Author: kan
Date: Fri Jun 11 04:38:14 2010
New Revision: 209030
URL: http://svn.freebsd.org/changeset/base/209030
Log:
In dtrace lexer, do not unput token if it is EOF.
This is harmless with OpenSolaris fex and yacc, but with FreeBSD
causes '\xff' symbol to be physically put into input buffer, causing
subsequent syntax error.
MFC after: 1 week
Modified:
head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_lex.l
Modified: head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_lex.l
==============================================================================
--- head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_lex.l Fri Jun 11
03:54:00 2010 (r209029)
+++ head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_lex.l Fri Jun 11
04:38:14 2010 (r209030)
@@ -811,7 +811,8 @@ id_or_type(const char *s)
longjmp(yypcb->pcb_jmpbuf, EDT_NOMEM);
}
- unput(c0);
+ if (c0 != EOF)
+ unput(c0);
return (ttok);
}
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