CI timeout + line-info in releases (#279)

* Update perfetto args.gn.in

- remove enable_perfetto_tools_trace_to_text (unused)

* core timeout implementation

- requires OMNITRACE_CI=ON
- requires OMNITRACE_CI_TIMEOUT=<sec>
- adds pthread_self and std::this_thread::get_id to thread info
- pthread_create_gotcha stores native handles (pthread_self)

* Testing updates

- improve detection of segfault/failures with PASS_REGEX exists
- add OMNITRACE_CI_TIMEOUT env variable to all tests

* Line-info in releases

- e.g. -g1 + more options to minimize size of debug info

* Fix typo in config exit action message

* OMNITRACE_UNLIKELY around debug/verbose messages

* format fixes

* Overflow tests + capability check

* transpose example update

- link to threads library

* roctracer/rocprofiler update

- in ROCm 5.5.0, cannot include rocprofiler.h and roctracer.h in same file due to conflicting enum defs
- Moved HSA tracing setup/shutdown to component::roctracer

* roctracer update

- fix definition of roctracer::setup when disabled

* Update fork example

- detach threads on main PID
- flush io outputs when printing info

* Update overflow tests

- pass regular expressions
- overflow on PERF_COUNT_SW_CPU_CLOCK event

* fork gotcha update

- use getpid() instead of getppid()

* update fork example

- wait on threads calling fork

* timeout update

- wait on timeout thread to launch before proceeding

examples/fork/fork.cpp

@@ -9,16 +9,22 @@
 #include <sys/wait.h>
 #include <thread>
 #include <unistd.h>
+#include <vector>
 
 void
 print_info(const char* _name)
 {
+    fflush(stdout);
+    fflush(stderr);
     printf("[%s] pid = %i, ppid = %i\n", _name, getpid(), getppid());
+    fflush(stdout);
+    fflush(stderr);
 }
 
 int
 run(const char* _name, int nchildren)
 {
+    auto _threads = std::vector<std::thread>{};
     for(int i = 0; i < nchildren; ++i)
     {
         omnitrace_user_push_region("launch_child");
@@ -35,7 +41,7 @@ run(const char* _name, int nchildren)
                 exit(EXIT_SUCCESS);
             }
         };
-        std::thread{ _run }.join();
+        _threads.emplace_back(_run);
         omnitrace_user_pop_region("launch_child");
     }
 
@@ -70,6 +76,9 @@ run(const char* _name, int nchildren)
         }
     }
 
+    for(auto& itr : _threads)
+        itr.join();
+
     omnitrace_user_pop_region("wait_for_children");
     return _status;
 }