Re: [PATCH] siginfo, kernel 2.3.35

[lars brinkhoff]

Keith Adams wrote:
> The siginfo patch below applies cleanly to 2.3.35. It causes SIGSEGV to
> properly report siginfo fields on i386. This is necessary to an application
> I'm working on, which does user-level paging by trapping SIGSEGV. This is
> a fairly standard UNIX technique, that is impossible on Linux without this
> patch.

Is this for the Brown Simulator?  It was an inspiration for my a386
project[*], which
is like brownsim, but closer to an i386 and with user-mode binary
compatability with
the native OS (i.e. it can catch ordinary user-mode system calls).

User-level paging is possible with the information provided in the sigcontext
passed
on the signal stack frame.  It's not standardized as siginfo, but it's usable.

[*] http://www.nocrew.org/software/a386/