Initial import of elftoolchain r2974.

Obtained from:	elftoolchain.org

1 files changed, 87 insertions, 0 deletions

diff --git a/libdwarf/dwarf_ranges.c b/libdwarf/dwarf_ranges.c
new file mode 100644
index 0000000..9ad6083
--- /dev/null
+++ b/libdwarf/dwarf_ranges.c
@@ -0,0 +1,87 @@
+/*-
+ * Copyright (c) 2009,2011 Kai Wang
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "_libdwarf.h"
+
+ELFTC_VCSID("$Id: dwarf_ranges.c 2075 2011-10-27 03:47:28Z jkoshy $");
+
+static int
+_dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_CU cu, Dwarf_Off off,
+    Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
+    Dwarf_Error *error)
+{
+	Dwarf_Rangelist rl;
+	int ret;
+
+	assert(cu != NULL);
+	if (_dwarf_ranges_find(dbg, off, &rl) == DW_DLE_NO_ENTRY) {
+		ret = _dwarf_ranges_add(dbg, cu, off, &rl, error);
+		if (ret != DW_DLE_NONE)
+			return (DW_DLV_ERROR);
+	}
+
+	*ranges = rl->rl_rgarray;
+	*ret_cnt = rl->rl_rglen;
+
+	if (ret_byte_cnt != NULL)
+		*ret_byte_cnt = cu->cu_pointer_size * rl->rl_rglen * 2;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Ranges **ranges,
+    Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt, Dwarf_Error *error)
+{
+
+	if (dbg == NULL || ranges == NULL || ret_cnt == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if (!dbg->dbg_info_loaded) {
+		if (_dwarf_info_load(dbg, 1, error) != DW_DLE_NONE)
+			return (DW_DLV_ERROR);
+	}
+
+	return (_dwarf_get_ranges(dbg, STAILQ_FIRST(&dbg->dbg_cu), offset,
+	    ranges, ret_cnt, ret_byte_cnt, error));
+}
+
+int
+dwarf_get_ranges_a(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Die die,
+    Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
+    Dwarf_Error *error)
+{
+
+	if (dbg == NULL || die == NULL || ranges == NULL || ret_cnt == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	return (_dwarf_get_ranges(dbg, die->die_cu, offset, ranges, ret_cnt,
+	    ret_byte_cnt, error));
+}