Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | %{ |
| 2 | /* |
| 3 | * Sub-parser for macro invocation in the Aic7xxx SCSI |
| 4 | * Host adapter sequencer assembler. |
| 5 | * |
| 6 | * Copyright (c) 2001 Adaptec Inc. |
| 7 | * All rights reserved. |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions, and the following disclaimer, |
| 14 | * without modification. |
| 15 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 16 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 17 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 18 | * including a substantially similar Disclaimer requirement for further |
| 19 | * binary redistribution. |
| 20 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 21 | * of any contributors may be used to endorse or promote products derived |
| 22 | * from this software without specific prior written permission. |
| 23 | * |
| 24 | * Alternatively, this software may be distributed under the terms of the |
| 25 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 26 | * Software Foundation. |
| 27 | * |
| 28 | * NO WARRANTY |
| 29 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 30 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 31 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 32 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 33 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 34 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 35 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 36 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 37 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 38 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 39 | * POSSIBILITY OF SUCH DAMAGES. |
| 40 | * |
| 41 | * $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_macro_gram.y#5 $ |
| 42 | * |
| 43 | * $FreeBSD$ |
| 44 | */ |
| 45 | |
| 46 | #include <sys/types.h> |
| 47 | |
| 48 | #include <inttypes.h> |
| 49 | #include <regex.h> |
| 50 | #include <stdio.h> |
| 51 | #include <stdlib.h> |
| 52 | #include <string.h> |
| 53 | #include <sysexits.h> |
| 54 | |
| 55 | #ifdef __linux__ |
| 56 | #include "../queue.h" |
| 57 | #else |
| 58 | #include <sys/queue.h> |
| 59 | #endif |
| 60 | |
| 61 | #include "aicasm.h" |
| 62 | #include "aicasm_symbol.h" |
| 63 | #include "aicasm_insformat.h" |
| 64 | |
| 65 | static symbol_t *macro_symbol; |
| 66 | |
| 67 | static void add_macro_arg(const char *argtext, int position); |
James Bottomley | f45ffae | 2007-05-22 09:26:22 -0500 | [diff] [blame] | 68 | void mmerror(const char *string); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | %} |
| 71 | |
| 72 | %union { |
| 73 | int value; |
| 74 | char *str; |
| 75 | symbol_t *sym; |
| 76 | } |
| 77 | |
| 78 | |
| 79 | %token <str> T_ARG |
| 80 | |
| 81 | %token <sym> T_SYMBOL |
| 82 | |
| 83 | %type <value> macro_arglist |
| 84 | |
| 85 | %% |
| 86 | |
| 87 | macrocall: |
| 88 | T_SYMBOL '(' |
| 89 | { |
| 90 | macro_symbol = $1; |
| 91 | } |
| 92 | macro_arglist ')' |
| 93 | { |
| 94 | if (macro_symbol->info.macroinfo->narg != $4) { |
| 95 | printf("Narg == %d", macro_symbol->info.macroinfo->narg); |
| 96 | stop("Too few arguments for macro invocation", |
| 97 | EX_DATAERR); |
| 98 | /* NOTREACHED */ |
| 99 | } |
| 100 | macro_symbol = NULL; |
| 101 | YYACCEPT; |
| 102 | } |
| 103 | ; |
| 104 | |
| 105 | macro_arglist: |
| 106 | { |
| 107 | /* Macros can take 0 arguments */ |
| 108 | $$ = 0; |
| 109 | } |
| 110 | | T_ARG |
| 111 | { |
| 112 | $$ = 1; |
| 113 | add_macro_arg($1, 1); |
| 114 | } |
| 115 | | macro_arglist ',' T_ARG |
| 116 | { |
| 117 | if ($1 == 0) { |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 118 | stop("Comma without preceding argument in arg list", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | EX_DATAERR); |
| 120 | /* NOTREACHED */ |
| 121 | } |
| 122 | $$ = $1 + 1; |
| 123 | add_macro_arg($3, $$); |
| 124 | } |
| 125 | ; |
| 126 | |
| 127 | %% |
| 128 | |
| 129 | static void |
| 130 | add_macro_arg(const char *argtext, int argnum) |
| 131 | { |
| 132 | struct macro_arg *marg; |
| 133 | int i; |
| 134 | |
| 135 | if (macro_symbol == NULL || macro_symbol->type != MACRO) { |
| 136 | stop("Invalid current symbol for adding macro arg", |
| 137 | EX_SOFTWARE); |
| 138 | /* NOTREACHED */ |
| 139 | } |
| 140 | /* |
| 141 | * Macro Invocation. Find the appropriate argument and fill |
| 142 | * in the replace ment text for this call. |
| 143 | */ |
| 144 | i = 0; |
| 145 | STAILQ_FOREACH(marg, ¯o_symbol->info.macroinfo->args, links) { |
| 146 | i++; |
| 147 | if (i == argnum) |
| 148 | break; |
| 149 | } |
| 150 | if (marg == NULL) { |
| 151 | stop("Too many arguments for macro invocation", EX_DATAERR); |
| 152 | /* NOTREACHED */ |
| 153 | } |
| 154 | marg->replacement_text = strdup(argtext); |
| 155 | if (marg->replacement_text == NULL) { |
| 156 | stop("Unable to replicate replacement text", EX_SOFTWARE); |
| 157 | /* NOTREACHED */ |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | void |
| 162 | mmerror(const char *string) |
| 163 | { |
| 164 | stop(string, EX_DATAERR); |
| 165 | } |