It is often useful to capture the output of the program to file. For example,
in the C shell, you can run:
- .. code-block:: bash
+ .. code-block:: console
- bugpoint ... |& tee bugpoint.log
+ $ bugpoint ... |& tee bugpoint.log
to get a copy of ``bugpoint``'s output in the file ``bugpoint.log``, as well
as on your terminal.
#. Create a directory for containing the build. It is not supported to build
LLVM on the source directory. cd to this directory:
- .. code-block:: bash
+ .. code-block:: console
$ mkdir mybuilddir
$ cd mybuilddir
#. Execute this command on the shell replacing `path/to/llvm/source/root` with
the path to the root of your LLVM source tree:
- .. code-block:: bash
+ .. code-block:: console
$ cmake path/to/llvm/source/root
explicitly specify the generator with the command line option ``-G "Name of the
generator"``. For knowing the available generators on your platform, execute
-.. code-block:: bash
+.. code-block:: console
$ cmake --help
This will list the generator's names at the end of the help text. Generator's
names are case-sensitive. Example:
-.. code-block:: bash
+.. code-block:: console
$ cmake -G "Visual Studio 9 2008" path/to/llvm/source/root
variables, with possible values ON/OFF. Options and variables are defined on the
CMake command line like this:
-.. code-block:: bash
+.. code-block:: console
$ cmake -DVARIABLE=value path/to/llvm/source
You can set a variable after the initial CMake invocation for changing its
value. You can also undefine a variable:
-.. code-block:: bash
+.. code-block:: console
$ cmake -UVARIABLE path/to/llvm/source
Variables are listed here appending its type after a colon. It is correct to
write the variable and the type on the CMake command line:
-.. code-block:: bash
+.. code-block:: console
$ cmake -DVARIABLE:TYPE=value path/to/llvm/source
using makefiles, execute this command while on the top level of your build
directory:
-.. code-block:: bash
+.. code-block:: console
$ make check
It is possible to develop LLVM passes against installed LLVM. An example of
project layout provided below:
-.. code-block:: bash
+.. code-block:: none
<project dir>/
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