%{ extern char *word; extern char writecode; extern int number; extern int unit; char nice_name[1000]; char *it; int sofar; int width; int code; char * repeat; char *oldrepeat; char *name; int rdepth; char *loop [] = {"","n","m","/*BAD*/"}; char *names[] = {" ","[n]","[n][m]"}; char *pnames[]= {"","*","**"}; %} %union { int i; char *s; } %token COND %token REPEAT %token '(' ')' '[' ']' %token <s> TYPE %token <s> NAME %token <i> NUMBER UNIT %type <i> attr_size %type <s> attr_desc attr_id attr_type %% top: { switch (writecode) { case 'i': printf("#ifdef SYSROFF_SWAP_IN\n"); break; case 'p': printf("#ifdef SYSROFF_p\n"); break; case 'd': break; case 'g': printf("#ifdef SYSROFF_SWAP_OUT\n"); break; case 'c': printf("#ifdef SYSROFF_PRINT\n"); printf("#include <stdio.h>\n"); printf("#include <stdlib.h>\n"); break; } } it_list { switch (writecode) { case 'i': case 'p': case 'g': case 'c': printf("#endif\n"); break; case 'd': break; } } ; it_list: it it_list | ; it: '(' NAME NUMBER { it = $2; code = $3; switch (writecode) { case 'd': printf("\n\n\n#define IT_%s_CODE 0x%x\n", it,code); printf("struct IT_%s { \n", it); break; case 'i': printf("void sysroff_swap_%s_in(ptr)\n",$2); printf("struct IT_%s *ptr;\n", it); printf("{\n"); printf("char raw[255];\n"); printf("\tint idx = 0 ;\n"); printf("\tint size;\n"); printf("memset(raw,0,255);\n"); printf("memset(ptr,0,sizeof(*ptr));\n"); printf("size = fillup(raw);\n"); break; case 'g': printf("void sysroff_swap_%s_out(file,ptr,last)\n",$2); printf("FILE * file;\n"); printf("struct IT_%s *ptr;\n", it); printf("int last;\n"); printf("{\n"); printf("\tchar raw[255];\n"); printf("\tint idx = 16 ;\n"); printf("\tmemset (raw, 0, 255);\n"); printf("\tcode = IT_%s_CODE;\n", it); break; case 'o': printf("void sysroff_swap_%s_out(abfd,ptr)\n",$2); printf("bfd * abfd;\n"); printf("struct IT_%s *ptr;\n",it); printf("{\n"); printf("int idx = 0 ;\n"); break; case 'c': printf("void sysroff_print_%s_out(ptr)\n",$2); printf("struct IT_%s *ptr;\n", it); printf("{\n"); printf("itheader(\"%s\", IT_%s_CODE);\n",$2,$2); break; case 't': break; } } it_field_list ')' { switch (writecode) { case 'd': printf("};\n"); break; case 'g': printf("\tchecksum(file,raw, idx, IT_%s_CODE, last);\n", it); case 'i': case 'o': case 'c': printf("}\n"); } } ; it_field_list: it_field it_field_list | cond_it_field it_field_list | repeat_it_field it_field_list | ; repeat_it_field: '(' REPEAT NAME { rdepth++; switch (writecode) { case 'c': if (rdepth==1) printf("\tprintf(\"repeat %%d\\n\", %s);\n",$3); if (rdepth==2) printf("\tprintf(\"repeat %%d\\n\", %s[n]);\n",$3); case 'i': case 'g': case 'o': if (rdepth==1) { printf("\t{ int n; for (n = 0; n < %s; n++) {\n", $3); } if (rdepth == 2) { printf("\t{ int m; for (m = 0; m < %s[n]; m++) {\n", $3); } break; } oldrepeat = repeat; repeat = $3; } it_field_list ')' { repeat = oldrepeat; oldrepeat =0; rdepth--; switch (writecode) { case 'i': case 'g': case 'o': case 'c': printf("\t}}\n"); } } ; cond_it_field: '(' COND NAME { switch (writecode) { case 'i': case 'g': case 'o': case 'c': printf("\tif (%s) {\n", $3); break; } } it_field_list ')' { switch (writecode) { case 'i': case 'g': case 'o': case 'c': printf("\t}\n"); } } ; it_field: '(' attr_desc '(' attr_type attr_size ')' attr_id {name = $7; } enums ')' { char *desc = $2; char *type = $4; int size = $5; char *id = $7; char *p = names[rdepth]; char *ptr = pnames[rdepth]; switch (writecode) { case 'g': if (size % 8) { printf("\twriteBITS(ptr->%s%s,raw,&idx,%d);\n", id, names[rdepth], size); } else { printf("\twrite%s(ptr->%s%s,raw,&idx,%d,file);\n", type, id, names[rdepth],size/8); } break; case 'i': { if (rdepth >= 1) { printf("if (!ptr->%s) ptr->%s = (%s*)xcalloc(%s, sizeof(ptr->%s[0]));\n", id, id, type, repeat, id); } if (rdepth == 2) { printf("if (!ptr->%s[n]) ptr->%s[n] = (%s**)calloc(%s[n], sizeof(ptr->%s[n][0]));\n", id, id, type, repeat, id); } } if (size % 8) { printf("\tptr->%s%s = getBITS(raw,&idx, %d,size);\n", id, names[rdepth], size); } else { printf("\tptr->%s%s = get%s(raw,&idx, %d,size);\n", id, names[rdepth], type, size/8); } break; case 'o': printf("\tput%s(raw,%d,%d,&idx,ptr->%s%s);\n", type,size/8,size%8,id,names[rdepth]); break; case 'd': if (repeat) printf("\t/* repeat %s */\n", repeat); if (type[0] == 'I') { printf("\tint %s%s; \t/* %s */\n",ptr,id, desc); } else if (type[0] =='C') { printf("\tchar %s*%s;\t /* %s */\n",ptr,id, desc); } else { printf("\tbarray %s%s;\t /* %s */\n",ptr,id, desc); } break; case 'c': printf("tabout();\n"); printf("\tprintf(\"/*%-30s*/ ptr->%s = \");\n", desc, id); if (type[0] == 'I') printf("\tprintf(\"%%d\\n\",ptr->%s%s);\n", id,p); else if (type[0] == 'C') printf("\tprintf(\"%%s\\n\",ptr->%s%s);\n", id,p); else if (type[0] == 'B') { printf("\tpbarray(&ptr->%s%s);\n", id,p); } else abort(); break; } } ; attr_type: TYPE { $$ = $1; } | { $$ = "INT";} ; attr_desc: '(' NAME ')' { $$ = $2; } ; attr_size: NUMBER UNIT { $$ = $1 * $2; } ; attr_id: '(' NAME ')' { $$ = $2; } | { $$ = "dummy";} ; enums: | '(' enum_list ')' ; enum_list: | enum_list '(' NAME NAME ')' { switch (writecode) { case 'd': printf("#define %s %s\n", $3,$4); break; case 'c': printf("if (ptr->%s%s == %s) { tabout(); printf(\"%s\\n\");}\n", name, names[rdepth],$4,$3); } } ; name: NAME { printf("Got %s\n", word); } ; %% /* four modes -d write structure defintions for sysroff in host format -i write functions to swap into sysroff format in -o write functions to swap into sysroff format out -c write code to print info in human form */ #include <stdio.h> #include <stdlib.h> int yydebug; char writecode; int main(ac,av) int ac; char **av; { yydebug=0; if (ac > 1) writecode = av[1][1]; if (writecode == 'd') { printf("typedef struct { unsigned char *data; int len; } barray; \n"); printf("typedef int INT;\n"); printf("typedef char * CHARS;\n"); } yyparse(); return 0; } int yyerror() { printf("Error twathead\n"); }