Stefan Liebler b9579342c6 Remove support for lock elision. ... The support for lock elision was already deprecated with glibc 2.42: commit 77438db8cf "Mark support for lock elision as deprecated." See also discussions: https://sourceware.org/pipermail/libc-alpha/2025-July/168492.html This patch removes the architecture specific support for lock elision for x86, powerpc and s390 by removing the elision-conf.h, elision-conf.c, elision-lock.c, elision-timed.c, elision-unlock.c, elide.h, htm.h/hle.h files. Those generic files are also removed. The architecture specific structures are adjusted and the elision fields are marked as unused. See struct_mutex.h files. Furthermore in struct_rwlock.h, the leftover __rwelision was also removed. Those were originally removed with commit 0377a7fde6 "nptl: Remove rwlock elision definitions" and by chance reintroduced with commit 7df8af43ad "nptl: Add struct_rwlock.h" The common code (e.g. the pthread_mutex-files) are changed back to the time before lock elision was introduced with the x86-support: - commit 1cdbe57948 "Add the low level infrastructure for pthreads lock elision with TSX" - commit b023e4ca99 "Add new internal mutex type flags for elision." - commit 68cc29355f "Add minimal test suite changes for elision enabled kernels" - commit e8c659d74e "Add elision to pthread_mutex_{try,timed,un}lock" - commit 49186d21ef "Disable elision for any pthread_mutexattr_settype call" - commit 1717da59ae "Add a configure option to enable lock elision and disable by default" Elision is removed also from the tunables, the initialization part, the pretty-printers and the manual. Some extra handling in the testsuite is removed as well as the full tst-mutex10 testcase, which tested a race while enabling lock elision. I've also searched the code for "elision", "elide", "transaction" and e.g. cleaned some comments. I've run the testsuite on x86_64 and s390x and run the build-many-glibcs.py script. Thanks to Sachin Monga, this patch is also tested on powerpc. A NEWS entry also mentions the removal. Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>		2025-11-18 14:21:13 +01:00
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bits	…
fpu	math: Don't redirect inlined builtin math functions	2025-11-17 11:17:07 -03:00
nofpu	math: Add fetestexcept internal alias	2025-09-11 14:46:07 -03:00
nptl	Remove support for lock elision.	2025-11-18 14:21:13 +01:00
power4	…
power6	…
powerpc32	powerpc: Consolidate atomic-machine.h	2025-11-04 04:14:01 -03:00
powerpc64	Change fromfp functions to return floating types following C23 (bug 28327)	2025-11-13 00:04:21 +00:00
sys/platform	…
Makefile	…
Versions	…
abort-instr.h	…
dl-diagnostics-cpu.c	…
dl-lookupcfg.h	…
dl-procinfo.c	…
dl-tls.c	…
dl-tls.h	…
dl-tunables.list	…
elf-initfini.h	…
fpu_control.h	…
gccframe.h	…
hwcapinfo.c	…
hwcapinfo.h	…
ifunc-sel.h	…
jmpbuf-offsets.h	…
jmpbuf-unwind.h	…
ldsodefs.h	…
libc-tls.c	…
locale-defines.sym	…
longjmp.c	…
machine-gmon.h	…
math-tests-snan-cast.h	…
math-use-builtins-ffs.h	…
mod-cache-ppc.c	…
mod-tlsopt-powerpc.c	…
novmx-longjmp.c	…
novmx-sigjmp.c	…
novmxsetjmp.h	…
preconfigure	…
preconfigure.ac	…
rtld-global-offsets.sym	…
sigjmp.c	…
sotruss-lib.c	…
string-fza.h	…
sysdep.h	…
test-arith.c	…
test-arithf.c	…
test-get_hwcap-static.c	…
test-get_hwcap.c	…
test-gettimebase.c	…
thread_pointer.h	…
tst-cache-ppc-static-dlopen.c	…
tst-cache-ppc-static.c	…
tst-cache-ppc.c	…
tst-set_ppr.c	…
tst-stack-align.h	…
tst-tlsifunc-static.c	…
tst-tlsifunc.c	…
tst-tlsopt-powerpc.c	…
utmp-size.h	…