Signed-off-by: Tomek Grabiec <[email protected]>
---
Makefile | 1 +
.../include/cafebabe/line_number_table_attribute.h | 60 +++++++++++
.../src/cafebabe/line_number_table_attribute.c | 108 ++++++++++++++++++++
test/arch-x86/Makefile | 1 +
test/jit/Makefile | 1 +
5 files changed, 171 insertions(+), 0 deletions(-)
create mode 100644 cafebabe/include/cafebabe/line_number_table_attribute.h
create mode 100644 cafebabe/src/cafebabe/line_number_table_attribute.c
diff --git a/Makefile b/Makefile
index 0acea71..a0c15fa 100644
--- a/Makefile
+++ b/Makefile
@@ -129,6 +129,7 @@ CAFEBABE_OBJS := \
constant_pool.o \
error.o \
field_info.o \
+ line_number_table_attribute.o \
method_info.o \
sourcefile_attribute.o \
stream.o
diff --git a/cafebabe/include/cafebabe/line_number_table_attribute.h
b/cafebabe/include/cafebabe/line_number_table_attribute.h
new file mode 100644
index 0000000..5e01f95
--- /dev/null
+++ b/cafebabe/include/cafebabe/line_number_table_attribute.h
@@ -0,0 +1,60 @@
+/*
+ * cafebabe - the class loader library in C
+ * Copyright (C) 2008 Vegard Nossum <[email protected]>
+ *
+ * This file is released under the GPL version 2 with the following
+ * clarification and special exception:
+ *
+ * Linking this library statically or dynamically with other modules is
+ * making a combined work based on this library. Thus, the terms and
+ * conditions of the GNU General Public License cover the whole
+ * combination.
+ *
+ * As a special exception, the copyright holders of this library give you
+ * permission to link this library with independent modules to produce an
+ * executable, regardless of the license terms of these independent
+ * modules, and to copy and distribute the resulting executable under terms
+ * of your choice, provided that you also meet, for each linked independent
+ * module, the terms and conditions of the license of that module. An
+ * independent module is a module which is not derived from or based on
+ * this library. If you modify this library, you may extend this exception
+ * to your version of the library, but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version.
+ *
+ * Please refer to the file LICENSE for details.
+ */
+
+#pragma once
+
+#ifndef CAFEBABE__LINE_NUMBER_TABLE_ATTRIBUTE_H
+#define CAFEBABE__LINE_NUMBER_TABLE_ATTRIBUTE_H
+
+#include <stdint.h>
+
+#include "cafebabe/attribute_array.h"
+#include "cafebabe/attribute_info.h"
+
+struct cafebabe_line_number_table_entry {
+ uint16_t start_pc;
+ uint16_t line_number;
+};
+
+/**
+ * The LineNumberTable attribute.
+ *
+ * See also section 4.7.8 of The Java Virtual Machine Specification.
+ */
+struct cafebabe_line_number_table_attribute {
+ uint16_t line_number_table_length;
+ struct cafebabe_line_number_table_entry *line_number_table;
+};
+
+int cafebabe_line_number_table_attribute_init(struct
cafebabe_line_number_table_attribute *a, struct cafebabe_stream *s);
+void cafebabe_line_number_table_attribute_deinit(struct
cafebabe_line_number_table_attribute *a);
+int cafebabe_read_line_number_table_attribute(
+ const struct cafebabe_class *class,
+ const struct cafebabe_attribute_array *attributes,
+ struct cafebabe_line_number_table_attribute *line_number_table_attrib);
+
+#endif
diff --git a/cafebabe/src/cafebabe/line_number_table_attribute.c
b/cafebabe/src/cafebabe/line_number_table_attribute.c
new file mode 100644
index 0000000..2f26f30
--- /dev/null
+++ b/cafebabe/src/cafebabe/line_number_table_attribute.c
@@ -0,0 +1,108 @@
+/*
+ * cafebabe - the class loader library in C
+ * Copyright (C) 2008 Vegard Nossum <[email protected]>
+ *
+ * This file is released under the GPL version 2 with the following
+ * clarification and special exception:
+ *
+ * Linking this library statically or dynamically with other modules is
+ * making a combined work based on this library. Thus, the terms and
+ * conditions of the GNU General Public License cover the whole
+ * combination.
+ *
+ * As a special exception, the copyright holders of this library give you
+ * permission to link this library with independent modules to produce an
+ * executable, regardless of the license terms of these independent
+ * modules, and to copy and distribute the resulting executable under terms
+ * of your choice, provided that you also meet, for each linked independent
+ * module, the terms and conditions of the license of that module. An
+ * independent module is a module which is not derived from or based on
+ * this library. If you modify this library, you may extend this exception
+ * to your version of the library, but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version.
+ *
+ * Please refer to the file LICENSE for details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "cafebabe/attribute_info.h"
+#include "cafebabe/line_number_table_attribute.h"
+#include "cafebabe/stream.h"
+
+int cafebabe_line_number_table_attribute_init(
+ struct cafebabe_line_number_table_attribute *a,
+ struct cafebabe_stream *s)
+{
+ if (cafebabe_stream_read_uint16(s, &a->line_number_table_length))
+ goto out;
+
+ a->line_number_table = cafebabe_stream_malloc(s,
+ sizeof(*a->line_number_table) * a->line_number_table_length);
+ if (!a->line_number_table)
+ goto out;
+
+ for (uint16_t i = 0; i < a->line_number_table_length; ++i) {
+ struct cafebabe_line_number_table_entry *e
+ = &a->line_number_table[i];
+
+ if (cafebabe_stream_read_uint16(s, &e->start_pc))
+ goto out_line_number_table;
+
+ if (cafebabe_stream_read_uint16(s, &e->line_number))
+ goto out_line_number_table;
+ }
+
+ if (!cafebabe_stream_eof(s)) {
+ s->cafebabe_errno = CAFEBABE_ERROR_EXPECTED_EOF;
+ goto out_line_number_table;
+ }
+
+ /* Success */
+ return 0;
+
+out_line_number_table:
+ free(a->line_number_table);
+out:
+ return 1;
+}
+
+void cafebabe_line_number_table_attribute_deinit(
+ struct cafebabe_line_number_table_attribute *a)
+{
+ free(a->line_number_table);
+}
+
+int cafebabe_read_line_number_table_attribute(
+ const struct cafebabe_class *class,
+ const struct cafebabe_attribute_array *attributes,
+ struct cafebabe_line_number_table_attribute *attrib)
+{
+ unsigned int line_number_table_index = 0;
+ if (cafebabe_attribute_array_get(attributes,
+ "LineNumberTable", class, &line_number_table_index))
+ {
+ attrib->line_number_table_length = 0;
+ attrib->line_number_table = NULL;
+ return 0;
+ }
+
+ const struct cafebabe_attribute_info *attribute
+ = &attributes->array[line_number_table_index];
+
+ struct cafebabe_stream stream;
+ cafebabe_stream_open_buffer(&stream,
+ attribute->info, attribute->attribute_length);
+
+ if (cafebabe_line_number_table_attribute_init(attrib, &stream))
+ {
+ NOT_IMPLEMENTED;
+ return -1;
+ }
+
+ cafebabe_stream_close_buffer(&stream);
+
+ return 0;
+}
diff --git a/test/arch-x86/Makefile b/test/arch-x86/Makefile
index 82206f4..c1f7872 100644
--- a/test/arch-x86/Makefile
+++ b/test/arch-x86/Makefile
@@ -38,6 +38,7 @@ OBJS = \
../../cafebabe/src/cafebabe/constant_value_attribute.o \
../../cafebabe/src/cafebabe/error.o \
../../cafebabe/src/cafebabe/field_info.o \
+ ../../cafebabe/src/cafebabe/line_number_table_attribute.o \
../../cafebabe/src/cafebabe/method_info.o \
../../cafebabe/src/cafebabe/sourcefile_attribute.o \
../../cafebabe/src/cafebabe/stream.o \
diff --git a/test/jit/Makefile b/test/jit/Makefile
index 653797f..267f3a7 100644
--- a/test/jit/Makefile
+++ b/test/jit/Makefile
@@ -9,6 +9,7 @@ OBJS = \
../../cafebabe/src/cafebabe/constant_pool.o \
../../cafebabe/src/cafebabe/error.o \
../../cafebabe/src/cafebabe/field_info.o \
+ ../../cafebabe/src/cafebabe/line_number_table_attribute.o \
../../cafebabe/src/cafebabe/method_info.o \
../../cafebabe/src/cafebabe/sourcefile_attribute.o \
../../cafebabe/src/cafebabe/stream.o \
--
1.6.0.6
------------------------------------------------------------------------------
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