Function declared extern "C" does not appear in getdecls() list

[Marcus Bartholomeu <bartho at inf dot ufes dot br>]

Hello,

I noticed that a function that is declared as extern "C" in an include 
file does not appear in the getdecls() list for the top level.

Example:
-----------------------------------------
// file: test.cc

// next line may be included by an #include directive
extern "C" int test_function();

int test_function1(){};
int test_function() {};
int test_function2(){};
-----------------------------------------


I am using this code to dump the declarations list: (called just after 
compile_file() in toplev.c from the gcc-2.95-3)


{
  tree decl;

  for (decl = getdecls(); decl != NULL_TREE; decl = TREE_CHAIN(decl)) {
    printf("DUMP: %s(%d): ",
           tree_code_name[TREE_CODE (decl)],
           TREE_CODE (decl));

    /* test if declaration has a name to print */
    if ((DECL_NAME(decl) > 0) && (IDENTIFIER_POINTER(DECL_NAME(decl)) > 
0)) {
      printf("%s (%s), in %s.\n",
	     IDENTIFIER_POINTER(DECL_NAME(decl)),
	     tree_code_name[TREE_CODE(TREE_TYPE(decl))],
	     DECL_SOURCE_FILE(decl));
    } else {
      printf("!NONAME!, in %s.\n",
             DECL_SOURCE_FILE(decl));
    }
  } // for
}



The output is just:

DUMP: function_decl(29): test_function2 (function_type), in test.cc.
DUMP: function_decl(29): test_function1 (function_type), in test.cc.
... (other declarations are from <internal>) ...


The function test_function() does not appear!

As this function is getting compiled anyway (in an larger exemple), I 
think there is another way to find it's FUNCTION-DECL node. Can someone 
help me to find it? I need it because I'm tying to extract the hierarchy 
from a C++ source (including variables).