When linux-user code is calling cpsr_write(), use a restrictive
mask to ensure we are limiting the set of CPSR bits we update.
In particular, don't allow the mode bits to be changed.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id:
1455556977-3644-5-git-send-email-peter.maydell@linaro.org
#elif defined(TARGET_ARM)
{
int i;
- cpsr_write(env, regs->uregs[16], 0xffffffff, CPSRWriteByInstr);
+ cpsr_write(env, regs->uregs[16], CPSR_USER | CPSR_EXEC,
+ CPSRWriteByInstr);
for(i = 0; i < 16; i++) {
env->regs[i] = regs->uregs[i];
}
env->regs[13] = frame_addr;
env->regs[14] = retcode;
env->regs[15] = handler & (thumb ? ~1 : ~3);
- cpsr_write(env, cpsr, 0xffffffff, CPSRWriteByInstr);
+ cpsr_write(env, cpsr, CPSR_IT | CPSR_T, CPSRWriteByInstr);
}
static abi_ulong *setup_sigframe_v2_vfp(abi_ulong *regspace, CPUARMState *env)