systemc: Stop using python init to set up predefined message ids.

We can now be sure register_id will work even mid static initializers,
so we don't have to use python initialization as a hook to install
these predefined message ids.

Change-Id: I2e4d0c678ddda0a9ce5b114bdf1710f36e955f23
Reviewed-on: https://gem5-review.googlesource.com/c/13976
Maintainer: Gabe Black <gabeblack@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>

src/systemc/utils/report.cc

@@ -29,8 +29,6 @@
 
 #include "systemc/utils/report.hh"
 
-#include "systemc/core/python.hh"
-
 namespace sc_gem5
 {
 
@@ -76,42 +74,11 @@ std::unique_ptr<sc_core::sc_report> globalReportCache;
 
 bool reportWarningsAsErrors = false;
 
-DefaultReportMessages *&
-DefaultReportMessages::top()
-{
-    static DefaultReportMessages *top_ptr = nullptr;
-    return top_ptr;
-}
-
-void
-DefaultReportMessages::install()
+DefaultReportMessages::DefaultReportMessages(
+        std::initializer_list<std::pair<int, const char *>> msgs)
 {
     for (auto &p: msgs)
         sc_core::sc_report::register_id(p.first, p.second);
 }
 
-DefaultReportMessages::DefaultReportMessages(
-        std::initializer_list<std::pair<int, const char *>> msgs) :
-    next(top()), msgs(msgs)
-{
-    top() = this;
-}
-
-void
-DefaultReportMessages::installAll()
-{
-    for (DefaultReportMessages *ptr = top(); ptr; ptr = ptr->next)
-        ptr->install();
-}
-
-namespace
-{
-
-struct InstallDefaultReportMessages : public PythonReadyFunc
-{
-    void run() override { DefaultReportMessages::installAll(); }
-} messageInstaller;
-
-} // anonymous namespace
-
 } // namespace sc_gem5

src/systemc/utils/report.hh

@@ -111,17 +111,8 @@ extern bool reportWarningsAsErrors;
 
 struct DefaultReportMessages
 {
-  protected:
-    static DefaultReportMessages *&top();
-    DefaultReportMessages *next;
-
-    std::initializer_list<std::pair<int, const char *>> msgs;
-    void install();
-
   public:
     DefaultReportMessages(std::initializer_list<std::pair<int, const char *>>);
-
-    static void installAll();
 };
 
 } // namespace sc_gem5