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bsd-user/arm/target_arch_cpu.c: Target specific TLS routines

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Target specific TLS routines to get and set the TLS values.

Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2021-09-23 08:32:06 -06:00
parent 559d09a6cd
commit 8c98705bb9
2 changed files with 67 additions and 0 deletions
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28
bsd-user/arm/target_arch.h Normal file
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/*
* ARM 32-bit specific prototypes for bsd-user
*
* Copyright (c) 2013 Stacey D. Son
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TARGET_ARCH_H_
#define _TARGET_ARCH_H_
#include "qemu.h"
void target_cpu_set_tls(CPUARMState *env, target_ulong newtls);
target_ulong target_cpu_get_tls(CPUARMState *env);
#endif /* !_TARGET_ARCH_H_ */

39
bsd-user/arm/target_arch_cpu.c Normal file
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/*
* arm cpu related code
*
* Copyright (c) 2013 Stacey D. Son
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "target_arch.h"
void target_cpu_set_tls(CPUARMState *env, target_ulong newtls)
{
if (access_secure_reg(env)) {
env->cp15.tpidrurw_s = newtls;
env->cp15.tpidruro_s = newtls;
return;
}
env->cp15.tpidr_el[0] = newtls;
env->cp15.tpidrro_el[0] = newtls;
}
target_ulong target_cpu_get_tls(CPUARMState *env)
{
if (access_secure_reg(env)) {
return env->cp15.tpidruro_s;
}
return env->cp15.tpidrro_el[0];
}