1/* mtrace API for `malloc'.
2 Copyright (C) 1991-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#if !IS_IN (libc)
20# include "mtrace-impl.c"
21#else
22# include <shlib-compat.h>
23# include <libc-symbols.h>
24#endif
25
26#if IS_IN (libc) && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_34)
27/* Compatibility symbols that were introduced to help break at allocation sites
28 for specific memory allocations. This is unusable with ASLR, although gdb
29 may allow predictable allocation addresses. Even then, gdb has watchpoint
30 and conditional breakpoint support which should provide the same
31 functionality without having this kludge. These symbols are preserved in
32 case some applications ended up linking against them but they don't actually
33 do anything anymore; not that they did much before anyway. */
34
35void *mallwatch;
36compat_symbol (libc, mallwatch, mallwatch, GLIBC_2_0);
37
38void
39tr_break (void)
40{
41}
42compat_symbol (libc, tr_break, tr_break, GLIBC_2_0);
43#endif
44
45
46void
47mtrace (void)
48{
49#if !IS_IN (libc)
50 do_mtrace ();
51#endif
52}
53
54void
55muntrace (void)
56{
57#if !IS_IN (libc)
58 do_muntrace ();
59#endif
60}
61