xref: /freebsd/contrib/llvm-project/compiler-rt/lib/builtins/apple_versioning.c (revision 02e9120893770924227138ba49df1edb3896112a)
1 //===-- apple_versioning.c - Adds versioning symbols for ld ---------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #if __APPLE__
10 #include <Availability.h>
11 
12 #if __IPHONE_OS_VERSION_MIN_REQUIRED
13 #define NOT_HERE_BEFORE_10_6(sym)
14 #define NOT_HERE_IN_10_8_AND_EARLIER(sym)                                      \
15   extern const char sym##_tmp61 __asm("$ld$hide$os6.1$_" #sym);                \
16   __attribute__((visibility("default"))) const char sym##_tmp61 = 0;           \
17   extern const char sym##_tmp60 __asm("$ld$hide$os6.0$_" #sym);                \
18   __attribute__((visibility("default"))) const char sym##_tmp60 = 0;           \
19   extern const char sym##_tmp51 __asm("$ld$hide$os5.1$_" #sym);                \
20   __attribute__((visibility("default"))) const char sym##_tmp51 = 0;           \
21   extern const char sym##_tmp50 __asm("$ld$hide$os5.0$_" #sym);                \
22   __attribute__((visibility("default"))) const char sym##_tmp50 = 0;
23 #else
24 #define NOT_HERE_BEFORE_10_6(sym)                                              \
25   extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym);                \
26   __attribute__((visibility("default"))) const char sym##_tmp4 = 0;            \
27   extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym);                \
28   __attribute__((visibility("default"))) const char sym##_tmp5 = 0;
29 #define NOT_HERE_IN_10_8_AND_EARLIER(sym)                                      \
30   extern const char sym##_tmp8 __asm("$ld$hide$os10.8$_" #sym);                \
31   __attribute__((visibility("default"))) const char sym##_tmp8 = 0;            \
32   extern const char sym##_tmp7 __asm("$ld$hide$os10.7$_" #sym);                \
33   __attribute__((visibility("default"))) const char sym##_tmp7 = 0;            \
34   extern const char sym##_tmp6 __asm("$ld$hide$os10.6$_" #sym);                \
35   __attribute__((visibility("default"))) const char sym##_tmp6 = 0;
36 #endif
37 
38 // Symbols in libSystem.dylib in 10.6 and later,
39 //  but are in libgcc_s.dylib in earlier versions
40 
41 NOT_HERE_BEFORE_10_6(__absvdi2)
42 NOT_HERE_BEFORE_10_6(__absvsi2)
43 NOT_HERE_BEFORE_10_6(__absvti2)
44 NOT_HERE_BEFORE_10_6(__addvdi3)
45 NOT_HERE_BEFORE_10_6(__addvsi3)
46 NOT_HERE_BEFORE_10_6(__addvti3)
47 NOT_HERE_BEFORE_10_6(__ashldi3)
48 NOT_HERE_BEFORE_10_6(__ashlti3)
49 NOT_HERE_BEFORE_10_6(__ashrdi3)
50 NOT_HERE_BEFORE_10_6(__ashrti3)
51 NOT_HERE_BEFORE_10_6(__clear_cache)
52 NOT_HERE_BEFORE_10_6(__clzdi2)
53 NOT_HERE_BEFORE_10_6(__clzsi2)
54 NOT_HERE_BEFORE_10_6(__clzti2)
55 NOT_HERE_BEFORE_10_6(__cmpdi2)
56 NOT_HERE_BEFORE_10_6(__cmpti2)
57 NOT_HERE_BEFORE_10_6(__ctzdi2)
58 NOT_HERE_BEFORE_10_6(__ctzsi2)
59 NOT_HERE_BEFORE_10_6(__ctzti2)
60 NOT_HERE_BEFORE_10_6(__divdc3)
61 NOT_HERE_BEFORE_10_6(__divdi3)
62 NOT_HERE_BEFORE_10_6(__divsc3)
63 NOT_HERE_BEFORE_10_6(__divtc3)
64 NOT_HERE_BEFORE_10_6(__divti3)
65 NOT_HERE_BEFORE_10_6(__divxc3)
66 NOT_HERE_BEFORE_10_6(__enable_execute_stack)
67 NOT_HERE_BEFORE_10_6(__ffsdi2)
68 NOT_HERE_BEFORE_10_6(__ffsti2)
69 NOT_HERE_BEFORE_10_6(__fixdfdi)
70 NOT_HERE_BEFORE_10_6(__fixdfti)
71 NOT_HERE_BEFORE_10_6(__fixsfdi)
72 NOT_HERE_BEFORE_10_6(__fixsfti)
73 NOT_HERE_BEFORE_10_6(__fixtfdi)
74 NOT_HERE_BEFORE_10_6(__fixunsdfdi)
75 NOT_HERE_BEFORE_10_6(__fixunsdfsi)
76 NOT_HERE_BEFORE_10_6(__fixunsdfti)
77 NOT_HERE_BEFORE_10_6(__fixunssfdi)
78 NOT_HERE_BEFORE_10_6(__fixunssfsi)
79 NOT_HERE_BEFORE_10_6(__fixunssfti)
80 NOT_HERE_BEFORE_10_6(__fixunstfdi)
81 NOT_HERE_BEFORE_10_6(__fixunsxfdi)
82 NOT_HERE_BEFORE_10_6(__fixunsxfsi)
83 NOT_HERE_BEFORE_10_6(__fixunsxfti)
84 NOT_HERE_BEFORE_10_6(__fixxfdi)
85 NOT_HERE_BEFORE_10_6(__fixxfti)
86 NOT_HERE_BEFORE_10_6(__floatdidf)
87 NOT_HERE_BEFORE_10_6(__floatdisf)
88 NOT_HERE_BEFORE_10_6(__floatditf)
89 NOT_HERE_BEFORE_10_6(__floatdixf)
90 NOT_HERE_BEFORE_10_6(__floattidf)
91 NOT_HERE_BEFORE_10_6(__floattisf)
92 NOT_HERE_BEFORE_10_6(__floattixf)
93 NOT_HERE_BEFORE_10_6(__floatundidf)
94 NOT_HERE_BEFORE_10_6(__floatundisf)
95 NOT_HERE_BEFORE_10_6(__floatunditf)
96 NOT_HERE_BEFORE_10_6(__floatundixf)
97 NOT_HERE_BEFORE_10_6(__floatuntidf)
98 NOT_HERE_BEFORE_10_6(__floatuntisf)
99 NOT_HERE_BEFORE_10_6(__floatuntixf)
100 NOT_HERE_BEFORE_10_6(__gcc_personality_v0)
101 NOT_HERE_BEFORE_10_6(__lshrdi3)
102 NOT_HERE_BEFORE_10_6(__lshrti3)
103 NOT_HERE_BEFORE_10_6(__moddi3)
104 NOT_HERE_BEFORE_10_6(__modti3)
105 NOT_HERE_BEFORE_10_6(__muldc3)
106 NOT_HERE_BEFORE_10_6(__muldi3)
107 NOT_HERE_BEFORE_10_6(__mulsc3)
108 NOT_HERE_BEFORE_10_6(__multc3)
109 NOT_HERE_BEFORE_10_6(__multi3)
110 NOT_HERE_BEFORE_10_6(__mulvdi3)
111 NOT_HERE_BEFORE_10_6(__mulvsi3)
112 NOT_HERE_BEFORE_10_6(__mulvti3)
113 NOT_HERE_BEFORE_10_6(__mulxc3)
114 NOT_HERE_BEFORE_10_6(__negdi2)
115 NOT_HERE_BEFORE_10_6(__negti2)
116 NOT_HERE_BEFORE_10_6(__negvdi2)
117 NOT_HERE_BEFORE_10_6(__negvsi2)
118 NOT_HERE_BEFORE_10_6(__negvti2)
119 NOT_HERE_BEFORE_10_6(__paritydi2)
120 NOT_HERE_BEFORE_10_6(__paritysi2)
121 NOT_HERE_BEFORE_10_6(__parityti2)
122 NOT_HERE_BEFORE_10_6(__popcountdi2)
123 NOT_HERE_BEFORE_10_6(__popcountsi2)
124 NOT_HERE_BEFORE_10_6(__popcountti2)
125 NOT_HERE_BEFORE_10_6(__powidf2)
126 NOT_HERE_BEFORE_10_6(__powisf2)
127 NOT_HERE_BEFORE_10_6(__powitf2)
128 NOT_HERE_BEFORE_10_6(__powixf2)
129 NOT_HERE_BEFORE_10_6(__subvdi3)
130 NOT_HERE_BEFORE_10_6(__subvsi3)
131 NOT_HERE_BEFORE_10_6(__subvti3)
132 NOT_HERE_BEFORE_10_6(__ucmpdi2)
133 NOT_HERE_BEFORE_10_6(__ucmpti2)
134 NOT_HERE_BEFORE_10_6(__udivdi3)
135 NOT_HERE_BEFORE_10_6(__udivmoddi4)
136 NOT_HERE_BEFORE_10_6(__udivmodti4)
137 NOT_HERE_BEFORE_10_6(__udivti3)
138 NOT_HERE_BEFORE_10_6(__umoddi3)
139 NOT_HERE_BEFORE_10_6(__umodti3)
140 
141 #if __powerpc__
142 NOT_HERE_BEFORE_10_6(__gcc_qadd)
143 NOT_HERE_BEFORE_10_6(__gcc_qdiv)
144 NOT_HERE_BEFORE_10_6(__gcc_qmul)
145 NOT_HERE_BEFORE_10_6(__gcc_qsub)
146 NOT_HERE_BEFORE_10_6(__trampoline_setup)
147 #endif // __powerpc__
148 
149 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_compare_exchange)
150 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_compare_exchange_1)
151 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_compare_exchange_2)
152 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_compare_exchange_4)
153 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_compare_exchange_8)
154 
155 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_exchange)
156 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_exchange_1)
157 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_exchange_2)
158 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_exchange_4)
159 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_exchange_8)
160 
161 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_add_1)
162 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_add_2)
163 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_add_4)
164 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_add_8)
165 
166 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_and_1)
167 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_and_2)
168 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_and_4)
169 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_and_8)
170 
171 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_or_1)
172 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_or_2)
173 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_or_4)
174 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_or_8)
175 
176 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_sub_1)
177 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_sub_2)
178 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_sub_4)
179 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_sub_8)
180 
181 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_xor_1)
182 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_xor_2)
183 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_xor_4)
184 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_fetch_xor_8)
185 
186 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_load)
187 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_load_1)
188 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_load_2)
189 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_load_4)
190 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_load_8)
191 
192 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_store)
193 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_store_1)
194 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_store_2)
195 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_store_4)
196 NOT_HERE_IN_10_8_AND_EARLIER(__atomic_store_8)
197 
198 #if __arm__ && __DYNAMIC__
199 #define NOT_HERE_UNTIL_AFTER_4_3(sym)                                          \
200   extern const char sym##_tmp1 __asm("$ld$hide$os3.0$_" #sym);                 \
201   __attribute__((visibility("default"))) const char sym##_tmp1 = 0;            \
202   extern const char sym##_tmp2 __asm("$ld$hide$os3.1$_" #sym);                 \
203   __attribute__((visibility("default"))) const char sym##_tmp2 = 0;            \
204   extern const char sym##_tmp3 __asm("$ld$hide$os3.2$_" #sym);                 \
205   __attribute__((visibility("default"))) const char sym##_tmp3 = 0;            \
206   extern const char sym##_tmp4 __asm("$ld$hide$os4.0$_" #sym);                 \
207   __attribute__((visibility("default"))) const char sym##_tmp4 = 0;            \
208   extern const char sym##_tmp5 __asm("$ld$hide$os4.1$_" #sym);                 \
209   __attribute__((visibility("default"))) const char sym##_tmp5 = 0;            \
210   extern const char sym##_tmp6 __asm("$ld$hide$os4.2$_" #sym);                 \
211   __attribute__((visibility("default"))) const char sym##_tmp6 = 0;            \
212   extern const char sym##_tmp7 __asm("$ld$hide$os4.3$_" #sym);                 \
213   __attribute__((visibility("default"))) const char sym##_tmp7 = 0;
214 
215 NOT_HERE_UNTIL_AFTER_4_3(__absvdi2)
216 NOT_HERE_UNTIL_AFTER_4_3(__absvsi2)
217 NOT_HERE_UNTIL_AFTER_4_3(__adddf3)
218 NOT_HERE_UNTIL_AFTER_4_3(__adddf3vfp)
219 NOT_HERE_UNTIL_AFTER_4_3(__addsf3)
220 NOT_HERE_UNTIL_AFTER_4_3(__addsf3vfp)
221 NOT_HERE_UNTIL_AFTER_4_3(__addvdi3)
222 NOT_HERE_UNTIL_AFTER_4_3(__addvsi3)
223 NOT_HERE_UNTIL_AFTER_4_3(__ashldi3)
224 NOT_HERE_UNTIL_AFTER_4_3(__ashrdi3)
225 NOT_HERE_UNTIL_AFTER_4_3(__bswapdi2)
226 NOT_HERE_UNTIL_AFTER_4_3(__bswapsi2)
227 NOT_HERE_UNTIL_AFTER_4_3(__clzdi2)
228 NOT_HERE_UNTIL_AFTER_4_3(__clzsi2)
229 NOT_HERE_UNTIL_AFTER_4_3(__cmpdi2)
230 NOT_HERE_UNTIL_AFTER_4_3(__ctzdi2)
231 NOT_HERE_UNTIL_AFTER_4_3(__ctzsi2)
232 NOT_HERE_UNTIL_AFTER_4_3(__divdc3)
233 NOT_HERE_UNTIL_AFTER_4_3(__divdf3)
234 NOT_HERE_UNTIL_AFTER_4_3(__divdf3vfp)
235 NOT_HERE_UNTIL_AFTER_4_3(__divdi3)
236 NOT_HERE_UNTIL_AFTER_4_3(__divsc3)
237 NOT_HERE_UNTIL_AFTER_4_3(__divsf3)
238 NOT_HERE_UNTIL_AFTER_4_3(__divsf3vfp)
239 NOT_HERE_UNTIL_AFTER_4_3(__divsi3)
240 NOT_HERE_UNTIL_AFTER_4_3(__eqdf2)
241 NOT_HERE_UNTIL_AFTER_4_3(__eqdf2vfp)
242 NOT_HERE_UNTIL_AFTER_4_3(__eqsf2)
243 NOT_HERE_UNTIL_AFTER_4_3(__eqsf2vfp)
244 NOT_HERE_UNTIL_AFTER_4_3(__extendsfdf2)
245 NOT_HERE_UNTIL_AFTER_4_3(__extendsfdf2vfp)
246 NOT_HERE_UNTIL_AFTER_4_3(__ffsdi2)
247 NOT_HERE_UNTIL_AFTER_4_3(__fixdfdi)
248 NOT_HERE_UNTIL_AFTER_4_3(__fixdfsi)
249 NOT_HERE_UNTIL_AFTER_4_3(__fixdfsivfp)
250 NOT_HERE_UNTIL_AFTER_4_3(__fixsfdi)
251 NOT_HERE_UNTIL_AFTER_4_3(__fixsfsi)
252 NOT_HERE_UNTIL_AFTER_4_3(__fixsfsivfp)
253 NOT_HERE_UNTIL_AFTER_4_3(__fixunsdfdi)
254 NOT_HERE_UNTIL_AFTER_4_3(__fixunsdfsi)
255 NOT_HERE_UNTIL_AFTER_4_3(__fixunsdfsivfp)
256 NOT_HERE_UNTIL_AFTER_4_3(__fixunssfdi)
257 NOT_HERE_UNTIL_AFTER_4_3(__fixunssfsi)
258 NOT_HERE_UNTIL_AFTER_4_3(__fixunssfsivfp)
259 NOT_HERE_UNTIL_AFTER_4_3(__floatdidf)
260 NOT_HERE_UNTIL_AFTER_4_3(__floatdisf)
261 NOT_HERE_UNTIL_AFTER_4_3(__floatsidf)
262 NOT_HERE_UNTIL_AFTER_4_3(__floatsidfvfp)
263 NOT_HERE_UNTIL_AFTER_4_3(__floatsisf)
264 NOT_HERE_UNTIL_AFTER_4_3(__floatsisfvfp)
265 NOT_HERE_UNTIL_AFTER_4_3(__floatundidf)
266 NOT_HERE_UNTIL_AFTER_4_3(__floatundisf)
267 NOT_HERE_UNTIL_AFTER_4_3(__floatunsidf)
268 NOT_HERE_UNTIL_AFTER_4_3(__floatunsisf)
269 NOT_HERE_UNTIL_AFTER_4_3(__floatunssidfvfp)
270 NOT_HERE_UNTIL_AFTER_4_3(__floatunssisfvfp)
271 NOT_HERE_UNTIL_AFTER_4_3(__gedf2)
272 NOT_HERE_UNTIL_AFTER_4_3(__gedf2vfp)
273 NOT_HERE_UNTIL_AFTER_4_3(__gesf2)
274 NOT_HERE_UNTIL_AFTER_4_3(__gesf2vfp)
275 NOT_HERE_UNTIL_AFTER_4_3(__gtdf2)
276 NOT_HERE_UNTIL_AFTER_4_3(__gtdf2vfp)
277 NOT_HERE_UNTIL_AFTER_4_3(__gtsf2)
278 NOT_HERE_UNTIL_AFTER_4_3(__gtsf2vfp)
279 NOT_HERE_UNTIL_AFTER_4_3(__ledf2)
280 NOT_HERE_UNTIL_AFTER_4_3(__ledf2vfp)
281 NOT_HERE_UNTIL_AFTER_4_3(__lesf2)
282 NOT_HERE_UNTIL_AFTER_4_3(__lesf2vfp)
283 NOT_HERE_UNTIL_AFTER_4_3(__lshrdi3)
284 NOT_HERE_UNTIL_AFTER_4_3(__ltdf2)
285 NOT_HERE_UNTIL_AFTER_4_3(__ltdf2vfp)
286 NOT_HERE_UNTIL_AFTER_4_3(__ltsf2)
287 NOT_HERE_UNTIL_AFTER_4_3(__ltsf2vfp)
288 NOT_HERE_UNTIL_AFTER_4_3(__moddi3)
289 NOT_HERE_UNTIL_AFTER_4_3(__modsi3)
290 NOT_HERE_UNTIL_AFTER_4_3(__muldc3)
291 NOT_HERE_UNTIL_AFTER_4_3(__muldf3)
292 NOT_HERE_UNTIL_AFTER_4_3(__muldf3vfp)
293 NOT_HERE_UNTIL_AFTER_4_3(__muldi3)
294 NOT_HERE_UNTIL_AFTER_4_3(__mulsc3)
295 NOT_HERE_UNTIL_AFTER_4_3(__mulsf3)
296 NOT_HERE_UNTIL_AFTER_4_3(__mulsf3vfp)
297 NOT_HERE_UNTIL_AFTER_4_3(__mulvdi3)
298 NOT_HERE_UNTIL_AFTER_4_3(__mulvsi3)
299 NOT_HERE_UNTIL_AFTER_4_3(__nedf2)
300 NOT_HERE_UNTIL_AFTER_4_3(__nedf2vfp)
301 NOT_HERE_UNTIL_AFTER_4_3(__negdi2)
302 NOT_HERE_UNTIL_AFTER_4_3(__negvdi2)
303 NOT_HERE_UNTIL_AFTER_4_3(__negvsi2)
304 NOT_HERE_UNTIL_AFTER_4_3(__nesf2)
305 NOT_HERE_UNTIL_AFTER_4_3(__nesf2vfp)
306 NOT_HERE_UNTIL_AFTER_4_3(__paritydi2)
307 NOT_HERE_UNTIL_AFTER_4_3(__paritysi2)
308 NOT_HERE_UNTIL_AFTER_4_3(__popcountdi2)
309 NOT_HERE_UNTIL_AFTER_4_3(__popcountsi2)
310 NOT_HERE_UNTIL_AFTER_4_3(__powidf2)
311 NOT_HERE_UNTIL_AFTER_4_3(__powisf2)
312 NOT_HERE_UNTIL_AFTER_4_3(__subdf3)
313 NOT_HERE_UNTIL_AFTER_4_3(__subdf3vfp)
314 NOT_HERE_UNTIL_AFTER_4_3(__subsf3)
315 NOT_HERE_UNTIL_AFTER_4_3(__subsf3vfp)
316 NOT_HERE_UNTIL_AFTER_4_3(__subvdi3)
317 NOT_HERE_UNTIL_AFTER_4_3(__subvsi3)
318 NOT_HERE_UNTIL_AFTER_4_3(__truncdfsf2)
319 NOT_HERE_UNTIL_AFTER_4_3(__truncdfsf2vfp)
320 NOT_HERE_UNTIL_AFTER_4_3(__ucmpdi2)
321 NOT_HERE_UNTIL_AFTER_4_3(__udivdi3)
322 NOT_HERE_UNTIL_AFTER_4_3(__udivmoddi4)
323 NOT_HERE_UNTIL_AFTER_4_3(__udivsi3)
324 NOT_HERE_UNTIL_AFTER_4_3(__umoddi3)
325 NOT_HERE_UNTIL_AFTER_4_3(__umodsi3)
326 NOT_HERE_UNTIL_AFTER_4_3(__unorddf2)
327 NOT_HERE_UNTIL_AFTER_4_3(__unorddf2vfp)
328 NOT_HERE_UNTIL_AFTER_4_3(__unordsf2)
329 NOT_HERE_UNTIL_AFTER_4_3(__unordsf2vfp)
330 
331 NOT_HERE_UNTIL_AFTER_4_3(__divmodsi4)
332 NOT_HERE_UNTIL_AFTER_4_3(__udivmodsi4)
333 #endif // __arm__ && __DYNAMIC__
334 
335 #else // !__APPLE__
336 
337 extern int avoid_empty_file;
338 
339 #endif // !__APPLE__
340