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authorAlexey Dobriyan <adobriyan@gmail.com>2007-07-17 04:03:43 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:03 -0700
commit7664732315c97f48dba9d1e7339ad16fc5a320ac (patch)
tree1eb9639b0fbe3f24341cecf1dafcae192cb7bde7 /kernel
parentbcdcd8e725b923ad7c0de809680d5d5658a7bf8c (diff)
PTRACE_PEEKDATA consolidation
Identical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata() function. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/ptrace.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index b1d11f1c7cf7..1653d35419a1 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -490,3 +490,14 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
return ret;
}
#endif /* __ARCH_SYS_PTRACE */
+
+int generic_ptrace_peekdata(struct task_struct *tsk, long addr, long data)
+{
+ unsigned long tmp;
+ int copied;
+
+ copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
+ if (copied != sizeof(tmp))
+ return -EIO;
+ return put_user(tmp, (unsigned long __user *)data);
+}