2005-09-28 Frank Ch. Eigler <fche@elastic.org>

	PR 1182.
	* main.cxx (main): Support -D macro-setting option.
	* stap.1.in: Document it and related macros.
	* buildrun.cxx (compile_pass): Emit macro definitions.
	* translate.cxx (translate_pass): Guard limit macros with #ifdef.
	Eliminate MAXCONCURRENCY macro.
	* elaborate.h (systemtap_session): Add "macros" field.
	* parse.cxx (parse_if_statement): Clear "elseblock" if needed.

2005-09-28  Frank Ch. Eigler  <fche@elastic.org>

	PR 1182.
	* systemtap.samples/control_limits.*: New test.

1 files changed, 6 insertions, 1 deletions

diff --git a/main.cxx b/main.cxx
index dcdf67f5..860e18b0 100644
--- a/main.cxx
+++ b/main.cxx
@@ -71,6 +71,7 @@ usage (systemtap_session& s)
   for (unsigned i=0; i<s.include_path.size(); i++)
     clog << "              " << s.include_path[i] << endl;
   clog
+    << "   -D NM=VAL  emit macro definition into generated C code" << endl
     << "   -R DIR     look in DIR for runtime, instead of" << endl
     <<      "              " << s.runtime_path << endl
     // << "   -r RELEASE use kernel RELEASE, instead of" << endl
@@ -135,7 +136,7 @@ main (int argc, char * const argv [])
 
   while (true)
     {
-      int grc = getopt (argc, argv, "hVvp:I:e:o:tR:r:m:kgc:x:");
+      int grc = getopt (argc, argv, "hVvp:I:e:o:tR:r:m:kgc:x:D:");
       if (grc < 0)
         break;
       switch (grc)
@@ -204,6 +205,10 @@ main (int argc, char * const argv [])
 	  s.target_pid = atoi(optarg);
 	  break;
 
+	case 'D':
+	  s.macros.push_back (string (optarg));
+	  break;
+
         case 'h':
         default:
           usage (s);