1 files changed, 312 insertions, 0 deletions
diff --git a/rtemstoolkit/elftoolchain/libdwarf/dwarf_attr.c b/rtemstoolkit/elftoolchain/libdwarf/dwarf_attr.c
new file mode 100644
index 0000000..a081d7b
--- /dev/null
+++ b/rtemstoolkit/elftoolchain/libdwarf/dwarf_attr.c
@@ -0,0 +1,312 @@
+/*-
+ * Copyright (c) 2007 John Birrell (jb@freebsd.org)
+ * Copyright (c) 2009 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_attr.c 3064 2014-06-06 19:35:55Z kaiwang27 $");
+
+int
+dwarf_attr(Dwarf_Die die, Dwarf_Half attr, Dwarf_Attribute *atp,
+    Dwarf_Error *error)
+{
+	Dwarf_Debug dbg;
+	Dwarf_Attribute at;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || atp == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if ((at = _dwarf_attr_find(die, attr)) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*atp = at;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_attrlist(Dwarf_Die die, Dwarf_Attribute **attrbuf,
+    Dwarf_Signed *attrcount, Dwarf_Error *error)
+{
+	Dwarf_Attribute at;
+	Dwarf_Debug dbg;
+	int i;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || attrbuf == NULL || attrcount == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if (die->die_ab->ab_atnum == 0) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*attrcount = die->die_ab->ab_atnum;
+
+	if (die->die_attrarray != NULL) {
+		*attrbuf = die->die_attrarray;
+		return (DW_DLV_OK);
+	}
+
+	if ((die->die_attrarray = malloc(*attrcount * sizeof(Dwarf_Attribute)))
+	    == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
+		return (DW_DLV_ERROR);
+	}
+
+	for (i = 0, at = STAILQ_FIRST(&die->die_attr);
+	     i < *attrcount && at != NULL; i++, at = STAILQ_NEXT(at, at_next))
+		die->die_attrarray[i] = at;
+
+	*attrbuf = die->die_attrarray;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_hasattr(Dwarf_Die die, Dwarf_Half attr, Dwarf_Bool *ret_bool,
+    Dwarf_Error *error)
+{
+	Dwarf_Debug dbg;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || ret_bool == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	*ret_bool = (_dwarf_attr_find(die, attr) != NULL);
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_attroffset(Dwarf_Attribute at, Dwarf_Off *ret_off, Dwarf_Error *error)
+{
+	Dwarf_Debug dbg;
+
+	dbg = at != NULL ? at->at_die->die_dbg : NULL;
+
+	if (at == NULL || ret_off == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	*ret_off = at->at_offset;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_lowpc(Dwarf_Die die, Dwarf_Addr *ret_lowpc, Dwarf_Error *error)
+{
+	Dwarf_Attribute at;
+	Dwarf_Debug dbg;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || ret_lowpc == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if ((at = _dwarf_attr_find(die, DW_AT_low_pc)) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*ret_lowpc = at->u[0].u64;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_highpc(Dwarf_Die die, Dwarf_Addr *ret_highpc, Dwarf_Error *error)
+{
+
+	return (dwarf_highpc_b(die, ret_highpc, NULL, NULL, error));
+}
+
+int
+dwarf_highpc_b(Dwarf_Die die, Dwarf_Addr *ret_highpc, Dwarf_Half *ret_form,
+    enum Dwarf_Form_Class *ret_class, Dwarf_Error *error)
+{
+	Dwarf_Attribute at;
+	Dwarf_Debug dbg;
+	Dwarf_CU cu;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || ret_highpc == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if ((at = _dwarf_attr_find(die, DW_AT_high_pc)) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*ret_highpc = at->u[0].u64;
+
+	if (ret_form != NULL) {
+		*ret_form = at->at_form;
+	}
+
+	if (ret_class != NULL) {
+		cu = die->die_cu;
+		*ret_class = dwarf_get_form_class(cu->cu_version,
+		    DW_AT_high_pc, cu->cu_length_size == 4 ? 4 : 8,
+		    at->at_form);
+	}
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_bytesize(Dwarf_Die die, Dwarf_Unsigned *ret_size, Dwarf_Error *error)
+{
+	Dwarf_Attribute at;
+	Dwarf_Debug dbg;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || ret_size == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if ((at = _dwarf_attr_find(die, DW_AT_byte_size)) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*ret_size = at->u[0].u64;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_bitsize(Dwarf_Die die, Dwarf_Unsigned *ret_size, Dwarf_Error *error)
+{
+	Dwarf_Attribute at;
+	Dwarf_Debug dbg;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || ret_size == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if ((at = _dwarf_attr_find(die, DW_AT_bit_size)) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*ret_size = at->u[0].u64;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_bitoffset(Dwarf_Die die, Dwarf_Unsigned *ret_size, Dwarf_Error *error)
+{
+	Dwarf_Attribute at;
+	Dwarf_Debug dbg;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || ret_size == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if ((at = _dwarf_attr_find(die, DW_AT_bit_offset)) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*ret_size = at->u[0].u64;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_srclang(Dwarf_Die die, Dwarf_Unsigned *ret_lang, Dwarf_Error *error)
+{
+	Dwarf_Attribute at;
+	Dwarf_Debug dbg;
+
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || ret_lang == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if ((at = _dwarf_attr_find(die, DW_AT_language)) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*ret_lang = at->u[0].u64;
+
+	return (DW_DLV_OK);
+}
+
+int
+dwarf_arrayorder(Dwarf_Die die, Dwarf_Unsigned *ret_order, Dwarf_Error *error)
+{
+	Dwarf_Attribute at;
+	Dwarf_Debug dbg;
+	
+	dbg = die != NULL ? die->die_dbg : NULL;
+
+	if (die == NULL || ret_order == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
+		return (DW_DLV_ERROR);
+	}
+
+	if ((at = _dwarf_attr_find(die, DW_AT_ordering)) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
+		return (DW_DLV_NO_ENTRY);
+	}
+
+	*ret_order = at->u[0].u64;
+
+	return (DW_DLV_OK);
+}