• Jeff Dike's avatar
    [PATCH] uml: redo the signal delivery mechanism · 2da15330
    Jeff Dike authored
    This patch rips out the old signal delivery mechanism and replaces it with a
    sane one.
    
    Specifically, UML used to capture a host signal frame and use it as a template
    for its own signal frames.  This was a worthy idea, because it promised a
    degree of architecture-independence for this part of UML, but impractical. 
    There are some environments, notably 32 bit emulation on a 64 bit box, where
    you can't use the host signal frame as a template for your own.  Plus, this
    code is as complicated, even to someone who understands what it's doing, as
    the standard fill-in-a-structure-and-write-it-to-the-stack.  For everyone
    else, it is incomprehensible.
    
    So, this reimplements signal handling in the way that everyone else does.  It
    gives up on architecture independence, and moves this code into the
    x86-specific stuff.
    Signed-off-by: default avatarJeff Dike <jdike@addtoit.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    2da15330
Makefile 897 Bytes