diff options
Diffstat (limited to 'gcc/cpphash.h')
| -rw-r--r-- | gcc/cpphash.h | 239 |
1 files changed, 57 insertions, 182 deletions
diff --git a/gcc/cpphash.h b/gcc/cpphash.h index 8787a6c..bba1ba9 100644 --- a/gcc/cpphash.h +++ b/gcc/cpphash.h @@ -22,68 +22,30 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef __GCC_CPPHASH__ #define __GCC_CPPHASH__ -typedef unsigned char U_CHAR; -#define U (const U_CHAR *) /* Intended use: U"string" */ - -/* Tokens with SPELL_STRING store their spelling in the token list, - and it's length in the token->val.name.len. */ -enum spell_type +/* Test if a sign is valid within a preprocessing number. */ +#define VALID_SIGN(c, prevc) \ + (((c) == '+' || (c) == '-') && \ + ((prevc) == 'e' || (prevc) == 'E' \ + || (((prevc) == 'p' || (prevc) == 'P') && !CPP_OPTION (pfile, c89)))) + +/* Memory pools. */ +#define ALIGN(size, align) (((size) + ((align) - 1)) & ~((align) - 1)) +#define POOL_FRONT(p) ((p)->cur->front) +#define POOL_LIMIT(p) ((p)->cur->limit) +#define POOL_BASE(p) ((p)->cur->base) +#define POOL_SIZE(p) ((p)->cur->limit - (p)->cur->base) +#define POOL_ROOM(p) ((p)->cur->limit - (p)->cur->front) +#define POOL_USED(p) ((p)->cur->front - (p)->cur->base) +#define POOL_COMMIT(p, len) do {((p)->cur->front += ALIGN (len, (p)->align));\ + if ((p)->cur->front > (p)->cur->limit) abort ();} while (0) + +typedef struct cpp_chunk cpp_chunk; +struct cpp_chunk { - SPELL_OPERATOR = 0, - SPELL_CHAR, - SPELL_IDENT, - SPELL_STRING, - SPELL_NONE -}; - -struct token_spelling -{ - enum spell_type category; - const U_CHAR *name; -}; - -extern const struct token_spelling _cpp_token_spellings[]; -#define TOKEN_SPELL(token) (_cpp_token_spellings[(token)->type].category) -#define TOKEN_NAME(token) (_cpp_token_spellings[(token)->type].name) - -/* Chained list of answers to an assertion. */ -struct answer -{ - struct answer *next; - cpp_toklist list; -}; -#define FREE_ANSWER(answer) do {_cpp_free_toklist (&answer->list); \ - free (answer); } while (0) - -/* Values for the origin field of struct directive. KANDR directives - come from traditional (K&R) C. STDC89 directives come from the - 1989 C standard. EXTENSION directives are extensions. */ -#define KANDR 0 -#define STDC89 1 -#define EXTENSION 2 - -/* Values for the flags field of struct directive. COND indicates a - conditional. EXPAND means that macros are to be expanded on the - directive line. INCL means to treat "..." and <...> as - q-char-sequence and h-char-sequence respectively. COMMENTS means - preserve comments in the directive if -C. IN_I means this directive - should be handled even if -fpreprocessed is in effect (these are the - directives with callback hooks). */ -#define COND (1 << 0) -#define EXPAND (1 << 1) -#define INCL (1 << 2) -#define COMMENTS (1 << 3) -#define IN_I (1 << 4) - -/* Defines one #-directive, including how to handle it. */ -typedef void (*directive_handler) PARAMS ((cpp_reader *)); -struct directive -{ - directive_handler handler; /* Function to handle directive. */ - const U_CHAR *name; /* Name of directive. */ - unsigned short length; /* Length of name. */ - unsigned char origin; /* Origin of directive. */ - unsigned char flags; /* Flags describing this directive. */ + cpp_chunk *next; + unsigned char *front; + unsigned char *limit; + unsigned char *base; }; /* List of directories to look for include files in. */ @@ -122,28 +84,18 @@ struct include_file unsigned short refcnt; /* number of stacked buffers using this file */ unsigned char sysp; /* file is a system header */ unsigned char mapped; /* file buffer is mmapped */ + unsigned char defined; /* cmacro prevents inclusion in this state */ }; /* The cmacro works like this: If it's NULL, the file is to be included again. If it's NEVER_REREAD, the file is never to be included again. Otherwise it is a macro hashnode, and the file is - to be included again if the macro is not defined. */ + to be included again if the macro is defined or not as specified by + DEFINED. */ #define NEVER_REREAD ((const cpp_hashnode *)-1) #define DO_NOT_REREAD(inc) \ -((inc)->cmacro && \ - ((inc)->cmacro == NEVER_REREAD || (inc)->cmacro->type != T_VOID)) - -/* Special nodes - identifiers with predefined significance. - Note that the array length of dirs[] must be kept in sync with - cpplib.c's dtable[]. */ -struct spec_nodes -{ - cpp_hashnode *n_L; /* L"str" */ - cpp_hashnode *n__STRICT_ANSI__; /* STDC_0_IN_SYSTEM_HEADERS */ - cpp_hashnode *n__CHAR_UNSIGNED__; /* plain char is unsigned */ - cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */ - cpp_hashnode *dirs[19]; /* 19 directives counting #sccs */ -}; +((inc)->cmacro && ((inc)->cmacro == NEVER_REREAD \ + || ((inc)->cmacro->type == NT_MACRO) == (inc)->defined)) /* Character classes. If the definition of `numchar' looks odd to you, please look up the @@ -200,27 +152,30 @@ extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; /* In cpperror.c */ enum error_type { WARNING = 0, PEDWARN, ERROR, FATAL, ICE }; extern int _cpp_begin_message PARAMS ((cpp_reader *, enum error_type, - const char *, unsigned int, - unsigned int)); + const char *, const cpp_lexer_pos *)); /* In cppmacro.c */ extern void _cpp_free_definition PARAMS ((cpp_hashnode *)); extern int _cpp_create_definition PARAMS ((cpp_reader *, cpp_hashnode *)); +extern void _cpp_pop_context PARAMS ((cpp_reader *)); +extern void _cpp_get_token PARAMS ((cpp_reader *, cpp_token *)); +extern void _cpp_free_lookaheads PARAMS ((cpp_reader *)); +extern void _cpp_push_token PARAMS ((cpp_reader *, const cpp_token *, + const cpp_lexer_pos *)); /* In cpphash.c */ -extern void _cpp_init_macros PARAMS ((cpp_reader *)); -extern void _cpp_cleanup_macros PARAMS ((cpp_reader *)); -extern cpp_hashnode *_cpp_lookup_with_hash PARAMS ((cpp_reader*, const U_CHAR *, - size_t, unsigned int)); +extern void _cpp_init_hashtable PARAMS ((cpp_reader *)); +extern void _cpp_cleanup_hashtable PARAMS ((cpp_reader *)); +extern cpp_hashnode *_cpp_lookup_with_hash PARAMS ((cpp_reader*, size_t, + unsigned int)); /* In cppfiles.c */ extern void _cpp_simplify_pathname PARAMS ((char *)); -extern void _cpp_execute_include PARAMS ((cpp_reader *, const U_CHAR *, - unsigned int, int, - struct file_name_list *, - int)); -extern int _cpp_compare_file_date PARAMS ((cpp_reader *, const U_CHAR *, - unsigned int, int)); +extern void _cpp_execute_include PARAMS ((cpp_reader *, + const cpp_token *, int, + struct file_name_list *)); +extern int _cpp_compare_file_date PARAMS ((cpp_reader *, + const cpp_token *)); extern void _cpp_report_missing_guards PARAMS ((cpp_reader *)); extern void _cpp_init_includes PARAMS ((cpp_reader *)); extern void _cpp_cleanup_includes PARAMS ((cpp_reader *)); @@ -231,113 +186,33 @@ extern void _cpp_pop_file_buffer PARAMS ((cpp_reader *, cpp_buffer *)); extern int _cpp_parse_expr PARAMS ((cpp_reader *)); /* In cpplex.c */ -extern const unsigned char *_cpp_digraph_spellings[]; -extern void _cpp_skip_rest_of_line PARAMS ((cpp_reader *)); -extern void _cpp_free_temp_tokens PARAMS ((cpp_reader *)); -extern void _cpp_init_input_buffer PARAMS ((cpp_reader *)); -extern void _cpp_grow_token_buffer PARAMS ((cpp_reader *, long)); -extern void _cpp_init_toklist PARAMS ((cpp_toklist *, int)); -extern void _cpp_clear_toklist PARAMS ((cpp_toklist *)); -extern void _cpp_free_toklist PARAMS ((const cpp_toklist *)); +extern void _cpp_lex_token PARAMS ((cpp_reader *, cpp_token *)); extern int _cpp_equiv_tokens PARAMS ((const cpp_token *, const cpp_token *)); -extern int _cpp_equiv_toklists PARAMS ((const cpp_toklist *, - const cpp_toklist *)); -extern void _cpp_expand_token_space PARAMS ((cpp_toklist *, unsigned int)); -extern void _cpp_reserve_name_space PARAMS ((cpp_toklist *, unsigned int)); -extern void _cpp_expand_name_space PARAMS ((cpp_toklist *, unsigned int)); -extern int _cpp_equiv_tokens PARAMS ((const cpp_token *, - const cpp_token *)); -extern void _cpp_process_directive PARAMS ((cpp_reader *, const cpp_token *)); -extern void _cpp_run_directive PARAMS ((cpp_reader *, - const struct directive *, - const char *, size_t, - const char *)); -extern unsigned int _cpp_get_line PARAMS ((cpp_reader *, - unsigned int *)); -extern const cpp_token *_cpp_get_token PARAMS ((cpp_reader *)); -extern const cpp_token *_cpp_get_raw_token PARAMS ((cpp_reader *)); -extern void _cpp_push_token PARAMS ((cpp_reader *, const cpp_token*)); -extern const cpp_token *_cpp_glue_header_name PARAMS ((cpp_reader *)); -extern enum cpp_ttype _cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *, - const cpp_token *, int *)); +extern void _cpp_init_pool PARAMS ((cpp_pool *, unsigned int, + unsigned int, unsigned int)); +extern void _cpp_free_pool PARAMS ((cpp_pool *)); +extern unsigned char *_cpp_pool_reserve PARAMS ((cpp_pool *, unsigned int)); +extern unsigned char *_cpp_pool_alloc PARAMS ((cpp_pool *, unsigned int)); +extern unsigned char *_cpp_next_chunk PARAMS ((cpp_pool *, unsigned int, + unsigned char **)); +extern void _cpp_lock_pool PARAMS ((cpp_pool *)); +extern void _cpp_unlock_pool PARAMS ((cpp_pool *)); /* In cpplib.c */ -extern const struct directive *_cpp_check_directive - PARAMS ((cpp_reader *, const cpp_token *)); -extern const struct directive *_cpp_check_linemarker - PARAMS ((cpp_reader *, const cpp_token *)); -extern cpp_hashnode *_cpp_parse_assertion PARAMS ((cpp_reader *, - struct answer **)); -extern struct answer **_cpp_find_answer PARAMS ((cpp_hashnode *, - const cpp_toklist *)); -extern void _cpp_define_builtin PARAMS ((cpp_reader *, const char *)); - +extern int _cpp_test_assertion PARAMS ((cpp_reader *, int *)); +extern int _cpp_handle_directive PARAMS ((cpp_reader *, int)); +extern void _cpp_define_builtin PARAMS ((cpp_reader *, const char *)); extern void _cpp_init_stacks PARAMS ((cpp_reader *)); extern void _cpp_cleanup_stacks PARAMS ((cpp_reader *)); extern void _cpp_init_internal_pragmas PARAMS ((cpp_reader *)); /* Utility routines and macros. */ +#define DSC(str) (const U_CHAR *)str, sizeof str - 1 #define xnew(T) (T *) xmalloc (sizeof(T)) #define xcnew(T) (T *) xcalloc (1, sizeof(T)) #define xnewvec(T, N) (T *) xmalloc (sizeof(T) * (N)) #define xcnewvec(T, N) (T *) xcalloc (N, sizeof(T)) #define xobnew(O, T) (T *) obstack_alloc (O, sizeof(T)) -/* These are inline functions instead of macros so we can get type - checking. */ - -static inline int ustrcmp PARAMS ((const U_CHAR *, const U_CHAR *)); -static inline int ustrncmp PARAMS ((const U_CHAR *, const U_CHAR *, - size_t)); -static inline size_t ustrlen PARAMS ((const U_CHAR *)); -static inline U_CHAR *uxstrdup PARAMS ((const U_CHAR *)); -static inline U_CHAR *ustrchr PARAMS ((const U_CHAR *, int)); -static inline int ufputs PARAMS ((const U_CHAR *, FILE *)); - -static inline int -ustrcmp (s1, s2) - const U_CHAR *s1, *s2; -{ - return strcmp ((const char *)s1, (const char *)s2); -} - -static inline int -ustrncmp (s1, s2, n) - const U_CHAR *s1, *s2; - size_t n; -{ - return strncmp ((const char *)s1, (const char *)s2, n); -} - -static inline size_t -ustrlen (s1) - const U_CHAR *s1; -{ - return strlen ((const char *)s1); -} - -static inline U_CHAR * -uxstrdup (s1) - const U_CHAR *s1; -{ - return (U_CHAR *) xstrdup ((const char *)s1); -} - -static inline U_CHAR * -ustrchr (s1, c) - const U_CHAR *s1; - int c; -{ - return (U_CHAR *) strchr ((const char *)s1, c); -} - -static inline int -ufputs (s, f) - const U_CHAR *s; - FILE *f; -{ - return fputs ((const char *)s, f); -} - #endif |