CVS commit: [netbsd-6] src/sys/arch/sparc64/sparc64

["Manuel Bouyer" <bouyer%netbsd.org@localhost>]

Module Name:    src
Committed By:   bouyer
Date:           Sun Nov 15 21:02:13 UTC 2015

Modified Files:
        src/sys/arch/sparc64/sparc64 [netbsd-6]: locore.s netbsd32_machdep.c
            vm_machdep.c

Log Message:
Pull up following revision(s) (requested by martin in ticket #1343):
        sys/arch/sparc64/sparc64/locore.s: revision 1.386
        sys/arch/sparc64/sparc64/vm_machdep.c: revision 1.101
        sys/arch/sparc64/sparc64/netbsd32_machdep.c: revision 1.105
        sys/arch/sparc64/sparc64/netbsd32_machdep.c: revision 1.106
Basically revert r1.246 of locore.s and r1.73 of vm_machdep.c:
        Remove special case handling for userland lwps from cpu_lwp_fork,
        instead do it in lwp_trampoline when we first return to userland.
which was a stupid idea - since we did now set all fork child's %tstate
(and thus %pstate when back in userland) to the current kernel's userland
default. This meant we lost the address mask bit for 32bit processes and
all memory model details for 64bit ones.
Move it back to cpu_lwp_fork and fix the condition to only do it once when
forking init.
Fix kmem_free() size mismatch
Convert siginfo to 32bit version before copying it out to 32bit userland.


To generate a diff of this commit:
cvs rdiff -u -r1.338.8.6 -r1.338.8.7 src/sys/arch/sparc64/sparc64/locore.s
cvs rdiff -u -r1.96.2.1 -r1.96.2.2 \
    src/sys/arch/sparc64/sparc64/netbsd32_machdep.c
cvs rdiff -u -r1.98 -r1.98.8.1 src/sys/arch/sparc64/sparc64/vm_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.