1/*
2 * Copyright 2011, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "helper.h"
18#include "raw_ostream.h"
19
20#include <stdlib.h>
21#include <ctype.h>
22
23using namespace llvm;
24
25void dump_hex(unsigned char const *data,
26              size_t size, size_t begin, size_t end) {
27  if (end <= begin) {
28    // Nothing to print now.  Return directly.
29    return;
30  }
31
32  size_t lower = begin & (~0xfUL);
33  size_t upper = (end & (~0xfUL)) ? end : ((end + 16UL) & (~0xfUL));
34
35  for (size_t i = lower; i < upper; i += 16) {
36    out() << format("%08x", i) << ':';
37
38    if (i < begin) {
39      out().changeColor(raw_ostream::MAGENTA);
40    }
41
42    for (size_t j = i, k = i + 16; j < k; ++j) {
43      if (j == begin) {
44        out().resetColor();
45      }
46
47      if (j == end) {
48        out().changeColor(raw_ostream::MAGENTA);
49      }
50
51      if (j < size) {
52        out() << ' ' << format("%02x", (unsigned)data[j]);
53      }
54    }
55
56    out().resetColor();
57    out() << "  ";
58
59    for (size_t j = i, k = i + 16; j < k; ++j) {
60      if (data[j] > 0x20 && data[j] < 0x7f) {
61        out() << (char)data[j];
62      } else {
63        out() << '.';
64      }
65    }
66
67    out() << '\n';
68  }
69}
70