dissect: Show macro definitions

Add the ability to dissect to see macro definitions. The patch does not
add full support for the usage of macros, but only their definitions.

Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

2 files changed, 14 insertions, 2 deletions

diff --git a/dissect.c b/dissect.c
index 0d6c3288..7d5d92c9 100644
--- a/dissect.c
+++ b/dissect.c
@@ -610,6 +610,11 @@ static struct symbol *do_initializer(struct symbol *type, struct expression *exp
 	return type;
 }
 
+static inline bool is_macro(struct symbol *sym)
+{
+	return (sym->namespace == NS_MACRO || sym->namespace == NS_UNDEF);
+}
+
 static inline struct symbol *do_symbol(struct symbol *sym)
 {
 	struct symbol *type = base_type(sym);
@@ -654,7 +659,7 @@ static void do_sym_list(struct symbol_list *list)
 
 static inline bool valid_namespace(enum namespace ns)
 {
-	return (ns == NS_STRUCT || ns == NS_SYMBOL);
+	return (ns == NS_MACRO || ns == NS_UNDEF || ns == NS_STRUCT || ns == NS_SYMBOL);
 }
 
 static void do_file(char *file)
@@ -668,6 +673,12 @@ static void do_file(char *file)
 
 	DO_LIST(file_scope->symbols, sym,
 		if (input_streams[sym->pos.stream].fd != -1 && valid_namespace(sym->namespace)) {
+			if (is_macro(sym)) {
+				sym->kind = 'd';
+				reporter->r_symdef(sym);
+				continue;
+			}
+
 			if (sym->type == SYM_STRUCT || sym->type == SYM_UNION) {
 				sym->ctype.base_type = sym;
 				examine_sym_node(sym, NULL);
diff --git a/test-dissect.c b/test-dissect.c
index 58b3e633..3d870a97 100644
--- a/test-dissect.c
+++ b/test-dissect.c
@@ -57,11 +57,12 @@ static void r_symbol(unsigned mode, struct position *pos, struct symbol *sym)
 		show_typename(sym->ctype.base_type));
 
 	switch (sym->kind) {
+	case 'd':
+		break;
 	case 's':
 		if (sym->type == SYM_STRUCT || sym->type == SYM_UNION)
 			break;
 		goto err;
-
 	case 'f':
 		if (sym->type != SYM_BAD && sym->ctype.base_type->type != SYM_FN)
 			goto err;