ref: e1bc6c3a19ded30fb1affa8dceaeec7d5c0a0951
dir: /src/cmd/as/as.h/
/* * First 3 bits of flags in segments and symbols are for the * type of segment */ enum symflags { FREG = 1 << 0, FSECT = 1 << 1, FSYM = 1 << 2, FCOMMON = 1 << 3, FEXTERN = 1 << 4, FDEF = 1 << 5, FGLOBAL = 1 << 6, FABS = 1 << 7, }; enum secflags { SREAD = 1 << 0, SWRITE = 1 << 1, SEXEC = 1 << 2, SLOAD = 1 << 3, SFILE = 1 << 4, SABS = 1 << 5, }; enum endianess { BIG_ENDIAN = -1, LITTLE_ENDIAN = 1 }; enum common_args { AIMM = 1, ASTR, AREG, ANUMBER, AIMM2, AIMM3, AIMM5, AIMM8, AIMM16, AIMM32, AIMM64, AINDIR, AINDEX, ADIRECT, AREG_OFF, ASYM, AOPT, AREP, AMAX, }; enum tokens { EOS = -1, IDEN = 1, NUMBER, REG, STRING, MINUS, SHL, SHR, GE, LE, }; #define MAXSYM 63 typedef struct reloc Reloc; typedef struct ins Ins; typedef struct op Op; typedef struct section Section; typedef struct symbol Symbol; typedef struct node Node; typedef struct string String; typedef void Format(Op *, Node **); struct string { char *buf; size_t offset; }; struct line { char *label; char *op; char *args; }; struct ins { int begin, end; char *str; }; struct reloc { size_t offset; Symbol *sym; unsigned char flags; unsigned char size; unsigned char nbits; unsigned char shift; }; struct op { unsigned char flags; unsigned char size; void (*format)(Op *, Node **); unsigned char *bytes; unsigned char *args; }; struct section { Symbol *sym; char *mem; unsigned char flags; unsigned char fill; unsigned char aligment; unsigned id; TUINT base; TUINT max; TUINT curpc; TUINT pc; struct section *next; }; struct symbol { String name; String type; unsigned char flags; unsigned char pass; TUINT value; TUINT size; Section *section; struct symbol *next; struct symbol *hash; }; struct node { unsigned char op; unsigned char addr; struct symbol *sym; struct node *left; struct node *right; }; union yylval { TUINT val; Symbol *sym; }; /* symbol.c */ extern void cleansecs(void); extern void isecs(void); extern void emit(char *bytes, int nbytes); extern Section *setsec(char *name, char *attr); extern Symbol *tmpsym(TUINT val); extern void killtmp(void); extern int toobig(Node *np, int type); extern void dumpstab(char *msg); extern String newstring(char *s); /* main.c */ extern Symbol *lookup(char *name); extern Symbol *deflabel(char *name); /* parser.c */ extern Node **getargs(char *s); extern void error(char *msg, ...); /* Avoid errors in files where stdio is not included */ #ifdef stdin extern int nextline(struct line *linep); #endif extern void unexpected(void); extern void expect(int token); int next(void); #define accept(t) (yytoken == (t) ? next() : 0) extern void regctx(int mode); extern Node *getreg(void); extern Node *operand(char **s); extern void addinput(char *fname); extern int delinput(void); /* expr.c */ extern Node *expr(void); extern void deltree(Node *np); extern Node *node(int op, Node *l, Node *r); /* proc.c */ extern void iarch(void); extern int match(Op *op, Node **args); extern Node *moperand(void); /* ins.c */ extern char *tobytes(TUINT v, int n, int inc); /* * Definition of global variables */ extern Section *cursec, *seclist; extern int nr_ins; extern Ins instab[]; extern Op optab[]; extern int pass; extern TUINT maxaddr; extern int endian; extern Symbol *linesym, *symlist; extern char *infile; extern int endpass; extern int yytoken; extern size_t yylen; extern union yylval yylval; extern char yytext[];