kernel
/
dtc
mirror of https://git.kernel.org/pub/scm/utils/dtc/dtc.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Rudimentary support for reporting the line number of syntax errors.

main
David Gibson 2005-10-19 16:00:31 +10:00
parent b4ac04952a
commit 86dbcbd1e4
2 changed files with 22 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
dtc-lexer.l
View File

@ -18,7 +18,7 @@
* USA
*/

%option noyywrap nounput
%option noyywrap nounput yylineno

%x CELLDATA
%x BYTESTRING
@ -43,24 +43,30 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
#define DPRINT(fmt, ...) do { } while (0)
#endif



%}

%%

\"[^"]*\" {
yylloc.first_line = yylineno;
DPRINT("String: %s\n", yytext);
yylval.data = data_copy_escape_string(yytext+1,
yyleng-2);
yylloc.first_line = yylineno;
return DT_STRING;
}

"/memreserve/" {
yylloc.first_line = yylineno;
DPRINT("Keyword: /memreserve/\n");
BEGIN(MEMRESERVE);
return DT_MEMRESERVE;
}

<MEMRESERVE>[0-9a-fA-F]+ {
yylloc.first_line = yylineno;
if (yyleng > 2*sizeof(yylval.addr)) {
fprintf(stderr, "Address value %s too large\n",
yytext);
@ -72,12 +78,14 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
}

<MEMRESERVE>";" {
yylloc.first_line = yylineno;
DPRINT("/MEMRESERVE\n");
BEGIN(INITIAL);
return ';';
}

<CELLDATA>[0-9a-fA-F]+ {
yylloc.first_line = yylineno;
if (yyleng > 2*sizeof(yylval.cval)) {
fprintf(stderr,
"Cell value %s too long\n", yytext);
@ -88,36 +96,42 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
}

<CELLDATA>">" {
yylloc.first_line = yylineno;
DPRINT("/CELLDATA\n");
BEGIN(INITIAL);
return '>';
}

<CELLDATA>\&{REFCHAR}* {
yylloc.first_line = yylineno;
DPRINT("Ref: %s\n", yytext+1);
yylval.str = strdup(yytext+1);
return DT_REF;
}

<BYTESTRING>[0-9a-fA-F]{2} {
yylloc.first_line = yylineno;
yylval.byte = strtol(yytext, NULL, 16);
DPRINT("Byte: %02x\n", (int)yylval.byte);
return DT_BYTE;
}

<BYTESTRING>"]" {
yylloc.first_line = yylineno;
DPRINT("/BYTESTRING\n");
BEGIN(INITIAL);
return ']';
}

{PROPCHAR}+ {
yylloc.first_line = yylineno;
DPRINT("PropName: %s\n", yytext);
yylval.str = strdup(yytext);
return DT_PROPNAME;
}

{PROPCHAR}+(@{UNITCHAR}+)? {
yylloc.first_line = yylineno;
DPRINT("NodeName: %s\n", yytext);
yylval.str = strdup(yytext);
return DT_NODENAME;
@ -125,6 +139,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])


[a-zA-Z_][a-zA-Z0-9_]*: {
yylloc.first_line = yylineno;
DPRINT("Label: %s\n", yytext);
yylval.str = strdup(yytext);
yylval.str[yyleng-1] = '\0';
@ -134,6 +149,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
<*>{WS}+ /* eat whitespace */

<*>"/*"([^*]|\*+[^*/])*\*+"/" {
yylloc.first_line = yylineno;
DPRINT("Comment: %s\n", yytext);
/* eat comments */
}
@ -141,6 +157,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@])
<*>"//".*\n /* eat line comments */

<*>. {
yylloc.first_line = yylineno;
switch (yytext[0]) {
case '<':
DPRINT("CELLDATA\n");

7
dtc-parser.y
View File

@ -18,6 +18,9 @@
* USA
*/

%glr-parser
%locations

%{
#include "dtc.h"

@ -69,8 +72,6 @@ extern struct boot_info *the_boot_info;
%type <str> label
%type <str> nodename

%glr-parser

%%

sourcefile: memreserves devicetree {
@ -160,5 +161,5 @@ label: DT_LABEL { $$ = $1; }

void yyerror (char const *s)
{
fprintf (stderr, "%s\n", s);
fprintf (stderr, "%s at line %d\n", s, yylloc.first_line);
}