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Source at commit cdde9cf73945d547acd3e96f9508c79e84ad0bf1 created 12 years 9 months ago. By Maarten ter Huurne, MMC: JZ4740: Added support for CPU frequency changing | |
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1 | /* |
2 | * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. |
3 | * |
4 | * |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as |
7 | * published by the Free Software Foundation; either version 2 of the |
8 | * License, or (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
18 | * USA |
19 | */ |
20 | |
21 | %option noyywrap nounput noinput never-interactive |
22 | |
23 | %x INCLUDE |
24 | %x BYTESTRING |
25 | %x PROPNODENAME |
26 | %s V1 |
27 | |
28 | PROPNODECHAR [a-zA-Z0-9,._+*#?@-] |
29 | PATHCHAR ({PROPNODECHAR}|[/]) |
30 | LABEL [a-zA-Z_][a-zA-Z0-9_]* |
31 | STRING \"([^\\"]|\\.)*\" |
32 | WS [[:space:]] |
33 | COMMENT "/*"([^*]|\*+[^*/])*\*+"/" |
34 | LINECOMMENT "//".*\n |
35 | |
36 | %{ |
37 | #include "dtc.h" |
38 | #include "srcpos.h" |
39 | #include "dtc-parser.tab.h" |
40 | |
41 | YYLTYPE yylloc; |
42 | |
43 | /* CAUTION: this will stop working if we ever use yyless() or yyunput() */ |
44 | #define YY_USER_ACTION \ |
45 | { \ |
46 | srcpos_update(&yylloc, yytext, yyleng); \ |
47 | } |
48 | |
49 | /*#define LEXDEBUG 1*/ |
50 | |
51 | #ifdef LEXDEBUG |
52 | #define DPRINT(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__) |
53 | #else |
54 | #define DPRINT(fmt, ...) do { } while (0) |
55 | #endif |
56 | |
57 | static int dts_version = 1; |
58 | |
59 | #define BEGIN_DEFAULT() DPRINT("<V1>\n"); \ |
60 | BEGIN(V1); \ |
61 | |
62 | static void push_input_file(const char *filename); |
63 | static int pop_input_file(void); |
64 | %} |
65 | |
66 | %% |
67 | <*>"/include/"{WS}*{STRING} { |
68 | char *name = strchr(yytext, '\"') + 1; |
69 | yytext[yyleng-1] = '\0'; |
70 | push_input_file(name); |
71 | } |
72 | |
73 | <*><<EOF>> { |
74 | if (!pop_input_file()) { |
75 | yyterminate(); |
76 | } |
77 | } |
78 | |
79 | <*>{STRING} { |
80 | DPRINT("String: %s\n", yytext); |
81 | yylval.data = data_copy_escape_string(yytext+1, |
82 | yyleng-2); |
83 | return DT_STRING; |
84 | } |
85 | |
86 | <*>"/dts-v1/" { |
87 | DPRINT("Keyword: /dts-v1/\n"); |
88 | dts_version = 1; |
89 | BEGIN_DEFAULT(); |
90 | return DT_V1; |
91 | } |
92 | |
93 | <*>"/memreserve/" { |
94 | DPRINT("Keyword: /memreserve/\n"); |
95 | BEGIN_DEFAULT(); |
96 | return DT_MEMRESERVE; |
97 | } |
98 | |
99 | <*>{LABEL}: { |
100 | DPRINT("Label: %s\n", yytext); |
101 | yylval.labelref = xstrdup(yytext); |
102 | yylval.labelref[yyleng-1] = '\0'; |
103 | return DT_LABEL; |
104 | } |
105 | |
106 | <V1>[0-9]+|0[xX][0-9a-fA-F]+ { |
107 | yylval.literal = xstrdup(yytext); |
108 | DPRINT("Literal: '%s'\n", yylval.literal); |
109 | return DT_LITERAL; |
110 | } |
111 | |
112 | <*>\&{LABEL} { /* label reference */ |
113 | DPRINT("Ref: %s\n", yytext+1); |
114 | yylval.labelref = xstrdup(yytext+1); |
115 | return DT_REF; |
116 | } |
117 | |
118 | <*>"&{/"{PATHCHAR}+\} { /* new-style path reference */ |
119 | yytext[yyleng-1] = '\0'; |
120 | DPRINT("Ref: %s\n", yytext+2); |
121 | yylval.labelref = xstrdup(yytext+2); |
122 | return DT_REF; |
123 | } |
124 | |
125 | <BYTESTRING>[0-9a-fA-F]{2} { |
126 | yylval.byte = strtol(yytext, NULL, 16); |
127 | DPRINT("Byte: %02x\n", (int)yylval.byte); |
128 | return DT_BYTE; |
129 | } |
130 | |
131 | <BYTESTRING>"]" { |
132 | DPRINT("/BYTESTRING\n"); |
133 | BEGIN_DEFAULT(); |
134 | return ']'; |
135 | } |
136 | |
137 | <PROPNODENAME>{PROPNODECHAR}+ { |
138 | DPRINT("PropNodeName: %s\n", yytext); |
139 | yylval.propnodename = xstrdup(yytext); |
140 | BEGIN_DEFAULT(); |
141 | return DT_PROPNODENAME; |
142 | } |
143 | |
144 | "/incbin/" { |
145 | DPRINT("Binary Include\n"); |
146 | return DT_INCBIN; |
147 | } |
148 | |
149 | <*>{WS}+ /* eat whitespace */ |
150 | <*>{COMMENT}+ /* eat C-style comments */ |
151 | <*>{LINECOMMENT}+ /* eat C++-style comments */ |
152 | |
153 | <*>. { |
154 | DPRINT("Char: %c (\\x%02x)\n", yytext[0], |
155 | (unsigned)yytext[0]); |
156 | if (yytext[0] == '[') { |
157 | DPRINT("<BYTESTRING>\n"); |
158 | BEGIN(BYTESTRING); |
159 | } |
160 | if ((yytext[0] == '{') |
161 | || (yytext[0] == ';')) { |
162 | DPRINT("<PROPNODENAME>\n"); |
163 | BEGIN(PROPNODENAME); |
164 | } |
165 | return yytext[0]; |
166 | } |
167 | |
168 | %% |
169 | |
170 | static void push_input_file(const char *filename) |
171 | { |
172 | assert(filename); |
173 | |
174 | srcfile_push(filename); |
175 | |
176 | yyin = current_srcfile->f; |
177 | |
178 | yypush_buffer_state(yy_create_buffer(yyin, YY_BUF_SIZE)); |
179 | } |
180 | |
181 | |
182 | static int pop_input_file(void) |
183 | { |
184 | if (srcfile_pop() == 0) |
185 | return 0; |
186 | |
187 | yypop_buffer_state(); |
188 | yyin = current_srcfile->f; |
189 | |
190 | return 1; |
191 | } |
192 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9