Date: Sun, 10 Jan 2016 14:08:41 +0100 From: Oliver Pinter <oliver.pinter@hardenedbsd.org> To: John Baldwin <jhb@freebsd.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r290728 - in head/sys: amd64/include i386/include kern vm Message-ID: <CAPQ4ffsm=Pq-R=QKLtjJ0obRAqjesaCtezsPc9y%2Bh%2BaGasMRFw@mail.gmail.com> In-Reply-To: <201511122200.tACM0xtq091540@repo.freebsd.org> References: <201511122200.tACM0xtq091540@repo.freebsd.org>
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On 11/12/15, John Baldwin <jhb@freebsd.org> wrote: > Author: jhb > Date: Thu Nov 12 22:00:59 2015 > New Revision: 290728 > URL: https://svnweb.freebsd.org/changeset/base/290728 > > Log: > Export various helper variables describing the layout and size of > certain kernel structures for use by debuggers. This mostly aids > in examining cores from a kernel without debug symbols as a debugger > can infer these values if debug symbols are available. > > One set of variables describes the layout of 'struct linker_file' to > walk the list of loaded kernel modules. > > A second set of variables describes the layout of 'struct proc' and > 'struct thread' to walk the list of processes in the kernel and the > threads in each process. > > The 'pcb_size' variable is used to index into the stoppcbs[] array. > > The 'vm_maxuser_address' is used to distinguish kernel virtual addresses > from user addresses. This doesn't have to be perfect, and > 'vm_maxuser_address' is a cheap and simple way to differentiate kernel > pointers from simple values like TIDs and PIDs. > > While here, annotate the fields in struct pcb used by kgdb on amd64 > and i386 to note that their ABI should be preserved. Annotations for > other platforms will be added in the future. > > Reviewed by: kib > MFC after: 2 weeks Hi John! Are you still plan to MFC back to 10-STABLE this commit? > Differential Revision: https://reviews.freebsd.org/D3773 > > Modified: > head/sys/amd64/include/pcb.h > head/sys/i386/include/pcb.h > head/sys/kern/kern_linker.c > head/sys/kern/kern_mib.c > head/sys/kern/kern_proc.c > head/sys/vm/vm_kern.c > [...] > _______________________________________________ > svn-src-head@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/svn-src-head > To unsubscribe, send any mail to "svn-src-head-unsubscribe@freebsd.org" >
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