73cc72729a
This patch moves the gdb/gnulib subdirectory to the top level. It adjusts the top-level build system to build gnulib when necessary, and changes gdb to use this. However, gdbserver still builds its own copy of gnulib, just from the new source location. A small hack was needed to ensure that gnulib is only built when gdb is enabled. The Makefile only provides an ordering -- the directory must be mentioned in configdirs to actually be compiled at all. Most of the patch is just a "git mv" of gnulib, though a few minor path adjustments were needed in some files there. Tested by the buildbot. ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * MAINTAINERS: Add gnulib. * gnulib: New directory, move from gdb/gnulib. * configure.ac (host_libs): Add gnulib. * configure: Rebuild. * Makefile.def (host_modules, dependencies): Add gnulib. * Makefile.in: Rebuild. gdb/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * gnulib: Move directory to top-level. * configure.ac: Don't configure gnulib. * configure: Rebuild. * common/common-defs.h: Use new path to gnulib. * Makefile.in (GNULIB_BUILDDIR): Now ../gnulib. (GNULIB_H): Remove. (INCGNU): Look in new gnulib location. (HFILES_NO_SRCDIR): Remove gnulib files. (SUBDIR, REQUIRED_SUBDIRS): Remove gnulib. (generated_files): Remove GNULIB_H. ($(LIBGNU), all-lib): Remove targets. (distclean): Don't mention GNULIB_BUILDDIR. ($(GNULIB_BUILDDIR)/Makefile): Remove target. gdb/gdbserver/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * configure.ac: Use new path to gnulib. * configure: Rebuild. * Makefile.in (INCGNU, $(GNULIB_BUILDDIR)/Makefile): Use new path to gnulib. gnulib/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * update-gnulib.sh: Adjust paths. * Makefile.in: Adjust paths. * configure.ac: Adjust paths. Use ACX_LARGEFILE. * configure: Rebuild.
87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
/* Duplicate an open file descriptor.
|
|
|
|
Copyright (C) 2011-2016 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 <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <config.h>
|
|
|
|
/* Specification. */
|
|
#include <unistd.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#include "msvc-inval.h"
|
|
|
|
#undef dup
|
|
|
|
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
|
|
static int
|
|
dup_nothrow (int fd)
|
|
{
|
|
int result;
|
|
|
|
TRY_MSVC_INVAL
|
|
{
|
|
result = dup (fd);
|
|
}
|
|
CATCH_MSVC_INVAL
|
|
{
|
|
result = -1;
|
|
errno = EBADF;
|
|
}
|
|
DONE_MSVC_INVAL;
|
|
|
|
return result;
|
|
}
|
|
#elif defined __KLIBC__
|
|
# include <fcntl.h>
|
|
# include <sys/stat.h>
|
|
|
|
# include <InnoTekLIBC/backend.h>
|
|
|
|
static int
|
|
dup_nothrow (int fd)
|
|
{
|
|
int dupfd;
|
|
struct stat sbuf;
|
|
|
|
dupfd = dup (fd);
|
|
if (dupfd == -1 && errno == ENOTSUP \
|
|
&& !fstat (fd, &sbuf) && S_ISDIR (sbuf.st_mode))
|
|
{
|
|
char path[_MAX_PATH];
|
|
|
|
/* Get a path from fd */
|
|
if (!__libc_Back_ioFHToPath (fd, path, sizeof (path)))
|
|
dupfd = open (path, O_RDONLY);
|
|
}
|
|
|
|
return dupfd;
|
|
}
|
|
#else
|
|
# define dup_nothrow dup
|
|
#endif
|
|
|
|
int
|
|
rpl_dup (int fd)
|
|
{
|
|
int result = dup_nothrow (fd);
|
|
#if REPLACE_FCHDIR
|
|
if (result >= 0)
|
|
result = _gl_register_dup (fd, result);
|
|
#endif
|
|
return result;
|
|
}
|