1 files changed, 100 insertions, 0 deletions
diff --git a/ld/ld_exp.h b/ld/ld_exp.h
new file mode 100644
index 0000000000000..50f654f1b692f
--- /dev/null
+++ b/ld/ld_exp.h
@@ -0,0 +1,100 @@
+/*-
+ * Copyright (c) 2011,2012 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.
+ *
+ * $Id: ld_exp.h 2525 2012-07-17 17:36:19Z kaiwang27 $
+ */
+
+enum ld_exp_op {
+	LEOP_ABS,
+	LEOP_ADD,
+	LEOP_ADDR,
+	LEOP_ALIGN,
+	LEOP_ALIGNOF,
+	LEOP_AND,
+	LEOP_ASSIGN,
+	LEOP_BLOCK,
+	LEOP_CONSTANT,
+	LEOP_DIV,
+	LEOP_DSA,
+	LEOP_DSE,
+	LEOP_DSRE,
+	LEOP_DEFINED,
+	LEOP_EQUAL,
+	LEOP_GE,
+	LEOP_GREATER,
+	LEOP_LENGTH,
+	LEOP_LE,
+	LEOP_LESSER,
+	LEOP_LOADADDR,
+	LEOP_LOGICAL_AND,
+	LEOP_LOGICAL_OR,
+	LEOP_LSHIFT,
+	LEOP_MAX,
+	LEOP_MIN,
+	LEOP_MINUS,
+	LEOP_MOD,
+	LEOP_MUL,
+	LEOP_NE,
+	LEOP_NEGATION,
+	LEOP_NEXT,
+	LEOP_NOT,
+	LEOP_OR,
+	LEOP_ORIGIN,
+	LEOP_RSHIFT,
+	LEOP_SEGMENT_START,
+	LEOP_SIZEOF,
+	LEOP_SIZEOF_HEADERS,
+	LEOP_SECTION_NAME,
+	LEOP_SUBSTRACT,
+	LEOP_SYMBOL,
+	LEOP_SYMBOLIC_CONSTANT,
+	LEOP_TRINARY,
+};
+
+struct ld_exp {
+	enum ld_exp_op le_op;	/* expression operator */
+	struct ld_exp *le_e1;	/* fisrt operand */
+	struct ld_exp *le_e2;	/* second operand */
+	struct ld_exp *le_e3;	/* third operand */
+	struct ld_script_assign *le_assign; /* assignment */
+	char *le_name;		/* symbol/section name */
+	unsigned le_par;	/* parenthesis */
+	int64_t le_val;		/* constant value */
+};
+
+struct ld_exp *ld_exp_assign(struct ld *, struct ld_script_assign *);
+struct ld_exp *ld_exp_binary(struct ld *, enum ld_exp_op, struct ld_exp *,
+    struct ld_exp *);
+struct ld_exp *ld_exp_constant(struct ld *, int64_t);
+int64_t ld_exp_eval(struct ld *, struct ld_exp *);
+void ld_exp_dump(struct ld *, struct ld_exp *);
+struct ld_exp *ld_exp_name(struct ld *, const char *);
+struct ld_exp *ld_exp_sizeof_headers(struct ld *);
+struct ld_exp *ld_exp_symbol(struct ld *, const char *);
+struct ld_exp *ld_exp_symbolic_constant(struct ld *, const char *);
+struct ld_exp *ld_exp_trinary(struct ld *, struct ld_exp *, struct ld_exp *,
+    struct ld_exp *);
+struct ld_exp *ld_exp_unary(struct ld *, enum ld_exp_op, struct ld_exp *);
+void ld_exp_free(struct ld_exp *);