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-rw-r--r--gcc/cppmacro.c217
1 files changed, 70 insertions, 147 deletions
diff --git a/gcc/cppmacro.c b/gcc/cppmacro.c
index eba8c0032a3..2b9c9b5f89b 100644
--- a/gcc/cppmacro.c
+++ b/gcc/cppmacro.c
@@ -42,47 +42,40 @@ struct macro_arg
/* Macro expansion. */
-static int enter_macro_context PARAMS ((cpp_reader *, cpp_hashnode *));
-static int builtin_macro PARAMS ((cpp_reader *, cpp_hashnode *));
-static void push_token_context
- PARAMS ((cpp_reader *, cpp_hashnode *, const cpp_token *, unsigned int));
-static void push_ptoken_context
- PARAMS ((cpp_reader *, cpp_hashnode *, _cpp_buff *,
- const cpp_token **, unsigned int));
-static _cpp_buff *collect_args PARAMS ((cpp_reader *, const cpp_hashnode *));
-static cpp_context *next_context PARAMS ((cpp_reader *));
-static const cpp_token *padding_token
- PARAMS ((cpp_reader *, const cpp_token *));
-static void expand_arg PARAMS ((cpp_reader *, macro_arg *));
-static const cpp_token *new_string_token PARAMS ((cpp_reader *, uchar *,
- unsigned int));
-static const cpp_token *stringify_arg PARAMS ((cpp_reader *, macro_arg *));
-static void paste_all_tokens PARAMS ((cpp_reader *, const cpp_token *));
-static bool paste_tokens PARAMS ((cpp_reader *, const cpp_token **,
- const cpp_token *));
-static void replace_args PARAMS ((cpp_reader *, cpp_hashnode *, cpp_macro *,
- macro_arg *));
-static _cpp_buff *funlike_invocation_p PARAMS ((cpp_reader *, cpp_hashnode *));
-static bool create_iso_definition PARAMS ((cpp_reader *, cpp_macro *));
+static int enter_macro_context (cpp_reader *, cpp_hashnode *);
+static int builtin_macro (cpp_reader *, cpp_hashnode *);
+static void push_token_context (cpp_reader *, cpp_hashnode *,
+ const cpp_token *, unsigned int);
+static void push_ptoken_context (cpp_reader *, cpp_hashnode *, _cpp_buff *,
+ const cpp_token **, unsigned int);
+static _cpp_buff *collect_args (cpp_reader *, const cpp_hashnode *);
+static cpp_context *next_context (cpp_reader *);
+static const cpp_token *padding_token (cpp_reader *, const cpp_token *);
+static void expand_arg (cpp_reader *, macro_arg *);
+static const cpp_token *new_string_token (cpp_reader *, uchar *, unsigned int);
+static const cpp_token *stringify_arg (cpp_reader *, macro_arg *);
+static void paste_all_tokens (cpp_reader *, const cpp_token *);
+static bool paste_tokens (cpp_reader *, const cpp_token **, const cpp_token *);
+static void replace_args (cpp_reader *, cpp_hashnode *, cpp_macro *,
+ macro_arg *);
+static _cpp_buff *funlike_invocation_p (cpp_reader *, cpp_hashnode *);
+static bool create_iso_definition (cpp_reader *, cpp_macro *);
/* #define directive parsing and handling. */
-static cpp_token *alloc_expansion_token PARAMS ((cpp_reader *, cpp_macro *));
-static cpp_token *lex_expansion_token PARAMS ((cpp_reader *, cpp_macro *));
-static bool warn_of_redefinition PARAMS ((cpp_reader *, const cpp_hashnode *,
- const cpp_macro *));
-static bool parse_params PARAMS ((cpp_reader *, cpp_macro *));
-static void check_trad_stringification PARAMS ((cpp_reader *,
- const cpp_macro *,
- const cpp_string *));
+static cpp_token *alloc_expansion_token (cpp_reader *, cpp_macro *);
+static cpp_token *lex_expansion_token (cpp_reader *, cpp_macro *);
+static bool warn_of_redefinition (cpp_reader *, const cpp_hashnode *,
+ const cpp_macro *);
+static bool parse_params (cpp_reader *, cpp_macro *);
+static void check_trad_stringification (cpp_reader *, const cpp_macro *,
+ const cpp_string *);
/* Emits a warning if NODE is a macro defined in the main file that
has not been used. */
int
-_cpp_warn_if_unused_macro (pfile, node, v)
- cpp_reader *pfile;
- cpp_hashnode *node;
- void *v ATTRIBUTE_UNUSED;
+_cpp_warn_if_unused_macro (cpp_reader *pfile, cpp_hashnode *node,
+ void *v ATTRIBUTE_UNUSED)
{
if (node->type == NT_MACRO && !(node->flags & NODE_BUILTIN))
{
@@ -100,10 +93,7 @@ _cpp_warn_if_unused_macro (pfile, node, v)
/* Allocates and returns a CPP_STRING token, containing TEXT of length
LEN, after null-terminating it. TEXT must be in permanent storage. */
static const cpp_token *
-new_string_token (pfile, text, len)
- cpp_reader *pfile;
- unsigned char *text;
- unsigned int len;
+new_string_token (cpp_reader *pfile, unsigned char *text, unsigned int len)
{
cpp_token *token = _cpp_temp_token (pfile);
@@ -126,9 +116,7 @@ static const char * const monthnames[] =
is created. Returns 1 if it generates a new token context, 0 to
return the token to the caller. */
const uchar *
-_cpp_builtin_macro_text (pfile, node)
- cpp_reader *pfile;
- cpp_hashnode *node;
+_cpp_builtin_macro_text (cpp_reader *pfile, cpp_hashnode *node)
{
const uchar *result = NULL;
unsigned int number = 1;
@@ -221,7 +209,8 @@ _cpp_builtin_macro_text (pfile, node)
pfile->date = _cpp_unaligned_alloc (pfile,
sizeof ("\"Oct 11 1347\""));
sprintf ((char *) pfile->date, "\"%s %2d %4d\"",
- monthnames[tb->tm_mon], tb->tm_mday, tb->tm_year + 1900);
+ monthnames[tb->tm_mon], tb->tm_mday,
+ tb->tm_year + 1900);
pfile->time = _cpp_unaligned_alloc (pfile,
sizeof ("\"12:34:56\""));
@@ -260,9 +249,7 @@ _cpp_builtin_macro_text (pfile, node)
created. Returns 1 if it generates a new token context, 0 to
return the token to the caller. */
static int
-builtin_macro (pfile, node)
- cpp_reader *pfile;
- cpp_hashnode *node;
+builtin_macro (cpp_reader *pfile, cpp_hashnode *node)
{
const uchar *buf;
size_t len;
@@ -304,10 +291,7 @@ builtin_macro (pfile, node)
converted to octal. DEST must be of sufficient size. Returns
a pointer to the end of the string. */
uchar *
-cpp_quote_string (dest, src, len)
- uchar *dest;
- const uchar *src;
- unsigned int len;
+cpp_quote_string (uchar *dest, const uchar *src, unsigned int len)
{
while (len--)
{
@@ -336,9 +320,7 @@ cpp_quote_string (dest, src, len)
/* Convert a token sequence ARG to a single string token according to
the rules of the ISO C #-operator. */
static const cpp_token *
-stringify_arg (pfile, arg)
- cpp_reader *pfile;
- macro_arg *arg;
+stringify_arg (cpp_reader *pfile, macro_arg *arg)
{
unsigned char *dest;
unsigned int i, escape_it, backslash_count = 0;
@@ -425,9 +407,7 @@ stringify_arg (pfile, arg)
case, PLHS is updated to point to the pasted token, which is
guaranteed to not have the PASTE_LEFT flag set. */
static bool
-paste_tokens (pfile, plhs, rhs)
- cpp_reader *pfile;
- const cpp_token **plhs, *rhs;
+paste_tokens (cpp_reader *pfile, const cpp_token **plhs, const cpp_token *rhs)
{
unsigned char *buf, *end;
const cpp_token *lhs;
@@ -468,9 +448,7 @@ paste_tokens (pfile, plhs, rhs)
successful pastes, with the effect that the RHS appears in the
output stream after the pasted LHS normally. */
static void
-paste_all_tokens (pfile, lhs)
- cpp_reader *pfile;
- const cpp_token *lhs;
+paste_all_tokens (cpp_reader *pfile, const cpp_token *lhs)
{
const cpp_token *rhs;
cpp_context *context = pfile->context;
@@ -516,11 +494,7 @@ paste_all_tokens (pfile, lhs)
Note that MACRO cannot necessarily be deduced from NODE, in case
NODE was redefined whilst collecting arguments. */
bool
-_cpp_arguments_ok (pfile, macro, node, argc)
- cpp_reader *pfile;
- cpp_macro *macro;
- const cpp_hashnode *node;
- unsigned int argc;
+_cpp_arguments_ok (cpp_reader *pfile, cpp_macro *macro, const cpp_hashnode *node, unsigned int argc)
{
if (argc == macro->paramc)
return true;
@@ -561,9 +535,7 @@ _cpp_arguments_ok (pfile, macro, node, argc)
NULL. Each argument is terminated by a CPP_EOF token, for the
future benefit of expand_arg(). */
static _cpp_buff *
-collect_args (pfile, node)
- cpp_reader *pfile;
- const cpp_hashnode *node;
+collect_args (cpp_reader *pfile, const cpp_hashnode *node)
{
_cpp_buff *buff, *base_buff;
cpp_macro *macro;
@@ -697,9 +669,7 @@ collect_args (pfile, node)
intervening padding tokens. If we find the parenthesis, collect
the arguments and return the buffer containing them. */
static _cpp_buff *
-funlike_invocation_p (pfile, node)
- cpp_reader *pfile;
- cpp_hashnode *node;
+funlike_invocation_p (cpp_reader *pfile, cpp_hashnode *node)
{
const cpp_token *token, *padding = NULL;
@@ -739,9 +709,7 @@ funlike_invocation_p (pfile, node)
containing its yet-to-be-rescanned replacement list and return one.
Otherwise, we don't push a context and return zero. */
static int
-enter_macro_context (pfile, node)
- cpp_reader *pfile;
- cpp_hashnode *node;
+enter_macro_context (cpp_reader *pfile, cpp_hashnode *node)
{
/* The presence of a macro invalidates a file's controlling macro. */
pfile->mi_valid = false;
@@ -800,11 +768,7 @@ enter_macro_context (pfile, node)
Expand each argument before replacing, unless it is operated upon
by the # or ## operators. */
static void
-replace_args (pfile, node, macro, args)
- cpp_reader *pfile;
- cpp_hashnode *node;
- cpp_macro *macro;
- macro_arg *args;
+replace_args (cpp_reader *pfile, cpp_hashnode *node, cpp_macro *macro, macro_arg *args)
{
unsigned int i, total;
const cpp_token *src, *limit;
@@ -936,9 +900,7 @@ replace_args (pfile, node, macro, args)
/* Return a special padding token, with padding inherited from SOURCE. */
static const cpp_token *
-padding_token (pfile, source)
- cpp_reader *pfile;
- const cpp_token *source;
+padding_token (cpp_reader *pfile, const cpp_token *source)
{
cpp_token *result = _cpp_temp_token (pfile);
@@ -951,8 +913,7 @@ padding_token (pfile, source)
/* Get a new uninitialized context. Create a new one if we cannot
re-use an old one. */
static cpp_context *
-next_context (pfile)
- cpp_reader *pfile;
+next_context (cpp_reader *pfile)
{
cpp_context *result = pfile->context->next;
@@ -970,12 +931,8 @@ next_context (pfile)
/* Push a list of pointers to tokens. */
static void
-push_ptoken_context (pfile, macro, buff, first, count)
- cpp_reader *pfile;
- cpp_hashnode *macro;
- _cpp_buff *buff;
- const cpp_token **first;
- unsigned int count;
+push_ptoken_context (cpp_reader *pfile, cpp_hashnode *macro, _cpp_buff *buff,
+ const cpp_token **first, unsigned int count)
{
cpp_context *context = next_context (pfile);
@@ -988,11 +945,8 @@ push_ptoken_context (pfile, macro, buff, first, count)
/* Push a list of tokens. */
static void
-push_token_context (pfile, macro, first, count)
- cpp_reader *pfile;
- cpp_hashnode *macro;
- const cpp_token *first;
- unsigned int count;
+push_token_context (cpp_reader *pfile, cpp_hashnode *macro,
+ const cpp_token *first, unsigned int count)
{
cpp_context *context = next_context (pfile);
@@ -1005,11 +959,8 @@ push_token_context (pfile, macro, first, count)
/* Push a traditional macro's replacement text. */
void
-_cpp_push_text_context (pfile, macro, start, len)
- cpp_reader *pfile;
- cpp_hashnode *macro;
- const uchar *start;
- size_t len;
+_cpp_push_text_context (cpp_reader *pfile, cpp_hashnode *macro,
+ const uchar *start, size_t len)
{
cpp_context *context = next_context (pfile);
@@ -1028,9 +979,7 @@ _cpp_push_text_context (pfile, macro, start, len)
has terminated the argument's tokens with a CPP_EOF so that we know
when we have fully expanded the argument. */
static void
-expand_arg (pfile, arg)
- cpp_reader *pfile;
- macro_arg *arg;
+expand_arg (cpp_reader *pfile, macro_arg *arg)
{
unsigned int capacity;
bool saved_warn_trad;
@@ -1076,8 +1025,7 @@ expand_arg (pfile, arg)
context represented a macro's replacement list. The context
structure is not freed so that we can re-use it later. */
void
-_cpp_pop_context (pfile)
- cpp_reader *pfile;
+_cpp_pop_context (cpp_reader *pfile)
{
cpp_context *context = pfile->context;
@@ -1090,9 +1038,9 @@ _cpp_pop_context (pfile)
pfile->context = context->prev;
}
-/* Eternal routine to get a token. Also used nearly everywhere
+/* External routine to get a token. Also used nearly everywhere
internally, except for places where we know we can safely call
- the lexer directly, such as lexing a directive name.
+ _cpp_lex_token directly, such as lexing a directive name.
Macro expansions and directives are transparently handled,
including entering included files. Thus tokens are post-macro
@@ -1102,8 +1050,7 @@ _cpp_pop_context (pfile)
state.in_directive is still 1, and at the end of argument
pre-expansion. */
const cpp_token *
-cpp_get_token (pfile)
- cpp_reader *pfile;
+cpp_get_token (cpp_reader *pfile)
{
const cpp_token *result;
@@ -1180,8 +1127,7 @@ cpp_get_token (pfile)
defined in a system header. Just checks the macro at the top of
the stack. Used for diagnostic suppression. */
int
-cpp_sys_macro_p (pfile)
- cpp_reader *pfile;
+cpp_sys_macro_p (cpp_reader *pfile)
{
cpp_hashnode *node = pfile->context->macro;
@@ -1191,8 +1137,7 @@ cpp_sys_macro_p (pfile)
/* Read each token in, until end of the current file. Directives are
transparently processed. */
void
-cpp_scan_nooutput (pfile)
- cpp_reader *pfile;
+cpp_scan_nooutput (cpp_reader *pfile)
{
/* Request a CPP_EOF token at the end of this file, rather than
transparently continuing with the including file. */
@@ -1209,9 +1154,7 @@ cpp_scan_nooutput (pfile)
/* Step back one (or more) tokens. Can only step mack more than 1 if
they are from the lexer, and not from macro expansion. */
void
-_cpp_backup_tokens (pfile, count)
- cpp_reader *pfile;
- unsigned int count;
+_cpp_backup_tokens (cpp_reader *pfile, unsigned int count)
{
if (pfile->context->prev == NULL)
{
@@ -1243,10 +1186,8 @@ _cpp_backup_tokens (pfile, count)
/* Returns nonzero if a macro redefinition warning is required. */
static bool
-warn_of_redefinition (pfile, node, macro2)
- cpp_reader *pfile;
- const cpp_hashnode *node;
- const cpp_macro *macro2;
+warn_of_redefinition (cpp_reader *pfile, const cpp_hashnode *node,
+ const cpp_macro *macro2)
{
const cpp_macro *macro1;
unsigned int i;
@@ -1287,8 +1228,7 @@ warn_of_redefinition (pfile, node, macro2)
/* Free the definition of hashnode H. */
void
-_cpp_free_definition (h)
- cpp_hashnode *h;
+_cpp_free_definition (cpp_hashnode *h)
{
/* Macros and assertions no longer have anything to free. */
h->type = NT_VOID;
@@ -1299,10 +1239,7 @@ _cpp_free_definition (h)
/* Save parameter NODE to the parameter list of macro MACRO. Returns
zero on success, nonzero if the parameter is a duplicate. */
bool
-_cpp_save_parameter (pfile, macro, node)
- cpp_reader *pfile;
- cpp_macro *macro;
- cpp_hashnode *node;
+_cpp_save_parameter (cpp_reader *pfile, cpp_macro *macro, cpp_hashnode *node)
{
unsigned int len;
/* Constraint 6.10.3.6 - duplicate parameter names. */
@@ -1335,9 +1272,7 @@ _cpp_save_parameter (pfile, macro, node)
/* Check the syntax of the parameters in a MACRO definition. Returns
false if an error occurs. */
static bool
-parse_params (pfile, macro)
- cpp_reader *pfile;
- cpp_macro *macro;
+parse_params (cpp_reader *pfile, cpp_macro *macro)
{
unsigned int prev_ident = 0;
@@ -1416,9 +1351,7 @@ parse_params (pfile, macro)
/* Allocate room for a token from a macro's replacement list. */
static cpp_token *
-alloc_expansion_token (pfile, macro)
- cpp_reader *pfile;
- cpp_macro *macro;
+alloc_expansion_token (cpp_reader *pfile, cpp_macro *macro)
{
if (BUFF_ROOM (pfile->a_buff) < (macro->count + 1) * sizeof (cpp_token))
_cpp_extend_buff (pfile, &pfile->a_buff, sizeof (cpp_token));
@@ -1429,9 +1362,7 @@ alloc_expansion_token (pfile, macro)
/* Lex a token from the expansion of MACRO, but mark parameters as we
find them and warn of traditional stringification. */
static cpp_token *
-lex_expansion_token (pfile, macro)
- cpp_reader *pfile;
- cpp_macro *macro;
+lex_expansion_token (cpp_reader *pfile, cpp_macro *macro)
{
cpp_token *token;
@@ -1453,9 +1384,7 @@ lex_expansion_token (pfile, macro)
}
static bool
-create_iso_definition (pfile, macro)
- cpp_reader *pfile;
- cpp_macro *macro;
+create_iso_definition (cpp_reader *pfile, cpp_macro *macro)
{
cpp_token *token;
const cpp_token *ctoken;
@@ -1524,7 +1453,7 @@ create_iso_definition (pfile, macro)
if (macro->count == 0 || token->type == CPP_EOF)
{
cpp_error (pfile, DL_ERROR,
- "'##' cannot appear at either end of a macro expansion");
+ "'##' cannot appear at either end of a macro expansion");
return false;
}
@@ -1551,9 +1480,7 @@ create_iso_definition (pfile, macro)
/* Parse a macro and save its expansion. Returns nonzero on success. */
bool
-_cpp_create_definition (pfile, node)
- cpp_reader *pfile;
- cpp_hashnode *node;
+_cpp_create_definition (cpp_reader *pfile, cpp_hashnode *node)
{
cpp_macro *macro;
unsigned int i;
@@ -1634,10 +1561,8 @@ _cpp_create_definition (pfile, node)
/* Warn if a token in STRING matches one of a function-like MACRO's
parameters. */
static void
-check_trad_stringification (pfile, macro, string)
- cpp_reader *pfile;
- const cpp_macro *macro;
- const cpp_string *string;
+check_trad_stringification (cpp_reader *pfile, const cpp_macro *macro,
+ const cpp_string *string)
{
unsigned int i, len;
const uchar *p, *q, *limit;
@@ -1681,9 +1606,7 @@ check_trad_stringification (pfile, macro, string)
Caller is expected to generate the "#define" bit if needed. The
returned text is temporary, and automatically freed later. */
const unsigned char *
-cpp_macro_definition (pfile, node)
- cpp_reader *pfile;
- const cpp_hashnode *node;
+cpp_macro_definition (cpp_reader *pfile, const cpp_hashnode *node)
{
unsigned int i, len;
const cpp_macro *macro = node->value.macro;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-04 13:54:11 +0000