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Diffstat (limited to 'sys/pc98/pc98/machdep.c')
-rw-r--r--sys/pc98/pc98/machdep.c54
1 files changed, 0 insertions, 54 deletions
diff --git a/sys/pc98/pc98/machdep.c b/sys/pc98/pc98/machdep.c
index 86b6db25fd58..48eef4944f1c 100644
--- a/sys/pc98/pc98/machdep.c
+++ b/sys/pc98/pc98/machdep.c
@@ -2118,60 +2118,6 @@ ptrace_single_step(p)
return (0);
}
-int ptrace_read_u_check(p, addr, len)
- struct proc *p;
- vm_offset_t addr;
- size_t len;
-{
- vm_offset_t gap;
-
- if ((vm_offset_t) (addr + len) < addr)
- return EPERM;
- if ((vm_offset_t) (addr + len) <= sizeof(struct user))
- return 0;
-
- gap = (char *) p->p_frame - (char *) p->p_addr;
-
- if ((vm_offset_t) addr < gap)
- return EPERM;
- if ((vm_offset_t) (addr + len) <=
- (vm_offset_t) (gap + sizeof(struct trapframe)))
- return 0;
- return EPERM;
-}
-
-int ptrace_write_u(p, off, data)
- struct proc *p;
- vm_offset_t off;
- long data;
-{
- struct trapframe frame_copy;
- vm_offset_t min;
- struct trapframe *tp;
-
- /*
- * Privileged kernel state is scattered all over the user area.
- * Only allow write access to parts of regs and to fpregs.
- */
- min = (char *)p->p_frame - (char *)p->p_addr;
- if (off >= min && off <= min + sizeof(struct trapframe) - sizeof(int)) {
- tp = p->p_frame;
- frame_copy = *tp;
- *(int *)((char *)&frame_copy + (off - min)) = data;
- if (!EFL_SECURE(frame_copy.tf_eflags, tp->tf_eflags) ||
- !CS_SECURE(frame_copy.tf_cs))
- return (EINVAL);
- *(int*)((char *)p->p_addr + off) = data;
- return (0);
- }
- min = offsetof(struct user, u_pcb) + offsetof(struct pcb, pcb_save);
- if (off >= min && off <= min + sizeof(union savefpu) - sizeof(int)) {
- *(int*)((char *)p->p_addr + off) = data;
- return (0);
- }
- return (EFAULT);
-}
-
int
fill_regs(p, regs)
struct proc *p;