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cpplib.h (struct cpp_name): Now struct cpp_string.

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* cpplib.h (struct cpp_name): Now struct cpp_string.
	(CPP_INT, CPP_FLOAT, CPP_NUMBER, CPP_COMMENT,
	CPP_HEADER_NAME): Change to type S.
	(struct cpp_token): Rename 'name' field to 'str'.  Add 'node'
	field, a cpp_hashnode *.  All references to val.name updated
	to use val.str or val.node as appropriate.
	(struct cpp_reader): Add spec_nodes field.
	(cpp_idcmp): Now cpp_ideq; takes a token * and a char *.

	* cpphash.h (struct spec_nodes): New.
	(enum spell_type): Reorder.  Only SPELL_STRING tokens use
	val.str.  All references to 'spelling > SPELL_NONE' updated to
	match.

	(CPP_IN_SYSTEM_HEADER): Check pfile->buffer and
	pfile->buffer->inc are not NULL before dereferencing them.

	* cpplex.c (parse_name): Take a pointer to the current token,
	plus current position and limit as args; return the new
	position; don't copy the text of a name into the string
	buffer, instead call cpp_lookup and store the node pointer.
	If extending a token, copy out the text of the old into a
	scratch buffer, append the new, look that up and store the new
	node pointer.  Inline.
	(maybe_paste_with_next): If the result of paste is a NAME,
	then look up the pasted text and store its node pointer.
	(lex_line): Adjust for new parse_name interface.
	Check for L"str", L'str' using spec_nodes->n_L.
	(spell_token): SPELL_IDENT tokens have their spelling in
	val.node->name.  Handle SPELL_STRING tokens that don't have
	string delimiters.
	(_cpp_expand_name_space,
	(can_paste): Check for L ## "str" using spec_nodes->n_L.
	(cpp_get_token, special_symbol): No need to call cpp_lookup.
	(cpp_idcmp): Now cpp_ideq; take a token * and a const char *;
	return 1=equal 0=not, not a tristate.

	* cpphash.c (var_args_str): Delete.
	(find_param): Compare node fields directly.
	(is__va_args__): Use CPP_PEDANTIC.  Just compare
	token->val.node with spec_nodes->n__VA_ARGS__.
	(dump_funlike_macro): Don't use var_args_str.

	* cpplib.c (_cpp_check_directive): Just walk through
	spec_nodes->dirs comparing pointers.
	(get_define_node, do_pragma_poison, detect_if_not_defined,
	parse_ifdef): The identifier has already been looked up.
	(do_ifdef, do_ifndef): parse_ifdef won't return a poisoned
	node.
	(do_if): Only call detect_if_not_defined at beginning of file.
	(_cpp_parse_assertion): Only copy string pointers for
	SPELL_STRING tokens.
	(pragma_dispatch): Take a node pointer and examine its name
	field.
	(_cpp_init_stacks): Also initialize the spec_nodes structure.

	* cppinit.c (cpp_reader_init): Call _cpp_init_stacks after
	_cpp_init_macros.
	(cpp_cleanup): Free pfile->spec_nodes.  Call _cpp_cleanup_* in
	reverse order from the corresponding _cpp_init_* routines.

	* cppexp.c (parse_number, parse_charconst, parse_defined,
	lex): Check val.node->type instead of calling cpp_defined.
	Use spec_nodes entries where appropriate.

	* fix-header.c, scan-decls.c: Update for interface changes.

From-SVN: r34926
This commit is contained in:
Zack Weinberg 2000-07-08 19:00:39 +00:00 committed by Zack Weinberg
parent ffc14f3159
commit bfb9dc7faa
10 changed files with 334 additions and 265 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

69
gcc/ChangeLog
View File

@ -1,3 +1,72 @@
2000-07-08 Zack Weinberg <zack@wolery.cumb.org>
* cpplib.h (struct cpp_name): Now struct cpp_string.
(CPP_INT, CPP_FLOAT, CPP_NUMBER, CPP_COMMENT,
CPP_HEADER_NAME): Change to type S.
(struct cpp_token): Rename 'name' field to 'str'. Add 'node'
field, a cpp_hashnode *. All references to val.name updated
to use val.str or val.node as appropriate.
(struct cpp_reader): Add spec_nodes field.
(cpp_idcmp): Now cpp_ideq; takes a token * and a char *.
* cpphash.h (struct spec_nodes): New.
(enum spell_type): Reorder. Only SPELL_STRING tokens use
val.str. All references to 'spelling > SPELL_NONE' updated to
match.
(CPP_IN_SYSTEM_HEADER): Check pfile->buffer and
pfile->buffer->inc are not NULL before dereferencing them.
* cpplex.c (parse_name): Take a pointer to the current token,
plus current position and limit as args; return the new
position; don't copy the text of a name into the string
buffer, instead call cpp_lookup and store the node pointer.
If extending a token, copy out the text of the old into a
scratch buffer, append the new, look that up and store the new
node pointer. Inline.
(maybe_paste_with_next): If the result of paste is a NAME,
then look up the pasted text and store its node pointer.
(lex_line): Adjust for new parse_name interface.
Check for L"str", L'str' using spec_nodes->n_L.
(spell_token): SPELL_IDENT tokens have their spelling in
val.node->name. Handle SPELL_STRING tokens that don't have
string delimiters.
(_cpp_expand_name_space,
(can_paste): Check for L ## "str" using spec_nodes->n_L.
(cpp_get_token, special_symbol): No need to call cpp_lookup.
(cpp_idcmp): Now cpp_ideq; take a token * and a const char *;
return 1=equal 0=not, not a tristate.
* cpphash.c (var_args_str): Delete.
(find_param): Compare node fields directly.
(is__va_args__): Use CPP_PEDANTIC. Just compare
token->val.node with spec_nodes->n__VA_ARGS__.
(dump_funlike_macro): Don't use var_args_str.
* cpplib.c (_cpp_check_directive): Just walk through
spec_nodes->dirs comparing pointers.
(get_define_node, do_pragma_poison, detect_if_not_defined,
parse_ifdef): The identifier has already been looked up.
(do_ifdef, do_ifndef): parse_ifdef won't return a poisoned
node.
(do_if): Only call detect_if_not_defined at beginning of file.
(_cpp_parse_assertion): Only copy string pointers for
SPELL_STRING tokens.
(pragma_dispatch): Take a node pointer and examine its name
field.
(_cpp_init_stacks): Also initialize the spec_nodes structure.
* cppinit.c (cpp_reader_init): Call _cpp_init_stacks after
_cpp_init_macros.
(cpp_cleanup): Free pfile->spec_nodes. Call _cpp_cleanup_* in
reverse order from the corresponding _cpp_init_* routines.
* cppexp.c (parse_number, parse_charconst, parse_defined,
lex): Check val.node->type instead of calling cpp_defined.
Use spec_nodes entries where appropriate.
* fix-header.c, scan-decls.c: Update for interface changes.
2000-07-08 Geoffrey Keating <geoffk@cygnus.com>
* config/rs6000/rs6000.c (rs6000_emit_move): Fix conditions for

23
gcc/cppexp.c
View File

@ -137,10 +137,10 @@ parse_number (pfile, tok)
const cpp_token *tok;
{
struct op op;
const U_CHAR *start = tok->val.name.text;
const U_CHAR *end = start + tok->val.name.len;
const U_CHAR *start = tok->val.str.text;
const U_CHAR *end = start + tok->val.str.len;
const U_CHAR *p = start;
int c, i, nsuff;
int c = 0, i, nsuff;
unsigned HOST_WIDEST_INT n = 0, nd, MAX_over_base;
int base = 10;
int overflow = 0;
@ -261,8 +261,8 @@ parse_charconst (pfile, tok)
int num_bits;
unsigned int width = MAX_CHAR_TYPE_SIZE, mask = MAX_CHAR_TYPE_MASK;
int max_chars;
const U_CHAR *ptr = tok->val.name.text;
const U_CHAR *end = ptr + tok->val.name.len;
const U_CHAR *ptr = tok->val.str.text;
const U_CHAR *end = ptr + tok->val.str.len;
int c = -1;
@ -304,8 +304,7 @@ parse_charconst (pfile, tok)
/* If char type is signed, sign-extend the constant. */
num_bits = num_chars * width;
if (cpp_defined (pfile, U"__CHAR_UNSIGNED__",
sizeof ("__CHAR_UNSIGNED__")-1)
if (pfile->spec_nodes->n__CHAR_UNSIGNED__->type != T_VOID
|| ((result >> (num_bits - 1)) & 1) == 0)
op.value = result & ((unsigned HOST_WIDEST_INT) ~0
>> (HOST_BITS_PER_WIDEST_INT - num_bits));
@ -345,9 +344,12 @@ parse_defined (pfile)
if (paren && _cpp_get_raw_token (pfile)->type != CPP_CLOSE_PAREN)
SYNTAX_ERROR ("missing close paren after \"defined\"");
if (tok->val.node->type == T_POISON)
SYNTAX_ERROR2 ("attempt to use poisoned \"%s\"", tok->val.node->name);
op.value = tok->val.node->type != T_VOID;
op.unsignedp = 0;
op.op = CPP_INT;
op.value = cpp_defined (pfile, tok->val.name.text, tok->val.name.len);
return op;
syntax_error:
@ -419,7 +421,7 @@ lex (pfile, skip_evaluation)
SYNTAX_ERROR2 ("invalid character '\\%03o' in #if", tok->val.aux);
case CPP_NAME:
if (!cpp_idcmp (tok->val.name.text, tok->val.name.len, "defined"))
if (tok->val.node == pfile->spec_nodes->n_defined)
return parse_defined (pfile);
op.op = CPP_INT;
@ -427,8 +429,7 @@ lex (pfile, skip_evaluation)
op.value = 0;
if (CPP_OPTION (pfile, warn_undef) && !skip_evaluation)
cpp_warning (pfile, "\"%.*s\" is not defined",
(int) tok->val.name.len, tok->val.name.text);
cpp_warning (pfile, "\"%s\" is not defined", tok->val.node->name);
return op;
case CPP_HASH:

58
gcc/cpphash.c
View File

@ -61,8 +61,6 @@ static int save_expansion PARAMS((cpp_reader *, cpp_toklist *,
static unsigned int find_param PARAMS ((const cpp_token *,
const cpp_token *));
static const unsigned char var_args_str[] = "__VA_ARGS__";
/* Calculate hash of a string of length LEN. */
unsigned int
_cpp_calc_hash (str, len)
@ -131,7 +129,7 @@ cpp_lookup (pfile, name, len)
p = obstack_alloc (pfile->hash_ob, sizeof (cpp_hashnode) + len);
new = (cpp_hashnode *)p;
p += offsetof (cpp_hashnode, name);
new->type = T_VOID;
new->length = len;
new->hash = hash;
@ -189,9 +187,7 @@ find_param (first, token)
if (first->type == CPP_NAME)
{
param++;
if (first->val.name.len == token->val.name.len
&& !memcmp (first->val.name.text, token->val.name.text,
token->val.name.len))
if (first->val.node == token->val.node)
return param;
}
@ -206,15 +202,13 @@ is__va_args__ (pfile, token)
cpp_reader *pfile;
const cpp_token *token;
{
if (!CPP_OPTION (pfile, pedantic)
|| token->val.name.len != sizeof (var_args_str) - 1
|| ustrncmp (token->val.name.text, var_args_str,
sizeof (var_args_str) - 1))
if (!CPP_PEDANTIC (pfile)
|| token->val.node != pfile->spec_nodes->n__VA_ARGS__)
return 0;
cpp_pedwarn_with_line (pfile, token->line, token->col,
"\"%s\" is only valid in the replacement list of a function-like macro",
var_args_str);
token->val.node->name);
return 1;
}
@ -257,7 +251,7 @@ count_params (pfile, first, list)
if (is__va_args__ (pfile, token))
goto out;
params_len += token->val.name.len + 1;
params_len += token->val.node->length + 1;
prev_ident = 1;
list->paramc++;
@ -265,9 +259,8 @@ count_params (pfile, first, list)
if (find_param (first, token))
{
cpp_error_with_line (pfile, token->line, token->col,
"duplicate macro parameter \"%.*s\"",
(int) token->val.name.len,
token->val.name.text);
"duplicate macro parameter \"%s\"",
token->val.node->name);
goto out;
}
break;
@ -297,19 +290,16 @@ count_params (pfile, first, list)
case CPP_ELLIPSIS:
/* Convert ISO-style var_args to named varargs by changing
the ellipsis into an identifier with name __VA_ARGS__.
This simplifies other handling. We can safely have its
text outside list->namebuf because there is no reason to
extend the size of the list's namebuf (and thus change
the pointer) in do_define. */
This simplifies other handling. */
if (!prev_ident)
{
cpp_token *tok = (cpp_token *) token;
tok->type = CPP_NAME;
tok->val.name.len = sizeof (var_args_str) - 1;
tok->val.name.text = var_args_str; /* Safe. */
tok->val.node = pfile->spec_nodes->n__VA_ARGS__;
list->paramc++;
params_len += tok->val.node->length + 1;
if (CPP_PEDANTIC (pfile) && ! CPP_OPTION (pfile, c99))
cpp_pedwarn (pfile,
"C89 does not permit anon varargs macros");
@ -344,9 +334,9 @@ count_params (pfile, first, list)
for (temp = first; temp <= token; temp++)
if (temp->type == CPP_NAME)
{
memcpy (buf, temp->val.name.text, temp->val.name.len);
buf += temp->val.name.len;
*buf++ = '\0';
/* copy null too */
memcpy (buf, temp->val.node->name, temp->val.node->length + 1);
buf += temp->val.node->length + 1;
}
}
@ -493,8 +483,8 @@ save_expansion (pfile, list, first, first_param)
return 1;
}
ntokens++;
if (token_spellings[token->type].type > SPELL_NONE)
len += token->val.name.len;
if (token_spellings[token->type].type == SPELL_STRING)
len += token->val.str.len;
}
/* Allocate space to hold the tokens. Empty expansions are stored
@ -553,11 +543,11 @@ save_expansion (pfile, list, first, first_param)
/* Copy the token. */
*dest = *token;
if (token_spellings[token->type].type > SPELL_NONE)
if (token_spellings[token->type].type == SPELL_STRING)
{
memcpy (buf, token->val.name.text, token->val.name.len);
dest->val.name.text = buf;
buf += dest->val.name.len;
memcpy (buf, token->val.str.text, token->val.str.len);
dest->val.str.text = buf;
buf += dest->val.str.len;
}
dest++;
}
@ -664,9 +654,9 @@ dump_funlike_macro (pfile, node)
CPP_PUTS(pfile, ", ", 2);
else if (list->flags & VAR_ARGS)
{
if (!ustrcmp (param, var_args_str))
pfile->limit -= sizeof (var_args_str) - 1;
CPP_PUTS (pfile, "...", 3);
if (!ustrcmp (param, U"__VA_ARGS__"))
pfile->limit -= sizeof (U"__VA_ARGS__") - 1;
CPP_PUTS_Q (pfile, "...", 3);
}
param += len + 1;
}

26
gcc/cpphash.h
View File

@ -25,15 +25,15 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
typedef unsigned char U_CHAR;
#define U (const U_CHAR *) /* Intended use: U"string" */
/* Order here matters. Those beyond SPELL_NONE store their spelling
in the token list, and it's length in the token->val.name.len. */
/* Tokens with SPELL_STRING store their spelling in the token list,
and it's length in the token->val.name.len. */
enum spell_type
{
SPELL_OPERATOR = 0,
SPELL_CHAR,
SPELL_NONE,
SPELL_IDENT,
SPELL_STRING
SPELL_STRING,
SPELL_NONE
};
struct token_spelling
@ -116,6 +116,20 @@ struct include_file
time_t date; /* modification date of file, if known */
};
/* Special nodes - identifiers with predefined significance.
Note that the array length of dirs[] must be kept in sync with
cpplib.c's dtable[]. */
struct spec_nodes
{
cpp_hashnode *n_L; /* L"str" */
cpp_hashnode *n_defined; /* #if defined */
cpp_hashnode *n__STRICT_ANSI__; /* STDC_0_IN_SYSTEM_HEADERS */
cpp_hashnode *n__CHAR_UNSIGNED__; /* plain char is unsigned */
cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */
cpp_hashnode *dirs[19]; /* 19 directives counting #sccs */
};
/* The cmacro works like this: If it's NULL, the file is to be
included again. If it's NEVER_REREAD, the file is never to be
included again. Otherwise it is a macro hashnode, and the file is
@ -173,7 +187,9 @@ extern unsigned char _cpp_IStable[256];
#define CPP_PREV_BUFFER(BUFFER) ((BUFFER)->prev)
#define CPP_PRINT_DEPS(PFILE) CPP_OPTION (PFILE, print_deps)
#define CPP_TRADITIONAL(PFILE) CPP_OPTION (PFILE, traditional)
#define CPP_IN_SYSTEM_HEADER(PFILE) (CPP_BUFFER (PFILE)->inc->sysp)
#define CPP_IN_SYSTEM_HEADER(PFILE) \
(CPP_BUFFER (PFILE) && CPP_BUFFER (PFILE)->inc \
&& CPP_BUFFER (PFILE)->inc->sysp)
#define CPP_PEDANTIC(PF) \
(CPP_OPTION (PF, pedantic) && !CPP_IN_SYSTEM_HEADER (PF))
#define CPP_WTRADITIONAL(PF) \

9
gcc/cppinit.c
View File

@ -421,8 +421,8 @@ cpp_reader_init (pfile)
CPP_OPTION (pfile, pending) =
(struct cpp_pending *) xcalloc (1, sizeof (struct cpp_pending));
_cpp_init_stacks (pfile);
_cpp_init_macros (pfile);
_cpp_init_stacks (pfile);
_cpp_init_includes (pfile);
}
@ -469,10 +469,13 @@ cpp_cleanup (pfile)
if (pfile->deps)
deps_free (pfile->deps);
if (pfile->spec_nodes)
free (pfile->spec_nodes);
_cpp_free_temp_tokens (pfile);
_cpp_cleanup_includes (pfile);
_cpp_cleanup_stacks (pfile);
_cpp_cleanup_macros (pfile);
_cpp_cleanup_includes (pfile);
_cpp_free_temp_tokens (pfile);
}

242
gcc/cpplex.c
View File

@ -73,8 +73,9 @@ static const unsigned char *backslash_start PARAMS ((cpp_reader *,
static int skip_block_comment PARAMS ((cpp_reader *));
static int skip_line_comment PARAMS ((cpp_reader *));
static void skip_whitespace PARAMS ((cpp_reader *, int));
static void parse_name PARAMS ((cpp_reader *, cpp_toklist *, cpp_name *));
static void parse_number PARAMS ((cpp_reader *, cpp_toklist *, cpp_name *));
static const U_CHAR *parse_name PARAMS ((cpp_reader *, cpp_token *,
const U_CHAR *, const U_CHAR *));
static void parse_number PARAMS ((cpp_reader *, cpp_toklist *, cpp_string *));
static void parse_string PARAMS ((cpp_reader *, cpp_toklist *, cpp_token *,
unsigned int));
static int trigraph_ok PARAMS ((cpp_reader *, const unsigned char *));
@ -111,9 +112,9 @@ static void release_temp_tokens PARAMS ((cpp_reader *));
static U_CHAR * quote_string PARAMS ((U_CHAR *, const U_CHAR *, unsigned int));
static void process_directive PARAMS ((cpp_reader *, const cpp_token *));
#define INIT_TOKEN_NAME(list, token) \
do {(token)->val.name.len = 0; \
(token)->val.name.text = (list)->namebuf + (list)->name_used; \
#define INIT_TOKEN_STR(list, token) \
do {(token)->val.str.len = 0; \
(token)->val.str.text = (list)->namebuf + (list)->name_used; \
} while (0)
#define VALID_SIGN(c, prevc) \
@ -148,8 +149,12 @@ static void process_directive PARAMS ((cpp_reader *, const cpp_token *));
/* An upper bound on the number of bytes needed to spell a token,
including preceding whitespace. */
#define TOKEN_LEN(token) (5 + (token_spellings[(token)->type].type > \
SPELL_NONE ? (token)->val.name.len: 0))
#define TOKEN_SPELL(token) token_spellings[(token)->type].type
#define TOKEN_LEN(token) (5 + (TOKEN_SPELL(token) == SPELL_STRING \
? (token)->val.str.len \
: (TOKEN_SPELL(token) == SPELL_IDENT \
? (token)->val.node->length \
: 0)))
#define T(e, s) {SPELL_OPERATOR, (const U_CHAR *) s},
#define I(e, s) {SPELL_IDENT, s},
@ -443,8 +448,8 @@ _cpp_glue_header_name (pfile)
hdr = get_temp_token (pfile);
hdr->type = CPP_HEADER_NAME;
hdr->flags = 0;
hdr->val.name.text = buf;
hdr->val.name.len = len;
hdr->val.str.text = buf;
hdr->val.str.len = len;
return hdr;
}
@ -469,8 +474,8 @@ _cpp_expand_name_space (list, len)
unsigned int i;
for (i = 0; i < list->tokens_used; i++)
if (token_spellings[list->tokens[i].type].type > SPELL_NONE)
list->tokens[i].val.name.text += (list->namebuf - old_namebuf);
if (token_spellings[list->tokens[i].type].type == SPELL_STRING)
list->tokens[i].val.str.text += (list->namebuf - old_namebuf);
}
}
@ -583,10 +588,11 @@ _cpp_equiv_tokens (a, b)
case SPELL_NONE:
return a->val.aux == b->val.aux; /* arg_no or character. */
case SPELL_IDENT:
return a->val.node == b->val.node;
case SPELL_STRING:
return (a->val.name.len == b->val.name.len
&& !memcmp (a->val.name.text, b->val.name.text,
a->val.name.len));
return (a->val.str.len == b->val.str.len
&& !memcmp (a->val.str.text, b->val.str.text,
a->val.str.len));
}
return 0;
@ -611,34 +617,19 @@ _cpp_equiv_toklists (a, b)
}
/* Utility routine:
Compares, in the manner of strcmp(3), the token beginning at TOKEN
and extending for LEN characters to the NUL-terminated string
STRING. Typical usage:
if (! cpp_idcmp (pfile->token_buffer + here, CPP_WRITTEN (pfile) - here,
"inline"))
{ ... }
*/
Compares, the token TOKEN to the NUL-terminated string STRING.
TOKEN must be a CPP_NAME. Returns 1 for equal, 0 for unequal. */
int
cpp_idcmp (token, len, string)
const U_CHAR *token;
size_t len;
cpp_ideq (token, string)
const cpp_token *token;
const char *string;
{
size_t len2 = strlen (string);
int r;
if ((r = memcmp (token, string, MIN (len, len2))))
return r;
/* The longer of the two strings sorts after the shorter. */
if (len == len2)
if (token->type != CPP_NAME)
return 0;
else if (len < len2)
return -1;
else
return 1;
return !ustrcmp (token->val.node->name, (const U_CHAR *)string);
}
/* Lexing algorithm.
@ -965,51 +956,43 @@ skip_whitespace (pfile, in_directive)
}
/* Parse (append) an identifier. */
static void
parse_name (pfile, list, name)
static inline const U_CHAR *
parse_name (pfile, tok, cur, rlimit)
cpp_reader *pfile;
cpp_toklist *list;
cpp_name *name;
cpp_token *tok;
const U_CHAR *cur, *rlimit;
{
const unsigned char *name_limit;
unsigned char *namebuf;
cpp_buffer *buffer = pfile->buffer;
register const unsigned char *cur = buffer->cur;
const U_CHAR *name = cur;
unsigned int len;
expanded:
name_limit = list->namebuf + list->name_cap;
namebuf = list->namebuf + list->name_used;
for (; cur < buffer->rlimit && namebuf < name_limit; )
while (cur < rlimit)
{
unsigned char c = *namebuf = *cur; /* Copy a single char. */
if (! is_idchar(c))
goto out;
namebuf++;
cur++;
if (! is_idchar (*cur))
break;
/* $ is not a legal identifier character in the standard, but is
commonly accepted as an extension. Don't warn about it in
skipped conditional blocks. */
if (c == '$' && CPP_PEDANTIC (pfile) && ! pfile->skipping)
if (*cur == '$' && CPP_PEDANTIC (pfile) && ! pfile->skipping)
{
buffer->cur = cur;
CPP_BUFFER (pfile)->cur = cur;
cpp_pedwarn (pfile, "'$' character in identifier");
}
cur++;
}
len = cur - name;
/* Run out of name space? */
if (cur < buffer->rlimit)
if (tok->val.node)
{
list->name_used = namebuf - list->namebuf;
auto_expand_name_space (list);
goto expanded;
unsigned int oldlen = tok->val.node->length;
U_CHAR *newname = alloca (oldlen + len);
memcpy (newname, tok->val.node->name, oldlen);
memcpy (newname + oldlen, name, len);
len += oldlen;
name = newname;
}
out:
buffer->cur = cur;
name->len = namebuf - name->text;
list->name_used = namebuf - list->namebuf;
tok->val.node = cpp_lookup (pfile, name, len);
return cur;
}
/* Parse (append) a number. */
@ -1017,7 +1000,7 @@ static void
parse_number (pfile, list, name)
cpp_reader *pfile;
cpp_toklist *list;
cpp_name *name;
cpp_string *name;
{
const unsigned char *name_limit;
unsigned char *namebuf;
@ -1057,7 +1040,7 @@ parse_number (pfile, list, name)
}
/* Places a string terminated by an unescaped TERMINATOR into a
cpp_name, which should be expandable and thus at the top of the
cpp_string, which should be expandable and thus at the top of the
list's stack. Handles embedded trigraphs, if necessary, and
escaped newlines.
@ -1073,7 +1056,7 @@ parse_string (pfile, list, token, terminator)
unsigned int terminator;
{
cpp_buffer *buffer = pfile->buffer;
cpp_name *name = &token->val.name;
cpp_string *name = &token->val.str;
register const unsigned char *cur = buffer->cur;
const unsigned char *name_limit;
unsigned char *namebuf;
@ -1221,9 +1204,9 @@ save_comment (list, token, from, len, type)
if (list->name_used + len > list->name_cap)
_cpp_expand_name_space (list, len);
INIT_TOKEN_NAME (list, token);
INIT_TOKEN_STR (list, token);
token->type = CPP_COMMENT;
token->val.name.len = len;
token->val.str.len = len;
buffer = list->namebuf + list->name_used;
list->name_used += len;
@ -1326,21 +1309,21 @@ lex_line (pfile, list)
prev_dot = PREV_TOKEN_TYPE == CPP_DOT && IMMED_TOKEN ();
if (prev_dot)
cur_token--;
INIT_TOKEN_NAME (list, cur_token);
INIT_TOKEN_STR (list, cur_token);
/* Prepend an immediately previous CPP_DOT token. */
if (prev_dot)
{
if (list->name_cap == list->name_used)
auto_expand_name_space (list);
cur_token->val.name.len = 1;
cur_token->val.str.len = 1;
list->namebuf[list->name_used++] = '.';
}
continue_number:
cur_token->type = CPP_NUMBER; /* Before parse_number. */
buffer->cur = cur;
parse_number (pfile, list, &cur_token->val.name);
parse_number (pfile, list, &cur_token->val.str);
cur = buffer->cur;
}
/* Check for # 123 form of #line. */
@ -1364,13 +1347,11 @@ lex_line (pfile, list)
case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
case 'Y': case 'Z':
cur--; /* Backup character. */
INIT_TOKEN_NAME (list, cur_token);
cur_token->val.node = 0;
cur_token->type = CPP_NAME; /* Identifier, macro etc. */
continue_name:
buffer->cur = cur;
parse_name (pfile, list, &cur_token->val.name);
cur = buffer->cur;
cur = parse_name (pfile, cur_token, cur, buffer->rlimit);
if (MIGHT_BE_DIRECTIVE ())
list->directive = _cpp_check_directive (pfile, cur_token,
@ -1395,18 +1376,15 @@ lex_line (pfile, list)
cur_token->type = c == '\'' ? CPP_CHAR : CPP_STRING;
/* Do we have a wide string? */
if (cur_token[-1].type == CPP_NAME && IMMED_TOKEN ()
&& cur_token[-1].val.name.len == 1
&& cur_token[-1].val.name.text[0] == 'L'
&& cur_token[-1].val.node == pfile->spec_nodes->n_L
&& !CPP_TRADITIONAL (pfile))
{
/* No need for 'L' any more. */
list->name_used--;
(--cur_token)->type = (c == '\'' ? CPP_WCHAR : CPP_WSTRING);
}
do_parse_string:
/* Here c is one of ' " or >. */
INIT_TOKEN_NAME (list, cur_token);
INIT_TOKEN_STR (list, cur_token);
buffer->cur = cur;
parse_string (pfile, list, cur_token, c);
cur = buffer->cur;
@ -1797,7 +1775,7 @@ lex_line (pfile, list)
{
if (first[1].type == CPP_NAME)
cpp_error (pfile, "invalid preprocessing directive #%.*s",
(int) first[1].val.name.len, first[1].val.name.text);
(int) first[1].val.node->length, first[1].val.node->name);
else
cpp_error (pfile, "invalid preprocessing directive");
}
@ -1900,23 +1878,27 @@ spell_token (pfile, token, buffer)
break;
case SPELL_IDENT:
memcpy (buffer, token->val.name.text, token->val.name.len);
buffer += token->val.name.len;
memcpy (buffer, token->val.node->name, token->val.node->length);
buffer += token->val.node->length;
break;
case SPELL_STRING:
{
unsigned char c;
if (token->type == CPP_WSTRING || token->type == CPP_WCHAR)
*buffer++ = 'L';
c = '\'';
if (token->type == CPP_STRING || token->type == CPP_WSTRING)
c = '"';
*buffer++ = c;
memcpy (buffer, token->val.name.text, token->val.name.len);
buffer += token->val.name.len;
*buffer++ = c;
*buffer++ = '"';
if (token->type == CPP_CHAR || token->type == CPP_WCHAR)
*buffer++ = '\'';
memcpy (buffer, token->val.str.text, token->val.str.len);
buffer += token->val.str.len;
if (token->type == CPP_STRING || token->type == CPP_WSTRING)
*buffer++ = '"';
if (token->type == CPP_CHAR || token->type == CPP_WCHAR)
*buffer++ = '\'';
}
break;
@ -2096,7 +2078,7 @@ is_macro_disabled (pfile, expansion, token)
if (CPP_OPTION (pfile, warn_traditional))
cpp_warning (pfile,
"function macro %.*s must be used with arguments in traditional C",
(int) token->val.name.len, token->val.name.text);
(int) token->val.node->length, token->val.node->name);
return 1;
}
}
@ -2314,8 +2296,8 @@ make_string_token (token, text, len)
buf = (U_CHAR *) xmalloc (len * 4);
token->type = CPP_STRING;
token->flags = 0;
token->val.name.text = buf;
token->val.name.len = quote_string (buf, text, len) - buf;
token->val.str.text = buf;
token->val.str.len = quote_string (buf, text, len) - buf;
return token;
}
@ -2335,8 +2317,8 @@ alloc_number_token (pfile, number)
result->type = CPP_NUMBER;
result->flags = 0;
result->val.name.text = (U_CHAR *) buf;
result->val.name.len = strlen (buf);
result->val.str.text = (U_CHAR *) buf;
result->val.str.len = strlen (buf);
return result;
}
@ -2369,10 +2351,10 @@ release_temp_tokens (pfile)
{
cpp_token *token = pfile->temp_tokens[--pfile->temp_used];
if (token_spellings[token->type].type > SPELL_NONE)
if (token_spellings[token->type].type == SPELL_STRING)
{
free ((char *) token->val.name.text);
token->val.name.text = 0;
free ((char *) token->val.str.text);
token->val.str.text = 0;
}
}
}
@ -2394,9 +2376,9 @@ _cpp_free_temp_tokens (pfile)
if (pfile->date)
{
free ((char *) pfile->date->val.name.text);
free ((char *) pfile->date->val.str.text);
free (pfile->date);
free ((char *) pfile->time->val.name.text);
free ((char *) pfile->time->val.str.text);
free (pfile->time);
}
}
@ -2410,11 +2392,11 @@ duplicate_token (pfile, token)
cpp_token *result = get_temp_token (pfile);
*result = *token;
if (token_spellings[token->type].type > SPELL_NONE)
if (token_spellings[token->type].type == SPELL_STRING)
{
U_CHAR *buff = (U_CHAR *) xmalloc (token->val.name.len);
memcpy (buff, token->val.name.text, token->val.name.len);
result->val.name.text = buff;
U_CHAR *buff = (U_CHAR *) xmalloc (token->val.str.len);
memcpy (buff, token->val.str.text, token->val.str.len);
result->val.str.text = buff;
}
return result;
}
@ -2489,13 +2471,11 @@ can_paste (pfile, token1, token2, digraph)
case CPP_NAME:
if (b == CPP_NAME) return CPP_NAME;
if (b == CPP_NUMBER
&& is_numstart(token2->val.name.text[0])) return CPP_NAME;
&& is_numstart(token2->val.str.text[0])) return CPP_NAME;
if (b == CPP_CHAR
&& token1->val.name.len == 1
&& token1->val.name.text[0] == 'L') return CPP_WCHAR;
&& token1->val.node == pfile->spec_nodes->n_L) return CPP_WCHAR;
if (b == CPP_STRING
&& token1->val.name.len == 1
&& token1->val.name.text[0] == 'L') return CPP_WSTRING;
&& token1->val.node == pfile->spec_nodes->n_L) return CPP_WSTRING;
break;
case CPP_NUMBER:
@ -2504,7 +2484,7 @@ can_paste (pfile, token1, token2, digraph)
if (b == CPP_DOT) return CPP_NUMBER;
/* Numbers cannot have length zero, so this is safe. */
if ((b == CPP_PLUS || b == CPP_MINUS)
&& VALID_SIGN ('+', token1->val.name.text[token1->val.name.len - 1]))
&& VALID_SIGN ('+', token1->val.str.text[token1->val.str.len - 1]))
return CPP_NUMBER;
break;
@ -2578,15 +2558,21 @@ maybe_paste_with_next (pfile, token)
if (type == CPP_NAME || type == CPP_NUMBER)
{
/* Join spellings. */
U_CHAR *buff, *buff2;
U_CHAR *buf, *end;
pasted = get_temp_token (pfile);
buff = (U_CHAR *) xmalloc (TOKEN_LEN (token) + TOKEN_LEN (second));
buff2 = spell_token (pfile, token, buff);
buff2 = spell_token (pfile, second, buff2);
buf = (U_CHAR *) alloca (TOKEN_LEN (token) + TOKEN_LEN (second));
end = spell_token (pfile, token, buf);
end = spell_token (pfile, second, end);
*end = '\0';
pasted->val.name.text = buff;
pasted->val.name.len = buff2 - buff;
if (type == CPP_NAME)
pasted->val.node = cpp_lookup (pfile, buf, end - buf);
else
{
pasted->val.str.text = uxstrdup (buf);
pasted->val.str.len = end - buf;
}
}
else if (type == CPP_WCHAR || type == CPP_WSTRING)
pasted = duplicate_token (pfile, second);
@ -2597,7 +2583,7 @@ maybe_paste_with_next (pfile, token)
}
pasted->type = type;
pasted->flags = digraph ? DIGRAPH: 0;
pasted->flags = digraph ? DIGRAPH : 0;
}
/* The pasted token gets the whitespace flags and position of the
@ -2681,8 +2667,8 @@ stringify_arg (pfile, token)
}
result->type = CPP_STRING;
result->val.name.text = main_buf;
result->val.name.len = buf_used;
result->val.str.text = main_buf;
result->val.str.len = buf_used;
restore_macro_expansion (pfile, prev_value);
return result;
}
@ -2907,7 +2893,7 @@ cpp_get_token (pfile)
if (pfile->no_expand_level == pfile->cur_context || pfile->paste_level)
return token;
node = cpp_lookup (pfile, token->val.name.text, token->val.name.len);
node = token->val.node;
if (node->type == T_VOID)
return token;
@ -3194,7 +3180,7 @@ special_symbol (pfile, node, token)
#ifdef STDC_0_IN_SYSTEM_HEADERS
if (CPP_IN_SYSTEM_HEADER (pfile)
&& !cpp_defined (pfile, DSC("__STRICT_ANSI__")))
&& pfile->spec_nodes->n__STRICT_ANSI__->type == T_VOID)
stdc = 0;
#endif
result = alloc_number_token (pfile, stdc);
@ -3217,16 +3203,16 @@ special_symbol (pfile, node, token)
pfile->time = make_string_token
((cpp_token *) xmalloc (sizeof (cpp_token)), DSC("12:34:56"));
sprintf ((char *) pfile->date->val.name.text, "%s %2d %4d",
sprintf ((char *) pfile->date->val.str.text, "%s %2d %4d",
monthnames[tb->tm_mon], tb->tm_mday, tb->tm_year + 1900);
sprintf ((char *) pfile->time->val.name.text, "%02d:%02d:%02d",
sprintf ((char *) pfile->time->val.str.text, "%02d:%02d:%02d",
tb->tm_hour, tb->tm_min, tb->tm_sec);
}
result = node->type == T_DATE ? pfile->date: pfile->time;
break;
case T_POISON:
cpp_error (pfile, "attempt to use poisoned \"%s\".", node->name);
cpp_error (pfile, "attempt to use poisoned \"%s\"", node->name);
return token;
default:

126
gcc/cpplib.c
View File

@ -148,8 +148,6 @@ _cpp_check_directive (pfile, token, bol)
const cpp_token *token;
int bol;
{
const U_CHAR *name = token->val.name.text;
size_t len = token->val.name.len;
unsigned int i;
/* If we are rescanning preprocessed input, don't obey any directives
@ -158,7 +156,7 @@ _cpp_check_directive (pfile, token, bol)
return 0;
for (i = 0; i < N_DIRECTIVES; i++)
if (dtable[i].length == len && !memcmp (dtable[i].name, name, len))
if (pfile->spec_nodes->dirs[i] == token->val.node)
{
/* If we are skipping a failed conditional group, all non-conditional
directives are ignored. */
@ -250,8 +248,6 @@ get_define_node (pfile)
{
cpp_hashnode *node;
const cpp_token *token;
const U_CHAR *sym;
unsigned int len;
/* Skip any -C comments. */
while ((token = cpp_get_token (pfile))->type == CPP_COMMENT)
@ -259,27 +255,26 @@ get_define_node (pfile)
if (token->type != CPP_NAME)
{
cpp_error_with_line (pfile, pfile->token_list.line, token->col,
cpp_error_with_line (pfile, token->line, token->col,
"macro names must be identifiers");
return 0;
}
/* That identifier is not allowed to be "defined". See predefined
macro names (6.10.8.4). */
len = token->val.name.len;
sym = token->val.name.text;
if (str_match (sym, len, "defined"))
node = token->val.node;
if (node == pfile->spec_nodes->n_defined)
{
cpp_error_with_line (pfile, pfile->token_list.line, token->col,
"\"defined\" is not a legal macro name");
return 0;
}
node = cpp_lookup (pfile, sym, len);
/* Check for poisoned identifiers now. */
if (node->type == T_POISON)
{
cpp_error (pfile, "attempt to use poisoned \"%.*s\"", (int) len, sym);
cpp_error (pfile, "attempt to use poisoned \"%s\"", node->name);
return 0;
}
@ -360,7 +355,7 @@ parse_include (pfile, dir, trail, strp, lenp, abp)
return 1;
}
}
if (name->val.name.len == 0)
if (name->val.str.len == 0)
{
cpp_error (pfile, "empty file name in #%s", dir);
return 1;
@ -369,8 +364,8 @@ parse_include (pfile, dir, trail, strp, lenp, abp)
if (!trail && cpp_get_token (pfile)->type != CPP_EOF)
cpp_error (pfile, "junk at end of #%s", dir);
*lenp = name->val.name.len;
*strp = name->val.name.text;
*lenp = name->val.str.len;
*strp = name->val.str.text;
*abp = (name->type == CPP_HEADER_NAME);
return 0;
}
@ -466,8 +461,8 @@ read_line_number (pfile, num)
{
const cpp_token *tok = cpp_get_token (pfile);
enum cpp_ttype type = tok->type;
const U_CHAR *p = tok->val.name.text;
unsigned int len = tok->val.name.len;
const U_CHAR *p = tok->val.str.text;
unsigned int len = tok->val.str.len;
if (type == CPP_NUMBER && len == 1 && p[0] >= '1' && p[0] <= '4')
{
@ -526,8 +521,8 @@ do_line (pfile)
tok = cpp_get_token (pfile);
type = tok->type;
str = tok->val.name.text;
len = tok->val.name.len;
str = tok->val.str.text;
len = tok->val.str.len;
if (type != CPP_NUMBER || strtoul_for_line (str, len, &new_lineno))
{
@ -542,8 +537,8 @@ do_line (pfile)
ip->lineno = new_lineno;
tok = cpp_get_token (pfile);
type = tok->type;
str = tok->val.name.text;
len = tok->val.name.len;
str = tok->val.str.text;
len = tok->val.str.len;
if (type == CPP_EOF)
goto done;
@ -683,8 +678,7 @@ struct pragma_entry
};
static int pragma_dispatch
PARAMS ((cpp_reader *, const struct pragma_entry *,
const U_CHAR *, size_t));
PARAMS ((cpp_reader *, const struct pragma_entry *, const cpp_hashnode *));
static int do_pragma_once PARAMS ((cpp_reader *));
static int do_pragma_implementation PARAMS ((cpp_reader *));
static int do_pragma_poison PARAMS ((cpp_reader *));
@ -710,12 +704,14 @@ static const struct pragma_entry gcc_pragmas[] =
{NULL, NULL}
};
static int pragma_dispatch (pfile, table, p, len)
static int pragma_dispatch (pfile, table, node)
cpp_reader *pfile;
const struct pragma_entry *table;
const U_CHAR *p;
size_t len;
const cpp_hashnode *node;
{
const U_CHAR *p = node->name;
size_t len = node->length;
for (; table->name; table++)
if (strlen (table->name) == len && !memcmp (p, table->name, len))
return (*table->handler) (pfile);
@ -738,8 +734,7 @@ do_pragma (pfile)
return 0;
}
pop = pragma_dispatch (pfile, top_pragmas,
tok->val.name.text, tok->val.name.len);
pop = pragma_dispatch (pfile, top_pragmas, tok->val.node);
if (!pop)
pass_thru_directive (pfile);
return 0;
@ -757,8 +752,7 @@ do_pragma_gcc (pfile)
else if (tok->type != CPP_NAME)
return 0;
return pragma_dispatch (pfile, gcc_pragmas,
tok->val.name.text, tok->val.name.len);
return pragma_dispatch (pfile, gcc_pragmas, tok->val.node);
}
static int
@ -799,9 +793,9 @@ do_pragma_implementation (pfile)
}
/* Make a NUL-terminated copy of the string. */
copy = alloca (tok->val.name.len + 1);
memcpy (copy, tok->val.name.text, tok->val.name.len);
copy[tok->val.name.len] = '\0';
copy = alloca (tok->val.str.len + 1);
memcpy (copy, tok->val.str.text, tok->val.str.len);
copy[tok->val.str.len] = '\0';
if (cpp_included (pfile, copy))
cpp_warning (pfile,
@ -837,7 +831,7 @@ do_pragma_poison (pfile)
return 1;
}
hp = cpp_lookup (pfile, tok->val.name.text, tok->val.name.len);
hp = tok->val.node;
if (hp->type == T_POISON)
; /* It is allowed to poison the same identifier twice. */
else
@ -943,7 +937,7 @@ detect_if_not_defined (pfile)
token++;
if (token->type != CPP_NAME
|| !str_match (token->val.name.text, token->val.name.len, "defined"))
|| token->val.node != pfile->spec_nodes->n_defined)
return 0;
token++;
@ -953,7 +947,7 @@ detect_if_not_defined (pfile)
if (token->type != CPP_NAME)
return 0;
cmacro = cpp_lookup (pfile, token->val.name.text, token->val.name.len);
cmacro = token->val.node;
if (token[-1].type == CPP_OPEN_PAREN)
{
@ -977,15 +971,11 @@ parse_ifdef (pfile, name)
cpp_reader *pfile;
const U_CHAR *name;
{
const U_CHAR *ident;
unsigned int len;
enum cpp_ttype type;
const cpp_hashnode *node = 0;
const cpp_token *token = cpp_get_token (pfile);
type = token->type;
ident = token->val.name.text;
len = token->val.name.len;
if (!CPP_TRADITIONAL (pfile))
{
@ -998,9 +988,13 @@ parse_ifdef (pfile, name)
}
if (type == CPP_NAME)
node = cpp_lookup (pfile, ident, len);
node = token->val.node;
if (node && node->type == T_POISON)
cpp_error (pfile, "attempt to use poisoned identifier \"%s\"", node->name);
{
cpp_error (pfile, "attempt to use poisoned identifier \"%s\"",
node->name);
node = 0;
}
return node;
}
@ -1011,17 +1005,12 @@ static int
do_ifdef (pfile)
cpp_reader *pfile;
{
int def = 0;
const cpp_hashnode *node = 0;
if (! pfile->skipping)
{
node = parse_ifdef (pfile, dtable[T_IFDEF].name);
if (node)
def = (node->type != T_VOID && node->type != T_POISON);
}
node = parse_ifdef (pfile, dtable[T_IFDEF].name);
push_conditional (pfile, !def, T_IFDEF, 0);
push_conditional (pfile, !(node && node->type != T_VOID), T_IFDEF, 0);
return 0;
}
@ -1033,18 +1022,16 @@ do_ifndef (pfile)
cpp_reader *pfile;
{
int start_of_file = 0;
int def = 0;
const cpp_hashnode *cmacro = 0;
const cpp_hashnode *node = 0;
if (! pfile->skipping)
{
start_of_file = (pfile->token_list.flags & BEG_OF_FILE);
cmacro = parse_ifdef (pfile, dtable[T_IFNDEF].name);
if (cmacro)
def = cmacro->type != T_VOID;
node = parse_ifdef (pfile, dtable[T_IFNDEF].name);
}
push_conditional (pfile, def, T_IFNDEF, start_of_file ? cmacro : 0);
push_conditional (pfile, node && node->type != T_VOID,
T_IFNDEF, start_of_file ? node : 0);
return 0;
}
@ -1060,7 +1047,8 @@ do_if (pfile)
if (! pfile->skipping)
{
cmacro = detect_if_not_defined (pfile);
if (pfile->token_list.flags & BEG_OF_FILE)
cmacro = detect_if_not_defined (pfile);
value = _cpp_parse_expr (pfile);
}
push_conditional (pfile, value == 0, T_IF, cmacro);
@ -1294,13 +1282,13 @@ _cpp_parse_assertion (pfile, answerp)
dest = &list->tokens[list->tokens_used++];
*dest = *token;
if (token_spellings[token->type].type > SPELL_NONE)
if (token_spellings[token->type].type == SPELL_STRING)
{
_cpp_expand_name_space (list, token->val.name.len);
dest->val.name.text = list->namebuf + list->name_used;
_cpp_expand_name_space (list, token->val.str.len);
dest->val.str.text = list->namebuf + list->name_used;
memcpy (list->namebuf + list->name_used,
token->val.name.text, token->val.name.len);
list->name_used += token->val.name.len;
token->val.str.text, token->val.str.len);
list->name_used += token->val.str.len;
}
}
@ -1322,12 +1310,12 @@ _cpp_parse_assertion (pfile, answerp)
lookup_node:
*answerp = answer;
len = predicate->val.name.len;
len = predicate->val.node->length;
sym = alloca (len + 1);
/* Prefix '#' to get it out of macro namespace. */
sym[0] = '#';
memcpy (sym + 1, predicate->val.name.text, len);
memcpy (sym + 1, predicate->val.node->name, len);
return cpp_lookup (pfile, sym, len + 1);
error:
@ -1586,12 +1574,26 @@ cpp_pop_buffer (pfile)
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
#define DSC(x) U x, sizeof x - 1
void
_cpp_init_stacks (pfile)
cpp_reader *pfile;
{
int i;
struct spec_nodes *s;
pfile->buffer_ob = xnew (struct obstack);
obstack_init (pfile->buffer_ob);
/* Perhaps not the ideal place to put this. */
pfile->spec_nodes = s = xnew (struct spec_nodes);
s->n_L = cpp_lookup (pfile, DSC("L"));
s->n_defined = cpp_lookup (pfile, DSC("defined"));
s->n__STRICT_ANSI__ = cpp_lookup (pfile, DSC("__STRICT_ANSI__"));
s->n__CHAR_UNSIGNED__ = cpp_lookup (pfile, DSC("__CHAR_UNSIGNED__"));
s->n__VA_ARGS__ = cpp_lookup (pfile, DSC("__VA_ARGS__"));
for (i = 0; i < N_DIRECTIVES; i++)
s->dirs[i] = cpp_lookup (pfile, dtable[i].name, dtable[i].length);
}
void

27
gcc/cpplib.h
View File

@ -34,7 +34,7 @@ typedef struct cpp_options cpp_options;
typedef struct cpp_printer cpp_printer;
typedef struct cpp_token cpp_token;
typedef struct cpp_toklist cpp_toklist;
typedef struct cpp_name cpp_name;
typedef struct cpp_string cpp_string;
typedef struct cpp_hashnode cpp_hashnode;
/* The first two groups, apart from '=', can appear in preprocessor
@ -112,18 +112,18 @@ typedef struct cpp_hashnode cpp_hashnode;
C(CPP_OTHER, 0) /* stray punctuation */ \
\
I(CPP_NAME, 0) /* word */ \
I(CPP_INT, 0) /* 23 */ \
I(CPP_FLOAT, 0) /* 3.14159 */ \
I(CPP_NUMBER, 0) /* 34_be+ta */ \
S(CPP_INT, 0) /* 23 */ \
S(CPP_FLOAT, 0) /* 3.14159 */ \
S(CPP_NUMBER, 0) /* 34_be+ta */ \
S(CPP_CHAR, 0) /* 'char' */ \
S(CPP_WCHAR, 0) /* L'char' */ \
S(CPP_STRING, 0) /* "string" */ \
S(CPP_WSTRING, 0) /* L"string" */ \
\
I(CPP_COMMENT, 0) /* Only if output comments. */ \
S(CPP_COMMENT, 0) /* Only if output comments. */ \
N(CPP_MACRO_ARG, 0) /* Macro argument. */ \
N(CPP_EOF, 0) /* End of file. */ \
I(CPP_HEADER_NAME, 0) /* <stdio.h> in #include */
S(CPP_HEADER_NAME, 0) /* <stdio.h> in #include */
#define T(e, s) e,
#define I(e, s) e,
@ -141,8 +141,8 @@ enum cpp_ttype
#undef C
#undef N
/* Payload of a NAME, NUMBER, FLOAT, STRING, or COMMENT token. */
struct cpp_name
/* Payload of a NUMBER, FLOAT, STRING, or COMMENT token. */
struct cpp_string
{
unsigned int len;
const unsigned char *text;
@ -168,7 +168,8 @@ struct cpp_token
union
{
HOST_WIDEST_INT integer; /* an integer */
struct cpp_name name; /* a string */
struct cpp_hashnode *node; /* an identifier */
struct cpp_string str; /* a string, or number */
unsigned int aux; /* argument no. for a CPP_MACRO_ARG, or
character represented by CPP_OTHER. */
} val;
@ -558,6 +559,10 @@ struct cpp_reader
/* True if output_line_command needs to output a newline. */
unsigned char need_newline;
/* Special nodes - identifiers with predefined significance to the
preprocessor. */
struct spec_nodes *spec_nodes;
};
/* struct cpp_printer encapsulates state used to convert the stream of
@ -693,8 +698,8 @@ extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
extern void cpp_scan_buffer PARAMS ((cpp_reader *, cpp_printer *));
extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *));
extern int cpp_idcmp PARAMS ((const unsigned char *,
size_t, const char *));
extern int cpp_ideq PARAMS ((const cpp_token *,
const char *));
/* In cpphash.c */
extern int cpp_defined PARAMS ((cpp_reader *,

10
gcc/fix-header.c
View File

@ -501,7 +501,7 @@ recognized_extern (name)
switch (special_file_handling)
{
case errno_h:
if (!cpp_idcmp (name->val.name.text, name->val.name.len, "errno"))
if (cpp_ideq (name, "errno"))
seen_errno = 1, required_other--;
break;
@ -531,8 +531,8 @@ recognized_function (fname, kind, have_arg_list, file_seen)
missing_extern_C_count++;
#endif
fn = lookup_std_proto ((const char *)fname->val.name.text,
fname->val.name.len);
fn = lookup_std_proto ((const char *)fname->val.node->name,
fname->val.node->length);
/* Remove the function from the list of required function. */
if (fn)
@ -653,9 +653,7 @@ read_scan_file (in_fname, argc, argv)
if (CPP_BUFFER (&scan_in) == buf)
break;
}
else if (t->type == CPP_NAME && cpp_idcmp (t->val.name.text,
t->val.name.len,
"_filbuf") == 0)
else if (cpp_ideq (t, "_filbuf"))
seen_filbuf++;
}
if (seen_filbuf)

9
gcc/scan-decls.c
View File

@ -193,18 +193,17 @@ scan_decls (pfile, argc, argv)
break;
case CPP_NAME:
/* "inline" and "extern" are recognized but skipped */
if (!cpp_idcmp (token->val.name.text, token->val.name.len, "inline"))
if (cpp_ideq (token, "inline"))
{
saw_inline = 1;
}
else if (!cpp_idcmp (token->val.name.text,
token->val.name.len, "extern"))
else if (cpp_ideq (token, "extern"))
{
saw_extern = 1;
token = cpp_get_token (pfile);
if (token->type == CPP_STRING
&& !cpp_idcmp (token->val.name.text,
token->val.name.len, "C"))
&& token->val.str.len == 1
&& token->val.str.text[0] == 'C')
{
current_extern_C = 1;
token = cpp_get_token (pfile);