[PATCH] Support AT_BSDFLAGS on FreeBSD.

[Simon Marchi]

On 2020-03-25 4:37 p.m., John Baldwin wrote:
> I can add something.  To date there aren't any user-visible changes.  There is
> one flag defined that indicates that the running FreeBSD kernel supports a new
> 'sigfastblock' system call that allows a thread to register a signal mask in user
> memory that is treated as the signal mask so that sigprocmask() can just modify
> that mask in userland without invoking actual system calls.  It's not documented
> though aside from the upstream commit message.
The commit changes fbsd_print_auxv_entry, so I presume that GDB will start printing
this auxv entry, if it is present, won't it?  Isn't that a user-visible change?

Even if there is no user-visible change, it's good to mention it, as well as why you'd
like to make the change.  The reviewer and future reader of this commit are not in your
head and don't have the same context to know why this was added.

Simon