kernel-ark/arch/powerpc
Paul Mackerras e56a6e20f3 [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace
Some instruction tracing tools use the RI (recoverable interrupt) bit
in the MSR to indicate when it's safe to single-step.  Currently we
clear RI after restoring r13 when returning to userspace.  However,
if we single-step past the point where r13 is restored, we'll corrupt
r13 in the exception entry code and not restore it.  This moves the
clearing of RI to just before r13 is restored so this doesn't happen.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
..
boot
configs
kernel [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace 2007-02-07 14:03:23 +11:00
lib
math-emu
mm
oprofile
platforms [POWERPC] Maple: use mmio nvram 2007-02-07 14:03:23 +11:00
sysdev
xmon
.gitignore
Kconfig [POWERPC] Maple: use mmio nvram 2007-02-07 14:03:23 +11:00
Kconfig.debug
Makefile