[libc] Disable hermetic version of printf_core.parser_test (#215037)
It fails on amdgpu:
https://lab.llvm.org/buildbot/#/builders/10/builds/33548
ld.lld: error: undefined symbol: operator delete(void*, unsigned long,
std::align_val_t)
This effectively reverts a part of #213852.
[clang] Simplify the overload resolution logic for operator new and new[] (#211482)
This PR replaces the current spec-equivalent argument list mutation with
direct iteration of the correctly ordered set of argument lists for a
given allocation.
This adds a bit of architectural work around the argument list
construction but the overall effect is substantially simplified search
of the overload candidates
LLM usage: Claude found align_val_t caching bug, and found and created a
test for reentrant `getTypeIdentityArgument`+`tryBuildStdTypeIdentity`
[flang] To fix LIT test that AIX does not emit comdat. (#214950)
PR #213890 added this new LIT test.
However, AIX uses XCOFF and does not emit COFF COMDAT.
Merge tag 'x86-urgent-2026-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
- Fix MCE CMCI discovery initialization ordering bug (Breno Leitao)
* tag 'x86-urgent-2026-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Set up the polling timer before CMCI discovery
Merge tag 'locking-urgent-2026-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex fix from Ingo Molnar:
- Fix race in futex_pivot_pending() during private hash resize
that can cause stuck tasks (Yao Kai)
* tag 'locking-urgent-2026-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Fix race in futex_pivot_pending() during private hash resize
Merge tag 'usb-7.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt fixes from Greg KH:
"Here are some small USB and Thunderbolt driver fixes for 7.2-rc7 that
resolve some reported issues. Included in here are:
- new quirk for some broken USB devices
- thunderbolt device fixes for reported issues
- usb gadget driver fix
- usb atm driver fix
- xhci driver fixes.
- other minor USB driver fixes
All of these have been in linux-next this week with no reported
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Merge tag 'tty-7.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial / vt driver fixes from Greg KH:
"Here are some small serial and vt tty driver fixes for 7.2-rc7 that
resolve some reported problems. Included in here are:
- two vt core fixes
- amba-pl011 serial driver fixes
- 8250_of and 8250_dma driver fixes
- qcom-geni serial driver fix
- sc16is7xx serial driver fix
All of these have been in linux-next this week with no reported
issues"
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[InstCombine] Use DenseMap instead of MapVector (NFC) (#214536)
WorkMap is accessed only via MapVector::operator[] and lookup.
This patch changes its type to DenseMap to avoid populating the vector
portion of MapVector.
Merge tag 'staging-7.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some more small staging driver fixes, just for the rtl8723bs
driver, for some reported problems found with it now that people are
starting to actually test the thing with "bad" networks.
Nothing major, but good to have in the -final release. All of these
have been in linux-next for over a week with no reported problems"
* tag 'staging-7.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: rtl8723bs: validate monitor transmit frame lengths
staging: rtl8723bs: fix missing shared-key auth challenge length check
staging: rtl8723bs: fix OOB read in WMM_param_handler()
staging: rtl8723bs: fix OOB read in rtw_get_wpa_ie()
Merge tag 'char-misc-7.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc and documentation fixes from Greg KH:
"Here are some small char/misc and nvmem and documentation fixes for
7.2-rc7 to resolve some reported issues. Included in here are:
- updates to the documentation for the kernel threat model and
security bugs to get the LLMs to actually follow what we have been
asking them to do (i.e. not claim security issues for things we do
not consider security issues.)
- nvmem driver fixes which required a tiny "layout" driver to be
added.
- fastrpc driver fixes
- mei driver fix
- counter driver fix
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DAG: Gracefully diagnose missing lrint/llrint/lround/llround libcall
Avoid hitting the fatal error in makeLibCall by emitting a diagnostic
if the library call is unsupported.
Co-authored-by: Claude (Claude-Opus-4.8) <noreply at anthropic.com>
[libc] Enable most tests in hermetic mode (#213852)
This is mostly a straightforward search&replace, as I've addressed the
blockers in previous patches. The nontrivial parts are:
- adding a SUITE to a single (FP) test which doesn't have it (turns out
hermetic tests require a SUITE argument)
- using APPEND_LIBC_TESTS in a couple of tests creating files (to avoid
races between unit and hermetic versions)
- renaming add_libc_unittest to _add_libc_unittest to prevent accidental
creations of non-hermetic tests (one can still use the UNIT_TEST_ONLY
arg to add_libc_test to achieve this effect)
[clang] Simplify the overload resolution logic for operator new and new[]
This PR replaces the current spec-equivalent argument list mutation with
direct iteration of the correctly ordered set of argument lists for a
given allocation.
This adds a bit of architectural work around the argument list construction
but the overall effect is substantially simplified search of the overload
candidates.
* We now simply enumerate correctly ordered candidates for the implicit
arguments. This means no more re-entrant modification of the argument
list to handle addition and removal of type-identity or alignment
parameters.
* We no longer mutate the primary LookupResult when attempting the MSVC
array fallback. This also lays the groundwork for correct diagnostics
of such cases. For now we have a minor improvement of correctly
reporting the operator we were trying to resolve originally, and tell
the user that we have attempted the MSVC fallback if applicable.
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