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glibc/sysdeps/riscv
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Adhemerval Zanella 7fec8a5de6 Revert __HAVE_64B_ATOMICS configure check 
The 53807741fb added a configure check
for 64-bit atomic operations that were not previously enabled on some
32-bit ABIs.

However, the NPTL semaphore code casts a sem_t to a new_sem and issues
a 64-bit atomic operation for __HAVE_64B_ATOMICS.  Since sem_t has
32-bit alignment on 32-bit architectures, this prevents the use of
64-bit atomics even if the ABI supports them.

Assume 64-bit atomic support from __WORDSIZE, which maps to how glibc
defines it before the broken change.  Also rename __HAVE_64B_ATOMICS
to USE_64B_ATOMICS to define better the flag meaning.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>
 		2025-11-14 14:05:20 -03:00
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bits Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
multiarch riscv: memcpy_noalignment: Reorder to store via a3, then bump a3 2025-10-30 17:49:21 -05:00
nofpu math: Refactor how to use libm-test-ulps 2025-03-12 13:40:07 -03:00
nptl Move <thread_pointer.h> to kernel-independent sysdeps directories 2025-01-09 19:30:16 +01:00
rv32 Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
rv64 Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
rvd math: Refactor how to use libm-test-ulps 2025-03-12 13:40:07 -03:00
rvf math: Add fetestexcept internal alias 2025-09-11 14:46:07 -03:00
sys Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
Implies
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Makefile
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__longjmp.S Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
atomic-machine.h Revert __HAVE_64B_ATOMICS configure check 2025-11-14 14:05:20 -03:00
bsd-_setjmp.c
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bsd-setjmp.c
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configure Convert to autoconf 2.72 (vanilla release, no distribution patches) 2024-06-17 21:15:28 +02:00
configure.ac
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dl-irel.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dl-link.sym
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dl-machine.h RISC-V: Fix IFUNC resolver cannot access gp pointer 2025-02-25 13:08:53 +01:00
dl-relocate-ld.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dl-tls.h Add missing include guards to <dl-tls.h> 2025-01-10 19:02:47 +01:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
e_sqrtl.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
fpu_control.h Fix RISC-V soft-float _FPU_SETCW for GCC 16 set-but-not-used warnings 2025-09-13 07:11:44 -07:00
gccframe.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
ldsodefs.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
libc-tls.c elf: Remove the remaining uses of GET_ADDR_OFFSET 2025-01-02 13:45:27 +01:00
linkmap.h
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machine-gmon.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
math-tests-snan-payload.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
math-tests-trap.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
math-use-builtins-ffs.h RISC-V: Use builtin for ffs and ffsll while supported extension available 2025-04-28 09:51:59 -03:00
preconfigure riscv: Add vector registers to __SYSCALL_CLOBBERS 2025-11-04 09:18:56 -06:00
preconfigure.ac riscv: Add vector registers to __SYSCALL_CLOBBERS 2025-11-04 09:18:56 -06:00
riscv-ifunc.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
setjmp.S Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sfp-machine.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sotruss-lib.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
start.S Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
string-fza.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
string-fzi.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
string-misc.h riscv: Add Zbkb optimized repeat_bytes helper 2025-10-31 16:23:57 -05:00
thread_pointer.h Move <thread_pointer.h> to kernel-independent sysdeps directories 2025-01-09 19:30:16 +01:00
tininess.h
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tst-audit.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
utmp-size.h
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