genksyms: Do not expand internal types
Consider structures, unions and enums defined in the source file as
internal and do not expand them. This way, changes to e.g. struct
serial_private in drivers/tty/serial/8250_pci.c will not affect the
checksum of the pciserial_* exports.
diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c
index 6d3fda0..8a10649 100644
--- a/scripts/genksyms/genksyms.c
+++ b/scripts/genksyms/genksyms.c
@@ -40,7 +40,8 @@
static FILE *debugfile;
int cur_line = 1;
-char *cur_filename;
+char *cur_filename, *source_file;
+int in_source_file;
static int flag_debug, flag_dump_defs, flag_reference, flag_dump_types,
flag_preserve, flag_warnings;
diff --git a/scripts/genksyms/genksyms.h b/scripts/genksyms/genksyms.h
index 7ec52ae..3bffdca 100644
--- a/scripts/genksyms/genksyms.h
+++ b/scripts/genksyms/genksyms.h
@@ -37,6 +37,7 @@
struct string_list {
struct string_list *next;
enum symbol_type tag;
+ int in_source_file;
char *string;
};
@@ -57,7 +58,8 @@
#define YYSTYPE yystype
extern int cur_line;
-extern char *cur_filename;
+extern char *cur_filename, *source_file;
+extern int in_source_file;
struct symbol *find_symbol(const char *name, enum symbol_type ns, int exact);
struct symbol *add_symbol(const char *name, enum symbol_type type,
diff --git a/scripts/genksyms/lex.l b/scripts/genksyms/lex.l
index 400ae06..f770071 100644
--- a/scripts/genksyms/lex.l
+++ b/scripts/genksyms/lex.l
@@ -116,6 +116,7 @@
cur_node->tag = \
find_symbol(cur_node->string, SYM_ENUM_CONST, 1)?\
SYM_ENUM_CONST : SYM_NORMAL ; \
+ cur_node->in_source_file = in_source_file; \
} while (0)
#define APP _APP(yytext, yyleng)
@@ -166,6 +167,13 @@
cur_filename = memcpy(xmalloc(e-file+1), file, e-file+1);
cur_line = atoi(yytext+2);
+ if (!source_file) {
+ source_file = xstrdup(cur_filename);
+ in_source_file = 1;
+ } else {
+ in_source_file = (strcmp(cur_filename, source_file) == 0);
+ }
+
goto repeat;
}
diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y
index a783ad4..23c3999 100644
--- a/scripts/genksyms/parse.y
+++ b/scripts/genksyms/parse.y
@@ -58,6 +58,13 @@
enum symbol_type type)
{
struct string_list *b = *body, *i = *ident, *r;
+
+ if (i->in_source_file) {
+ remove_node(keyw);
+ (*ident)->tag = type;
+ remove_list(body, ident);
+ return;
+ }
r = copy_node(i); r->tag = type;
r->next = (*keyw)->next; *body = r; (*keyw)->next = NULL;
add_symbol(i->string, type, b, is_extern);