Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/libdw/dwarf_highpc.c b/libdw/dwarf_highpc.c
new file mode 100644
index 0000000..2070254
--- /dev/null
+++ b/libdw/dwarf_highpc.c
@@ -0,0 +1,66 @@
+/* Return high PC attribute of DIE.
+ Copyright (C) 2003, 2005, 2012 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <dwarf.h>
+#include "libdwP.h"
+
+
+int
+dwarf_highpc (Dwarf_Die *die, Dwarf_Addr *return_addr)
+{
+ Dwarf_Attribute attr_high_mem;
+ Dwarf_Attribute *attr_high = INTUSE(dwarf_attr) (die, DW_AT_high_pc,
+ &attr_high_mem);
+ if (attr_high == NULL)
+ return -1;
+
+ if (attr_high->form == DW_FORM_addr)
+ return INTUSE(dwarf_formaddr) (attr_high, return_addr);
+
+ /* DWARF 4 allows high_pc to be a constant offset from low_pc. */
+ Dwarf_Attribute attr_low_mem;
+ if (INTUSE(dwarf_formaddr) (INTUSE(dwarf_attr) (die, DW_AT_low_pc,
+ &attr_low_mem),
+ return_addr) == 0)
+ {
+ Dwarf_Word uval;
+ if (INTUSE(dwarf_formudata) (attr_high, &uval) == 0)
+ {
+ *return_addr += uval;
+ return 0;
+ }
+ __libdw_seterrno (DWARF_E_NO_ADDR);
+ }
+ return -1;
+}
+INTDEF(dwarf_highpc)