1 files changed, 27 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/lib/__ptrace.c b/mdk-stage1/dietlibc/lib/__ptrace.c
new file mode 100644
index 000000000..bd14a0351
--- /dev/null
+++ b/mdk-stage1/dietlibc/lib/__ptrace.c
@@ -0,0 +1,27 @@
+/* we need this because we need to use the glibc prototype which uses
+ * varargs :-( */
+#define ptrace fnord
+#include <sys/ptrace.h>
+#undef ptrace
+#include <sys/types.h>
+#include <unistd.h>
+
+extern int __diet_ptrace(int request, pid_t pid, void *addr, void *data);
+int ptrace(int request, pid_t pid, void *addr, void *data);
+
+int ptrace(int request, pid_t pid, void *addr, void *data) {
+  switch (request) {
+    case PTRACE_TRACEME: case PTRACE_KILL: case PTRACE_ATTACH:
+    case PTRACE_DETACH:
+      return (__diet_ptrace (request, pid, NULL, NULL));
+    case PTRACE_PEEKDATA: case PTRACE_PEEKUSER: case PTRACE_PEEKTEXT:
+      {
+	long result;
+	if (__diet_ptrace (request, pid, addr, &result) == -1)
+		return (-1);
+	return (result);
+      }
+    default:
+      return (__diet_ptrace (request, pid, addr, data));
+  }
+}