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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RESEND 1/1] libxl: introduce an option for disabling the non-O_DIRECT workaround
Felipe Franciosi writes ("[PATCH RESEND 1/1] libxl: introduce an option for
disabling the non-O_DIRECT workaround"):
> From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
>
> Document and implement a new option that permits disk backends which
> would otherwise have to avoid O_DIRECT (because of the network memory
> lifetime bug) to use it anyway. This is:
Thanks. I have applied this. I also updated the bison output, see
below.
Ian.
From dc92f1a781a160229e4935dc03040bc78712a828 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date: Fri, 2 May 2014 17:47:55 +0100
Subject: [PATCH 1/2] libxl: Rerun bison
This updates libxlu_cfg_y.[ch] to code generated by bison from
Debian wheezy (1:2.5.dfsg-2.1 i386).
There should be no functional change since there is no change to the
source file, but we will inherit bugfixes and behavioural changes from
the new version of bison. So this is more a matter of hope than
knowledge.
Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
tools/libxl/libxlu_cfg_y.c | 538 ++++++++++++++++++++++++--------------------
tools/libxl/libxlu_cfg_y.h | 14 +-
2 files changed, 304 insertions(+), 248 deletions(-)
diff --git a/tools/libxl/libxlu_cfg_y.c b/tools/libxl/libxlu_cfg_y.c
index 218933e..4437e05 100644
--- a/tools/libxl/libxlu_cfg_y.c
+++ b/tools/libxl/libxlu_cfg_y.c
@@ -1,10 +1,8 @@
+/* A Bison parser, made by GNU Bison 2.5. */
-/* A Bison parser, made by GNU Bison 2.4.1. */
-
-/* Skeleton implementation for Bison's Yacc-like parsers in C
+/* Bison implementation for Yacc-like parsers in C
- Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
- Free Software Foundation, Inc.
+ Copyright (C) 1984, 1989-1990, 2000-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -46,7 +44,7 @@
#define YYBISON 1
/* Bison version. */
-#define YYBISON_VERSION "2.4.1"
+#define YYBISON_VERSION "2.5"
/* Skeleton name. */
#define YYSKELETON_NAME "yacc.c"
@@ -75,7 +73,7 @@
/* Copy the first part of user declarations. */
-/* Line 189 of yacc.c */
+/* Line 268 of yacc.c */
#line 19 "libxlu_cfg_y.y"
#define YYLEX_PARAM ctx->scanner
@@ -83,8 +81,8 @@
#include "libxlu_cfg_l.h"
-/* Line 189 of yacc.c */
-#line 88 "libxlu_cfg_y.c"
+/* Line 268 of yacc.c */
+#line 86 "libxlu_cfg_y.c"
/* Enabling traces. */
#ifndef YYDEBUG
@@ -124,7 +122,7 @@
typedef union YYSTYPE
{
-/* Line 214 of yacc.c */
+/* Line 293 of yacc.c */
#line 25 "libxlu_cfg_y.y"
char *string;
@@ -132,8 +130,8 @@ typedef union YYSTYPE
-/* Line 214 of yacc.c */
-#line 137 "libxlu_cfg_y.c"
+/* Line 293 of yacc.c */
+#line 135 "libxlu_cfg_y.c"
} YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
@@ -157,8 +155,8 @@ typedef struct YYLTYPE
/* Copy the second part of user declarations. */
-/* Line 264 of yacc.c */
-#line 162 "libxlu_cfg_y.c"
+/* Line 343 of yacc.c */
+#line 160 "libxlu_cfg_y.c"
#ifdef short
# undef short
@@ -208,7 +206,7 @@ typedef short int yytype_int16;
#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
#ifndef YY_
-# if YYENABLE_NLS
+# if defined YYENABLE_NLS && YYENABLE_NLS
# if ENABLE_NLS
# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
# define YY_(msgid) dgettext ("bison-runtime", msgid)
@@ -261,11 +259,11 @@ YYID (yyi)
# define alloca _alloca
# else
# define YYSTACK_ALLOC alloca
-# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ ||
defined __C99__FUNC__ \
+# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS && (defined __STDC__ ||
defined __C99__FUNC__ \
|| defined __cplusplus || defined _MSC_VER)
# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-# ifndef _STDLIB_H
-# define _STDLIB_H 1
+# ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
# endif
# endif
# endif
@@ -288,24 +286,24 @@ YYID (yyi)
# ifndef YYSTACK_ALLOC_MAXIMUM
# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
# endif
-# if (defined __cplusplus && ! defined _STDLIB_H \
+# if (defined __cplusplus && ! defined EXIT_SUCCESS \
&& ! ((defined YYMALLOC || defined malloc) \
&& (defined YYFREE || defined free)))
# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-# ifndef _STDLIB_H
-# define _STDLIB_H 1
+# ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
# endif
# endif
# ifndef YYMALLOC
# define YYMALLOC malloc
-# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined
__C99__FUNC__ \
+# if ! defined malloc && ! defined EXIT_SUCCESS && (defined __STDC__ ||
defined __C99__FUNC__ \
|| defined __cplusplus || defined _MSC_VER)
void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
# endif
# endif
# ifndef YYFREE
# define YYFREE free
-# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined
__C99__FUNC__ \
+# if ! defined free && ! defined EXIT_SUCCESS && (defined __STDC__ ||
defined __C99__FUNC__ \
|| defined __cplusplus || defined _MSC_VER)
void free (void *); /* INFRINGES ON USER NAME SPACE */
# endif
@@ -336,23 +334,7 @@ union yyalloc
((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ 2 * YYSTACK_GAP_MAXIMUM)
-/* Copy COUNT objects from FROM to TO. The source and destination do
- not overlap. */
-# ifndef YYCOPY
-# if defined __GNUC__ && 1 < __GNUC__
-# define YYCOPY(To, From, Count) \
- __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
-# else
-# define YYCOPY(To, From, Count) \
- do \
- { \
- YYSIZE_T yyi; \
- for (yyi = 0; yyi < (Count); yyi++) \
- (To)[yyi] = (From)[yyi]; \
- } \
- while (YYID (0))
-# endif
-# endif
+# define YYCOPY_NEEDED 1
/* Relocate STACK from its old location to the new one. The
local variables YYSIZE and YYSTACKSIZE give the old and new number of
@@ -372,6 +354,26 @@ union yyalloc
#endif
+#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
+/* Copy COUNT objects from FROM to TO. The source and destination do
+ not overlap. */
+# ifndef YYCOPY
+# if defined __GNUC__ && 1 < __GNUC__
+# define YYCOPY(To, From, Count) \
+ __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+# else
+# define YYCOPY(To, From, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (To)[yyi] = (From)[yyi]; \
+ } \
+ while (YYID (0))
+# endif
+# endif
+#endif /* !YYCOPY_NEEDED */
+
/* YYFINAL -- State number of the termination state. */
#define YYFINAL 3
/* YYLAST -- Last index in YYTABLE. */
@@ -492,8 +494,8 @@ static const yytype_uint8 yyr2[] =
5, 0, 2
};
-/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
- STATE-NUM when YYTABLE doesn't specify something else to do. Zero
+/* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM.
+ Performed when YYTABLE doesn't specify something else to do. Zero
means the default is an error. */
static const yytype_uint8 yydefact[] =
{
@@ -528,8 +530,7 @@ static const yytype_int8 yypgoto[] =
/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
positive, shift that token. If negative, reduce the rule which
- number is the opposite. If zero, do what YYDEFACT says.
- If YYTABLE_NINF, syntax error. */
+ number is the opposite. If YYTABLE_NINF, syntax error. */
#define YYTABLE_NINF -3
static const yytype_int8 yytable[] =
{
@@ -538,6 +539,12 @@ static const yytype_int8 yytable[] =
16, 26, 25, 20, 13
};
+#define yypact_value_is_default(yystate) \
+ ((yystate) == (-18))
+
+#define yytable_value_is_error(yytable_value) \
+ YYID (0)
+
static const yytype_uint8 yycheck[] =
{
0, 1, 19, 3, 0, 6, 6, 21, 8, 6,
@@ -566,9 +573,18 @@ static const yytype_uint8 yystos[] =
/* Like YYERROR except do call yyerror. This remains here temporarily
to ease the transition to the new meaning of YYERROR, for GCC.
- Once GCC version 2 has supplanted version 1, this can go. */
+ Once GCC version 2 has supplanted version 1, this can go. However,
+ YYFAIL appears to be in use. Nevertheless, it is formally deprecated
+ in Bison 2.4.2's NEWS entry, where a plan to phase it out is
+ discussed. */
#define YYFAIL goto yyerrlab
+#if defined YYFAIL
+ /* This is here to suppress warnings from the GCC cpp's
+ -Wunused-macros. Normally we don't worry about that warning, but
+ some users do, and we want to make it easy for users to remove
+ YYFAIL uses, which will produce warnings from Bison 2.5. */
+#endif
#define YYRECOVERING() (!!yyerrstatus)
@@ -578,7 +594,6 @@ do
\
{ \
yychar = (Token); \
yylval = (Value); \
- yytoken = YYTRANSLATE (yychar); \
YYPOPSTACK (1); \
goto yybackup; \
} \
@@ -625,7 +640,7 @@ while (YYID (0))
we won't break user code: when these are the locations we know. */
#ifndef YY_LOCATION_PRINT
-# if YYLTYPE_IS_TRIVIAL
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
# define YY_LOCATION_PRINT(File, Loc) \
fprintf (File, "%d.%d-%d.%d", \
(Loc).first_line, (Loc).first_column, \
@@ -834,7 +849,6 @@ int yydebug;
# define YYMAXDEPTH 10000
#endif
-
#if YYERROR_VERBOSE
@@ -937,115 +951,142 @@ yytnamerr (char *yyres, const char *yystr)
}
# endif
-/* Copy into YYRESULT an error message about the unexpected token
- YYCHAR while in state YYSTATE. Return the number of bytes copied,
- including the terminating null byte. If YYRESULT is null, do not
- copy anything; just return the number of bytes that would be
- copied. As a special case, return 0 if an ordinary "syntax error"
- message will do. Return YYSIZE_MAXIMUM if overflow occurs during
- size calculation. */
-static YYSIZE_T
-yysyntax_error (char *yyresult, int yystate, int yychar)
-{
- int yyn = yypact[yystate];
+/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
+ about the unexpected token YYTOKEN for the state stack whose top is
+ YYSSP.
- if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
- return 0;
- else
+ Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is
+ not large enough to hold the message. In that case, also set
+ *YYMSG_ALLOC to the required number of bytes. Return 2 if the
+ required number of bytes is too large to store. */
+static int
+yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
+ yytype_int16 *yyssp, int yytoken)
+{
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytoken]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ /* Internationalized format string. */
+ const char *yyformat = 0;
+ /* Arguments of yyformat. */
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ /* Number of reported tokens (one for the "unexpected", one per
+ "expected"). */
+ int yycount = 0;
+
+ /* There are many possibilities here to consider:
+ - Assume YYFAIL is not used. It's too flawed to consider. See
+ <http://lists.gnu.org/archive/html/bison-patches/2009-12/msg00024.html>
+ for details. YYERROR is fine as it does not invoke this
+ function.
+ - If this state is a consistent state with a default action, then
+ the only way this function was invoked is if the default action
+ is an error action. In that case, don't check for expected
+ tokens because there are none.
+ - The only way there can be no lookahead present (in yychar) is if
+ this state is a consistent state with a default action. Thus,
+ detecting the absence of a lookahead is sufficient to determine
+ that there is no unexpected or expected token to report. In that
+ case, just report a simple "syntax error".
+ - Don't assume there isn't a lookahead just because this state is a
+ consistent state with a default action. There might have been a
+ previous inconsistent state, consistent state with a non-default
+ action, or user semantic action that manipulated yychar.
+ - Of course, the expected token list depends on states to have
+ correct lookahead information, and it depends on the parser not
+ to perform extra reductions after fetching a lookahead from the
+ scanner and before detecting a syntax error. Thus, state merging
+ (from LALR or IELR) and default reductions corrupt the expected
+ token list. However, the list is correct for canonical LR with
+ one exception: it will still contain any token that will not be
+ accepted due to an error action in a later state.
+ */
+ if (yytoken != YYEMPTY)
{
- int yytype = YYTRANSLATE (yychar);
- YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
- YYSIZE_T yysize = yysize0;
- YYSIZE_T yysize1;
- int yysize_overflow = 0;
- enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
- char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
- int yyx;
-
-# if 0
- /* This is so xgettext sees the translatable formats that are
- constructed on the fly. */
- YY_("syntax error, unexpected %s");
- YY_("syntax error, unexpected %s, expecting %s");
- YY_("syntax error, unexpected %s, expecting %s or %s");
- YY_("syntax error, unexpected %s, expecting %s or %s or %s");
- YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
-# endif
- char *yyfmt;
- char const *yyf;
- static char const yyunexpected[] = "syntax error, unexpected %s";
- static char const yyexpecting[] = ", expecting %s";
- static char const yyor[] = " or %s";
- char yyformat[sizeof yyunexpected
- + sizeof yyexpecting - 1
- + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
- * (sizeof yyor - 1))];
- char const *yyprefix = yyexpecting;
-
- /* Start YYX at -YYN if negative to avoid negative indexes in
- YYCHECK. */
- int yyxbegin = yyn < 0 ? -yyn : 0;
-
- /* Stay within bounds of both yycheck and yytname. */
- int yychecklim = YYLAST - yyn + 1;
- int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
- int yycount = 1;
-
- yyarg[0] = yytname[yytype];
- yyfmt = yystpcpy (yyformat, yyunexpected);
-
- for (yyx = yyxbegin; yyx < yyxend; ++yyx)
- if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
- {
- if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
- {
- yycount = 1;
- yysize = yysize0;
- yyformat[sizeof yyunexpected - 1] = '\0';
- break;
- }
- yyarg[yycount++] = yytname[yyx];
- yysize1 = yysize + yytnamerr (0, yytname[yyx]);
- yysize_overflow |= (yysize1 < yysize);
- yysize = yysize1;
- yyfmt = yystpcpy (yyfmt, yyprefix);
- yyprefix = yyor;
- }
+ int yyn = yypact[*yyssp];
+ yyarg[yycount++] = yytname[yytoken];
+ if (!yypact_value_is_default (yyn))
+ {
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. In other words, skip the first -YYN actions for
+ this state because they are default actions. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yyx;
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
+ && !yytable_value_is_error (yytable[yyx + yyn]))
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ if (! (yysize <= yysize1
+ && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+ return 2;
+ yysize = yysize1;
+ }
+ }
+ }
- yyf = YY_(yyformat);
- yysize1 = yysize + yystrlen (yyf);
- yysize_overflow |= (yysize1 < yysize);
- yysize = yysize1;
+ switch (yycount)
+ {
+# define YYCASE_(N, S) \
+ case N: \
+ yyformat = S; \
+ break
+ YYCASE_(0, YY_("syntax error"));
+ YYCASE_(1, YY_("syntax error, unexpected %s"));
+ YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
+ YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
+ YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
+ YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or
%s"));
+# undef YYCASE_
+ }
- if (yysize_overflow)
- return YYSIZE_MAXIMUM;
+ yysize1 = yysize + yystrlen (yyformat);
+ if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+ return 2;
+ yysize = yysize1;
- if (yyresult)
- {
- /* Avoid sprintf, as that infringes on the user's name space.
- Don't have undefined behavior even if the translation
- produced a string with the wrong number of "%s"s. */
- char *yyp = yyresult;
- int yyi = 0;
- while ((*yyp = *yyf) != '\0')
- {
- if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
- {
- yyp += yytnamerr (yyp, yyarg[yyi++]);
- yyf += 2;
- }
- else
- {
- yyp++;
- yyf++;
- }
- }
- }
- return yysize;
+ if (*yymsg_alloc < yysize)
+ {
+ *yymsg_alloc = 2 * yysize;
+ if (! (yysize <= *yymsg_alloc
+ && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
+ *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
+ return 1;
}
+
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ {
+ char *yyp = *yymsg;
+ int yyi = 0;
+ while ((*yyp = *yyformat) != '\0')
+ if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyformat += 2;
+ }
+ else
+ {
+ yyp++;
+ yyformat++;
+ }
+ }
+ return 0;
}
#endif /* YYERROR_VERBOSE */
-
/*-----------------------------------------------.
| Release the memory associated to this symbol. |
@@ -1078,66 +1119,66 @@ yydestruct (yymsg, yytype, yyvaluep, yylocationp, ctx)
{
case 3: /* "IDENT" */
-/* Line 1000 of yacc.c */
+/* Line 1391 of yacc.c */
#line 40 "libxlu_cfg_y.y"
{ free((yyvaluep->string)); };
-/* Line 1000 of yacc.c */
-#line 1087 "libxlu_cfg_y.c"
+/* Line 1391 of yacc.c */
+#line 1128 "libxlu_cfg_y.c"
break;
case 4: /* "STRING" */
-/* Line 1000 of yacc.c */
+/* Line 1391 of yacc.c */
#line 40 "libxlu_cfg_y.y"
{ free((yyvaluep->string)); };
-/* Line 1000 of yacc.c */
-#line 1096 "libxlu_cfg_y.c"
+/* Line 1391 of yacc.c */
+#line 1137 "libxlu_cfg_y.c"
break;
case 5: /* "NUMBER" */
-/* Line 1000 of yacc.c */
+/* Line 1391 of yacc.c */
#line 40 "libxlu_cfg_y.y"
{ free((yyvaluep->string)); };
-/* Line 1000 of yacc.c */
-#line 1105 "libxlu_cfg_y.c"
+/* Line 1391 of yacc.c */
+#line 1146 "libxlu_cfg_y.c"
break;
case 18: /* "value" */
-/* Line 1000 of yacc.c */
+/* Line 1391 of yacc.c */
#line 43 "libxlu_cfg_y.y"
{ xlu__cfg_set_free((yyvaluep->setting)); };
-/* Line 1000 of yacc.c */
-#line 1114 "libxlu_cfg_y.c"
+/* Line 1391 of yacc.c */
+#line 1155 "libxlu_cfg_y.c"
break;
case 19: /* "atom" */
-/* Line 1000 of yacc.c */
+/* Line 1391 of yacc.c */
#line 40 "libxlu_cfg_y.y"
{ free((yyvaluep->string)); };
-/* Line 1000 of yacc.c */
-#line 1123 "libxlu_cfg_y.c"
+/* Line 1391 of yacc.c */
+#line 1164 "libxlu_cfg_y.c"
break;
case 20: /* "valuelist" */
-/* Line 1000 of yacc.c */
+/* Line 1391 of yacc.c */
#line 43 "libxlu_cfg_y.y"
{ xlu__cfg_set_free((yyvaluep->setting)); };
-/* Line 1000 of yacc.c */
-#line 1132 "libxlu_cfg_y.c"
+/* Line 1391 of yacc.c */
+#line 1173 "libxlu_cfg_y.c"
break;
case 21: /* "values" */
-/* Line 1000 of yacc.c */
+/* Line 1391 of yacc.c */
#line 43 "libxlu_cfg_y.y"
{ xlu__cfg_set_free((yyvaluep->setting)); };
-/* Line 1000 of yacc.c */
-#line 1141 "libxlu_cfg_y.c"
+/* Line 1391 of yacc.c */
+#line 1182 "libxlu_cfg_y.c"
break;
default:
@@ -1145,6 +1186,7 @@ yydestruct (yymsg, yytype, yyvaluep, yylocationp, ctx)
}
}
+
/* Prevent warnings from -Wmissing-prototypes. */
#ifdef YYPARSE_PARAM
#if defined __STDC__ || defined __cplusplus
@@ -1161,12 +1203,9 @@ int yyparse ();
#endif /* ! YYPARSE_PARAM */
-
-
-
-/*-------------------------.
-| yyparse or yypush_parse. |
-`-------------------------*/
+/*----------.
+| yyparse. |
+`----------*/
#ifdef YYPARSE_PARAM
#if (defined __STDC__ || defined __C99__FUNC__ \
@@ -1230,7 +1269,7 @@ YYLTYPE yylloc;
YYLTYPE *yylsp;
/* The locations where the error started and ended. */
- YYLTYPE yyerror_range[2];
+ YYLTYPE yyerror_range[3];
YYSIZE_T yystacksize;
@@ -1277,7 +1316,7 @@ YYLTYPE yylloc;
yyvsp = yyvs;
yylsp = yyls;
-#if YYLTYPE_IS_TRIVIAL
+#if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
/* Initialize the default location before parsing starts. */
yylloc.first_line = yylloc.last_line = 1;
yylloc.first_column = yylloc.last_column = 1;
@@ -1379,7 +1418,7 @@ yybackup:
/* First try to decide what to do without reference to lookahead token. */
yyn = yypact[yystate];
- if (yyn == YYPACT_NINF)
+ if (yypact_value_is_default (yyn))
goto yydefault;
/* Not known => get a lookahead token if don't already have one. */
@@ -1410,8 +1449,8 @@ yybackup:
yyn = yytable[yyn];
if (yyn <= 0)
{
- if (yyn == 0 || yyn == YYTABLE_NINF)
- goto yyerrlab;
+ if (yytable_value_is_error (yyn))
+ goto yyerrlab;
yyn = -yyn;
goto yyreduce;
}
@@ -1467,80 +1506,91 @@ yyreduce:
{
case 9:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 57 "libxlu_cfg_y.y"
- { xlu__cfg_set_store(ctx,(yyvsp[(1) - (3)].string),(yyvsp[(3) -
(3)].setting),(yylsp[(3) - (3)]).first_line); ;}
+ { xlu__cfg_set_store(ctx,(yyvsp[(1) - (3)].string),(yyvsp[(3) -
(3)].setting),(yylsp[(3) - (3)]).first_line); }
break;
case 12:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 62 "libxlu_cfg_y.y"
- { (yyval.setting)= xlu__cfg_set_mk(ctx,1,(yyvsp[(1) - (1)].string)); ;}
+ { (yyval.setting)= xlu__cfg_set_mk(ctx,1,(yyvsp[(1) - (1)].string)); }
break;
case 13:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 63 "libxlu_cfg_y.y"
- { (yyval.setting)= (yyvsp[(3) - (4)].setting); ;}
+ { (yyval.setting)= (yyvsp[(3) - (4)].setting); }
break;
case 14:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 65 "libxlu_cfg_y.y"
- { (yyval.string)= (yyvsp[(1) - (1)].string); ;}
+ { (yyval.string)= (yyvsp[(1) - (1)].string); }
break;
case 15:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 66 "libxlu_cfg_y.y"
- { (yyval.string)= (yyvsp[(1) - (1)].string); ;}
+ { (yyval.string)= (yyvsp[(1) - (1)].string); }
break;
case 16:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 68 "libxlu_cfg_y.y"
- { (yyval.setting)= xlu__cfg_set_mk(ctx,0,0); ;}
+ { (yyval.setting)= xlu__cfg_set_mk(ctx,0,0); }
break;
case 17:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 69 "libxlu_cfg_y.y"
- { (yyval.setting)= (yyvsp[(1) - (1)].setting); ;}
+ { (yyval.setting)= (yyvsp[(1) - (1)].setting); }
break;
case 18:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 70 "libxlu_cfg_y.y"
- { (yyval.setting)= (yyvsp[(1) - (3)].setting); ;}
+ { (yyval.setting)= (yyvsp[(1) - (3)].setting); }
break;
case 19:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 72 "libxlu_cfg_y.y"
- { (yyval.setting)= xlu__cfg_set_mk(ctx,2,(yyvsp[(1) - (2)].string)); ;}
+ { (yyval.setting)= xlu__cfg_set_mk(ctx,2,(yyvsp[(1) - (2)].string)); }
break;
case 20:
-/* Line 1455 of yacc.c */
+/* Line 1806 of yacc.c */
#line 73 "libxlu_cfg_y.y"
- { xlu__cfg_set_add(ctx,(yyvsp[(1) - (5)].setting),(yyvsp[(4) -
(5)].string)); (yyval.setting)= (yyvsp[(1) - (5)].setting); ;}
+ { xlu__cfg_set_add(ctx,(yyvsp[(1) - (5)].setting),(yyvsp[(4) -
(5)].string)); (yyval.setting)= (yyvsp[(1) - (5)].setting); }
break;
-/* Line 1455 of yacc.c */
-#line 1542 "libxlu_cfg_y.c"
+/* Line 1806 of yacc.c */
+#line 1581 "libxlu_cfg_y.c"
default: break;
}
+ /* User semantic actions sometimes alter yychar, and that requires
+ that yytoken be updated with the new translation. We take the
+ approach of translating immediately before every use of yytoken.
+ One alternative is translating here after every semantic action,
+ but that translation would be missed if the semantic action invokes
+ YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
+ if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an
+ incorrect destructor might then be invoked immediately. In the
+ case of YYERROR or YYBACKUP, subsequent parser actions might lead
+ to an incorrect destructor call or verbose syntax error message
+ before the lookahead is translated. */
YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
YYPOPSTACK (yylen);
@@ -1569,6 +1619,10 @@ yyreduce:
| yyerrlab -- here on detecting error |
`------------------------------------*/
yyerrlab:
+ /* Make sure we have latest lookahead translation. See comments at
+ user semantic actions for why this is necessary. */
+ yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
+
/* If not already recovering from an error, report this error. */
if (!yyerrstatus)
{
@@ -1576,41 +1630,40 @@ yyerrlab:
#if ! YYERROR_VERBOSE
yyerror (&yylloc, ctx, YY_("syntax error"));
#else
+# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
+ yyssp, yytoken)
{
- YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
- if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
- {
- YYSIZE_T yyalloc = 2 * yysize;
- if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
- yyalloc = YYSTACK_ALLOC_MAXIMUM;
- if (yymsg != yymsgbuf)
- YYSTACK_FREE (yymsg);
- yymsg = (char *) YYSTACK_ALLOC (yyalloc);
- if (yymsg)
- yymsg_alloc = yyalloc;
- else
- {
- yymsg = yymsgbuf;
- yymsg_alloc = sizeof yymsgbuf;
- }
- }
-
- if (0 < yysize && yysize <= yymsg_alloc)
- {
- (void) yysyntax_error (yymsg, yystate, yychar);
- yyerror (&yylloc, ctx, yymsg);
- }
- else
- {
- yyerror (&yylloc, ctx, YY_("syntax error"));
- if (yysize != 0)
- goto yyexhaustedlab;
- }
+ char const *yymsgp = YY_("syntax error");
+ int yysyntax_error_status;
+ yysyntax_error_status = YYSYNTAX_ERROR;
+ if (yysyntax_error_status == 0)
+ yymsgp = yymsg;
+ else if (yysyntax_error_status == 1)
+ {
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
+ if (!yymsg)
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ yysyntax_error_status = 2;
+ }
+ else
+ {
+ yysyntax_error_status = YYSYNTAX_ERROR;
+ yymsgp = yymsg;
+ }
+ }
+ yyerror (&yylloc, ctx, yymsgp);
+ if (yysyntax_error_status == 2)
+ goto yyexhaustedlab;
}
+# undef YYSYNTAX_ERROR
#endif
}
- yyerror_range[0] = yylloc;
+ yyerror_range[1] = yylloc;
if (yyerrstatus == 3)
{
@@ -1647,7 +1700,7 @@ yyerrorlab:
if (/*CONSTCOND*/ 0)
goto yyerrorlab;
- yyerror_range[0] = yylsp[1-yylen];
+ yyerror_range[1] = yylsp[1-yylen];
/* Do not reclaim the symbols of the rule which action triggered
this YYERROR. */
YYPOPSTACK (yylen);
@@ -1666,7 +1719,7 @@ yyerrlab1:
for (;;)
{
yyn = yypact[yystate];
- if (yyn != YYPACT_NINF)
+ if (!yypact_value_is_default (yyn))
{
yyn += YYTERROR;
if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
@@ -1681,7 +1734,7 @@ yyerrlab1:
if (yyssp == yyss)
YYABORT;
- yyerror_range[0] = *yylsp;
+ yyerror_range[1] = *yylsp;
yydestruct ("Error: popping",
yystos[yystate], yyvsp, yylsp, ctx);
YYPOPSTACK (1);
@@ -1691,10 +1744,10 @@ yyerrlab1:
*++yyvsp = yylval;
- yyerror_range[1] = yylloc;
+ yyerror_range[2] = yylloc;
/* Using YYLLOC is tempting, but would change the location of
the lookahead. YYLOC is available though. */
- YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+ YYLLOC_DEFAULT (yyloc, yyerror_range, 2);
*++yylsp = yyloc;
/* Shift the error token. */
@@ -1730,8 +1783,13 @@ yyexhaustedlab:
yyreturn:
if (yychar != YYEMPTY)
- yydestruct ("Cleanup: discarding lookahead",
- yytoken, &yylval, &yylloc, ctx);
+ {
+ /* Make sure we have latest lookahead translation. See comments at
+ user semantic actions for why this is necessary. */
+ yytoken = YYTRANSLATE (yychar);
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval, &yylloc, ctx);
+ }
/* Do not reclaim the symbols of the rule which action triggered
this YYABORT or YYACCEPT. */
YYPOPSTACK (yylen);
diff --git a/tools/libxl/libxlu_cfg_y.h b/tools/libxl/libxlu_cfg_y.h
index e7b3d12..d7dfaf2 100644
--- a/tools/libxl/libxlu_cfg_y.h
+++ b/tools/libxl/libxlu_cfg_y.h
@@ -1,10 +1,8 @@
+/* A Bison parser, made by GNU Bison 2.5. */
-/* A Bison parser, made by GNU Bison 2.4.1. */
-
-/* Skeleton interface for Bison's Yacc-like parsers in C
+/* Bison interface for Yacc-like parsers in C
- Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
- Free Software Foundation, Inc.
+ Copyright (C) 1984, 1989-1990, 2000-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -52,7 +50,7 @@
typedef union YYSTYPE
{
-/* Line 1676 of yacc.c */
+/* Line 2068 of yacc.c */
#line 25 "libxlu_cfg_y.y"
char *string;
@@ -60,8 +58,8 @@ typedef union YYSTYPE
-/* Line 1676 of yacc.c */
-#line 65 "libxlu_cfg_y.h"
+/* Line 2068 of yacc.c */
+#line 63 "libxlu_cfg_y.h"
} YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
--
1.7.10.4
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