Commit fb411b83 authored by Dave Martin's avatar Dave Martin Committed by Linus Torvalds
Browse files

c6x/ptrace: Remove useless PTRACE_SETREGSET implementation



gpr_set won't work correctly and can never have been tested, and the
correct behaviour is not clear due to the endianness-dependent task
layout.

So, just remove it.  The core code will now return -EOPNOTSUPPORT when
trying to set NT_PRSTATUS on this architecture until/unless a correct
implementation is supplied.
Signed-off-by: default avatarDave Martin <Dave.Martin@arm.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c470abd4
...@@ -69,46 +69,6 @@ static int gpr_get(struct task_struct *target, ...@@ -69,46 +69,6 @@ static int gpr_get(struct task_struct *target,
0, sizeof(*regs)); 0, sizeof(*regs));
} }
static int gpr_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;
struct pt_regs *regs = task_pt_regs(target);
/* Don't copyin TSR or CSR */
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&regs,
0, PT_TSR * sizeof(long));
if (ret)
return ret;
ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
PT_TSR * sizeof(long),
(PT_TSR + 1) * sizeof(long));
if (ret)
return ret;
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&regs,
(PT_TSR + 1) * sizeof(long),
PT_CSR * sizeof(long));
if (ret)
return ret;
ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
PT_CSR * sizeof(long),
(PT_CSR + 1) * sizeof(long));
if (ret)
return ret;
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&regs,
(PT_CSR + 1) * sizeof(long), -1);
return ret;
}
enum c6x_regset { enum c6x_regset {
REGSET_GPR, REGSET_GPR,
}; };
...@@ -120,7 +80,6 @@ static const struct user_regset c6x_regsets[] = { ...@@ -120,7 +80,6 @@ static const struct user_regset c6x_regsets[] = {
.size = sizeof(u32), .size = sizeof(u32),
.align = sizeof(u32), .align = sizeof(u32),
.get = gpr_get, .get = gpr_get,
.set = gpr_set
}, },
}; };
......
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