.wildebeest.org/

GCC discussion:
* New GCC maintainers/reviews
** Tamar Christina is co-maintainer of the vectorizer
*** https://inbox.sourceware.org/gcc/CAGWvnyngWFgCRASRvTe2PoH4r8+A5WZGeChi1U+CW69hOOF2Mw@mail.gmail.com/T/#u
** Robin Dapp is a reviewer of the vectorizer
*** https://inbox.sourceware.org/gcc/CAGWvnyn8WuNoJ_Q8Mh_k7J=2QU0sRHs3FqoBJoWaSmccqU+zvg@mail.gmail.com/T/#u
** tree-if-conv.cc is officially part of the vectorizer maintainership area
*** https://inbox.sourceware.org/gcc/CAGWvnymXW5yWq_JT3mF=ea2PRPRDtRg6jj7u_Nr=g-otBDfe_w@mail.gmail.com/T/#u
* Patches for adding Algol 68 to GCC were posted
** https://inbox.sourceware.org/gcc-patches/87ms5magbr.fsf@gentoo.org/T/#t
* How to write/read tree contains ssa_name in lto
** https://inbox.sourceware.org/gcc/CAPt2h2bGo-cHK8CGc6=s2DFjGJwkpPqumT8-VyUZxg8GWVDrAw@mail.gmail.com/
** Turned into a discussion on how to handle recording if 2 memory
allocations happen how to mark if one is loaded from; the other does
not trap too
* plans for gcobol 16
** https://inbox.sourceware.org/gcc/20251006145028.d25a3b8e792fe04512ce3775@schemamania.org/
* Discussion around patches from the sourceware forge
** https://inbox.sourceware.org/gcc/CAPS5khb1AJW3ds-KmDKwBAfWH6ApV-zo-xJoidMPmMxn-kf0vQ@mail.gmail.com/T/#m86a67388fed189739518ee1314f3e8736bbf0833
* Add btf_decl_tag and btf_type_tag C attributes for GCC v11 of the patches
** https://inbox.sourceware.org/gcc-patches/20250927090702.979562-1-david.faust@oracle.com/T/#m0812b326872ebae48b935274726e5ec1f1a18b46

GCC commits:
* Enable constant propagation to OpenMP kernels
** New first time contributor
** big improvement for openmp
* Allow target to chose address-space for artificial rodata
** Improves AVR target size requirements when dealing with conversion
of switch tables to constant lookup tables and CRC lookup tables
** https://gcc.gnu.org/cgit/gcc/commit/?h=trunk&id=e347e2b81ac7daa7382c611a62d54ec0b761bee8
** 7 years from the initial patch to the current pushed one
* Initial support for Intel Wildcat Lake processors
* Implement P1494 and P3641 Partial program correctness (c++ and library)
* Enable runtime thread detection with -ftree-parallelize-loops
* libstdc++: Implement P2835R7 Expose std::atomic_ref's object address

GCC bugzilla stats
 * 77 new issues filed
 * 60 issues closed

 glibc commits:
* Implement C23 memalignment
* aarch64: clear ZA state of SME before clone and clone3 syscalls

glibc discussion:
* compiling with clang patches posted
** https://inbox.sourceware.org/libc-alpha/20251017191632.2278298-1-adhemerval.zanella@linaro.org/

gdb/binutils commits:
* binutils: Add a position statement about LLM generated content
** https://sourceware.org/cgit/binutils-gdb/commit/?id=c0316a54b489d68e30de718aee69ab441799aad2

 binutils discussion:
* continued GNU Tools Cauldron SFrame talk notes
** https://inbox.sourceware.org/binutils/933bbc83-5732-4655-870c-4c50b3742637@oracle.com/
** Also related LLVM discussion about adding SFrame support:
https://discourse.llvm.org/t/rfc-adding-sframe-support-to-llvm/86900

GNU Tools Weekly News Week 9 (October 26, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Update Week 9  (October 26, 2025)

General/big GNU toolchain news (including sourceware news):
 * Valgrind 3.26.0 released
* Stabs debugging info support was removed from GDB

GCC discussion:
* Contributing the Algol 68 Front-End to GCC
** https://inbox.sourceware.org/gcc/87zf9kov10.fsf@oracle.com/
* Do people find the "Option Summary" in the GCC manual useful?
** https://inbox.sourceware.org/gcc/e9a10fd7-4c50-4376-8c7b-64233e35894e@baylibre.com/

GCC commits:
* C2y:  Implement static assertions in expressions
* C2y: Allow unspecified arrays in generic association.
* Simplification of vec_perm chains implementing concat-and-extract
** Improves SIMDe code generation for non-x86 targets
* Simplification pattern of round semantics
** Improves SPEC 2017's 538.imagick_r by ~3%
* C++23: Implement  P2674R1 - A trait for implicit lifetime types
* Implement bool reduction vectorization
** x86_64 and aarch64 (both SIMD and SVE)
* libstdc++: Implement optional<T&> from P2988R12 (C++26)
* cobol: Implement the XML PARSE statement.
* phiopt: Finish up moving minmax_replacement to match-and-simplify
** This was a partial transition that was started 2 years ago

GCC bugzilla stats
 * 93 new issues filed
 * 89 issues closed

glibc commits:
 * Many fixes for compiling glibc with clang

gdb/binutils commits:
* GDB: Stabs debugging support was REMOVED

 binutils discussion:
* continued GNU Tools Cauldron SFrame talk notes
** https://inbox.sourceware.org/binutils/933bbc83-5732-4655-870c-4c50b3742637@oracle.com/
** Also related LLVM discussion about adding SFrame support:
 https://discourse.llvm.org/t/rfc-adding-sframe-support-to-llvm/86900

GNU Tools Weekly News Week 10 (November 2, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 10 (November 2, 2025)

General/big GNU toolchain news (including sourceware news):
 * The GCC Steering Committee has a wiki page detailing their mission
and current requests are listed
  ** https://gcc.gnu.org/wiki/gcc-steering-committee
* Sourceware infrastructure community updates for Q3 2025
  ** Includes an update on forge
  ** https://inbox.sourceware.org/gcc/20251029104337.GN26406@gnu.wildebeest.org/T/#u
 * Office Hours for the GNU Toolchain was held on October 30, 2025
  ** Notes from the call can be found at https://gcc.gnu.org/wiki/OfficeHours
 * RISCV GCC: ABI breakage with fixed-length vector arguments

 GCC discussion:
  * GCC Wiki Warning History
   ** https://inbox.sourceware.org/gcc/CAF9ehCWJbihdCAV1xEeW2jrSJ12q=H-6=xH4EFtuOkfL4xxM9w@mail.gmail.com/T/#t
   ** https://gcc.gnu.org/wiki/WarningHistory
 * a new version of `C: implement defer statements as per ts 25755` was posted
  ** https://inbox.sourceware.org/gcc-patches/20251027231813.954-1-navi@vlhl.dev/T/#t


GCC commits:
 * Rust/gccrs: 143 commits sync up
 * Ada/GNAT: 19 commit sync up
 * C: Add GNU extension allowing compound literals of variable size
 * Start to fix toplevel inline-asm with LTO
 * libstd++ (library side): Implement C++23 P2674R1 - A trait for
implicit lifetime types
 * Use the ranger in niter (helps with ctz loops)
 * RISC-V: Implement standard fixed-length vector calling convention variant

GCC bugzilla stats
 * 97 new issues filed
 * 90 issues closed

glibc commits:
 * More fixes for compiling glibc with clang

gdb discussion:
 * test gdb as it runs qemu simulator
  ** https://inbox.sourceware.org/gdb/874irebykq.fsf@tromey.com/T/#mc83281aa015bbf793fb2372363848bb1ad7fe403

binutils discussion:
 * continued GNU Tools Cauldron SFrame talk notes
 ** https://inbox.sourceware.org/binutils/933bbc83-5732-4655-870c-4c50b3742637@oracle.com/
 ** Also related LLVM discussion about adding SFrame support:
   https://discourse.llvm.org/t/rfc-adding-sframe-support-to-llvm/86900

Re: GNU Tools Weekly News Week 11 (November 9, 2025)

[GNU Tools weekly via Gdb]

Sorry for being late (stuff happened)

GNU Tools Weekly News Week 11 (November 9, 2025)

General/big GNU toolchain news (including sourceware news):
 * GCC stage 1 ends Nov 14th this week!
 * new gprofng maintainers in binutils
  ** Claudiu Zissulescu and Jose E. Marchesi, congrats
 * The GCC Steering Committee has a wiki page detailing their mission
and current requests are listed
   ** https://gcc.gnu.org/wiki/gcc-steering-committee
 * GCC (GNU Toolchain) dev room at FOSDEM 2026, January 31-Februrary
1, Brussels, Belgium - Calls for proposals
  ** https://inbox.sourceware.org/gcc/875xparmhn.fsf@kataplop.net/
 * Updated Getting started page on the GCC wiki (GCC 101)
  ** https://gcc.gnu.org/wiki/GCC101
  ** Base tutorial started and hope others can add to it for the 200 series
  ** Other projects in the toolchain should have a similar page too

GCC discussion:
 * Question about conditional functional unit reservation
  * https://inbox.sourceware.org/gcc/aQvprPLNQTDvdcGK@dalaran/
* Change the default C++ dialect to gnu++20?
 * https://inbox.sourceware.org/gcc/aQj1tKzhftT9GUF4@redhat.com/

GCC commits:
 * SSA immediate use iterator checking
  ** New checking for FOR_EACH_IMM_USE_STMT
 * c: GNU extension allowing compound literals of variable size
 * RISC-V: Fix the ABI of empty unions and zero length array in struct
 * Ada/GNAT 30 patch sync

GCC bugzilla stats
 * 106 new issues filed
 * 106 issues closed

glibc commits:
 * AArch64: Fix instability in AdvSIMD sinh/tan
 * Add C23 long_double_t, _FloatN_t
 * Support assert as a variadic macro for C23

glibc discussion:
 * C23 addition of once_flag to <stdlib.h>
   ** https://inbox.sourceware.org/libc-alpha/CAH6eHdT65txghU9_eF+zWykTt86o__4pwJsA0PC8kkM2aDcs5A@mail.gmail.com/T/#m233b3244f2981dffb81772f99a90fab9137d5d01

binutils/gdb commits:
 * new gprofng maintainers

Re: GNU Tools Weekly News Week 11 (November 9, 2025)

[GNU Tools weekly via Gdb]

On Thu, Nov 13, 2025 at 4:43 PM GNU Tools weekly
<gnutoolsweekly@gmail.com> wrote:
>
> Sorry for being late (stuff happened)
>
> GNU Tools Weekly News Week 11 (November 9, 2025)
>
> General/big GNU toolchain news (including sourceware news):
>  * GCC stage 1 ends Nov 14th this week!

Small correction, GCC stage 1 ends Monday Nov 17th rather than Friday
Nov 14th. The difference is minor because of the weekend.

>  * new gprofng maintainers in binutils
>   ** Claudiu Zissulescu and Jose E. Marchesi, congrats
>  * The GCC Steering Committee has a wiki page detailing their mission
> and current requests are listed
>    ** https://gcc.gnu.org/wiki/gcc-steering-committee
>  * GCC (GNU Toolchain) dev room at FOSDEM 2026, January 31-Februrary
> 1, Brussels, Belgium - Calls for proposals
>   ** https://inbox.sourceware.org/gcc/875xparmhn.fsf@kataplop.net/
>  * Updated Getting started page on the GCC wiki (GCC 101)
>   ** https://gcc.gnu.org/wiki/GCC101
>   ** Base tutorial started and hope others can add to it for the 200 series
>   ** Other projects in the toolchain should have a similar page too
>
> GCC discussion:
>  * Question about conditional functional unit reservation
>   * https://inbox.sourceware.org/gcc/aQvprPLNQTDvdcGK@dalaran/
> * Change the default C++ dialect to gnu++20?
>  * https://inbox.sourceware.org/gcc/aQj1tKzhftT9GUF4@redhat.com/
>
> GCC commits:
>  * SSA immediate use iterator checking
>   ** New checking for FOR_EACH_IMM_USE_STMT
>  * c: GNU extension allowing compound literals of variable size
>  * RISC-V: Fix the ABI of empty unions and zero length array in struct
>  * Ada/GNAT 30 patch sync
>
> GCC bugzilla stats
>  * 106 new issues filed
>  * 106 issues closed
>
> glibc commits:
>  * AArch64: Fix instability in AdvSIMD sinh/tan
>  * Add C23 long_double_t, _FloatN_t
>  * Support assert as a variadic macro for C23
>
> glibc discussion:
>  * C23 addition of once_flag to <stdlib.h>
>    ** https://inbox.sourceware.org/libc-alpha/CAH6eHdT65txghU9_eF+zWykTt86o__4pwJsA0PC8kkM2aDcs5A@mail.gmail.com/T/#m233b3244f2981dffb81772f99a90fab9137d5d01
>
> binutils/gdb commits:
>  * new gprofng maintainers

GNU Tools Weekly News Week 12 (November 16, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 12 (November 16, 2025)

Release updates for GNU toolchain:
 * GCC stage 1 ends today Nov 16th, 2025 (EoD, pick your timezone)!!!
Get your patches posted.
 * GNU Binutils release 2.45.1 happened
  * Congratulations to Sam as being his first binutils release
  * https://inbox.sourceware.org/binutils/20251112230051.vv6tzgigvflgap2o@illithid/T/#m6fbd495b1fe90ebe6dd651c9506b1d8580da3ec2
 * GDB 17.1 release update -- 2025-11-15
  * https://inbox.sourceware.org/gdb-patches/aRjYCpnAbDu2jcee@adacore.com/T/#u
 * GDB 17.1 release update -- 2025-11-02 (sorry for missing this in
last week's newsletter):
  * https://inbox.sourceware.org/gdb-patches/041c6048-4289-42b9-9441-332bd9e2c007@simark.ca/T/#t


General/big GNU toolchain news (including sourceware news):
 * The GCC Steering Committee has a wiki page detailing their mission
and current requests are listed
    ** https://gcc.gnu.org/wiki/gcc-steering-committee
 * Sourceware Open House last Friday - service upgrades, migration and isolation
  * https://inbox.sourceware.org/gcc/e6a8b2f10c311bcdd750b30f0ed53826f16c4da2.camel@klomp.org/T/#u
  * https://sourceware.org/sourceware-wiki/Migration2025/
  * https://sourceware.org/sourceware-wiki/OpenHouse2025/
  * Notes posted:
https://inbox.sourceware.org/gcc/20251116230040.GF3503@gnu.wildebeest.org/
 * Claudio Bantaloukas appointed GCC - Forge integration maintainer
  * https://gcc.gnu.org/wiki/ForgeExperiment - moving to production
(see sourceware open house too)
  * https://inbox.sourceware.org/gcc/CAGWvnymATGivAnFf35wp=5tGYUMQydCv=57bupnJ3zXYSwGYFw@mail.gmail.com/T/#u
 * Reminder: GCC (GNU Toolchain) dev room at FOSDEM 2026, January
31-Februrary 1, Brussels, Belgium - Calls for proposals
  ** https://inbox.sourceware.org/gcc/875xparmhn.fsf@kataplop.net/
* Instructions on how to run BPF selftests via a chroot/VM
 * https://gcc.gnu.org/wiki/BPFBackEnd#BPF_selftest_chroot_environment_setup

GCC discussion:
 * Automated patch emails for Rust front-end commits
  * https://inbox.sourceware.org/gcc/DE7VOPYUI6Y2.3L9HNH299NQYW@kataplop.net/T/#mfe00ba936d99a4ef1358f2023e61f40dfd55c19e
* Permitting malloc/alloc_size attributes for span-returning
allocation functions
  * https://inbox.sourceware.org/gcc/CANp29Y4S3MOBENGEhQYh9sE-sO72GBNX-BhbU08wq_Z8K=C77w@mail.gmail.com/T/#m157d4b76092bb67fa9c468741ee6fd8ba88cca19
  * Related LLVM pull request: https://github.com/llvm/llvm-project/pull/165433
 * Obfuscate the vtpr inside polymorphic objects
  * https://inbox.sourceware.org/gcc/CALtZhhNCCHyaneuqSZ0EbHrqhGC5joWXi-T-A_tNG7utj2H5vA@mail.gmail.com/T/#m5540f35707cb78513cc27718c5e1b1789de8473e
 * The mystery of lang.opt
  * https://inbox.sourceware.org/gcc/20251111001233.74e28ef41cc903579214c3de@schemamania.org/
 * Error with 'make install -j24'
  * https://inbox.sourceware.org/gcc/41082d3c-a8b2-7bca-a95f-7bdf8958afdf@redhat.com/T/#m2cbd8f32f188841a035419fb7c79c733d934fd92
 * Prevent copy propagation from a non-frame related insn to a frame
related insn
  * https://inbox.sourceware.org/gcc/aRoBjqvbMFRD_YB_@gate/T/#mb83bdd091173f75ed1b2fbc96ef2717cf4584c1b

GCC commits:
 * Add experimental SARIF JSON-RPC notifications for IDEs
 * libstdc++: Implement final wording of C++26 P3778R0 - type_order
 * c++, libcpp: Implement CWG3053 (likely and unlikely keyword #undef/#define)
 * c++: Implement C++26 P3920R0 - Wording for NB comment resolution on
trivial relocation
 * Ada/GNAT sync: 18 patches
 * Merge remove_forwarder_block_with_phi into remove_forwarder_block patch set
  * ~2% improvement to leela_r in spec 2017 with LTO
 * AArch64: Support C/C++ operations on svbool_t
 * Solaris: Require binutils 2.30+ on Solaris

GCC bugzilla stats
 * 89 new issues filed
 * 57 issues closed

glibc commits:
 * linux: Add mseal syscall support
 * Change fromfp functions to return floating types following C23 (N2548)

glibc discussion:
 * decimal floating point: libdfp into glibc?
  * https://inbox.sourceware.org/libc-alpha/2025Nov10.1025.scs.0002@tanqueray.local/T/#u

binutils/gdb commits:
 * PowerPC: Add support for RFC02660 - Context Switch Instruction
 * PowerPC: Support for Controlled Cluster Memory (RFC02689)
 * Mark Pascal as case-insensitive (gdb)

binutils discussion:
 * More compact SFrames through deduplication
  * https://inbox.sourceware.org/binutils/4199DC9E-2627-48CA-8BA7-6483FD73ABDA@gmail.com/

gdb discussion:
 * GDB-JIT: why would my 'unwind' not be invoked on crash
  * https://inbox.sourceware.org/gdb/CACTzTFDrgKYYoNWj8yFhaTo217cdnMu17+Gt2QtR8F6Ud73atA@mail.gmail.com/T/#m9cbdef02339305a97f4d62cf8d4385dcb9521d9c
 * GDB 15/16 crashing in add_thread_silent()
  * https://inbox.sourceware.org/gdb/0acb00caa135109f9994faaf97753b0024af8072.camel@gnu.org/T/#m7cedad2ab45e06f8cfa895c1ab074816738ee8f0
 * Mark Pascal as case-insensitive
  * Turns out there is a dwarf2 marker but unknown if it is usable here
  * https://inbox.sourceware.org/gdb-patches/alpine.DEB.2.21.2511150214370.47194@angie.orcam.me.uk/T/#m59b6f141a65e53da1385075716dbbe538a118939
 *

GNU Tools Weekly News Week 13 (November 23, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 13 (November 23, 2025)

Release updates for GNU toolchain:
 * GDB 17.1 release update -- 2025-11-22
  * https://inbox.sourceware.org/gdb-patches/aSE5Jqxw39FQXNJi@adacore.com/T/#u
 * GCC 16.0.0 Status Report (2025-11-17), Stage 3 in effect NOW
  * https://inbox.sourceware.org/gcc/4s6800n3-43n8-n0qq-2105-2n643027q69n@fhfr.qr/T/#u

General/big GNU toolchain news (including sourceware news):
 * The GCC Steering Committee has a wiki page detailing their mission
and current requests are listed
  ** https://gcc.gnu.org/wiki/gcc-steering-committee
 * Improving GCC Buffer Overflow Detection for C Flexible Array
Members (Oracle blog)
  * https://lwn.net/Articles/1047547/
  * https://blogs.oracle.com/linux/improving-gcc-buffer-overflow-detection-for-c-flexible-array-members
* Algol 68 Front End for GCC has been approved by the GCC SC for
inclusion in the GCC trunk
 * https://inbox.sourceware.org/gcc/CAGWvnymiaXpikeXM6yNoK5kgs1u07z1dxy1HemJhMBAGDSKDCg@mail.gmail.com/T/
 * With a new set of patches posted:
https://gcc.gnu.org/pipermail/gcc-patches/2025-November/701589.html
* LLVM 2025 US dev conf videos released
 * https://www.youtube.com/@LLVMPROJ/videos
* Reminder: GCC (GNU Toolchain) dev room at FOSDEM 2026, January
31-Februrary 1, Brussels, Belgium - Calls for proposals
  ** https://inbox.sourceware.org/gcc/875xparmhn.fsf@kataplop.net/
* gccrs October 2025 Monthly report
 * https://inbox.sourceware.org/gcc/97702866-8e34-4366-a711-92b42643da78@embecosm.com/T/#u

GCC commits:
 * aarch64: Add preserve_none attribute support (forgot from last week)
 * Code changes to be able to compile GCC with -std=c++20
 * Add testcases for CWG3045 and CWG3061 (C++26 expansion statements
clarifications; already implemented)
 * Add testcases for CWG3079 (anonymous union clarifications; already
implemented)
 * 14 GCC Rust merge
 * 17 and 13 commit Ada merges
 * Implement C++ DR1670 and LWG4468
 * libstdc++: Implement proposed resolution of LWG4477
 * x86: Add AVX10.1, AVX10.2, APX_F and MOVRS to Nova Lake
 * Support the Wild linker with -fuse-ld=wild
 * middle-end: add target hook for isel
  * Can be used by the target to optimize some gimple sequences into
other sequences right before expansion to RTL (usually for say target
intrinsics but could be used otherwise)
* ipa: Remove LTO requirement for builtin callback carriers
 * e.g. CCP into -fopenmp outlined regions don't need -flto to work any more
* Enable LRA for pa-risc (hppa) by default
* libstdc++: Implement LWG 4406 and LWG 3424 for std::optional and std::expected

 GCC bugzilla stats
 * 110 new issues filed
 * 92 issues closed

glibc commits:
 * math: Remove ldbl-96 fma implementation
  * 2-4x improvement on modern HW
 * Remove support for TX lock elision of pthread mutexes (x86, s390 and ppc)
  * https://lwn.net/Articles/534758/ was about when this support was added
 * Sync acosh and atanh from CORE-MATH
 * Implement C23 const-preserving standard library macros

binutils/gdb commits:
 * Enabling of FPMR register support for AArch64 in
gdb/gdbserver/corefile on Linux
  * FP control register for FP8 support
 * ld:Treat symbols with version index 0 as unversioned
 * New tool for converting gmon.out file (old style) to gprofng experiments

binutils discussion:
 * `## __VA_ARGS__` usage (can be used) in libctf
 * https://inbox.sourceware.org/binutils/875xb052db.fsf@esperi.org.uk/T/#m268d35f226de94550b9cfa01a9d61f013d11ff0a

GNU Tools Weekly News Week 14 (November 30, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 14 (November 30, 2025)

Release updates for GNU toolchain:
 * GDB 17.1 release update -- 2025-11-29
  * https://inbox.sourceware.org/gdb-patches/aSwsj%2Flh7Nb5Qc5k@adacore.com/T/#u

General/big GNU toolchain news (including sourceware news):
 *  The GCC Steering Committee has a wiki page detailing their mission
and current requests are listed
   ** https://gcc.gnu.org/wiki/gcc-steering-committee
 * Reminder: GCC (GNU Toolchain) dev room at FOSDEM 2026, January
31-Februrary 1, Brussels, Belgium - Calls for proposals
  ** The deadline is tomorrow December 1, 2025
  ** https://inbox.sourceware.org/gcc/87jyzizitk.fsf@euclid.schwinge.ddns.net/T/#m7f70eb7b8870e94935003b629d822747ef012ff0
 * GDB: Christina Schimpe added as a x86-64 and i386 maintainer
 * Office Hours for the GNU Toolchain was held Thursday 2025-11-27
  * Notes can be found at https://gcc.gnu.org/wiki/OfficeHours
  * Next office hours is 2025-12-18 @ 1100h EST5EDT
* Sourceware HW service migration successfully happened Friday 2025-11-28
  * Please report if you notice anything wrong to overseers@sourceware.org
 * The Algol 68 front-end for GCC was merged in
 * GCC's C++ front-end now defaults to C++20 if not supplied a -std= option

GCC commits:
 * The Algol 68 front-end
 * Change the default C++ dialect to gnu++20
 * c: Add _Maxof and _Minof operators
 * New g++ option --compile-std-module to compile the std module
without any extra invocation of gcc
 * RISC-V profiles support was removed from GCC 16 due to issues
 * aarch64: Enable parsing of user-provided AArch64 CPU tuning parameters
 * aarch64: Better code generation for SVE/Adv. SIMD early break vectorization
 * libstdc++: Implement LWG 4366 for std::expected comparisons
 * libstdc++: Implement LWG 4370 for std::optional comparisons
 * gccrs: 12 commit sync
 * ada: 15 commit sync
 * RISC-V: Add Andes 23 and 45 series pipeline descriptions
 * RISC-V: Add SpacemiT extension xsmtvdot

GCC discussion:
 * decimal floating point
  ** Moved from glibc discussion
  * https://inbox.sourceware.org/gcc/CAH6eHdRpXs3OKMunk4E6iiGim7D7iK-oGoywVapUSBksCbFgAg@mail.gmail.com/T/#m2e0d4dd4a417da002fbbc32a50486d1ae6f9d1ca
 * Refining _DEFAULT_SOURCE and _GNU_SOURCE
  ** Also glibc discussion
  * https://inbox.sourceware.org/gcc/8926a67d-1c51-4884-b98e-a35f57bc22f2@redhat.com/T/#m796bfe7a1c918d55a87995df11747975d71fcba2


GCC bugzilla stats
 * 113 new issues filed
 * 97 issues closed

glibc commits:
 * math: New generic fmaf and fma implementation
  ** related to last week's `Remove ldbl-96 fma implementation` commit
  ** Also see https://zatrazz.substack.com/p/the-recent-glibc-fma-optimization
 * math: Sync atanh from CORE-MATH
 * Define C23 header version macros
 * stdlib: Remove longlong.h (usage and header)

glibc discussion:
 * See gcc discussion too
 * glibc SFrame support for newer versions
  * https://inbox.sourceware.org/libc-alpha/lhujyzb8a0t.fsf@oldenburg.str.redhat.com/T/
 * Is hppa64-linux-gnu an supported target?
  * https://inbox.sourceware.org/libc-alpha/CAMe9rOqVupum3dknCOpTNYgmBn6=yHVgCjh+kARqph5ezCWXrw@mail.gmail.com/T/

binutils/gdb commits:
 * Obsolete support for Solaris < 10

gdb discussion:
 * What bugs/issues should I work on?
  * https://inbox.sourceware.org/gdb/CAB9PnCrXQZ0hzJXnTK3P7iXRs45bqyHEYsdfeXVhg-eejArp5A@mail.gmail.com/T/#u

GNU Tools Weekly News Week 15 (December 7, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 15 (December 7, 2025)

Release updates for GNU toolchain:
 * GDB 17.1 release next weekend (Sat-Sun Dec 13-14)
  * https://inbox.sourceware.org/gdb-patches/aTWF5TvHxYpgR2kp@adacore.com/T/#u
 * glibc 2.43 release planning
  * https://inbox.sourceware.org/libc-alpha/f8fd8390-c481-4c3b-a270-31df08129bf0@redhat.com/T/
  * https://sourceware.org/glibc/wiki/Release/2.43

General/big GNU toolchain news (including sourceware news):
 *  The GCC Steering Committee has a wiki page detailing their mission
 and current requests are listed
  ** https://gcc.gnu.org/wiki/gcc-steering-committee
 * What’s New in Oracle Solaris 11.4 SRU 87
  ** GCC 15 included now
  ** https://blogs.oracle.com/solaris/whats-new-in-oracle-solaris-11-4-sru-87




GCC commits:
 * Fixes for aarch64 mingw support (long double and varargs)
 * MIPS: add support for mips allegrex cores
 * GCC rust: 12 patch sync
 * Ada: 7 patch sync
 * Sync libsanitizer from upstream
 * amdgcn: Implement Managed Memory
 * libstdc++: implement P3044R2
 * libstdc++: Convertibility of rank == 0 layouts, LWG4272.
 * libstdc++: Implement P2655R3
 * Add -ffuse-ops-with-volatile-access (enabled for x86 by default)
 * OpenMP: C/C++ parser support for dyn_groupprivate
  ** Fortran support was earlier

GCC discussion:
 * injected class name vs. constructor reference (with templates)
  ** https://inbox.sourceware.org/gcc/280584618.373279.1765122885363@connect.xfinity.com/T/#u
 * "A: a new bug to old plain C"
  ** https://inbox.sourceware.org/gcc/CAKBShRQUB-YPq48UO_heX67j=-_2jpYWuxJKig+RC6B-mP5PJA@mail.gmail.com/T/#t
 * Bug in identical code folding?
  ** https://inbox.sourceware.org/gcc/aa96c8d9-e2b4-46f5-aa43-73e1fded3804@gjlay.de/T/#t
 * Question about ifcvt optimization
  * https://inbox.sourceware.org/gcc/CAPt2h2YgxzSB+N8jmrjEW7yLr1+xXGj-EPuygVgEn65VwqydPg@mail.gmail.com/T/#u


GCC bugzilla stats
 * 113 new issues filed
 * 79 issues closed


glibc commits:
 * aarch64: Optimise AdvSIMD log1pf, logf, log2f, log10f, log1p, log,
log2, log10
 * aarch64: Optimise AdvSIMD acoshf, asinhf, atanhf
 * aarch64: Implement AdvSIMD and SVE rsqrt(f) routines

glibc discussion:
 * Deprecation of s390-32 in glibc
  * https://inbox.sourceware.org/libc-alpha/b1dfec5f-54d1-49e8-a14d-b02bd79ee4d3@linux.ibm.com/T/

binutils/gdb commits:
 * gdb/guile: remove support for Guile < 2.2
 * Add AMD znver6 processor support

GNU Tools Weekly News Week 16 (December 14, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 16 (December 14, 2025)

Release updates for GNU toolchain:
 * GDB 17.1 release update -- Delayed to next weekend (Sat-Sun Dec 20-21)
  * https://inbox.sourceware.org/gdb-patches/aT03WfMQ8Z1a4IUP@adacore.com/T/#u
 * Soft freeze for the glibc-2.43 release
  * https://inbox.sourceware.org/libc-alpha/CAMAf5_cO94nwG8nuF9N7bMhAgGO0nX=5u7wC_PrjFXW79kQ7zQ@mail.gmail.com/T/

General/big GNU toolchain news (including sourceware news):
 *  The GCC Steering Committee has a wiki page detailing their mission
and current requests are listed
   ** https://gcc.gnu.org/wiki/gcc-steering-committee
 * GNU toolchain office hours: Asia friendly timezone starting this week:
  * https://inbox.sourceware.org/gcc/2d9de3ff28174576805614fb8b14d253feaf644c.camel@klomp.org/T/#u
 * GNU toolchain office hours coming up this week: 2025-12-18 @ 1100h EST5EDT
  * https://gcc.gnu.org/wiki/OfficeHours
* Sourceware Open Office happened last Friday 2025-12-12
 * Notes will be posted soon

GCC commits:
 * aarch64: Add support for C1 cores
 * RISC-V: Pragma target now supported
 * LoongArch: Introduce LoongArch32 target
 * c++/modules: #include <vector> -> import <bits/stdc++.h>
 * Cleanup/Fix option documentations for many targets
 * ch: Improve copy header when the bbs are predicated as non-executed

GCC discussion:
 * pointer comparison in GIMPLE
  * https://inbox.sourceware.org/gcc/87fr9hsl0l.fsf@oracle.com/T/
 * Deprecating IA64 and selective scheduling
  * https://inbox.sourceware.org/gcc/CAHtyXDcJX5B5xrQbi5LpHkjS_q-CwzQfYoHSp0h8QH7jPc_-fw@mail.gmail.com/T/
 * Requiring a BZ account as part of commit access process
  * https://inbox.sourceware.org/gcc/CADzB+2mVmpFZ2qnWF5hRH9gQFrfeAJN+tibazA1sRAYQhCiRhg@mail.gmail.com/T/
 * Use of LLM for patches
  * https://inbox.sourceware.org/gcc/CALvbMcDiyuq2UkQF57kD9s=6P937jLkrFKn5HzvjNgRW-SmNow@mail.gmail.com/T/

GCC bugzilla stats
 * 80 new issues filed
 * 52 issues closed


glibc commits:
 * malloc: Enable 2MB THP by default on Aarch64

glibc discussion:
 * Deprecation of s390-32 in glibc
  * continued
  * https://inbox.sourceware.org/libc-alpha/b1dfec5f-54d1-49e8-a14d-b02bd79ee4d3@linux.ibm.com/T/

binutils/gdb commits:
 * LoongArch: Add support for LoongArch32 to binutils
 * aarch64: Add support for FEAT_LSCP

GNU Tools Weekly News Week 17 (December 21, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 17 (December 21, 2025)

Release updates for GNU toolchain:
 * GDB 17.1 was released
  ** https://inbox.sourceware.org/gdb/announce.20251220053009.F3797804ED@takamaka.gnat.com/T/#u
 * newlib: Holidays and Yearly Snapshot (news)
  * https://inbox.sourceware.org/newlib/CAOox84srVz_qVyFgSq0r1C=U9KmbOpB6qJ+c2wLke=tcxZzpAg@mail.gmail.com/T/

General/big GNU toolchain news (including sourceware news):
 * ProPolice (SSP [stack protector]) history and integration story into GCC
  * http://miod.online.fr/software/openbsd/stories/propolice.html
 *  Blog posting about Rust GCC backend - Why and how.
   * https://blog.guillaume-gomez.fr/articles/2025-12-15+Rust+GCC+backend%3A+Why+and+how
 * GCC RTL, GIMPLE & MD syntax highlighting for VSCode (forgot about
this last week sorry about that)
  * https://www.reddit.com/r/Compilers/comments/1phcueo/gcc_rtl_gimple_md_syntax_highlighting_for_vscode/
 * Both GNU toolchain office hours happened last week
  * Notes from both meetings can be found at
https://gcc.gnu.org/wiki/OfficeHours
 * FOSDEM 2026: GCC (GNU Toolchain) dev room schedule was posted
  * https://fosdem.org/2026/schedule/track/gcc-gnu-toolchain/
 * GNU toolchain related talks at LPC (Linux Plumbers Conference):
   * GCC BPF:  https://www.youtube.com/watch?v=BHhECeeg87k
   * Adding C library wrappers for all Linux syscalls (glibc):
https://www.youtube.com/watch?v=BPfITyxs0w
 * More Forge, More Actions, More Infrastructure
  * https://inbox.sourceware.org/gcc/20251222022445.GC8131@gnu.wildebeest.org/T/

GCC commits:
 * analyzer: reimplement supergraph to eliminate function_point and
stmt_finder (missed from last week)
 * vect: allow the vectorizer to handle uncounted loops
   * This is mostly used in connection with early break
 * aarch64: Add cortex-a320 core
 * Generate Algol68 frontend online docs
 * aarch64: Add support for memetag-stack sanitizer using MTE insns
 * libstdc++: Implement P2408R5 C++20 iterators as inputs to STL algos
 * x86: Add AMD znver6 processor support
 * GCCrs: 13 patch sync
 * aarch64: Add new target options for 2024 Architecture Extension and Armv9.6-A
 * configure: Support disabling specific languages

GCC discussion:
 * Regarding current state of graphite in GCC
  * https://inbox.sourceware.org/gcc/907df38903e26fcc5d18dcd591a81f7768a1ce26.camel@linux.ibm.com/T/
 * Requiring a BZ account as part of commit access process (continued)
  * https://inbox.sourceware.org/gcc/2fe70219-52ae-4fca-b741-3a20fe062b95@redhat.com/T/#m4b6151ac29053d8c06e1b06bc605005b06721678

GCC bugzilla stats
 * 126 new issues filed
 * 84 issues closed

glibc commits:
 * Deprecate s390-linux-gnu (31bit)
 * malloc: Remove fastbin

binutils/gdb commits:
 * aarch64: Add support for new BTI <target> "r"

GNU Tools Weekly News Week 18 (December 28, 2025)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 18 (December 28, 2025)
Last Newsletter of the year
Quiet last week due to the Winter holidays
Happy Holidays to all; Merry Christmas to the ones who celebrate; and
Happy New years to all
May 2026 be the wonderful year for GNU toolchain

Release updates for GNU toolchain:
None

General/big GNU toolchain news (including sourceware news):
* binutils gdb snapshots, don't create xz src-release archives, used gz
  * https://inbox.sourceware.org/gdb/20251222225243.387371-1-mark@klomp.org/T/

GCC commits:
 * gccrs: 12 patch sync
 * ifcvt improvements for `a ? b OP c: b`; helps RISC-V
 * AutoFDO improvements
 * aarch64: Add support for fp8 SME2 intrinsics

GCC discussion:
 * Generation of Make Dependencies for C++ Modules
  * https://inbox.sourceware.org/gcc/87v7hqhe6r.fsf@oracle.com/T/

GCC bugzilla stats
 * 79 new issues filed
 * 42 issues closed

glibc commits:
 * LoongArch: Use generic __builtin_trap in abort

binutils/gdb commits:
 * aarch64: Add FEAT_MOPS_GO instructions
 * AArch64: Add FEAT_SVE2p3, FEAT_SME2p3, FEAT_F16F32DOT,
FEAT_F16F32MM instructions
 * AArch64 v9.7 extensions: FEAT_F16MM and FEAT_SVE_B16MM
 * Some libsframe improvements (start of SFrame V3 support)

GNU Tools Weekly News Week 19 (January 5, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 19 (January 5, 2026)
Happy new years all. a real quiet week entering the new years

Release updates for GNU toolchain:
 * Freeze for glibc-2.43, machine testing
  * https://inbox.sourceware.org/libc-alpha/2395324.ElGaqSPkdT@noumea/T/#u

General/big GNU toolchain news (including sourceware news):
 * In case you missed it; GNU toolchain 2025 year in a review
  * https://inbox.sourceware.org/gcc/CAHt=NyM_FreJL-n9h91opbNQB=c4JgkJAb8t8-LwMvYUAOAzgA@mail.gmail.com/T/#u
 * Beyond Syntax: Introducing GCC Workbench for VSCode/VSCodium
  * See https://www.reddit.com/r/gcc/comments/1q3n0xb/beyond_syntax_introducing_gcc_workbench_for/?share_id=_BWRJXbFAsZ_oQKklfKxJ
  * https://github.com/regalloc/gcc-workbench

GCC commits:
 * Add support for using picolibc

GCC discussion:
 * Generation of Make Dependencies for C++ Modules (continued)
  * https://inbox.sourceware.org/gcc/aVHsijZHkzcDwtt7@rotor/T/

GCC bugzilla stats
 * 68 new issues filed
 * 39 issues closed

glibc commits:
 * no notable commits

binutils/gdb commits:
 * no notable commits

GNU Tools Weekly News Week 20 (January 11, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 20 (January 11, 2026)

Release updates for GNU toolchain:
 * GCC stage 4 starts January 12, 2026

General/big GNU toolchain news (including sourceware news):
 * Andrew Pinski was appointed as a global reviewer for GCC
  * https://inbox.sourceware.org/gcc/8a1d0ad6-f2c5-4814-83bb-72508f1e9927@gmail.com/
 * Sourceware held their open office Friday January 8, 2026
  * notes from it:
https://inbox.sourceware.org/gcc/20260111231157.GO20684@gnu.wildebeest.org/T/#t

GCC commits:
 * ipa-cp: Move decision to clone for all contexts to decision stage
 * ipa-cp: Multiple sweeps over the call-graph in the decision stage
 * Ada: 45 patch sync
 * aarch64: Add support for FEAT_F8F32MM, FEAT_F8F16MM, and FEAT_SVE_F16F32MM.
 * aarch64: Add support for FEAT_PCDPHINT atomic_store intrinsics and
__pldir intrinsic
 * LTO: Improve handling of toplevel inline-asm (needed for linux kernel)

GCC discussion:
 * Mailing list bpf@gcc.gnu.org
  * https://inbox.sourceware.org/gcc/87bjj3rowl.fsf@gnu.org/T/#u
 * Testing if an expression has side effects at compile time
  * https://inbox.sourceware.org/gcc/87h5sun2ub.fsf@tromey.com/T/#t

GCC bugzilla stats
 * 152 new issues filed
 * 114 issues closed

glibc commits:
 * no notable commits due to the release freeze

binutils/gdb commits:
 * aarch64: Add FEAT_NV3, FEAT_SRMASK2,  FEAT_TPS and FEAT_TPSP system registers

GNU Tools Weekly News Week 21 (January 18, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 21 (January 18, 2026)

Release updates for GNU toolchain:
 * GCC 16.1.0 release status, stage 4 is now in effect
  * https://inbox.sourceware.org/gcc/8rq8os16-o468-p284-11nr-6pn9q0rnrqon@fhfr.qr/T/#u
 * binutils 2.46 release branch is delay until next weekend
  * https://inbox.sourceware.org/binutils/0a2364be-009d-4cb4-ad0e-79c0bc4e195a@oracle.com/T/#ma153c37b55becb027585f2a27a78782d7f81d758

General/big GNU toolchain news (including sourceware news):
 * gccrs December 2025 Monthly report
  * https://inbox.sourceware.org/gcc/34c623b8-6c0d-41c9-921a-613527a64e09@embecosm.com/T/#u
 * GNU toolchain office hours (Asia and Americas/Europe) was held last Thursday
  * Notes can be found at https://gcc.gnu.org/wiki/OfficeHours
 * Sourceware infrastructure updates for Q4 2025
  * https://inbox.sourceware.org/gcc/20260113001906.GM7119@gnu.wildebeest.org/T/#u

GCC commits:
 * gccrs: 22 patch sync
 * c++: C++26 Reflection
 * lto: toplevel inline-asm fixes/improvements
 *

GCC discussion:
 * fate of libxml2 in gcc
  * https://inbox.sourceware.org/gcc/d568aa1c-ddb7-4899-a1c7-fe9d0a088654@debian.org/T/#mbcb36fb29a1728ece2ebada48afe06b650cc3a59
 *

GCC bugzilla stats
 * 141 new issues filed
 * 120 issues closed

glibc commits:
 * Fixes for CVE-2026-0915 and CVE-2026-0861
 * math: Sync acosh, atanh, and asinh from CORE-MATH

binutils/gdb commits:
 * Sframev3 support for binutils
 * aarch64: Add support for FEAT_CMH
 * aarch64: Add support for MLBI system instructions
 * aarch64: Add support for FEAT_MTETC
 * gdb/dwarf: remove support for DWP v1
 *

GNU Tools Weekly News Week 22 (January 25, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 22 (January 25, 2026)

Release updates for GNU toolchain:
 * GNU C Library version 2.43 was released
  * https://inbox.sourceware.org/libc-alpha/13932477.uLZWGnKmhe@pinacolada/T
 * 2.46 branch has now been created
  * https://inbox.sourceware.org/binutils/87zf62asxe.fsf@redhat.com/T

General/big GNU toolchain news (including sourceware news):
 * GCC GSoC 2026: Call for project ideas and mentors
  * https://inbox.sourceware.org/gcc/0374ff71371cc3161db30d11578874be607d2bdc.camel@redhat.com/T/

GCC commits:
  * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * s390: Deprecate -m31
 * Many documentation option improvements
 * testsuite fixes/improvements on running cross

GCC discussion:
 * "global opt framework" entry in MAINTAINERS
  * https://inbox.sourceware.org/gcc/3c24d501-f50a-4fe7-a089-3e02dd5be28f@gmail.com/T/

GCC bugzilla stats
 * 136 new issues filed
 * 94 issues closed

glibc commits:
 * posix: Reset wordexp_t fields with WRDE_REUSE: CVE-2025-15281

binutils/gdb commits:
 * aarch64: Add bigobj support to AArch64 COFF
 * aarch64: Object Attributes v2 support (binutils)
 * gdb: Add aarch64-windows support
 * aarch64: Add support for FEAT_TLBID feature
 * aarch64: Add -march=armv9.7-a option

GNU Tools Weekly News Week 23 (February 1, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 23 (February 1, 2026)

Release updates for GNU toolchain:

General/big GNU toolchain news (including sourceware news):
 * FOSDEM was held Saturday/Sunday
  * https://www.fosdem.org/2026/schedule/track/gcc-gnu-toolchain/
  * videos are located in https://video.fosdem.org/2026/ud6215/
 * glibc transition away from sourceware to CTI hosting site (Linux Foundation)
  * https://inbox.sourceware.org/libc-alpha/aXza11xOt8WablUA@arm.com/T/#me3690e18d4836c08c6e24cd1c03956ecab2ee062

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * c++, contracts: C++26 base implementation as per P2900R14.
 * c++: Implement part of CWG3044
 * C/C++: Better notification if misused a function like macro (e.g.
using assert with the wrong number of arguments)
 * libstdc++/regex: Make DFS executor non-recursive

GCC discussion:
 * Does GCC record optimization information into binary file?
  * https://inbox.sourceware.org/gcc/AFC6461E-C878-45E4-B71A-405E21B74599@oracle.com/T/#m59e008b774df18ee4c860408b2efdca0bc0fb5d6

GCC bugzilla stats
 * 101 new issues filed
 * 96 issues closed

glibc commits:
 *

binutils/gdb commits:
 *

gdb discussion:
 * gdb support for SME-without-SVE ?
  * https://inbox.sourceware.org/gdb/CANnS9rtKj5oDZQ6YuB=rP6YGuC38Gff=TckhDqwaof=A+ot4=w@mail.gmail.com/T/#md7ff6ac528c3b698f3239766eed29f902cc374e1
 *

binutils discussion:
 * More compact SFrames through deduplication
  * https://inbox.sourceware.org/binutils/20260126111821.714eccd1@gandalf.local.home/T/#m6f74937a28ccc58a4c4887092479f089d4126851

GNU Tools Weekly News Week 24 (February 8, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 24 (February 8, 2026)

Release updates for GNU toolchain:
 * binutils 2.46 was released
  * https://inbox.sourceware.org/binutils/87fr7bgznh.fsf@Gerda.invalid/T/#t
 * gcc 16.0 regression status
  * P1: 29
  * P1+P2+P3 total: 860

General/big GNU toolchain news (including sourceware news):
 *

GCC easy issue to tackle of the week:
 * New feature this week, This is a highlight of one bug report that
would be a good issue for someone new to GCC to fix
  * If others want to sponsor an issue please let me know and I can
add that one for the week (gdb, binutils and glibc issues welcome too)

* lower mempcpy to memcpy when result is unused
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93556
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue


GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * doc: Move parameter docs to the GCC internals manual
 * Removal of CONST_CAST and related macros (C++ification cleanup)

GCC discussion:
 *

GCC bugzilla stats
 * 118 new issues filed
 * 136 issues closed

glibc commits:
 * math: Order signed zeros in f{max,min}{,mag}{f,l,f128}
 * math: Optimize f{max,min}imum{,_num,_mag,_mag_num}{f,l,f128}
 * AArch64: Optimize memcpy for Kunpeng 950 processor
 * AArch64: Add if('fastmath') to math-vector-fortran.h

binutils/gdb commits:
 * PowerPC: Support for Elliptic Curve Cryptography Instructions (RFC02669)
 * [gold] Note gold and dwp deprecation in NEWS
 * bpf: add may_goto instruction

gdb discussion:
 *
binutils discussion:
 *

GNU Tools Weekly News Week 25 (February 15, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 25 (February 15, 2026)

Release updates for GNU toolchain:
 * gcc 16.0 regression status
  * P1:                       25            -4
  * P1+P2+P3 total: 834           -26

General/big GNU toolchain news (including sourceware news):
 * Sourceware Open Office was held Friday, February 13, 2026
  * virtual machines, virtual communities
  * Minutes will provided later on
  * Notice for the meeting:
https://inbox.sourceware.org/gcc/20260214002144.GN8940@gnu.wildebeest.org/T/#mb31f7907f11b667f4a653169df77657c2a37a3ff
* Office Hours for the GNU Toolchain will happen on Thursday February 19, 2026
 * https://gcc.gnu.org/wiki/OfficeHours
 * Asian Friendly one:  0900h "Asia/Kolkata"
 * US/EU Friendly one: 1100h EST5EDT

GCC easy issue to tackle of the week:
* Transform if (a[i] > 0) sum += a[i] into sum += max (0, a[i]) when
vectorizing and have conditional add
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124097
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * Add copy prop for aggregates into a return
 * libgcobol: Add --with-target-libxml2{,-lib,-include}=
 * MinGW: Reject dll{im,ex}port attribute on TLS variables

GCC discussion:
 * BPF weekly open office minutes - 09 - Feb - 2026
  * https://inbox.sourceware.org/bpf/87ldh1lk1g.fsf@gnu.org/T/#u

GCC bugzilla stats
 * 73 new issues filed
 * 90 issues closed

glibc commits:
 * support: Add support for starting and stopping nscd
 * Linux: In getlogin_r, use utmp fallback only for specific errors

glibc discussion:
 * Meeting Minutes - Office Hours for CTI - 2026-02-13
  * https://inbox.sourceware.org/libc-alpha/41a4d52e-e890-4a12-9046-92f1a6f51eaf@redhat.com/T/


binutils/gdb commits:
 * binutils: Mark all Solaris targets. except Solaris 10, as obsolete.
 * gdb: remove arm simulator support

gdb discussion:
 *
 binutils discussion:
 *

GNU Tools Weekly News Week 26 (February 22, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 26 (February 22, 2026)

Release updates for GNU toolchain:
 * gcc 16.0 regression status
  * P1:                       21            -4
  * P1+P2+P3 total: 823           -11

General/big GNU toolchain news (including sourceware news):
 * Jens Gustedt's blog: Defer available in gcc and clang
  * https://gustedt.wordpress.com/2026/02/15/defer-available-in-gcc-and-clang/
 * GCC 2.95.3 binary pack for 68k Amiga
  * https://rastport.com/techblog/gcc-pack/
* Office Hours for the GNU Toolchain was helded on Thursday February 19, 2026
  * meeting notes can be found at https://gcc.gnu.org/wiki/OfficeHours
 * GCC has been accepted as a GSoC 2026 mentoring organization
  * https://inbox.sourceware.org/gcc/ri68qcnni5i.fsf@virgil.suse.cz/T/#m7fc97a3b91de9773e196fb42d01be755be3e054e
  * https://gcc.gnu.org/wiki/SummerOfCode


GCC easy issue to tackle of the week:
 * (a>>N) != (b>>N) is not optimized to (a^b) >= (1<<N)
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110010
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * c++: Implement __builtin_constexpr_diag (aka P2758 implementation)
 * c++: Implement proposed CWG 3123 resolution

GCC discussion:
 * Emacs mode for Machine Description files
  * https://inbox.sourceware.org/gcc/86y0ksbqrz.fsf@baylibre.com/T/#u

GCC bugzilla stats
 * 97 new issues filed
 * 94 issues closed

glibc commits:
 * aarch64: Lock GCS status at startup

glibc discussion:
 *

binutils/gdb commits:
 * gdb: Add "save user" command
 * gdb: Add "save skip" command
 * gdb: Add "save history" command

gdb discussion:
 *
binutils discussion:
 *

GNU Tools Weekly News Week 27 (March 1, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 27 (March 1, 2026)

Release updates for GNU toolchain:
 * gcc 16.0 regression status
  * P1:                       21            -0
  * P1+P2+P3 total: 812           -11

General/big GNU toolchain news (including sourceware news):
 * Sourceware/OSUOSL upgraded buildbot CI and forgejo runner workflow server
   * https://inbox.sourceware.org/gcc/20260214002144.GN8940@gnu.wildebeest.org/T/#m07d26322c0052164a008b5215254a4444f6ee32b
 * Starting patch review wiki
  * https://gcc.gnu.org/wiki/StartingPatchReview

GCC easy issue to tackle of the week:
 * (len | N) == len is transformed to len & N != 0
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101650
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue

* note about week 24 easy issue to tackle
 * patch submitted and reviewed (waiting for stage 1)
 * https://inbox.sourceware.org/gcc-patches/CALvbMcCX9CifimHfBM79dMmzPCOnrao4bhpNWEd=7fRq7OKE+w@mail.gmail.com/T/

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * gccrs: 46 patch merge
 * Fortran: Shared-memory Coarrays
  * https://gcc.gnu.org/onlinedocs/gfortran/Shared-memory-Coarrays.html
 * aarch64: support SME without SVE enabled


GCC discussion:
 * [RFC] Builtins for C++26 integer atomic reductions
  * https://inbox.sourceware.org/gcc/ECACB51F-CEDC-4772-B311-464590D5F340@nvidia.com/T/#u
 * RFC (C only): [[gnu::allow_vla]] attribute to suppress -Wvla on a
single declaration
  * https://inbox.sourceware.org/gcc/e909b7db-e2ad-f974-8476-08064ffa6fef@hesbynett.no/T/#m5c80e7ba3866b0630db1a53bb5e09d1585f3aeac
 *

GCC bugzilla stats
 * 107 new issues filed
 * 79 issues closed

glibc commits:
 * AArch64: Single and Double precision hyperbolics, SVE and AdvSIMD
optimisations
 * AArch64: Vectorise SVE log/log2/log10 single and double precision
special cases.
 * AArch64: Single and Double precision entire exp family, SVE and
AdvSIMD optimisations
 * aarch64: Vectorise inverse hyperbolic special cases

glibc discussion:
 * Meeting Minutes - glibc Office Hours (glibc branch maintenance and
move to gitolite) - 2026-02-27
  * https://inbox.sourceware.org/libc-alpha/CA+=Sn1mWP+enPR7pEjqHSu91K-=tzSND4++pBeepF=TM+F0wkw@mail.gmail.com/T/

binutils/gdb commits:
 * gdb: implement "info proc environ"
 *

gdb discussion:
 *
binutils discussion:
 *

GNU Tools Weekly News Week 28 (March 8, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 28 (March 8, 2026)

Release updates for GNU toolchain:
 * gcc 16.0 regression status
  * P1:                       16            -5
  * P1+P2+P3 total: 793           -19

General/big GNU toolchain news (including sourceware news):
 * The Compile Farm Project now hosts two NVIDIA DGX Spark and one
NVIDIA Jetson AGX Thor
  * https://portal.cfarm.net/news/56
  * https://portal.cfarm.net/news/58

GCC easy issue to tackle of the week:
 * Missed optimization for branch folding with unsigned arithmetic wraparound
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122996
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * x86: Many -masm=intel fixes for AVX/AVX2/AVX512

GCC discussion:
 * GSoC 2026 project discussions from participates
 * SFrame for C++ coroutine stack traces
  * https://inbox.sourceware.org/gcc/ae4cf3a0-222a-4d01-9463-71b58bd48597@oracle.com/T/#u

GCC bugzilla stats
 * 91 new issues filed
 * 81 issues closed


glibc commits:
 * math: Sync log1pf, log2p1f, log10f, and log10p1f with CORE-MATH
 * AArch64: Improve memset when len is 64

glibc discussion:
 * Adjust the _Float16 ABI to return in a GPR (32bit x86)
  * https://inbox.sourceware.org/libc-alpha/CAOq2Nw=rq4W8DpWtUwoXzZyfJ02ZHgcVVWXki4+y3c9XtiN+RQ@mail.gmail.com/T/


binutils/gdb commits:
 * PowerPC: Support for SHA2 and SHA3 Compute Instructions (RFC02654)
 * libiberty sync from gcc repo

gdb discussion:
 *

binutils discussion:
 *

GNU Tools Weekly News Week 29 (March 15, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 29 (March 15, 2026)

Release updates for GNU toolchain:
 * GCC 16.0.1 release status:
  * https://inbox.sourceware.org/gcc/6277162s-n588-nps4-551p-nsp885rn4212@fhfr.qr/T/#u
 * gcc 16.0 regression status (note this is not official numbers, it
might be off by a few)
  * P1:                       11            -5
  * P1+P2+P3 total: 776           -17


General/big GNU toolchain news (including sourceware news):
 * Notes from Sourceware Open Office, Fri 16:00 UTC
  * https://inbox.sourceware.org/gcc/20260316011308.GA32479@gnu.wildebeest.org/
 * Dimitar Dimitrov was appointed as PRU binutils maintainer
  * https://inbox.sourceware.org/binutils/fa6e9bc9-60d1-458c-832c-02fbcda99c4e@suse.com/T/#m8dcf81087b993f0b82b392d72427b3e73a4dc920
  * https://sourceware.org/cgit/binutils-gdb/commit/?id=cd764745c794944601d7aa1b836597475f5f0f33

GCC easy issue to tackle of the week:
 * `(x ^ (-CMP)) + CMP` -> `CMP ? -x : x`
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113894
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue.

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * arm: Add support for _BitInt(N)
  * https://gcc.gnu.org/cgit/gcc/commit/?h=trunk&id=e256eb478ad1b8c2c767aa35e03903bf4cd7c842
 * c++: require C++26 for -freflection
  * https://gcc.gnu.org/cgit/gcc/commit/?h=trunk&id=9bb200e71ccf9c923bd9c7bd546130446fd76e95
 * doc: Move specs documentation to GCC internals manual
  * https://gcc.gnu.org/cgit/gcc/commit/?h=trunk&id=c600bb7aefca1ac43e57ac8dde957183a8fca7a9
 *

GCC discussion:
 * GSoC 2026 project discussions from participates
 * Policy on use of LLM tools and bug fixes
  * https://inbox.sourceware.org/gcc/CAFiYyc3XoTbYe_pjpj5PvmiNN2uX58ssjMh4Dr3=euqpP1SruQ@mail.gmail.com/T/#m4365c662ccc0af15fe987fdd87556fb842e62d2a
 * [RFC] Builtins for C++26 integer atomic reductions
  * https://inbox.sourceware.org/gcc/ECACB51F-CEDC-4772-B311-464590D5F340@nvidia.com/T/#m32107687793209cbbaa543c10e139cf381e121ed
 * Questions on PROMOTE_MODE, function_promote_mode
  * https://inbox.sourceware.org/gcc/306d4117-9e41-4732-a1ad-d4d88fdd2218@oss.qualcomm.com/T/#md49ec554ad57e804e4f055ee8ab273d8a2c9a740
 *


GCC bugzilla stats
 * 126 new issues filed
 * 119 issues closed

glibc commits:
 * LoongArch: Optimize float environment functions
  * https://sourceware.org/cgit/glibc/commit/?id=41e2067a8f238310e72e70b21f7d67fe7d8a9189
 * Support loading libunwind (from LLVM compile-rt) instead of libgcc_s
  * https://sourceware.org/cgit/glibc/commit/?id=5d89e7c47cc9d27475e086dedbeecc69be82aa74
 * malloc: Improve memalign alignment
  * https://sourceware.org/cgit/glibc/commit/?id=28882c408c7177ff82277bd69f0d7d4078f72561

glibc discussion:
 * [Question] Will switching Linux UAPI headers from __ASSEMBLY__ to
__ASSEMBLER__ affect glibc?
  * https://inbox.sourceware.org/libc-alpha/CABZAGREvnu7DYOyCEYdjOSPMzhbjexmx55Xi9wjNeXd_CuaUxA@mail.gmail.com/T/#m28911e194ed53e1e0e982815f6d035f9fb73c3c5
 * glibc test time regression after gawk update
  * https://inbox.sourceware.org/libc-alpha/202603091211.629CBP4A089309@freefriends.org/T/#me1cf4fe55daef0968479dcb9db5f971bc6770127
 *
binutils/gdb commits:
 * gdb: boolification
  * Many commits so not listing
 * bfd: boolification
  * Likewise

gdb discussion:
 *

binutils discussion:
 *

GNU Tools Weekly News Week 30 (March 22, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 30 (March 22, 2026)

Release updates for GNU toolchain:
 * gcc 16.0 regression status (note this is not official numbers, it
might be off by a few)
  * P1:                       9            -2
  * P1+P2+P3 total: 773          -3

General/big GNU toolchain news (including sourceware news):
 * Sourceware Survey 2026
  * https://inbox.sourceware.org/gcc/20260320112515.GO344@gnu.wildebeest.org/T/#u
 * GNU toolchan open office hours were held
  * notes can be found at https://gcc.gnu.org/wiki/OfficeHours

GCC easy issue to tackle of the week:
 * Missed optimisation: std::in_range simpler size check
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118879
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue.

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * libstdc++: Implement [simd] for C++26
   * https://gcc.gnu.org/cgit/gcc/commit/?id=8be0893fd98c9a89bbcd81e0ff8ebae60841d062
 * c++: enable contracts under -std=c++26
  * https://gcc.gnu.org/cgit/gcc/commit/?id=62a3c3d5951d078f165ea2c3dc461109b131a289
 * gccrs: Sync 41 patches

GCC discussion:
 * GSoC 2026 project discussions from participates
 * Policy on use of LLM tools and bug fixes (continued):
  * https://inbox.sourceware.org/gcc/CAFiYyc3XoTbYe_pjpj5PvmiNN2uX58ssjMh4Dr3=euqpP1SruQ@mail.gmail.com/T/#m4365c662ccc0af15fe987fdd87556fb842e62d2a
 * COBOL: Hoping for insight with middle-end computation time.
 * https://inbox.sourceware.org/gcc/CAFiYyc3k3PGmvYr+vRoP0VUN+TsBCm8iZfwUT2YMCrZVk4oRDA@mail.gmail.com/T/#m22a906fc6d95d3702a31a1024f292d7f0d6570e3
 * RFC: Allow "(mem:<vectype> (reg:<vectype>))"
  * https://inbox.sourceware.org/gcc/2d3b73d2-9221-7b98-8fcf-c4fcf2be619c@suse.de/T/#m6a9c799fd3d51a396036c6963fdeffee7fd68705
 * Earliest version of gcc the project should support as stage1 for gcc 17
  * https://inbox.sourceware.org/gcc/BC210281-A856-43EE-A297-984DA40A1AE2@comcast.net/T/#m411c5ed5aec8ad76588372fb333a6a5239402dd4

GCC bugzilla stats
 * 73 new issues filed
 * 129 issues closed

glibc commits:
 * math: Use cosh, sinh, tanh from CORE-MATH
 * x86_64: Add cosh with FMA
  * https://sourceware.org/cgit/glibc/commit/?id=c7a7bfe54e7d7cf6ff21114dacdeeb543c378dc2
 * math: Sync tgammaf, lgammaf with CORE-MATH
 * AArch64: Remove prefer_sve_ifuncs
  * https://sourceware.org/cgit/glibc/commit/?id=057e7c9aa1578964712ed01e9f7e986412d9fe6c
 * math: Fix spurious overflow and missing errno for lgammaf
  * https://sourceware.org/cgit/glibc/commit/?id=19781c22211c6db827eefc240cb6724b5512fc6b

binutils/gdb commits:
 * infcall: Add support for integer literals as reference function parameters
  * https://sourceware.org/cgit/binutils-gdb/commit/?id=883363daadfa6fc4f9221546f448bfa6a87dd447
 * add i386-phoenix, sparc-phoenix, aarch64-phoenix, arm-*-phoenix target to gas
 *

gdb discussion:
 *

binutils discussion:
 *

GNU Tools Weekly News Week 31 (March 29, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 31 (March 29, 2026)

Release updates for GNU toolchain:
 * gcc 16.0 regression status (note this is not official numbers, it
might be off by a few)
  * P1:                       10           +1
  * P1+P2+P3 total: 769          -4

General/big GNU toolchain news (including sourceware news):
 * slow week last week


GCC easy issue to tackle of the week:
 * `(a ^ c) & (a | c)` -> `a ^ c` not done on the gimple/tree level
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115547
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue.

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 *

GCC discussion:
 * GSoC 2026 project discussions from participates
 * changes requesting for GCC 17 Release Criteria (secondary targets)
  * https://inbox.sourceware.org/gcc/CALvbMcCGVidhnAoQ=4TM3uL9=nFE-WCHc8Sxd49G6W8J3DV3qw@mail.gmail.com/T/#ma068de3a21c27075443bd7422149a7185181f3c4
 *

GCC bugzilla stats
 * 83 new issues filed
 * 89 issues closed

glibc commits:
 * LoongArch: Add support for LA32

binutils/gdb commits:
 * gdb: Add in NEWS about dropping AIX 7.1 support.
  * https://sourceware.org/cgit/binutils-gdb/commit/?id=c116c67be27fad91095a2bb13bc0bd48f4e4d623
 *
gdb discussion:
 *
binutils discussion:
 *

GNU Tools Weekly News Week 32 (April 5, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 32 (April 5, 2026)

Release updates for GNU toolchain:
 * gcc 16.0 regression status (note this is not official numbers, it
might be off by a few)
  * P1:                       9           -1
  * P1+P2+P3 total: 766        -3

General/big GNU toolchain news (including sourceware news):
 * gdb AArch64/Arm Maintainership updates
  * https://inbox.sourceware.org/gdb-patches/87fr5gvlhk.fsf@linaro.org/T/

GCC easy issue to tackle of the week:
 * `(__int128_var >> 127) & 1` is not optimized to ((unsigned
__int128)__int128_var ) >> 127 in gimple level
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120524
  * Reach out to Andrew Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue.

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * aarch64, Darwin: Add Apple M5 cores
  * https://gcc.gnu.org/cgit/gcc/commit/?id=fabd0213b7865c47fecbddb3395c2dd176b1a4fe
 * aarch64: Add support for 2025 architecture feature options
  * https://gcc.gnu.org/cgit/gcc/commit/?id=54bf4db7f30556868970715e71614f6a6e1b69a1
 * aarch64: Sync aarch64-sys-regs.def with Binutils
  * https://gcc.gnu.org/cgit/gcc/commit/?id=054b7f2f706c6542f4aca002eb251a27acadab21
 * d: Merge upstream dmd, druntime e7c34c13de, phobos 0c5c9e984.
  * https://gcc.gnu.org/cgit/gcc/commit/?id=abd5a118491a28d586448dab7db1862e64d6bd46
 * cobol: Reduce CFG complexity; improve PERFORM return logic; improve
INSPECT performance.
  * https://gcc.gnu.org/cgit/gcc/commit/?id=f1f0ab5d2f371efeb26cbcee3eee46c903042e44
 * c++: Implement CWG3119 - for-range-declaration of an
expansion-statement as a templated entity
  * https://gcc.gnu.org/cgit/gcc/commit/?id=6c3aaf09c4db2dc97d2347e94e4c0c364047136e

GCC discussion:
 * GSoC 2026 project discussions from participates
 * LLVM[/clang (and gcc) builtin] FP atomic min/max variants alignment
  * https://inbox.sourceware.org/gcc/IA1PR12MB6281A2E30D27025768852B29B452A@IA1PR12MB6281.namprd12.prod.outlook.com/T/
 * [RFC] On sending forge pull request discussions to the mailing list
  * https://inbox.sourceware.org/gcc/c16d2000-a13c-4136-8faf-3c0bb5feb402@arm.com/
 * Update on community health
  * https://inbox.sourceware.org/gcc/CALvbMcDQoZeE0zYH55UQx+-nDpb+ZZZzPmPLuW78n2Qa2gt2FQ@mail.gmail.com/T/

GCC bugzilla stats
 * 98 new issues filed
 * 63 issues closed

glibc commits:
 * math: Sync sinh from CORE-MATH
  * https://sourceware.org/cgit/glibc/commit/?id=996885ecd8bb6e0ee62fb261cdddbc6757006808
 * AArch64: Remove eMAG memchr/memset ifuncs
  * https://sourceware.org/cgit/glibc/commit/?id=49ed3efdd38e7744d458ea2b1965587d7635a449
  * https://sourceware.org/cgit/glibc/commit/?id=d43c0b008eb04208403421f3a40752b2c55b650b
  * https://sourceware.org/cgit/glibc/commit/?id=87083d062a80f7d4a24f80148dd7bc139a9c16d1
 *

glibc discussion:
 * glibc AI policy
  * https://inbox.sourceware.org/libc-alpha/lhu341da2bl.fsf@oldenburg.str.redhat.com/


binutils/gdb commits:
 *
gdb discussion:
 *
binutils discussion:
 *

GNU Tools Weekly News Week 33 (April 12, 2026)

[GNU Tools weekly via Gdb]

GNU Tools Weekly News Week 33 (April 12, 2026)

Release updates for GNU toolchain:
 * gcc 16.0 regression status (note this is not official numbers, it
might be off by a few)
  * P1:                       10         +1
  * P1+P2+P3 total: 766        -0

General/big GNU toolchain news (including sourceware news):
 * GNU Tools Cauldron 2026 timing and location quietly has been made public
  * Fri-Sun, October 2-4, 2026 at Charles University in Prague, Czechia
  * https://gcc.gnu.org/wiki/cauldron2026
 * Krister Walfridsson's blog about smtgcc part 6: uninitialized memory
  * https://kristerw.github.io/2026/04/10/uninitialized-memory/
 * Results of the Sourceware Survey 2026
  * https://sourceware.org/survey-2026
 * Sourceware infrastructure updates for Q1 2026
  * https://inbox.sourceware.org/overseers/20260406221424.GB7048@gnu.wildebeest.org/
 * Sourceware Survey results and Budget priority discussions
  * https://inbox.sourceware.org/gcc/20260412192052.GA15385@gnu.wildebeest.org/

GCC easy issue to tackle of the week:
 * `((~x) & y) ^ (x | y)` is x
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112095
  * Reach out to Andrea Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue.

GCC commits:
 * note most of the commits from now until the release are bug fixes
which have not been listed here normally
 * c++: Implement CWG3140 - Allowing expansion over non-constant std::array
  * https://gcc.gnu.org/cgit/gcc/commit/?id=b2d4d8ddd91c6087420facef74841099b49e91ad
 * c++: Implement CWG3135 - constexpr structured bindings with
prvalues from tuples
  * https://gcc.gnu.org/cgit/gcc/commit/?id=7e4e9dd9eb01de7bf9fc7abe82e9ab01123283cc
 * aarch64: AutoFDO: Add support for ARM SPE to autoprofiledbootstrap
  * https://gcc.gnu.org/cgit/gcc/commit/?id=5df258ae1ad01fc75705a35296a29fd359121845

GCC discussion:
 * GSoC 2026 project discussions from participates
 * (more) Update on community health
  * https://inbox.sourceware.org/gcc/CALvbMcBQzYDcfUW0OtU3BK=6FhrKmLmNhwMVJ5OZmg=CAwuF5Q@mail.gmail.com/T/#t
 * (continued) On sending forge pull request discussions to the mailing list
  * https://inbox.sourceware.org/gcc/c16d2000-a13c-4136-8faf-3c0bb5feb402@arm.com/

GCC bugzilla stats
 * 77 new issues filed
 * 55 issues closed

glibc commits:
 * math: Add fast-path to fma
  * https://sourceware.org/cgit/glibc/commit/?id=dfb150f3aadd93118a78ef9e19c2663f0e1994b7

glibc discussion:
 * glibc AI policy

binutils/gdb commits:
 * gas/ld: aarch64: Add support for %dtprel(var) and R_AARCH64_TLS_DTPREL64

gdb discussion:
 *
binutils discussion:
 *