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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-06-04 07:15:47 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-06-14 14:29:57 +0200 |
| commit | abd0650541604d6c028bcbf5002e4a68aaf56e90 (patch) | |
| tree | a915cecfa86f34ea8a2661d311548da009379c21 /arch/powerpc/kernel/process.c | |
| parent | [POWERPC] Allow ptrace write to pt_regs trap and orig_r3 (diff) | |
| download | linux-abd0650541604d6c028bcbf5002e4a68aaf56e90.tar.xz linux-abd0650541604d6c028bcbf5002e4a68aaf56e90.zip | |
[POWERPC] ptrace shouldn't touch FP exec mode
One of the gratuitous difference between 32 and 64-bit ptrace is
whether you can whack the MSR:FE0 and FE1 bits from ptrace. This
patch forbids it unconditionally. In addition, the 64-bit kernels
used to return the exception mode in the MSR on reads, but 32-bit
kernels didn't. This patch makes it return those bits on both.
Finally, since ptrace-ppc32.h and ptrace-ppc64.h are mostly empty now, and
since the previous patch made ptrace32.c no longer need the MSR_DEBUGCHANGE
definition, we just remove those 2 files and move back the remaining bits
to ptrace.c (they were short lived heh ?).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
0 files changed, 0 insertions, 0 deletions