132 lines
5.9 KiB
C
132 lines
5.9 KiB
C
/*-----------------------------------------------------------------*/
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/* SDCCmem.h - header file for memory management */
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/*-----------------------------------------------------------------*/
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#ifndef SDCCMEM_H
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#define SDCCMEM_H
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#include <stdbool.h>
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#include <stdio.h>
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#include "dbuf.h"
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#include "SDCCsymt.h"
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struct set;
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struct value;
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struct eBBlock;
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typedef struct memmap
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{
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unsigned char pageno; /* page no for this variable */
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const char *sname; /* character prefix for map */
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char dbName; /* debugger address space name */
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int ptrType; /* pointer Type for this space */
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int slbl; /* label counter for space */
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unsigned sloc; /* starting location */
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unsigned fmap:1; /* 1 = 16bit addressing reqd */
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unsigned paged:1; /* this is a paged mem space */
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unsigned direct:1; /* 1 = indirect access only */
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unsigned bitsp:1; /* 1 = bit addressable space */
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unsigned codesp:1; /* 1 = code space */
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unsigned regsp:1; /* 1 = sfr space */
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struct dbuf_s oBuf; /* object buffer associated */
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struct set *syms; /* symbols defined in this segment */
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}
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memmap;
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/* For performance we might want to use a hash map instead of the linked list */
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typedef struct namedspacemap
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{
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char *name;
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bool is_const;
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memmap *map;
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struct namedspacemap *next;
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}
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namedspacemap;
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extern FILE *junkFile;
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/* memory map prefixes MOF added the DATA,CODE,XDATA,BIT */
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#define XSTACK_NAME port->mem.xstack_name
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#define ISTACK_NAME port->mem.istack_name
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#define CODE_NAME (options.gasOutput ? ".text" : port->mem.code_name)
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#define DATA_NAME (options.gasOutput ? ".bss" : port->mem.data_name)
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#define INITIALIZED_NAME (options.gasOutput ? port->mem.data_name : port->mem.initialized_name)
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#define INITIALIZER_NAME (options.gasOutput ? ".data" : port->mem.initializer_name)
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#define IDATA_NAME port->mem.idata_name
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#define PDATA_NAME port->mem.pdata_name
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#define XDATA_NAME port->mem.xdata_name
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#define XIDATA_NAME port->mem.xidata_name
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#define XINIT_NAME port->mem.xinit_name
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#define BIT_NAME port->mem.bit_name
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#define REG_NAME port->mem.reg_name
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#define STATIC_NAME port->mem.static_name
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#define HOME_NAME (options.gasOutput ? ".vectors" : port->mem.home_name)
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#define OVERLAY_NAME port->mem.overlay_name
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#define CONST_NAME (options.gasOutput ? ".text.rodata" : port->mem.const_name)
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#define CABS_NAME port->mem.cabs_name
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#define XABS_NAME port->mem.xabs_name
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#define IABS_NAME port->mem.iabs_name
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/* forward definition for variables */
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extern memmap *xstack; /* xternal stack data */
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extern memmap *istack; /* internal stack */
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extern memmap *code; /* code segment */
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extern memmap *data; /* internal data upto 128 */
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extern memmap *initialized; /* initialized data, such as initalized, nonzero globals or local statics. */
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extern memmap *initializer; /* a copy of the values for the initalized data from initialized in code space */
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extern memmap *pdata; /* paged external data upto 256 */
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extern memmap *xdata; /* external data */
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extern memmap *xidata; /* the initialized xdata */
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extern memmap *xinit; /* the initializers for xidata */
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extern memmap *idata; /* internal data upto 256 */
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extern memmap *bit; /* bit addressable space */
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extern memmap *statsg; /* static code segment */
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extern memmap *c_abs; /* constant absolute data */
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extern memmap *x_abs; /* absolute xdata/pdata */
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extern memmap *i_abs; /* absolute idata upto 256 */
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extern memmap *d_abs; /* absolute data upto 128 */
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extern memmap *sfr; /* register space */
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extern memmap *sfrbit; /* sfr bit space */
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extern memmap *reg; /* register space */
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extern memmap *generic; /* unknown */
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extern memmap *overlay; /* the overlay segment */
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extern memmap *eeprom; /* eeprom space */
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extern memmap *home; /* Non-banked home space */
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extern namedspacemap *namedspacemaps;
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extern int fatalError;
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extern struct set *ovrSetSets;
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/* easy access macros */
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#define IN_BITSPACE(map) (map && map->bitsp)
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#define IN_STACK(x) (IS_SPEC(x) && (SPEC_OCLS(x) == xstack || SPEC_OCLS(x) == istack ))
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#define IN_FARSPACE(map) (map && map->fmap)
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#define IN_DIRSPACE(map) (map && map->direct)
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#define IN_PAGEDSPACE(map) (map && map->paged )
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#define IN_CODESPACE(map) (map && map->codesp)
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#define IN_REGSP(map) (map && map->regsp)
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#define PTR_TYPE(map) (map ? (map->ptrType ? map->ptrType : POINTER)\
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: port->unqualified_pointer)
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/* forward decls for functions */
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memmap *allocMap (char, char, char, char, char, char, unsigned, const char *, char, int);
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void initMem ();
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bool defaultOClass (struct symbol *);
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void allocGlobal (struct symbol *);
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void allocLocal (struct symbol *);
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void allocParms (struct value *, bool smallc);
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void deallocParms (struct value *);
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void deallocLocal (struct symbol *);
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int allocVariables (struct symbol *);
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void overlay2Set ();
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void overlay2data ();
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void clearStackOffsets (void);
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void redoStackOffsets (void);
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void printAllocInfo (struct symbol *, struct dbuf_s *);
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void doOverlays (struct eBBlock **, int count);
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void deleteFromSeg(struct symbol *);
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#endif
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