[PATCH] arm64: Expose TASK_SIZE to userspace via auxv
richard.weinberger at gmail.com
Thu Aug 18 05:17:28 PDT 2016
On Wed, Aug 17, 2016 at 1:12 PM, Christopher Covington
<cov at codeaurora.org> wrote:
> On August 17, 2016 6:30:06 AM EDT, Catalin Marinas <catalin.marinas at arm.com> wrote:
>>On Tue, Aug 16, 2016 at 02:32:29PM -0400, Christopher Covington wrote:
>>> Some userspace applications need to know the maximum virtual address
>>> use (TASK_SIZE).
>>Just curious, what are the cases needing TASK_SIZE in user space?
I think this makes sense for all archs.
At lest UserModeLinux on x86 also needs to know bottom and top
addresses of the usable
Currently it figures by scanning and catching SIGSEGV.
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