static void set_std_c89 PARAMS ((int, int));
static void set_std_c99 PARAMS ((int));
static void check_deps_environment_vars PARAMS ((void));
-static void preprocess_file PARAMS ((void));
static void handle_deferred_opts PARAMS ((void));
static void sanitize_cpp_opts PARAMS ((void));
static void add_prefixed_path PARAMS ((const char *, size_t));
depends on this. Preprocessed output does occur if -MD, -MMD
or environment var dependency generation is used. */
cpp_opts->deps.style = (code == OPT_M ? DEPS_SYSTEM: DEPS_USER);
- cpp_opts->no_output = 1;
+ flag_no_output = 1;
cpp_opts->inhibit_warnings = 1;
break;
break;
case OPT_P:
- cpp_opts->no_line_commands = 1;
+ flag_no_line_commands = 1;
break;
case OPT_Wabi:
return flag_preprocess_only;
}
-/* Preprocess the input file to out_stream. */
-static void
-preprocess_file ()
-{
- /* Open the output now. We must do so even if no_output is on,
- because there may be other output than from the actual
- preprocessing (e.g. from -dM). */
- if (out_fname[0] == '\0')
- out_stream = stdout;
- else
- out_stream = fopen (out_fname, "w");
-
- if (out_stream == NULL)
- fatal_io_error ("opening output file %s", out_fname);
- else
- cpp_preprocess_file (parse_in, in_fname, out_stream);
-}
-
/* Front end initialization common to C, ObjC and C++. */
const char *
c_common_init (filename)
cpp_main_file. */
cpp_get_callbacks (parse_in)->register_builtins = cb_register_builtins;
- /* NULL is passed up to toplev.c and we exit quickly. */
if (flag_preprocess_only)
{
- preprocess_file ();
+ /* Open the output now. We must do so even if flag_no_output is
+ on, because there may be other output than from the actual
+ preprocessing (e.g. from -dM). */
+ if (out_fname[0] == '\0')
+ out_stream = stdout;
+ else
+ out_stream = fopen (out_fname, "w");
+
+ if (out_stream == NULL)
+ fatal_io_error ("opening output file %s", out_fname);
+ else
+ /* Preprocess the input file to out_stream. */
+ preprocess_file (parse_in, in_fname, out_stream);
+
+ /* Exit quickly in toplev.c. */
return NULL;
}
- /* Do this before initializing pragmas, as then cpplib's hash table
- has been set up. NOTE: we are using our own file name here, not
- the one supplied. */
- filename = init_c_lex (in_fname);
+ init_c_lex ();
+
+ /* Start it at 0. */
+ lineno = 0;
+
+ /* NOTE: we use in_fname here, not the one supplied. */
+ filename = cpp_read_main_file (parse_in, in_fname, ident_hash);
+ /* Has to wait until now so that cpplib has its hash table. */
init_pragma ();
return filename;
/* -dM and dependencies suppress normal output; do it here so that
the last -d[MDN] switch overrides earlier ones. */
- if (cpp_opts->dump_macros == dump_only)
- cpp_opts->no_output = 1;
+ if (flag_dump_macros == 'M')
+ flag_no_output = 1;
/* Disable -dD, -dN and -dI if normal output is suppressed. Allow
-dM since at least glibc relies on -M -dM to work. */
- if (cpp_opts->no_output)
+ if (flag_no_output)
{
- if (cpp_opts->dump_macros != dump_only)
- cpp_opts->dump_macros = dump_none;
- cpp_opts->dump_includes = 0;
+ if (flag_dump_macros != 'M')
+ flag_dump_macros = 0;
+ flag_dump_includes = 0;
}
cpp_opts->unsigned_char = !flag_signed_char;
while ((c = *arg++) != '\0')
switch (c)
{
- case 'M':
- cpp_opts->dump_macros = dump_only;
- break;
-
- case 'N':
- cpp_opts->dump_macros = dump_names;
- break;
-
- case 'D':
- cpp_opts->dump_macros = dump_definitions;
+ case 'M': /* Dump macros only. */
+ case 'N': /* Dump names. */
+ case 'D': /* Dump definitions. */
+ flag_dump_macros = c;
break;
case 'I':
- cpp_opts->dump_includes = 1;
+ flag_dump_includes = 1;
break;
}
}
/* Preprocess only, using cpplib.
- Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001, 2002
+ Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
Written by Per Bothner, 1994-95.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- In other words, you are welcome to use, share and improve this program.
- You are forbidden to forbid anyone else to use, share and improve
- what you give them. Help stamp out software-hoarding! */
+Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "config.h"
#include "system.h"
#include "tm.h"
#include "cpplib.h"
#include "cpphash.h"
+#include "tree.h"
+#include "c-common.h"
+
+/* Encapsulates state used to convert a stream of tokens into a text
+ file. */
+static struct
+{
+ FILE *outf; /* Stream to write to. */
+ const struct line_map *map; /* Logical to physical line mappings. */
+ const cpp_token *prev; /* Previous token. */
+ const cpp_token *source; /* Source token for spacing. */
+ unsigned int line; /* Line currently being written. */
+ unsigned char printed; /* Nonzero if something output at line. */
+} print;
static void setup_callbacks PARAMS ((cpp_reader *));
/* General output routines. */
static void scan_translation_unit PARAMS ((cpp_reader *));
static void scan_translation_unit_trad PARAMS ((cpp_reader *));
-static void account_for_newlines PARAMS ((cpp_reader *, const uchar *,
- size_t));
+static void account_for_newlines PARAMS ((const uchar *, size_t));
static int dump_macro PARAMS ((cpp_reader *, cpp_hashnode *, void *));
-static void print_line PARAMS ((cpp_reader *, const struct line_map *,
- unsigned int, const char *));
-static void maybe_print_line PARAMS ((cpp_reader *, const struct line_map *,
- unsigned int));
+static void print_line PARAMS ((const struct line_map *, unsigned int,
+ const char *));
+static void maybe_print_line PARAMS ((const struct line_map *, unsigned int));
/* Callback routines for the parser. Most of these are active only
in specific modes. */
/* Preprocess and output. */
void
-cpp_preprocess_file (pfile, in_fname, out_stream)
+preprocess_file (pfile, in_fname, out_stream)
cpp_reader *pfile;
const char *in_fname;
FILE *out_stream;
{
- /* Initialize the printer structure. Setting print.line to -1 here
- is a trick to guarantee that the first token of the file will
- cause a linemarker to be output by maybe_print_line. */
- pfile->print.line = (unsigned int) -1;
- pfile->print.printed = 0;
- pfile->print.prev = 0;
- pfile->print.map = 0;
- pfile->print.outf = out_stream;
+ /* Initialize the print structure. Setting print.line to -1 here is
+ a trick to guarantee that the first token of the file will cause
+ a linemarker to be output by maybe_print_line. */
+ print.line = (unsigned int) -1;
+ print.printed = 0;
+ print.prev = 0;
+ print.map = 0;
+ print.outf = out_stream;
setup_callbacks (pfile);
if (cpp_read_main_file (pfile, in_fname, NULL))
{
- cpp_options *options = &pfile->opts;
cpp_finish_options (pfile);
/* A successful cpp_read_main_file guarantees that we can call
cpp_scan_nooutput or cpp_get_token next. */
- if (options->no_output)
+ if (flag_no_output)
{
/* Scan -included buffers, then the main file. */
while (pfile->buffer->prev)
cpp_scan_nooutput (pfile);
cpp_scan_nooutput (pfile);
}
- else if (options->traditional)
+ else if (cpp_get_options (pfile)->traditional)
scan_translation_unit_trad (pfile);
else
scan_translation_unit (pfile);
- /* -dM command line option. Should this be in cpp_finish? */
- if (options->dump_macros == dump_only)
+ /* -dM command line option. Should this be elsewhere? */
+ if (flag_dump_macros == 'M')
cpp_forall_identifiers (pfile, dump_macro, NULL);
}
/* Flush any pending output. */
- if (pfile->print.printed)
- putc ('\n', pfile->print.outf);
+ if (print.printed)
+ putc ('\n', print.outf);
}
/* Set up the callbacks as appropriate. */
cpp_options *options = &pfile->opts;
cpp_callbacks *cb = cpp_get_callbacks (pfile);
- if (! options->no_output)
+ if (!flag_no_output)
{
cb->line_change = cb_line_change;
/* Don't emit #pragma or #ident directives if we are processing
cb->ident = cb_ident;
cb->def_pragma = cb_def_pragma;
}
- if (! options->no_line_commands)
+ if (!flag_no_line_commands)
cb->file_change = cb_file_change;
}
- if (options->dump_includes)
+ if (flag_dump_includes)
cb->include = cb_include;
- if (options->dump_macros == dump_names
- || options->dump_macros == dump_definitions)
+ if (flag_dump_macros == 'N' || flag_dump_macros == 'D')
{
cb->define = cb_define;
cb->undef = cb_undef;
{
bool avoid_paste = false;
- pfile->print.source = NULL;
+ print.source = NULL;
for (;;)
{
const cpp_token *token = cpp_get_token (pfile);
if (token->type == CPP_PADDING)
{
avoid_paste = true;
- if (pfile->print.source == NULL
- || (!(pfile->print.source->flags & PREV_WHITE)
+ if (print.source == NULL
+ || (!(print.source->flags & PREV_WHITE)
&& token->val.source == NULL))
- pfile->print.source = token->val.source;
+ print.source = token->val.source;
continue;
}
/* Subtle logic to output a space if and only if necessary. */
if (avoid_paste)
{
- if (pfile->print.source == NULL)
- pfile->print.source = token;
- if (pfile->print.source->flags & PREV_WHITE
- || (pfile->print.prev
- && cpp_avoid_paste (pfile, pfile->print.prev, token))
- || (pfile->print.prev == NULL && token->type == CPP_HASH))
- putc (' ', pfile->print.outf);
+ if (print.source == NULL)
+ print.source = token;
+ if (print.source->flags & PREV_WHITE
+ || (print.prev
+ && cpp_avoid_paste (pfile, print.prev, token))
+ || (print.prev == NULL && token->type == CPP_HASH))
+ putc (' ', print.outf);
}
else if (token->flags & PREV_WHITE)
- putc (' ', pfile->print.outf);
+ putc (' ', print.outf);
avoid_paste = false;
- pfile->print.source = NULL;
- pfile->print.prev = token;
- cpp_output_token (token, pfile->print.outf);
+ print.source = NULL;
+ print.prev = token;
+ cpp_output_token (token, print.outf);
if (token->type == CPP_COMMENT)
- account_for_newlines (pfile, token->val.str.text, token->val.str.len);
+ account_for_newlines (token->val.str.text, token->val.str.len);
}
}
-/* Adjust pfile->print.line for newlines embedded in output. */
+/* Adjust print.line for newlines embedded in output. */
static void
-account_for_newlines (pfile, str, len)
- cpp_reader *pfile;
+account_for_newlines (str, len)
const uchar *str;
size_t len;
{
while (len--)
if (*str++ == '\n')
- pfile->print.line++;
+ print.line++;
}
/* Writes out a traditionally preprocessed file. */
while (_cpp_read_logical_line_trad (pfile))
{
size_t len = pfile->out.cur - pfile->out.base;
- maybe_print_line (pfile, pfile->print.map, pfile->out.first_line);
- fwrite (pfile->out.base, 1, len, pfile->print.outf);
- pfile->print.printed = 1;
+ maybe_print_line (print.map, pfile->out.first_line);
+ fwrite (pfile->out.base, 1, len, print.outf);
+ print.printed = 1;
if (!CPP_OPTION (pfile, discard_comments))
- account_for_newlines (pfile, pfile->out.base, len);
+ account_for_newlines (pfile->out.base, len);
}
}
different line to the current one, output the required newlines or
a line marker, and return 1. Otherwise return 0. */
static void
-maybe_print_line (pfile, map, line)
- cpp_reader *pfile;
+maybe_print_line (map, line)
const struct line_map *map;
unsigned int line;
{
/* End the previous line of text. */
- if (pfile->print.printed)
+ if (print.printed)
{
- putc ('\n', pfile->print.outf);
- pfile->print.line++;
- pfile->print.printed = 0;
+ putc ('\n', print.outf);
+ print.line++;
+ print.printed = 0;
}
- if (line >= pfile->print.line && line < pfile->print.line + 8)
+ if (line >= print.line && line < print.line + 8)
{
- while (line > pfile->print.line)
+ while (line > print.line)
{
- putc ('\n', pfile->print.outf);
- pfile->print.line++;
+ putc ('\n', print.outf);
+ print.line++;
}
}
else
- print_line (pfile, map, line, "");
+ print_line (map, line, "");
}
/* Output a line marker for logical line LINE. Special flags are "1"
or "2" indicating entering or leaving a file. */
static void
-print_line (pfile, map, line, special_flags)
- cpp_reader *pfile;
+print_line (map, line, special_flags)
const struct line_map *map;
unsigned int line;
const char *special_flags;
{
/* End any previous line of text. */
- if (pfile->print.printed)
- putc ('\n', pfile->print.outf);
- pfile->print.printed = 0;
+ if (print.printed)
+ putc ('\n', print.outf);
+ print.printed = 0;
- pfile->print.line = line;
- if (! CPP_OPTION (pfile, no_line_commands))
+ print.line = line;
+ if (!flag_no_line_commands)
{
size_t to_file_len = strlen (map->to_file);
unsigned char *to_file_quoted = alloca (to_file_len * 4 + 1);
p = cpp_quote_string (to_file_quoted,
(unsigned char *)map->to_file, to_file_len);
*p = '\0';
- fprintf (pfile->print.outf, "# %u \"%s\"%s",
- SOURCE_LINE (map, pfile->print.line),
+ fprintf (print.outf, "# %u \"%s\"%s",
+ SOURCE_LINE (map, print.line),
to_file_quoted, special_flags);
if (map->sysp == 2)
- fputs (" 3 4", pfile->print.outf);
+ fputs (" 3 4", print.outf);
else if (map->sysp == 1)
- fputs (" 3", pfile->print.outf);
+ fputs (" 3", print.outf);
- putc ('\n', pfile->print.outf);
+ putc ('\n', print.outf);
}
}
if (token->type == CPP_EOF || parsing_args)
return;
- maybe_print_line (pfile, pfile->print.map, token->line);
- pfile->print.prev = 0;
- pfile->print.source = 0;
+ maybe_print_line (print.map, token->line);
+ print.prev = 0;
+ print.source = 0;
/* Supply enough spaces to put this token in its original column,
one space per column greater than 2, since scan_translation_unit
ought to care. Some things do care; the fault lies with them. */
if (!CPP_OPTION (pfile, traditional))
{
- pfile->print.printed = 1;
+ print.printed = 1;
if (token->col > 2)
{
unsigned int spaces = token->col - 2;
while (spaces--)
- putc (' ', pfile->print.outf);
+ putc (' ', print.outf);
}
}
}
static void
cb_ident (pfile, line, str)
- cpp_reader *pfile;
+ cpp_reader *pfile ATTRIBUTE_UNUSED;
unsigned int line;
const cpp_string * str;
{
- maybe_print_line (pfile, pfile->print.map, line);
- fprintf (pfile->print.outf, "#ident \"%s\"\n", str->text);
- pfile->print.line++;
+ maybe_print_line (print.map, line);
+ fprintf (print.outf, "#ident \"%s\"\n", str->text);
+ print.line++;
}
static void
unsigned int line;
cpp_hashnode *node;
{
- maybe_print_line (pfile, pfile->print.map, line);
- fputs ("#define ", pfile->print.outf);
+ maybe_print_line (print.map, line);
+ fputs ("#define ", print.outf);
- /* -dD command line option. */
- if (CPP_OPTION (pfile, dump_macros) == dump_definitions)
+ /* 'D' is whole definition; 'N' is name only. */
+ if (flag_dump_macros == 'D')
fputs ((const char *) cpp_macro_definition (pfile, node),
- pfile->print.outf);
+ print.outf);
else
- fputs ((const char *) NODE_NAME (node), pfile->print.outf);
+ fputs ((const char *) NODE_NAME (node), print.outf);
- putc ('\n', pfile->print.outf);
- pfile->print.line++;
+ putc ('\n', print.outf);
+ print.line++;
}
static void
cb_undef (pfile, line, node)
- cpp_reader *pfile;
+ cpp_reader *pfile ATTRIBUTE_UNUSED;
unsigned int line;
cpp_hashnode *node;
{
- maybe_print_line (pfile, pfile->print.map, line);
- fprintf (pfile->print.outf, "#undef %s\n", NODE_NAME (node));
- pfile->print.line++;
+ maybe_print_line (print.map, line);
+ fprintf (print.outf, "#undef %s\n", NODE_NAME (node));
+ print.line++;
}
static void
const unsigned char *dir;
const cpp_token *header;
{
- maybe_print_line (pfile, pfile->print.map, line);
- fprintf (pfile->print.outf, "#%s %s\n", dir,
+ maybe_print_line (print.map, line);
+ fprintf (print.outf, "#%s %s\n", dir,
cpp_token_as_text (pfile, header));
- pfile->print.line++;
+ print.line++;
}
/* The file name, line number or system header flags have changed, as
- described in MAP. From this point on, the old pfile->print.map might be
+ described in MAP. From this point on, the old print.map might be
pointing to freed memory, and so must not be dereferenced. */
static void
const char *flags = "";
/* First time? */
- if (pfile->print.map == NULL)
+ if (print.map == NULL)
{
/* Avoid printing foo.i when the main file is foo.c. */
if (!CPP_OPTION (pfile, preprocessed))
- print_line (pfile, map, map->from_line, flags);
+ print_line (map, map->from_line, flags);
}
else
{
/* Bring current file to correct line when entering a new file. */
if (map->reason == LC_ENTER)
- maybe_print_line (pfile, map - 1, map->from_line - 1);
+ maybe_print_line (map - 1, map->from_line - 1);
if (map->reason == LC_ENTER)
flags = " 1";
else if (map->reason == LC_LEAVE)
flags = " 2";
- print_line (pfile, map, map->from_line, flags);
+ print_line (map, map->from_line, flags);
}
- pfile->print.map = map;
+ print.map = map;
}
/* Copy a #pragma directive to the preprocessed output. */
cpp_reader *pfile;
unsigned int line;
{
- maybe_print_line (pfile, pfile->print.map, line);
- fputs ("#pragma ", pfile->print.outf);
- cpp_output_line (pfile, pfile->print.outf);
- pfile->print.line++;
+ maybe_print_line (print.map, line);
+ fputs ("#pragma ", print.outf);
+ cpp_output_line (pfile, print.outf);
+ print.line++;
}
/* Dump out the hash table. */
{
if (node->type == NT_MACRO && !(node->flags & NODE_BUILTIN))
{
- fputs ("#define ", pfile->print.outf);
+ fputs ("#define ", print.outf);
fputs ((const char *) cpp_macro_definition (pfile, node),
- pfile->print.outf);
- putc ('\n', pfile->print.outf);
- pfile->print.line++;
+ print.outf);
+ putc ('\n', print.outf);
+ print.line++;
}
return 1;
projects / platform / upstream / gcc.git / commitdiff