443 lines
8.2 KiB
Plaintext
443 lines
8.2 KiB
Plaintext
/* Copyright (C) 2001-2017 Free Software Foundation, Inc.
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Written by Steve Chamberlain of Cygnus Support (steve@cygnus.com).
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This file is part of GNU binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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%{
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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static char writecode;
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static char *it;
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static int code;
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static char * repeat;
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static char *oldrepeat;
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static char *name;
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static int rdepth;
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static char *names[] = {" ","[n]","[n][m]"};
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static char *pnames[]= {"","*","**"};
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static int yyerror (char *s);
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extern int yylex (void);
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%}
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%union {
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int i;
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char *s;
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}
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%token COND
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%token REPEAT
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%token '(' ')'
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%token <s> TYPE
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%token <s> NAME
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%token <i> NUMBER UNIT
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%type <i> attr_size
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%type <s> attr_desc attr_id attr_type
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%%
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top: {
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switch (writecode)
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{
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case 'i':
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printf("#ifdef SYSROFF_SWAP_IN\n");
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break;
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case 'p':
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printf("#ifdef SYSROFF_p\n");
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break;
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case 'd':
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break;
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case 'g':
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printf("#ifdef SYSROFF_SWAP_OUT\n");
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break;
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case 'c':
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printf("#ifdef SYSROFF_PRINT\n");
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printf("#include <stdio.h>\n");
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printf("#include <stdlib.h>\n");
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printf("#include <ansidecl.h>\n");
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break;
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}
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}
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it_list {
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switch (writecode) {
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case 'i':
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case 'p':
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case 'g':
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case 'c':
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printf("#endif\n");
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break;
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case 'd':
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break;
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}
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}
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;
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it_list: it it_list
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;
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it:
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'(' NAME NUMBER
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{
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it = $2; code = $3;
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switch (writecode)
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{
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case 'd':
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printf("\n\n\n#define IT_%s_CODE 0x%x\n", it,code);
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printf("struct IT_%s;\n", it);
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printf("extern void sysroff_swap_%s_in (struct IT_%s *);\n",
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$2, it);
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printf("extern void sysroff_swap_%s_out (FILE *, struct IT_%s *);\n",
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$2, it);
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printf("extern void sysroff_print_%s_out (struct IT_%s *);\n",
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$2, it);
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printf("struct IT_%s { \n", it);
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break;
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case 'i':
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printf("void sysroff_swap_%s_in (struct IT_%s * ptr)\n",$2,it);
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printf("{\n");
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printf("\tunsigned char raw[255];\n");
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printf("\tint idx = 0;\n");
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printf("\tint size;\n");
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printf("\tmemset(raw,0,255);\n");
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printf("\tmemset(ptr,0,sizeof(*ptr));\n");
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printf("\tsize = fillup(raw);\n");
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break;
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case 'g':
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printf("void sysroff_swap_%s_out (FILE * ffile, struct IT_%s * ptr)\n",$2,it);
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printf("{\n");
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printf("\tunsigned char raw[255];\n");
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printf("\tint idx = 16;\n");
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printf("\tmemset (raw, 0, 255);\n");
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printf("\tcode = IT_%s_CODE;\n", it);
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break;
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case 'o':
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printf("void sysroff_swap_%s_out (bfd * abfd, struct IT_%s * ptr)\n",$2, it);
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printf("{\n");
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printf("\tint idx = 0;\n");
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break;
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case 'c':
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printf("void sysroff_print_%s_out (struct IT_%s *ptr)\n",$2,it);
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printf("{\n");
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printf("itheader(\"%s\", IT_%s_CODE);\n",$2,$2);
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break;
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case 't':
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break;
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}
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}
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it_field_list
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')'
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{
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switch (writecode) {
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case 'd':
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printf("};\n");
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break;
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case 'g':
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printf("\tchecksum(ffile,raw, idx, IT_%s_CODE);\n", it);
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/* Fall through. */
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case 'i':
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case 'o':
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case 'c':
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printf("}\n");
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}
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free (it);
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}
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;
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it_field_list:
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it_field it_field_list
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| cond_it_field it_field_list
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| repeat_it_field it_field_list
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;
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repeat_it_field: '(' REPEAT NAME
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{
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rdepth++;
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switch (writecode)
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{
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case 'c':
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if (rdepth==1)
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printf("\tprintf(\"repeat %%d\\n\", %s);\n",$3);
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if (rdepth==2)
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printf("\tprintf(\"repeat %%d\\n\", %s[n]);\n",$3);
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/* Fall through. */
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case 'i':
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case 'g':
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case 'o':
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if (rdepth==1)
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{
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printf("\t{ int n; for (n = 0; n < %s; n++) {\n", $3);
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}
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if (rdepth == 2) {
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printf("\t{ int m; for (m = 0; m < %s[n]; m++) {\n", $3);
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}
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break;
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}
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oldrepeat = repeat;
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repeat = $3;
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}
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it_field_list ')'
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{
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free (repeat);
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repeat = oldrepeat;
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oldrepeat =0;
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rdepth--;
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switch (writecode)
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{
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case 'i':
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case 'g':
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case 'o':
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case 'c':
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printf("\t}}\n");
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}
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}
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;
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cond_it_field: '(' COND NAME
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{
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switch (writecode)
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{
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case 'i':
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case 'g':
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case 'o':
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case 'c':
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printf("\tif (%s) {\n", $3);
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break;
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}
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free ($3);
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}
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it_field_list ')'
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{
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switch (writecode)
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{
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case 'i':
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case 'g':
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case 'o':
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case 'c':
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printf("\t}\n");
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}
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}
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;
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it_field:
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'(' attr_desc '(' attr_type attr_size ')' attr_id
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{name = $7; }
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enums ')'
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{
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char *desc = $2;
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char *type = $4;
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int size = $5;
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char *id = $7;
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char *p = names[rdepth];
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char *ptr = pnames[rdepth];
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switch (writecode)
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{
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case 'g':
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if (size % 8)
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{
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printf("\twriteBITS(ptr->%s%s,raw,&idx,%d);\n",
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id,
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names[rdepth], size);
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}
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else {
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printf("\twrite%s(ptr->%s%s,raw,&idx,%d,ffile);\n",
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type,
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id,
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names[rdepth],size/8);
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}
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break;
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case 'i':
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{
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if (rdepth >= 1)
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{
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printf("if (!ptr->%s) ptr->%s = (%s*)xcalloc(%s, sizeof(ptr->%s[0]));\n",
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id,
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id,
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type,
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repeat,
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id);
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}
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if (rdepth == 2)
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{
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printf("if (!ptr->%s[n]) ptr->%s[n] = (%s**)xcalloc(%s[n], sizeof(ptr->%s[n][0]));\n",
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id,
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id,
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type,
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repeat,
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id);
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}
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}
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if (size % 8)
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{
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printf("\tptr->%s%s = getBITS(raw,&idx, %d,size);\n",
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id,
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names[rdepth],
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size);
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}
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else {
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printf("\tptr->%s%s = get%s(raw,&idx, %d,size);\n",
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id,
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names[rdepth],
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type,
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size/8);
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}
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break;
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case 'o':
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printf("\tput%s(raw,%d,%d,&idx,ptr->%s%s);\n", type,size/8,size%8,id,names[rdepth]);
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break;
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case 'd':
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if (repeat)
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printf("\t/* repeat %s */\n", repeat);
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if (type[0] == 'I') {
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printf("\tint %s%s; \t/* %s */\n",ptr,id, desc);
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}
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else if (type[0] =='C') {
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printf("\tchar %s*%s;\t /* %s */\n",ptr,id, desc);
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}
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else {
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printf("\tbarray %s%s;\t /* %s */\n",ptr,id, desc);
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}
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break;
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case 'c':
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printf("tabout();\n");
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printf("\tprintf(\"/*%-30s*/ ptr->%s = \");\n", desc, id);
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if (type[0] == 'I')
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printf("\tprintf(\"%%d\\n\",ptr->%s%s);\n", id,p);
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else if (type[0] == 'C')
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printf("\tprintf(\"%%s\\n\",ptr->%s%s);\n", id,p);
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else if (type[0] == 'B')
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{
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printf("\tpbarray(&ptr->%s%s);\n", id,p);
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}
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else abort();
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break;
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}
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free (desc);
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free (id);
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}
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;
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attr_type:
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TYPE { $$ = $1; }
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| { $$ = "INT";}
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;
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attr_desc:
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'(' NAME ')'
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{ $$ = $2; }
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;
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attr_size:
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NUMBER UNIT
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{ $$ = $1 * $2; }
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;
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attr_id:
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'(' NAME ')' { $$ = $2; }
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| { $$ = strdup ("dummy");}
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;
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enums:
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| '(' enum_list ')' ;
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enum_list:
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enum_list '(' NAME NAME ')' {
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switch (writecode)
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{
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case 'd':
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printf("#define %s %s\n", $3,$4);
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break;
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case 'c':
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printf("if (ptr->%s%s == %s) { tabout(); printf(\"%s\\n\");}\n", name, names[rdepth],$4,$3);
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}
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free ($3);
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free ($4);
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}
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;
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%%
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/* four modes
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-d write structure definitions for sysroff in host format
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-i write functions to swap into sysroff format in
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-o write functions to swap into sysroff format out
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-c write code to print info in human form */
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int yydebug;
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int
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main (int ac, char **av)
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{
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yydebug=0;
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if (ac > 1)
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writecode = av[1][1];
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if (writecode == 'd')
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{
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printf("typedef struct { unsigned char *data; int len; } barray; \n");
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printf("typedef int INT;\n");
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printf("typedef char * CHARS;\n");
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}
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yyparse();
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return 0;
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}
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static int
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yyerror (char *s)
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{
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fprintf(stderr, "%s\n" , s);
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return 0;
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}
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