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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.
99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/* dirfd.c -- return the file descriptor associated with an open DIR*
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Copyright (C) 2001, 2006, 2008-2016 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Jim Meyering. */
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#include <config.h>
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#include <dirent.h>
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#include <errno.h>
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#ifdef __KLIBC__
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# include <stdlib.h>
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# include <io.h>
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static struct dirp_fd_list
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{
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DIR *dirp;
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int fd;
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struct dirp_fd_list *next;
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} *dirp_fd_start = NULL;
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/* Register fd associated with dirp to dirp_fd_list. */
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int
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_gl_register_dirp_fd (int fd, DIR *dirp)
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{
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struct dirp_fd_list *new_dirp_fd = malloc (sizeof *new_dirp_fd);
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if (!new_dirp_fd)
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return -1;
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new_dirp_fd->dirp = dirp;
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new_dirp_fd->fd = fd;
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new_dirp_fd->next = dirp_fd_start;
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dirp_fd_start = new_dirp_fd;
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return 0;
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}
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/* Unregister fd from dirp_fd_list with closing it */
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void
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_gl_unregister_dirp_fd (int fd)
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{
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struct dirp_fd_list *dirp_fd;
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struct dirp_fd_list *dirp_fd_prev;
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for (dirp_fd_prev = NULL, dirp_fd = dirp_fd_start; dirp_fd;
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dirp_fd_prev = dirp_fd, dirp_fd = dirp_fd->next)
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{
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if (dirp_fd->fd == fd)
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{
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if (dirp_fd_prev)
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dirp_fd_prev->next = dirp_fd->next;
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else /* dirp_fd == dirp_fd_start */
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dirp_fd_start = dirp_fd_start->next;
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close (fd);
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free (dirp_fd);
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break;
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}
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}
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}
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#endif
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int
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dirfd (DIR *dir_p)
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{
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int fd = DIR_TO_FD (dir_p);
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if (fd == -1)
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#ifndef __KLIBC__
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errno = ENOTSUP;
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#else
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{
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struct dirp_fd_list *dirp_fd;
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for (dirp_fd = dirp_fd_start; dirp_fd; dirp_fd = dirp_fd->next)
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if (dirp_fd->dirp == dir_p)
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return dirp_fd->fd;
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errno = EINVAL;
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}
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#endif
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return fd;
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}
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