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rt-app emulates typical mobile and real-time systems use cases and gives runtime information
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vireshk/rt-app
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README for rt-app @VERSION@ ============== INTRODUCTION ============== rt-app is a test application that starts multiple periodic threads in order to simulate a real-time periodic load. Code is currently maintained on GitHub: http://github.com/scheduler-tools/rt-app ============== REQUIREMENTS ============== rt-app runs on GNU/Linux. It needs bash, autoconf, automake, libtool, libjson-c, GNU make and a recent compiler (tested on: gcc) for basic features. ================= BUILDING json-c ================= If you are not happy using the version installed by your packaging system, if it does not provide static libraries and you need them, need to cross-compile, build it from source like this: retrieve source code available here: https://github.com/json-c/json-c cross-compile json-c and build both static and shared libraries for aarch64: export ac_cv_func_malloc_0_nonnull=yes export ac_cv_func_realloc_0_nonnull=yes ./autogen.sh ./configure --host=aarch64-linux-gnu --enable-shared --enable-static make ================================ BUILDING AND INSTALLING rt-app ================================ VARIANT A) cross-compile a static rt-app for aarch64, using your own json-c build ---------------------------------------------------------------------- (...that wasn't installed (or not into the standard locations)) export ac_cv_lib_json_c_json_object_from_file=yes ./autogen.sh ./configure --host=aarch64-linux-gnu LDFLAGS="-L<absolute path to json repo>" CFLAGS="-I<path to parent of json-c repo>" --with-deadline AM_LDFLAGS="-all-static" make configure supports the usual flags, like `--help` and `--prefix`, there is an install target in the Makefile as well. `--with-deadline` enables support for SCHED_DEADLINE. EXAMPLE: with a directory structure like the following: $ tree -d -L 2 |-- json-c | |-- autoconf-archive | |-- autom4te.cache | |-- cmake | |-- fuzz | `-- tests `-- rt-app |-- autom4te.cache |-- build-aux |-- doc |-- libdl |-- m4 `-- src you would run: cd rt-app export ac_cv_lib_json_c_json_object_from_file=yes ./autogen.sh ./configure --host=aarch64-linux-gnu LDFLAGS="-L$PWD/../json-c" CFLAGS="-I$PWD/../" --with-deadline AM_LDFLAGS="-all-static" make and you should get a static rt-app executable in the src directory. VARIANT B) regular build of rt-app for your host against json-c in canonical locations --------------------------------------------------------------------------- (and installation with PREFIX=/usr/local) ./autogen.sh ./configure --with-deadline make make install ======= USAGE ======= $ rt-app [-l <log level>] <config_file> where config file is a full/relative path to a json file (look under doc/examples for examples) or "-" (without quotes) to read JSON data from stdin.
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