nasmlib.h
资源名称:nasm-0.98.zip [点击查看]
上传用户:yuppie_zhu
上传日期:2007-01-08
资源大小:535k
文件大小:8k
源码类别:
编译器/解释器
开发平台:
C/C++
- /* nasmlib.h header file for nasmlib.c
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
- #ifndef NASM_NASMLIB_H
- #define NASM_NASMLIB_H
- /*
- * If this is defined, the wrappers around malloc et al will
- * transform into logging variants, which will cause NASM to create
- * a file called `malloc.log' when run, and spew details of all its
- * memory management into that. That can then be analysed to detect
- * memory leaks and potentially other problems too.
- */
- /* #define LOGALLOC */
- /*
- * Wrappers around malloc, realloc and free. nasm_malloc will
- * fatal-error and die rather than return NULL; nasm_realloc will
- * do likewise, and will also guarantee to work right on being
- * passed a NULL pointer; nasm_free will do nothing if it is passed
- * a NULL pointer.
- */
- #ifdef NASM_NASM_H /* need efunc defined for this */
- void nasm_set_malloc_error (efunc);
- #ifndef LOGALLOC
- void *nasm_malloc (size_t);
- void *nasm_realloc (void *, size_t);
- void nasm_free (void *);
- char *nasm_strdup (char *);
- char *nasm_strndup (char *, size_t);
- #else
- void *nasm_malloc_log (char *, int, size_t);
- void *nasm_realloc_log (char *, int, void *, size_t);
- void nasm_free_log (char *, int, void *);
- char *nasm_strdup_log (char *, int, char *);
- char *nasm_strndup_log (char *, int, char *, size_t);
- #define nasm_malloc(x) nasm_malloc_log(__FILE__,__LINE__,x)
- #define nasm_realloc(x,y) nasm_realloc_log(__FILE__,__LINE__,x,y)
- #define nasm_free(x) nasm_free_log(__FILE__,__LINE__,x)
- #define nasm_strdup(x) nasm_strdup_log(__FILE__,__LINE__,x)
- #define nasm_strndup(x,y) nasm_strndup_log(__FILE__,__LINE__,x,y)
- #endif
- #endif
- /*
- * ANSI doesn't guarantee the presence of `stricmp' or
- * `strcasecmp'.
- */
- int nasm_stricmp (const char *, const char *);
- int nasm_strnicmp (const char *, const char *, int);
- /*
- * Convert a string into a number, using NASM number rules. Sets
- * `*error' to TRUE if an error occurs, and FALSE otherwise.
- */
- long readnum(char *str, int *error);
- /*
- * Convert a character constant into a number. Sets
- * `*warn' to TRUE if an overflow occurs, and FALSE otherwise.
- * str points to and length covers the middle of the string,
- * without the quotes.
- */
- long readstrnum(char *str, int length, int *warn);
- /*
- * seg_init: Initialise the segment-number allocator.
- * seg_alloc: allocate a hitherto unused segment number.
- */
- void seg_init(void);
- long seg_alloc(void);
- /*
- * many output formats will be able to make use of this: a standard
- * function to add an extension to the name of the input file
- */
- #ifdef NASM_NASM_H
- void standard_extension (char *inname, char *outname, char *extension,
- efunc error);
- #endif
- /*
- * some handy macros that will probably be of use in more than one
- * output format: convert integers into little-endian byte packed
- * format in memory
- */
- #define WRITELONG(p,v)
- do {
- *(p)++ = (v) & 0xFF;
- *(p)++ = ((v) >> 8) & 0xFF;
- *(p)++ = ((v) >> 16) & 0xFF;
- *(p)++ = ((v) >> 24) & 0xFF;
- } while (0)
- #define WRITESHORT(p,v)
- do {
- *(p)++ = (v) & 0xFF;
- *(p)++ = ((v) >> 8) & 0xFF;
- } while (0)
- /*
- * and routines to do the same thing to a file
- */
- void fwriteshort (int data, FILE *fp);
- void fwritelong (long data, FILE *fp);
- /*
- * Routines to manage a dynamic random access array of longs which
- * may grow in size to be more than the largest single malloc'able
- * chunk.
- */
- #define RAA_BLKSIZE 4096 /* this many longs allocated at once */
- #define RAA_LAYERSIZE 1024 /* this many _pointers_ allocated */
- typedef struct RAA RAA;
- typedef union RAA_UNION RAA_UNION;
- typedef struct RAA_LEAF RAA_LEAF;
- typedef struct RAA_BRANCH RAA_BRANCH;
- struct RAA {
- /*
- * Number of layers below this one to get to the real data. 0
- * means this structure is a leaf, holding RAA_BLKSIZE real
- * data items; 1 and above mean it's a branch, holding
- * RAA_LAYERSIZE pointers to the next level branch or leaf
- * structures.
- */
- int layers;
- /*
- * Number of real data items spanned by one position in the
- * `data' array at this level. This number is 1, trivially, for
- * a leaf (level 0): for a level 1 branch it should be
- * RAA_BLKSIZE, and for a level 2 branch it's
- * RAA_LAYERSIZE*RAA_BLKSIZE.
- */
- long stepsize;
- union RAA_UNION {
- struct RAA_LEAF {
- long data[RAA_BLKSIZE];
- } l;
- struct RAA_BRANCH {
- struct RAA *data[RAA_LAYERSIZE];
- } b;
- } u;
- };
- struct RAA *raa_init (void);
- void raa_free (struct RAA *);
- long raa_read (struct RAA *, long);
- struct RAA *raa_write (struct RAA *r, long posn, long value);
- /*
- * Routines to manage a dynamic sequential-access array, under the
- * same restriction on maximum mallocable block. This array may be
- * written to in two ways: a contiguous chunk can be reserved of a
- * given size, and a pointer returned, or single-byte data may be
- * written. The array can also be read back in the same two ways:
- * as a series of big byte-data blocks or as a list of structures
- * of a given size.
- */
- struct SAA {
- /*
- * members `end' and `elem_len' are only valid in first link in
- * list; `rptr' and `rpos' are used for reading
- */
- struct SAA *next, *end, *rptr;
- long elem_len, length, posn, start, rpos;
- char *data;
- };
- struct SAA *saa_init (long elem_len); /* 1 == byte */
- void saa_free (struct SAA *);
- void *saa_wstruct (struct SAA *); /* return a structure of elem_len */
- void saa_wbytes (struct SAA *, void *, long); /* write arbitrary bytes */
- void saa_rewind (struct SAA *); /* for reading from beginning */
- void *saa_rstruct (struct SAA *); /* return NULL on EOA */
- void *saa_rbytes (struct SAA *, long *); /* return 0 on EOA */
- void saa_rnbytes (struct SAA *, void *, long); /* read a given no. of bytes */
- void saa_fread (struct SAA *s, long posn, void *p, long len); /* fixup */
- void saa_fwrite (struct SAA *s, long posn, void *p, long len); /* fixup */
- void saa_fpwrite (struct SAA *, FILE *);
- #ifdef NASM_NASM_H
- /*
- * Standard scanner.
- */
- extern char *stdscan_bufptr;
- void stdscan_reset(void);
- int stdscan (void *private_data, struct tokenval *tv);
- #endif
- #ifdef NASM_NASM_H
- /*
- * Library routines to manipulate expression data types.
- */
- int is_reloc(expr *);
- int is_simple(expr *);
- int is_really_simple (expr *);
- int is_unknown(expr *);
- int is_just_unknown(expr *);
- long reloc_value(expr *);
- long reloc_seg(expr *);
- long reloc_wrt(expr *);
- #endif
- /*
- * Binary search routine. Returns index into `array' of an entry
- * matching `string', or <0 if no match. `array' is taken to
- * contain `size' elements.
- */
- int bsi (char *string, char **array, int size);
- char *src_set_fname(char *newname);
- long src_set_linnum(long newline);
- long src_get_linnum(void);
- /*
- * src_get may be used if you simply want to know the source file and line.
- * It is also used if you maintain private status about the source location
- * It return 0 if the information was the same as the last time you
- * checked, -1 if the name changed and (new-old) if just the line changed.
- */
- int src_get(long *xline, char **xname);
- void nasm_quote(char **str);
- char *nasm_strcat(char *one, char *two);
- void nasmlib_cleanup(void);
- void null_debug_routine();
- extern struct dfmt null_debug_form;
- extern struct dfmt *null_debug_arr[2];
- #endif