qemu-patch-raspberry4/linux-user/generic/target_prctl_unalign.h
Richard Henderson 6e8dcacd08 linux-user: Add code for PR_GET/SET_UNALIGN
This requires extra work for each target, but adds the
common syscall code, and the necessary flag in CPUState.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211227150127.2659293-4-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06 11:40:52 +01:00

28 lines
751 B
C

/*
* Generic prctl unalign functions for linux-user
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef GENERIC_TARGET_PRCTL_UNALIGN_H
#define GENERIC_TARGET_PRCTL_UNALIGN_H
static abi_long do_prctl_get_unalign(CPUArchState *env, target_long arg2)
{
CPUState *cs = env_cpu(env);
uint32_t res = PR_UNALIGN_NOPRINT;
if (cs->prctl_unalign_sigbus) {
res |= PR_UNALIGN_SIGBUS;
}
return put_user_u32(res, arg2);
}
#define do_prctl_get_unalign do_prctl_get_unalign
static abi_long do_prctl_set_unalign(CPUArchState *env, target_long arg2)
{
env_cpu(env)->prctl_unalign_sigbus = arg2 & PR_UNALIGN_SIGBUS;
return 0;
}
#define do_prctl_set_unalign do_prctl_set_unalign
#endif /* GENERIC_TARGET_PRCTL_UNALIGN_H */