[PATCH v2 02/10] Add debuginfo interface for enum type size

[HATAYAMA Daisuke]

This is need to determine if a specified enumeration type is present
in a given debug information.

In this patch set, I'll use this to check if enum pageflags is
present.

The newly introduced interface is a simple extension from the existing
one for enumeration value.

Signed-off-by: HATAYAMA Daisuke <d.hatayama at jp.fujitsu.com>
---

 dwarf_info.c   |   18 +++++++++++++++++-
 dwarf_info.h   |    1 +
 makedumpfile.h |   13 +++++++++++--
 3 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/dwarf_info.c b/dwarf_info.c
index 94b920a..09a8e1e 100644
--- a/dwarf_info.c
+++ b/dwarf_info.c
@@ -607,7 +607,7 @@ search_structure(Dwarf_Die *die, int *found)
 static void
 search_number(Dwarf_Die *die, int *found)
 {
-	int tag;
+	int tag, bytesize;
 	Dwarf_Word const_value;
 	Dwarf_Attribute attr;
 	Dwarf_Die child, *walker;
@@ -618,6 +618,22 @@ search_number(Dwarf_Die *die, int *found)
 		if (tag != DW_TAG_enumeration_type)
 			continue;
 
+		if (dwarf_info.cmd == DWARF_INFO_GET_ENUMERATION_TYPE_SIZE) {
+		   		   name = dwarf_diename(die);
+
+			if (!name || strcmp(name, dwarf_info.struct_name))
+			   	     continue;
+
+			if ((bytesize = dwarf_bytesize(die)) <= 0)
+			   	      	continue;
+
+			*found = TRUE;
+
+			dwarf_info.struct_size = bytesize;
+
+			return;
+				}
+
 		if (dwarf_child(die, &child) != 0)
 			continue;
 
diff --git a/dwarf_info.h b/dwarf_info.h
index 8d0084d..185cbb6 100644
--- a/dwarf_info.h
+++ b/dwarf_info.h
@@ -46,6 +46,7 @@ enum {
 	DWARF_INFO_CHECK_SYMBOL_ARRAY_TYPE,
 	DWARF_INFO_GET_SYMBOL_TYPE,
 	DWARF_INFO_GET_MEMBER_TYPE,
+	DWARF_INFO_GET_ENUMERATION_TYPE_SIZE,
 };
 
 char *get_dwarf_module_name(void);
diff --git a/makedumpfile.h b/makedumpfile.h
index 97aca2a..20f4d99 100644
--- a/makedumpfile.h
+++ b/makedumpfile.h
@@ -256,14 +256,23 @@ do { \
 #define ARRAY_LENGTH(X)		(array_table.X)
 #define SIZE_INIT(X, Y) \
 do { \
-	if ((SIZE(X) = get_structure_size(Y, 0)) == FAILED_DWARFINFO) \
+	if ((SIZE(X) = get_structure_size(Y, DWARF_INFO_GET_STRUCT_SIZE))	\
+		== FAILED_DWARFINFO) \
 		return FALSE; \
 } while (0)
 #define TYPEDEF_SIZE_INIT(X, Y) \
 do { \
-	if ((SIZE(X) = get_structure_size(Y, 1)) == FAILED_DWARFINFO) \
+	if ((SIZE(X) = get_structure_size(Y, DWARF_INFO_GET_TYPEDEF_SIZE)) \
+		== FAILED_DWARFINFO) \
 		return FALSE; \
 } while (0)
+#define ENUM_TYPE_SIZE_INIT(X, Y) \
+do { \
+	if ((SIZE(X) = get_structure_size(Y,	\
+		DWARF_INFO_GET_ENUMERATION_TYPE_SIZE))	\
+			== FAILED_DWARFINFO)				\
+	return FALSE; \
+} while (0)
 #define OFFSET_INIT(X, Y, Z) \
 do { \
 	if ((OFFSET(X) = get_member_offset(Y, Z, DWARF_INFO_GET_MEMBER_OFFSET)) \