On Mon, Dec 3, 2018 at 3:46 PM Luis Chamberlain wrote:
>
> On Mon, Dec 03, 2018 at 03:34:57PM -0800, Brendan Higgins wrote:
> > On Thu, Nov 29, 2018 at 7:34 PM Luis Chamberlain wrote:
> > >
> > > On Wed, Nov 28, 2018 at 11:36:25AM -0800, Brendan Higgins wrote:
> > > > diff --git
On Mon, Dec 03, 2018 at 03:34:57PM -0800, Brendan Higgins wrote:
> On Thu, Nov 29, 2018 at 7:34 PM Luis Chamberlain wrote:
> >
> > On Wed, Nov 28, 2018 at 11:36:25AM -0800, Brendan Higgins wrote:
> > > diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
> > > index
On Thu, Nov 29, 2018 at 7:41 PM Luis Chamberlain wrote:
>
> On Wed, Nov 28, 2018 at 11:36:25AM -0800, Brendan Higgins wrote:
> > +static void segv_run_catcher(jmp_buf *catcher, void *fault_addr)
> > +{
> > + current->thread.fault_addr = fault_addr;
> > + UML_LONGJMP(catcher, 1);
> > +}
>
On Thu, Nov 29, 2018 at 7:34 PM Luis Chamberlain wrote:
>
> On Wed, Nov 28, 2018 at 11:36:25AM -0800, Brendan Higgins wrote:
> > diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
> > index cced829460427..bf90e678b3d71 100644
> > --- a/arch/um/kernel/trap.c
> > +++ b/arch/um/kernel/trap.c
On Wed, Nov 28, 2018 at 11:36:25AM -0800, Brendan Higgins wrote:
> +static void segv_run_catcher(jmp_buf *catcher, void *fault_addr)
> +{
> + current->thread.fault_addr = fault_addr;
> + UML_LONGJMP(catcher, 1);
> +}
Some documentation about what this does exactly would be appreciated.
On Wed, Nov 28, 2018 at 11:36:25AM -0800, Brendan Higgins wrote:
> diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
> index cced829460427..bf90e678b3d71 100644
> --- a/arch/um/kernel/trap.c
> +++ b/arch/um/kernel/trap.c
> @@ -201,6 +201,12 @@ void segv_handler(int sig, struct siginfo
Add context to current thread that allows a test to specify that it
wants to skip the normal checks to run an installed fault catcher.
Signed-off-by: Brendan Higgins
---
arch/um/include/asm/processor-generic.h | 4 +++-
arch/um/kernel/trap.c | 15 +++
2 files
