aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/kernel/ptrace.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/ptrace.c')
-rw-r--r--arch/powerpc/kernel/ptrace.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 90653699829..55613e33e26 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -229,12 +229,16 @@ static int gpr_get(struct task_struct *target, const struct user_regset *regset,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
{
- int ret;
+ int i, ret;
if (target->thread.regs == NULL)
return -EIO;
- CHECK_FULL_REGS(target->thread.regs);
+ if (!FULL_REGS(target->thread.regs)) {
+ /* We have a partial register set. Fill 14-31 with bogus values */
+ for (i = 14; i < 32; i++)
+ target->thread.regs->gpr[i] = NV_REG_POISON;
+ }
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
target->thread.regs,
@@ -459,7 +463,7 @@ static int vr_set(struct task_struct *target, const struct user_regset *regset,
#ifdef CONFIG_VSX
/*
* Currently to set and and get all the vsx state, you need to call
- * the fp and VMX calls aswell. This only get/sets the lower 32
+ * the fp and VMX calls as well. This only get/sets the lower 32
* 128bit VSX registers.
*/
@@ -641,11 +645,16 @@ static int gpr32_get(struct task_struct *target,
compat_ulong_t *k = kbuf;
compat_ulong_t __user *u = ubuf;
compat_ulong_t reg;
+ int i;
if (target->thread.regs == NULL)
return -EIO;
- CHECK_FULL_REGS(target->thread.regs);
+ if (!FULL_REGS(target->thread.regs)) {
+ /* We have a partial register set. Fill 14-31 with bogus values */
+ for (i = 14; i < 32; i++)
+ target->thread.regs->gpr[i] = NV_REG_POISON;
+ }
pos /= sizeof(reg);
count /= sizeof(reg);