[flang][cuda] Keep descriptors of pinned allocatables in host memory (#229161)
Pinned variables are host only variables. There is no need for the
descriptor of a pinned variable to be allocated in managed memory like
for device or managed variable. Keep pinned descriptor on in host
memory.
[libcxx] Also ignore -Wshift-count-overflow in clang (#229087)
Clang now also diagnoses this. Also suppress the warning in clang so
that the build still passes (given it is -Werror by default). This
started happening with the release version of clang 23.
www/fcgiwrap: Fix various issues with multiple children and rc.d.
- With `-c <n>', don't start spinning the CPU at 100% from the time
the first child exits to the time the operator gives up and kills
fcgiwrap altogether.
- Fix races with SIGCHLD handler.
- Allow rc.d script to spawn multiple children with new
`fcgiwrap_nchildren' option (default 1).
- Redirect stdin from /dev/null, at least, in rc.d script, in lieu of
either
(a) proper daemonization and syslogging or
(b) running under a process supervisor.
PR pkg/60853: www/fcgiwrap rc.d woes
graphics/fotocx: update the port to the latest version 26.8.1
- libchamplain had been replaced with webkit2gtk-4.1 which is better
maintained upstream and has better functionality than libchamplain
- Because webkit2gtk-4.1 is rather heavy dependency, make the world
map feature optional, but enabled by default so package users can
enjoy the program's full functionality (discussed with the author)
- Whack one more case of linuxish `/proc/self/exe' usage and provide
better uninstall instructions while here
Reported by: portscout
[NFC][TSan] Move ObtainCurrentStack out of ThreadRegistryLock scope (#228794)
ObtainCurrentStack only reads the current thread's shadow stack and
allocates a VarSizeStackTrace buffer, which does not require
ThreadRegistryLock (and already runs outside ThreadRegistryLock in
ReportRace, SignalUnsafeCall, and ReportErrnoSpoiling).
Move ObtainCurrentStack (and dummy_pc in ReportDeadlock) before
ScopedReport in ReportMutexHeldWrongContext, ReportMutexMisuse,
ReportDeadlock, and ReportDestroyLocked so the stack trace buffers also
outlive ScopedReport and OutputReport (needed by #228795).
Assisted-by: Gemini
Merge tag 'keys-v7.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull keys fixes from Jarkko Sakkinen:
- key_get_persistent() created a new persistent keyring if one did not
exist, but failed to set a timeout on it in an error path, preventing
GC.
Call key_set_timeout() regardless of key_link() result if a
persistent keyring was created.
- __key_create_or_update() made a copy of keyring->restrict_link before
holding keyring->sem, which could cause add_key() to be executed
against stale keyring restrictions. Fix it by copying the value only
after taking keyring->sem
* tag 'keys-v7.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
KEYS: Fix add_key() race with keyring restriction
keys: finalize persistent keyring timeout after link attempt
[GVN] Preserve !prof metadata when materializing select for load PRE
Pass the originating SelectInst through PHITransAddr, MemoryDependenceAnalysis,
and GVN so AvailableValue::MaterializeAdjustedValue can copy its profile
metadata when creating the replacement value select.
[flang][PPC] Implement ieee_set_flag for Linux (#224039)
This patch implements the Linux PPC specific lowering for
`ieee_set_flag`.
Calling `feraiseexcept()` may deliver `SIGFPE` when the corresponding
floating-point exception trap is enabled. To avoid this, the lowering
updates the FPSCR exception status bits directly using
`llvm.ppc.readflm` and `llvm.ppc.setflm`.
Assisted-By: IBM Bob
[libFuzzer] Stop fuzzing if no new corpus were found within a specified period (#176177)
This patch adds a new command-line option `-stale_corpus_timeout=N`
which allows you to specify that the fuzzer should exit if it hasn't
found a new corpus within a certain amount of time. It also adds to
stats how many seconds a new path has not been found. An analog of
`AFL_EXIT_ON_TIME`.
sendfile: Fix build for kernels without INET or INET6
Don't cap the new low watermark to a TCP-specific setting in kernels
without TCP.
Fixes: 6948f4d5e2b2 ("sendfile: keep the lowat hack more conservative")
zstream: Downgrade -Watomic-alignment to a warning
Don't complain about unaligned atomic operations on i386. This
same approach is already used for libspl.
[NFC][TSan] Use in-class member initializers in tsan_report.h (#228780)
Use in-class member initializers for all structs and classes in
tsan_report.h and default constructors and destructor in
tsan_report.cpp.
Assisted-by: Gemini
[NFC][mlir][tosa] Use optnone for compliance initialization under ASan (#229292)
Similar to #223586 and #226310, compiling the ~5,000-line generated
initializer in `TosaProfileCompliance::TosaProfileCompliance()` is also
very slow under AddressSanitizer.
Mark the constructor with `optnone` under `LLVM_ADDRESS_SANITIZER_BUILD`
as well to skip expensive optimization and register allocation passes.
Assisted-by: Gemini
[X86] Let RegAllocFast lower tied operands (#228968)
... so the -O0 pipeline no longer runs TwoAddressInstructionPass.
Follow-ups will enable this for all targets that don't insert passes
with the TwoAddressInstructinPassID anchor.
https://llvm-compile-time-tracker.com/compare.php?from=8ad6c581709df648a2a1e468031a81106a7e00b4&to=33ea7b07c99b9a37f72409029867c50bd1d22a52&stat=instructions:u
-O0 -g, instructions:u geomean: -0.83% (stage1) and -0.85% (stage2).
In a llvm-test-suite build, 2088 of 2563 executables have identical
.text, while 400 have few instructions in total (-0.008%). None gained
extra instructions.
With -O2 -mllvm -regalloc=fast, .text shrinks by 0.12% but the
instruction count grows by 0.09%: RegAllocFast does not convert to
three-address form, so where a tied source stays live,
`leaq 1(%rsi), %rax` becomes `movq %rsi, %rax; incq %rax`.
Test updates:
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[alpha.webkit.NoDeleteChecker] Handle CXXStdInitializerListExpr in trivial analysis (#224723)
TrivialFunctionAnalysisVisitor had no handler for
CXXStdInitializerListExpr, so a braced list bound to a
std::initializer_list fell through to VisitStmt and was conservatively
treated as non-trivial. This made any nodelete function containing e.g.
std::min({a, b, c}) report that it "contains code that could destruct an
object".
The backing array of a std::initializer_list is a temporary whose
lifetime ends in the enclosing function, so its elements really are
destructed there. Accept the node when the array's element type is
trivially destructible and recurse into the initializers, and keep
rejecting it otherwise.
[clang] Pass only CVR array index qualifiers to ASTContext (#225582)
ArrayType stores only the CVR index qualifiers, but array declarators
may also pass `__unaligned` or `_Atomic`, so getIncompleteArrayType and
getDependentSizedArrayType insert nodes whose profile doesn't match the
lookup. Mask the qualifiers in BuildArrayType and assert in ArrayType.
Fixes #223150
Aided by Opus 5.5
[SanitizerCoverage] Don't create comdat for unnamed functions (#228959)
MergeFunctions::mergeTwoFunctions may turn identical functions into a
private unnamed function, which trips `assert(F.hasName())`. Without
assertions, all unnamed functions share an empty-name IR comdat (which
yields no ELF section group per MCContext::getELFSection).
Fix #228820: Just drop comdat for unnamed functions. SanitizerCoverage
then retains the metadata sections via `llvm.used`. It's acceptable to
have redundat metadata sections with discarded associated text sections.
Improve comments at https://reviews.llvm.org/D97430 modified code.
[ELF] Error on non-TLS definition with TLS reference (#228658)
postParse() reports an error when a TLS definition has a non-TLS
reference. Extend it to cover non-TLS definition with a TLS reference,
which GNU ld also errors.
Before LTO, a TLS definition in a bitcode module asm still has a type of
STT_NOTYPE. Exempt TLS references in this case.
RelocScan-time error checking is not useful - assemblers set STT_TLS
when a symbol is used by a TLS relocation.
