* merge.cc (Output_merge_string::do_add_input_section): Count strings

	to reserve space in merged_strings vector. Keep total input size
	for stats.
	(Output_merge_string::do_print_merge_stats): Print total input size.
	* merge.h (Output_merge_string): Add input_size_ field.
	* stringpool.cc (Stringpool_template::string_length): Move
	implementations out of Stringpool_template class and place in
	stringpool.h.
	* stringpool.h (string_length): Move out of Stringpool_template.

5 files changed, 76 insertions, 47 deletions

diff --git a/gold/ChangeLog b/gold/ChangeLog
index cc54145..8dcb05f 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,15 @@
+2010-08-03  Cary Coutant  <ccoutant@google.com>
+
+	* merge.cc (Output_merge_string::do_add_input_section): Count strings
+	to reserve space in merged_strings vector. Keep total input size
+	for stats.
+	(Output_merge_string::do_print_merge_stats): Print total input size.
+	* merge.h (Output_merge_string): Add input_size_ field.
+	* stringpool.cc (Stringpool_template::string_length): Move
+	implementations out of Stringpool_template class and place in
+	stringpool.h.
+	* stringpool.h (string_length): Move out of Stringpool_template.
+
 2010-08-03  Ian Lance Taylor  <iant@google.com>
 
 	PR 11712
diff --git a/gold/merge.cc b/gold/merge.cc
index 6c512a8..9fb5845 100644
--- a/gold/merge.cc
+++ b/gold/merge.cc
@@ -533,6 +533,7 @@ Output_merge_string<Char_type>::do_add_input_section(Relobj* object,
 
   const Char_type* p = reinterpret_cast<const Char_type*>(pdata);
   const Char_type* pend = p + len / sizeof(Char_type);
+  const Char_type* pend0 = pend;
 
   if (len % sizeof(Char_type) != 0)
     {
@@ -543,39 +544,54 @@ Output_merge_string<Char_type>::do_add_input_section(Relobj* object,
       return false;
     }
 
-  size_t count = 0;
+  if (pend[-1] != 0)
+    {
+      gold_warning(_("%s: last entry in mergeable string section '%s' "
+		     "not null terminated"),
+		   object->name().c_str(),
+		   object->section_name(shndx).c_str());
+      // Find the end of the last NULL-terminated string in the buffer.
+      while (pend0 > p && pend0[-1] != 0)
+	--pend0;
+    }
 
   Merged_strings_list* merged_strings_list =
       new Merged_strings_list(object, shndx);
   this->merged_strings_lists_.push_back(merged_strings_list);
   Merged_strings& merged_strings = merged_strings_list->merged_strings;
 
+  // Count the number of strings in the section and size the list.
+  size_t count = 0;
+  for (const Char_type* pt = p; pt < pend0; pt += string_length(pt) + 1)
+    ++count;
+  if (pend0 < pend)
+    ++count;
+  merged_strings.reserve(count + 1);
+
   // The index I is in bytes, not characters.
   section_size_type i = 0;
-  while (i < len)
+  while (p < pend0)
     {
-      const Char_type* pl;
-      for (pl = p; *pl != 0; ++pl)
-	{
-	  if (pl >= pend)
-	    {
-	      gold_warning(_("%s: last entry in mergeable string section '%s' "
-			     "not null terminated"),
-			   object->name().c_str(),
-			   object->section_name(shndx).c_str());
-	      break;
-	    }
-	}
+      size_t len = string_length(p);
+
+      Stringpool::Key key;
+      this->stringpool_.add_with_length(p, len, true, &key);
+
+      merged_strings.push_back(Merged_string(i, key));
+
+      p += len + 1;
+      i += (len + 1) * sizeof(Char_type);
+    }
+  if (p < pend)
+    {
+      size_t len = pend - p;
 
       Stringpool::Key key;
-      this->stringpool_.add_with_length(p, pl - p, true, &key);
+      this->stringpool_.add_with_length(p, len, true, &key);
 
-      section_size_type bytelen_with_null = ((pl - p) + 1) * sizeof(Char_type);
       merged_strings.push_back(Merged_string(i, key));
 
-      p = pl + 1;
-      i += bytelen_with_null;
-      ++count;
+      i += (len + 1) * sizeof(Char_type);
     }
 
   // Record the last offset in the input section so that we can
@@ -583,6 +599,7 @@ Output_merge_string<Char_type>::do_add_input_section(Relobj* object,
   merged_strings.push_back(Merged_string(i, 0));
 
   this->input_count_ += count;
+  this->input_size_ += len;
 
   // For script processing, we keep the input sections.
   if (this->keeps_input_sections())
@@ -701,7 +718,9 @@ Output_merge_string<Char_type>::do_print_merge_stats(const char* section_name)
 {
   char buf[200];
   snprintf(buf, sizeof buf, "%s merged %s", section_name, this->string_name());
-  fprintf(stderr, _("%s: %s input: %zu\n"),
+  fprintf(stderr, _("%s: %s input bytes: %zu\n"),
+	  program_name, buf, this->input_size_);
+  fprintf(stderr, _("%s: %s input strings: %zu\n"),
 	  program_name, buf, this->input_count_);
   this->stringpool_.print_stats(buf);
 }
diff --git a/gold/merge.h b/gold/merge.h
index b1284ae..675739e 100644
--- a/gold/merge.h
+++ b/gold/merge.h
@@ -462,7 +462,7 @@ class Output_merge_string : public Output_merge_base
  public:
   Output_merge_string(uint64_t addralign)
     : Output_merge_base(sizeof(Char_type), addralign), stringpool_(),
-      merged_strings_lists_(), input_count_(0)
+      merged_strings_lists_(), input_count_(0), input_size_(0)
   {
     gold_assert(addralign <= sizeof(Char_type));
     this->stringpool_.set_no_zero_null();
@@ -566,6 +566,8 @@ class Output_merge_string : public Output_merge_base
   Merged_strings_lists merged_strings_lists_;
   // The number of entries seen in input files.
   size_t input_count_;
+  // The total size of input sections.
+  size_t input_size_;
 };
 
 } // End namespace gold.
diff --git a/gold/stringpool.cc b/gold/stringpool.cc
index 10d6d27..4ddba8d 100644
--- a/gold/stringpool.cc
+++ b/gold/stringpool.cc
@@ -87,28 +87,6 @@ Stringpool_template<Stringpool_char>::reserve(unsigned int n)
   this->string_set_.swap(new_string_set);
 }
 
-// Return the length of a string of arbitrary character type.
-
-template<typename Stringpool_char>
-size_t
-Stringpool_template<Stringpool_char>::string_length(const Stringpool_char* p)
-{
-  size_t len = 0;
-  for (; *p != 0; ++p)
-    ++len;
-  return len;
-}
-
-// Specialize string_length for char.  Maybe we could just use
-// std::char_traits<>::length?
-
-template<>
-inline size_t
-Stringpool_template<char>::string_length(const char* p)
-{
-  return strlen(p);
-}
-
 // Compare two strings of arbitrary character type for equality.
 
 template<typename Stringpool_char>
diff --git a/gold/stringpool.h b/gold/stringpool.h
index f353c9d..2f9a313 100644
--- a/gold/stringpool.h
+++ b/gold/stringpool.h
@@ -32,6 +32,28 @@ namespace gold
 
 class Output_file;
 
+// Return the length of a string in units of Char_type.
+
+template<typename Char_type>
+inline size_t
+string_length(const Char_type* p)
+{
+  size_t len = 0;
+  for (; *p != 0; ++p)
+    ++len;
+  return len;
+}
+
+// Specialize string_length for char.  Maybe we could just use
+// std::char_traits<>::length?
+
+template<>
+inline size_t
+string_length(const char* p)
+{
+  return strlen(p);
+}
+
 // A Stringpool is a pool of unique strings.  It provides the
 // following features:
 
@@ -266,10 +288,6 @@ class Stringpool_template
   Stringpool_template(const Stringpool_template&);
   Stringpool_template& operator=(const Stringpool_template&);
 
-  // Return the length of a string in units of Stringpool_char.
-  static size_t
-  string_length(const Stringpool_char*);
-
   // Return whether two strings are equal.
   static bool
   string_equal(const Stringpool_char*, const Stringpool_char*);