1 files changed, 65 insertions, 0 deletions
diff --git a/dwarfgen/strtabdata.h b/dwarfgen/strtabdata.h
new file mode 100755
index 0000000..d005055
--- /dev/null
+++ b/dwarfgen/strtabdata.h
@@ -0,0 +1,65 @@
+#ifndef STRTABDATA_H
+#define STRTABDATA_H
+/*
+  Copyright (C) 2010-2011 David Anderson.  
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms of version 2 of the GNU General Public License as
+  published by the Free Software Foundation.
+
+  This program is distributed in the hope that it would be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+  You should have received a copy of the GNU General Public License along
+  with this program; if not, write the Free Software Foundation, Inc., 51
+  Franklin Street - Fifth Floor, Boston MA 02110-1301, USA.
+
+*/
+
+
+// strtabdata.h
+// Creates a string table in a way consistent with
+// elf string tables. The zero index is a null byte always.
+
+class strtabdata {
+public:
+    strtabdata(): data_(new char[1000]),
+        datalen_(1000), nexttouse_(0) { data_[0] = 0; nexttouse_ = 1;};
+    ~strtabdata()  { delete[]data_; };
+    unsigned addString(const std::string & newstr) {
+        // The 1 is for the terminating null byte.
+        unsigned nsz = newstr.size() +1;
+        unsigned needed = nexttouse_ + nsz;
+        if (needed >= datalen_) {
+            unsigned baseincr = nsz;
+            unsigned altincr = datalen_*2;
+            if(altincr> baseincr) {
+                baseincr = altincr;
+            }
+            unsigned newsize = datalen_ + baseincr;
+            char *newdata = new char [newsize];
+            memcpy(newdata, data_, nexttouse_);
+            delete [] data_;
+            data_ = newdata;
+            datalen_ = newsize;
+        }
+        memcpy(data_ + nexttouse_, newstr.c_str(),nsz);
+        unsigned newstrindex = nexttouse_;
+        nexttouse_ += nsz;
+        return newstrindex;
+    };
+    void *exposedata() {return (void *)data_;};
+    unsigned exposelen() const {return nexttouse_;};
+private:
+    char *   data_;
+
+    // datalen_ is the size in bytes pointed to by data_ .
+    unsigned datalen_;
+
+    // nexttouse_ is the index of the next (unused) byte in
+    // data_ , so it is also the amount of space in data_ that
+    // is in use.
+    unsigned nexttouse_;
+};
+#endif /* STRTABDATA_H */