mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
9c9d63b15a
This fixes PR27184, a failure to compile gdb due to cdefs.h being out of sync with glibc on ppc64le targets which are compiled with -mabi=ieeelongdouble and glibc 2.32. Likewise, update usage of _GL_ATTRIBUTE_FORMAT_PRINTF to _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD. Likewise, disable newly added rpl_free gnulib api in gdbserver support libraries. Likewise, undefine read/write macros before redefining them on mingw targets. Likewise, wrap C++ usage of free with GNULIB_NAMESPACE namespace as needed. Change-Id: I86517613c0d8ac8f5ea45bbc4ebe2b54a3aef29f
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/* Concatenate two arbitrary file names.
|
|
|
|
Copyright (C) 1996-2007, 2009-2021 Free Software Foundation, Inc.
|
|
|
|
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 3 of the License, 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, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* Written by Jim Meyering. */
|
|
|
|
#include <config.h>
|
|
|
|
/* Specification. */
|
|
#include "filenamecat.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "basename-lgpl.h"
|
|
#include "filename.h"
|
|
|
|
#if ! HAVE_MEMPCPY && ! defined mempcpy
|
|
# define mempcpy(D, S, N) ((void *) ((char *) memcpy (D, S, N) + (N)))
|
|
#endif
|
|
|
|
/* Concatenate two file name components, DIR and BASE, in
|
|
newly-allocated storage and return the result.
|
|
The resulting file name F is such that the commands "ls F" and "(cd
|
|
DIR; ls ./BASE)" refer to the same file. If necessary, put
|
|
a separator between DIR and BASE in the result. Typically this
|
|
separator is "/", but in rare cases it might be ".".
|
|
In any case, if BASE_IN_RESULT is non-NULL, set
|
|
*BASE_IN_RESULT to point to the copy of BASE at the end of the
|
|
returned concatenation.
|
|
|
|
If malloc fails, return NULL with errno set. */
|
|
|
|
char *
|
|
mfile_name_concat (char const *dir, char const *base, char **base_in_result)
|
|
{
|
|
char const *dirbase = last_component (dir);
|
|
size_t dirbaselen = base_len (dirbase);
|
|
size_t dirlen = dirbase - dir + dirbaselen;
|
|
size_t baselen = strlen (base);
|
|
char sep = '\0';
|
|
if (dirbaselen)
|
|
{
|
|
/* DIR is not a file system root, so separate with / if needed. */
|
|
if (! ISSLASH (dir[dirlen - 1]) && ! ISSLASH (*base))
|
|
sep = '/';
|
|
}
|
|
else if (ISSLASH (*base))
|
|
{
|
|
/* DIR is a file system root and BASE begins with a slash, so
|
|
separate with ".". For example, if DIR is "/" and BASE is
|
|
"/foo" then return "/./foo", as "//foo" would be wrong on
|
|
some POSIX systems. A fancier algorithm could omit "." in
|
|
some cases but is not worth the trouble. */
|
|
sep = '.';
|
|
}
|
|
|
|
char *p_concat = malloc (dirlen + (sep != '\0') + baselen + 1);
|
|
if (p_concat == NULL)
|
|
return NULL;
|
|
|
|
{
|
|
char *p;
|
|
|
|
p = mempcpy (p_concat, dir, dirlen);
|
|
*p = sep;
|
|
p += sep != '\0';
|
|
|
|
if (base_in_result)
|
|
*base_in_result = p;
|
|
|
|
p = mempcpy (p, base, baselen);
|
|
*p = '\0';
|
|
}
|
|
|
|
return p_concat;
|
|
}
|