From 9bdb1487c5707a4f8151f60bf2c5969ad205701e Mon Sep 17 00:00:00 2001 From: John David Anglin Date: Sun, 22 Dec 2024 09:51:54 -0500 Subject: [PATCH] =?UTF-8?q?=EF=BB=BFhppa:=20add=20cacheflush()=20syscall?= =?UTF-8?q?=20wrapper?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The hppa Linux kernel supports the cacheflush() syscall since version 6.5. This adds the glibc syscall wrapper. Signed-off-by: Helge Deller --- v2: This patch was too late in release cycle for GLIBC_2.40, so update now to GLIBC_2.41 instead. --- sysdeps/unix/sysv/linux/hppa/Makefile | 5 +++ sysdeps/unix/sysv/linux/hppa/Versions | 3 ++ sysdeps/unix/sysv/linux/hppa/libc.abilist | 1 + sysdeps/unix/sysv/linux/hppa/sys/cachectl.h | 36 +++++++++++++++++++++ sysdeps/unix/sysv/linux/hppa/syscalls.list | 1 + 5 files changed, 46 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/hppa/sys/cachectl.h diff --git a/sysdeps/unix/sysv/linux/hppa/Makefile b/sysdeps/unix/sysv/linux/hppa/Makefile index 2e031e2f8a..9eebe8e0e7 100644 --- a/sysdeps/unix/sysv/linux/hppa/Makefile +++ b/sysdeps/unix/sysv/linux/hppa/Makefile @@ -15,6 +15,11 @@ test-xfail-check-wx-segment = * endif # $(subdir) == elf +ifeq ($(subdir),misc) +sysdep_routines += cacheflush +sysdep_headers += sys/cachectl.h +endif + ifeq ($(subdir),debug) test-xfail-tst-ssp-1 = $(have-ssp) endif # $(subdir) == debug diff --git a/sysdeps/unix/sysv/linux/hppa/Versions b/sysdeps/unix/sysv/linux/hppa/Versions index 78528e5fa2..1f83840d2f 100644 --- a/sysdeps/unix/sysv/linux/hppa/Versions +++ b/sysdeps/unix/sysv/linux/hppa/Versions @@ -23,4 +23,7 @@ libc { GLIBC_2.19 { fanotify_mark; } + GLIBC_2.41 { + cacheflush; + } } diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist index 8de7644a59..991475380c 100644 --- a/sysdeps/unix/sysv/linux/hppa/libc.abilist +++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist @@ -2821,6 +2821,7 @@ GLIBC_2.4 sys_errlist D 0x400 GLIBC_2.4 sys_nerr D 0x4 GLIBC_2.4 unlinkat F GLIBC_2.4 unshare F +GLIBC_2.41 cacheflush F GLIBC_2.41 sched_getattr F GLIBC_2.41 sched_setattr F GLIBC_2.5 __readlinkat_chk F diff --git a/sysdeps/unix/sysv/linux/hppa/sys/cachectl.h b/sysdeps/unix/sysv/linux/hppa/sys/cachectl.h new file mode 100644 index 0000000000..16e47d1329 --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/sys/cachectl.h @@ -0,0 +1,36 @@ +/* HPPA cache flushing interface. + Copyright (C) 2018-2024 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + . */ + +#ifndef _SYS_CACHECTL_H +#define _SYS_CACHECTL_H 1 + +#include + +/* Get the kernel definition for the op bits. */ +#include + +__BEGIN_DECLS + +#ifdef __USE_MISC +extern int cacheflush (void *__addr, const int __nbytes, + const int __op) __THROW; +#endif + +__END_DECLS + +#endif /* sys/cachectl.h */ diff --git a/sysdeps/unix/sysv/linux/hppa/syscalls.list b/sysdeps/unix/sysv/linux/hppa/syscalls.list index 12e4adeccc..b3020114d6 100644 --- a/sysdeps/unix/sysv/linux/hppa/syscalls.list +++ b/sysdeps/unix/sysv/linux/hppa/syscalls.list @@ -8,5 +8,6 @@ listen - listen i:ii __listen listen shutdown - shutdown i:ii __shutdown shutdown socket - socket i:iii __socket socket socketpair - socketpair i:iiif __socketpair socketpair +cacheflush - cacheflush i:pii _flush_cache cacheflush personality EXTRA personality Ei:i __personality personality