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dtc: Switch dtc to C-style literals

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dtc: Switch dtc to C-style literals

This patch introduces a new version of dts file, distinguished from
older files by starting with the special token /dts-v1/.  dts files in
the new version take C-style literals instead of the old bare hex or
OF-style base notation.  In addition, the "range" for of memreserve entries
(/memreserve/ f0000-fffff) is no longer recognized in the new format.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
This commit is contained in:
David Gibson 2007-11-07 11:17:17 +11:00 • committed by Jon Loeliger
parent 9ed27a2aac
commit 9138db565a
5 changed files with 107 additions and 16 deletions
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40
dtc-lexer.l
View file

@ -23,6 +23,7 @@
%x INCLUDE
%x BYTESTRING
%x PROPNODENAME
%s V1
PROPCHAR [a-zA-Z0-9,._+*#?-]
UNITCHAR [0-9a-f,]
@ -44,12 +45,18 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
#define DPRINT(fmt, ...) do { } while (0)
#endif
static int dts_version; /* = 0 */
#define BEGIN_DEFAULT() if (dts_version == 0) { \
DPRINT("<INITIAL>\n"); \
BEGIN(INITIAL); \
} else { \
DPRINT("<V1>\n"); \
BEGIN(V1); \
}
%}
%%
<*>"/include/" BEGIN(INCLUDE);
<INCLUDE>\"[^"\n]*\" {
@ -58,7 +65,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
/* Some unrecoverable error.*/
exit(1);
}
BEGIN(INITIAL);
BEGIN_DEFAULT();
}
@ -78,11 +85,20 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
return DT_STRING;
}
<*>"/dts-v1/" {
yylloc.filenum = srcpos_filenum;
yylloc.first_line = yylineno;
DPRINT("Keyword: /dts-v1/\n");
dts_version = 1;
BEGIN_DEFAULT();
return DT_V1;
}
<*>"/memreserve/" {
yylloc.filenum = srcpos_filenum;
yylloc.first_line = yylineno;
DPRINT("Keyword: /memreserve/\n");
BEGIN(INITIAL);
BEGIN_DEFAULT();
return DT_MEMRESERVE;
}
@ -95,7 +111,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
return DT_LABEL;
}
[bodh]# {
<INITIAL>[bodh]# {
yylloc.filenum = srcpos_filenum;
yylloc.first_line = yylineno;
if (*yytext == 'b')
@ -110,7 +126,15 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
return DT_BASE;
}
[0-9a-fA-F]+ {
<INITIAL>[0-9a-fA-F]+ {
yylloc.filenum = srcpos_filenum;
yylloc.first_line = yylineno;
yylval.literal = strdup(yytext);
DPRINT("Literal: '%s'\n", yylval.literal);
return DT_LEGACYLITERAL;
}
<V1>[0-9]+|0[xX][0-9a-fA-F]+ {
yylloc.filenum = srcpos_filenum;
yylloc.first_line = yylineno;
yylval.literal = strdup(yytext);
@ -138,7 +162,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
yylloc.filenum = srcpos_filenum;
yylloc.first_line = yylineno;
DPRINT("/BYTESTRING\n");
BEGIN(INITIAL);
BEGIN_DEFAULT();
return ']';
}
@ -147,7 +171,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
yylloc.first_line = yylineno;
DPRINT("PropNodeName: %s\n", yytext);
yylval.propnodename = strdup(yytext);
BEGIN(INITIAL);
BEGIN_DEFAULT();
return DT_PROPNODENAME;
}