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Diffstat (limited to 'gcc-4.2.1-5666.3/libcpp/mkdeps.c')
-rw-r--r--gcc-4.2.1-5666.3/libcpp/mkdeps.c418
1 files changed, 0 insertions, 418 deletions
diff --git a/gcc-4.2.1-5666.3/libcpp/mkdeps.c b/gcc-4.2.1-5666.3/libcpp/mkdeps.c
deleted file mode 100644
index 8aa96c529..000000000
--- a/gcc-4.2.1-5666.3/libcpp/mkdeps.c
+++ /dev/null
@@ -1,418 +0,0 @@
-/* Dependency generator for Makefile fragments.
- Copyright (C) 2000, 2001, 2003, 2007 Free Software Foundation, Inc.
- Contributed by Zack Weinberg, Mar 2000
-
-This program is free software; you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
-later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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! */
-
-#include "config.h"
-#include "system.h"
-#include "mkdeps.h"
-
-/* Keep this structure local to this file, so clients don't find it
- easy to start making assumptions. */
-struct deps
-{
- const char **targetv;
- unsigned int ntargets; /* number of slots actually occupied */
- unsigned int targets_size; /* amt of allocated space - in words */
-
- const char **depv;
- unsigned int ndeps;
- unsigned int deps_size;
-
- const char **vpathv;
- size_t *vpathlv;
- unsigned int nvpaths;
- unsigned int vpaths_size;
-};
-
-static const char *munge (const char *);
-
-/* Given a filename, quote characters in that filename which are
- significant to Make. Note that it's not possible to quote all such
- characters - e.g. \n, %, *, ?, [, \ (in some contexts), and ~ are
- not properly handled. It isn't possible to get this right in any
- current version of Make. (??? Still true? Old comment referred to
- 3.76.1.) */
-
-static const char *
-munge (const char *filename)
-{
- int len;
- const char *p, *q;
- char *dst, *buffer;
-
- for (p = filename, len = 0; *p; p++, len++)
- {
- switch (*p)
- {
- case ' ':
- case '\t':
- /* GNU make uses a weird quoting scheme for white space.
- A space or tab preceded by 2N+1 backslashes represents
- N backslashes followed by space; a space or tab
- preceded by 2N backslashes represents N backslashes at
- the end of a file name; and backslashes in other
- contexts should not be doubled. */
- for (q = p - 1; filename <= q && *q == '\\'; q--)
- len++;
- len++;
- break;
-
- case '$':
- /* '$' is quoted by doubling it. */
- len++;
- break;
- }
- }
-
- /* Now we know how big to make the buffer. */
- buffer = XNEWVEC (char, len + 1);
-
- for (p = filename, dst = buffer; *p; p++, dst++)
- {
- switch (*p)
- {
- case ' ':
- case '\t':
- for (q = p - 1; filename <= q && *q == '\\'; q--)
- *dst++ = '\\';
- *dst++ = '\\';
- break;
-
- case '$':
- *dst++ = '$';
- break;
-
- default:
- /* nothing */;
- }
- *dst = *p;
- }
-
- *dst = '\0';
- return buffer;
-}
-
-/* If T begins with any of the partial pathnames listed in d->vpathv,
- then advance T to point beyond that pathname. */
-static const char *
-apply_vpath (struct deps *d, const char *t)
-{
- if (d->vpathv)
- {
- unsigned int i;
- for (i = 0; i < d->nvpaths; i++)
- {
- if (!strncmp (d->vpathv[i], t, d->vpathlv[i]))
- {
- const char *p = t + d->vpathlv[i];
- if (!IS_DIR_SEPARATOR (*p))
- goto not_this_one;
-
- /* Do not simplify $(vpath)/../whatever. ??? Might not
- be necessary. */
- if (p[1] == '.' && p[2] == '.' && IS_DIR_SEPARATOR (p[3]))
- goto not_this_one;
-
- /* found a match */
- t = t + d->vpathlv[i] + 1;
- break;
- }
- not_this_one:;
- }
- }
-
- /* Remove leading ./ in any case. */
- while (t[0] == '.' && IS_DIR_SEPARATOR (t[1]))
- {
- t += 2;
- /* If we removed a leading ./, then also remove any /s after the
- first. */
- while (IS_DIR_SEPARATOR (t[0]))
- ++t;
- }
-
- return t;
-}
-
-/* Public routines. */
-
-struct deps *
-deps_init (void)
-{
- return XCNEW (struct deps);
-}
-
-void
-deps_free (struct deps *d)
-{
- unsigned int i;
-
- if (d->targetv)
- {
- for (i = 0; i < d->ntargets; i++)
- free ((void *) d->targetv[i]);
- free (d->targetv);
- }
-
- if (d->depv)
- {
- for (i = 0; i < d->ndeps; i++)
- free ((void *) d->depv[i]);
- free (d->depv);
- }
-
- if (d->vpathv)
- {
- for (i = 0; i < d->nvpaths; i++)
- free ((void *) d->vpathv[i]);
- free (d->vpathv);
- free (d->vpathlv);
- }
-
- free (d);
-}
-
-/* Adds a target T. We make a copy, so it need not be a permanent
- string. QUOTE is true if the string should be quoted. */
-void
-deps_add_target (struct deps *d, const char *t, int quote)
-{
- if (d->ntargets == d->targets_size)
- {
- d->targets_size = d->targets_size * 2 + 4;
- d->targetv = XRESIZEVEC (const char *, d->targetv, d->targets_size);
- }
-
- t = apply_vpath (d, t);
- if (quote)
- t = munge (t); /* Also makes permanent copy. */
- else
- t = xstrdup (t);
-
- d->targetv[d->ntargets++] = t;
-}
-
-/* Sets the default target if none has been given already. An empty
- string as the default target in interpreted as stdin. The string
- is quoted for MAKE. */
-void
-deps_add_default_target (struct deps *d, const char *tgt)
-{
- /* Only if we have no targets. */
- if (d->ntargets)
- return;
-
- if (tgt[0] == '\0')
- deps_add_target (d, "-", 1);
- else
- {
-#ifndef TARGET_OBJECT_SUFFIX
-# define TARGET_OBJECT_SUFFIX ".o"
-#endif
- const char *start = lbasename (tgt);
- char *o = (char *) alloca (strlen (start)
- + strlen (TARGET_OBJECT_SUFFIX) + 1);
- char *suffix;
-
- strcpy (o, start);
-
- suffix = strrchr (o, '.');
- if (!suffix)
- suffix = o + strlen (o);
- strcpy (suffix, TARGET_OBJECT_SUFFIX);
-
- deps_add_target (d, o, 1);
- }
-}
-
-void
-deps_add_dep (struct deps *d, const char *t)
-{
- t = munge (apply_vpath (d, t)); /* Also makes permanent copy. */
-
- if (d->ndeps == d->deps_size)
- {
- d->deps_size = d->deps_size * 2 + 8;
- d->depv = XRESIZEVEC (const char *, d->depv, d->deps_size);
- }
- d->depv[d->ndeps++] = t;
-}
-
-void
-deps_add_vpath (struct deps *d, const char *vpath)
-{
- const char *elem, *p;
- char *copy;
- size_t len;
-
- for (elem = vpath; *elem; elem = p)
- {
- for (p = elem; *p && *p != ':'; p++);
- len = p - elem;
- copy = XNEWVEC (char, len + 1);
- memcpy (copy, elem, len);
- copy[len] = '\0';
- if (*p == ':')
- p++;
-
- if (d->nvpaths == d->vpaths_size)
- {
- d->vpaths_size = d->vpaths_size * 2 + 8;
- d->vpathv = XRESIZEVEC (const char *, d->vpathv, d->vpaths_size);
- d->vpathlv = XRESIZEVEC (size_t, d->vpathlv, d->vpaths_size);
- }
- d->vpathv[d->nvpaths] = copy;
- d->vpathlv[d->nvpaths] = len;
- d->nvpaths++;
- }
-}
-
-void
-deps_write (const struct deps *d, FILE *fp, unsigned int colmax)
-{
- unsigned int size, i, column;
-
- column = 0;
- if (colmax && colmax < 34)
- colmax = 34;
-
- for (i = 0; i < d->ntargets; i++)
- {
- size = strlen (d->targetv[i]);
- column += size;
- if (colmax && column > colmax)
- {
- fputs (" \\\n ", fp);
- column = 1 + size;
- }
- if (i)
- {
- putc (' ', fp);
- column++;
- }
- fputs (d->targetv[i], fp);
- }
-
- putc (':', fp);
- putc (' ', fp);
- column += 2;
-
- for (i = 0; i < d->ndeps; i++)
- {
- size = strlen (d->depv[i]);
- column += size;
- if (colmax && column > colmax)
- {
- fputs (" \\\n ", fp);
- column = 1 + size;
- }
- if (i)
- {
- putc (' ', fp);
- column++;
- }
- fputs (d->depv[i], fp);
- }
- putc ('\n', fp);
-}
-
-void
-deps_phony_targets (const struct deps *d, FILE *fp)
-{
- unsigned int i;
-
- for (i = 1; i < d->ndeps; i++)
- {
- putc ('\n', fp);
- fputs (d->depv[i], fp);
- putc (':', fp);
- putc ('\n', fp);
- }
-}
-
-/* Write out a deps buffer to a file, in a form that can be read back
- with deps_restore. Returns nonzero on error, in which case the
- error number will be in errno. */
-
-int
-deps_save (struct deps *deps, FILE *f)
-{
- unsigned int i;
-
- /* The cppreader structure contains makefile dependences. Write out this
- structure. */
-
- /* The number of dependences. */
- if (fwrite (&deps->ndeps, sizeof (deps->ndeps), 1, f) != 1)
- return -1;
- /* The length of each dependence followed by the string. */
- for (i = 0; i < deps->ndeps; i++)
- {
- size_t num_to_write = strlen (deps->depv[i]);
- if (fwrite (&num_to_write, sizeof (size_t), 1, f) != 1)
- return -1;
- if (fwrite (deps->depv[i], num_to_write, 1, f) != 1)
- return -1;
- }
-
- return 0;
-}
-
-/* Read back dependency information written with deps_save into
- the deps buffer. The third argument may be NULL, in which case
- the dependency information is just skipped, or it may be a filename,
- in which case that filename is skipped. */
-
-int
-deps_restore (struct deps *deps, FILE *fd, const char *self)
-{
- unsigned int i, count;
- size_t num_to_read;
- size_t buf_size = 512;
- char *buf = XNEWVEC (char, buf_size);
-
- /* Number of dependences. */
- if (fread (&count, 1, sizeof (count), fd) != sizeof (count))
- return -1;
-
- /* The length of each dependence string, followed by the string. */
- for (i = 0; i < count; i++)
- {
- /* Read in # bytes in string. */
- if (fread (&num_to_read, 1, sizeof (size_t), fd) != sizeof (size_t))
- return -1;
- if (buf_size < num_to_read + 1)
- {
- buf_size = num_to_read + 1 + 127;
- buf = XRESIZEVEC (char, buf, buf_size);
- }
- if (fread (buf, 1, num_to_read, fd) != num_to_read)
- return -1;
- buf[num_to_read] = '\0';
-
- /* Generate makefile dependencies from .pch if -nopch-deps. */
- if (self != NULL && strcmp (buf, self) != 0)
- deps_add_dep (deps, buf);
- }
-
- free (buf);
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 17:20:50 +0000