aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68knommu/kernel/ptrace.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68knommu/kernel/ptrace.c')
-rw-r--r--arch/m68knommu/kernel/ptrace.c39
1 files changed, 1 insertions, 38 deletions
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
index 621d7b91ccfe..262ab8c72e5f 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68knommu/kernel/ptrace.c
@@ -101,43 +101,10 @@ void ptrace_disable(struct task_struct *child)
101 put_reg(child, PT_SR, tmp); 101 put_reg(child, PT_SR, tmp);
102} 102}
103 103
104asmlinkage long sys_ptrace(long request, long pid, long addr, long data) 104long arch_ptrace(truct task_struct *child, long request, long addr, long data)
105{ 105{
106 struct task_struct *child;
107 int ret; 106 int ret;
108 107
109 lock_kernel();
110 ret = -EPERM;
111 if (request == PTRACE_TRACEME) {
112 /* are we already being traced? */
113 if (current->ptrace & PT_PTRACED)
114 goto out;
115 /* set the ptrace bit in the process flags. */
116 current->ptrace |= PT_PTRACED;
117 ret = 0;
118 goto out;
119 }
120 ret = -ESRCH;
121 read_lock(&tasklist_lock);
122 child = find_task_by_pid(pid);
123 if (child)
124 get_task_struct(child);
125 read_unlock(&tasklist_lock);
126 if (!child)
127 goto out;
128
129 ret = -EPERM;
130 if (pid == 1) /* you may not mess with init */
131 goto out_tsk;
132
133 if (request == PTRACE_ATTACH) {
134 ret = ptrace_attach(child);
135 goto out_tsk;
136 }
137 ret = ptrace_check_attach(child, request == PTRACE_KILL);
138 if (ret < 0)
139 goto out_tsk;
140
141 switch (request) { 108 switch (request) {
142 /* when I and D space are separate, these will need to be fixed. */ 109 /* when I and D space are separate, these will need to be fixed. */
143 case PTRACE_PEEKTEXT: /* read word at location addr. */ 110 case PTRACE_PEEKTEXT: /* read word at location addr. */
@@ -357,10 +324,6 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
357 ret = -EIO; 324 ret = -EIO;
358 break; 325 break;
359 } 326 }
360out_tsk:
361 put_task_struct(child);
362out:
363 unlock_kernel();
364 return ret; 327 return ret;
365} 328}
366 329