Hi Mark,
On 19/07/17 17:01, Mark Rutland wrote:
+#define HWCAP_APIA (1 << 16)
Can you rename it to HWCAP_ARM64_APIA or HWCAP_ARM_APIA? When we
use it in user space, at least in GDB, we usually do this,
#ifndef HWCAP_APIA
#define HWCAP_APIA (1 << 16)
#endif
However, the code use th
On 19/07/17 17:01, Mark Rutland wrote:
If authentication fails, bits are set in the pointer such that it is guaranteed
to cause a fault if used.
How does user space know the fault is caused by authentication fail?
When GDB is debugging a program, and it failed in pointer
authentication, I assum
On 19/07/17 17:01, Mark Rutland wrote:
* Should the kernel remove PACs when unwinding user stacks?
This is simple to do, but it's arguably placing a policy in the kernel as to
what we expect user stacks to look like. Regardless, userspace will have to
perform this when unwinding with DWARF
On Wed, Oct 12, 2016 at 6:58 AM, Pratyush Anand wrote:
> Since, arm64 can support all offset within a double word limit. Therefore,
> now support other lengths within that range as well.
How does ptracer (like GDB) detect kernel has already supported all byte
address select values? I suppose ptr
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