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 struct basic_block;
  32 struct entrypoint;
  33
  34 struct token *skip_to(struct token *, int);
  35 struct token *expect(struct token *, int, const char *);
  36 extern void warn(struct position, const char *, ...);
  37 extern void error(struct position, const char *, ...);
  38
  39 #define __DECLARE_ALLOCATOR(type, x)            \
  40         extern type *__alloc_##x(int);          \
  41         extern void show_##x##_alloc(void);     \
  42         extern void clear_##x##_alloc(void);
  43 #define DECLARE_ALLOCATOR(x) __DECLARE_ALLOCATOR(struct x, x)
  44
  45 DECLARE_ALLOCATOR(ident);
  46 DECLARE_ALLOCATOR(token);
  47 DECLARE_ALLOCATOR(symbol);
  48 DECLARE_ALLOCATOR(expression);
  49 DECLARE_ALLOCATOR(statement);
  50 DECLARE_ALLOCATOR(string);
  51 DECLARE_ALLOCATOR(scope);
  52 __DECLARE_ALLOCATOR(void, bytes);
  53 DECLARE_ALLOCATOR(basic_block);
  54 DECLARE_ALLOCATOR(entrypoint);
  55
  56
  57 #define LIST_NODE_NR (29)
  58
  59 struct ptr_list {
  60         int nr;
  61         struct ptr_list *prev;
  62         struct ptr_list *next;
  63         void *list[LIST_NODE_NR];
  64 };
  65
  66 #define ITERATE_FIRST 1
  67 #define ITERATE_LAST 2
  68 void iterate(struct ptr_list *,void (*callback)(void *, void *, int), void*);
  69 extern void add_ptr_list(struct ptr_list **, void *);
  70 extern void copy_ptr_list(struct ptr_list *a, struct ptr_list **b);
  71 extern void free_ptr_list(struct ptr_list **);
  72 extern int ptr_list_size(struct ptr_list *);
  73 extern char **handle_switch(char *arg, char **next);
  74 extern void add_pre_buffer(const char *fmt, ...);
  75
  76 extern unsigned int pre_buffer_size;
  77 extern unsigned char pre_buffer[8192];
  78 extern int include_fd;
  79 extern char *include;
  80 extern int preprocess_only;
  81
  82 extern void create_builtin_stream(void);
  83
  84 #define symbol_list_size(list) ptr_list_size((struct ptr_list *)(list))
  85 #define statement_list_size(list) ptr_list_size((struct ptr_list *)(list))
  86 #define expression_list_size(list) ptr_list_size((struct ptr_list *)(list))
  87
  88 static inline void copy_symbol_list(struct symbol_list *from, struct symbol_list **to)
  89 {
  90         copy_ptr_list((struct ptr_list *)from, (struct ptr_list **)to);
  91 }
  92
  93 static inline void add_symbol(struct symbol_list **list, struct symbol *sym)
  94 {
  95         add_ptr_list((struct ptr_list **)list, sym);
  96 }
  97
  98 static inline void add_statement(struct statement_list **list, struct statement *stmt)
  99 {
 100         add_ptr_list((struct ptr_list **)list, stmt);
 101 }
 102
 103 static inline void add_expression(struct expression_list **list, struct expression *expr)
 104 {
 105         add_ptr_list((struct ptr_list **)list, expr);
 106 }
 107
 108 static inline void symbol_iterate(struct symbol_list *list, void (*callback)(struct symbol *, void *, int), void *data)
 109 {
 110         iterate((struct ptr_list *)list, (void (*)(void *, void *, int))callback, data);
 111 }
 112
 113 static inline void statement_iterate(struct statement_list *list, void (*callback)(struct statement *, void *, int), void *data)
 114 {
 115         iterate((struct ptr_list *)list, (void (*)(void *, void *, int))callback, data);
 116 }
 117
 118 static inline void expression_iterate(struct expression_list *list, void (*callback)(struct expression *, void *, int), void *data)
 119 {
 120         iterate((struct ptr_list *)list, (void (*)(void *, void *, int))callback, data);
 121 }
 122
 123 #define PREPARE_PTR_LIST(head, ptr)                                                     \
 124         do {                                                                            \
 125                 struct ptr_list *__head##ptr = (struct ptr_list *) (head);              \
 126                 struct ptr_list *__list##ptr = __head##ptr;                             \
 127                 int __nr##ptr = 0;                                                      \
 128                 if (__head##ptr) ptr = (__typeof__(ptr)) __head##ptr->list[0];          \
 129                 else ptr = NULL
 130
 131 #define NEXT_PTR_LIST(ptr)                                                      \
 132                 if (ptr) {                                                              \
 133                         if (++__nr##ptr < __list##ptr->nr) {                            \
 134                                 ptr = (__typeof__(ptr)) __list##ptr->list[__nr##ptr];   \
 135                         } else {                                                        \
 136                                 __list##ptr = __list##ptr->next;                        \
 137                                 ptr = NULL;                                             \
 138                                 if (__list##ptr != __head##ptr) {                       \
 139                                         __nr##ptr = 0;                                  \
 140                                         ptr = (__typeof__(ptr)) __list##ptr->list[0];   \
 141                                 }                                                       \
 142                         }                                                               \
 143                 }
 144
 145 #define RESET_PTR_LIST(ptr) do {                                                        \
 146                 __nr##ptr = 0;                                                          \
 147                 __list##ptr = __head##ptr;                                              \
 148                 if (__head##ptr) ptr = (__typeof__(ptr)) __head##ptr->list[0];          \
 149         } while (0)
 150
 151
 152 #define FINISH_PTR_LIST(ptr)                                                            \
 153                 (void)(__nr##ptr); /* Sanity-check nesting */                           \
 154         } while (0)
 155
 156 #define FOR_EACH_PTR(head, ptr) do {                                                    \
 157         struct ptr_list *__head = (struct ptr_list *) (head);                           \
 158         struct ptr_list *__list = __head;                                               \
 159         int __flag = ITERATE_FIRST;                                                     \
 160         if (__head) {                                                                   \
 161                 do { int __i;                                                           \
 162                         for (__i = 0; __i < __list->nr; __i++) {                        \
 163                                 if (__i == __list->nr-1 && __list->next == __head)      \
 164                                         __flag |= ITERATE_LAST;                         \
 165                                 do {                                                    \
 166                                         ptr = (__typeof__(ptr)) (__list->list[__i]);    \
 167                                         do {
 168
 169 #define END_FOR_EACH_PTR                } while (0);                                    \
 170                                 } while (0);                                            \
 171                                 __flag = 0;                                             \
 172                         }                                                               \
 173                 } while ((__list = __list->next) != __head);                            \
 174         }                                                                               \
 175 } while (0)
 176
 177 #define FOR_EACH_PTR_REVERSE(head, ptr) do {                                            \
 178         struct ptr_list *__head = (struct ptr_list *) (head);                           \
 179         struct ptr_list *__list = __head;                                               \
 180         int __flag = ITERATE_FIRST;                                                     \
 181         if (__head) {                                                                   \
 182                 do { int __i;                                                           \
 183                         __list = __list->prev;                                          \
 184                         __i = __list->nr;                                               \
 185                         while (--__i >= 0) {                                            \
 186                                 if (__i == 0 && __list == __head)                       \
 187                                         __flag |= ITERATE_LAST;                         \
 188                                 do {                                                    \
 189                                         ptr = (__typeof__(ptr)) (__list->list[__i]);    \
 190                                         do {
 191
 192 #define END_FOR_EACH_PTR_REVERSE        } while (0);                                    \
 193                                 } while (0);                                            \
 194                                 __flag = 0;                                             \
 195                         }                                                               \
 196                 } while (__list != __head);                                             \
 197         }                                                                               \
 198 } while (0)
 199
 200 #define THIS_ADDRESS(x) \
 201         ((__typeof__(&(x))) (__list->list + __i))
 202
 203 #endif