dtc: import latest upstream dtc
This updates scripts/dtc to commit 317a5d9 "dtc: zero out new label
objects" from git://git.jdl.com/software/dtc.git.
This adds features such as:
* /bits/ syntax for cell data.
* Math expressions within cell data.
* The ability to delete properties or nodes.
* Support for #line directives in the input file, which allows the use of
cpp on *.dts.
* -i command-line option (/include/ path)
* -W/-E command-line options for error/warning control.
* Removal of spew to STDOUT containing the filename being compiled.
* Many additions to the libfdt API.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Jon Loeliger <jdl@jdl.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
diff --git a/scripts/dtc/dtc-lexer.l b/scripts/dtc/dtc-lexer.l
index e866ea5..254d5af 100644
--- a/scripts/dtc/dtc-lexer.l
+++ b/scripts/dtc/dtc-lexer.l
@@ -29,6 +29,7 @@
PATHCHAR ({PROPNODECHAR}|[/])
LABEL [a-zA-Z_][a-zA-Z0-9_]*
STRING \"([^\\"]|\\.)*\"
+CHAR_LITERAL '([^']|\\')*'
WS [[:space:]]
COMMENT "/*"([^*]|\*+[^*/])*\*+"/"
LINECOMMENT "//".*\n
@@ -70,6 +71,27 @@
push_input_file(name);
}
+<*>^"#"(line)?{WS}+[0-9]+{WS}+{STRING}({WS}+[0-9]+)? {
+ char *line, *tmp, *fn;
+ /* skip text before line # */
+ line = yytext;
+ while (!isdigit(*line))
+ line++;
+ /* skip digits in line # */
+ tmp = line;
+ while (!isspace(*tmp))
+ tmp++;
+ /* "NULL"-terminate line # */
+ *tmp = '\0';
+ /* start of filename */
+ fn = strchr(tmp + 1, '"') + 1;
+ /* strip trailing " from filename */
+ tmp = strchr(fn, '"');
+ *tmp = 0;
+ /* -1 since #line is the number of the next line */
+ srcpos_set_line(xstrdup(fn), atoi(line) - 1);
+ }
+
<*><<EOF>> {
if (!pop_input_file()) {
yyterminate();
@@ -96,6 +118,26 @@
return DT_MEMRESERVE;
}
+<*>"/bits/" {
+ DPRINT("Keyword: /bits/\n");
+ BEGIN_DEFAULT();
+ return DT_BITS;
+ }
+
+<*>"/delete-property/" {
+ DPRINT("Keyword: /delete-property/\n");
+ DPRINT("<PROPNODENAME>\n");
+ BEGIN(PROPNODENAME);
+ return DT_DEL_PROP;
+ }
+
+<*>"/delete-node/" {
+ DPRINT("Keyword: /delete-node/\n");
+ DPRINT("<PROPNODENAME>\n");
+ BEGIN(PROPNODENAME);
+ return DT_DEL_NODE;
+ }
+
<*>{LABEL}: {
DPRINT("Label: %s\n", yytext);
yylval.labelref = xstrdup(yytext);
@@ -103,12 +145,19 @@
return DT_LABEL;
}
-<V1>[0-9]+|0[xX][0-9a-fA-F]+ {
+<V1>([0-9]+|0[xX][0-9a-fA-F]+)(U|L|UL|LL|ULL)? {
yylval.literal = xstrdup(yytext);
DPRINT("Literal: '%s'\n", yylval.literal);
return DT_LITERAL;
}
+<*>{CHAR_LITERAL} {
+ yytext[yyleng-1] = '\0';
+ yylval.literal = xstrdup(yytext+1);
+ DPRINT("Character literal: %s\n", yylval.literal);
+ return DT_CHAR_LITERAL;
+ }
+
<*>\&{LABEL} { /* label reference */
DPRINT("Ref: %s\n", yytext+1);
yylval.labelref = xstrdup(yytext+1);
@@ -134,9 +183,10 @@
return ']';
}
-<PROPNODENAME>{PROPNODECHAR}+ {
+<PROPNODENAME>\\?{PROPNODECHAR}+ {
DPRINT("PropNodeName: %s\n", yytext);
- yylval.propnodename = xstrdup(yytext);
+ yylval.propnodename = xstrdup((yytext[0] == '\\') ?
+ yytext + 1 : yytext);
BEGIN_DEFAULT();
return DT_PROPNODENAME;
}
@@ -150,6 +200,15 @@
<*>{COMMENT}+ /* eat C-style comments */
<*>{LINECOMMENT}+ /* eat C++-style comments */
+<*>"<<" { return DT_LSHIFT; };
+<*>">>" { return DT_RSHIFT; };
+<*>"<=" { return DT_LE; };
+<*>">=" { return DT_GE; };
+<*>"==" { return DT_EQ; };
+<*>"!=" { return DT_NE; };
+<*>"&&" { return DT_AND; };
+<*>"||" { return DT_OR; };
+
<*>. {
DPRINT("Char: %c (\\x%02x)\n", yytext[0],
(unsigned)yytext[0]);