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powerpc: Update for VSX core file and ptrace

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This correctly hooks the VSX dump into Roland McGrath core file
infrastructure.  It adds the VSX dump information as an additional elf
note in the core file (after talking more to the tool chain/gdb guys).
This also ensures the formats are consistent between signals, ptrace
and core files.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Neuling
2008-07-01 14:01:39 +10:00
committed by Paul Mackerras
parent 436db693c4
commit f3e909c275
4 changed files with 17 additions and 28 deletions
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21
arch/powerpc/kernel/ptrace.c
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@@ -368,13 +368,15 @@ static int vsr_get(struct task_struct *target, const struct user_regset *regset,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
{
int ret;
double buf[32];
int ret, i;
flush_vsx_to_thread(target);
for (i = 0; i < 32 ; i++)
buf[i] = current->thread.fpr[i][TS_VSRLOWOFFSET];
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
target->thread.fpr, 0,
32 * sizeof(vector128));
buf, 0, 32 * sizeof(double));
return ret;
}
@@ -383,13 +385,16 @@ static int vsr_set(struct task_struct *target, const struct user_regset *regset,
unsigned int pos, unsigned int count,
const void *kbuf, const void __user *ubuf)
{
int ret;
double buf[32];
int ret,i;
flush_vsx_to_thread(target);
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
target->thread.fpr, 0,
32 * sizeof(vector128));
buf, 0, 32 * sizeof(double));
for (i = 0; i < 32 ; i++)
current->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
return ret;
}
@@ -499,8 +504,8 @@ static const struct user_regset native_regsets[] = {
#endif
#ifdef CONFIG_VSX
[REGSET_VSX] = {
.n = 32,
.size = sizeof(vector128), .align = sizeof(vector128),
.core_note_type = NT_PPC_VSX, .n = 32,
.size = sizeof(double), .align = sizeof(double),
.active = vsr_active, .get = vsr_get, .set = vsr_set
},
#endif