/* Preprocess only, using cpplib.
- Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003
+ Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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. */
+Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "cpplib.h"
-#include "cpphash.h"
+#include "../libcpp/internal.h"
#include "tree.h"
#include "c-common.h" /* For flags. */
#include "c-pragma.h" /* For parse_in. */
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. */
+ int src_line; /* Line number currently being written. */
unsigned char printed; /* Nonzero if something output at line. */
+ bool first_time; /* pp_file_change hasn't been called yet. */
} print;
/* 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 ((const uchar *, size_t));
-static int dump_macro PARAMS ((cpp_reader *, cpp_hashnode *, void *));
+static void scan_translation_unit (cpp_reader *);
+static void scan_translation_unit_trad (cpp_reader *);
+static void account_for_newlines (const unsigned char *, size_t);
+static int dump_macro (cpp_reader *, cpp_hashnode *, void *);
-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));
+static void print_line (source_location, const char *);
+static void maybe_print_line (source_location);
/* Callback routines for the parser. Most of these are active only
in specific modes. */
-static void cb_line_change PARAMS ((cpp_reader *, const cpp_token *, int));
-static void cb_define PARAMS ((cpp_reader *, unsigned int, cpp_hashnode *));
-static void cb_undef PARAMS ((cpp_reader *, unsigned int, cpp_hashnode *));
-static void cb_include PARAMS ((cpp_reader *, unsigned int,
- const unsigned char *, const char *, int));
-static void cb_ident PARAMS ((cpp_reader *, unsigned int,
- const cpp_string *));
-static void cb_def_pragma PARAMS ((cpp_reader *, unsigned int));
+static void cb_line_change (cpp_reader *, const cpp_token *, int);
+static void cb_define (cpp_reader *, source_location, cpp_hashnode *);
+static void cb_undef (cpp_reader *, source_location, cpp_hashnode *);
+static void cb_include (cpp_reader *, source_location, const unsigned char *,
+ const char *, int, const cpp_token **);
+static void cb_ident (cpp_reader *, source_location, const cpp_string *);
+static void cb_def_pragma (cpp_reader *, source_location);
+static void cb_read_pch (cpp_reader *pfile, const char *name,
+ int fd, const char *orig_name);
/* Preprocess and output. */
void
-preprocess_file (pfile)
- cpp_reader *pfile;
+preprocess_file (cpp_reader *pfile)
{
/* A successful cpp_read_main_file guarantees that we can call
cpp_scan_nooutput or cpp_get_token next. */
/* Set up the callbacks as appropriate. */
void
-init_pp_output (out_stream)
- FILE *out_stream;
+init_pp_output (FILE *out_stream)
{
cpp_callbacks *cb = cpp_get_callbacks (parse_in);
if (flag_dump_includes)
cb->include = cb_include;
+ if (flag_pch_preprocess)
+ {
+ cb->valid_pch = c_common_valid_pch;
+ cb->read_pch = cb_read_pch;
+ }
+
if (flag_dump_macros == 'N' || flag_dump_macros == 'D')
{
cb->define = cb_define;
cb->undef = cb_undef;
}
- /* Initialize the print structure. Setting print.line to -1 here is
+ /* Initialize the print structure. Setting print.src_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.src_line = -1;
print.printed = 0;
print.prev = 0;
- print.map = 0;
print.outf = out_stream;
+ print.first_time = 1;
}
/* Writes out the preprocessed file, handling spacing and paste
avoidance issues. */
static void
-scan_translation_unit (pfile)
- cpp_reader *pfile;
+scan_translation_unit (cpp_reader *pfile)
{
bool avoid_paste = false;
}
}
-/* Adjust print.line for newlines embedded in output. */
+/* Adjust print.src_line for newlines embedded in output. */
static void
-account_for_newlines (str, len)
- const uchar *str;
- size_t len;
+account_for_newlines (const unsigned char *str, size_t len)
{
while (len--)
if (*str++ == '\n')
- print.line++;
+ print.src_line++;
}
/* Writes out a traditionally preprocessed file. */
static void
-scan_translation_unit_trad (pfile)
- cpp_reader *pfile;
+scan_translation_unit_trad (cpp_reader *pfile)
{
while (_cpp_read_logical_line_trad (pfile))
{
size_t len = pfile->out.cur - pfile->out.base;
- maybe_print_line (print.map, pfile->out.first_line);
+ maybe_print_line (pfile->out.first_line);
fwrite (pfile->out.base, 1, len, print.outf);
print.printed = 1;
if (!CPP_OPTION (pfile, discard_comments))
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 (map, line)
- const struct line_map *map;
- unsigned int line;
+maybe_print_line (source_location src_loc)
{
+ const struct line_map *map = linemap_lookup (&line_table, src_loc);
+ int src_line = SOURCE_LINE (map, src_loc);
/* End the previous line of text. */
if (print.printed)
{
putc ('\n', print.outf);
- print.line++;
+ print.src_line++;
print.printed = 0;
}
- if (line >= print.line && line < print.line + 8)
+ if (src_line >= print.src_line && src_line < print.src_line + 8)
{
- while (line > print.line)
+ while (src_line > print.src_line)
{
putc ('\n', print.outf);
- print.line++;
+ print.src_line++;
}
}
else
- print_line (map, line, "");
+ print_line (src_loc, "");
}
/* Output a line marker for logical line LINE. Special flags are "1"
or "2" indicating entering or leaving a file. */
static void
-print_line (map, line, special_flags)
- const struct line_map *map;
- unsigned int line;
- const char *special_flags;
+print_line (source_location src_loc, const char *special_flags)
{
/* End any previous line of text. */
if (print.printed)
putc ('\n', print.outf);
print.printed = 0;
- print.line = line;
if (!flag_no_line_commands)
{
+ const struct line_map *map = linemap_lookup (&line_table, src_loc);
+
size_t to_file_len = strlen (map->to_file);
- unsigned char *to_file_quoted = alloca (to_file_len * 4 + 1);
+ unsigned char *to_file_quoted =
+ (unsigned char *) alloca (to_file_len * 4 + 1);
unsigned char *p;
+ print.src_line = SOURCE_LINE (map, src_loc);
+
/* cpp_quote_string does not nul-terminate, so we have to do it
ourselves. */
p = cpp_quote_string (to_file_quoted,
- (unsigned char *)map->to_file, to_file_len);
+ (unsigned char *) map->to_file, to_file_len);
*p = '\0';
fprintf (print.outf, "# %u \"%s\"%s",
- SOURCE_LINE (map, print.line),
+ print.src_line == 0 ? 1 : print.src_line,
to_file_quoted, special_flags);
if (map->sysp == 2)
/* Called when a line of output is started. TOKEN is the first token
of the line, and at end of file will be CPP_EOF. */
static void
-cb_line_change (pfile, token, parsing_args)
- cpp_reader *pfile;
- const cpp_token *token;
- int parsing_args;
+cb_line_change (cpp_reader *pfile, const cpp_token *token,
+ int parsing_args)
{
+ source_location src_loc = token->src_loc;
+
if (token->type == CPP_EOF || parsing_args)
return;
- maybe_print_line (print.map, token->line);
+ maybe_print_line (src_loc);
print.prev = 0;
print.source = 0;
ought to care. Some things do care; the fault lies with them. */
if (!CPP_OPTION (pfile, traditional))
{
+ const struct line_map *map = linemap_lookup (&line_table, src_loc);
+ int spaces = SOURCE_COLUMN (map, src_loc) - 2;
print.printed = 1;
- if (token->col > 2)
- {
- unsigned int spaces = token->col - 2;
- while (spaces--)
- putc (' ', print.outf);
- }
+ while (-- spaces >= 0)
+ putc (' ', print.outf);
}
}
static void
-cb_ident (pfile, line, str)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
- unsigned int line;
- const cpp_string * str;
+cb_ident (cpp_reader *pfile ATTRIBUTE_UNUSED, source_location line,
+ const cpp_string *str)
{
- maybe_print_line (print.map, line);
- fprintf (print.outf, "#ident \"%s\"\n", str->text);
- print.line++;
+ maybe_print_line (line);
+ fprintf (print.outf, "#ident %s\n", str->text);
+ print.src_line++;
}
static void
-cb_define (pfile, line, node)
- cpp_reader *pfile;
- unsigned int line;
- cpp_hashnode *node;
+cb_define (cpp_reader *pfile, source_location line, cpp_hashnode *node)
{
- maybe_print_line (print.map, line);
+ maybe_print_line (line);
fputs ("#define ", print.outf);
/* 'D' is whole definition; 'N' is name only. */
fputs ((const char *) NODE_NAME (node), print.outf);
putc ('\n', print.outf);
- print.line++;
+ if (linemap_lookup (&line_table, line)->to_line != 0)
+ print.src_line++;
}
static void
-cb_undef (pfile, line, node)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
- unsigned int line;
- cpp_hashnode *node;
+cb_undef (cpp_reader *pfile ATTRIBUTE_UNUSED, source_location line,
+ cpp_hashnode *node)
{
- maybe_print_line (print.map, line);
+ maybe_print_line (line);
fprintf (print.outf, "#undef %s\n", NODE_NAME (node));
- print.line++;
+ print.src_line++;
}
static void
-cb_include (pfile, line, dir, header, angle_brackets)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
- unsigned int line;
- const unsigned char *dir;
- const char *header;
- int angle_brackets;
+cb_include (cpp_reader *pfile ATTRIBUTE_UNUSED, source_location line,
+ const unsigned char *dir, const char *header, int angle_brackets,
+ const cpp_token **comments)
{
- maybe_print_line (print.map, line);
+ maybe_print_line (line);
if (angle_brackets)
- fprintf (print.outf, "#%s <%s>\n", dir, header);
+ fprintf (print.outf, "#%s <%s>", dir, header);
else
- fprintf (print.outf, "#%s \"%s\"\n", dir, header);
- print.line++;
+ fprintf (print.outf, "#%s \"%s\"", dir, header);
+
+ if (comments != NULL)
+ {
+ while (*comments != NULL)
+ {
+ if ((*comments)->flags & PREV_WHITE)
+ putc (' ', print.outf);
+ cpp_output_token (*comments, print.outf);
+ ++comments;
+ }
+ }
+
+ putc ('\n', print.outf);
+ print.src_line++;
+}
+
+/* Callback called when -fworking-director and -E to emit working
+ directory in cpp output file. */
+
+void
+pp_dir_change (cpp_reader *pfile ATTRIBUTE_UNUSED, const char *dir)
+{
+ size_t to_file_len = strlen (dir);
+ unsigned char *to_file_quoted =
+ (unsigned char *) alloca (to_file_len * 4 + 1);
+ unsigned char *p;
+
+ /* cpp_quote_string does not nul-terminate, so we have to do it ourselves. */
+ p = cpp_quote_string (to_file_quoted, (unsigned char *) dir, to_file_len);
+ *p = '\0';
+ fprintf (print.outf, "# 1 \"%s//\"\n", to_file_quoted);
}
/* The file name, line number or system header flags have changed, as
- described in MAP. From this point on, the old print.map might be
- pointing to freed memory, and so must not be dereferenced. */
+ described in MAP. */
void
-pp_file_change (map)
- const struct line_map *map;
+pp_file_change (const struct line_map *map)
{
const char *flags = "";
- if (flag_no_line_commands || flag_no_output)
+ if (flag_no_line_commands)
return;
- /* First time? */
- if (print.map == NULL)
+ if (map != NULL)
{
- /* Avoid printing foo.i when the main file is foo.c. */
- if (!cpp_get_options (parse_in)->preprocessed)
- 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 (map - 1, map->from_line - 1);
-
- if (map->reason == LC_ENTER)
- flags = " 1";
- else if (map->reason == LC_LEAVE)
- flags = " 2";
- print_line (map, map->from_line, flags);
+ if (print.first_time)
+ {
+ /* Avoid printing foo.i when the main file is foo.c. */
+ if (!cpp_get_options (parse_in)->preprocessed)
+ print_line (map->start_location, flags);
+ print.first_time = 0;
+ }
+ else
+ {
+ /* Bring current file to correct line when entering a new file. */
+ if (map->reason == LC_ENTER)
+ {
+ const struct line_map *from = INCLUDED_FROM (&line_table, map);
+ maybe_print_line (LAST_SOURCE_LINE_LOCATION (from));
+ }
+ if (map->reason == LC_ENTER)
+ flags = " 1";
+ else if (map->reason == LC_LEAVE)
+ flags = " 2";
+ print_line (map->start_location, flags);
+ }
}
-
- print.map = map;
}
/* Copy a #pragma directive to the preprocessed output. */
static void
-cb_def_pragma (pfile, line)
- cpp_reader *pfile;
- unsigned int line;
+cb_def_pragma (cpp_reader *pfile, source_location line)
{
- maybe_print_line (print.map, line);
+ maybe_print_line (line);
fputs ("#pragma ", print.outf);
cpp_output_line (pfile, print.outf);
- print.line++;
+ print.src_line++;
}
/* Dump out the hash table. */
static int
-dump_macro (pfile, node, v)
- cpp_reader *pfile;
- cpp_hashnode *node;
- void *v ATTRIBUTE_UNUSED;
+dump_macro (cpp_reader *pfile, cpp_hashnode *node, void *v ATTRIBUTE_UNUSED)
{
if (node->type == NT_MACRO && !(node->flags & NODE_BUILTIN))
{
fputs ((const char *) cpp_macro_definition (pfile, node),
print.outf);
putc ('\n', print.outf);
- print.line++;
+ print.src_line++;
}
return 1;
}
+
+/* Load in the PCH file NAME, open on FD. It was originally searched for
+ by ORIG_NAME. Also, print out a #include command so that the PCH
+ file can be loaded when the preprocessed output is compiled. */
+
+static void
+cb_read_pch (cpp_reader *pfile, const char *name,
+ int fd, const char *orig_name ATTRIBUTE_UNUSED)
+{
+ c_common_read_pch (pfile, name, fd, orig_name);
+
+ fprintf (print.outf, "#pragma GCC pch_preprocess \"%s\"\n", name);
+ print.src_line++;
+}
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