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linux-user/s390x: Tidy save_sigregs 

The "save" routines copied from the kernel, which are currently
commented out, are unnecessary in qemu.  We can copy from env
where the kernel needs special instructions.  Fix comment style.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210428193408.233706-9-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Richard Henderson 2021-04-28 12:34:01 -07:00 committed by Laurent Vivier
parent bb17fc5b47
commit 82839490e4
1 changed files with 6 additions and 4 deletions
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10
linux-user/s390x/signal.c
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@ -104,23 +104,25 @@ get_sigframe(struct target_sigaction *ka, CPUS390XState *env, size_t frame_size)
static void save_sigregs(CPUS390XState *env, target_sigregs *sregs)
{
int i;
//save_access_regs(current->thread.acrs); FIXME
/* Copy a 'clean' PSW mask to the user to avoid leaking
information about whether PER is currently on. */
/*
* Copy a 'clean' PSW mask to the user to avoid leaking
* information about whether PER is currently on.
*/
__put_user(env->psw.mask, &sregs->regs.psw.mask);
__put_user(env->psw.addr, &sregs->regs.psw.addr);
for (i = 0; i < 16; i++) {
__put_user(env->regs[i], &sregs->regs.gprs[i]);
}
for (i = 0; i < 16; i++) {
__put_user(env->aregs[i], &sregs->regs.acrs[i]);
}
/*
* We have to store the fp registers to current->thread.fp_regs
* to merge them with the emulated registers.
*/
//save_fp_regs(&current->thread.fp_regs); FIXME
for (i = 0; i < 16; i++) {
__put_user(*get_freg(env, i), &sregs->fpregs.fprs[i]);
}