ref: d9d2925fa024c2eceeea18c9b3afda30af96301e
dir: /sys/src/cmd/cc/acid.c/
#include "cc.h" static char *kwd[] = { "$adt", "$aggr", "$append", "$builtin", "$complex", "$defn", "$delete", "$do", "$else", "$eval", "$head", "$if", "$local", "$loop", "$return", "$tail", "$then", "$union", "$whatis", "$while", }; char* amap(char *s) { int i, bot, top, new; bot = 0; top = bot + nelem(kwd) - 1; while(bot <= top){ new = bot + (top - bot)/2; i = strcmp(kwd[new]+1, s); if(i == 0) return kwd[new]; if(i < 0) bot = new + 1; else top = new - 1; } return s; } Sym* acidsue(Type *t) { int h; Sym *s; if(t != T) for(h=0; h<nelem(hash); h++) for(s = hash[h]; s != S; s = s->link) if(s->suetag && s->suetag->link == t) return s; return 0; } Sym* acidfun(Type *t) { int h; Sym *s; for(h=0; h<nelem(hash); h++) for(s = hash[h]; s != S; s = s->link) if(s->type == t) return s; return 0; } char acidchar[NTYPE]; Init acidcinit[] = { TCHAR, 'C', 0, TUCHAR, 'b', 0, TSHORT, 'd', 0, TUSHORT, 'u', 0, TLONG, 'D', 0, TULONG, 'U', 0, TVLONG, 'V', 0, TUVLONG, 'W', 0, TFLOAT, 'f', 0, TDOUBLE, 'F', 0, TARRAY, 'a', 0, TIND, 'X', 0, -1, 0, 0, }; static void acidinit(void) { Init *p; for(p=acidcinit; p->code >= 0; p++) acidchar[p->code] = p->value; acidchar[TINT] = acidchar[TLONG]; acidchar[TUINT] = acidchar[TULONG]; if(types[TINT]->width != types[TLONG]->width) { acidchar[TINT] = acidchar[TSHORT]; acidchar[TUINT] = acidchar[TUSHORT]; if(types[TINT]->width != types[TSHORT]->width) warn(Z, "acidmember int not long or short"); } if(types[TIND]->width == types[TUVLONG]->width) acidchar[TIND] = 'Y'; } void acidmember(Type *t, long off, int flag) { Sym *s, *s1; Type *l; static int acidcharinit = 0; if(acidcharinit == 0) { acidinit(); acidcharinit = 1; } s = t->sym; switch(t->etype) { default: Bprint(&outbuf, " T%d\n", t->etype); break; case TIND: if(s == S) break; if(flag) { for(l=t; l->etype==TIND; l=l->link) ; if(typesu[l->etype]) { s1 = acidsue(l->link); if(s1 != S) { Bprint(&outbuf, " 'A' %s %ld %s;\n", amap(s1->name), t->offset+off, amap(s->name)); break; } } } else { Bprint(&outbuf, "\tprint(\"\t%s\t\", addr.%s\\%c, \"\\n\");\n", amap(s->name), amap(s->name), acidchar[TIND]); break; } case TINT: case TUINT: case TCHAR: case TUCHAR: case TSHORT: case TUSHORT: case TLONG: case TULONG: case TVLONG: case TUVLONG: case TFLOAT: case TDOUBLE: case TARRAY: if(s == S) break; if(flag) { Bprint(&outbuf, " '%c' %ld %s;\n", acidchar[t->etype], t->offset+off, amap(s->name)); } else { Bprint(&outbuf, "\tprint(\"\t%s\t\", addr.%s, \"\\n\");\n", amap(s->name), amap(s->name)); } break; case TSTRUCT: case TUNION: s1 = acidsue(t->link); if(s1 == S) break; if(flag) { if(s == S) { Bprint(&outbuf, " {\n"); for(l = t->link; l != T; l = l->down) acidmember(l, t->offset+off, flag); Bprint(&outbuf, " };\n"); } else { Bprint(&outbuf, " %s %ld %s;\n", amap(s1->name), t->offset+off, amap(s->name)); } } else { if(s != S) { Bprint(&outbuf, "\tprint(\"%s %s {\\n\");\n", amap(s1->name), amap(s->name)); Bprint(&outbuf, "\t%s(addr.%s);\n", amap(s1->name), amap(s->name)); Bprint(&outbuf, "\tprint(\"}\\n\");\n"); } else { Bprint(&outbuf, "\tprint(\"%s {\\n\");\n", amap(s1->name)); Bprint(&outbuf, "\t\t%s(addr+%ld);\n", amap(s1->name), t->offset+off); Bprint(&outbuf, "\tprint(\"}\\n\");\n"); } } break; } } void acidtype(Type *t) { Sym *s; Type *l; Io *i; int n; char *an; if(!debug['a']) return; if(debug['a'] > 1) { n = 0; for(i=iostack; i; i=i->link) n++; if(n > 1) return; } s = acidsue(t->link); if(s == S) return; switch(t->etype) { default: Bprint(&outbuf, "T%d\n", t->etype); return; case TUNION: case TSTRUCT: if(debug['s']) goto asmstr; an = amap(s->name); Bprint(&outbuf, "sizeof%s = %ld;\n", an, t->width); Bprint(&outbuf, "aggr %s\n{\n", an); for(l = t->link; l != T; l = l->down) acidmember(l, 0, 1); Bprint(&outbuf, "};\n\n"); Bprint(&outbuf, "defn\n%s(addr) {\n\tcomplex %s addr;\n", an, an); for(l = t->link; l != T; l = l->down) acidmember(l, 0, 0); Bprint(&outbuf, "};\n\n"); break; asmstr: if(s == S) break; for(l = t->link; l != T; l = l->down) if(l->sym != S) Bprint(&outbuf, "#define\t%s.%s\t%ld\n", s->name, l->sym->name, l->offset); break; } } void acidvar(Sym *s) { int n; Io *i; Type *t; Sym *s1, *s2; if(!debug['a'] || debug['s']) return; if(debug['a'] > 1) { n = 0; for(i=iostack; i; i=i->link) n++; if(n > 1) return; } t = s->type; while(t && t->etype == TIND) t = t->link; if(t == T) return; if(t->etype == TENUM) { Bprint(&outbuf, "%s = ", amap(s->name)); if(!typefd[t->etype]) Bprint(&outbuf, "%lld;\n", s->vconst); else Bprint(&outbuf, "%f\n;", s->fconst); return; } if(!typesu[t->etype]) return; s1 = acidsue(t->link); if(s1 == S) return; switch(s->class) { case CAUTO: case CPARAM: s2 = acidfun(thisfn); if(s2) Bprint(&outbuf, "complex %s %s:%s;\n", amap(s1->name), amap(s2->name), amap(s->name)); break; case CSTATIC: case CEXTERN: case CGLOBL: case CLOCAL: Bprint(&outbuf, "complex %s %s;\n", amap(s1->name), amap(s->name)); break; } }