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Re: [PATCH] target/ppc: fix single-step exception regression


From: Richard Henderson
Subject: Re: [PATCH] target/ppc: fix single-step exception regression
Date: Tue, 1 Jun 2021 13:27:20 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1

On 6/1/21 11:02 AM, Luis Pires wrote:
+            if (is_jmp == DISAS_EXIT || is_jmp == DISAS_CHAIN) {
+                /* We have not updated nip yet, so do it now */
+                gen_update_nip(ctx, nip);
+            }

This is incorrect. Both EXIT and CHAIN *have* updated nip, but to something that isn't the next instruction. E.g. return from interrupt.


r~



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