static int setup_sigframe(struct rt_sigframe __user *sf,
struct pt_regs *regs, sigset_t *set)
{
int i, err = 0;
struct aux_context __user *aux =
(struct aux_context __user *)sf->uc.uc_mcontext.__reserved;
/* set up the stack frame for unwinding */
__put_user_error(regs->regs[29], &sf->fp, err);
__put_user_error(regs->regs[30], &sf->lr, err);
for (i = 0; i < 31; i++)
__put_user_error(regs->regs[i], &sf->uc.uc_mcontext.regs[i],
err);
__put_user_error(regs->sp, &sf->uc.uc_mcontext.sp, err);
__put_user_error(regs->pc, &sf->uc.uc_mcontext.pc, err);
__put_user_error(regs->pstate, &sf->uc.uc_mcontext.pstate, err);
__put_user_error(current->thread.fault_address, &sf->uc.uc_mcontext.fault_address, err);
err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set));
if (err == 0)
err |= preserve_fpsimd_context(&aux->fpsimd);
/* set the "end" magic */
__put_user_error(0, &aux->end.magic, err);
__put_user_error(0, &aux->end.size, err);
return err;
}
static int setup_sigframe(struct rt_sigframe __user *sf,
struct pt_regs *regs, sigset_t *set)
{
int i, err = 0;
void *aux = sf->uc.uc_mcontext.__reserved;
struct _aarch64_ctx *end;
/* set up the stack frame for unwinding */
__put_user_error(regs->regs[29], &sf->fp, err);
__put_user_error(regs->regs[30], &sf->lr, err);
for (i = 0; i < 31; i++)
__put_user_error(regs->regs[i], &sf->uc.uc_mcontext.regs[i],
err);
__put_user_error(regs->sp, &sf->uc.uc_mcontext.sp, err);
__put_user_error(regs->pc, &sf->uc.uc_mcontext.pc, err);
__put_user_error(regs->pstate, &sf->uc.uc_mcontext.pstate, err);
__put_user_error(current->thread.fault_address, &sf->uc.uc_mcontext.fault_address, err);
err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set));
if (err == 0) {
struct fpsimd_context *fpsimd_ctx =
container_of(aux, struct fpsimd_context, head);
err |= preserve_fpsimd_context(fpsimd_ctx);
aux += sizeof(*fpsimd_ctx);
}
/* fault information, if valid */
if (current->thread.fault_code) {
struct esr_context *esr_ctx =
container_of(aux, struct esr_context, head);
__put_user_error(ESR_MAGIC, &esr_ctx->head.magic, err);
__put_user_error(sizeof(*esr_ctx), &esr_ctx->head.size, err);
__put_user_error(current->thread.fault_code, &esr_ctx->esr, err);
aux += sizeof(*esr_ctx);
}
/* set the "end" magic */
end = aux;
__put_user_error(0, &end->magic, err);
__put_user_error(0, &end->size, err);
return err;
}
