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/* __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 */
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