]>
Commit | Line | Data |
---|---|---|
83ffe9cd | 1 | /* Copyright (C) 2009-2023 Free Software Foundation, Inc. |
0a35513e AH |
2 | Contributed by Richard Henderson <rth@redhat.com>. |
3 | ||
4 | This file is part of the GNU Transactional Memory Library (libitm). | |
5 | ||
6 | Libitm is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | Libitm is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
13 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | more details. | |
15 | ||
16 | Under Section 7 of GPL version 3, you are granted additional | |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
24 | ||
25 | #include "libitm_i.h" | |
26 | ||
27 | using namespace GTM; | |
28 | ||
29 | /* Mangling the names by hand requires that we know how size_t is handled. | |
30 | We've gotten the letter from autoconf, now substitute it into the names. | |
31 | Everything below uses X as a placeholder for clarity. */ | |
32 | ||
33 | #define S1(x,y) x##y | |
34 | #define S(x,y) S1(x,y) | |
35 | ||
36 | #define _ZnwX S(_Znw,MANGLE_SIZE_T) | |
37 | #define _ZnaX S(_Zna,MANGLE_SIZE_T) | |
c518678b | 38 | #define _ZdlPvX S(_ZdlPv,MANGLE_SIZE_T) |
0a35513e AH |
39 | #define _ZnwXRKSt9nothrow_t S(S(_Znw,MANGLE_SIZE_T),RKSt9nothrow_t) |
40 | #define _ZnaXRKSt9nothrow_t S(S(_Zna,MANGLE_SIZE_T),RKSt9nothrow_t) | |
c518678b | 41 | #define _ZdlPvXRKSt9nothrow_t S(S(_ZdlPv,MANGLE_SIZE_T),RKSt9nothrow_t) |
0a35513e AH |
42 | |
43 | #define _ZGTtnwX S(_ZGTtnw,MANGLE_SIZE_T) | |
44 | #define _ZGTtnaX S(_ZGTtna,MANGLE_SIZE_T) | |
c518678b | 45 | #define _ZGTtdlPvX S(_ZGTtdlPv,MANGLE_SIZE_T) |
0a35513e AH |
46 | #define _ZGTtnwXRKSt9nothrow_t S(S(_ZGTtnw,MANGLE_SIZE_T),RKSt9nothrow_t) |
47 | #define _ZGTtnaXRKSt9nothrow_t S(S(_ZGTtna,MANGLE_SIZE_T),RKSt9nothrow_t) | |
c518678b | 48 | #define _ZGTtdlPvXRKSt9nothrow_t S(S(_ZGTtdlPv,MANGLE_SIZE_T),RKSt9nothrow_t) |
0a35513e AH |
49 | |
50 | /* Everything from libstdc++ is weak, to avoid requiring that library | |
51 | to be linked into plain C applications using libitm.so. */ | |
52 | ||
53 | extern "C" { | |
54 | ||
c518678b TR |
55 | extern void *_ZnwX (size_t) __attribute__((weak)); |
56 | extern void _ZdlPv (void *) __attribute__((weak)); | |
57 | extern void _ZdlPvX (void *, size_t) __attribute__((weak)); | |
58 | extern void *_ZnaX (size_t) __attribute__((weak)); | |
59 | extern void _ZdaPv (void *) __attribute__((weak)); | |
0a35513e AH |
60 | |
61 | typedef const struct nothrow_t { } *c_nothrow_p; | |
62 | ||
63 | extern void *_ZnwXRKSt9nothrow_t (size_t, c_nothrow_p) __attribute__((weak)); | |
64 | extern void _ZdlPvRKSt9nothrow_t (void *, c_nothrow_p) __attribute__((weak)); | |
c518678b TR |
65 | extern void _ZdlPvXRKSt9nothrow_t |
66 | (void *, size_t, c_nothrow_p) __attribute__((weak)); | |
0a35513e AH |
67 | extern void *_ZnaXRKSt9nothrow_t (size_t, c_nothrow_p) __attribute__((weak)); |
68 | extern void _ZdaPvRKSt9nothrow_t (void *, c_nothrow_p) __attribute__((weak)); | |
69 | ||
6c59ffd1 | 70 | #if !defined (HAVE_ELF_STYLE_WEAKREF) |
c518678b TR |
71 | void *_ZnwX (size_t) { return NULL; } |
72 | void _ZdlPv (void *) { return; } | |
73 | void _ZdlPvX (void *, size_t) { return; } | |
74 | void *_ZnaX (size_t) { return NULL; } | |
75 | void _ZdaPv (void *) { return; } | |
76 | ||
77 | void *_ZnwXRKSt9nothrow_t (size_t, c_nothrow_p) { return NULL; } | |
78 | void _ZdlPvRKSt9nothrow_t (void *, c_nothrow_p) { return; } | |
79 | void _ZdlPvXRKSt9nothrow_t (void *, size_t, c_nothrow_p) { return; } | |
80 | void *_ZnaXRKSt9nothrow_t (size_t, c_nothrow_p) { return NULL; } | |
81 | void _ZdaPvRKSt9nothrow_t (void *, c_nothrow_p) { return; } | |
8cf36bb3 | 82 | #endif /* HAVE_ELF_STYLE_WEAKREF */ |
8851b429 | 83 | |
0a35513e AH |
84 | /* Wrap the delete nothrow symbols for usage with a single argument. |
85 | Perhaps should have a configure type check for this, because the | |
86 | std::nothrow_t reference argument is unused (empty class), and most | |
87 | targets don't actually need that second argument. So we _could_ | |
88 | invoke these functions as if they were a single argument free. */ | |
89 | static void | |
90 | del_opnt (void *ptr) | |
91 | { | |
92 | _ZdlPvRKSt9nothrow_t (ptr, NULL); | |
93 | } | |
94 | ||
95 | static void | |
96 | del_opvnt (void *ptr) | |
97 | { | |
98 | _ZdaPvRKSt9nothrow_t (ptr, NULL); | |
99 | } | |
100 | ||
c518678b TR |
101 | static void |
102 | delsz_opnt (void *ptr, size_t sz) | |
103 | { | |
104 | _ZdlPvXRKSt9nothrow_t (ptr, sz, NULL); | |
105 | } | |
106 | ||
0a35513e AH |
107 | /* Wrap: operator new (std::size_t sz) */ |
108 | void * | |
109 | _ZGTtnwX (size_t sz) | |
110 | { | |
111 | void *r = _ZnwX (sz); | |
112 | if (r) | |
113 | gtm_thr()->record_allocation (r, _ZdlPv); | |
114 | return r; | |
115 | } | |
116 | ||
117 | /* Wrap: operator new (std::size_t sz, const std::nothrow_t&) */ | |
118 | void * | |
119 | _ZGTtnwXRKSt9nothrow_t (size_t sz, c_nothrow_p nt) | |
120 | { | |
121 | void *r = _ZnwXRKSt9nothrow_t (sz, nt); | |
122 | if (r) | |
123 | gtm_thr()->record_allocation (r, del_opnt); | |
124 | return r; | |
125 | } | |
126 | ||
127 | /* Wrap: operator new[] (std::size_t sz) */ | |
128 | void * | |
129 | _ZGTtnaX (size_t sz) | |
130 | { | |
131 | void *r = _ZnaX (sz); | |
132 | if (r) | |
133 | gtm_thr()->record_allocation (r, _ZdaPv); | |
134 | return r; | |
135 | } | |
136 | ||
137 | /* Wrap: operator new[] (std::size_t sz, const std::nothrow_t& nothrow) */ | |
138 | void * | |
139 | _ZGTtnaXRKSt9nothrow_t (size_t sz, c_nothrow_p nt) | |
140 | { | |
141 | void *r = _ZnaXRKSt9nothrow_t (sz, nt); | |
142 | if (r) | |
143 | gtm_thr()->record_allocation (r, del_opvnt); | |
144 | return r; | |
145 | } | |
146 | ||
147 | /* Wrap: operator delete(void* ptr) */ | |
148 | void | |
149 | _ZGTtdlPv (void *ptr) | |
150 | { | |
151 | if (ptr) | |
152 | gtm_thr()->forget_allocation (ptr, _ZdlPv); | |
153 | } | |
154 | ||
155 | /* Wrap: operator delete (void *ptr, const std::nothrow_t&) */ | |
156 | void | |
157 | _ZGTtdlPvRKSt9nothrow_t (void *ptr, c_nothrow_p nt UNUSED) | |
158 | { | |
159 | if (ptr) | |
160 | gtm_thr()->forget_allocation (ptr, del_opnt); | |
161 | } | |
162 | ||
163 | /* Wrap: operator delete[] (void *ptr) */ | |
164 | void | |
165 | _ZGTtdaPv (void *ptr) | |
166 | { | |
167 | if (ptr) | |
168 | gtm_thr()->forget_allocation (ptr, _ZdaPv); | |
169 | } | |
170 | ||
171 | /* Wrap: operator delete[] (void *ptr, const std::nothrow_t&) */ | |
172 | void | |
173 | _ZGTtdaPvRKSt9nothrow_t (void *ptr, c_nothrow_p nt UNUSED) | |
174 | { | |
175 | if (ptr) | |
176 | gtm_thr()->forget_allocation (ptr, del_opvnt); | |
177 | } | |
178 | ||
c518678b TR |
179 | /* Wrap: operator delete(void* ptr, std::size_t sz) */ |
180 | void | |
181 | _ZGTtdlPvX (void *ptr, size_t sz) | |
182 | { | |
183 | if (ptr) | |
184 | gtm_thr()->forget_allocation (ptr, sz, _ZdlPvX); | |
185 | } | |
186 | ||
187 | /* Wrap: operator delete (void *ptr, std::size_t sz, const std::nothrow_t&) */ | |
188 | void | |
189 | _ZGTtdlPvXRKSt9nothrow_t (void *ptr, size_t sz, c_nothrow_p nt UNUSED) | |
190 | { | |
191 | if (ptr) | |
192 | gtm_thr()->forget_allocation (ptr, sz, delsz_opnt); | |
193 | } | |
194 | ||
0a35513e | 195 | } // extern "C" |