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14 hours agodocs FAQ: update gmane and add a bit on Stack Overflow. master
Paul Floyd [Mon, 25 May 2026 14:02:40 +0000 (16:02 +0200)] 
docs FAQ: update gmane and add a bit on Stack Overflow.

The gmane part was simply out of date. For SO I tried really hard not
to be rude about the quality of the reviewing.

2 days agoRegtest arm64: remove none filter_nan
Paul Floyd [Sat, 23 May 2026 05:39:30 +0000 (07:39 +0200)] 
Regtest arm64: remove none filter_nan

Handle printing "-nan" in simd.c rather than using a filter. Also use builtins
to generate inf and nan values as it is more reliable.

2 days agoUse helper functions to print double +/- inf/nan for amd64 fxtract and bug132918...
Paul Floyd [Sat, 23 May 2026 05:11:34 +0000 (07:11 +0200)] 
Use helper functions to print double +/- inf/nan for amd64 fxtract and bug132918 testcases

These are the last two x86/amd64 testcases with printf inf/nan issues.

3 days agoRemove VEX/test
Florian Krohm [Fri, 22 May 2026 20:08:50 +0000 (22:08 +0200)] 
Remove VEX/test

The snippets there are not suitable for testsuite integration.
Some compile with warnings or not at all (x87fxam.c, x87tst.c),
fpucw.c has no meaningful output. The remaining ones test x87
FPU state save / restore by dumping the state as hex bytes. That
would result in several .exp files because FPU state contains
instruction and data addresses.

3 days agoUse helper functions to print double +/- inf/nan for x86 fxtract testcase
Paul Floyd [Fri, 22 May 2026 19:06:53 +0000 (21:06 +0200)] 
Use helper functions to print double +/- inf/nan for x86 fxtract testcase

Similar to recent commit for sse4 testcases

3 days agoBug 513165 - Update zstd to 1.5.7
Julien Floyd [Sun, 3 May 2026 11:03:08 +0000 (13:03 +0200)] 
Bug 513165 - Update zstd to 1.5.7

This was done following the README_DEVELOPERS zstd upgrade guide, I copied the
new version of zstd and did a 3 way merge to avoid conflicts.

3 days agoUse helper functions to print double +/- inf/nan for sse4 testcase
Mark Wielaard [Fri, 22 May 2026 05:39:56 +0000 (07:39 +0200)] 
Use helper functions to print double +/- inf/nan for sse4 testcase

Different libc printf implementations can have different ways to print
plus/minus nan/inf values. Add a print_double wrapper that checks
whether the double value is a nan, inf and whether it has a positive
or negative signbit. Similarly add a print_float wrapper. This way
we don't need any alternative .exps or filters.

4 days agonone/tests/{x86,amd64}/Makefile.am: Move fb_test headers in noinst_HEADERS
Mark Wielaard [Thu, 21 May 2026 12:36:26 +0000 (14:36 +0200)] 
none/tests/{x86,amd64}/Makefile.am: Move fb_test headers in noinst_HEADERS

4 days agoBug 271615: Unhandled instruction "popcnt" (x86)
Martin Cermak [Thu, 21 May 2026 11:20:59 +0000 (13:20 +0200)] 
Bug 271615: Unhandled instruction "popcnt" (x86)

VEX/priv/guest_x86_toIR.c: POPCNT decoder authored by
                           Thomas.Eschenbacher@gmx.de
none/tests/x86/sse4-x86.c: Test coverage
none/tests/x86/sse4-x86.stdout.exp: ditto
none/tests/sse4-common.h: ditto

https://bugs.kde.org/show_bug.cgi?id=271615

4 days agoFreeFSD regtest: update none x86/sse4-x86 expected
Paul Floyd [Thu, 21 May 2026 06:34:07 +0000 (08:34 +0200)] 
FreeFSD regtest: update none x86/sse4-x86 expected

5 days agoAdd PACKUSDW SSE4.1 support for x86
Mark Wielaard [Thu, 5 Mar 2026 17:49:32 +0000 (18:49 +0100)] 
Add PACKUSDW SSE4.1 support for x86

Add handling of PACKUSDW to VEX/priv/guest_x86_toIR.c based on the
guest_amd64_toIR.c implementation. Handle Iop_QNarrowBin32Sto16Ux8
using h_generic_calc_QNarrowBin32Sto16Ux8 in VEX/priv/host_x86_isel.c.

Move test_PACKUSDW from none/tests/amd64/sse4-64.c to
none/tests/sse4-common.h and add the same test to
none/tests/x86/sse4-x86.c with new PACKUSDW output in stdout.exp.

https://bugs.kde.org/show_bug.cgi?id=517144

5 days agoVEX/test: Remove various files.
Florian Krohm [Wed, 20 May 2026 21:39:40 +0000 (23:39 +0200)] 
VEX/test: Remove various files.

Either boring, or not suitable for integration into the testsuite
or redundant.

5 days agoAdd SSE4.1 PEXTRD instruction for x86 32 bit
Alexandra Hájková [Thu, 30 Apr 2026 14:44:27 +0000 (10:44 -0400)] 
Add SSE4.1 PEXTRD instruction for x86 32 bit

Support pextrd instruction in guest_x86_toIR.c and
host_x86_isel.c. Add test function to sse4-common.h
and update none/tests/x86/sse4-x86.c to test the
instruction.

BZ: https://bugs.kde.org/show_bug.cgi?id=295974

6 days agoAdd fb_test header files to none/tests/x86/Makefile.am EXTRA_DIST
Mark Wielaard [Tue, 19 May 2026 17:10:21 +0000 (19:10 +0200)] 
Add fb_test header files to none/tests/x86/Makefile.am EXTRA_DIST

Add fb_test_i386.h, fb_test_i386_shift.h and fb_test_i386_muldiv.h.
Fixes make distcheck.

7 days agoTestcase none/tests/x86/fb_test_i386.c: disable test_fenv
Florian Krohm [Mon, 18 May 2026 21:16:45 +0000 (23:16 +0200)] 
Testcase none/tests/x86/fb_test_i386.c: disable test_fenv

Results differ depending on compiler version.

8 days agofree_aligned_sized: improve error message for alignment mismatch
Paul Floyd [Sun, 17 May 2026 10:42:26 +0000 (12:42 +0200)] 
free_aligned_sized: improve error message for alignment mismatch

Previously if the allocation used default alignment then
the error message used 0 for the allocation alignment.
Now it says "default-aligned".

8 days agoRegtest: add a test for C23 free_sized and free_aligned_sized
Paul Floyd [Sun, 17 May 2026 09:40:02 +0000 (11:40 +0200)] 
Regtest: add a test for C23 free_sized and free_aligned_sized

With Fedora 44 these are now generally available.

9 days agoNew test none/tests/x86/fb_test_i386.c
Florian Krohm [Sat, 16 May 2026 20:31:17 +0000 (20:31 +0000)] 
New test none/tests/x86/fb_test_i386.c

This is essentially VEX/test/test-i386* with various fixes.
The md5sum code in fb_test_i386.c was copied verbatim from
none/tests/amd64/fb_test_amd64.c.

9 days agoVEX/test: Remove test-amd.[ch] and included header files.
Florian Krohm [Thu, 14 May 2026 21:07:22 +0000 (21:07 +0000)] 
VEX/test: Remove test-amd.[ch] and included header files.

This test has already been integrated as "none/tests/amd64/fb_test_amd64.c"

9 days agoBug 487418 - [arm64] Cleanup M{SR,RS} instructions (part 2)
Paul Floyd [Sat, 16 May 2026 09:16:36 +0000 (11:16 +0200)] 
Bug 487418 - [arm64] Cleanup M{SR,RS} instructions (part 2)

Extracts system register shift and mask macros to a new VEX public
header libvex_guest_arm64_sysregs.h

These macros are used in both VEX dirty helpers and coregrind
VG_(machine_get_hwcaps).

Mostly this is just refactoring the code. It should be more robust
in the face of changes concerning future ARM CPU features. The
id_aa64pfr0_el1 dirty helper has changed a bit - the code was wrong
but the output was right (for what we currently support).

11 days agoRemove VEX/switchback
Florian Krohm [Thu, 14 May 2026 16:22:54 +0000 (16:22 +0000)] 
Remove VEX/switchback

The code does not compile since 56e04256a7a and hasn't been used in a
long time.

11 days agoRemove VEX/unused
Florian Krohm [Thu, 14 May 2026 15:57:56 +0000 (15:57 +0000)] 
Remove VEX/unused

20 years of being unused are enough.

2 weeks ago.gitignore: VEX related changes
Florian Krohm [Mon, 11 May 2026 22:09:17 +0000 (22:09 +0000)] 
.gitignore: VEX related changes

2 weeks agoReformat README.freebsd for an 80 wide terminal
Paul Floyd [Mon, 11 May 2026 18:51:43 +0000 (20:51 +0200)] 
Reformat README.freebsd for an 80 wide terminal

2 weeks agotestcases: Cleanup garbage.filtered.out
Florian Krohm [Sun, 10 May 2026 17:59:59 +0000 (17:59 +0000)] 
testcases: Cleanup garbage.filtered.out

2 weeks agoTweak .gitignore
Florian Krohm [Thu, 7 May 2026 08:27:44 +0000 (08:27 +0000)] 
Tweak .gitignore

Forgotten in 8221f8f3842a75632060f1ba83339ee28a091882

2 weeks agoarm64: change configure dotprod test to a run test
Paul Floyd [Sun, 10 May 2026 13:10:58 +0000 (15:10 +0200)] 
arm64: change configure dotprod test to a run test

We were testing for dotprod with AC_COMPILE_IFELSE. That's wrong, it just
checks that the compiler accepts -march=armv8.2-a+dotprod and that the
assembler handles dotprod opcodes. Changed it to AC_RUN_IFELSE which
additionally checks that the binary runs. Valgrind should be checking
for this in VG_(machine_get_hwcaps), storing it in VexArchInfo and
checking it in guest_arm64_toIR.c (it looks like we check it but don't
store 'dp' in vai.hwcaps and in general VEX doesnt check whether it
should try to decode these extensions).

2 weeks agoBug 391311 - [Patch] Fix arm64 valgrind tests compilation with clang
Paul Floyd [Sun, 10 May 2026 10:47:18 +0000 (12:47 +0200)] 
Bug 391311 - [Patch] Fix arm64 valgrind tests compilation with clang

This fixes the last part of the issues - CPUs with and without
crypto support. Rather than just fix building tests this splits
the crypto part out of fp_and_simd.c into a new file, v8crypro.c

2 weeks agoarm64: add a configure check for crypto support
Paul Floyd [Sun, 10 May 2026 07:34:19 +0000 (09:34 +0200)] 
arm64: add a configure check for crypto support

This is related to https://bugs.kde.org/show_bug.cgi?id=391311
In the patch for that bugzilla item there is a build time fix.
Without the crypto tests the test will fail.

If there are no issues with this configure test I'll split off a new
test v8crypto from fp_and_simd.

2 weeks agoRegtest: remove duplicate break from iropt-test/unary.c
Paul Floyd [Sat, 9 May 2026 19:34:26 +0000 (21:34 +0200)] 
Regtest: remove duplicate break from iropt-test/unary.c

Louis Brunner fixed this and I noticed the diff so merging
it upstream.

2 weeks ago[mips] fix CmpLE32U and Max32U ops
Petar Jovanovic [Sat, 9 May 2026 13:46:27 +0000 (13:46 +0000)] 
[mips] fix CmpLE32U and Max32U ops

CmpLE32U operation was incorrectly implemented as a signed comparaison,
use less-or-same for unsigned.

Max32U operation was incorrectly implemented using the SLT instruction,
use the unsigned variant SLTU.

This partially fixes none/tests/iropt-test.

Patch by:
Dimitrije Dzunic <dimitrije.dzunic@htecgroup.com>
Aleksandar Rikalo <aleksandar.rikalo@htecgroup.com>

2 weeks agoarm64: update comment for DCZID_EL0
Paul Floyd [Fri, 8 May 2026 13:43:21 +0000 (15:43 +0200)] 
arm64: update comment for DCZID_EL0

2 weeks agoBug 487418 - [arm64] Cleanup M{SR,RS} instructions (part 1)
Paul Floyd [Fri, 8 May 2026 11:04:42 +0000 (13:04 +0200)] 
Bug 487418 - [arm64] Cleanup M{SR,RS} instructions (part 1)

This is point 6 on the list.
1. Cache the DZP bit from mrs dczid_el0 in a new field arm64_data_zero_prohibited of VexArchInfo
2. Use the cached values from VexArchInfo for mrs dczid_el0 rather than a dirty helper
3. Add a check to dc zva that the above DZP wasn't set. If it is then print a message
and stop with a Ijk_SigILL.

2 weeks agoRegtest: make x86 and amd64 inf and nan production cross platform, part 2
Paul Floyd [Fri, 8 May 2026 10:47:41 +0000 (12:47 +0200)] 
Regtest: make x86 and amd64 inf and nan production cross platform, part 2

This is for FreeBSD and probably Darwin as well.

Now that we have the same nan generation on all platforms we only need two
expecteds for these tests, one where printf of a negative nan outputs
-nan and the other where it outputs nan.

So, add an expected for FreeSD x86. Rationalise the amd64 expecteds.
There were 2 for FreeBSD only differentiated by the mkPosNan codegen.
Now just the one is needed. While I'm at it make the expected name
more consistent, exp-freebsd rather than exp.freebsd.

2 weeks agoRegtest: make x86 and amd64 inf and nan production cross platform
Paul Floyd [Fri, 8 May 2026 07:05:42 +0000 (09:05 +0200)] 
Regtest: make x86 and amd64 inf and nan production cross platform

We were using 1.0/0.0 to produce a positive inf and 0.0/0.0 to
produce a postive nan. GCC and clang handle the nan case
differently. GCC generates the division which counterintuitively
results in a negative nan. clang does constant folding and
directly generates a positive nan.

This change uses __builtin_inf and __builtin_nan instead. These
were added back with GCC 3.3 so there should be no backwards
compatibility issues.

2 weeks agoexp-bbv clone_test: Cleanup
Florian Krohm [Wed, 6 May 2026 20:50:19 +0000 (20:50 +0000)] 
exp-bbv clone_test: Cleanup

2 weeks agoComplete x86 ROUNDSS, ROUNDSD support and add testcases
Mark Wielaard [Sat, 2 May 2026 17:03:20 +0000 (19:03 +0200)] 
Complete x86 ROUNDSS, ROUNDSD support and add testcases

x86 already supported SSE 4.1 ROUNDSS and ROUNDSD instructions like
amd64. But was missing two small fixes.

commit 20277ab2a575ffb50eb4efd58b6a554ffc2927e1 (vex svn r2074)
Handle non-immediate-rounding-mode versions of ROUND{P,S}{S,D}.

commit 779b619c76900dd8d1aa16bb0c693918006019ee (vex svn r2211)
Ignore the precision flag in the ROUND{SS,SD,PS,PD} rounding mode.

Add these and adapt the ROUNDSS and ROUNDSD testcases so they work on
both amd64 and x86. Move get_mxcsr, set_mxcsr, get_sse_roundingmode
and set_sse_roundingmode from sse4-64.c to sse4-common.h (and add x86
variants). Move ROUNDSD and ROUNDSS test function and make them use
XMMREG_DST instead of xmm11 (which isn't available on x86).

Add testcase output for test_ROUNDSD_w_immediate_rounding(),
test_ROUNDSS_w_immediate_rounding(), test_ROUNDSD_w_mxcsr_rounding()
and test_ROUNDSS_w_mxcsr_rounding() to sse4-x86.stdout.exp.

https://bugs.kde.org/show_bug.cgi?id=518220

2 weeks agolackey tests: Include missing Makefile.tool-tests.am
Florian Krohm [Wed, 6 May 2026 13:01:54 +0000 (13:01 +0000)] 
lackey tests: Include missing Makefile.tool-tests.am

2 weeks agoMakefile.vex.am --> VEX/Makefile.am
Florian Krohm [Tue, 5 May 2026 20:59:02 +0000 (20:59 +0000)] 
Makefile.vex.am --> VEX/Makefile.am

Makefile.vex.am was a left-over from the days when VEX resided in a
repository of its own.

2 weeks agoRegtest Linux ppc64le: add an expected for memcheck sys-execveat
Paul Floyd [Tue, 5 May 2026 04:37:39 +0000 (06:37 +0200)] 
Regtest Linux ppc64le: add an expected for memcheck sys-execveat

3 weeks agoFix gxx304 testcase.
Florian Krohm [Mon, 4 May 2026 15:21:35 +0000 (15:21 +0000)] 
Fix gxx304 testcase.

Testcases ought to clean up after themselves.

3 weeks agomake clean to remove artifacts from failed regression tests.
Florian Krohm [Mon, 4 May 2026 14:49:16 +0000 (14:49 +0000)] 
make clean to remove artifacts from failed regression tests.

3 weeks agoDarwin syswrap: make kdebug_trace_string helpers conditional
Paul Floyd [Mon, 4 May 2026 06:21:32 +0000 (08:21 +0200)] 
Darwin syswrap: make kdebug_trace_string helpers conditional

Only for OSX 10.11 and later. Part of cleanup for
https://bugs.kde.org/show_bug.cgi?id=519604

3 weeks agoREADME_DEVELOPERS: improve updating zstd instructions
Paul Floyd [Sun, 3 May 2026 17:51:49 +0000 (19:51 +0200)] 
README_DEVELOPERS: improve updating zstd instructions

and a couple of typos.

3 weeks agoMention 519574 - 'valgrind 3.27 --fair-sched=yes does not work' in NEWS
Mark Wielaard [Sun, 3 May 2026 14:07:53 +0000 (16:07 +0200)] 
Mention 519574 - 'valgrind 3.27 --fair-sched=yes does not work' in NEWS

3 weeks agoDarwin: make sure that VKI_AT_FDCWD is defined on old systems
Paul Floyd [Sun, 3 May 2026 13:16:10 +0000 (15:16 +0200)] 
Darwin: make sure that VKI_AT_FDCWD is defined on old systems

We claim support for OSX 10.8 and 10.9 byut they don't have
AT_FDCWD. So define it ourselves.

Part of the fixes for https://bugs.kde.org/show_bug.cgi?id=519604

3 weeks agoDarwin persona syscall: use the SYS_persona macro to detect at build time
Paul Floyd [Sun, 3 May 2026 06:39:07 +0000 (08:39 +0200)] 
Darwin persona syscall: use the SYS_persona macro to detect at build time

It looks like I broke OSX 10.10 build when I added the persona wrapper.
Rather than hard code the version for persona this should work on
all platforms. In the longer term I'd like to do the same as Linux
and FreeBSD and not use a VERS macro for Darwin syscalls.

3 weeks agoChange XMMREG_DST in sse4-common.h back to xmm11 for amd64
Mark Wielaard [Sat, 2 May 2026 20:59:23 +0000 (22:59 +0200)] 
Change XMMREG_DST in sse4-common.h back to xmm11 for amd64

XMMREG_DST for amd64 (x86_64) was accidentially set to xmm7 instead of
using xmm11 in commit a1904db1dd0ee8c046a3fd89c822463cd496d78e.
Add SSE4.1 PBLENDVB, BLENDVPS and BLENDVPD

Change it back to xmm11 to make sure a register that isn't available
in 32bit mode is tested. No changes to any of the test results because
of this.

3 weeks agoDarwin: fix a typo in a macro conditional
Paul Floyd [Sat, 2 May 2026 07:21:55 +0000 (09:21 +0200)] 
Darwin: fix a typo in a macro conditional

3 weeks agoFreeBSD suppression: broaden _malloc_postfork for FreeBSD 16
Paul Floyd [Fri, 1 May 2026 20:17:12 +0000 (20:17 +0000)] 
FreeBSD suppression: broaden _malloc_postfork for FreeBSD 16

3 weeks agoDarwin fixup_macho_loadcmds: make build more flexible
Paul Floyd [Fri, 1 May 2026 09:16:17 +0000 (11:16 +0200)] 
Darwin fixup_macho_loadcmds: make build more flexible

Part of work for https://bugs.kde.org/show_bug.cgi?id=519604

The value of maxprot for the __UNIXSTACK load command changed
from 7 to 3 during the macOS 10.14 lifecycle. Our code used
the SDK value to decide which to check for. MacPorts buildbot
targets all macOS 10.14 versions which does not work with our
assumption that latest 10.14 SDK => maxprot 3. In order to make
this more flexible we now allow maxprot 3 or 7 on macOS 10.14.

This is just for fixup_macho_commands that just gets used
once for each tool during builds.

3 weeks agoDarwin syswrap: move PRE(mach_voucher_extract_attr_recipe_trap)
Paul Floyd [Thu, 30 Apr 2026 19:43:07 +0000 (21:43 +0200)] 
Darwin syswrap: move PRE(mach_voucher_extract_attr_recipe_trap)

Part of https://bugs.kde.org/show_bug.cgi?id=519604

I think that this was in a >= DARWIN_10_12 #if block, causing
build a build failure on 10.11.

3 weeks agoBug 519613 - Valgrind incorrectly unpacks the result of sys_port (port_getn) on error...
Paul Floyd [Thu, 30 Apr 2026 19:00:55 +0000 (21:00 +0200)] 
Bug 519613 - Valgrind incorrectly unpacks the result of sys_port (port_getn) on error, leading to a ~60s wallclock time delay on every call

Patch provided by Arran Cudbard-Bell <a.cudbardb@freeradius.org>

3 weeks agoBug 519574 - valgrind 3.27 "--fair-sched=yes" does not work
Paul Floyd [Wed, 29 Apr 2026 17:55:13 +0000 (19:55 +0200)] 
Bug 519574 - valgrind 3.27 "--fair-sched=yes" does not work

3 weeks agoBug 519539 - Darwin shm_open mode is optional and depends on oflag
Paul Floyd [Tue, 28 Apr 2026 20:03:22 +0000 (22:03 +0200)] 
Bug 519539 - Darwin shm_open mode is optional and depends on oflag

4 weeks agoDarwin doc: describe apple pointer area and Massif woes
Paul Floyd [Mon, 27 Apr 2026 06:45:40 +0000 (08:45 +0200)] 
Darwin doc: describe apple pointer area and Massif woes

4 weeks agoDarwin suppression: add a suppression for fork on macOS 13
Paul Floyd [Mon, 27 Apr 2026 06:26:27 +0000 (08:26 +0200)] 
Darwin suppression: add a suppression for fork on macOS 13

4 weeks agoDarwin regtest: add missing expected
Paul Floyd [Sun, 26 Apr 2026 11:09:26 +0000 (13:09 +0200)] 
Darwin regtest: add missing expected

4 weeks agoDarwin syswrap: fixes for mach_msg2
Paul Floyd [Sun, 26 Apr 2026 10:10:07 +0000 (12:10 +0200)] 
Darwin syswrap: fixes for mach_msg2

Don't exclude macOS 13, fixes for the POST. Also add a suppression
for this trap when it is called during initialisation.

4 weeks agoDarwin regtest: re-enable none/tests/scripts/shell
Paul Floyd [Sun, 26 Apr 2026 05:37:45 +0000 (07:37 +0200)] 
Darwin regtest: re-enable none/tests/scripts/shell

With a Darwin expected. I may need to add another expected
for older versions of Darwin.

4 weeks agoDarwin suppression: add another suppresion for startup allocations
Paul Floyd [Sun, 26 Apr 2026 05:36:02 +0000 (07:36 +0200)] 
Darwin suppression: add another suppresion for startup allocations

4 weeks agoBump version to 3.28.0.GIT
Paul Floyd [Sat, 25 Apr 2026 06:06:16 +0000 (08:06 +0200)] 
Bump version to 3.28.0.GIT

4 weeks agoRecognize ioctl UFFDIO_* operations users/mcermak/try-bug519223
Martin Cermak [Fri, 24 Apr 2026 11:21:05 +0000 (13:21 +0200)] 
Recognize ioctl UFFDIO_* operations

The userfaultfd* LTP testcases demonstrate how valgrind
isn't aware of the ioctl UFFDIO_* operations.  Teach
Valgrind to recognize those per linux/fs/userfaultfd.c.

https://bugs.kde.org/show_bug.cgi?id=519223

4 weeks agoUse SSizeT for VG_(readlink) result in VG_(realpath)
Mark Wielaard [Wed, 22 Apr 2026 12:15:28 +0000 (14:15 +0200)] 
Use SSizeT for VG_(readlink) result in VG_(realpath)

VG_(readlink) returns a negative value if it fails. Which is checked
for right after the call. But if SizeT is unsigned, so that check
always fails. Use SSizeT instead for the result variable.

5 weeks agoUpdate vg-lifespan (copyright) years
Mark Wielaard [Tue, 21 Apr 2026 00:02:08 +0000 (02:02 +0200)] 
Update vg-lifespan (copyright) years

5 weeks ago-> 3.27.0 final VALGRIND_3_27_0
Mark Wielaard [Mon, 20 Apr 2026 22:40:56 +0000 (00:40 +0200)] 
-> 3.27.0 final

5 weeks agoUpdate NEWS entries
Mark Wielaard [Mon, 20 Apr 2026 15:24:23 +0000 (17:24 +0200)] 
Update NEWS entries

- New VALGRIND_REPLACES_MALLOC and VALGRIND_GET_TOOLNAME client requests.
- Linux lightweight guard pages support (--max-guard-pages=N).
- x86 (32bit) (partial) SSE4.1 instruction support.
- Linux Test Project (LTP) v20260130 was integrated.

5 weeks agoAdd documentation for new client requests in manual-core-adv.xml
Mark Wielaard [Mon, 20 Apr 2026 15:12:10 +0000 (17:12 +0200)] 
Add documentation for new client requests in manual-core-adv.xml

Document VALGRIND_REPLACES_MALLOC and VALGRIND_GET_TOOLNAME.

5 weeks agoSet version to 3.27.0-RC2
Mark Wielaard [Sat, 18 Apr 2026 00:18:20 +0000 (02:18 +0200)] 
Set version to 3.27.0-RC2

5 weeks agoAdd MOVNTDQA SSE4.1 support for x86
Mark Wielaard [Wed, 18 Feb 2026 16:48:15 +0000 (17:48 +0100)] 
Add MOVNTDQA SSE4.1 support for x86

Add handling of MOVNTDQA to VEX/priv/guest_x86_toIR.c based on the
guest_amd64_toIR.c implementation.

Move test_MOVNTDQA from none/tests/amd64/sse4-64.c to
none/tests/sse4-common.h and add the same test to
none/tests/x86/sse4-x86.c with new MOVNTDQA output in stdout.exp.

https://bugs.kde.org/show_bug.cgi?id=516225

5 weeks agoAdd SSE4.1 MPSADBW for x86 32-bit
Alexandra Hájková [Wed, 15 Apr 2026 15:42:38 +0000 (11:42 -0400)] 
Add SSE4.1 MPSADBW for x86 32-bit

Move the MPSADBW computation helper and IR builder from
guest_amd64_helpers.c and guest_amd64_toIR.c into a new
header guest_generic_helpers.h and guest_generic_sse.h,
so the helpers could be shared between x86 and amd64
implementaions.

Move MPSADBW tests into the shared sse4-common.h so they are
also exercised on x86.

BZ: https://bugs.kde.org/show_bug.cgi?id=518216

5 weeks agoDarwin suppressions and massif ignore function
Paul Floyd [Thu, 16 Apr 2026 19:25:08 +0000 (21:25 +0200)] 
Darwin suppressions and massif ignore function

Suppresss a few more still reachables. Suppress a Helgrind race in
getaddrinfo. Add another massif --ignore-fn.

5 weeks agoAdd PCMPEQQ SSE4.1 support for x86
Mark Wielaard [Thu, 12 Mar 2026 00:22:32 +0000 (01:22 +0100)] 
Add PCMPEQQ SSE4.1 support for x86

Add handling of PCMPEQQ to VEX/priv/guest_x86_toIR.c based on the
guest_amd64_toIR.c implementation. Handle Iop_CmpEQ64x2 using
h_generic_calc_CmpEQ64x2 in VEX/priv/host_x86_isel.c.

Move test_PCMPEQQ from none/tests/amd64/sse4-64.c to
none/tests/sse4-common.h and add the same test to
none/tests/x86/sse4-x86.c with new PCMPEQQ output in stdout.exp.

https://bugs.kde.org/show_bug.cgi?id=517455

5 weeks agoDarwin massif: another load of functions to ignore for macOS 10.14
Paul Floyd [Thu, 16 Apr 2026 06:56:54 +0000 (08:56 +0200)] 
Darwin massif: another load of functions to ignore for macOS 10.14

overloaded-new is still failing due to a 64byte allocation diff that
is hiding somewhere.

5 weeks agoDarwin distribution: add m_mach/priv_dyld_internals.h to noinst_HEADERS
Paul Floyd [Wed, 15 Apr 2026 19:37:41 +0000 (21:37 +0200)] 
Darwin distribution: add m_mach/priv_dyld_internals.h to noinst_HEADERS

This caused build failure of 3.27 RC1 on macOS 11 to 13.

5 weeks agos390: Bug fix in insn selection
Florian Krohm [Tue, 14 Apr 2026 21:36:18 +0000 (21:36 +0000)] 
s390: Bug fix in insn selection

The bug was introduced in b3830b82f4 and exposed by GCC when compiling
with -g (without -O2). Here's the thing:

      if (expr->Iex.Binop.op == Iop_Add64) {
--->     ULong disp = arg2->Iex.Const.con->Ico.U64;
         if (arg2->tag == Iex_Const && ulong_fits_signed_20bit(disp)) {
            h1 = s390_isel_int_expr(env, arg1);

This possibly segfaults when arg2 is not a constant.
Optimising GCC figures it can first check arg2->tag == Iex_Const
which is cheaper than disp = arg2->Iex.Const.con->Ico.U64;
Nice one.

Regtested with both default compiler flags and -g only.

5 weeks agoBug 518951: Fix the fsconfig() syscall retval
Martin Cermak [Tue, 14 Apr 2026 19:48:05 +0000 (21:48 +0200)] 
Bug 518951: Fix the fsconfig() syscall retval

Make the fsconfig02 LTP testcase happy by fixing the
fsconfig() retval.

https://bugs.kde.org/show_bug.cgi?id=518951

5 weeks agoSoalris regtest: remove unused expected
Paul Floyd [Tue, 14 Apr 2026 19:14:23 +0000 (21:14 +0200)] 
Soalris regtest: remove unused expected

With the previous commit one expected is no longer needed since
Solaris now generates callstacks similar to other OSes.

5 weeks agoSolaris helgrind wrapper and regtest
Paul Floyd [Tue, 14 Apr 2026 19:01:21 +0000 (21:01 +0200)] 
Solaris helgrind wrapper and regtest

Modify the pthread_rwlock_init wrapper so that it is similar
to other OSes (it was not using a _WRK function). Update the
Solaris stderr filter and one Solaris specific expexted.

5 weeks agos390x: Update some IBM copyright notices
Andreas Arnez [Tue, 14 Apr 2026 11:38:11 +0000 (13:38 +0200)] 
s390x: Update some IBM copyright notices

Some of the copyright notices in `*s390*' source files were really
outdated.  Fix this.

5 weeks agoFreeBSD suppression: broaden rtld sigprocmask param suppression
Paul Floyd [Tue, 14 Apr 2026 06:05:52 +0000 (08:05 +0200)] 
FreeBSD suppression: broaden rtld sigprocmask param suppression

Make sure that it suppresses even if rtld debuginfo is not
installed.

5 weeks agoUpdate copyright notices in FreeBSD-related source files
Paul Floyd [Tue, 14 Apr 2026 05:46:09 +0000 (07:46 +0200)] 
Update copyright notices in FreeBSD-related source files

5 weeks agoUpdate Valgrind and Tool printed copyright years
Paul Floyd [Tue, 14 Apr 2026 05:29:18 +0000 (07:29 +0200)] 
Update Valgrind and Tool printed copyright years

I've limited this to only those that have changed since the last
copyright year update.

6 weeks agoSet version to 3.27.0-RC1
Mark Wielaard [Tue, 14 Apr 2026 00:34:26 +0000 (02:34 +0200)] 
Set version to 3.27.0-RC1

6 weeks agoUpdate libiberty demangler
Mark Wielaard [Tue, 14 Apr 2026 00:26:44 +0000 (02:26 +0200)] 
Update libiberty demangler

Update the libiberty demangler using the auxprogs/update-demangler
script to gcc git commit a8290fb163443276c3df6b20024c6874f93c560c.

This update includes:

- Fix resource exhaustion in rust demangler (PR demangler/106641)
- Update copyright years.

6 weeks agohelgrind: add --track-destroy command line option
Aaron Merey [Mon, 13 Apr 2026 03:46:19 +0000 (23:46 -0400)] 
helgrind: add --track-destroy command line option

Add --track-destroy=no|yes|all that if enabled warns if
pthread_mutex_init or pthread_rwlock_init is called using a guest
address that helgrind has already associated with another rwlock or
mutex, suggesting a missing pthread_*_destroy call.

Additionally if --track-destroy=all, then at process exit
helgrind will report all rwlocks and mutexes that were explicitly
initialized but never destroyed.

This option defaults to off since missing calls to pthread_*_destroy
are not necessarily bugs.  Locks that weren't explicitly initialized
are skipped to reduce the number of spurious warnings.

6 weeks agohelgrind: fix lock-kind mismatch assert failure
Aaron Merey via Valgrind-developers [Mon, 13 Apr 2026 03:46:18 +0000 (23:46 -0400)] 
helgrind: fix lock-kind mismatch assert failure

tl_assert(lk->kind == LK_rdwr) in evhH__post_thread_r_acquires_lock
may fail in cases where memory containing an rwlock or mutex is
reused for a lock of a different kind without having called
pthread_*_destroy on the first lock.

Fix this by having map_locks_lookup_or_create detect when a lock kind at
a given guest address has changed from an rwlock to mutex or mutex to
rwlock.  The old lock record is removed and a new one is added reflecting
the current lock kind.

https://bugs.kde.org/show_bug.cgi?id=513598

6 weeks agohelgrind: add --show-events debug cmdline option
Aaron Merey via Valgrind-developers [Mon, 13 Apr 2026 03:46:17 +0000 (23:46 -0400)] 
helgrind: add --show-events debug cmdline option

SHOW_EVENTS in hg_main.c controls whether helgrind prints a trace of its
internal synchronization, threading and memory events.  It is set to 0
by default to disable the trace and the only way to enable it is to
modify the source code and rebuild valgrind.

This patch replaces SHOW_EVENTS with clo_show_events that is set using
the new helgrind cmdline option --show-events.  Information about this
option is included under helgrind's --help-debug.

6 weeks agoDarwin regtest: add an expected for drd tc22_exit_w_lock
Paul Floyd [Mon, 13 Apr 2026 06:29:30 +0000 (08:29 +0200)] 
Darwin regtest: add an expected for drd tc22_exit_w_lock

The callstack is much the same as the Solaris expected, just with
an extre 'kill()'.

6 weeks agoBug 518609 - Setting double verbose interferes with symbol loading (FreeBSD 16)
Paul Floyd [Sun, 12 Apr 2026 19:44:45 +0000 (21:44 +0200)] 
Bug 518609 - Setting double verbose interferes with symbol loading (FreeBSD 16)

More complete fix, not just libc.

6 weeks agoFreeBSD regtest: add a (below main) filter for one of the massif tests.
Paul Floyd [Sun, 12 Apr 2026 14:36:27 +0000 (16:36 +0200)] 
FreeBSD regtest: add a (below main) filter for one of the massif tests.

deep-D.post.out did contain "__libc_start1 (worktrees/main/lib/libc/csu/libc_start1.c:180)"
rather than "(below main)"

(on FreeBSD 16).

6 weeks agoBug 518609 - Setting double verbose interferes with symbol loading (FreeBSD 16)
Paul Floyd [Sat, 11 Apr 2026 19:55:26 +0000 (21:55 +0200)] 
Bug 518609 - Setting double verbose interferes with symbol loading (FreeBSD 16)

This change uses the same forced loading of libc.so as Linux uses.
Each OS has its own version for libc.so (6 for Linux, 7 for FreeBSD,
1 for Solaris and Darwin has a completely different system).

This papers over the real problem - a split debug file is being treated like
an ELF object.

6 weeks agoFreeBSD suppression: sigprocmask param from rtld
Paul Floyd [Sat, 11 Apr 2026 17:50:47 +0000 (19:50 +0200)] 
FreeBSD suppression: sigprocmask param from rtld

Intermittent and difficult to reproduce.

Hopefully this will resolve thread_alloca and/or
lsframe1 regtest fails (as well as false positives
in the real world).

6 weeks agoFreeBSD regtest: make timing_safe more consistent
Paul Floyd [Sat, 11 Apr 2026 15:09:52 +0000 (17:09 +0200)] 
FreeBSD regtest: make timing_safe more consistent

This test was failing on FreeeBSD 16 arm64. I don't think that
it's anything that has changed, just that the test was flaky.

The problem is in the MEMCMP replacement code which has a word
alignment check before doing word sized comparisons. The test
was comparing a string literal on the stack with an strdup'd
copy. strdup should give 8/16 byte alignment for 32bit/64bit
platforms. There's no guarantee for the string literal.

To make this stable I've changed the literal from pointer to
alignas(16) array and replaced the strdup with aligned_alloc and
memcpy. I've also added asserts that the stack and heap addresses
16byte aligned.

6 weeks agoTestsuite: Patch the LTP sources to fix compile time problem
Martin Cermak [Fri, 10 Apr 2026 13:02:40 +0000 (15:02 +0200)] 
Testsuite:  Patch the LTP sources to fix compile time problem

Patch ltp-full-20260130.tar to fix openat2() compile time problem.

6 weeks agoDRD: remove a couple of unused function prototypes
Paul Floyd [Thu, 9 Apr 2026 18:31:02 +0000 (20:31 +0200)] 
DRD: remove a couple of unused function prototypes

6 weeks agoFreeBSD regtest: rename a C variable
Paul Floyd [Wed, 8 Apr 2026 06:30:45 +0000 (08:30 +0200)] 
FreeBSD regtest: rename a C variable

One FreeBSD test was using a varaible called 'nullptr'.
clang 22 now complains about that because it is a reserved
keyword in C 23. Rename it to 'nullpointer'.

6 weeks agoDarwin syswrap: add a wrapper for persona
Paul Floyd [Tue, 7 Apr 2026 20:21:53 +0000 (22:21 +0200)] 
Darwin syswrap: add a wrapper for persona

7 weeks agos390: Fix s390_emit_IPM which has one (not two) register operands.
Florian Krohm [Mon, 6 Apr 2026 20:04:18 +0000 (20:04 +0000)] 
s390: Fix s390_emit_IPM which has one (not two) register operands.

This has been wrong (in a harmless way) since day #1.

7 weeks agoFreeBSD helgrind: add a suppression for ostream padding
Paul Floyd [Mon, 6 Apr 2026 13:59:53 +0000 (15:59 +0200)] 
FreeBSD helgrind: add a suppression for ostream padding