lib.h

   1 #ifndef LIB_H
   2 #define LIB_H
   3 /*
   4  * Basic helper routine descriptions for 'sparse'.
   5  *
   6  * Copyright (C) 2003 Transmeta Corp.
   7  *               2003 Linus Torvalds
   8  *
   9  *  Licensed under the Open Software License version 1.1
  10  */
  11
  12 extern unsigned int hexval(unsigned int c);
  13
  14 struct position {
  15         unsigned int type:6,
  16                      stream:10,
  17                      pos:14,
  18                      newline:1,
  19                      whitespace:1;
  20         unsigned int line;
  21 };
  22
  23 struct ident;
  24 struct token;
  25 struct symbol;
  26 struct symbol_list;
  27 struct statement;
  28 struct statement_list;
  29 struct expression;
  30 struct expression_list;
  31
  32 struct token *skip_to(struct token *, int);
  33 struct token *expect(struct token *, int, const char *);
  34 extern void warn(struct position, const char *, ...);
  35 extern void error(struct position, const char *, ...);
  36
  37 #define __DECLARE_ALLOCATOR(type, x)            \
  38         extern type *__alloc_##x(int);          \
  39         extern void show_##x##_alloc(void);     \
  40         extern void clear_##x##_alloc(void);
  41 #define DECLARE_ALLOCATOR(x) __DECLARE_ALLOCATOR(struct x, x)
  42
  43 DECLARE_ALLOCATOR(ident);
  44 DECLARE_ALLOCATOR(token);
  45 DECLARE_ALLOCATOR(symbol);
  46 DECLARE_ALLOCATOR(expression);
  47 DECLARE_ALLOCATOR(statement);
  48 DECLARE_ALLOCATOR(string);
  49 DECLARE_ALLOCATOR(scope);
  50 __DECLARE_ALLOCATOR(void, bytes);
  51
  52 #define LIST_NODE_NR (29)
  53
  54 struct ptr_list {
  55         int nr;
  56         struct ptr_list *prev;
  57         struct ptr_list *next;
  58         void *list[LIST_NODE_NR];
  59 };
  60
  61 #define ITERATE_FIRST 1
  62 #define ITERATE_LAST 2
  63 void iterate(struct ptr_list *,void (*callback)(void *, void *, int), void*);
  64 extern void add_ptr_list(struct ptr_list **, void *);
  65 extern void free_ptr_list(struct ptr_list **);
  66 extern int ptr_list_size(struct ptr_list *);
  67 extern char **handle_switch(char *arg, char **next);
  68 extern void add_pre_buffer(const char *fmt, ...);
  69
  70 extern unsigned int pre_buffer_size;
  71 extern unsigned char pre_buffer[8192];
  72 extern int include_fd;
  73 extern char *include;
  74 extern int preprocess_only;
  75
  76 extern void create_builtin_stream(void);
  77
  78 #define symbol_list_size(list) ptr_list_size((struct ptr_list *)(list))
  79 #define statement_list_size(list) ptr_list_size((struct ptr_list *)(list))
  80 #define expression_list_size(list) ptr_list_size((struct ptr_list *)(list))
  81
  82 static inline void add_symbol(struct symbol_list **list, struct symbol *sym)
  83 {
  84         add_ptr_list((struct ptr_list **)list, sym);
  85 }
  86
  87 static inline void add_statement(struct statement_list **list, struct statement *stmt)
  88 {
  89         add_ptr_list((struct ptr_list **)list, stmt);
  90 }
  91
  92 static inline void add_expression(struct expression_list **list, struct expression *expr)
  93 {
  94         add_ptr_list((struct ptr_list **)list, expr);
  95 }
  96
  97 static inline void symbol_iterate(struct symbol_list *list, void (*callback)(struct symbol *, void *, int), void *data)
  98 {
  99         iterate((struct ptr_list *)list, (void (*)(void *, void *, int))callback, data);
 100 }
 101
 102 static inline void statement_iterate(struct statement_list *list, void (*callback)(struct statement *, void *, int), void *data)
 103 {
 104         iterate((struct ptr_list *)list, (void (*)(void *, void *, int))callback, data);
 105 }
 106
 107 static inline void expression_iterate(struct expression_list *list, void (*callback)(struct expression *, void *, int), void *data)
 108 {
 109         iterate((struct ptr_list *)list, (void (*)(void *, void *, int))callback, data);
 110 }
 111
 112 #define PREPARE_PTR_LIST(head, ptr)                                                     \
 113         do {                                                                            \
 114                 struct ptr_list *__head##ptr = (struct ptr_list *) (head);              \
 115                 struct ptr_list *__list##ptr = __head##ptr;                             \
 116                 int __nr##ptr = 0;                                                      \
 117                 if (__head##ptr) ptr = (__typeof__(ptr)) __head##ptr->list[0];          \
 118                 else ptr = NULL
 119
 120 #define NEXT_PTR_LIST(ptr)                                                      \
 121                 if (ptr) {                                                              \
 122                         if (++__nr##ptr < __list##ptr->nr) {                            \
 123                                 ptr = (__typeof__(ptr)) __list##ptr->list[__nr##ptr];   \
 124                         } else {                                                        \
 125                                 __list##ptr = __list##ptr->next;                        \
 126                                 ptr = NULL;                                             \
 127                                 if (__list##ptr != __head##ptr) {                       \
 128                                         __nr##ptr = 0;                                  \
 129                                         ptr = (__typeof__(ptr)) __list##ptr->list[0];   \
 130                                 }                                                       \
 131                         }                                                               \
 132                 }
 133
 134 #define RESET_PTR_LIST(ptr) do {                                                        \
 135                 __nr##ptr = 0;                                                          \
 136                 __list##ptr = __head##ptr;                                              \
 137                 if (__head##ptr) ptr = (__typeof__(ptr)) __head##ptr->list[0];          \
 138         } while (0)
 139
 140
 141 #define FINISH_PTR_LIST(ptr)                                                            \
 142                 (void)(__nr##ptr); /* Sanity-check nesting */                           \
 143         } while (0)
 144
 145 #define FOR_EACH_PTR(head, ptr) do {                                                    \
 146         struct ptr_list *__head = (struct ptr_list *) (head);                           \
 147         struct ptr_list *__list = __head;                                               \
 148         int __flag = ITERATE_FIRST;                                                     \
 149         if (__head) {                                                                   \
 150                 do { int __i;                                                           \
 151                         for (__i = 0; __i < __list->nr; __i++) {                        \
 152                                 if (__i == __list->nr-1 && __list->next == __head)      \
 153                                         __flag |= ITERATE_LAST;                         \
 154                                 do {                                                    \
 155                                         ptr = (__typeof__(ptr)) (__list->list[__i]);    \
 156                                         do {
 157
 158 #define END_FOR_EACH_PTR                } while (0);                                    \
 159                                 } while (0);                                            \
 160                                 __flag = 0;                                             \
 161                         }                                                               \
 162                 } while ((__list = __list->next) != __head);                            \
 163         }                                                                               \
 164 } while (0)
 165
 166 #define FOR_EACH_PTR_REVERSE(head, ptr) do {                                            \
 167         struct ptr_list *__head = (struct ptr_list *) (head);                           \
 168         struct ptr_list *__list = __head;                                               \
 169         int __flag = ITERATE_FIRST;                                                     \
 170         if (__head) {                                                                   \
 171                 do { int __i;                                                           \
 172                         __list = __list->prev;                                          \
 173                         __i = __list->nr;                                               \
 174                         while (--__i >= 0) {                                            \
 175                                 if (__i == 0 && __list == __head)                       \
 176                                         __flag |= ITERATE_LAST;                         \
 177                                 do {                                                    \
 178                                         ptr = (__typeof__(ptr)) (__list->list[__i]);    \
 179                                         do {
 180
 181 #define END_FOR_EACH_PTR_REVERSE        } while (0);                                    \
 182                                 } while (0);                                            \
 183                                 __flag = 0;                                             \
 184                         }                                                               \
 185                 } while (__list != __head);                                             \
 186         }                                                                               \
 187 } while (0)
 188
 189 #define THIS_ADDRESS(x) \
 190         ((__typeof__(&(x))) (__list->list + __i))
 191
 192 #endif