mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
7a3e2e877a
Hurd is expected to use the same thread ABI as Linux. Reviewed-by: Michael Jeanson <mjeanson@efficios.com>
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* __thread_pointer definition. hppa version.
|
|
Copyright (C) 2021-2025 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _SYS_THREAD_POINTER_H
|
|
#define _SYS_THREAD_POINTER_H
|
|
|
|
static inline void *
|
|
__thread_pointer (void)
|
|
{
|
|
void *__thread_register;
|
|
__asm__ ("mfctl %%cr27, %0" : "=r" (__thread_register));
|
|
return __thread_register;
|
|
}
|
|
|
|
/* We write to cr27, clobber r26 as the input argument, and clobber
|
|
r31 as the link register. */
|
|
static inline void
|
|
__set_thread_pointer(void *__thread_pointer)
|
|
{
|
|
asm ( "ble 0xe0(%%sr2, %%r0)\n\t"
|
|
"copy %0, %%r26"
|
|
: : "r" (__thread_pointer) : "r26", "r31" );
|
|
}
|
|
|
|
#endif /* _SYS_THREAD_POINTER_H */
|