146 lines
3.1 KiB
C
146 lines
3.1 KiB
C
/* atom.h - atomic objects from source */
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/* (c) in 2010-2019 by Volker Barthelmann and Frank Wille */
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#ifndef ATOM_H
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#define ATOM_H
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/* types of atoms */
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#define LABEL 1
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#define DATA 2
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#define INSTRUCTION 3
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#define SPACE 4
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#define DATADEF 5
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#define LINE 6
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#define OPTS 7
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#define PRINTTEXT 8
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#define PRINTEXPR 9
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#define ROFFS 10
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#define RORG 11
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#define RORGEND 12
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#define ASSERT 13
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#define NLIST 14
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/* a machine instruction */
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typedef struct instruction {
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int code;
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#if MAX_QUALIFIERS!=0
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char *qualifiers[MAX_QUALIFIERS];
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#endif
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#if MAX_OPERANDS!=0
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operand *op[MAX_OPERANDS];
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#endif
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#if HAVE_INSTRUCTION_EXTENSION
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instruction_ext ext;
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#endif
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} instruction;
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typedef struct defblock {
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size_t bitsize;
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operand *op;
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} defblock;
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struct dblock {
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size_t size;
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unsigned char *data;
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rlist *relocs;
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};
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struct sblock {
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size_t space;
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expr *space_exp; /* copied to space, when evaluated as constant */
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size_t size;
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uint8_t fill[MAXPADBYTES];
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expr *fill_exp; /* copied to fill, when evaluated - may be NULL */
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rlist *relocs;
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taddr maxalignbytes;
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uint32_t flags;
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};
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#define SPC_DATABSS 1 /* make sure no to allocate space in a data section */
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typedef struct printexpr {
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expr *print_exp;
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short type; /* hex, signed, unsigned */
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short size; /* precision in bits */
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} printexpr;
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#define PEXP_HEX 0
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#define PEXP_SDEC 1
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#define PEXP_UDEC 2
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#define PEXP_BIN 3
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#define PEXP_ASC 4
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typedef struct assertion {
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expr *assert_exp;
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char *expstr;
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char *msgstr;
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} assertion;
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typedef struct aoutnlist {
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char *name;
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int type;
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int other;
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int desc;
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expr *value;
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} aoutnlist;
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/* an atomic element of data */
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typedef struct atom {
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struct atom *next;
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int type;
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taddr align;
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size_t lastsize;
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unsigned changes;
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source *src;
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int line;
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listing *list;
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union {
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instruction *inst;
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dblock *db;
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symbol *label;
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sblock *sb;
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defblock *defb;
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void *opts;
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int srcline;
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char *ptext;
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printexpr *pexpr;
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expr *roffs;
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taddr *rorg;
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assertion *assert;
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aoutnlist *nlist;
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} content;
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} atom;
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#define MAXSIZECHANGES 5 /* warning, when atom changed size so many times */
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instruction *new_inst(char *inst,int len,int op_cnt,char **op,int *op_len);
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dblock *new_dblock();
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sblock *new_sblock(expr *,size_t,expr *);
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void add_atom(section *,atom *);
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size_t atom_size(atom *,section *,taddr);
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void print_atom(FILE *,atom *);
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void atom_printexpr(printexpr *,section *,taddr);
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atom *clone_atom(atom *);
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atom *add_data_atom(section *,size_t,taddr,taddr);
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void add_leb128_atom(section *,taddr);
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void add_sleb128_atom(section *,taddr);
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atom *add_bytes_atom(section *,void *,size_t);
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#define add_string_atom(s,p) add_bytes_atom(s,p,strlen(p)+1)
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atom *new_inst_atom(instruction *);
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atom *new_data_atom(dblock *,taddr);
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atom *new_label_atom(symbol *);
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atom *new_space_atom(expr *,size_t,expr *);
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atom *new_datadef_atom(size_t,operand *);
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atom *new_srcline_atom(int);
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atom *new_opts_atom(void *);
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atom *new_text_atom(char *);
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atom *new_expr_atom(expr *,int,int);
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atom *new_roffs_atom(expr *);
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atom *new_rorg_atom(taddr);
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atom *new_rorgend_atom(void);
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atom *new_assert_atom(expr *,char *,char *);
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atom *new_nlist_atom(char *,int,int,int,expr *);
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#endif
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