aboutsummaryrefslogtreecommitdiff
path: root/CHANGELOG.md
blob: 77be1fde4256b37548b0883693ef5e462fb99d2e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
## Unreleased

Released YYYY-MM-DD.

### Added

* TODO (or remove section if none)

### Changed

* TODO (or remove section if none)

### Deprecated

* TODO (or remove section if none)

### Removed

* TODO (or remove section if none)

### Fixed

* TODO (or remove section if none)

### Security

* TODO (or remove section if none)

--------------------------------------------------------------------------------

## 0.4.2

Released 2020-05-26.

### Changed

* Improved performance of checking for whether `cargo fuzz` is requesting the
  `std::fmt::Debug` output of an input or not. This is always false during
  regular fuzzing, so making this check faster should give slightly better
  fuzzing throughput.

--------------------------------------------------------------------------------

## 0.4.1

Released 2020-05-13.

### Added

* Added support for defining custom mutators. See [the documentation for the
  `fuzz_mutator!`
  macro](https://docs.rs/libfuzzer-sys/0.4.1/libfuzzer_sys/macro.fuzz_mutator.html)
  for details.

### Changed

* Upgraded libfuzzer to llvm/llvm-project's 70cbc6d.

--------------------------------------------------------------------------------

## 0.4.0

Released 2021-02-24.

### Changed

* The public `arbitrary` dependency was updated to version 1.0.

--------------------------------------------------------------------------------

## 0.3.5

Released 2020-11-18.

### Changed

* [Upgrade libfuzzer to 7bf89c2](https://github.com/rust-fuzz/libfuzzer/pull/68)

--------------------------------------------------------------------------------

## 0.3.4

Released 2020-08-22.

### Changed

* Updated `arbitrary` dependency to 0.4.6

--------------------------------------------------------------------------------

## 0.3.3

Released 2020-07-27.

### Changed

* Upgraded libfuzzer to commit
  [4a4cafa](https://github.com/llvm/llvm-project/commit/4a4cafabc9067fced5890a245b03ef5897ad988b).

  Notably, this pulls in [the new Entropic engine for
  libFuzzer](https://mboehme.github.io/paper/FSE20.Entropy.pdf), which should
  boost fuzzing efficiency when enabled. You can enable Entropic by passing
  `-entropic=1` to your built fuzz targets (although, note that it is still
  labeled "experimental").

--------------------------------------------------------------------------------

## 0.3.2

Released 2020-03-18.

### Changed

* Upgraded the `arbitrary` dependency re-export to version 0.4.1.

--------------------------------------------------------------------------------

## 0.3.1

Released 2020-02-27.

### Changed

* Fixed a fuzzing performance issue where libfuzzer could unnecessarily spend
  time exploring all the ways that an `Arbitrary` implementation could fail to
  construct an instance of itself because the fuzzer provided too few bytes. See
  https://github.com/rust-fuzz/libfuzzer/issues/59 for details.

--------------------------------------------------------------------------------

## 0.3.0

Released 2019-01-22.

### Changed

* Now works with and re-exports `arbitrary` versions 0.4.x.

--------------------------------------------------------------------------------

## 0.2.1

Released 2019-01-16.

### Added

* Added support for the `CUSTOM_LIBFUZZER_STD_CXX=<lib>` environment variable
  during builds that already use a custom libFuzzer checkout with
  `CUSTOM_LIBFUZZER_PATH`. This allows you to explicitly choose to link LLVM or
  GNU C++ standard libraries.

--------------------------------------------------------------------------------

## 0.2.0

Released 2020-01-14.

### Changed

* Using `arbitrary` 0.3.x now. It is re-exported as `libfuzzer_sys::arbitrary`.

### Added

* You can enable support for `#[derive(Arbitrary)]` with the
  `"arbitrary-derive"` cargo feature. This is a synonym for the `arbitrary`
  crate's `"derive"` cargo feature.

--------------------------------------------------------------------------------

## 0.1.0