How to fix permanent EXC_BAD_ACCESS exception in Xcode using SystemC? - xcode

Question

I want to write SystemC code using the Xcode IDE. I have set it all up and the code I use for testing my Installation builds just fine, but it runs always into Thread 1: EXC_BAD_ACCESS exception, no matter what I do.
I tried to comment everything out, until only the systemc header include and the sc_main was left. When I tried normal c++ code in a different project, to see if it was a general Xcode problem, it work fine and ran into no exception.
I use this generic Hello World-code to test my Installation:
#include <systemc>
//Hello_world is module name
SC_MODULE (hello_world) {
SC_CTOR (hello_world) {
// Nothing in constructor
}
void say_hello() {
//Print "Hello World" to the console.
std::cout << "Hello World.\n";
}
};
// sc_main in top level function like in C++ main
int sc_main(int argc, char* argv[]) {
hello_world hello("HELLO");
//Print the hello world
hello.say_hello();
return(0);
}
After the code ran for a few seconds, it always crashes with: Thread 1: EXC_BAD_ACCESS (code=2, address=0x7ffeef3ffff8).
EDIT:
My Config:
- SystemC: v2.3.3
- Xcode: v10.2.1 (10E1001)
- Compiler: (I ran gcc --version)
- LLV: v10.0.1 (clang-1001.0.46.4)
- c++: v4.2.1
Im using std=gnu++98 (Compiler Default) as c++language Dialect, everything else ran into build errors.

Answer 1

EXC_BAD_ACCESS happens when system can not return from an execution block, such as infinite loop or recursion.
you should take a look at stack trace in the Debugger navigator and see which function is getting called and never returns OR which function(s) are calling over and over.
Don't forget to run project in DEBUG mode. (NOT release)

Answer 2

If you're using SystemC 2.3.2, you might be running into the following issue (on macOS 10.13 or later): http://forums.accellera.org/topic/6079-make-check-return-fail/. This issue is assumed to be fixed in SystemC 2.3.3.
You can avoid it by compiling SystemC 2.3.2 with ../configure --disable-async-updates ... or by moving to SystemC 2.3.3 and enabling C++11 (might be the default on a recent Xcode version, you can check the value of the SC_CPLUSPLUS macro in your model).

Answer 3

I did it! I built SystemC with Cmake following the steps provided in this answer: Setting up a SystemC project with CMake: undefined reference to sc_core
. In the CMakeLists.txt I set CMAKE_CXX_STANDARD explicitly to 11 and built the project via the command line and cmake.
Thanks for the help:)