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kbuild: scripts/genksyms/lex.l: add %option noinput
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gcc 4.3 correctly determines that input() is unused and gives the
following warning:

<--  snip  -->

...
  HOSTCC  scripts/genksyms/lex.o
scripts/genksyms/lex.c:1487: warning: ‘input’ defined but not used
...

<--  snip  -->

Fix it by adding %option noinput to scripts/genksyms/lex.l and
regeneration of scripts/genksyms/lex.c_shipped.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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Adrian Bunk authored and Sam Ravnborg committed Jul 30, 2008
1 parent be2be1d commit 11ddad3
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Showing 2 changed files with 88 additions and 47 deletions.
133 changes: 86 additions & 47 deletions scripts/genksyms/lex.c_shipped
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Original file line number Diff line number Diff line change
Expand Up @@ -6,10 +6,19 @@

/* A lexical scanner generated by flex */

/* %not-for-header */

/* %if-c-only */
/* %if-not-reentrant */

/* %endif */
/* %endif */
/* %ok-for-header */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#define YY_FLEX_SUBMINOR_VERSION 33
#define YY_FLEX_SUBMINOR_VERSION 35
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif
Expand Down Expand Up @@ -47,7 +56,7 @@

/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */

#if __STDC_VERSION__ >= 199901L
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L

/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
* if you want the limit (max/min) macros for int types.
Expand All @@ -70,7 +79,6 @@ typedef int flex_int32_t;
typedef unsigned char flex_uint8_t;
typedef unsigned short int flex_uint16_t;
typedef unsigned int flex_uint32_t;
#endif /* ! C99 */

/* Limits of integral types. */
#ifndef INT8_MIN
Expand Down Expand Up @@ -101,6 +109,8 @@ typedef unsigned int flex_uint32_t;
#define UINT32_MAX (4294967295U)
#endif

#endif /* ! C99 */

#endif /* ! FLEXINT_H */

/* %endif */
Expand All @@ -115,11 +125,12 @@ typedef unsigned int flex_uint32_t;

#else /* ! __cplusplus */

#if __STDC__
/* C99 requires __STDC__ to be defined as 1. */
#if defined (__STDC__)

#define YY_USE_CONST

#endif /* __STDC__ */
#endif /* defined (__STDC__) */
#endif /* ! __cplusplus */

#ifdef YY_USE_CONST
Expand Down Expand Up @@ -218,14 +229,9 @@ extern FILE *yyin, *yyout;

#define unput(c) yyunput( c, (yytext_ptr) )

/* The following is because we cannot portably get our hands on size_t
* (without autoconf's help, which isn't available because we want
* flex-generated scanners to compile on their own).
*/

#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef unsigned int yy_size_t;
typedef size_t yy_size_t;
#endif

#ifndef YY_STRUCT_YY_BUFFER_STATE
Expand Down Expand Up @@ -401,7 +407,7 @@ void yyfree (void * );
/* %% [1.0] yytext/yyin/yyout/yy_state_type/yylineno etc. def's & init go here */
/* Begin user sect3 */

#define yywrap() 1
#define yywrap(n) 1
#define YY_SKIP_YYWRAP

#define FLEX_DEBUG
Expand Down Expand Up @@ -613,8 +619,8 @@ int yy_flex_debug = 1;

static yyconst flex_int16_t yy_rule_linenum[13] =
{ 0,
69, 70, 71, 74, 77, 78, 79, 85, 86, 87,
89, 92
71, 72, 73, 76, 79, 80, 81, 87, 88, 89,
91, 94
} ;

/* The intent behind this definition is that it'll catch
Expand Down Expand Up @@ -665,7 +671,8 @@ char *yytext;
quite so pedantic. */

/* We don't do multiple input files. */
#line 669 "scripts/genksyms/lex.c"
#define YY_NO_INPUT 1
#line 676 "scripts/genksyms/lex.c"

#define INITIAL 0
#define V2_TOKENS 1
Expand Down Expand Up @@ -695,9 +702,39 @@ static int yy_init_globals (void );
/* %endif */
/* %if-reentrant */
/* %endif */
/* %endif End reentrant structures and macros. */

/* Accessor methods to globals.
These are made visible to non-reentrant scanners for convenience. */

int yylex_destroy (void );

int yyget_debug (void );

void yyset_debug (int debug_flag );

YY_EXTRA_TYPE yyget_extra (void );

void yyset_extra (YY_EXTRA_TYPE user_defined );

FILE *yyget_in (void );

void yyset_in (FILE * in_str );

FILE *yyget_out (void );

void yyset_out (FILE * out_str );

int yyget_leng (void );

char *yyget_text (void );

int yyget_lineno (void );

void yyset_lineno (int line_number );

/* %if-bison-bridge */
/* %endif */
/* %endif End reentrant structures and macros. */

/* Macros after this point can all be overridden by user definitions in
* section 1.
Expand Down Expand Up @@ -756,7 +793,7 @@ static int input (void );
/* This used to be an fputs(), but since the string might contain NUL's,
* we now use fwrite().
*/
#define ECHO (void) fwrite( yytext, yyleng, 1, yyout )
#define ECHO fwrite( yytext, yyleng, 1, yyout )
/* %endif */
/* %if-c++-only C++ definition */
/* %endif */
Expand Down Expand Up @@ -881,12 +918,12 @@ YY_DECL
register int yy_act;

/* %% [7.0] user's declarations go here */
#line 65 "scripts/genksyms/lex.l"
#line 67 "scripts/genksyms/lex.l"



/* Keep track of our location in the original source files. */
#line 890 "scripts/genksyms/lex.c"
#line 927 "scripts/genksyms/lex.c"

if ( !(yy_init) )
{
Expand Down Expand Up @@ -1004,42 +1041,42 @@ do_action: /* This label is used only to access EOF actions. */
case 1:
/* rule 1 can match eol */
YY_RULE_SETUP
#line 69 "scripts/genksyms/lex.l"
#line 71 "scripts/genksyms/lex.l"
return FILENAME;
YY_BREAK
case 2:
/* rule 2 can match eol */
YY_RULE_SETUP
#line 70 "scripts/genksyms/lex.l"
#line 72 "scripts/genksyms/lex.l"
cur_line++;
YY_BREAK
case 3:
/* rule 3 can match eol */
YY_RULE_SETUP
#line 71 "scripts/genksyms/lex.l"
#line 73 "scripts/genksyms/lex.l"
cur_line++;
YY_BREAK
/* Ignore all other whitespace. */
case 4:
YY_RULE_SETUP
#line 74 "scripts/genksyms/lex.l"
#line 76 "scripts/genksyms/lex.l"
;
YY_BREAK
case 5:
/* rule 5 can match eol */
YY_RULE_SETUP
#line 77 "scripts/genksyms/lex.l"
#line 79 "scripts/genksyms/lex.l"
return STRING;
YY_BREAK
case 6:
/* rule 6 can match eol */
YY_RULE_SETUP
#line 78 "scripts/genksyms/lex.l"
#line 80 "scripts/genksyms/lex.l"
return CHAR;
YY_BREAK
case 7:
YY_RULE_SETUP
#line 79 "scripts/genksyms/lex.l"
#line 81 "scripts/genksyms/lex.l"
return IDENT;
YY_BREAK
/* The Pedant requires that the other C multi-character tokens be
Expand All @@ -1048,36 +1085,36 @@ return IDENT;
around them properly. */
case 8:
YY_RULE_SETUP
#line 85 "scripts/genksyms/lex.l"
#line 87 "scripts/genksyms/lex.l"
return OTHER;
YY_BREAK
case 9:
YY_RULE_SETUP
#line 86 "scripts/genksyms/lex.l"
#line 88 "scripts/genksyms/lex.l"
return INT;
YY_BREAK
case 10:
YY_RULE_SETUP
#line 87 "scripts/genksyms/lex.l"
#line 89 "scripts/genksyms/lex.l"
return REAL;
YY_BREAK
case 11:
YY_RULE_SETUP
#line 89 "scripts/genksyms/lex.l"
#line 91 "scripts/genksyms/lex.l"
return DOTS;
YY_BREAK
/* All other tokens are single characters. */
case 12:
YY_RULE_SETUP
#line 92 "scripts/genksyms/lex.l"
#line 94 "scripts/genksyms/lex.l"
return yytext[0];
YY_BREAK
case 13:
YY_RULE_SETUP
#line 95 "scripts/genksyms/lex.l"
#line 97 "scripts/genksyms/lex.l"
ECHO;
YY_BREAK
#line 1081 "scripts/genksyms/lex.c"
#line 1118 "scripts/genksyms/lex.c"
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(V2_TOKENS):
yyterminate();
Expand Down Expand Up @@ -1346,6 +1383,14 @@ static int yy_get_next_buffer (void)
else
ret_val = EOB_ACT_CONTINUE_SCAN;

if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
/* Extend the array by 50%, plus the number we really need. */
yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size );
if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
}

(yy_n_chars) += number_to_move;
YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
Expand Down Expand Up @@ -1851,7 +1896,9 @@ static void yyensure_buffer_stack (void)
(yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
(num_to_alloc * sizeof(struct yy_buffer_state*)
);

if ( ! (yy_buffer_stack) )
YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );

memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));

(yy_buffer_stack_max) = num_to_alloc;
Expand All @@ -1869,6 +1916,8 @@ static void yyensure_buffer_stack (void)
((yy_buffer_stack),
num_to_alloc * sizeof(struct yy_buffer_state*)
);
if ( ! (yy_buffer_stack) )
YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );

/* zero only the new slots.*/
memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
Expand Down Expand Up @@ -2092,7 +2141,7 @@ void yyset_debug (int bdebug )
/* %if-reentrant */
/* %if-bison-bridge */
/* %endif */
/* %endif */
/* %endif if-c-only */

/* %if-c-only */
static int yy_init_globals (void)
Expand Down Expand Up @@ -2124,13 +2173,9 @@ static int yy_init_globals (void)
}
/* %endif */

/* %if-c-or-c++ */
/* %if-c-only */
/* %if-c-only SNIP! this currently causes conflicts with the c++ scanner */
/* yylex_destroy is for both reentrant and non-reentrant scanners. */
int yylex_destroy (void)
/* %endif */
/* %if-c++-only */
/* %endif */
{

/* Pop the buffer stack, destroying each element. */
Expand All @@ -2144,19 +2189,13 @@ int yylex_destroy (void)
yyfree((yy_buffer_stack) );
(yy_buffer_stack) = NULL;

/* %if-c++-only */
/* %endif */

/* %if-c-only */

/* Reset the globals. This is important in a non-reentrant scanner so the next time
* yylex() is called, initialization will occur. */
yy_init_globals( );

/* %if-reentrant */
/* %endif */
return 0;
/* %endif */
}
/* %endif */

Expand Down Expand Up @@ -2213,7 +2252,7 @@ void yyfree (void * ptr )

/* %ok-for-header */

#line 95 "scripts/genksyms/lex.l"
#line 97 "scripts/genksyms/lex.l"



Expand Down
2 changes: 2 additions & 0 deletions scripts/genksyms/lex.l
View file
Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,8 @@ MC_TOKEN ([~%^&*+=|<>/-]=)|(&&)|("||")|(->)|(<<)|(>>)
/* We don't do multiple input files. */
%option noyywrap
%option noinput
%%
Expand Down

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