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From: | Warner Losh |
Subject: | Re: [PATCH 13/24] bsd-user/arm/target_arch_thread.h: Routines to create and switch to a thread |
Date: | Thu, 28 Oct 2021 13:45:29 -0600 |
On 10/19/21 9:44 AM, Warner Losh wrote:
> + regs->spsr = ARM_CPU_MODE_USR;
> + if (entry & 0x1) {
> + regs->spsr |= CPSR_T;
> + }
(1) Why are you setting SPSR not CPSR?
(2) Changes to CPSR cannot be made manually; you need cpsr_write.
r~
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