pkg_abi.c: simplify os_string_table
Make it an array with pkg_os indexes eliminating the need to search for
the pkg_os and returning the index when searching by string.
pkg_abi.c: mostly centralize OS bits
Convert os_string_table into an OS table with things previously handled
by functions with case statements. This should be must more downstream
friendly.
pkg_abi.c: simplify arch_string_table
Make it an array with pkg_arch indexes eliminating the need to search
for the pkg_arch and returning the index when searching by string.
pkg_abi.c: simplify architecture translation
Use the array size instead of a NULL sentinal to terminate iteration.
Remove the named type since we're only using the array twice in a single
loop.
Fix mismerge of the arm64 / timer-core interrupt handling changes
Commit c43267e6794a ("Merge tag 'arm64-upstream' of git://...") had a
conflict in the irq entry/exit code due to commit c5538d0141b3 ("entry:
Split kernel mode logic from irqentry_{enter,exit}()") having moved the
core code in irqentry_enter/exit() from kernel/entry/common.c into
helper inline functions in include/linux/irq-entry-common.h.
On the other side of the merge, the timer-core code had introduced
deferred hrtimer rearming infrastructure in commit 0e98eb14814e ("entry:
Prepare for deferred hrtimer rearming"), adding two calls to
hrtimer_rearm_deferred() in irqentry_enter().
When merging the two, moving the two calls to the new location wasn't a
problem, but afterwards I had made the mistake of looking what had
happened in linux-next. And linux-next had a very different merge
resolution in commit 04f02dc3ea74 ("Merge tag 'entry-for-arm64-26-04-08'
into sched/hrtick"), which had unified the two calls into one single
call-site in irqentry_exit_to_kernel_mode_preempt().
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[Hexagon] Add LTO options to Hexagon driver link args (#191336)
The Hexagon driver's constructHexagonLinkArgs() was not calling
addLTOOptions(). This meant that LTO plugin options weren't forwarded to
the linker.
This caused a crash when using ThinLTO with -fenable-matrix on
llvm-test-suite/SingleSource/UnitTests/matrix-types-spec.cpp:
LowerMatrixIntrinsicsPass did not run in the LTO backend because
-enable-matrix was not forwarded via -plugin-opt.
Add the addLTOOptions() call to both the musl and bare-metal code paths
in constructHexagonLinkArgs().
tests/lint: increase test timeout for pmax
The lint1 test timed out after 300 seconds, reaching msg_333. 400
seconds should be enough to reach all test cases.
asmc: add raw SMC key read/write interface
This patch adds a debugging interface to read and write arbitrary
Apple SMC keys by name through sysctl, enabling hardware exploration
and control of undocumented features.
The interface provides four sysctls under dev.asmc.0.raw.*:
- key - Set the 4-character SMC key name (e.g., "AUPO")
- value - Read/write key value as a hex string
- len - Auto-detected key value length (can be overridden)
- type - Read-only 4-character type string (e.g., "ui8", "flt")
Implementation includes a new asmc_key_getinfo() function using SMC
command 0x13 to query key metadata. The interface automatically
detects key lengths and types, uses hex string encoding for
arbitrary binary values, and is safe for concurrent access via
CTLFLAG_NEEDGIANT.
This interface was essential for discovering that the AUPO key
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asmc: add raw SMC key read/write interface
This patch adds a debugging interface to read and write arbitrary
Apple SMC keys by name through sysctl, enabling hardware exploration
and control of undocumented features.
The interface provides four sysctls under dev.asmc.0.raw.*:
- key - Set the 4-character SMC key name (e.g., "AUPO")
- value - Read/write key value as a hex string
- len - Auto-detected key value length (can be overridden)
- type - Read-only 4-character type string (e.g., "ui8", "flt")
Implementation includes a new asmc_key_getinfo() function using SMC
command 0x13 to query key metadata. The interface automatically
detects key lengths and types, uses hex string encoding for
arbitrary binary values, and is safe for concurrent access via
CTLFLAG_NEEDGIANT.
This interface was essential for discovering that the AUPO key
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Merge tag 'kernel-7.1-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull pid_namespace updates from Christian Brauner:
- pid_namespace: make init creation more flexible
Annotate ->child_reaper accesses with {READ,WRITE}_ONCE() to protect
the unlocked readers from cpu/compiler reordering, and enforce that
pid 1 in a pid namespace is always the first allocated pid (the
set_tid path already required this).
On top of that, allow opening pid_for_children before the pid
namespace init has been created. This lets one process create the pid
namespace and a different process create the init via setns(), which
makes clone3(set_tid) usable in all cases evenly and is particularly
useful to CRIU when restoring nested containers.
A new selftest covers both the basic create-pidns-then-init flow and
the cross-process variant, and a MAINTAINERS entry for the pid
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[flang][cuda] Fix ignore_tkr(m) to also cover CUDA unified attribute (#192131)
The ignore_tkr(m) directive suppresses CUDA managed attribute checking
on dummy arguments, but it was not covering the unified attribute. This
caused a spurious error when passing a plain host array to a unified
dummy with ignore_tkr(m):
```
error: dummy argument 'x=' has ATTRIBUTES(UNIFIED) but its associated actual argument has no CUDA data attribute
```
Extend the IgnoreTKR::Managed check in AreCompatibleCUDADataAttrs to
accept Unified in addition to Managed and no-attribute.
