From: Frank Ch. Eigler <fche@elastic.org>
Date: Tue, 22 Sep 2009 21:35:54 +0000 (-0400)
Subject: optimization: reduce generated C code size
X-Git-Tag: release-1.0~5
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=759e1d7665f9367650262b0aae18c18e3cc8d60f;p=systemtap.git

optimization: reduce generated C code size

* tapsets.cxx (uprobe_derived_probe_group::emit_module_decls): Don't
  emit unnecessary 0 initializers for .tfi and .sdt_semaphore_addr.
---

diff --git a/tapsets.cxx b/tapsets.cxx
index 8dda3918a..0767d4bf1 100644
--- a/tapsets.cxx
+++ b/tapsets.cxx
@@ -4457,15 +4457,14 @@ uprobe_derived_probe_group::emit_module_decls (systemtap_session& s)
       s.op->newline() << "{";
       string key = make_pbm_key (p);
       unsigned value = module_index[key];
-      s.op->line() << " .tfi=" << value << ",";
+      if (value != 0)
+        s.op->line() << " .tfi=" << value << ",";
       s.op->line() << " .address=(unsigned long)0x" << hex << p->addr << dec << "ULL,";
       s.op->line() << " .pp=" << lex_cast_qstring (*p->sole_location()) << ",";
       s.op->line() << " .ph=&" << p->name << ",";
 
       map<derived_probe*, Dwarf_Addr>::iterator its = s.sdt_semaphore_addr.find(p);
-      if (its == s.sdt_semaphore_addr.end())
-	s.op->line() << " .sdt_sem_address=(unsigned long)0x0,";
-      else
+      if (its != s.sdt_semaphore_addr.end())
         s.op->line() << " .sdt_sem_address=(unsigned long)0x"
                      << hex << its->second << dec << "ULL,";