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authorPaul Mundt <lethal@linux-sh.org>2008-09-12 22:56:35 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-09-12 22:56:35 +0900
commit72461997c3c66c29775afa68ca31bea16bf17f39 (patch)
treeef400b44fe51a5a8fa10a8cbf3ee7f95a0176377 /arch
parentf9540ececaa2cf94b6760741c82f25097e662383 (diff)
sh: Check SR.DSP bit for DSP regset validity.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/kernel/ptrace_32.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 92fe2034f74..0f44f2b51a6 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -179,6 +179,14 @@ static int dspregs_set(struct task_struct *target,
return ret;
}
+
+static int dspregs_active(struct task_struct *target,
+ const struct user_regset *regset)
+{
+ struct pt_regs *regs = task_pt_regs(target);
+
+ return regs->sr & SR_DSP ? regset->n : 0;
+}
#endif
/*
@@ -213,6 +221,7 @@ static const struct user_regset sh_regsets[] = {
.align = sizeof(long),
.get = dspregs_get,
.set = dspregs_set,
+ .active = dspregs_active,
},
#endif
};