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From: | Richard Henderson |
Subject: | Re: [Qemu-arm] [Qemu-devel] [PATCH v1 1/2] target/arm: kvm64 make guest debug AA32 break point aware |
Date: | Fri, 14 Dec 2018 07:53:06 -0600 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1 |
On 12/14/18 2:37 AM, Omair Javaid wrote: > Are you expecting GDB to switch targets (from AArch64 to AArch32 or > vice versa) when there is mode switch for example a AArch64 binary > calling a AArch32 library function. Mode changes happen only at privilege level changes. E.g. AArch32 binary makes a system call to an AArch64 kernel, or an AArch32 guest kernel takes an i/o emulation trap to an AArch64 hypervisor. But for this sort of system debugging, it would be nice to be able to single-step through the whole operation. r~
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