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| author | Vincent Guittot <vincent.guittot@linaro.org> | 2015-10-22 14:16:28 +0200 |
|---|---|---|
| committer | Vincent Guittot <vincent.guittot@linaro.org> | 2015-10-23 08:56:03 +0200 |
| commit | 6133cd743673af1f0f056d05488b2cf26dbb4eb8 (patch) | |
| tree | 74c9b62f973dce7125968b4da47dc0ff86cdb23d /doc | |
| parent | acbd05df48f43f3e882d0bcf6be5998954da570f (diff) | |
rt-app: Add static cross compilation description
Add a How to cross-compile rt-app with static linkage
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/tutorial.txt | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/doc/tutorial.txt b/doc/tutorial.txt index 9c47178..c1be953 100644 --- a/doc/tutorial.txt +++ b/doc/tutorial.txt @@ -20,10 +20,33 @@ events e.g. a sequence of multiple sleep and run events. - Some values can be omitted and workgen will add them when it parses the file before starting the use case. +**** Compiling and cross-compiling rt-app **** +rt-app uses libjson-c to parse the .json file +You can either install the libjson-c2 and libjson-c-dev deb packages or compile +from source code available here: https://github.com/json-c/json-c + +The following sequence can be used to cross compile rt-app with static linkage +for aarch64: + +For libjson-c: + +export ac_cv_func_malloc_0_nonnull=yes +export ac_cv_func_realloc_0_nonnull=yes +./autogen.sh +./configure --host=aarch64-linux-gnu --disable-shared --enable-static +make + +For rt-app: + +export ac_cv_lib_json_c_json_object_from_file=yes +./autogen.sh +./configure --host=aarch64-linux-gnu LDFLAGS=" --static -L<path to parent of json repo>/json-c/. libs/" CFLAGS="-I<path to parent of json repo>" --with-deadline +make + **** json file skeleton **** The json file that describes a workload is made on 3 main objects: tasks, -resources and global objects. Only task object is mandatory; default value will +resources and global objects. Only tasks object is mandatory; default value will be used if global object is not defined and resources object is kept for backward compatibility with old version of rt-app but it doesn't give any benefit to declare it as the resources are now dynamically created by rt-app |