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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.
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/* realloc() function that is glibc compatible.
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Copyright (C) 1997, 2003-2004, 2006-2007, 2009-2016 Free Software
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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 and Bruno Haible */
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#define _GL_USE_STDLIB_ALLOC 1
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#include <config.h>
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/* Only the AC_FUNC_REALLOC macro defines 'realloc' already in config.h. */
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#ifdef realloc
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# define NEED_REALLOC_GNU 1
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/* Whereas the gnulib module 'realloc-gnu' defines HAVE_REALLOC_GNU. */
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#elif GNULIB_REALLOC_GNU && !HAVE_REALLOC_GNU
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# define NEED_REALLOC_GNU 1
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#endif
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/* Infer the properties of the system's malloc function.
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The gnulib module 'malloc-gnu' defines HAVE_MALLOC_GNU. */
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#if GNULIB_MALLOC_GNU && HAVE_MALLOC_GNU
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# define SYSTEM_MALLOC_GLIBC_COMPATIBLE 1
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#endif
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#include <stdlib.h>
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#include <errno.h>
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/* Change the size of an allocated block of memory P to N bytes,
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with error checking. If N is zero, change it to 1. If P is NULL,
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use malloc. */
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void *
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rpl_realloc (void *p, size_t n)
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{
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void *result;
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#if NEED_REALLOC_GNU
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if (n == 0)
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{
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n = 1;
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/* In theory realloc might fail, so don't rely on it to free. */
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free (p);
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p = NULL;
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}
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#endif
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if (p == NULL)
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{
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#if GNULIB_REALLOC_GNU && !NEED_REALLOC_GNU && !SYSTEM_MALLOC_GLIBC_COMPATIBLE
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if (n == 0)
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n = 1;
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#endif
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result = malloc (n);
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}
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else
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result = realloc (p, n);
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#if !HAVE_REALLOC_POSIX
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if (result == NULL)
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errno = ENOMEM;
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#endif
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return result;
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}
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