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[libFuzzer] modify the docs for startup/init 

llvm-svn: 268824
This commit is contained in:
Kostya Serebryany 2016-05-06 23:51:28 +00:00
parent 9b8eb155d8
commit ceca476b23
1 changed files with 7 additions and 3 deletions
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10
llvm/docs/LibFuzzer.rst
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@ -624,14 +624,18 @@ Startup initialization
----------------------
If the library being tested needs to be initialized, there are several options.
The simplest way is to have a statically initialized global object:
The simplest way is to have a statically initialized global object inside
`LLVMFuzzerTestOneInput` (or in global scope if that works for you):
.. code-block:: c++
static bool Initialized = DoInitialization();
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
static bool Initialized = DoInitialization();
...
Alternatively, you may define an optional init function and it will receive
the program arguments that you can read and modify:
the program arguments that you can read and modify. Do this **only** if you
realy need to access ``argv``/``argc``.
.. code-block:: c++