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https://github.com/SwallowOS/xorg_lib_libXdmcp
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498cce64f1
Maybe a _X_WEAK macro could be added to <X11/Xfuncproto.h>, but that could actually encourage use of __attribute__((weak)), what is not intended. This change uses the same semantics used in libXfont to declare weak symbols that are overridden by the ones defined in the X Server.
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* $Xorg: Alloc.c,v 1.4 2001/02/09 02:03:48 xorgcvs Exp $
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*
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*
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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* *
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* Author: Keith Packard, MIT X Consortium
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*/
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/* $XFree86: xc/lib/Xdmcp/Alloc.c,v 3.4 2001/07/25 15:04:50 dawes Exp $ */
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/* stubs for use when Xalloc, Xrealloc and Xfree are not defined */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <X11/Xos.h>
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#include <X11/X.h>
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#include <X11/Xmd.h>
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#include <X11/Xdmcp.h>
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#include <stdlib.h>
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/* this probably works for Mach-O too, but probably not for PE */
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#if defined(__ELF__) && defined(__GNUC__) && (__GNUC__ >= 3)
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#define weak __attribute__((weak))
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#else
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#define weak
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#endif
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#ifdef __SUNPRO_C
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#pragma weak Xalloc
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#pragma weak Xrealloc
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#pragma weak Xfree
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#endif
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weak void *
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Xalloc (unsigned long amount)
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{
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if (amount == 0)
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amount = 1;
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return malloc (amount);
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}
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weak void *
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Xrealloc (void *old, unsigned long amount)
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{
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if (amount == 0)
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amount = 1;
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if (!old)
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return malloc (amount);
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return realloc ((char *) old, amount);
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}
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weak void
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Xfree (void *old)
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{
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if (old)
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free ((char *) old);
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}
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